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Apparatus for making hose incorporating an embedded static ground conductor

  • US 4,168,198 A
  • Filed: 01/09/1978
  • Issued: 09/18/1979
  • Est. Priority Date: 06/01/1977
  • Status: Expired due to Term
First Claim
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1. In a hose manufacturing process wherein an unvulcanized, extruded, elastomeric tube is overlaid with a textile reinforcement material, apparatus for forming a hose structure having an electrical conductor embedded therein comprising in combination:

  • a wrapping machine for applying textile reinforcement to the tube as it passes through the machine;

    a source of a bundle of loosely braided wire conductors;

    a first driven pair of rollers positioned relative to the source and having sufficient compression between them to draw the bundle of wires from the source; and

    a second driven pair of rollers mounted in proximate position to the first pair to accept the bundle of wires from the first pair, said first pair of rollers being driven at a relatively faster speed than the second pair so as to compress the bundle in its axial direction between the first and second pairs of rollers to thereby shorten the axial length of the bundle and to effect a sinusoidal configuration to the individual wires of the bundle, said second driven pair of rollers also providing a compressive force to the axially shortened bundle to flatten the bundle transversely of its axis into a ribbon-like conductor, said roller pairs being mounted on the wrapping machine and positioned relative to the passing hose tube and just ahead of the wrapping point of the textile reinforcement so as to be overwrapped by the textile material as the ribbon conductor is applied to the hose tube along its longitudinal axis.

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