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 542
ore treated—charges having beenleached in 40 min. with a pressure of from 30 lbs. to 40 lbs. per sq. in. With higher pressuresthe time can be materially shortened. In order to facilitate the leaching of charges carryingan excess of slimes, a valve placed in the head of the barrel, on a level with… … Fig. 4.—The Thies chlorinating barrel. The tailings are discharged into a car which will hold the whole charge of ore and water, andthen run out ; or, if water is abundant, they are discharged into a sluice and washed away. 518 MILLS, GOLD. The amount of water required for leaching is about 120…
Mechanical engineering
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