US626818A - Grain-separator - Google Patents

Description

No. 626,8I8. Patented lune I3, I899.

J. H. STURGEON.

GRA IN SEPARATOR.

{Application filed July 26, 1898.)

(No Model.) 2 Sheets-Sheet l.

uzul'oz Patented June l3,l899.

No. 626,8l8.

-L H.8TURGEON. GRAIN SEPARATOR.

(Application filed July 26, 1898.) (No Model.) 2 Sheets$heet 2.

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UNITED STATES PATENT Orricn.

JOHN H. STURGEON, OF WINSLOW, INDIANA.

GRAIN-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 626,818, dated June 13, 1899.

Application filed July 26, 1898.

To all whom, it may concern.-

Be it known that 1, JOHN H. SrUReEoN, a citizen of the United States, residing at "Winslow, in the county of Pike and State of Indiana, have invented certain new and useful Improvements in Grain-Separators, of which the following is a specification.

This invention relates to certain new and useful improvements in separators for grain and other material, having for its object to provide apparatus whereby the separation of grain may be quickly and uniformly effected; and with this object in view the invention consists in the novel construction, combination, and arrangement of the parts hereinafter more particularly described.

In the accompanying drawings, forming a part of this specification, and in whichlike letters and numerals of reference indicate corresponding parts, Figure 1 is a side elevation of a separator embodying the invention. Fig. 2 is a vertical longitudinal sectional view thereof. Fig. 3 is a transverse sectional view of the same, and Fig. 4 is a detail view of a portion of the screen-cylinder.

Referring more particularly to the drawings, A designates the supporting frame, which may be constructed in any suitable manner, but preferably, as shown, comprises oppositely-inclined bars 1 at each end, the said bars being crossed and secured together at their crossing-points. Securing the corresponding end bars 1 together at opposite ends of the frame are a series of parallel longitudinal side bars 2, so arranged in connection -with the end bars as to form a cradle, into which is received the casing B of the separator. This casing may be formed of any suitable material or combination of materials and is disposed horizontally within the frame, with the outer faces of its walls in close contact with the inner faces of the end framebars 1 and side bars 2. In order to prevent longitudinal movement of the casing B within its frame, the bottom 3 thereof projects laterally slightly beyond its sides and is provided near opposite ends and upon opposite sides of the casing with recesses 4 for reception of the end bars 1. The casing B is loosely mounted within the cradle of the frame A in order that it may be readily removed therefrom for the purpose of cleaning, and to Serial No. 686,935. (No model.)

facilitate ready access to the interior of the said casing it is provided with a removable top 5. In its bottom the casing B is formed with two or more chutes 6, each having downwardly-converging side walls which terminate in discharge-openings 7.

Mounted to rotate within the casing out of contact with the walls thereof is a screen-cylinder 0, having a central shaft 8, the opposite ends of which are so, journaled in the end walls of the casing B as to permit the cylinder to be readily removed from and inserted into the casing. Upon the exterior of the cylinder are a series of separated parallel longi-- tudinal strips 9, from which at separated points radiate to the shaft 8 series of arms 10, which support the shaft in position. Secured to the interior faces of the strips 9 are two or more sections of wire-cloth 10 of different mesh, the cloth with the smallest mesh being arranged at the head or forward end of the screen-cylinder and the mesh of each succeeding section being a trifle larger than that of the preceding section. The longitudinal wires of each section are secured at their ends in any suitable manner to the end circumferential wires.

Heretofore it has been the common practice to employ screen-cylinders with wire cloth or gauze having rectangular openings. In the present construction, however, it is preferred to use cloth in which the openings are elon gated in the direction of the length of the cylinder, as it has been found in practice that when the openings are thus formed the grain or other material is much more effectively and uniformly separated, especially when large quantities thereof are run through the machine in a short space of time. In order to further facilitate the uniform separation of the grain, &c., the edges of adjacent sections of wire-cloth are overlapped for a short distance to bring the longitudinal wires of one section intermediate the corresponding wires of the next section, thereby forming practically a closed annular surface intermediate each two sections of the cylinder 0. These closed surfaces are arranged immediately above the meeting points of the side walls of adjacent chutes 6 and serve to prevent grain which properly belongs in one chute from dropping upon the narrow surface ICO separating the chutes and being deflected thereby into the wrong chute.

At its forward end the screen-cylinder O is provided with an interior ring 12, between the outer surface of which and the inner faces of the strips 9 the wire-cloth 10 is clamped. Surrounding the said ring and closely conforming to the contour thereof and of the 10ngitudinal strips is a binding-band 13 of metal, the said ring and binding-band serving to impart stability and rigidity to the screen-cylinder throughout its length, and being arranged at the forward end of the cylinder and only one of such rings 12 being employed the inner surface of the cylinder 0 is practically unbroken throughout its length to the rear end thereof.

Extending into the open forward end of the screen-cylinder is chute 15, leading from a hopper 16 at the front end of the casing B, and a slide-Valve 17 is employed to control the flow of grain from the hopper to the chute. The rear end of the screen-cylinder extends into close proximity to the rear end wall of the casing and through said end the refuse material within the cylinder is discharged through an opening 18 in the said end wall, said opening being preferably controlled by means of a sliding gate 19.

Any convenient means may be employed forrotating the screen-cylinder. Thus, as

shown, one end of the shaft 8 is projected beyond the end of the casing l3 and receives a It will be obvious, howcrank-handle 20.

ever, that a gear or band Wheel may be secured upon the shaft and rotation imparted thereto from any suitable source of power.

While the screen-cylinder is shown as horizontally arranged, and it is preferred to so mount it, obviously it might be inclined at any desired angle, according as varying conditions demand.

Without limiting myself to the exact construction and arrangement of the parts shown and described, what I claim is In a separator, the combination with a casing provided in its bottom with two or more chutes, of a screen-cylinder within the casing having one or more covering-sections of Wirecloth of different mesh, one section being arranged above each chute of the casing and the different sections being overlapped at their opposing edges to bring the longitudinal wires of one section intermediate the corresponding wires of the next section to form annular close-mesh sections in the plane of the partition between adjacent chutes, means for rotating the screen-cylinder and a feedhopper communicating with the interior of the cylinder, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN H. S'IURGEON.

Witnesses:

ABIJAH BEATTY, DAVID BEASLY.

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