US1760341A - Harrow-tooth holder - Google Patents

Description

Ma 27, 1930. BREWT N 1,760,341

HARROW TOOTH HOLDER Original Filed Nov. 30, 192'? i I atfoziwqo J 46. Bren/202v.

Patented May 27, 1930 PAThlT FFICE JOSEPH L. BREWTON, OF RUSTON, LOUISIANA HARROW-TOOTH HOLDER Original application filed November 30, 1927, Serial No. 236,808. Divided and thisapplication filed October 12, 1928.

This application is a division of an application filed by me November 30, 1927, Serial No. 236,808, the present invention relating particularly to means for mounting a harrow tooth upon its tooth bar, and having for its object the provision of a simple mounting whereby the tooth will be firmly secured in a set position and will efiectually resist the thrust imposed upon it in operation. The inlo vention is illustrated in the accompanying drawing and will be hereinafter fully set forth.

In the drawing:

Figure 1 is a side elevation of a harrow having the invention embodied therein;

Fig. 2 is an enlarged detail section on the line 2-2 of Fig. 1;

Fig. 3 is an enlarged detail plan view of the mounting, and

Fig. i is a detail elevation of the harrow tooth and its mounting with the tooth in a position different from that shown in Fig. 1.

The harrow comprises a plurality of beams 1, a clevis or other draft device 2 at the front ends of the beams, handles 3, and adjustable braces and connections l, 5 and 6 between the beams and the handles.

The beams carrya plurality of teeth 20, as shown. The teeth employed by me have fiat :11 shanks with their lower ends twisted to form spear heads 21 adapted to enter and scratch the ground in an obvious manner, and when at work the several harrow teeth may be set vertically, as shown clearly in Fig. 1, whereby 5i their working ends will be disposed forwardly in proper position to reduce the soil to a fine mulch. Through the upper end portion of each tooth and the adjacent beam, a securing bolt 22 is inserted and a bracket 23 is disposed about the shank of the tooth and secured in place by the same bolt. The bracket extends both forwardly and rearwardly of the attaching bolt and on its upper edge at its front and rear corners is constructed with overhanging lips 24 which rest upon the upper edge of the beam and extend across the front and rear edges of the tooth shank, the tooth being thus held firmly to its work. Depending from the lower edge of the bracket at the front end thereof is an elongated tongue which has Serial No. 312,151.

its lower extremity turned outwardly and then upwardly, as shown at 26, so as to form an obliquely disposed seat. When it is desired to have the harrow tooth scratch the soil without any turning action, the bracket is inverted so that the seat 26 will engage over the edge of the beam in front of the tooth shank, as shown in Fig. l, thereby holding the shank in an inclined position with its point perpendicular or nearly so.

It will be seen from the foregoing description, taken in connection with the accompanying drawing, that I have provided a very simple device which may be very easily secured to the tooth bar or beam to hold the tooth in a desired position and, in either position will hold the tooth to its work.

Having thus described the invention, I claim:

The combination with a harrow beam, and a harrow tooth attached to the side of the beam, of a bracket disposed about the tooth and provided on one edge at its front and rear corners with lips adapted in one position of the tooth to engage the upper edge of the beam and extend across the front and rear edges of the tooth and provided at its front end with a tongue having its extremity forming an obliquely disposed seat adapted to engage over the upper edge of the beam in another position of the tooth.

In testimony whereof I ZLfiX my signature.

JOSEPH L. BRE /VTON. [n s.]

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