Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 116
all but constant current alwaysfiowing. In this cell the negative electrode is of sheet copper, 3strips of which are riveted together at their centers, after which theends are bent outwardly, so as to present a large surface to theelectrolyte. The zinc is in the form of a crow foot, cast with alug… … riG. 7I.-THE GRAVITY CELL. around the copper to a height almost sufficient to cover it. Thejar is then filled with water and the zinc put in place. In this battery sulphuric acid is formed, which attacks the zincto produce zinc sulphate. This fluid is lighter in weight than thesolution of copper…
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