Zoom lens mount having a common setting means for two independent adjustments

Claim 1

AN OBJECTIVE, FOR CAMERAS OR PROJECTORS, HAVING A VARIABLE FOCAL LENGTH AND A CONSTANT INTERCEPT LENGTH ON THE IMAGE SIDE, SAID OBJECTIVE COMPRISING, IN COMBINATION, A PLURALITY OF LENSES; MEANS MOUNTING AT LEAST A FIRST OF SAID LENSES IN FIXED POSITION AXIALLY OF THE OBJECTIVE; MEANS MOUNTING AT LEAST A SECOND OF SAID LENSES FOR AXIAL MOVEMENT THEREOF RELATIVE TO SAID FIRST LENS TO ADJUST THE OBJECTIVE FOCAL LENGTH, AND AT LEAST A THIRD OF SAID LENSES FOR AXIAL MOVEMENT RELATIVE TO SAID FIRST LENS TO ADJUST THE FOCUS OR RANGE OF THE OBJECTIVE; A COMMON SETTING MEANS OPERATIVELY CONNECTED TO SAID SECOND AND THIRD LENSES TO EFFECT BOTH ADJUSTMENT OF THE FOCAL LENGTH AND ADJUSTMENT OF THE FOCUS OR RANGE, SAID COMMON SETTING MEANS BEING MOVABLE IN A DIRECTION AXIALLY OF THE OBJECTIVE IN EFFECTING ONE ADJUSTMENT AND IN A DIRECTION ANGULARLY WITHOUT THE OBJECTIVE AXIS IN EFFECTING THE OTHER ADJUSTMENT; AND MANUALLY OPERABLE LOCKING MEANS OPERATIVELY ASSOCIATED WIHT SAID COMMON SETTING MEANS TO RELEASABLY LOCK THE LATTER AGAINST MOVEMENT IN AT LEAST ONE OF SAID DIRECTIONS WHILE SAID COMMON SETTING MEANS IS MOVED INT HE OTHER OF SAID DIRECTIONS, SAID MOUNTING MEANS INCLUDING A FIRST MOUNTING MEMBER FOR SAID SECOND LENS AND A SECOND MOUNTING MEMBER FOR SAID THIRD LENS, SAID MOUNTING MEMBERS BEING AXIALLY AND ADJUSTABLE RELATIVE TO SAID FIRST LENS AND BEING AXIALLY AND ANGULARLY ADJUSTABLE RELATIVE TO EACH OTHER; SAID LOCKING MEANS INCLUDING CLAMPING MEANS ON ONE OF SAID MOUNTING MEMBERS ENGAGEABLE WITH THE OTHER MOUNTING MEMBER TO RELEASABLY LOCK SAID MOUNTING MEMBERS AGAINST MOVEMENT RELATIVE TO EACH OTHER DURING MOVEMENT OF SAID COMMON SETTING MEANS IN EFFECTING ONE OF SAID ADJUSTMENTS.