US1277016A - Plow-stock. - Google Patents

Description

C. M. WINDHAM.

PLOW STOCK.

APPLICATION FILED IIINE ao. I9Is,

1,277,015. n Patented Aug. v7, 191s.

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INVENTOR wITNEssEs M ATTORN EY CALVIN IVI. WINDHAM, OF LAMAR, SOUTH CAROLINA.

PLOW-STOCK.

Specification of Letters Patent.

Patented Aug. 27, 1918.

Application led June 3D, 1916. Serial No. 106,912.

To all wwm t may concern:

Be it known that I, CALVIN M. VINDHAM, citizen of the United States, residing at Lamar, in the county of Darlington and State of South Carolina, have invented certain new and useful Improvements in Plow- Stocks, of which the following is a speciiication.

This invention relates to plow stocks and has for its object to provide an improved agricultural implement of this class in which the plow or mold board standard is pivotally connected to the beam, and has means whereby it may be angularly changed with relation to said beam and after such change to be tightened in order to hold the same firmly in adjusted position.

In the accompanying drawings:

Figure 1 is a side elevation of a portion of the rear of a plow with my invention applied thereto;

Fig. 2 is a horizontal sectional view on the line 2 2 of Fig. 1; and

Fig. 3 is a vertical sectional view on the line 3 3 of Fig. l.

In the drawings, 10 indicates the plow beam which may be made of wood or metal as desired, and when made of metal, the same may comprise two members 11 and 12 suitably secured together-and to which the handles 13 are attached and supported by braces 14. Between the members 11 and 12 of the plow beam is pivoted the plow standard 15, which may also be made either of wood or metal, and when made of the latter material is made double, the two portions being in contact at their upper ends andk connected to the plow beam by a. pivot bolt 1G. The parts forming the metal standard are spaced a short distance from each other at their lower ends, as at 17, and within this space projects the hooked end fastening' bolt 35 of the plow share 36, a portion only of which is shown.

Pivoted to one side of the standard l5, and when made of metal between the parts thereof in the space 17 if desired, is an adjusting rod 18 having an eye 19 on its forward end through which a hinge bolt 20 passes to pivotally connect the bar to the standard. This rod has a slight upward curvature as it extends rearwardly and then continues in a straight line, Vthe straight portion being threaded as at 21.

Bolted to the plow beam 10 on the under side thereof in rear of the standard 15 is a bracket 22 having two downwardly depending ears 23 that are spaced a short distance apart, and each provided with a circular opening formed therethrough for the pas sage of the rod 18. Between the ears 23 is a wheel 24:, known as a jack wheel having a hub 25 projecting from each side and fitting between the two ears 23. Through the axis of the wheel 24 and its hub 25 is an opening provided with a screw thread that fits the threaded end of the rod 18 and when said wheel is turned, the rod 18 is caused to move horizontally either forwardly or rearwardly depending on the direction in which the wheel is rotated.

Extending downwardly from the beam l0 at the rearend thereof and parallel to the standard 15 are a pair of iat bars 26 parallel to each other and spaced a short distance apart, said bars being pivotedk by a bolt or rivet 10u to the plow beam at their upper ends and at their lower ends at 26@L to a horizontal subsoil plate 27, preferably of triangular shape with one edge 28 parallel with the beam 10 and forming a land side, while the opposite edge 29 is inclined from a point at the front, as shown. The forward end of the plate 27 is pivoted as shown to the lower end of the standard 15. The rear edges of the bars 26 are formed with a number of ratchet-teeth 30 with which a locking dog 31 on the mold board tightening lever 32 engages. This lever 22 formed of a straight bar as shown, on the forward end of which is a depending lug 37 through which is formed a perforation to receive a removable pin 3S adapted to fasten the forward end of the lever' 32 to the lower end of the standard 15. As shown, the lower end of the standard curves forwardly at its lower end and through the two parts thereof near the rear edge of the standard is formed a series of perforations 39 for the removable pin 38, whereby the pivotal end of the lever 32 may be adjusted to various heights above the ground in order to adapt the lever to engage by means of a hook 10 that extends upwardly above the lug 37 the hooked end 41 of the mold board fastening bolt 35. In securing a mold board in place, the latter is placed against the forward edge of the standard 15 and the bolt 35 thereof extended into the rspace 17 between' the parts of the standard and is there engaged by the hook 40 on the lever 32. After positioning the mold board to the proper height, the pivot pin 3S is passed through the opening in the lug 37 to secure the forward end of the lever 32 in pivotal engagement with the standard. Upon depressing the rear end of the lever 82, it is evident that the hook a() will d 'aw the bolt 35 rearwardly and press the mold board firmly against the standard l5, the parts thus described being held in position by means of a locking dog 3l on the rear end of the lever 32 engaging one of the series of teeth 30 on the standard 26. When it is desired to release the mold board, the operator grasps the hand-grip 33 on the lever 32 and pressing the pivotal portion of the dog 31 withdraws the latter from the teeth 30 and raises the lever, thus loosening the connection between the hook el() on said lever and the bolt 35 and at the same time loosening` the mold board so that it can, without diiiiculty, be removed from the standard l5.

lVhat l claim is:

l. ln a plow stock, the combination with a plow beam, of a plowshare supporting standard pivoted at its upper end directly to said beam, a threaded rod pivoted on said standard below the beam, a wheel-nut on said rod for moving the same and the standard forwardly and rearwardly on its pivot, and independent locking means for holding the standard in position after adjustinent.

2. In a plow stock, the combination with a plow beam, of a plow share supporting standard pivotally connected at its upper end to said beam, a threaded rod pivoted to the standard below the beam and extending rearwardly therefrom, a. bracket depending from the beam through which said rod iS adapted to slide freely, a. wheel-nut threaded on said rod bearing at each side against said bracket for moving said rod and the stand ard forwardly and rearwardly when said nut is turned in one direction or the other, and means distinct from said rod and nut for locking the. standard immovable after adjustment.

3. ln a plow stock, the combination of beam and a standard pivotally mounted at its upper end upon said beam, a depending bar pivotally connected to the rear end of said beam, a sub-soil plate pivotally connected to said standard and said bar, a rod pivotally mounted on the standard and extending rearwardly therefrom, said rod being threadedupon the rear end, a bracket depending upon the underside of said beam through which said rod is adapted to pass freely, and a wheel-nut threaded on said rod Jfor moving the same when turned to adjust the standard forwardly and rearwardly on its pivot, said wheel-nut being held by the bracket from moving longitudinally on said rod.

et. ln a plow stock, the combination of a beam and a standard pivotally mounted upon said beam, a bar depending from the rear end of said beam, a subsoil pla-te connected to said standard and said bar, a lever pivotally mounted at its forward end to said standard and having a hook on said end above itsl pivotal point, connecting means between said hook and the mold board, and locking means on the opposite end of said lever and adapted to engage said bar to hold said lever in position after moving the latter to tighten the mold board on the standard.

5. ln a plow stock, the combination of a beam and a standard pivotally mounted on said beam, a mold board adapted to .be secured to the front of said beam and having a rearward projection, a lever pivotally mounted at one end to said standard, said pivotal mounting being vertically adjustable on the standard, a hook projecting upwardly from the lever above the pivotal connection and adapted to engage the rear projection on the mold board, said lever serving when depressed to clamp the mold board to the standard. and means on said lever to hold the same in depressed position.

6. ln a plow stock, the combination of a plow beam and a plow standard pivoted to said beam and extending downwardly therefrom, a bar fastened to the rear end of said beam and also extending downwardly, a sub-soil plate fixed to said standard and said bar, :a rod pivotally connected to the standard and extending rearwardly therefrom, the rear end of said bar being threaded, a bracket depending from the underside of said beam and having two ears through which said rod passes freely. a wheel-nut threaded on said rod lbetween said ears and adapted when rotated to move Isaid rod longitudinally and with it said standard, a tightening lever pivoted at one end to said standard below the rod and engaging the mold board, and means on the opposite end of said lever adapted to en gage the vertical bar and hold the mold board tight against the standard.

ln testimony whereof l athx my signature in presence of two witnesses.

UALVN M. VINDHAM.

l.Witnesses R. L. SPEARS, G. C. YVINDHAM.

Copies of this patent may oe obtained for live cents each, by addressing the Commissioner of atents, Washington, U.

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