American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 39
water combine^^with the oxygen of the copper oxide, re-forming water and de-positing pure, metallic copper. The coi^per oxide of the Edison-Lalande cell is ch-ained by roasting copper turnings which are then ground finelyand afterwards formed into blocks of suitable size. To prevent evaporation and… … EDISON DELANDE CELL. THE EDISON-LALANDE CELL. 2 1 The electromotive force of the cell is low, being at first about .98 volt, and after■working for a short time it falls to .7 or .75 volt. The internal resistance of the cellis very low and varies with the size of the cell; the resistance of the…
Telegraph
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