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ROYO FERRERUELA MIGUEL
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ROYO FERRERUELA MIGUEL
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Application filed by ROYO FERRERUELA MIGUELfiledCriticalROYO FERRERUELA MIGUEL
Priority to ES0268264ApriorityCriticalpatent/ES268264A2/en
Publication of ES268264A2publicationCriticalpatent/ES268264A2/en
Improvements introduced in the object of the main Patent No. 249,876, by; "New method and machine for manufacturing cold pipes", by means of traction elements, guide rollers, and a drawing and calibrating matrix of the pipe, combined with devices for welding the longitudinal opening of the preformed pipe and generating a seam, characterized by the fact that the gauge die is provided with a substantially annular active surface, located at a suitable distance behind the welding apparatus, in order to prevent any widening and deformation of the welded pipe. (Machine-translation by Google Translate, not legally binding)
ES0268264A1961-06-151961-06-15New method and machine for manufacturing cold tubes (Machine-translation by Google Translate, not legally binding)
ExpiredES268264A2
(en)