Lens holder

Claim 1

A LENS HOLDING MECHANISM FOR A SPINNING OPERATION COMPRISING A LENS HOLDING DEVICE WHICH INCLUDES A FIRST PART HAVING A PLURALITY OF FIRST OPENING, FIRST LOCATING PINS DEPENDING THEREFROM, AND FIRST AND SECOND SLOTS; A SECOND PART HAVING PLURALITY OF SECOND OPENINGS EQUAL IN NUMBER TO SAID PLURALITY OF FIRST OPENINGS, A PLURALITY OF THIRD SLOTS EQUAL IN NUMBER TO SAID PLURALITY OF FIRST OPENINGS, A PAIR OF FIRST HANDLES, A CENTRAL BORE, AND THREADED SCREW HOLES; AND A THIRD PART HAVING A PLURALITY OF POST PLATES ROTATABLY ATTACHED THERETO, SAID PLURALITY BEING EQUAL IN NUMBER TO SAID PLURALITY OF SECOND OPENINGS, A RAISED PORTION WITH HOLES FOR RECEIVING SAID FIRST LOCATING PINS AND FOR LOCATING SAID BORE CENTRALLY WITH RELATION TO SAID THIRD PART, A PAIR OF SECOND HANDLES, HOLDING POSTS EXTENDING UPWARDLY FROM SAID POST PLATES, SECOND LOCATING PINS ON EACH OF SAID POST PLATES FOR INSERTION INTO SAID THIRD SLOTS, AND SPRING MEANS FOR URGING SAID POST PLATES TOWARDS THE CENTER OF SAID MECHANISM; WHEREIN A PAIR OF SETTING SCREWS ARE PROVIDED FOR INSERTION INTO SAID FIRST AND SECOND SLOTS, RESPECTIVELY, AND FOR THREADING INTO SAID THREADED SCREW HOLES OF SAID SECOND PART AFTER SAID PAIR OF FIRST HANDLES AND SAID PAIR OF SECOND HANDLES ARE ROTATED RELATIVE TO EACH OTHER TO CAUSE SAID SECOND LOCATING PINS, BY THE RELATIVE MOTION OF SAID THIRD SLOTS, TO ROTATE SAID POST PLATES AWAY FROM THE CENTER OF THE MECHANISM FOR INSERTION OF A LENS BETWEEN SAID HOLDING POSTS, TO THEREAFTER ALLOW SAID SPRING MEANS TO URGE AND HOLD SAID HOLDING POSTS TOWARD SAID CENTER, SO THAT SAID PAIR OF SETTING SCREWS CAN BE TIGHTENED THROUGH SAID FIRST AND SECOND SLOTS INTO THE THREADED HOLES IN SAID SECOND PART TO THEREBY HOLD A FIXED RELATIONSHIP BETWEEN SAID POST PLATES AND SAID THIRD PART FOR THE SPINNING OPERATION.