US2508521A

US2508521A - Bowstring and method of making same

Info

Publication number: US2508521A
Application number: US771187A
Authority: US
Inventors: Nathaniel B Lay
Original assignee: Individual
Current assignee: Individual
Priority date: 1947-08-29
Filing date: 1947-08-29
Publication date: 1950-05-23
Anticipated expiration: 1967-05-23

Description

May 23, 1950 N. B. LAY 2,508,521

BOWSTRING AND METHOD OF MAKING SAME Filed Aug. 29, 1947 In ventar Nathaniel 3. Lay

By WW 8% Patented May 23, 1950 i Nathaniel B. Lay, Pine Blufi, Ark. Application August '29, 1947, Serial No. 771,187

8 Claims. (Cl. 28-74) My invention relates to improvements in methods of making archery bowstrings of the multiple strand type exemplified in my U. S Letters Patent No. 2, 271,173 dated January 17 1942. I The primary object of my invention is to proend loops in less time than can be accomplished by present practices, and with the strands arranged to be uniformly tensioned, relatively,

vide for forming multiple strand bowstrings with throughout the strings, under reaction of the bow,

To the accomplishment of the above, and subordinate objects presently appearing, a preferred practice of my improved method has been illustrated in the drawings accompanying and forming part of this specification, set forth in detail in the succeeding description, and defined in the claims appended hereto.

In said drawing:

Figure 1 is a view in perspective illustrating the manner in which the strands for forming the bowstring are pulled out to even the ends thereof;

Figure 2 is a similar view illustrating the manner in which the ends of the strands are folded preparatory to applying the sheath;

Figure 3 is a view in perspective illustrating the manner in which the sheath is applied;

Figure 4 is a similar view further illustrating the manner in which the sheath is applied;

Figure 5 is a view in perspective illustrating the manner in which the loop is pre-formed;

Figure 6 is a view in perspective illustrating the manner in which the loop is finished;

Figure '7 is a detail view in transverse section taken on the line 1-1 of Figure 4;

Figure 8 is a view in perspective illustrating the manner in which my method may be practiced in applying a sheath to the middle portion of the bowstring.

Reference being had to the drawings by numerals, and first to Figures 1 to 7 thereof, according to the practice of my method as illustrated therein, in forming the bowstring the ends of a suitable number of strands I, of linen, cotton, or other suitable material, and sumcient in number to provide for the requisite strength in the bowstring are grasped by one hand and pulled out straight so that said ends are substantially even and as illustrated in Figure 1. 1

A loop is formed at one, or each end, of the strands I, as may be required, and as follows.

2 The ends of the strands I, while grasped by the one hand, are folded over a, flexible wire 2 held in the other hand and which is bent upon itself into a loop 3, all as shown in Figure 2. Thus the ends of the strands I are folded over the wire 2 preparatory to applying the sheath for the loop. p The wire 2 is next inserted through av suitable length of tubular sheathing 4, such as tubular shoe or corset lace, or the like, as shown in Figure 3, and with the folded ends of the strands I held at the adjacent portion of said strands .to prevent said ends from slipping and becoming unfolded.

The wire 2 is next pulled through and out of the length of sheathing 4, as shown in Figure 4, so as to pull the folded ends of the strands through and out of said sheathing and then unfold said ends and free the same. A sheath is thus formed around an end portion of the strands l of sufficient length to cover the end loop. when completed.

The sheathed end portion of the strands I, designated 5 in Figure 5 is then folded at its approximate center around a fixed peg 6, as shown in Figure 5, to pre-form the loop and the freed ends of the strands l are then sized to the adjacent portion of the strands as represented by dotted lines in Figure 5, and by means of glue, latex, or any other suitable means, not shown.

The sized ends and the adjacent portion of the strands l to which the same are sized, together with the ends of the sheathing 4, are now wrapped, as at 8, to bind the same together, by suitable means such as cord and as shown in Figure 6.

Thus, a loop 1 is completed on the end of the string with a sheathing 4 covering the same to prevent chafing of the strands and reinforcing said loop.

The entire string, except the loop I, or loops, may be twisted, or the strands left loose, as desired.

The described method may be practiced in part in applying a sheathing 9 to the central portion of the bowstring as shown in Figure 8. The sheathing 9 may be applied in substantially the same manner as described with reference to the sheathing 4 and slid along the strands l0 into proper position to be secured thereto by binding the ends of the same to said strands ID, as represented at H.

The foregoing will, it is believed suffice to impart a clear understanding of my invention, without further explanation.

Manifestly, the invention, as described, is susceptible of modification without departing from the inventive concept, and right is herein re-- served to such modifications as fall within the scope of the appended claims.

What I claim is:

1. The herein described method of forming archery bowstringscomprising arranging a plurality otstrands'side by side zwith-tthe endseven at one iendgofg-said strands, folding. said endsto form a loop, pulling'said loop through a tubular sheathing so as to apply the sheathing over saidstrands and then vpulling the loop unfolded so as to free said ends, and securing memes-eras sheathing to said strands.

2. The herein described method oi forming?an archery bowstring comprising arranginga plurality of strands side by sidewith-t1ie-efidsvrr at one end of said strands, folding said ..ends to. form a loop, pulling said loop through a tubular sheathing. so ast'o apply said sheathing to a portiontof said strands and' the'rfpulling' said loop unv folded to free said ends, folding the" sheathed portion offsaid" strands to'form a' loop; and se'- curing the free ends to an intermediate portion of said strands to close the'loop'. V I

3. Thehe'reih described" method of formihgj ari archery bowstring comprising, arranging a 'plii rality of strands side pbyi-sid'eiwithi the end's leven atone end of said strands; folding said mats T form a' loop, pifillingj saidlloop' throughf a'tub'ular sheathing: So as to apply the sheathing to a poi tionl'of saidi strands andifthen. pulling said loop unfolded to f're'sa1d'ends'; folding the sheathed portion-lot the strands to form a loop sizing'isaid free Lends'f to? an." intermediate portion of the strands and wrapping saidlsi'zed ends andintec mediate portion.

20 it m-pressed gin a" lgi'lliia 5;. The herein described method of forming an a 'hery bowstring comprising arranging a plur ity of strands side by side with the ends even at"; one end of said strands, pulling said ends 5 through a tubular sheathing to free said ends and apply the sheathing to a portion of the strands said ends projectingoutv .of said. sheathing, f'i'olfd ing the sheathed portion. of; the strands to form a loop, and securing the projecting ends to lfl -iairr intermediate portion of said strands.

, 5 The method of forming a bowstring which so iss ar i anging a plurality of threads in "side -by' side relation longitudinally to form a main body portion, telescoping preformed tex- 15 tile sleeves over the ends of the thread, bending 25 loopslaiid securirfg the bent'o er ends't6 6hemain "T. A "owstr'irig-hai ing"end-loops of prfdriiied textile sleve telescoped' over-the-eiids 'ofthe main body poi tio textile 'tiibula'r (sleeves? telescoped over the ends of the, m ain'jo'ody portion; ands'eryings of thread to "bindthdlodfiehdt to saidbody portion;

v NATHANIEL B.

V Nomeferences --eited.-