US1775226A - Brush-cutting-tool head - Google Patents

Description

Sept. 9, 1930. c, c 1,775,226

BRUSH CUTTING TOOL HEAD Filed Aug. 5, 1928 Patented Sept. 9, 1930 UliETED STATE$ CHARLES H. RICH, OF WOCLRIOI-I, PENNSYLVANIA BRUSH-CUTTING-TOOL HEAD Application filed August 3, 1928. Serial No. 297,312.

The object of my invention. is the provision of a practically advantageous brush cutting tool head, designed more especially for fire fighting purposes-i e., clearing away brush with a view to preventing the spread of forest fires.

To the attainment of the foregoing the present invention as compared with the tool of my Patent 1,469,957 of October 9, 1923,0011- 10 sists in the improvement as hereinafter described and definitely claimed.

In the accompanying drawings forming part of this specification Figure 1 is a view showing the forward '15 side of the tool head which is the lower side in use, Figure 4.

Figure 2 is a view of the rear side of the tool head.

Figure 3 is a View taken from aview point at the right of Figure 4.

Figure 4 is a section taken in the plane in I dicated by the line l4 of Figure 2 looking in the direction indicated by arrows.

Figure 5 is a view of the head as it appears in plan with the handle socket removed.

Figures 6 and 7 are detail views showing the preferred form of the handle socket.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

My novel tool head comprises a split handle socket 1 which may be connected to the tool head body in the specific manner hereinaf er described or in any other approved manner Without departure from my claimed inven tion.

The tool head also comprises the body 2 alluded to, and cutting blades 3, the body 2 being of appropriate metal or alloy, and the 40 blades 3 being of steel and therefore susceptible of being thoroughly sharpened.

The body 2 is of angle form in cross section, and in the present preferred embodiment of the invention said body 2 is provided with projecting lip l in the same plane as the body portion 5. The split handle socket 1 is connected in fixed manner to the head 2 by a bracket 6 which is bent over the said lip r and the remote edge of the portion 5 and is connected fixedly to said poption 5 by rivets 7, the shanks of which are disposed in the apertures 8, Figure 5, of the portion 5. The handle socket 1 is split at diametrically opposite points as indicated by 1* to afford an automatic means of tightening on the handle,

when the wooden handle tends to shrink, due to atmospheric conditions, thus always keeping the tool solid on the wood. The socket is made comparatively long, and near its rear end and at right angles to the splits 1 holes are provided in the socket wall so the socket can be drawn tight against the wood handle by means of a bolt.

The body 2 is beveled at 2 so that brush will not be obstructed from a. free cut by any blunt eda'e holding the knives.

In addition to the portion 5 the body 2 has a portion 8 preferably disposed at right angles to the portion 5, and in the edge of the portion 8 remote from the portion 5 are spaced notches 9 of V shape in elevation for an important purpose hereinafter set forth. it will also be noted by comparison. of the several figures of the drawings that the porti-on 8 is provided with protuberanc'es 10, preferably of rounded type, aligned with and arranged immediately adjacent the apices of the notches 9.

The cutting blades 3 are arranged at the back of the body portion 8 and are connected to said body portion 8 by rivets 11. It will also be understood from Figures 2 and 4 that the inner ends of the blades 3 abut solidly against and are backed by the portion 5 of the body 2, and from Figures 2 and 3 it will be understood that the blades 3 are aligned in a series and with their confronting ed es against each other.

The side cutting edges of the blades 3 are designated by 12 and the forward cutting edges of the said blades 8 are designated by 13. The said cutting edges are beveled, and it will be noticed that the converging cutting edges 12 of the adjoining blades meet at points in alignment with, but spaced from the body portion 8 and particularly from the apices of the notches 9. The angle of ad joining cutting edges 12 is preferably as illustrated in Figures 1 and 2 inasmuch as experimentation has demonstrated that such 7 angle is best for the effective cutting of the stalks of brush and the like.

body and meeting at points in alignment with the centers of the notches in the body and An important feature of my invention re spaced beyond one edge of the body.

sides in the relative arrangement of the notches 9, the meeting points of adjacent cutting edges 12, the beveled body portions and the protuberances 10. This will be better understood when it is stated that the provision of the notches 9 in conjunction with the meeting points of adjoining cutting edges 12' makes provision for the passage of the meeting points of the edges 12 entirely through the stalks ofbrush before the" body contacts with the stalks, assuring an efficient and clean cut, while the protuberances 10 constitute reinforcements and strengthen the notched members of'the body portion 8 so that there is no liability of the body 2 being fractured incident to the use of the tool head when tough brush stalks are encountered. Body portion8 is sharpened at edge to allow brush to slip by. 1

Incident to the use of my novel tool head the same is manipulated through the medium of a Wooden handle (not shown) andwith the blades 3 in close proximity to and in parallelism with the surface of the ground. When so used the tool will be found highly efficient for the purpose ascribed to the same. I have specifically described the preferred embodiment of my invention in order to impart a full and exact understanding of said embodiment. I do not desire, however, to be understood as limiting the improvements to said embodiment, my invention being defined by my appended claims within the scope'of which modifications may be made without departure from my invention.

Within the'purview' of my invention the nnbeveled portions of the blades 8 are preferably made long to provide an ample clearance space from the body portion 2 at the notched or beveled edge of the body.

Having described my invention, what I claim and desire to secure by Letters Pat- I ent is 1. A tool head comprising a body .with

portions at an angleto each other, one of said portions having spaced notches inits edge remote from the other portion, and cut ting blades arranged back of and against the notched portion and fixed thereto and abutting against the other body portion and also arranged inalignment in a series and having side cutting edges, the cutting edges of a'djoining blades converging toward the body and meeting at points in alignment with the centers of the notches and outwardly beyond the notched portion of the body, and pro- 7 said body for reinforcing the same.

2. A tool head comprising a bodyhaving spaced notches, and cutting blades fixedly connected to said body, said cutting blades having cutting edges converging toward the CHARLES H. RICH.

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