Abstract: A belt for an elevator system includes one or more tension members extending along a belt length, and a jacket at least partially encapsulating the one or more tension members. The jacket defines a traction surface configured to interface with a traction sheave of the elevator system, a back surface opposite the traction surface, and two edge surfaces extending between the traction surface and the back surface. The traction surface includes a convex shaped segment extending at least partially across the traction surface between the two edge surfaces.

Abstract: A belt for use as for example an elevator belt, flat belt, synchronous belt or toothed belt comprises steel strands held in parallel by a polymer jacket. The steel strands have a diameter ‘D’ and are separated by a pitch ‘p’. The ratio of diameter ‘D’ over pitch ‘p’ is larger than 0.55. Such belt arrangement prevents the cutting of the polymer jacket between strand and pulley and abates the noise generation during use. The belts are best built with a type of parallel lay strands particularly designed for use in a belt. These strands do not show core migration during use of the belt.

Abstract: Provided is a steel cord for rubber article reinforcement which has excellent corrosion resistance and productivity without deterioration of adhesion with rubber. A steel cord (1) for rubber article reinforcement, in which plural steel filaments (2) are twisted together, includes: a core having at least one core filament (2c); and a sheath having at least one sheath layer formed by twisting at least one sheath filament (2s) around the core. In this steel cord (1), brass plating is performed on the steel filaments (2) and zinc plating is further performed on the outer circumference of the brass plating of the core filament (2c), and the steel filaments (2) have a diameter d of 0.1 mm to 0.6 mm.

Abstract: A rope (210, 310) having a three-layered structure comprising a core layer, an inner layer and an outer layer, the core layer comprising one strand (225, 315), the inner layer comprising multiple strands (220) with an amount n and the outer layer comprising multiple strands (215) with an amount m, wherein n is an uneven number, and m is a number which has no common divisor with n, each strand is formed by multiple twisted metal filaments. By this structure fretting of the strands is reduced and the life time of the rope is improved. Also, the use of the rope in lifting application and an elevator system comprising such a rope are disclosed.

Abstract: The present invention relates to an electrically conductive textile yarn for production of protective garments, comprising a first element which is made electrically conductive by means of a layer of silver, and a second element which is different from the said first element, and is provided with good resistance to fire; the first element can be in the form of filaments or fibers. The present invention also relates to a garment produced by means of a yarn of this type and to a method for production of the yarn itself.

Abstract: A steel cord comprises more than one steel filament (10). At least some of the steel filaments have a zinc iron alloy layer (14) partially covered with a zinc cover (16). The zinc cover is only present in valleys formed in the zinc-iron alloy layer. The processability and adhesion level in rubber products of the stell cord are increased.

Abstract: To improve tensile strength without impairing flexibility and adhesion to concrete, and to form a thick coating in a surface layer part for preventing a basis material from being exposed by damage to the coating, a method of forming double coatings on a prestressing strand includes a primary painting process after a pre-treatment process, in which a resin coating is formed only at the surface layer, a secondary painting process in which respectively individual state resin coating is formed on an outer peripheral face of each of the core wire and surrounding wires under a loosened and separated state, thereby forming a double coating for each surrounding wire, and a finishing process of tightening and retwisting the surrounding wires about the core wire to an original state. The obtained prestressing strand has the double coating portions only at the surface layer and sufficient flexibility and adhesion to concrete.

Abstract: A load bearing member (22) useful in an elevator system (10) includes at least one elongated tension member (36), a conversion coating (46) on the elongated tension member (36), and a polymer jacket (34) at least partially surrounding the coated elongated tension member (36). In one example, the conversion coating (46) includes at least one of an oxide, a phosphate, or a chromate.

Abstract: A wire rope 10 includes a plurality of strands 12. The strands are formed from individual wires or filaments 14. The strands are wound about a central axis. A conduit 16 also extends along said central axis. The conduit 16 has walls that are permeable to a lubricating compound. The lubricating compound is injected into the channel 18 defined by the conduit. The lubricating material migrates through the conduit wall and radially outwardly therefrom to provide lubrication to the individual strands and filaments comprising the wire rope.

Abstract: A wire rope (10) includes a plurality of strands (12). The strands are formed from individual wires or filaments (14). The strands are wound about a central axis. A conduit (16) also extends along said central axis. The conduit has walls that are foraminous and permit radial flow of a lubricant. The lubricating compound is injected into the channel (18) defined by the conduit. The lubricating material migrates through the orifices in the conduit wall and radially outwardly therefrom.

Abstract: A wire rope is disclosed, which has at most 18 outer strands and an independent wire rope core, with the strands of the core being laid in the opposite direction to the outer strands of the rope, and a nylon jacket is provided between the core and the outer strands of the wire rope.

Abstract: A cut-resistant combined yarn is described that includes a wire component. Kinking and knotting of the wire component resulting from stretching of the wire component during knitting is avoided by encasing the wire component within a cut resistant combined yarn that has a higher stretch resistance than the wire component. The combined yarn includes at least one strand of stainless steel, at first non-metallic strand of an inherently cut-resistant material, and a second non-metallic strand of a cut resistant material, a non-cut resistant material or fiberglass. The non-metallic strands are air interlaced with each other to form intermittent attachment areas along the lengths of the strands. At least one or the other of the strands is a multi-filament strand. During air interlacing operation, the two non-metallic strands encase the stainless steel strand in the non-metallic strands at least in some of the zones.

Abstract: A filler element is located between each adjacent pair of outer strands of a wire rope and interlocks with the adjacent strands. The filler elements provide the rope with substantially smooth outer surface reducing vibration of the rope passing over a pulley. Filler elements are disclosed consisting of an elastometic or polymeric material having an oriented molecular structure aligned along the filler element and also aligned in a generally radial direction with respect to the rope.

Abstract: A wire rope 10 includes a plurality of strands 12. The strands are formed from individual wires or filaments 14. The strands are wound about a central axis. A conduit 16 also extends along said central axis. The conduit 16 has walls that are permeable to a lubricating compound. The lubricating compound is injected into the channel 18 defined by the conduit. The lubricating material migrates through the conduit wall and radially outwardly therefrom to provide lubrication to the individual strands and filaments comprising the wire rope.

Abstract: A tension member for an elevator system has an aspect ratio of greater than one, where aspect ratio is defined as the ratio of tension member width w to thickness t (w/t). The increase in aspect ratio results in a reduction in the maximum rope pressure and an increased flexibility as compared to conventional elevator ropes. As a result, smaller sheaves may be used with this type of tension member. In a particular embodiment, the tension member includes a plurality of individual load carrying cords encased within a common layer of coating. The coating layer separates the individual cords and defines an engagement surface for engaging a traction sheave. The individual cords are constructed of several strands and each strand is separated from direct contact with each other strand by polymeric material. While aspect ratios of greater than one are preferred, tension members of other ratios including round also benefit from the prevention of direct contact.

Abstract: A PC strand is formed by twisting peripheral wires made of deformed PC steel wires around a core, and allowing rust inhibitive material of thermoplastic resin to permeate into voids defined among the core and peripheral wires by use of an extruder. Since at least one of the core and peripheral wires is made of a deformed PC steel wire having an uneven outer surface, the thermoplastic resin can smoothly permeate deep into the inside of the PC strand.

Abstract: Disclosed is a method of forming corrosion protection coatings on prestressing strands. It comprises the steps of untwisting sequential lengths of a prestressing strand; keeping the surrounding steel wires apart from the core steel wire to coat these steel wires with a synthetic resin; and twisting the coated steel wires to provide a prestressing strand of the original shape, thus permitting the separate coating of each steel wire, leaving, on the prestressing strand surface, the helical dent as deep and wide as the noncoated prestressing strand to assure the bond of the twisted wire to the surrounding concrete as firm as the noncoated prestressing strand. Also, an apparatus for carrying out such coating method is disclosed.

Abstract: Metallic cord for reinforcing elastomeric articles and apparatus for making same including a round section and equal diameter filaments and a core (11) of two strands of two filaments (5,6,15,16) one strand being untwisted and the other strand having a twist and a first lay length so as to be twisted around the one strand.An outer layer (12) of filaments (21-28) twisted around the core (11) and having the same twist direction and a second lay length half of the core (11) lay length.

Abstract: A corrosion resistant PC steel stranded cable for a pretensioning method has a core wire and a plurality of side which are coated firmly for the corrosion proof with paint of a synthetic resin material while maintaining a stabilized stranded condition. The cable comprises the single core wire and the plurality of side wires disposed in a closely contacting relationship with each other and also with the core wire in such a manner as to define a plurality of spiral air gaps between the core wire and the side wires and also to define a plurality of spiral recessed grooves between individual adjacent ones of the side wires on the outer side of the side wires. Each of the core wire and the side wires are processed by blueing in advance. Paint of a synthetic resin material is filled in the spiral air gaps, and a coating layer of paint of a synthetic resin material is formed substantially with a uniform thickness on an entire outer periphery of the side wires including the spiral recessed grooves.

Abstract: A glass matrix/ceramic fiber reinforcement composite is prepared from a yarn formed by spinning glass fiber and ceramic fibers lengths together, to form a bicomponent yarn. The yarn is weavable and spinnable, and accordingly may be prepared in fabric forms, or in windings, of predetermined shape. The precursor is melted by heating to the temperature of the melting point of glass, which fused the glass into a continuous matrix, surrounding the ceramic reinforcement.

Abstract: A cable-like synthetic composite body which can be used as a support element for technical cables comprises a string of endless filaments of high modulus of elasticity which extend parallel to one another and to the cable axis, with the string being impregnated with a first thermoplastic material (12) in the form of a hot melt adhesive. The string (11') which is held together in this way is then sleeved by extrusion with the second thermoplastic material (13) which is filled with staple fibers (23) of a high modulus of elasticity. A sleeve of a third thermoplastic material (14) is then applied by means of extrusion onto the sleeve layer.

Abstract: A method of packing elongated porous bodies moved between zones of different pressure, wherein the porous body (T) reciprocates through a pressurized packing agent (M). The packing agent is thixotropic and is supplied continuously to the porous cable (T) under a pressure exceeding the pressure in a higher pressure zone (P.sub.1) while the porous body (T) is impregnated with a thixotropic packing agent (M) such that the cross-section of the cable, throughout its entire length, is filled with packing agent (M). A hydraulic cylinder-type actuator utilizes a porous cable power transmission element packed in a chamber (7) filled with viscoelastoplastic material and communicated with means designed to develop in said chamber a pressure exceeding the pressure of the actuator working fluid.

Abstract: An unbonded PC steel strand used for posttensioning concrete comprising a PC steel strand composed of a plurality of stranded wires, a thin transparent lacquer coating on the outer surface of the PC steel strand, the lacquer coating being able to be broken when the PC steel strand is subjected to tension or posttensioning concrete, a filler applied around the lacquer coating, and a synthetic resin sheath covering the lacquer and filler coated PC steel strand. A method of manufacturing the unbond PC steel strand comprising steps of annealing the PC steel strand at a low temperature to remove strain, coating the outer surface of the PC steel strand with lacquer, applying a greaselike corrosion inhibitor to the surface of this lacquer coating, and sheating the coated PC steel strand with an outer synthetic resin sheath.

Abstract: A gun barrel cleaner comprises an elongated flexible shaft having a universal coupling secured to each opposite end and several different cleaning tips selectively threadably and detachably engageable with either universal coupling. One cleaning tip, a gun barrel bore obstruction remover, comprises a cylindrical body portion having a concave face at one end and securing means at the other end for attaching the tip to the shaft. A compact cylindrical container for storing and conveniently transporting the gun barrel cleaner is provided. In addition, an improved method of attaching a cleaning patch to a gun barrel cleaning tip having a patch receiving slot is provided.

Abstract: A method is provided for making a plastic-filled wire rope by preheating a lubricated wire rope to a temperature close to the melting point of the plastic material with which the rope is to be filled, and then injecting the plastic material in molten state under heat and pressure into the wire rope so as to fill essentially completely the interstices between the strands and the individual wires, while displacing and removing most of the lubricant initially present within the rope. The obtained novel plastic-filled, lubricated wire rope has improved wear and fatigue resistance as well as increased life.

Abstract: A steel cord for reinforcing rubber products such as truck tires comprises a plurality of steel wires twisted together to form a multiwire layered cable construction having two or more successive wire layers around a common core. The wires of the outer layer are covered by a rubber adherable coating of, e.g. brass, and the wires (shaded) of the layer inwardly adjacent the surface layer are covered by a corrosion resistant coating, such as zinc or a zinc alloy.

Abstract: The present invention relates to a method of continuously impregnating and encapsulating a wire rope with a liquid polymer formed from at least two reactive components which when mixed and heated together react chemically to form the polymer. In accordance with a preferred embodiment of the invention, the components are separately pumped into a mixer and then into an injection die, and a preheated wire rope is passed through the injection die. The wire rope is preheated to a temperature sufficient to initiate reaction of the components. The reaction of the components forms the liquid polymer which continuously flows into the voids or spaces of the wire rope and encapsulates the outer surface of the wire rope. The liquid polymer cures in and around the wire rope to form a unitary impregnated and encapsulated wire rope.

Abstract: A wire rope including a core surrounded with a plurality of wound strands. The rope is encapsulated with a thermoplastic after the application of a lubricant blend including amorphous polypropylene.

Abstract: A wire rope is provided having a central core strand about which are wound outer strands. Non-linear spacer wires are present in the gaps between outer strands to assure the uniformity of such gaps and provide passageways from the interior to the exterior of the wire rope. A coating, usually of a suitable thermoplastic, is extruded into such rope to extend continuously from the core and between adjacent outer strands and through the passageways.

Abstract: A wire rope having extraordinary resistance to wear comprises a core strand and a plurality of outer strands oriented and nested in the same helical lay as the core strand, all the wires thereof being made of a molybdenum-containing steel and having been stress-relieved at a temperature of at least 675.degree. F., said rope being coated inside and outside with a suspension of finely divided molybdenum disulfide in a non-fluid state at room temperature.

Abstract: A cable comprises at least one layer of strands (10) with each strand covered with an individual sheath (20) of rubber or plastics material. The sheaths are so shaped (16, 17, 18) that the sheaths of adjacent strands interlock. This provides a layer in which the strands have a generally fixed spatial relationship both to each other and within the cable. This reduces inter-strand forces, so increasing cable life, and also provides a dimensionally stable cable.

Abstract: A wire rope for use in a traction type elevator system is coated with a soft-solid agent or a greasy agent having a drip temperature higher than 55.degree. C. and exhibiting physical properties such that it is evaporated in an amount less than 1 weight percent at 105.degree. C. for an interval of eight hours and elevates the coefficient of friction or traction between the wire rope and the drive sheave when coated on the wire rope.

Abstract: The present invention provides a wire rope comprising an inner layer of at least four separate wire strands and an outer layer of at least eight separate wire strands, parallel laid. The strands themselves are usually of parallel lay and are usually lubricated. A thermoplastic or an elastomer usually surrounds the inner layer strands and extends between the inner layer strands and the outer layer strands and between the outer layer strands.

Abstract: The invention relates to a compound cable, such as an aluminum cable, an aluminum alloy cable, aluminum cable steel reinforced or an aluminum alloy cable steel reinforced with reduced audible noise for use in a high voltage transmission line.The surface of each of the aluminum wires to constitute the outermost layer of the cable is treated in water or aqueous vapor of more than 90.degree. C. so as to form a hydrophilic hydrated film on said surface, or more than 3 grooves are provided on the outer periphery of each of the aluminum wires in excess of 30% of such wires to constitute the outermost layer of the cable, a hydrated film being caused to form on the surface including the grooves thereof, so that the raindrops adhering to the surface may readily disappear due to the improved hydrophilic property and draining property of the surface of the cable thereby preventing the development of the corona discharge.

Abstract: Reinforced thermoplastic impregnated lubricated wire ropes are provided in the present invention. A method of reinforcing and filling the thermoplastic material with fibers, mineral fillers and powders is also provided.

Abstract: A wire rope formed of a plurality of strands of wire rope elements wound around a core, and incorporating a lubricant which comprises a microporous polymeric lubricating medium.

Abstract: Flexible transmission line, wherein it comprises a fluid circulation duct and reinforcements inside and outside the said duct against compressive forces inside and outside the duct, the internal reinforcement comprising at least one cable within said duct, whereby within said duct over the entire length of the line the cable leaves fluid circulation spaces, while the external reinforcements are coaxial to the duct.

Abstract: The disclosed method of making a shape-stranded rope includes twisting large wires into strands by twining them in at least one layer about a core with a sheathing of a soft deformable material, plastic drawing of the strands, forming the strands into a shaped profile and twisting the strands into the rope. The plastic drawing is effected until every round wire of the strand acquires a wedge-like profile, with the wires adjoining the sheathing becoming partly embedded in this sheathing, and the strand acquires a substantially smooth peripheral surface. The method enables, while using round wires, to increase the structural density of the strands, and also to enhance the flexibility, strength and wear resistance of the shape-stranded rope, the rope manufactured by the disclosed method being usable by various industries.

Abstract: PCT No. PCT/GB78/00019 Sec. 371 Date June 5, 1979 Sec. 102(e) date June 1, 1979 PCT Filed Oct. 3, 1978 PCT Pub. No. W079/00182 PCT Pub. Date Apr. 19, 1979The invention relates to wire ropes.There is disclosed a wire rope comprising a plurality of strands (4-12) twisted together with each strand (4-12) being individually covered by a respective sheath (16) of rubber or rubber substitute. Each strand (4-12) comprises a plurality of wires (14) twisted together with the direction of twist of at least the outer wires (14) in each strand (4-12) being opposite to the direction of twist of at least the outer wires (14) in the strands (4-12) adjacent to it, the rope having an outer covering sheath (18) of rubber or rubber substitute.In this way, the wires (14) of adjacent strands (4-12) do not cross each other, and stress on them is reduced.

Abstract: A corrosion resistant rope in which the individual strands are sealed with a plastic foam impregnant and surrounded with a dense unfoamed plastic material is made by applying a foamable plastic to the individual wires of a series of wire strands, or, alternatively, to the individual strands as a whole, and closing the strands into a rope in a closing die while passing a nonfoamable plastic material into the closing die. Sealed plastic foam impregnated wire strands can be made in the same manner by passing nonfoamable plastic material into the stranding die during fabrication of the strand.

Abstract: A unitized marine umbilical cable carrying any number or combination of conventional elements such as hoses and electrical cables. A center stress member disposed along the axis of the marine umbilical cable is capable of supporting an underwater device such as a diving bell should the primary down line break. Cylindrically surrounding the stress member is a compression extrusion of a high strength highly resilient elastomer around which are helically cabled various conventional elements. Within the interstices between the high strength elastomer and the helically cabled elements is a resilient fill material. The resilient fill material and high strength highly resilient, low durometer elastomer serve as a radial shock absorber against tensional impact upon the umbilical or radial forces thereupon.

Abstract: A bristle for mounting on a rotatable drum or shaft to form a sweeping device for use in maintaining railroad rails, ties, ballast and way. The bristle contains a length of wire rope with a lubricant within the interstices of the wire and strands of the rope. A low density polyethylene jacket is high compression extruded onto the exterior and into the intersticial area of the length of wire rope thereby containing and permanently sealing the lubricant within the wire rope, increasing the longitudinal stiffness of the rope, and effecting a mechanical interlock between the wire rope and the polyethylene jacket which both secures the strands of the rope together and secures the polyethylene jacket to the rope. A polyurethane jacket is extruded onto the exterior of the polyethylene jacket thereby stiffening the wire rope and polyethylene jacket, protecting the same from abrasion and cutting, and preventing splaying, unraveling or flaring of the bristle.

Abstract: A corrosion resistant rope in which the individual strands are sealed with a plastic foam impregnant and which exhibits excellent retention of lubrication is made by preimpregnating the outer strands of the rope with plastic foam material prior to closing the strands into a wire rope. The final rope may then be surface lubricated to provide temporary and long term corrosion resistance and lubrication to exposed surface wires.