US1043277A - Mounting for plows. - Google Patents

Description

I; A. WEAVER.

MOUNTING FOR PLOWS. v APPLICATION FILED MAB.15, i912.

Patented Nov. 5, 19.12.

Qumran snares earner oration.

IRA A WEAVER, OF SPRINGFIELD, ILLINOIS. ASSIGNOR T0 RACINE-SATTLEY COM- PANY, OE SPRINGFIELD, ILLINOIS, A CORPORATION OF ILLINOIS.

MOUNTING FOR FLOWS.

imae'rv.

Specification of Letters Patent.

Patented Nov. 5, 1912.

Application filed March 15, 1912. Serial No. 683,923.

To all whom it "may concern.

Be it known that I, IRA A. IVEAVER, a citizen of the United States, residing at tlpringfield, in the county of Sangamon and State of Illinois, have invented certain new and useful Improvements in Mounting for Plows, of which the following is a specification.

My invention relates to mountings for plows, and has more particular reference to improvements in the standards and breakpins of plow mountings for use principally in engine-driven plows.

The principal objects of the present in vention are to provide a plow mounting in which the point of the plow-share is readily adjusted for depth; secondly, to provide a break-pin in such mounting for preventing injury to the plow when unyielding obstructions are encountered in service; thirdly, to provide a plow mounting by whichthe'plowshare may be' readily turned ups1de-down for convenience in application or repanr, and, fourthly, to provide a plow standard invertible as above indicated which, together with the plow-sharethereon, may bereturned to the original plowing position without altering the adjustment.

Other objects will appear hereinafter.

The invention will behest understood by reference to the accompanying drawings forming a' part of this specification, 1n

. which Figure l is a side elevation of a preferr d embodiment of these improvements, the dotted lines showing the position of the plow when inverted, the front beam being re" moved for the better illustration of the pinblock. This view and that of Fig. 2 are taken on the line 1---1 of Fig. 3. Fig. 2 is a similar side elevation, the dotted lines indisating the osition of the plow-share and thebreak-pm block just after the plow has encountered an obstruction sufficiently nnyielding to shear the pin, and Fig. 3 is a top plan showing the several parts clamped between the Q-part draft bar or plow beam.

The standard 10, to which is secured the plow-share 11, is pivotally mounted between the arms of the two-part or bifurcated plow beam 12 by n'ieans of the through-bolt 13. The standard 10 is formed with a depression in its upper edge adapted to engage thestopolt' 14, whereby the forward and uptilt-mg movement of the point of the plow-share is 'Fig. 1 it will be seen that this stop-bolt 14: also limits the rotative movement of the standard in the opposite direction. A forwardly projecting end 15 upon the standard 10 is vertically recessed and tapped for the accommodation of the adjusting screw 16. The pin-block 17 comprises preferably a casting or stamping'having a rearward projection l7 and an upstanding projection 17". This block is loosely held between the two arms of the plow beam 12 by the through-bolt 1S, a'slot 19 in the block pern'iitting a forward and backward movement thereof. The projection 17 is transversely apertured for the accommodation of the brealcpin 90, which is preferably made of wood of suitable thickness and toughness to withstand a predctcrmincd strain.

From the foregoing it will be readily un dcrstood that when it is desired to raise or lower the point of the plow-share it is only necessary to turn the screw 10 in one direction or the other, and that having made an adjustment of the plow-share as dcsirtahthis :ulj-ustincnt will remain constant and fixed until intentionally changed. It. is plain from the drawings that the required resist' ance to the downward tendency of the screw l6 during the plowing action is resisted by the pin-block l7, \VlllCl'l, in turn, is supported in its substantially horizontal position by means of the brealcpin 20 contacting thouppcr surface of the plow beam 12. It will now be understood that when the plowshare encounters an. obstruction which is sul'liriently unyielding to cause a breakage limited. By reference to the dotted lines of of the plow-share, standard or other part of the plow, the pin 20 will be broken through the shearing action of the pin-block and plow beam, and that thereupon the block will fall or be forced out of contact with the screw 16, whereupon the point of the plow, being still held by the obstruction, will turn to the position shown by the dotted lines in Fig. Qand be released, the plow as a whole still traveling forward. In order toreadjust the plow-share for further plowing it is only necessary to swing it forward into plowing position, raising the pin -block, or stopblock, as it may also suitably be called, until it contacts the screw 16, and lock the parts together by the insertion of a new break-pin. The plow-share can thus be put into plowing position Without appreciable loss of time,

and without any thought as to the degree of elevation or loweiripg of its point, the adjustment of the screw 16 remaining unchanged.

5 Should it be desired to remove or repair the plow-share, the stop-block may be easly moved, through its pin-and-slot mounting, out of the path of travel of the adjustlng screw 16 and the plow-share inverted as shown by the dotted lines of Fig. 1. WVhen, the repairs are completed the standard and plow-share may be readily returned to their plowing-positions, and, when the pin-block is moved into contact with the screw 16 plowing maybe begun without any adjustment of the plow-point, the adjustment of the screw' 16 not having been altered.

While there is illustrated and described herein a preferred embodiment-of the present improvements, it will be evident'to those skilled in the art that many changes in the construction andarrangementof parts may be made without departing from the spirit or scope of this invention.

I claim 1. In a mounting for plows, the combina- -tion of a plow-beam, a plow-standard pivotally mounted thereon, a plow-share on said standard, a stop on said plow-beam adapted to be moved into engagement with said standard and thereby hold said plow-shard in plowing position, said stop being adapted to be me ed out of engagement with said standard, thereby permitting the plow-share and standard to be rotated into inverted position, substantially as described,

2. Ina mounting for plows, the combination of a bifurcated plow-beam, a plowstandard and a break-pin block pivotally 40 mounted betweenathe arms of said plowbeam, said block being slotted to permit longitudinal movement thereof and having a break-pin aperture, a break-pin in said aperture and contacting said plow-beam, an

45 adjusting screw in said standard for raising nnd'lowering the point of said share, sai

screw being arranged to bear against said block and maintain said share in plowing position, said pin being adapted to break under a strain less than sufficient to break said share or standard and thereby automatically .release said share from plowing engagement with the ground, said block beirig also adapted to be movedv manually out of engagement with said screw whereby the standard and share may be raised to inverted position on said plow-beam, substantially asdescribed.

3. In amounting for plows, the combina- 60 tion of a plow-beam, a plow-standard pivotally mounted thereon, a plow-share on said standard, means for manually adjust-- ing the inclination of the point of 'said share and for holding the same in plowing position, said means being adapted to release said share from plowing engagement with the ground when said share encounters a resistance likel to break said share or standard, substantlally as described.

4:. In a mounting for plows, the combination of a plow-beam, a plow-share, a standard movably mounted on said beam and con'' stituting a support for said plow-share, a stop-block against which said standard bears, a break-pin associated with'said stopi5 block adapted to break and release said block and plow-share under abnormal plowing strains, and a mounting for said block permitting the latter to be readily shifted out of cooperative relation to said standard without removal of said break-pin, whereby the standard and plow-share may be moved relatively to said beam to permit the ready replacementor repair of the 'plowehare, substantially as described.

5. In a mounting for plows, the eombina tion of a plow-beam, a plow-share, a stand: ard -hinged on said beam and constituting. a support. for said plow-share, a stop-block against which said standard bears, a break pin associated with said stop-block adapted to break and release said plow-share under abnormal plowing strains, and a pin-and-slot mounted for said block-on said beam permitting said block, by turning'on said pin when the break-pin breaks, to release said plow-share, and'also permitting the block to be readily shifted out of cotiperative relation to the standard without removal of the break-pin, whereby the standard andplowshare may be swung on their hinge connection with the plow-beam, to permit the ready replacement and repair of said plow-share, substantially as described.

6. In a mounting for plows, the combina-, tion of a plow-beam, a plow-share, a standard hinged on said beam and constituting a support for said plow-share, a stop-block, a pin-and-slot mounting for said block on said beam, a break-pin associated with said stop-block and adapted to break under abnormal plowing strains, and means between said standard and block which-impose the plowing strains on said block and constitute a means for adjusting the point of the plow, substantially as described.

- IRA A. 'WEAVER.

Witnesses: H. E. JABUsoH, W. S. WOMACK.

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