Methods of overhead construction employed by Brooklyn and Queens Transit Corp in new trolley-bus extension, ie, electrically operated frogs; backbone construction at same loop and Dahill Road loop in Brooklyn; frogs and insulated diagonal crossing; side feed span; insulated crossings and methods of supporting trolley wires from span at Flatbush Avenue loop.
Brooklyn's new trolley bus line
Elec Traction
Electric Traction ; 28 , n 11
1932
Article (Journal)
English
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