Adjustable crown roll

Claim 1

A ROLL ASSEMBLY FOR FORMING A PRESSURE NIP WITH A SECOND ROLL COMPRISING: AN OUTER TUBULAR CYLINDRICAL ROLL SHELL, A NON-ROTATABLE SHAFT MEANS EXTENDING THROUGH SAID SHELL, MEANS SUPPORTING SAID SHAFT MEANS, BEARING MEANS BETWEEN THE ROLL SHELL AND SHAFT FOR POSITIONING THE ROLL SHELL AND TO MAINTAIN IT IN ALIGNMENT WITH THE SECOND ROLL, A RIGID ELONGATE LIMBER SHOE MEANS BENDABLE OVER ITS LENGTH HAVING AN OUTER SURFACE SUBSTANTIALLY COEXTENSIVE WITH THE LENGTH OF THE ROLL SHELL AND BEING IN AXIALLY CONTINUOUS SUPPORTING ENGAGEMENT WITH THE INNER SURFACE OF THE SHELL OPPOSITE THE NIP WITH SAID SURFACE BEING RIGID AND OF SUBSTANTIALLY THE SAME RADIUS OF CURVATURE AS THE INNER SURFACE OF THE ROLL SHELL AND HAVING A LEADING NOSE SURFACE SPACED FROM AND FACING THE ONCOMING ROLL SHELL INNER SURFACE TO BUILD UP A SUPPORTING FILM OF LUBRICATING FLUID DURING RELATIVE ROTATION OF THE ROLL SHELL FROM FLUID WITHIN THE SHELL, AND A CONTROLLED FLUID PRESSURE LOADING MEANS MOUNTED ON SAID SHAFT MEANS APPLYING RADIALLY OUTWARDLY DIRECTED FORCES TO SAID SHOE MEANS ALONG THE LENGTH THEREOF SO THAT A CONTINUOUS NIP LEADING LOADING FORCE IS MAINTAINED WITHIN THE ROLL SHELL INDEPENDENT OF BENDING OF THE NIP WITH LOAD.