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Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 175

An illustration from Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary, 1917, leaf 175
624. THREE-THROW BELLOWS.—Operatedby a crank, and gives constant blast without anequalizer. … 625. FOOT BELLOWS, for a blowpipe. Aspring raises the top of the bellows. The rubberbag is confined to the netting to prevent burst-ing. The step at the left is for the foot.

Mechanical movements

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