. The Street railway journal . FIG. l.—MOTOR-DRIVEN AIR COMPRESSOR COMPLETE by the Philadelphia Air Brake & Machine Company, Phil-adelphia, Pa. Fig. I shows the motor-driven air COxMBJNATION PASSENGER AND BAGGAGE CAR FUR THE ?I.\GEKST(;\VX& NORTHERN RAILWAY which consists of a motor and air pump enclosed in a dust-and-waterproof casing. The motor is a series-wound conse-quent-pole machine, being of ample size and capacity to with-stand overloads and hard service. The armature is built of Swedish charcoal-iron laminationsassembled on a steel shaft. The armature coils are insulatedw
. The Street railway journal . FIG. l.—MOTOR-DRIVEN AIR COMPRESSOR COMPLETE by the Philadelphia Air Brake & Machine Company, Phil-adelphia, Pa. Fig. I shows the motor-driven air COxMBJNATION PASSENGER AND BAGGAGE CAR FUR THE ?I.\GEKST(;\VX& NORTHERN RAILWAY which consists of a motor and air pump enclosed in a dust-and-waterproof casing. The motor is a series-wound conse-quent-pole machine, being of ample size and capacity to with-stand overloads and hard service. The armature is built of Swedish charcoal-iron laminationsassembled on a steel shaft. The armature coils are insulatedwith the best material procurable for the purpose. The com-mutator is built of drop-forged copper bars, insulated withIndia mica and assembled on a brass shell. It is made of July 21, 1906.] STREET RAILWAY JOURNAL. 113 ample size to withstand mechanical strain and wear. Thefields are constructed in such a manner that there are nounnecessary cross-connecting wires in the motor, the termi-nals going direct to the brush holders and trolley and ground.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
