B - Operations – Transporting – 26 – F
Patent
B - Operations, Transporting
26
F
239/19
B26F 3/02 (2006.01) B26F 3/00 (2006.01) B65H 35/10 (2006.01)
Patent
CA 1320938
ABSTRACT OF THE DISCLOSURE This publication discloses a method and an apparatus for severing a perforated web (4). According to the invention, the web (4) is clamped by two clamping members (6, 7) extending essentially transversely over the web (4) against an anvil (1) placed on the opposite side of the web (4) so as to leave a perforated line (5) of the web aligned between the clamping members (6, 7), and the clamped web is tensioned by allowing a tensioning member (2) located between the clamping members (6, 7) to expand toward a backing bight (20, 21) formed behind the web (4) thus causing the web (4) to be severed at the perforation (5) with help of tensile stress. The solution in accordance with the invention provides a quick and reliable function.
570691
Harakka Pentti
Lappalainen Teuvo
Suuronen Lasse
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Valmet Paper Machinery Inc.
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