US361413A - Grain-cleaner - Google Patents

Description

`(No Model.) 2 Sheets- Sheet 1.

J. M. HENDBRSHOT.

GRAIN CLEANER.

No. 361,413. Patent@ Apr. 19, 188.7.

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` J. M. HBNDERSHOT.

GRAIN CLEANER.

PatentedA 1'. 19', 1887.

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NTTED STATES `i PATENT Fries.

JAMES M. HENDERSHOT, OF ATGHISON, KANSAS.

GRAIN-CLEANER.

SPECIFICATION forming part of Letters Patent No. 361,413, dated April 19, 1887.

Application filed July 21. 1886. Serial No. 208,592. (No model.) l

Fig. 2 is a vertical longitudinal sectional view `ojfmthe same. Fig. 3 is a cross sectional view I5 0n thline .ac as of Fig. ,2.

My invj ,ion relates to machines for cleaning c'orn and ther small grain; and it consists in the pecuilar construction and combination 0f devices, "which I Shall hereinafter 2o fully describe and specifically claim.

To enable others skilled in the art to which invention appertains`,\l\wll now describe construction and indicate\the manner in ich the saine is carried out.

frame, of any suitable construction, within prising the machine are mounted.

B represents a cylinder placed horizontally 33 within the upper part of the casing and consisting of an inner screen, C, formed of small spaced iron rods extending horizontally throughout the length of the cylinder and designed to separate the cobs, silk, husks, 85e., 35 from the grain, and an outer screen, D, constructed of perforated-sheet metal, as shown in, Fig. l.

One end of the cylinder Bis fastened to the annular rim a of the spider E,vwhich is secured to the inner end of a stub-shaft, F, while the opposite end of said cylinder is riveted or otherwise fastened to a suitable flanged head, G, having an open center, b, through which the material is fed to the cylinder. The rods constituting the screen C pass through the head G and are suitably secured therein, while thescreen D is riveted to the outer rim thereof, as shown in Fig. 2. rllhe annular rim a of the spider E constitutes the 5o opposite head of the cylinder, and in conjunction with said screens and flange completes the said cylinder.

` n the said drawings, A represents-@Casingwhich the several operative mechanisms com Mounted in brackets c on the frame A are small rollers H, upon the peripheries of which the open center b of thehead G rests, whereby said head, and consequently one end of the cylinder B, is supported.

The conveyer I is of any well-known construction and is mounted within the casing immediately below the cylinder, whereby the 6o grain from said cylinder is carried forward by said conveyer and discharged in a sheet through the opening h into a trunk, K, extending throughout the length of the casing.

The shaft L of the conveyer carries at one end a pulley, d, by which power is communicated to the machine, and to the opposite end is secured a sprocket-wheel, e, which, through the medium of a belt, f, imparts motion to the sprocket-wheel g on the stub-shaft F and ro- 7o tates the cylinder. The opening h, formed in the casing of the conveyer coincident with a similar opening in the trunk K, is controlled by a slide, k, operated by screws Z, the outer ends of which terminate in crank-handles, whereby the screws are operated to adj ust the slide 7c, and thus regulate the size of the opening It, and consequently the discharge ofthe grain. By having the slide 7c extend nearly or quite 8o the full length of the trunk K it is evident that said slide may be adjusted to cause the grain to be discharged in a thin sheet, in order that it may be operated upon by a current of air to cause the chaff and other light foreign S5 substances to be separated from the grain, as I shall now describe.

At one side the main casing is extended to form asupplemental casing, A', havingan airtrunk, P, the lower end of which is in corn- 9o munication with the trunk K, while in the upper' portion of said casing A a suctionfan,

M, is suitably mounted on the shaft N to cause an upward current of air, which, coming in contact with the falling body of grain in trunk K, readily separates from said grain all chaff and similar substance and carries the same upward into trunk P, from whence it is discharged through the outlet-pipe O, as shown in Fig. 3. i.

From the description of these several features it is obvious that small grainsuch as cornmay be removed from the sheller and placed in the cylinder, where it is separated from IOO the pieces of cob, silk, Src., and is nally discharged through the trunk K ina thoroughlycleansed condition. The cobs and husks that are too large to pass between the rods of the 5 inner screen pass .along the length of said screen and are discharged through or between the supporting-arms of the spider and fall into a spout or chute, B', (shown in dotted lines, Fig. 1,) said chute passing downward and hav- [0 ing the outlet at the sill of the cleaner, from whence the material is conducted by any suitable means to the outside of the building, or at whatever point such refuse material is deposited. The two screens B and C being of 15 the same length, it will be observed that such huslis, Src., as pass through the inner screen are caught by the outer one and discharged into the chute, as before described.

Having thus described my invention, what 2o I claim as new, and desire to secure by Let- 1. The frame, the cylinder B, composed of consecutive screens C and D, the casing having a discharge-opening, h, the conveyer l, the

slide k, and the screws Z for adjusting the slide, 25

in combination with means for rotating said conveyer and cylinder, the underlying airtrunk P, and the suction-fan M, substantially as herein described.

2. A grain-cleaner comprising a main and 3o a supplemental frame or casing, a cylinder comprising an inner and outer screen, a conveyer, an elongated trunk, K, an adjustable slide for discharging the grain in a thin sheet into said trunk, an air-trunk in communica- 35

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