Meaning of coupling pin | Babel Free

Definitions

1. Any pin used to form a connection between two mechanical or structural components.
2. A pin used to connect train cars or a trailer to a towing vehicle.
3. A pin for joining scaffolding frames or pipes.

Examples

“He would tell them about the cablegram when they were all on board the train. Then he ran out upon the platform just as the engine whistled twice in the final warning that precedes the first rumbling jerk of coupling pins.”

CEFR level