tripcock
Noun
Meaning
tripcock (plural tripcocks)
(rail transport) A train-mounted safety device which interacts with a trackside device to stop a train automatically if it passes a signal at danger (showing a red light).
Noun
tripcock (plural tripcocks)
(rail transport) A train-mounted safety device which interacts with a trackside device to stop a train automatically if it passes a signal at danger (showing a red light).