. The street railway review . Fir,. 1—100-IX. MAGNETIC CLI:TCH. 3,000 h. p. at 150 r. p. m. This is one of three clutches now inuse connecting the engines and generators in the central stationof the Imperial Electric Light, Heat & Power Co., at St. Louis, aview of the equipment of which is shown in Fig. 2. The experiencewith this plant demonstrates that this form of clutch is applicableto the large size units now being installed for power station pur-poses, whereas the ordinary friction clutch becomes unwieldy andunsightly after passing the 500-h. p. IK;. 2-PL.\NT of IMlERIAI^ EI,ECTRIC
. The street railway review . Fir,. 1—100-IX. MAGNETIC CLI:TCH. 3,000 h. p. at 150 r. p. m. This is one of three clutches now inuse connecting the engines and generators in the central stationof the Imperial Electric Light, Heat & Power Co., at St. Louis, aview of the equipment of which is shown in Fig. 2. The experiencewith this plant demonstrates that this form of clutch is applicableto the large size units now being installed for power station pur-poses, whereas the ordinary friction clutch becomes unwieldy andunsightly after passing the 500-h. p. IK;. 2-PL.\NT of IMlERIAI^ EI,ECTRIC LIGHT HEAT & POWER CO.,ST. LOUIS. accessible for inspection. The loss in the clutch, due to the con-tinuous use of current while the clutch is in operation, is given asone-ten thousandth of its power transmitting capacity. CONTINUOUS MEAN PRESSURE INDICATORFOR STEAM ENGINES. A paper on this subject was presented before the Institute of Me-chanical Engineers (England) by Prof. William Ripper, inwhich the author described the construction and operation of in-struments by which the mean pressures in an engine cylinder canbe read directly from steam gages. Originally the mean pressure gage was designed for engines ofhigh rotative speeds, but it was found possible to use it for enginesrunning at any speed. The apparatus consists of a valve chestwith a valve of the four-way-cock type driven from the movingparts of the engine so that steam from the driving or workingend of the cylinder is directed to one steam gage and steam fromthe exhaust or back pr
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
