US2523421A - Adjustable land roller and harrow - Google Patents

Description

Sept. 26, 1950 F. M. BuscHoR 2,523,421

ADJUSTABLE LAND ROLLER AND HARROW Fild Nov. 11, 1945 3 Sheets-Sheet 2 BE HNN N Sgpt. 26, 1950 F. M. BUSCHOR ADJUSTABLE LAND ROLLER AND HARROW 3 Sheets-Sheet 3 Filed NOV. 11, 1943 I INVENTOR. v 1 FMBusch/or ,clods of dirt,

Patented Sept.

UNITED STATES PATENT OFFICE- 2,523,421 ADJUSTABLE LAND ROLLER AND HARROW .Frank M. Buscl'ior, Celina, Ohio Application November 11, 1943, Serial No. 509,8 90

1 Claim.

This invention relates to a land roller and harrow and it generally aims to provide an improved, dur'a'b'le 'and efficient constructionwhich is adjustable according to different conditions encountered.

It is particularly aimed to provide a structure wherein a pair of rollers are provided which are adjustableso as to be selectively usable when aligned or when they are in V-relation or angularly arranged with respect to each other, in which angular position, the rollers will better aid in straight line draft and will better crush It is also aimed to provide a novel structure having harrow means both in front and in rear of the rollers, the former serving to level the ground. as an aid in the rolling and crushing thereof, While the latterwill impart a final harrowing action to the ground.

In addition, it is aimed to provide a novel structure having the rollers mounted in pivotally supported frames and having the adjusting means attached to both ends thereof, so that the rollers will be maintained sufficiently rigid and definitely positioned in the various positions thereof.

The more specific objects and advantages will become apparent from a consideration of the description following taken in connection with accompanying drawings illustrating an operative embodiment.

In said drawings:

Figure 1 is a plan view of the improved im-,

plement;

Figure 2 is a vertical sectional view taken on the line 22 of Figure 1;

Figure 3 is a vertical section taken transversely of the implement on the line 33 of Figure 1;

Figure 4 is an enlarged sectional view taken on the line -4--4 of Figure 3;

Figure 5 is a detail section taken on the line 55 of Figure 4;

Figure 6 is a vertical section taken on the line 66 of Figure 2;

Figure 7 is a Vertical section taken on the line of Figure 3; and

Figure 8 is a detail section taken on the line 8-8 of Figure '7.

Referring specifically to the drawings wherein like reference characters designate like or similar parts, the machine has a suitable skeletonized main frame generally designated A, the same including beams at IU from which suitable brackets H suspend a rectangular or open subframe [2. V

A pair of generally U-shap'ed mountings I3, I5

have central upstanding studs l4, pivotally jour naling the same on longitudinally extending elemerits |5a of the under beams Ill. Such mountings l5 have conventional land rollers i6 journaled in vertical portions thereof by means of a shaft or trunnion l8. Arms l9 extend laterally from the outermost portions ll through horizontally enlarged slots 20 of slide blocks 2| defined for movement by brackets 22 suspended from the sub-frame l2, the blocks being in direct engagement with such frame and having longitudinal grooves 22 in their lower surface which are engaged with ribs 23 of the brackets 22, to maintain the slide blocks in place.

Anchored inopenings 24 of the arms l9 are cables or other flexible draw elements 25 which are guided over pulleys at 26 and 21, suitably mounted on the sub-frame l2 and which cables. are similarly attached to the lower ends of levers 28, pivoted at 29 to the underbeams I0, such, levers 28 extending above the main frame A.. It will be noted that the cables 25 extend rear- All the: inner ends of such frames, links 36, by means;

wardly from the outer ends of frames.

of approximately universal joints 3|, are connected to the inner vertical members I1 and.

extend'forwardly therefrom, being attached by an approximately universal joint 32 to the lower.- end of the levers 33, pivoted at 34 to the under. beams l0.

Levers 33 also extend above the main frame: A and they pass through and above suitably; shaped enlarged openings 35 in an adjusting: block 36 through which an upper horizontall portion 31 of the adjusting block 36 passes, in: order to slidably mount such block. The part 3'! is the upper portion of a suitable bracket generally designated 38 arising from and fastened to a central beam 39 of the frame A. Such block '36 has a, screw-threaded opening 40 therethrough and an adjusting screw 4| passes through such opening and meshes with, the screw threads therein. Adjusting screw 4| is journaled in an upright portion 42 of the bracket 38 and held against longitudinal movement with respect to the same as by means of collars 43.

A hand wheel 44 on the screw 4| facilitates turning thereof. The forward end of the screw 4|, is threaded through a cross piece 45 between the upper ends of the levers 28.

As a result of the construction described, upon turning of the screw 4|, the adjusting block 36 will be moved forwardly or rearwardly accordand guiding purposes at 46.

front mounting or'bracket 41, having a king rod 48 journaled in the forward end of the beam 39. Also in a bearing 49 located above the beam and positioned by a bar 50 extending angularly from the beam 39. A tongue or draft means 5| is suitably connected to the mounting 41.

A drivers seat 52 is appropriately mounted as .by a bar 53, on the rear end of the beam 39 and .such positioned as to enable the operator while :seated to turn the wheel 4 and operate the other main controls.

Forwardly of the rollers I6 and rearwardly thereof, I provide similar harrow devices B capa- ?ble of being raised entirely out of engagement 'with the soil or lowered to any permissible depth. These harrowing devices are of skeletonized :framework 54 including longitudinally extending rods 55 and longitudinally extending bars 56, par- ;allel therewith, the framework having crossing, rconnecting elements 51. The bars 56 carry rigid "vertical harrowing teeth or spikes while the bars or rods 55 carry in alternating relation with the latter, curved resilient spring harrow teeth 59, which preferably engage the ground at the rear of the spikes.

Rising from the framework 54 are rods 60, which are slidable through openings in the under frame |2. Such rods 60 are also slidable through ."a bar 6| above the main frame and they have heads 62 above bar 6|. Cushioning springs 63 surround the rods 60 and are interposed between the subframe I2 and the bar 6|, directly in engagement with the latter and an abutment 64 provided on rods 60. angle ends 65, pivotally connected at 66 to brackets 61 fastened on the main frame.

The bar 6| has crank or 4 i Bar 6| is also engaged by a crank 68 of adjusting levers 69, pivoted at III on the main frame and having latching means 1| to coact with segments 12, to secure the levers 69 at different adjustments accordingly securing the harrow means or devices B out of engagement with the ground or in engagement therewith to any desired extent, downward movement of the harrow means being urged by the springs 63, and such springs also permitting the harrow devices to yield in the event undue obstructions are encountered so as not to break or fracture.

I claim as my invention:

An implement of the class described having a frame, a mounting element pivoted on the frame,

a roller journaled in the mounting element, a

lever connected to the mounting element, and adjusting means operable to move the lever to vary the angle of the mounting element and roller, consisting of a block, said block having an opening engaged by the lever, means operable to slide said block comprising a screw element, a bracket on said frame mounting the screw element, a flexible connection extending from the mounting at the end opposite to said lever, a

.second lever to which the flexible connection is joined, and said second lever being in abutment with said screw for the purpose specified.

FRANK M. BUSCHOR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 669,679 Butler Mar. 12, 1901 923,431 Hessenauer June 1, 1909 967,092 Waterman Aug. 9, 1910 1,051,924 Smithson Feb. 4, 1913 1,854,052 McDoWall Apr. 12, 1932 FOREIGN PATENTS Number Country Date Great Britain of 1904

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