US1412721A - Cultivator - Google Patents

Description

W. L. THOMAS.

CULTIVATOR.

APPLICATION man APR-13, 1911.

Patented Apr. M, 1922.

2 SHEETSSHEET s a m WILLIAM L. THOMAS, 0F I-TIGDUNS STUR-E, GI'J-QR-GIA.

CULTIVATQBI.

and I do hereby declare the following to he,

a full, clear, and exact description of the in vention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to cultivators, and the primary object of the invention is to provide a one-horse disc cultivator, which includes a supporting frame to which a pair of gangs of cultivating discs are attached,

so that the disc may be adjusted with respect to the supporting frames for throwing the dirt inwardly toward each other and outwardly away from each other or the center of the cultivator.

A further object of this invention is to pivotally connect the gangs of cultivating discs to the sup-porting frame and provide hand levers, by means of which the angles of the discs, with espect to the direction of travel of the cultivator, may be varied as desired. I

lVith the foregoing and other objects in View, this invention consists in such novel features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings and claimed.

In describing the invention in detail reference will be had to the accompanying drawings wherein like characters designate like and corresponding partsthrougl'iout the several views, and in which Figure 1 is a side elevation of the improved cultivator;

Figure 2 is a rear elevation of the cultivator;

Figure 3 is a top plan view showing the discs positioned for throwing the dirt outwardly;

Figure 4 is a top plan view showing the discs positioned for throwing the dirt inwardly;

Figure is a section on the line 55 of Figure 3; and

Figure 6 is a section on the line 66 of Figure 4.

Referring more particularly to the drawings, 1 designates the supporting frame of the cultivator which is triangularly shaped,

Specification of Letters Patent.

Patented Apr. ill, 1922.

Application filedApril 13, 1917. Serial No. 161,893.

having its side rails 2 and 3 converging at their forward ends. ii clevis l is attached to the forward converged ends of the side rails '2 and 3 and it is provided for connection with a double or single-tree for hitching the draft animal to the cultivator. A longitudinally extending centrally disposed bracing bar 5 is carried by the frame 1 and it ext'endsrearwardly from the forward converged ends of the side rails 2 and 3 and is connected to the rear cross bar 41- of the cultivator frame, as clearly shownin Figures 3 and 4- of the drawings. The rear cross bar l has a pair of forked members 5 pivotally connected thereto as shown at 6 through the medium of'bolts 7. The forked members 5 comprise spaced arms 8 and 9. Suitable bearing or wear sleeves 11 are positioned about the bolts 7 as clearly shown in Figure 5 of the drawings. The bolts 7, which extend through the bight portion of the substantially U-shaped or forked members 5 and through the rear cross bar 4, for pivotally connecting the forked members 5 to the rear end of the supporting frame so that the gangs of cultivating discs may be swung into the positions illustrated in Fig urcs 3 and 4.- of the drawings. These respective positions are provided for throwing the dirt outwardly away from the center of the cultivator or inwardly toward the center of the cultii' ator, as is desired in diffcrcnt cultivations.

The arms 8 and 9 extend downwardly from the bar and they are connected to the casings '14; which enclose or carry the disc bearings which are of the usual construction. Discs 15 which are carried by the casings 14lof the ordinary construction employed in disc barrows or cultivators, haying concaved portions and convexed portions as indicated in Figures 3 and i of the drawings, so that when the are positioned. as shown in F igure at of the drawings. the dirt loosened and broken up by the discs will be thrown inwardly or when the discs are positioned with their eoncaved portions positioned outwardly, they will throw the dirt outwardly away from the center of the cultivator.

One arm of each of the bracket members 5 has a hoot: 17 attachedthereto, to which hook at bar 18 is connected. The bar 18 extends forwardly, and is adjustably connected, through the medium of a suitable bolt, as indicated at 19 to the lower end of a hand lever 20. The hand lever 20 is it has a dog mechanism 21 carried thereby which coacts with a quadrant 22 carried by the brace 5. Two of these levers are pro vided, one for connection to each of the" bars 18, as will be seen by reference to the drawings, and pivotal movement of the levers Will rock or move the forked members 5 upon their pivotal connection with the rear cross bar 4, so as to regulate the angle of the disc 15. with respect to the direction of travel. of the cultivator.

The central brace 5 has handles 2st of? the usual construction attached thereto as indicated at 25 and these handles are connected intermediate their ends to upstandin angularly disposed braces 26. The braces 26 are attached to the rear cross bar tand we tend upwardly therefrom having their upper ends converging and attached to the handles 24. 4

In reducing the invention to practice, such minor featuresof construction, combination and arrangement of parts may necessitate alterations to which the patentee is entitled, provided such alterations are what is 7 of the longitudinal bar and connecting the same with the cross bar, earth treating elements carried by said cross bar, handle bars connected to the opposite sides of said lingitudinal bar, and inverted V-members secured to opposite end portions of the rear cross bar and receiving the respective handle bars in their angles.

in presence of tWo Witnesses.

, WILLIAM L. THOMAS.

Witnesses i i I I GRADY FOSTER, DELIA HIGDON.

In, testimony whereof I afiix my signature 7

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