. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . r dressing works, con- Z- p a a- i^ i^- f - -P-^- ^B u ys sists of four or five boxes, B, D,etc., or depressions in the bot-tom of a continuous water and sand enter atm and undergo successive wash-ings in each box until the finesand overflows at n. The opera-tion in each of the boxes is asfollows : The heaviest sand atonce finds its way to the bottom ofthe box; the wash-water is broughtin through the pipe
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . r dressing works, con- Z- p a a- i^ i^- f - -P-^- ^B u ys sists of four or five boxes, B, D,etc., or depressions in the bot-tom of a continuous water and sand enter atm and undergo successive wash-ings in each box until the finesand overflows at n. The opera-tion in each of the boxes is asfollows : The heaviest sand atonce finds its way to the bottom ofthe box; the wash-water is broughtin through the pipe, a. in greaterquantity than is sufficient to sup-ply the spigot, E. No sand, there-fore, can find its way out throughE that has not weight enough tostem this water stream. This ex-cess of water also acts by keepingthe whole bottom of the box in aboil and turmoil, thus ever push-ing up the lighter sands andallowing the heavier to keep nearthe bottom. The shield, c, preventsthe stream from rising straightFig. separator. up, thereby confining the turmoil to the bottom of the —This is the general name for the concentrating machine universally employed for. ORE-DRESSING MACHINERy. 591
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
