Abstract: A roll grinding system includes a roll with a pair of longitudinally opposite ends, a longitudinal axis extending between the ends, and an outer surface. A material removal tool is movable in a travel path along a length of the roll. The material removal tool has a generally flat working surface oriented generally parallel to the travel path. A longitudinal displacement drive is connected with the material removal tool for moving the material removal tool along the travel path. A pair of supports are respectively positioned at and rotatably carry a corresponding end of the roll. At least one transverse displacement drive is provided, with each transverse displacement drive being connected with a corresponding support and configured to move the corresponding support in directions generally toward and away from the longitudinal axis.

Abstract: A dual roll grinder employs a first and second work station including a dual drive headstock disposed therebetween. A grinding assembly and the dual drive headstock translatably move along a bed to engage rolls in either of the two stations. This permits unloading and loading of a new roll in the station not currently active.

Abstract: A real time straightness deviation measuring and compensation device for a machine tool that automatically and continuously compensates for bed way deviation from a truly straight line relative to a workpiece. A wire, parallel to the workpiece or axis of workpiece rotation and perpendicular to the direction of machine tool compensation is utilized as a straightness reference, with the wire being stretched in the direction of machine tool carriage travel and supported on either end by weights for gravity induced straightness. A position indication device, such as a laser micrometer, is attached to the machine tool carriage and positioned around the reference wire in order to read the position of the wire relative to the machine tool carriage during real time operation. An electronically controlled servo motor attached to a machine tool supported on the carriage automatically adjusts the machine tool to compensate for carriage deviation caused by bed way deviation relative to the straight reference wire.