Small, Sidney Aylmer, 1876- [from old catalog] · Chicago, F. J. Drake & co · leaf 378
d its effect remedied by scraping out the burnt micaand filling the space with a solution of silicate of soda(water-glass) or other suitable insulator. Trouble is alsocaused by high mica. This will start sparking whichwill burn the copper, thus aggravating the trouble. Itmay be remedied if caught… … Fig. 177. Westinghouse Complete Rotary Converter Armature from theCommutator Side, 300 K. W., 550 Volts, Three-Phase. Collector. The collector, in comparison with the com-mutator, requires little attention. It should neverthelessbe given sufficient care to insure its running true andwithout being…
Electricity
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