Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 97
g thetray, regulate or suspend the reaction between the zinc and its solvent, accordingly as the supply ofhvdrogen is to be produced, suspended, increased, or diminished. The communication with the reservoir is cpened and regulated by means of the cock P, furnishedwith a gallows-screw G for the… … similar vessels of boiler-iron, eacli capable of holding forty gallons. They are lined internally With:opper, being situated upon a wooden frame, so that the bottom of one is two-thirds as high as the topof the other. The upper portion of these vessels communicate by a leaden pipe B, of about half…
Mechanical engineering · Mechanics · Engineering
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