Air brake



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.
Contemporary Examples

Johnson Welded Products Ohio-based manufacturer of reservoirs for air brake systems.
After Hobby Lobby, These 82 Corporations Could Drop Birth Control Coverage Abby Haglage June 29, 2014

Johnson Welded Products Ohio-based manufacturer of reservoirs for air brake systems.
The 26 Next Hobby Lobbys Abby Haglage December 16, 2014

Historical Examples

The man who invented the air brake was not asked to come in and take charge of all transportation.
Letters from an Old Railway Official Charles DeLano Hine

Never rely on the air brake to hold the train for any length of time.
The Traveling Engineers’ Association Anonymous

There was no air brake attachment and the coupling was done quickly.
Ralph on the Overland Express Allen Chapman

The perfection of the air brake removed one great source of danger that menaced the crews of freight trains.
Every-day Science: Volume VII. The Conquest of Time and Space Henry Smith Williams

We have referred here specifically to the air brake as used on steam railroads.
Every-day Science: Volume VII. The Conquest of Time and Space Henry Smith Williams

Soon the car jarred and struggled under the air brake, and then slowed down, grinding and pounding, almost to a stop.
The Short Line War Samuel Merwin

As they sunk out of sight Jack whirled the wheel around and applied the air brake.
Jack Wright and His Electric Stage; “Noname”

In a locomotive the air brake and the sand box are elements not found in other engines.
Modern Machine-Shop Practice, Volumes I and II Joshua Rose

noun
a brake operated by compressed air, esp in heavy vehicles and trains
Also called dive 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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  • Air-breathe

    (of an engine, aircraft, missile, etc.) to take in air from the atmosphere to oxidize the fuel for combustion.

  • Air-breather

    an aircraft, missile, or submarine engine that requires air from the atmosphere for the combustion of its fuel.



  • Air brick

    a ceramic or metal unit the size of a brick, open at the sides for admitting air to a building interior.

  • Air bridge

    noun (Brit) a link by air transport between two places, esp two places separated by a stretch of sea



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