Former with a floating upper lip

Details Former with a floating upper lip Former with a floating upper lip

1998-06-30

2000-10-31

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

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

162347, 162336, 162317, D21F 104

Patent

active

061396907

ABSTRACT:
A former with a sieve, preferably with a cylinder mold, is provided with an adjustable discharge aperture for a fibrous material suspension exiting from a chamber that is formed between the sieve and an upper lip formed by a flow guide plate. The upper lip has a first end facing away from the chamber and is guided in a floating manner by a pressure medium in a direction toward the sieve, as well as in the opposite direction. The upper lip is supported in a floating manner also by a pressure medium at its second end facing toward the chamber. In this way, deflections of the upper lip in the region of the inlet aperture can be largely avoided.

REFERENCES:
patent: 3645843 (1972-02-01), Schmaeng
patent: 3853695 (1974-12-01), Back et al.
patent: 3909349 (1975-09-01), Stotz et al.
patent: 3947317 (1976-03-01), Stotz et al.
patent: 4154649 (1979-05-01), Stotz et al.
patent: 4342619 (1982-08-01), Gladh
patent: 4358342 (1982-11-01), Nutall
patent: 4980026 (1990-12-01), Kade

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