. The Street railway journal . FIG. 2.—PLAN OF DIRECT CONNECTED UNIT shaping of the pole pieces and proportioning of magnetic fieldand armature is such as to insure absolutely sparkless operationunder all changes of load, from no load to 25 per cent temperature rise after a full load run of ten hours is guaranteednot to exceed go deg. Fahr. The bearings, which are ring oiling,are built upon the ball and socket principle. In Fig. 1 is shown the Sturtevant horizontal center-crank en-gine direct-connected to a four-pole generator. This unit is builtwith the engine cylinder of various
. The Street railway journal . FIG. 2.—PLAN OF DIRECT CONNECTED UNIT shaping of the pole pieces and proportioning of magnetic fieldand armature is such as to insure absolutely sparkless operationunder all changes of load, from no load to 25 per cent temperature rise after a full load run of ten hours is guaranteednot to exceed go deg. Fahr. The bearings, which are ring oiling,are built upon the ball and socket principle. In Fig. 1 is shown the Sturtevant horizontal center-crank en-gine direct-connected to a four-pole generator. This unit is builtwith the engine cylinder of various sizes, ranging from 6 ins. x 8ins. to 13 ins. x 12 ins. These are standard combinations, but anyspecial combinations can be made to meet any 2 shows a plan view of a 11-in. x 10-in. horizontal engineconnected to a 30-kw. generator. Fig. 3 shows the side elevationof the Sturtevant M P-4 generator. This unit is provided with asubstantial bed, which serves to render the entire foundation ex-tremely rigid. FIG
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
