[Bubier], Edward Trevert, 1858- [from old catalog] · Lynn, Mass., Bubier pub. co. · leaf 127
APPLICATIONS. 125 exceedingly compact for a given power. The polepieces are of cast-iron, of much greater crosssection than the cores, the lower one being cast inone piece with the base. They are bored out byspecial machinery of great accuracy, and the sur-faces to which the cores are bolted are… … THE C. & C. MOTOR. cross sectional area of pole pieces and armaturecore is always much greater than that of the fieldcores, and the clearance allowed between armatureand poles is reduced to the lowest amount consis- 126 ELECTKICITY AND ITS tent with safety, being never more than 3~64ths oian…
Electricity
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