Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 394
Fig. 219. THE REGNAKD ARC LAMP. 373 … Fig. 220. tern of racks. Finally, in the lamp shown in fig. 219 the actionexerted between A and B is combined with that which takesplace between B and C. All these apparatus are evidently in-genious, but they possess no practical value.
Electrical engineering
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