ALL meanings of vacuum brake
vac·u·um brake
V v - noun vacuum brake a brake system, used on British and many overseas railways, in which the brake is held off by a vacuum on one side of the brake-operating cylinder. If the vacuum is destroyed by controlled leakage of air or a disruptive emergency, the brake is applied. It is now largely superseded by the Westinghouse brake system 0
- noun vacuum brake A vacuum brake is a type of brake that works by atmospheric pressure acting on a piston in a vacuum cylinder. 0