Textiles: spinning – twisting – and twining – Apparatus and processes – Covering or wrapping
Patent
1976-05-03
1977-06-21
Watkins, Donald
Textiles: spinning, twisting, and twining
Apparatus and processes
Covering or wrapping
57 55, 57156, 152359, D07B 300, D02G 348
Patent
active
040302482
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.
REFERENCES:
patent: 1899559 (1933-02-01), Damon
patent: 1942218 (1934-01-01), Schmitz
patent: 2811010 (1957-10-01), Balint
patent: 3641755 (1972-02-01), Heinen et al.
Akzo N.V.
Watkins Donald
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