US471322A - Clay-separator - Google Patents

Description

(No Model.) C' A WYMAN.

CLAY SBPABATOR.

Patented Mar. 22,' 1892.

l L um CwrZeJ \A, I /NvfA/Tol?, *u w y Ninn TATES CHARLES A. VYMAN, OF HUTCHINSON, MINNESOTA.

CLAY-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 471,322, dated March 22, 1892.

Application tiled November 9. 1891. Serial No. 411,319. (No model.)

To all whom ty may concern:

Be it known that I, CHARLES A. WYMAN, a citizen of the United States, residing at Hutchinson, in the county of McLeod and State of Minnesota, have invented certain new and useful Improvements in Clay-Separators, of which the following is'a specification.

There is a large class of clays throughout the United States and foreign countries that would be well suited for brick, tile, and pottery making if the stone and gravel could be cheaply and quickly removed or the clay separated from that which renders it useless in its natural state.

The present invention relates to a machine for effecting the separation of the detrimental substances from the clay; and it consists in various features, details, and combinations hereinafter set forth and claimed.

ln the drawings, Figure l is a vertical longitudinal sectional view of my machine in its preferred form; Fig. 2, a vertical transverse sectional view on the line 2 2 of Fig. l, and Fig. 3 a rear end view.

A indicates a tank or vat provided with an overflow a and also with a curved bottom b. At opposite ends of the tank are bearingscc, in which is j ournaled a shaft B, carrying at one end a band-wheel cl, the said shaft being arranged in a slightly-inclined position, as clearly shown in Fig. l.

Secured to the shaft B are spiders e, which carry the heads or ends C and C of the rotary screens D and E. The head C is cut away at the center to permit the shaft to project therethrough and also to receive the discharge end of the hopper F, which is held stationary by being attached to the tank. Head C is provided with a corresponding central opening, through which the lower end of the shaft projects and through which the gravel or stones are ultimately discharged into a third screen or cylinder G, which is secured to the head C and turns or rotates therewith. The screens D and E are preferably cylindrical in cross-section, as shown in Fig. 2, the screen D beingof smaller diameter than screen E and placed within the latter, as shown in Figs. l and 2, so as to form an annular space or chamber H. At its lower end the screen D (which is of coarser material than the screen E) is provided with one or more 'Secured within the central opening in the v head C are inclined chutes K, (one or more,) which are arranged directly opposite the openings I and wings J, as shown in Figs. l and 2. The lower ends of these chutes K proj ectinto the third and smaller cylinder G, whose discharge end, as shown in Fig. 1, projects beyond or over the end of the tank or vat.

Mounted loosely upon the shaft B within the cylinder D is a rake or breaker L, which is so arranged as to break up the lumps of clay as the cylinders or screens rotate, the weight of the rake being sufficient to hold it in its normal Working position.

M indicates a water-supply pipe provided with two branches, one f serving to deliver water into the hopper, while the other g discharges 4water onto the delivery screen or cylinder Gand the contained material. The water flowing into the hopper serves to soften and break up the lumps or clods before they enter the cylinder D, while aiding in keeping the hopper open and facilitating the feeding operation. The water discharged onto. the cylinder G gives to the contained material a final washing and iiows thence into the tank or vat A. The pipe M serves to keep the tank or vat A filled to the proper level, thereby insuring the thorough wetting or washing of theY matters in the screens or cylinders, which latter, by the way, are partially immersed in the water in the tank.

Secured to the outer face of the double screen D E or the heads C C are one or more blades or wings N, which extend lengthwise of the cylinder from end to end. These blades or wings work close to the covered bottom of the tank or vat and keep the matters heldin suspension by the water constantly stirred up and agitated, so that they will pass off over the spout a from time to time. Now as the material is fed into the hopper F it finds its way into the interior of cylinder D, which is immersed in the water of tank A. This softening of the clay, together with the action of the breaker or rake L, serves to loosen the gravel, .which latter when they are too large IOO to pass through the meshes of the screen l) iind their way toward the lower end of the latter and pass through the lowcrmost opening I in the screen D onto the inner surface of the screen E. As the cylinders or screens turn oi rotate together, the materialavhich passes through the opening I, as just men tioued, will be caught by the blade or wing J and lifted up, and when the parts reach the position shown in the drawings the gravel will fall from the blade or wing back through the opening and onto or into the inclined chute K, which is then directly beneath the opening I. From this chute the material is discharged into the cylinder G, where it is given a final washing preparatory to being tailed olf over the end of the said screen G.

In the drawings I have shown two openin gs I, with the corresponding wings .I and chutes K, one set receiving while the other set is discharging the gravel; but I do not wish to be understood as limiting myself to any specilic number. The finer gravel which passes through the meshes of the screen D also, by reason of the inclination of the screen E, finds its way to the lower end of the latter, where it is caught by the wing' or blade J and lifted up and discharged in the same manner as the coa-rser gravel. The clayey material finds its way through the meshes of the screens and passes into the tank or vat, from which it passes oit with the water.

hile the machine is designed primarily for the separation of the gravel from the clayey substances, it is obviously capable of effecting the separation of other materials. IVater will injuriously a'tect some materials, and when the machine is used for the separation of these the water will be shut ot't' and the :liner material discharged into the receptacle A and removed therefrom by any snitable means.

I'Iaving thus described my invention, what I claim isl. In combination with the screen D, having an opening I, a screen E outside of screen D, a blade or wing J, arranged between the screens D and E opposite the said opening, and a chute K, also opposite the opening I and adapted to receive the material carried up by the blade or wing, all ol' said parts rotating in unison, substantially as shown and described.

2. In combination with the screens D and E, and the interposed wing J, adapted to lift up the material passing through an opening I in the screen D, a third screen G, and the chute K, arranged opposite the opening I and extending from the interior of screen D into the screen G, all substantially as shown and described.

In combination with vat or tank A, the rotary screens D E, the fixed hopper F, the tailing-screen G, rotating with the screens D E, and the water-supply pipe M, having the branchesf and g to deliver into the hopper F and screen G, respectively.

Li. In combination with the heads C C', each having a central opening, the screens D and E, secured to the heads and the former provided with o1 @nin gs I at its lower end, blades or wings J, arranged inthe space between the cylinders or screens opposite the said openings I, a screen G, arranged about the open ing in the head C, the chutes K, rotating with the cylinders and extending from opposite the openings I in screen D into the screen G, a fixed hopper F, projecting through the head C, a receptacle to receive the finer 1naterial discharged from the screens, a shaft on which the screens or cylinders are supported, and means for imparting motion to the shaft and screens.

The combination, with tank A, of screens D and E, shaft B, supporting the same, and a rake L, mounted upon said shaft.

In witness whereof Ihereunto set my hand in the presence of two witnesses.

CHARLES A. IVYMAN.

Witnesses: i

L. L. DAY, R. C. DWINNELL.

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