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Vacuum brake cylinder in running position: the vacuum is the same above and below the piston Air at atmospheric pressure from the train pipe is admitted below the piston, which is forced up. In its simplest form, the automatic vacuum brake consists of a continuous pipe—the train pipe—running throughout the length of the train.
A railway brake is a type of brake used on the cars of railway trains to enable deceleration, control acceleration (downhill) or to keep them immobile when parked. While the basic principle is similar to that on road vehicle usage, operational features are more complex because of the need to control multiple linked carriages and to be effective ...
Pages in category "Railway brakes" The following 24 pages are in this category, out of 24 total. ... Vacuum brake exhauster; W. Westinghouse Air Brake Company;
In the steam era, Britain's railways were divided–some using vacuum brakes and some using air brakes–but there was a gradual standardization on the vacuum brake. Some locomotives, e.g. on the London, Brighton and South Coast Railway , were dual-fitted so that they could work with either vacuum- or air-braked trains.
Interior of a typical goods brake van. Immediately to the left of the doorway is the stove and stove pipe; to the left of this are a firebucket, ducket (blanked off) and sandbox; in front of the stove is the sanding lever; to the right are the handbrake, vacuum brake handle, vacuum gauge and seat
On releasing the brake, the light vehicle shot off at high speed, covering the distance in 75 seconds, averaging 65 mph (105 km/h). As this was the first commercially operating atmospheric railway, it attracted the attention of many eminent engineers of the day, including Isambard Kingdom Brunel, Robert Stephenson, and Sir William Cubitt. [2] [7]
The vacuum brake operated automatically whenever the train brakes were applied. The use of vacuum braking instead of steam braking became standard practice on locomotives built from 1944 onwards and was welcomed by SAR drivers, who were always reluctant to make use of steam brakes for fear of skidding the coupled wheels.
Train brakes are vacuum, the motor driven exhauster in the radiator compartment having sufficient capacity to brake a 400 ft (121.920 m) long train of 300 long tons (304.8 t; 336.0 short tons). The locomotive brakes are operated by straight air equipment of Westinghouse manufacture. The application of the vacuum brake on the train makes an ...