Bellows

The bellows is a device for delivering pressured air in a controlled quantity to a controlled location. At its most simple terms a bellows is a container which is deformable in such a way as to alter its volume which has an outlet or outlets where one wishes to blow air. A bellows differs from a fan in that it exerts much greater control in where it delivers the air.

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Several metallurgical processes require such heat that they could only be developed after the invention of the bellows.

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See also sylphon for uses of metal bellows in experimental physics and engineering.

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Air: Air is a name for the mixture of gases present in the Earth's atmosphere....

Fan: Fan can mean the following:...