Abstract:
A steel cord for the reinforcement of rubber products and the like has an open twisted structure comprised of 3 to 6 steel filaments each having an ellipsoidally helical shape, and has a particular tensile elongation under a load of 5 kg.
Abstract:
A reinforcing cord for elastomeric products is produced by feeding a plurality of single metal wires of the same diameter into a set of successively arranged stranding points. At least two wires are fed into the first stranding point and through the subsequent stranding points. Additional wires are fed into the respective subsequent stranding points. The quantity of wires fed to the stranding points is determined by the number of valleys which are present in the peripheral contour of the processed strand at this particular stranding point. In this manner each additional wire is brought in contact with at least two preceding wires in the processed strand.
Abstract:
A method and apparatus are provided for making a cable particularly well suited for reinforcing elastomeric articles such as belts and tires for motor vehicles. A plurality of metallic filaments are bundled together and helically wound by passing the bundle over a deflecting edge without twisting the filaments around each other. One or more wrapping filaments are then passed over a similar deflecting edge to pre-form the wrapping filament into a helical shape. The wrapping filament is then wound about the bundle while maintaining the hand and pitch of the pre-formed helical shape of the wrapping filament to correspond to those of the filaments of the bundle. The apparatus provided for practicing the method has a horizontal rotor which is driven about a spindle and a plurality of spools independently suspended for feeding filaments to be cabled to the rotor. The rotor has a plurality of filament guide means of which some are adapted to bend a bundle of filaments fed to the rotor to form a helical configuration without winding one filament of the bundle about the other filaments. A spool of wrapping filament is disposed within the rotor and wrapping filament and helically wound core filaments are fed to a cabling device where the wrapping filament is helically wound about the core filaments. A cable prepared in accordance with the method and apparatus provided by this invention is disclosed in my application being Ser. No. 682,264 filed on May 3, 1976, and corresponding to Netherlands Pat. No. 7 505 523 filed May 12, 1975.
Abstract:
A metallic cable adapted to be used to advantage for reinforcing various types of elastomeric articles such as belts and motor vehicle tires has a core formed from two or more metallic filaments wound together into a helical shape without twisting one filament about the other whereby each core filament lies in line contact with at least one other core filament, the line of contact being parallel to the direction of the filament and a helically wound wrapping filament is disposed about the core filaments. The wrapping filament is helically wound at the same lay and hand as the core filaments and is positioned on the inside of the helix formed by the core filaments.
Abstract:
In an elevator rope, an inner layer rope has: an inner layer rope fiber core; a plurality of inner layer strands; and a resin inner layer rope coating body that is coated onto an outer circumference. Inner layer strands are twisted together on an outer circumference of the inner layer rope fiber core. The inner layer strands have: an inner layer strand fiber core that is disposed centrally; and a plurality of steel inner layer strand wires that are twisted together on an outer circumference of the inner layer strand fiber core. In addition, a plurality of steel outer layer strands are twisted together on an outer circumference of the inner layer rope.
Abstract:
The invention relates to cord (20) comprising a number of filaments twisted together. The peripheral surface of the cord (20) is at least partially coated with an adhesion promoting coating (24). The adhesion promoting coating (24) comprises at least a first layer comprising a silicon based coating, a titanium based coating, a zirconium based coating or a combination thereof. The invention further relates to a composite material comprising such a cord (20) embedded in a polymer material. Furthermore the invention relates to a method to manufacture such a cord (20).