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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 ES0268238ApriorityCriticalpatent/ES268238A2/en
Publication of ES268238A2publicationCriticalpatent/ES268238A2/en
Improvements introduced in the object of the main Patent No. 243,875, by: "Machine for making pipes" in situ ", comprising a deposit of sheets, an apparatus for butting welding the successive sheets, a set curved composed of rollers; of closing and drawing by means of dies, an apparatus for welding the opening of the spout to form the longitudinal seam, and an advancing mechanism apt to drag the spout, grasping it by means of annular jaws, characterized in that the closure and drawing assembly comprises a plurality of matrices. (Machine-translation by Google Translate, not legally binding)
ES0268238A1961-06-141961-06-14Machine for manufacturing tubes (Machine-translation by Google Translate, not legally binding)
ExpiredES268238A2
(en)