Transactions . hSnyder, cuts out one-tenth of the milled product. It consistsmerely of a circular casting shaped much like a miners gold pan,having four openings in its sloping flange, and revolving on the endof a horizontal shaft. Two opposite openings are closed, thusleaving two cuts per revolution. The material to be sampled isdirected by a spout so as to fall inside of the sloping flange ofthe sampler. The rejections slide off the flange and the sampledrops through the openings as they pass under the spout. Thesample makes 25 revolutions per minute, and this gives 3,000 cutsper hour for ab


Transactions . hSnyder, cuts out one-tenth of the milled product. It consistsmerely of a circular casting shaped much like a miners gold pan,having four openings in its sloping flange, and revolving on the endof a horizontal shaft. Two opposite openings are closed, thusleaving two cuts per revolution. The material to be sampled isdirected by a spout so as to fall inside of the sloping flange ofthe sampler. The rejections slide off the flange and the sampledrops through the openings as they pass under the spout. Thesample makes 25 revolutions per minute, and this gives 3,000 cutsper hour for about 1£ tons of ore, or one cut for every poundof ore, or 60,000 cuts per car of 30 tons. A chain drive preventsslipping so that the cuts are regular. The main part of the milled product (about 9 /10 of the whole),is here weighed (7) and thence passes to the (8) Storage Bins ofthe smelter. The sample is now removed from the (9) Sample Chamber andweighed (7) and this weight is added to that of the milled product. Plate I.—Allis-Chalmers Company, Ball Mill.


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Keywords: ., book, bookcentury1800, booksubjectmineralindustries, bookyear1895