US1891497A - Grip - Google Patents

Description

Dec. 20, 1932. T. BIRKQENMAIER I 1,891,497

- GRIP Filed May 15. 1951 2 Sheets-Sheet 1 FIG]:

Dec. 20, 1932. 'r. BIRKENMAIER 1,891,497

GRIP

Filed May 15, 1931 2 Sheets-Sheet 2 Patented Dec. 20, 1932 UNITED. STATES THEODORE BIIB'KENMAIEB, OF ST. LOUIS, MISSOURI, ASSIGNOB-TO' W. MATTHEWS PATENT: OFFICE CORPORATION, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI GRIP Application filed May 15,

' This invention relates to grips, and with regard to certain more specific features to grips for guying and fastening wire, rope, cable and similar strands.

Among the Several objects of the invention may be noted the provision of an improved grip which is adapted to guy and/or fasten wire, rope, cable, and similar strands; the provision of a grip of the class described, which is adapted to tightly grip a cable passing therethrough and which is easily applied to, removable from, and adjustable on the strand; and, the provision of a grip of the class described which is reenforced at contacting points and which is simple and cheap to manufacture. Other objects will be in part obvious and in part pointed out hereinafter. p

The invention accordingly comprises the elements and combinations of elements, fea tures of construction,'and arrangements of parts which will .be exemplified in the structure "hereinafter described, and the scope of the application of which will be indicated in the following claims.

In the accompanying drawings, in which are illustrated two of various possible embodiments of the invention,

Fig.1 is a perspective view showingrthe invention applied to a twisted service cable;

Fig. 2 is a detailed and enlarged top plan view of one form of the invention applied to a cable;

Fig. 3 is a front elevation of Fig. 2;

Fig. 4 is an enlarged rear elevatlon of Fig. 2;

Fig. 5 is a view similar to Flg. 2 showing a modification of'the grip;

Fig.6 is a front elevation of Fig. 5;

Fig. 7 is arear elevation of Fig. '5 and,

Fig. 8 is a bottom plan view of Fig. 7.

Similar reference characters indicate corresponding parts throughout the several views of the drawings.

Strand, such as shown in Fig.1 at numeral 1 strung "between a .pole and a "house or between other such objects, subjects its ter-- minals 3 to strain, such that the terminals are required 'to be unnecessarily large to effectively resist the-strains. Larger termi- 1931.- Serial no. 537,654.

meral 19 which'are fastened at one end to the wire 1, and at theother end to a suitable anchor or the like 11. In this way substan-' tially all pulling is removed from the terminals 3 and the guys Q'assume the weight and pull of the wire 1.

I have provided an improved grip 9 for the cables 1. such as described and shown in Fig. 1, which is easily applied to the strand 1, which is easy and cheap to manufacture, and which provides a positive grip around the strand 1 under all loads, increased load effecting tighter gripping. v I

Referring now more particularly to Figs 2 through 1, there is shown a preferred form of a grip 9 of the invention applied to the strand 1. It is to be understood that the term strand as used in this specification in-' cludes all materials used as strands, and accordingly includes plain and twisted service cable, rope, cable, wire and the like.

The grip 9 is formed by looping a wire 12. The wire is weatherproof and is preferable relatively limber and formed from a plurality of twisted strandsas shown in Fig. 4. The multiple strand is more flexible than a single strand havingtthe same strength. A single wire may be used, however, in certain instances. are overlapped and joined as shown at numeral 13, 'by' solder or by pinching a metal bandtherearound. The overlapped portion of the wire 12 as shown at numeral 15' provides an anchoring portion. The portion .15 is also one end of the main Sloop formed'by joining the ends of the wire 12. The opposite end 17 of'the main loop is-looped'twice to form the loops 21f andu23, each -loop-comprising two passes .of wire 12. 'The outer leads from the loops 21 and '23 respectively terminate at the end 17 and at the portion 18 of the main loop. Thelatter'portion 18 is drawn through the end 17 which forms :a noosezand grip. Thus :by pullingonthe handle 15, both of the end leadsfof the loops 21 Juxtaposed ends of the wire 12 and 23 are pulled and consequently the loops are made smaller.

The loops 21 and 23 may be formed over a molding rod or the like which preferably is slightly larger than the wire for which the grip 9 is to be used as a guy.

The application of the grip 9 to a strand such as 1, is as follows:

The loops 21 and 23 are slipped over the end of the strand 1 before itis fastened to the terminal 3. Inasmuch as the loops are manufactured in different sizes, a size is chosen which readily slips over the. strand 1. If however, the strandl is larger than the loops 21 and 23 the lead 18 is pushed back through the noose 17 and'the loops made large enough to receive the strand '1. The handle is now anchored, as shown at numeral 11, and the pull of the handle on the lead 18, pulls the lead through the noose 17 whereby both of the loops 21 and 23 are tightened around the cable 1. Thus the end of the strand 1 is relievedof pull and may be readily fastened to the terminal 3.

The friction created by the pressure of the four passes of wire l2 around the strand 1 is ample to provide a substantially non-slipping grip between the grip 9 and the strand 1. In the event, however, that much smaller strands are to be guy'ed,'especially if such strands are not insulated, it may be expedient to provide more loops such as 21 and 23 to effect sufficient friction between the grip 9 and the strand 1.

The wire 12 from which the grip 9 is formed is preferably sufiiciently stiff to maintain the shape of the loops 21 and 23 after they are formed on the mold or the like.

An advantage of the grip 9 as illustrated in Figs. 2 through 1 is the simple, strong construction and the wide range of adjustment which isprovided by slipping the lead 18 through the noose 17. Thus, although the grips 9 are preferably made up for definite sizes, if the various sizes are not available at the time of installation on the cable 1, the loops 21 and 23 may be enlarged at the time of installation.

Another advantage is the reenforced or doubled portion of the grip 9 provided at strategic points. Thus the handle 15 has double passes of the wire 12 and likewise each loop 21 and 23 has double passes.

Referring now to the modification shown in Figs. 5 through 8, the grip 9 comprises a set of two wires 12, the ends of which are overlapped and fastened as shown at numerals 13, whereby a large loop is formed. The wire 12 is similar to that used in the Fig. 2 modification. The ends, as shown in Fig. 5 are fastened by means of metal bands 29 pressed to firmly hold the wire ends together. It is to be understood that the ends may be joined in any'other suitable way such as for instance by solder or the like. The single loop formed by joining the ends of the wires 12 is divided into two loops, by a band 30, similar to the bands joining the ends of the wires 12. One of the loops thus formed, and having the four passes, is adapted to be anchored or otherwise secured as at hooks 11. The other loop 18 is twisted and looped to form the loop 31. The leads 33 and 35 from the loop 31 pass through the band and form the handle 25. Thus a pull on the handle25, pulls the leads 33 and 35 and tends to tighten or reduce the loop 31. The band, 30 serves to maintain the correct shape of the grip 9 prior to its application to a strand 1.

As in the other modification the loop 31 is formed around a molding strand or rod which is preferably larger than the strand 1 for whigh the grip 9 is to be used. When the grip 9 is slipped over the strand 1, the loop 25 as before is 'secured'to a hook 11. It is noted that the four passes of strand over the top of the loop 25 provide an even stronger handle than the two passes provide in the handle 15. q

The band 30 may be so positioned that the loop 17 is large enough to form more than one loop 31 in the event that more frictional contact is desired between the strand 1 and the grip 9.

It is to be understood that the method with which the loop 31 is formed maybe varied. Thus the wires 12 maybe looped, with or without the aid of a mold and prior to the application of the bands 29 and 30. Like wise the number of wires12 may be varied to meet the requirements of the grip.

An advantage of the last-described modification is the fact that a' plurality of wires 12 may be easily used toprovide a grip 9 adapted for extra heavy duty. This greater strength is further enhanced by the fact that there are no sharp turns in the grip 9, at which a force is all applied on a relatively small area. The band 30 is made sufficiently large to distribute the forces it receives over a relatively large area. V

A further advantage of the invention of both modifications is that they are adapted to be used on any type of wire 1. Thus in Fig. 2 a twisted insulated strand 1 is shown, whereas in Fig. 5 the wire l is single and uninsulated. Usually,'if the strand 1 is insulated, a grip 9 having fewer gripping loops may be used because of the greater friction offered by the insulation.

In view of the above, it will be seen that the several objects ofv the invention are achieved and other advantageous results. attained. i p

As many changes could be made in carrying out the above constructions without depart-- ing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

I claim:

1. As an article of manufacture a grip comprising a multiple strand, a noose formed with said strand, and a loop also formed with said strand, one lead of said loop terminating with said noose and the other lead of said loop passing through said noose, said strand being formed from wire adapted to hold a shape, and said loop being adapted to receive and grip a strand to be guyed and passing therethrough.

2. As an article of manufacture a grip comprising a multiple strand, a noose formedwith said strand, and a loop also formed with said strand, one lead of said loop terminating with said noose and the other lead of said loop passing through said noose, said strand being formed from wire adapted to retain a preformed shape, and said loop being adapted to receive and grip a strand to be guyed and passing therethrough, said gripping action being enhanced by pull on said lead passing through said noose.

3. As an article of manufacture a grip comprising a strand, the ends of said strand bein joined whereby a length of double strand is formed, at least one loop formed with the end of said double strand opposite said joined ends, one of the leads of said loop being the end of said double strand, the other lead from said loop passing through a noose formed by the end of said double strand, said loop being adapted to receive and grip a strand to be guyed and passing tlierethrough, said gripping action being enhanced by pulling on said joined ends. 7

l. As an article of manufacture a grip comprising a multiple strand formed from relatively stiff wire, the ends of said strand being joined whereby a length of double strand is formed, at least one loop formed with the end of said double strand opposite said joined.

ends, one of the leads of said loop being the end of said double strand, the other lead from said loop passing through a noose formed by the end of said double strand, said loop being adapted to receive and grip a strand to be guyed and passing therethrough, said gripping action being enhanced by pulling on said joined ends and said joined ends being overlapped to form a reenforced handle portion.

5. As an article of manufacture a grip com prising a multiple strand formed from relatively stifi wire, the ends of said strand being joined whereby a length of double strand is formed, a plurality of loops formed with the end of said double strand opposite said oined ends, one end lead of said loops being the end of said double strand, the other end lead from said loops passing through a noose formed by the end of said double strand, said loops being adapted to receive and grip a strand to be guyed and passing therethrough.

6. As an article of manufacture a grip comprising a multiple strand formed from relatively stiff wire, the ends of said strand being joined whereby a length of double strand is formed, a plurality of loops formed with the end of said double strand opposite said joined ends, one end lead of said loops being the end of said double strand, the other end lead from said loops passing through a noose formed by the end of said double strand, said loops being adapted to receive and grip a strand passing therethrough, said loops being adapted to resist deformation when a strand is not passed therethrough. I

7. As an article of manufacture, a grip comprising a strand, theportions near the ends of said strand being'joined to form a supporting loop, a gripping loop formed by an extension of the strand from the supporting loop, said gripping loop comprising leads completely surrounding a strand to be guyed and helically arranged thereon to effect a tightening grip on the guyed strand when it is supported by said gripping loop.

8. As an article of manufacture, a grip comprising a strand, the portions near the ends of said strand being overlapped and joined to form a supporting loop, said sup porting loop thus comprising more strands than the remainder of the article, a gripping loop formed by an extension of the strand from the supporting loop, said gripping loop comprising leads completely surrounding a strand to be guyed and helically arranged thereon to effect a tightening on the guyed strand when it is supported by said gripping loop.

9. As an article of manufacture, a grip comprising'a strand, the portions near the ends of said strand being joined to form a supporting loop, a gripping loop formed by an extension of the strand from the supporting loop, said gripping loop comprising leads completely surrounding a strand to be guyed and helically arranged thereon to effect a tightening on the guyed strand when it is supported by said gripping'loop, said gripping loop comprising substantially one turn about the guyed wire.

10. As an article of manufacture, a grip comprising a strand, the portions near the ends of said strand being joined to form a supporting loop, a gripping loop formed by an extension of the strand from the supporting loop, said gripping loop comprising leads completely surrounding a strand to be guyed and helically arranged thereon to effect a tightening on the guyed strand when it is supported by said supporting loop, said gripping loop comprising a plurality of turns about said guyed wire.

In testimony whereof, I have signed my name to this specification this 11th day of d

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