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air brake
noun
- a brake or system of brakes operated by compressed air.
- Aeronautics. a device for reducing the air speed of an aircraft by increasing its drag.
- a device for stopping the sails of a windmill by disrupting the flow of air around them.
air brake
noun
- a brake operated by compressed air, esp in heavy vehicles and trains
- Also calleddive brake an articulated flap or small parachute for reducing the speed of an aircraft
- a rotary fan or propeller connected to a shaft to reduce its speed
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Word History and Origins
Origin of air brake1
An Americanism dating back to 1870–75
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Example Sentences
Johnson Welded Products Ohio-based manufacturer of reservoirs for air brake systems.
From The Daily Beast
Johnson Welded Products Ohio-based manufacturer of reservoirs for air brake systems.
From The Daily Beast
George Westinghouse, Jr., about thirty years ago, took out a patent for the air brake.
From Project Gutenberg
Never rely on the air brake to hold the train for any length of time.
From Project Gutenberg
The control valve takes no part in the application or release of the straight air brake.
From Project Gutenberg
However, Westinghouse was not discouraged, but continued to experiment, and the air-brake as we have it to-day was the result.
From Project Gutenberg
Up to that time the air-brake had never been used upon the Rome, Watertown & Ogdensburgh.
From Project Gutenberg
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