Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 241
be started and run during such pe-riods. While the capacity of a chimney, either with forcedor natural draft, is limited, the natural efficiency may be j 228 Steam Engineering materially increased, so that if more boilers have beenadded than the chimney will properly handle without someassistance,… … Fig. 95three-quarter housing steel plate fan with double hori-zontal engine Co., Buffalo, N. Y. A portion of the casing is removed inorder to show the location of the economizer. Fig. 95 shows another style of fan having double hori-zontal engines, one on each side of the crank shaft, which…
