Apparatus for the manufacture of paper and board

Details Apparatus for the manufacture of paper and board Apparatus for the manufacture of paper and board

1977-03-14

1979-03-27

Fisher, Richard V.

Paper making and fiber liberation

Apparatus

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

162314, 162317, 162336, D21F 102, D21F 140

Patent

active

041464265

ABSTRACT:
The invention is concerned with a method and apparatus for use in the manufacture of paper and board in which pulp in suspension is directed at such an angle and at such a speed towards a screen travelling at a determined speed that the resultant direction of travel of the pulp relative to the screen is substantially at right angles to the screen. In a preferred form of the invention, the pulp suspension is discharged onto the screen as a curtain which extends across a substantial portion of the width of the screen. The invention also provides a chamber into which the pulp is discharged onto the screen, the chamber being sealed at inlet and outlet ends by rollers. The invention further provides for a pulp web formed on the screen to be transferred from the screen onto the roller at the outlet end by means of discharge vents located below the roller and the screen.

REFERENCES:
patent: 1984484 (1934-12-01), Kilberry
patent: 2265455 (1941-12-01), Serpas
patent: 3201306 (1965-08-01), Hornbostel, Jr.
patent: 4008122 (1977-02-01), Welte

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