Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 76
209. PLAYFORD MECHAN-ICAL STOKER, for soft coal. Alink grate moved by a sprocket shaftcarries the coal, fed by a hopper,forward under the boiler, returningover a drum shaft at the bridgewall. A screw conveyer brings theash and clinker forward to the pit. … AMERICAN BOILER STOKER. —The coal is carried under^ the grate from the hopper^^ by a spiral screw and forced^SWl^^M P over the grate. Sid« View of Stober. End View.
Mechanical movements
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