Abstract: An attachment for tractors to permit connection with trailer couplings has a pair of plates, the outer of which carries a latch provided with a spring-loaded latching pin for releasable joinder with the couplings. The outer plate is reciprocated toward and away from the tractor by the piston shaft of a hydraulic cylinder, and a pair of rods guide the outer plate during reciprocation. After latching of the pin to the coupling the shaft is withdrawn to place the plates next adjacent each other, and before movement of the two vehicles, the plates are interconnected by a spring-loaded locking bolt carried by the inner plate.

Abstract: Apparatus for advancing or reversing motor vehicles, such as tractors to be coupled with trailers, through use of a hand crank, transmits power from a belt and pulley assembly to the vehicle propeller shaft, and therefore, to the drive wheels through the differential and wheel axle. Axially aligned, housing-supported input and output spindles are interposed between such assembly and the crank, the spring-loaded input spindle being shiftable by operation of the crank to a position where it operably connects with the output spindle.