Arrangement for the web threading of a multi-roll calender

Details Arrangement for the web threading of a multi-roll calender Arrangement for the web threading of a multi-roll calender

2005-06-14

2005-06-14

Hug, Eric (Department: 1731)

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

C162S360300, C162S193000, C100S16200R, C100S173000

Reexamination Certificate

active

06905575

ABSTRACT:
In a paper/board or finishing/converting machine, a calender (1) comprises a number of rolls (2, 3) formed into a roll stack, and a number of lift-out rolls (4), which are arranged in such a way that the web (W) being treated travels from one calender (1) nip (N) to another via a lift-out roll (4). Between the calender (1) roll (2, 3) and the lift-out roll (4), the web (W) being treated is supported by means of at least one closing member (5, 5′, 6) not extending through the nip (N), which closing member is formed by a belt, wire or metal wire (7), which is arranged to travel via two or more guide rolls (4, 8).

REFERENCES:
patent: 1428852 (1922-09-01), McCarthy
patent: 2755711 (1956-07-01), Moore
patent: 2776605 (1957-01-01), McAfoos
patent: 3756912 (1973-09-01), Rooney
patent: 4491503 (1985-01-01), Adams et al.
patent: 4552620 (1985-11-01), Adams
patent: 4918836 (1990-04-01), Wedel
patent: 5784955 (1998-07-01), Conrad
patent: WO 02/22951 (2002-03-01), None

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