[Bubier], Edward Trevert, 1858- [from old catalog] · Lynn, Mass., Bubier pub. co. · leaf 165
If in Fig. i the ends of the coil were carried totwo separate rings and a brush bear on each, analternating current could be obtained. As there isbut one coil, the alternations would be too infre-quent for most purposes. To multiply these pul- KECEXT APPLICATIONS. 163 FlJ 10 … saticns, armatures are made with many coils andthe field magnets with an equal number of polepieces. If coils are wound in the shape to fit thearmature of Fig. I and 2, but slipped over the pro-jections of the core of Fig. 3, so that each may fillone-half of two adjacent grooves, or spaces, a…
Electricity
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