US1700348A

US1700348A - Lister plow

Info

Publication number: US1700348A
Application number: US184262A
Authority: US
Inventors: Jeremiah V Brooks
Original assignee: JOHN A HULL
Current assignee: JOHN A HULL
Priority date: 1927-04-16
Filing date: 1927-04-16
Publication date: 1929-01-29
Anticipated expiration: 1946-01-29

Description

Jan. 29, 1929.

' J. v. BROOKS LISTER PLOW Original Filed April 16, 1927 2 Shuts-Sheet INVENTOR. J. K Brae/6,

ATTORNEYS.

Jan. 29, 1929. 1,700,348

. J. v. BROOKS LISTER PLOW Original Filed April 16, 1927 2 Sheets-Sheet 2 IN VEN TOR.

' IKE/00f BY I GTWTTORNEYS. J

Patented Jan. 29, 1929.

UNITED. STATES PATENT OFFICE.

JEREMIAH v. BROOKS, E LIBERAL, xenszrsnssmnoa or ONE-FOURTH T0 JOHN A. HULL, or PERTH, KANSAS.

LISTER rLow.

Application filed April 16, 1927, Serial No. 184,262. Renewed December 3, 1928.

This invention relates to lister plows.

The object of my invention is the construction of a simple and efficient lister plow, whereby a field may be more easily and satisfactorily cultivated. I

Another object of the invention is the construction of a lister plow having a mold board that is reinforced and greatly strengthened by an eiiicient frog, and to which mold board and frog simple and efficient cutters may be attached.

With the foregoing and other ob ects in View, my invention comprises certain novel constructions, combinations and arrange- 1 ments of parts as will be hereinafter fully described, illustrated in the accompanying drawings, and more particularly pointed out in the appended claims.

In the drawings: I Figure 1 is a perspective View of a lister plow constructed in accordance with the present invention,while Figure 2 is a rear view of the same.

Figure 3 is a vertical central sectional View of the frog.

Figure 4 is a sectional View taken on line 4-4, Figure 2 and looking in the direction of the arrows.

Figure 5 is a perspective View of the frog.

Figure 6 is a perspective view of one of the cutters.

Figure 7 is a sectional View taken on line 77, Figure 2, and looking in the direction of the arrows.

Referring to the drawings by numerals, 1 designates a mold board, which is substantially V-shaped in cross section (Fig. 4), and the mold board is provided, at its lower end, with a point structure 2, which cuts or shears the sod or earth.

The frog 3 of my lister plow comprises an elongated body 4, curvedto conform to the mold board 1, and the body of the frog is substantially V-shaped in cross section, as shown in Figure 4. Extending laterally from the upper end of body 4 are upper flanges, 5, 5. Extending laterally from the lower portion of the body 4 are elongated lower flanges 6, 6.

In the upper flanges 5 are apertures 7 and in the lower flanges 6 are apertures 8 and 9. Extending rearwardly from the upper end of the body 4 of the frog 3 are a pair of parallel ears 10.

Each car 10 is provided with an upper. horizontal curved slot 11, and with a vertical elongated slot 12. The plow beam is positioned between the ears 10 and bolt 14 (dotted lines Fig. 2) extends through thev lower end of said plow beam and the registering slots 12; bolt 15 (dotted lines Fig. 2) also extends through plow beam 13 and the registering slots 11. By reason of these peculiarly formed and positioned slots 11 and 12, the plow beam 13 can be adjusted to a nicety upon the mold board 1, so that the proper pitch, for cutting and plowing purposes oan be obtained withmy lister plow.

At the lower bend A (Fig. 3) of the frog, where the greatest strain occurs, I form a reinforcing rib 16 which greatly strengthens the entire structure and thereby increases its life.

Bolts 17 extend through the mold board 1 and apertures 7 fastening securely the upper end of the frog to the mold board. Suitable fastening means such as rivets 18 extend through the apertures 8 and 9 and themold board, thereby securely fastening the lower end of the frog to said mold board 1.

The laterally extending elongated flanges 6 are provided on their inner or upper faces with cutter receiving sockets 19; the apertures 9 opening at their upper ends upon these sockets. The angle cutters 20 each comprises a base 21 and a vertically extending portion 22. The base 21 is positioned between the mold board 1 and the body 4 of frog 3, with the aperture 23, of base 21 registering with aperture 9, and a rivet 18 (Fig. 7 extends through the mold board 1 and these registering apertures 9 and 23, securely fastening the cutter in place. These cutters prevent the lister sliding sidewise, and they also lightening the draft and reduce the wear of the outer side of the lower part or shear and the mold board.

The drawings show the mold board and its lower structure 2 to be curved gradually so as to produce an excellent plowing point, whereby the earth is lifted and passed up over the mold board without undue strain or load being placed upon the draft animals. The frog extends substantially the entire length of the inner face of the mold board and its lower pointed structure, whereby the entire mold board is greatly reinforced and strengthened, while at the same time a very efficient means is furnished for connecting the plow beam 13 to the mold board. Further, by the special curvature of the upper and outer portion of the mold board,

as shown in the drawings, the dirtis broken,

pulverized and thrust clear of the furrow.

To make the cutters 20 easily attachable,

or detachable, the bolts 17 may be substituted ,for the rivets 18 (Fig. 7), whereby the cutters 20 can be placed on or taken off my plow as the operator desires.

A pair of rivets 2-4: is placed at each side of the longitudinally extending rib 16, these rivets extending through apertures 25 (Fig. 5) in the body of the frog. This further strengthens the point of greatest wear upon my lister plow, because the parts are tightly connected at the bend A, hereinbefore referred to, which bend is also found in the mold board 1' and the lower part or shear portion 2.

WVhile I have described the preferred embodiment of my invention: and illustrated the same in the accompanying drawings, certain minor changes or alterations may appear to one skilled in the art to which this invention relates during the extensive manufacture of the same, and I, therefore, reserve the right to make such alterations or changes or shall fairly fall within the scope of the appended claims.

What I claim is: A

1. In a lister plow the-combination with a mold board, of a frog provided with lower flanges, said flanges provided on their inner face with cutter receiving sockets, angle cutters between said mold board and frog and seated in said cutter receiving sockets, means extending, through the mold board, cutters and frog for fastening the same together, and means formed on said frog for attaching a plow beam thereto.

2. In a lister plow, the combination with a mold board, of an elongated: frog fastened against the inner face of said mold board, said elongated frog having receiving sockets in its lower portion and at its outer edges, cutters provided with horizontal bases extending into said sockets, fastening means extending through the mold board, frog and said bases fastening all together, and said cutters also provided with vertically extending portions projecting upwardly above the side edges of said mold board.

3. In a lister plow, the combinationwith a mold board, of a frog provided at its side edges with lower elongated flanges, said flanges provided on their upper faces with cutter receiving sockets opening on the edges of said flanges, angle cutters seated down in said cutter receiving sockets between the frog and the mold board, and means fasten- JEREMIAH V. BROOKS.