Cylinder for the guiding of endless webs of material

Details Cylinder for the guiding of endless webs of material Cylinder for the guiding of endless webs of material

1991-05-16

1992-04-14

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

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

291211, 162370, 226 95, 226190, D21F 310, D21F 148

Patent

active

051044897

ABSTRACT:
A hollow cylinder exhibits an internal body, which forms a sickle-shaped space by means of a partial cylindrical surface arranged eccentrically to the hollow cylinder, with a smaller radius than its internal radius. In this space there is created a vacuum on rotation of the hollow cylinder. By This means air is sucked out of the area through the boreholes of the hollow cylinder, where a web of material wraps the hollow cylinder. This leads to a firmer adherence of the web on material to the hollow cylinder.

REFERENCES:
patent: 3091563 (1963-05-01), Meyer
patent: 3758378 (1973-09-01), Berger
patent: 3846232 (1974-11-01), Kankaanpaa
patent: 3880711 (1975-04-01), Hayes, Jr.
patent: 4113557 (1978-09-01), Kankaanpaa
patent: 4915791 (1990-04-01), Ranniko

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