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 2292420
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 (10) 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. In a third aspect of the invention, a single elevator (38) is used to adjust the angle of the blade, the blade is provided as a modular or multiple-piece design, mounting buttons (52) are used to engage slots of T-shaped cross section in the blade and/or ceramic inserts (62) are included at wear points.
L'invention porte sur un appareil de fabrication du papier tel qu'une table plate ou table Fourdrinier qui comprend une lame longue (10) et une lame arrière (14). Selon un premier aspect de l'invention, la lame longue (10) comprend une surface ondulée supérieure (12) pourvue d'évents (18) débutant au niveau de la surface ondulée supérieure (12) et débouchant sur la surface inférieure de la longue lame (10) se trouvant sous pression atmosphérique. Selon le deuxième aspect de l'invention, la lame arrière (14) comporte un dispositif de type élévateur (22) qui permet de régler la position verticale de la lame arrière (14). Selon un troisième aspect de l'invention, un élévateur unique (38) est utilisé pour régler l'angle de la lame, lame de forme modulaire ou en plusieurs pièces, des boutons de fixation (52) étant utilisés pour être engagés dans les fentes de la section transversale en T de la lame, et/ou des éléments d'insertion (62) en céramique étant ménagés au niveau des points d'usure.
Bachand Jeffrey P.
Carlton Keith
Grogan Daniel
Neun John A.
Macrae & Co.
Thermo Fibertek Inc.
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