US302481A

US302481A - Sulky-plow

Info

Publication number: US302481A
Authority: US
Publication date: 1884-07-22
Anticipated expiration: 1901-07-22

Description

(No Model.) 2 Sheets-Sheet 1.

T. HANCOCK.

SULKY PLOW.

No. 302,481. lPacen'ted July .221, A1881.1.l

2 Sheets-Sheet 2.

(No Model.)

M. T. 112188088.r

' SULKY PLOW.

No. 802,481. Patented July 22, 1884.

NITED STATES PATENT OFFICE.

MILTON TAYLOR HANCOCK, OF THOMASVILLE, GEORGIA.

suLKY-PLOW.

SPECIFICATION forming part of Letters Patent No. 302,481, dated July 22, 1884.

Application filed April 26, 1884. (No model.)

To all whom, it may concern: Be it known that I, MILTON TAYLOR HAN- COCK, a citizen of the United States, residing at Thomasville, inthe county of Thomas and State of Georgia, have invented new and useful Improvements in Sulky-Plows, of ywhich the following is a specification.

My invention relates to the construction of sulky-plows; and the objects of my improvements are, first, to enable the plowman to raise or lower the plow proper at pleasure, and ink so doing to back the plow-blade out of an obstruction-as, for instance, when it shall have become fastened under a root, stone, Src.; second, to improve the construction of devices for regulating the angle of plow-draft in the ground to obtain a wider or a narrower furrow; and, third, to improve the construction of seatframe, especially with reference to its nearness to lifting-lever. I obtain these objects by the constructions hereinafter described, and shown in the accompanying drawings, in which- Figure l represents in side elevation a sulkyplow embracing my improvements, one wheel being removed', Fig. 2, a similar view with the plow proper raised; Fig. 3, a rear elevation; Fig. 4, a detail in perspective of the breast-yoke and tongue or pole; and Fig. 5, a detail showing the brace-connection with the axle, the lever, and the plow-beam.

In these drawings, A is the bent axle, having one arm of different length from the other for the well-known purpose of keeping the sulky level while one wheel is in the furrow. To this axle the pole is clipped in any suitable manner. In the example shown it is fastened by a staple-bolt, a. Theplow-beam B is suspended upon a pivot, b, within abent forked lever, C, to the rear of the axle, in such manner as to have the draft applied to its clevis c independent of the guiding-pole D. This lever C is fulcrumed on and embraces the axle close to the pole, and is held to such position by a screw-clamp, d, on the axle immediately to the right of the lever. Upon the left of the pole there is a brace, E, held byascrewclamp, e, on the axle from extending farther along on the axle to the left than is desired. The axle passes through this brace at thetop loosely, while its other end is secured to and swings with the lever which carries the plowbeam' by the pivot-bolt Z1, which acts also in the fork of the lever as a pivot for the plowbeam. The bent forked lever G, fulcrumed as described, is controlled to hold the plow at any height by a semiciroular rack,F, upon the pole. It is released from the rack, in a wellknown manner, by the operation of a springcatch lever, g, attached to its handle, and readily actuated by the plowman at the time he Operates the lever.

The seat-frame G consists of a single L-bar fastened at one end to the top of the rack F and at the otherto the axle. A suitable brace, K, connects with pole and axle.

I provide a means for determining the angle of cut ofthe plow for making wider or narrower furrows, consisting of an attachment for the pole breast-yoke. The middle part of the breast-yoke I is squared, say, for. about fifteen inches. To this squared or flattened part is bolted a wrought-iron piece, H, so shaped that it will come in contact with two flattened sides of the yoke, and have a third part at right angles to the yoke. This latter part or upward projection, Z, hasfiveholesor more, m, through whichthenose n of the sulky-pole is caused to pass-any one, according to the angle of out desired. The advantage of this is that the plow may be regulated by changing the pole from one hole m to another, as, if the plowman wishes to cut a very narrow furrow, he puts the pole in the first hole m to the right, and for changing the width he may put it suc cessively in the other holes toward the left.

By the construction of lever C and the described connections with the plowbeamB the operator is not only enabled to raise andlower the plow for the purposes of regulating the depth of cut, and for taking the cultivator to and away from the field, but by reason of such construction the plow is caused to move backward-as it is raised-by the lever crank-arm C', thus rendering it possible to withdraw it readily when caught under obstructions-that is to say,the plow first backs to free itself before it rises.

The seat-frame described braces the semicir.-

-cular rack,which forms a part of the said seatshould be oi' wrought-iron. Any suitable plow proper is attached to beam.

I claiml. The combination of the bent axle A and the plow-beam with the forked lever O, fulcrunied upon the axle, having the plow-beam pivoted at b to its lower bent end, O', and provided at its upper handle end with a spring catch, g, and the rack F, arranged upon the tongue, whereby the plow is adjusted, supported in working position and backed horizontally out of an obstruction before raising the beam, as shown and described.

2. The combination, withthe pole of asulkyplow, of a breast-yoke, I, provided with the wrought-iron attachment II, having a series of holes for receiving the pole-nose, whereby to regulate the width of furrow, substantially as set forth.

3. In a sulky-plow, the combination, with the forked bent lover. O, the axle A, and the plow-beam B, ofthe brace E, screw-clamps rl and e, and bolt b, substantially as and vfor the purpose set forth.

4. The combination, with the bent axle A, the pole D, and the bent lever O, fulerumed upon the axle, of the plow-,beam B, pivotcd to said lever, and the brace E, connected to the axle and to the lever, so as to brace and swing with both, as described.

5. In combination, the bent axle A, the lcver O, the plow-beam B, the brace E, the adjustable clamps d e, and the bolt b, the latter connecting the lever, the beam, and the brace, vfor the purpose specified.

In testimony whereof Ihave hereunto set my handin the presence of two subscribing witnesses.

MILTON TAYLOR HANCOCK.

Vitnesscs:

WV. T. TU RNBULL, DANIEL Prrorrronn.