Twin-wire paper manufacturing machines

Details Twin-wire paper manufacturing machines Twin-wire paper manufacturing machines

1974-03-22

1976-03-02

Bashore, S. Leon

Paper making and fiber liberation

Apparatus

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

162352, D21F 100

Patent

active

039416518

ABSTRACT:
A twin-wire paper manufacturing machine wherein endless main and auxiliary wires are situated directly next to each other only at a convex forming surface of a forming board so that the compacting of the web takes place only between those parts of the main and auxiliary wires which assume the curvature of the forming surface. Preferably the curved forming surface forms part of a cylinder of constant radius so that the curvature of the wires during compacting of the web therebetween also is constant. By driving the wires at the same angular velocity as they travel along the forming surface, relative movement between the wires during compacting of the web therebetween is reduced to a minimum.

REFERENCES:
patent: 3236724 (1966-02-01), Wahlstrom
patent: 3543834 (1970-12-01), Stuebe
patent: 3565757 (1971-02-01), Jordansson
patent: 3726758 (1973-04-01), Parker et al.
patent: 3746613 (1973-07-01), Vauhkonen

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