U.S. PATENT AND TRADEMARK OFFICE
Information Products Division |
U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
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(definitions have been obtained from the
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Class 269
WORK HOLDERS
Class Definition:
Class 269 is the residual locus for patents to a device
which, during a work treating operation, contacts a workpiece
for the purpose of (a) supporting the work against the force
of gravity; or (b) preventing movement of the work in a
particular direction or in all directions while, as
disclosed, such work is supported against the force of
gravity; or (c) providing a surface juxtaposed to the work
for constraining the motion of a tool during its performance
of such work treating operation.
Holding articles together so that (by disclosure) a glue,
cement or adhesive may set and secure said articles together
is considered to be a work holding operation for this class.
Thus a clamp or vise, disclosed for use by cabinet makers,
carpenters, woodworkers, etc., to hold plural pieces together
while an adhesive (previously applied) sets, is properly
classifiable in this class.
A "clamp" means, per se, to grasp or draw portions of a mold
or flask either together or onto a base or support is
structurally so similar to the work holders of this class
that patents to such clamp are classified in this class. This
is a specific exception to the functional workholding concept
otherwise maintained for this class.
PLACEMENT OF PATENTS
The following statement is supplemental to the explanation
set forth on pages I and II of the Manual of Classification.
As among coordinate subclasses, the rule of superiority
followed in this class requires placement of the "original"
patent copy in the first or highest subclass providing for
claimed subject matter. As between a subclass, providing for
such claimed subject matter, and subclasses indented
thereunder, patent placement is in the first of such indented
subclasses providing for disclosed subject matter. Thus,
depending upon the "superiority" of a particular subclass, an
original copy of a specific patent may be placed therein on
the basis of either claim or disclosure.
For example: A patent discloses a holder with a pair of
relatively movable jaws and an aligned hole in each of the
jaws so that a punch can move through the holes and perforate
the paper while the paper is held by the jaws. Only
relatively movable jaw means are broadly claimed. On the
basis of claimed subject matter the patent falls into
subclass 86, but then on the basis of the disclosed subject
matter the patent would be placed in the indented subclass
87.
LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
A. This class is intended to be, ultimately, the general
locus for all work holders regardless of the treatment that
is disclosed as being performed on the so held work. At
present, however, most work treating classes include patents
directed to work holders effective during the treatment which
characterizes such class. With the exceptions enumerated
below, no attempt has been made to incorporate such work
holders into this class. For a partial list of work treating
classes that provide for their own work holders, see
"Holders, Work" in the "Index To Classification".
B. At present, patents to be found in this class have been
screened from Class 29, Metal Working, subclasses 2.1+ and
700+; Class 30, Cutlery; Class 73, Measuring and Testing;
Class 82, Turning, subclasses 46+; Class 83, Cutting; Class
223, Apparel Apparatus; Class 225, Severing by Tearing or
Breaking; Class 156, Adhesive Bonding and Miscellaneous
Chemical Manufacture.
C. In addition to the above listed loci for work holders that
have been screened and the appropriate patents placed in this
class, the following loci have been abolished and
substantially all the patents reassigned to this class: Class
29, Metal Working, subclasses 284+; Class 65, Glass
Manufacturing; Class 81, Tools, subclasses 17+; Class 409,
Gear Cutting, Milling, or Planing; Class 144, Woodworking,
subclasses 288, 289+.
D. As other loci are screened, or reclassified, and patents
for work holders moved to this class, appropriate notation
will be added to B and C above.
HOLDER, PER SE, ELSEWHERE CLASSIFIED
(A) The following classes have provision for specific types
of article holding devices; and patents claiming such holding
devices as the sole claimed means for supporting the work
against gravity and falling within the definitions of such
classes are to be found in such classes rather than in this
class (269) even though work is disclosed as being treated
while so supported: Class 24, Buckles, Buttons, Clasps, etc.;
Class 81, Tools ;Class 108, Horizontally Supported Planar
Surfaces; Class 187, Elevator, Industrial Lift Truck, or
Stationary Lift for Vehicle, subclasses 203+ for a stationary
lift for a roadway vehicle which is to be repaired or
inspected; Class 211, Supports: Racks;Class 242, Winding,
Tensioning, or Guiding;Class 248, Supports, subclasses
26.1+;Class 249, Static Molds, subclasses 205+ for mold
adjuncts that hold mold parts in operative relation;Class
254, Implements or Apparatus for Applying Pushing or Pulling
Force;Class 279, Chucks or Sockets;Class 285, Pipe Joints or
Couplings;Class 384, Bearings;Class 312, Supports: Cabinet
Structure;Class 335, Electricity: Magnetically Operated
Switches, Magnets, and Electromagnets, subclasses 285+; Class
403, Joints and Connections; Class 433, Dentistry, subclasses
49+ for work holder specific to use in dentistry, especially
subclasses 54+ for articulators.
If, however, additional means not provided for in any of
these classes are claimed as supporting the work against
gravity, the patent will be found in this class. Also, if a
tool couple element* is claimed in addition to the holding
means the patent will be found in this class.
(B) Holding material for a nontreating purpose:
A device for holding material solely for a nontreating
purpose will not be found in this class but will be found in
the class providing for such holding means. See Class 248,
Supports, which is the locus of art for supports of general
utility. If a patent claims a holder which is disclosed as
being usable either to support work while it is treated or to
support material for a nontreating purpose, the patent will
be found in this class with a cross-reference in the
appropriate material supporting or holding class based on the
nontreating disclosure.
(C) Relationship to work treating classes whose work holding
subcombinations are placed in this class.
Exemplary types of treating and nontreating operations:
The following operations are deemed to come within the
definition of treating as set forth under the definitions of
this class: Stretching material, Testing material, Winding
material about a core, Assembly as by moving (i.e., with
means for moving) an article from one position to a second
position where it will be secured to a second article.
(Putting a cap on a receptacle is considered to be an
assembling operation and therefore a treating operation).
Exemplary operations considered to be of nontreating type:
Inspecting, measuring and gauging, filling a receptacle.
Merely holding an article or articles in place so that the
article can be secured to another article while so held is
considered to be a work holding operation of this class. See
RELATIONSHIP TO ASSEMBLY MEANS below.
WORK HOLDER IN COMBINATION WITH TREATING MEANS
(A) A patent claiming a work holder which has a claimed work
treating instrumentality as a part thereof, which is
disclosed as treating the work without cooperating with a
coacting tool will be found in the class providing for such
treatment, and not in this class.
Examples:
A patent claiming a fixed blade for severing work by manually
drawing the work thereagainst with a transverse tearing
action is found in Class 225, Severing by Tearing or
Breaking.
A patent claiming a work holder having a brush mounted
therein, for coating work moved against it, goes beyond this
class.
(B) Work holder having as a part thereof, specific means
which takes part in the treating function:
(1) A patent claiming a work holder including a tool couple
element*, and claiming in combination therewith the
cooperating element of the tool couple or the support for the
cooperating element, will be placed in the appropriate
treating class no matter how broadly the cooperating element
or its support is claimed. For example, a work holder having
a claimed edge or inserted cutting stick that is disclosed as
coacting with a movable cutter to cut the work will be found
in this class only if the movable cutter or its support is
not claimed.
(2) Distinction between a treating tool, per se, and a work
holder having a tool couple element*.
(a) A patent claiming a work treating tool, per se, will not
be found in this class even though the tool is disclosed as
supporting the work against gravity, if the portion of the
work contacted by the tool is only that portion of the work
which is to be treated and portions of the work immediately
adjacent thereto.
(b) A patent claiming a work holder having a treating tool,
per se, as a part only thereof will be found in this class.
(C) The following exceptions to this rule of distinction
are:
Excluded from this class is a patent claiming a roller having
a tool couple element* thereon and rotating about its axis
for the purpose of having work moved about the periphery of
the roller and partially envelop the periphery, so that a
portion of the work in contact with the periphery can be
treated while the roller is rotating and while the work is
moving about the periphery and another portion of the work
has relative movement with respect to the roller. Such a
patent is considered to be drawn to a tool and its support
and will be found in the class of the tool couple element.
Compare with RELATIONSHIP TO MATERIAL HANDLING CLASSES,
Movable work holder, paragraph 2, below.
Also excluded from this class is a patent claiming a work
holder carrying a tool couple element* which holder and
element are disclosed as being relatively movable during the
treatment of the work. Such a patent will be found in the
class of the tool couple element.
(C) Claimed combination of a work holder and a nominally
recited treating means:
The claiming of a work holder and the recitation of a work
treating means or its support (not part of or carried by the
work holder) is considered to go beyond the scope of this
class unless the tool or tool support is nominally claimed.
If the tool or tool support is nominally claimed, the patent
does not exceed the boundaries of this class unless there is
claimed a tool couple element* as described in WORKHOLDER IN
COMBINATION WITH TREATING MEANS, below. The following, for
example, are considered not to be nominal recitations of the
work treating means or its support:
(1) A limitation to a treating means structure or
characteristic as, for example, the claiming of a tool as
being "sharp" or the claiming of a tool or its support as
being "movable".
(2) A limitation to the relative positions of the treating
means or its support and the work holder as, for example, the
claiming of a tool or its support as being "above" the work
holder.
RELATIONSHIP TO MATERIAL HANDLING CLASS
(A) Movable work holder:
The subject matter of this class includes a work holder
having means for moving the work holder while it is holding
the work, either before, during or after treatment. Where,
however, such apparatus has been recognized as a material
transporter in an existing body of art, a patent thereto will
be found in such body of art. See the list of classes in the
class definition of Class 414, Material or Article Handling.
Where the claimed apparatus includes in addition to the
details of the recognized material transporter a tool or tool
couple element* the patent will not be found in a material
transporting class but in either this class or in the
appropriate work treating class depending on the criteria set
forth above in WORK HOLDER IN COMBINATION WITH TREATING
MEANS, above. For example, a patent claiming an endless belt
conveyor whose upper run is disclosed as holding work while
it is treated will be found in either Class 271, Sheet
Feeding or Delivering, Class 226, Advancing Material of
Indeterminate Length or Class 198, Conveyors: Power-Driven;
such work holding means being a recognized material
transporter. If the patent also claims a guide overlying the
upper run and having the disclosed function of guiding a work
cutting tool, the patent will be found in this class. If the
tool on the guide is claimed, the patent will be found in the
class of such tool.
The following exemplifies the rule set forth in the preceding
subsection. Excluded from this class is a patent claiming a
roller and not claiming a tool couple element* on the roller,
said roller rotating about its axis for the purpose of having
work moved about the periphery of the roller, and partially
enveloping the periphery, so that a portion of the work in
contact with the periphery can be treated while the roller is
rotating and the work is moving about the periphery and while
another portion of the work has relative movement with
respect to the roller. Such a patent will be found in the
appropriate material transporting class. Compare this
paragraph with WORKHOLDER IN COMBINATION WITH TREATING MEANS,
above.
A material transporter having the disclosed function of (a)
taking work to, or away from, an article to which said work
is secured as well as (b) holding said work in position while
it is being secured to, or unsecured from, said article is
considered to be beyond the scope of this class. See Class
414, subclasses 10+, Class 29, subclasses 700+ and Class 254
for such a device.
(B) Product removal means:
The subject matter of this class includes a work holder
having means for moving a product relative to the work
holder. Where however, such combination has been recognized
as a material transporter in a recognized body of art, the
patent will be found in such body of art. Where the claimed
apparatus includes, in addition to the details of such
recognized material transporter, a tool or tool couple
element* the patent will not be found in such recognized
material transporting class, but either in this class or in
the appropriate work treating class depending on the criteria
set forth in WORK HOLDER IN COMBINATION WITH TREATING MEANS,
above. For example; a patent claiming delivery rollers for
removing sheets from a table, which table is disclosed as
holding work during treatment will be found in Class 271,
Sheet Feeding or Delivering, even though the table is
claimed. If the patent also claims a slot in the table having
the disclosed function of guiding a work cutting tool, the
patent will be found in this class. If the tool moving in the
slot also is claimed, the patent will be found in the class
of such tool.
(C) Means to feed work to a work holder:
The basic subject matter of this class does not include the
claimed combination of a work holder and a means for moving
the work relative to a work holder portion, or for enabling
such movement to take place. Nor does the basic subject
matter of this class include a device for moving work with
respect to a work holder portion regardless of whether the
device supports or holds the work during treatment of the
work. For example, a gripper which holds and moves work with
respect to another work holder portion (claimed or disclosed)
is excluded from this class. Such a combination or device
will be found in the class appropriate for the work moving
means. If the referred to combination also includes a
significantly claimed tool or tool couple element*, the
patent will be found in the class of the tool. See Class 399,
Electrophotography, subclasses 377+ for holder of original
and subclass 393 for copy medium input tray; all support
structure is limited to use with an electrophotos:graphic
device.
If it is not clear from a patent specification whether a
claimed element of the patent is intended to move the work
relative to the holder or act as a part of a work holder, the
element will be construed as being a part of a work holder
and the patent will be found in this class. If such element
is disclosed as being capable of either moving the work with
respect to the work holder or acting as part of the work
holder, the patent will be found in the appropriate material
transporting class and may be cross-referenced in this
class.
For example: Where the claimed subject matter of a patent
includes an abutment which moves across a work supporting
surface that underlies the work and a drive means for
producing unidirectional intermittent movement of the
abutment across the supporting surface, the abutment will be
construed as pushing the work across the supporting surface
and the patent will be found in the appropriate material
transporting class.
(D) Means to guide moving work or product with respect to the
work holder:
The subject matter of this class includes a work holder and
passive means constraining movement of the work towards or
over the work holder, or of the product away from the work
holder, to a desired path. Where, however, such apparatus has
been recognized as a material handler in a recognized body of
art, the patent will be found in such body of art. Where the
apparatus includes, in addition to the details of such
recognized material handler, a tool or tool couple element*,
the patent will not be found in such recognized material
handling art, but either in this class or in the appropriate
work treating class depending on the criteria set forth in
WORK HOLDER IN COMBINATION WITH TREATING MEANS, above. For
example, a patent claiming only a trough which, by
disclosure, serves to support a pipe for a cutting operation
while the pipe is moving along the trough will be found in
Class 193, Conveyors, Chutes, Skids, Guides, and Ways. As a
second example, an invention relating to a power-driven
conveyor having means to facilitate working on the conveyed
load at a work station is included in Class 198, Conveyors:
Power-Driven, subclasses 339+, or, in the case of a
power-driven conveyor having means to change the attitude of
the conveyed load relative to the conveying direction, in
subclasses 373+ of the same class. As a third example, a
patent claiming a flat work supporting table having air jets
mounted therein which blow against the bottom of the work so
as to permit the work to be moved more easily over the table
will be found in Class 414, Material or Article Handling,
subclass 676. If either patent claims, in addition, a slot in
the trough or table which is disclosed as coacting with a
movable cutter to cut the work, the patent will be found in
this class. If, in addition, the cutting tool is claimed, the
patent will be found in the class of such tool.
RELATIONSHIP TO ASSEMBLY MEANS (CLASS 29)
The claimed recital of means to hold a piece of work relative
to another piece of work for purposes of juxtapositioning
and/or securing has been considered to be a work holding
operation for this class. (See above, HOLDER, PER SE,
ELSEWHERE CLASSIFIED, section C, Exemplary styles of treating
and nontreating operations, 2nd paragraph). However, the
inclusion of (A) means to move the individual pieces to
effect such juxtapositioning or (B) means to guide the pieces
during movement is considered to be an assembling operation
for Class 29, subclasses 700+. For example, with respect to
(B), a patent with limitations to a work holder including a
tapered pin (said taper being claimed) so as to align the
holder with another holder during relative movement of said
holders, no means for such movement being claimed, is
considered to go beyond a work holding function for this
class, and would be placed in the assembling art of Class
29.
RELATIONSHIP TO PRESS MEANS (CLASS 100)
Structural differences between devices labeled vise, clamp,
work holder, or press are often lacking. The differences, if
any, lie in the use to which these devices are applied. Where
material is engaged and compacted by the engaging means the
term "press" (Class 100) is considered appropriate. Where
material is engaged to support and/or immobilize said
material during treatment the term "work holder" (Class 269)
is considered appropriate. It should be noted that Class 100
is only the residual press class, other classes (such as 65,
72, etc.) providing for presses relating to specific material
and modifications. Similarly, Class 269 is only the residual
work holder class, other classes (Class 65, Class 118, Class
408, Class 451, etc.) including work holders effective during
the specific treatment characterizing such classes.
The work holders of Class 269 (with one exception - tool
couple element*) do not include means to modify or treat the
material engaged. For the purpose of keeping similar
structure together it is deemed best that, as between Class
100 and Class 269, the setting of an adhesive, previously
applied, to material is considered to be a treatment of said
material, which material is therefore considered to be
"work". Thus a device to hold plural pieces while an adhesive
(previously applied) sets, is considered appropriate for this
class (269). However, a work holder for holding plural pieces
while an adhesive sets, proper for Class 269, combined with
means for heating, cooling or fluid contact, is considered a
combination classifiable in Class 100.
A device for continuously processing material, involving
means for a shifting area of contact between the device and
the material, while a bonding agent between component parts
of the material sets, is considered to be a form of treating
device in itself and as such is excluded from Class 269.
Class 100 is considered to be superior to Class 269 and as
such the appropriate locus for patents relating to work
gripping devices not clearly provided for in Class 269 or by
the notes thereto.
MISCELLANEOUS NOTES
Convertible devices:
A patent claiming a device with means which by adjustment,
addition, removal or reassembly of one or more of its parts
may, at the discretion of an operative, be capable of
performing a function as a work holder for this class or a
function falling within the scope of another class will be
placed in said other class. For example, a patent for a
device which, as claimed, is adjustable for use as a vise or
readjustable for use as a wrench will be placed in Class 81,
subclasses 53+, a with the wrench art.
A patent claiming a work holder having relatively movable
jaws convertible to a work shaping means, said conversion
providing means to hold and shape work is placed in Class 29,
Metal Working, subclass 560.1 with appropriate
cross-reference in this class and/or the proper shaping class
for specific individual features.
Relationship to classes of composition of matter:
A work holder defined in terms of its composition, without
any significant structure claimed, will be found in the class
providing for the composition and not in this class.
Relationship to classes of power transmitting means:
A patent limited in its claims to a means for driving or
moving a work holder element, with the element defined merely
as the named load of the driving or moving means, will be
found in the class providing for such driving or moving means
and not in this class. If any significant structure of the
holder element is claimed, the patent will be found in this
class.
Combination with work supply holder:
This class includes the combination of a work holder and a
holder for the supply of work which is to be placed in the
work holder. An example of such a work supply holder is a
reel from which a web of the work may be unwound to be placed
on the work holder. The work supply holder is not considered
to be a work holder unless that portion of the work which is
on the work supply holder is disclosed as being treated.
Combination with geometrical instrument or geometrical
indicia:
This class includes the combination of a work holder and a
geometrical instrument or geometrical indicia, as for
indicating desired distances along or positions in the basic
device of this class.
Processes of work holding:
Class 29, Metal Working, subclass 559, is the residual locus
of patents directed to methods of holding work. A patent
including a claim to a work holding method would be placed in
subclass 559 and cross-referenced back to Class 269, if
necessary, for disclosed or claimed work holding structure.
Processes of making a work holder:
Class 76, Metal Tools and Implements, Making, subclasses
101.1+, is the residual locus for patents to a blank for, or
a process of, making a work holder.
The class of adhesive bonding:
Class 156, Adhesive Bonding and Miscellaneous Chemical
Manufacture, subclasses 502 and 503 include work-holder with
treatment means, e.g., heating, cutting, etc.
GLOSSARY:
Terms or phrases used in titles and definitions either
repeatedly or in a special and limited sense are set forth
below with the meaning each is to have in this class. For
economy of space, an asterisk (*) following a word indicates
that reference should be had to this glossary for the
specific meaning thereof, while an asterisk following an
underlined phrase (e.g., holder mounted for movement*)
indicates that the entire underlined term as such, has been
defined in this glossary.
ACTUATION (ACTUATE, ACTUATING, ETC.)
The application of (a) a bias (resilient or gravity) or (b) a
mechanical advantage, or (c) the use of a lost motion
mechanism to effect the relative movement of jaws. The use of
levers, inclined planes, pulleys, gears, cams, fluid systems,
etc., even where such means fail to produce force
multiplication, or actually provide a force reduction, is
considered enough to constitute actuation means rather than
adjustment* means.
ADJUSTMENT (ADJUST, ADJUSTING, ETC.)
The shift of a jaw or jaws into juxtaposition with work
without the application of (a) a bias (resilient or gravity)
or (b) mechanical advantage effective to press or grip work
or (c) utilizing a "lost motion mechanism". This shift may be
(d) no more than a "quick setting" of a jaw of a particular
device (e.g., the use of a split nut to initially position a
jaw for gripping movement along a lead screw) or (e) a change
of the range* limits (e.g., the use of a pawl and rack lock
to initially position a jaw for gripping movement by a cam or
eccentric). While the shift of (d) and (e) are both
considered to be jaw adjustment only (e) represents a true
variation of range limits; i.e., the full cam throw will move
the jaw one inch (the range whether the pawl and rack setting
provides a work accommodating span of three, or ten inches).
ADJUSTMENT-LOCK
The immobilization, or securing against movement, of
structural elements constituting the means for jaw
adjustment*. An adjustment-lock may be effected (a) by a
shift in relative position of the structural elements being
immobilized (as, for example, in subclasses 166+) or (b) by
positioning an additional element to effect the desired
binding or securing.
The immobilization, securing, or binding referred to may be
only relative rather than absolute, in the sense that further
movement or positioning of the structural elements requires
the utilization of actuating* means.
The adjustment-lock effected may in fact be limited to a one
way latch or binding. For example, in some of the pawl and
rack locks of subclasses 212+ the structural elements, when
said pawl and rack are engaged, cannot be further adjusted
except in a direction favored by the inclination of both rack
teeth and pawl; and similarly, in the simple cant type lock
of subclass 166 the structural elements, when relatively
askew, resist adjustment in a direction tending to further
accentuate the degree of cant but are freely adjustable in
the direction tending to reduce the degree of cant.
CAM, ECCENTRIC
A rotatable, pivotal or rockable member having a contour,
which contour is not uniformly concentric with the pivotal or
rotational axis of the member, and which contour, as it moves
with respect to said axis, imparts a to-and-fro movement to a
follower element bearing against said contour. The movement
of said follower element, as the point of mutual contact
between the member and the element shifts along the contour,
is thus prescribed by the configuration of said contour with
respect to the axis of rotation. The contour may be a
modification of a peripheral or radial surface with respect
to the pivotal or rotational axis or a configured groove,
ridge or slot lying in the general plane of either surface.
Thus the effective movement of a follower element caused by
pivoting or rocking the cam member, is measurable along lines
normal to the member axis or parallel to the member axis. The
follower element is usually mounted for sliding or pivoting
movement with respect to the cam member. In some instances
the contour, referred to above, is part of the follower
element.
In this class the terms "cam" and "eccentric" are used
interchangeably.
See (3) Note under subclass 165 and (1) Note under subclass
229 for wedge adjustment and wedge actuating means.
CLAMP COUPLE ELEMENT
Structure limited to one jaw* plus the means to adjust*
and/or actuate* said jaw relative to a disclosed, but not
claimed, coacting jaw.
HAND (MANIPULATE)
The term "hand" (or "manipulate") is used in the sense of "by
contact with a living being" and includes hand, foot, head,
etc. Specific recital of foot, pedal, etc., is limited to
such recital.
HOLDER MOUNTED FOR MOVEMENT
A device in which a work holder is structurally related with
respect to a member on which it is supported so that the work
holder may be moved to a limited extent or in a definite
path(s) with respect to its supporting member. The entire
holder, i.e., the structure which contacts and thus actually
supports the work, must be capable of movement while work is
held. In the case of a work underlying support (as in
subclasses 289+) such underlying support is considered
mounted for movement even though the clamps or fastening
means needed to keep work from sliding off are not claimed.
HOLDER SUPPORT, MOUNT, OR BASE
A work holder support is the structure for positioning work
contacting elements, including the associated adjusting
and/or operating means for said work contacting elements,
with respect to a reference member (table, floor, wall, rack,
bench, etc.). Such support structure may be integral or
articulated with a work contacting assembly and is provided
with means for maintaining position of said assembly with
respect to the reference member. The position maintained may
be adjustable with respect to a particular reference member
by (a) relative shifting of parts or links constituting the
work holder support or by (b) relative shifting of the
articulated joint structure between the work contacting
assembly and the work holder support. The position may also
be varied by (c) temporary fastening means selectively
securing the work holder support to different reference
members or different portions of the same reference member.
A work holder support means such as (a) or (b) above is
generally disclosed as positionable either (1) preparatory to
engaging work or (2) while the work is being held. Since in
many instances the structure for (1) will serve for (2) and
vise versa, no attempt has been made to distinguish
classificationwise on this basis. Both (1) and (2) are
treated, unless specifically noted otherwise, as (2) and
provided for under Holder Mounted For Movement*.
A work holder support means such as (c) above is not
considered as a Holder Mounted For Movement* and if claimed,
per se, will be found in Class 248, Supports.
MANIPULATE
see "HAND"
PRODUCT
The material that is placed in, or on, or in juxtaposition
to, the work holder in the condition in which such material
exists after it has been treated.
RANGE
The extent or span of relative jaw movement, without
reference to the work to be engaged, as predetermined by the
structural relationship between elements of the means to
actuate* said jaws. For example: shifting a split nut on a
screw to initially position a jaw carried by said nut does
not involve a range change since the nut can still travel the
full extent of the screw; however, changing the degree of
eccentricity of a jaw actuating element does involve a range
change since the operation of said actuating element will now
result in a variation of the effective throw of said element
and its associated jaw.
SIMPLE MOVEMENT
The following, only, are considered to be simple movements of
a work holder:
(a) A movement in which all of the work holder swings about a
fixed axis except for the part lying on the axis, i.e.,
rotational movement.
(b) A movement in which each point on the work holder moves
in a single rectilinear path; i.e., rectilinear movement.
JAW
(a) One of the plural portions of a work holder couple which
engages or grips a workpiece. Generally, the jaw is taken to
include the work contacting surface and that part of the
holder which (1) is contiguous to said surface as well as
that portion which (2) if moveable, moves bodily in congruent
fashion with said surface. (See subclass 271 for the
definition of a jaw attachment or insert).
(b) A work holder portion with an underlying work contacting
surface, for which see subclass 289, especially (2) Note, is
not considered to be a jaw, unless claimed in combination as
one of plural coacting work gripping elements. However, a
work holder portion with an overlying work contacting
surface, which portion ordinarily is incapable of functioning
as a work holder in the absence of a coacting underlying
support means, will be considered as a jaw even if there is
no claimed reference to said coacting underlying portion.
(See subclasses 37+ for plural holders which separately hold
at least two workpieces relative to each other; each such
holder is considered to be more than a jaw).
(c) As an exception to (a) which states that a "jaw" must be
one of a couple; a work engaging member, which as claimed (1)
includes plural, abutting, nonparallel, flat work engaging
surfaces; (2) each such flat surface, coacting with a
different one of plural work engaging elements as one of a
plurality of work engaging elements as one of a plurality of
work holding couples, is considered to be a common jaw member
cooperating with a plurality of jaws. (See subclass 104 for
patents to a holder with plural jaws coacting with a common
angle-corner jaw to hold the same workpiece). (See subclass
154 for patents to a holder with plural jaws coacting with a
common flat jaw surface to hold work or workpieces).
(d) Unlike (c) above, a work engaging member which as claimed
includes either (1) plural, nonabutting, work engaging
surfaces or (2) plural, abutting, curved, work engaging
surfaces, and which surfaces (1) or (2) each coact with a
different one of plural work engaging elements, is not
considered to be a "common" jaw member. Hence such a
configured work engaging member in combination with coacting
plural elements does not constitute plural jaw pairs either
for subclass 104 or subclass 152. (See subclasses 257+ for
specific jaw features, per se).
The following figure is illustrative of plural, nonabutting,
work engaging surfaces B1 and B2 referred to in (d) (1)
above. [figure]
The following figure is illustrative of plural abutting,
curved, work engaging surfaces E1, E2 and E3 referred to in
(d) (2) above. [figure]
(e) Each of three mutually adjustable* and/or actuable* work
contacting elements effective to hold work (as in subclass
156) is also considered to be a jaw.
In both rotational and rectilinear movement, the movement may
be in steps, backwards, or forwards.
TOGGLE
A linkage including at least two links, pitmans, bars or
struts, and at least three pivots, the end of one link being
connected to the end of the other link by a pivot common to
both links, each of said links also having a pivot at the end
remote from the common pivot, which common or intermediate
pivot is movable from a position not in a straight line with
the other two pivots, to a position substantially in line by
a force applied to the intermediate pivot in a direction
substantially normal to one of the links thereby moving at
least one of the two pivots away from the other. At least one
of said links is articulated at both ends and is not integral
with either a jaw or handle.
TOOL
An instrumentality for effecting treatment of the work.
TOOL COUPLE ELEMENT
The portion of a work holder whose disclosed function is to
(a) coact with a relatively movable work treating tool to
treat the work, or (b) act as a guide for a relatively
movable work treating tool to directly or indirectly
constrain the tool for movement in a particular path, or (c)
limit the movement of a work treating tool relative to the
work so that it may contact only a portion of the work and is
prevented from contacting another portion of the work.
To be recognized as such, the tool couple element, if it is
part of the work contacting portion of the work holder, must
be of different structure than the rest of the work
contacting surface, or must be a particular, definable,
portion of the work contacting surface such as an edge
thereof.
TREATMENT OR TREATING
An operation which modifies the shape or changes a
characteristic of material, assembles pieces of material
together, disassembles pieces of material, or applies fluid
(nonpropellant) to material. See WORK HOLDER IN COMBINATION
WITH TREATING MEANS and RELATIONSHIP TO PRESS MEANS, above.
WORK
The material that is placed in, or on, or in juxtaposition
to, the work holder for treatment in the condition in which
such material exists prior to its being treated or during
treatment.
WORK-STOP ABUTMENT
(a) An element positioned adjacent a surface which supports
the work against the force of gravity, and which element
presents an obstacle that restrains the movement of the work
across the surface in a particular direction, including the
necessary supporting frame work for such element.
(b) The inclusion of an opposing or coacting element engaging
the work, so as to grip said work between the "abutment" and
said element, is considered to be characteristic of a jaw*
relationship and such combination, claimed or disclosed, is
not a work-stop abutment.
SUBCLASSES
Subclass:
1
This subclass is indented under the class definition. Device
which, when used during the work treating operation, (A)
derives substantially all of its support from the work to be
treated or any position thereof or (B) is held solely by the
operator either directly or through an operator either
directly or through an operator-manipulated grappling device,
and which has a portion thereon serving as a tool couple
element*.
(1) Note. If it is not clear from a patent disclosure
whether the claimed device falls within the definition of
this subclass or of one of the coordinate subclasses
following in this schedule, the patent will be found as an
original in this subclass or a subclass indented thereunder.
(2) Note. See HAND*.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3 for patents to an operator supported holder that does not
include a tool guide.
Subclass:
2
This subclass is indented under subclass 1. Device wherein
the work is maintained in the tool guide by being gripped
between two surfaces, at least one of which is movable with
respect to the other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86 for patents to a holder with relatively movable jaws.
Subclass:
3
This subclass is indented under the class definition. Device
including a portion whereby the entire device is held against
the force of gravity by a living being during work
treatment.
(1) Note. The portion disclosed as held by an operator must
be clearly claimed as a handle or in structural terms
peculiar to such handle function. A "handle" for
"adjustment"* or for "actuation"* only is not considered an
operator supported feature for this subclass.
(2) Note. See HAND*.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1 for patents to an operator supported holder and tool
guide.
SEE OR SEARCH CLASS:
81, Tools, 300, for patents to pliers and see search notes
thereunder and subclass 487 for a hand held holder or clamp
for manipulation of an article rather than work treatment.
294, Handling: Hand and Hoist-Line Implements, appropriate
subclasses for hand-held grapples, manipulators, and carriers
for articles.
Subclass:
4
This subclass is indented under subclass 3. Device having
means which, by a rearrangement, addition, removal or
reassembly of one or more of its parts, permits the device to
serve as either an operator supported holder or a base
supported holder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
96 for patents to a holder, per se, either a wrench or
plier, with means to fasten said holder to a support.
Subclass:
5
This subclass is indented under subclass 3. Device wherein
the portion supported by an operator includes an aperture
through which work may extend into a supporting or gripping
zone.
(1) Note. Usually, the opening permits a fresh portion of
work to be extended into a gripping zone after operation on a
previously gripped portion.
SEE OR SEARCH CLASS:
30, Cutlery, 124, for patents to cutlery implements combined
with means to hold material to be cut.
Subclass:
6
This subclass is indented under subclass 3. Device wherein
the portion supported by an operator is moved relative to
another portion of the holder, or relative to itself, to
actuate a jaw or jaws.
Subclass:
7
This subclass is indented under the class definition. Device
for holding work by means of a work engaging material,
changeable from liquid or fluent state (which liquid state
permits movement of the work) to a solid or rigid state
(which solid state immobilizes the work).
(1) Note. Included here are patents which hold work by means
of freezing a portion in ice.
SEE OR SEARCH CLASS:
62, Refrigeration, appropriate subclasses, for patents to a
refrigeration process and/or apparatus, per se.
Subclass:
8
This subclass is indented under the class definition. Device
for holding work by subjecting said work, or a work
contacting element, to the forces exerted by a magnetic
field.
(1) Note. The magnetic field may be that of a "permanent"
magnet or that induced by an electric current.
(2) Note. Included here are patents to a holder for
nonmagnet material wherein the magnetic forces act on a work
gripping element, which element holds the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
216 for patents to a holder with other than magnetic
actuating* means.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 289 for electromagnetic type work
holding means, per se.
Subclass:
9
This subclass is indented under the class definition. Device
including at least two separate holding means, at least one
of which is disclosed as being utilized for work holding
purposes at a different time than another work holding means,
at the will or option of an operator, rather than by machine
sequence.
(1) Note. The holding means are separate to the extent that
each work holding means can maintain or position a workpiece
(a) without requiring the presence of other workpieces or
other holding means, or (b) each holding means has its own
actuating* and/or adjusting* means.
(2) Note. Excluded from this subclass are patents to a
device having a first work holder mounted on a second work
holder so that the first work holder must be completely taken
off the second work holder before the second work holder can
be utilized.
SEE OR SEARCH THIS CLASS, SUBCLASS:
37 for patents to a plural holder to hold workpieces
relative to each other, and see notes thereunder.
152 for patents to holder with plural jaw pairs and see
notes thereunder.
315 for patents to a work-stop abutment mounted on another
work-stop abutment so that the former must be completely
taken off the latter abutment before the latter may be used
to engage the work.
Subclass:
10
This subclass is indented under subclass 9. Device wherein
at least two of the selectively used work holders are
work-stop abutments*, and the work is disclosed as being
supported against the force of gravity on the same support
surface while in contact with either of the work-stop
abutments.
(1) Note. Since the work-stop abutment is considered to be a
work holder for this class, two or more such abutments
constitute plural holders. The selective use of said plural
abutments thus effecting placement in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
315 for other patents having a work-stop abutment.
Subclass:
11
This subclass is indented under the class definition. Device
wherein means are provided to cast or direct light on the
work holder.
(1) Note. A patent claiming the illuminating means without
claiming the work holder will be found in the class providing
for the illuminating means.
SEE OR SEARCH CLASS:
362, Illumination, appropriate subclasses, for illuminating
means, per se, and 109 for illuminating means combined with
the structure being illuminated.
Subclass:
12
This subclass is indented under the class definition. Device
wherein means are provided to cause interrelated movement of
the parts of a work assembly, while said assembly is mounted
in the holder, to simulate operating conditions of the work.
Subclass:
13
This subclass is indented under the class definition. Device
wherein means are provided which enable at least a portion of
the product, to be removed from the work holder, or which
implement or accomplish such removal.
(1) Note. See section VI, B under the class definition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
15 for patents for a device having a catch pan to collect
material falling from the work.
Subclass:
14
This subclass is indented under subclass 13. Device wherein
the product discharge facilitator includes a means for
applying a force to the product so as to impart movement
thereto.
Subclass:
15
This subclass is indented under the class definition. Device
wherein a receptacle is provided to collect material which
leaves or falls from the work or product.
SEE OR SEARCH THIS CLASS, SUBCLASS:
13 for patents for a work holder having a product discharge
facilitator which includes a receptacle for receiving the
product.
Subclass:
16
This subclass is indented under the class definition. Device
wherein the work holder includes a place or space disclosed
as being provided to store a workpiece element or a work
treating instrumentality to be used in treating the work.
(1) Note. The workpiece element when so stored is not in the
position it assumes in the work holder while being treated;
and the work treating instrumentality is not in the position
it assumes when it is treating the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
15 for patents for a catch pan that intercepts a workpiece
element falling from the work.
SEE OR SEARCH CLASS:
38, Textiles: Ironing or Smoothing, subclass 111 for ironing
tables combined with a work catcher.
112, Sewing, subclass 217.1 for a sewing machine table
combined with a work catcher.
Subclass:
17
This subclass is indented under the class definition. Device
wherein the work holder has a means (such as a wheel) thereon
for contacting a fixed surface beneath the work holder (such
as a floor or the ground) and whose disclosed purpose is to
enable the work holder to be moved on the surface, in any
desired direction, from one place to another.
(1) Note. A patent claiming a vehicle and not claiming a
work holder will be found in the class of the vehicle
regardless of whether a work holder is disclosed. See Class
180, Motor Vehicles, and Class 280, Land Vehicles.
Subclass:
19
This subclass is indented under the class definition. Device
including a visual gage means for determination of the
vertical and/or horizontal position of the workpiece and/or
holder being held.
(1) Note. The gage is usually a spirit level.
(2) Note. Included here is a group of patents claiming means
disclosed for use as a plasterer's corner bead setter which
include visual gage means. To facilitate an art search, known
patents disclosed for the same art purpose, though not
showing a plumb indicator, are also placed here as
cross-references.
SEE OR SEARCH THIS CLASS, SUBCLASS:
365 for levels or plumbs, per se.
SEE OR SEARCH CLASS:
33, Geometrical Instruments, subclass.
Subclass:
20
This subclass is indented under the class definition. Device
including pneumatic or hydraulic means, or both, for holding,
releasing, and/or force-applying purposes.
(1) Note. The fluid means may also be utilized to (a)
"float" a portion of the work or work holder, (b) eject a
workpiece, (c) remove unwanted particles falling on or
adjacent the work holder during treatment, or, (d) any
combination of (a), (b), and/or (c).
(2) Note. If a patent is silent as to how a cylinder or
piston is returned to its normal or starting position, or if
a patent discloses nonfluid means for returning a cylinder or
piston, and there is no disclosure pertinent to any one of
the indented subclasses, such patents will remain in this
subclass.
(3) Note. If a patent discloses that a vacuum means is used
only to remove a weighted element from the work (e.g., if
suction is used to lift a cylinder above a workpiece, and
allowing atmospheric air to re-enter the cylinder lets the
cylinder descend onto the work by its own weight) such patent
will remain in this subclass.
(4) Note. A fluid "cushion" chamber that is passive, rather
than active, and is controlled only by (a) a valve means
exhausting to atmosphere, or (b) a valve means exhausting
into an unconfined liquid receptacle, or (c) a conduit which
connects said chamber with a confined (second) chamber having
a fixed pressure, or (d) any combination of (a), (b), and/or
(c) is not deemed to be a device for moving a jaw or holder
for any one of the indented subclasses, and, if only such a
means is claimed as part of a work holder, then the patent
will remain in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
7 for patents including the use of a "freezing" means to
hold work.
13 for patents for a product discharge facilitator which may
include fluid means to perform this function, and, see the
notes thereunder.
55 for patents including a similar means to a complete
holder.
157 for patents for a holder including means to bias a
jaw(s) toward a nonholding position.
216 for patents for a similar means to move a jaw(s).
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, 3.12 and 300+
for patents for a device in which a fluid contacts the work,
and see the notes under subclasses 3.12, 300 and 301.
16, Miscellaneous Hardware, 49 and 82+ for patents for a
fluid check and closer.
60, Power Plants, 325, for a force applying motor of general
utility supplied with motive fluid from a pressure fluid
source.
91, Motors: Expansible Chamber Type, for patents for
structure of a fluid motor, per se, and see the notes under
the class definition.
100, Presses, 269.01, for patents for a press including fluid
means to move one or more pressure surfaces, and see the
notes thereunder.
137, Fluid Handling, for patents for a fluid handling means,
and see the notes under the class definition.
188, Brakes, 266, for a fluid-resistance brake or shock
absorber.
192, Clutches and Power-Stop Control, for patents to a
clutch, especially subclasses which include "fluid" in the
title.
279, Chucks or Sockets, subclass 3 and 4.01+, for patents
including a vacuum and a fluid operated chuck, respectively,
and see the notes thereunder.
418, Rotary Expansible Chamber Devices, for rotary expansible
chamber devices, per se.
Subclass:
21
This subclass is indented under subclass 20. Device wherein
the fluid pressure means operates to produce a difference in
the pressures upon at least two sides of a workpiece, or a
portion of a complete holder, which difference is effective
to hold the work or the holder.
Subclass:
22
This subclass is indented under subclass 20. Device
including a flexible wall element, one side of said element
being forced into contact with a workpiece by fluid pressure
applied to the other side of said element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
275 for patents including a yieldable jaw element that may
be placed either on the diaphragm, or between the diaphragm
and the work.
SEE OR SEARCH CLASS:
100, Presses, 211, for patents to a press with a deformable
pressure surface.
137, Fluid Handling, 777, for patents for a fluid handling
device having one or more flexible wall elements, and see the
notes under subclasses 784 and 793.
Subclass:
23
This subclass is indented under subclass 20. Device
including means operable to (A) cease the continued
application of fluid pressure, (B) cease jaw* movement, (C)
insert blocking means between opposed jaws, or (D) any
combination of (A), (B), and/or (C); such means may be
dormant, movable or activated by a condition (such as the
absence of a workpiece in the work holder) to prevent injury
to a worker, and/or to avoid damage to the material being
treated or the work holder itself.
SEE OR SEARCH THIS CLASS, SUBCLASS:
257 for patents to holder jaw features which may prevent the
work from being damaged by the jaw.
SEE OR SEARCH CLASS:
100, Presses, subclasses 341- 352, for patents to a press
including safety means.
Subclass:
24
This subclass is indented under subclass 20. Device wherein
(A) one holder, or holder portion, is moved in response to,
and after, the movement of a second holder, or holder
portion, or (B) a main drive unit activates a first holder
prior to activating a second holder, or (C) any combination
of (A) and (B).
SEE OR SEARCH THIS CLASS, SUBCLASS:
107 for patents including an interrelated actuating means
for angularly related jaw couples.
SEE OR SEARCH CLASS:
100, Presses, subclasses -352, for patents for a press
including interrelated actuators.
Subclass:
25
This subclass is indented under subclass 20. Device wherein
(A) a fluid means is used to relatively move a solid (or
hollow) member that has a generally circular periphery having
a close fit within a surrounding hollow member that is
similarly configured, and (B) one of these two members moves
an immediately adjacent jaw*(s).
(1) Note. Patents will be placed in this subclass where (a)
the movable piston or cylinder serves as a jaw itself, (b)
the piston or cylinder is rigid with a jaw, or (c) a jaw is
connected to the piston or cylinder by a pivot means or by a
single universal-type joint.
(2) Note. There may be an additional jaw(s) that is
independently adjusted* or actuated* by nonfluid means,
provided such jaw(s) is not inter-related with the fluid
operated jaw(s).
(3) Note. There may be a mechanical and/or electrical means,
operated by a human operator, that starts or continues the
operation of the fluid means; but, if there is a mechanical
means between the fluid means and the jaw(s), see subclass 27
and the notes thereunder.
(4) Note. Compare the sketches under this subclass 25 and
subclass 32 for illustrative examples of the structural
variations that distinguish the subject matter placed in
these groups of subclasses.
(5) Note. In the figure below, the jaw 1 is pivoted (at 2)
to the piston rod 3 which is moved by the piston 4 operating
within the cylinder 5. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
27 especially subclasses 32+, for patents to a fluid
operated holder including additional positioning means, and
see the notes thereunder.
257 for patents to a jaw (face) feature, per se.
Subclass:
26
This subclass is indented under subclass 25. Device
including means for interconnecting a supply of fluid under
pressure to two or more fluid actuated* cylinder-piston
means, so that the pressure exerted from said (usually common
or single) source will be applied to the same extent on each
of two or more jaws while they are contacting work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
33 for patents including an opposed cylinder-piston means
having additional positioning means, and see the notes
thereunder.
107 for patents for a holder with angularly related jaw
couples having interrelated actuating means.
152 for patents to a holder including plural jaw pairs.
Subclass:
27
This subclass is indented under subclass 20. Device
including a cylinder-piston unit as set forth in (A) of the
definition of subclass 25; and further means, either directly
connected to or interrelated with said unit, to add to the
efficacy of the unit, or to perform some function that said
unit standing alone could not perform.
(1) Note. Patents including a fluid unit (usually the
cylinder) that is moved as an entirety, by either fluid or
nonfluid means, prior to operating said unit (cylinder) to
actuate its associated jaw will be placed in this and
indented subclasses.
(2) Note. See (2) Note under subclass 20.
(3) Note. Valving means, whether singular or plural, in
parallel or in series, manual or nonmanual, are not deemed to
be "additional positioning means" in series with fluid means
unless the valve(s) is so connected or related that a portion
of the valve structure itself moves a jaw or holder in
addition to performing its function of directing the fluid
and/or modifying the fluid pressure; such patents will be
placed in subclasses 25+, if otherwise appropriate.
(4) Note. See the sketches accompanying the definitions of
subclasses 25 and 32.
SEE OR SEARCH THIS CLASS, SUBCLASS:
25 for patents including a cylinder-piston unit(s) that
directly moves an associated jaw(s) without additional
positioning means.
Subclass:
28
This subclass is indented under subclass 27. Device
including (A) a pneumatically operated pressure means that
moves one or more elements of a hydraulically operated
pressure means, or (B) a compressible fluid chamber within an
incompressible fluid chamber including means to increase or
decrease the pressure exerted by said compressible fluid, or
(C) the air and liquid means may be reversed in either (A) or
(B); or (D) any combination of (A), (B), and/or (C).
(1) Note. See (4) Note and the search notes under subclass
20.
Subclass:
29
This subclass is indented under subclass 27. Device
including a fluid reservoir and means by which a human
operator can, by the manipulation of parts, increase and/or
decrease the pressure within said reservoir.
Subclass:
30
This subclass is indented under subclass 27. Device wherein
a single pneumatic or hydraulic source is used (usually
through valve means) to hold and release a jaw* carrier; or
such means is used to move (A) a jaw, (B) a jaw carrier, (C)
mechanical means associated with a jaw or carrier, or (D) any
combination of (A), (B), and/or (C), both toward and away
from a workpiece.
(1) Note. This subclass requires the single fluid unit to
move at least one element in each of two opposite (180 deg.)
directions. If a spring (or similar means) is used to move
the element in one of the two directions, see (2) Note under
subclass 20 and see subclasses 32+.
(2) Note. See (4) Note and the search notes under subclass
20.
Subclass:
31
This subclass is indented under subclass 30. Device
including (A) at least one fluid means that is movable, as a
unit, at a fixed distance about a point on a work holder; or
(B) at least one fluid means that is swivelly connected, at
some point on the unit, to a fixed point on a portion
(stationary or movable) of the work holder; or (C) a
combination of (A) and (B).
SEE OR SEARCH THIS CLASS, SUBCLASS:
55 for patents including a complete holder mounted for
movement, and see the notes thereunder.
216 for patents including nonfluid actuating* means which
may be pivoted to a work holder.
Subclass:
32
This subclass is indented under subclass 27. Device
including adjusting* and/or actuating* means positioned
between (A) a jaw* and (B) the cylinder or piston of the
jaw's pneumatic or hydraulic actuating means.
(1) Note. See (3) Note under subclass 27.
(2) Note. In the figure below, the link 6 is pivoted to a
jaw 5, and the pivot for the link 3 is fixed at 4.
Reciprocation of the piston rod 1 moves the movable pivot 2
and the jaw 5 to and from the work W. [figure]
Subclass:
33
This subclass is indented under subclass 32. Device wherein
at least one cylinder-piston unit moves its jaw*, in a
straight line, toward a cylinder-piston unit similarly moving
a second coacting jaw at a 180 deg. angle with respect to
said first mentioned jaw.
(1) Note. One or more of the cylinder-piston means may be
movable out of the opposed relationship.
(2) Note. The plural cylinder-piston means may operate from
a common source of fluid supply, or from independent
sources.
SEE OR SEARCH THIS CLASS, SUBCLASS:
25 for patents to a holder including a jaw(s) moved directly
by a cylinder or piston without additional positioning
means.
140 for patents to a holder with separate positioning means
for each of a jaw pair.
218 for patents to a holder with common actuating means for
each of a jaw pair.
Subclass:
34
This subclass is indented under subclass 32. Device
including at least one fluid means which, when operated,
forces physically separated plural jaw* elements into contact
with the work at spaced points.
(1) Note. Patents including an insert between the plural jaw
elements defined above and the work are included in this
subclass.
(2) Note. The jaws may be parallel, angularly related, or a
combination of both; or a single fluid unit may operate
through linkages to move each of at least two jaws into
contact with (a) adjacent points on one side of the work, or
(b) points on opposite sides of the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
218 for patents for a holder including a common means to
actuate plural jaws, and see notes thereunder.
Subclass:
35
This subclass is indented under subclass 20. Device
including means preventing rotation of either the piston or
the cylinder, or both, of a pneumatic or hydraulic pressure
means; or a means restricting, to a desired path, the
movement of one or more parts of a fluid-operated holder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
256 for patents to a holder including structure for
maintaining opposed jaws in parallel planes.
Subclass:
36
This subclass is indented under the class definition. Device
for supporting one or more rails of a fence relative to
another rail on which said device is supported.
(1) Note. Included here are patents to a device for holding
and gauging wire fence strands or metal slats.
(2) Note. Most patents found in this subclass are classified
here as originals on a disclosure basis and cross-reference
below on a structural basis.
(3) Note. Patents to a device for holding plural elements,
disclosed as fence components, in desired relative position
are not proper for this subclass unless such device is
supported by a fence rail. See subclasses 37+ for plural
holders to hold workpieces relative to each other.
Subclass:
37
This subclass is indented under the class definition. Device
including at least two separate holding means each of which
separately immobilizes at least one workpiece with respect to
another workpiece separately held by another such holding
means.
(1) Note. The holding elements are separate to the extent
that at least two workpieces can be maintained in position
without requiring either the presence of other workpieces or
the presence of the other of said two workpieces.
(2) Note. A patent claiming the use of a single pair of
jaws, the work engaging faces of which are configured to
enable the simultaneous grasping of separate workpieces, to
hold plural workpieces relative to each other will not be
placed in this subclasses (37+). Such jaws do not constitute
"separate holding means" as defined above and placement will
be in the appropriate subclass lower in the class schedule.
(3) Note. A patent claiming the use of plural work
contacting elements to hold workpieces relative to each other
but which elements are actuated* in gangs so as to constitute
a single work holding couple or pair (at least one jaw of
such couple thus including several spaced and relative
positionable portions as in subclasses 164, 265+ and 266)
will not be placed in this subclass (37). Such jaws do not
constitute "separate holding means" as defined above and
placement will be in the appropriate subclass lower in the
schedule.
(4) Note. A patent claiming the use of plural clamping means
structurally capable of meeting the above criteria but
disclosed as holding work with respect to a reference table,
wall or floor, rather than with respect to another workpiece,
is not placed here and will be found in subclasses 95+
below.
(5) Note. A device with two or more separate work holders
which device includes mechanism for moving one holder, and
the work held, relative to another holder, and the work held
thereby, is not considered to be a work holder for this class
(269); such device is an assembly mechanism for Class 29,
Metal Working subclasses 700+. Articulation between holders
and/or means whereby an operator may shift said holders,
without mechanical advantage or lost motion, does not
constitute "mechanism" for assembly. However, the provision
of a work contacting guide to align or orient two or more
workpieces, while an operator shifts the holders of said
pieces, is considered to be sufficient "mechanism" for
assembly.
(6) Note. Included, in this and indented subclasses, are
patents to a device wherein the individual or separate
holders consist of static structure insofar as the work
contacting portion of the holder is concerned, e.g., a socket
or groove into which a workpiece is inserted. However, plural
grooves or sockets in a single bar or plate do not constitute
"plural holders".
SEE OR SEARCH THIS CLASS, SUBCLASS:
95 for patents to a holder with means to fasten to support
and see (4) Note above.
104 for patents to a holder with plural jaw pairs, angularly
oriented, engaging common work, which common work may be of
composite or plural element composition.
152 for patents to a holder with plural spaced jaw pairs.
156 for patents to a holder with three mutually coacting
jaws.
164 for patents to a holder with relatively movable jaws
including means to position portions of a jaw lateral to the
general direction of work gripping jaw movement.
257 for patents to details of work engaging surface and
element characteristics.
SEE OR SEARCH CLASS:
29, Metal Working, 700 for patents to plural holders to hold
and move workpieces relative to each other; see (5) Note
above.
65, Glass Manufacturing, subclass 152 for glassworking
apparatus including fusion bonding means having plural work
holders.
294, Handling: Hand and Hoist-Line Implements, 87.1 and 159
for a grapple or article carrier having plural holders for
carrying plural articles.
Subclass:
38
This subclass is indented under subclass 37. Device wherein
the separate holders maintain one or more of the feathers of
an arrow in desired orientation with respect to the shaft of
said arrow while said feathers and said shaft are being
joined.
(1) Note. Patent placement in this art grouping requires
claimed identity of the holders as being for arrow and
feathers.
SEE OR SEARCH CLASS:
29, Metal Working, subclass 2.1, for patents to the process
of fletching an arrow.
473, Games Using Tangible Projectile, 569 for an arrow
having a special feature such as being material dispensing or
of scattershot type, etc., particularly subclasses 578+ for
an arrow.
Subclass:
40
This subclass is indented under subclass 37. Device limited
to plural holders which all support and hold work by means of
static work contacting portions.
(1) Note. See (6) Note under subclass 37.
(2) Note. See (2) Note under subclass 37 with respect to
jaws* which individually have plural static work contacting
portions.
Subclass:
41
This subclass is indented under subclass 37. Device
including two clamp couples with the jaw(s) of one couple
oriented for movement, during actuation*, along a path at
right angles to the jaw(s) of the other couple so as to hold
workpieces perpendicular to each other.
Subclass:
42
This subclass is indented under subclass 41. Device
including means to actuate* the jaws of said couples in
unison.
SEE OR SEARCH THIS CLASS, SUBCLASS:
218 for patents for a holder including a common means to
actuate plural jaws, and see notes thereunder.
Subclass:
43
This subclass is indented under subclass 37. Device
including at least two clamp couples with the jaw(s) of one
couple oriented for movement, during actuation*, along a path
parallel to the jaw(s) of other couples so as to hold
workpieces parallel to each other.
(1) Note. Included here are patents to a device for holding
the two end shooks of a box while a top, bottom and/or side
is fastened thereto.
Subclass:
44
This subclass is indented under subclass 43. Device
including three clamp couples.
(1) Note. Included here are patents to a device for holding
three shooks, such as in an orange or egg crate, while top,
bottom and/or sides are fastened thereto.
Subclass:
45
This subclass is indented under subclass 37. Device
including means whereby an operator may, without mechanical
advantage or lost motion means, change the spatial
relationship of one holder with respect to another.
(1) Note. See (5) Note under subclass 37.
SEE OR SEARCH CLASS:
433, Dentistry, 53 for work holders for similar structure
used in dentistry.
Subclass:
46
This subclass is indented under the class definition. Device
wherein a work holder is supported by being hung from a
member overlying the work holder in at least one position of
adjustment of the holder.
(1) Note. Patents in this subclass include those in which
work holder supporting means is provided in addition to the
supporting means which suspends the holder.
(2) Note. The hanging support is nonrigid, of a hook, strand
or chain-like nature; not a bolt, screw or clamp-like
element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
95 for patents to a holder with means to fasten said holder
to a support.
Subclass:
47
This subclass is indented under the class definition. Device
wherein the work holder has a portion which is adapted to be
positioned within a preformed opening in the work and, when
so positioned, is peripherally encompassed by the work.
(1) Note. The opening need not extend completely through the
work.
(2) Note. A holder for a wound up roll of material is not
considered to meet the definition of this subclass unless the
teaching of the patent is that the work is treated in wound
up roll form; also see the class definition.
(3) Note. For a patent to be placed as an original in this
subclass, the holder portion insertable within the work
aperture, or a holder part receiving such portion, must be
claimed. For example, a patent to a work holder disclosed as
having work bolted thereto by a bolt extending through an
opening in the work and extending through an opening in the
holder will be placed as an original in this subclass only if
the bolt or the bolt receiving opening in the holder is
claimed.
(4) Note. Included in this an indented subclasses are
devices to which a workpiece is secured by embracing a part
of the holder, e.g., using the clamp of an outboard motor to
mount said motor on a holder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
53 for patents for a pin which penetrates work to hold it,
making an aperture as it enters the work.
SEE OR SEARCH CLASS:
294, Handling: Hand and Hoist-Line Implements, subclass 158
for an article carrier having a component adapted to be
positioned in a aperture in the article.
Subclass:
48
This subclass is indented under subclass 47. Device wherein
the work holder includes a tool couple element*.
SEE OR SEARCH THIS CLASS, SUBCLASS:
87 288 and 290, for patents for other work holders having
tool couple elements.
Subclass:
48.1
This subclass is indented under subclass 47. Device whose
holder portion includes means to allow its size to be
increased by an amount sufficient to permit engagement
between the holder and the work at such opening.
SEE OR SEARCH CLASS:
279, Chucks or Sockets, 2.01, for an expanding chuck or
socket.
Subclass:
48.2
Plural pin mandrel:
This subclass is indented under subclass 48.1. Device
wherein the portion comprises a plurality of elongated
elements capable of radially expanding from each other.
(1) Note. The portion comprises plural pins which however
could be composed of a folder single piece of wire or rod
structure.
SEE OR SEARCH CLASS:
24, Buckles, Buttons, Clasps, etc., 208 for mating head and
socket fasteners.
29, Metal Working, 271 for hand manipulable tools used to
align or center pipes or similar structures.
Subclass:
48.3
Having intermediate expanding means:
This subclass is indented under subclass 48.2. Device
provided with a separate structure lying between and
physically contacting the elements such that axial movement
of the structure causes radial movement of the elements.
Subclass:
48.4
And coil spring:
This subclass is indented under subclass 48.3. Device
further provided with a helical body tending to return to its
original shape after being distorted.
(1) Note. The coil spring usually acts to axially move and
bias the intermediate expanding means.
Subclass:
49
This subclass is indented under subclass 47. Device wherein
there is provided a work holder portion engaging one surface
of the work, and the work holder portion which is insertable
within the work aperture is so mounted that it may move
toward and away from both the first mentioned work holder
portion and the work, entering the aperture through a work
surface opposite such first named surface.
Subclass:
50
This subclass is indented under subclass 47. Device wherein
the work holder is mounted for movement*.
SEE OR SEARCH THIS CLASS, SUBCLASS:
55 for patents for other work holders mounted for movement.
Subclass:
51
This subclass is indented under subclass 50. Device wherein
(A) the movement of the work holder has as components thereof
simple movements* as, for example, a combined rectilinear and
rotational movement, or (B) the work holder sequentially
partakes of a plurality of simple movements, as, for example,
two rectilinear movements in two different paths.
Subclass:
52
This subclass is indented under subclass 47. Device wherein
the outer periphery of the portion of the work which engages
the holder is substantially circular in cross-section and the
center of the aperture in which the holder is inserted is
disclosed as coinciding with the center of mass of such
circular work portion.
Subclass:
53
This subclass is indented under the class definition. Device
wherein the work holder comprises an elongated pointed
element that penetrates the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
47 for patents for a work holder having a portion entering a
preformed opening in the work.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, 419 for a cooking spit
or impaling means and subclasses 557+, 559+, and 594+ for a
device that impales a food item to remove a pit or to hold it
while the skin is removed.
452, Butchering, subclass 196 for patents to a fish clamp
including impaling means.
Subclass:
54
This subclass is indented under subclass 53. Device wherein
there is provided, additionally, an element other than a pin
which is positioned above and in contact with at least part
of the upper surface of the work when the work is being
treated.
Subclass:
54.1
This subclass is indented under subclass 53. Device provided
with means for moving the pin, causing the pin to penetrate
the work.
(1) Note. The mere extension of a pivoted-pin supporting
member, forming a simple lever, is not considered to result
in a drive means for purposes of placement in this subclass.
Likewise, means for merely holding a pin in a raised position
and subsequently allowing it to drop under the influence of
gravity does not constitute drive means for this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
20 for pin-type holders including fluid moving means.
Subclass:
54.2
This subclass is indented under subclass 54.1. Device
including a pair of pins mounted for relative movement toward
one another for penetrating the work at spaced points.
(1) Note. The pins need not be physically diametrically
opposed, but must have components of force, respectively,
which are so opposed.
(2) Note. Only one pin need be movable to satisfy the
requirement for relative movement.
Subclass:
54.3
This subclass is indented under subclass 54.2. Device
provided with one or more pins in addition to the coacting
pair.
SEE OR SEARCH THIS CLASS, SUBCLASS:
9 for holders including plural, selectively usable pins.
Subclass:
54.4
This subclass is indented under subclass 53. Device
including a surface which is positioned beneath at least a
part of the work and is situated so as to contact said part
to support the work against gravity.
SEE OR SEARCH THIS CLASS, SUBCLASS:
289 for work underlying supports, per se.
Subclass:
54.5
This subclass is indented under subclass 54.4. Device
provided with at least one elongated, pointed element
situated normally to the work underlying surface.
(1) Note. The pointed element may be part of the surface of
may move relative to said surface.
(2) Note. Any relative movement of the pointed element is
for the purpose of removing the element from the work only.
SEE OR SEARCH THIS CLASS, SUBCLASS:
54.1 for similar devices having means to move the pointed
elements into the work.
Subclass:
55
This subclass is indented under the class definition. Device
including holder supporting structure modified to allow
shifting of the holder from one position to another with
respect to its base or support or from one station to
another.
(1) Note. Included here are patents to a holder with means
providing for adjustment about a a horizontal and/or vertical
axis, as well as about a universal joint.
(2) Note. A patent for a holder movable with respect to a
reference member (table, bench) is in this subclass but if
the holder(s) is movable with respect to a station(s) the
device is considered to be a conveyor type holder and the
patent is in subclass 56.
(3) Note. See Holder Mounter For Movement*
SEE OR SEARCH THIS CLASS, SUBCLASS:
17 for patents to a holder with means for moving said holder
freely along the ground or floor.
95 for patents to a holder that can be selectively secured
to a support.
SEE OR SEARCH CLASS:
248, Supports, subclass 349.1, and appropriate subclasses for
patents to a work holder mount structure, per se, which
support structure is of general utility.
414, Material or Article Handling, 222.01 for apparatus for
charging a load holding or supporting element from a source,
and means for transporting the element to a working,
treating, or inspecting station.
Subclass:
56
This subclass is indented under subclass 55. Device wherein
the work holder is combined with a conveyor means to move
said holder.
(1) Note. A patent disclosing a work holder in combination
with a conveyor but claiming the conveyor, per se, will be
found in the appropriate conveyor class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
17 for patents to a holder with means for moving said holder
freely along the ground or floor.
SEE OR SEARCH CLASS:
100, Presses, 144, for patents to a holder for concurrent
pressing and conveying.
Subclass:
57
This subclass is indented under subclass 56. Device wherein
the conveyor moves the work holder in a circular path.
Subclass:
58
This subclass is indented under subclass 55. Device
including mechanism for moving the holder.
(1) Note. The mechanism is any means providing for
mechanical advantage e.g., screw, gear, cam or fluid means.
Subclass:
59
This subclass is indented under subclass 58. Device
including means to latch and immobilize the mechanism.
SEE OR SEARCH THIS CLASS, SUBCLASS:
74 for patents to a holder with means to immobilize the
holder with respect to its support.
Subclass:
60
This subclass is indented under subclass 58. Device in which
the mechanism for moving the holder includes mating
concentrically threaded elements which elements are
relatively rotatable to cause relative axial movement of said
elements which movement is imparted to said holder.
Subclass:
61
This subclass is indented under subclass 58. Device in which
the mechanism for moving the holder includes relatively
rotatable bodies provided with teeth or frictional
interengaging elements whereby one rotatable body will impact
motion to, or receive motion from, some other body by rolling
contact, which motion directly, or as part of a mechanism
train, effects movement of said holder.
Subclass:
62
This subclass is indented under subclass 58. Device in which
the mechanism for moving the holder includes structure which
turns freely on a fixed pivot to impact pressure or motion to
mechanism to effect movement of said holder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
37 for patents to plural means for holding workpieces
relative to each other.
Subclass:
63
This subclass is indented under subclass 55. Device in which
the supporting structure, which allows shifting of the
holder, includes mechanism for securing the holder against
both forward and rearward shifting while locating the holder
in a structurally predetermined position with respect to
support structure.
(1) Note. A patent to a holder with indicia so an operator
can visually determine where to place the work holder with
respect to the base is not considered to include indexing
means for this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
74 for patents to a holder with means to lock the work
holder with respect to its base or support.
307 for patents to a work-underlying support with a sight
gage.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, 813, for tool or work
turret indexing means, per se.
Subclass:
64
This subclass is indented under subclass 63. Device wherein
the mechanism for securing the holder against shifting
includes plural elements (each element has at least two teeth
or a wrinkled surface) so configured that the interengagement
of a portion of one with a portion of another causes
immobilization of the work holder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
207 for patents to a holder with a detent type lock for
adjustment.
Subclass:
65
This subclass is indented under subclass 63. Device wherein
the mechanism for securing the holder against shifting
includes a screw or bolt means.
Subclass:
66
This subclass is indented under subclass 63. Device wherein
the mechanism for securing the holder against shifting
includes a cam* means.
Subclass:
67
This subclass is indented under subclass 63. Device wherein
the mechanism for securing the holder against shifting
includes an element that is moved laterally of its general
extent to engage a selected notch in another toothed
element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
211 for patents to a holder with pin-rack adjustment means
for a jaw.
Subclass:
68
This subclass is indented under subclass 63. Device wherein
the mechanism for securing the holder against shifting
includes a pivotable element to be engaged with a selected
notch in another toothed element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
212 for patents to a holder with pawl-rack adjustment means
for a jaw.
Subclass:
69
This subclass is indented under subclass 63. Device wherein
the mechanism for securing the holder against shifting
includes a bar, pin or rod which is insertable axially or
longitudinally within a selected aperture or mating opening.
SEE OR SEARCH THIS CLASS, SUBCLASS:
208 for patents to a holder with peg-hole adjustment means
for a jaw.
Subclass:
70
This subclass is indented under subclass 69. Device
including means to urge the bar, pin or rod into the aperture
or mating opening.
Subclass:
71
This subclass is indented under subclass 55. Device
including at least two supporting structures modified to
permit at least two degrees, or types, of shift either (A)
about and along a single axis or (B) about spaced axes.
Subclass:
72
This subclass is indented under subclass 71. Device
including a common means to immobilize shifting in at least
two degrees of shift.
(1) Note. Included here are patents to a holder that also
has separate means to lock shift means other than those
locked by the common means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
59 for patents to a holder with means to immobilize a
mechanism for moving the holder.
Subclass:
73
This subclass is indented under subclass 71. Device in which
there are but two degrees or types of shift.
Subclass:
74
This subclass is indented under subclass 55. Device
including structure to immobilize the holder with respect to
its support structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
59 for patents to a holder with means to immobilize a
mechanism for moving the holder.
63 for patents to a holder with means to secure the holder
against both forward and rearward shifting (e.g., indexing).
Subclass:
75
This subclass is indented under subclass 74. Device wherein
the immobilizing means is for members which can relatively
swivel or turn in plural planes, within defined limits, about
a point.
SEE OR SEARCH THIS CLASS, SUBCLASS:
71 for patents to a work holder which permits at least two
degrees or types of shift.
Subclass:
76
This subclass is indented under subclass 74. Device wherein
the immobilizing structure comprises a threaded element(s)
adjustably mounted on the holder (or the holder support) so
that an end of said element can frictionably engage the
holder support (or the holder).
(1) Note. While the reaction to the force applied by the set
screw may involve considerable surface area contact of a
binding nature between the holder and holder support, the
application of binding force is by means of the set screw.
SEE OR SEARCH THIS CLASS, SUBCLASS:
74 for patents to a holder with position lock means
utilizing a detent or interlocking elements.
Subclass:
77
This subclass is indented under subclass 74. Device wherein
the structure applies an immobilizing force about the surface
of the structure linking the holder and the holder support.
(1) Note. The clamp means must be such so as to embrace and
contact more than a 180 deg. section of the structure being
immobilized.
Subclass:
78
This subclass is indented under subclass 77. Device
including a curved or angular band-like element with spaced
ends and with means to increase or decrease said space so as
to apply internal or external clamping force with said band.
Subclass:
79
This subclass is indented under subclass 74. Device
including a clamp on a link (or links) connecting the holder
with the holder support, said link(s) being articulated to
the holder and/or support so as to limit relative movement.
Subclass:
80
This subclass is indented under subclass 74. Device wherein
the holder and holder support are jointed by a clevis type
joint which joint includes means to compress or force the
U-shaped legs or ears together adjacent a tongue-like element
between said legs.
Subclass:
81
This subclass is indented under subclass 74. Device wherein
the support structure is set forth as a bench, floor, bracket
or frame clearly part of the environment rather than a mount*
or subholder for the work holder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
95 for patents to fasten a holder to a support where the
holder is not mounted for movement.
Subclass:
82
This subclass is indented under subclass 74. Device wherein
the immobilization structure includes a means for drawing
flat abutting surfaces of the holder and holder support into
binding frictional engagement.
(1) Note. This and indented subclasses are limited to
patents for a holder wherein the bearing surfaces, providing
for movement of the holder relative to the holder support,
are both (a) flat and (b) pressable together for relative
immobilization of said surfaces. Any claimed (c) variation
from the flat or (d) immobilization other than by drawing
flat surfaces together is excluded.
SEE OR SEARCH THIS CLASS, SUBCLASS:
76 for patents to a holder mounted for movement with set
screw type position lock.
77 for patents to a holder mounted for movement with
periphery clamp type position lock.
Subclass:
83
This subclass is indented under subclass 82. Device
including an axis normal to the abutting surfaces, around
which axis the holder and holder support can be relatively
positioned.
(1) Note. Included here are patents to a holder mounted for
movement with a single clamp means for immobilizing radial
bearing surfaces, said clamp means acting parallel to and
spaced from the axis.
Subclass:
84
This subclass is indented under subclass 83. Device wherein
the means for drawing the radial surfaces together is part of
or concentric with the axis structure.
Subclass:
85
This subclass is indented under subclass 83. Device
including two or more spaced means for drawing the bearing
surfaces together.
(1) Note. Included here are patents for holders with a
single operative element for applying plural clamps.
Subclass:
86
This subclass is indented under the class definition. Device
including two or more jaws* movable with respect to each
other to engage and hold work.
(1) Note. A patent for a holding device claiming only one
jaw and the means to position (adjust* and/or actuate*) said
jaw relative to a disclosed, but not claimed, coacting jaw
(i.e., a clamp couple element *) will be placed in this and
indented subclasses as though said coacting jaw were
claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
2 for patents to a hand maneuvered or work supported tool
guide with relatively movable jaws.
257 for patents to a holding device with relatively movable
jaws, claiming only jaw features without either means to
adjust* or actuate* said jaws.
SEE OR SEARCH CLASS:
24, Buckles, Buttons, Clasps, etc., appropriate subclasses,
particularly 243, for patents to similar devices disclosed as
holding material for other than treatment of said material.
81, Tools, 300, for patents to tool jaws positioned by
relatively movable plural handles (e.g., pliers) and see
search notes thereunder and subclass 487 for other hand held
tools having article gripping jaws.
100, Presses, appropriate subclasses, particularly 214, for
patents to relatively movable platens which engage and treat
the material engaged, and see search notes thereunder. Also
see section VIII in the class definition of this class.
164, Metal Founding, appropriate subclasses for patents to a
combination of a mold or flask with means to grasp or draw
portions of the mold or flask either together or onto a base
or support. The clamp means, per se, even if the mold or
flask is named as the article held is classified here (Class
269) as a workholder.
Subclass:
87
This subclass is indented under subclass 86. Device
including a tool couple element *.
SEE OR SEARCH THIS CLASS, SUBCLASS:
48 for patents to a holder inserted within work aperture
including a tool couple element.
288 for patents to a holder enclosing work and including a
tool couple element.
290 for patents to a work underlying support with a tool
couple element.
Subclass:
87.1
This subclass is indented under subclass 87. Device
including means to limit or restrict the movement or course
of a tool to a particular path(s).
SEE OR SEARCH CLASS:
33, Geometrical Instruments, 501, for patents to a gauge.
Subclass:
87.2
This subclass is indented under subclass 87.1. Device
including spaced wall portions defining the tool path.
Subclass:
87.3
This subclass is indented under subclass 87.1. Device
including an opening or aperture through which a tool is
applied to the work.
Subclass:
88
This subclass is indented under subclass 86. Device
including means, which by arrangement, addition, removal or
reassembly of one or more of its elements, causes or permits
the device to serve or function, alternately, as one or the
other of at least two of the different types of holding
devices separately provided for under subclass 86.
(1) Note. The fact that a device may be used in several
varying ways to hold work will not effect classification in
this subclass unless such variation in mode of operation
requires a rearrangement, addition, removal or reassembly of
component elements.
(2) Note. The use of selective jaw attachments or inserts is
not considered to constitute a variation as to type of
holding device as required by the above definition.
(3) Note. A holder is considered to be a particular "type"
when the claimed means provide for (a) distinctive
adjustment* or actuating* mechanism as indicated by the
subclasses 165+ and 216+ (b) specific number, relative
coaction and/or alignment of jaws as indicated by subclasses
104 through 156.
(4) Note. Devices convertible from a work holder to a
treating or force applying mechanism are excluded from this
class (269) and are classified on the basis of the
appropriate treating or force applying mechanism.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4 for patents to a holding device convertible from operative
to bench supported.
271 for patents to a holder with jaw attachments and/or
inserts.
Subclass:
89
This subclass is indented under subclass 86. Device
including means responsive to jaw actuation* for immobilizing
the jaw couple relative to the holder support *.
(1) Note. The structure is incapable of grasping work prior
to immobilization and thus is not considered to be a holder
mounted for movement *.
SEE OR SEARCH THIS CLASS, SUBCLASS:
55 for patents to a holder mounted for movement.
216 for patents to a holder actuating means.
Subclass:
90
This subclass is indented under subclass 86. Device
including structure other than, and in addition to, the
actuating mechanism for maintaining the work gripping
position of the jaw(s)* subsequent to application of said
actuating mechanism.
Subclass:
91
This subclass is indented under subclass 86. Device
including means to removably secure a clamp couple element *
to a supporting structure which structure serves as a
coacting jaw.
(1) Note. The clamp couple element itself, not in secured
position, is incapable of holding work.
(2) Note. Included here are patents to a "hold down" used on
a machine tool work table as well as a "planking clamp" used
for applying a sheathing, floor or wall board.
(3) Note. In the figure below shank 4 of a clamp couple
element is maintained in position with respect to support 5
by being canted in opening 3. Actuation of cam 2 then serves
to grip work between jaw 1 and support 5. [figure]
Subclass:
92
This subclass is indented under subclass 91. Device
including two or more actuating* means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
221 for patents to a holder with plural means to actuate one
jaw.
Subclass:
93
This subclass is indented under subclass 91. Device
including means wherein jaw actuating mechanism serves to
immobilize the element with respect to a coacting jaw.
SEE OR SEARCH THIS CLASS, SUBCLASS:
89 for patents to a holder with immobilizing means
responsive to jaw actuating means.
Subclass:
94
This subclass is indented under subclass 91. Device wherein
the clamp couple element is moved arcuately by actuating
means to grip work.
(1) Note. Included here are patents to a device with very
slight rocking motion where such rocking is in fact effected
by operation of the actuating means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237 for patents to a holder with relatively pivoted jaws.
Subclass:
95
This subclass is indented under subclass 86. Device
including structure for fixing or making fast the position of
an entire holder with respect to a disclosed reference table,
stand, bracket, wall or floor.
(1) Note. The holder structure must be capable of holding
work in the absence of the reference table or stand to which
said device is fastened.
(2) Note. See HOLDER SUPPORT*, especially form (c).
(3) Note. Included here are patents to a holder claiming
features for a temporary or removable mounting which
facilitate the use of the device as a portable
instrumentality.
(4) Note. While a patent may claim structure capable of
meeting the criteria of subclass 37, i.e., plural clamping
means to hold workpieces relative to each other, such patent
will be placed here (subclasses 95+) if the disclosure is for
holding work with respect to a reference table, wall or
floor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4 for patents to an operator supported holder convertible to
bench supported type.
37 for patents to plural holders to hold work-pieces
relative to each other and see (4) Note above.
81 for patents to a holder mounted for movement * with means
to lock movement with respect to a reference base.
91 for patents to a jaw* with means to fasten said jaw, and
its adjusting* and/or actuating* means, to a coacting jaw or
jaw-like member.
309 for patents to a holder with working-underlying support
mounting means.
SEE OR SEARCH CLASS:
248, Supports, appropriate subclasses, for patents to a work
holder supporting structure, per se.
Subclass:
96
This subclass is indented under subclass 95. Device wherein
the work holder structure, per se, is disclosed and claimed
as either (A) torque means separately classifiable in Class
81, subclasses 54+ or (B) hand pliers separately classifiable
in Class 81, subclasses 300+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4 for patents to a holder convertible to either operative or
bench support.
SEE OR SEARCH CLASS:
81, Tools, 54 and 300+, for wrenches and pliers, per se,
respectively.
Subclass:
97
This subclass is indented under subclass 95. Device wherein
the fastening structure includes relatively movable jaws for
gripping the support.
(1) Note. In the figure below jaws 4 and 5 are disclosed as
intended to be secured to the apron of a table or work bench
while jaws 2 and 3 hold material to be worked on. Notice the
detent 1 for quick adjustment. [figure]
SEE OR SEARCH CLASS:
81, Tools, subclass 487 for a hand tool having clamping jaws
(other than pliers or wrenches).
Subclass:
98
This subclass is indented under subclass 97. Device wherein
a work contacting jaw is integral with a jaw of the support
clamp.
Subclass:
99
This subclass is indented under subclass 95. Device wherein
fastening structure includes an element mounted on the
support (or forming part of the support) in mating
interengagement with a generally complementary element
forming part of the work holder.
Subclass:
100
This subclass is indented under subclass 99. Device wherein
the support includes an opening into which a mating portion
of work holder is inserted for mounting.
(1) Note. A groove, notch or T-slot into which a work holder
portion of a fastener is inserted is not considered to be an
aperture for purposes of this subclass. Such feature, if
claimed, is provided for in subclass 99.
Subclass:
101
This subclass is indented under subclass 95. Device wherein
the work holder is fastened by screw or bolt means.
(1) Note. For inclusion here, a patent must claim either
threaded fastening means or a structural feature with
cooperates with, or enables the use of, such threaded
fastener.
Subclass:
102
This subclass is indented under subclass 95. Device wherein
the work-holder is fastened by a driven support-penetrating
element.
(1) Note. For inclusion here, a patent must claim either a
nail or spur fastener or a structural feature which
cooperates with, or enables the use of, such nail or spur.
Subclass:
103
This subclass is indented under subclass 86. Device for
holding a bight or loop of strand-like material around a
generally U-shaped wear and/or reenforcement member so that
the ends of the bight may be secured together to maintain
said member in said bight.
(1) Note. This subclass represents an art collection of
patents to a cable-splicing device (which patents vary as to
structural details though all meet the criteria set forth in
class and subclass definition above) limited by claim to the
means for holding cable around a thimble.
SEE OR SEARCH CLASS:
57, Textiles: Spinning, Twisting, and Twining, 22, for
patents for splicing devices and see search notes
thereunder.
Subclass:
104
This subclass is indented under subclass 86. Device
including: (A) two or more jaw* couples spatially related so
that a line between, and generally normal to, coacting
gripping surfaces of one jaw couple is not parallel to a
corresponding line of another jaw couple; and (B) each of the
couples contacts either portions of the same workpiece or
plural abutting workpieces.
(1) Note. This subclass does not include patents for holders
with plural coacting jaws unless said jaws are adjusted* or
actuated* in groups of two (i.e., in couples).
(2) Note. In regard to this and indented subclasses from
subclass 105 through subclass 117, no effort has been made to
cross-reference down from these subclasses to the indented
subclasses running from subclass 118 through subclass 125, as
the vast majority of the patents, in the higher group of
subclasses, have at least one or more claims drawn to the
subject matter of one or more of the subclasses positioned in
the lower placed group of subclasses. Therefore, to be
complete, any search involving one or more of subclasses from
118 through 125 should include a search of appropriate
subclasses in the group running from subclass 104 through
subclass 117 inclusive.
(3) Note. A patent claiming subject matter included within
the above definition, and including a disclosure that
provides for only two jaw couples with a single adjustment
means (subclasses 165+) for positioning one couple and a
single actuating* means (subclasses 216+) for positioning the
other couple, will remain in this subclass. If either of the
above jaw couples is disclosed as having plural positioning
means, see the subclasses indented under subclass 109.
(4) Note. See (1) Note under subclass 111.
SEE OR SEARCH THIS CLASS, SUBCLASS:
37 for patents to a holder with plural means to hold
workpieces relative to each other, each of which means can
hold work independently of other means and in the absence of
other workpieces, and see search notes thereunder.
287 for patents to a holder which encloses work.
SEE OR SEARCH CLASS:
81, Tools, subclass 311, for patents to pliers with separate
jaw pairs.
279, Chucks or Sockets, appropriate subclasses, for patents
to plural coacting jaws, and see search notes under the class
definition.
Subclass:
105
This subclass is indented under subclass 104. Device
including at least three jaw* couples, each one of the three
couples being angularly related to each of the other two
couples; and, no more than two of the three couples acting in
a common plane.
(1) Note. One jaw couple may grip and fix the work to oppose
an angularly related jaw that would move the work, rather
than grip the work, in the absence of the first mentioned
couple.
SEE OR SEARCH THIS CLASS, SUBCLASS:
37 and 152+, where three couples do not engage the same
work, and see notes thereunder.
Subclass:
106
This subclass is indented under subclass 105. Device
including at least one actuating* means for each of the three
couples.
Subclass:
107
This subclass is indented under subclass 104. Device wherein
the mechanism for relatively moving the jaws of any one set
is operatively linked to the moving mechanism of at least one
other angularly oriented set.
SEE OR SEARCH THIS CLASS, SUBCLASS:
218 for patents to a holder with common means to actuate
opposed jaws; and, see notes thereunder.
Subclass:
108
This subclass is indented under subclass 107. Device
utilizing a cable, strand, strap, or articulated link member
encircling all the jaws so as to move said jaws relative to
each other as the effective length of the encircling member
is shortened.
SEE OR SEARCH THIS CLASS, SUBCLASS:
130 for patents to a holder wherein a cable, strand or
articulated link member is adjusted to engage work by
shortening the effective length of said member.
Subclass:
109
This subclass is indented under subclass 107. Device
including at least four jaws, each jaw including
work-contacting portions that are angularly related; and,
when actuated*, the four jaws move in unison, or
substantially so, toward or away from the work.
(1) Note. See "JAW"* (B).
(2) Note. See the sketch accompanying the definition of
subclass 112 for an illustration of possible lines of
movement for one of said jaws.
Subclass:
110
This subclass is indented under subclass 104. Device wherein
at least one actuated* jaw* includes structure which supports
and allows relative movement of a second actuated jaw.
SEE OR SEARCH THIS CLASS, SUBCLASS:
95 and notes thereunder.
134 for patents to a holder including a "hold down"
component of force on a jaw.
152 for patents to a holder with plural jaw pairs.
Subclass:
111
This subclass is indented under subclass 104. Device
including four side portions arranged to enclose an area,
said side portions may or may not be interconnected, the
opposed pairs of side portions including the jaw couples.
(1) Note. This subclass requires: (a) that the positioning
means for at least one of the jaw couples includes either:
(i) two or more disclosed adjustment* means (e.g., subclasses
141 and 165+), or (ii) two or more disclosed actuating* means
(e.g., subclasses 142+ and 216+), or (iii) a combination of
at least one adjusting means and at least one actuating means
(e.g., subclasses 146 and 188+); and, (b) that the
positioning means for the other jaw couple includes: (i)
adjustment means, or (ii) actuating means. Therefore, this
subclass does not include a device wherein a single adjusting
means or a single actuating means is used to position one jaw
of one couple, plus a single adjusting means or a single
actuating means used to position one jaw of the other couple
("single", as here used, excludes one jaw couple positioned
by a combination of adjustment and actuation means, as in
subclasses 146 and 188+, as well as excluding plural
adjustors or plural actuators, for one jaw couple, as in
subclasses 141 and 221+); and, patents disclosing only such
"single" means, for each of the two jaw couples, will remain
in subclass 104. See (4) Note under subclass 104.
(2) Note. The four sides of the frame may be in the same
plane or they may be in closely adjacent parallel planes.
(3) Note. Each one of the four sides may (a) constitute a
jaw, (b) support a movable jaw, (c) support jaw moving means,
or (d) comprise any combination of (a), (b) and/or (c).
(4) Note. A "corner", as used in the definitions of the
indented subclasses, may be formed by two abutting,
articulated, intersecting, or overlapping lateral parts, or
it may be merely the point where imaginary extension of two
lateral parts would intersect.
(5) Note. The force applied to portions of the frame may be
exerted from a point on or outside the periphery of the frame
toward an inner portion of the frame, or from some point
within the frame toward the periphery of the frame.
(6) Note. See "JAW"*. If one corner-angled jaw having
nonparallel faces has such faces articulated, or otherwise
movable inter se, and each such face has an opposed coacting
jaw that is movable relative thereto, then such jaw couples
are appropriate for this and indented subclasses such as
subclasses 112+ and 124+. However, if there are two generally
opposed, corner-angled jaws and each one has a respective
pair of nonparallel faces that are fixed inter se, then such
an opposed pair of fixed-angle corner-angled jaws are
considered to be a single opposed pair of configured jaws,
and such structures should be searched elsewhere, e.g.,
subclasses 126+, 140+, 218+, 265+, etc.
(7) Note. See the accompanying sketches which show that the
lateral parts of the frame may vary from (a) merely the
pointed ends of screw means to (b) overlapping sides.
[figure]
(8) Note. In addition to variations noted in the Notes
numbered (3), (4) and (7), immediately above, the individual
sides, jaws, or screws, may be pivotally mounted, slidable,
or otherwise movable with respect to each other or an
underlying supporting structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
37 for patents to plural holders, and see the notes
thereunder.
47 for patents to a holder insertable within a work
aperture.
55 for patents to a movable holder which may include a
quadrilateral frame type holder to grip the work while the
holder is moved.
311 for patents to a work underlying support including means
to hold plural supporting blocks.
Subclass:
112
This subclass is indented under subclass 111. Device
including at least one actuating* means that is positioned
adjacent one corner; and, (1) said means is not
perpendicularly related to either of the two sides that meet
at said corner, and (2) a line, formed by tracing a point on
the actuated jaw as it moves toward the work, falls within
the angle formed either (a) by the corner or (b) by imaginary
lines forming extensions of the two sides intersecting at
said corner.
(1) Note. Most of the patents placed in this subclass
disclose actuating means that move the jaw on a path that is
generally aligned with or closely parallel to either (a) a
diagonal of the frame or (b) the bisector of a corner.
(2) Note. Patents placed in this subclass include frames
wherein the frame, at one corner, is positioned to be
coincident with one quadrant, and adjacent said corner, the
actuated jaw(s) moves either; (a) within the confines of the
frame quadrant, (b) within the confines of the opposed
quadrant, or (c) both (a) and (b) type movement.
(3) Note. See (6) Note under subclass 111.
(4) Note. In the figure below, the portion shown in section
represents the work, and the lines J1 through J6 represent
the movement of a point on an actuated jaw(s) toward a
gripping position. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
115 for patents to a holder including an actuating means
located adjacent at least one frame corner, and see the notes
thereunder.
Subclass:
113
This subclass is indented under subclass 111. Device
including at least two actuating means operating at spaced
points located intermediately of the ends of one lateral part
of the frame.
(1) Note. The plural actuators may be interrelated to
operate simultaneously, or they may be advanced and/or
retracted individually.
(2) Note. At least one of the actuators is positioned at, or
near, the center of the side.
(3) Note. See (3) Note under subclass 111.
SEE OR SEARCH THIS CLASS, SUBCLASS:
112 and 115+, for actuators located at the corners of the
frame, and see the notes thereunder.
139 for means to align coacting jaw faces, and see the notes
thereunder.
Subclass:
114
This subclass is indented under subclass 113. Device wherein
at least two sets of actuating means are operating at spaced
points upon each of at least two sides.
SEE OR SEARCH THIS CLASS, SUBCLASS:
118 for patents including at least two single actuators that
are perpendicularly related.
Subclass:
115
This subclass is indented under subclass 111. Device wherein
an actuating means is located near, or at, the juncture of
two lateral frame parts and said means is so oriented that a
line, formed by tracing a point on the actuated jaw as it
moves toward the work, is (A) perpendicular to one of the two
parts forming a corner, or (B) the line falls outside the
frame and outside the angle, opposite said corner, formed by
imaginary extensions of said two sides.
(1) Note. Patents placed in this subclass include a frame
wherein the frame, at one corner, is positioned to be
coincident with one quadrant, and, at said corner, the
relatively movable jaws* are positioned within the confines
of the two adjacent quadrants.
(2) Note. See (3) Note under subclass 111.
(3) Note. In the figure below, the portion in section
represents the work, and the lines J1 through J6 represent
the movement of a point on an actuated jaw(s) toward a
gripping position. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
112 for relatively movable jaws positioned in quadrant
opposed to the frame quadrant, and see the notes thereunder.
Subclass:
116
This subclass is indented under subclass 115. Device
including actuating means positioned at, or near, at least
two opposite, remotely positioned, corners.
Subclass:
117
This subclass is indented under subclass 116. Device
including at least one actuating means for each of the four
corners.
Subclass:
118
This subclass is indented under subclass 111. Device wherein
each couple of at least two jaw couples has actuating means
operating adjacent side, and lines normal to the gripping
surfaces of each of said two couples are at right angles to
each other.
(1) Note. See (4) Note under the definition of subclass
104.
SEE OR SEARCH THIS CLASS, SUBCLASS:
107 for patents to a holder where such actuating means are
interrelated.
Subclass:
119
This subclass is indented under subclass 118. Device
including at least one actuating means operating upon each of
the four sides of the frame.
(1) Note. See (4) Note under subclass 104.
(2) Note. See illustration under (7) Note of subclass 111.
SEE OR SEARCH THIS CLASS, SUBCLASS:
142 for patents to a holder with separate means to actuate
each of a jaw pair.
218 for patents to a holder with common actuating means for
each of coacting jaws.
Subclass:
120
This subclass is indented under subclass 111. Device wherein
(A) at least one of the angularly related jaw couples is
operated to grip the work solely by adjustment* means, and
(B) a second jaw couple is operated by means including
actuating means.
(1) Note. See (3) Note under subclass 104.
(2) Note. See (1) Note under subclass 111.
Subclass:
121
This subclass is indented under subclass 111. Device
including plural adjustment means that operate either (A) at
plural spaced points intermediate the ends of one lateral
frame part, or (B) at a point remotely positioned with
respect to the ends of each of at least two lateral frame
parts.
(1) Note. See (3) Note under subclass 104.
(2) Note. See (1) Note under subclass 111.
SEE OR SEARCH THIS CLASS, SUBCLASS:
124 for patents to a holder including adjustment means at
plural corners, and see the search notes thereunder.
Subclass:
122
This subclass is indented under subclass 111. Device
provided with adjusting means and including sloped or
inclined block means which are secured to the frame, or
portions thereof, by some means to prevent (except by
destruction) the complete separation, or loss, of said block
means.
(1) Note. See (4) Note under subclass 104.
(2) Note. See "CAM"* for concept of wedge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
124 for patents to a holder with wedge adjustment means.
Subclass:
123
This subclass is indented under subclass 122. Device
including chains, or similarly linked elements, for attaching
the sloped or inclined block means to a portion of the
frame.
(1) Note. See (4) Note under subclass 104.
Subclass:
124
This subclass is indented under subclass 111. Device
including adjustment means located at each of the two
junctures formed by (a) one pair of lateral frame parts, and
(b) the opposite pair of lateral frame parts that are remote
with respect to the first mentioned juncture.
(1) Note. See (4) Note under subclass 104.
(2) Note. See (4) Note under subclass 111.
(3) Note. See the sketches accompanying the definitions of
subclasses 112 and 115 for illustrations of the manner in
which the jaws may move toward the corner of either the
workpiece or the frame sides.
SEE OR SEARCH THIS CLASS, SUBCLASS:
122 for patents to a holder with attached wedge adjustment
means.
Subclass:
125
This subclass is indented under subclass 124. Device
including adjustment means at each of the four corners.
(1) Note. See (4) Note under subclass 104.
Subclass:
126
This subclass is indented under subclass 86. Device wherein
at least one jaw is supported by a generally U-shaped member
one leg of which member is hinged at its extremity to another
jaw supporting structure which second structure bridges the
ends of the U-shaped member and is latched to the extremity
of the other leg so as to substantially embrace work between
the legs of said member and said second structure.
(1) Note. Either, or both, generally U-shaped member and the
other jaw supporting structure may carry jaw actuating or jaw
adjusting means.
(2) Note. The other jaw may, for example, be no more than a
hinged cross-head extending from one leg end to the other.
(3) Note. In the illustration below yoke 4, pivoted at 3 and
latched at 1, carries an actuating screw 2 to grip work
between jaws 5 and 6. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
130 for patents for holders wherein a yoke-like member, one
portion of which comprises a jaw, is constricted to move said
jaw relative to another jaw.
SEE OR SEARCH CLASS:
81, Tools, 98, for patents for pivoted outer jaw wrenches.
Subclass:
127
This subclass is indented under subclass 126. Device
including structural details of the securing means utilized
to fasten the other leg of the U-shaped member to the
bridging structure.
(1) Note. Patent placement in this and indented subclasses
requires claimed recitation of the latch structure. Mere
nominal recital (e.g., "latch" or "fastener) requires
original placement of the patent on the basis of other
claimed characteristics.
SEE OR SEARCH CLASS:
292, Closure Fasteners, appropriate subclasses (and see the
notes thereunder), for patents to specific details of latch
means, per se.
Subclass:
128
This subclass is indented under subclass 127. Device wherein
the securing means is combined with jaw actuating* means.
(1) Note. In the illustration below the actuating screw 2 is
combined with the latch means 1 to effect gripping of work by
jaws 5 and 6. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
188 for patents to a holder with actuating means which means
also effect an adjustment lock*.
Subclass:
129
This subclass is indented under subclass 126. Device wherein
the one jaw* supported by the U-shaped member is moved
relative to another jaw by means carried on the midportion or
bight of said member.
(1) Note. See Figure under subclass 126.
Subclass:
130
This subclass is indented under subclass 86. Device wherein
(A) one jaw* consists of a portion(s) of a supple length of
elongated or attenuated material the effective length being
varied to move said length relative to another jaw or (B) a
supple length of elongated or attenuated material embracing
work is effectively shortened in length to grip and
immobilize said work.
(1) Note. Examples of elongated materials are: rope, cable,
chain, articulated links, straps, webs and belts.
(2) Note. Specific configuration, or modification of surface
characteristics, of the attenuated material for the purpose
of improved work contact is considered to be a jaw feature
and is provided for, per se, in subclasses 257+.
(3) Note. The recital of a plurality of work-engaging
articulated links, meeting the above definition, will not
constitute the constrictable loop as other than a single jaw
for this subclass, even though they are disclosed as engaging
the work simultaneously.
SEE OR SEARCH THIS CLASS, SUBCLASS:
126 for patents to a holder including a pivoted yoke frame
carrying a supple or flexible jaw supporting member, which
member is of fixed length during relative jaw movement.
SEE OR SEARCH CLASS:
81, Tools, 64, for patents for a flexible jaw wrench.
Subclass:
131
This subclass is indented under subclass 130. Device wherein
the constrictable loop is of limber and flexible material.
(1) Note. Included here, for example, are patents to a
holder wherein the loop is of wire, rope, metal band, cable,
etc.
SEE OR SEARCH CLASS:
294, Handling: Hand and Hoist-Line Implements, subclass 149
for a hand-held article carrier which employs a flaccid loop
to retain the article.
Subclass:
132
This subclass is indented under subclass 130. Device
including mechanism to move a jaw other than the
constrictable loop.
(1) Note. Generally, the loop is adjusted*, by constriction,
to desired proximate size and the coacting jaw is then
actuated* to grip work between the loop bight and said jaw.
Subclass:
133
This subclass is indented under subclass 86. Device
including at least two coacting jaws* and their supports with
a work underlying portion(s) that (A) is attached to or
integral with either a jaw(s) or a jaw supporting
structure(s), and (B) is so interconnected with one or more
jaws that the force of gravity on the workpiece, upon contact
with the underlying portion(s), actuates* the coacting jaws.
(1) Note. The most common panel or workpiece present, in the
patent disclosures placed in this subclass, is a door or
window supported during planing, weatherstripping, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
13 for patents to a holder including a separate means (i.e.,
other than merely manually lifting the panel against the
force or gravity) to facilitate the removal of work.
157 for patents to a holder including claimed means to urge
jaws away from the work.
217 for patents to a holder including means to resist
further movement of the work once it is gripped.
218 for patents to a holder including a single means to
actuate coacting jaws.
237 for patents to a holder with pivoted jaws.
310 for patents to a holder including supporting structure
that is resiliently urged upwardly.
Subclass:
134
This subclass is indented under subclass 86. Device
including means to effect an additional clamping or holding
action on work with respect to an underlying work supporting
member(s) which additional clamping action is derived from
jaw actuating* means or jaw movement, generally parallel to
the supporting surface of said member.
(1) Note. Inherent in all rockable or pivotal jaw holding
devices, depending on the relative angular position of the
parts, is a similar force-component urging work transversely
of the pivot or axis. However, unless the device includes (a)
specific work underlying support means and (b) the jaw
actuating means (or jaw movement) is generally parallel to
said surface, patents to such device will not be placed here
(subclass 134) but elsewhere in the schedule on the basis of
other appropriate features.
Subclass:
135
This subclass is indented under subclass 134. Device
including a pivotal or arcuately movable body engaging the
material to be held.
(1) Note. Generally, the line of force applied to the
element is such as to cause the body to shift both toward the
work and toward a work underlying support surface.
Subclass:
136
This subclass is indented under subclass 134. Device wherein
the work contacting body is in the nature of an insert or
attachment to a jaw* which jaw itself is constrained to
movement generally parallel to the supporting surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271 for patents to a holder attachment and/or insert.
Subclass:
137
This subclass is indented under subclass 134. Device wherein
the jaw and/or actuating means are specifically set forth as
moving in a path slightly sloped with respect to the plane of
the work underlying support surface.
(1) Note. The phrase "slightly sloped" is intended to cover
included angles up to, but not exceeding 45o.
Subclass:
138
This subclass is indented under subclass 134. Device
including an inclined or sloped element, or cam* means, to
effect the additional clamping or holding action.
Subclass:
139
This subclass is indented under subclass 86. Device
including additional means for moving a jaw* so as to vary
the disposition (i.e., orientation) of the work engaging
surface of said jaw with respect to the work engaging surface
of an opposed jaw.
(1) Note. The movement effected by the additional means is
other than such movement as will engage and grip work. A
patent to a holder with additional means to pivot one jaw
with respect to another, which pivotal movement is effective
to engage and grip work, is therefore not to be placed in
this subclass even though the relative orientation of
coacting jaw faces is changed. Generally, the pivot of the
jaw is external of the jaw body when the pivotal movement is
part of the jaw actuation, and the pivot is internal of the
jaw body when the pivotal movement is merely for jaw
alignment.
(2) Note. Patent placement here requires that the holder
include positive means to change the jaw orientation. Mere
pivot, swivel, slide or articulation means for a jaw or jaw
portions is not considered such a positive means. See
illustration under subclass 258.
(3) Note. Generally, the change in orientation involves
either (a) variation in angularity of the work engaging
surface with respect to line of relative gripping movement or
(b) shift of the work engaging surface normal or lateral to
the line of relative gripping movement or (c) both variation
in angularity and lateral shift.
SEE OR SEARCH THIS CLASS, SUBCLASS:
164 for patents to a holder with means to adjust portions of
the same jaw with respect to each other laterally of the line
of relative gripping movement.
237 for patents to a holder with relatively pivoted jaws.
258 for patents to a holder characterized by adjustable jaw
features.
SEE OR SEARCH CLASS:
81, Tools, subclass 421, for patents to pliers with
articulated jaws.
Subclass:
140
This subclass is indented under subclass 86. Device
including a means for adjusting* and/or actuating* one jaw*
plus a different means for adjusting and/or actuating a
coacting jaw.
(1) Note. A device which includes a common driving element,
anywhere in a train of mechanisms used to position both jaws,
is not considered to have separate means in the sense of the
above definition. Such a means is considered to constitute a
single positioning means.
(2) Note. The adjustment and/or actuation of the coacting
jaws must be with respect to some common supporting
structure, as well as with respect to each other, for
inclusion in this and indented subclasses.
(3) Note. This subclass does not include devices having
three work gripping elements mutually movable to hold work,
for which see subclass 156.
(4) Note. In the figure below the pins on bar 3 provide for
adjustment of one jaw and the screw 2 provides for actuation
of the other jaw. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
165 for patents to a holder with the specific adjustment
means.
216 for patents to a holder with specific actuating means.
218 for patents to a holder with common means to
simultaneously actuate plural jaws.
Subclass:
141
This subclass is indented under subclass 140. Device wherein
the different means for positioning are adjustment means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
165 for patents to a holder including adjustment means.
Subclass:
142
This subclass is indented under subclass 140. Device
including a different actuating means for each jaw of a
coacting jaw couple.
SEE OR SEARCH THIS CLASS, SUBCLASS:
119 for patents to a quadrilateral frame type holder with at
least one actuating means upon each of the four sides of the
frame.
Subclass:
143
This subclass is indented under subclass 142. Device wherein
the coacting jaws are mounted on, or adjacent to, the ends of
an arched, curved or channel shaped member, which member
constitutes the common supporting structure relative to which
both coacting jaws are actuated and which member is not
secured to a base or mount.
(1) Note. Included here are patents to a portable C-clamp
type holder with diverse actuator means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
147 for patents to straight beam type holder including
separate positioning means for each of coacting jaws.
249 for patents to a C-clamp type holder including a
screw-nut type actuator.
Subclass:
145
This subclass is indented under subclass 142. Device wherein
the different actuating means are of the same type.
(1) Note. See (1) Note under subclass 143. Actuating means
provided for in the same subclass (on the basis of said
actuating means) will be considered as being of the same type
e.g., all forms of toggle actuators are the "same" type.
Subclass:
146
This subclass is indented under subclass 140. Device wherein
one of a pair of coacting jaws is provided with means to
adjust and actuate said jaw.
(1) Note. Such means may be a single unitary mechanism or
two separate structural entities.
(2) Note. In the figure below screw 3 provides for actuation
of a jaw with respect to element 4, while the element and the
jaw can both be adjusted (by cant means) with respect to jaw
1 along bar 2. [figure]
Subclass:
147
This subclass is indented under subclass 140. Device wherein
the coacting jaws are mounted on a rectilinear shank (rod,
rail or bar) which shank constitutes the common supporting
structure relative to which coating jaws are positioned and
which shank is not secured to a base or mount.
(1) Note. Patents to a holder including a beam with a
lateral projection fixed thereto, through which projection an
actuating means moves a jaw parallel to the extent of the
beam, are considered akin to a straight beam type for this
and indented subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
143 for patents to a C-clamp type holder including separate
means to actuate each of a jaw pair.
Subclass:
148
This subclass is indented under subclass 147. Device
including at least two shank members in spaced,
nonconverging, relationship.
SEE OR SEARCH THIS CLASS, SUBCLASS:
270 for patents to a holder with paralleling structure for
jaws.
Subclass:
149
This subclass is indented under subclass 147. Device
including shank structure whereby said shank may be varied in
length.
(1) Note. The variation in length may, for example, be
accomplished by telescoping of shank portions, insertion or
substitution of shank portions, etc.
(2) Note. Included in this subclass are patents for a holder
with the variant referred to in (1) Note of subclass 147.
Subclass:
150
This subclass is indented under subclass 140. Device
including an arcuately movable jaw and means to rock said jaw
about a fulcrum to grip work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237 for patents to a holder including a pivoted jaw.
Subclass:
151
This subclass is indented under subclass 86. Device
including means to selectively vary, or determine, the area
of application of actuating* effort to one or both of
relatively movable jaws.
Subclass:
152
This subclass is indented under subclass 86. Device
including two or more jaw* couples.
(1) Note. Patent placement here requires that the claimed
holder jaws coact in pairs, that is, each jaw is movable
relative to another particular jaw, whether or not each pair
engages the same workpiece.
(2) Note. Two or more work contacting elements, each of
which is separately movable, (i.e., adjusted* and/or
actuated*), which coact with a single member to grip a
workpiece(s), are considered to be plural jaws and are
specifically set out in subclass 154 below.
(3) Note. This subclass is residual, in the workholder art,
for patents claiming plural jaw pairs, which jaw pairs are
not encompassed by the definitions of superior subclasses in
the class schedule.
SEE OR SEARCH THIS CLASS, SUBCLASS:
37 for patents to plural means for holding workpieces
relative to each other, and search notes thereunder.
SEE OR SEARCH CLASS:
81, Tools, 300, for patents to tool jaws positioned by
relatively movable plural handles, e.g., pliers.
Subclass:
153
This subclass is indented under subclass 152. Device
including a single mechanism for the jaw actuation* of two or
more of the jaw couples.
SEE OR SEARCH THIS CLASS, SUBCLASS:
218 for patents to a holder including a common means to
actuate plural jaws, and, see notes thereunder.
Subclass:
154
This subclass is indented under subclass 152. Device
including two or more separately movable jaws coacting with a
single common, flat, member to hold work.
(1) Note. Included here are patents to a holder for single
or plural workpieces.
(2) Note. See JAW*, paragraphs (C) and (D).
SEE OR SEARCH THIS CLASS, SUBCLASS:
37 for patents to a holder with plural jaws which hold
plural workpieces relative to each other and see search notes
thereunder for loci of patents to devices with plural jaws.
Subclass:
155
This subclass is indented under subclass 152. Device wherein
the jaws of one couple move relatively in a plane spaced from
and nonparallel to the relatively movable jaws of another
couple.
Subclass:
156
This subclass is indented under subclass 86. Device
including three work gripping elements, each movable in
substantially the same plane and mutually adjustable* and/or
actuable*, to hold the same workpiece or workpieces.
(1) Note. While the elements do not move in couples they do
coact and are therefore considered jaws*.
(2) Note. See subclass 289 (2) Note and JAW* (B) with
reference to a disclosed, but unclaimed,
work-underlying-support element constituting one of the three
work gripping elements. A patent to a holder with a jaw
couple which can hold work without a disclosed, but not
claimed, work-underlying-support is therefore not placed in
this subclass.
(3) Note. See JAW* (C) and (D) for the locus of patents with
respect to plural jaw elements all coacting with a
multi-configured work engaging member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
37 for patents to plural holders for holding workpieces
relative to each other, and see search notes thereunder.
SEE OR SEARCH CLASS:
81, Tools, 303, for patents to pliers with three or more
jaws.
Subclass:
157
This subclass is indented under subclass 86. Device
including resilient or weight means urging one or more jaws*
into nongripping relationship with the work.
(1) Note. Included here are means which rely upon springs,
gravity or resiliency of structural elements. These means
must be claimed for placement of a patent in this subclass,
rather than in other coordinate subclasses below on the basis
of other jaw positioning features.
SEE OR SEARCH THIS CLASS, SUBCLASS:
254 for patents for a holder with bias means to urge jaws
toward work gripping position.
Subclass:
158
This subclass is indented under subclass 157. Device wherein
the means to effect relative jaw movement includes a member
to be moved by the foot of an operative.
(1) Note. A foot switch to initiate motor means for a
holding device is not considered to be a pedal mechanism for
this subclass and a patent to such means will be placed
elsewhere on the basis of other features in the work holding
combination.
(2) Note. See HAND*.
Subclass:
159
This subclass is indented under subclass 158. Device
including means other than and in addition to the means to
actuate* the jaw(s) for maintaining said jaw(s) in a desired
spaced relationship.
SEE OR SEARCH THIS CLASS, SUBCLASS:
165 for patents for a holding device with means to latch or
lock the jaws in desired initial adjusted* position.
Subclass:
160
This subclass is indented under subclass 157. Device wherein
the resilient means consists of an elastic helical element
embracing a threaded cylindrical member forming part of a
screw-nut actuating means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
240 for patents to a holder using a screw-nut actuating
means.
Subclass:
161
This subclass is indented under subclass 157. Device wherein
the resilient means consists of an elastic strip or sheet
positioned intermediate coacting rockable jaws.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237 for patents to a holder including pivoted jaws.
Subclass:
162
This subclass is indented under subclass 157. Device wherein
the resilient means consists of an elastic helical element
embracing or bearing against a cam* or cam follower forming
part of a cam actuating means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
229 for patents to a holder using a cam actuating means.
Subclass:
163
This subclass is indented under subclass 157. Device
including at least two coacting work grippers secured to each
other independently of any actuating* means.
(1) Note. The work grippers are placed between coacting
jaws* so that the actuation of said jaws will cause said work
grippers to grip work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
277 for patents to holder attachments or inserts which are
joined without bias means.
Subclass:
164
This subclass is indented under subclass 86. Device wherein
a work gripping element includes two or more sections with
means to shift said sections, individually or jointly, normal
to the general line of relative gripping action.
(1) Note. Included here are devices which adjust jaw
portions to better grip different work shapes or sizes and
also devices which adjust jaw portions to enable ready access
for working on different parts of the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
139 for patents to a holder with lateral jaw adjustment of
coacting unitary jaws.
Subclass:
165
This subclass is indented under subclass 86. Device
including adjustment* means to initially position a jaw or
jaws.
(1) Note. The adjustment means is often referred to as a
"quick adjust", "quick acting means" or "rapid set means" for
the purpose of fixing an approximate jaw position with
respect to the work to be held, after which a gripping force
is applied to further move the jaw against the work. Such
further movement, where the gripping force is applied by
means not encompassed by the definition of adjustments, need
by merely infinitesimal to be considered actuating*
movement.
(2) Note. The adjustment positioning of (1) Note, above, is
generally a simple sliding, pivoting or changing of a jaw(s)
effected by an operative grasping said jaw, or a portion
thereof or a member attached thereto, and imparting all
spacial repositioning to said jaw by congruent movements of
his hand.
(3) Note. Included in this subclass are patents to a holder
with an insert adjustment-lock* means which means comprises
one or more blocks positionable between structural elements
constituting the means for jaw adjustment so as to relatively
immobilize said elements. A wedge or cam-like insert, without
means to apply force or bias to further seat the wedge (or
rock the cam-like element), used to effect adjustment-lock is
one form of such block.
(4) Note. A patent claiming means which provides for both
adjustment and actuation, and not encompassed by the
definitions of subclasses higher in the class schedule, will
be placed here (subclasses 165+) on the basis of the
adjustment feature and cross-referenced to the appropriate
actuation subclasses (216+).
(5) Note. See HAND*.
SEE OR SEARCH CLASS:
81, Tools, 385, for patents to a plier adjustment means.
Subclass:
166
This subclass is indented under subclass 165. Device
including means to effect an adjustment-lock* which means
comprises at least two relatively movable elements with
antipodal pairs of mutually abutting surfaces, said surfaces
being caused to bind or frictionally engage by relative
tilting or skewing of either (1) one of said elements with
respect to the other or (2) a third element with respect to
both of said relatively movable elements.
(1) Note. Generally, members having a restricted path of
movement with respect to each other because of the mating
configuration of their inter-engaged parts are cant locked in
relative position by moving one member askew to said path of
movement.
(2) Note. The use of one or more pivoted elements to effect
an adjustment-lock by frictionally engaging a member is not
considered to be a "cant lock" mechanism. Such mechanism is a
clamp means for subclass 203. The "cant" means of this and
indented subclasses do not have pivots or axes and are free
for relative tilting or skewing.
(3) Note. In illustration below the opening 3 in jaw member
1 permits free movement along bar 2 when the jaw member is
positioned as shown at B. When canted as shown at A, the jaw
member is immobilized. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
203 for patents to a holder including jaw adjustment
mechanism with frictional immobilization means applied by
other than a relative tilting or skewing of elements.
Subclass:
167
This subclass is indented under subclass 166. Device wherein
two relatively adjustable subassemblies or elements are
locked together by skewing a third discrete binding element.
(1) Note. This third binding element is either (a) fastened
to one of the subassemblies and thus immobilizes said
subassembly as the element binds on the other or (b)
interposed between portions of said subassemblies to act as
an abutment stop when the binding element is manipulated to
friction engage.
(2) Note. The discrete binding element may comprise a
plurality of separate cant members.
(3) Note. In the illustration shown below elements 2 are
canted with respect to bar 1 to lock the position of jaw 3.
(This illustration is from patent No. 2, 815,778 dated
December 10, 1957). [figure]
Subclass:
168
This subclass is indented under subclass 167. Device
including means to tilt two or more such binding elements
which elements also function as part of the jaw actuating*
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
188 for patents to a holder with common means to both lock
and actuate a jaw(s).
Subclass:
169
This subclass is indented under subclass 167. Device
including mechanism, other than bias means or the means
utilized to apply the cant lock, to move the separate binding
element out of askew position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
205 for patents to a holder with additional means to release
a clamp type adjustment-lock.
Subclass:
170
This subclass is indented under subclass 169. Device wherein
the separate cant member is resiliently or gravitationally
urged into askew position.
Subclass:
171
This subclass is indented under subclass 166. Device wherein
at least one such pair of binding surfaces is configured to
provide positive interengagement.
(1) Note. Patent placement here requires both surface
modification and canting to maintain said surfaces together.
(2) Note. The term "configured" includes: "teeth",
"roughened", "racks", "serrations", etc., as integral surface
characteristics, thus "positive interengagement" also
includes any surface modification which enhances frictional
binding.
(3) Note. In the illustration shown below A indicates the
adjustable position of the jaw member 2 while B indicates the
lock position. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
203 for patents for a holder with noncanting friction lock
means using serrated surfaces.
212 for patents for a holder with noncanting lock means
using a pivoted or sliding pawl element which element is not
integral or fixedly secured to one of the surfaces.
Subclass:
171.5
This subclass is indented under subclass 166. Device
including a roughened, serrated, knurled, or similarly
configured portion on at least one portion of one of a pair
of the antipodal abutting surfaces.
(1) Note. In regard to the required tilting or skewing of
the two relatively movable elements of subclass 166, a patent
disclosing the interengagement of a single sharply defined
edge or point on one element with the plane surface of the
second element will remain in subclass 166; thus, for
original placement in this subclass, in regard to any single
pair of relatively canted elements;
(a) there must be an additional configuration (other than an
edge or point) on at least one element; or,
(b) there must be either: (i) at least one inserted element
that has a roughened surface, or (ii) two or more inserted
elements that may have either single edges or roughened
surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
171 for patents including plural abutting surfaces that
interlock.
Subclass:
172
This subclass is indented under subclass 165. Device having
screw-nut type actuating* means one of whose mating threaded
components is movable, parallel to the thread helix axis,
with respect to the other (without recourse to) and without
effecting, the translation and rotation required by
interengagement of said mating.
(1) Note. This, and indented subclasses, are characterized
by the inclusion of patents to a holder with a common type of
actuating means, screw-nut type set forth and defined in
subclasses 240+, which provide a fertile field for
modifications relative to "quick adjust" or "rapid set" jaw
positioning. This subclass and subclasses hereunder are
differentiated on the basis of such modifications pertinent
to adjustment features.
(2) Note. Subsequent to the relative disengaged shift of the
mating components the further movement of said components in
mating position causes the jaws to grippingly hold work.
(3) Note. In the illustration shown below B indicates the
adjustable position of the screw-nut actuating means wherein
the screw element 9 has been turned to permit the insert
element 4 to be disengaged from the nut element 1, thus
permitting relative axial movement without rotation. A
indicates the actuation position of the parts, as the
intermeshing of elements causes relative axial movement when
screw 9 is rotate. (The illustration is from patent No.
2,620,695 dated December 9, 1952). [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
189 for patents to a holder with screw-nut type actuating
means which also locks the jaw adjustment.
240 for patents to a holder with screw-nut type actuating
means, per se.
Subclass:
173
This subclass is indented under subclass 172. Device wherein
the screw-nut type actuating means includes a threaded
cylindrical member (solid or hollow) engaging with two or
more annular segments, bearing mating thread portions, with
means to move a segment(s) into and out of thread
interengagement with the cylindrical member.
(1) Note. The segments are generally moved radially away
from the threaded cylinder to permit relative axial shift of
segments and cylinder.
(2) Note. While the segments may not encompass more than 180
deg. of the threaded cylindrical member, at least two of the
segments are so arranged as to lie in antipodal hemispheres.
(3) Note. In the illustration shown below jaw 3 is tilted so
as to separate the nut-like thread 1 from the screw 2.
[figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
181 for patents to a holder utilizing only one segment, or
plural segments all lying in a common hemisphere.
Subclass:
174
This subclass is indented under subclass 173. Device
including operative manipulated mechanism, other than the
relatively rotatable segments and cylindrical member
themselves, for effecting relative radial movement of plural
segments.
SEE OR SEARCH THIS CLASS, SUBCLASS:
173 for patents to holders with separate means to move only
one of the split segments.
Subclass:
175
This subclass is indented under subclass 174. Device
including a gravity urged member other than the jaw itself to
maintain the segments in a desired position.
Subclass:
176
This subclass is indented under subclass 174. Device wherein
the operative manipulated mechanism effects relative radial
movement of segments coacting with both of a pair of threaded
cylindrical actuating members, said members lie in the plane
of relative jaw movement generally normal to and at different
distances from the work engaging surfaces of the jaws.
SEE OR SEARCH THIS CLASS, SUBCLASS:
219 for patents to a holder with spaced parallel screw
means, either of which means serves as a common actuator for
each of the coacting jaws.
Subclass:
177
This subclass is indented under subclass 174. Device wherein
the operative manipulated mechanism is mounted on the
threaded cylindrical member support means and moves with said
member.
Subclass:
178
This subclass is indented under subclass 173. Device
including means carried by, and responsive to relative
rotational movement of, the threaded cylindrical member for
effecting relative radial movement of the segments.
Subclass:
179
This subclass is indented under subclass 172. Device wherein
the screwnut type actuating means includes a threaded
cylindrical member (hollow or solid) which member is tiltable
about an axis transverse to the extent of said member to
engage or disengage a mating threaded member.
(1) Note. Included here are patents for a device wherein the
tilting is effected by cam* means carried by the tiltable
member.
(2) Note. In the illustration shown below initial rotation
of screw 2 turns cam 3 so as to tilt the screw and free said
screw thread from the nut-like element 1. [figure]
Subclass:
180
This subclass is indented under subclass 179. Device wherein
the tiltable cylinder is moved by manipulation of an
operative without intervention of mechanical advantage, lost
motion, or biasing means.
(1) Note. See HAND*.
Subclass:
181
This subclass is indented under subclass 172. Device wherein
the screw-nut type actuating means includes a threaded
cylindrical member (hollow or solid) engaging a segment
bearing a mating thread portion, with means to move the
segment into and out of thread interengagement with the
cylindrical member.
(1) Note. The segment is generally moved radially away from
the threaded cylinder to permit relative axial shift of
segment and cylinder.
(2) Note. An annular member bearing a segment (less than 180
deg.) of thread, relatively rotated to align nonthreaded
portions, is not considered as an interrupted thread for
subclasses 184+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
173 for patents to a holder utilizing plural annular
segments.
Subclass:
182
This subclass is indented under subclass 181. Device
including operative manipulated mechanism, for effecting
relative radial movement of the segment, which mechanism does
not require the relative rotation between segment and
threaded cylindrical member.
Subclass:
183
This subclass is indented under subclass 182. Device
including a foot operated lever for effecting relative radial
movement of the segment.
Subclass:
184
This subclass is indented under subclass 172. Device
including mutilated portions of one or both of the mating
components, which portions, where properly aligned, permit
relative axial motion without interengagement of the thread
(or helix-like) elements of said mating components.
(1) Note. Generally, a partial rotation of a mating
component serves to align mutilated portion, permitting an
axial shift of said component (and associated jaw); and a
further rotation serves to apply the actuating work gripping
force.
(2) Note. See subclass 181 (2) Note for relationship to
"haft-nut".
Subclass:
185
This subclass is indented under subclass 184. Device
including two separate thread portions facing away,
oppositely, from each other on a cylindrical element.
(1) Note. Usually the mating nut member is under-cut in two
similar portions to permit relative axial motion without
thread interengagement.
Subclass:
186
This subclass is indented under subclass 184. Device
including a single narrow thread portion coacting with a
mutilated screw element which portion is greater in axial
extent than the screw element.
Subclass:
187
This subclass is indented under subclass 184. Device
including an unmutilated externally threaded element.
Subclass:
188
This subclass is indented under subclass 165. Device
including actuating* means, which means, itself or through
its drive train, operating in a manner necessary to effect
actuation also effects an adjustment-lock* of relatively
movable jaws.
(1) Note. Usually, initial operation of the actuating means
locks the adjustment and further operation moves the jaws
relative to each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
128 for patents to a holder including a pivoted yoke frame
jaw carrier with specific latch means combined with jaw
actuating means.
166 for patents to a holder with a cant type adjustment-lock
which lock is accentuated by further operation of actuating
means.
Subclass:
189
This subclass is indented under subclass 188. Device wherein
the actuating means includes mating concentric threaded
elements, which elements are relatively rotatable to cause
relative axial movement of said elements which movement is
imparted to associated jaws.
SEE OR SEARCH THIS CLASS, SUBCLASS:
172 for patents to a holder adjustable by relative axial
shift of threaded actuating elements and which actuating
means may also effect an adjustment-lock.
240 for patents to a holder with screw-nut type actuating
means, per se.
Subclass:
190
This subclass is indented under subclass 189. Device
including a tapered or sloped block in the train of
adjustment-lock mechanism which block is shiftable to effect
binding of relatively movable jaws.
(1) Note. In the illustration shown below the initial
rotation of the screw element shifts wedge block 4 causing
wedge block 2 to bind against the frame 1 thus immobilizing
member 5 (and part integral therewith) with respect to 1 and
6. Continued rotation of the screw effects said movement
thereof. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
229 for patents to a holder with wedge type actuating
means.
Subclass:
191
This subclass is indented under subclass 190. Device wherein
the block moves cylindrical or spherical means to effect
frictional engagement for locking the adjustment.
(1) Note. In the illustration below (as in the illustration
above) screw rotation moves block 4, here block 4 moves a
roller or ball 2 to immobilize member 5. [figure]
Subclass:
192
This subclass is indented under subclass 190. Device
including an element having one or more toothed portions
movable into engagement with selected notches in another
toothed element to maintain desired jaw adjustment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
212 for patents to a holder with pawl-rack detent
adjustment-lock means.
Subclass:
193
This subclass is indented under subclass 192. Device wherein
the movable element is constrained to limited movement in an
arcuate path for the purpose of engaging the coacting toothed
element.
Subclass:
194
This subclass is indented under subclass 189. Device wherein
the means to maintain an adjustment position includes the
interengagement of a toothed bar with a pivoted or sliding
element which element has one or more teeth mating with those
of the bar.
SEE OR SEARCH THIS CLASS, SUBCLASS:
212 for patents to a holder with adjustment means utilizing
a pawl-rack lock, which lock means is not applied by means
common to it and to the jaw actuating means.
Subclass:
195
This subclass is indented under subclass 194. Device wherein
an internally threaded element of the actuating means is
fixed or secured to, then serves as the reaction element for
transmitting work gripping force when a mating externally
threaded element is rotated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
246 for patents to a holder with screw-nut type actuating
means utilizing a relative fixed nut element.
Subclass:
196
This subclass is indented under subclass 188. Device wherein
the actuating means includes cam* or eccentric* means.
(1) Note. See (3) Note under subclass 229.
SEE OR SEARCH THIS CLASS, SUBCLASS:
204 for patents to a holder with cam or eccentric means
which only effect adjustment-lock.
229 for patents to a holder with cam or eccentric actuating
means.
Subclass:
197
This subclass is indented under subclass 196. Device wherein
the cam means coacts in succession with another cam,
eccentric, or wedge means to effect both actuation and
adjustment-lock.
Subclass:
198
This subclass is indented under subclass 196. Device wherein
the cam means coacts in succession with some actuating
mechanism other than a cam, eccentric, or wedge means.
(1) Note. For example, the diverse means may be a toggle
mechanism.
Subclass:
199
This subclass is indented under subclass 196. Device wherein
the cam means included at least two separate spaced contours
which act to transmit motion as the cam is moved.
(1) Note. Generally, one contour effects adjustment-lock and
another contour effects actuation as the cam is moved.
Subclass:
200
This subclass is indented under subclass 196. Device wherein
a surface of the cam normal to the pivotal or rotational axis
is modified to impart to-and-fro movement, parallel to said
axis, to a follower element as the cam is pivoted, either the
structure of (a) an axial follower or (b) a normal cam
surface being specifically claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
232 for patents to a cam actuator with radial face and/or
axial follower features.
Subclass:
201
This subclass is indented under subclass 188. Device wherein
the actuating means is a toggle* means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
228 for patents to a holder with toggle actuating means.
Subclass:
202
This subclass is indented under subclass 188. Device wherein
the actuating means includes a pivotal or rotatable gear-like
portion rocked into engagement with a toothed bar to lock the
jaw adjustment and further pivoted or rotated to effect
relative jaw motion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227 for patents to a holder with rack and pinion actuating
means.
Subclass:
203
This subclass is indented under subclass 165. Device wherein
a mutually immobilizing engagement between adjustable
elements of the holder is effected or maintained by mechanism
which increases pressure of one element (or part of one)
against the other (or part of the other) to cause binding.
(1) Note. Included in this and indented subclasses are lock
means with roughened or serrated surfaces to enhance the
frictional characteristics of abutting parts. However, the
claimed modification, in structural terms, of one surface to
coact with an element of another surface is considered to
constitute a detent type lock. For example: the recital of
"interengageable teeth", "cogs", "racks", "pawls", "dogs",
"pins", "ratchet grooves", "lugs", "keys", "studs",
"notches", or "fingers" is considered descriptive of detent
means; while "roughened" or "serrated" surfaces are deemed
frictional surface characteristics for this and indented
subclasses.
(2) Note. If the only disclosed means for increasing the
pressure to cause binding is a spring means, and/or a simple
lever, and/or gravity acting on a "detent" means, then such
means is not considered to be a clamp or friction type means,
and original placement will be made in subclasses 207+.
(3) Note. If a patent claims both a "detent" type and a
clamp or friction type adjustment (e.g., a set screw is used
to force a toothed element into engagement with a mating
toothed element), original placement will be in this
subclass. Thus, if a set screw (or similar) means plus a
surface configuration is claimed, whether the surface is
considered to be "roughened" or "detent" type is immaterial.
However, if no set screw (or similar) means is used to apply
or force one configured surface into interengagement with a
coacting configured surface, then (1) Note applies.
SEE OR SEARCH THIS CLASS, SUBCLASS:
166 for patents to a holder with frictional locking means
effected by relative tilting or skewing of elements.
207 especially the indented subclasses 210 and 215.
Subclass:
204
This subclass is indented under subclass 203. Device
including a cam* to effect interengagement of such locking
elements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
229 for patents to a holder with cam actuating means and see
search notes thereunder.
Subclass:
205
This subclass is indented under subclass 203. Device
including mechanism to remove or reduce an immobilizing
pressure between such elements to permit relative
adjustment.
(1) Note. The mechanism is a means other than a bias or the
means used to apply the lock.
SEE OR SEARCH THIS CLASS, SUBCLASS:
169 for patents to a holder with jaw adjustment means
including cant-lock release means.
Subclass:
206
This subclass is indented under subclass 203. Device wherein
such mechanism comprises a confined, resilient, and generally
noncompressible member with means to distort said member to
cause binding of the adjustable holder elements.
Subclass:
207
This subclass is indented under subclass 165. Device
including adjustment-lock* means which means comprise plural
elements (each element carried by, integral with or part of a
coacting jaw* member) said elements so configured that the
interengagement of a portion of one with a portion of another
causes immobilization of the means for relative jaw
adjustment.
(1) Note. The detent may only limit relative adjustment in a
particular direction(s) rather than completely fix one member
with respect to another.
SEE OR SEARCH THIS CLASS, SUBCLASS:
63 for patents to a holder mounted for movement with
indexing stops.
203 for frictional engagement to effect adjustment-lock and
see (1) Note thereunder for the distinction between
"roughened" surfaces and "detents".
284 for patents to a holder detent fastener means for a jaw
insert.
Subclass:
208
This subclass is indented under subclass 207. Device wherein
the detent is a bar, pin or rod which is insertable axially
(i.e., longitudinally) within a selected aperture or mating
opening to maintain a desired adjustment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
69 for patents to a pawl-rack adjustment of a holder.
Subclass:
209
This subclass is indented under subclass 208. Device wherein
the immobilized member is one of a pair of relatively movable
fulcrumed jaws.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237 for patents to a holder with pivoted jaw actuating
means.
Subclass:
210
This subclass is indented under subclass 207. Device
including a notched or toothed bar that is disclosed as being
adjusted* by manually pivoting, sliding or rocking of said
bar into and out of interengagement with a coacting element
(pin, pawl or second rack-type element).
(1) Note. See HAND*.
SEE OR SEARCH THIS CLASS, SUBCLASS:
203 for patents to a holder including clamp or friction type
adjusting means, and see search notes thereunder.
Subclass:
211
This subclass is indented under subclass 207. Device wherein
one element is moved laterally of its general extent to
engage a selected notch in another toothed element to
maintain a desired adjustment of jaws.
SEE OR SEARCH THIS CLASS, SUBCLASS:
67 for patents to a pin-rack adjustment of a holder.
Subclass:
212
This subclass is indented under subclass 207. Device wherein
one element having one or more toothed portions is pivotable
or slidable into engagement with the selected notches in
another toothed element to maintain a desired jaw
adjustment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
68 for patents to a pawl-rack adjustment of a holder.
171 for patents to a holder with adjustment-lock means
including both interengagement of configured surfaces and
canting to maintain desired jaw adjustment, the configured
surfaces portions being integral or fixedly secured to said
surfaces.
194 for patents to a holder with a pawl-rack adjustment-lock
which lock is applied by the means for relative jaw
actuation.
Subclass:
213
This subclass is indented under subclass 212. Device wherein
a toothed element is movable into and out of engagement with
a coacting element by a pivotal shift of the externally
threaded cylinder forming part of the actuating* mechanism.
Subclass:
214
This subclass is indented under subclass 212. Device
including a lever (1st, 2nd or 3rd class) or lever linkage
actuating* means which means transmits relative motion to the
jaws via the pivoted or slidable toothed element.
Subclass:
215
This subclass is indented under subclass 212. Device
including a resilient means to bias the pivotal or slidable
toothed element into engagement with the coacting toothed
element.
Subclass:
216
This subclass is indented under subclass 86. Device
including an actuating* means to move at least one jaw with
respect to another.
(1) Note. Generally, a patent providing for relative
movement of jaws not clearly encompassed by the concept of
adjustment* is considered to set forth the use of actuating
means and such patent will be placed here (subclasses 216+).
(2) Note. A patent claiming an actuating train, which train
includes, in series, two or more of the specific actuating
means set forth below, will be placed as an original in the
first or superior subclass providing for any of said claimed
actuating means and a cross reference copy placed in
subclasses providing for other claimed actuating means; e.g.,
a patent claiming the use of a toggle mechanism to drive a
cam actuating means will be placed, as an original, in
subclass 228 with a cross reference in subclasses 229+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8 for patents to a holder with magnetic means to exert force
and work gripping.
165 for patents to a holder which includes means for
adjustment combined with actuating means as well as
adjustment means, per se.
SEE OR SEARCH CLASS:
81, Tools, 342, for patents to plier actuating means.
100, Presses, 280, for patents for a reciprocating press with
mechanical force multiplier means.
Subclass:
217
This subclass is indented under subclass 216. Device
including jaws and jaw supporting structure so configured and
linked that, one the jaws are in firm contact with the work,
said jaws will react to movement of the work by tending to
tighten engagement with said work, without the application of
other forces on said jaws or jaw supporting structures.
(1) Note. Generally, the movement of the work is rotary and
the jaws tend to hold the work against further rotation but
the patents placed herein are not limited to such rotational
action.
(2) Note. The work need not be claimed for patent placement
here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
166 for patents to holder with similar self-camming action
used to lock parts of a jaw mechanism in desired adjustment
relationship.
Subclass:
218
This subclass is indented under subclass 216. Device
including a single means effective to move each of two or
more coacting jaws which jaws engage the same work, with
respect to a common member as well as with respect to each
other.
(1) Note. The common member may be a base or a support for
an actuating means or a linkage between jaws.
(2) Note. Included in this and indented subclasses are
patents to a holder supported only by the contact of the
coacting jaws with the work itself.
(3) Note. In the illustration below jaws 1 and 2 are each
moved by screw 3 with respect to each other and screw 3.
[figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
34 for patents to a single fluid unit to move plural jaws.
42 for patents to plural holders with means for simultaneous
actuation of the holders.
107 for patents to plural jaw pairs with inter-related
actuating means.
119 for patents to a quadrilateral frame type holder with at
least one actuating means upon each side of the frame.
142 for patents to a holder with separate actuating means
for each of a jaw pair.
153 for patents to plural jaw pairs with common actuating
means.
242 for patents for a screw means with right and left thread
to move a jaw pair.
Subclass:
219
This subclass is indented under subclass 218. Device wherein
the single means is either of two threaded cylindrical
members which members lie in the plane of relative jaw
movement, generally normal to and at different distances from
the work engaging surfaces of the jaws.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237 for patents to a holder with pivoted jaws.
240 for patents to a holder with screw-nut type actuating
means.
Subclass:
220
This subclass is indented under subclass 219. Device
including structural details for the joint or connection
between the screw means and the jaws.
SEE OR SEARCH THIS CLASS, SUBCLASS:
139 for patents to a holder with similar joint structure so
that coacting jaw faces may be aligned.
Subclass:
221
This subclass is indented under subclass 216. Device
including two or more mechanisms to move the same jaw.
(1) Note. Patents placed in this subclass require that the
claimed holder include at least two force multiplying or bias
inducing means acting on the same jaw. The inclusion of means
to vary effective speed of jaw movement or jaw force is not
such a mechanism. For example, a holder utilizing a
differential screw actuator is not considered to have plural
means for this subclass.
(2) Note. In the illustration shown below jaw 3 can be moved
by the force of both spring 2 and screw 1. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
92 for patents to a clamp couple element with plural
actuating means.
241 for patents to a holder with a differential screw
actuating means.
Subclass:
222
This subclass is indented under subclass 221. Device
including two or more screw nut actuating means operatively
coupled by means of relatively rotatable bodies provided with
teeth or frictional interengaging elements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
225 for patents to a holder with gear type (other than
screw-nut) actuating means.
240 for patents to a holder with screw-nut actuating means.
Subclass:
223
This subclass is indented under subclass 221. Device
including a screw-nut type actuating means and additional
actuating mechanism, which mechanism effects a shift of the
internally threaded member of said screw-nut means.
(1) Note. The nut usually carries the screw along with it as
said nut is shifted.
SEE OR SEARCH THIS CLASS, SUBCLASS:
240 for patents for a holder with screw-nut type actuating
means and see notes thereunder for related subclasses and
definition of screw-nut type mechanism.
Subclass:
224
This subclass is indented under subclass 216. Device
including means which resile upon the jaw's first gripping
the work.
(1) Note. The extent to which the device yields or resiles
upon gripping contact with work is usually limited to, and a
function of, the nature of the particular work disclosed.
(2) Note. Included here are patents to a holder with a jaw,
said jaw specifically claimed as resilient or yielding.
(3) Note. In the illustration below spring 1 serves as a
yielding element upon initial contact of jaws 2 and 3 with
work. As shown the spring is relatively unstressed, the screw
4 moves to the left against said spring a short distance with
respect to jaw 2. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
157 for patents for a holder with a movable jaw biased to
nonholding position.
254 for patents for a holder with a movable jaw with bias
means to actuate the jaw.
SEE OR SEARCH CLASS:
81, Tools, subclass 417 and 427, for patents to a
resiliently urged plier.
Subclass:
225
This subclass is indented under subclass 216. Device
including relatively rotatable bodies (other than screw-nut
members) provided with teeth or frictional interengaging
elements whereby one rotatable body will impart motion to, or
receive motion from, some other body by rolling contact,
which motion directly, or as part of a mechanism train,
effect relative jaw motion.
(1) Note. Screw-nut gearing is characterized by the fact
that the relative rotation and relative axial movement,
between screw and nut, is about and along, a common axis.
While screw-nut means are a species of gearing, patents for a
holder including a screw-nut means in the jaw actuating train
are placed in subclasses 240+ below, e.g., a patent for a
holder including the combination of a gear driven screw-nut
actuating means is placed in subclasses 240+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
222 for patents to a holder with plural intergeared
screw-nut type actuating means.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, 640, for patents for
gearing means, per se, and see search notes thereunder.
Subclass:
226
This subclass is indented under subclass 225. Device wherein
the relatively rotatable bodies are (A) a toothed wheel
engaged by the mating spiral or helix on (B) a cylinder
tangent to a said wheel.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, 425, for patents for worm
gearing means, per se.
Subclass:
227
This subclass is indented under subclass 225. Device wherein
the relatively rotatable bodies are (A) a toothed bar engaged
by mating teeth on the outer periphery of (B) a wheel-like
member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202 for patents for a holder with a rack-pinion sector means
used to both lock adjustment and actuate jaw movement.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclass 420, for patents
to rack and pinion gear means, per se.
Subclass:
228
This subclass is indented under subclass 216. Device wherein
a toggle* linkage is utilized to effect the relative movement
of jaws*.
SEE OR SEARCH THIS CLASS, SUBCLASS:
201 for patents to a holder with toggle means to both lock
the adjustment and actuate jaw movement.
SEE OR SEARCH CLASS:
81, Tools, subclass 363 and 367+, for patents to toggle
actuated pliers.
Subclass:
229
This subclass is indented under subclass 216. Device wherein
the actuating means includes (A) cam* means or (B) a tampered
or sloped block (acting as an inclined plane) for effecting
relative jaw movement.
(1) Note. The wedge means must include mechanism to seat or
shift said means, to be considered as an actuating means.
(2) Note. See subclass 165, (3) Note for line with respect
to insert block adjustment.
(3) Note. A helical element coacting with a mating threaded
element or threaded segment, so that the only relative
movement between said elements is about and/or along a common
axis, is considered to be a screw-nut type of mechanism
rather than a cam or gear means. In the case of a threaded
segment the relative axial movement of the segment with
respect to the helical element is along a line parallel to
the helical axis. The provision of means for relative radial
movement between the elements is considered to characterize
the mechanism as a cam type means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
165 for patents to a holder with a wedge insert for jaw
adjustment.
196 for patents to a holder with cam means to both lock the
adjustment of and actuate jaw movement.
204 for patents to a holder with cam means to lock
adjustment.
Subclass:
230
This subclass is indented under subclass 229. Device
including means to retain the cam or wedge in a selected one
of several spatial relationship so as to maintain or fix
holding relationship of jaws.
Subclass:
231
This subclass is indented under subclass 229. Device wherein
the contoured motion effecting portion of the cam bears
directly on the work being held.
Subclass:
232
This subclass is indented under subclass 229. Device wherein
a surface of the cam normal to the pivotal or rotational axis
is modified to impart to-and-fro movement, parallel to said
axis, to a follower element as the cam is pivoted, either the
structure of (A) an axial follower or (B) a normal cam
surface being specifically claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
200 for patents to a holder with radial face cam means to
both lock the adjustment of, and actuate, jaws.
Subclass:
233
This subclass is indented under subclass 229. Device wherein
the contoured motion effecting portion of the cam is a
configured elongated aperture or channel.
Subclass:
234
This subclass is indented under subclass 229. Device wherein
a tapered or sloped block is translated for jaw actuation.
Subclass:
235
This subclass is indented under subclass 229. Device wherein
the cam consists of a specifically recited circular element
mounted for pivotal or rotary movement about an axis spaced
from the circle center.
Subclass:
236
This subclass is indented under subclass 229. Device wherein
the cam is integral with a bar mounted for arcuate movement
about the axis of said cam by manual positioning of said
bar.
Subclass:
237
This subclass is indented under subclass 216. Device wherein
the jaw(s) is moved arcuately by actuating means which rocks
the jaw or jaw support about a fulcrum member to grip work.
(1) Note. Included here are patents to a holder with arcuate
jaw movement effected by actuating means applied as in a
second class lever system i.e., the work engaging surface is
intermediate the fulcrum point and the point of force
application.
SEE OR SEARCH THIS CLASS, SUBCLASS:
91 for patents to a clamp couple element with fastening
means which element may rock to hold work.
150 for patents to a holder including separate positioning
means for each of a jaw pair, at least one of which jaws is
pivotally mounted and actuated.
157 for pivoted jaws with means to bias jaw(s) toward
nonholding position.
Subclass:
238
This subclass is indented under subclass 237. Device wherein
the fulcrum is intermediate the work engaging surface and the
point or area of force application.
Subclass:
239
This subclass is indented under subclass 237. Device wherein
the point or area of force application is intermediate the
fulcrum and the work engaging surface.
Subclass:
240
This subclass is indented under subclass 216. Device wherein
the actuating* means includes mating concentrically threaded
elements which elements are relatively rotatable about a
common axis to cause relative axial movement of said
elements, which relative movement is imparted to associated
jaws*.
(1) Note. Included here are patents for a holder with
elements of less than 360 deg. mating concentric extent. For
example, the nut portion may only be a thread segment or the
screw may be interrupted.
(2) Note. A worm-gear, though similar to screw-nut, does not
provide for relative rotation of mating elements about a
common axis. A patent to a holder with a worm-gear actuator
is therefor excluded from this subclass.
(3) Note. See (3) Note under subclass 229.
SEE OR SEARCH THIS CLASS, SUBCLASS:
172 for patents for a holder with screw-nut actuating means
including means to adjust jaws by relative axial shift of the
threaded elements.
189 for patents for a holder with screw-nut actuating means
which also lock the jaw adjustment.
223 for patents for a holder with plural actuating means for
one jaw, one of which is of the screw-nut type.
225 for patents for a holder with gear type (other than
screw-nut) actuating means.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclass 424.8, for patents
for screw-nut type gearing, per se.
Subclass:
241
This subclass is indented under subclass 240. Device wherein
at least one portion of a threaded actuating means is
provided with a lead or a pitch smaller or greater than
another portion.
(1) Note. Rotation of such actuation means thus imparts
axial movement of varying degrees to coacting mating
elements.
Subclass:
242
This subclass is indented under subclass 240. Device wherein
threaded portions of one of said elements form two opposed
helices so that rotation of said element causes relative
movement in opposite directions between coacting threaded
elements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
218 for patents for a holder including a common means to
actuate plural jaws, and see the notes thereunder.
Subclass:
243
This subclass is indented under subclass 240. Device wherein
the internally threaded element is rotated.
Subclass:
244
This subclass is indented under subclass 240. Device
including means to support a threaded cylindrical element at
both ends so that said element can be rotated without axial
movement.
(1) Note. The rotation of the threaded cylindrical element
causes a mating nut and its associated jaw to move axially of
said element.
Subclass:
245
This subclass is indented under subclass 240. Device
including means to turn one element, with respect to its
mating element, about the threaded axis.
Subclass:
246
This subclass is indented under subclass 240. Device wherein
an externally threaded element is rotated for axial movement
along with a jaw* carried or associated with said element.
(1) Note. Generally, the screw end has a jaw mounted thereon
or engages a jaw supporting carriage.
Subclass:
247
This subclass is indented under subclass 246. Device
including a shell or channel member, generally coextensive
with and surrounding the screw, which member moving with the
screw serves as a slide or rail to determine the path of
relative jaw movement.
(1) Note. In most instances the member is so configured as
to limit jaw movement to translation.
(2) Note. In the illustration below slide 1 moving with the
screw 4 serves as a guide for movement of the jaw coacting
with jaw 2. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
250 for patents to screw actuated holders with means for jaw
translation.
Subclass:
248
This subclass is indented under subclass 246. Device
including an internally threaded element, coacting with the
rotated element and serving as a reaction member to effect
axial movement of the rotated element, which internally
threaded element is not integral with the holding device
frame and thus capable of being interchanged with other
elements if necessary or desired.
(1) Note. This substitution feature is usually for the
purpose of wear correction or to facilitate assembly.
(2) Note. See the illustration is subclass 247 above wherein
the nut-like element 3 is dovetailed in the vise frame so as
to be replaceable if necessary.
SEE OR SEARCH THIS CLASS, SUBCLASS:
247 for patents to a holder with traveling screw actuator
within a box-beam guide which type of holder usually has a
replaceable nut. Generally, no cross-references of this
feature have been made to this (248) subclass.
Subclass:
249
This subclass is indented under subclass 246. Device wherein
the screw coacts with a nut, or nut-like portion, on one leg
of an arched, curved or channel shaped member so that the jaw
associated with said screw is movable relative to a second
jaw constituting, or attached to the other leg of said
member, and which member is not secured to a base or mount.
SEE OR SEARCH THIS CLASS, SUBCLASS:
143 for patents to a C-clamp type holder including separate
actuating means for each of coacting jaws.
SEE OR SEARCH CLASS:
100, Presses, subclass 231, for patents to a C-frame type
reciprocating press construction.
Subclass:
250
This subclass is indented under subclass 246. Device
including means associated and movable with the jaw to (A)
keep the work engaging surface(s) of said jaw from shifting
or varying angularly with respect to a coacting work engaging
surface and/or (B) prevent rotation of said jaw as the screw
rotates.
SEE OR SEARCH THIS CLASS, SUBCLASS:
139 for patents to a holder with means to change the
relative angular position of coacting jaw faces.
Subclass:
251
This subclass is indented under subclass 250. Device wherein
the means for preventing jaw rotation is a configured frame
guide coacting with a mating configuration carried by the
jaw.
Subclass:
252
This subclass is indented under subclass 250. Device wherein
the movable means, to keep coacting work engaging surfaces
from shifting angularly, moves in the same direction as the
screw element along a separate but congruent path.
Subclass:
253
This subclass is indented under subclass 252. Device
including two or more traveling elements parallel to the
screw and also lying in a common straight plane.
(1) Note. In the illustration below bars 2 and 3 are the
traveling elements used to maintain parallelism. [figure]
Subclass:
254
This subclass is indented under subclass 216. Device
including means tending to urge the jaws* into gripping
relationship with the work.
(1) Note. Included here are patents to a holder with means
which rely upon springs, gravity or resiliency of structural
elements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
157 for patents to a holder with bias means to urge jaws
away from work holding position.
SEE OR SEARCH CLASS:
294, Handling: Hand and Hoist-Line Implements, subclass 148
and 166 for a hand-held article carrier which employs a
spring to retain the article on the carrier.
Subclass:
256
This subclass is indented under subclass 86. Device
including means to limit the movement of one jaw with respect
to an opposed jaw so that work-engaging or work-gripping
faces of the respective jaws are maintained continuously
normal to the line of relative jaw movement.
(1) Note. While most of these devices are for flat faced
jaws, the subclass is not so limited. Configured jaws with
means to maintain the relative spatial orientation, as set
forth above, are classified here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
212 for patents to screw means to actuate jaws with parallel
mechanism.
SEE OR SEARCH CLASS:
81, Tools, 352, for patents to means for parallel movement of
plier jaw faces.
Subclass:
257
This subclass is indented under subclass 86. Device
including a specifically claimed work engaging gripper (A)
structure, (B) composition, and/or (C) conformation.
(1) Note. This and indented subclasses are rather parallel
to subclasses 418+ of Class 81, Tools, thus a full search
must encompass both bodies of art.
SEE OR SEARCH CLASS:
81, Tools, 418, for patents to plier jaw structure, and
subclass 186 for wrench jaw structure, and see (1) Note
above.
100, Presses, 295, for patents to platens or pressure surface
structure.
279, Chucks or Sockets, subclass 123, for patents to radially
reciprocating jaw structure, per se.
Subclass:
258
This subclass is indented under subclass 257. Device
including means to permit movement of a jaw* or portion
thereof to orientate a contacting surface with respect to the
work.
(1) Note. The means to permit movement of a jaw is other
than one including a mechanical advantage. Thus, "means to
permit movement" includes a pivot, swivel or slide.
(2) Note. In the illustration below the jaw element 1 is
freely pivoted so as to be "self-aligning" with the work
contacted. [figure]
SEE OR SEARCH THIS CLASS, SUBCLASS:
139 for patents to a holder wherein the means for aligning a
jaw (with respect to another jaw or work) includes a
mechanical advantage, e.g., screw, cam, lever, etc.
Subclass:
259
This subclass is indented under subclass 258. Device
including (A) a separate work-engaging element fastened or
secured to at least one jaw or (B) a separate work-engaging
element positioned between opposed jaws so as to be actuated
to grip work by the movement of said jaws.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271 for patents to an attachment and/or insert which is not
alignable.
Subclass:
260
This subclass is indented under subclass 259. Device wherein
the fastening means includes a crook or crook-like element
engaging an eye or aperture.
(1) Note. The curved or nib element can be part of either
the jaw or attachment.
Subclass:
261
This subclass is indented under subclass 259. Device wherein
the fastening means includes an element forming part of the
jaw (or mounted on the jaw) in mating interengagement with a
generally complementary element forming part of the
attachment or insert.
SEE OR SEARCH THIS CLASS, SUBCLASS:
283 for patents to a socket fastener means for a jaw
attachment and/or insert that is not angularly alignable.
Subclass:
262
This subclass is indented under subclass 259. Device wherein
the fastening means includes a screw or bolt means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
282 for patents to a threaded fastener means for a jaw
attachment or insert that is not angularly alignable.
Subclass:
263
This subclass is indented under subclass 259. Device wherein
the attachment is secured to a jaw by a spring or elastic
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
281 for patents to other yieldable fastener means.
Subclass:
264
This subclass is indented under subclass 259. Device wherein
the attachment or insert is placed intermediate opposed jaws
so that jaw actuation* causes said attachment or insert to
grip work.
(1) Note. Included here are patents for an insert which
insert includes structure for the insert to rest on the
jaws.
SEE OR SEARCH THIS CLASS, SUBCLASS:
277 for patents to an insert (not angularly alignable)
loosely positioned between jaws.
Subclass:
265
This subclass is indented under subclass 257. Device wherein
a work-engaging member includes at least two work-engaging
portions, and said engaging portions do not form a continuous
surface.
(1) Note. Included in this subclass are patents which merely
call for "roughened" or "knurled" or "anti-friction" gripping
surfaces.
SEE OR SEARCH THIS CLASS, SUBCLASS:
268 for patents to a holder with specific nonplanar work
contacting surface configuration.
Subclass:
266
This subclass is indented under subclass 265. Device wherein
the work-engaging portions are movable to match the general
shape of the work.
(1) Note. The work-engaging portions approximately mate with
the surface of the workpiece.
Subclass:
267
This subclass is indented under subclass 265. Device
including means for uniformly distributing the actuating
force so that the individual work-engaging portions each
exert the same gripping action.
Subclass:
268
This subclass is indented under subclass 265. Device in
which the surface of at least one work-engaging portion is
nonplanar, i.e., a stepped and/or arcuately formed surface.
(1) Note. A "roughened" or "nonfriction" surface is not
considered to define an angular or curved face for this
subclass.
Subclass:
269
This subclass is indented under subclass 268. Device in
which the surface of one work-engaging portion is different
from that of a coacting work-engaging portion.
Subclass:
270
This subclass is indented under subclass 268. Device in
which the surface of one work-engaging portion substantially
mates with the surface of a workpiece.
Subclass:
271
This subclass is indented under subclass 257. Device
including (A) a separate work-engaging element fastened or
secured to at least one jaw or (B) a separate work-engaging
element positioned between opposed jaws so as to be actuated
to grip work by the movement of said jaws.
(1) Note. The removal of the separate work-engaging element
will leave a jaw* for engaging a workpiece.
SEE OR SEARCH THIS CLASS, SUBCLASS:
136 for patents to a holder insert for applying a
"hold-down" component.
259 for patents to a holder attachment and/or insert that is
angularly alignable.
Subclass:
272
This subclass is indented under subclass 271. Device wherein
the work-engaging elements include opposed finger or fork
elements which are offset from each other so as to interlace
as the opposed elements approach each other.
Subclass:
273
This subclass is indented under subclass 271. Device
including a specified composition for the separate
work-engaging element or the work-engaging surface of such
element.
(1) Note. The recital of "yielding" material is not a naming
for this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
275 for patents to a holder with yieldable attachments
and/or inserts.
Subclass:
274
This subclass is indented under subclass 273. Device wherein
the named work-engaging surface consists of other than a
metal or metal alloy.
Subclass:
275
This subclass is indented under subclass 271. Device wherein
the work-engaging element is resilient or includes a
resilient work-contacting surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
22 for patents to a flexible wall element where fluid
pressure is used to force said element into contact with a
work-piece.
Subclass:
276
This subclass is indented under subclass 271. Device
including means for setting up a magnetomotive force to hold
the attachment in place.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8 for patents to a magnetic holder.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 285 for patents to a magnetic holder,
per se.
Subclass:
277
This subclass is indented under subclass 271. Device wherein
at least two coacting work-contacting elements are secured to
each other independently of the structure of related
supporting jaws.
(1) Note. Included here are patents for inserts which
include structure so that the inserts rest on the jaw.
SEE OR SEARCH THIS CLASS, SUBCLASS:
163 for patents to articulated jaw attachments or inserts
with means to bias jaws toward nonholding position.
264 for patents to an angularly alignable insert loosely
positioned between jaws.
Subclass:
278
This subclass is indented under subclass 277. Device wherein
the coacting elements are pivoted to each other or to a
common lever.
Subclass:
279
This subclass is indented under subclass 271. Device
including attachment or insert fastening means (or mounting
means) providing for the choice of one of plural available
work-contacting portions.
(1) Note. Included here, for example, are patents to a
device with a swivel mounted attachment so that as desired
one of several faces may be presented to engage work.
Subclass:
280
This subclass is indented under subclass 279. Device
including means for interchange of work-contacting portions
by removal and replacement of the attachment and/or insert
bearing said portion.
Subclass:
281
This subclass is indented under subclass 280. Device wherein
the attachment is secured to a jaw by a spring or elastic
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
263 for patents to a holder with jaws having yieldable
fastener means.
Subclass:
282
This subclass is indented under subclass 280. Device wherein
the attachment is secured to a jaw by a screw or bolt means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
262 for patents to a holder with jaws having threaded
fastener means.
Subclass:
283
This subclass is indented under subclass 280. Device wherein
the insert fastening means includes an element forming part
of the jaw (or mounted on the jaw) in mating interengagement
with a generally complementary element forming part of the
insert.
SEE OR SEARCH THIS CLASS, SUBCLASS:
261 for patents to a holder with jaws having socket fastener
means.
Subclass:
284
This subclass is indented under subclass 280. Device wherein
the attachment or insert fastening means includes an element
forming part of the jaw* in mating interengagement with an
element forming part of said attachment or insert to secure
the elements together.
SEE OR SEARCH THIS CLASS, SUBCLASS:
207 for patents to a holder with detent type lock for
adjustment.
Subclass:
285
This subclass is indented under subclass 86. Device
including structural details relative to (A) shielding of
parts against dirt or corrosion; (B) improving the bearing
characteristics of rubbing parts; (C) providing modifications
to facilitate juxtapositioning of parts in operative position
and (D) re-enforcement of parts subject to failure under
operative conditions.
Subclass:
286
This subclass is indented under subclass 86. Device
characterized by the specific composition of parts and/or of
the whole holder.
Subclass:
287
This subclass is indented under the class definition. Device
wherein at least a portion of the work holder substantially
surrounds at least a portion of the work so that a section
exists whereat the inner periphery of the work holder
surrounds, is substantially contiguous with, and
substantially conforms to, the outer periphery of the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
152 for patents to a holder with plural jaws, and see notes
thereunder.
Subclass:
288
This subclass is indented under subclass 287. Device wherein
the work holder includes a tool couple element*.
SEE OR SEARCH THIS CLASS, SUBCLASS:
48 87, 157, and 290, for patents for other holders having
tool couple elements.
Subclass:
289
This subclass is indented under the class definition. Device
wherein the work holder comprises a surface which, when the
work is being treated, is positioned beneath at least a part
of the work and is in contact with said part of the work to
support the work against the force of gravity, in at least
one position of adjustment of the work holder.
(1) Note. A mere pin is not considered to be a work
underlying support. A pin-type holder is found in subclasses
53+ of this class.
(2) Note. The mere disclosure of an underlying and work
supporting surface, without terminology in the claim clearly
defining said surface as either positioned or modified so as
to hold work against the force of gravity, will not effect
patent placement (as an original) into this and indented
subclasses. Thus recital in a claim of a term such as "base",
"support", "surface", "plane", "frame", "stand", "block",
"cradle", "arm", "spider", "bar", etc., and which term
encompasses a disclosed work underlying support, will not of
itself form the basis of original patent placement.
The "hairline" distinction above is of particular importance
with respect to work clamping or gripping devices which
disclose a work underlying surface support or a surface
obviously capable of such support or even a surface
peculiarly limited to such support. Such disclosure is true
of substantially all vises, clamps, chucks, and gripping
devices including a plethora of claimed references thereto.
The purposes of a restrictive search field are believed best
served by not classifying primarily on this feature (work
underlying support) unless specifically so limited in the
claim.
Judicious cross-referencing of disclosed work underlying
support features into this, and indented subclasses should
assure a reasonably complete field of search for said
features at this locus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
257 for patents to work holder characterized by the details
of jaw and/or attachments.
SEE OR SEARCH CLASS:
248, Supports, appropriate subclasses, for patents including
article-underlying features, which article is not disclosed
as being worked on while so supported. See search notes
thereunder.
405, Hydraulic and Earth Engineering, subclass 7 for a
marine vessel support for a dry dock.
Subclass:
290
This subclass is indented under subclass 289. Device wherein
the work holder includes, in association with the
work-underlying support, a tool couple element*.
SEE OR SEARCH THIS CLASS, SUBCLASS:
48 87, and 288, for patents for other work holders having a
tool couple element.
Subclass:
291
This subclass is indented under subclass 290. Device wherein
the work holder includes a work-stop abutment*.
SEE OR SEARCH THIS CLASS, SUBCLASS:
10 297, 303, and 315, for patents for other work holders
leaving a work-stop abutment.
Subclass:
292
This subclass is indented under subclass 290. Device wherein
the tool couple element is mounted so that it may be moved
from a position beneath the work bearing surface of the
support, where it is ineffective to take part in treatment of
the work, to a position coextensive with or above and surface
where it is effective to participate in said treatment.
(1) Note. Where the relative movement of the support and
element is disclosed as taking place during the treatment of
the work, the patent will be found in the class of the
treating device, and in this class.
Subclass:
293
This subclass is indented under subclass 290. Device wherein
the tool couple element is mounted rigidly in, or on, or is
part of, that portion of the support that underlies and bears
against the work.
Subclass:
294
This subclass is indented under subclass 293. Device wherein
the element has a longitudinal axis and a generally uniform
circular cross-section transverse to this axis, a portion of
the outer periphery of the element serving as part of the
work bearing surface of the support.
Subclass:
295
This subclass is indented under subclass 293. Device wherein
the work bearing surface of the support has an opening
therein having spaced wall portions disclosed as being of the
order of magnitude of the thickness of a tool or tool
support, said wall portions serving to guide the tool in a
substantially horizontal path across the support during
treatment of the work by the tool.
Subclass:
296
This subclass is indented under subclass 289. Device wherein
the work bearing surface of the support has an interruption
or a reentrant portion and the structure of the work bearing
surface of the support is so constructed and disposed that,
when the work is held during treatment, spaced portions of
the work undersurface are in contact with the support, said
spaced portions having between them a portion of the work
under-surface that is not in contact with the support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
304 for a work-stop abutment having connected thereto a work
support portion closing a gap in the support.
Subclass:
297
This subclass is indented under subclass 296. Device wherein
a work-stop abutment* is provided and is mounted so that it
may be moved in a direction generally parallel to at least a
portion of the work-underlying support surface, to thereby
enable the abutment to be selectively positioned with respect
to the support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
10 291, 303, and 315+, for patents for other work holders
having a work-stop abutment.
304 for a work-stop abutment having connected thereto a work
support portion closing a gap in the support.
Subclass:
298
This subclass is indented under subclass 297. Device wherein
at least a portion of the work-stop abutment, or its mounting
means which moves with it, extends into or lies within a gap
in the support.
Subclass:
299
This subclass is indented under subclass 298. Device
including at least two such abutments, not rigidly connected
to each other, each abutment being mounted to move in and
along a guideway formed by or in a gap in the support.
Subclass:
300
This subclass is indented under subclass 298. Device wherein
the abutment has a distance indicating member associated
therewith which enables the operator to determine the
distance of the abutment from a datum position in any
position of adjustment of the abutment.
Subclass:
301
This subclass is indented under subclass 298. Device wherein
holding means are provided for the purpose of preventing
movement of the abutment in the gap after the abutment has
been moved to the desired position in the gap, said holding
means being additional to the means provided for moving the
abutment in the gap.
Subclass:
302
This subclass is indented under subclass 296. Device wherein
a portion of the work undersurface not in contact with the
support is completely surrounded by portions of the work
undersurface that are in contact with the support.
Subclass:
302.1
This subclass is indented under subclass 289. Apparatus
including means providing an underlying support upon which a
plastic or particulate material is mixed or kneaded by hand
(e.g., pastry board, etc.).
SEE OR SEARCH CLASS:
100, Presses, 295, for a platen or pressure surface of a
press.
108, Horizontally Supported Planar Surfaces, appropriate
subclasses for means providing a table surface with spacing
support means.
433, Dentistry, subclass 49 for mixing slabs disclosed for
use in the dental art.
Subclass:
303
This subclass is indented under subclass 289. Device wherein
the work holder includes a work-stop abutment*.
SEE OR SEARCH THIS CLASS, SUBCLASS:
10 291, 297, and 315+, for patents for other work holders
having a work-stop abutment.
Subclass:
304
This subclass is indented under subclass 303. Device wherein
a movable abutment is connected to an element that serves as
a portion of the work underlying support, said element being
connected to the abutment in such a manner that at least a
portion of the element moves with respect to the rest of the
support when the position of the abutment, with respect to
the rest of the support, is varied.
Subclass:
305
This subclass is indented under subclass 303. Device wherein
the abutment has the function of restraining the movement of
the work across the support surface in at least two
directions.
(1) Note. The abutment may comprise a plurality of discrete
unconnected elements.
Subclass:
306
This subclass is indented under subclass 303. Device wherein
the abutment is mounted so as to hang down from a member
positioned above the work-underlying support surface.
Subclass:
307
This subclass is indented under subclass 289. Device wherein
a member is provided which enables the operator to determine
when the work is placed in a desired position on the support,
by visually aligning the member and a particular portion of
the work.
Subclass:
308
This subclass is indented under subclass 289. Device wherein
means are provided to hold a relatively large mass of the
work, from which mass a relatively small portion of the work
is brought to the support.
(1) Note. The mass, for instance, may be a coil of work
material.
Subclass:
309
This subclass is indented under subclass 289. Device wherein
means are provided for (A) holding the support in a desired
position against the force of gravity, or (B) holding a
support made of a plurality of parts, each of which underlies
and contacts the work, in a desired assembled relation.
(1) Note. The support holding means may be a part of the
support specially provided to enable the support to be
connected to the member on which it is mounted.
SEE OR SEARCH CLASS:
248, Supports, appropriate subclasses, for patents to a work
holder supporting structure, per se.
Subclass:
310
This subclass is indented under subclass 309. Device wherein
the support is connected to its mount by yieldable means
which normally apply an upward force to the support, which
force may be overcome by a downward force.
Subclass:
311
This subclass is indented under subclass 309. Device wherein
the support comprises a plurality of discrete members, each
of which has an upper surface upon which the work lies, and
the support mounting means includes means to hold the members
in a desired assembled relationship.
SEE OR SEARCH THIS CLASS, SUBCLASS:
296 for a support comprising a plurality of blocks with a
gap in the work-underlying surface between one or more pairs
of the blocks.
Subclass:
312
This subclass is indented under subclass 311. Device wherein
the holding means comprises a member extending from one side
of the assembled blocks to the opposite side of the assembled
blocks through openings in the blocks.
Subclass:
313
This subclass is indented under subclass 312. Device wherein
the holding means comprises, in addition to the through rod,
a member or members which completely surrounds the blocks.
Subclass:
314
This subclass is indented under subclass 311. Device wherein
the holding means comprises a member or members which
completely surrounds the blocks.
Subclass:
315
This subclass is indented under the class definition. Device
where there is provided a work-stop abutment*.
(1) Note. A patent will not be placed as an original in this
subclass if the combination of a work-underlying support and
work-stop abutment is claimed. See the note under "SEARCH
THIS CLASS, SUBCLASS" below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
10 291, 297, and 303, for other work holder patents having a
claimed work-stop abutment.
Subclass:
316
This subclass is indented under subclass 315. Device wherein
the top of the abutment is resiliently urged upwardly away
from the bottom of the abutment and may be moved toward the
bottom upon the application of a force directed against the
top.
Subclass:
317
This subclass is indented under subclass 315. Device wherein
spring means are provided in the abutment mounting which urge
the work contacting surface of the abutment in a particular
direction, said spring means permitting the surface to move
against the spring force when a force is applied against the
surface.
Subclass:
318
This subclass is indented under subclass 315. Device wherein
the abutment includes a pair of members which are parallel to
each other and not in contact with each other, said pair of
members serving to support the work abutting surface at
spaced points.
Subclass:
319
This subclass is indented under subclass 315. Device wherein
the work is contacted by at least two surfaces serving as
abutments, and the work contacting surfaces of the abutments
do not form one substantially continuous surface.
Subclass:
320
This subclass is indented under subclass 315. Device wherein
motive power means are provided to cause movement of the
abutment relative to its mounting.
Subclass:
329
MISCELLANEOUS:
This subclass is indented under the class definition. Device
not provided for in the subclasses above.
CROSS-REFERENCE ART COLLECTIONS
Subclass:
900
SUPPORTING STRUCTURE HAVING WORK HOLDER RECEIVING APERTURES
OR PROJECTIONS:
Work holder supporting structure having apertures or
projections located on one or more of its surfaces for
receiving complementary formations on members of the work
holder, to enable one or more of the members to be shifted to
a different set of apertures or projections when a new
orientation or configuration of the member is desired.
Subclass:
901
COLLAPSIBLE OR FOLDABLE WORK HOLDER SUPPORTING STRUCTURE:
Work holder supporting structure which is designed to
collapse or fold from its normal use configuration to a
smaller, more compact, storage configuration when the
supporting structure is not intended to be used (e.g.,
portable workbenches).
Subclass:
902
WORK HOLDER MEMBER WITH V-SHAPED NOTCH OR GROOVE:
Work holder provided with at least one member which has a
work-contacting and -supporting surface having a V-shaped
notch or groove for at least partially encircling the work
and confining it to a particular portion of the surface.
Subclass:
903
WORK HOLDER FOR ELECTRICAL CIRCUIT ASSEMBLAGES OR WIRING
SYSTEMS:
Work holder for positioning electrical elements relative to
each other in a particular arrangement during the assembling
or repair of an electrical circuit or wiring system.
Subclass:
904
WORK HOLDER FOR POSITIONING ELEMENTS OF BUILDING IN INSTALLED
LOCATION:
Work holder intended to position one element of a building
relative to another element of the building for their
attachment to each other in their final assembled location
and orientation in the building.
Subclass:
905
WORK HOLDER FOR DOORS AND DOOR FRAMES:
Work holder intended to hold a door or a door frame prior to
its installation in a doorway during various work treatment
operations on the frame or the door.
Subclass:
906
WORK HOLDER FOR SKIS:
Work holder intended to hold a ski in a particular position
or orientation during a waxing, repair, or maintenance
operation thereon.
Subclass:
907
WORK HOLDER FOR FISHING FLIES:
Work holder intended to hold a fishing hook while it is
dressed with hair, feathers, silk, tensel, or other material
into a finished product which vaguely resembles an insect.
Subclass:
908
WORK HOLDER FOR CATHODE-RAY TUBES:
Work holder intended to hold a cathode-ray display tube
during an assembling or repair operation.
Subclass:
909
WORK HOLDER FOR SPECIFIC WORK:
Work holder constructed with features (e.g., contour of
work-contacting surface) peculiar to the holding of a
specific type work.
Subclass:
910
WORK HOLDER FOR PREFABRICATED ROOF TRUSS OR WALL FRAME:
Work holder for positioning elements of a roof truss or a
wall frame in juxtaposed relationship to each other during
their assembly into a unit which is intended for later use in
a building.
Information Products Division -- Contacts
Questions regarding this report should be directed to:
U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231
tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov
Last Modified: 6 October 2000