Process and apparatus for forming a tube from a flat web

Details Process and apparatus for forming a tube from a flat web Process and apparatus for forming a tube from a flat web

B - Operations, Transporting

31

C

154/8.02

B31C 3/04 (2006.01) B31F 1/00 (2006.01) B31F 5/06 (2006.01)

Patent

CA 1194772

ABSTRACT OF THE DISCLOSURE Disclosed is a process and apparatus for forming a tube from a flat web by overlapping the edge zones of the web with one another or with a flexible strip while maintaining distance between the adhering, overlapping surfaces in order to provide horizontally straight edges, and thus a circumferentially constant diameter.

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