Mechanical movements, powers, devices and appliances (1901)
Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley & company · leaf 202
723. RHEOSTAT OR P.ESISTANCE COILS,with variable switch. Coils are made of iron, platinum,or German silver wire. The switch connections are somade that the coils may be made to connect the linewith one or any number in series. … 724. TROLLEY CAR,showing the circuit from thegenerator g, through the linewire to car and return byrail circuit. 725. SECTIONAL FEEDER SYSTEM for electric railways.The trolley wire line is divided into a convenient number of sections F, for feeders froma long main line,or divided intoseveral…
Mechanical movements
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![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-339-142.webp)
