2 pages matching triple contact plug in this book
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alternating current amount ampere-hours amperes apparatus arc lamps armature arranged automatic boilers brake shoes building cable capacity carbon carried cells cent central charge Chicago circuit coal coils conductors connected construction copper cost cylinder device driving dynamos efficiency elec Electric Company electric light Electrical Engineers electrolytic electromotive force electrons equipment feet friction furnace heat horse-power inches increase installed insulated iron kilowatts lamps load machine magnet mechanical ment metal method miles millimetres motor Nernst lamp Niagara Niagara Falls operation pany patent placed plant plug poles pounds Power Company pressure rail Railroad recently resistance revolutions per minute rheostat road secured shaft shows speed spring station steam steel storage battery supply switch switchboard Telegraph Telephone Company terminals tion track brake Traction train transmission trical tricity trolley tube turbine voltage volts Westinghouse wheels wire wireless York city