Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 179
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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