Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...
Patent
1987-07-02
1988-09-06
Lacey, David L.
Paper making and fiber liberation
Apparatus
Running or indefinite length product forming and/or treating...
162300, 162301, 162352, 162354, 162374, D21F 136
Patent
active
047691115
ABSTRACT:
The present invention relates to a support apparatus of a dewatering unit (30) below a bottom wire of the twin wire forming section of a paper or board machine.
The problem in known, corresponding arrangements has been insufficient crosswise stiffness of the dewatering unit and lack of adjustability.
The above-mentioned disadvantages have been eliminated or minimized by a support arrangement, characterized in that the dewatering unit (30) is supported on beams (36) transversely in view of the machine direction by means of a hose-like pressure-medium filled elements (37), which also allow a longitudinal adjustment of the dewatering unit by means of an adjusting element (38).
REFERENCES:
patent: 3017930 (1962-01-01), Dunlap
patent: 3104223 (1963-09-01), Kasuya
patent: 3864207 (1975-02-01), Ekberg
patent: 3994774 (1976-11-01), Halme et al.
patent: 4523978 (1985-06-01), Pullinen
patent: 4559105 (1985-11-01), Sennett et al.
patent: 4623429 (1986-11-01), Tissari
Nevalainen Taisto A.
Nyman Tapani E.
A. Ahlstrom Corporation
Hastings K. M.
Lacey David L.
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