Paper making and fiber liberation – Processes and products – Lead strip forming and/or guiding
Patent
1991-02-20
1993-02-09
Hastings, Karen M.
Paper making and fiber liberation
Processes and products
Lead strip forming and/or guiding
162194, 162286, 34116, 34117, D21F 504
Patent
active
051850630
ABSTRACT:
A method and an apparatus for cutting a paper web (W) in a group of drying cylinders provided with single-wire draw (13) in a paper machine or a finishing machine. The drying wire (13) is separated from the paper web (W) by one or more guide rolls (14a,14b) thereby creating an open draw (W.sub.o) of the web (W). The cutting of the paper web (W) is carried out at the open draw (W.sub.o) of the web (W). After the open draw (W.sub.o), the drying wire (13) and the web (W) are rejoined on the surface of the following leading or drying cylinder (11). Preferably, two guide rolls (14a,14b) are utilized whereby the first roll is disposed so that the drying wire (13) supports the web (W) up to the location of the guide roll (14a), which is followed by an open draw (W.sub.o) of the web. The drying wire (13) is returned onto the following leading or drying cylinder (11) with the second guide roll (14b).
REFERENCES:
patent: 4566944 (1986-01-01), Mauranen
patent: 4876803 (1989-10-01), Wedel
patent: 4918836 (1990-04-01), Wedel
patent: 4945655 (1990-08-01), Wedel
Aula Jouko
Liedes Allan
Saari Auvo
Hastings Karen M.
Valmet Paper Machinery Inc.
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