air pressure brake

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• Counter-pressure brake — The counter pressure brake (German: Gegendruckbremse), also named the Riggenbach counter pressure brake after its inventor, Niklaus Riggenbach, is a dynamic railway brake on steam locomotives that, through a combination of means, brakes the… …   Wikipedia

• air brake — air ,brake noun count a type of BRAKE (=piece of equipment to make a vehicle stop or go more slowly) that works by air pressure, for example on a bus or truck …   Usage of the words and phrases in modern English

• air brake — noun 1. : a brake operated by a piston driven by compressed air from reservoirs connected to brake cylinders by triple valves which upon reduction of air pressure in the brake pipe automatically admit air from the reservoirs into the brake… …   Useful english dictionary

• air brake — 1. a brake or system of brakes operated by compressed air. 2. Aeron. a device for reducing the air speed of an aircraft by increasing its drag. 3. a device for stopping the sails of a windmill by disrupting the flow of air around them. [1870 75,… …   Universalium

• pressure — [1] The force due to the weight of a substance exerted over the area the substance occupies. In metric measure, it is the force acting on each square metre. To calculate pressure, divide the force (in newtons) by the area (in square metres). It… …   Dictionary of automotive terms

• air — n. & v. n. 1 an invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen. 2 a the earth s atmosphere. b the free or unconfined space in the atmosphere (birds of the air; in the open air). c the atmosphere as a… …   Useful english dictionary

• air — air1 airlike, adj. /air/, n. 1. a mixture of nitrogen, oxygen, and minute amounts of other gases that surrounds the earth and forms its atmosphere. 2. a stir in the atmosphere; a light breeze. 3. overhead space; sky: The planes filled the air. 4 …   Universalium

• air brake — noun 1》 a brake worked by air pressure. 2》 a movable flap or other device on an aircraft to reduce its speed …   English new terms dictionary

• brake pipe — noun : the main pipe of a pressure brake system extending the entire length of the train and connecting the manual and the automatic actuating devices on individual vehicles called also train line; see air brake …   Useful english dictionary

• Air brake (road vehicle) — Air brakes are used in trucks, buses, trailers, and semi trailers. George Westinghouse first developed air brakes for use in railway service. A safer air brake was patented by him on March 5, 1872. Originally constructed for use on trains, and… …   Wikipedia

• Brake bleeding — is the procedure performed on hydraulic brake systems whereby the brake lines (the pipes and hoses containing the brake fluid) are purged of any air bubbles. This is necessary because, while the brake fluid is an incompressible liquid, air… …   Wikipedia