. Electric railway review . are only 6 by 4 by 6 inches. The valves on all the main lines are of Chapman manu-facture and the 24-inch atmospheric relief valves on the tur-bines were furnished by Worthington. The feed pumps, feedwater heaters, steam traps and theexciter units are located in a part of the boiler-room base-ment which is separated from the remainder by a hollowconcrete-block wall. Main Generating foundations for the turbines are not built on pilingas are the walls, owing to the arrangement of the circulating June S, 1907 ELECTRIC RAILWAY REVIEW l!i water conduit which pa
. Electric railway review . are only 6 by 4 by 6 inches. The valves on all the main lines are of Chapman manu-facture and the 24-inch atmospheric relief valves on the tur-bines were furnished by Worthington. The feed pumps, feedwater heaters, steam traps and theexciter units are located in a part of the boiler-room base-ment which is separated from the remainder by a hollowconcrete-block wall. Main Generating foundations for the turbines are not built on pilingas are the walls, owing to the arrangement of the circulating June S, 1907 ELECTRIC RAILWAY REVIEW l!i water conduit which passes through the turbine foundationsand extends the entire length of the building. These conduits,which each have a cross-sectional area of square feet,are constructed of concrete in which are embedded a largenumber of rails, thus uniting all the foundations, preventingthe uneven settlement of the turbines and also distributingthe load over a larger area. There will be eventually three ■■■. , SOt/THW/UJ. ,- ~. valve. The atmospheric relief pipe is taken out of the con-densers instead of from one of the intermediate stages, aswas the former practice as exhibited in the turbines at theOld Colony Street Railway plant in Providence. The generator room is served by a 50-ton travelingcrane. There are two General Electric exciter units direct-connected to 12 by 15 Harrisburg engines running at 250 revolu-tions per minute. These are installed under the boiler 1,600-gallon Turner oil filter and storage tank has beeninstalled in the boiler-room basement for handling the oilsupply. Switchboard and Electric Wiring. The electrical bay. as previously stated, is 15 feet wideand extends the entire length of the generating annex is three stories high. In the first floor, which isflush with the generating floor, are located the manholes forthe generator leads and the outgoing cables. These are runin double-duct tile conduits on the side of the wall, whencethey lead by
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectstreetr, bookyear1906
