US2529435A

US2529435A - Plowshare

Info

Publication number: US2529435A
Application number: US715501A
Authority: US
Inventors: Warholoski Fred
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-12-11
Filing date: 1946-12-11
Publication date: 1950-11-07
Anticipated expiration: 1967-11-07

Description

Nov. 7, 1950 F. WARHOLOSKI PLOWSHARE Filed Dec. 11, 1946 INVENTOR.

FT E :1 Warhol :1

BY: 5 z

Patented Nov. 7, 1950 UNITED STATES PATENT OFFICE PLOWSHARE Fred Warholoski, Columbus, Nebr. Application December 11, 1946, Serial No. 715,501

3 Claims.

This invention relates to plowshares or plowlays.

Many plowshares associated with tractor plows do not enter the ground quickly nor readily when first released and are inclined, after a short period of use, to spring or pull out of the ground.

An important object of the invention is to provide a plowshare which, when released to enter the ground will so do at once.

Another important object is to provide a plowshare which will not spring nor pull out of the ground while in use.

Plowshares are, in the main, relatively heavy and one of the important objects of this invention is to provide a particularly light weight, thin, but very sturdy plowshare, which may be attached to conventional plow bodies without altering the latter.

Still another important object is to provide a plowshare, so constructed that it will not require frequent resharpening. In fact, it has been discovered that this plowshare will plow until it is substantially worn out, without resharpening. All that is required is hard refacing of the point after an average 150 to 200 acres of plowing.

Other objects and advantages of the invention will be apparent during the course of the following detailed description of the invention, taken in connection with the accompanying drawing, forming a part of this specification, and in which drawing:

Fig. 1 is a perspective view of one face of the novel plowshare.

Fig. 2 is a perspective view of a fragment of the other face thereof.

Fig. 3 is a section upon substantially the line 3-3 of Fig. 2.

Fig. 4 is a perspective view, similar to Fig. 1, but on a reduced scale, of the new plowshare, and those portions of a plow body to which it is constructed and arranged to be attached.

In the drawing, wherein for the purpose of illustration is shown a preferred form of the invention and wherein similar reference characters designate corresponding parts throughout the several views, the novel plowshare is designated as A and a plow body, to which it may be attached, as B.

The new plowshare A includes a main body portion It] and a knife portion I I.

As may be seen, particularly in Figs. 1 and 2, the main body portion I0, has opposite faces I2 and I3, a knife portion abutting edge I4 which is preferably substantially straight, a longer rear edge I5 which may be substantially straight and forms an obtuse angle with the edge I4, a short upper edge I6 which may also be substantially straight and a forward or front edge I1 which may be substantially straight as at I8, for a portion of its length adjacent its juncture with the edge I6 but is concave, as at I9, from the lower end of the straight edge portion I8 to adjacent the juncture of the edge I1 with the edge I4, but the extreme lower portion of the edge I1 changes from.

concave to convex, as at 20, from the edge portion I9, to the juncture of edges I1 and I4. While the edges described are more or less like the edges of some conventional plowshares, they have been described so as to better associate with them novel features of the new plowshare. The main body portion it is provided with the usual stud 2| and bolt and nut assembly 22 projecting from the face I2.

It is preferred to construct the body portion I 0 of vanadium spring steel and the convex edge portion is preferably hard-faced with a suit-' able facing metal.

Associated with the body portion Ii! is the knife portion II. As may be seen in Figs. 1, 2 and 3,

this portion I I extends to both sides of the planes of the faces I2 and I3 of the portion II], and is disposed along the edge I4, with the portions III and II forming, in cross section, somewhat of a T, as in Fig. 3. From the end of the convex edge portion 20 the edge 25 of the knife portion and properly hard faced with a suitable facing:

metal. Extending from the section 21 is a conventional stud and the edge 25 is indented'by a short. arcuate slot 3 I.

Again referring to the body portion I0, it will be seen in Fig. 1 that there are two ribs and 36 extending from, preferably, the knife portion II over the face I2 of the body portion. Therib 35 extends over the face I2 adjacent the edge I51 to the edge I6 and the rib 36 extends over the face I2 intermediate the edges I 5 and I1 converging toward the rib 35 and meets it, at the edge I 6 in a curve. Extending across the face I2 from rib to rib are

cross ribs

31, 38 and 39.

These several ribs are not only for the purpose of strengthening the body portion H] (which latter may be much thinner than conventional plowlays) but they also strengthen the stud 2i and bolt 22. Because of the thinness of the portion I0, the ribs provide the additional thickness necessar to enable the new plowlay to be properly coupled so as to be flush with the moldboard of the plow body B.

From Fig. 1 it will be seen that the knife portion H is provided with a pair of substantially parallel ribs 40, extending from the edge 26 to either side of the slot 3| toward, but falling short of the stud 39. These ribs 99 are also provided for the purpose of strengthening the knife section 27 and, because of the thinness of this section, to build up the thickness in order to properly associate the knife portion H with the bracket portion of the plow body B, next to be described.

The plow body B, which is of conventional construction, and is shown in Fig. 4 includes a moldboard 45, frog 46, having a V-slot 41. and brace assembly 48. extending from the moldboard 45 to the slot 4.1. A U-shaped slot 49 is inthe end portion of a casting 50 secured to the. moldboard 45 and frog 46, with this casting 5.0 having a U-shaped projection 55. inwardly of the slot 49, which. slot 99 and projection 5| are carried by a bracket portion 52 which bracket portion 52 forms the end section of the casting 5B. The end of the brace assembly 32 within the slot 41 has a slot 53. A casting 54, car ried by the casting 58 and extending along the moldboard 45, has a U-shaped slot at its free end.

In securing the plowshare A tothe plow body B, the body portion [9 slides over the outer face of the bracket portion 52 untilthe projection el' fits snugly into the slot 3i and the stud 36- as tends into the U-slot 39. stud 2l'will engage the Walls of the V-slot 41.

At the same time the The brace 48 is manipulated so that the slot 53? extends around the stud 2!. addition the bolt shank of the bolt and nut assembly. 22 will extend into the U-slot 55 of the casting 5'.:. The plowshare is then drawn into rigid engage-- ment with the plowshare body b tightening. the; nut of the bolt and nut assembly 22- and by means of the brace assembly 48.

By the use of the ribs to 9, a plowshare may be built to weigh but 7% pounds, for ex-- ample, as compared with the. usual plowshare of about 12%; pounds and, because of the strong construction (vanadium steel, is. preferred; with the cutting edges. hard faced), the new plow share will cut as much or more than conVen-- tional, heavier plowshares, and will. not require resharpening.

As a result, although my plowshare. A has. the: portions I9 and II much thinnerv [for example. the thickest portion of body portion is need not. be over inch and the thickest portion of the knife portion (along the edge 25) is not over A; inch, than the body and knife portions of conventional plowshares] the ribs 35. to 3.8 inclusive and ribs 40, permit the novel plowshare A to be rigidly coupled to conventional plow. bodies, such as B, and the several ribs, provide. reinforcing for the plowshare body and knife portions.

Various changes may be made to the form of the invention herein illustrated and described without departing from the spirit of the invention or scope of the claims.

What is claimed is:

1. In a plowshare for association with a plow body having a plowshare body portion-contacting face and a plowshare knife portion-contacting face, said plowshare comprising a body portion and a knife portion, saidknife portion extending outwardly of the planes of opposite faces of said bod portion, said body portion having a plurality of ribs projecting from one face thereof and said knife portion having a pair of ribs projecting from one face thereof disposed to one side of said planes, the ribs of said body portion being constructed and arranged to extend over and in face contact with said bod portion-contacting face and said pair of ribs being constructed and arranged to extrend. over and in face contact with said knife portion contacting face.

. 2. In. a plowshare for association with a plow body having a plowshare body portion-contasting, face, and a plowshare knife portioncontacting face, said, plowshare comprising, a thin body portion and a. thin knife portion, said knife portion extending outwardly of the planes of opposite faces of said'body portion, said body portion having a plurality of ribs projecting from one face thereof and said knife portion having a pair of ribs projecting from one face thereof disposed to one side of said planes, the ribs of said body portion being constructed and arrangedto extend over and in face contact with said bodyportion-contacting face and said pair of ribs being constructed and arranged to extend over and in face contactwith said knife portion-contacting face.

3. In a. plowshare for association with a plow body having a plowshare knife portion-contacting face, said plowshare comprising a body portion. and a knife portion, said knife portion extending outwardly of the planes. of opposite faces of said body portion, said. knife portion having a pair. Off ribs projecting from one face thereof disposed toone side of. said planes, said pair of ribs being constructed and'arranged to extend: over and. in face contact with: Said knife, portion,- contacting face.

FRED WARHOLQSKI'.

REFERENCES, CITED The following references are of: record in the file ofthis patent:

UNITED STATES PATENISQ Date