. The Street railway journal . and theconnection with the hot well of the condenser system is alsoprovided with proper arrangements for excluding dirt and of these duplicate comicctions are guarded by valves sothat either pump may be repaired without interrupting theservice of the other, and the water supply may be obtainedfrom either the suction well or the water main when the coii-denser is out of service. 870 STREET RAILWAY JOURNAL. [Vol. XXL No. 24. The high-pressure water piping from the pumps to theboilers is of extra heavy quahty and has extra heavy water passes thr
. The Street railway journal . and theconnection with the hot well of the condenser system is alsoprovided with proper arrangements for excluding dirt and of these duplicate comicctions are guarded by valves sothat either pump may be repaired without interrupting theservice of the other, and the water supply may be obtainedfrom either the suction well or the water main when the coii-denser is out of service. 870 STREET RAILWAY JOURNAL. [Vol. XXL No. 24. The high-pressure water piping from the pumps to theboilers is of extra heavy quahty and has extra heavy water passes through an especially designed horizontalclosed feed-water heater on its way to the boilers, provisionbeing made so that it may be by-passed in case of accident orto facilitate cleaning or repairs. The blow-off pipe of each boiler is provided with an angle-valve and a flanged gate-valve. In addition a similar valveis provided in the main blow-off line between the boilersand the free end leading to Roaring Brook, with a cross con-. reaching the throttle valve. All gaskets in the main line ofpiping are of corrugated copper. The first auxiliary steam header, 5 ins. in size, serves tosupply steam to the stoker engines, the condenser, circulatingpump and the rotative dry vacuum pump. The second auxiliary header, 8 ins. in size, supplies steam tothe boiler feed-pump and the blower engines, to the exciterengines through steam separators of special design, to the aircompressor for the cleaning system and to the steam pump forthe car house hot-water heating system. All drips from the live steam system are connected with aHolly receiver, and the water of condensation is automaticallyreturned to the boilers by the .Holly gravity return system. The main exhaust pipe of each engine, 24 ins. in diameter,is of cast iron. A 30-in. condenser entrainer is set in the middleof the extension to the engine room, and with easy bends thetwo main exhaust pipes lead to this. A gate-valve, hydraulic-ally op
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
