US1221152A - Riding-harrow. - Google Patents

Description

M. DE WITT. RIDING HARROW.

APPLICATION FILED JUNE 25.1915- L22L152m Patented Apr. 3, 1917.

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IVIURL DE WITT, OF MOUNT AYE, IOWA.

RIDING-HARROW.

Specification of Letters Patent.

Patented Apr. 3, 1917.

Application filed June 25, 1815. Serial No. 36,338.

To all whom it may concern:

Be it known that I, MURL DE \Vrr'r, a citizen of the United States, residing at Mount Ayr, in the county of Ringgold and State of Iowa, have invented certain new and useful Improvements in lflidinglarhows, of which the following is a specification.

My invention relates to harrows and more particularly to harrows of the riding type.

An object of the invention is to generally improve in the construction of the harrow cart.

A further object of the invention is to provide a wheel mounting of novel arrangement whereby inequalities and obstructions in the field-bed may be encountered and success fully passed without deviating the harrow sections from a straight line course'of travel.

Generically speaking, the invention may be said to consist in the novel construction, combination and arrangement of parts to be hereinafter more fully described. and particularly pointed out in the appended claims.

In the drawings, annexed:

Figure 1 is a plan view of my improved harrow cart Fig. 2 is a central longitudinal sectional view;

Fig. 3 is a section on the line 3-3 of Fig. 2; and

Fig. 1 is a detail perspective view of the casting utilized as a support for the barrow wheel.

Referring now to the drawings by numerals, 1-1 designate the harrow sections, each equipped with teeth 2 of suitable size and design. The sections 1 are fastened as indicated at 3 to an evener 4 mounted forwardly of the harrow sections and in such proximity to the ground as to maintain said sections at all times in substantially a horizontal plane.

The harrow cart designated as an entirety by the numeral 5 is made up of a frame of novel design or formation in that the forward end thereof extends at an angle to the vertical that the evener may be positioned as before pointed out. The mentioned frame is preferably constructed from a. single casting, the sides of which extend in parallelism at the tail end of the harrow and in divergent relation at the forward end form 8.

thereof. A cross beam 6 acts as a brace for the frame as do the beam 7 and the plat- The platform 8 is enlarged at a point intermediate its ends or as indicated at 9 and provided with the vertical. bore 10 within which the shank 11 of the wheel casting 12 is fitted. Casting 12, as shown to advantage in Fig. 4 is of an inverted U-shaped formation in that the arms thereof extend in parallelism and afford a support for an axle 13 upon which the wheel 141 of the harrow is mounted.

The under side of the enlargement 9 is disposed in such relation to the casting 12 as to rest on the top face of the connecting portion thereof. If desired, a washer 15 may be interposed between said connecting portion and said enlargement.

The shanl: 11 is exteriorly threaded at its free end or as indicated at 16 to receive a nut 17, which nut, as will appear hereinafter acts as aretaining means whereby an equalizer rod or arm 18 is held in place. The shank 11 penetrates the said equalizer rod at a point equi-distant from its ends to .in this manner serve as a pivot support therefor.

Arm 18 extends transversely of the frame in a substantially horizontal plane and is connected with the brace beam 6 through the medium of rods 19 and springs 20. That a direct pull may be exerted on the terminals of the mentioned arm, the rods 19 cross one another as shown in Fig. 1.

The seat 21 for the operator is afiixed as at 22 to the platform 8 and positioned almost directly over the wheel 14 that the weight of the operator may be borne solely by said wheel and not by the harrow sections 1.

In practice, and assuming that the wheel 14 has. come in contact with an obstruction in the field-bed, it is apparent that the cart 5 may move laterally without causing the harrow sections 1 to move therewith. The moment the wheel 14 contacts with such obstruction, said wheel is swung at an angle toits supporting frame and against tension of the springs 20 connected to the arm 18. The moment the wheel shall have passed the obstruction, springs 20, by reason of their equalizing effect, will return the wheel to its normal position or to the position indicated in Figs. 2 and 3.

7 side longitudinal members,

From the foregoing, taken in connection with the accompanying drawings it will be observed that jolts and jars incident to op eration will be materially reduced; that the supporting wheel may move at an angle to the frame when its direct forward movement is impeded only to be returned to its normal position, the moment the obstruction shall have been passed; and that'by extending the springs 20 at the angle shown, a greater and more direct pull upon the arm 18 is obtained. 7

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is 1. In a harrow cart, a frame including spaced transversely at their forward ends and connected by a frame bar, said side members converging'rearwardly and provided at the rear portion with a supporting wheel mounted upon a vertical. shaft whereby rotation of the wheel about horizontal and vertical axes is provided, resilient elements for resisting the rotation of said shaft in either direction, and harrow elements disposed beneath the frame and connected to said forward transverse frame bar.

2. In a harrow cart, a frame including longitudinal side members spaced at their forward extremities and connected by a transverse-frame bar, said side members converging rearwardly and provided at said rearward portions with a supportingwheel mounted in a bracket, having a vertical axis journaled in the frame, whereby said wheel may rotate about horizontal and vertical axes, a transversely extending bar connected at its intermediate portion to the shaft, cross springs secured at their forward ends to a rigid portion of the frame, and at their lower rear ends to the extremities of the bar, whereby rotation" of said wheel in a horizontal plane is resisted in either direction, and harro'wframes disposed beneath the frame, and connected to the forward transverse bar. 1

3. In a harrow cart, a frame including longitudinal side members, spaced at their forward ends and connected by a transverse frame bar, said side members converging rearwardly and formed with rearwardly extending parallel portions connected at their extremities with a transverse frame bar, transverse struts connecting the parallel members, a longitudinal casting connecting the rear transverse bar and one of the transverse struts having a bearing portion to receive a vertical shaft, an inverted U-shaped bracket supported at the lower end of the shaft, a supporting wheel mounted for rotation in said U-shaped bracket, a transverse arm connected at its intern'iediate portion to the upper end of the shaft, coil springs connected to the extremities of the arms, extending forwardly in crossed relation, and connected to a rigid portion of the frame, and harrow frames disposed beneath the main frame connected to the forward transverse bar.

4:. In a harrow cart, a frame, a casting comprising a shank journaled in a bearing therefor rigid with the f *ame and an inverted U-shaped member mounted for turning movement relatively to the frame, a supporting wheel carried by said member, an equalizer arm rigid with the shank, and means including transversely disposed springs mounted to engage with the respective arm terminals and with the frame to yieldingly maintain said casting and the wheel carried thereby against movement in the manner stated.

In testimony whereof I afiix my signature in presence of two witnesses.

MURL DE WI T.

Witnesses:

A. M. MASON, O. D. Dnwrr'r.

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

- Washington, D. G.

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