US448941A - Davidson - Google Patents

Description

(No Model.)

'0. E. DAVIDSON. CORN SHELLER.

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3 Sheets-Sheet 2.

@i; 6 g 325 ablio'o'nci o Patented Mar. 24, 1891. 2%

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- 0. E. DAVIDSON.

CORN SHELLER.

No. 448,941. Patented Mar. '24, 1891.

ma 511W! r UNITED STATES OTIS E. DAVIDSON, OF NASHVILLE, TENNESSEE, ASSIGNOR TO MATTIE VERMONT DAVIDSON, OF SAME PLACE.

CORN-SHELLER.

SPECIFICATION forming part of Letters Patent No. 448,941, dated March 24, 1891.

Application filed June 24, 1890. Serial No. 856,569. (No model.) v

To all whom it may concern.-

Be it known that I, OTIS E. DAVIDSON, of Nashville, in the county of Davidson and State of Tennessee, have invented certain new and useful Improvements in Corn-Shellers; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the letters of reference marked thereon.

This invention has for its obj ect't-o improve the construction and operation of corn-shellers; and it consists in certain novel details of construction and combinations of parts, which will be first described, and then pointed out particularly in the clauses of the claim at the end of this specification.

Referring to the accompanying drawings, Figure 1 represents a front elevation of my improved corn-sheller with one pair of shelling-jaws partially in section. Fig. 2 1s a sido elevation of the same. view taken on the line a". 00, Fig. 1. Fig. 4 is an elevation of one of the shelling-jaws. Fig. 5 isa rear elevation of the machine, and Fig. 0 is a sectional view taken on the line y y, Fig. 1.-

Similar letters of reference in the several figures indicate the same parts.

The letter A represents the main frame, or what I prefer to term the base-plate, of the machine, the same having openings 13 B through which to pass the bolts wh ch are to secure it to the box or other support upon which it is designed to mount the machine.

0 C are pinions mounted upon the baseplate A and in mesh with each other, one of them being driven by a bevel-gear below the base-plate and in gear with a pinion F, mounted so as to turn freely upon'an axial bolt F, screwed into a flange A, )rojecting from the base-plate A. The pinion F is provided with a crank or handle F for turningit.

The construction of the pinions C will be better understood by reference to Figs. 2 and Each of them has an open center and an annular flange E, which projects part way through an opening A. in the base-plate A, where it is bolted or otherwise secured to a flange or flanges D on a ring D or the gear Fig. 3 is a sectional C projecting int-o said opening in plate A from the opposite side, the connection between the pinion C and ring D or gear (I being such as to enable said parts to freely rotate together in the opening of the base-plate whenever the driving-pinion F is turned. The front or outer port-ion of each of the pinions 0 is provided with lugs G, and to each of these lugs is hinged, by means of a pin I, the shank H of one of the shelling-jaws K. The jaws K K of each pinion are adapted to operate upon a single ear of corn, and as there are two pinions and consequently two pairs of jaws, two earsof corn can be simultaneously shelled by the operation of the single driving-gear F.

As will be seen by reference to Figs. 1, 2, and 4, and particularly to Fig. 4, each of the jaws is provided with one or more, preferably two, projecting shelling-ribs L, a flange K extending outwardly beyond said ribs L, and with the internal spirally-arranged feeding-ribs M, and when the two jaws are brought into juxtaposition, as shown in Fig. 1, and an ear of corn is inserted between the jaws,while at the same time rotary mot-ion is given to the pinions, the ribs L will operate to strip off or shell the corn'from the cob, and the flange K will prevent the flying off of the shelled corn laterally, while the ribs M will operate to draw inward and gradually feed along the cob while the shelling operation is in progress.

In order that the jaws mayaccommodate themselves to various sizes of ears and that they may grasp'the ears with the requisite degree of pressure, I cause each of them to be acted upon by a spring 0, coiled about the pin I, and having its inner end abutted against the bracket I on the flange K and its outer or free end abutted against a stud or projection P on the lugs G, as shown in Figs. 1 and 6.

In order that the ear being acted upon by each pair of shelling-jaws may be properly guided and steadied, I provide at the back of the base-plate A and behind each pair of said jaws a pair of co-operating spring-pressed roller-jaws, as shown in Fig. 5. Each of said roller-jaws consists of a corrugated or flanged roller Q, mounted so as to turn freely in a supporting-arm R, and its ribs or corrugations are made of smallest diameter at the middle so that they will operate to center and hold centered the cob and also prevent it from rotating while passing through the shelli n gj aws.

On the inner end of the supporting-arm R is form ed a bearing B, through which a pivotbolt passes, said pivot-bolt being secured in the base-plate in any preferred manner.

The roller-jaws are kept closed with yielding pressure by means of springs S, each of which is adapted to operate upon one roller of each pair by engaging with the supporting-arms which support said roller, as shown in Figs. 5 and 6, its opposite end being held by a pin or projection on the base-plate.

From the foregoing description it is thought the operation of the machine will be readily understood. The operator with one hand turns the crank or handle F thereby causing pinions G and the shelling-jaws connected to each to be put into rotation. Then with his other hand he introduces under moderate pressure ears of corn into the two pairs of jaws K, which jaws act, as before described, to strip otf the corn by means of ribs L, and to automatically advance the cobs by the action of the spiral feeding-ribs M and force the forward end of the cobs between the roller-jaws Q, which then operate to steady the cobs and keep them properly centered without rotating. Each cob remains clasped by the roller-jaws Q until it is dislodged by the advance of the next succeeding cob. It will be observed that the lower feedingrib is not so wide as the upper one, so as to leave a larger opening between the lower ribs, the idea being to enable the cob to be more easily started in between the jaws, as the operator only has to overcome the resistance of two ribs until the roller-jaws eomein contact with the cob, when all the ribs be come efiective and feed the cob through rapidly, t-he ribs meanwhile stripping oil every grain of corn as they rotate around the cob.

I claim as my invention- 1. The combination, with the base-plate A,

of the two gears C, meshed together, as described, and each bearing a pair of co-operating shelling-jaws, and the pinion F for imparting rotation to said gears O, substantially as described.

2. The combination of the base-plate A, the gears O O, meshed together, as described, and each having a flange projecting part way through the base-plate A, with the ring I), having the flange secured to the flange of one of the gears O, and the driving-gear]? and its crank or handle, substantially as described.

The combination of the base-plate A, the gears C O, meshed together, as described, and each having a flange projecting part way through the base-plate A, with the ring D, having the flange secured to the flange of one of the gears (J, the bevel-gear, with the flange secured to the other wheel 0, and the drivinggear F and its crank or handle, substantially as described.

4. In a corn-sheller, the combination, with the rotating gears (J, of the co-operatin g hinged shelling-jaws mounted thereupon, each having the feeding-ribs M, the curbed flange K, formed integral therewith to prevent the corn from flying out laterally, and the strippingribs L, formed on the inner surface of the flange K, substantially as described.

5. The combination,with the meshed gears C, each having a pair of hinged shelling-jaws mounted upon and rotating with it,and each jaw being provided with stripping-ribs L, of the spiral feeding-ribs M, substantially as described.

6. The combination, with the two meshed gears (l, each having a pair of hinged shelling-jaws mounted upon and rotating with it, and each jaw being provided with strippingribs L, of two spiral feedingribs M, the lower rib being narrower than the upper one, substantially as described.

OTIS E. DAVIDSON.

Witnesses:

HENRY CATO, T. J. TODD.

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