Plastic and nonmetallic article shaping or treating: processes – With twining – plying – braiding – or textile fabric formation
Patent
1982-05-24
1984-04-24
Thurlow, Jeffery R.
Plastic and nonmetallic article shaping or treating: processes
With twining, plying, braiding, or textile fabric formation
156143, 156144, 156149, 156156, 15624413, 264173, 264174, 264281, B32B 108
Patent
active
044447078
ABSTRACT:
The invention relates to a method and an apparatus for the manufacture of high-pressure hose composed of a plastic core and a plurality of layers of helically wound plastic-resisting members formed in particular of wires of high tensile strength which are rewound in a rewinding device from a supply reel onto several working spools, and optionally of an outer cover made of a plastic material. An intermediate layer of plastic yarn is disposed between every two helically wound pressure-resisting layers. After being unwound, the wires necessary for the helically wound pressure-resisting layers are precoiled over a hardened edge in the rewinding device and then wound onto the working spool in the stretched state. In accordance with the preferred embodiment, precoiling is done, not in a stranding machine, during hose production, but one stage earlier, in the rewinding device, where the individual wires are rewound from a supply reel onto so-called working spools.
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Polyflex Schwarz GmbH & Co.
Thurlow Jeffery R.
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