Paper making and fiber liberation – Processes and products – Running or indefinite length work forming and/or treating...
Patent
1986-10-22
1988-10-25
Schor, Kenneth M.
Paper making and fiber liberation
Processes and products
Running or indefinite length work forming and/or treating...
162211, 162217, 162349, 162363, D21F 100
Patent
active
047801840
ABSTRACT:
A method and apparatus are provided for the adjustment of the dewatering in the wire section of a paper machine. A fiber web is fed on to a forming wire, and the forming wire is passed over the surface of at least one dewatering means and a partial vacuum dependent on the difference in the speeds of the wire and said surface is created under the forming wire. An additional movable wire is positioned to move between the forming wire and the dewatering means and the dewatering is adjusted according to the kind of the fibre web to be dewatered, by adjusting the speed of the additional wire independently of the speed of the forming wire.
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Hastings K. M.
Schor Kenneth M.
Tamfelt Oy AB
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