. The Street railway journal . is 2)% ft. Three kinds of paving are used: Belgianblock, cobbles and macadam. The Continuous Rail JointCompanys rail joints were used. They are 24 ins. long,a pair weighing 88 lbs. Two No. 0000 bonds are used ateach joint. A view of partly completed track is shown onthis page. All special work except the switches was manufacturedby the Lorain Steel Company. The switches are auto-matic, made of best toughened cast-steel with solid Eramanganese steel open mates manufactured by , of Sheffield. OVERHEAD EQUIPMENT The poles supporting the overhead trol
. The Street railway journal . is 2)% ft. Three kinds of paving are used: Belgianblock, cobbles and macadam. The Continuous Rail JointCompanys rail joints were used. They are 24 ins. long,a pair weighing 88 lbs. Two No. 0000 bonds are used ateach joint. A view of partly completed track is shown onthis page. All special work except the switches was manufacturedby the Lorain Steel Company. The switches are auto-matic, made of best toughened cast-steel with solid Eramanganese steel open mates manufactured by , of Sheffield. OVERHEAD EQUIPMENT The poles supporting the overhead trolley wires are oftwo designs—tubular and lattice. The former, of whichthere are 457, are used only in the Plazas and on a fewof the main streets. The lattice poles number 2765. Allthe poles are planted 6 ft. deep in concrete and also have6 ins. of concrete beneath their bases. A No. 00 groved trolley wire is used. Its total lengthis 70 miles, and it is divided into half-mile sections. The Plan of Top, h^iso^ r^ ^ t 1 B u^ ^ 1. l_ t^ ^ p ^ r^ r • 2 3 * H 273 J Column B, Plan and Elevation of A. DETAILS OF LATTICE POLES w ^ I I I I k A Column CStreet wire was supplied by Edward Le Bas & Company and theNational Conduit & Cable Company. The section insulators of special make were manufac-tured by the Electric Tramway Equipment Company ofBirmingham. This insulator consists of an ordinarydouble-break section insulator with the addition of a knifeswitch. The switch is closed by means of a long bamboopole, which is usually hung on a pole and secured by a pad-lock. A hook on the end of the pole fits into a hole in theblade of the switch, at the back of which is a spring. This May 4, 1907.] STREET RAILWAY JOURNAL. 779 spring, pressing down the blade, assists in making a quickcontact. CABLES The total cable laid was approximately 28 miles, 15 milesaerial and 13 miles underground, as follows: Diameter and description of cable Yards 61/.101 ins. insulated, stee
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
