International Library of Technology · Scranton, International Textbook Co. · leaf 412
y can bemoved radially towards the center of the commutator as thelatter wears away. Fig. 49 shows the brush holders and brush-holder yokeof the G. E. 52 motor. The yoke «, which is made ofwell-seasoned hard woodtreated with insulatingmaterial, is bolted tothe upper field frameby means of bolts b^… … 68 ELECTRIC RAILWAYS. 24 holder. The brushes are radial, i. e., they point towards thecenter of the commutator, so as to work equally well foreither direction of rotation of the armature. 15. Gears.—The standard gear for the G. E. 52 motorhas 67 teeth and the pinion 14 teeth, making a gear…
Electrical engineering
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