. The Street railway journal . STORAGE BATTERY AUXILIARY the angle of the Y. On one side of the switch the two trolley wiresare separated to the standard distance, and on the other they arebrought close together or a single wire is used. The switch has aspring tongue, and a trolley wheel approaching the switch from theY will be thrown by this tongue to the right-hand wire, but whengoing in the opposite direction the tongue is forced over and the. ROTARY CONVERTER AND BOOSTER IN HEMPSTEAD SUB-STATION to a point about half-way between Hempstead and Freeport. Aninteresting feature of the overhead
. The Street railway journal . STORAGE BATTERY AUXILIARY the angle of the Y. On one side of the switch the two trolley wiresare separated to the standard distance, and on the other they arebrought close together or a single wire is used. The switch has aspring tongue, and a trolley wheel approaching the switch from theY will be thrown by this tongue to the right-hand wire, but whengoing in the opposite direction the tongue is forced over and the. ROTARY CONVERTER AND BOOSTER IN HEMPSTEAD SUB-STATION to a point about half-way between Hempstead and Freeport. Aninteresting feature of the overhead construction is the method ofcrossing steam railroad tracks. In order to lessen the danger of acar being stalled on a grade crossing, the State Board of RailroadCommissioners approved the overhead trough construction shownin the accompanying engraving. This consists of a sheet-copperinverted trough, backed by iron brackets, through the tops of whichpass the bolts for the two lines of trolley ears. The entire trough,which is insulated by the type of span insulators shown in thecut, is alive, and should the trolley wheel jump from the wire while wheel passes the switch to the single wire beyond. At the angles ofthe Y ordinary overhead switches are used. These spring-tongueswitches are manufactured by A. F. Bartlett, of Saginaw,Mich. The power for the line is supplied by a sub-station at Hemp-stead, which receives alternating current from t
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
