US2406270A - Vibration dampening splice - Google Patents

Description

- Aug. 20, 1946. 1.. c. TORELL m4 4 2,406,270

VIBRATION DAMPENING SPLICE Filed Aug. 1'7. 1-944 2sneets-sh et 1 4 344W L.L.7 0I'6'ZI/ Patented Aug. 20, 1946 VIBRATION DAMPENING SPLICE Leland C. Torell and William E. White, Bethlehem, Pa., assignors to Bethlehem Steel Company, a corporation of Pennsylvania Application August 17, 1944, Serial No. 549,936

9 Claims.

Our invention relates generally to the forming of loops or eyes in the ends of multiple strand guy wires, cables, and the like, and more particularly to a means and method of fastening the returned end, in making said loops, to the main guy wires. One of the objects of our invention is to provide a splice or connection between the end of a guy wire and its body which possesses vibration dampening characteristics.

Another'object of our invention is to provide a novel splice or connection between wire cables which will connect said cables so that they possess vibration dampening characteristics.

Other objects and advantages will be more fully understood upon reference to the specification and accompanying drawings, in which Figure 1 is a plan view of one form of our invention showing aloopcd wire cable with the wires of the returned end cut to different lengths;

Fig. 2 is a plan View showing a tiewire fastening the returned end to the main body of the cable shown in Fig. 1; and

Figs. 3, 4, 5 and 6 are plan views showing an alternative form of the invention shown in Figs. 1 and 2.

Referring now to the drawings more in detail. II! is a wire cable having a plurality of wire strands H, l2 and I3. The terminal portions or ends of the strands H, l2 and [3 are not coincident but are shown cut to different lengths, strand l2 extending a short distance beyond strand II, and strand 33 extending a short distance beyond strand l2. The cable Hi is shown returned upon itself forming a loop or dead end 14, the end portion l 5 of the cable being in engagement with the main body portion l5 cf the cable. In the form of our invention shown in Figs l and 2, a tie wire I1 is then Wound or served tightly in a close lay helix is around the end portion l5 and body portion it of the cable. The close lay helix 3 extends from immediately adjacent the loop M to a point adjacent the end of strand I I. From this point on the winding of the wire I! is continued in a broad lay helix l9 about the cable [0 to a point on the main body portion l6 of cable It) shortly beyond the end of the last remaining strand I3.

In the form of our invention shown in Figs. 3 to 6 inclusive, the cable Ii! after being'returned upon itself to form a loop I4 is served or wound with a tie wire in a close lay helix Zl around the end portion l5 and body portion I6 of the cable It]. When helix 2| is completed, strand ll,

2 I the end of which extends a substantial distance beyond the end of the close lay helix 2|, is wrapped in a broad helix 22 about body portion iii of cable l0 and strands l2 and i3. When this is completed, as shown in Fig. 4, strand I 2 is wrapped in a broad helix 23 about the body portion 16 and strand l3 as shown in Fig. 5. The assembly as shown in Fig. 6 is completed by wra ing the last strand l3 in a broad helix around the body portion Hi.

The gradually decreasing reenforcement obtained bycutting the wires of the return portion I5 of the cable I0 to different lengths as shown on the drawings, will prevent sharply localized stresses, and either by serving tie wires ll first in a closely laid helix It! for holding strength and then. in a gradually broader lay helix I?! to' end of the last Wire !3 of return portion l5, as shown in Figs. 1 and 2, or by serving wire 2i! in a closely laid helix 2| for holding strength and then serving the end wires ll, l2 and I3 individuallyin broad helices as shown in Figs. 3, 4, 5 and 6 and as described heretofore, vibration dampening i accomplished with eifectiveness and in a manner unknown in the prior art.

Our invention is particularly useful for fastening long guy wires or cables to anchoring devices and the like. In installations of this sort, vibrations or bending of the cable resulting from wind, etc. is a serious problem. Our improved assembly, as shown on the drawings, is designed to prevent sharply localized bending stresses, thus greatly minimizing the damage to the cable from said vibrations.

While we have shown our invention ina plurality of forms, it will'be obvious to those skilled in the art that it is not so limited, but is susceptible of various other changes and modifications without departing from the spirit thereof, and we desire therefore, that only such limitations shall be placed thereon as are imposed by the prior art or as are specifically set forth in the appended claims. I

Having thus described our invention, what We claim as new and desire to secure by Letters Patent is:

1. A vibration dampening cable splice comprising two multiple-strand cables, one of said cables having strands of different lengths providing an end portion of varying thickness, and means com.- prising a tie wire binding said end portion of said cable to the other cable.

2. A vibration dampening cable splice comprising two multiple-strand cables, one of said cables comprisingan end portion having strands of ap preciably different lengths, and a tie wire binding said cables together adjacent said end portion in a close-lay helix and over said strands of different lengths in a broad-lay helix.

, 3. A vibration dampening cable splice comprising two multiple-strand cables, one of said cables comprising an end portion having strands of different lengths, a tie wire binding a' portion of said end portion to the other cable, and said strands of different lengths binding the remainder of said end portion to said other cable. 1

4. A vibration dampening cable splice co1nprising two multiple-strand cables, one of said cables comprising an end portion having a short strand, a medium-length strand, and a long strand, a tie wire binding a portion of said end portion to the, other cable, said short strandof I said end portion binding said medium-length strand and said other cable, said medium-length strand of said 'end portion binding said long strand and said other cable, andsaid long strand binding said other cable.

5. A vibration dampening cable splice for a multiple-strand cable having a body portion and an end portion returned upon said body portion to form a loop, said splice comprising said body portion and said end portion,- said end portion comprising strands of appreciably different lengths terminating at different points along said an end portion returned upon said body portion to form a loop, said splice comprising said body portion and said end portion, "said end portion comprising strands of appreciably, different lengths terminating at differentpoints alongsaid 4 body portion, and a tie wire binding said end portion to said body portion in a close-lay helix adjacent said loop and over said strands of different lengths in a broad-lay helix from said close-lay helix to the end of said strands.

tion, a tie wire binding a portion of said end portion to said body portion and said strands of different lengths binding the remainder of said end portion to said body portion.

8. A vibration dampening cable splice comprising a multiple-strand cable having-a body portion and an end portion returned upon said body portion to form a loop, said splice comprising said body portion and said end portion, said end portion comprising a short strand, a medium-length strand, and a long strand, said strands terminating at different points along said body portion, a tie wire binding the portion of said end portion adjacent said loop to said body portion, said short strand of said end portion binding said mediumlength strand and said long strand and said body portion, said medium-length strand of said end portion binding said long strand and said body portion,'and said long strand binding said body portion. I r

, 9. A vibration dampening splice comprising two members, one of said members comprising an end having portions of different cross-section, and

a tie Wire binding said portions of different crosssection to the other member.

LELAND C. TOREL WILLIAM E. .WHI'IE.

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