US716408A - Corn-planter. - Google Patents

Description

No. 7l6,408. Patented Dec. 23, I902; W. S. GRAHAM.

CORN PLANTER; (Appiication filed Oct. 18, 1902.

(No Model.)

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WILLIAM S. GRAHAM, OF CANTON, ILLINOIS, ASSIGNOR TO PARLIN AND ORENDORFF COMPANY, OF CANTON, ILLINOIS, A CORPORATION OF ILLINOIS.

SPECIFICATION formingpart of Letters Patent No. 716,408, dated December 23, 02- Application filed October 18, 1902. Serial NO 1 (N0 model!)- To all whom it may concern.-

Be it known that 1, WILLIAM S. GRAHAM, of the city of Canton, county of Fulton, and State of Illinois, have invented certain new and useful Improvementsin Corn-Planters, of which the following is a specification.

This invention provides means for moving grains of corn horizon tally toward the cells of aseed-wheel and for u ptilting the grains edgewise into the cells.

The invention is exemplified in the struc ture hereinafter described, and it is defined in the appended claims.

In the drawings forming part of this specification, Figure 1 is a plan of a seedbox provided with my improvements. Fig. 2 is a plan of the seed-wheel. Fig. 3 is a plan of the under side of the feeder-disk. Fig. 4 is a diagram showing fragments of the seed wheel and the feeder-disk and illustrating a modification of the embodiment of my invention shown in the other figures of the drawings. In Fig. 4 the feeder-disk is shown in horizontal section to expose the walls against which the extensions onthe seed-wheel act while rocking the disk back and forth on the seed-wheel.

The ring of the casting to which the seedbox is attached is shown at 1, a cut-off housing is shown at 2, and a cut-off is shown at 3. The cut-off housing has in this instance a lug through which a vertical pivot-pin 4 extends. A feeder-disk 5 is pivoted near its perimeter on pivot 4. Its perimeter is beveled, and it rests on the seed-wheel 6. The seed-wheel has a set of seed-cells disposed in a circle concentric with the center of the wheel, and it also has a pin 8 projecting. upward from the wheel to one side of the center thereof. The feeder-disk 5 has an elongated recess 7 in its under surface, the walls of which provide bearing-surfaces for the pin 8 of the seedwheel and enable the seed-wheel to swing the disk or plate back and forth on pivot-pin at.

As the seed-wheel rotates the pin 8 strikes the walls of recess 7 alternately and moves the plate from side to side of the seedbox, with the result that the grains of corn are forced over the seed-cells and tilted thereinto.

In the modification shown in Fig. 4 there are three extensions on the seed-wheel, as shown at 8, and these act successively on opposite sides of the oblong recess 7. This arrangement gives three oscillations of the feeder-plate for each rotation of the seedwheel and insures feeding action of the plate on all the cells of the wheel.

The feeder-plate has a horizontal motion to and from the cells and the barrier-wall on the opposite side thereof, and it effectively forces the grains over the cells and tilts them edgewise into the cells.

The lug 4 is merely suggestive of means for providing an eccentric pivot for the feederplate, and it is obvious that such pivot may be provided in various ways.

The seed-wheel may be rotated in any desired manner, and the size, shape, and proportion of the various parts may be varied without departing from the principle of my invention.

The essential characteristic of this invention is the oscillation of a feeder-plate on the seedwvheel, so that the feeding part of the plate will alternately approach and recede from the cells, and it is obvious that the oscillation may be accomplished in various ways.

I claim- 1. In dropping mechanism for corn'planters, the combination of a seed-Wheel having cells disposed in a circle, a feeder-plate pivoted eccentric of the circle of cells, and means for oscillating the feeder-plate on its pivot.

2. In dropping mechanism for corn-planters, the combination of a seed-wheel having cells disposed in a circle, a feeder-plate pivoted off its own center and off the center of the circle of cells and means for oscillating the feeder-plate 011 its pivot.

3. In dropping mechanism for corn-planters, the combination of a seed-wheel having cells disposed in a circle, a feeder-plate pivoted eccentric of the circle of cells, an extension on the seed disk off the center thereof and a wall in the feeder-plate against which the extension on the seed-wheel strikes to swing the feeder-plate on its pivot.

4. In dropping mechanism for corn-planplate back and forth as the seed-Wheel r0- ters, the combination of a seed-Wheel having tates. to cells disposed in a circle, a feeder-plate piv- In testimony whereof I sign my name in the oted eccentric of the circle of cells, an eXtenpresence of two subscribing witnesses.

sion on the seed-Wheel off the center thereof, WM. S. GRAHAM.

and a pair of opposed Walls in the feeder- Witnesses:

plate against which the extension on the seed- CHARLES HOBART HEALD,

Wheel strikes alternately to swing the feederi R. E. KENNY.

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