Modern electricity and magnetism, theoretically and practically considered (1885)
Avery, Elroy M[cKendree], 1844- [from old catalog] · New York and Chicago, Sheldon and company · leaf 176
he tempera-ture of the inter-vening arc is un-equalled by anyother source of ar-tificial heat. The mechanismshown in the upperpart of Fig. 246, is forthe purpose of auto-matically separating the carbons and ^^feeding^ themtogether as they are burned away at their tips and for thepurpose of cutting… … Fig. 246. 346 INDUCED ELECTRICITY, now quite common. Lamps of a hundred thousand can-dle power have been made. The current may be furnishedby a battery of forty or more Groye^s cells but, for eco-nomical reasons, it is almost uniyersally supplied by a dy-namo-electric machine. {a.) It is necessary…
Electricity · Magnetism
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