Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 74
202. SERVES BOILER TUBE.—The pro-jecting ribs enlarge the area of the fire surface ofthe tube. … 203. SHAKING AND TIP-PING FURNACE GRATE, Tupper model. Each sectionrocks on trunnions by a handlever and connecting bar. 204.
Mechanical movements
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