The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 1997
Filed:
May. 31, 1995
Valmet Corporation, Helsinki, FI;
Abstract
An oil feed system for a variable-crown roll which includes a stationary roll axle, a roll mantle arranged revolvingly on the roll axle and hydraulic loading elements acting upon an inner face of the roll mantle in a radial direction and supporting the roll mantle on the roll axle. The loading elements function to regulate the axial profile of the roll mantle. In the roll axle, an axial through hole is formed which communicates with cylinder bores in which the hydraulic loading elements are arranged through substantially radial bores or equivalent ducts. In the axial through hole, at least through one of the roll ends, oil feed pipes are installed and through which pipes, a pressure fluid is fed to the hydraulic loading elements. Into the axial through hole in the roll axle, at the location of the loading elements, an intermediate flange is installed, which operates as a distributor piece and is connected with the loading element. One of the oil feed pipes passes to each of the distributor pieces to which each loading element is connected so that, through the distributor piece, the pressure fluid can be passed to the loading element whereby the loading produced by means of the loading element is adjustable in the desired way.