Abstract:
A cut and abrasion resistant webbing includes a main body (1) and a cut and abrasion resistant protection (3) attached over the main body. The main body is made from a high tenacity fiber, and the protection is made from a plastisol mixture forming a paste. A method of manufacturing the webbing includes steps of: applying the main body by weaving or not weaving fiber; and coating a cut and abrasion resistant paste onto the main body, then curing and drying, finally forming a cut and abrasion resistant protection on the surface of the webbing. The anti cut and anti abrasion webbing for lifting, sling, lashing, tie down and lanyard becomes very tough to abrasion and cut. And the life cycle thereof can be improved over 2 to 10 times than the actual manufactured ones.
Abstract:
A safety elastic rope includes an elastic outer tubular rope having two longitudinally opposite first fixing ends, and an elastic inner rope inserted into the outer tubular rope and having two longitudinally opposite second fixing ends. The inner rope is more elastic than the outer tubular rope, and has substantially the same length as the outer tubular rope. The second fixing ends are connected respectively to the first fixing ends.
Abstract:
An elevator load bearing assembly (30) includes a jacket (34) having different portions comprising different polymer compositions. In a disclosed example, a plurality of tension members (32) are at least partially surrounded by a first portion (36) comprising a first polymer composition. A second portion (38) establishes at least one exterior surface (40) of the jacket (34) and comprises a second polymer composition. In one example, a surface-modifying agent is added to alter the composition of at least a portion of the jacket (34). In another example, co-extrusion techniques using different polymer compositions establish different portions of the jacket (34).
Abstract:
A fire safety line is disclosed having a core of heat-resistant strands twisted together and surround by a tough, cut and abrasion resistant jacket. Preferably, the strands of the core are glass fibers coated with vermiculite and the jacket is formed of braided glass fibers encapsulated by a para-aramid. Stainless steel wire may also be interbraided to reinforce the jacket.
Abstract:
An elevator support, such as a cable or a belt connected with an elevator car or counterweight, has load-bearing synthetic material strands, which are reinforced by the introduction of a second phase and have a higher modulus of elasticity than that of the unreinforced strands.
Abstract:
A thermally protected and corrosion protected structure, that has in combination a core substrate and a concentric composite laminate, wherein: (i) the core substrate has a length and extends at least substantially within and is surrounded by the laminate; and (ii) the laminate has a plurality of concentric layers. The concentric layers include: (a) an inner layer of a corrosion protective material substantially along and surrounding the length of the core substrate; (b) a layer of a first protective plastic coating surrounding the corrosion protective material; (c) a layer of a heat-resistive intumescent coating surrounding the first protective plastic coating; (d) a layer of a reinforcing mesh embedded in or on the intumescent coating; and (e) an outer layer of a second protective plastic coating.
Abstract:
An elevator in which the sheave diameter is reduced and the attendant lowering of the rope life and strength is suppressed to secure safety and reliability. To this end, a rope is used in which a plurality of element wires constituting the wire rope are each covered with resin material and the whole wire rope is covered with resin material, thereby reducing the wear due to slippage between the element wires and the wear due to contact with the sheave, which wear occurs when the rope is entrained around the sheave. When the elevator sheave diameter is reduced, a worried lowering of the rope life can be suppressed or the rope life can be improved. Thus, it is possible to achieve reduction of size and weight of equipment including motors and hoists, installation space saving for elevators, improved safety and reliability of the system by virtue of the increased rope life.
Abstract:
Composite reinforcements (100, 100A, 100B, 100C) are formed by combining a first plurality of continuous fibers (102) with a second plurality of continuous fibers (106) with the first and second pluralities of continuous fibers (102, 106) being impregnated with at least one appropriate resin material (R1, R2, R3) and pultruded to form the reinforcements. The first and second pluralities of continuous fibers (102, 106) can be intermixed with one another or combined as a central core (104, 132) of the first fibers with a jacket (108, 108A, 108B, 134) formed by the second fibers. In either event, the combined fibers are formed as an elongated rod (110) and rigidified using the resin material. The first fibers are glass, either E-glass or S-2 glass, with the second fibers being either carbon, aramid, S-2 glass or AR-glass. The composite reinforcements of the present application, formed by combining these materials, have characteristics very similar to steel under tensile loading but with superior corrosion resistance and less detrimental deterioration characteristics.
Abstract:
A multi-strand nylon rope having improved abrasion resistance is comprised of a plurality of strands. Each strand is comprised of a plurality of yarns wherein each yarn is formed of a predetermined number of filaments. The filaments of each yarn are twisted together to form a yarn of a predetermined size, the twist direction being opposite that of the final ply yarn direction. For a right lay rope a sufficient number of filaments are twisted together in the left or "S" direction to produce a yarn of a predetermined size. Three or more yarns prepared in this manner are then plied or twisted together in the opposite or right direction. The cover for each strand is formed of alternate yarns of standard (i.e. round) and oblong filaments, respectively, the oblong filaments having a modification ratio of three, forming a rope having increased abrasion resistance, a hand and feel that is not stiff or unmanageable and which resists strand-to-strand wet abrasion.
Abstract:
A suspension cable is encased in a metal pipe formed from a metal strip wound in a series of adjacent helical windings on the cable. The longitudinal edges of adjacent windings are connected by a continuous tight fold.