ES207248A1 - A procedure of curving in cold metal bands for the manufacture of tubs (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure of curving in cold metal bands for the manufacture of tubs (Machine-translation by Google Translate, not legally binding)
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Tubos Forjados S A
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Tubos Forjados S A
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Priority to ES0207248ApriorityCriticalpatent/ES207248A1/en
Publication of ES207248A1publicationCriticalpatent/ES207248A1/en
A method of cold bending metal bands for the manufacture of tubes characterized in that a metal band passes between pairs of forming rollers and bells in the shape of a trumpet mouth that has a larger entrance hole than the outlet one, acquiring said band a tube shape open longitudinally with its cross section in the form of an open circle with a groove. (Machine-translation by Google Translate, not legally binding)
ES0207248A1953-01-151953-01-15A procedure of curving in cold metal bands for the manufacture of tubs (Machine-translation by Google Translate, not legally binding)
ExpiredES207248A1
(en)