Extended nip press arrangement

Details Extended nip press arrangement Extended nip press arrangement

1984-03-26

1985-12-31

Bashore, S. Leon

Paper making and fiber liberation

Apparatus

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

162205, 162305, 162306, 162358, D21F 304

Patent

active

045619395

ABSTRACT:
A paper machine press with a web being picked off a forming wire and passed through a first two roll nip sandwiched between upper and lower felts, the web transferred to the lower felt and then to a felt of a second press with the second double felted press being an extended nip type formed between an upper roll and a lower concave shoe with a relieved leading edge and a water impervious belt passing through the nip sliding over the shoe with the belt being guided on an annular stationary guide, the web transferred to the upper felt following the extended nip by a suction shoe within the felt and thereafter the web being transferred to a fifth felt.

REFERENCES:
patent: 2653523 (1953-09-01), Hornbostel
patent: 3215592 (1965-11-01), Justus et al.
patent: 3268390 (1966-08-01), Ely, Sr.
patent: 3671389 (1972-06-01), Wahlstrom et al.
patent: 4016032 (1977-04-01), Kankaanpaa
patent: 4201624 (1980-05-01), Mohr et al.
patent: 4219383 (1980-08-01), Valkama
patent: 4287021 (1981-09-01), Justus et al.
Justus et al., "Development of Extended Nip Press" TAPPI Conference, Sep. 1981.

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