Its disadvantages are high weight, stiffness, low corrosion resistance, abrasive to other objects, high conductivity, loss of strength in smaller bend diameters, difficulty of inspection (because of weight) and high recoil and spring-back. Wires' principle advantages are high abrasion resistance, high UV resistance, high temperature tolerance, and cheaper initial cost. For a given lift capacity, the synthetic alternative is 4 to 10 times lighter. The biggest difference between wire based slings versus synthetic slings is weight. Synthetic slings are also formed by utilizing a strength element such as a twisted strand of fibers (or braided element) and laying a continuous length in a circular path making multiple laps until a desired combined strength is achieved and then enclosing these strands within a “sock” of suitable cloth type material.Įach of these various types of slings has advantages and disadvantages. Flat synthetic webbing is also widely used to make slings by folding an eye in each end and stitching the bitter end to the standing part of the webbing, thus forming eyes that can be attached between an object to be lifted and to an apparatus designed to exert a lifting force. In synthetic form a sling may be formed similarly by utilizing a single length of rope (of any construction such as 3 strand, single braid, double braid, parallel, plaited, etc.) and forming an eye in each end by splicing, swaging, knotting, potting, etc. In metal or wire rope a sling may be formed by utilizing a single length of wire and forming an eye in each end by splicing, swaging, or potting. BACKGROUND OF THE INVENTIONĮye and eye lifting slings exist in various forms made of metals and synthetics in single element form and in multi part or element form. The invention relates to slings, and more particularly, to a synthetic rope multi-cable woven sling. These applications are herein incorporated by reference in their entirety for all purposes.
14, 2014, which claims the benefit of U.S. This application is a continuation of U.S.
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