Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 386
1551. CORRECT PRINCIPLE insetting a hot-water house boiler. H, E, circulating pipes. B, water-back or coil. K, draw-off. D, cold-water supply, extending downon inside of boiler. G, hot-water supply taken from top ofboiler. … 1552. UNDER-FEED HEAT-ING FURNACE/^ Colton-Smeadmodel. A smokeless furnace forhouse heating with bituminous coal.A plunger is operated by a leversector and rack to push the coalbeneath the fire.
Mechanical movements
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