Abstract: An end fixing structure of a composite wire rod includes a composite wire rod, a wedge body 30 formed in a cylindrical shape, whose outside diameter expands from a tip portion subject to a tensile force toward a back end portion on a fixed side, to whose inner wall surface 42 an outer surface of the composite wire rod is transferred, and in which the inner wall surface engaging with the outer surface of the composite wire rod is formed, and a sleeve provided on an outer circumferential side of the wedge body and having an internal structure of a conical hollow whose diameter expands toward the back end portion on the fixed side, wherein the wedge body is formed from a plurality of divided wedge bodies and the inner wall surface is formed from a fine irregularity.

Abstract: A damage detecting apparatus comprises a magnetic-flux generating unit, a first magnetic-flux detecting element, a second magnetic-flux detecting element and a supporting unit. The magnetic-flux generating unit generates a magnetic flux in an object to be inspected. The first magnetic-flux detecting element is detects a magnetic flux leaking from a circumferential part of the object. The second magnetic-flux detecting element is arranged, opposing the first magnetic-flux detecting element across the object and detects a magnetic flux leaking from any other circumferential part of the object. The supporting unit supports the first and second magnetic-flux detecting elements, enabling the first and second magnetic-flux detecting elements to change in position relative to each other in a diameter direction of the object.

Abstract: According to an embodiment, a wire-type cutting device includes, a main roller portion includes a main roller on which a cutting wire is stretched, and a reel which delivers or takes up the wire, the reel and the main roller being disposed having the same axial direction and capable of being arranged so that the wire between the reel and the main roller is substantially perpendicular to the axial direction.

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: 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: To provide a high ductility to tensile load and compressive load and to enhance workability, the present invention provides a high performance fiber reinforced cementitious composition comprising fragments of a steel cord stranded wire accounting for 0.5 vol % or more and less than 1.5 vol % and fragments of at least one type of organic fibers accounting for 2.5 vol % or less.

Abstract: To provide a high ductility to tensile load and compressive load and to enhance workability, the present invention provides a high performance fiber reinforced cementitious composition comprising fragments of a steel cord stranded wire accounting for 0.5 vol % or more and less than 1.5 vol % and fragments of at least one type of organic fibers accounting for 2.5 vol % or less.

Abstract: The operation for fastening the end portion of a cord-like body is facilitated, the operation is capable of being automated and the end of the cord-like body is capable of being secured in reliable fashion. A window for receiving a resilient cord retainer is formed near the outer circumference of at least one flange of flanges provided on both ends of a winding drum. The cord retainer comprises a central retaining finger, a pair of fixing fingers, one provided on either side of the central retaining finger, and a connecting piece interconnecting the retaining finger and fixing fingers. Distal ends of the fixing fingers and the connecting piece are abutted against upper and lower edges, respectively, of the window from outside the flange, and the distal end portions of the fixing fingers are crimped and secured by a folded-back portion on the outer circumference of the flange.

Abstract: A single wire steel cord is prepared by flattening a round wire to have two flat surfaces facing each other and two round surfaces interposed between the two flat surfaces to face each other, wherein a flattening ratio D/W of the wire, where D denotes the short diameter of the cross section of the flattened wire and W denotes the long diameter of the cross section of the flattened wire, falls within a range of 0.5 to 0.95. Forming is applied to the flattened wire in a direction of at least the short diameter of the cross section of the flattened wire, and the flattened single wire steel cord is embedded in a tire belt portion such that one flat surface of the cord faces that portion of the tire which is brought into contact with the ground.

Abstract: A detecting coil device mounted on part of a cable to evaluate the degree of corrosion of the cable, which is used, for example, on suspension or skew bridges. The detecting coil device is provided with a detecting coil and Hall elements. A magnetizer having a magnetizing coil is mounted as to enclose the cable and the detecting coil device. When current flows through the magnetizing coil, it magnetizes the cable. The magnetic field strength is detected by the Hall element, and the amount of magnetic flux passing through the cable is detected using the detecting coil. The cross-sectional area of the cable is also calculated on the basis of the magnetic field strength and the amount of magnetic flux which are detected and the permeability of the cable. The degree at which the cross-sectional area of the cable is decreased (the corrosion degree) is evaluated by comparing the calculated cross-sectional area of the cable with the cross-sectional area of a reference cable.

Abstract: The characteristics of the wire are calculated, the wire having a cross-sectional shape which is substantially uniform along its length and having a length long enough in comparison with a diameter being deformed. The wire is divided into a plurality of elements with predetermined spacing along the length. When the wire is deformed, the shape of the wire after the deformation is determined. In the determined shape, a tangential stiffness equation using the element as a basis is calculated, and the calculated tangential stiffness equation is translated into a tangential stiffness equation using the whole of the wire as a basis. A global stiffness equation representing the whole wire is calculated from the tangential stiffness equation obtained by the translation. A load or a displacement produced in each portion of the wire is calculated from the global stiffness equation and the determined shape of the wire.

Abstract: A steel cord according to this invention comprises two core wires and five outer wires each having a diameter larger than that of each core wire and integrally twisted on the core wires, wherein a strand constituted by the five outer wires and the two core wires has an oblong cross-section.

Abstract: Two grooved rolls 11 and 12 among three grooved rolls 11.about.13 engaged by a saw wire 14 are arranged one above the other and the saw wire 14 is made to travel vertically between the grooved rolls 11 and 12. A workpiece 9 is moved horizontally and pushed against the vertically traveling wire 14. It is preferred that the grooved roll 13 be disposed at a height approximately the same as that of the lower grooved roll 12.

Abstract: The operation for fastening the end portion of a cord-like body is facilitated, the operation is capable of being automated and the end of the cord-like body is capable of being secured in reliable fashion. A window for receiving a resilient cord retainer is formed near the outer circumference of at least one flange of flanges provided on both ends of a winding drum. The cord retainer comprises a central retaining finger, a pair of fixing fingers, one provided on either side of the central retaining finger, and a connecting piece interconnecting the retaining finger and fixing fingers. Distal ends of the fixing fingers and the connecting piece are abutted against upper and lower edges, respectively, of the window from outside the flange, and the distal end portions of the fixing fingers are crimped and secured by a folded-back portion on the outer circumference of the flange.

Abstract: The present invention relates to a steel cord comprising two core wires and five outer wires each having a diameter larger than that of each core wire and integrally twisted on the core wires, wherein a strand constituted by the five outer wires and the two core wires has an oblong cross-section.

Abstract: A spool feeding method comprising transferring a spool box having a plurality of spools with a cord wound on each of them, the spools being arranged with the axial direction of the spools vertical, to a spool takeout position, loading the spools onto a holding device from the spool box so as to change the axial direction of the spools from vertical to horizontal, and carrying the spools over to a creel stand and setting the spools on creel shafts on the creel stand. A spool feeder including at least one transfer mechanism for transferring a spool box to a spool takeout position, at least one loading mechanism for loading spools from the spool box onto a holding device at the takeout position, at least one moving mechanism capable of moving between a receiving position and the creel stand and a setting device for setting the spools held by the holding device to creel shafts laterally set on the creel stand.

Abstract: A conveyor belt comprising an endless belt body and a plurality of reinforcing cords embedded in the endless belt body, the reinforcing cord having a triple twist structure using first twisting, secondary twisting, and final twisting, (1) the filaments in the organic fiber filament bundle being oriented at an angle within .+-.10.degree. to the cord axis of the reinforcing cord or (2) a core yarn being inserted into the core of the twist structure of the reinforcing cord.

Abstract: A brass layer is formed on a steel wire, and an Ni layer is formed on the brass layer. Then, the steel wire is drawn through a die, and the brass layer and Ni layer are mixed into an alloy coating layer. In the coating layer, the closer to its surface the higher the Ni content. According to the method, a rubber-reinforcing steel wire can be produced which shows improved wet adhesive property to rubber, without degrading drawability.

Abstract: A method for forming an fixing end portion of a composite rope comprises the steps of mounting a mold on an end portion of the rope, pouring a molten metal in a cavity defined between the end portion of the rope and the mold under pressure, covering a predetermined part of the end portion of the rope with a cast metal formed from the molten metal, cold-pressing the cast metal and fixing the portion coated with the cast metal to a fixing member.

Abstract: A steel cord has a core strand and an outer strand. The core strand includes three wire filaments located in a core portion and each having a same diameter, and nine wires located to enclose the three wires, twisted together with the three wire filaments, and each having a diameter smaller than that of each of the three wires. The outer strand has wires located to enclose the nine wires of the core strand, twisted in a direction reverse to the twisting direction of the core strand, and having a clearance between them.