mechanical vacuum brakes

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• Vacuum — This article is about empty physical space or the absence of matter. For other uses, see Vacuum (disambiguation). Free space redirects here. For other uses, see Free space (disambiguation). Pump to demonstrate vacuum In everyday usage, vacuum is… …   Wikipedia

• Vacuum brake — The vacuum brake is a braking system used on trains. It was first introduced in the mid 1860s and a variant, the automatic vacuum brake system became almost universal in British train equipment, and in those countries influenced by British… …   Wikipedia

• Vacuum pump — A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The vacuum pump was invented in 1650 by Otto von Guericke. Types Pumps can be broadly categorized according to three… …   Wikipedia

• Retarder (mechanical engineering) — A retarder is a device used to augment or replace some of the functions of primary friction based braking systems of (usually) heavy vehicles.Friction based braking systems are susceptible to fade when used extensively, and this can become… …   Wikipedia

• Manifold vacuum — Not to be confused with Vacuum manifold. Manifold vacuum, or engine vacuum in an internal combustion engine is the difference in air pressure between the engine s intake manifold and Earth s atmosphere. Manifold vacuum is an effect of a piston s… …   Wikipedia

• Railway air brake — Piping diagram from 1920 of a Westinghouse E T Air Brake system on a locomotive …   Wikipedia

• Railway brake — A traditional clasp brake: the brake shoe (brown) bears on the surface (tyre) of the wheel (red), and is operated by the levers (grey) on the left …   Wikipedia

• South African Class 15F 4-8-2 — 2940 Lynette at speed on the Johannesburg Magaliesburg line, 6 April 1992 Power type Steam Designer South African Railways Builder …   Wikipedia

• Heberlein brake — The Heberlein brake is a continuous railway brake used in Germany that is applied by means of a mechanical cable. Train braking is therefore initiated centrally from the locomotive using a winder. This causes the brake clips to be applied on… …   Wikipedia

• British United Traction — Infobox EMU name = British Rail British United Traction imagesize = 300px caption = background = #012545 Manufacturer = Family = Formation = unknown Built = unknown InService = 1953 Weight = Capacity = MaxSpeed = Gauge = Brakes = Engine = 9.6… …   Wikipedia

• Trailer sailer — A trailer sailer is a small yacht or large dinghy style of sailboat that is moved to sailing locations and stored on a road trailer. It is neither a Day sailer or a Pocket cruiser but may be used for either purpose depending upon design… …   Wikipedia