US1638432A - Strand tightener - Google Patents

Description

Aug. 9, 1927.

N. D. coNNoRs STRAND' TI GH'T'ENER Filed Oct. 26, 1922 l INVENTOR.' /V bww/U BY A TT ORNEY Patented Aug. 9, 1927.

UNITED STATES A .1,638,432 PATENT oFFlcE.

NEILSON D. (ZONNORS,l OF HIGHLAND PARK, NEW JERSEY, .ASSIGNOR TO AMERICAN I TELEPHONE AND TELEGRAPH COMPANY, A CORPORATION OF NEW YORK.

STRAND TIGHTENER.

l Application med October 26, 1922. Serial No. 597,185.

This invention relates to tools for use in removing slack in guys or in tightening the so-called dead ends in suspension strand. The object of the invention is 'to provide a simple means of tightening lengths of strand or rope, such as those referredto A above, thus doing. away with lthe necessity of employing sets of blocks for this purpose.

Applicants tool operates on the principleof removing slack by thrusting or pulling out of line a short section of the length of strand, etc., to be tightened. Such a length is passed through the eye of an anchor-rod, for example, and the free end is attached to the guy a few feet from the rod by means of clamps. VThe tool is then applied to this section between the rod and the clamps and the desired tension is obtained by the operation of the tool, as hereinafter fully explained. Permanent attachment of the strand or rope is then made with clamps such as three-bolt clamps at a point between the tool and the rod. The strand having been thus secured at the desired tension, the

tool is removed, and the length of strand beynd the permanently placed clamps is cut o In general, applicants device has a curved env-shaped framework carrying a threaded-- rod, the rod being actuated in any suitable manner, as for instance, by a wrench. A grooved head or a hook, travelling with the rod, but so attached as not to turn with the rod, or internally threaded and travelling on the rod, pushes or pulls out of linea section of strand lying between the legs of the framework, in contact with which members the strand is made to pass by means of hooks or rollers properly placed. Several diierent designs of tightener will be specifically described below. All designs operate on the principle outlined above, the distinctions belng found in the structure of the framework, in the means employed for causing the strand or `rope to pass in contact with the leg members, in the relative arrangement of the rod and the hook, or in the specific manner in which 'the strand is displaced from line. It is understood that the invention ma be embodied in many otherV forms which o not depart from the principle or from the general formA of device broadly claimed below. y

In the accompanying drawing, Figures 1,

u 2 and 3 show different desirab e embodiments of applicants invention. In the device shown in side elevation in Fig. 1, a section of strand is thrust or pushed out of line. In the tools of Figs. 2 and 3, shown in perspective, the section of strand is pulled out of line.

With reference to the details of Fig. 1, the ltramework comprises the two curved legs 1 and 2 and a middle portion 3. Through this middle portion passes the threaded rod '4, which is actuated by a hand 'wrench 5. At its lower extremity the threaded rod 4 carries a pivoted head 6, grooved at 7 on its lower surface to receive the strand or rope. The strand or rope passes over upwardly pointed hooks 8 and 9 placed near the extremities of the legs 1 and 2, respectively. A section of strand thus held in place between the hooks 8 and 9 will be thrust downwardly out of line upon the actuation of the threaded rod 4, the strand sliding over the hooks as-it is displaced by the rod head 6.

Fig. 2 shows-a second -tool operating on the same principle Aasl the, Iirst but distinguishedfrom the first in several particulars. The framework comprises two side ' members 10 and 11, each an inverted V in shape, held-in separated relation by bolts. A threaded rod 12 passes downwardy bem tween the two side members and is actuated by a'hand wrench 13. The rod 12 carries pivoted at its lower extremity a hook 14,` over vwhich the strand passes. Fitted between the extremities of the side members 10 and 11 are two rollers 15 and 16. These rollers are placed-on the given 'length of strand, which lies belowthem. When the rod 12 is raised by the turning of the wrench 13, the hook 14 pulls the strand upward, the sections on either side of the tool being drawn under the rollers.` The tool shown in Fig-` 3, like that of' Fig. 2, has a framework composed of two side members, 17 and 18, each of the general shape of an inverted .V; but the lower portions of these side members are joined by s two cross-bars, the nearer one bein shown.A as 19 in the drawing. The thread rod 2 0 extends downward to a point below the` cross-bars and has no vertical 'movement upon the operation of the device. The up wardly pointed hook 21 is carried on a rec= tangular block 22,' which is internally threaded and travels upward or downward l upon the threaded rod 2O when the latter is actuated. A vertical member 23 joins the top portion of the side member 18 with the corresponding cross-bar and extends downward as far as the lower extremity of the threaded rod 20. The lower end of this member 23 is bent at right angles with the body of the member, and forms the lower support for the threaded rod 20. x The rod 20 passes through this end ofthe member 23 and is held in place b riveting or by any other suitable means o attachment. This member 23, in addition to supporting the lower end of the threaded rod 20, adds strength to the framework and serves as a guide for thev hook 21 by reventing an-y considerable turning of the block 22 which carries the hook. The point of the hook, as

shown in the drawing, is away from the vertical member 23. For pur oses of clear illustration, the degree to w ich the hook extends outward from the block is exaggerated. It is understood that the block and hook will pass freely between the crossbar 19 and the corresponding opposite cross# bar. It is obvious that the tool shown in Fi 3, with its arrangement of rod and hodgk and its reinforced frame, has far greater displacing power than the tools shown in the other two figures of the drawing.

It is to be understood that any suitable actuating device may be used in connection with the threaded rod of applicants tightener in any of its form's. As indicated above, the figures of the drawing show certain desirable embodiments of. applicants invention but do not limit it to the forms therein described, serving merely as specific illustrations of the invention, which is claimed below.

What is claimed is:

1. A tool of the class described, comprising a framework consisting of two side members, fixed in separated relation, each of said side members being of the shape of an tion of said framework between the two side members and extending between the'two cross-bars to a point below said cross-bars;

and an internally threaded block designedV to travel vertically on the threaded rod and carrying an upwardly pointed hook, said hook being designed to grip and pull upward and out of line a given length of strand upon actuation of saidrod.

2. A tool of the class described, comprising a framework consisting of two side members, fixed in separated relatien, each of said side members being of the shape of an inverted V with the bottom closed by a cross-bar; a roller at each of the lower corners of said framework, between the two side members, designed to bear downward against a given length of strand; athreaded rod passing through the upper portion of said framework between the two side members and extending downward to a point below the cross-bars; a rectangular and internally threaded block travelling vertically upon the threaded rod upon actuation of said threaded rod and carrying an upwardly pointed hook designed to grip and pull upward and out of line said length of strand; and a vertical bar joining the upward portion of that side member away from the point of the hook with the middle section of the corresponding cross-bar, said vertical bar being extended below said cross-bar as far as the lower extremity of the threaded rod and being bent at right angles to form a support for the lower end of the threaded rod, said vertical bar serving in 4addition as a guide to prevent turning of said hook.

In testimony whereof, I have signed my name to this specification this twentieth day l0 of October, 1922, l NEILSON D. CONNORS.

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