Extended nip press with displaceable center of gravity for the s

Details Extended nip press with displaceable center of gravity for the s Extended nip press with displaceable center of gravity for the s

1983-04-29

1987-12-15

Bashore, S. Leon

Paper making and fiber liberation

Apparatus

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

100118, 100153, 162205, D21F 306

Patent

active

047131470

ABSTRACT:
An extended nip press for a paper machine for removing water from a wet paper, cardboard or similar fibrous or porous web. The press comprises a rotating press roll and at least one loading shoe, which is pressed against the press roll so as to form an extended press zone. The loading shoe may pivot around an axis parallel to the axis of the press roll. The web to be dewatered is passed through the pressing zone together with at least one felt that receives water. The loading shoe is supported onto the support frame by the intermediate of a support means. The center of gravity of the support force applied by the support means to the shoe is displaceable in the direction of running of the web to be dewatered for the purpose of adjustment of the pressure pattern produced in the press zone when different paper qualities are run. The displacing of the center of gravity of the support force is performed either mechanically by shifting the support means in relation to the shoe, or hydraulically by changing the pressures in the two separate pressure cushions in the support means.

REFERENCES:
patent: Re30268 (1980-05-01), Justus
patent: 3293121 (1966-12-01), Martin
patent: 3974026 (1976-08-01), Emson et al.
patent: 4287021 (1981-09-01), Justus et al.

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