Abstract: A bogie unit including at least one wheeled axle pivotally movable about a central vertical axis, a drawbar pivotally secured to a pivot point, and a control device connected to the axle and engaged with the drawbar, the control device being movable, at least to a limited extent, relatively to the drawbar, and permitting pivotal movement of the axle, at least to a limited extent, relatively to the drawbar.

Abstract: A hitch (10) for releasably connecting a double stack trailer to a road railer car having a tongue (14) having an opening (15) includes a top wall (16), bottom wall (24) and first and second walls (28) and (30) cooperatively connected to form a housing (12) for receiving the tongue (14) of the road railer car. The housing (12) has an upper pin receiving opening (18) in the top wall (16), and a lower pin receiving opening (26) in the bottom wall (24). The upper and lower pin receiving openings (18) and (26) are in alignment. A shaft (42) is positioned below the bottom wall (24) and cooperatively connected between the first side wall (28) and the second side wall (30). A lever (22) has an upper arm (44) cooperatively connected to a lower arm (46) with a pivot point (48) positioned between the arms (44) and (46 ). The lever (22) has a portion of the upper arm (44) extending above the top wall (16), and the lower arm (46) is positioned below the bottom wall (24).

Abstract: A coupler to connect rail-highway vehicles end to end including a female member at the end of one vehicle into which extends a sensing member, a male member at the end of an adjacent vehicle adapted to enter the female member, the male member including a vertical hole therethrough, and linkage connecting the sensing member with a vertical locking pin so that as the male member approaches its fully inserted position in the female member it contacts the sensing member and actuates the linkage to automatically urge the vertical locking pin through the vertical hole, the assembly being such that the weight of the vertical locking pin cannot retract from the vertical hole and cause an unlocking action to occur. In the uncoupling action, the vertical locking pin is first retracted and upon full withdrawal of the male member, the sensing member re-enters the female member, the entire assembly then being reset for automatic coupling when necessary.

Abstract: A coupler to connect convertible rail-highway vehicles end to end to achieve train configuration to carry vertical loads of about 25,000 pounds and at the same time provide limited rolling, pitching and yaw actions between the coupled vehicles. The coupler includes a male member extending from the front of a rear vehicle and a female member in the rear sill structure of a forward vehicle receiving the male member and a releasable locking means comprised of a vertical hole through the male member, a bushing in the vertical hole, the outer surface of which bushing is spherical, a spherical seat in the rear sill structure upon which the male member rests, a vertical locking pin, the vertical axis of the hole, spherical seat and locking pin being the same, and linkage means to selectively extend the locking pin through the vertical hole in the male member to effect coupling and uncoupling.