. The Street railway journal . ure bearings are cast solid with the motor end brackets,and the upper caps of the axle bearings arc cast solid with themotor frames. All bearings are babbit lined, and possess largewearing surfaces. The axle bearings are divided. The motorsare wound for a potential of 225 volts, and have a nominalrating of 125 hp each. ating switches, and may be used to operate either a single car,or a train made up of a number of cars, similarly equipped. Itsworking parts consist of a metal drum made in one casting, withcontact points spaced to give the proper combinations, with
. The Street railway journal . ure bearings are cast solid with the motor end brackets,and the upper caps of the axle bearings arc cast solid with themotor frames. All bearings are babbit lined, and possess largewearing surfaces. The axle bearings are divided. The motorsare wound for a potential of 225 volts, and have a nominalrating of 125 hp each. ating switches, and may be used to operate either a single car,or a train made up of a number of cars, similarly equipped. Itsworking parts consist of a metal drum made in one casting, withcontact points spaced to give the proper combinations, withstationary contact fingers supported on the controller only a low-potential current from the storage battery ishandled, there is practically no burning or other trouble withcontacts, but the fingers are removable and easily replace!. 142 STREET RAILWAY JOURNAL. [Vol. XXIII. No. 4. The main auto-transformer and lighting and balancing trans-formers are of the shell type, with laminated cores outside the Auto-Transformer. Rail Stmt tty. Jot SCHEMATIC DIAGRAM OF CONTROL coils. Their construction follows the lines of standard Westinghouse practice. The induction regulator is of the usual type,and consists of two coils, shown diagramatically ron page 141, one fixed the other movable about itsaxis, and voltage variation is obtained by changeof the relative angular position of these regulator is wound for a secondary poten-tial of approximately 100 volts. This may beeither added to or subtracted from the secondaryvoltage of the auto-transformer, giving at themotor terminals a range of approximately from200 volts to 400 volts. The regulator is oper-ated by a pneumatic mechanism controlled bymagnet valves. These magnet valves are actu-ated by low potential currents from the storagelottery, and governed by the master controller. All switches are of the drum type. The mainand reversing switches are operated pneumatic-ally, and controlled by magnet valves similarto those
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
