US435867A - Cultivator - Google Patents

Description

(No Model.)

1. 8; B. STUART.

GULTIVATOR.

N0. 43 6'7. Patented Sept. 2, 1890.

tlrtTTsn TATES PATENT @rricn.

ISO STUART AND BRONICK STUART, OF NOLANVILLE, TEXAS.

CU LTIVATO R.

SPEGIFICATION forming part of Letters Patent No. 435,867, dated September 2, 1890.

Application filed June 12, 1890. $erial No. 355,231. (No model.)

To on whom it may concern.-

Be it known that we, ISOM STUART and BnoNIoK Sr UART, citizens of the United States of America, residing at Nolanville, in the county of Bell and State of Texas, have invented certain new and useful Improvements in Cultivators; and we do hereby declare the following to be a full, clear, and cxactdescription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention has reference tocultivators; and it consists in the improvements hereinafter described and set forth, whereby an efficient and durable plow is provided that will be capable of light draft and the working depth of the plow or plows readilycontrolled at all times.

In the accompanying drawings, forming part of this specification, Figure 1 is a side view, and Fig. 2 a plan view, of a plow enibodying our improvements.

The curved standards A A, located at each side in different longitudinal planes, carry the front and rear plows l3 l3, and said standards are horizontally extended at their upper ends to form the side bars a a of the plowframe, which at their forward ends are bent inwardly and then parallel to form portions 1) l1, between which the tongue C is bolted. The tongue 0 has a vertical bolt 0 seated therein adjacent to its front end, upon which is pivotally secured a vertical clevis D, having a vertical series of perforations, in 'one of which the draft-loop d is pivotally secured.

The handle-bars E E are bolted at their forward ends to the sidebars a a of the frame, and are supported and braced in the rear of said connection by outwardly-inclined braces c c, secured to the frame and to the inner sides of the handle-bars. A transverse horizontal brace F has its ends bent vertically to bear against the inner sides of and be secured to the rear portions of the handle-bars.

A vertical forwardly--curved plate G is secured at its base in the inner side of the bar a of the frame adjacent to the standard A, and said plate is embraced by a rod f, secured to its upper end and to the bar a. The said plate G is provided with a vertical series of perforations, at one side of which is a vertically-elongated slot g, through which passes a longitudinal lever ll, inclined, as shown in Fig. 1, and pivotally secured at its forward end to a bracket 71., bolted on the frame, while at its rear end adjacent to the handle portion thereof is pivoted a bell-crank lever '1, pivotally connected with a longitudinal rod j, playing through an car on the side of the lever I-I,

- and carrying at its end a bolt 7a, adapted, by

reason of a spiral spring surrounding the rod j and seated between the bolt and ear, to normally hold said bolt in engagement with one of the perforations of the plate to lock the lever H in any of the several positions to which it may be moved. Pivotally attached to the lever l-Lbetwceu the plate G and the forward pivot-al connection of said lever, is a depending bar I, the lower end of which is perforated for the bearing of one of the spindles of the carrying-wheel J, the other spindle of thelatter bearing in one end of a link Z, the other endof whichisph otally connected to the lower end of a depending bar K, rigidly secured at its upper end to the bar a of the frame.

It will be quite obvious that by raising and lowering the lever H the fixed and pivotal suspending devices at the respective sides of the wheel will result in the latter moving downward or upward and change its horizontal position so as to vary the depth at which the plows are supported, and hence control the working depth of the same at all times. As will be seen, the disposition of the leverand locking devices is such that they are not liable to be affected by the strain exerted on the plows. Moreover, the general arrangement and construction of the parts is such that a very light draft will only be necessary to pull the plow.

1. The combination, in a cultivator, of the main frame, the horizontal lever ll, pivotally secured as described, locking devices therefor, a vertical bar pivotally secured to said lever, the carrying-wheel having one of its spindles bearing in the lower end of said vertical bar, together with a fixed bar having a pivotal dependi g link, in the lower end of which the other spindle of said wheel bears, substantially as set forth.

suspended from said lever, and a carrying-' wheel having one of its spindles bearing in- 10 the lower end of the bar, together with adepending bar secured rigidly to the frame and p WVitnesses:

' J. Y. WALKER,

H. J. POTTER.

having a pivotal depending link, in the lower end of which the other spindle of the carry ing-wheel is seated, substantially as set forth.

In testimony whereof we afiix our-signatures r 5 in presence of two witnesses.

ISO STUART. BRONIGK STUART.

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