US282300A - Sifting apparatus - Google Patents

Description

( No Model.)

E. FUCHS.

SIPTING APPARATUS. No. 282,300. 7 Patented July 31. 1888.

T l HI/S, M.

o 2'' P 0 T z I m a f 5 4 L N. PETERS. Phcko-Lxlhcgraphen Washingmn. D. c.

I 1 and combinations of devices hereinafter, de

resents a vertical section of my machine; Fig, i 2, a front elevation, Fig. 4 a sectional plan,

x rection, as shown in Fig. 1.

a pipe a dischargeopening is formed, with ratus for separating the several qualities of l i ing the difi'erent grades of fineness of other a I5 produce a machine that is simple, effective,

t and reliable in operation.

UNITED STATES PAT NT OF ICE.

ERNST FUCHS, on CHICAGO, ILLINOIS.

SIFTING APPARATUS.

SPECIFICATION formingpart of Letters Patent N0.

282,300, dated July 31, 1883.

Application filed December 2. 1882. (N0 modcll) fiour and middlings from the bran, or for sortpulverized materials; and it is my object to My invention consists of the novel devices scribed and specificallyclaimed. I In the accompanying drawings, Figure 1 rep Fig. 5 a rear elevation, of the same; and Fig. 3 is a detached sectional view of the riddlearm. I

The same letters in theseveralfigiu-es of the drawings designate the same or corresponding A, B, and 0 denote three sifter-frames, the upper one, A, being covered with a brass-wire screen, the next one, B, with a coarser quality of bolting-cloth, and the-lower one, C, with fine gauze. All three sifter -frames are secured within a common frame, D, and each sifter represents in shapea hexagon funnel, the bottom spouts of which are formed of pipes a, b, and c, of different diameters, which are projected one through the other in such a manner that the pipe 0 of the sifter, O is the largest, pipea of the sifter A the smallest, and pipeb of sifter B of the intermediate size, a sufficient ring-like openingbeing provided between each two pipes for the flour and middlings to pass through. The pipes 12 and a are cut off diagonally at their bottom ends, which are closed. At one side of the lowest extremity of each which a small discharge-spout, m or n, is connected, said spouts emptying in opposite di- E is the box-frame of the machine, in which thesifter-frame D is suspended by a series of springs, F, in a manner to be held steady therein and to allow a vertical vibration of v the sifters. Upon this sifter-frame Dissecured a distributingrcone, G, and over this again a conical cover, H, which is open on topfor the spout I to discharge the meal upon cone G, over which the meal will spread out and be conducted and distributed near the periphery of sifter A.

J is the main shaft, and K the driving pulley, next to Whichis rigidly mounted upon such shaft the cam-wheel L,

I M is the riddle-shaft, that has an arm, N, which rides upon'the cam-wheel and is vibrated bythe teeth thereof. Two arms, 0,

mounted upon the central portion of shaft M, i

are pivotally connected at their ends to pipe 0 in such a manner that the vibration of arm N is transmitted to the sifters, so as to impart to them a quick andshort vertical reciprocat ing movement. The arm N, I construct in such a manner. that its length can be varied, and thereby the distance of reciprocation of the sifters reduced or increased. This I accoinplish by forming the arm N, that is se- Meal being fed through spout I upon cone G-will spread out as it slides down on said cone and be discharged in a thin sheet upon the periphery of sifter A, which will allow the middlings and flour to pass through its meshes, but not the bran, which will be discharged through pipe (1. The material that passes through sifter A will drop upon sifter B, which will separate the coarser middlings and discharge them through pipe 6, and sifter C will separate the fine middlings and discharge them through pipe 0, while the fine flour that passes the meshes of sifter G will drop into hoppers 1?. These hoppers P are provided in their bottom with conveyer-screws Q, each of which has a pulley, R, mounted upon its projecting shaft, to be driven by a belt from pulleys S of main shaft J. These convey'er screws dis- IOO charge the flour into spouts T. The quick vertical vibration of the sifters will not only assist the quicker discharge of the bran and middlings, from the sifters and through the spouts, but it will also prevent the meshesof the sifters being clogged or filled up.

This machine or apparatus is very compact in its arrangement, reliable in its operation, and simple and durable in its construction.

What I claim is- 1. In a sifting apparatus, the combination of the funnelshaped sifters A B 0, having meshes of different degrees of fineness, inclosing-framc D, frame E, springs F for suspending said sifters to said frame E, and the pipes a b c, forming the bottom spouts of said sifters, the Whole being constructed and arranged substantially as and for the purpose shown and described.

2. In a sifting apparatus, the combination ofthe funnel=shaped sifters A, B, and 0, dischargepipes a b 0, frame D, main frame E, springs F, vibrating shaft M, having arms 0,

connected to pipes 0, arm}, cam L, and shaft J, all substantially as described, to operate as specified.

3. In a sifting apparatus, the rotating cam L, in combination with the riddle, the riddleshaft M, socketed arm N, extension-bar n, and set-screw 0, substantially as and for the purpose set forth.

4:. In a sifting-machine, the funnel-shaped sifters A, B, and O, a frame, 1), the distributing-cone G, supported thereon, conical cap H, frame E, springs F, and the spouts or pipes a b c, in combination with main shaft J, cam L, riddle-shaft M, arms 0 and N, and bar or, the whole being constructed and arranged to operate substantially as set forth.

I11 testimony that I claim the foregoing as my invention I affix my signature in presence of

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