Abstract A method of manufacturing twisted wire products having a core and at least one outer layer of wires laid about the core consists in arranging the outer layer of wires in two groups during manufacture; one group, which is a substantial fraction of the number of wires in the outer layer is twisted and disposed in contact with the core so as to form as many peripheral gaps as there are remaining wires other than those in the fraction; the second group of wires which are the remaining wires are disposed in periphearl gaps so formed, and laid radially away from the core and in contact with adjacent wires of the first group; the outer layer so arranged in two groups is subjected to radially compressive deforming forces so as to wedge the conductors of the second group into the peripheral gaps so as to produce a tight and improved twisted wire product. Circular wires of the same diameter may be used for the core and the outer layer. Twisted wire products having a plurality of outer layers may be produced by forming single outer layers as said and building them in succession; alternatively, the product may be formed in a single stage of plastic deformation and subsequent thermal treatment as required. The core may be of circular, oval, oblong or triangular shape.
A method of manufacturing twisted wire products, such as cables and wire ropes consisting of a core with at least one layer of outer wires laid about said core, said method comprising the following operations: twisting and arranging said outer wires of at least one layer to dispose a fraction of the number of said outer wires around and in contact with said core and forming as many peripheral gaps between wires so laid in contact with the core as there are remaining wires which are wires other than said fraction of said outer wires; locating said reMaining wires in said peripheral gaps to be radially away from and out of contact with said core but in contact with adjacent wires of said fraction so as to protrude radially outwardly of the wires of said fraction; performing plastic reduction of all the twisted wires of the product by applying radial pressure of a reducing device to the protruding wires of the outer layer and using said protruding wires as wedges forced in between the adjacent wires, so as to form a twisted wire product of a desired cross section.
Claim 2
Independent Claim
189 words
A method of manufacturing twisted wire products, such as cables and wire ropes consisting of a core with at least one layer of outer wires laid about said core, said method comprising the following operations: twisting and arranging said outer wires of at least one layer to dispose a fraction of the number of said outer wires around and in contact with said core and forming as many peripheral gaps between wires so laid in contact with the core as there are remaining wires which are wires other than said fraction of said outer wires; locating said reMaining wires in said peripheral gaps to be radially away from and out of contact with said core but in contact with adjacent wires of said fraction so as to protrude radially outwardly of the wires of said fraction; performing plastic reduction of all the twisted wires of the product by applying radial pressure of a reducing device to the protruding wires of the outer layer and using said protruding wires as wedges forced in between the adjacent wires, so as to form a twisted wire product of a desired cross section.
Claim 3
Dependent Claim
56 words
A method according to claim 1 wherein in manufacturing the twisted wire products which consists of a plurality of layers, the method includes the step of arranging some wires in each layer protruding above the adjacent wires, and the step of performing plastic deformation by reduction of said plurality of layers in succession, one after another.
Claim 4
Dependent Claim
106 words
A twisted wire product comprising: a core member with at least one layer of outer wires laid about said core member and shaped by reduction and radial compression, at least some of said wires having a non-circular cross section and substantially radial sides, whereby if the wires of the product were replaced by round wires of equivalent cross section area, retaining a principle of mutual contact, then one half or less of the wires composing the outer layer would stand out above the rest of the wires so as to protrude from an imaginary contour described around the outer layer of wires laid about the core.
Claim 5
Dependent Claim
106 words
A twisted wire product comprising: a core member with at least one layer of outer wires laid about said core member and shaped by reduction and radial compression, at least some of said wires having a non-circular cross section and substantially radial sides, whereby if the wires of the product were replaced by round wires of equivalent cross section area, retaining a principle of mutual contact, then one half or less of the wires composing the outer layer would stand out above the rest of the wires so as to protrude from an imaginary contour described around the outer layer of wires laid about the core.