USRE3270E - Improvement in corn-shellers - Google Patents

Description

' J. G. PUTNAM.

Corn Sheller.

Reissued Jan'y 19, 1869.

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J. G. PUTNAMfAND J. SGHIEFFELIN, JR, OF TIOGA, PENNSYLVANIA,

blowing away the hulls as the grains fall from the ma- .parts in both figures.

.itself and the cylinder anywhere remains a constant,

or of its sections, the machine will always be liable to derangement, to work badly, or to be broken whenever ASSIGNEES or J c. PUTNAM. Letters Patent No. 28,440, dated May 22, 1860; reissue lVo. 3,270, dated Janua/ry 19, 186

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The Schedule referred to in these Letters Patent and making part of the came. 7 I

feeder is a shaft furnished with two or more rows of curved-teeth B, arranged diametrically opposite each other on said shaft.

I This shaft has imparted to ita comparatively slow motion from a large tooth-wheel, O.

Above the feeding-shaft B are arranged curved elastic prongs b I), which project from and are secured to the head a, and which reach over the shaft B, and between the teeth B.

As the shaft B rotates in the direction of the arrow shown in fig. 1, the ears of corn in the hopper A, which are held against this shaft by their own gravity, are taken by the curved teeth on the shaft and drawn up under the prongs b, which keep the ears close against the teeth, and. at the same time prevent the teeth from drawing away from the hopper too many cars at one time, the prongs b also serving very efi'ectually to present the corn properly to the shelling-cylinder.

After the ears of corn leave the feeder, as just described, they are received between the shelling-cylinder D and the concave E, the acting surfaces of both of whichare furnished with teeth or ribs, resembling, in cross-section, as seen in fig. 1, ordinary saw-teeth; or any other suitably-shaped shelling-teeth may be used, if found better adapted for this purpose.

The cylinder D has its hearings in the, sides of the machine, and is rotated by the wheel 0, which engages with a pinion, O, on the cylinder-shat" The motion of this cylinderis regulated or equalized by a balance or fly-wheel, G, on the other end of the shaft, and the cylinder turns in the direction of the arrows indicated thereon'in fig. 1.

The concave E is also provided with teeth or ribs, as above stated, and, as a whole, is semi-cylindrical; but it is separated longitudinally into parts or sections, each of which is hung in slots 0, in the frame of the machine, as clearly shown in fig. 1.

These parts or sections, when more than two are used, may rest on suitable springs, if found better adapted for that purpose, and they are shown as held up or kept in working-proximity to each other at their lower ends by straight or other appropriate springs 01, which press upwards against strips e, which are secured to'the bottom of one section of the concave, and project pretty well under the other section.

The springs (7) act upwards, or against the strips e, with sufficient force to keep the sections together, and allow them to'give, or yield, and adapt themselves to the different-sized ears of corn which pass through the machine to be shelled.

The sides of each section of the concave are not supported, as has heretofore been practised, in fixed positions, or-iu ordinary journal-bearings, but are suspended or supported in the slots 0, so as to yield to pressure, and shift the points of suspension, as the needs of the machine, when in operation, may require To all whom it may concern Be it known that J G. PUTNAM, oi Tioga, in the county of Tioga, and State of Pennsylvania, has invented a new and nsefullmproved Gorn-Sheller; and we do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure 1 represents a vertical longitudinal section taken through the corn-sheller, showing the several parts employed, and their relative arrangement with each other, for shelling the coinfrom the cob, and for chine.

'Figure 2 is a top or plan view of the machine.

Similar letters of reference indicate corresponding The main feature of the improvements relates to the mode of constructing and sustaining the concave, between wh'ch and the shelling-cylinder theears of corn pass to be acted upon; and g It consists in constructing the same in sections not directly connected each to the other, and each hung independently of the other, in such manner that at any point in its whole surface, including its points of suspension or support, it is free to yield, and recede from the cylinder, under the pressure of the passing ear or cob, whilst also provided with means for restoring itself to itsnormal position. And in this respect it is distinguishable from all that class in which the concave is hinged or swings from centres or fixed points, and so absolutely precludes the enlargement when the machine is in operation, whatever may be the demands of the work, of the space between it and the cylinder at that point, for it will be observed that, however much the concave may yield at some points, yet if it be not free to yi' ld at all points, and the space between especially throughout the whole length of the concave,

a cob or other article admitted at one side of its pe-. riphery is too large to emerge at the other side.

The invention also consists in other details of construction hereinafter enumerated.

To enable those skilled in the art to fully understand the invention, we will proceed to describe its construction and operation.

In the drawings is shown a suitable stand or frame-- work for supporting the difi'erent parts of the machine.

A represents an inclined trough or hopper, from which the ears of corn are to be taken to be carried or fed down from the hopper to the concave.

This trough has a head, a, at its lower end, extending across the same, and whichallows the ears'to pass under it and be received by a rotary feeder, B, which and they are acted upon, so as to force them towards are conducted down through a channel, H. to-the point into a suitable receiver placed under the spout-H.

arranged a number of curved guards, L, over the shelling-cylinder, the lowerends of which press in annular grooves in said cylinder. These guards receive any the cylinder, by springs 9, similar to those lettered d. The concave is thus made yielding at all points; but the whole, and also each section thereof, are held against the ears with sufficient force to effect the shelling perfectly from the points to the buts of the ears, for the universal yield, so to speak, of the concave, hung and acting as above described, permits the teeth to act, and insures their acting upon all parts of the ear, and overcomes the difliculty heretofore encountered. in the effort to clean, betweentwo parallel surfaces, the kernels from cobs, which are always of varying diameter, largest usually towards their centres, and tapering at the end.

The grains or kernels of shelled corn pass out through perforations h through the bottom of the concave, and

their being carried over the cylinder.

The fan 1 is set in motion by a band which passes over a grooved pulley on the shelling-cylinder shaft.

1. A divided, yielding perforated concave bed, each section of which is disconnected from the next, and so yield and recede' from the cylinder, and also to turn upon both its longitudinal and transverse imaginary axes, substantially as'andfor the purpose set forth.

The combination of the shelling-cylinder, divided yielding perforated concave and elongated journal-slots of discharge.

While they are thus being conducted away from the machine, they receive a blast of air from fan I, and the dust-,hulls, &c., are blown out through the channel H.

The corn is thus received, free of extraneous matter,

sections, substantiallyas shown and described.

rated concave vE, feeder; B, prongs b, guard-plate J, guard L, and shelling-cylinder D,as and for the purpose herein shown and described.

J. G. PUTNAM The cobs, after the grain is removed, are discharged J .SGHIEFEELIN, J R.

over a curved guard-plate, J, but on account of the swift motion of the shelling-cylinder, they would be Witnesses :v very apt to be carried over this cylinder and delivered .13. A. WILLIAMs, again into the mouth of the machine, thus passing E. E. OLAPP.

again through the machine; and to obviate this there is cobs which may be carried up, and effectually prevent arranged in the machine as to be free at all points to c, to allow the shifting of the journals of the concave 3. The arrangement of the divided, yielding perfo-

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