Machine and method for edge grinding lens blanks

Claim 1

A MACHINE FOR CUTTING A BEVEL OF CONSTANT ANGULARITY ON ONE PERIPHERAL EDGE OF A WORK PIECE THAT HAS A NON-CIRCULAR PERIPHERY THAT EXTENDS AROUND AN AXIS OF THE WORK PIECE AND THE VERTICAL DISPLACEMENT OF WHICH PERIPHERY MEASURED FROM A BASE PLANE NORMAL TO SAID AXIS VARIES AT DIFFERENT LOCATIONS OF THE PERIPHERY AROUND THE AXIS, SAID MACHINE COMPRISING: A GENERALLY DISCSHAPED CONTROL CAM HAVING AN AXIS GENERALLY NORMAL TO SAID GENERALLY DISC-SHAPED CAM AND ABOUT WHICH AXIS THE PERIPHERY OF SAID CAM EXTENDS; AN AXIALLY EXTENDING WORK SUPPORT SHAFT; MEANS FOR SUPPORTING A WORK PIECE AND SAID CAM COAXIALLY ON SAID WORK SHAFT AT AXIALLY SPACED POSITIONS; A MACHINE SPINDLE POSITIONED TO ONE SIDE OF THE AXIS OF SAID WORK SUPPORT SHAFT; A SPINDLE SUPPORT MOUNTING SAID MACHINE SPINDLE FOR TRANSLATION TOWARD AND AWAY FROM SAID WORK SHAFT, A CAM FOLLOWER CARRIED BY SAID SPINDLE SUPPORT FOR ENGAGING SAID CAM, A CIRCULAR CUTTER MOUNTED ON SAID SPINDLE FOR ENGAGING A WORK PIECE, SAID CIRCULAR CUTTER HAVING A PERIPHERY DEFINED BY REVOLVING A STRAIGHT LINE ABOUT THE AXIS OF SAID SPINDLE AND WHICH PERIPHERY OF SAID CUTTER ENGAGES SAID WORK PIECE ON A LINE WHICH EXTENDED INTERSECTS THE AXIS OF SAID WORK SUPPORT SHAFT AT THE DESIRED PREDETERMINED ANGLE OF BEVEL FOR THE WORK PIECE, SAID PERIPHERY OF SAID CUTTER HAVING AN AXIAL DIMENSION RELATIVE TO SAID WORK SUPPORT WHICH IS GREATER THAN THE TOTAL VERTICAL DISPLACEMENT OF THE PERIPHERY OF SAID WORK PIECE SO THAT POINTS ON SAID PERIPHERY OF SAID WORK PIECE AT VARIOUS