drawbar

Etymology
From.

Noun

 * 1)  An open-mouthed bar at the end of a car, which receives a coupling link and pin by which the car is drawn. It is usually provided with a spring to give elasticity to the connection between the cars of a train.
 * 2)  A bar of iron with an eye at each end, or a heavy link, for coupling a locomotive to a tender or car.
 * 3)  A device to couple a powered road vehicle to a load to transfer tractive effort to the load, either as a push or as a pull.
 * 4)  A sliding bar on a Hammond organ, controlling the volume of a waveform.
 * 5)  A device for changing the tools on milling machines.

Translations

 * Finnish:
 * Russian:
 * Ukrainian: зчеп, зчі́пка