US1773537A - Harrow tooth - Google Patents

Description

Aug. 19-, 1930. s. c. LEMMONS 1,773,537

HARROW TOOTH Filed July 9, 1929 In vnior Samuel .Lemmona Patented Aug. 19, 1930 1 UNITED" srrss IPATENI oFFIcE SAMUEL C. LEMMONS, OF CEDAR HILL, TENNESSEE ASSIGN OR F ONE-HALF T0 JAMES L. SPARKS, OF RUSSELLVILLE, KENTUCKY HARROW Too'rH Application filed July 9, 1929. Serial No. 376,901..

v1de an improved tooth for harrows, wherein the tooth is so formed as to provide a suitable attaching portion adapted to grip the frame of the harrow so that said tooth may be rigidly maintained on said harrow frame, the

connection between the tooth and the harrow frame being strong, positive, durable and otherwise well adapted for maintaimng the tooth in a stationary and fixed position upon the frame.

Other objects and advantages of the invention will become more apparent durlnga study of the following description taken 1n connection with the accompanying drawlngs,

wherein:

Figure 1 is a side elevation of my improved harrow tooth showing the same attached to the frame of the harrow, the frame being shown fragmentarily.

Figure 2 is a detail perspective view of the harrow tooth per se.

With reference more in detail to the drawings, it will be seen that have designated generally by the reference character 5,v a harrow frame to which my tooth is adapted to be applied, said harrow frame being herein shown merely for the purpose of fully illustrating the application of my inventlon, consequently the frame being shown merely fragmentarily.

In the present embodiment of my inven tion, it is intended to form the tooth generally designated by the reference character 6 of a single strand of wire, malleable steel or other strong and durable material of suit-able length. In forming the tooth therefor, the wire at one end thereof is offset as at 7, the offset portion being flattened to provide the tooth or penetratingpoint 8, which point is shown as of substantially diamond shape in configuration. The material forming the tooth 8 is extended rearwardly of the toothso as to provide the shank 9. The shank 9 at Its opposite end is offset as at 10 and the material forming the shank at this offset portion is looped upon itself to provlde an attachlng eye 11. Continuing from the eye 11, the material then forming the tooth is extended rearwardly as at 12 and then bent at right angles as at '13, and again as at 14, in parallelism with the part 12, thus forming a lateri,

ally extending substantially U-shaped bracket herein designated generally by the -reference character 16. I The portions 12 and 13 may be termed the legs of the'U-shaped bracket and it is to be noted, in this connec-- tion, that the-leg 14 terminates in an upstanding abutment 15.

i In applying the tooth to the frame 5 of the harrow, it will be seen that the eye 11 at the upper end of the shank 9 is disposed to one side of the frame 5 and that a bolt or suitable fastening element 15 may be passed through the eye and the frame 5, and a lock nut18 threaded on the bolt for securing the eye portion of the shank securely against the said face vof the frame. Obviously then, the U- shaped bracket 16 will extend transversely of the frame 5, to engage the bottom face of the frameand that the leg 14 of the bracket will project beyond the opposite face of the frame result that the same is disposed upon the crown portion 13 of the U-shaped bracket 16 between the eye 11 and'the upstanding projection 15 andthat the shank 9 will extend downwardly and forwardly of the frame, all of which is clearly shown in Figure 1.'

" From the foregoing then, it will be seen that I have provided a strong and durable tooth which can be readily and easily secured to the tooth supporting frame of the harrow and the tooth being equipped toform integral therewith suitable attaching means, whereby the frame may be securely gripped by the upper end of the toothlso as to prevent any untoward movement of the tooth upon the frame, and at the same time retain the tooth in a strong and rigid fixed relation to the frame. I

' Even though I have herein shown and described the preferred embodiment of my invention, it is to be understood that the same is susceptible to changes fully comprehended by the spirit of the invention and the scope of the appended claims.

What is claimed is:

1. In combination with a harrow, wherein the same comprises a toothed supporting frame, a tooth comprising a penetrating point and a shank rising from said point, said shank being provided at its upper end with a loop extension adapted to be disposed on one side of the tooth supporting frame, and that portion of the shank adjacent said looped extension extending laterally for engagement with the under face of the frame, and the laterally extending portion of the shank terminating in an upstanding projection adapted for engagement with that side of the frame opposite to the side of the frame against which the looped extension is disposed.

2. In combination with a harrow, wherein the harrow comprises a tooth supporting frame, of a-tooth comprising a shank portion terminating at one end in a penetrating point, said'shank at its opposite end being provided with a substantially U-shaped bracket, one leg of said bracket merging into the shank at the opposite end of the shank and adapted to engage the tooth supporting frame adjacent one face of the frame, and the other leg of said U-shaped bracket terminating in an. upstanding projection adapted to engage with the opposite face of the frame.

3. In combination with a harrow, wherein the harrow comprises a toothed support- 7 face of the frame, and said laterally extend ing portion terminating in an upstanding projection adapted to abut that'side of the frame opposite to the side of the frame against which the loose extension is disposed.

4. In combination with a harrow, whereinthe harrow comprises a toothed supporting frame, of a tooth comprising a shank terminating at one end in a downwardly and forwardly inclined penetrating'point, said shank at. its opposite end being provided with a substantially U-shaped bracket, one leg of said bracket merging into an .eye at said-opposite end of the shank, said eye adapted for disposition against one side of the frame, a bolt passing through said eye and said frame, and the other leg of said U-

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