. The street railway review . mployed, one being of sin-gle section and the other built up in two sections. The weight ofthe first type is 950 lbs. and of the second 1,300 lbs. The poles arepainted gray, which makes them less noticeable than any othercolor. The poles are of crnamental design and some of them carrya lantern for a gaslight. The trolley wire is about No. 000 and ishard drawn copper wire of circular section. The trolley wires aredivided into sections of a half mile long and reinforced by feeder cables of 400,000 c. m. which are carried in iron troughs. There isan absence of guard
. The street railway review . mployed, one being of sin-gle section and the other built up in two sections. The weight ofthe first type is 950 lbs. and of the second 1,300 lbs. The poles arepainted gray, which makes them less noticeable than any othercolor. The poles are of crnamental design and some of them carrya lantern for a gaslight. The trolley wire is about No. 000 and ishard drawn copper wire of circular section. The trolley wires aredivided into sections of a half mile long and reinforced by feeder cables of 400,000 c. m. which are carried in iron troughs. There isan absence of guard wires, which is usual in English cities, butwherever telegraph or telephone wires cross, a strip of wood is at-tached to the upper side of the wire and effectually guards it. Liverpool has tried the experiment of combining the power sta-tion of tramways with the lighting station, although separate en-gines and generators are operated for supplying current for thetramway lines. In the interior view of the engine room the first. BRILL CAR. three units are for tramway service. The same boiler plant is usedfor both the tramway and lighting Engines. Three compound non-condensing triple-crank Williams engines of 300-h. p. capacity aredirect connected to two-pole shunt-wound sso-volt Siemens gener-ators. The normal speed is 350 r. p. m. Working in parallel withthe dynamos is a large battery of storage batteries; it is unusuallypowerful, and could give 1,000 amperes for five minutes, if neces-sary. The battery is erected on the floor of a spacious room adjoiningthe engine room. It consists of 246 cells, manufactured by theElectrical Power Storage Company, each cell containing 2i plates,the battery being rated at a maximum discharge of 480 amperes at550 volts for one hour. The switchboard is simpler than one usually finds in a tramwaystation. An automatic circuit breaker protects the feeder circuits,and a similar device is employed to protect the battery, and thedynamos are supplied wit
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
