B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/757, 18/778
B29D 23/05 (1980.01)
Patent
CA 1112012
ABSTRACT OF THE DISCLOSURE Apparatus for and method of producing a continuous flexible tubular conduit having plurality helically of wound reinforcing- electrical wires extending therealong is provided herein The apparatus has means for forming the wires into a corresponding plurality of sub- stantially identical continuous non-rotating helical coils; an extruder head having an opening for receiving the coils therethrough; means extending into the opening for moving the coils through the opening with the coil turns of the coils coaxially aligned and alternately arranged; the moving means moving the coils in a rectilinear path substantially coinciding with the coaxial alignment; and means in the head for ding polymeric tube around the coils to define the conduit; the wire- forming means comprising a support assembly rotatably supporting a plurality of wire feed spools with their axes perpendicular to the recti- linear path, a plurality of feed wheels each having a peripheral recess therein for receiving an associated wire, means twisting the wires as they exit the feed wheels, means rotating the support assembly and feed spools about an axis substantially coinciding with the rectilinear path to assure the wires are free of entanglements during twisting thereof by the twisting means, and control means correlating the feeding of wires from the spools with the twisting means, rotating means, and moving means. This produces a flexible conduit having a plurality of helically coiled wires extending therealong in which tangling of such wires during processing is prevented.
319315
Dayco Corporation
Marcus & Associates
LandOfFree
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