Abstract: A spreader roll for web processing machines used in the paper, textile, and plastic industry. The roll has a stationary shaft on which a roll structure is rotatably mounted. A plurality of rigid cylinder segments form the surface of the roll structure. The cylinder segments are connected to each other movably in relation to each other and to the roll body. The cylinder segments are arranged about, and rotated together with a cylinder sleeve and are connected to each other cicumferentially through rigid retaining rings encircling the roll sleeve. The retaining rings oppose the displacement of the cylinder segments through centrifugal forces acting in the radial direction. The cylinder segments are arranged in parallel rows along the cylinder axis and interconnected to each other within the rows. Annular carriages within the roll structure rotate as integral parts of the roll and at angles to the roll-axis.

Abstract: A press roll having a shaft, a cylindrical shell and axially arranged support devices mounted on the shaft to exert radial forces on the shell in opposition to pressing forces to prevent shell distortion. Ducts in the shaft convey fluid under pressure to the support devices each of which includes an annular chamber defined by annular radially extending walls with peripheral axial flanges, an annular compressible and flexible ring and seals to keep the fluid from leaving the chamber. Various embodiments of the annular rings and seals are disclosed. Pivot bearings prestress the system and support the shell on the shaft for relative eccentric rotation.