. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . s Sinclair Co.—igog A Practical Journal of Motive Power, Rolling Stock and Appliances VoL XXII. 114 Liberty Street, New York, March, 1909 No. 3 Electric Locomotives for the G. N. For the purpose of operating trainsthrough the Cascade tunnel the GreatNorthern recently ordered four electriclocomotives. These have just beencompleted, and were built by the Amer-ican Locomotive Company in conjunc-tion with the General Electric Com- are capable of exerting a maximumtorque of at least three times th
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . s Sinclair Co.—igog A Practical Journal of Motive Power, Rolling Stock and Appliances VoL XXII. 114 Liberty Street, New York, March, 1909 No. 3 Electric Locomotives for the G. N. For the purpose of operating trainsthrough the Cascade tunnel the GreatNorthern recently ordered four electriclocomotives. These have just beencompleted, and were built by the Amer-ican Locomotive Company in conjunc-tion with the General Electric Com- are capable of exerting a maximumtorque of at least three times the guar-anteed full load running torque. Each truck is equipped with two mo-tors and on account of the large size ofthe geared motors • a special form ofdrive is used, there being a pinionon each end of the niutur shaft. strain of each motor is divided betweenthe two sets of gears. The gear ratiois I to As far as the mechanical features areconcerned, the design represents a dis-tinct departure from previous practicein electric locomotive construction. Italso represents the adaptability of. . 1 •! Il-. I II- H. Emerson, Superintendent of Motive Power. ivic iMDiiv !■: i( ii; Kl \ r Mil; I II ! KX \\ General Electric and American i-oco. Cos., iiuilders. pany and under the supervision of T. Hutchinson, the consulting en-gineer for the road. Each of these locomotives has atotal weight in working order of 230,-000 lbs., all of which is carried on thedrivers. The overall length is 44 ins. and the rigid wheel base is 11 the driving wheels are 60 ins. in di-aineter. The motors are of the three-phase induction type, with plain sec-ondary circuit rheostatic control, and These pinions engage gear bandsshrunk on the extension of the driv-ing wheel centers. The gear bandr arecut in pairs and are set so that theteeth on the two wheels line up accu-rately. The pinions on the motor shaftare, of course, set in accurate line. Bythis
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