Abstract: A shaft straightening press including a movable carriage which moves along the length of an "I" beam frame and includes a hydraulic ram used for straightening a shaft placed upon the "I" press bed. The carriage rides upon the lower flange of the "I" beam by means of four wheels fixed to the carriage and making rolling contact with the upper surface of the lower flange. The carriage is locked into place by a pair of hydraulic jacks which lift the carriage, thereby disengaging each of the wheels from rolling contact with the lower flange. The carriage has a cross-sectional shape of a rectangular frame so that when the hydraulic jacks are lifted, the lower end of the rectangular frame of the carriage contacts the lower surface of the lower flange of the "I" beam, thereby securely locking the frame-shaped carriage in place. Slideable precision roller blocks and V-blocks are provided on the upper flange of the "I" beam for positioning and orienting the shaft to be straightened.

Abstract: A universal grinding bar adapted to be connected to a standardized, quick-change tool holder can be devised for use with conventional engine lathes, milling machines and the like and used as a standardized tool without the limitations of direct coupling to the drive of the engine lathe or milling machine. The universal grinding bar includes a modular delivery tube of selected shape and length and a modular turbine housing connected to the delivery tube and including a selected one of a plurality of pneumatic motors characterized by different operating speeds. Pressurized air is coupled through the end of the delivery tube distal from the turbine housing and is delivered to the pneumatic motor through a pressure tube. The spent air is then returned through a metering plate between the turbine housing delivery tube through an internal bore within the delivery tube to exhaust ports at the distal end. The delivery tube is of such diameter to allow connection to a conventional quick-change tool holder.