Mounting mechanism for zoom magnifier

Claim 1

THE COMBINATION IN A MOUNTING MECHANISM FOR A ZOOM MAGNIFIER HAVING AN OBJECTIVE LENS GROUP AND AN OPTICALLY ALIGNED ZOOM LENS SYSTEM OF A BODY TUBE A FRONT LENS CELL LOCATED NEAR THE OBJECT END OF THE MAGNIFIER FOR MOUNTING SAID OBJECTIVE LENS GROUP, SAID CELL BEING SPACED AWAY FROM THE INNER SURFACE OF SAID TUBE TO FORM AN EXTENDED RECESS THEREBETWEEN, MEANS FORMED COOPERATIVELY ON THE FORWARD END OF THE BODY TUBE AND ON THE FRONT PART OF SAID LENS CELL FOR SECURING THE CELL IN THE TUBE, MEANS FORMED IN THE REAR PART OF SAID FRONT LENS CELL FOR SECURING A STATIONARY LENS MEMBER OF SAID ZOOM LENS SYSTEM THEREIN. AN INTERMEDIATE LENS CELL WHEREIN A MOVABLE LENS MEMBER OF SAID SYSTEM IS SECURED, SAID CELL HAVING AN ELONGATED ANNULAR SLEEVE FORMED ON THE FRONT SIDE THEREOF WHICH SLIDABLY FITS THE INNER SURFACE OF THE BODY TUBE AND OPERATES FREELY WITHIN SAID EXTENDED RECESS, A REAR LENS CELL WHEREIN A SECOND MOVABLE LENS MEMBER OF SAID SYSTEM IS SECURED, AN ACTUATING SLEEVE SLIDABLY MOUNTED ON THE REAR EXTERIOR SURFACE OF SAID BODY TUBE AND PROJECTING REARWARDLY THEREBEYOND, MEANS FIXING SAID REAR LENS CELL IN THE REAR END OF SAID ACTUATING SLEEVE SO THAT IT MOVES THEREWITH, MEANS OPERATIVELY FORMED A LONGITUDINAL SLOT IN SAID INNER SURFACE OF SAID ACTUATING SLEEVE, MEANS FORMING A FIRST CURVED HELICAL CAM SLOT IN THE BODY TUBE CROSSING SAID LONGITUDINAL SLOT NEAR SAID INTERMEDIATE LENS CELL, AN ACTUATING PIN ANCHORED IN THE INTERMEDIATE LENS CELL AND EXTENDING RADIALLY THROUGH SAID FIRST CURVED HELICAL SLOT AND SLIDABLY ENGAGED WITHIN SAID LONGITUDINAL SLOT, A PAIR OF NON-LINEAR PARALLEL CAM SURFACES DEFINING A SECOND CURVED CAM SLOT WHICH IS FORMED IN THE REAR PART OF SAID BODY TUBE, AND A SECOND ACTUATING PIN FIXED IN SAID ACTUATING SLEEVE AND EXTENDING INTO ENGAGEMENT WITH SAID SECOND CURVED SLOT WHEREBY ROTATION OF THE ACTUATING SLEEVE CAUSES THE SLEEVE AND THE REAR LENS CELL TO MOVE AXIALLY OF THE BODY TUBE AND SIMULTANEOUSLY CAUSES THE INTERMEDIATE LENS CELL TO MOVE BECAUSE OF ITS CONNECTION WITH THE LONGITUDINAL SLOT.