Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 237
88oa. AIR SHIP.—General form of those inuse that have had any suc-cess. Too many come togrief and they should be awarning to the ambitioussoarer, to learn what hispredecessors have done. 8806. RAILROAD GATE operated by com-pressed air.—A hand pump in the gate housecompresses air which is…
Mechanical movements
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