US1021826A - Lister-cultivator. - Google Patents

Description

. P. L. DEWEY.

LISTER GULTIVATOB.

APPLICATION FILED MAY 17, 1911. w

Patented Apr. 2, 1912.

3 SHEETS-SHEET 1 INVENTOH 4M: @(M f WITNESSES:

F. L. DEWEY. 'LISTER GULTIV'ATOR.

APPLICATION FILED MAY 17, 1911.

Patefited 'Apr.'2, 1912. v

3 SHEETS-SHEET 2 lM/EMIOR A TTORNE Y5 I. L. DEWEY. LISTER cULTIvAToR; APPLICATION FILED MAY 11, 1911.

Patented Apr. 2, 1912.

3 SHBETSSHEBT 3.

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UNITED STATES PATENT OFFICE.

FREDERIG L. DEWEY, OF CANTON, ILLINOIS, ASSIGNOR TO PARLIN & ORENDORFF COMPANY, OF CANTON, ILLINOIS, A CORPORATION OF ILLINOIS.

LISTER-CULTIVA'I'OR.

To all whom it may concern:

Be it known that I, FREDERIC L. DEWEY, a citizen of the United States, residing at Canton, in the county of Fulton and State of Illinois, have invented certain new and useful Improvements in Lister-Cultivators, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to lister cultivators and particularly to one-row machines of this type provided with ridge-wheels for preventing the machine from upsetting.

It is the object of this invention to provide new and improved means for raising and lowering the cultivating appliances and the ridge-wheels whereby the relative positions of the parts may be changed as desired to meet the requirements for transportation, 'for turning from one row to another in the field, or for work in fields under different working conditions.

The means by which I have accomplished this object are illustrated in the drawings and hereinafter specifically described.

That which I believe to be new is set forth in the claims.

In the drawings, Figure l is a side view of my improved cultivator, showing the'cultivating appliances lowered and the ridgewheels raised. Fig. 2 is a side view showing the cultivating appliances raised and the ridge-wheels lowered. Fig. 3 is a plan view, with the seat removed. Fig. 4 and Fig. 5 are enlarged details of the pivotally mounted brackets by means of which the cultivating appliances are pivotally mounted on the frame.

Referring to the several figures of the drawings, in which corresponding parts are indicated by like reference characters, 10 indicates the tongue of my improved machine, secured to the rear end of whichis a heavy crossbar l1.

12 indicates frame bars bolted or otherwise suitably secured at their outer ends to the ends of said bar 11 and secured at their inner ends to said tongue.

13 indicates supporting wheels mounted on spindles 14 carried at the lower ends of 7 arms 1516 depending from the frame bars l1-12.

l718 indicate brackets clamped on the rock-shaft 19. 20 indicates a boss on the Specification of Letters Patent.

Patented Apr. 2, 1912.

Application filed May 17, 1911. Serial No. 627,774.

outside of each of the brackets 1718 sur rounding the rock-shaft, said bosses extending into suitable openings in short brackets 21 which project rearwardly from the frame bar 11. By this construction, the rock-shaft l9 and brackets l718 are pivotally mounted relative to the frame.

22 indicates arms clamped on the rockshaft 19.

23 indicates rods adjustably clamped on the ends of said arms 22.

24 indicates disks adjustably secured in any suitable manner upon the rods 23.

25 indicates a bracket clamped upon a rock-shaft 26. p

27 indicates a boss formed on the inner face of the bracket 25 surrounding the rockshaft 26, said rock-shaft and boss extending through a suitable opening 28 in the bracket 17, the other end of the rock-shaft extending through an opening 29 in the bracket 18.

30 indicates a lever bolted to the bracket 25, said lever 30 being provided with the usual hand-latch 31, link 32, and springseated slide-bolt 33.

34 indicates a circular rack-bar formed with the bracket 17, with the teeth of which rack-bar the lever 30 is adapted to be locked.

35 indicates brackets clamped on the rockshaft 26, to each of which is bolted or otherwise secured the front end of a drag-bar 36 bearing at its rear end the customary foot 37 and shovel 38.

39 indicates hangers, one mounted on each end ofthe rock-shaft 19, in each of which is journaled the upper horizontal end of an axle 40, on the lower horizontal end of which is journaled a ridge-wheel 41.

42 indicates a rock-shaft extending across the machine, being pivoted in openings 43 of the brackets l718. 44 indicates rods,

one pivotally connected to a crank at each end 'of said rock-shaft.

45 indicates brackets mounted on the spindles or axles 40, through suitable holes in which the rods 44 pass.

46 indicates cotter pins passed through the lower ends of the rods 45 to prevent the withdrawal of the rods 44 therefrom.

47 indicates compression coiled springs mounted on the rods 44 above the brackets 45, bearing at their upper ends against collars 48 clamped in position on said rods.

49 indicates a lever-socket clamped on the rock- shaft 42, and 50 indicates a lever bolted thereto.

51 indicates a circular rack-bar formed with the bracket 17, with which rack-bar the slide-bolt 52 of the lever 50 is adapted to engage, said slide-bolt 52 being connected by the ordinary link 53 with the handlatch 54.

5556 indicate hounds pivotally connected at their rear ends to the brackets 1718 by the bolts 57 passing through openings 58 in said brackets. 59 indicates a crossbar secured at its ends to said hounds 5556.

60 indicates a plate bolted at its forward end to the hounds 5556 and at its rear end to the crossbar 59, to which is attached the spring 61 supporting the usual seat 62. The hounds 5556 are bolted together at their forward ends, and to the hound 56 is secured a toothed segment 63. In front of this segment, foot-rests 64 are bolted to the hound 56.

65-66 indicate converging arms rising from the tongue 10, between the upper ends of which is pivotally mounted a lever 67. At its lower end this lever is pivotally connected with the segment 63, the lever thus serving to support the front ends of the hounds and their connected parts. The lever 67 is provided with the usual handlatch 68, link 69, and spring-seated slidebolt 70 adapted to engage the teeth of the segment 63.

With the parts in the positions shown in Fig. 2, with the ridge-wheels 41 down on a level with the wheels 18, and with the cultivating appliances in raised position, the machine is in condition for transportation to or from the field without any danger of upsetting under normal circumstances. When the cultivator is brought to the work, the machine is directed into position with the wheels 13 in or directly over the furrow. The lever 67 is then swung forward, moving the segment 63 and its connected parts backward. This serves to swing the brackets 17-18 backward to rock the rock-shaft 19 in a clockwise direction, lowering the shovels 38 and the disks 24, and raising the wheels 41 relative to the machine as a whole. The lever 67 is set at the proper notch so that the disks 24 will run to the depth desired. The lever 30 is then set at the proper notch in the rack 34 to cause the shovels 38 to run to the desired depth. The lever 50 is then set at the proper notch in the rack 51 to cause the wheels 41 to run normally at the proper height relative to the wheels 13 depending on the depth of the furrow between the ridges upon which the wheels 41 run.

It will be understood, of course, that under normal working conditions the springs 47 will be somewhat compressed with the cotter pins 46 a short distance below the brackets 45, the result being that either one of the wheels 41 is free to give still farther upward upon passing over any obstruction or to move downward to maintain its contact with the ground when passing over a hollow. In either event, this action is automatic and is accomplished without materially affecting the machine as a whole, the machine being kept at all times in its normal upright position so that the cultivating appliances are left free to follow the irregularities of the ground in normal relation thereto.

lVhen the end of the row is reached, the lever 67 is again pulled backward toward the operator, swinging the brackets 17 18 forward, raising the cultivating devices and lowering the wheels 41 relative to the wheels 13 so that the machine is kept from upsetting during the turning operation. For this stroke of the lever 67 backward, the operator may brace his feet on the foot-rests 64, thus giving a direct forward thrust to the hounds 55 56 and materially assisting in raising the cultivating appliances. When the machine is again in position over another furrow with the wheels 41 upon the ridges, the lever 67 is pushed forward, lowering the cultivating devices and raising the wheels 41 relative to the frame.

As will be seen from an inspection of Figs. 2 and 3, when the cultivating appliances are raised and the ridge-wheels are lowered, the pivotal connections of the hounds 55-56, upon which the seat 62- is located, with the brackets 1718 are forward of the rock-shaft 19 about which the brackets are pivoted on the frame, but when the cultivating devices are lowered and the ridge-wheels are raised, said pivotal connections are in rear of said rock-shaft. In other words, in raising the cultivating de vices the weight of the driver is shifted from one side to the other of the pivotal point of the bracket which supports it, so that the weight of the driver assists in holding the cultivating devices up relative to the frame when they are raised and assists in holding them down relative to the frame when they are lowered.

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

1. In a lister cultivator, the combination with a frame, supporting wheels mounted thereon, cultivating devices carried thereby, ridge-wheels carried by said frame, and means for raising or lowering said ridge wheels and by the same operation for lowering or raising said cultivating devices, of means coiiperating therewith for raising or lowering said ridge-Wheels independently of said cultivating devices.

2. In a lister cultivator, the combination With a frame, supporting wheels mounted thereon, cultivating devices carried thereby, ridge-wheels carried by said frame, and a lever by a stroke of which in one direction 1 said ridge-wheels are raised relative to said cultivating devices and by a stroke of which lever in the other direction said ridge-wheels are yieldingly depressed relative to said cultivating devices, of additional means cooperating therewith for raising or lowering said ridge-wheels and by the same operation for lowering or raising said cultivating devices.

8. In a lister cultivator, the combination with a frame, supporting wheels mounted to said frame, an arm adapted to be swung relative to one of said brackets, connect-ions between said arm and said ridge-wheel for holding said ridge-wheel in position, adjustable means for holding said arm in any of a plurality of positions relative to said bracket, and means for rotating said rockshaftto change the position of said ridgewheel and said cultivating devices relative to said frame.

7 5. In a lister cultivator, the combination of a frame, supporting wheels mounted thereon, a rock-shaft journaled therein, brackets mounted on said rock-shaft, cultivating devices carried by said brackets, a ridge-wheel adapted to be swung relative to said frame, an arm adapted to be swung relative to one of said brackets, connections between. said arm and said ridge wheel for holding said ridge-wheel yieldingly in a lowered position relative to said arm but whereby said ridge-wheel is adapted to be positively raised by an upward stroke'of said arm, adjustable means for holding said arm in any of a plurality of positions relative to said bracket, and means for rotating said rock-shaft to change the position of said ridge-wheel and said cultivating de vices relative to said frame.

6. In a lister cultivator, the combination of a frame, supporting wheels mounted thereon, a rock-shaft journaled therein,

brackets mounted on said rock-shaft, cultivating devices carried by said brackets, ridge-wheels adaptedto be swung relative to said frame, arms adapted to be swung relative to said brackets, a rock-shaft connecting said arms journaled in said brackets, connections between said arms and said ridge-wheels for holding said ridgewvheels in position, a lever mounted on said secondnamed rock-shaft, a segment mounted on one of said brackets and adapted to be engaged by said lever, and means for rotating said first-named rock-shaft to change the position of said ridge-wheels and said cultivating devices relative to said frame.

7. In a lister cultivator, the combination of a frame, supporting wheels mounted thereon, a rock-shaft journaled therein, brackets mounted on said rock-shaft, cultivating devices carried by said brackets, ridge-wheels pivotally mounted on said rockshaft, arms adapted to be swung relative to said brackets, a rock-shaft connecting said arms journaled in said brackets, rods pivotally connected to the ends of said arms and passing through suitable bearings carried by said ridge-wheels, coiled springs mounted on said rods and tending to hold said ridge-wheels down relative to said arms, adjustable means for holding said arms in any of aplurality of positions relative to said brackets, and means for r0- tating said rock-shaft to change the position of said ridge-wheels and said cultivating devices relative to said frame.

8. In a lister cultivator, the combination of a frame, supporting wheels mounted thereon, a rock-shaft journaled therein, brackets mounted on said rock-shaft, cultivating devices carried by said brackets, axles pivotally mounted relative to said rockshaft, ridge-wheels journaled on said axles,

arms adapted to be swung relative to said brackets, a rock-shaft connectmgsaid arms journaled in said brackets, rods pivotally connected to the ends of said arms and passing through suitable hearings on said axles,

coiled springs mounted on said 'rods and tending to hold said ridgewheels down relative to said arms, pins through the lower ends of said rods below the hearings on said axles, a lever mounted on said second named rock-shaft, a segment mounted on one of said brackets and adapted to be engaged by said lever, and means for rotating said firstnamed rock-shaft tochange the position of said ridge-wheels and said cultivating devices relative tosaid frame.

9. In a lister cultlvator, the combination of a frame, supporting wheels mounted thereon, a bracket pivotally mounted on said frame, cultivating devices carried by said bracket adapted to be raised or lowered as said bracket is swung on its pivot, a link pivotally connected to said bracket, a toothed segment mounted on said link, and a lever pivotally connected to said segment and pivotally connected to said frame above the connection to the segment whereby by a stroke of said lever backward said cultivating devices are adapted to be raised.

10. In a lister cultivator, the combination with a frame, supporting wheels mounted thereon, a bracket pivotally mounted on said frame, and means for swinging said bracket on its pivot and looking it in adjusted position, of an arm rigidly connected to said bracket, a disk cultivating device revolubly mounted on said arm, a drag-bar pivotally connected to said bracket, a shovel carried by said drag-bar, means for swinging said drag-bar relative to said bracket and for locking it in adjusted position, a ridgewheel pivotally mounted relative to said bracket, and means for yieldingly swinging said ridge-wheel relative to said bracket and for locking it yieldingly in adjusted position.

11. In a lister cultivator, the combination with a frame, a set of supporting wheels carried thereby, cultivating devices mounted on said frame, a set of ridge-wheels carried by said frame, and means for raising one of said sets of wheels relative to the other set and by the same operation for raising or lowering said cultivating devices relative to said frame, of additional means whereby one set of wheels may be raised relative to the other set independently of said cultivating devices.

FREDERIC L. DElVEY. lVitnesses:

V. B. BARNEY, M. Cavns.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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