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 218
nts^ from which it is pushed by recipro-cating plungers onto a coking plate and from thence itpasses to the grate bars. The motion of these bars hasseveral intermediate variations, from a state of rest to amovement of 3I/2 inches. They have a simultaneous move-ment forward by which the fuel is… … Fig. 81 FURNACE VIEW, WILKINSON STOKER In the WilJcinson stoker, Fig. 81, the grate bars are hol-low and are set at an angle of 20°, the inclination beingfrom front to back. Each bar is stepped along its fire 206 Steam Engineering surface;, and on the rise is perforated with a long, narrowslot. A…