. The street railway review . EXHAUST PIPING. DETAIL OF EXPANSION JOINT IN EXHAUST PIPE. condensers arc of the vertical twin air pump type, made by theGeorge F. Blake Manufacturing Co., of East Cambridge, water cylinders are each 48 in. in diameter by 24 in. stroke. July 20, 1904.] STREET RAILWAY REVIEW. 447. EXTERIOR UF PuWER STATION. and the steam cylinders 18 in. in diameter by 24 in. stroke. Thepiping is arranged so that the pumps may exhaust into the engine re-ceivers when so desired. The injection pipes connecting the con-densers with the intake are made very short and direct, b
. The street railway review . EXHAUST PIPING. DETAIL OF EXPANSION JOINT IN EXHAUST PIPE. condensers arc of the vertical twin air pump type, made by theGeorge F. Blake Manufacturing Co., of East Cambridge, water cylinders are each 48 in. in diameter by 24 in. stroke. July 20, 1904.] STREET RAILWAY REVIEW. 447. EXTERIOR UF PuWER STATION. and the steam cylinders 18 in. in diameter by 24 in. stroke. Thepiping is arranged so that the pumps may exhaust into the engine re-ceivers when so desired. The injection pipes connecting the con-densers with the intake are made very short and direct, by reasonof the location of the condensers with respect to the tminel, and theopportunity for leaks correspondingly reduced. The feed-water piping system is such that either hot or coldwater can be supplied to the boilers, the arrangement being as fol-lows: The 14-in. suction pipe from the intake tunnel suppliesthe service pump. From the service pump is an lo-in. dischargetil the feed-water heater. From the heater a lo-in. pipe leads to the basement and extends under the two pairs oftwin feed pumps. From the lo-in. hot water maina 6-in. riser goes to each pair of pumps. A second8-in. main is carried from the service pump to thefeed pumps, and thence continues to the heater,forming a loop with the regular heater
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