D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 1/54 (2006.01) D21F 1/20 (2006.01) D21F 1/48 (2006.01)
Patent
CA 2279622
A papermaking apparatus such as a Fourdrinier table which includes a long blade (10) and a trail blade (14). In the first aspect of the invention, the long blade includes an upper undulated surface (12) with vents (18) passing from the upper undulated surface (12) to the lower surface of the long blade (10) which is at substantially atmospheric pressure. In the second aspect of the invention, the trail blade (14) includes an elevator-type device (22) for adjusting the vertical position of the trail blade (14). The first and second aspects may be used independently or simultaneously.
L'invention concerne un dispositif de fabrication de papier (par exemple, table Fourdrinier) comportant une lame longue (10) et une lame traînante (14). Selon un premier aspect de l'invention, la lame longue (10) présente une surface supérieure ondulée (12) dotée d'évents (18) allant de la surface supérieure ondulée (12) à la surface inférieure de la lame longue (10) qui est à pression sensiblement atmosphérique. Selon un second aspect, la lame traînante (14) a un mécanisme de type élévateur (22) qui permet de régler la position verticale de ladite lame traînante (14). On peut mettre en oeuvre le premier et le second aspects indépendamment ou simultanément.
Bachand Jeffrey P.
Carlton Keith
Grogan Daniel
Neun John A.
Macrae & Co.
Thermo Fibertek Inc.
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