. American engineer and railroad journal . piders, except in the very smallsizes. Fans for ordinary service have usually had a bearingon each side, making the distance between the bearings comparatively short, with no tendency toward deflection to theshaft, but when fans must handle hot gases the bearings must Deci mi:i b, 1904. AMERICAN ENGINEER AND II \l I,IM>AD JOURNAL 483 amoved from the gases In order t> avoid heating necessitates overhanging wheels, or placing one bearingoutside of the Inlel chamber built on, to the side of the American Blower Company b • d specia
. American engineer and railroad journal . piders, except in the very smallsizes. Fans for ordinary service have usually had a bearingon each side, making the distance between the bearings comparatively short, with no tendency toward deflection to theshaft, but when fans must handle hot gases the bearings must Deci mi:i b, 1904. AMERICAN ENGINEER AND II \l I,IM>AD JOURNAL 483 amoved from the gases In order t> avoid heating necessitates overhanging wheels, or placing one bearingoutside of the Inlel chamber built on, to the side of the American Blower Company b • d special attention to the development of details winch will overcome the diffi-culties of the i Mm of the shaft and the effect of the heat upon the i sing in work ol this character Fig. l shows their latest construction, which is giving good results In ser-vo.• n lias a Bplder of i beams In order to secure maximum ngth. In addition to this, every plate braced withbraces from the outer rim to the center to overcome tenden FIG. 1. cies to twist. In the side of the Can housing a deep cone isplfli ed. The Inner bearing Is jacketed and carried on a spe- arm of cantilever construction; this is placed at the apex of the cone, and the distance from the apex to the end of theprojecting shaft seldom exceeds 12 ins. A fan wheel mountedon a shaft with a direct-coupled engine, constructed in thisway. is shown in Fig. 2. The extension of the base of theengine, as shown, is not always used. In some cases an 1
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
