D - Textiles, Paper
21
D
D21D 5/06 (2006.01) B07B 1/20 (2006.01)
Patent
CA 2478566
A screen for cleaning or screening pulp suspension, the screen including a housing, a rotor and a screen cylinder, the screen cylinder having screen wires mounted at predetermined intervals between one another in the axial direction of the screen cylinder to form a cylindrical screen surface, the screen wires being fastened to circular supporting bars and the ends of the screen cylinder are provided with end rings of the screen cylinder, from which end rings the screen cylinder are arranged in connection with the housing of the screen, wherein the end ring is provided with at least one groove in the axial direction of the screen cylinder and the housing of the screen is provided with at least one wedge in the axial direction of the screen cylinder or the end ring is provided with at least one wedge in the axial direction of the screen cylinder and the housing of the screen is provided with at least one groove in the axial direction of the screen cylinder. The groove includes at least one plane surface substantially in the axial direction of the screen cylinder and the wedge includes at least one plane surface substantially in the axial direction of the screen cylinder. The wedge is arranged in the groove such that the plane surface on the wedge is arranged against the plane surface in the groove, whereby the plane surface on the wedge and the plane surface in the groove are arranged to be supported against one another to prevent the screen cylinder from rotating in relation to the housing of the screen.
Laakso Tauno
Toermaenen Hannu
Metso Paper Inc.
Ridout & Maybee Llp
LandOfFree
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