USRE7527E - Improvement in corn-planters - Google Patents

Description

D. W. JACOB'Y.. Assignor to J. A CHESNUT and A. MGKIM DUBOIS.

CORN-PLANTER.

lReissuea Fveb. zo, 1877..

'UNITED STATES PATENT OFFICE.

D. JAOOBY, OF SHELBYVILLE, ASSGNOR TO JOHN A. OHESNUT, OF SPRINGFIELD, AND A. MCKIM DUBOIS, OF CARLINVILLE, ILLINOIS.

IMPROVEMENT IN COlNr-PLANTEITtS.

Specification forming part of Letters Patent No. 68,443, dated September 3, 1867; reissue No. 7,527, dated February 20, 1877; application filed November 4, 1876.

To all whom it may concern:

Be it known that I, D. Shelbyville, in the county of Shelby and State of Illinois, have invented a new and useful Improvement in Corn-Planters, of which the following is a specification:

The subject of this improvement is the mechanism for dropping the grains of corn; and my invention consists in the use of a cutoff which is so formed that it will yield to the grains drawn under it by the slide from either direction, and ride over the grains without shearing' them; and, also, in the device for regulating the sizeof the openings in the dropper-plate, and in the device for regulating' the elasticity or tension of the spring cut-of.

The precise character of these devices will be illustrated and defined in the following description and claims.

In the annexed drawings, this specification,

W. JAGOBY, of

making part of Figure I is a plan view of the hopper, showing the cut-off and hole in the dropper. Fig. II is a vertical section of the same; and Fig. III is a perspective view of the dropper-plate, showing the device for regulating the size of the opening.

The same letters are employed in all the figures in the indication of identical parts.

My invention is applicable to any cornplanter. Ihave illustrated it as applied to an ordinary double check-row planter, in which the dropping apparatus is actuated by the alternate action of a hand-lever, bringing a hole in the dropper-plate into register with the opening through the bottom of the hopper with each single movement of the lever.

A is the hopper or seed-boX, having an opening at A', through which the grains fall into the furrow. B is a cut-off' plate in the bottom of the hopper, having an opening for the passage of the grain from the hopper to the dropper-plato, which is immediately under the plate B, and to receive the cut-off U. The slot in the cut-off plate B is not continuous, but is formed on each side of the cross-bar B', over which the cut-off O extends, as clearly shown-in Fig. 2. Each end of the cut-oli' rests on the dropper-plate F. A bolt, D, is

extended upward through the cross-bar B', and passes through the middle of the cut-off O. A nut, D', is screwed down on an. indiarubber spring, E, and washer above the cut-off, so that the elasticity or tension of the spring may be increased or diminished, as may be desired. Rollers O' O' are placed in the ends of the cutoff, and are intended to run over the grains ot' corn in the holes of the dropperplate F.

The cut-off performs the ordinary function oflimiting the number of seeds falling through the dropper at each movement; and in order that grains projecting above the surface of the dropper-plates may not be sheared oi' or crushed, the cut-olf, oscillating' or rising on the bolt D, will rise at the end, rising over such grains as the-spring E will allow, and the play between the bolt and the hole through the cut-oli1 permits. When the grains fall through the hole A', the spring E will bring back the cut-oft' to rest on the pla-te F.

Should the grain .not fall out of the holes in the dropper-plate they will lift the yother end of the cutoff', or sustain the cut-oft' without being injured.

F is the dropper-plate. It receives a toand-fro motion from each movement of the hand-lever, and has two openings at F' F', for feeding the grains from the hopper to the hole at A'.

'Io regulate the size of these holes, and thus control the number of grains fed to each hill, a plate, G, in form a semicircle, is set in a corresponding slot in the dropper-plate. Segmental recesses are formed in G. as shown, in positions corresponding to the holes F' F'.

By moving the plat-e G, the size of these holes may be regulated.

A thumb-nut, G', holds the plate G when properly adjusted.

What I claim as my invention', and desire to secure by Letters Patent, is-

l. In combination with the oscillating dropper-plate F, a cut-off, C, having rollers G' at each end, bearing on the hopper-plate, to regulate the passage of' seeds from the hopper to the hole A, substantially as set forth.

2. The semicircular plate G, for regulating the disahargeorees Ff; substantially' as,` set' forth.-

3. Acut-o', bearing at both ends in cutting of grains in the dropperplate, in combina-f tion with a centrally-placed Spring, bearing with adjustable tension" againstthe` cut-often that there shall be an equal and adjustable pressure on each end ofthe et-off applied t' grains coming under the cutoff from either side. substantially as setforth.

4. The combination of the centrally-supported and arched cut-01T C and spring E With-V Y `a cut-oli' plate having openings adjacent to either end of the cut-oft', substantial as Aset forth.

5. A. @umu Ipiatti hatigvefucai nearing against a Aspring and centrally-supported in such manner that it may yield vertically, or

Arecede' at either end, or uniformly along its entire length7 substantially as set forth.

InY testim'ony whereof I have hereunto set my name in presence of two subscribing wit- 's".

Y D. W. JAooBY.

Signed in our presence:

H.- S. MOUSER, M. G. BAKER.

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