History, theory, and practice of the electric telegraph (1866)
Prescott, George B.(George Bartlett),1830-1894 · Boston, Ticknor and Fields · leaf 52
wide by ten inlength, fastened to a beam of wood, upon the opposite side ofwhich is a plate of zinc mercurialized, and both plunged into aglass tumbler. In arranging a series of cells, the zinc of the onecup is attached to the platinum of the next. The electro-motive force of this battery is about… … Fig. 12. zinc plates; P, platinized plates ; T, tumblers. In battery Fig. 1,the wooden pieces rest upon the glasses. In battery Fig. 2, theyrest on iron brackets against supports. This battery is based upon the principles of the Smee pile, butis an improvement in form and in the mode of connecting…
Telegraph
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