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 232
claimed by the builders of under-feed stokers^ andthe claim appears to have good foundation, that by pushingthe green coal up, so as to meet the upper crust of ,i^lowingfuel the gases on being distilled immediately come in con-tact with, and are consumed by the burning mass, and theformation of… … Fig. Ul is the fact that practically all of the coal is utilized, therebeing no waste caused by the slack coal or fine screeningsdropped through the grate bars into the ash pit uncon-•sumed. A good substitute for the mechanical stoker is an outsidefurnace, by which is meant a boiler installation…
