US708509A - Lister-cultivator. - Google Patents

Description

Patented Sept. 2, I902.

W. S. GRAHAIW.

LISTER GULTIVATOR.

(Application filed May 8 1902.)

2 Sheets-.Sheet I.

(No Model.)

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V vim-C- No. 708,509. Patented Sept. 2, I902.

W. S. GRAHAM.

LISTER CULTIVATOB.

(Application filed May 8, 1902.) (No Model.) 2 SheetsSheet 2.

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WILLIAM S. GRAHAM, OF CANTON,

ILLINOIS, ASSIGNOR TO PARLIN dz ORENDORFF COMPANY, OF CANTON, ILLINOIS, A CORPORATION OF ILLINOIS.

LISTER-CU LTIVATO R.

SPECIFICATION forming part of Letters Patent No. 708,509, dated September 2, 1902.

Application filed May 8, 1902. Serial No. 106,462. Lllo model.)

To ctZZ whom it may concern:

Be it known that I, WILLIAM S. GRAHAM, of the city of Canton, county of Fulton, and State of Illinois, have invented certain new and useful Improvements in Lister-Cultivators, of which the following is a specification.

One object of this invention is to provide improved means for raising and lowering the cultivating appliances, whereby the weight of the driver is utilized in holding thedisks or shovels in the ground, in raising and holding them out of the ground, and in relieving neckweight of the tongue.

Another object is to provide for connecting two cultivators by means of a spreader-board in an improved and simplified manner, so that the cultivators may separate from and approach each other in following the rows and the frames will be held against side tilt.

Another object is to enable the cultivating appliances to be run unlocked or free to follow the contour of the soil unaffected by their connection with the frame; and still another object is to provide a wheel-sustained frame having crusher-boards in advance of the eultivating appliances.

The invention is exemplified in the structure 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 double-row lister-cultivator embodying my improvements, one end of the spreader-board being broken away to expose details of construction that would otherwise be obscured. Fig. 2 is a side elevation showing the cultivating-disks lowered to an operative position. Fig. 3 is a side elevation showing the disks raised.

Wheels, as l, are journaled on cranked axles, as 2, and the axles are connected with tongues 3. Straps 4 extend divergingly from the rear ends of the tongues and connect with cross-bars 4. Shafts 5 are journaled in brackets attached to cross-bars A, and the cultivating appliances are attached to the rock-shaft 5. Lock-levers, as 13, are fulcrumed on the tongues in front of the supporting-wheels '1, and arms 14 extend inward and forward from the levers. Segment-a1 racks 1(5 coact with the lock-levers and provide pivots 15, on which the levers fulcrum. Horizontal frames 11 have bars 12 extending forward above the tongues and connecting with arms 14 of thelock-levers. The frames 11 have considerable Width. They are preferably made of strap-metal bent to form, and they occupy positions above the supportingwheels and the frames thereof. Lugs 17 are connected to extensions 12 of frames. 11 near the front ends thereof, and bars 13 are pivoted on downward extensions of the lugs. The

bars 18 extend under frame 11 beyond the rear bars thereof, and the rear bars of the frames are preferably curved to conform to arcs of circles drawn with lugs 17 for centers.

The spreader-board 19 rests on the frames 11, and it is pivotally connected with the swinging bars 18, as shown by dotted lines at 20 in Figs. 2 and 3. A seat 2L and a foot-rest 27 are attached to the center of the spreaderboard. The frames 11 are each supported from a shaft 5 by means of rock-arms, and the rock-arms are constructed to provide for adjustment. Each rock-arm comprises a part 6, attached to the shaft, and a part 3, pivoted to the frame 11 and to part 6 of the arm. Part 6 of the arm has a slotted head 7, the slot in which is concentric with the pivot 9 of part 8, and part 8 has a bolt 10, that extends through the slot and provides means for securing the two parts immovably together. Arms 22 are attached to shaft 5, and they carry the cultivatingdisks 23. Beams 28 (shown in Fig. 1) may also be attached to the shafts 5 and provided with shovels. The crusher-boards 26 are secured to the crossbars A by means of straps 24 and 25, and they connect with extensions of shafts 2. The twopart arms that support the rear end of frames 11 may be adjusted to raise or lower the cultivating appliances to a desired relative position, and when that is properly effected the cultivating appliances are raised and lowered by means of the lever 13. When the disks are in the ground, the connections of parts 8 of the rock-arms with the frames 11 are in the rear of the rock-shafts, and the weight of the frames, the spreaderboard, and the driver tends to hold the disks to their work. In raising the disks the upper ends of the rockarms swing in front of the shafts and the weight on the frames tends to hold the disks raised and to counterbalance the lifting effect on the tongue. The rack 16 provides means for locking the disks raised or lowered; but entire freedom of motion may be given the disks by holding the lock of the bolt out of engagement with. the rack. The spreaderboard rests on frames 11, the bars 18 swing under the frames, and the connection of the spreader-board with the swinging bars secures the board on the frames, while permitting free endwise motion of the board within certain limits.

The wheels 1 follow the furrows. The crusher boards travel in advance of the wheels, leveling and pulverizing the soil at the sides of the furrows, and the disks travel in the rear of the wheels and operate in the usual manner.

One of the cultivators shown in Fig. 2 may be used for single-row cultivating, and in that case the seat should be transferred to the frame 11 of the cultivator used.

I claim 1. In a lister-cultivator, the combination of a pair of ctiltivators adapted to follow furrows, horizontal frames carried by the cult-ivators, a spreader-board laid across the horizontal frames and link-bars pivoted at their front ends to the frames, connected pivotally between their ends to the spreader-board and having their rear ends extended below crossbars of the frames.

2. In a lister-c-ultivator, the combination of a pair of cultivators adapted to follow fur- .rows, horizontal frames on the cultivators having each an arc-formed rear cross-bar and a pair of side bars, a spreader-board laid on the side bars of the cultivator-frames and link-bars beneath the frames pivoted at their front ends to the frames, connected pivotally with the spreader-board and having their rear ends extended beneath the arc-formed crossbars of the frames.

3. In a lister-cultivator, the combination of a cultivator-frame adapted to run in a furrow, a lever, a rock-shaft, cultivating appliances attached to the rock-shaft and extended rearward therefrom, arms extending upward from the rock-shaft, and a seat-supporting frame sustained by the arms and by the lever, whereby the seat-supporting frame is rocked forward and back as the cultivating appliances are raised and lowered.

4. In a lister-cultivator, the combination of a cultivator-frame adapted to run in a furrow, a lever fulcrumcd in the front of the cultivator-frame, an upward-extended arm on the lever, a rock-shaft journaled crosswise of the rear part of the cultivator-frame, cultivating appliances attached to the rock-shaft and extended rearward therefrom, arms extending upward from the rock-shaft, and a seat-supporting frame sustained at its rear end by the rock-arms and at its front end by the extension of the lever.

5. In a lister-cultivator, the combination of a cultivator-frame adapted to run in a furrow, a lever fulcrumed in the front of the cultivator-frame, a rock-shaft journaled in the rear part of the cultivator-frame crosswise thereof,cultivating appliances attached to the rock-shaft and extended rearward therefrom, arms extending upward from the rock-shaft, other arms pivoted on the arms of the rockshaft, means for adjusting the pivoted arms on the arms of the rock-shaft, and a seat-supporting frame sustained at its rear end on the two-part arms and at its front end on the lever.

6. In a lister-cnltivator, the combination of a cultivator-frame, an arched axle, supporting-wheels on the axle, crusher-boards carried by extensions of the axle and braced from the frame, and cultivating appliances in the rear of the spreader-boards.

In testimony whereof I sign my name in the presence of two subscribing witnesses.

WM. S. GRAHAM. Witnesses:

W. B. BARNEY, G. B. CHANDLER.

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