Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 551
he position represented, a deposit of copper will be found over the black-leaded surface, and it will be a perfect impression of the wax cast. Such a copper cast, or any article in copper having a perfectly cleansurface, can be readily covered by a film of silver by means of a similararrangement,… … Fig. 264.—Electro-plating. 500 E±.£CTRICITY. commercial industry of great importance ; and this process has completelysuperseded the old plan of covering the metallic article to be plated withan amalgam of silver or of gold, and then exposing it to heat, which vola-tized the mercury, leaving a thin…
Inventions
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.
