Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 74
199-200. BOILER OFTHE SERPOLLETTRICYCLE.—The steamgenerating surface is madeof iron pipe, flattened andcorrugated, then coiledinto a volute form with theinner end turned up, and the outer end to project through the furnace shell. The cuts show a vertical section and horizontal plan. … 201. SERPOLLETS STEAM GENER-ATOR, showing the corrugated flattened tubecoiled into a volute. The width of the internalspace is less than one-eighth of an inch.
Mechanical movements
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