Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 851
Fig. 14.—Srhnop plateand holdiT. … plates are then short circuited. The hydrogen which is disengaged upon the positive electrodereduces the chloride of lead, and there are thus obtained buttons of spongy lead of a densitybetween 2-5 and ;j-l. while that of ordinary lead is li;55. The buttons used in the manu-facture of the positive…
Mechanical engineering
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