US2930620A - Arrow head - Google Patents

Description

March 29, 1960 w. R. BROOKS ARROW HEAD Filed July 51, 1957 W RBRO 0K5 INVENTOR.

BY Mg,

ATTORNF ted .flie Q ARROW HEAD Wendell R. Brooks, Dearborn, Mich.

Application July 31, 1957, Serial No. 675,324

4 Claims. (Cl. 273-1065) This invention relates to the sport of archery and is dedicated to the provision of an improved arrow head for use in the pursuit of medium sized and large game animals. The arrow head which forms the subject matter of the instant invention is readily and economically produced with a of manufacturing facilities, is highly effective in use and may be readily serviced in the field without tools and employing auxiliary cutting edges obtainable anywhere.

This invention for the sake of clarity is described in connection with the figures of drawing in which Figure 1 is a perspective view of a completed arrow head ready for installation on the arrow, and

Figure 2 is an exploded view of the arrow head shown in Figure l to more clearly demonstrate its construction, and

Figure 3 is a cross section of the structure shown in Figure 1 and taken along the line 3-3, and

Figure 4 is a perspective view of another form of the invention and is similar to Figure 1.

A consideration of Figures 1, 2 and 3 of the drawings and particularly of Figure 2 will show the arrow head to be fabricated from three separate sheet metal members which for economy in manufacture should be identical. Sheet metal members 10 are readily fabricated on conventional metal stamping machinery. Sheet metal members 10 are each provided with a depression 11 remote from the region of the arrow head point. The metal forming depression 11 is provided with deformations 12. The purpose of depressions 11 and deformations 12 will become apparent as the description proceeds.

The arrow head is fabricated by assembling the three sheet metal members 10 as shown in Figure 1 and securing these sheet metal members together by spot welding. To produce a strong and rigid structure it is preferred to supplement the spot welding with a brazing operation, although it is to be understood that any con-' ventional fastening operation or combination of such operations may be employed to secure together the plurality of sheet metal members 10 which make up the assembled arrow head. If brazing is employed, care must be taken not to permit brazing metal to flow into depressions 11.

Sheet metal members 10 are provided with arcuate portions 13 which when assembled form a tapered opening for the reception of the arrow which has not been shown. The arrow may be secured to the fabricated arrow head by any-conventional means.

Since an arrow is inherently a low velocity projectile having little shocking power, it must rely upon the induction of massive and immediate hemorrhage in game animals for quickly immobilizing the game animal and giving a quick clean kill. This type of a kill results in a minimum of pursuit by the archer. The large blood accuracy of their manufacture makes it possible to apply 2 vessels of game animals which must be severed to induce} suchhemorrhage are tough and rubbery and an arrow head is to reliably sever them 'it' must be extremely sharp. Otherwise the arrow head will merely displace the blood vessels with which it comes in contact without severing them and result in a lingering death for the game and a lost trophy for the archer.

To provide a portion of such cutting edge, the junction of two adjacent sheet metal members 10 near the point of the arrow head are sharpened to provide an initial cutting edge 14. The final cutting edge is provided by detachable blades 15. The edge of detachable blade 15 forms a continuation of initial cutting edge 14. It is preferred to provide detachable blade 15 with openings 16 for coaction with deformations 12 to resiliently secure detachable blade 15 in the arrow head.

Figure 3 clearly shows depressions 11 assembled to form a receptacle for the reception of detachable blade 15. The action of deformations 12 in securing detachable blade 15 in position is apparent from this drawing.

Figure 4 shows a structure analogous in all respects to the structures shown in Figures 1, 2 and 3 except that the structure of Figure 4 has been fabricated from two instead of three sheet metal members 10. This structure is somewhat more economical to manufacture than the three member structure and for some hunting purposes is preferred.

The arrow head structure described above is capable of usage with any suitable detachable blade 15 which has a very keen edge, is readily available even in remote locations, and is precisely manufactured to close tolerances. This set of requirements is preeminently well met by the simple expedient of employing safety razor blades as blades 15. These precisely manufactured articles of commerce are everywhere cheaply available and the and remove blades 15 in the field with no tools. These razor blades have a degree of keenness that is difiicult to establish or maintain on any permanent arrow head edge.

For the pursuit of medium and large sized game it is advantageous to deliberately produce a cutting edge 14 which is significantly less sharp than the edge provided by blade 15. The momentum of even a slow flying arrow is adequate to force the less sharp leading edge 14 through the target animal provided it is backed with the very keen edge of blade 15. The expenditure of the energy in the animal necessary to force the comparatively dull edge 14 through the animal provides the arrow with shocking power which is absent from a missile which presents only very keen cutting edges.

I claim as my invention:

1. An arrow head comprising a vplurality of longitudinally extending cutting edges, each cutting edge comprising two sheets of metal secured together, said two sheets of metal being secured together in intimate face to face contact in the region adjacent the arrow head point, and being slightly separated in the region remote from the arrow head point to form a receptacle, and a blade having a longitudinally extending sharpened edge slidably and detachably received in said receptacle.

2. The structure recited in claim 1 in which the edge formed by the two sheets of metal adjacent the arrow head point is substantially less sharp than the edge of the blade in the receptacle.

3. The structure recited in claim 1 in which the edge formed by the two sheets of metal adjacent the arrow head point and the edge of the blade in the receptacle are arrayed as a continuation of each other.

Pi nte Mer. .1 ,9

' 4. An arrow head mam a plurality of longitudinan-y extending cutting edges, each cutting edge 'compoint, and having remote from the arrow head point a stamped, rectangular blade receptacle aligned with a longitudinally extending cutting edge'for the reception ofaslidably detachable blade. I

7 References Cited in the file of this patent UNITED STATES PATENTS Kennedy Dec. 11, 1923 Norlund Oct. 26, 1926 Krasberg Aug. 14, 1951 Steinbacher Sept. 18, 195i Peltz Aug. 10, 1954

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