Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 94
Fig.-i MAXIMS AUTOMATIC LAMPS. 79 … Fiija. ;;9 and 40. 80 THK ELECTRIC LKHIT. current will at ouco C(-)nimcncc to pass, and the electro magnet inthe bottom of the lamp will become excited and draw down-ward the two armatures, one of which draws down one end ofthe cord that supports the negative carbon, and the other locksthe gearing.…
Electrical engineering
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