. The Street railway journal . for high-tensioninsulation. Mr. Buck states that this material is a very goodinsulator, is very strong mechanically and is entirely free fromcracks and other defects which are common in glass andporcelain. Similar insulators have been used on the Buffalotransmission lines of the Niagara Falls Power Company forthe past three years, and they are the only insulators on thoselines which have caused no trouble. Mr. Buck adds thatit is impossible to shatter Electrose insulators by stone throw-ing, and they will frequently turn a rifle bullet without beingdamaged seriou
. The Street railway journal . for high-tensioninsulation. Mr. Buck states that this material is a very goodinsulator, is very strong mechanically and is entirely free fromcracks and other defects which are common in glass andporcelain. Similar insulators have been used on the Buffalotransmission lines of the Niagara Falls Power Company forthe past three years, and they are the only insulators on thoselines which have caused no trouble. Mr. Buck adds thatit is impossible to shatter Electrose insulators by stone throw-ing, and they will frequently turn a rifle bullet without beingdamaged seriously. 572 STREET RAILWAY JOURNAL. [Vol. XXVIII. No. 15. THE STEAM GENERATING EQUIPMENT OF THE SPRINGSTREET STATION, COLUMBUS A brief description is published in Section II. of this issueof the Spring Street station of the Columbus Railway & LightCompany. This station is perhaps the most interesting of allthe stations in Columbus, partly because it generates most ofthe railway current used, and partly because it is equipped. INDUCED DRAFT AT SPRING STREET STATION, COLUMBUS with both natural and mechanical draft. An account of thesteam generating equipment may therefore not be out ofplace. The station contains two 1000-kw, one 850-kw andtwo 500-kw direct-current generators driven by Green-Wheelock compound engines, also two 500-kw alter-nating current turbo-generators supplying currentfor lighting. Steam at 175 lbs. gage pressure issupplied by four Babcock & Wilcox boilers con-nected to a brick stack and six served by mechanicaldraft fans. Four more boilers, which are to be con-nected to the mechanical draft fans, are being in-stalled. Each of the four boilers connected to the stackcontains 168 tubes, 4 ins. in diameter and 18 ft. are also two 42-in. drums, 23 ft. 5^ ins. long,so that the total heating surface of each boiler, as-suming that half of the cylindrical surface of thedrums is in contact with the hot gases, is 3424 sq. ft.,equivalent to 311 hp at a rating of 1
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
