Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 569
anipulated by ELECTRICITY. 5x7 carefvil attendants, perfectly reliable : in proof of this I may state that theelectric li-^ht at the Souter Point Lighthouse, on the coast of Durham, hasnow been exhibited two years and a half, and the light has never beenknown to fail for one minute. ^, 1 . Fi- 78… … Fig. 279.—Gramme Machine, with Horizontal Electro-magnets. There is a pair of current-collectors on each side. This machine weiglB1,540 lbs., its height is 3 ft., and width 2 ft. It will produce a light havingthe intensity of 500 Carcel lamps, which may be doubled by increasing thespeed. Fig, 279…
Inventions
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