US437373A - kirkpatrick - Google Patents

Description

(No Model.)

W. L. AGKER & G. W. KIRKPATRICK.

GRAIN DRILL.

" UNITED STATES.

PATENT OFFICE.

WASHINGTON L. ACKER AND GEORGE W. KIRKPATRICK, OF MAOEDON, NEW YORK, ASSIGNORS TO HELEN M. KIRKPATRICK, OF SAME PLACE.

DRILL.

SPECIFICATION forming part of Letters Patent No. 437,373, dated September 30, 1890.

Application filed June 3, 1890. Serial No. 354,108. (No model.)

To all whom it may concern.-

Be it known that we,WAsHINGToN L. AoKER and GEORGE W. KIRKPATRICK, of Macedon, in the county of Wayne and State of New York, have invented certain Improvements in Grain-Drills, of which the following is a specification.

Our invention relates to a runner or hoe for a grain-drill provided with a'wheel-follower and drag-chain; and it consists in various details of construction, which will be hereinafter described and pointed out.

In the accompanying drawings, Figure 1 is a perspective view of our improved hoe. Fig. 2 is a vertical cross-section through the follower-wheel and its supports on the line 2 2 of Fig. 1. Fig. 3 is a vertical cross-section through the wheel-carrying arm on the line 3 3 of Fig. 1, showing the manner in which the depressing-spring is connected therewith. Fig. 4 is a view of the hoe provided with a drag-chain.

Referring to the drawings, A represents a vertical tube or seed-conductor connected at its lower end to the rear extremity of the furrow-opening runner b. At its upper end the tube has a forwardly-proj ecting car a inserted between and connected by a crossbolt to two longitudinal bars 0 C, the forward ends of which are separated and which constitute jointly a drag-bar. The forward ends of the drag-bar are connected by stirrup-bolts D to the cross-bar E, forming part of the main frame. From these eyebolts two converging arms F are extended downward and bolted to a barf, which is in turn fixed to the forward end of the runner.

The foregoing parts constitute jointly what is commonly known as a runner-hoe, and they are not claimed as of the present invention. They may be constructed in any form the mechanical equivalent of that herein shown.

In carrying our invention into effect we pivot between the two parts of the drag-bar O a bar G, which is extended thence downward and rearward, this rear end, which is forward of the tube A, being inserted between and bolted firmly to two bars H, which are carried rearward past opposite sides of the hoe, where they receive between them the follower-wheel I.

The bars or arms H are formed at their rear ends with inward] y-proj ectin g bosses h,'which enter the hub of the wheel and serve as journals therefor. As shown in Fig. 2, these bosses are adapted to meet within the hub, the end of one being adapted to project into the other, as shown, whereby they are pre- Vented from shifting out of line and thus caused to carry the wheel in an upright position.

The arms are drawn together by means of a through-bolt J The fact that the bosses abut against each other is of advantage in this connection, since they prevent the arms from being drawn together in such manner as to bind against the outer ends of the hub.

Each of the arms is also formed with a flange or cap h, overlying the adjacent end of the hub, whereby the entrance of sand or other obstructive matters to the wearing-surfaces is prevented.

The sides of the conductor-tube are provided with vertical ribs 00, which bear against the inner faces of the arms H, thus preventing the latter from shifting laterally and causing the wheel to travel directly over the furrow.

The depression of the wheel and its carrying-arms is effected by means of a spiral spring K, encircling a rod L, which latter is arranged to slide at its upper end through an car a cast on the rear side of the tube, and connected at its lower end to the wheel-carrying arms by a cross-bolt- Z. The arms are provided with inwardly-extending ears h as shown in Fig. 3, which bear against opposite sides of *the rod L and keep it in a central position between the arms. 0

It will be observed that the wheel connected to the runner as above described is permitted to rise and fall freely, subj eat to the pressure of the spring, to follow the surface of the ground.

The spring guiding-rod is provided at its lower end with a series of holes, so that by shifting the bolt Z from one to another of these holes the normal height of the wheel in relation to the runner may be varied at will.

In practice it is found that a considerable advantage attends the use of the long wheelcarrying arms pivoted at a point considerably above the wheel. When thus mounted, the arms cause the wheel to ride over obstructions easily and with slight concussion.

Having thus described our invention, what We claim is 1. In a grain-drill, a drag-bar and the seed tube or hoe fixed to its rear end, in combination with the follower-Wheel, the Wheel-carrying arms extended forward past the sides of the tube and'pivoted'to the drag-bar at a point distant from the tube, and the spring acting to depress said arms.

2. The'seed tube or conductor and its dragbar, in combination With the follower-Wheel, the Wheel-carrier pivoted to the drag-bar and straddling the tube, the depressing-spring, and the spring guiding-rod extending from the wheel-carrier to an ear on the tube.

3. In agrain-drill, the follower-Wheel with an opening centrally through its hub, in combination with the carrying-arms with their bosses abutting Within the hub, and the through-bolt.

4:. .In a grain-drill, the follower-wheel, its

carrier-arms provided with the interlocking bosses or journals, and the through-bolt, said' members constructed and combined substantially as shown.

5. In a grain-drill, a seed-conductor and its drag -bar, in combination with a follower Wheel, and awheel-carrier pivoted to the dragbar at a point greatly above the level of the wheel and forward of the tube, whereby the Wheels are carried forward with a lifting tendency on the part of the carrier.

6. In a grain-drill, the drag-bar composed of two parallel members, in combination with the feed tube or hoe fixed to their rear ends, a follower-Wheel, and a wheel-carrier having at therear end two arms, which straddle the tube, and at the front end a single arm inserted and pivoted between the tWo members of the drag-bar. I I

In testimony whereof we hereunto set our hands, this 16th day of May, 1890, in thepres

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