. The Street railway journal . n, the main exciting pole pieces arebolted to the frame at an angle of 45 degs. to the horizontal,while the comutating pole pieces are bolted to the frame atpoints midway between the exciting poles. Small holesfitted with malleable iron covers and gaskets are providedat both ends of the motor for inspection or ventilationwhenever service conditions will permit. With the type of frame the main exciting pole piecesare located at the top, bottom and sides with the commutat-ing poles between. In both types of frame the openingover the commutator is inclined at a
. The Street railway journal . n, the main exciting pole pieces arebolted to the frame at an angle of 45 degs. to the horizontal,while the comutating pole pieces are bolted to the frame atpoints midway between the exciting poles. Small holesfitted with malleable iron covers and gaskets are providedat both ends of the motor for inspection or ventilationwhenever service conditions will permit. With the type of frame the main exciting pole piecesare located at the top, bottom and sides with the commutat-ing poles between. In both types of frame the openingover the commutator is inclined at an angle to allow thebrush-holders being readily reached either from under thecar, or if desired, through a trap door in the floor of thecar. All bearings are designed for oil and waste lubrica-tion. In addition to the advantages of sparkless commutation,the manufacturers claim these motors have less wear on thecommutator, increased life of brushes, they are cleaner andmore reliable because of the reduced carbon and copper dust. (SS- €» COMMUTATING POLE MOTOR WITH FRAME LOWEREDAND ARMATURE IN LOWER HALF from brushes and commutator, and they have increased effi-ciency and free running capacity, because of lower coreand commutator losses. The capacities of these motors for continuous serviceare high owing to their good electrical efficiency and ven-tilation. No announcement is made by the manufacturersof any voltage for these motors higher than 600. »-♦.» The Brooklyn Rapid Transit Employees Associationhas decided to co-operate with the railroad ccmipany in car-ing for members retired on a pension by paying their as-sociation dues. June 22, 1907.] STREET RAILWAY TOURNAL. 1113 NEW ANTI-STRADDLING DEVICE INDIANA COUNTY RAILWAY SYSTEM IN OPERATION, A variation from the usual form of anti-straddliiig de-vices for switch tongues has recently been devised by AlfredOldfield, lately engineer of the Winnipeg Electric Rail-way Company. A horizontal link is attached to the baseof the
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
