Polishing of corneal lenses

Claim 1

POLISHING APPARATUS FOR POLISHING THE RIM OF CORNEAL LENSES, COMPRISING, IN COMBINATION, A ROTARY POLISHER AND A HAND TOOL FOR HOLDING THE LENS TO BE POLISHED AND ROTATING IT AROUND ITS AXIS, SAID POLISHER COMPRISING A HEAD MADE OF A RESILIENT MATERIAL, A ROTARY SHAFT ON WHICH IS MOUNTED SAID HEAD, WHILE SAID HAND TOOL COMPRISES A HANDLE HAVING AN AXIAL BORE, A SUPPORT SPINDLE CARRIED IN BEARINGS FITTED IN SAID AXIAL BORE OF THE HANDLE, WHICH BEARINGS ARE ADAPTED TO PREVENT AXIAL DISPLACEMENT OF THE SPINDLE, A GRIPPING DEVICE FOR HOLDING THE LENS TO BE POLISHED MOUNTED AT ONE END OF THE SPINDLE, SAID GRIPPING DEVICE BEING A SUCTION CUP MADE OF A RESILIENT MATERIAL, THE BOTTOM OF SAID CUP BEING IN COMMUNICATION WITH AN INTERNAL AXIAL BORE IN THE SUPPORTING SPINDLE, A PISTON SLIDING IN SAID INTERNAL BORE FOR MOVING TOWARDS AND AWAY FROM THE CUP, A ROD DISPOSED ALONG THE AXIS OF SAID INTERNAL AXIAL BORE AND FIXED TO SAID PISTON, AND ACTUATING SLEEVE SURROUNDING THE SPINDLE AND SOLID WITH THE ROD, A SCREW PASSING THROUGH AN ELONGATED OPENING FORMED LENGTHWISE IN THE WALL OF THE SPINDLE AND CONNECTING THE ROD TO THE SLEEVE, A RETURN SPRING DISPOSED IN THE INTERNAL AXIAL BORE AND SURROUNDING SAID ROD AS TO TEND TO MOVE SAID PISTON AWAY FROM SAID CUP, SAID APPARATUS FURTHER COMPRISING DRIVING MEANS FOR THE SPINDLE, SAID DRIVING MEANS COMPRISING A DRIVING MOTOR HAVING AN OUTPUT SHAFT, A REDUCTION GEAR CONNECTED TO SAID OUTPUT SHAFT, A FLEXIBLE DRIVE CONNECTING SAID REDUCTION GEAR TO THE END OF THE SUPPORT SPINDLE OPPOSITE TO THE CUP.