Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 74
210. AMERICAN BOILER STOKER. —The coal is carried under^ the grate from the hopperi| by a spiral screw and forced4lj up over the grate. Side View of Stoker. End View. … 211. MECHANICALSTOKER for a boiler fur-nace, Playford model.The coal is carried into thefurnace from a hopper bya travelling grate. A gatewith rack and gear, oper-ated by a lever, regulatesthe depth of the coal-feed.
Mechanical movements
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