. The street railway review . at in the steam main, and alsowhen the pressure in the inain falls considerably below thatin the boiler. The valve is made by a Glasgow firm, McFar-land & Co., and was described in The Engineer, of Lon-don, from which we take the illustration. These valves are fitted and worked like the ordinary stop valves now in use. ..S. There is on theoutlet branch anordinary screw-down val-ve operat-ed by the hand-wheel. Above this,and mounted onan outer spindle,or sleeve, is aloose, movable pis-ton, having twosurfaces, an upperand lower, onwhich the pressureof the steam acts
. The street railway review . at in the steam main, and alsowhen the pressure in the inain falls considerably below thatin the boiler. The valve is made by a Glasgow firm, McFar-land & Co., and was described in The Engineer, of Lon-don, from which we take the illustration. These valves are fitted and worked like the ordinary stop valves now in use. ..S. There is on theoutlet branch anordinary screw-down val-ve operat-ed by the hand-wheel. Above this,and mounted onan outer spindle,or sleeve, is aloose, movable pis-ton, having twosurfaces, an upperand lower, onwhich the pressureof the steam piston, whichis an easy fit in thechest, is provided,as shown, withRamsbottom the bottom of the piston valve ports are formed, and onthe inner ledge of the bottom of the piston sits a loosedisk valve, which forms a steam-tight face over the portsin the piston. The outer sleeve or spindle is attached toa testing lever, so that by working the lever the piston ismovefi. and its good working conditions ^]l]M-%iU\44S\gvlcw* 461 COST OF POWER FOR ELECTRIC RAILWAYS. Output Measured by Wattmeter in Each Case. Month. MonthlyOutput, Kilowatt-Hours. Cost of Electrical Output per Kilowatt-Hour—Cents. Gals. Cylinder Oil per 10,000 k. w. h. Oilper10,000k. w. h. Lbs. Price of Fuel per Ton of 2,000 Lbs. Station. Fuel. Labor Supplies, Oil,Waste, etc. Water. ^^, Total. Coal. Fuel,per Kind of Fuel I Apr. 1, 238,259 308,125 1,469,156 521,300502,220 . • .764•778 .174 . •■55 •237•257 • .122•099 .030 . ! . .02^ . •579 ^ .8 3^ 1-5 9^353i ^ *** Bituminous. 3 „ 5. Metropolitan Ele-vated, Chicago. 6 .027 •055 • Oil 6 cents per When the stop valve is opened the steam passes throughthe ports in the piston valve and Hfts the non-return valveup against the en
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
