. The street railway review . on for interest, redemption of debt, andincome tax, enabled the corporation to apportion £46,000 in aid ofrates. £ in street improvements, and £ to renewals andilepreciation. The £ in aid of rates was still further in-creased by the addition of £5,000 transferred from a reserve fundacumulated in former years. 778 STREET RAILWAY REVIEW [Vol. XV, No. lO. The National Electric CoInduction Motors. New The accompanying illustrations show the detaib of a new typeof induction motor which has just been put upon the market bythe National Electric Co., of M
. The street railway review . on for interest, redemption of debt, andincome tax, enabled the corporation to apportion £46,000 in aid ofrates. £ in street improvements, and £ to renewals andilepreciation. The £ in aid of rates was still further in-creased by the addition of £5,000 transferred from a reserve fundacumulated in former years. 778 STREET RAILWAY REVIEW [Vol. XV, No. lO. The National Electric CoInduction Motors. New The accompanying illustrations show the detaib of a new typeof induction motor which has just been put upon the market bythe National Electric Co., of Milwaukee. Hicse machines are ofextremely heavy and substantial construction, and may be operatedcither from the floor, side wall or ceiling, by changing the bracketswhich carry the bearings. Owing to the high speeds at whichthese motors run, and the small space between the stator androtor, a. very heavy shaft is used, while the bearings are of largearea so as to eliminate as far as pcis^ilic any variations in theair INDUCTION MOTOR PARTS. / The frame is of cast iron into which tlic laminations arc as-sembled. All the windings are form-wound, and between eachcoil air space is provided to take care of the heating. Ventila-tion has also been carefully provided for, there being numerousopenings in the frame, and ventilating spaces between the lami-nations. The rotor is of the squirrel-cage type, and the bear-ings are self oiling and have wearing surfaces of large auto starter is furnished with the squirrel-cage type, consistingof transformers connected across the line with voltage taps suit-able for starting the motor under different conditions of load. .^switch is provided for throwing the motor from one voltage to
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
