US1421113A - Disk cultivator - Google Patents

Description

D. M. WATTERS.

DISK CULTIVATOR.

Patented June 27, 1922.

S EETS SHEET l- INVENTOR. JDamIJ/ 171/. Wam-a.

D. M. WATTERS.

DISK CULTIVATOR.

-APPL|ATION FILED OCT. 20, 1919.

Patented une 27, 1922. v

3 SHEETS-SHEET 2.

'INVENTOR.

IIII'I If I n. M. WATT ERS.

' DISK CULTIVATOR. APPLICATION FILED OCT. 20, 1919] 4 Patnted June 27,1922.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

DANIEL'M. WATTERS, OF LOS ANGELES, CALIFORNIA, ASSIGNOR TO KILLEFER MANU FACTURING COMPANY, LOS ANGELES, CALIFORNIA, A

FORNIA.

CORPORATION OF CALI- msx cumrva ron.

Application filed October 20, 1919. Serial No. 331,807. I

T 0 all whom it may concern."

Be itknown that I, DANIEL M. Wia'r'rnns,

a. citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Disk Cultivator, of which the following is a specification.

This invention relates to cultivators of the type having a plurality of cultivator member supporting frames adapted to be moved into different relative positions and tractor or other motive power an object of the invention is to produce a cultivator of this type of which the frames can be adjusted with great ease.

Another object is to effect the relative adjustment of the frames by the pull of the Another object is to effect the relative adjustment of the frames automatically withroad or other surface which it is not de-- sired to cultivate.

Fig. 3 1s.a sectional elevation on llne indicated by m w Fig. 2.

Fig. 4 'is a sectional elevation on line indic'ated by wa? Fig. 2.

Fig. 5 is an enlarged side elevation of a portion of the'draft device.

Fig. 6 is an enlargedsectional elevation on line indicated by ma:, Fig. 2.

Fig. 7 is an enlarged detail partly in section of the draft hooks.

There are provided cultivator frames arranged side by side in pairs, the pairs being positioned one'behind the other. Any number of pairs may be employed and in the drawings two such pairs are disclosed, the frames being designated 1, 2, 3, and 4 respectively. The frames 1, 2, in the instance shown, constitute the front pair and the frames 3, 4, constitute the rear pair. The

frames are alike in every respect and may be constructed as desired. Since the frames are of like construction a description of one frame will sufiice for all of them and said frame is constructedas follows 1 Transversely extendingfront, intermediate and rear bars 5, 6 and 7 respectively are connected together at their ends by end bars 8, 9. To the bars 8, 9 are bolted journal boxes 10 in each of which is journaled one of the spacer sleeves 11 that are interposed between adjacent cultivator members that may be in the form of disks 12, as shown, mounted on a square axle 13, the sleeves 11 serving to maintain the correct spacing between the disks 12. Theaxle 13 is provided on its inner end with a nut 14 screw-threaded thereon against a washer -15 whichengages' the 'inner'face of the innermost disk. The axle 13 is provided on its outer end with a nut or head 16 engaging a washer 17 the nut forcmg said washer against the outer face of the outermost disk 12. It is clear that when the nut 14 and nut 16 are turned up tight they force'the disks and sleeves together so as to hold all firmly in place against endwise movement on the axle. The sleeves 11 and disks 12 cannot turn on the axle because of said axle .being'square in cross section. Secured to the transverse bars 5, 6 and 7 by bolts 18 or their equivalents are disk cleaners in the form of downwardly curved straps 19 which are interposed between adjacent disks 12 and pass beneath the sleeves 11. These straps 19 may be more or less resilient.. Braces 20 connect the bars 6 and 7 to one another and are arranged diagonally relative thereto.

The end bars 9 of each of the frames are provided at their forward ends with eyes 21. and bolts 22 extending through the eyes 21 fasten chains 23, 24, 25 and 26 to the frames 1. 2, 3 and 4 respectively.

The forward ends of the rear chains 25, 26 are fastened by bolts 27 to eyes 28 formed in the rear ends of the end bars 8 of the front frames. Said bolts 27 also serve to pivot to the bars 8 of the front frames a pair of levers 29 which are pivoted together near their middle by a bolt 30. The levers 29 may each be formed of a single member, if desired, but in the instance shown in the drawings each lever comprises a pair of flat superposedmembers. The rear ends of the levers 29 are pivoted by bolts 31 to eyes 32 formed in the forward ends of the bars 8 of the rear frames. The levers 29 thus form a lazy tong connection between the front pair of frames and the rear pair. The chains 25, 26 are of such length as to be taut when the rear pair of frames 3, 4 and the levers 29 are in the position shown in Fig. 1 and also when hook 34 and a lower hook 35. The upper.

hook 34 is provided with an eye 36 for connection to any suitable draft gear for drawing the cultivator. The hook 34 engages the forward end of a chain 37 and the rear end of said chain is fastened by a bolt 38 to a pair of bell crank levers 39, said bolt 38 forming a pivot for the levers 39. These bell crank levers may, if desired, be each formed of a single member, and in the instance shown in the drawings each of them comprises a pair of superposed members, the

Between the forward ends of the bars 8 ofeyes 14 to one another, said means being 65.,

members of one lever being alternately arranged with the members of the other. lever.

The rear ends of the levers 39 are pivoted by bolts 40 to eyes 41 formed in the forward ends of the end bars-8 of the front frames.

the frames '1, 2 and the bars 5 extend braces 49. Thus it is clear when the chain 37 is drawn it produces a pull-on the pivot 38 of the levers 39 and said levers 39 produce a pull on the end bars 8 of the front frames so as to draw the cultivator over the ground to be cultivated, the parts then being in the positionsshown in Fig. 1. The chains 23, 24 exert a pull on the outer ends of the front frames 1, 2.

The lower hook 35 is adapted to engage an eye 42 which is pivoted by bolts 43 to a pair of links 44 which are in turn pivoted by bolts 45 to the forward ends of the bell crank levers 39. When the'hook 35 engages the eye 42 it is clear that a pull forward on the hook 35 will be transmitted through the eye 42 to the links 44 and said links will operate to swing the forward. ends of the levers 39 toward one another thus moving the rear ends of said levers away from one another so as to produce a separating action on the for ward ends of the bars 8 of the front frames. \Vhenthis movement has gone sufliciently far it results in the front frames 1, 2 alining themselves with one another endwise as in Fig. 2. The nuts 14 of the rear axle are in the form of eyes. I

To prevent any tendency to moving away from one another ofithe rear frames 3, 4, means are provided to loosely connect the more or less adjustable sothat the distance between the eyes 14 can be readily diminished without the connecting means interfering therewith. In the instance shown in the drawings the connecting means comprises interconnected links 46 and bolts 47 in the links passing through the eyes 14.

It is believed that the operation of the cultivator will be clear from the foregoing, but the operation may be summarized in brief as follows: Assuming that the parts are in the positions shown in Fig. 1 and that the hook 34 is connected to suitable motive power such, for instance, as a tractor, it is clear that the draft power will be applied through the chains 23, 24, 37 and levers 39 to the front frames 1, 2 to pull said frames along the ground to be cultivated. The disks 12 will thereupon cut into the ground in a manner well understood in the art pertaining to cultivators so as to cultivate the ground. Owing to the chain connections 25, 26 and levers 29 between the front frames 1, 2 and rear frames 3, 4 it is clear that the rear frames will also be pulled along the ground and that they will be maintained in the angular relation shown in Fig. 1, the relative positions of the frames 3, 4 being the reverse of that of the frames 1, 2 respectively, as is customary in this type of cultivator.

If the operator desires to run the cultivator along a highway without injury to the highway, or if he desires to run the cultivator close to a'tree or other obstruction, he will back the tractor toward the cultivator sufliciently far so that he can engage the hook 35 with the eye 42. He will then drive ahead and the chain 37 being slack will no longer produce a direct pull on the front tractor frames but the pull will be exerted through the eye 42 and links 44 so as to cause the rear ends of the bell crank levers 39 to swing away from one another, thus pushing the forward inner corners of the frames 1, 2 away from one another and the inner rear corners of said frames toward one another, said frames pivoting with respect tb one another around the hemispherical inner washers 15 of the front axle. This movement of the cultivator frames 1, 2 causes the forward ends of the levers 29 to move toward one another and this in turn causes the forward inner corners of the rear frames 34 to move toward one another and the rear inner corners of said frames to move away ward front cultivator frames to cause the front inner corners of the front frames to approach one another. This causes the levers 29 to spread the front inner corners of and disengagement of the hook with the eye 32.

I claim:

, 1. A cultivator comprising a plurality of frames arranged side by side, cultivator members carried by the frames, bell-crank levers pivoted at their rear ends to the inner front corners of the frames respectively and pivotally connected with one another, links pivoted to the forward ends of said levers. a chain fastened to the pivot of the levers. an eye pivoted to the links, and connections fastened to the frames near their front outer corners and connected to the first named chain.

2. A cultivator comprising a plurality of frames arranged in pairs, cultivator niembers carried by the frames, draft means connected with the front frames for pulling said frames over the ground. said means includin a device for effecting a change in the relative positions of the front frames when power is applied to the draft means, a pair of levers pivoted to one another near their middle and pivoted at their forward ends to the rear inner corners of the front frames and pivoted at their rear ends to the front inner corners of the rear frames. and

means connecting the rear frames near-their outer front corners with the inner rear corners of the front frames.

3. A cultivator comprising a plurality of frames arranged side by side, cultivator members carried by the frames, bell-crank levers pivoted to the inner front corners of the frames respectively and pivotally connected with one another, links pivoted to the forward ends of said levers, a chain fastened to the pivot of the levers, an eye pivoted to the links. connections fastened to the frames near their outer corners and connected to the first named chain, a second pair of frames. cultivator members carried by the second pair of frames, and'connect-ions betweenthe frontand rear pairs of frames operative by change of relative positions of the front frames to change the relative positions of the rear frames.

4. A cultivator comprising a plurality of frames arranged in pairs, cultivator members carried by the frames, bell-crank levers pivoted at their rear ends to the inner front corners ofthe front frames respectively and pivotally connected with one another. links pivoted to the forward ends of said levers, a chain fastened to the pivot of the levers, an eye pivoted to the links, connections fastened to the front frames near their front outer corners and connected'to the first named chain, a pair of levers pivoted to one another near theirtmiddle and pivoted at their forward ends to the rear innercorners of the front frames and pivoted at their rear ends to the front inner corners of the rear frames, and means connecting the rear frames near their outer front corners with the inner rear corners of the front frames.

5. A cultivator comprising a plurality of frames arranged in pairs, one pair behind the other, cultivator members carried by the frames. levers connecting the front portions of the front frames to one another and operative to change the distance between the front portions'of the front frames, means to hold said levers in different positions, levers connecting the rear portions of the front frames to the front portions of the rear frames and operative by change of distance between the rear portions of the front frames to-change the distance between the front portions of the rear frames, and connect-ions between the rear frames to limit movement away from one another of said rear frames.

of frames, a rear pair of frames, cultivator members carried by the frames, lever means operative to one position to simultaneously shift one end of the front pair of frames rearward and one end of the rearpair of frames forward, said lever means being op-' erative to another position to simultaneously shift said end of the front pair of frames forward and said end of the rear pair of frames rearward, and means to connect different portions of the lever means to a motive power to cause the lever means to assume the different positions.

Signed at Los Angeles, California, this 15th day of October, .1919.

DANIEL M. VATTERS.

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