[Bubier], Edward Trevert, 1858- [from old catalog] · Lynn, Mass., Bubier pub. co. · leaf 164
r mechanical considerations the speed of an11 162 ELECTRICITY AND ITS armature should be kept low ; the ring form, withits large diameter gives requisite peripheralvelocity without unduly heating the bearings. Those armatures just described are designed forfurnishing continuous currents. A dynamo… … 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
Electricity
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