Bellows: Difference between revisions

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(Based on Glossary of Bridge Terminology; Chapter LXXX of J.A.L. Waddell's Bridge Engineering (New York: Wiley, 1916))
 
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Latest revision as of 18:38, 31 December 2007

An apparatus or box with flexible leather sides so arranged by means of a valve that it may be opened and closed in succession, thereby producing a current of air.