. The Americana : a universal reference library, comprising the arts and sciences, literature, history, biography, geography, commerce, etc. of the world . waste product in the manufacture ofarticles from clay may be traced directly tonegligence in the proper treatment of the clayprior to its use in the molding machines. Amongthe principal machines of this class are the Fig. 1, bevel-geared clay granulator andfeeder, designed to work on a horizontal plane,and reduce lumpy clay into a mass of uniformtexture before it is fed into the molding ma-chines. It consists of a tub the sides of whichmay
. The Americana : a universal reference library, comprising the arts and sciences, literature, history, biography, geography, commerce, etc. of the world . waste product in the manufacture ofarticles from clay may be traced directly tonegligence in the proper treatment of the clayprior to its use in the molding machines. Amongthe principal machines of this class are the Fig. 1, bevel-geared clay granulator andfeeder, designed to work on a horizontal plane,and reduce lumpy clay into a mass of uniformtexture before it is fed into the molding ma-chines. It consists of a tub the sides of whichmay be made either flared or vertical, withinwhich is rotated a main shaft nine inches indiameter, carrying 40 forged-steel knives. Thedriving and counter pinions are of steel, and allgears are journaled in an iron frame bolted to12 x 12-inch hardwood timbers. The friction-clutch pulley is 40 inches in diameter, with CLAY-WORKING MACHINERY u-inch face, and the length of frame 19 feet, with a width of 5 feet 6 inches. Height from bottom frame to top of flared hopper, 3 It weighs about 14,000 pounds, and granu- clay that may be dumped into it by the car-. Fic. 1.—Bevel-geared Clay Granulator and Feeder. load, and in lumps as dug out by a object of the double shaft construction maybe illustrated in the case of bricks made from amixture of two kinds of clay — one very strongand the other very weak. The strong clay isdumped by the cartload into one tub, and theweak clay into the other, without regard toproportion. The knives and bars of the pug-shaft are each given a relative set representingthe proportions desired, and as both shafts makethe same number of revolutions per minute, themill discharges into a common receptacle agranulated mass of material made up of eachkind of clay in exact proportions. The knivesbeing made of carefully tempered steel of greatstrength, will shave the large lumps of clay,clean it from stones, and feed uniformly anydesired quantity. The
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectencyclo, bookyear1903
