B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
100/24
B31B 13/02 (2006.01) D21G 1/02 (2006.01) F16C 13/00 (2006.01)
Patent
CA 1325920
ABSTRACT OF THE DISCLOSURE The invention concerns a fluid distribution system for a variable-crown roll adjustable in zones, this roll having a stationary central axle and a revolving roll mantle arranged on the axle. Hydraulic loading elements acting upon an inner face of the roll mantle or a corresponding pressure-fluid chamber, or a series of chambers, may be provided in a space between the central axle and the mantle, so that the axial profile of the variable-crown roll can be adjusted. The fluid distribution system of the roll has a system of fluid distribution ducts provided in connection with the central axle, with at least pressure fluid passing to zones of the roll being arranged to be supplied through this system. The system of fluid distribution ducts has an oblong, continuous profile of substantially circular section, which is provided with several axial ducts and with transverse bores for passing the fluid at least to the hydraulic loading elements. An axial hole has been formed into the central axle of the roll, and into which the profile is fitted. The profile is sealed on an outer face thereof with respect to this hole in the axle, by seals between the discrete zones.
599331
Marks & Clerk
Valmet Paper Machinery Inc.
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