Papermaking machine having a suction zone free of wire supports

Details Papermaking machine having a suction zone free of wire supports Papermaking machine having a suction zone free of wire supports

1974-06-12

1976-11-16

Bashore, S. Leon

Paper making and fiber liberation

Apparatus

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

162301, 162306, 162351, 162364, D21F 152, D21F 902

Patent

active

039922537

ABSTRACT:
A papermaking machine of the Fourdrinier type having a machine wire which passes about a breast roll adjacent a head box and which passes around a further curved guide member spaced from the breast roll and about which guide member there is also entrained a belt in the form of a felt or additional wire. Beneath the machine wire between the breast roll and the curved guide member is a suction region which is characterized in that it is free of any wire supports or the like which would create pressure impulses in the suspension on the wire, which pressure impulses would interfere with the formation of the paper sheet.

REFERENCES:
patent: 2881671 (1959-04-01), Thomas
patent: 3079990 (1963-03-01), Taylor et al.
patent: 3441476 (1969-04-01), Schiel
patent: 3565757 (1971-02-01), Jordansson
patent: 3694311 (1972-09-01), Skeppstedt
patent: 3726758 (1973-04-01), Parker et al.

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