Air brake
Brake Brake (br[=a]k), n. [OE. brake; cf. LG. brake an instrument for breaking flax, G. breche, fr. the root of E. break. See Break, v. t., and cf. {Breach}.] 1. An instrument or machine to break or bruise the woody part of flax or hemp so that it may be separated from the fiber. [1913 Webster]

2. An extended handle by means of which a number of men can unite in working a pump, as in a fire engine. [1913 Webster]

3. A baker's kneading though. --Johnson. [1913 Webster]

4. A sharp bit or snaffle. [1913 Webster]

Pampered jades . . . which need nor break nor bit. --Gascoigne. [1913 Webster]

5. A frame for confining a refractory horse while the smith is shoeing him; also, an inclosure to restrain cattle, horses, etc. [1913 Webster]

A horse . . . which Philip had bought . . . and because of his fierceness kept him within a brake of iron bars. --J. Brende. [1913 Webster]

6. That part of a carriage, as of a movable battery, or engine, which enables it to turn. [1913 Webster]

7. (Mil.) An ancient engine of war analogous to the crossbow and ballista. [1913 Webster]

8. (Agric.) A large, heavy harrow for breaking clods after plowing; a drag. [1913 Webster]

9. A piece of mechanism for retarding or stopping motion by friction, as of a carriage or railway car, by the pressure of rubbers against the wheels, or of clogs or ratchets against the track or roadway, or of a pivoted lever against a wheel or drum in a machine. [1913 Webster]

10. (Engin.) An apparatus for testing the power of a steam engine, or other motor, by weighing the amount of friction that the motor will overcome; a friction brake. [1913 Webster]

11. A cart or carriage without a body, used in breaking in horses. [1913 Webster]

12. An ancient instrument of torture. --Holinshed. [1913 Webster]

{Air brake}. See {Air brake}, in the Vocabulary.

{Brake beam} or {Brake bar}, the beam that connects the brake blocks of opposite wheels.

{Brake block}. (a) The part of a brake holding the brake shoe. (b) A brake shoe.

{Brake shoe} or {Brake rubber}, the part of a brake against which the wheel rubs.

{Brake wheel}, a wheel on the platform or top of a car by which brakes are operated.

{Continuous brake} . See under {Continuous}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Air brake — may refer to the following contexts:* Air brake (aircraft), in aeronautics, a type of flight control system used on aircraft to reduce speed* Railway air brake, a type of brake operated by compressed air and used on locomotives and railroad cars… …   Wikipedia

  • Air brake — (Mach.) A railway brake powered by compressed air. Knight. Syn: airbrake. [1913 Webster] …   The Collaborative International Dictionary of English

  • air brake — ☆ air brake n. 1. a brake operated by the action of compressed air on a piston 2. popularly SPEED BRAKE …   English World dictionary

  • air brake — air′ brake n. 1) mac a brake or system of brakes operated by compressed air 2) aer. a device for reducing the air speed of an aircraft by increasing its drag • Etymology: 1870–75, amer …   From formal English to slang

  • air-brake — airˈ brake noun 1. A brake worked by compressed air 2. A means of reducing the speed of an aircraft • • • Main Entry: ↑air …   Useful english dictionary

  • 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

  • air brake — UK / US noun [countable] Word forms air brake : singular air brake plural air brakes a type of brake (= piece of equipment to make a vehicle stop or go more slowly) that works using compressed air, for example on a bus or truck …   English dictionary

  • air brake — pneumatinis stabdys statusas T sritis automatika atitikmenys: angl. air brake; pneumatic brake vok. Druckluftbremse, f; pneumatische Bremse, f rus. воздушный тормоз, m; пневматический тормоз, m pranc. frein à air comprimé, m; frein aérodynamique …   Automatikos terminų žodynas

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