Steady rests

Claim 1

IN A GRINDING MACHINE FOR GRINDING THE SURFACES OF AN ENGINE CAMSHAFT OR THE LIKE, THE COMBINATION COMPRISING A GRINDER MACHINE, A PLURALITY OF STEADY RESTS POSITIONED ON SAID MACHINE FOR SUPPORTING THE ENGINE CAMSHAFT AT LONGITUDINALLY SPACED POINTS DURING GRINDING, EACH SAID STEADY REST HAVING A CYLINDRICAL OPENING ADAPTED TO RECEIVE AND SURROUND A PORTION OF SAID ENGINE CAMSHAFT, SAID STEADY REST HAVING A PLURALITY OF CIRCUMFERENTIALLY SPACED PRESSURE PADS ABOUT SAID OPENING, AN ORIFICE ASSOCIATED WITH EACH PRESSURE PAD, AND MEANS FOR SUPPLYING LIQUID UNDER PRESSURE TO EACH SAID ORIFICE, THE PRESSURE OF LIQUID IN THE PADS OF EACH STEADY REST BEING EQUAL, SUCH THAT WHEN AN ENGINE CAMSHAFT IS PLACED IN POSITION WITH THE OPENING SURROUNDING SAID PORTIONS OF THE CAM SHAFT, A PRESSURIZED FILM OF LIQUID FLOWS CONTINUOUSLY THROUGH THE PRESSURE PADS BETWEEN THE SURFACES DEFINING THE OPENING AND THE SURFACES OF THE PORTIONS OF THE ENGINE CAMSHAFT SURROUNDED THEREBY SO THAT FORCES ARE APPLIED TO THE ENGINE CAMSHAFT TO REMOVE ANY AXIAL DISTORTION THEREIN AND MAINTAIN THE AXIS OF THE ENGINE CAMSHAFT IN A STABLE POSITION RELATIVE TO THE STEADY REST.