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Application filed by IndividualfiledCriticalIndividual
Priority to FR7418742ApriorityCriticalpatent/FR2272764A1/fr
Publication of FR2272764A1publicationCriticalpatent/FR2272764A1/fr
Application grantedgrantedCritical
Publication of FR2272764B1publicationCriticalpatent/FR2272764B1/fr
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D9/00—Bending tubes using mandrels or the like
B21D9/01—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Shaping Of Tube Ends By Bending Or Straightening
(AREA)
FR7418742A1974-05-301974-05-30Centring mandrel for large pipes being worked - has end reinforcement and bolted cages for sprung centring rollers
GrantedFR2272764A1
(en)
