. The Street railway journal . ed-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
. The Street railway journal . ed-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 operated from the engine platform, cuts off each enginefrom the condensing system when the latter is not in operation,and a multi-ported 20-in. relief valve is connected in on theengine side of each gate-valve, which, in case of loss of vacuum,automatically opens to the atmosphere, relieving the exhaustsystem and allowing the engines to run uninterruptedly at. Back of Direct-Connected Switchboard Back of Alternating-Current Switchboard WIRING OF SWITCHBOARDS IN MAIN POWER HOUSE nection to the feed-water system, so that in the event of failureof any individual feed line any boiler may be temporarily fedthrough the blow-off connection. The steam piping is all of standard full-weight wrought-ironpipe with extra heavy flanged fittings and extra heavy Chap-man gate valves with outside yoke and screw. It is arranged atthe boilers, in a system of manifolds having a main and twoauxiliary headers, all interconnected and supplied with valves,so that any part of the system may be isolated for repairswithout interfering with the running of the rest of the main header is connected with the boilers by flanged iron pipes having large radius bends, and is drippedautomatically to the boilers by the Holly Gravity return is supplied to each main engine through a lO-in. pipe,in which a steam s
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
