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 850
After cooling, the buttons are washed to remove thechloride of zinc, and to thus render them somewhat porous. Their density then varies from4-, to 3-4. The buttons which serve for the manufacture of the negative plates are thenarranged in a metallic mold, into which antimonial lead is run : this…
Mechanical engineering
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