EP 0014813 B1 19821103 - METHOD OF FABRICATING SLIT TUBES FOR A TUBE WELDING MACHINE AND DEVICE FOR CARRYING OUT THIS METHOD
Title (en)
METHOD OF FABRICATING SLIT TUBES FOR A TUBE WELDING MACHINE AND DEVICE FOR CARRYING OUT THIS METHOD
Publication
Application
Priority
DE 2906692 A 19790219
Abstract (en)
[origin: US4530225A] A strip-bending mill is assembled from a set of interchangeable stages, each stage imparting a particular curvature of the strip; a group of stages so assembled, stepwise bending a particularly wide strip or skelp into a tube. For bending a different width strip or skelp, a different group of stages is assembled, but usually including some of the previously used stages in different positions. None of the stages are adjustable. Particular simple construction features are able to be achieved.
IPC 1-7
IPC 8 full level
B21C 37/06 (2006.01); B21C 37/08 (2006.01); B21D 5/12 (2006.01)
CPC (source: EP US)
B21C 37/08 (2013.01 - EP US); B21D 5/12 (2013.01 - EP US)
Designated contracting state (EPC)
AT FR GB IT
DOCDB simple family (publication)
EP 0014813 A1 19800903; EP 0014813 B1 19821103; AT E1739 T1 19821115; DE 2906692 A1 19800821; DE 2906692 C2 19850221; SU 1080733 A3 19840315; US 4530225 A 19850723
DOCDB simple family (application)
EP 79730005 A 19791116; AT 79730005 T 19791116; DE 2906692 A 19790219; SU 2876404 A 19800204; US 12269780 A 19800219