US2421878A - Device for tying wire around an article - Google Patents

Description

A. GUBSER ET AL DEVICE FOR TYI NG WIRE AROUND AN ARTICLE File d Feb. 10, 1944 Jung 10, 1947.

[222/272 fan's Patented June 10, 1947 UNITED STATE anew-012.1 01; TYING inn ARTICLE Anomu) Anton Gubser, Riedern, andhntonBroder,

Sargans, Switzerland 1 Application February 10, 1944, Serial No. 521,882

In Switzerland J anuary 30, 1943 This invention relates to a device for tensioningand securing pieces of binding wire which are initially in U-shaped pieces and which are shaped-intoa ring by pulling the free ends through the bent orloop portion of the U. The

shanks of awire are applied to the article that is to be tied and are bent back against the wire loop so as to secure the binding wire on the article, for which purpose a number of tensioning arrangements have already been proposed which, during manipulation, require their front end to be applied to the wire loop of the binding wire. In order "to be ableto draw the binding wire as tightly as possible, a small wire loop must be employed, and also it must be possible to equalize the pull on the two wire ends.

In order adequately to fulfill the aforesaid conditions, the tensioning device of the present invention differs from previously known arrangements by providing a front stem shaft portion "receiving the 'two wire -ends, said frontiportion being longitudinally adjustable from a rear shaft portion -to which a-two-armed tensionin lever is pivoted for limited movement, the two arms of which-are each provided with a clamping means for holding the wire ends.

This, on the one hand, even if the binding wire has only a small loop, makes "it possible to apply the tensioning device to the wire loop in more positive fashion inasmuch as the front shaft portion is suitably guided on the wire ends spread along its longitudinal ends, whereas, on the other hand, due to the limited pivotal movement of the tensioning lever, it is possible to equalize the pull on the wire ends so that both wire ends will be uniformly drawn up. It is therefore possible by using binding wire of suitable length also to wind this in supplementary fashion around the article that is to be tied.

Fig. 1 shows the tensioning device in position of use in an axial section through the stem;

Fig. 2 is a top plan view of Fig. 1;

Fig. 3 shows a cross section on the line III-III in Fig. 1;

Figs. 4 and 5 illustrate two different working" 'z oiaims. (Ciel-gas) 8 with which a clamping screw dis associated.

ries a tensioningscrew 3 serving as an abutment for the front stem part I which is provided with a longitudinal slot 4 for the passage of a pin 5, which is transversely arranged on the stem part 2. 0n the end portions of this pin a two-armed lever G is mounted which surrounds the stem. The lever 6 is provided with an oblong opening I for allowing limited pivotal movement of this leverrelative to the'stem about'the bearing pin 5. Each arm of the lever -6 is provided with a hole whe front stem part l has On its outer end a conical taper and is provided within the embraceof this taper with two diametrically opposed longi tudinal grooves ill. i

-For 'the purpose of carrying out the method according to this inventions. piece of wire of sumcient length is cut off of the supply wire of an appropriate thickness.

This wire piece is bent double into 'U-shape, as shown in Fig. 4,which can be done, for example, with the aid of a template. The wirework blank thus formed is then brought into the form of a ring and its two shanks l I are pulled through effected by hand exclusively.

As shown in Fig. 5, the wire work blank is formed into a rectangular ring [3 in adaptation to its use consisting, for example, in providing a tie about a beam [4 which on its backside has a longitudinal fissure (as indicated in Fig. 2), as a defect liable to end in failure. It will be understood that the wire work blank can in most simple manner be formed into a rectangular ring directly on the beam l4.

After the ring [3 has been arranged on the beam l4 and the tensioning device applied to the ring, the wire shanks H are spread apart and separately inserted in the longitudinal grooves ID of the front stem part I and introduced into the holes 8 in the lever B and clamped fast to this lever by means of the clamping screws 9. Thereupon, the tensioning screw 3 is turned in the proper direction to displace the rear stem part 2 axially along the circumference of the stem part I backwardly, the latter part abutting against the wire ring 13, that is, the beam M.

The bearing pin 5 for the lever 6 shares in this displacing movement, whereby the wire shanks H are tensioned by means of the lever 6, in consequence whereof the wire ring I3 is tautened against the beam l4 so as to closely draw to it more and more of the wire and eventually engages the beam with a snug fit. Due to the fact that the lever 6 engaging with the two wire shanks l I is pivotally mounted on pin 5, the effect of tensile load on the two wire shanks, which is initially unequal in most cases, is equalized.

After the wire ring I3 has then been tightened upon the beam l 4 in the required manner the two wire shanks H are bent backward at the yoke l2 of the wire loop in the corresponding direction of tensioning by appropriately tilting the stem I, 2 about the bearing point presented to it by the beam l4. 'I'hereupon the wire shanks II are released from engagement with the lever 6 so that the tensioning device can be removed, whereupon the wire shanks H are cut off to appropriate length permitting the formation of closed eyelets with the wire ends by driving said ends inward to some extent for example, with a. hammer, in which way a secure closure is obtained, as shown in Fig. 6. The longitudinal grooves l 9 arranged in the conically tapering free end of the front stem portion l of the tensioning device for the reception of the spreading wire shanks ll guide these shanks safely in a manner to facilitate their tautening.

As shown in Fig. 7, the wire ring [3 effected in the precedingly described fashion is well suited for forming a solid tie between a rubber hose I and a'tubular metal piece l6. On the free end of the piece IS a second rubber hose may be pushed and fixed by means of a wire ring to the piece IS in a manner similar to the fixin of the rubber hose l5, so that it is possible to unite two rubber hoses with each other into a conduit by means of a tubular piece.

Obviously, various further examples of practical application of binding wire in accordance with the invention could be given.

We claim:

1. A wire-tensioning device comprising a stem composed of two telescopic parts, a screw for forcibly moving one of said parts axially with respect to the other, one of said parts having a tapered outer end provided with a pair of oppositely disposed wire accommodating grooves, said one part having a longitudinally extending transverse slot, a pin extending through said slot and through the other portion of said stem whereby the pin is free to move axially with respect to the stem part having the tapered end, a two-armed lever pivotally mounted, on said pin, and means in the ends of said lever equidistant from the axis of the pin for clamping the shanks of the wire, whereby when the means for forcing the parts of the stem is actuated the shanks of wire are drawn through the loop of wire with equal tension, regardless of difference in length of the two shanks of the loop.

2. A device for tensioning and securing binding wire formed in pieces bent double in U-shape comprising, a shaft composed of a front portion and a rear portion, means for adjusting the front and rear portions of the shaft longitudinally, the front portion being tapered toward its front end and being provided adjacent said end with two oppositely located longitudinally extending grooves adapted for receiving and guiding the shanks of nally of and including the axis of the shaft, and

means for clamping a wire shank on each of the lever arms at equal distances from the axis of pivoting.

ANTON GUBSER. ANTON BRODER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS

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