drawbar

draw +‎ bar

• (US) IPA^(key): /ˈdɹɔ.bɑɹ/

drawbar (plural drawbars)

1. (rail transport) 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. (rail transport) A bar of iron with an eye at each end, or a heavy link, for coupling a locomotive to a tender or car.
3. (road transport) 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. (music) A sliding bar on a Hammond organ, controlling the volume of a waveform.
5. (engineering) A device for changing the tools on milling machines.

• dragbar
• draglink
• drawlink

• 
  Drawbar for trailer.
• 
  Drawbars on a Hammond organ.

• “drawbar”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.