American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 37
f electromotive force for telegrapli lines inGreat Britain, taking there the place of the gravity cell in this country.* The plates used in the Fuller cell are zinc and carbon. The zinc plate z. Fig. 5,is pyramidal, or cone shaped, and is placed within a porous cup c containing a dilutesolution of… … FULLER CELL. within the gbiss jar j. The carbon is partly immersed in a sohition composed of bich-romate of potash, 3 parts; sulphnric acid, i part, and water 9 parts. This solution isgenerally known as electropoion. In the bot-tom of the porous cup about two ounces ofmercury are placed for the…
Telegraph
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