Abstract:
An exemplary assembly includes at least one elongated tension member (32). A jacket covers at least some of the tension member (32). The jacket comprises a polymer material (68,64) including an adhesion enhancer (62) that facilitates adhesion between the tension member and the jacket.
Abstract:
A rope structure comprising a core component comprising core fibers combine to form a first rope structure and a first cover component comprising first cover strands comprising first cover fibers within a first matrix material. The first cover strands are arranged around at least a portion of the core component.
Abstract:
A buffer layer is used to coat on the multi-filament wrapped string to fill the gaps. The polymers of the buffer-layer coating have a high melt-flow (low viscosity) during coating process to fill all the gaps between the filaments, and the filaments are fixed by the coatings onto base core materials. An outer protective coating is applied, which may comprise a composite nylon, clay nanoparticles, carbon nanotubes, an impact modifier, or any combination of the foregoing.
Abstract:
The invention relates to a high strength fibers comprising a coating of cross-linked silicone polymer, and ropes made thereof. The fibers are preferably high performance polyethylene (HPPE) fibers. The coating comprising a cross-linked silicone polymer is made from a coating composition comprising a cross-linkable silicone polymer. The rope shows markedly improved service life performance in bending applications such as cyclic bend-over-sheave applications. The invention also relates to the use of a cross-linked silicone polymer in a rope for an improvement of bend fatigue resistance.
Abstract:
A fiber cable for helicopter rescue winches includes a plurality of load-bearing synthetic-fiber strands braided with one another, at least one electrically conductive insert, and a wear indicator providing a visual check of a state of the fiber cable, where the load-bearing synthetic-fiber strands are encased in a radial direction by a friction-reducing stable fiber layer, an inner cable jacket, and outer cable jacket.
Abstract:
A flexible abrasion resistant water shedding omnidirectionally reflective rope has a central low-density polymeric closed cell foam core comprising EPDM, Neoprene, SBR, NBR, EVA, PVC, PVC/NBR foam surrounded by cylindrically braided sleeve of reflective strips composed of narrow width reflective strips that comprise a woven or knitted narrow width strip and a flexible nylon retroreflective sheet sewn thereon and covered with abrasion resistant water shedding coating. The flexible retroreflective sheet is formed by thermally bonding corner cube, microsphere retroreflectors, or wide angle exposed retroreflective lenses to a flexible polymeric sheet. Due to its low-density foam core construction, the reflective rope floats on water and sheds water from the surface preserving omnidirectional reflectivity. The rope reflects light omnidirectionally over a large angle of acceptance and provides accurate illumination of the rope floating in water, location of a rope wound buoy and the like when used during dusk, fog or nighttime hours.
Abstract:
An exemplary load bearing member for use in an elevator system is made by a process that includes heating at least one tension member. The heated tension member is placed adjacent one side of a first jacket layer. The first jacket layer is at least partially melted in the vicinity of the heated tension member such that the tension member at least partially penetrates the first jacket layer. Subsequently, a second jacket layer is added adjacent to the one side of the first jacket layer such that the elongated tension member is between the first and second jacket layers. The second jacket layer is at least partially melted in the vicinity of the heated tension member such that the tension member at least partially penetrates the second jacket layer. The first and second jacket layers are secured together such that the resulting load bearing member has a planar traction.
Abstract:
In an elevator wire rope 1 structured by twisting a plurality of schenkels 3, each schenkel 3 being formed by twisting a plurality of strands 2, each strand 2 being formed by twisting a plurality of fine steel wires 2a to 2g, the interior of the wire rope being filled with a resin 4, and the surface of the wire rope being covered with a resin 5, wherein the direction in which the fine steel wires 2a to 2g and the strands 2 are twisted and the direction in which the schenkels 3 are twisted are mutually opposite, and the diameter d4 of the inscribed circle of the plurality of twisted schenkels 3 is smaller than the diameter d2 of the schenkel 3.
Abstract:
An exemplary assembly includes at least one elongated tension member. A jacket covers at least some of the tension member. The jacket comprises a polymer material. The assembly includes a flame retardant selected from a group consisting of a halogen-free melamine based intumescent or a filled polymer having a nanoscale filler chemically bonded to a matrix phase.
Abstract:
A support system has a belt-like support, which supports a load and which has at least one rib or groove with wedge-shaped cross-section extending in the longitudinal direction of the support, is driven by a support pulley, which pulley has at least one corresponding groove or rib with wedge-shaped cross-section extending in a circumferential direction, wherein a cavity is present between a rib crest of the wedge-shaped ribs and a corresponding groove base when the support rests on the support pulley.