. The street railway review . POLE AND TRACK CONS fRUCT ION. about 21 ft. above the surface of the roadbed and the direct cur-rent feeders are carried upon insulators attaclied to the bracketsnear the pole. The feeders are attached to lightning arresters atvv^ery half mile. Just behind each bracket are two pony glassinsulators which carry the telephone circuit which extends alongthe whole length of the line. The telephone wires are transposedat every fifth pole to prevent induction. A telephone box is erectedore the pole at each turnout and each car is provided with a con-necting hook and pole
. The street railway review . POLE AND TRACK CONS fRUCT ION. about 21 ft. above the surface of the roadbed and the direct cur-rent feeders are carried upon insulators attaclied to the bracketsnear the pole. The feeders are attached to lightning arresters atvv^ery half mile. Just behind each bracket are two pony glassinsulators which carry the telephone circuit which extends alongthe whole length of the line. The telephone wires are transposedat every fifth pole to prevent induction. A telephone box is erectedore the pole at each turnout and each car is provided with a con-necting hook and pole so that connection between a car set andthe line can be made at any point. These turnouts arc, on anaverage, tliree miles EXTERIOR OF SUBSTATION. 150 ft. long and 54 ft. wide inside. The engine room contains atpresent one 6oo-h. p. cross-compound condensing Hamilton-Corliss engine made by the Hooven, Owens & Rentschler Co., forwhich steam is supplied from two Babcock & Wilcox boilers of400 h. p. nominal capacity. A plan and end elevation of the en-gine and boiler rooms are herewith illustrated and it will be seenthat provision for three more engines and three more boilers hasbeen made. The boilers are run at 160 lb. gage pressure and thepipes from the boilers bend up to a steam header running alongthe boiler room wall at a height of about 15 ft. above the tops cfthe boilers. Branches from this run down to the engine passingthrough the partition wall. Just inside the engine room and closeto the wall are Goubert steam separators to which the enginebranch pipes are connected. In the boiler room are Goubert teedwater heaters; Penberthy injectors are provided in addition to thefeed pumps. Directly con
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
