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 240
ii 11 Fig. 94 buffalo mechanical draft apparatus Horizontal Tandem Fans—Casing and Economizer Partly He moved to Show Damper der adverse conditions of weather, when a blower properlyapplied needs only to be started and run during such pe-riods. While the capacity of a chimney, either with forcedor…