. The Street railway journal . ARD tive transformers, its rotor to the stator of the second motor,while the rotor of the second motor is closed upon a ventilatedrheostat built of iron grids. A controller, similar in form to thechanging switch, serves to vary the resistance of the rheostatin circuit and to operate the reversing switches, so that themovement of the controller handle in one direction operates thelocomotive ahead and in the other direction reverses it at themiddle position of the handle. At one end of the locomotive isa plug switchboard, by which the primary connections of the loc
. The Street railway journal . ARD tive transformers, its rotor to the stator of the second motor,while the rotor of the second motor is closed upon a ventilatedrheostat built of iron grids. A controller, similar in form to thechanging switch, serves to vary the resistance of the rheostatin circuit and to operate the reversing switches, so that themovement of the controller handle in one direction operates thelocomotive ahead and in the other direction reverses it at themiddle position of the handle. At one end of the locomotive isa plug switchboard, by which the primary connections of the locomotive transformers are changed to suit the trolley voltagewhen passing between the high-tension and low-tension sec-tions. To facilitate this change the high-tension and low-tension trolley wires are run side by side for about 100 ft., andall four trolley wires are dead-ended, so the locomotive must bestopped and the trolleys changed from one pair of wires to theother before it can proceed, at which time the switchboard con-. STANDARD LOCOMOTIVE nections are changed. Having to dismount to change thetrolley poles the driver is not likely to forget the switchboard. The locomotives were built by the Baldwin Works; the elec-trical equipment for the same were forwarded by the Westing-house Company to Philadelphia and installed in the BaldwinWorks. The locomotive side frames consist of very heavy castgirders of channel section, framed across at the ends withsimilar castings. The axles are 6 ins. in diameter with , and the wheels are 33 ins. in diameter, of standardrailroad pattern, with i^-in. flanges and 4-in. tread. At the extreme forward end of each locomotive is the plugswitchboard, behind that the transformers, then one motor,then the cab, with the controllers, then the second motor andbehind that the rheostat, which fills up the rest of the space. The locomotives are 14 ft. long, 8 ft. 4 ins. wide, and havea wheel base of 7 ft. Owing to the large number of low br
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
