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 213
RAILWAY DRAFT APPLIANCES
Class Definition:
This class contains patents involving means for connecting
together the various elements of a railway train. It also
contains patents involving means for resiliently absorbing
the shocks and blows incident to the movement of the train
and to give cushioning effect to starting and stopping
thereof. Devices relating to this purpose may be formed as a
part of the coupling devices or may be separate devices
secured to or built into the car construction, either to
cooperate with the coupling device or to engage and cooperate
with similar structure on another car.
LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
(1) Note. Elements of a car, which are also elements of the
subject matter of this class, but are modified in structure
for use in combination with other elements of the car, the
problem involved being more that of car construction than
relating to the subject matter of this class, will be found
in Class 105, Railway Rolling Stock. Copies of the patents in
Class 105 which might be of value as references in this class
have been placed in the class as cross references.
(2) Note. Patents claiming combinations between car couplers
and devices for other purposes incident to the use and
operation of the car will be found in the classes in which
such other devices are classified. The combination of a car
coupler and means for coupling train-pipe service for air or
steam forms an exception to the rule above noted and will be
found in this Class 213, subclass 76. However, where such
train line is secured to a coupler or drawbar and its
operation is the same as though hung to any other part of the
car the combination will be found in Class 285, Pipe Joints
or Couplings, subclasses 24+ and 62+. The combination of a
car coupler and connecting means for electric circuits forms
another exception to the above rule and will be found in this
Class 213, subclasses 1.3+. Where the combination is between
a coupler and a brake see Class 188, Brakes. Where the
combination is between a car coupler and means for unloading
or loading a car, see Class 414, Material or Article
Handling.
(3) Note. Devices adapted to attach draft animals to cars
will be found in Class 278, Land Vehicles: Animal Draft
Appliances.
(4) Note. For coupling and draft devices for trains of
vehicles other than track vehicles see Class 180, Motor
Vehicles, subclasses 14.1+, and Class 280, Land Vehicles,
subclasses 400+.
SUBCLASSES
Subclass:
1
Devices not falling specifically within the definitions of
the following subclasses.
Subclass:
1.3
This subclass is indented under the class definition.
Combinations of railway draft couplers with electrical
connecting means.
SEE OR SEARCH CLASS:
280, Land Vehicles, subclass 422 for electric service
connections in land vehicle trains.
439, Electrical Connectors, for electric connectors, per se,
especially subclasses 34+ for combinations of electric
connectors with vehicle structures other than draft
couplers.
Subclass:
1.6
This subclass is indented under subclass 1.3. Combinations
having an electric switch or other means for opening or
controlling a circuit through the connector contacts without
separating said contacts.
(1) Note. The switch or other circuit opening or control
means is usually, but not necessarily, located at a point
remote from the car coupler and electric connector, and may
be interlocked therewith so as to require operation of the
switch before the connector contacts or car-couplers can be
separated.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, for
miscellaneous electrical systems in general especially
subclass 9.1 for vehicle mounted systems.
Subclass:
2
This subclass is indented under the class definition. Draft
devices for connecting together a locomotive and tender, the
forward end of the locomotive or the rear end of a tender to
the other cars of a train.
Subclass:
3
This subclass is indented under subclass 2. Devices where the
connecting means is between the locomotive and tender.
Subclass:
4
This subclass is indented under subclass 2. Draft device
which is capable of being moved to an inoperative or
out-of-the-way position when not in use.
Subclass:
5
This subclass is indented under subclass 4. Devices having in
combination therewith means for raising the draft device in a
vertical direction.
Subclass:
6
This subclass is indented under subclass 2. Devices made in
the form of a pocket secured to an end portion (usually the
rear end of a tender) for holding a coupling device.
Subclass:
7
This subclass is indented under the class definition. Patents
providing means for cushioning the movement of the draft
device.
SEE OR SEARCH CLASS:
267, Spring Devices, subclass 120 for a spring device of the
expansible-chamber fluid spring type, for cushioning a rail
vehicle body on its undercarriage.
Subclass:
8
This subclass is indented under subclass 7. The draft device
is continuous from one end of the car to the other.
Subclass:
9
This subclass is indented under subclass 7. Means wherein a
cushioned draft device is operatively connected to a car end
buffer and functions therewith for any purpose.
(1) Note. See search note below for definition of a car end
buffer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
220 for definition of a car end buffer.
Subclass:
10
This subclass is indented under subclass 7. Devices where the
car is of the type having a single center sill.
Subclass:
11
This subclass is indented under subclass 7. Devices where the
cushioning means extends into or through the bolster of the
car and the bolster is modified to cooperate therewith.
Subclass:
12
Wherein the draft device is movable angularly in any
direction.
(1) Note. Patents showing looseness of parts which permits
angular movement do not fall in this subclass unless the
structure is specially designed to take advantage of such
looseness to give angular movement.
Subclass:
13
This subclass is indented under subclass 12. Means wherein
the movement of the draft device is in a vertical direction.
Subclass:
14
Structure under subclass wherein vertical movement of the
draft device is combined with a horizontal movement.
Subclass:
15
This subclass is indented under subclass 12. Structure
wherein the movement of the draft device is controlled by the
movement of the car truck.
Subclass:
16
This subclass is indented under subclass 12. Devices wherein
means are provided to move by hand the draft device to bring
the coupling part to a position to facilitate coupling.
Subclass:
17
This subclass is indented under subclass 16. Devices wherein
the hand- controlling means also operates as means for
unlocking or uncoupling the coupler.
Subclass:
18
This subclass is indented under subclass 12. Means wherein
the center of radial movement of the draft device is on a
pivot connecting the coupler head to the drawbar.
Subclass:
19
This subclass is indented under subclass 18. Devices wherein
self-acting means are employed to return the head and drawbar
into alignment.
Subclass:
20
This subclass is indented under subclass 18. Devices wherein
self-acting means are employed to move the draft devices into
alignment with the center line of the car.
Subclass:
21
This subclass is indented under subclass 20. Structure
wherein the centering means for the draft device is carried
by or formed as part of the drawbar carrier.
Subclass:
22
This subclass is indented under subclass 7. Devices using the
combined action of springs and friction as means for
cushioning movement of the draft devices.
SEE OR SEARCH CLASS:
267, Spring Devices, subclasses 196+ for spring and
friction retarder devices specifically disclosed as having
utility other than as a railway draft appliance and in which
no claim sets forth a spring device limited to use as railway
draft appliance.
Subclass:
23
This subclass is indented under subclass 22. Devices wherein
the cushioning action is against the action of a spring
preliminary to the combined action of spring and friction.
Subclass:
24
This subclass is indented under subclass 23. Cushioning
devices is of a type comprising a casing with friction shoes
engaging the casing and wedges to force the shoes into
engagement therewith.
Subclass:
25
This subclass is indented under subclass 22. Means wherein
spring action only cushions a draft movement of the device,
with combined spring and friction on buffing movement.
Subclass:
26
This subclass is indented under subclass 22. Combined spring
and friction devices in which compression of the springs is
greater or less than the movement of the draft device.
Subclass:
27
This subclass is indented under subclass 26. Devices wherein
the friction is generated by rotative movement of friction
elements.
Subclass:
28
This subclass is indented under subclass 22. Devices wherein
the friction is generated by the rotative movement of
friction elements.
Subclass:
29
This subclass is indented under subclass 22. Devices wherein
interengaging springs generate the frictional resistance by
movement upon each other.
Subclass:
30
This subclass is indented under subclass 29. Devices wherein
the springs are plate springs.
Subclass:
31
This subclass is indented under subclass 22. Devices wherein
one of the friction elements of the device is a casing.
Subclass:
32
This subclass is indented under subclass 31. Devices wherein
the friction is generated by wedging of shoes outwardly
against the inner walls of the casing.
Subclass:
33
This subclass is indented under subclass 32. Devices wherein
there are also provided interleaved friction plates, some
being movable relative to others.
Subclass:
34
This subclass is indented under subclass 33. Devices wherein
the wedges are formed of a plurality of parts.
Subclass:
35
This subclass is indented under subclass 22. Devices wherein
one of the friction elements is in the form of a post
centrally disposed.
Subclass:
36
This subclass is indented under subclass 35. Devices wherein
the wedges are employed to force shoes into engagement with
the friction post.
Subclass:
37
This subclass is indented under subclass 22. Devices wherein
the friction is generated by movement of friction devices
transversely thereof.
Subclass:
38
This subclass is indented under subclass 37. Devices wherein
spring resistance is disposed transversely thereof.
Subclass:
39
This subclass is indented under subclass 38. Devices wherein
the movement of the friction element is in an inward
direction.
Subclass:
40
This subclass is indented under subclass 7. The cushioning
device for the draft is in the form of a spring.
SEE OR SEARCH CLASS:
267, Spring Devices, for spring devices specifically
disclosed as having utility other than as a railway draft
appliance and in which no claim sets forth a spring device
limited to use as a railway draft appliance.
Subclass:
41
This subclass is indented under subclass 40. Devices wherein
the spring resistance is increased to give greater resistance
to movement of the draft device per unit of travel according
to the amount of travel of the draft device or to provide a
greater resistance to impact shock than to pulling strains.
Subclass:
42
This subclass is indented under subclass 40. Devices wherein
the springs are tension springs.
Subclass:
43
Wherein devices of the class indicated the spring is the
compression of a pneumatic fluid or dashpot action of a
liquid fluid.
Subclass:
44
Wherein devices of the class indicated a plurality of springs
are employed in the device.
Subclass:
45
Wherein devices of the class indicated the springs are
arranged in tandem relation.
Subclass:
46
Wherein devices of the class indicated one spring or set of
springs are used for draft strains and another spring or set
of springs are used for buffing shocks, the springs or sets
of springs having tandem relation.
Subclass:
47
Wherein a tandem-spring device a U-shaped member surrounds
the springs and is engaged to the drawbar by the legs of the
member.
Subclass:
48
Wherein devices of the class indicated overlapping plungers
adapted for movement in opposite directions are employed as
means for compressing the springs.
Subclass:
49
Wherein devices of the class indicated springs are arranged
so that lines through their axes of compression are parallel
to each other.
(1) Note. This does not include a plurality of springs
where this line is common to all the springs.
Subclass:
50
That part of the car construction or separate means fixed
thereto which cooperates with the draft devices.
Subclass:
50.5
This subclass is indented under subclass 50. Devices in which
parts of the car construction or separate means attached
thereto prevent unintentional displacement of the draft key
which couples the draft means to the cushioning means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
69 for draft key retainers in cushioned draft connections
which do not include parts fixed to the car.
SEE OR SEARCH CLASS:
411, Expanded, Threaded, Driven, Headed, Tool-Deformed, or
Locked-Threaded Fastener, subclass 351 for a draft key
fastener, per se.
Subclass:
51
That part of the car through which the force of pull or buff
on the draft devices is transferred to the car.
(1) Note. Only the construction of the draft sills which
directly cooperates with the draft device will be found in
this class.
SEE OR SEARCH CLASS:
105, Railway Rolling Stock, subclass 413 and indented
subclasses.
Subclass:
52
Devices of the class indicated adapted for use with
parallel-arranged type of draft gear.
Subclass:
53
Devices of the class indicated adapted for use with
tandem-arranged type of draft gear.
Subclass:
54
Plates adapted to be secured to the faces of car sills to
provide means whereby the force of buff or draft is
transferred to the car through the sills.
Subclass:
55
Devices of the class indicated adapted for use with
tandem-arranged type of draft gear.
Subclass:
56
Devices secured to the car in the form of a single means for
acting as a stop for an individual follower element of a
draft device.
Subclass:
57
Where the stops of the class indicated also form an element
of the bolster of the car.
Subclass:
58
Means secured to the end of a car and adapted to receive and
limit the inward movement of the draft device.
(1) Note. The coupler is provided with an
upwardly-projecting part (called the coupler horn) which
engages the striking block at the end of its inward
movement.
Subclass:
59
Where the striking block is resiliently supported to cushion
the inward movement of the coupler.
Subclass:
60
Where the striking block also acts as drawbar carrier.
Subclass:
61
Means for supporting the drawbar in a horizontal position.
Subclass:
62
That part of a draft device to which the coupler head and the
cushioning element are secured.
Subclass:
63
Means secured to the rear end of the drawbar and adapted to
lengthen it.
Subclass:
64
Means for connecting the rear end of the drawbar or drawbar
extension to the cushion.
Subclass:
65
Wherein devices of the class indicated the cushion consists
in part of a friction case and special means are employed to
connect the drawbar to the casing.
(1) Note. Types of means for this purpose that are capable
of use with other types of cushion will be found in other
subclasses of this class.
Subclass:
66
Wherein devices of the class indicated the connecting means
are in form of links.
Subclass:
67
Wherein devices of the class indicated the connecting means
are U-shaped, surround the cushion, and are connected to the
drawbar at the ends of the legs of the U.
Subclass:
68
Wherein devices of the class indicated the yoke is
longitudinally divided into separate parts.
Subclass:
69
Devices of the class indicated where the novelty lies in the
manner of connecting the drawbar to the yoke.
Subclass:
70
Wherein devices of the class indicated the yoke is provided
with a hooded end.
Subclass:
71
Wherein devices of the class indicated the connection is such
as to pivot the yoke to the drawbar.
Subclass:
72
Wherein devices of the class indicated the connection is such
as to pivot the yoke to the drawbar.
Subclass:
73
Where the draft device extends continuously the length of the
car and is not of such character that it falls in any
subclass noted above.
Subclass:
74
Where the draft device is radially movable and is not of such
character that it falls in any subclass noted above.
Subclass:
75
The element of a draft device by which cars are coupled
together.
SEE OR SEARCH CLASS:
403, Joints and Connections, appropriate subclasses for
connections between two members in general.
Subclass:
76
Couplings that are adapted for securing together cars and
when coupled or during the coupling operation also coupling
the train service pipe for air or steam.
(1) Note. Couplings to which are secured automatic devices
for coupling air or steam pipes and in which the coupling
thereof is independent of the coupling action of the car
coupler will be found elsewhere. See the Search Class note
below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1.3 for couplings of the type provided for herein (subclass
76) when claimed in combination with electrical connecting
means.
SEE OR SEARCH CLASS:
137, Fluid Handling, subclasses 347+ for valved couplings
on railway car structure and subclasses 614+ for pipe
couplings having plural serial valves.
251, Valves and Valve Actuation, subclasses 148+ for a
valved pipe coupling.
285, Pipe Joints or Couplings, subclasses 24+ and 62+. See
the (1) Note above.
439, Electrical Connectors, subclasses 191+ for
combinations of electric connectors with fluid line conduits
or couplings.
Subclass:
77
Coupling devices that are alike in all their elements and can
be coupled to each other without use of any additional
element or elements.
Subclass:
78
Those in which a link or bar is used as the coupling means.
Subclass:
79
Wherein devices of the class indicated a selection of a
coupling element of either coupler is made to effect the
coupling. The selection may be either manual or automatic.
Subclass:
80
Wherein devices of the class indicated a beveled link on one
coupler is engaged and held by a swinging catch on the other
coupler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
91 and 176.
Subclass:
81
Wherein devices of the class indicated the beveled link is
formed at one end like and arrowhead.
SEE OR SEARCH THIS CLASS, SUBCLASS:
92 and 177.
Subclass:
82
Wherein devices of the class indicated a link on one coupler
engages a hook on the other coupler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
93 178, 179, and 180.
Subclass:
83
Where the link is in the form of a bail.
SEE OR SEARCH THIS CLASS, SUBCLASS:
94 and 181.
Subclass:
84
Wherein devices of the class indicated each coupler comprises
a hook and link formed together, the link of either coupler
adapted to engage the hook of the other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
95
Subclass:
85
Wherein devices of the class indicated a headed link is
adapted to be engaged in a slot having fixed shoulders.
SEE OR SEARCH THIS CLASS, SUBCLASS:
96 97, 182, 183, and 184.
Subclass:
86
Wherein devices of the class indicated an open link on one
coupler is engaged and held by a pin passing through the
opening.
SEE OR SEARCH THIS CLASS, SUBCLASS:
98 188 and 189.
Subclass:
87
Where the pin is pivotally supported to be swung rearwardly
by an entering link and to move by gravity or a spring to
engaged in the opening in the link.
SEE OR SEARCH THIS CLASS, SUBCLASS:
99 and 190.
Subclass:
88
Wherein devices of the class indicated each coupler is
provided with a hook and catch and when coupled the hooks on
both couplers engage with the catches on the opposing
coupling.
SEE OR SEARCH THIS CLASS, SUBCLASS:
79 and 175.
Subclass:
89
Where the hooks are pivoted.
SEE OR SEARCH THIS CLASS, SUBCLASS:
79 and 175.
Subclass:
90
Where the hooks are pivoted to swing in a horizontal plane.
SEE OR SEARCH THIS CLASS, SUBCLASS:
79
Subclass:
91
Wherein devices of the class indicated a beveled link on each
coupler engages a swinging catch on the other coupler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
80 and 176.
Subclass:
92
Where the end of each link is fashioned like an arrowhead.
SEE OR SEARCH THIS CLASS, SUBCLASS:
81 and 177.
Subclass:
93
Where each coupler is provided with a hook and a link and the
link on each coupler engages with the hook on the other
coupler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
82 178, 179, and 180.
Subclass:
94
Wherein devices of the class indicated the link is in the
form of a bail.
SEE OR SEARCH THIS CLASS, SUBCLASS:
83 and 181.
Subclass:
95
Wherein devices of the class indicated each coupler comprises
a hook and link formed together and the link on each coupler
engages with the hook on the other coupler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
84
Subclass:
96
Wherein devices of the class indicated a headed link on each
coupler is adapted to be engaged in a slot having fixed
shoulders.
SEE OR SEARCH THIS CLASS, SUBCLASS:
85 182, 183, and 184.
Subclass:
97
Where a head on the link or the link itself is adapted for
rotative movement to engage or disengage from the shouldered
slot.
SEE OR SEARCH THIS CLASS, SUBCLASS:
184
Subclass:
98
Where each coupler is provided with a pin and an open link
and the pin on each coupler engages with the open link on the
other coupler.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86 188 and 189.
Subclass:
99
Wherein devices of the class indicated the pin is a pivotally
supported to be swung rearwardly by an entering link and to
be moved by gravity or a spring to engage in the opening in
the link.
SEE OR SEARCH THIS CLASS, SUBCLASS:
87 and 190.
Subclass:
100
Wherein devices of the class indicated a hook or knuckle on
one coupler is adapted for engagement with a similar hook or
knuckle on a mating coupler.
Subclass:
101
Wherein a device of the class indicated the hook or knuckle
is formed as an arrowhead.
Subclass:
102
Where a plurality of arrowheads are used in each coupler.
Subclass:
103
Where the hook or knuckle is formed with a
transversly-sliding bill.
Subclass:
104
When the hook or knuckle is pivoted to swing in a horizontal
plane.
Subclass:
105
A type of coupler known when used by the railroads of this
country as the Miller hook and consisting of a drawbar
pivoted to swing in a horizontal plane and provided with a
hooking bill at its outer end.
Subclass:
106
Where the bill of the hook in this type of coupler is also
movable.
Subclass:
107
Where the knuckle is in the form of a rotatable star wheel,
any one of the branches of the wheel adapted to be engaged in
the coupled position.
Subclass:
108
Wherein devices of the class indicated each coupling is
formed of a plurality of horizontally swinging hooks or
knuckles.
Subclass:
109
A type of coupler now used on the railroads of this country
and known as the Janney type, which consists essentially of a
coupling head having a guard arm on one side and an angular
knuckle pivoted to the other side thereof, one of the legs of
the knuckle being the coupling part and the other the knuckle
tail, and means to lock the knuckle in coupling position.
This means usually engages the knuckle tail. More highly
developed couplers of this type have additional features, as
is indicated by some of the subclasses indented hereunder.
Subclass:
110
Wherein devices of the class indicated the coupler when
disconnected from a companion coupler can be automatically
coupled without manipulation or change in position of parts
at the hands of a trainman.
Subclass:
111
Wherein devices of the class indicated modification of
structure or additional devices function to adapt the coupler
for auxiliary or emergency coupler purposes.
Subclass:
112
Wherein devices of the class indicated the modification of
structure or the use of the additional device are to adapt
the coupler to couple with other used types of couplers. The
purpose is to adapt the Janney type for use on railroads
equipped with other types during the transition period from
the type used to the Janney type.
Subclass:
113
Wherein devices of the class indicated the knuckle is
provided with a plurality of tails.
Subclass:
114
Where other means than a pin is employed to pivot the knuckle
to the head.
Subclass:
115
Wherein devices of the class indicated means are employed to
throw the knuckle to its open position after the lock for the
knuckle is released.
Subclass:
116
Where a spring performs this function.
Subclass:
117
Where the force of gravity is employed to perform this
function.
Subclass:
118
Where a downward movement of the knuckle operates to swing it
on its pivot to an open position.
Subclass:
119
Where the knuckle-opening device is formed as a part of or
secured to the lock and the knuckle opening operation follows
a preliminary movement to unlock the knuckle.
Subclass:
120
Wherein devices of the class indicated the lock is both
vertically movable and horizontally rotatable, the latter
movement opening the knuckle.
Subclass:
121
Wherein devices of the class indicated the lock is both
vertically movable and tilting, the latter movement opening
the knuckle.
Subclass:
122
Wherein devices of the class indicated the lock has vertical
movement only, the latter part of the vertical movement
opening the knuckle.
Subclass:
123
Where the opening operation is effected by a member pivoted
to the knuckle.
Subclass:
124
Wherein devices of the class indicated the lock is pivoted or
rotatable, the latter part of this movement opening the
knuckle.
Subclass:
125
Wherein devices of the class indicated the coupler is
provided with means for opening the knuckle which is operated
by movement of the lock after a preliminary movement thereof
to unlock the knuckle.
Subclass:
126
Where the lock is vertically sliding only and in the latter
part of its vertical movement engages means to open the
knuckle.
Subclass:
127
Where the lock is vertically sliding and rearwardly swinging
and in the latter movement engages means to open the knuckle.
This type is the basis of the coupler which is standard on
the railroads of this country.
Subclass:
128
Wherein devices of the class indicated the lock in the latter
part of its vertical movement engages a vertically-swinging
lever to open the knuckle.
Subclass:
129
Wherein devices of the class indicated the lock is vertically
swinging only and in the latter part of this movement engages
and operates knuckle-opening means.
Subclass:
130
Wherein devices of the class indicated the lock is
horizontally sliding only and in the latter part of this
movement engages and operates means to open the knuckle.
Subclass:
131
Wherein devices of the class indicated means which is
employed for operating the lock to its unlocked position can
upon further movement thereof operate to open the knuckle.
Subclass:
132
Wherein devices of the class indicated the movement of the
means to open the knuckle is continuing and in the same
direction as that by which it operated the lock.
Subclass:
133
Wherein devices of the class indicated the lock operator
comprises a horizontally-rotating shaft.
Subclass:
134
Wherein devices of the class indicated the lock operator
comprises a pivoted lever or levers.
Subclass:
135
Wherein devices of the class indicated the lock operator is a
sliding element.
Subclass:
136
Wherein devices of the class indicated the direction of
movement of the sliding element is vertical.
Subclass:
137
Wherein devices of the class indicated the means for
operating the lock has a movement in another direction for
opening the knuckle.
Subclass:
138
Wherein devices of the class indicated the means rotates for
one purpose and slides for the other purpose.
Subclass:
139
Wherein devices of the class indicated the lock moves by
gravity to its locking position.
Subclass:
140
Wherein devices of the class indicated the lock is attached
to and carried by the knuckle tail.
Subclass:
141
Wherein devices of the class indicated the lock is pivoted to
swing in a vertical plane.
Subclass:
142
Wherein devices of the class indicated means is provided for
holding the lock temporarily in its unlocking position until
the knuckle swings towards open position. This means is
called the lock set and there is also provided means to
prevent accidental movement of the lock to unlocking position
during service of the coupler, this means being called the
anti-creep.
Subclass:
143
Wherein devices of the class indicated means is provided for
holding the lock temporarily in its unlocking position until
the knuckle swings towards open position.
Subclass:
144
Wherein devices of the class indicated means is provided to
prevent accidental movement of the lock to unlocking position
during service of the coupler.
Subclass:
145
Wherein devices of the class indicated the lock has sliding
movement in a vertical direction.
Subclass:
146
Wherein devices of the class indicated means is provided for
holding the lock temporarily in its unlocking position until
the knuckle swings towards open position. This means is
called the lock set and there is also provided means to
prevent accidental movement of the lock to unlocking position
during service of the coupler, this means being called the
anticreep.
Subclass:
147
Wherein devices of the class indicated means is provided for
holding the lock temporarily in its unlocking position until
the knuckle swings towards open position.
Subclass:
148
Wherein devices of the class indicated means is provided to
prevent accidental movement of the lock to unlocking position
during service of the coupler.
Subclass:
149
Wherein devices of the class indicated the lock has sliding
movement in a horizontal direction.
Subclass:
150
Wherein devices of the class indicated the lock is pivoted to
swing in a horizontal plane.
Subclass:
151
Patents relating to the contour of the coupler.
Subclass:
152
Patents showing interengaging means on the knuckle and
coupler head, usually to relieve the knuckle pin from
strain.
Subclass:
153
Wherein devices of the class indicated means are employed to
prevent disengagement of the coupler due to excessive
vertical movement.
Subclass:
154
Patents relating to the construction of the guard arm of the
coupler.
Subclass:
155
Patents relating to the knuckle and the knuckle pin.
Subclass:
156
Wherein devices of the class indicated means positioned below
the pin are employed to hold the knuckle pin as a whole or in
part, if accidentally broken, against downward movement.
Subclass:
157
Wherein devices of the class indicated the ears are
removable. The ears are that part of the coupler head to
which the knuckle is pivoted.
Subclass:
158
Patents showing closures for the opening in the top of a
coupler head through which passes a lifter for the lock or
the lock itself. These closures are generally used when
bottom operating means are used for the lock.
Subclass:
159
Wherein devices of the class indicated auxiliary means are
employed for moving the lock to permit uncoupling of the
coupler.
Subclass:
160
Automatic devices adapted to function under abnormal
conditions--viz., when the car leaves the track or when the
draft gear breaks.
Subclass:
161
Where the uncoupling device has a plurality of possible
movements, any one of which may be selected by a trainman.
Subclass:
162
Where the uncoupling device is operated by pull upon a rod,
chain or rope.
Subclass:
163
Where the uncoupling device comprises a plurality of
interengaging levers.
Subclass:
164
Wherein devices of the class indicated at least one of the
levers is fulcrumed to swing in a vertical plane.
Subclass:
165
Where the uncoupling device has a single lever pivoted to
swing in a vertical plane.
Subclass:
166
Where the uncoupling device comprises a horizontal rotating
shaft.
Subclass:
167
Wherein devices of the class indicated the inner end of the
shaft is journaled to the coupler head.
Subclass:
168
Wherein devices of the class indicated the shaft is directly
connected to the lock.
Subclass:
169
Wherein devices of the class indicated a
horizontally-extending link connects the shaft to the lock.
Subclass:
170
Wherein devices of the class indicated a single substantially
vertically extending link connects the shaft to the lock.
Subclass:
171
Brackets adapted to secure the uncoupling devices to the
car.
Subclass:
172
Wherein devices of the class indicated the hook or knuckle is
pivoted to swing in a vertical plane.
Subclass:
173
Wherein devices of the class indicated the hook or knuckle is
vertically disposed.
Subclass:
174
Wherein devices of the class indicated the hook or knuckle is
adapted for rotation about its vertical axis.
Subclass:
175
This subclass is indented under subclass 77. Wherein devices
of the class indicated coupling is effected by a hooked
member engaging a catch and which would not be classified in
... of this class or any indented subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
79 and 88.
Subclass:
176
This subclass is indented under subclass 77. Wherein devices
of the class indicated coupling is effected by a beveled link
being engaged and held by a swinging catch, and which would
not be classified in ... of this class or any indented
subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
80 and 91.
Subclass:
177
Where an end of each link is fashioned like an arrowhead.
SEE OR SEARCH THIS CLASS, SUBCLASS:
81 and 92.
Subclass:
178
This subclass is indented under subclass 77. Wherein devices
of the class indicated coupling is effected by a hook
engaging an opening in a link, and which would not be
classified in ... of this class or any indented subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
82 and 93.
Subclass:
179
Wherein devices of the class indicated the hooks are
pivoted.
Subclass:
180
Wherein devices of the class indicated there are provided a
plurality of hooks.
Subclass:
181
Wherein devices of the class indicated the link is in the
form of a bail.
SEE OR SEARCH THIS CLASS, SUBCLASS:
83 and 94.
Subclass:
182
This subclass is indented under subclass 77. Wherein devices
of the class indicated coupling is effected by a headed link
engaging in a shouldered slot, and which would not be
classified in ... of this class or any indented subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
85 and 96.
Subclass:
183
Wherein devices of the class indicated the head of the link
moves on a pivot.
SEE OR SEARCH THIS CLASS, SUBCLASS:
85 and 96.
Subclass:
184
Where a head on the link or the link itself is adapted for
rotative movement to engage or disengage from the shouldered
slot.
SEE OR SEARCH THIS CLASS, SUBCLASS:
97
Subclass:
185
This subclass is indented under subclass 77. Wherein devices
of the class indicated the link is formed with a beveled end
which is engaged by a sliding catch, and which would not be
classified in ... of this class.
Subclass:
186
This subclass is indented under subclass 77. Wherein devices
of the class indicated the link is formed as an arrowhead, at
its engaging end, and which would not be classified in ...
of this class.
Subclass:
187
This subclass is indented under subclass 77. Wherein devices
of the class indicated coupling is effected by a beveled link
engaging a fixed catch, and which would not be classified in
... of this class.
Subclass:
188
This subclass is indented under subclass 77. Wherein devices
of the class indicated coupling is effected by a pin passing
through an opening in an open link, and which would not be
classified in ... of the class or any indented subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86 and 98.
Subclass:
189
Wherein devices of the class indicated means are employed to
automatically move the pin to a position to permit the link
to enter the coupler, the pin then being permitted to move to
a position to lock the link, or with the pin in an uncoupling
position is positively moved by the entering link to its
coupling position.
Subclass:
190
Wherein devices of the class indicated the pin is pivotally
supported to be swung rearwardly by an entering link and to
be moved by gravity or a spring to engage in the opening in
the link, or with the pin in an uncoupling position is
positively moved by the entering link to its coupling
position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
87 and 99.
Subclass:
191
Wherein devices of the class indicated the pin is swung by
the entering link to the coupling position.
Subclass:
192
Wherein devices of the class indicated means are employed to
hold the pin in a position to permit the link to enter the
coupler, there being a subsequent release to permit the pin
to move to a position to lock the link.
Subclass:
193
Wherein devices of the class indicated the pin is tilted to
engage a part of the coupler.
Subclass:
194
Wherein devices of the class indicated the action of gravity
moves the support to a pin-engaging position when the pin is
manually raised.
Subclass:
195
Wherein devices of the class indicated the support also acts
as means for holding the link in a horizontally extending
position.
Subclass:
196
Wherein devices of the class indicated the supporting means
is in the form of a roller.
Subclass:
197
Wherein devices of the class indicated the supporting member
is in the form of a pivoted latch.
Subclass:
198
Wherein devices of the class indicated the latch is attached
to the pin.
Subclass:
199
Wherein devices of the class indicated the latch is in the
form of a stirrup.
Subclass:
200
Wherein devices of the class indicated the supporting member
is a spring or a spring operated member.
Subclass:
201
Wherein devices of the class indicated the support also acts
as means for holding the link in a horizontally-extending
position.
Subclass:
202
Wherein devices of the class indicated the support is
horizontally sliding.
Subclass:
203
Wherein devices of the class indicated the supporting member
is moved from its supporting position by the entering link.
Subclass:
204
Wherein devices of the class indicated the supporting member
is pivoted.
Subclass:
205
Wherein devices of the class indicated means are provided for
holding or lifting the link in a horizontal position to enter
an engaging coupler.
Subclass:
206
Wherein devices of the class indicated a lifting means on one
car engages a link on an opposed car to guide it to coupled
position.
Subclass:
207
Wherein devices of the class indicated the holding or lifting
means is a lever.
Subclass:
208
That element of a coupler of the type indicated known as the
link.
Subclass:
209
Where the link is provided with means permitting its opening
at the end.
Subclass:
210
Where the link is provided with a handle.
Subclass:
211
Wherein devices of the class indicated auxiliary means are
employed for moving the lock means to permit uncoupling of
the couplers.
Subclass:
212
Wherein devices of the class indicated control of the
uncoupling means is located at a central station (usually the
cab of the engine), permitting uncoupling selectively at any
point in the train.
Subclass:
213
Wherein devices of the class indicated the uncoupling means
can be operated from either the top or side of the car.
Subclass:
214
Wherein devices of the class indicated the uncoupling means
comprises a rotating vertical shaft.
Subclass:
215
Wherein devices of the class indicated the uncoupling means
is operable from the car top only.
Subclass:
216
Wherein devices of the class indicated the coupling means
comprises a rotating vertical shaft.
Subclass:
217
Wherein devices of the class indicated the means for
operating the uncoupling means comprises a flexible element.
Subclass:
218
Wherein devices of the class indicated the uncoupling means
comprises a vertically-swinging lever.
Subclass:
219
Wherein devices of the class indicated the uncoupling means
comprises a rotating horizontal shaft.
Subclass:
220
Means secured to the end of the car and adapted to engage
similar means on another car to receive the force of impact
therebetween.
SEE OR SEARCH CLASS:
267, Spring Devices, subclass 115, for a fluid spring draft
gear cushioning device, positionable between bodies in tow
relation; and subclass 138, for a draft-gear-cushioning
spring device, other than the fluid spring type.
Subclass:
221
Wherein devices of the class indicated the buffer is
resiliently supported.
Subclass:
222
Wherein devices of the class indicated the construction of
the buffer adapts it for use as a whole or part of the car
platform.
Subclass:
223
Wherein devices of the class indicated the buffer is
supported by a fluid cushion.
Subclass:
224
Means whereby a motive power on one track can be used to move
a car or cars located on a parallel track.
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