Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 228
veyorpipe, and forming a part of it, is an iron box containing areciprocating steam motor, which, through the medium ofa rocker arm, and pawl and ratchet wheel, drives a screwconveyor shaft that slowly revolves within the pipe, thusforcing the coal forward and up through another box ortrough, which… … Fig. 88typical setting of american stoker under a return tubular BOILER These tuyeres, being at a high temperature, serve to heatthe air in its passage through them, thus greatly aidingcombustion. Fig. 88 is a longitudinal sectional view ofthis stoker. 216 Steam Engineering The speed of the screw…
