US2637257A - Reversible plow - Google Patents

Description

C. W. BETZ REVERSIBLE PLOW May 5, 1,953

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atented May 5, 1953 UNITED STTESJ PATENT OFFICE REVERSIBLE PLOW' Gharley W. Eetz, Collinsville, Ala.

Application April 12, 1948, Serial No. 20,409

3. Claims.

This invention relates to plows and it is a primary object of. the invention to provide a plow that is reversible at will so that it may efiiciently turn the furrows to either side, as desired.

Another object of the invention is to provide means, whereby, when the position of the plow is reversed, it will automatically reverse the direction of the plow feet, to assure the proper positioning for operation thereof.

And another object of the invention is to provide efficient means to retain. the plow shaft. in either position with no danger of accidental slipping and further provide means to enable the shaft to be readily released from such retention for reversal thereof.

Yet another object of the invention is to provide a plow that is light in construction, durable in nature, economical in manufacture and capable of operating at maximum efficiency.

With these and numerous other objects in view,

the invention consists in the novel features of construction, combination and arrangement of parts as will be hereinafter referred to and more particularly pointed out in the specification and claims.

In the accompanying drawings:

Figure 1 is a plan view of the reversible plow of the invention;

Figure 2 is a side elevation of the invention;

Figure 3 is a vertical section taken substantially along the medial line of the device;

Figure 4 is a fragmentary plan view of the plow illustrated in Figure l, but in reverse position; and

Figure 5 is a transverse vertical sectional view of the device, upper portions of draw arms being omitted.

Referring to the figures, the plow of the invention is indicated generally at it and includes a plow frame or support l2 having reversibly mounted therein a plow shaft or beam M.

Frame 12 is of a substantially figure 8 shape including grooved sides it, a convex front end [18 and a rear end 20. Frame 12 is arcuately slotted at each extremity thereof at 22 and 2t for a purpose to presently become apparent. A pair of angulated clevis arms 26 are secured at the side of rrame l2 at the forward or convex end It! by suitable means such as bolts 28 or the like. gether as the part of the clevis for connection with a tractor or the like, not shown, to be drawn thereby when the device is in use. A second and smaller pair of draw arms 32 are similarly retained at 34 and are secured on frame A transverse pin 30 retains arms 26 to- 12-. at the grooved medial section IB by bolts 36 adjacent. to transverse support bar 38 spanning the frame [2. Bar 38' is retained on frame 12 by means of a vertical bolt 40 extending through frame l2, shaft [4 and lever 42, bolt 48 being retained in position by lock nuts M and washers it. Bar 33 is adapted to support plow beam M for pivotal movement. thereof.

Plow shaft it is apertured at each end and rotatably receives therein depending, reversible plow fee-t i3. Plow feet; 48 are retained in position by suitable bushings 50. and terminate in tapered ends: 2 and retain thereon plow discs 54. by means, of studs 56. Lever 42 terminates r short of the arcuate slotsv 22 and 24. and is pivotally connected to links 58 at each end thereof by means of pins 60, links 58 being secured at the other end of the upper extremity of plow feet $8 at e2. Lever a2 is slotted at the ends thereof at 83, adjacent the entry of pins fill in order to allow for the pivotal travel of links 58. It is to be noted here that plow feet 38 extend through slots 22 and 2 5 and when lever 62 is pivoted so that the plow beam I4 moves from the dotted line position of Figure l to the dotted line of Figure 4, links 58 pivot on pins Bil to reverse the position of plow shares 54 asis clearly illustrated and thereby cultivate the soil from the opposite side.

A pair of lateral lugs 64 containing vertical pins 66 are mounted on the front end of frame 12 and are adapted to serve as the stop and retention means of a U-shaped rod 68 pivoted at if! on a lateral ear 12 extending beyond frame I2 and integral with plow shaft It. Rod 68 is apertured at "M to receive pin 66 in order to be retained in one of the two adjusted positions. A handle it is provided to enable the farmer to unseat rod 68 from engagement with stop fi l when it is desired to reverse the position of discs t l.

Referring to Figures 1 and 2, a furrow wheel iii containing spokes i8 is mounted on the rear of frame l2 and is adapted to embed the earth and run on newly-ploughed ground. Hanger ilii rotatably retains wheel 16 in position by means of transverse shaft a2, hanger 8!] being secured to a rear flange M on frame I2 by means of pivot pin 36. Furrow wheel i6 is lowered into position by actuation of hand lever 88 pivotally mounted at as on a toothed segment 92 secured on frame l2, lever 38 operating rod 94 pivotally connected at 98 to fork 98 retained on transverse pin Hill on hanger 83. Thus, by moving handle 88 on segment d2, wheel it is raised or lowered or retained 1n any intermediate position as is desired.

In operation, plow It is secured to a tractor by means of clevises 30 and 34, while plow discs 54 turn the furrows one after the other, depending on the number of plows mounted on beam [4. When the plow is to be used in its alternate position, handle 15 is grasped and lifted to unseat rod 68 from retention by lug 64, thereby making beam [4 movable on pivot 40 to travel to the opposite end of the frame as determined by slots 22 and 24, to be retained on lugs 64, lever 42 meanwhile pivoting to actuate links 58 and reverse discs 54 to turn the furrows in a new direction. Suitable abutments I02 are provided on support l2 adjacent the ends of the arc of travel of links 58, to insure against improper setting of the plow. Enough clearance is provided so that there is no interference with pivotal movement of links 58.

From the foregoing, it will be seen that the several objects of the invention are attained. As many modifications of the embodiment illustrated might be made withoutdeparting from the spirit or scope of the invention, and the above description and accompanying drawings shall be construed as illustrative and not in a limiting sense.

Having described the claimed as new is:

1. A reversible plow comprising an elongated frame, clevis means for attaching said frame to a tractor, a bolt carried vertically at the center of said frame, a plow beam pivoted for horizontal movement on said bolt, a lever spaced from said plow beam and pivoted at its center for horizontal movement on said bolt, said frame being provided with arcuate slots adjacent its invention, what is 4 ends, plow feet carrying plow discs at their bottom ends extending through said slots provided in said frame and rotatably secured to said plow beam, means pivotally securing the upper ends of said feet to the opposite ends of said lever, and latch means for releasably retaining said plow beam in a fixed position against pivotal movement on said frame.

2. The combination of claim 1 wherein said second named means includes longitudinal slots provided in the opposite ends of said lever, pivot pins extending through said longitudinal slots provided in said lever, and links terminally pivoted to said pivot pins and to the upper ends of said feet.

3. The combination of claim 2 and stop means carried by said frame for insuring proper setting of said discs at the ends of the strokes thereof, said stop means including abutments secured at predetermined angles adjacent the ends of said arcuate slots.

CHARLEY N. BETZ.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 623,673 Kavanagh Apr. 25, 1899 717,087 Fairbank Dec. 30, 1902 939,617 Nall Nov. 9, 1909 2,084,629 Coviello June 22, 1937 FOREIGN PATENTS Number Country Date 178,786 Great Britain Apr. 27, 1922

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