US1094598A - Hobble-arch for cultivators. - Google Patents

Description

R. P. RUTLEDGE, R. G. BOLAND & (I. A. DEVAULT.

HOBBLE ARCH FOB. GULTIVATORS.

Patented Apr. 28, 1914.

APPLICATION FILED SEPT. 25, 1912.

COLUMBIA PLANOGRAFH cu. WASHINGTON. D. c.

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ROBERT P. RUTLEDGE, EANDSOME G. BOLAND, AND JOHN A. DEVAULT, 0F SGRANTON, TEXA$.

HOBBLE-ARCH FOR CULTIVATOB-S.

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Specification of Letters Patent.

Patented Apr. 2S, 1914.

Application filed September 25, 1912. Serial No. 722,355.

To all whom it may concern Be it known that we, Bonner P. Rurnnnen, RANDsoMn G. BOLAND, and JOHN A. DE- VAULT, citizens of the United States, residing at Scranton, in the county of Eastland and State of Texas, have invented certain new and useful Improvements in Hobble- Arches for Cultivators, of which the following is a specification.

This invention relates to cultivators and has as its object to provide a novel hobble arch for riding cultivators, so constructed that it may be readily operated to laterally adjust the shovel beams of the cultivator.

It is customary to adjust the legs of a hobble arch through the medium of a hand wheel mounted upon a threaded shaft but such adjusting means requires considerable time for its operation and is liable to get out of order chiefly through stripping of the threads upon the shaft.

The present invention therefore has for its object to provide an extremely simple means for adjusting the legs of a hobble arch which adjusting means may be readily and quickly operated to secure the desired adjustment.

In the accompanying drawings: Figure 1 is a side elevation of the invention applied to a cultivator of a well known type, those elements of the cultivator which are not essential to an understanding of the present invention being omitted for the sake of clearness; Fig. 2 is a perspective view of the hobble arch and the adjusting means therefor detached from the cultivator; Fig. 3 is a detail sectional view through the pivot for the legs of the hobble arch.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

In the drawings, the frame of the cultivator is indicated in general by the reference letter F, the seat frame being indicated by the letter S and the seat by s. The shovel beams of the cultivator are indicated by the numeral 1 and are of the ordinary type, they being pivoted at their forward ends as at 2 to the frame F and being adapted to be swung laterally toward and away from each other in order to secure the desired adjustment. These beams 1 support the usual shovel standards 3.

The hobble arch embodying the present invention includes, as usual, a pair of crossed pivoted legs 4:, the pivot for the legs being indicated at 5. At their lower ends the legs t are pivoted as at 6 in brackets 7 which are swiveled as at 8 one to each of the beams 1. At this pointit will be understood that, as in the ordinary hobble arch, the spreading of the lower portions of the legs 4 of the arch will serve to swing the beams 1 away from each other and movement of the lower ends of the legs toward each other will serve to correspondingly adust the said beams. A bracket 9 is provided with an attaching ear 10 through which is secured the pivot bolt 5, the bolt passing through an opening 11 in the said ear and being provided with a nut 12 which may be tightened for the purpose of holding the bracket 9 firmly in place. The bracket includes an upstanding arm 13, the purpose of which will be presently explained. A bracket 14- is provided with an attaching ear 15 through an opening 16 in which the pivot bolt 5 extends, the bolt passing also through a sleeve 17 which fits within openings 18 formed in the intersecting portions of the legs 4: of the arch, it being under stood that by the provision of this sleeve, the nut 12 may be tightened upon the bolt without binding the legs and without preventing their free swinging movement, although the brackets 9 and 14.- will be riglolly held in proper position. The bracket 14 1s formed or provided with an upstanding rack bar 19, the teeth of which are indicated at 20.

The desired adjustment of the legs of the hobble arch is secured by a lever 21 pivoted as at 22 at the upper end of the arm 13. This lever is broadened at a point ad acent its pivoted end and is formed in its broadened portion with a slot 23 which receives the rack bar 19. The usual locking bolt 24: is mounted upon the lever and is held by the usual spring 25 with its end engaging with the teeth 20 of the rack bar and a small hand lever 26 is provided upon the lever 21 and is connected with the bolt 24- and operable to retract the bolt whereby to permit of adjustment of the lever. The lever between its slot 23 and its pivot 22 is formed with oppositely laterally projecting ears 27, a link 28 having one end bent at right angles as at 29 and its said end fitted in an opening in one of the ears 27 and its other end bent at right angles as at 80 and fitting in an opening in the upper end of the adjacent one of the legs of the hobble arch. It will now be apparent that when the lever 21 is swung upwardly upon its pivot, the upward pull exerted upon the links 28 will serve to swing the upper ends of the legs 4: toward each other which will result in a corresponding movement of the lower ends of the legs and in an adjustment of the shovel beams 1 toward each other. In order to spread the beams 1 it is only necessary to swing the lever 21 downwardly.

From the foregoing, it .will be seen that there is provided an extremely simple though highly efficient adjusting means for a hobble arch of the type mentioned and an adjusting means which may be readily and quickly operated and which will not be liable to accidentally get out of adjustment.

Having thus described the invention, what is claimed as new is:

1. The combination with the relatively adjustable beams of a cultivator, of crossed pivot legs connected to and supported by the beams, brackets arranged in front and in rear of the legs and each having an attaching car through which passes the pivot for the legs, the said pivot constituting the support for the brackets, the forwardly extending bracket having an upwardly extending arm and the rearwardly extending bracket being provided with an upwardly and forwardly curved rack, a lever pivoted at the upper end of the said arm and extending between the upper ends of the legs and having aslot receiving the said rack, the lever between the legs being provided with laterally projecting ears, links pivoted to the ears and to the upper ends of thesaid legs, a pawl slida bly mounted upon the lever and arranged for cooperation with the said rack, and means for moving the pawl.

2. The combination with the relatively ad justable beams of a cultivator, of crossed legs pivotally connected intermediate their length, a pair of substantially L-s'haped brackets, apertured ears formed on the horizontal portions of the brackets and adapted to'receive the pivots of the legs, the vertical portion of the rearward bracket being toothed to serve as a rack-bar an ad ustm 0 7 n lever for the legs, said lever having its forward terminal pivoted to the vertlcal portion of the forward L-shaped bracket,

a yoke formed integrally with the lever and adapted to receive the rack bar, means carried by the lever and coacting wit-h the rack bar for holding the lever in adjusted position, and a pair of link members connecting the upper terminals of the legs to the lever at a point approximately midway between the terminal of the lever and the yoke.

The combination with the relatively adj ustable beams of a cultivator, of cross legs pivotally connected intermediate their length, a pair of L-shaped brackets constituting a pivotal frame for the legs, a lever pivoted to the vertical portion of the forward bracket, links connecting the lever intermediate its length with the upper terminals of the legs, rack-bar teeth formed in the vertical portion of the rear bracket, and

a spring-pressed locking pawl carried by the lever and engaging with the teeth of the rear bracket for holding the legs in adjusted position.

4;. The combination with the relatively adjustable beams of a cultivator, a pair of pivotally connected to one of the brackets and freely connected intermediate its length to the upper terminals of the legs, and a spring-pressed looking pawl carried by the lever and engageable with rack-bar teeth formed in the other of said brackets, .whereby the-legs may be held in adjusted position."

' In testimony whereof we affix our signatures in presence of two witnesses.

ROBERT P. RUTLEDGE. L. 8.] RANDSOME e. BOLAND. a s] JOHN A. DEVAULT. [1,. 3.

Witnesses:

GE. ANDREWS, J R. ANDREWS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D} C.

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