US2940759A

US2940759A - Power head arrow

Info

Publication number: US2940759A
Application number: US752651A
Authority: US
Inventors: Leo J West
Original assignee: Individual
Current assignee: Individual
Priority date: 1958-08-01
Filing date: 1958-08-01
Publication date: 1960-06-14
Anticipated expiration: 1977-06-14

Description

June 14, 1960 L. J. WEST POWER HEAD ARROW Filed Aug. 1, 1958 INVENTOR. 450 J? W557 invention relates generally to archery. More particularly, the invention has reference to an arrow the head of which'has means for driving the same more deeply into the game than would normally be the case.

One. object of importanceis to provide an arrow head which'will make a clean, fast kill on impact with the game, by reason of an arrangement wherein gun powder caps inback of the arrow head will drive the same more deeply into the flesh of the animal. I f Another object is to provide an arrow head which will have a means for driving the same more deeply into the game, which means will respond to the impact of the arrow head against the animal. Still another object is to provide, for use in association mm the sharply tipped arrow head that is employed to kill the game, a second type of arrow head which will be rounded, and which will be used to shootover and be: yond the game in a way such that on impact, it will create a noise that will tend to drive the game more closely to the hunter, within an effective range.

Another object is to provide an arrow head which will be so designed as to permit light poundage bows to be used, in a manner such that the penetration of the arrow into the game will be as great as that which would result when-the more usual heavy poundage hunting bow is employed. In this way it is proposed to permit hunters having less strength than that normally required for heavy poundage'bows, to have the same opportunities in: hunting "game with bow and arrow as that whichjs nowreserved only for hunters having greater strength and the capability of using heavier bows.

Another object is to so design the arrow head that on impact, the head will be driven more deeply into the game but the shaft of the arrow will be caused to be completely or at least partially moved rearwardly, to be ejected from the flesh of the animal so as to facilitate its being retrieved and reused.

Still another object is to provide a device of the character, stated that will be designed to prevent an arrow from being impaled within a .tree under conditions such that retrieving of the arrow would be eliminated, the device being adapted to cause the shaft to be ejected if the arrow should strike a tree, and to drop to the ground.

Another object is to provide an arrow as stated which will permit the same to be used either as a hunting arrow with a power head or as a target arrow without the head,

by reason of the fact that .th shaft can receive either type of head.

Another object is to provide an arrow which will be designed to resist breakage, to an extent above and be yond the resistance that is characteristic of an ordinary arrow.

Other objects will appear from the following description, the claim appended thereto, and from the annexed drawing, in which like reference characters designate like parts throughout the several views, and wherein:

Figure 1 is a view of an arrow according to the present invention, partially in side elevation and partially in lon- 2 gitudinal section, a portion of the shaft being broken away; Figure 2 isv a fragmentary elevational view of the arrow at the juncture of the head and shaft;

Figure 3 is an elevational view on a reduced scale, portions being broken away, showing the device in use;

Figure 4 is a fragmentary view of a modification, partly in elevation and partly in section;

Figure 5 is an exploded perspective view of the modified form shown in Figure 4, illustrating the arrow head of the form of Figure 4;.and 1 Figure 6 'is a fragmentary perspective view of the shaft used in the form of the invention shown-in Figures 1 and 4.

Referring to the drawing in detail, designated generally at 10 is an arrow according to the present invention, This includes a shaft 12 having the usual tail feathers 14 and nock '16.

At the forward end of the shaft 12 there is provided a cylindrical, cup-shaped, metal ferrule ;18. This is of elongated formation, and .the front end of the body portion of the shaft is reduced slightly to receive the ferrule, as shown at 19. Therefore, the outer surface of the ferrule is flush. with the outer surface of the body portion21 of the shaft 12.

Designated at 22 is a pluralityv of explosive caps. These are of the same variety as used in childrens-cap pistols. Such caps are of flat formation, andare essentially provided with pockets in which the explosive powder is confined. The caps explode on impact, as is well known I y v I v Caps 22 are [disposed within a cylindricalbase 209i the arrowheadj24. Inthe form shown in Figures 1-3, the arrowhead is of sharp formation, and by reason of this arrangement'is adapted to penetrate the game.

This particular; shape of arrow head is, of course, some-- what akin tothat' which is conventional in huntingarrow heads. In accordance with theinvention, however, the

metal, tapered body 2510f the arrow head is integral with i the cylindrical, constant diameter base 20 the inner di-' ameter'of which is adapted to slidably receivethe ferrule 18 in the manner shown in Figure 1. The caps are held within thebase 2t), the base opening rearwardly to receive the'ferrule." Base 20, at its forward end, is integrally connected to the rear end surface 27 of the body 25 of the arrow head.

It will be observed that the arrangement is such that should the arrow head strike an object, it would tend to move rearwardly relative to the shaft, that is, the shaft would continue its forward movement even though the forward movement of the arrow head is abruptly brought entirely, or almost entirely, to a halt. Therefore, the caps will be exploded, and the gas created by the explosion cannot move rearwardly due to the closing of the rear 7 end of the base 20 by the ferrule. Therefore, the arrow head will be forcibly driven forwardly relative to the shaft, deeper into the flesh of the animal A in the manner shown in Figure 3. A concurrent result is that the shaft will be forcibly impelled rearwardly out of the animal, to drop to the ground so that it can be reused.

By reason of this arrangement, it is obvious that a how can be used that is of lighter poundage than that ordinarily required, at a particular, given range for both light and game, sufliciently tokill the same quickly and cleanly.

This permits hunting with bow and arrow to be employed by persons who ordinarily have 'had to refrain from indulging in this sport, due to inability to use heavy hunta s qw t u r r F I henthe arrow can be of-very lightformation, since there is nofine mechanism or springs, thereby facilitating its-employment in hunting with'bow: and arrow. Further,- the arrowtends to avoid breakage, resisting breakageto an extent far more than the'ordinary arrow. 1

If the arrow should strike a tree or the likefa'n' ordinary arrow tendsto become impaled in the tree to an extent such that its retrieving is impossible. The present invention, however, causes the shaft to be ejected rearwardly and-dropped-to the ground for reuse.

R eferring to ,Figures 4 and 5, amodification is here shown inrwhich the same shaft is used. The" arrow head,

30 is of globular formation, however, and integrally contra-taster; H i t a 1 This form of the invention is used in'situations in which the deer-or other game is too far away for a good shot. Byshooting over the deer, the arrow will strike'an object,

,nected to itsrear end surface 35 is a base 32 simjlartd and the caps will exploderon the other side of the deer,

in a' manner such that the noise will drive the deer closer to the hunter so that he may have a good shot. The principle, of course, remains unchanged. a 'It 'will' 'be apparentthat the invention possesses many said reduced portion being of constant'diameter from endto-end thereof; a cylindrical cup-shaped, metal ferrule on the reduced portion of the shaft, said ferrule extending the fulli length of said reduced portiontwith the outer surface of the ferrules-being flush with the outer surface of said remaining portion of the shaft over the full length of, the ferrule whereby. said shaft; over the full distance between its leading and trailing extremities, will be of constant external diameten the ferrule having a wholly,

closed leading end overlying the leading end of said re duced or o it e a t; o hea nc dins r metallic body atits leading end; and acylindricaLQconstantidiameter baseintegralwith said body and-projecting rearwardly'therefrom, said base having an axial recess the-inner diameter" of which is, constant; over, the full advantages not true of power heads previously devised for arrows. .Lightness is a characteristic of, the invention,

and low cost is also a characteristic. 1 The adaptability for retrieving the shanks of the arrows is also present;

andfalso the adaptability of insuring maximum penetra tion of the game despite relatively light weight that are being employed.

Itis believed apparent that the invention is notneceseerily-confined to the specific use or uses thereof described above, since it may be utilized for any purpose to which it may be suited." Nor is the invention-to be necessarily limited to the specific construction illustrated and described, since such construction is only'intended to be illustrative of the principles of operation and'the means presently devised to c'arry out said principles, it being considered that the invention comprehends any minor change of the appended claim.

' inicon'struction thatmay be'permitted within the scope 1 What'is claimed is:

' ame including an elongated shaft having length thereof and substantially matches the external :di-r ameter of the ferrulegthus'to snugly, slidably receive the ferrule, said ferrule and recess being substantiallyrco extensive in length, the. outer diameter of. said base being constant from end-to-end thereof and being slightly greater than the diameter of the shaft, the recess being formed with a flat inner'end surface disposed in a plane perpendicular to the length of the base, said closed end of the ferrule being, flat and being disposed in a plane parailelto the, plane of-said inner end of the recess wherebyrth'e inner end surface of the recess andsaid closed end offlthe ferrule constitute, an anvil and hammer respec- .tively ;';and a plurality of superposed percussion-type explosiv e capsinterposed between the anvil and hammer in said recess so as tobe detonated responsive to forcible directionof-the arrowhead against an object.

l Rfereuces cited inthe file of patent f I 5 UNITED STATES PATENTS, 7 4 500,772 Ettinger j Mar. 15,;1s9s 1,388,807 Duck Aug. 23, 1921 "1,538,778 Adams-.. r '1925 2,179,404 *l'f'abionar ,-f-- 71939;