. Electric railway gazette . he change was accomplishedby putting a few cells of the battery into a shuntcircuit with the field coils of the motor. Withthese cells the field was kept charged in theright direction, and when the power was shut offand the car going down hill, or when the speedwas too great, the motor was converted into adynamo and the battery partially recharged byits action or the speed controlled perfectly with-out the action of the brake. The invention wasequally applicable to overhead as well as storagesystems. With this system the energy of the or-dinary brake employed by ot
. Electric railway gazette . he change was accomplishedby putting a few cells of the battery into a shuntcircuit with the field coils of the motor. Withthese cells the field was kept charged in theright direction, and when the power was shut offand the car going down hill, or when the speedwas too great, the motor was converted into adynamo and the battery partially recharged byits action or the speed controlled perfectly with-out the action of the brake. The invention wasequally applicable to overhead as well as storagesystems. With this system the energy of the or-dinary brake employed by other systems to holdthe car from going faster than was desired or tobring it to a stop was returned to the battery tobe used over again in the storage system, or tothe line to reduce the power generated at thepower house in an overhead system. Theamount of energy so returned to the batterieson the Beverly and Danvers Street Railway(storage battery system), was by careful measure-ment determined to be about 14 per cent of that. cars are being made by the Brill company, andwill each be equipped with two 15 Spraguemotors. The generating plant has 500 of Victorturbines, while two 8o,ooo-watt Edison genera-tors will at present supply the necessary current. In the construction of the road some verydifficult features had to be met and overcome,which are so far new in electric railway con-struction, especially where for over one-fourthmile the road winds along the edge of a highprecipice, where it was impossible to plant poles,and the overhead wires are fastened by rings andbrackets directly to the rocks. On the entire road there is no grade over ^-^i^-per cent., although there are over 200 curves,besides fourteen turnouts, necessitating the useof over 1,000 pull-off brackets. The road is being laid with 58 lb. steel T rails,and is being constructed in a thoroughly sub-stantial manner. Jhe power station will bebuilt with a house over it for the electrician tolive in, and it is
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895
