Method of manufacturing an endless loop
A method for manufacturing a rope structure comprising providing, around a first roller and a second roller, a loop including a plurality of twisted strands. The method further comprising feeding a plurality of body strands onto the loop, feeding including, with the plurality of body strands connected to the loop, moving the loop about the first roller and the second roller to cause the body strands to lay and be twisted on the plurality of twisted strands.
1. A method of manufacturing a rope structure, the method comprising:
providing a plurality of twisted strands such that the plurality of twisted strands is wrapped in a loop around a first roller and a second roller at opposing sides of the loop; and
feeding a plurality of body strands onto the loop while connected to the loop such that the body strands are caused to twist and lay upon the plurality of twisted strands by movement of the loop about the first roller and the second roller.
2. A method of manufacturing a rope structure, the method comprising:
forming a loop around a first roller and a second roller, the loop including a plurality of loop strands wrapped around the first roller and the second roller at opposing sides of the loop, forming including applying a twist to the plurality of loop strands to provide a plurality of twisted strands; and
feeding a plurality of body strands onto the loop while the plurality of loop strands is connected to the loop such that the body strands are caused to twist and to lay upon the plurality of twisted strands by movement of the loop.
3. The method of claim 2 , wherein moving includes driving at least one of the first roller and the second roller.
4. The method of claim 2 , further comprising adjusting a relative position of the first roller and the second roller to adjust a tension in the loop.
5. The method of claim 2 , after feeding, covering the loop.
6. The method of claim 5 , wherein covering includes indicating on a cover a region of discontinuity in the plurality of body strands or in the plurality of loop strands.
7. The method of claim 2 , wherein each of the plurality of loop strands has a first end, wherein each of the plurality of body strands has a second end, and wherein the method further comprises connecting each first end to a corresponding second end to form a sling.
8. The method of claim 7 , further comprising, after connecting, covering the loop, covering including indicating on a cover a region of a connection between the plurality of body strands and the plurality of loop strands.
9. The method of claim 2 , wherein the plurality of loop strands and the plurality of body strands are formed together as continuous strands.
10. The method of claim 2 , wherein the plurality of body strands are separate from the loop prior to being connected to the loop.
11. The method of claim 2 , wherein the plurality of loop strands are formed of one of a gel-spun ultra-high-molecular-weight polyethylene, a recrystallized high modulus polyethylene, a liquid crystal polyester, a gel-spun polyethylene, a para-aramid, a para-aramid copolymer, a polyamide, a polyester or combinations thereof.
12. The method of claim 2 , wherein the plurality of body strands are formed of one of a gel-spun ultra-high-molecular-weight polyethylene, a recrystallized high modulus polyethylene, a liquid crystal polyester, a gel-spun polyethylene, a para-aramid, a para-aramid copolymer, a polyamide, a polyester or combinations thereof.
13. The method of claim 2 , wherein the plurality of loop strands is two loop strands.
14. The method of claim 13 , wherein the plurality of loop strands comprises ten or fewer loop strands.
15. The method of claim 2 , wherein feeding includes feeding at least two body strands.
16. The method of claim 15 , wherein feeding includes feeding ten or fewer body strands.
17. The method of claim 2 , wherein applying includes applying a twist rate of at least about 0.8 twists per meter.
18. The method of claim 2 , wherein applying includes applying a twist rate of up to about 1.5 twists per meter.
19. The method of claim 2 , wherein applying includes applying a twist rate of between about 0.8 twists per meter and about 1.5 twists per meter.
20. A method of manufacturing a rope structure, the method comprising:
positioning a plurality of twisted strands around a first roller and a second roller so as to form a loop with the first roller and the second roller at opposing sides of the loop; and
feeding a plurality of body strands onto the loop, feeding including, with the plurality body strands connected to the loop, moving the loop about the first roller and the second roller which causes the body strands to twist and lay on the plurality of twisted strands.