Horizontal twin wire machine

Details Horizontal twin wire machine Horizontal twin wire machine

1983-07-22

1985-07-30

Bashore, S. Leon

Paper making and fiber liberation

Processes and products

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

162208, 162211, 162301, 162303, 162348, D21F 140, D21F 100

Patent

active

045320080

ABSTRACT:
In a horizontal twin-wire paper machine, the paper sheet is initially formed in a wedge-shaped zone defined by generally horizontal runs of the primary wire and top wire which are brought into converging relation by cooperating sets of deflectors which support both runs against relative displacement by the stock therebetween and thereby cause liquid to be expressed through both of the wire runs throughout the wedge zone. The converged wires with the newly formed sheet therebetween then travel partially around one or more imperforate forming rolls, after which the top wire is guided away, and the sheet continues its travel on the primary wire. A major feature is the ease and simplicity with which the structure for supporting the top wire and the elements for defining the wedge zone can be added to an existing Fourdrinier machine to convert it to a twin-wire machine.

REFERENCES:
patent: 2881676 (1959-04-01), Thomas
patent: 3578561 (1971-05-01), McCarrick et al.
patent: 3772145 (1973-11-01), Notbohm
patent: 3847731 (1974-11-01), Arledter
patent: 3994774 (1976-11-01), Halme et al.
patent: 4125428 (1978-11-01), Phelps
patent: 4154645 (1979-05-01), Kankaanpaa
patent: 4176005 (1979-11-01), Bubik et al.
patent: 4417950 (1983-11-01), Bubik et al.
Bulletin Entitled "Top Flyte Former"-Sep. 1984, Published by The Black Clawson Company.
Pulp & Paper, Sep. 1982, pp. 130-135.
Pulp & Paper, Jul. 1984, pp. 114-118.

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