ES422698A2 - Procedure for the manufacture of tubes of great flexibility. (Machine-translation by Google Translate, not legally binding)
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Procedure for the manufacture of tubes of great flexibility. (Machine-translation by Google Translate, not legally binding)
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Shaping Of Tube Ends By Bending Or Straightening
(AREA)
Abstract
Improvements in the object of the main patent no. 373,264, by "procedure for the manufacture of tubes of great flexibility", essentially characterized by the fact of winding helically on the tube, which leaves the forming machine with a combined movement of rotation and of translation in correspondence of the helical step of the elements that compose it, with the same step as these elements, a second thermoplastic band, elastic and with high characteristics of tensile strength, which is extracted immediately before its application on the tube and synchronously with the formation thereof, with a greater width than said step, so that the various band turns are overlapping and are welded together at the expense of the residual heat of the formation of said band and tube. (Machine-translation by Google Translate, not legally binding)
ES422698A1974-01-291974-01-29Procedure for the manufacture of tubes of great flexibility. (Machine-translation by Google Translate, not legally binding)
ExpiredES422698A2
(en)
Improvements introduced in the manufacture of flexible metal tubes for use as joints in motor exhaust pipes. (Machine-translation by Google Translate, not legally binding)