Abstract: A drawbar assembly for coupling a drawbar to a tongue of a towed implement includes a drawbar pin and a drawbar clevis having a bore configured to receive the drawbar pin. A locking plate is coupled to the drawbar clevis and movable between a pin-lock condition in which the locking plate is configured to obstruct at least a portion of the bore, and a pin-unlock condition. An ejector mechanism is configured to dislodge the drawbar pin from the bore. The ejector mechanism includes a handle utilized to operate the ejector mechanism and an ejector arm pivotably disposed in an ejector recess in the clevis. The ejector arm is movable from a home position in which the ejector arm does not interfere with the drawbar pin to an eject position in which the ejector arm forces the drawbar pin to be at least partially dislodged out of the bore.

Abstract: A coupling device for railway motor cars includes a pole or tongue on the motor car with a cam member pivoted on the distal end thereof. A coupling box with converging side walls is secured to the end of the trailing car and has a coupling pin extending from top to bottom. When the pivoted cam enters the box it is cammed by first, a sidewall, and then the back wall to pivot and hook around the coupling pin. During the course of this movement, a spring-biased locking pin rides on the flat, top surface of the cam to drop behind it when the coupling is complete, thus preventing reverse pivotal movement. A chain, is secured from the locking pin to an arm extending radially from a long shaft extending laterally to the side of motor car and terminating in an operating arm which, when raised, lifts the locking pin to release the pivoted cam for uncoupling.

Abstract: An uncoupling device for rotary dump cars in which the car couplers are of the bottom operating type, wherein at each end of the car the uncoupling mechanism is made of the same type, and comprising both the rotary and non-rotary couplers of the car being equipped with paddle type lock lifters having a pivotal operating stroke that unlocks and opens the coupler knuckle, and a bail type actuator therefor, wherein the actuator comprises a bail member mounted on the end of the car to receive the car center sill and swing about a horizontal axis extending crosswise of the car and located at approximately the level of the top of the car center sill and inwardly of its striker. The bail member has a striker section that underlies the center sill and is equipped with a paddle striker that is arced to accommodate coupler side swing.