US670093A - Cultivator. - Google Patents

Description

Patanted Mar. I9, |901.

D. E. BABTGN.

GULTIVATGE.

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(No Model.)

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@Nimah Strains DELBERT E. BARTON, OF MINNEAPOLIS, MINNESOTA.

CU LTIVATO R.

SPECIFICATION forming part of Letters Patent No.'670,093, dated March 19, 1901.

Application led December l0, 1900. Serial No. 39,321. (No model.)

To @ZZ whom t may concern:

Bc it known that 1, DELBERT E. BARTON, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Oultivators; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to cultivators and other tillage-machines, and has for its especial object to provide certain improvements in the devices for suspending' the drag-bars and gangs of shovels or other tillage devices.

To this end my invention consists of the novel devices and Acombinations of devices hereinafter described, and defined in the claims.

The invention is illustrated in the accompanying drawings, wherein like notations refer to like parts throughout both views.

In said drawings, Figure 1 is a vertical longitudinal section showinga cultivator equipped with myimprovements,some parts being omitted and others broken away; and Fig. 2 is a detail in section on the line m2 x2 of Fig. 1.

The fixed or main frame 1, the arch 2, the supporting-wheels 3, the drag-bars 4, coupled to the main frame for vertical and lateral pivotal motion, the pivoted mast 5, the connecting pipe or bar 6, with its arm 7 engaging the claw or hook at the upper end of the mast, the hand-lever 8, pivoted to the arch 2 and having an arm 9, connected to the cross-rod 10, carried by the brace-rods 11, which connect the same with the fixed frame 1, and the lock-segment 12 for cooperation with the lever 8 are all of the ordinary standard construction and serve the customary functions.

Having regard now to my improvements, I provide a two-armed rocker 13 and pivot the same to the fixed frame' 1 in advance of the pivoted mast 5. This rocker 13 is connected with the mast 5 by three flexible connections marked, respectively, 111, 15, and 16. The upper or top connection 14 to the mast is shown as in the form of a chain and bail hook and as connecting the upper end portion of the rocker 13 with the upper end portion of the pivoted mast in any desired adjustment, according to the position of the bail-hook thereon. The two bottom or lower end connections 15 and 16 are convergent and connect the opposite ends of the rocker 13 to the lower end portion of the pivoted mast 5, the connection to the mast being made on a common center d. As shown, the connection to the mast 5 is made by means of a double hook 17, which is pvoted to the mast and the hook ends of which engage with the inner ends of t-he convergent connections 15 and 16. The pivoted hook 17 may be applied to the mast 5 at any one of several different points of adjustment. One of the two lower or converging connections 15 and. 16 must be elastic, and the elastic connection can occupy either position, accoi-ding to whether the top connection 14 takes hold of the upper or the lower end of the rocker 13. As shown, the top connection 14 from the mast 5 takes hold of the upper end of the rocker 13, and hence the elastic memberof the two bottom connections connects the mast with the lower end of the rocker. As shown, the elastic connection 16 is in the form of an open-ended compressed spring, and the connection 15 is in the form of a chain, adapting the same to have any of its links engaged with the pivoted hook 17, thereby affording a means for adjusting the tension on the elastic member or spring 16.

the strains which come from the drag-bars or shovelfgangs will be yieldingly taken on the elastic member or spring 16 and in line with t-he axis thereof. When the machine is at work, for example, the parts will be in the position shown in full lines in Fig. 1, and in said workin g position the drag-bars or shovelgangs are of course suspended from the pivoted mast 5, and said mastis held by the parts 13 to 17, inclnsive,with freedom to move yieldingly backward Whenever any special strain comes onto the shovels. For example, suppose that some of the shovels should run under some fixed obstruction, like a root, stump, or stone, or engage under a piece of tough sod, turf, or hard ground. Then a downpull will be produced on the shovels and rear ends of the drag-bars under the forward draft from the animals, and the strain will be taken over the chain 14, the rocker 13, the spring 16, and the hook 17 and the strain so taken on the ICO springr 1 6 being applied thereto over the lower end of the rocker 13 will be taken endwise of the spring, on the axial line thereof, just as the balancing strain is taken when the parts are in their normal working: positions, as shown in full lilies in Fig. 1. When the top of the rocker 13 moves backward from the downpull on the shovels, the chain 15 of course slackens and the spring 16 is set under increased tension. When the shovels are disengaged from whatever caused the downpull,the spring 16 will automatically restore the parts to their norrnalor balanced working position. `When the parts are raised into their idle position, as shown in dotted lines in Fig. 1, the distended spring 16 will contract, thereby throwing the upper arm of the rocker 13 forward and applying the tension of the spring over the chain 15 and through the hook 17 to the pivoted mast 5, thereby causing the spring 16 to assist in the lifting action for raising the drag-bars at all points of the motion. If the parts 15 and 16 should be reversed in p0- sition and the top connection 14 from the mast be connected to the lower end of the rocker 13,1;he general action would be the same in its effect on the drag-bars and shovels; but the rockerl would take the reverse motions in point of time or order, as compared with those above described, as incidental to the positions occupied by the said parts 14, 15, and 16, as shown in the drawings.

By actual usage I have demonstrated the efficiency of the invention herein disclosed for the purposes had in View.

When the drag-bars are raised into their idle position, as shown in dotted lines in Fig. 1, the pivoted mast 5 rests against a suitable stop 18, which is shownin Fig. 2. The kicko is not shown.

Vhat I claim, and desire to secure by Letters Patent of the'United States, is as follows:

1. In a tillage-machine, the combination with a pivoted drag-bar and pivoted mast with a pivoted drag-bar and a pivoted mast from which the drag-bar is suspended, of a two-armed rocker pivoted to the frame, an upper fiexible connection from the upper end portion of the mast'to one end of the rocker, two lower end flexible connections extending from opposite ends of said rocker, and a hook pivoted to the lower end portion of the mast and engaging with the convergent ends of said two lower end connections, one ot' which lower end connections is elastic and takes hold of the rocker 13 at the end opposite to the topconnection,substantially as described.

3. In a tillage-machine, the combination with the pivoted drag-bar and the pivoled mast from which the drag-bar is suspended, of the pivoted rocker 13, the top flexible connection 14 extending from the upper end of the rocker 13 to the upperend portion of the mast, the chain 15 and the spring 16 extend ing from opposite ends of the rocker 13, and the hook 17 pivoted to the mast 5 and engaging the convergent ends of said parts 15 and 16, substantially as described.

In testimony whereof I ai-x my signature in presence of two witnesses.

DELBERT E. BARTON.

Witnesses:

M. M. McGRoRY, F. D. MERCHANT.

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