. The street railway review . ails arc laid on 6 x 12 in. stringers set on a concretefoundation. The rails arc bonded with two Chicago bonds at eachjoint with cross bonds at freijuent intervals. The overhead work is carried principally on iron side poles withspan wires, although a few poles with brackets arc used in certainnarrow streets. .Some of the poles carry arc lamps on lop. ThLtrolley wire is No. o B. & S. of hard drawn copper and is doublethroughout to avoid overhead switches. Guard wires arc also used. The feeder cables, of which there are 25 miles in all. are lead cov-ered with paper
. The street railway review . ails arc laid on 6 x 12 in. stringers set on a concretefoundation. The rails arc bonded with two Chicago bonds at eachjoint with cross bonds at freijuent intervals. The overhead work is carried principally on iron side poles withspan wires, although a few poles with brackets arc used in certainnarrow streets. .Some of the poles carry arc lamps on lop. ThLtrolley wire is No. o B. & S. of hard drawn copper and is doublethroughout to avoid overhead switches. Guard wires arc also used. The feeder cables, of which there are 25 miles in all. are lead cov-ered with paper insulation, and are laid directly in the ground with-out further protection exrej)! in the made ground where woodentroughs arc used filled with a bituminous compiund. The electric station of the Ashlon Corporation is a combinedlighting, railway and destructor plant and is essentially up-to-date,the whole of the pumps and accessories being electrically driven. The engine room contains three 6so-h. p. units each consisting. FIG. 3-END VIEW OF GENERATOR. of a Browell—Lindley compound engine direct connected to a 2-pole dynamo made by P. R. Jackson & Co., Ltd. The engines areenclosed with casings and are equipped with Westinghouse andRites patent central valve. They arc supplied with steam at 140lb. pressure; the cylinder dimensions arc l6i and 31 x 17 in. Thegovernors are of the Begtrap automatic fly-wheel type which act onboth cylinders and are regulated by a sliding weight which can beadjusted to govern at 190 r. p. ni. for lighting and 210 r. p. m. fortraction. A general view of the engine room is given in Fig. 2which shows the two fly-wheels on each engine, one between theengine and dynamo 8 ft. in diameter and weighing 3 tons, and theother on the outside of the engine. The latter contains the gov-ernor. Forced lubrication is provided for all the moving parts bytwo sets of oil pumps to each engine, one of which is held in re-serve, and the oil is supplied under 25 lbs. pres
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
