A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . Its extreme length is about 18 feet, width 3 feet. The top increases from 18 inches to 2feet 9 inches wide. It is constructed of wood, the bottom being covered with sheet-iron. The tye is usually 20 feet long, 2^ feet wide, and is often employed for cleaning hutch-work. In some instances when the ore or dradge is very rich, it is crushed and then tyedinto heads, middles, and tails, the first portion going to pile, the middles re-tyed, and thetails treated as ref
A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . Its extreme length is about 18 feet, width 3 feet. The top increases from 18 inches to 2feet 9 inches wide. It is constructed of wood, the bottom being covered with sheet-iron. The tye is usually 20 feet long, 2^ feet wide, and is often employed for cleaning hutch-work. In some instances when the ore or dradge is very rich, it is crushed and then tyedinto heads, middles, and tails, the first portion going to pile, the middles re-tyed, and thetails treated as refuse or washed in the buddle. Fig. 504, A, inflow of water; b, head of tye ; c, partition board. The stuff is intro-. 505 ?^r^ duced into the cistern d, flows over the inclined front e, and is broomed at f. Between kand G are the heads, from g to ii middles, h to i, tails. At k is an outlet launder regulatedwith a flood shut. An outline plan of the tye is shown, fg. 505, The strip also consists of a wooden boxwith its bottom inclined at a greater or lessangle, in order to suit the character of the stuffto be operated upon. The object of this appa-ratus is somewhat analogous to the separatingl)Ox, viz., to deprive the ore of the fine with which it may be associated, and there-by to enrich it for subsequent treatment. A rather strong stream of water is emplovoii,against which the mixed mineral is violently projected by means of a shovel. When oresare strong and clean in their grain, but little loss can occur from this process, providedproper care be exercised in conducting it; but if tlicir structure be delicate and the constitu-ents intimately mixed, the wastage must necessarily be groat.
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Keywords: ., bookcentury1800, bookdecade1860, bookpublishernewyo, bookyear1864
