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Classification Resources
 

 [Search a list of Patent Appplications for class 238]   CLASS 238,RAILWAYS: SURFACE TRACK
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SECTION I - CLASS DEFINITION

This class includes patents relating to surface railway-tracks which in their make-up include road-bed structure, rail-supporting elements­­­­­­­—such as stringers, ties, rail-chairs, and tie-plates-rails—rail-joints, rail-bonds, track and rail-joint fastenings, and electric insulation as applied to ties, rails, rail-joints, rail-bonds, and track-fastenings.

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

This class does not include patents for switches, rail-crossings, and frogs, which will be found in Class 246, Railway Switches and Signals.

Tracks for panel hangers and travelers are in Class 16, Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.), subclass 96.

SUBCLASSES

[List of Patents for class 238 subclass 1]    1MISCELLANEOUS:
 This subclass is indented under the class definition.  Patents containing subject matter not properly belonging in any of the following subclasses.
  
[List of Patents for class 238 subclass 2]    2ROADBED:
 This subclass is indented under the class definition.  Subject matter including railroad ballast structure and form for the reception of the railway-track.

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428Stock Material or Miscellaneous Articles,   subclasses 544+ for nominally claimed metallic track, that is, having some structural description, but insufficient to limit its use to that of a railway track, element, adjunct, or material.
  
[List of Patents for class 238 subclass 3]    3Highway track:
 This subclass is indented under subclass 2.  Subject matter including street-railway track having defined ways for nonflanged vehicle-wheels and ordinary street-vehicles.
  
[List of Patents for class 238 subclass 4]    4Metallic:
 This subclass is indented under subclass 3.  Subject matter including structure that is restricted to track using metallic rails or paths for the wheels.

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428Stock Material or Miscellaneous Articles,   subclasses 544+ for nominally claimed metallic track, that is, having some structural description, but insufficient to limit its use to that of a railway track, element, adjunct, or material.
  
[List of Patents for class 238 subclass 5]    5Concrete:
 This subclass is indented under subclass 3.  Subject matter including structure that is restricted to track using concrete or plastic-compound rails or paths for the wheels.
  
[List of Patents for class 238 subclass 6]    6Continuous:
 This subclass is indented under subclass 2.  Subject matter including structure wherein the surface of the road-bed has a continuous wooden or metal covering between the rails, or the covering may also extend outside the rail-bases.
  
[List of Patents for class 238 subclass 7]    7Concrete:
 This subclass is indented under subclass 6.  Subject matter including structure wherein the road-bed covering is of concrete or other plastic compound.
  
[List of Patents for class 238 subclass 8]    8Street crossing:
 This subclass is indented under subclass 2.  Subject matter including highway crossings at grade over railways to facilitate the passage of highway vehicular traffic over railway-tracks.

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9,
  
[List of Patents for class 238 subclass 9]    9Rail paving:
 This subclass is indented under subclass 2.  Subject matter including special forms of paving and paving-blocks for use around railway-rails in order to bring the rail-treads substantially flush with a highway-surface, so that the rails shall not obstruct highway traffic, as in the case of street-railway tracks.

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7,
  
[List of Patents for class 238 subclass 10]    10PORTABLE TRACK:
 This subclass is indented under the class definition.  Subject matter including railway-track designed for temporary use in different places and usually made in portable sections.

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446Amusement Devices: Toys,   subclasses 168+ for a toy trackway for an unattached rolling or tumbling element (e.g., marble), subclasses 444+ for the combination of a toy vehicle and toy trackway for physically guiding the vehicle, and subclass 455 for a toy vehicle combined with trackway having a conductor therealong which transmits control signals to the vehicle.
  
[List of Patents for class 238 subclass 11]    11Embankment or fill:
 This subclass is indented under subclass 10.  Subject matter including portable railway-track, usually adapted to hang over the edge or end of an embankment or fill to facilitate the dumping of earth or spoil thereover.
  
[List of Patents for class 238 subclass 12]    12Crossovers:
 This subclass is indented under subclass 10.  Subject matter including portable switch members for temporary connection of two parallel railway-tracks.
  
[List of Patents for class 238 subclass 13]    13House moving:
 This subclass is indented under subclass 10.  Subject matter including portable track for house-moving trucks or rollers.
  
[List of Patents for class 238 subclass 14]    14Traction mats:
 This subclass is indented under subclass 10.  Subject matter including mats or traction-pads adapted to facilitate the extraction of trucks and automobiles when stalled in sand or mud.
(1) Note. One end of the mat is usually fastened to the ground.

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152Resilient Tires and Wheels,   subclass 208 and indented subclasses for anti-skid devices for resilient tires.
180Motor Vehicles,   subclasses 7.1+ for similar structures designed to be attached to a traction wheel.
  
[List of Patents for class 238 subclass 14.05]    14.05ELECTRICAL CONNECTIONS:
 This subclass is indented under the class definition.  Subject matter including joints, couplings, rail-bonds, connector devices and other means for electrically connecting a railway rail or other surface track element to another rail or to some other stationary device or object.
(1) Note. A "rail-bond" as used herein is any connecting link, wire, cable, rod, bar, or the like, of conducting material, either rigid or flexible, having terminal portions designed for attachment to adjacent rail sections for the purpose of electrically connecting such sections.
(2) Note. For electrical connection features associated or designed for use with portable track, see the Search This Class, Subclass, notes below.
(3) Note. Mere mechanical joints designed to join two railway rails together in aligning relation for maintenance of the continuity of the track are in another subclass, even though such joints, when made of metal, inherently serve to electrically connect the rails (see See or Search This Class, Subclass below for specific cite). When such mechanical joints are provided with additional claimed features designed primarily to improve the conducting path between the rails, they will be placed in this class, subclass 14.4, or indented subclasses, and cross-referenced to the appropriate subclass for the mechanical joint.
(4) Note. For electrical connectors in general see See or Search Class notes below.
(5) Note. For electrical connection devices specially designed for transmitting electricity from a rail or other element to a vehicle or other moving object, see Search Class notes below.
(6) Note. Mere joints or couplings between wires, rods, bars and the like, or between such elements and a base, plate of head, are in Class 403, Joints and Connections. However, where one of the elements or such a joint or coupling is a railway rail or other surface track element, the following line will determine the placement of patents as between Classes 238 and 403; where the rail or other surface track element is included broadly, as by name only, with no further limitation distinguishing the same from plates, bars, etc., in general, classification is in Class 403, subclasses 230+; the following are considered to distinguish rail-bond joints from the joints classifiable in Class 403 and to cause classification in Class 238:
(a) an electrical limitation to the effect that the joint or coupling is electrically conductive or that the parts connected are electric conductors;
(b) significant structure of the rail-bond body other than the terminal or attaching portions;
(c) inclusions, broadly or specifically, of the particular portion of the rail to which the bond is attached, as, for example, the head or tread portion or the base or flange portion, excepting that the mere limitation that the bond is secured to the "web" of the rail will not prevent classification in Class 403;
(d) all plural-joint features, regardless of breadth, e.g., inclusion of both rails or both of the bond terminals;
(e) all other features specialized to rail-bed or surface track installations or pertaining to vehicular travel over the rails.
(7) Note. For methods of making rail-bonds and/or for attaching them to the rails, see the appropriate method classes, especially those in the See or Search Class notes below.

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10+,for electrical connection features associated or designed for use with portable track.
14.4+,for mechanical joints provided with additional claimed features designed primarily to improve the conducting path between the rails (see (3) Note above).
151+,for mere mechanical joints designed to join two railway rails together in aligning relation for maintenance of the continuity of the track are in this class, subclass even though such joints, when made of metal, inherently serve to electrically connect the rails.

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29Metal Working,   subclasses 505+ (see (7) note above).
191Electricity: Transmission to Vehicles, appropriate subclasses for electrical connection devices specially designed for transmitting electricity from a rail or other element to a vehicle or other moving object (see (5) Note).
219Electric Heating,   subclasses 53+ (see (7) note above).
228Metal Fusion Bonding,   appropriate subclasses (see (7) note above).
403Joints and Connections,   appropriate subclasses for mere joints or couplings between wires, rods, bars and the like, or between such elements and a base, plate of head; subclasses 230+ where the rail or other surface track element is included broadly, as by name only, with no further limitation distinguishing the same from plates, bars, etc. (also see (6) Note above).
439Electrical Connectors,   appropriate subclasses for electrical connectors in general (see (4) Note above.
  
[List of Patents for class 238 subclass 14.1]    14.1Plural or laminated bond:
 This subclass is indented under subclass 14.05.  Subject matter including electrical connections in which a plurality of rail-bonds extends from one rail to the other, or in which a single rail-bond consists of a plurality of laminations, strands, or other elements extending from one rail to the other.
(1) Note. This subclass does not include rail-bonds consisting of a single stranded cable. Also see the See or Search This Class, Subclass notes below.

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14.05+,when rail-bonds consisting of a single stranded cable are classified in accordance with their other characteristics.

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174Electricity: Conductors and Insulators,   subclass 128.1 and indented subclasses for mere plural-strand conductor structure.
403Joints and Connections,   appropriate subclasses, particularly subclasses 230+ for mere joints between two or more bond wires, rods, etc., and rail.
  
[List of Patents for class 238 subclass 14.11]    14.11On both sides of rails:
 This subclass is indented under subclass 14.1.  Subject matter including plural bond connections in which at least one bond is positioned at each side of the rail.
  
[List of Patents for class 238 subclass 14.12]    14.12Rail bond forms:
 This subclass is indented under subclass 14.05.  Subject matter including rail bonds having claimed features pertaining to the form, structure, or arrangement of the intermediate portion of the bond, i.e., the portion between the terminal or attaching portions.
(1) Note. In addition to bonds of novel configuration or cross-section, this subclass also includes bonds having connectors, vibration dampers, or other appurtenant devices associated with the intermediate portion of the bond.

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14.1,for mere laminated or plural strand bonds.

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174Electricity: Conductors and Insulators,   subclasses 126.1+ for mere conductor structure.
  
[List of Patents for class 238 subclass 14.13]    14.13Rail-head attached:
 This subclass is indented under subclass 14.05.  Subject matter including joints or couplings between a rail-bond and the head or tread portion of a rail.
(1) Note. See Notes (6) and (7) to the definition of subclass 14.05 of this class.

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14.3,for such joints or couplings involving special rail forms.
  
[List of Patents for class 238 subclass 14.14]    14.14Rail-base or flange attached:
 This subclass is indented under subclass 14.05.  Subject matter including joints or couplings between a rail-bond and the base or flange portion of a rail.
(1) Note. See Notes (6) and (7) to the definition of subclass 14.05 of this class.

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14.3,for such joints or couplings involving special rail forms.
  
[List of Patents for class 238 subclass 14.15]    14.15Molded joint:
 This subclass is indented under subclass 14.14.  Subject matter including joints or couplings in which the rail-bond is attached to the rail-base or flange by casting, welding, soldering, brazing, or other method requiring the use of molten material, or cement, or other adhesive.
(1) Note. See Note (7) to the definition of subclass 14.05 of this class.

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403Joints and Connections,   subclasses 265+ for folded joints between wires, cables, rods and the like and a base member, in general.
  
[List of Patents for class 238 subclass 14.2]    14.2From rail to noncontiguous rail or other object:
 This subclass is indented under subclass 14.05.  Subject matter including electrical connections for connecting a rail to some object or device other than a contiguous rail.
(1) Note. This subclass includes, for example, "cross-bonds" for connecting a rail to the parallel rail at the opposite side of the track, connections between rails and "bootlegs," ground connections, etc.
(2) Note. This subclass does not include mere joints between a rail and a conductor wire, cable, bond, etc., for which see particularly this class, subclasses 14.13, 14.14 and 14.15, and note 6 to the definition of subclass 14.05.
  
[List of Patents for class 238 subclass 14.3]    14.3Special rail:
 This subclass is indented under subclass 14.05.  Subject matter including electrical connections involving some special rail structure, i.e., a rail having a claimed form or structure distinguishing the same from the strandard T-head rail.
  
[List of Patents for class 238 subclass 14.4]    14.4Combined rail joint or support:
 This subclass is indented under subclass 14.05.  Subject matter including electrical connections combined with means for supporting the rail, or combined with means for mechanically joining two rails in aligning relation for maintenance of the continuity of the track, such as splice bars, fish plates, ties, chairs, etc.
(1) Note. See Note 3 to the definition of this class, subclass 14.05.
  
[List of Patents for class 238 subclass 14.5]    14.5Interposed conductor:
 This subclass is indented under subclass 14.4.  Subject matter including combinations in which the electrically conducting element is interposed or positioned between the rail and its support, or between the rails and one of the elements of the mechanical joint, for example, between the rail and the splice bar.
  
[List of Patents for class 238 subclass 14.6]    14.6Rail web contacting:
 This subclass is indented under subclass 14.5.  Subject matter including combinations in which the interposed conducting element is positioned along the web of the rail.
  
[List of Patents for class 238 subclass 14.7]    14.7With intermediate bond-wire support:
 This subclass is indented under subclass 14.4.  Combinations having means for securing or supporting the intermediate portion of a rail bond, i.e., the portion between the attaching or terminal portions.

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248Supports,   subclasses 65+ for bond-wire supports claimed, per se.
  
[List of Patents for class 238 subclass 14.8]    14.8Dowel pin or inserted key type:
 This subclass is indented under subclass 14.05.  Subject matter including electrical connections including a dowel pin, key, or similar element inserted in aligned holes of sockets formed in the abutting ends of the rails.

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179,for mere mechanical rail-joints employing similar elements.

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403Joints and Connections,   subclasses 292+ for mere rod joints or couplings employing similar elements.
  
[List of Patents for class 238 subclass 14.9]    14.9Protected bond:
 This subclass is indented under subclass 14.05.  Subject matter including devices for protecting the rail bond or its terminal portions from mechanical injury, including means for deflecting parts of rolling stock away from the bond.

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14.4+,for arrangements whereby the bond is enclosed or protected by elements of a rail-joint or support.
312,for protective boxes or closures designed to protect rail-joints or other surface track elements.
  
[List of Patents for class 238 subclass 15]    15TRACK CURVES:
 This subclass is indented under the class definition.  Subject matter including curved rails and rail arrangement for facilitating the passage of railway rolling-stock around curves.
  
[List of Patents for class 238 subclass 16]    16Rollers:
 This subclass is indented under subclass 15.  Subject matter including rails on curves provided with antifriction-rollers for engagement with the vehicle-wheels.

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492Roll or Roller,   appropriate subclasses for a roll, per se, not elsewhere provided for, and see the notes thereunder.
  
[List of Patents for class 238 subclass 17]    17GUARDRAILS:
 This subclass is indented under the class definition.  Subject matter including rails arranged parallel to and adjacent the traction-rails to prevent the vehicle-wheels from leaving the traction-rails.
  
[List of Patents for class 238 subclass 18]    18Spring:
 This subclass is indented under subclass 17.  Subject matter including guard-rails adapted to yield laterally against spring resistance when engaged by a vehicle-wheel.
  
[List of Patents for class 238 subclass 19]    19Under main rail:
 This subclass is indented under subclass 17.  Subject matter including guard-rails having integral parts underlying the adjacent traction-rail, so that the weight of the vehicle will tend to hold the guard-rail in place.
  
[List of Patents for class 238 subclass 20]    20Two-rail chair:
 This subclass is indented under subclass 17.  Subject matter including rail-chairs or shoes designed to rest upon ties and each support a traction and a guard rail.
  
[List of Patents for class 238 subclass 21]    21Two-rail clamps:
 This subclass is indented under subclass 17.  Subject matter including rail clamps or yokes, each designed to hold a traction and a guard rail; these clamps do not rest upon the ties, but depend between them.
  
[List of Patents for class 238 subclass 22]    22Spacers:
 This subclass is indented under subclass 17.  Subject matter including spacing-blocks between the main guard rails.

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17,through 21.
  
[List of Patents for class 238 subclass 23]    23Tapered:
 This subclass is indented under subclass 22.  Subject matter wherein the spacing blocks are formed of tapering wedge-blocks for adjustment of the guard-rails.
  
[List of Patents for class 238 subclass 24]    24STRINGERS:
 This subclass is indented under the class definition.  Subject matter including longitudinal beams and members arranged beneath and parallel with the rails for supporting the latter; also beam members parallel with the rails for stiffening the road-bed structure.
  
[List of Patents for class 238 subclass 25]    25Concrete:
 This subclass is indented under subclass 24.  Subject matter wherein the longitudinal beams are made of concrete or plastic compounds.
  
[List of Patents for class 238 subclass 26]    26Metallic:
 This subclass is indented under subclass 24.  Subject matter wherein the longitudinal members are metallic.

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428Stock Material or Miscellaneous Articles,   subclasses 544+ for nominally claimed metallic track, that is, having some structural description, but insufficient to limit its use to that of a railway track, element, adjunct, or material.
  
[List of Patents for class 238 subclass 27]    27TIE ARRANGEMENT:
 This subclass is indented under the class definition.  Subject matter including relative arrangement of cross-ties for support of the rails.
  
[List of Patents for class 238 subclass 28]    28Diagonal:
 This subclass is indented under subclass 27.  Subject matter including ties diagonally arranged between the rails.
  
[List of Patents for class 238 subclass 29]    29TIES:
 This subclass is indented under the class definition.  Subject matter including transverse rail-supporting beams or members for parallel railway-rails.
  
[List of Patents for class 238 subclass 30]    30Forms:
 This subclass is indented under subclass 29.  Variations in longitudinal form of railway-ties.

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54,through 81 for variations in cross-sections of railway-tiess.

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428Stock Material or Miscellaneous Articles,   subclasses 544+ for nominally claimed metallic track, that is, having some structural description, but insufficient to limit its use to that of a railway track, element, adjunct or material.
  
[List of Patents for class 238 subclass 31]    31Jointed:
 This subclass is indented under subclass 30.  Subject matter wherein the ties have joints in the tie-body between the rails.

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35,for multiplicity of tie-joints.
108,for insulated tie-joints.
  
[List of Patents for class 238 subclass 32]    32Hinged:
 This subclass is indented under subclass 31.  Subject matter wherein the joints are flexible or hinged.
  
[List of Patents for class 238 subclass 33]    33Pivoted ends:
 This subclass is indented under subclass 31.  Subject matter wherein the ends of the tie are pivotally connected to the middle portion of the tie, adjacent each rail-base.

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279,
  
[List of Patents for class 238 subclass 34]    34Detachable ends:
 This subclass is indented under subclass 30.  Subject matter wherein each end of the tie is detachably connected to the main tie-body adjacent the rail-seats.
  
[List of Patents for class 238 subclass 35]    35Multiple section:
 This subclass is indented under subclass 30.  Subject matter wherein the tie is transversely divided into three or more sections.

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31,and 32.
  
[List of Patents for class 238 subclass 36]    36Vertical sandwich:
 This subclass is indented under subclass 30.  Subject matter wherein the tie is made up of a plurality of longitudinal vertical platelike members fastened together.
  
[List of Patents for class 238 subclass 37]    37Horizontal sandwich:
 This subclass is indented under subclass 30.  Subject matter wherein the tie is made up of a plurality of longitudinal horizontal platelike members fastened together.
  
[List of Patents for class 238 subclass 38]    38Twin:
 This subclass is indented under subclass 30.  Subject matter wherein the tie is made up of twin or duplicate longitudinal members usually so connected as to lock the rails thereto.
  
[List of Patents for class 238 subclass 39]    39Complementary sliding lock:
 This subclass is indented under subclass 30.  Subject matter including ties made up of two longitudinal sections, one of which is the complement of the other; usually one slides into the other and the reciprocal sliding of the two parts locks the rail in place.
  
[List of Patents for class 238 subclass 40]    40Truss:
 This subclass is indented under subclass 30.  Subject matter including ties including a truss-rod and strut or ties of truss form, so as to form a truss in the engineering sense.

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86,
  
[List of Patents for class 238 subclass 41]    41Integral:
 This subclass is indented under subclass 40.  Subject matter wherein the truss is integrally formed.

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86,
  
[List of Patents for class 238 subclass 42]    42Stringer ends:
 This subclass is indented under subclass 30.  Subject matter including cross-ties between rails having end portions at right angles thereto and parallel with the rails, which may or may not be rectangular frames.

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47,
  
[List of Patents for class 238 subclass 43]    43Loop or hook ends:
 This subclass is indented under subclass 30.  Subject matter wherein the ties are provided with loop or hook shaped ends adjacent the rail-seats.
  
[List of Patents for class 238 subclass 44]    44Spread ends:
 This subclass is indented under subclass 30.  Subject matter wherein the ties are provided with Y-shaped or double ends to form extended rail-seats.
  
[List of Patents for class 238 subclass 45]    45Special:
 This subclass is indented under subclass 30.  Subject matter including ties for supporting rails and switch-stands or track elements other than the rails.
  
[List of Patents for class 238 subclass 46]    46Rail joint:
 This subclass is indented under subclass 45.  Subject matter including ties structurally modified, so as to practically form portions of rail-joints.
  
[List of Patents for class 238 subclass 47]    47Bridge joint:
 This subclass is indented under subclass 45.  Subject matter including tie modification for rail-joints bridged between two ties.

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42,
  
[List of Patents for class 238 subclass 48]    48Spring:
 This subclass is indented under subclass 45.  Subject matter including ties so formed that the top portion, carrying two rails, is adapted to have a spring-yielding movement relatively to the bottom section of the tie.

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40,
283,284, and 285, for spring-bearings in ties, permitting the rails to have spring motion independently of each other.
  
[List of Patents for class 238 subclass 49]    49Old rail:
 This subclass is indented under subclass 45.  Subject matter including ties in which old rails are utilized to make up the ties.
  
[List of Patents for class 238 subclass 50]    50Rods:
 This subclass is indented under subclass 29.  Subject matter including rods for the cross connection of the rails, stringers, or pot-sleepers.
  
[List of Patents for class 238 subclass 51]    51Rail-base:
 This subclass is indented under subclass 50.  Subject matter including rods or bars cross-connecting two rails passing beneath and in contact with the rail-bases; these rods are usually between the ties.

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116,and 288, for rods adapted to rest upon the ties and provided with flat rail-seats.
  
[List of Patents for class 238 subclass 52]    52Turnbuckle:
 This subclass is indented under subclass 50.  Subject matter including the same as subclasses 50 and 51 with turn-buckles for coupling the rod-sections.
  
[List of Patents for class 238 subclass 53]    53Screw rod:
 This subclass is indented under subclass 50.  Subject matter including the same as subclasses 51 and 52 for utilizing nuts and threaded ends other than turn-buckles for adjustments.
  
[List of Patents for class 238 subclass 54]    54Cross section:
 This subclass is indented under subclass 29.  Subject matter including cross-sectional forms of integral ties not otherwise classified below.
  
[List of Patents for class 238 subclass 55]    55Two-part:
 This subclass is indented under subclass 54.  Subject matter including ties made up of two longitudinal parts of cross-sectional form not otherwise classified below.

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38,
  
[List of Patents for class 238 subclass 56]    56Channels:
 This subclass is indented under subclass 55.  Subject matter including ties made up of pairs of channel-bars.

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428Stock Material or Miscellaneous Articles,   subclass 595 for metallic stock material of uniform thickness and of channel shape.
  
[List of Patents for class 238 subclass 57]    57I-beam:
 This subclass is indented under subclass 55.  Subject matter including ties made up of pairs of I-beams.

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428Stock Material or Miscellaneous Articles,   subclass 598 for metallic stock of "T" or "I" cross-section.
  
[List of Patents for class 238 subclass 58]    58Angles or T’s:
 This subclass is indented under subclass 55.  Subject matter including ties made up of pairs of angle or T irons.

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428Stock Material or Miscellaneous Articles,   subclass 598 for metallic stock having an I-type cross-section, and subclass 603 for metallic stock of L-type cross section.
  
[List of Patents for class 238 subclass 59]    59Channel flange down:
 This subclass is indented under subclass 54.  Subject matter including ties made up of singles bars of channel cross-section with downwardly-projecting flanges.

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428Stock Material or Miscellaneous Articles,   subclass 595 for metallic stock material of uniform thickness and of channel shape.
  
[List of Patents for class 238 subclass 60]    60Sheet metal:
 This subclass is indented under subclass 59.  Subject matter wherein the channels are made from rolled sheet metal and bent to shape.
  
[List of Patents for class 238 subclass 61]    61Rolled:
 This subclass is indented under subclass 59.  Subject matter wherein the channels are of rolled metallic sections.
  
[List of Patents for class 238 subclass 62]    62Channel flange up:
 This subclass is indented under subclass 54.  Subject matter including ties made of single bars of channel cross-section with upwardly-projecting flanges.

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428Stock Material or Miscellaneous Articles,   subclass 595 for metallic stock material of uniform thickness and of channel shape.
  
[List of Patents for class 238 subclass 63]    63Sheet metal:
 This subclass is indented under subclass 62.  Subject matter wherein the channels are made from rolled sheet metal and bent to shape.
  
[List of Patents for class 238 subclass 64]    64Rolled:
 This subclass is indented under subclass 62.  Subject matter wherein the channels are of rolled metallic sections.
  
[List of Patents for class 238 subclass 65]    65I-beam:
 This subclass is indented under subclass 54.  Subject matter including ties having cross-sectional form of I-beam shape.

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428Stock Material or Miscellaneous Articles,   subclass 598 for metallic stock of "T" or "I" cross-section.
  
[List of Patents for class 238 subclass 66]    66Rolled:
 This subclass is indented under subclass 65.  Subject matter wherein the I-beams are rolled metallic sections.
  
[List of Patents for class 238 subclass 67]    67T-shape:
 This subclass is indented under subclass 54.  Subject matter including ties having cross-sectional form of T-shape.

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428Stock Material or Miscellaneous Articles,   subclass 598 for metallic stock of "T" or "I" cross-section.
  
[List of Patents for class 238 subclass 68]    68Cast:
 This subclass is indented under subclass 67.  Subject matter wherein the T-beams are of cast metal.
  
[List of Patents for class 238 subclass 69]    69Inverted:
 This subclass is indented under subclass 67.  Subject matter including ties having cross-sectional form of inverted-T shape.
  
[List of Patents for class 238 subclass 70]    70Tubular:
 This subclass is indented under subclass 54.  Subject matter including ties formed of longitudinal tubular members.
  
[List of Patents for class 238 subclass 71]    71Multiple:
 This subclass is indented under subclass 70.  Subject matter including ties having a plurality of longitudinal tubular apertures therethrough.
  
[List of Patents for class 238 subclass 72]    72Rectangular:
 This subclass is indented under subclass 70.  Subject matter including ties formed with rectangular tubular apertures therethrough.
  
[List of Patents for class 238 subclass 73]    73Vertical telescope:
 This subclass is indented under subclass 72.  Subject matter including ties of rectangular box form with overlapping side plates having vertical telescopic engagement.
  
[List of Patents for class 238 subclass 74]    74Separate lid and bottom:
 This subclass is indented under subclass 72.  Subject matter including ties of rectangular box form having separately-formed top and bottom plates.
  
[List of Patents for class 238 subclass 75]    75Separate bottom:
 This subclass is indented under subclass 72.  Subject matter including ties of rectangular box form having separately-formed bottom plates.
  
[List of Patents for class 238 subclass 76]    76Separate lid:
 This subclass is indented under subclass 72.  Subject matter wherein ties of rectangular box are formed with separate cover-plates.
  
[List of Patents for class 238 subclass 77]    77Folded sheet:
 This subclass is indented under subclass 72.  Subject matter wherein ties of rectangular box shape are formed by folding up a sheet metal.
  
[List of Patents for class 238 subclass 78]    78Integral:
 This subclass is indented under subclass 72.  Subject matter wherein ties of rectangular box shape are integrally formed.
  
[List of Patents for class 238 subclass 79]    79Cast:
 This subclass is indented under subclass 78.  Subject matter wherein ties are integrally formed by casting.
  
[List of Patents for class 238 subclass 80]    80Triangular:
 This subclass is indented under subclass 70.  Subject matter including ties which are triangular in cross-section.
  
[List of Patents for class 238 subclass 81]    81Circular:
 This subclass is indented under subclass 70.  Subject matter including ties which are circular or elliptical in cross-section.
  
[List of Patents for class 238 subclass 82]    82Corrugated:
 This subclass is indented under subclass 29.  Subject matter wherein ties are formed longitudinally from corrugated plates.
  
[List of Patents for class 238 subclass 83]    83Nonmetallic:
 This subclass is indented under subclass 29.  Subject matter including ties involving nonmetallic substance in their structure.
  
[List of Patents for class 238 subclass 84]    84Plastic compound:
 This subclass is indented under subclass 83.  Subject matter wherein ties are formed of cement, concrete, or other plastic compounds.

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106Compositions: Coating or Plastic,   appropriate subclasses for special compositions of plastics for tie manufacture.
  
[List of Patents for class 238 subclass 85]    85Internal reinforcements:
 This subclass is indented under subclass 84.  Subject matter including metallic or wooden stiffening members embedded in the interior of plastic-compound ties to strengthen the same.
  
[List of Patents for class 238 subclass 86]    86Truss:
 This subclass is indented under subclass 85.  Subject matter including cement-tie internal-reinforcement members of truss form.
  
[List of Patents for class 238 subclass 87]    87Tube:
 This subclass is indented under subclass 85.  Subject matter including tubular reinforcement members for cement ties.
  
[List of Patents for class 238 subclass 88]    88Cast:
 This subclass is indented under subclass 85.  Subject matter including internal-reinforcement members of cast metal for cement ties.
  
[List of Patents for class 238 subclass 89]    89Rolled section:
 This subclass is indented under subclass 85.  Subject matter including internal-reinforcement members of rolled metallic sections for cement ties.
  
[List of Patents for class 238 subclass 90]    90Closed loop:
 This subclass is indented under subclass 85.  Subject matter including internal-reinforcement members of loop form for cement ties.
  
[List of Patents for class 238 subclass 91]    91Rods:
 This subclass is indented under subclass 85.  Subject matter including reinforcing rods and bars for cement ties.
  
[List of Patents for class 238 subclass 92]    92Crosstied:
 This subclass is indented under subclass 91.  Subject matter wherein the rods or bars are cross-connected by small frames or wire-tied.
  
[List of Patents for class 238 subclass 93]    93Foraminous sheet:
 This subclass is indented under subclass 85.  Subject matter including wire-netting, expanded metal, or perforated sheet metal for cement-tie reinforcement.
  
[List of Patents for class 238 subclass 94]    94Wire:
 This subclass is indented under subclass 85.  Subject matter including wire used for cement-tie reinforcement.
  
[List of Patents for class 238 subclass 95]    95Armored:
 This subclass is indented under subclass 84.  Subject matter including exterior metallic protective and strengthening members for cement ties.
  
[List of Patents for class 238 subclass 96]    96Box:
 This subclass is indented under subclass 95.  Subject matter including metal box casings for cement ties.
  
[List of Patents for class 238 subclass 97]    97Tube:
 This subclass is indented under subclass 95.  Subject matter including tubular casings for cement ties.
  
[List of Patents for class 238 subclass 98]    98Side and bottom:
 This subclass is indented under subclass 95.  Subject matter including side and bottom cover-plates for cement ties.
  
[List of Patents for class 238 subclass 99]    99Side and top:
 This subclass is indented under subclass 95.  Subject matter including side casings and top cover-plates for cement ties.
  
[List of Patents for class 238 subclass 100]    100Sides:
 This subclass is indented under subclass 95.  Subject matter including side casings for cement ties.
  
[List of Patents for class 238 subclass 101]    101Top:
 This subclass is indented under subclass 95.  Subject matter including top cover-plates for cement ties.

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116,
  
[List of Patents for class 238 subclass 102]    102Top and bottom:
 This subclass is indented under subclass 95.  Subject matter including top and bottom cover-plates for cement ties.
  
[List of Patents for class 238 subclass 103]    103Bottom:
 This subclass is indented under subclass 95.  Subject matter including bottom cover-plates for cement ties.
  
[List of Patents for class 238 subclass 104]    104End closures:
 This subclass is indented under subclass 29.  Subject matter including end covers and caps for tubular ties and tie-casings.
  
[List of Patents for class 238 subclass 105]    105Spacers:
 This subclass is indented under subclass 29.  Subject matter including rods, bars and blocks for keeping the ties properly spaced apart;. these spacers are not designed as rail or load carrying members.
  
[List of Patents for class 238 subclass 106]    106Anchor lugs and ribs:
 This subclass is indented under subclass 29.  Subject matter including anchor lugs, ribs, and flanges on ties for preventing their shifting longitudinally in their beds.
  
[List of Patents for class 238 subclass 107]    107Insulation:
 This subclass is indented under subclass 29.  Subject matter including railway-tie, tie-plate, and rail insulation.
(1) Note. This does not include rail-joint insulation, which may be found in this class, subclasses 152 to 161, inclusive.
  
[List of Patents for class 238 subclass 108]    108Sectional tie:
 This subclass is indented under subclass 107.  Subject matter including insulation for divided metal tie-sections at their joints between the rails.
  
[List of Patents for class 238 subclass 109]    109PEDESTALS:
 This subclass is indented under the class definition.  Subject matter including individual supporting-blocks or pot-sleepers adapted to be embedded in the road-bed or ballast and support the rails; two of these blocks or pot-sleepers act as a substitute for a tie, but they are not designed to have a cross-beam action, like a tie.
  
[List of Patents for class 238 subclass 110]    110Pot:
 This subclass is indented under subclass 109.  Subject matter wherein the rail-supports are inverted pots or basins.
  
[List of Patents for class 238 subclass 111]    111Cast:
 This subclass is indented under subclass 110.  Subject matter limited to pots or basins of cast metal.

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428Stock Material or Miscellaneous Articles,   subclasses 544+ for nominally claimed metallic track, that is, having some structural description, but insufficient to limit its use to that of a railway track, element, adjunct, or material.
  
[List of Patents for class 238 subclass 112]    112Wrought plate:
 This subclass is indented under subclass 109.  Subject matter wherein each rail is supported on a piece of sheet metal.

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428Stock Material, or Miscellaneous Articles,   subclasses 544+ for nominally claimed metallic track, that is, having some structural description, but insufficient to limit its use to that of a railway track, element, adjunct, or material.
  
[List of Patents for class 238 subclass 113]    113Inverted "U":
 This subclass is indented under subclass 112.  Subject matter wherein the sheet-metal rail-support is of inverted-U-shaped form.
  
[List of Patents for class 238 subclass 114]    114Tube or box:
 This subclass is indented under subclass 109.  Subject matter wherein the rail-support is in the form of tubular section or box-shaped.
  
[List of Patents for class 238 subclass 115]    115Concrete block:
 This subclass is indented under subclass 109.  Subject matter wherein each rail is supported on a concrete block.
  
[List of Patents for class 238 subclass 116]    116Chair bar:
 This subclass is indented under subclass 115.  Subject matter wherein the concrete blocks are connected transversely of the rails by bars, upon which the rails are seated.
  
[List of Patents for class 238 subclass 117]    117Bar core:
 This subclass is indented under subclass 115.  Subject matter wherein the concrete blocks are connected transversely of the rails by bars, which latter pass centrally through the concrete blocks.
  
[List of Patents for class 238 subclass 118]    118Wood block:
 This subclass is indented under subclass 109.  Subject matter wherein each rail is supported on a wooden block.
  
[List of Patents for class 238 subclass 119]    119Pier:
 This subclass is indented under subclass 109.  Subject matter wherein each rail is supported on a pedestal of pier-like form.
  
[List of Patents for class 238 subclass 120]    120Screw:
 This subclass is indented under subclass 109.  Subject matter wherein each rail-pedestal has a helical or screw base for engagement with the road-bed.
  
[List of Patents for class 238 subclass 121]    121RAIL ARRANGEMENT:
 This subclass is indented under the class definition.  Subject matter including relative arrangement of the rails in a two-rail track.
  
[List of Patents for class 238 subclass 122]    122RAILS:
 This subclass is indented under the class definition.  Subject matter including railway-rails not otherwise classified below.
  
[List of Patents for class 238 subclass 123]    123Rack:
 This subclass is indented under subclass 122.  Subject matter including rails having toothed or rack tread-surfaces, usually for use on steep grades with a locomotive having a cog drive-wheel.
  
[List of Patents for class 238 subclass 124]    124Turnout:
 This subclass is indented under subclass 122.  Subject matter including street-railway rails provided with notches or lugs to facilitate the turning out of a wagon from the street-railway track.
  
[List of Patents for class 238 subclass 125]    125Vignoles:
 This subclass is indented under subclass 122.  Subject matter including this type of rail which is the standard rail of the railway in the United States; the rail cross-section shows a bulb-shaped head, a vertical web, and an extended flat base.
  
[List of Patents for class 238 subclass 126]    126T-base insert:
 This subclass is indented under subclass 125.  Subject matter wherein the rail-base has a base-bar insert of inverted-T form.
  
[List of Patents for class 238 subclass 127]    127Channel:
 This subclass is indented under subclass 122.  Subject matter including rails that in cross-section are of inverted U, V, or arc-shaped sections.
  
[List of Patents for class 238 subclass 128]    128Integral:
 This subclass is indented under subclass 127.  Subject matter wherein the rail is integrally formed.
  
[List of Patents for class 238 subclass 129]    129Trough and filler:
 This subclass is indented under subclass 122.  Subject matter including rails formed of trough-shaped members or channel-irons adapted to receive tread-surface fillers of wood or metal, so as to substantially fill the troughs or channels.
  
[List of Patents for class 238 subclass 130]    130T-rail:
 This subclass is indented under subclass 122.  Subject matter including rails having expanded flat or bulb heads with single depending vertical webs.

SEE OR SEARCH CLASS:

428Stock Material or Miscellaneous Articles,   subclass 598 for metallic stock of "T" or "I" cross-section.
  
[List of Patents for class 238 subclass 131]    131Webless or flat:
 This subclass is indented under subclass 122.  Subject matter including flat rails without any vertical supporting-webs.
  
[List of Patents for class 238 subclass 132]    132Reversible:
 This subclass is indented under subclass 132.  Subject matter wherein the rail heads and bases are identical, so that the rail-treads are reversible.
  
[List of Patents for class 238 subclass 133]    133Triple head:
 This subclass is indented under subclass 132.  Subject matter wherein the rail-heads are carried by three webs radiating from a central axis and spaced one hundred and twenty degrees apart; any one of these heads may be placed upward for traction purposes.
  
[List of Patents for class 238 subclass 134]    134Tubular:
 This subclass is indented under subclass 122.  Subject matter including rails tubular in form.
  
[List of Patents for class 238 subclass 135]    135Integral:
 This subclass is indented under subclass 134.  Subject matter wherein the tubular rails are integral in construction.
  
[List of Patents for class 238 subclass 136]    136Step tread:
 This subclass is indented under subclass 122.  Subject matter including rails having heads of step-tread form for street-railway use, so that the wheels of street-vehicles may run upon the depressed tread-surface.

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130,
  
[List of Patents for class 238 subclass 137]    137Biped:
 This subclass is indented under subclass 122.  Subject matter wherein the rail-heads have single vertical webs bifurcated at the lower portions, forming pairs of diverging webs or feet.
  
[List of Patents for class 238 subclass 138]    138Base bar:
 This subclass is indented under subclass 122.  Subject matter wherein the underside of the rail-base is reinforced by bars or plates that, together with the rail, make a compound rail.

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26,
  
[List of Patents for class 238 subclass 139]    139Side bars:
 This subclass is indented under subclass 122.  Subject matter wherein the vertical webs of the rails are reinforced by the attachment of side bars thereto.
  
[List of Patents for class 238 subclass 140]    140Detachable guard or step:
 This subclass is indented under subclass 122.  Street-railway rails of the grooved type, with the flanged-guard detachable, and step-tread rails having detachable steps.
  
[List of Patents for class 238 subclass 141]    141Split base and web:
 This subclass is indented under subclass 122.  Subject matter including rails having their bases and webs split vertically.

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142,
  
[List of Patents for class 238 subclass 142]    142Split tread:
 This subclass is indented under subclass 122.  Subject matter including rail-head treads split vertically through the tread-surface.
  
[List of Patents for class 238 subclass 143]    143Detachable head:
 This subclass is indented under subclass 122.  Subject matter including rails in which the head is detachable from lower portion of the rail.
  
[List of Patents for class 238 subclass 144]    144Lap web:
 This subclass is indented under subclass 143.  Subject matter including compound rails in which the heads and bases each have projecting webs, which are lap-connected.
  
[List of Patents for class 238 subclass 145]    145Grooved web:
 This subclass is indented under subclass 143.  Subject matter wherein the rail-heads have pairs of projecting webs or single-grooved webs for connection to the rail-bases.
  
[List of Patents for class 238 subclass 146]    146Integral grooved base:
 This subclass is indented under subclass 143.  Subject matter including compound rails, the base portions of which are grooved for the reception of the upper portions of the rails.
  
[List of Patents for class 238 subclass 147]    147Web clamp:
 This subclass is indented under subclass 143.  Subject matter including compound rails having twin-angle base-sections, between which the rail-head web is clamped.
  
[List of Patents for class 238 subclass 148]    148Tread surfaces:
 This subclass is indented under subclass 122.  Subject matter including special formation of rail tread-surfaces for effective engagement with wheel tread-surfaces.

SEE OR SEARCH THIS CLASS, SUBCLASS:

16,for rail tread-surfaces with rollers.
  
[List of Patents for class 238 subclass 149]    149Webs:
 This subclass is indented under subclass 122.  Subject matter including variations in the web form of rails.
  
[List of Patents for class 238 subclass 150]    150Substance:
 This subclass is indented under subclass 122.  Subject matter including materials, substances, compositions, or alloys for rails.

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75Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions,   etc., appropriate subclasses for rails claimed broadly by name only and defined solely by their metal or alloy composition even though there is no claim to the metal or alloy, per se. Metal or alloy compositions used in rails are also found in Class 75.
148Metal Treatment,   appropriate subclasses for rails claimed broadly by name only and defined significantly or broadly solely by their metal or alloy composition and including a specific Class 148 treatment of the metal or alloy, or for products distinguished only by the internal structure or characteristics of the metals, metallic compositions or alloys comprising such structures.
428Stock Material or Miscellaneous Articles,   subclasses 544+ for nominally claimed metallic track, that is, having some structural description, but insufficient to limit its use to that of a railway track, element, adjunct, or material.
  
[List of Patents for class 238 subclass 151]    151RAIL JOINTS:
 This subclass is indented under the class definition.  Subject matter including means for joining two railway-rails together in aligning relation for maintenance of the continuity of the track.

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14.4+,for rail-joints combined with means for electrically joining the rails.
  
[List of Patents for class 238 subclass 152]    152Insulated:
 This subclass is indented under subclass 151.  Subject matter including insulating means for rail-joints to prevent electric current from passing through the joint from one to the other of the joined rails.
  
[List of Patents for class 238 subclass 153]    153Transverse abutting:
 This subclass is indented under subclass 152.  Subject matter including the rail-joint members of the transverse-abutting type, with insulation between the abutting faces.
  
[List of Patents for class 238 subclass 154]    154Chair:
 This subclass is indented under subclass 152.  Subject matter including insulated rail-joints of the chair type, which include base-seats for the abutting rail ends and a flange on one or both sides of the rail ends made integral with a base seat portion; these flanges project upwardly and are higher than the highest portion of the rail-base section.
  
[List of Patents for class 238 subclass 155]    155Twin:
 This subclass is indented under subclass 154.  Subject matter including insulated rail-joints of the twin-chair type, the two parts of which are in underlapping engagement with the rail-base.
  
[List of Patents for class 238 subclass 156]    156Base plate or bolted:
 This subclass is indented under subclass 155.  Subject matter wherein a separate base-plate is used, which is upheld by the twin-chair sections or in which the twin-chair sections are base bolted together.
  
[List of Patents for class 238 subclass 157]    157Angle:
 This subclass is indented under subclass 154.  Subject matter including insulated joints of the angle-chair type in which the rail ends are seated on one of the angle-flanges and the other angle-flange projects upwardly along the side of the rail ends.
  
[List of Patents for class 238 subclass 158]    158Weber type:
 This subclass is indented under subclass 157.  Insulated joints of the Weber type in which a yieldable joint of splice-bar type is supported upon an angle-chair.
  
[List of Patents for class 238 subclass 159]    159Splice bars:
 This subclass is indented under subclass 152.  Subject matter including insulation-joints of the splice-bar type; these bars are either plates bolted to the rail-webs or these plates may have angular extensions resting upon the tops of the rail-base sections.
  
[List of Patents for class 238 subclass 160]    160With base plate:
 This subclass is indented under subclass 159.  Subject matter including additions of a base-plate underlying the rail-bases.
  
[List of Patents for class 238 subclass 161]    161In channel:
 This subclass is indented under subclass 159.  Subject matter wherein insulated rail-joints are seated in channel-iron sections which may be integral or made up of two angles underlying the joint.
  
[List of Patents for class 238 subclass 161.5]    161.5Lubricant- or liquid-containing:
 This subclass is indented under subclass 151.  Subject matter including rail joints which include means associated therewith for confining or receiving a liquid, a liquid bearing substance, or any film-forming material which serves as a lubricant.

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163,for rail joints that contain solid material which was positioned within the joint while in a molten or plastic state.

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184Lubrication,   subclasses 3.1+ for apparatus for applying lubricant to a rail, subclass 5, for slide bearings having lubricating means incorporated therein, and subclass 100 for slide bearing lubricators.
384Bearings,   subclass 13 for a linear bearing having lubricating means incorporated therein.
439Electrical Connectors,   subclasses 41+ for an electrical connector with vacuum applying means; subclasses 190+ for an electrical connector having a retainer or passageway for fluent material; and subclasses 519+ for an electrical connector with provision to restrict environmental effects thereon.
  
[List of Patents for class 238 subclass 162]    162Cast on:
 This subclass is indented under subclass 151.  Subject matter wherein the joint is formed by casting molten metal around the abutting rail ends.
  
[List of Patents for class 238 subclass 163]    163Molten filler:
 This subclass is indented under subclass 151.  Subject matter wherein after the rail-joint is in place, a molten filler, usually zinc or lead, is poured in between the joint members and the rail ends.
  
[List of Patents for class 238 subclass 164]    164Welded:
 This subclass is indented under subclass 151.  Subject matter wherein the rail ends may be welded together or the joint members may be welded to one or both of the rail ends.
  
[List of Patents for class 238 subclass 165]    165Switch rail:
 This subclass is indented under subclass 151.  Subject matter including rail-joints for swinging switch-rails constructed to allow a slight pivoting or yielding action.
  
[List of Patents for class 238 subclass 166]    166Pivoted:
 This subclass is indented under subclass 151.  Subject matter including hinged or pivoted joints permitting vertical or lateral angular movement between connected rail ends.

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174,for articulated rail-joints permitting parallel movement of rail ends.
  
[List of Patents for class 238 subclass 167]    167Compromise:
 This subclass is indented under subclass 151.  Subject matter including rail-joints for connecting abutting rail ends which differ in cross-sectional contour or size.
  
[List of Patents for class 238 subclass 168]    168Truss rod:
 This subclass is indented under subclass 151.  Subject matter including rail-joints in which a longitudinal tension-rod appears as a truss element.
  
[List of Patents for class 238 subclass 169]    169Parallel beams:
 This subclass is indented under subclass 151.  Subject matter including rail-joints having auxiliary beam members parallel to the rails for stiffening the joint.
(1) Note. This subclass does not include any beam or stiffening members upon which the rail-joint rests.
  
[List of Patents for class 238 subclass 170]    170Gravity:
 This subclass is indented under subclass 151.  Subject matter wherein the weight of the rail ends and load thereon tends to clamp the joint members more tightly to the rail.

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194,and 279.
  
[List of Patents for class 238 subclass 171]    171Expansion deflectors:
 This subclass is indented under subclass 151.  Subject matter including expansion-joints in which one rail end is deflected laterally by the other rail end to permit unavoidable rail-creeping.
  
[List of Patents for class 238 subclass 172]    172Vertical adjustment:
 This subclass is indented under subclass 151.  Subject matter including devices for vertical adjustment of the rail-joint or one of the rail ends.

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168,and 215.
  
[List of Patents for class 238 subclass 173]    173Yielding rail end:
 This subclass is indented under subclass 151.  Subject matter including rail-joints in which provision is made to permit one rail end to yield vertically independently of the other abutting rail end.
  
[List of Patents for class 238 subclass 174]    174Variable levels:
 This subclass is indented under subclass 151.  Subject matter including vertically shifting rail-joints for use with turn-bridges, turn-tables, track-scales, etc., where the level of the abutting rail ends is variable.
  
[List of Patents for class 238 subclass 175]    175Special rails:
 This subclass is indented under subclass 151.  Subject matter including rail-joints for rails of unusual cross-sectional shape.
  
[List of Patents for class 238 subclass 176]    176Channels:
 This subclass is indented under subclass 175.  Subject matter including rail-joints for rails channel-shaped in cross-section.
  
[List of Patents for class 238 subclass 177]    177T-web U-base:
 This subclass is indented under subclass 175.  Subject matter including vignoles rails with the base-sections cut off adjacent the rail ends, thus leaving a T-section, and T-section rails engaging a base-joint member with upwardly-projecting U-flanges.
  
[List of Patents for class 238 subclass 178]    178Flat:
 This subclass is indented under subclass 175.  Subject matter including rail-joints for flat or webless rails.
  
[List of Patents for class 238 subclass 179]    179Internal key:
 This subclass is indented under subclass 151.  Subject matter wherein the key joining the rail ends is entirely enclosed in the interiors of the abutting rail ends.
  
[List of Patents for class 238 subclass 180]    180Flush web key:
 This subclass is indented under subclass 151.  Subject matter wherein the key is located in the webs of the abutting rail ends and is flush with the sides of the webs over which splice-bars may be placed, or the keys alone may constitute the joint members.
  
[List of Patents for class 238 subclass 181]    181Web key splice lock:
 This subclass is indented under subclass 151.  Subject matter wherein the web-key passes transversely through and bridges both recessed rail-webs and passes at least partially through the rail splice-bars.
  
[List of Patents for class 238 subclass 182]    182Joint lug key:
 This subclass is indented under subclass 151.  Subject matter wherein the lug-key bridges recessed abutting rail-webs and is integral with one splice-bar.
  
[List of Patents for class 238 subclass 183]    183Integral web key and bars:
 This subclass is indented under subclass 151.  Subject matter wherein the lug-key bridges recessed abutting rail-webs and is integral with both splice-bars.
  
[List of Patents for class 238 subclass 184]    184Web locks:
 This subclass is indented under subclass 151.  Subject matter including lugs integral with the joint members and passing through or partially through the rail-webs, but not so that a single lug bridges the abutting rail ends.

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182,
  
[List of Patents for class 238 subclass 185]    185Z-form:
 This subclass is indented under subclass 151.  Subject matter including rail-joint plates fitting the rail-web, over-lapping the top of the rail-base, and having a downwardly-extending stiffening-flange which in no way furnishes a support for the under side of the rail-bases.
  
[List of Patents for class 238 subclass 186]    186Base-connected:
 This subclass is indented under subclass 185.  Subject matter wherein the downwardly extending stiffening flanges are connected together, but without effecting engagement with the underside of the rail-base.
  
[List of Patents for class 238 subclass 187]    187Chair:
 This subclass is indented under subclass 151.  Subject matter including rail-joints having base-sections upon which the rails are adapted to seat and further provided with one or more upwardly-extending flange-like members adjacent one or both sides of the rails.

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154,
  
[List of Patents for class 238 subclass 188]    188Twin:
 This subclass is indented under subclass 187.  Subject matter wherein the joint members are in two similar sections with their base-sections each extending underneath the rail-bases.

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155,
  
[List of Patents for class 238 subclass 189]    189Base stiffener:
 This subclass is indented under subclass 188.  Subject matter wherein the sections under the rail-base have depending stiffening members.
  
[List of Patents for class 238 subclass 190]    190With base plate:
 This subclass is indented under subclass 188.  Subject matter wherein the twin-joint members underlap and uphold a single base-plate.

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156,
  
[List of Patents for class 238 subclass 191]    191Base-bolted:
 This subclass is indented under subclass 188.  Subject matter wherein the chair parts are secured together by bolts or other fastenings under the rail-base and also girder-type twin chairs which engage the bottom of the rail and have the girder-flanges connected.

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156,
  
[List of Patents for class 238 subclass 192]    192Lapping base sections:
 This subclass is indented under subclass 188.  Subject matter wherein the twin-joint members overlap either laterally or vertically beneath the rail-bases.
  
[List of Patents for class 238 subclass 193]    193Interlocked base sections:
 This subclass is indented under subclass 188.  Subject matter wherein the twin-joint members interlock beneath the rail-bases.The interlocking may be flanged, lugged, or hooked.
  
[List of Patents for class 238 subclass 194]    194Longitudinal keys:
 This subclass is indented under subclass 193.  Subject matter including longitudinal keys for locking the members together.
  
[List of Patents for class 238 subclass 195]    195Angle:
 This subclass is indented under subclass 187.  Subject matter wherein an angle-chair has a horizontal flange under the rail-bases and an upright flange parallel to and adjacent the rail-webs.

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157,
  
[List of Patents for class 238 subclass 196]    196Pivoted:
 This subclass is indented under subclass 195.  Subject matter wherein the upright flange of the angle or splice bar is pivoted to the base-plate.

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209,and 210.
  
[List of Patents for class 238 subclass 197]    197Splice lug engagement:
 This subclass is indented under subclass 195.  Subject matter wherein the upright flange of the angle or the splice-bar is connected to the base-plate by lugs or fingers interlocking therewith.

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209,and 210.
  
[List of Patents for class 238 subclass 198]    198Sliding splice lock:
 This subclass is indented under subclass 195.  Subject matter wherein the upright flange or the splice-bar has a longitudinal or dovetailed sliding locking engagement with the base-plate.
  
[List of Patents for class 238 subclass 199]    199Base plate underlap:
 This subclass is indented under subclass 198.  Subject matter wherein the rigid angle-chair cooperates with a splice bar which underlaps the free edge of the angle base-plate.
  
[List of Patents for class 238 subclass 200]    200Weber type:
 This subclass is indented under subclass 195.  Subject matter including a complete splice-bar joint carried on an angle-chair with a lateral cushion between the parts.

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158,
  
[List of Patents for class 238 subclass 201]    201Transverse slide:
 This subclass is indented under subclass 195.  Subject matter wherein the angle-chair cooperates with a splice-bar, which is guided by and is slidable toward the rails.
  
[List of Patents for class 238 subclass 202]    202Screw-operated:
 This subclass is indented under subclass 201.  Subject matter including screw-operated means for sliding the splice-bar.
  
[List of Patents for class 238 subclass 203]    203Horizontal wedge:
 This subclass is indented under subclass 201.  Subject matter including horizontal wedge means for sliding the splice-bar.
  
[List of Patents for class 238 subclass 204]    204Vertical wedge:
 This subclass is indented under subclass 201.  Subject matter including vertical wedge means for sliding the splice-bar.
  
[List of Patents for class 238 subclass 205]    205Integral:
 This subclass is indented under subclass 187.  Subject matter wherein the rail-joint is formed of a base-plate with upright side flanges forming a channel- shaped member fitting and carrying the rail ends.

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154,
  
[List of Patents for class 238 subclass 206]    206Base filler:
 This subclass is indented under subclass 205.  Subject matter including a base-plate filler inserted between the rail bottom and the joint-base.
  
[List of Patents for class 238 subclass 207]    207One-side filler:
 This subclass is indented under subclass 205.  Subject matter including a filler member or wedge inserted between the side of the rail and one of the upstanding joint-flanges.
  
[List of Patents for class 238 subclass 208]    208Two-side filler:
 This subclass is indented under subclass 207.  Subject matter wherein filler inserts or wedges are used on both sides of the rail and inside the channel-shaped joint member.

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161,and 170.
  
[List of Patents for class 238 subclass 209]    209Base plate:
 This subclass is indented under subclass 151.  Subject matter including flat plates or blocks for supporting abutting rail ends.

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160,
  
[List of Patents for class 238 subclass 210]    210Top flange:
 This subclass is indented under subclass 209.  Subject matter including longitudinal ribs or flanges on the top of the plates adjacent the rail ends.
(1) Note. This subclass excludes such flanges as overlap a splice-bar, which are in subclass 212.

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160,212 and 257.
  
[List of Patents for class 238 subclass 211]    211Angle-bar underlap:
 This subclass is indented under subclass 209.  Subject matter wherein the angle splice-bars have depending flanges which underflap the sides of the base-plate.
  
[List of Patents for class 238 subclass 212]    212Angle-bar overlap:
 This subclass is indented under subclass 209.  Subject matter wherein the upwardly-projecting flanges on the base-plate overlap the angle splice-bars.
  
[List of Patents for class 238 subclass 213]    213Base stiffeners:
 This subclass is indented under subclass 209.  Subject matter wherein base-plates with girder-flanges or stiffening means.
  
[List of Patents for class 238 subclass 214]    214Distorted:
 This subclass is indented under subclass 209.  Subject matter wherein base-plates of distorted sheet metal for stiffening purposes.

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189,
  
[List of Patents for class 238 subclass 215]    215Center seat:
 This subclass is indented under subclass 209.  Subject matter wherein the base-plate is usually depressed at the center and carries a support directly under the abutting rail ends.
  
[List of Patents for class 238 subclass 216]    216Rail lock:
 This subclass is indented under subclass 209.  Subject matter wherein the base-plate and abutting rail ends have interlocking lug engagement to prevent rail creepage.
  
[List of Patents for class 238 subclass 217]    217Side clips:
 This subclass is indented under subclass 209.  Subject matter wherein the rails are secured to the base-plate by side clips.
  
[List of Patents for class 238 subclass 218]    218Tread bridge:
 This subclass is indented under subclass 151.  Subject matter including a joint member which takes the load of the traction-wheels off the tread-surfaces of the abutting rail ends.
(1) Note. This subclass includes most of this type in which the rail-sections are not changed.
  
[List of Patents for class 238 subclass 219]    219Rail-head insert:
 This subclass is indented under subclass 218.  Subject matter wherein the abutting rail-heads are grooved or recessed to receive a bridging insert.
  
[List of Patents for class 238 subclass 220]    220Rail-head cover:
 This subclass is indented under subclass 218.  Subject matter wherein a thin sheet-metal tread covering is placed over the abutting rail ends.
  
[List of Patents for class 238 subclass 221]    221Notched head:
 This subclass is indented under subclass 218.  Subject matter wherein the abutting rail-heads are mortised on one side to receive the bridge-piece.
  
[List of Patents for class 238 subclass 222]    222Twin:
 This subclass is indented under subclass 221.  Subject matter wherein the abutting rail-heads are mortised on both sides to receive a pair of bridge-pieces.
  
[List of Patents for class 238 subclass 223]    223Head section:
 This subclass is indented under subclass 218.  Subject matter wherein a tread member including a rail-head with a central or a single side shank is inserted between the abutting rail ends.
  
[List of Patents for class 238 subclass 224]    224Saddle:
 This subclass is indented under subclass 223.  Subject matter including an inserted rail-head section provided with a pair of legs which straddles the rail-webs.
  
[List of Patents for class 238 subclass 225]    225Rail section:
 This subclass is indented under subclass 218.  Subject matter wherein the tread-block inserted between the rail ends takes up the space of the full rail-section.
  
[List of Patents for class 238 subclass 226]    226Splice key:
 This subclass is indented under subclass 225.  Subject matter wherein the tread-block is locked in place by a splice-bar resting against the rail-webs.
  
[List of Patents for class 238 subclass 227]    227Spacer:
 This subclass is indented under subclass 218.  Subject matter including filling-in pieces between separated standard-section rail ends.
  
[List of Patents for class 238 subclass 228]    228Expansible:
 This subclass is indented under subclass 227.  Subject matter including elastic or expanding fillers between standard-section rail ends.
  
[List of Patents for class 238 subclass 229]    229Web posts:
 This subclass is indented under subclass 218.  Subject matter wherein the rail ends are centrally slotted from top to bottom to receive vertical tread-plates.
  
[List of Patents for class 238 subclass 230]    230Scarf:
 This subclass is indented under subclass 151.  Subject matter wherein the rail ends overlap each other and are beveled, notched, or mortised to form the joints.

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403Joints and Connections,   subclasses 339+ for scarf joints in general.
  
[List of Patents for class 238 subclass 231]    231Longitudinally assembled:
 This subclass is indented under subclass 230.  Subject matter wherein the specially-shaped rail ends are assembled in joint form by longitudinal movement only.
  
[List of Patents for class 238 subclass 232]    232Twin:
 This subclass is indented under subclass 231.  Subject matter wherein joined rail ends are exact duplicates.
  
[List of Patents for class 238 subclass 233]    233With vertical drop:
 This subclass is indented under subclass 231.  Subject matter wherein the specially formed rail ends are assembled by longitudinal movement supplemented with a vertical drop by one of the rail ends.
  
[List of Patents for class 238 subclass 234]    234Longitudinal or vertical:
 This subclass is indented under subclass 230.  Subject matter wherein the specially formed rail ends may be assembled by either a longitudinal or vertical movement of the rail ends.
  
[List of Patents for class 238 subclass 235]    235Vertical drop:
 This subclass is indented under subclass 230.  Subject matter wherein the specially formed rail ends are assembled by vertical movement only.

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177,and 216.
  
[List of Patents for class 238 subclass 236]    236Laterally assembled:
 This subclass is indented under subclass 230.  Subject matter wherein the specially formed rail ends may be assembled laterally to form the joint.
  
[List of Patents for class 238 subclass 237]    237Twin:
 This subclass is indented under subclass 236.  Subject matter wherein the specially formed rail ends are duplicates.
  
[List of Patents for class 238 subclass 238]    238Longitudinal lock:
 This subclass is indented under subclass 236.  Subject matter wherein the integral engaging parts prevent the longitudinal separation of the rails.
  
[List of Patents for class 238 subclass 239]    239Twin:
 This subclass is indented under subclass 238.  Subject matter wherein the specially formed rail ends are duplicates.
  
[List of Patents for class 238 subclass 240]    240Angularly assembled:
 This subclass is indented under subclass 230.  Subject matter wherein the specially formed rail ends can only be assembled by angular positioning of the rails relatively to each other.
  
[List of Patents for class 238 subclass 241]    241Longitudinal:
 This subclass is indented under subclass 240.  Subject matter wherein the specially formed rail ends must be arranged in longitudinal angular relation to assemble the joint.
  
[List of Patents for class 238 subclass 242]    242Lateral:
 This subclass is indented under subclass 240.  Subject matter wherein the specially formed rail ends must be arranged in lateral angular relation to assemble the joint; this relative angular movement means on axial adjustment of one rail about its longitudinal axis.
  
[List of Patents for class 238 subclass 243]    243Splice bars:
 This subclass is indented under subclass 151.  Subject matter including splice or angle bars for rail connections which fit the rail-webs and may cover the rail-base tops.

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159,160, 212, and 263.
  
[List of Patents for class 238 subclass 244]    244Multiple part:
 This subclass is indented under subclass 243.  Subject matter wherein the splice-bar element filling the rail fishing-space or abutting the rail-web is composed of several parts.
  
[List of Patents for class 238 subclass 245]    245Toggle:
 This subclass is indented under subclass 243.  Subject matter wherein the splice-bar is made up of two parts forced into the rail fishing-space by movement like straightening a toggle-joint.
  
[List of Patents for class 238 subclass 246]    246Rail guide:
 This subclass is indented under subclass 243.  Subject matter wherein the splice-bars are slid into position longitudinally and are held in place by guides integral with the rail.

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226,
  
[List of Patents for class 238 subclass 247]    247Attached:
 This subclass is indented under subclass 246.  Subject matter wherein the splice-bar guides are detachable from the rail ends.
  
[List of Patents for class 238 subclass 248]    248Rail sleeve:
 This subclass is indented under subclass 243.  Subject matter wherein the splice-bars slide in sleeves attached to the rail ends.
  
[List of Patents for class 238 subclass 249]    249Longitudinal bolts:
 This subclass is indented under subclass 243.  Subject matter wherein the splice-bars are bolts or rods which pass through sleeves formed on or secured to the rail ends.
  
[List of Patents for class 238 subclass 250]    250Bar lugs and splice keys:
 This subclass is indented under subclass 243.  Subject matter wherein one splice-bar carries looped lugs which pass through the rail-web, and the other splice-bar passes through the looped lugs.
  
[List of Patents for class 238 subclass 251]    251Bar bolts and splice keys:
 This subclass is indented under subclass 243.  Subject matter wherein one splice-bar has bayonet-slots for slidable locking engagement with a bolt or a lug on the other splice-bar.
  
[List of Patents for class 238 subclass 252]    252Slotted bolt locks:
 This subclass is indented under subclass 243.  Subject matter including two splice-bars with an auxiliary slotted locking-plate which engages the bolt-heads; these plates may slide vertically or horizontally.
  
[List of Patents for class 238 subclass 253]    253Bolt keys:
 This subclass is indented under subclass 243.  Subject matter including splice-bar joints with transverse keys engaging apertures or notches in the bolts.
  
[List of Patents for class 238 subclass 254]    254Rail-groove swing:
 This subclass is indented under subclass 243.  Subject matter wherein one edge of the splice-bar engages in a groove or recess in a rail and pivots in this recess to seating position.
  
[List of Patents for class 238 subclass 255]    255Cam-tightened:
 This subclass is indented under subclass 243.  Subject matter wherein the splice-bars are seated and held by a cam fastening.
  
[List of Patents for class 238 subclass 256]    256U-bars and loops:
 This subclass is indented under subclass 243.  Subject matter wherein the U-bars span the joint, and the legs pass through the rail-webs; the loops span the joint.

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378,
  
[List of Patents for class 238 subclass 257]    257Vertical bevel flange:
 This subclass is indented under subclass 243.  Subject matter wherein the angle-bars have their outer lower edges beveled upwardly and outwardly.
  
[List of Patents for class 238 subclass 258]    258Tapered:
 This subclass is indented under subclass 243.  Subject matter wherein the splice-bars are thickened at the middle and taper toward the ends.
  
[List of Patents for class 238 subclass 259]    259Springs:
 This subclass is indented under subclass 243.  Subject matter wherein the splice-bars are spring members or spring-supported; this does not include mere spring-washers.
  
[List of Patents for class 238 subclass 260]    260Fasteners:
 This subclass is indented under subclass 243.  Subject matter including fastening devices for splice-bars and rail-joints not otherwise classified.

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181,
  
[List of Patents for class 238 subclass 261]    261Double and split keys:
 This subclass is indented under subclass 260.  Subject matter including special fastening for splice-bar bolts; the double keys are usually duplicates reversely arranged.
  
[List of Patents for class 238 subclass 262]    262Nut and bolt lock:
 This subclass is indented under subclass 243.  Subject matter including nut and bolt locks for rail-joints not otherwise classified in which a substantial modification of a rail-joint member forms a part of the nut or bolt lock.

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411Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener,   subclasses 81+ for a threaded fastener (i.e., a bolt or nut) and means for restricting the rotation thereof relative to a coacting substructure (e.g., the substructure may be the splice bar of a rail joint, etc).
  
[List of Patents for class 238 subclass 263]    263Adjustable joint clamps:
 This subclass is indented under subclass 243.  Subject matter wherein the clamp member passes underneath the rail-base and engages the splice-bars or joint members to bind them against the rail.
  
[List of Patents for class 238 subclass 264]    264RAIL SEATS:
 This subclass is indented under the class definition.  Subject matter including rail seats or supports other than tie-plates adapted to support a rail on a tie, pot-sleeper, or stringer.
  
[List of Patents for class 238 subclass 265]    265With anchor in concrete:
 This subclass is indented under subclass 264.  Subject matter including rail-seats with base-anchors adapted to be embedded in concrete.
  
[List of Patents for class 238 subclass 266]    266English chair:
 This subclass is indented under subclass 264.  Subject matter including rail-chairs for holding reversible rails; the heads and bases of the rail are alike.
  
[List of Patents for class 238 subclass 267]    267T-rail:
 This subclass is indented under subclass 264.  Subject matter including rail-seats for T-rails having no base-flanges.

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177,
  
[List of Patents for class 238 subclass 268]    268Inverted channel rail:
 This subclass is indented under subclass 264.  Subject matter including rail-seats for T-rails.

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176,
  
[List of Patents for class 238 subclass 269]    269Cast:
 This subclass is indented under subclass 264.  Subject matter including rail-seats of cast metal.

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428Stock Material or Miscellaneous Articles,   subclasses 544+ for nominally claimed metallic track, that is, having some structural description, but insufficient to limit its use to that of a railway track, element, adjunct, or material.
  
[List of Patents for class 238 subclass 270]    270With tie:
 This subclass is indented under subclass 269.  Subject matter including rail-seats cast integrally with a tie.

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30,
  
[List of Patents for class 238 subclass 271]    271Plane top:
 This subclass is indented under subclass 269.  Subject matter including cast-rail-seats with flat or plane tops.
  
[List of Patents for class 238 subclass 272]    272Wrought:
 This subclass is indented under subclass 264.  Subject matter including rail seats of wrought or sheet metal.

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428Stock Material or Miscellaneous Articles,   subclasses 544+ for nominally claimed metallic track, that is, having some structural description, but insufficient to limit its use to that of a railway track, element, adjunct, or material.
  
[List of Patents for class 238 subclass 273]    273With tie:
 This subclass is indented under subclass 272.  Subject matter including wrought or sheet metal rail-seats made integrally with a tie.
  
[List of Patents for class 238 subclass 274]    274Plane top:
 This subclass is indented under subclass 272.  Subject matter including wrought or sheet metal rail-seats having flat or plane tops.
  
[List of Patents for class 238 subclass 275]    275Twin jaws:
 This subclass is indented under subclass 264.  Subject matter including twin-section rail-seats divided under the rail base and usually having flanges extending over the rail base-flanges.
  
[List of Patents for class 238 subclass 276]    276Wrought:
 This subclass is indented under subclass 275.  Subject matter wherein the jaws are made of wrought or sheet metal.
  
[List of Patents for class 238 subclass 277]    277Pivoted:
 This subclass is indented under subclass 264.  Subject matter including pivoted rail-supporting seats.
  
[List of Patents for class 238 subclass 278]    278Jaw and seat:
 This subclass is indented under subclass 264.  Subject matter wherein half or the rail-seat is formed on the tie or stringer, and the other half of the rail-seat is laterally applied and has a flange to engage the top of the rail-base.
  
[List of Patents for class 238 subclass 279]    279Gravity:
 This subclass is indented under subclass 264.  Subject matter wherein the weight of the rails acts upon the seat members through levers, wedges, or rocking elements to hold the rail to its seat.

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170,
  
[List of Patents for class 238 subclass 280]    280Saddles:
 This subclass is indented under subclass 264.  Subject matter wherein the saddle is a rectangular frame, two sides of which pass under the rail-base and the other two sides of which pass over the tie tops and engage the edges of the rail-base; the saddle does not uphold the rail.
  
[List of Patents for class 238 subclass 281]    281Vertical adjustment:
 This subclass is indented under subclass 264.  Subject matter including rail-seats which may be vertically adjusted.

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172,
  
[List of Patents for class 238 subclass 282]    282Lateral adjustment:
 This subclass is indented under subclass 264.  Subject matter including rail-seats which may be laterally adjusted

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281,
  
[List of Patents for class 238 subclass 283]    283Cushions:
 This subclass is indented under subclass 264.  Subject matter including cushions and yielding supports for rails or rail-seats.
  
[List of Patents for class 238 subclass 284]    284Metal springs:
 This subclass is indented under subclass 283.  Subject matter including metallic springs for supporting rails, either directly or through interposed seats.

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302,
  
[List of Patents for class 238 subclass 285]    285Wood blocks:
 This subclass is indented under subclass 283.  Subject matter wherein wood blocks are used.

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118,
  
[List of Patents for class 238 subclass 286]    286Spiking blocks:
 This subclass is indented under subclass 264.  Subject matter including wooden blocks upon which rails are seated and into which the rail-holding spikes or fastening penetrate.
  
[List of Patents for class 238 subclass 287]    287TIE-PLATES:
 This subclass is indented under the class definition.  Subject matter including tie-plates for use on ties and stringers.
  
[List of Patents for class 238 subclass 288]    288Gauge:
 This subclass is indented under subclass 287.  Subject matter including tie-plates cross-connected under both track-rails on top of a tie or a single tie-plate extending under both rails.
  
[List of Patents for class 238 subclass 289]    289Plural tie:
 This subclass is indented under subclass 287.  Subject matter including a tie-plate extending longitudinally under a rail and over a plurality of ties.

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209,through 217, inclusive.
  
[List of Patents for class 238 subclass 290]    290Lap:
 This subclass is indented under subclass 287.  Subject matter including tie-plates each composed of a plurality of sections overlapping each other or having laterally lapping parts in a horizontal plane.
  
[List of Patents for class 238 subclass 291]    291Interlock:
 This subclass is indented under subclass 290.  Subject matter wherein the lapping sections interlock with each other.

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193,
  
[List of Patents for class 238 subclass 292]    292Rail brace:
 This subclass is indented under subclass 287.  Subject matter including tie-plates, each carrying a rail-brace engaging the rail-head.

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281,
  
[List of Patents for class 238 subclass 293]    293Integral:
 This subclass is indented under subclass 292.  Subject matter including tie plates each having integrally formed therewith a rail-head-engaging brace.
  
[List of Patents for class 238 subclass 294]    294Spike lock:
 This subclass is indented under subclass 287.  Subject matter including a tie-plate with a spike-locking member, usually engaging the top of the spike-head.
  
[List of Patents for class 238 subclass 295]    295Lug on spike:
 This subclass is indented under subclass 294.  Subject matter including a tie-plate engaging a locking lug or recess on a spike.
  
[List of Patents for class 238 subclass 296]    296Pawl:
 This subclass is indented under subclass 294.  Subject matter including tie-plates with pawl-locks for the spikes.
  
[List of Patents for class 238 subclass 297]    297Anchors:
 This subclass is indented under subclass 287.  Subject matter including bolts, lugs, and prongs for fastening tie-plates to the ties.
  
[List of Patents for class 238 subclass 298]    298Integral:
 This subclass is indented under subclass 297.  Subject matter wherein tie-plate-anchoring members are integrally formed with the tie-plate.
  
[List of Patents for class 238 subclass 299]    299Tie butting:
 This subclass is indented under subclass 287.  Subject matter including tie-plates having depending flanges engaging the outer sides or end of a tie.

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305,
  
[List of Patents for class 238 subclass 300]    300Sleeve:
 This subclass is indented under subclass 287.  Subject matter wherein tie-plates have depending parts surrounding the under side of the tie.

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314,
  
[List of Patents for class 238 subclass 301]    301Reversible:
 This subclass is indented under subclass 287.  Subject matter including tie-plates adapted to be used either side up.
  
[List of Patents for class 238 subclass 302]    302Spring:
 This subclass is indented under subclass 301.  Subject matter including tie-plates adapted to act as springs or cushions.
  
[List of Patents for class 238 subclass 303]    303Screw spike:
 This subclass is indented under subclass 287.  Subject matter including tie-plates for use with screw-spikes.
  
[List of Patents for class 238 subclass 304]    304Top surface:
 This subclass is indented under subclass 287.  Subject matter including top-surface form and attachments for tie-plates.

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292,293, 299, 301, and 303.
  
[List of Patents for class 238 subclass 305]    305Rotary:
 This subclass is indented under subclass 287.  Subject matter including tie-plates adapted for slight rotation when placed in final seated position; the rotation locks the rail in place.
  
[List of Patents for class 238 subclass 306]    306Rail-base seats:
 This subclass is indented under subclass 287.  Subject matter including form variation for rail-seating surfaces on tie-plates.
  
[List of Patents for class 238 subclass 307]    307Contour:
 This subclass is indented under subclass 287.  Subject matter including special contours or outline-forms for tie-plates.
  
[List of Patents for class 238 subclass 308]    308Spike-hole arrangement:
 This subclass is indented under subclass 287.  Subject matter including relative arrangement of spike-holes in tie plates.
  
[List of Patents for class 238 subclass 309]    309Spike-shank brace:
 This subclass is indented under subclass 287.  Subject matter including tie-plates with means for bracing the spike-shanks.
  
[List of Patents for class 238 subclass 310]    310FASTENINGS:
 This subclass is indented under the class definition.  Subject matter including fastenings not otherwise classified for railway-track structure.

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14.05+,particularly subclasses 14.13, 14.1, and 14.15 for fastenings designed to secure a rail-bond or other electric connector to a rail.
  
[List of Patents for class 238 subclass 311]    311Welded:
 This subclass is indented under subclass 310.  Subject matter including fastening by welding.

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16,
  
[List of Patents for class 238 subclass 312]    312Protective boxes and closures:
 This subclass is indented under subclass 310.  Subject matter including boxes and closures for protection of rail-joints and other track elements.

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14.9,for protective devices limited to the protection of rail-bonds.
  
[List of Patents for class 238 subclass 313]    313Universal:
 This subclass is indented under subclass 310.  Subject matter including rail-fastenings with a continual series of fastening elements on a tie, so that a rail may be detachably secured at any desired point on a tie.
  
[List of Patents for class 238 subclass 314]    314Yoke:
 This subclass is indented under subclass 310.  Subject matter including fastening devices have yoke-anchoring devices, each surrounding a tie.

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300,
  
[List of Patents for class 238 subclass 315]    315Rail anchors:
 This subclass is indented under subclass 310.  Subject matter including anchoring devices to prevent creepage of rails or to prevent the track structure from displacement.
  
[List of Patents for class 238 subclass 316]    316Pawl:
 This subclass is indented under subclass 315.  Subject matter including pawls engaging the rails to prevent creepage.
  
[List of Patents for class 238 subclass 317]    317Cam:
 This subclass is indented under subclass 315.  Subject matter including cams engaging the rails to prevent creepage.

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341,
  
[List of Patents for class 238 subclass 318]    318Rail recess:
 This subclass is indented under subclass 315.  Subject matter including lug or bolt devices entering rail-recesses to prevent rail-creepage.

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216,
  
[List of Patents for class 238 subclass 319]    319Rail lug:
 This subclass is indented under subclass 315.  Subject matter including lugged rails to prevent rail-creepage.
  
[List of Patents for class 238 subclass 320]    320Distorted rail:
 This subclass is indented under subclass 315.  Subject matter including distorted rail-base flanges to prevent creepage.
  
[List of Patents for class 238 subclass 321]    321Tie contact:
 This subclass is indented under subclass 315.  Subject matter including devices for prevention of creepage of rails which abut against the tie sides and which do not support any vertical load.
  
[List of Patents for class 238 subclass 322]    322Cam:
 This subclass is indented under subclass 321.  Subject matter including tie-abutting anticreepers that are cam-actuated.
  
[List of Patents for class 238 subclass 323]    323Swinging clip:
 This subclass is indented under subclass 321.  Subject matter including tie-abutting anticreepers with transverse rail-base-engaging clips.
  
[List of Patents for class 238 subclass 324]    324Wedge:
 This subclass is indented under subclass 321.  Subject matter including tie-abutting anticreepers that are wedge-actuated.
  
[List of Patents for class 238 subclass 325]    325Bevel slide:
 This subclass is indented under subclass 321.  Subject matter including tie-abutting anticreepers with bevel sliding sections.
  
[List of Patents for class 238 subclass 326]    326Reversed lap:
 This subclass is indented under subclass 325.  Subject matter wherein each section overlaps the other at one of its ends.
  
[List of Patents for class 238 subclass 327]    327Twin jaws:
 This subclass is indented under subclass 321.  Subject matter including tie abutting anticreepers with twin jaws that are base-connected.
  
[List of Patents for class 238 subclass 328]    328With wedge:
 This subclass is indented under subclass 327.  Subject matter including a tightening wedge.
  
[List of Patents for class 238 subclass 329]    329Diagonal:
 This subclass is indented under subclass 321.  Subject matter including tie-abutting anticreepers with side abutment giving a diagonal or inclined position to the connecting member under the rail-base.
  
[List of Patents for class 238 subclass 330]    330Integral:
 This subclass is indented under subclass 329.  Subject matter wherein the anticreeper is an integral structure.
  
[List of Patents for class 238 subclass 331]    331Transverse slide:
 This subclass is indented under subclass 310.  Subject matter including rail-fastenings adapted to have transverse sliding movements relatively to the rails.
  
[List of Patents for class 238 subclass 332]    332Screw-operated:
 This subclass is indented under subclass 331.  Subject matter wherein the slide is operated by a screw.

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202,
  
[List of Patents for class 238 subclass 333]    333Horizontal wedge-operated:
 This subclass is indented under subclass 331.  Subject matter wherein the slide is actuated by a horizontal wedge.

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203,
  
[List of Patents for class 238 subclass 334]    334Vertical wedge-operated:
 This subclass is indented under subclass 331.  Subject matter wherein the slide is actuated by a vertical wedge.

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204,
  
[List of Patents for class 238 subclass 335]    335Abutting screw point:
 This subclass is indented under subclass 310.  Subject matter including abutting screw points or ends against rails.
  
[List of Patents for class 238 subclass 336]    336Rail brace:
 This subclass is indented under subclass 310.  Subject matter including braces abutting rail-heads to hold them in place.

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281,
292,293, for rail-braces mounted on tie-plates.
  
[List of Patents for class 238 subclass 337]    337Vertical slide:
 This subclass is indented under subclass 336.  Subject matter including rail-braces having varying points of engagement with the rail as the rail is shimmed up more or less.

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281,
  
[List of Patents for class 238 subclass 338]    338Clamps:
 This subclass is indented under subclass 310.  Subject matter including clamps for holding railbases to their seats or supports.

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187Elevators, Industrial Lift Truck, or Stationary Lift for Vehicle,   subclass 408 for means for attaching elevator guide rails to the elevator shaft.
  
[List of Patents for class 238 subclass 339]    339Gauge:
 This subclass is indented under subclass 338.  Subject matter including rail-clamping devices interconnected between the two rails.
  
[List of Patents for class 238 subclass 340]    340Multiple face:
 This subclass is indented under subclass 338.  Subject matter including rail-clamps having a plurality of rail-flange engaging faces for interchangeable or selective use, as in case of rail adjustment.
  
[List of Patents for class 238 subclass 341]    341Cam adjustment:
 This subclass is indented under subclass 338.  Subject matter including rail-clamps of cam bolt head or cam type for rail adjustment.
  
[List of Patents for class 238 subclass 342]    342Nut type:
 This subclass is indented under subclass 338.  Subject matter including rail-clamps of nut type.
  
[List of Patents for class 238 subclass 343]    343Anchors:
 This subclass is indented under subclass 338.  Subject matter including rail-clamps having anchoring-lugs on their bases or rear abutments to hold them in place.
  
[List of Patents for class 238 subclass 344]    344Vertical face:
 This subclass is indented under subclass 343.  Subject matter including rail-clamps having depending platelike faces to be fastened to tie sides or other vertical faces.
  
[List of Patents for class 238 subclass 345]    345Vertical shank:
 This subclass is indented under subclass 343.  Subject matter including rail-clamps having vertical bolt-like shanks.
  
[List of Patents for class 238 subclass 346]    346Ratchet:
 This subclass is indented under subclass 343.  Subject matter including rail-clamps having ratchet or step-by-step engagement with their supports for adjustment purposes.
  
[List of Patents for class 238 subclass 347]    347Bevel guide:
 This subclass is indented under subclass 338.  Subject matter including rail-clamps having inclined or beveled guides for longitudinal movement of the clamp to effect lateral adjustment of the rail.

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362,and 363.
  
[List of Patents for class 238 subclass 348]    348Internal arm:
 This subclass is indented under subclass 338.  Subject matter including rail-clamps the rearwardly extending arms of which enter and pass rearwardly beneath the tie interior and may pass out through the tie at the extreme rear end.
  
[List of Patents for class 238 subclass 349]    349Spring:
 This subclass is indented under subclass 338.  Subject matter including rail-clamps of spring metal or spring metal or spring-pressed.

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187Elevators, Industrial Lift Truck, or Stationary Lift for Vehicle,   subclass 408 for means for attaching elevator guide rails to the elevator shaft.
  
[List of Patents for class 238 subclass 350]    350Integral with tie:
 This subclass is indented under subclass 338.  Subject matter including rail-engaging lugs made integrally with the tie.
  
[List of Patents for class 238 subclass 351]    351Clip type:
 This subclass is indented under subclass 338.  Subject matter including rail-fastenings of the clip type usually sprung or driven into position transversely.

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217,
  
[List of Patents for class 238 subclass 352]    352Double:
 This subclass is indented under subclass 351.  Subject matter including rail and tie clips having a jaw engaging over the rail-base flange and a depending jaw at right angles to the first jaw for engagement with a transverse tie.
  
[List of Patents for class 238 subclass 353]    353Vertical wedge:
 This subclass is indented under subclass 351.  Subject matter including a rail-clip forced to engaging position by a vertical wedge.
  
[List of Patents for class 238 subclass 354]    354Horizontal wedge:
 This subclass is indented under subclass 351.  Subject matter wherein the clip is actuated by a horizontal wedge.
  
[List of Patents for class 238 subclass 355]    355Hooks:
 This subclass is indented under subclass 338.  Subject matter including hooks for holding a rail to its seat.
  
[List of Patents for class 238 subclass 356]    356Pivoted:
 This subclass is indented under subclass 355.  Subject matter including pivoted hooks swingable into engagement with a rail-base flange.
  
[List of Patents for class 238 subclass 357]    357Twin:
 This subclass is indented under subclass 355.  Subject matter including vertical hooks in engagement with both sides of a rail-base.
  
[List of Patents for class 238 subclass 358]    358Through bolt:
 This subclass is indented under subclass 357.  Subject matter wherein both hooks are held to place by a single through-bolt.
  
[List of Patents for class 238 subclass 359]    359Single pivot:
 This subclass is indented under subclass 357.  Subject matter wherein both hooks are pivotally mounted on a single pivot.
  
[List of Patents for class 238 subclass 360]    360Lever:
 This subclass is indented under subclass 338.  Subject matter including rail-clamps of a lever type.

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279,
  
[List of Patents for class 238 subclass 361]    361Wedges:
 This subclass is indented under subclass 338.  Subject matter including wedges for fastening rails.

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206,207, 208, 253, 266, 267, and 324.
  
[List of Patents for class 238 subclass 362]    362Parallel:
 This subclass is indented under subclass 361.  Subject matter including parallel wedges usually engaging the opposite sides of a rail for adjustment purposes.

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208,
  
[List of Patents for class 238 subclass 363]    363Aligned:
 This subclass is indented under subclass 361.  Subject matter including pairs of aligned wedges for rail fastenings and joints.
  
[List of Patents for class 238 subclass 364]    364Flange:
 This subclass is indented under subclass 361.  Subject matter including wedges for engagement of the edge of the base-flanges of railway-rails.

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21,
  
[List of Patents for class 238 subclass 365]    365Locks:
 This subclass is indented under subclass 361.  Subject matter including locks for wedges involving modification of track elements.
  
[List of Patents for class 238 subclass 366]    366Spikes:
 This subclass is indented under subclass 310.  Subject matter including spikes and bolts of such forms as to be capable of use only with track elements substantially modified to cooperate with such spikes or bolts.

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295,

SEE OR SEARCH CLASS:

411Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener,   subclasses 439+ for spikes of general application.
  
[List of Patents for class 238 subclass 367]    367Interlock:
 This subclass is indented under subclass 366.  Subject matter including spikes adapted to have interlocking engagement with each other in the interior of a tie.
  
[List of Patents for class 238 subclass 368]    368Bent:
 This subclass is indented under subclass 366.  Subject matter including spikes bent in driving for locking purposes.
  
[List of Patents for class 238 subclass 369]    369Split end:
 This subclass is indented under subclass 366.  Subject matter including split-ended spikes for cooperation with special track-fastenings.
  
[List of Patents for class 238 subclass 370]    370Plug:
 This subclass is indented under subclass 366.  Subject matter including plugs into which spikes are adapted to be driven.
  
[List of Patents for class 238 subclass 371]    371Socket:
 This subclass is indented under subclass 366.  Subject matter including sockets for the reception of spikes. These sockets form a portion of the tie structure.
  
[List of Patents for class 238 subclass 372]    372Screw:
 This subclass is indented under subclass 366.  Subject matter including screw-spikes not adapted for general use, but only as track-fastening devices.

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303,
  
[List of Patents for class 238 subclass 373]    373Sockets:
 This subclass is indented under subclass 372.  Subject matter including sockets for screw-spikes; these sockets form either a portion of the tie structure or a portion of the rail-seat.
  
[List of Patents for class 238 subclass 374]    374Socket and wedge:
 This subclass is indented under subclass 366.  Subject matter including sockets for the reception of a spike or bolt together with a wedge placed in the socket with the spike or bolt.
  
[List of Patents for class 238 subclass 375]    375Lock:
 This subclass is indented under subclass 366.  Subject matter including locking devices for spikes and bolts not adapted for general use, but only for track-fastening devices.

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294,and 295.
  
[List of Patents for class 238 subclass 376]    376Ratchet:
 This subclass is indented under subclass 366.  Subject matter including ratcheted spikes or bolts adapted for use only with track-fastenings.
  
[List of Patents for class 238 subclass 377]    377Bolt anchors and sleeves:
 This subclass is indented under subclass 310.  Subject matter including bolt-anchors in ties and concrete and bolt-sleeves adapted for use only with track-fastenings.
  
[List of Patents for class 238 subclass 378]    378U-bolts and clips:
 This subclass is indented under subclass 310.  Subject matter including u-bolts and clips adapted for use only with track-fastenings.
(1) Note. These clips differ from those of subclass 351 in that they require bending of ends or additional fastening means to hold them in place.
  
[List of Patents for class 238 subclass 379]    379FOOT GUARDS:
 This subclass is indented under the class definition.  Subject matter including devices for preventing a person’s foot from being caught in frogs, switches, or guard-rails.
  
[List of Patents for class 238 subclass 380]    380Switch point:
 This subclass is indented under subclass 379.  Subject matter including devices for preventing a person’s foot from being caught by a movable switch-point.
  
[List of Patents for class 238 subclass 381]    381Wheel-depressed:
 This subclass is indented under subclass 379.  Subject matter including foot-guards which yield and are depressed by the passage of a wheel-flange thereover, but which will not be depressed when stepped upon.
  
[List of Patents for class 238 subclass 382]    382DEADENING NOISE:
 This subclass is indented under the class definition.  Subject matter including devices for deadening noise in railway-track other than cushion elements for the rails.

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283,284, and 285, for cushion elements for the rails.