[Bubier], Edward Trevert, 1858- [from old catalog] · Lynn, Mass., Bubier pub. co. · leaf 158
ne piece, from pulleyto commutator. In this the core is subdivided 156 ELECTRICITY AND ITS into such a large number of small masses that theeddying heat currents are considerably obviated.A core one and one-half inches in diameter andfour inches long, made in this way and wound withNo. 18 wire,…
Electricity
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