vacuum brake (English, noun)
expansion: vacuum brake (plural vacuum brakes)
Senses:
topics: rail-transport
railways
transport
glosses: A brake used on trains, working on the principle of keeping up a vacuum in a continuous pipe or pipes extending under the train, and in brake-cylinders connected to them under each vehicle, the air being sucked out by ejectors or pumps on the locomotive.
Forms:
form: vacuum brakes
tags: plural