Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 241
o 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 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^, X. 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 shafts which…
