A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . tion of them off again at c, whilst the richer and heavier matters, which fall to the bottomof the arrangement, escape through the launder d, and are regulated by means of the plugA, and the regulating screw a. At Devon Consols the slimes flowing from the launder d are directly passed over Brun-tons machines, but instead of these sleeping tables may be employed. In many cases sand and slime stuff are much commingled with clay, and require to bebroken and disinte


A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . tion of them off again at c, whilst the richer and heavier matters, which fall to the bottomof the arrangement, escape through the launder d, and are regulated by means of the plugA, and the regulating screw a. At Devon Consols the slimes flowing from the launder d are directly passed over Brun-tons machines, but instead of these sleeping tables may be employed. In many cases sand and slime stuff are much commingled with clay, and require to bebroken and disintegrated before the ore can be extracted. A method for accomplishingthis is shown in Jig. 511. a is the circumferential line of a round buddle ; B, launder lead- 511 /) #-NH^l^. ing to such buddle, or any other enriching apparatus ; c , sifting trommel; d, rotating pad-dles ; E, tormentor ; f, driving shaft. A modification of this method is found in the slime trommel, fig. 512. a, hopper, into 612


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Keywords: ., bookcentury1800, bookdecade1860, bookpublishernewyo, bookyear1864