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S I S SOC D INVESTISSEMENTS CO
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S I S SOC D INVESTISSEMENTS CO
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Publication of ES201936A1publicationCriticalpatent/ES201936A1/en
Shaping Of Tube Ends By Bending Or Straightening
(AREA)
Abstract
In a device for working a plastic material while it advances through a tube of constant internal diameter, the combination comprising: a propeller having an input end portion, of a root diameter that is substantially less than said diameter internal and that also has an enlarged part at the exit from said extreme part, the diameter at the root of said enlarged part being progressively increasing from its two ends, to an intermediate point of said ends; and a substantially helical thread of constant outside diameter, across the entire length of said helix. (Machine-translation by Google Translate, not legally binding)
ES0201936A1951-08-131952-02-13A device for the work of plastic materials (Machine-translation by Google Translate, not legally binding)
ExpiredES201936A1
(en)
Procedure and device for internal reinforcement, with wire, of tube of thermoplastic material of any kind (Machine-translation by Google Translate, not legally binding)