EP 0201729 A3 19870429 - DEVICE FOR THE PRODUCTION OF WRAPPED TUBE AS WELL AS A WRAPPED TUBE

Title (en)

DEVICE FOR THE PRODUCTION OF WRAPPED TUBE AS WELL AS A WRAPPED TUBE

Publication

EP 0201729 A3 19870429 (DE)

Application

EP 86104906 A 19860410

Priority

DE 8510780 U 19850412
DE 8510781 U 19850412

Abstract (en)

[origin: EP0201729A2] The device permits not only the production of cylindrical portions but also of conical portions. In addition, the invention claims protection for a correspondingly shaped conical tube. Conical tube portions are formed by virtue of the fact that the series of rolls containing the two driven rolls which roll on one another and containing the back-pressure roll is pivotably arranged and that guide rolls gripping the respectively most recent turn on the outside and on the inside are adjusted to the changing diameter. This is preferably accomplished with the aid of an electric circuit, for example in the form of a microprocessor. <IMAGE>

IPC 1-7

B21C 37/12; B21C 37/16

IPC 8 full level

B21C 37/12 (2006.01); B31C 3/00 (2006.01); F24F 13/02 (2006.01); F24F 13/24 (2006.01)

CPC (source: EP)

B21C 37/12 (2013.01); B31C 3/00 (2013.01); F24F 13/0245 (2013.01); F24F 13/24 (2013.01)

Citation (search report)

[Y] EP 0104844 A2 19840404 - SECURITY LUMBER & SUPPLY CO [US]
[Y] CH 440191 A 19670731 - ELUMIN AB OY [FI]
[A] GB 1276725 A 19720607 - EMBURY LLOYD ELLIOTT [CA]
[A] DE 1777330 B1 19720316 - ALUMINIUM FRANCAIS
[A] US 4197728 A 19800415 - MCGOWEN LLOYD E [US]
[A] GB 1125885 A 19680905 - LOTHAR KEHNE

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0201729 A2 19861120; EP 0201729 A3 19870429

DOCDB simple family (application)

EP 86104906 A 19860410