U.S. PATENT AND TRADEMARK OFFICE
Information Products Division |
U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
Patents classified in a subclass may be accessed by either clicking on
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Classification Index
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(definitions have been obtained from the
Patents ASSIST CD-ROM which
is produced by the U.S. Patent and Trademark Office
Electronic Products Branch)
Class 212
TRAVERSING HOISTS
Class Definition:
Apparatus and methods for lifting a load and shifting it
laterally by an elevating means applied through a support
from which a load engager is suspended and including one of
the following:
A load engager freely suspended by a flexible member.
A bridge* or a boom* on which a load-supporting trolley* is
adapted to move to shift the load laterally.
A trolley,* per se.
A vertically swinging boom* claimed without regard to a
self-loading or unloading feature (e.g., a bucket, fork, or
grab type load engager).
(1) Note. This class is the residual locus for boom sluing
or luffing apparatus and subcombinations thereof which are
otherwise unprovided for.
(2) Note. Subclasses 71 through 345, inclusive, were not
screened during reclassification of the remaining subclasses.
Accordingly, those subclasses preceding subclass 71 will be
found to contain all relevant patents except those claiming
linear hoists.
LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
In the Class Definition above, regarding vertically swinging
booms, apparatus having a vertically swinging boom comprised
of relatively movable segments and disclosed as having a
self-loading load engager (e.g., a backhoe or steam shovel)
are self-loading apparatus and should be considered for Class
414, Material or Article Handling. (Note, however, that in
accordance with the other part of the Class Definition,
regarding load engagers, if the load engager is suspended by
a flexible member, the apparatus is proper for Class 212).
The "lateral shifting" criterion specified in the class
definition requires more than merely supporting a hoist on a
wheeled vehicle to render the hoist ambulant. See search
notes to Class 254 below.
As indicated in the general search notes below, many classes
provide for traversing hoists of specific application, which
generally include but are not limited to those patents which
claim load engager structure peculiar to the specified
application.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
5, Beds, subclass 87.1 for a traversing hoist having
structure peculiarly adapted for the transfer of invalids to
or from a bed.
37, Excavating, 115 for traversing hoist-type excavators
having specifically claimed ground-engaging (digging)
structure.
52, Static Structures (e.g., Buildings), 111 for a rigid
elongated member, a section of which is movable relative to
another section or a base, and mechanical motive means to
effect such movement; subclass 632 for a passive, axially
extensible elongated member; and subclasses 633+ for the
specific structure of an elongated rigid member, per se.
Class 212 is the residual locus for combinations of a
load-handler boom and a sluing or luffing mechanism therefor.
Class 212, subclasses 347+, contain patents to boom
structure, per se, where structure peculiar to load handling
is recited (e.g., cable guide, chafing strip, etc.).
105, Railway Rolling Stock, subclass 163.1 for overhead
crane trucks (trolleys). Hoisting means or structure peculiar
thereto must be claimed for original placement in Class 212.
114, Ships, 365 for life craft handling, particularly
subclasses 368+ for a davit peculiarly adapted for lowering a
life craft.
134, Cleaning and Liquid Contact With Solids, 76 for
cleaning apparatus of the Class 134 type claimed in
combination with a traversing hoist to transfer the work.
187, Elevator, Industrial Lift Truck, or Stationary Lift for
Vehicle, 222 for an industrial lift truck or required
component thereof (e.g., forklift), and subclasses 240+ for
transportable elevator.
254, Implements or Apparatus for Applying Pushing or Pulling
Force, 84 for traversing jacks which lift a load from below
and shift it laterally; subclasses 266+ for hoisting drum
features; and subclasses 389+ for cable guide structure.
414, Material or Article Handling, subclass 143.1 for
ship-charging or discharging apparatus in the nature of a
hoist line bucket; subclass 191 for the charging of a chamber
of a type utilized for a heating function by means of a
driven device for transporting material to and/or into, or
into and within, the chamber, and wherein the device
comprises a traversing hoist having a material-underlying
support or a material-attracting and gripping means;
subclasses 391+ for the combination of a driven device
external of a wheeled, load-transporting type vehicle for
raising or lowering a load which is to be taken from the
vehicle, and the vehicle being unloaded thereby; subclass 399
for the combination of a device external of a wheeled,
load-transporting type vehicle for raising or lowering a load
which is to be moved to the vehicle, and the vehicle being
loaded thereby; subclasses 486+ for a self-loading or
-unloading vehicle having a load-receiving portion which is
pivotable relative to the horizontal, and wherein the vehicle
has means to raise a load above said portion for deposit
thereon or therein, by way of further explanation, a
self-loading or unloading vehicle of that class (414) handles
only a load being moved to or from the vehicle; subclasses
540+ for a self-loading or unloading vehicle having a
load-handling means which raises or lowers a load in a path
which includes vertical, rectilinear movement; subclasses
560+ for traversing hoists combined with additional
material-handling means; subclasses 564, 569, and 571 for
hoists combined with additional material-handling means;
subclass 591 for apparatus having a self-loading grasp
suspended below a boom or bridge for guided vertical
movement; subclasses 592+ for a hoist with loading or
unloading means; and subclasses 680+ for vertically swinging
load supports. Class 414 takes the following patents to
apparatus having means to raise a load and shift it
horizontally:
Those which specifically claim a self-loading engager (e.g.,
bucket, fork, grab, magnet, etc.) which is not suspended by a
flaccid member.
Those which disclose a self-loading engager only and claim a
vertically swinging boom comprised of relatively movable
segments.
Those which claim the vehicle portion of a vehicle-mounted
hoist which is disclosed solely for loading or unloading the
vehicle, with the exception of those patents claiming means
to facilitate assembly and disassembly of the traversing
hoist from the vehicle (Class 212, subclasses 180+).
Those which claim a separate load-transporting vehicle which
is to be loaded by the hoist (as disclosed).
Those which are claimed in combination with additional
handling means not of the Class 212 type.
452, Butchering, subclass 79 and 178 for a handling device
(e.g., traversing hoist) which is peculiar to that art.
483, Tool Changing, generally for a process or apparatus
including means to transfer a tool combined with tool support
or storage means.
GLOSSARY:
BOOM
An elongated member protruding from a mast, crane body,
trolley, or other supporting structure and from which the
load is suspended.
BRIDGE
An elongated member supported horizontally at two spaced
points and which either serves as or bears a track or guide
between the supporting points on which a load-supporting
trolley or a traveling bridge is adapted to move.
TROLLEY
A movable carriage adapted to shift a load laterally by
moving along a track or other guiding means and which
supports or guides a member from which the load is
suspended.
SUBCLASSES
Subclass:
71
OVERHEAD:
This subclass is indented under the class definition.
Miscellaneous traversing hoists comprising means for raising
a load from overhead and traversing it, either in a straight
or curved line.
(1) Note. In these instruments there is no means for
shifting the load laterally in respect to the track or
corresponding element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
223 for hoists having a swinging movement about a fixed
point.
312 for hoists capable of moving the load in two directions
by independent movements.
SEE OR SEARCH CLASS:
104, Railways, subclass 124 for elevated track details of
general application.
242, Winding, Tensioning, or Guiding, 370, particularly
subclasses 390+ for a motor powered reeling device.
Subclass:
72
Cable, ship coaling type:
This subclass is indented under subclass 71. Linear hoists
comprising a cable supported at two points, the distance
between which is subject to variations, a trolley traveling
on the cable, and means for changing the elevation of the
load.
(1) Note. Devices fulfilling the requirements of the above
definition, but comprising some feature whereby the load is
transferred from the hoisting means to the carrying means are
excluded, in accordance with the general scope of the class.
Similar devices comprising means for carrying or receiving
the load, additional to the corresponding elements of the
traversing hoist, are excluded.
SEE OR SEARCH CLASS:
104, Railways, subclass 112 and 180 for track and cable
details.
242, Winding, Tensioning, or Guiding, 410 for
cable-tensioning devices adapted to cooperate with winding
mechanism of general application.
254, Implements or Apparatus for Applying Pushing or Pulling
Force, subclass 274 for apparatus for hauling or hoisting a
load, the apparatus including a driven drum which pulls on or
travels along a cable and a mechanism linked to the drum, or
a rotating element of the drive for generating a control
impulse to rotation-retarding means or motor when the torque
on drum varies.
318, Electricity: Motive Power Systems, 6 for
tension-maintaining type electric motor control system.
414, Material or Article Handling, for various hoisting
mechanisms combined with other article handling means, and
particularly subclass 138 for means to load or unload ships
at sea.
441, Buoys, Rafts, and Aquatic Devices, 80 for ship to ship
or ship to shore cables for transport of personnel
therebetween.
474, Endless Belt Power Transmission Systems or Components,
appropriate subclasses for drive systems using a belt and
pulley, and particularly 101 for belt-tensioning means.
Subclass:
73
Shiftable track:
This subclass is indented under subclass 71. Linear hoists
comprising miscellaneous shiftable tracks.
SEE OR SEARCH THIS CLASS, SUBCLASS:
72 for linear hoists extending from ship to ship or from
ship to shore.
225 for horizontally swinging tracks.
312 for tracks movable bodily in a direction at an angle to
their length to transport the load.
Subclass:
74
Longitudinally movable:
This subclass is indented under subclass 73. Linear hoists
mounted to move bodily in the direction of their length.
SEE OR SEARCH CLASS:
242, Winding, Tensioning, or Guiding, 410 for a cable
tensioning device adapted to cooperate with winding mechanism
of general application.
Subclass:
75
Tilting:
This subclass is indented under subclass 73. Miscellaneous
linear hoists comprising a track, either rigid or flexible,
supported at two points, a trolley carriage or load adapted
to move along the track but not beyond either track support,
and means for elevating a portion of the track to cause the
trolley or load to move along it by gravity.
SEE OR SEARCH CLASS:
104, Railways, subclass 53 for similar devices comprising
some additional element specific to amusement purposes, and
subclass 112 for similar devices comprising a trolley adapted
to move beyond a track support.
186, Merchandising, 4 for similar devices designed to
operate within the limits of a building.
Subclass:
76
Cable:
This subclass is indented under subclass 71. Linear hoists
comprising a cable or cables operated from a fixed source of
power for hoisting and transferring a load.
(1) Note. If a track is used, it may be either rigid or
flexible.
SEE OR SEARCH CLASS:
186, Merchandising, subclass 18 for similar devices designed
to operate within the limits of a building.
226, Advancing Material of Indeterminate Length, appropriate
subclasses for methods of, and apparatus for, feeding
material without utilizing the leading or trailing ends to
effect movement of the material.
Subclass:
77
Load handling:
This subclass is indented under subclass 76. Linear cable
hoists comprising some special means for receiving, engaging,
gripping, discharging, or releasing a load.
Subclass:
78
Draft rope:
This subclass is indented under subclass 77. Load-handling
hoists comprising a tack, a carriage thereon, a hoisting
machine fixed in relation to the track, and one or more
cables extending from the hoisting machine to the carriage
for hoisting and traversing the load, the latter being partly
or wholly suspended during traversing movement from the
hoisting means or the traversing means, or both.
SEE OR SEARCH THIS CLASS, SUBCLASS:
87 and 94+, for similar devices comprising no special means
for receiving, engaging, gripping, discharging, or releasing
the load.
SEE OR SEARCH CLASS:
37, Excavating, 394 for traversing draft-rope hoists
comprising some means for loading of filling a carrying
bucket or scoop by moving it laterally through the material.
Subclass:
79
Dumping:
This subclass is indented under subclass 78. Draft-rope
hoists of the above type comprising a bucket or receptacle
and means for dumping the load.
Subclass:
80
Double tackle:
This subclass is indented under subclass 79. Dumping
draft-rope hoists of the above type in which the receptacle
is supported by two tackles or cables capable of relative
movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
81 for similar devices for operating grab buckets and the
like.
Subclass:
81
Grab:
This subclass is indented under subclass 79. Dumping
draft-rope hoists comprising some form of a grab, such as a
clamshell bucket or grapple.
SEE OR SEARCH THIS CLASS, SUBCLASS:
84 for similar devices in which the grab is attached to the
trolley during traversing movement.
Subclass:
82
Sling:
This subclass is indented under subclass 79. Dumping
draft-rope hoists comprising a sling carrier.
SEE OR SEARCH THIS CLASS, SUBCLASS:
85 for similar devices in which the sling is attached to the
trolley during traversing movement.
Subclass:
83
Load suspension:
This subclass is indented under subclass 77. Load-handling
hoists comprising a track, a carriage thereon, a hoisting
machine fixed in respect to the track, and one or move cables
extending from the hoisting machine to the carriage for
hoisting and traversing the load, and means for supporting
the load directly from the carriage during traversing
movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
97 for similar devices comprising no special means for
receiving, engaging, gripping, discharging, or releasing the
load.
SEE OR SEARCH CLASS:
37, Excavating, appropriate subclasses for similar devices
comprising means for filling a bucket by dragging it through
the material.
Subclass:
84
Grab:
This subclass is indented under subclass 83. Linear
Load-suspension cable hoists comprising some form of grab,
such as a clamshell bucket or grapple.
SEE OR SEARCH THIS CLASS, SUBCLASS:
81 for similar devices in which the load is not attached to
the carriage during traversing movement.
SEE OR SEARCH CLASS:
37, Excavating, subclass 341, 182, and 461 for the structure
of the bucket.
294, Handling: Hand and Hoist-Line Implements, 86.4 for the
structure of the grapple.
Subclass:
85
Sling:
This subclass is indented under subclass 83. Linear cable
load-handling hoist of the load-suspension type comprising a
sling carrier.
SEE OR SEARCH THIS CLASS, SUBCLASS:
82 for similar devices in which the sling is not attached to
the carriage during traversing movement.
SEE OR SEARCH CLASS:
294, Handling: Hand and Hoist-Line Implements, 74 and
82.24+ for slings and releasing hooks, respectively.
Subclass:
86
Automatic stop:
This subclass is indented under subclass 76. Linear cable
hoists comprising means for automatically cutting out the
power when the load has reached a predetermined position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
281 for traversing hoists having a hoisting cable which is
automatically stopped when the load reaches a predetermined
height.
329 for a self-propelled hoisting trolley which is
automatically stopped while traversing.
Subclass:
87
Draft-rope, hoist-rope traverse:
This subclass is indented under subclass 76. Hoists
comprising a track, a carriage thereon, a hoisting machine
fixed in relation to the track, a hoisting cable extending
from the hoisting machine to the carriage for hoisting the
load and traversing the carriage in one direction, the load
being partly or wholly suspended during traversing movement
from the hoisting means, and elements thereof not elsewhere
classifiable.
Subclass:
88
Divided hoist-rope:
This subclass is indented under subclass 87. Linear cable
hoists of the draft-rope, hoist-rope type, comprising a
track, a carriage thereon, and a hoist-rope consisting of two
sections, one extending toward each end of the track, which
serves to traverse the load in both directions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
89 for similar devices in which the hoist-rope is arranged
to positively lower the hook or block.
Subclass:
89
Hook lowering:
This subclass is indented under subclass 87. Hoist-rope
traverse devices of the above type in which there is some
means other than the weight of the parts themselves for
lowering the end of the hoisting rope or for lowering the
fall-block at the loading or unloading point.
SEE OR SEARCH THIS CLASS, SUBCLASS:
96 for similar devices in which the trolley is moved in both
directions by a cable other than the hoisting cable.
99 for similar devices comprising a traveling drum, an
endless cable for rotating the drum, and a clutch between the
cable and drum.
Subclass:
90
Running track:
This subclass is indented under subclass 87. Hoist-rope
traverse systems which include a carriage and a track
therefore, the track serving also as means for traversing the
carriage in one direction.
SEE OR SEARCH THIS CLASS, SUBCLASS:
75 for cable hoists comprising a track, a trolley or load
thereon, and means for raising a portion of the track to
cause the trolley or load to be moved along it by gravity,
and classes indicated in the search notes under subclass 75.
Subclass:
91
Cable return:
This subclass is indented under subclass 87. Draft-rope
linear cable-hoist systems comprising a carriage, a hoisting
cable which moves the carriage along its track in one
direction, and a cable, not a hoisting cable, for moving it
in the opposite direction.
Subclass:
92
Gravity return:
This subclass is indented under subclass 87. Systems of the
type in which the hoisting rope moves the carriage in one
direction, it being returned by gravity.
Subclass:
93
Cable:
This subclass is indented under subclass 92. Systems of the
type comprising a carriage, a hoisting cable which moves the
carriage in one direction, and a gravity-actuated cable for
moving it in the opposite direction.
Subclass:
94
Draft rope, independent traverse:
This subclass is indented under subclass 76. Linear
cable-hoists comprising a track, a carriage thereon, a
hoisting machine fixed in relation to the track, a hoisting
cable extending from the hoisting machine to the carriage,
and means separate from the hoisting cable for traversing the
carriage in both directions, the load being partly, or wholly
suspended during traversing movement from the hoisting
means.
Subclass:
95
Anchored hoist-rope:
This subclass is indented under subclass 94. Systems of the
type comprising a hoist-rope, one end of which is anchored at
some fixed point.
Subclass:
96
Hook lowering:
This subclass is indented under subclass 94. Draft-rope
systems of the type comprising some means other than the
weight of the parts themselves for lowering the end of the
hoisting cable or for lowering the fall-block at the loading
or unloading point.
SEE OR SEARCH THIS CLASS, SUBCLASS:
89 for similar devices in which the trolley is moved in one
direction by the hoisting cable.
99 for similar devices comprising a traveling drum, an
endless cable for operating the drum, and a clutch between
the cable and drum.
Subclass:
97
Load suspension:
This subclass is indented under subclass 76. Linear cable
hoists comprising a track, a carriage thereon, a hoisting
machine fixed in relation to the track, and one or more
cables extending from the hoisting machine to the carriage
for hoisting and traversing the load, and means for
supporting the load directly from the carriage during
traversing movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
323 for a traveling bridge having a hoisting motor fixed in
relation to a track along which a trolley traverses.
SEE OR SEARCH CLASS:
362, Illumination, 359 for similar devices particularly
adapted to shift illuminating devices.
Subclass:
98
Hoist, carry and lower:
This subclass is indented under subclass 97. Miscellaneous
linear cable load-suspension hoists which hoist the load,
automatically secure it to a carriage, traverse the carriage,
and detach the load from the carriage at a second point,
thereby allowing it to be lowered by slacking the
hoist-rope.
SEE OR SEARCH THIS CLASS, SUBCLASS:
110 for similar devices in which the hoisting rope is
secured to the carriage by a rope-gripping device.
115 for similar devices comprising a traveling drum or
sheave, around which the hoisting rope passes, and a pawl and
ratchet cooperating therewith.
Subclass:
99
Running rope:
This subclass is indented under subclass 97. Linear hoists
comprising a hoisting carriage, a track, and endless running
flexible member, and a clutch mounted on the carriage for
intermittently connecting the running member with a member
carried by the carriage to effect the hoisting of the load or
to traverse the carriage.
SEE OR SEARCH THIS CLASS, SUBCLASS:
89 and 96, for similar devices in which the endless flexible
member is permanently connected with the hoisting member.
115 for similar devices comprising a ratchet mechanism for
suspending the load from the carriage during traversing
movement.
312 for traveling cranes comprising similar hoists.
Subclass:
100
Sheave catch:
This subclass is indented under subclass 97. Load-suspension
carriers comprising a catch on the carriage for engaging
directly with and wholly or partly supporting the sheave of a
block and tackle hoisting means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
102 for similar devices which engage with the frame of the
hoisting sheave.
Subclass:
101
Pivoted cable extension:
This subclass is indented under subclass 100. Sheave-catch
carriers comprising a catch consisting of an extension or
continuation of the hoisting cable, which extension is
pivoted to the carriage and upon which the sheave rests while
the load is being traversed.
Subclass:
102
Sheave-frame catch:
This subclass is indented under subclass 97. Load-suspension
carriers comprising a catch on the carriage for engaging with
the sheave frame of a block and tackle hoisting means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
100 for suspending devices which engage directly with the
sheave.
Subclass:
103
Sliding:
This subclass is indented under subclass 102. Sheave-frame
catch carriers, each comprising a catch which has a sliding
movement to engage with and wholly or partly support the
sheave frame.
SEE OR SEARCH THIS CLASS, SUBCLASS:
107 for similar devices comprising a sliding catch which
supports the load by means of a button or stop on the
hoisting cable or by engagement with a link of the hoisting
chain.
Subclass:
104
Pivoted:
This subclass is indented under subclass 102. Sheave-frame
catch carriers comprising a catch which has a swinging
movement to engage with and wholly or partly support the
sheave frame.
SEE OR SEARCH THIS CLASS, SUBCLASS:
97 for pivoted catches which hold the sheave frame on a
support, but do not themselves bear whole or part of the
weight.
108 for similar catches which engage with a stop or button
on the hoist-rope.
Subclass:
105
Double:
This subclass is indented under subclass 104. Sheave-frame
catch carriers comprising two movable pivoted parts, acting
in opposition to each other, for engaging with and supporting
the sheave frame or for retaining the sheave frame upon some
other support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
100 for similar devices which engage directly with the
sheave.
109 for similar devices which engage with a stop or button
on the hoisting rope.
Subclass:
106
Rope catch:
This subclass is indented under subclass 97. Load-suspension
carriers comprising a traveling carriage, a hoisting cable or
chain, a stop, button, or the like, mounted thereon or
forming a part thereof, and means on the carriage for
engaging with and supporting the stop or button.
SEE OR SEARCH THIS CLASS, SUBCLASS:
110 for similar devices in which the rope is held by being
gripped by the suspending means.
Subclass:
107
Sliding:
This subclass is indented under subclass 106. Rope-catch
carriers comprising a catch which has a sliding movement to
and from supporting position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
103 for similar catches which engage with the frame of the
hoisting sheave.
Subclass:
108
Pivoted:
This subclass is indented under subclass 106. Rope-catch
carriers comprising a single pivoted catch for supporting the
rope stop.
SEE OR SEARCH THIS CLASS, SUBCLASS:
104 for similar catches which engage with the frame of a
hoisting sheave.
Subclass:
109
Double:
This subclass is indented under subclass 108. Rope-catch
carriers comprising two pivoted catches which move to
supporting position from opposite sides of the hoisting
rope.
SEE OR SEARCH THIS CLASS, SUBCLASS:
100 for similar devices which engage with a sheave.
105 for similar devices which engage with a sheave frame.
Subclass:
110
Rope grip:
This subclass is indented under subclass 97. Traversing
cable hoists comprising a traveling carriage, a hoisting
rope, and means on the carriage for gripping the rope to
support the load.
SEE OR SEARCH CLASS:
24, Buckles, Buttons, Clasps, etc., 115 for rope grips of
general application.
Subclass:
111
Variable elevation:
This subclass is indented under subclass 110. Rope-grip
carriers in which the hoisting rope may be gripped to the
carriage at different elevations of the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
114 for variable elevation rope-gripping devices which
consists in a member adapted to press against a sheave on the
moving carriage.
Subclass:
112
Carriage release:
This subclass is indented under subclass 111. Miscellaneous
rope-grip variable elevation carriers comprising means,
usually manually operated, for releasing the carriage from a
stop on the track and simultaneously causing the setting of
the rope grip.
SEE OR SEARCH THIS CLASS, SUBCLASS:
114 for similar devices in which the rope is gripped by some
member which coacts with and presses against the surface of a
sheave.
Subclass:
113
Side draft:
This subclass is indented under subclass 111. Variable
elevation rope-grip hoists comprising means independent of
the hoisting cable for traversing the hoisting carriage. The
hoist-rope during the hoisting operation extends at or about
right angles to the track.
SEE OR SEARCH THIS CLASS, SUBCLASS:
87 and 94+, for draft-rope systems comprising particular
arrangements of hoisting and traversing cables.
Subclass:
114
Coacting sheave:
This subclass is indented under subclass 110. Rope-grip
carriers including a traveling carriage, a sheave thereon,
and means acting directly on the sheave to grip the hoisting
rope between it and the sheave.
Subclass:
115
Ratchet sheave:
This subclass is indented under subclass 97. Cable hoists
including a carriage, a hoisting rope passing over a sheave
or drum thereon, and a ratchet mechanism interposed between
the drum or sheave and the carriage, and wholly supporting
the load from the carriage during traversing movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
99 for similar devices comprising an endless operating cable
passing over a drum on the trolley, a hoisting rope connected
with the drum, and a clutch mechanism interposed between the
operating cable and the hoisting cable.
114 for similar devices comprising a pivoted member which
presses the hoisting rope against a sheave and thereby
prevents motion in one direction.
Subclass:
116
Trips, stops, and knockers:
This subclass is indented under subclass 97. Details of the
knocker blocks, stops, and trips which are used in
load-suspension cable hoists for the purpose of tripping the
load-suspending means and allowing the load-hook or support
to be detached from the carriage. They also usually hold the
carriage in a fixed position on the track until the next load
is hoisted and attached to the carriage.
SEE OR SEARCH THIS CLASS, SUBCLASS:
83 and 97+, for load suspension cable hoists having some
special means for receiving, engaging, gripping, discharging,
or releasing a load.
Subclass:
117
Rope carriers:
This subclass is indented under subclass 76. Carriers, for
supporting carriage-moving or load-hoisting ropes of linear
cable hoists to prevent excessive sag between the ends
thereof.
Subclass:
118
Cable stop operated:
This subclass is indented under subclass 117. Rope carriers
which are placed in carrying position partly through contact
with a stop or button fixed on a cable.
SEE OR SEARCH CLASS:
24, Buckles, Buttons, Clasps, etc., 115 for cable stops, per
se.
Subclass:
119
Trolley supported:
This subclass is indented under subclass 117. Rope carriers
normally carried by the hoisting carriage or trolley and
which are disengaged therefrom by means mounted on the
carriage itself, said means being operated by the movement of
the carriage along the track.
SEE OR SEARCH THIS CLASS, SUBCLASS:
118 for similar devices in which the carrier is disengaged
from the trolley by a cable stop or button.
Subclass:
120
Carrier sheave operated:
This subclass is indented under subclass 117. Rope carriers
which are placed in position by the coaction of a traveling
rope and a sheave on the carrier.
Subclass:
121
Permanently spaced:
This subclass is indented under subclass 117. Rope carriers
permanently located at fixed points along the line of the
trackway.
Subclass:
122
Carriage holders, track clamp:
This subclass is indented under subclass 76. Devices
comprising a clamp for gripping the track which secure a
hoisting carriage of a cable hoist in a fixed position during
hoisting or lowering operation and thereafter release it for
traveling movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
78 83+, 87+, 94+, and 97+, for this type of carriage holder
in combination with other elements.
SEE OR SEARCH CLASS:
188, Brakes, subclass 43 and 44 for track-clamping devices
of general application.
Subclass:
123
Pulley changes:
This subclass is indented under subclass 76. Details of
cable hoists comprising a track, a pulley, pulley supports at
two points along the track, and means for changing or
shifting the pulley from one support to the other.
Subclass:
166
CLOSURE REMOVER:
This subclass is indented under the class definition.
Apparatus comprising means specifically adapted for raising a
door or other closure from above and shifting it laterally.
SEE OR SEARCH CLASS:
49, Movable or Removable Closures, subclass 210 and 324+ for
a hoist permanently attached to the closure.
110, Furnaces, subclass 176 for a door or cover lifter
claimed in combination with a furnace or soaking pit.
202, Distillation: Apparatus, 262 for door or closure
lifters claimed in combination with coke ovens.
414, Material or Article Handling, subclass 684.3 for door
removers which include a vertically swinging door-supporting
member.
Subclass:
167
WITH HAUL-IN LINE:
This subclass is indented under the class definition.
Apparatus wherein an elongated flexible means is provided in
addition to the load-supporting flexible member for pulling
the load horizontally across a supporting surface to the
vicinity of the load support, the load contacting the
supporting surface as it is pulled to the load support.
SEE OR SEARCH CLASS:
414, Material or Article Handing, subclass 538 for a
self-loading vehicle provided with a cable for hauling the
load to the vehicle; subclass 569 for a self-loading,
vertically swinging load support combined with a hoist or a
drag line to hoist or drag the load to the vicinity of the
vertically swinging load support; and subclass 571 for a
guideway and a cable for hauling a load along the guideway.
Subclass:
168
AND MEANS TO PROJECT LOAD ENGAGER BEYOND END OF BOOM:
This subclass is indented under the class definition.
Apparatus wherein means are provided for propelling or
positioning a load-engaging means suspended by flexible cable
beneath a boom* outwardly from its position under the boom
toward the load.
Subclass:
169
GROUND WHEEL OPERATED:
This subclass is indented under the class definition.
Apparatus including a wheel which is caused to contact a
surface upon which the apparatus is supported and which
rotates in response to movement of the apparatus across the
surface, and wherein power transmission means is provided to
utilize the wheel's rotational motion to operate the hoist
(e.g., hoisting drum, boom*, trolley*, etc.).
Subclass:
170
HAVING CLUTCH OR VARIABLE SPEED TRANSMISSION:
This subclass is indented under the class definition.
Apparatus including either (a) a selectively engageable drive
between a motor and a load moving mechanism adapted to be
driven by the motor, or (b) means to vary the ratio of the
speed at the output of a motor to the speed at which a
load-moving mechanism is driven by the motor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
276 for a clutch combined with means to disengage the clutch
in response to a predetermined randomly occurring condition.
SEE OR SEARCH CLASS:
254, Implements or Apparatus for Applying Push ing or Pulling
Force, subclass 301, 309, 317+, 346+, and 365+ for hoist
having a clutch.
Subclass:
171
Traveling bridge:
This subclass is indented under subclass 170. Apparatus
comprising a bridge* supported above a surface for
translational movement over the surface, and wherein the
selectively engageable coupling or ratio varying means is
provided between a motor and a mechanism for driving the
bridge or a mechanism thereof.
Subclass:
172
Power takeoff:
This subclass is indented under subclass 170. Apparatus
comprising a selectively engageable drive connection between
the motor of a motor-driven vehicle and a load-moving
mechanism of a traversing hoist.
Subclass:
173
Variable speed transmission:
This subclass is indented under subclass 170. Apparatus
including means to vary the ratio of the speed at the output
of a motor to the speed at which a load moving mechanism is
driven by the motor.
SEE OR SEARCH CLASS:
254, Implements or Apparatus for Applying Pushing or Pulling
Force, subclass 187.6 for hoisting drums having a variable
speed drive.
Subclass:
174
Including means to selectively couple plural hoist functions
to common power shaft:
This subclass is indented under subclass 170. Apparatus
including means by which the working member of a motor may be
engaged and disengaged with each of a plurality of
load-moving mechanisms.
Subclass:
175
HAVING MEANS FACILITATING ASSEMBLY OR DISASSEMBLY:
This subclass is indented under the class definition.
Apparatus including means to permit the ready removal or
replacement of either (a) an element or subassembly of the
apparatus from or on the remainder thereof, or (b) the entire
traversing hoist from or on a supporting structure.
SEE OR SEARCH CLASS:
414, Material or Article Handling, subclass 686 for a
self-loading (e.g., shovel or fork type) handler having means
to facilitate attachment of a vertically swinging boom* to a
vehicle.
Subclass:
176
Of sectional vertical support from boom:
This subclass is indented under subclass 175. Apparatus
including an elongated vertically disposed boom* support
comprising a plurality of serially arranged segments
connected longitudinally in end-to-end fashion, and wherein
the connections between the segments permit the ready
assembly or disassembly of one segment to or from another.
SEE OR SEARCH THIS CLASS, SUBCLASS:
199 for climbing cranes wherein the vertical support
comprises a building being erected by the crane.
Subclass:
177
Of boom sections:
This subclass is indented under subclass 175. Apparatus
including a boom* having means to permit the ready removal or
replacement of a portion of the boom from another portion.
(1) Note. Removal of a connector or locking means between
boom sections to enable the sections to be pivoted or
telescoped relative to each other is not considered to be
disassembly.
SEE OR SEARCH THIS CLASS, SUBCLASS:
299 for foldable or collapsible booms.
Subclass:
178
Of counterweight from hoist:
This subclass is indented under subclass 175. Apparatus
including a mass specifically employed to offset the weight
of the load and means to permit the ready removal or
replacement of the mass from or on the load support.
Subclass:
179
Of traversing hoist from support:
This subclass is indented under subclass 175. Apparatus
including means to permit the ready removal or replacement of
a traversing hoist from or on a supporting structure.
Subclass:
180
Vehicle support:
This subclass is indented under subclass 179. Apparatus
wherein the supporting structure is provided with
ground-engaging means to render it ambulant.
Subclass:
181
And having motor to swing boom:
This subclass is indented under subclass 180. Apparatus
having a pivotally mounted boom* and power means to pivot the
boom.
Subclass:
195
HAVING COUNTERWEIGHT OR COUNTERBALANCING MEANS:
This subclass is indented under the class definition.
Apparatus including (a) a mass specifically employed to
offset the weight of the load, or (b) a dynamic device for
exerting a force in opposition to that exerted by the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
178 for apparatus having a removable counterweight.
279 for apparatus having means to regulate (e.g., position)
a counterweight or counterbalancing means in response to a
sensed condition.
SEE OR SEARCH CLASS:
254, Implements or Apparatus for Applying Pushing or Pulling
Force, 266 for nontraversing hoists having a counterbalance
feature.
414, Material or Article Handling, subclass 673 and 719 for
counterweight features for other load handlers.
Subclass:
196
Counterweight movable relative to load support:
This subclass is indented under subclass 195. Apparatus
wherein the mass is mounted for movement with respect to the
load support (e.g., boom*) to compensate for varying tilting
effects of the load on the apparatus.
(1) Note. Pivotal movement of a boom with respect to a base
carrying a stationary counterweight will not in itself cause
classification in this subclass. The counterweight itself
must be moved relative to its supporting structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
279 for apparatus having means to move a counterweight in
response to a sensed condition.
Subclass:
197
Along rectilinear path:
This subclass is indented under subclass 196. Apparatus
wherein the mass is mounted for movement along a straight
line with respect to the support above the load.
Subclass:
198
On wheeled carriage:
This subclass is indented under subclass 197. Apparatus
wherein the mass is either provided with wheels or is carried
by a wheeled vehicle, and is adapted to travel along a
guideway provided with the apparatus.
Subclass:
199
HAVING BOOM SHIFTABLE VERTICALLY ALONG A LINEAR PATH:
This subclass is indented under the class definition.
Apparatus Including a boom* and structure supporting the boom
which permits up or down translational movement of the entire
boom along a rectilinear path.
(1) Note. A boom movable along its longitudinal axis to
change its effective length (i.e., moment arm) is not
considered to be a vertically shifting boom on that basis
alone.
SEE OR SEARCH THIS CLASS, SUBCLASS:
176 for booms which are moved vertically on a support
comprised of longitudinal sections connected end-to-end.
179 for hoists which are moved vertically by selective
assembly of the hoist at different heights on a separate
structure (e.g., building, pole, etc.).
230 for a horizontally swinging boom which is movable along
its longitudinal axis relative to a support to increase its
effective length.
295 for a vertically extending boom support which is
collapsed into a transport or nonuse position.
314 for a vertically shiftable traveling bridge*.
SEE OR SEARCH CLASS:
254, Implements or Apparatus for Applying Pushing or Pulling
Force, 385 for other vertically adjustable derricks which
have no means for traversing the load.
Subclass:
200
Movable along nonvertical rectilinear path:
This subclass is indented under subclass 199. Apparatus
wherein the boom* is mounted for movement along an inclined
path and the up and down movement of the boom is the vertical
component of motion along the inclined path.
Subclass:
201
Length of hoisting cable between boom and load decreases
automatically as boom is raised:
This subclass is indented under subclass 199. Apparatus
wherein the load is suspended beneath the boom* by an
elongated flaccid strand and means are provided whereby the
strand is drawn in toward the boom as the boom moves
upwardly.
Subclass:
202
Vertically spaced fastening means along boom support:
This subclass is indented under subclass 199. Apparatus
wherein the structure supporting the boom* is provided with a
plurality of securing means spaced vertically along the
structure whereby the boom is supported at a selected one of
a plurality of positions on the support.
Subclass:
203
Fluid actuated:
This subclass is indented under subclass 199. Apparatus
wherein means are provided to move the boom* up or down
relative to its support by application of a liquid or gas
under pressure.
SEE OR SEARCH CLASS:
254, Implements or Apparatus for Applying Pushing or Pulling
Force, 93 for fluid-actuating jacks.
Subclass:
204
By mounting on vertically extensible support:
This subclass is indented under subclass 199. Apparatus
wherein the structure supporting the boom* comprises a
plurality of interconnected segments movable longitudinally
with respect to one another to increase the length of the
support and thereby raise the boom supported thereon.
SEE OR SEARCH THIS CLASS, SUBCLASS:
296 for a boom support comprising a plurality of telescoping
segments and which is collapsible to a nonuse position.
Subclass:
223
HAVING HORIZONTALLY SWINGING BOOM OR BRIDGE:
This subclass is indented under the class definition.
Apparatus comprising a boom* or a bridge* which is mounted to
a support for movement about a vertical axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
280 for means to stop the horizontal rotation of a boom as a
result of its movement beyond a predetermined point or its
proximity to a powerline.
286 for apparatus including means to cyclically reverse the
direction of boom rotation.
317 for a traveling bridge having a horizontally swinging
boom.
347 for traversing hoist boom structure, per se.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), subclass 114 for
miscellaneous elongated members which are moved about an axis
normal to a supporting base by mechanical motive means. A
horizontally rotatable boom is classified in Class 212 when
disclosed as traversing hoist structure.
414, Material or Article Handling, subclass 591 for a
horizontally swinging boom from which is suspended a grab
mounted for guided vertical movement; and subclass 744.1 for
a horizontally swinging load support having no means to raise
the load.
Subclass:
224
Boom mounted for guided horizontal translation (e.g., trolley
mounted):
This subclass is indented under subclass 223. Apparatus
comprising a boom* and means on the boom or the boom support
for engaging a guideway whereby the boom translates along the
guideway.
(1) Note. The guideway must be of a discrete length, i.e.,
a railway car having a boom thereon is classified below as an
ambulant apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
249 for other ambulant horizontally swinging booms.
317 for a horizontally swinging boom carried on a trolley
which in turn moves along a traveling bridge.
Subclass:
225
Having trolley thereon:
This subclass is indented under subclass 223. Apparatus
comprising a bridge* or a boom* having a track or guideway
along which a load-supporting trolley* is adapted to move.
SEE OR SEARCH THIS CLASS, SUBCLASS:
71 for an overhead hoist having a trolley, or a trolley, per
se.
242 for a trolley carried by a vertically swinging boom.
312 for a trolley carried by a traveling bridge.
Subclass:
226
Having vertical support remote from pivot (i.e., swinging
bridge):
This subclass is indented under subclass 225. Apparatus
including a bridge* pivotally mounted for horizontally
swinging movement at one of the two spaced supporting points,
and wherein the other supporting point either (a) rides over
a horizontally extending vertical support, or (b) comprises a
leg fixed to the bridge at one end and is provided with means
to facilitate its movement over a surface or guideway at the
other end.
SEE OR SEARCH THIS CLASS, SUBCLASS:
312 for a traveling bridge which follows a circular path.
Subclass:
227
And vertically swinging:
This subclass is indented under subclass 225. Apparatus
wherein the boom* or bridge* is also capable of pivotal
movement about a horizontal axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
257 for a trolley carried by a boom which swings only
vertically.
Subclass:
228
And means acting independently of hoist mechanism to shift
trolley:
This subclass is indented under subclass 225. Apparatus
including means other than load-lifting means for moving the
trolley* along the guideway.
Subclass:
230
Extensible by movement of boom or boom segment along
longitudinal axis thereof:
This subclass is indented under subclass 223. Apparatus
including a horizontally swinging boom* and wherein either
(a) means are provided which permits translational movement
of the boom along its longitudinal axis and relative to the
boom-supporting structure, or (b) the boom consists of a
plurality of interconnected segments slidably related to one
another whereby the effective length of the boom may be
changed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
264 for a vertically swinging extensible boom.
299 for booms or masts which are collapsible for transport
or storage.
348 for extensible boom structure, per se.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), 111 for other
extensible shaft structure combined with mechanical motive
means to extend the shaft; and subclass 632 for an axially
extensible shaft, per se.
Subclass:
231
And vertically swinging:
This subclass is indented under subclass 230. Apparatus
wherein the boom* is also capable of pivotal movement about a
horizontal axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
168 for a boom extension which is employed to project a grab
beyond the edge of the boom but is retracted before the load
is lifted.
264 for an extensible boom claimed as being swingable only
in a vertical plane.
296 for an extensible boom supporting tower which is pivoted
vertically to a horizontal position for transportation but
remains vertical during use.
300 for a vertically swinging boom having sections which are
pivoted together for collapsing the boom to a transport or
nonuse position.
Subclass:
232
And vertically swinging:
This subclass is indented under subclass 223. Apparatus
wherein the boom* is also capable of pivotal movement about a
horizontal axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
225 for apparatus having a boom claimed as being swingable
about a horizontal axis only.
310 for a ship mounted horizontally and vertically swinging
boom.
SEE OR SEARCH CLASS:
254, Implements or Apparatus for Applying Pushing or Pulling
Force, 120 for a load-lifting lever.
414, Material or Article Handling, 687 for a shovel or fork
type load handler having a boom swingable horizontally and
vertically.
Subclass:
233
Plural booms:
This subclass is indented under subclass 232. Apparatus
including second boom* mounted for movement about vertical
and horizontal axes and having its own load engager or
flexible member suspended therefrom.
(1) Note. Flexible members of the first and second booms
may support a common load or load handler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
311 for plural, ship-mounted horizontally and vertically
swinging, cable-actuated booms.
Subclass:
234
With adjacent load-supporting rack:
This subclass is indented under subclass 232. Apparatus
wherein a supporting means is provided adjacent the boom* and
adapted to receive the load therefrom.
SEE OR SEARCH CLASS:
414, Material or Article handling, subclass 496 for
self-loading vehicles having transversing hoists; and
subclasses 446, 498, and 608 for material handlers having a
separable load-supporting rack.
Subclass:
235
Including means for sluing boom as it is swung vertically:
This subclass is indented under subclass 232. Apparatus
wherein means are provided for simultaneously swinging the
boom* about a vertical axis in response to the boom's
movement about a horizontal axis.
Subclass:
236
Including plural actuating means converging toward boom tip
to effect both horizontal and vertical swinging:
This subclass is indented under subclass 232. Apparatus
including two elongated members, each of which engages the
boom* adjacent the point from which the load is suspended,
and diverges to engage either the boom support or points
fixed relative thereto, wherein means are provided to
selectively change the length of the members to pivot the
boom about both horizontal and vertical axes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
310 for a ship-mounted derrick swung horizontally and
vertically by flexible cables.
Subclass:
237
Including means to swing boom vertically:
This subclass is indented under subclass 232. Apparatus
including a motor, power transmission, or a force multiplying
linkage for swinging the boom* about a horizontal axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
260 for means to swing a boom vertically, with no horizontal
swinging claimed.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), 116 for an
elongated rigid member movable relative to a supporting base
and mechanical motive means for applying power to affect such
movement.
Subclass:
238
Fluid-actuated ram:
This subclass is indented under subclass 237. Apparatus
wherein the motor comprises a relatively reciprocating piston
and cylinder actuated by fluid pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
261 for a fluid-actuated vertically swinging boom where no
horizontal swinging is claimed.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), subclass 115 for
miscellaneous elongated members which are pivoted relative to
a supporting base by a fluid pressure actuated mechanism.
Subclass:
239
Flexible cable:
This subclass is indented under subclass 237. Apparatus
wherein the means for swinging the boom* vertically includes
a greatly elongated strand of flaccid material.
Subclass:
240
Having passage for luffing cable through boom supporting
member:
This subclass is indented under subclass 239. Apparatus
wherein the support on which the boom* is swingably mounted
is provided with a passageway through which the strand passes
to swing the boom vertically.
SEE OR SEARCH THIS CLASS, SUBCLASS:
252 for a boom support having a passage for a hoist cable.
SEE OR SEARCH CLASS:
254, Implements or Apparatus for Applying Pushing or Pulling
Force, 389 for hoisting cable guides.
Subclass:
241
Human or animal powered:
This subclass is indented under subclass 239. Apparatus
wherein means are provided by which a person or animal may
apply a force to the strand of flaccid material to swing the
boom vertically.
SEE OR SEARCH THIS CLASS, SUBCLASS:
249 for a human- or animal-powered horizontally swinging
boom.
263 for a human- or animal-powered vertically swinging
boom.
Subclass:
242
Having specific engager for load:
This subclass is indented under subclass 232. Apparatus
wherein significance is attributed to a particular device for
engaging and retaining the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
251 for a horizontally swinging boom having a specific type
load handler.
259 for a vertically swinging boom with a specific type of
load handler.
326 for a gantry having a specific type load handler.
327 for a traveling bridge having a specific type of load
handler.
SEE OR SEARCH CLASS:
294, Handling: Hand and Hoist-Line Implements, appropriate
subclasses for a specific load engager, per se.
414, Material or Article Handling, appropriate subclasses for
handlers of that class having specific types of load
engagers; particularly subclass 186, 225+, 618+, 729+, 751.1,
and 792.9 for grippers or grabs; and subclasses 444+ and 785
for load engager structure in general.
Subclass:
243
Grab:
This subclass is indented under subclass 242. Apparatus
wherein the load handler comprises a plurality of relatively
movable members for gripping the load.
SEE OR SEARCH CLASS:
294, Handling: Hand and Hoist-Line Implements, appropriate
subclasses for a grab, per se.
414, Material or Article Handling, subclass 186, 225.01+,
618+, 729+, 751.1, and 792.9 for handlers of that class
having a gripper or grab (e.g., load-handling apparatus
having a swinging boom* and a grab directly connected to the
boom, rather than by a cable).
Subclass:
245
And means to swing boom horizontally:
This subclass is indented under subclass 223. Apparatus
including a motor, power transmission, or force multiplying
linkage to move the boom* about a vertical axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
276 for a motor for swinging a boom horizontally and which
is activated or regulated in response to a sensed random
condition.
280 for a motor for swinging a boom horizontally which is
stopped or disable in response to a sensed random condition.
284 for means, such as a switch or valve, for manually or
cyclically controlling the flow of energy to a sluing motor.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), subclass 114 for
miscellaneous elongated members which are moved about an axis
normal to a supporting base by mechanical motive means. A
horizontally rotatable boom is classified in Class 212 when
disclosed as traversing hoist structure.
Subclass:
246
Including flexible member driving gear or pulley having axis
collinear with boom pivot:
This subclass is indented under subclass 245. Apparatus
including a member of flaccid material which partially
encircles a disc or annular member having an axis of rotation
on a vertical line defining the axis about which the boom*
swings, and means are provided to engage and drive the
endless or elongated member whereby the boom is swung
horizontally about said axis.
Subclass:
247
Gear drive:
This subclass is indented under subclass 245. Apparatus
wherein the means to swing the boom* horizontally comprises a
power transmission which includes a disc or annular member
having a tooth surface which is interdigitated with a second
toothed member whereby movement of one of the members causes
movement of the other member.
Subclass:
248
Including rack or worm:
This subclass is indented under subclass 247. Apparatus
wherein the second toothed member comprises either (a) a
rectangular member having teeth formed across a longitudinal
face and which is reciprocated to cause rotation of the disc
or annular member, or (b) an elongated cylindrical member
having helical teeth on its periphery and which is rotated
about its longitudinal axis to cause rotation of the disc or
annular member.
Subclass:
249
Human or animal powered:
This subclass is indented under subclass 245. Apparatus
wherein means are provided by which a person or animal may
apply a force to swing the boom* horizontally.
SEE OR SEARCH THIS CLASS, SUBCLASS:
241 for a horizontally and vertically swinging boom having
means by which a person or animal may swing the boom
vertically.
263 for a human or animal powered vertically swinging boom.
Subclass:
250
Having fluid ram directly actuating load cable or sheave
therefor:
This subclass is indented under subclass 223. Apparatus
including a relatively reciprocating piston and cylinder
which are actuated by fluid pressure and are employed to lift
the load by directly connecting the piston or cylinder to
either the flexible member or a pulley about which the
flexible member is entrained.
Subclass:
251
Having specific engager for load:
This subclass is indented under subclass 223. Apparatus
wherein significance is attributed to a particular device for
engaging and retaining the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
242 for a horizontally and vertically swinging boom having a
specific type of load handler.
259 for a vertically swinging boom having a specific type of
load handler.
326 for a gantry having a specific type of load handler.
327 for a traveling bridge having a specific type of load
handler.
SEE OR SEARCH CLASS:
294, Handling: Hand and Hoist-Line Implements, appropriate
subclasses for a specific load engager, per se.
414, Material or Article Handling, appropriate subclasses for
handlers of that class having specific types of load
engagers; particularly subclass 186, 225.01+, 618+, 729+,
751.1, and 792.9 for grippers or grabs; and subclasses 444+
and 785 for load engager structure in general.
Subclass:
252
Having passage for hoist cable through boom supporting
members:
This subclass is indented under subclass 223. Apparatus
provided with an elongated strand of flaccid material which
is drawn in or payed out to raise or lower the load with
respect to the boom*, and wherein the support on which the
boom is swingably mounted is provided with a passageway
through which the strand passes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
240 for a boom support having a passage for a luffing
cable.
SEE OR SEARCH CLASS:
254, Implements or Apparatus for Applying Pushing or Pulling
Force, 389 for hoisting cable guides.
Subclass:
253
Having specific bearing structure:
This subclass is indented under subclass 223. Apparatus
wherein significance is attributed to that structure at or
adjacent the immediate area of contact between the boom* and
the support on which the boom is swingably mounted.
Subclass:
255
HAVING VERTICALLY SWINGING BOOM:
This subclass is indented under the class definition.
Apparatus comprising an elongated member pivoted for movement
about a horizontal axis to a mast, crane body, trolley*, or
other supporting structure and projecting therefrom to
support or guide a flexible member from which the load is
suspended.
SEE OR SEARCH THIS CLASS, SUBCLASS:
232 for a vertically swinging boom which is additionally
mounted for horizontal movement.
299 for apparatus provided with specific means which allows
the boom to collapse to a position for transport or storage.
317 for a bridge-mounted trolley having a vertically
swinging boom thereon.
SEE OR SEARCH CLASS:
114, Ships, 373 for similar devices for raising and lowering
boats.
414, Material or Article Handling, 680 for residual
vertically swinging load supports.
Subclass:
256
And compensating means to maintain horizontal movement of
load:
This subclass is indented under subclass 255. Apparatus
wherein means are provided to keep the load at the same
vertical distance above a surface as it is moved across the
surface by the vertically swinging boom*.
Subclass:
257
And trolley:
This subclass is indented under subclass 255. Apparatus
wherein the vertically swinging boom* serves as or bears a
separate track or guide on which a load-supporting trolley*
is adapted to move.
SEE OR SEARCH THIS CLASS, SUBCLASS:
225 for a horizontally and vertically swinging boom having a
trolley thereon.
346 for trolley structure, per se.
Subclass:
258
Protruding laterally from vehicle:
This subclass is indented under subclass 255. Apparatus
wherein the boom* is pivotally carried on a vehicle for
swinging movement in a vertical plane which is substantially
perpendicular to the direction in which the vehicle normally
moves.
Subclass:
259
Having specific engager load:
This subclass is indented under subclass 255. Apparatus
wherein significance is attributed to a particular device for
engaging and retaining the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
242 for a horizontally and vertically swinging boom* having
a specific type of load handler.
251 for a horizontally swinging boom having a specific type
of load handler.
326 for a gantry having a specific type of load handler.
327 for a traveling bridge* having a specific type of load
handler.
SEE OR SEARCH CLASS:
294, Handling: Hand and Hoist-Line Implements, appropriate
subclasses for a specific load engager, per se.
414, Material or Article Handling, appropriate subclasses for
handlers of that class having specific types of load
engagers; particularly subclass 186, 225.01+, 618+, 729+,
751.1, and 792.9 for grippers or grabs; and subclasses 444+
and 785 for load engager structure in general.
Subclass:
260
Having means to swing boom vertically:
This subclass is indented under subclass 255. Apparatus
including a motor, power transmission, or a force multiplying
linkage for swinging the boom* about a horizontal axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237 for a horizontally and vertically swinging boom and
including means to swing the boom vertically.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), 116 for an
elongated member tiltable relative to supporting base and
mechanical motive means for applying power to effect such
movement.
Subclass:
261
Fluid actuated ram:
This subclass is indented under subclass 260. Apparatus
wherein the motor comprises a relatively reciprocating piston
and cylinder actuated by fluid pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
238 for similar structure in a horizontally and vertically
swinging boom.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), subclass 115 for
miscellaneous elongated members which are pivoted relative to
a supporting base by a fluid pressure actuated mechanism.
Subclass:
262
Flexible cable:
This subclass is indented under subclass 260. Apparatus
wherein the means for swinging the boom* vertically includes
a greatly elongated strand of flaccid material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
239 for corresponding structure for a horizontally and
vertically swinging boom.
Subclass:
263
Human or animal powered:
This subclass is indented under subclass 262. Apparatus
wherein means are provided by which a person or animal may
apply a flexible force to the cable to swing the boom*
vertically.
SEE OR SEARCH THIS CLASS, SUBCLASS:
241 for similar apparatus having booms which additionally
swing about a vertical axis.
Subclass:
264
Extensible by movement of boom or boom segment along
longitudinal axis thereof:
This subclass is indented under subclass 255. Apparatus
including a vertically swinging boom* and wherein either (a)
means are provided which permits translational movement of
the boom along its longitudinal axis and relative to the
boom-supporting structure, or (b) the boom consists of a
plurality of interconnected segments slidably related to one
another whereby the effective length of the boom may be
change.
SEE OR SEARCH THIS CLASS, SUBCLASS:
231 for a horizontally and vertically swinging extensible
boom.
299 for booms collapsible for transport or storage.
348 for extensible boom structure, per se.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), 111 for other
extensible shaft structure.
Subclass:
270
METHODS:
This subclass is indented under the class definition.
Process including a step of lifting a load and shifting it
laterally.
Subclass:
271
MISCELLANEOUS:
This subclass is indented under the class definition.
Subject matter which is not provided for under any of the
preceding subclasses.
Subclass:
272
HAVING MEANS TO PREVENT OR DAMPEN LOAD OSCILLATIONS:
This subclass is indented under the class definition.
Subject matter including means to arrest or reduce the
periodic vertical or swinging movement of the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
308 for oscillations of ship mounted crane loads.
SEE OR SEARCH CLASS:
254, Implements or Apparatus for Applying Pushing or Pulling
Force, subclass 900 for winches with wave compensation
damping.
Subclass:
273
Antisway (i.e., horizontal movements):
This subclass is indented under subclass 272. Subject matter
wherein means are provided to arrest or reduce the undesired
swinging movement about an axis orthogonal to a vertical
axis.
Subclass:
274
By triangulation of load cables:
This subclass is indented under subclass 273. Subject matter
wherein the arresting or movement reducing means comprise at
least two load lifting cables or cable portions arranged to
diverge or converge at the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
167 for an in-haul line extending to the load.
236 and 310, for cables extending to the boom tip for
luffing and slewing.
Subclass:
275
By cyclic control of trolley acceleration or deceleration:
This subclass is indented under subclass 273. Subject matter
including a load depending from a trolley with a traveling
velocity and means to control the velocity of the trolley to
reduce load oscillations.
SEE OR SEARCH THIS CLASS, SUBCLASS:
98 and 286, for cyclic movements of the trolley which
include raising and lowering the load automatically.
Subclass:
276
HAVING RANDOM CONDITION SENSOR COMBINED WITH AN INDICATOR OR
ALARM OR CONTROLLING MEANS OR DISABLING MEANS:
This subclass is indented under the class definition.
Subject matter including means for detecting the random
occurrence of a predetermined situation and releasing,
terminating, or modifying a flow of energy which in turn
either produces a visually or audibly perceptible
manifestation of the event or regulates a controlling or
disabling means (e.g., motor, valve, solenoid, etc.).
(1) Note. The term "random" excludes cyclic or repetitive
operations or movement.
SEE OR SEARCH CLASS:
340, Communications: Electrical, subclass 685 for a
condition-responsive indicating system for a crane wherein no
structural details of the crane are recited.
Subclass:
277
Senses crane tilt (e.g., outrigger sensors):
This subclass is indented under subclass 276. Subject matter
wherein the apparatus is a crane and the detecting means is
responsive to movement of the crane about a horizontal axis.
SEE OR SEARCH CLASS:
200, Electricity, Circuit Makers and Breakers, subclass 61.52
for a tilt-responsive switch, per se.
Subclass:
278
Means determining overloading produced by load (e.g., strain
gauges):
This subclass is indented under subclass 276. Subject matter
comprising means which directly determine overloading, such
as strain gauges, or means to compute mechanically or
electronically, the overturning moment of the hoist using two
or more sensed variables.
SEE OR SEARCH THIS CLASS, SUBCLASS:
276 277, 279, and 280 for the specific individual variables.
SEE OR SEARCH CLASS:
254, Implements or Apparatus for Applying Pushing or Pulling
Force, subclasses 272-274 for overload sensors on winches.
Subclass:
279
Sensor regulates counterweight or counterbalancing means:
This subclass is indented under subclass 276. Subject matter
wherein the detecting means and the controller governs either
(a) the movement of a mass employed to offset the weight of
the load or (b) operation of a dynamic device to exert a
force in opposition to that exerted by the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
195 for other apparatus having a counterweight or
counterbalancing means.
Subclass:
280
Boom movement stops responsive to overtravel or proximity to
powerline:
This subclass is indented under subclass 276. Subject matter
wherein stopping or disabling occurs in response to either
(a) the pivotal movement or telescopic extension of a boom*
beyond a predetermined limit or (b) the electromagnetic field
of an adjacent electrical power transmission wire.
SEE OR SEARCH CLASS:
192, Clutches and Power-Stop Control, 139 for a stop
mechanism (residual or of general application) in which the
drive of a machine is discontinued at the limit of travel.
324, Electricity: Measuring and Testing, appropriate
subclasses for a magnetic or electric field sensor, per se.
Subclass:
281
Hoisting stops upon load being raised to a predetermined
position (e.g., anti-two blocking):
This subclass is indented under subclass 276. Subject matter
wherein the raising or lowering of a load lifting cable is
halted in response to the load being moved to a predetermined
position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
280 for boom raising or lowering to a predetermined
position.
SEE OR SEARCH CLASS:
254, Implements or Apparatus for Applying Pushing or Pulling
Force, subclass 269 for winches with stop means on the
hoistrope.
Subclass:
282
WITH MECHANICAL INDICATOR:
This subclass is indented under the class definition.
Subject matter combined with mechanically activated means for
producing a visual manifestation of a property or
occurrence.
SEE OR SEARCH THIS CLASS, SUBCLASS:
276 for an indicator which is activated or regulated by a
flow of energy in response to a sensed condition, the sensor
being claimed.
SEE OR SEARCH CLASS:
116, Signals and Indicators, appropriate subclasses for a
mechanical indicator or alarm provided on a nominaly recited
crane. See the main definition of Class 116, section IV, for
the general line.
Subclass:
283
With weight indicator:
This subclass is indented under subclass 282. Subject matter
wherein means are provided to indicate the mass of the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
278 for an apparatus which is controlled in response to a
moment calculator or overload condition..
SEE OR SEARCH CLASS:
177, Weighing Scales, subclass 147 for weighing scales
combined with a hoist for merely loading or unloading the
scales.
414, Material or Article Handling, subclass 21 for weighing
during load handling.
Subclass:
284
WITH MOTOR CONTROL:
This subclass is indented under the class definition.
Subject matter comprising means to initiate, terminate, or
modify a flow of energy to control a power means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
276 for means to initiate or regulate (e.g., cutoff) the
flow of energy to a motor in response to a randomly occurring
sensed condition.
Subclass:
285
Remote control or at dual control positions:
This subclass is indented under subclass 284. Subject matter
wherein the means for controlling the power means is (a)
movable to or provided at a location substantially removed
from the remainder of the apparatus or (b) located at two
separate control stations.
SEE OR SEARCH CLASS:
182, Fire Escape, Ladder, or Scaffold, subclass 148 for a
"cherry picker" type crane having control cables passing
through the boom* whereby movement of the boom may be
controlled by a person carried thereby.
Subclass:
286
Cyclic operation:
This subclass is indented under subclass 284. Subject matter
wherein the power means is controlled in response to a
predetermined periodic event.
SEE OR SEARCH THIS CLASS, SUBCLASS:
98 for an overhead cyclic hoist.
275 for cyclic control of trolleys.
Subclass:
287
Manual fluid valve actuator:
This subclass is indented under subclass 284. Subject matter
including means adapted to be manipulated by an operator to
stop or start the flow of a working fluid to a fluid motor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
284 for a manually actuated fluid pump for supplying
pressure fluid to a motor.
SEE OR SEARCH CLASS:
91, Motors: Expansible Chamber Type, appropriate subclasses
for a reciprocating or oscillating fluid motor combined with
means for controlling the flow of fluid to the motor.
251, Valves and Valve Actuation, appropriate subclasses for a
valve or an actuator therefore, per se.
Subclass:
288
Plural fluid motors:
This subclass is indented under subclass 287. Subject matter
including multiple power means which convert the energy of a
working fluid to mechanical movement of a working member, the
flow of working fluid to each power means being controlled by
a manually actuated fluid valve.
Subclass:
289
Controlled by common actuator:
This subclass is indented under subclass 288. Subject matter
wherein the means adapted to be engaged by an operator
comprises a single member by which the flow of working fluid
to plural power means may be controlled.
Subclass:
290
In control cab:
This subclass is indented under subclass 284. Subject matter
wherein the means to control the power means is located in an
enclosure or partial enclosure for an operator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
291 for a cab or support for the operator.
Subclass:
291
HAVING OPERATOR SUPPORT OR CAB:
This subclass is indented under the class definition.
Subject matter including means adapted to carry a person
controlling the operation of the apparatus.
Subclass:
292
BOOM POSITION LOCK:
This subclass is indented under the class definition.
Subject matter including a boom or boom sections and means to
selectively prevent movement of the boom or boom sections.
Subclass:
293
HAVING SNUBBER OR BOOM BACKSWING STOP:
This subclass is indented under the class definition.
Subject matter wherein (a) a damper is provided to prevent
sudden uncontrolled upward or backward movement of the boom*
or (b) means are provided to limit upward or backward
movement of the boom by direct contact.
SEE OR SEARCH THIS CLASS, SUBCLASS:
276 for traversing hoists having means to disable or stop
boom rotation in response to an unplanned or unpredictable
occurrence, and to control boom rotation in response to a
sensed condition.
SEE OR SEARCH CLASS:
414, Material or Article Handling, subclass 673 and 719 for
similar devices on other load handlers.
Subclass:
294
ADJUSTABLE TO TRANSPORT OR NONUSE POSITION (E.G.,
COLLAPSIBLE):
This subclass is indented under the class definition.
Subject matter wherein means are provided whereby either the
orientation or dimension of an element of the apparatus may
be changed to specifically render the apparatus or a portion
thereof more easily transportable or storable.
SEE OR SEARCH CLASS:
114, Ships, subclass 366 for devices for lowering life craft
which can be used from a nonuse position to a launching
position.
Subclass:
295
Crane boom supported by foldable or collapsible tower:
This subclass is indented under subclass 294. Subject matter
including a boom* supported in operative position by a
vertically disposed elongated member and means are provided
whereby either the orientation or a dimension of the
vertically extending member may be changed to render the
apparatus more easily transportable or storable.
(1) Note. The member (tower) must remain vertical during
load-handling operations to be considered as a boom support
as defined above.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), 111 for an
elongated member or construction at least part of which is
movable relative to another part or a base, and motive means
to effect such movement.
Subclass:
296
Extensible tower of relatively sliding sections:
This subclass is indented under subclass 295. Subject matter
including a vertically disposed elongated boom* support
consisting of telescoping segments whereby the length of the
support may be changed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
204 for a vertically extensible boom support by which the
boom is supported at different hoisting heights.
348 for extensible boom or mast structure, per se.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), subclass 118 for an
elongated member or construction comprised of a plurality of
telescoping segments and which is mounted on a base for
tilting movement.
Subclass:
297
Hydraulically pivoted tower or tower sections:
This subclass is indented under subclass 295. Subject matter
wherein the elongated boom* support is (a) pivoted to or from
a horizontal transport attitude by pressure of a working
fluid or (b) comprised of a plurality of longitudinal
segments pivotally connected in end-to-end fashion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
238 for apparatus having a horizontally and vertically
swinging boom and a fluid-actuated ram for swinging the boom
vertically.
261 for apparatus having a boom swingable vertically by a
fluid-actuated ram.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), subclass 115 for an
elongated member or construction moved relative to a base by
a fluid-actuated mechanism and subclasses 116+ for a tiltable
member having relatively moving sections.
Subclass:
298
Collapsible inverted "V" frame supports boom rigging:
This subclass is indented under subclass 294. Subject matter
including a boom* and a system of cables or the like to raise
and lower the boom, wherein the cables are in turn supported
by or guided over a member in the shape of a vertical
inverted "V", which is mounted on a base by means which
permit the "V" to be pivoted substantially parallel to the
boom.
Subclass:
299
Collapsible or foldable boom:
This subclass is indented under subclass 294. Subject matter
including a boom* and means by which either the orientation
of the boom or dimension of the boom can be changed to render
the device more easily transportable or storable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
230 for horizontally swinging extensible booms.
264 for vertically swinging extensible booms.
348 for extensible boom structure, per se.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), 116 for a tiltable
elongated member or construction and means to tilt it about a
base and subclass 646 for an open work truss, mast, or the
like, having adjustably or collapsibly connected components.
Subclass:
300
Vertically swinging boom having pivoted sections:
This subclass is indented under subclass 299. Subject matter
wherein the boom* is pivoted to a support structure for
movement about a horizontal axis, and wherein the boom
comprises a plurality of sections hingedly connected in
end-to-end fashion whereby a section may be swung to a
position alongside another section for transport or storage.
SEE OR SEARCH THIS CLASS, SUBCLASS:
237 for a vertically and horizontally swinging boom having a
jibboom or other extension which is pivoted relative to the
main boom to manipulate the load.
260 for a vertically swinging boom having a jibboom or other
extension which is pivoted relative to the main boom to
manipulate the load.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), 117 for a tiltable
elongated member or construction having relatively moving
sections.
Subclass:
301
Vehicle stabilizing means:
This subclass is indented under subclass 294. Subject matter
including means to prevent undesired movement of the
apparatus during the operation thereof, said means being
provided with a portion for engaging a support surface, the
apparatus including a position to render it more easily
transportable.
Subclass:
302
Lowered from vehicle body (e.g., outrigger):
This subclass is indented under subclass 301. Subject matter
wherein a ground engaging stabilizing means is extended
downwardly from the vehicle body.
SEE OR SEARCH CLASS:
254, Implements or Apparatus for Applying Pushing or Pulling
Force, digest 1 for jack bases and 418 for vehicle attached
jacks, including retractable ground supports which are
extended by power to stabilize the vehicle when not in use.
280, Land Vehicles, 763.1 for a vehicle provided with a
retractable prop or support for stabilizing the vehicle when
not in motion.
Subclass:
303
Gear or screw drive to extend foot:
This subclass is indented under subclass 302. Subject matter
wherein said ground engaging stabilizing means is attached to
the vehicle body and includes a portion which is extensible
to engage a support surface by means of a toothed or threaded
drive.
Subclass:
304
Hydraulic means to extend foot:
This subclass is indented under subclass 302. Subject matter
wherein said ground engaging stabilizing means is attached to
the vehicle body and includes a portion which is extensible
to engage a support surface by fluidic means.
Subclass:
305
Pivoted lever or link to extend foot:
This subclass is indented under subclass 302. Subject matter
wherein said ground engaging stabilizing means is attached to
the vehicle body and includes a portion which is extensible
to engage a support surface by means of a fulcrumed arm or
interconnector.
Subclass:
306
Boom or mast attached:
This subclass is indented under subclass 301. Subject matter
wherein said stabilizing means is connected to a boom or
mast.
Subclass:
307
SHIP MOUNTED OR FLOATING (E.G., A CRANE FIXED TO A PLATFORM
ADAPTED TO FLOAT):
This subclass is indented under the class definition.
Subject matter peculiarly adapted to be fixed to a marine
vessel or adapted to remain suspended within or on the
surface of a fluid without sinking.
SEE OR SEARCH CLASS:
114, Ships, 44 for hoisting devices designed for raising
sunken or submerged vessels; and subclass 268 for vessels
with lifting and hauling apparatus not elsewhere provided
for; and subclasses 368+ for cranes specially adapted to
raise and lower small boats.
414, Material or Article Handling, 137.1 for a ship loading
or unloading hoist having a claimed bucket, scoop, or
scraper-type load engager.
Subclass:
308
Including counterweight or means to compensate for list, trim
or skew of vessel:
This subclass is indented under subclass 307. Subject matter
including either (a) a mass specifically employed to offset
the weight of the load or (b) means to neutralize the effect
of a tilting attitude about the longitudinal, lateral, or
vertical axis of the vessel or platform.
SEE OR SEARCH THIS CLASS, SUBCLASS:
272 for means to prevent or dampen oscillations of the load
as it moves.
SEE OR SEARCH CLASS:
254, Implements or Apparatus for Applying Pushing or Pulling
Force, subclass 900 for winches with wave compensation
damping.
Subclass:
309
Having horizontally and vertically swinging boom:
This subclass is indented under subclass 307. Subject matter
including a boom* pivotally mounted on the vessel or platform
for movement about two mutually orthogonal axes, one disposed
vertically and the other horizontally.
SEE OR SEARCH THIS CLASS, SUBCLASS:
232 for other horizontally and vertically swinging booms.
Subclass:
310
Cable actuated horizontally and vertically:
This subclass is indented under subclass 309. Subject matter
including at least one flexible rope, or rope-like element,
for swinging the boom about both axes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
236 for other apparatus having a boom which is swung both
horizontally and vertically by cables.
Subclass:
311
Plural booms:
This subclass is indented under subclass 310. Subject matter
including additional cable-actuated swiveled booms* carried
on the marine vessel or platform.
SEE OR SEARCH THIS CLASS, SUBCLASS:
233 for other apparatus having a plurality of horizontally
and vertically swinging booms.
Subclass:
312
TRAVELING BRIDGE:
This subclass is indented under the class definition.
Subject matter comprising an elongated member supported
horizontally at two spaced points above a surface for
translational movement across the surface, and which serves
as or bears a track or guide between the supporting points on
which a load-supporting trolley* or another traveling bridge*
is adapted to move.
SEE OR SEARCH THIS CLASS, SUBCLASS:
171 for a traveling bridge having a clutch or variable
transmission.
226 for a bridge which is supported for pivotal movement,
rather than translational movement.
285 for a pendant control mechanism suspended below a
traveling bridge.
SEE OR SEARCH CLASS:
414, Material or Article Handling, subclass 186, 225.01+, and
561+ for a device which may be in the nature of a traveling
crane including means for gripping its load.
Subclass:
313
Flexible:
This subclass is indented under subclass 312. Subject matter
wherein the member, movably supported at two points,
comprises an elongated pliant member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
76 for overhead cable hoists.
Subclass:
314
Having vertically adjustable track:
This subclass is indented under subclass 312. Subject matter
wherein means are provided to raise or lower the track or
guide with respect to the surface over which the bridge*
translates.
SEE OR SEARCH CLASS:
254, Implements or Apparatus for Applying Pushing or Pulling
Force, subclass 90 for portable platforms for supporting
hoisting apparatus mounted upon multiple lifting means, so as
to straddle a track or roadway.
Subclass:
315
Supporting second traveling bridge:
This subclass is indented under subclass 312. Subject matter
including a second bridge* carried by the first and mounted
for translational movement along the track or guide of the
first bridge.
Subclass:
316
Having plural trolleys:
This subclass is indented under subclass 312. Subject matter
wherein two trolleys* are provided which are concurrently
supported for movement along the track or guide of the
traveling bridge.
Subclass:
317
Having vertically or horizontally swinging boom on bridge or
trolley:
This subclass is indented under subclass 312. Subject matter
wherein a boom* is pivotally attached to (a) the traveling
bridge* or (b) a trolley* adapted to travel along the
bridge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
224 for a trolley-mounted horizontally swinging boom wherein
the track or guide on which the trolley moves is not carried
by a traveling bridge.
Subclass:
318
Having horizontally swingable track- or load-rotating means
on trolley:
This subclass is indented under subclass 312. Subject matter
wherein (a) the traveling bridge* comprises an elongated
member having a track or guide mounted thereon for pivotal
movement about a vertical axis or (b) a trolley* is carried
by the traveling bridge and comprises a first portion
engaging track or guide and a second pivotally mounted
portion from which the load is suspended.
SEE OR SEARCH THIS CLASS, SUBCLASS:
334 for grabs with load rotating means on the trolley.
Subclass:
319
Having load engager mounted for guided vertical movement
beneath trolley:
This subclass is indented under subclass 312. Subject matter
including a load carrier beneath a rigid vertically oriented
member which engages structure on the trolley* to guide the
load carrier in up-and-down movement with respect to the
trolley.
SEE OR SEARCH THIS CLASS, SUBCLASS:
333 for guide bars for guided vertical movement.
SEE OR SEARCH CLASS:
187, Elevator, Industrial Lift Truck, or Stationary Lift for
Vehicle, 9 for an ambulant elevator comprising a platform
upon which a load is to be placed and which is mounted for
guided vertical movement.
414, Material or Article Handling, subclass 591 for
analogous structure having a claimed self-loading grab for
engaging the load.
Subclass:
320
Motor fixed to bridge-supporting structure:
This subclass is indented under subclass 312. Subject matter
including a power means for raising or traversing the load.
The power means is mounted adjacent the traveling bridge
whereby the bridge translates with respect to the power
means.
Subclass:
321
Trolley mounted motor for trolley traversal via cable means:
This subclass is indented under subclass 312. Subject matter
wherein the traveling bridge* carries a trolley* on which is
mounted a power means employed to pull an elongated flexible
member, thereby moving the trolley along the bridge.
Subclass:
322
Bridge mounted motor for trolley traversal via cable means:
This subclass is indented under subclass 312. Subject matter
wherein the bridge carries a trolley which is moved with a
flexible rope-like member by a motor supported on the bridge
and remote from the trolley.
Subclass:
323
Bridge mounted motor for load lifting:
This subclass is indented under subclass 312. Subject matter
wherein the load carried by the trolley is lowered and raised
by means of a motor supported on the bridge and remote from
the trolley.
Subclass:
324
Having vertical supporting legs (e.g., gantry):
This subclass is indented under subclass 312. Subject matter
wherein the bridge* is supported above the surface by two
elongated vertical-supporting members, each of which is fixed
at its upper end to the elongated member of the bridge and is
provided at the lower end with means to facilitate movement
of the bridge over a supporting surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
343 for vehicles with supporting legs which stradle a load
and have a means to translate the load with respect to the
vehicle, wherein the load is primarily moved by movement of
the loaded vehicle.
Subclass:
325
Overhanging end:
This subclass is indented under subclass 324. Subject matter
including track or guiding structure for a trolley* which
extends beyond one of the elongated vertical-supporting
members in cantilever fashion.
Subclass:
326
Having specific engager for load:
This subclass is indented under subclass 324. Subject matter
wherein significance is attributed to the particular
structure for carrying the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
242 for a specific load handler suspended from a
horizontally and vertically swinging boom.
251 for a specific load handler suspended from a
horizontally swinging boom.
259 for a specific load handler suspended from a vertically
swinging boom.
327 for a specific load handler suspended from a traveling
bridge other than a gantry.
SEE OR SEARCH CLASS:
294, Handling, Hand and Hoist-Line Implements, appropriate
subclasses for a specific load engager, per se.
414, Material or Article Handling, appropriate subclasses for
handlers having specific types of load engagers; particularly
subclass 186, 225.01+, 618+, 729+, 751.1, and 792.9 for
grippers and grabs; and subclasses 444+ and 785 for load
engager structure in general.
Subclass:
327
Having specific engager for load:
This subclass is indented under subclass 312. Subject matter
wherein significance is attributed to the particular
structure for carrying the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
242 for a specific type load handler suspended from a
horizontally and vertically swinging boom.
251 for a specific type load handler suspended from a
horizontally swinging boom.
259 for a specific type load handler suspended from a
vertical swinging boom.
326 for a specific type load handler for a gantry.
SEE OR SEARCH CLASS:
294, Handling: Hand and Hoist-line Implements, appropriate
subclasses for a specific load engager, per se.
414, Material or Article Handling, appropriate subclasses for
handlers having specific types of load engagers; particularly
subclass 186, 225.01+, 618+, 729+, 751.1, and 792.9 for
grippers or grabs; and subclasses 444+ and 785 for load
engager structure in general.
Subclass:
328
Self-propelled trolley:
This subclass is indented under subclass 71. Subject matter
comprising a carriage provided with means for moving itself
along a track.
SEE OR SEARCH CLASS:
186, Merchandising, subclass 29 for similar devices
specially adapted for store service use.
Subclass:
329
Automatic traversing stop:
This subclass is indented under subclass 328. Subject matter
comprising a means for automatically stopping the trolley
when a predetermined point on the track is reached.
SEE OR SEARCH THIS CLASS, SUBCLASS:
281 for an automatic stop for hoisting means.
Subclass:
330
Load-handling:
This subclass is indented under subclass 328. Subject matter
comprising some special means for receiving, engaging,
gripping, discharging, or releasing a load.
Subclass:
331
Electric:
This subclass is indented under subclass 330. Subject matter
comprising an electric power means for traversing and for
hoisting the load.
Subclass:
332
With grab:
This subclass is indented under subclass 331. Subject matter
including gripping means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
243 for a grab suspended from a horizontally and vertically
swinging boom.
334 for a self-propelled overhead hoist equipped with a
grab.
Subclass:
333
With guide bar:
This subclass is indented under subclass 331. Subject matter
which comprises some form of rigid or semirigid linkage or
similar device for connecting the hoisting trolley with the
load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
318 for similar devices using a trolley on a traveling
bridge.
Subclass:
334
With grab:
This subclass is indented under subclass 333. Subject matter
including gripping means.
Subclass:
335
With ladle:
This subclass is indented under subclass 333. Subject matter
including a scoop or similar container.
Subclass:
336
Nonmotor traverse:
This subclass is indented under subclass 71. Subject matter
in which the carriage is moved along the track by gravity or
by an attendant.
Subclass:
337
Nonmotor hoisting:
This subclass is indented under subclass 336. Subject matter
in which the load is raised or lowered by an attendant.
Subclass:
338
With load handler:
This subclass is indented under subclass 336. Subject matter
comprising some special means for receiving, engaging,
gripping, discharging or releasing a load.
Subclass:
339
Discharging:
This subclass is indented under subclass 338. Subject matter
comprising a carrier and means for discharging the carrier as
by releasing or dumping the load.
Subclass:
340
Automatic:
This subclass is indented under subclass 339. Subject matter
comprising a carrier and means for discharging a load when
the carrier reaches a predetermined point.
Subclass:
341
Fluid Hoist:
This subclass is indented under subclass 336. Subject matter
comprising a fluid cylinder hoist.
SEE OR SEARCH THIS CLASS, SUBCLASS:
319 for similar devices in combination with a traveling
bridge.
Subclass:
342
Lever Hoist:
This subclass is indented under subclass 336. Subject matter
comprising a single fulcrum for lifting the load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
224 and 317, for booms mounted on trolleys.
Subclass:
343
Surface vehicle:
This subclass is indented under subclass 71. Subject matter
comprising an ambulant carriage having an elevated support
portion including a flexible hoist attached to the elevated
support portion and means to shift the load horizontally with
respect to the support portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
312 for supports designed to travel laterally on rails.
SEE OR SEARCH CLASS:
242, Winding, Tensioning, or Guiding, for reels mounted on
vehicles.
254, Implements or Apparatus for Applying Pushing or Pulling
Force, 323 for vehicles with hoists which do not include
horizontal shifting of the load with respect to the support.
414, Material or Article Handling, 542 for devices on
self-loading vehicles.
Subclass:
344
Self-propelled:
This subclass is indented under subclass 343. Subject matter
comprising means for moving the vehicle from place to place.
SEE OR SEARCH CLASS:
180, Motor Vehicles, subclass 6.2 and 6.28 for driving and
steering means for similar vehicles.
Subclass:
345
Drum:
This subclass is indented under subclass 343. Subject matter
comprising a hoisting winch.
Subclass:
346
Trolley having wheels which contact different sides or planes
of abeam:
This subclass is indented under subclass 71. Subject matter
wherein the trolley includes plural wheels arranged in
non-parallel axes for contacting off-set surfaces on the
beam.
SEE OR SEARCH THIS CLASS, SUBCLASS:
198 for apparatus having a counterweight mounted on a
wheeled carriage for rectilinear movement relative to the
support above the load.
225 for a boom* mounted for movement about a vertical axis
and having a trolley thereon.
257 for a boom mounted for movement about a horizontal axis
only and having a trolley thereon.
312 for a traveling bridge* having a trolley* thereon.
SEE OR SEARCH CLASS:
104, Railways, 89 for suspended trolley railways and
subclasses 188+ monorail railways (no hoisting feature
claimed).
105, Railway Rolling Stock, subclass 163 for overhead crane
trucks (trolleys) where no hoisting structure is claimed.
Subclass:
347
BOOM OR MAST:
This subclass is indented under the class definition.
Subcombination comprising an elongated structural member
disclosed as being part of a traversing hoist and which
serves to either support the load, a boom*, or boom rigging.
(1) Note. To be proper for original placement in Class 212,
a claim to a boom or mast as defined above must include
structural limitations peculiar to a traversing hoist. (See
search note to Class 52 in main definition.)
SEE OR SEARCH THIS CLASS, SUBCLASS:
177 for a boom having means to facilitate assembly or
disassembly of plural longitudinal segments of the boom to
one another.
Subclass:
348
Extensible by sliding sections:
This subclass is indented under subclass 347. Subject matter
wherein the elongated structural member comprises telescoping
segments whereby the overall length of the member can be
changed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
177 for a boom* whose length is changed by assembling or
disassembling boom sections.
204 for a boom supported on an extensible mast.
230 for extensible booms which are mounted for horizontal
swinging movement.
264 for extensible booms which are mounted for vertical
swinging movement only.
294 for a boom or mast having an extending and collapsing
feature for transport only.
296 for an extensible tower which collapses to a
nonuseposition.
SEE OR SEARCH CLASS:
52, Static Structures (e.g., Buildings), 118 for a
miscellaneous elongated structural member which is comprised
of telescoping segments and is mounted to a base for tilting
movement relative thereto.
Subclass:
349
By fluid pressure:
This subclass is indented under subclass 348. Subject matter
wherein the overall length of the member can be changed by
application of a working fluid under pressure to the member
or an associated motor.
Subclass:
350
Having bearing means between extensible sections:
This subclass is indented under subclass 348. Subject matter
wherein significance is attributed to specific structure of
the areas of contact between respective relatively sliding
sections of the structural member.
CROSS-REFERENCE ART COLLECTIONS
Subclass:
901
Dolley-type cranes:
This subclass is indented under the class definition. A
collection of art comprising a wheeled base supporting a
mast, a boom, and a hoist means whereby the apparatus is
sized to be pushed by the operator.
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