The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 95
toneware jars, each containing a porous jar e, whichreceives the carbon element «, of the pile, and is surrounded bythe cylinder of amalgamated zinc b; into the jars «, nitric acid isintroduced; and in the jars rf, a solution of sulpliuric acid, com-posed of one part of acid to seven parts of… … Fig. 2. Another improvement, described under this head of the inven-tion, cimsists in making carbon elements for electric piles bycausing the carbon to be moulded and then subjected to greatpressure, by means of hydraulic or other suitable presses, in orderto obtain the carbon as dense and compact…
Architecture · Civil engineering · Science
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