Wide belt abrasive machine

Claim 1

IN A WIDE BELT ABRADING MACHINE HAVING, IN COMBINATION, AN ENDLESS BELT, A ROLL DISPOSED WITHIN SAID BELT FOR PRESSING A TRANSVERSE AREA OF THE BELT AGAINST A PASSING WORKPIECE, A ROLL WITHIN THE BELT PARALLELING THE PRESSURE ROLL AND ADAPTED TO DRIVE THE BELT, A ROLL WITHIN THE BELT PARALLELING SAID PRESSURE AND DRIVE ROLLS AND ADAPTED FOR BODILY TRANSAXIAL ADJUSTMENT TO TENSION THE BELT AROUND THE ROLLS, A SELF-ALINING BEARING SUPPORTING ONE END OF SAID DRIVE ROLL FOR TILTING OF THE ROLL ABOUT A TRANSVERSE AXIS PERPENEDICULAR TO THE ROLL AND DISPOSED SUBSTANTIALLY IN THE PLANE OF SAID BEARING, A POWER DRIVEN SHAFT MOUNTED OUTWARDLY BEYOND SAID TRANSVERSE AXIS FOR ROTATION ABOUT A FIXED AXIS APPROXIMATELY ALIGNED WITH THE DRIVE ROLL AXIS, AND A UNIVERSAL COUPLING CONNECTING SAID SHAFT AND THE END OF SAID DRIVE ROLL FOR TRANSMITTING ROTARY POWER TO THE ROLL WHILE PERMITTING TILTING OF THE ROLL ABOUT SAID TRANSVERSE AXIS DURING SUCH ROTATION.