Procedure and apparatus for controlling the surface mass distrib

Details Procedure and apparatus for controlling the surface mass distrib Procedure and apparatus for controlling the surface mass distrib

1986-07-16

1988-08-09

Rimrodt, Louis K.

Textiles: fiber preparation

Assembling

Web forming

19304, B29C 1300, D21H 526

Patent

active

047618582

ABSTRACT:
A procedure for controlling the surface mass distribution of a paper web being formed on a dry paper machine, wherein the suction air recirculated to the former is utilized. In procedures of prior art, the surface mass distribution has not been uniform enough. With the aid of the present invention the problem has been solved in that the quantity of air blown to the former is adjusted in the cross-machine direction in order to obtain the desired surface mass distribution.

REFERENCES:
patent: 2698271 (1954-12-01), Clark
patent: 2715755 (1955-08-01), Jones
patent: 2940133 (1960-06-01), Heritage
patent: 4003105 (1977-01-01), Guschin et al.
patent: 4025254 (1977-05-01), Arnold
patent: 4258455 (1981-03-01), Werner

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