US2164693A - Plow - Google Patents

Description

y 1939- J. B. BERRYHILL ,693

PLOW

Filed Jan. 25, 1937 3 Sheets-Sheet l Inventor A iiorneus July4, 1939. I B BERR L 2,164,693

PLOW

Filed Jan. 25, 1937 3 Sheets-Sheet 2 I n uen for A iiorneys y 1939- J. B. BERRYHILL 2,164,693

' PLOW Filed Jan. 25, 1957 3 Sheets-Shet 5 Inventor A fiorneys Patented July 4, 1939 UNITED STATES PATENT OFFICE 1 Claim.

The present invention relates to new and useful improvements in plows of the sweep type and has for its primary object to provide, in a manner as hereinafter set forth, an implement of this character embodying a construction and arrangement which is such that the sweep may be conveniently adjusted to operate at any desired angle or inclination.

Another very important object of the invention is to provide a plow of the aforementioned character embodying novel means for releasably securing the sweep in adjusted position.

Other objects of the invention are to provide a plow of the character described which will be comparatively simple in construction, strong, durable, highly efiicient and reliable in use, compact, light in weight and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of the invention will become ap parent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure 1 is a view in side elevation of a plow constructed in accordance with the present invention, the sweep being omitted.

Figure 2 is a view in top plan of the invention, one of the handles being broken away.

Figure 3 is a cross sectional view, taken sub stantially on the line 33 of Fig. 1.

Figure 4 is a perspective view of the standard.

Figure 5 is a detail view in perspective of the pawl.

Figure 6 is a perspective view of the runner and the rudder thereon.

Referring now to the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a metallic beam I having means 2 secured on its forward end for connection with a suitable source of power. Secured at an intermediate point on the rear end of the beam I is a longitudinally extending runner 3 having fixed on its rear end portion a depending rudder 4. Forwardly of the rear end of the beam I, the runner 3 extends upwardly'as at 5, and terminates in a forwardly projecting end portion 6.

The reference numeral I designates handles of suitable material, preferably wood, which are secured to the rear portion of the beam I by metallic straps 8. Braces 9 extend from the beam I to the handles I. Extending between the handles '1 is a brace ID. The reference numeral I I designates a quadrant which is rigidly secured on the curved portion of the beam I.

Mounted for swinging movement on the forward end portion 6 of the runner 3 is a standard which is designated generally by the reference numeral I 2 and which is adapted to have mounted on its lower end portion the sweep (not shown). The standard I2 comprises comparatively long and short complemental bars I3 and I4, respectively, the lower end portions of which project forwardly at an angle. The bars I3 and I4 are pivotally mounted on opposite sides of the forward end portion 6 of the runner 3, as at I5. The bars I3 and I4 extend upwardly on the opposite sides of the beam I and the quadrant II and have their upper end portions secured together by a spacing block I6 having an opening I'I therein. The spacing block I6 has projecting therefrom threaded shanks I8 which extend through the bars threaded thereon securing nuts I9. Below the spacing block I6 and adjacent the quadrant II, the bars I3 and I4 have formed therein transversely aligned slots 28.

The bar I3, it will be noted, extends above the upper end of the bar I4 and terminates in a right angularly projecting handle 2|. Pivotally mounted on the upper portion of the bar I3, below the handle 2|, is a lever 22. The reference numeral 23 designates a substantially T-shaped pawl the shank of which is slidably engaged in the opening ll of the spacing block I6. The head of the substantially T-shaped pawl 23 is slidable in the slots 20 and engageable with the quadrant I I for releasably securing the standard I2 in adjusted position. A coil spring 24' encircles the shank of the substantially T-shaped pawl 23 and has one end engaged with the spacing block I5 and its other end engaged with the head portion of the pawl for yieldingly urging said pawl toward the quadrant I I. A suitable rod or wire 25 connects the pawl 23 to the lever 22 for actuation thereby against the tension of the spring 24,

It is thought that the operation of the plow will be readily apparent from a consideration of the foregoing. To adjust the angle of the sweep the substantially T-shaped pawl 23 is disengaged from the quadrant I I through the medium of the lever 22 after which the standard I2 may be conveniently swung to the desired position on its pivot I5. When the lever 22 is released the spring 24 immediately engages the pawl 23 with the quadrant II for securing the standard I2 in adjusted position. The construction and ar- I3 and I4 and which have H rangement of the handle 2! and the lever 22 is such that the pawl 23 and the standard l2 may be conveniently operated with one hand with a minimum of efifort.

It is believed that the many advantages of a plow constructed in accordance with the present invention will be readily understood and although a preferred embodiment of the implement is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

A lever for plows comprising a. pair of spaced, parallel pivotally mounted bars having opposed longitudinal slots therein, a spacing block mounted between the bars adjacent the slots, said block having an opening therein, threaded shanks on said block projecting through the bars, securing nuts for said bars threaded on said shanks, a substantially T-shaped pawl between the bars slidably mounted in the opening in the block, the head portion of said pawl being operable in the slots, said pawl being engageable with a keeper for releasably securing the bars against swinging movement, a coil spring mounted on the pawl and having one end engaged with the block and its other end engaged with the head portion of said pawl for yieldingly urging same toward operative position, and means on one of the bars for retracting the pawl.

JOSEPH BURTON BERRYHTLL.

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