Prismoidal rear view mirror having actuating rock cam

Claim 1

IN A MIRROR HAVING A HIGH AND LOW INTENSITY REFLECTION PANEL, A HOUSING SUPPORTING THE REFLECTIVE PANEL, A CHASSIS RELATIVELY PIVOTABLE IN AND ABOUT SAID HOUSING, FRICTIONAL MEANS SUPPORTING SAID CHASSIS, THE IMPROVEMENT COMPRISING IN COMBINATION, A ROCK CAM SUPPORTED BY THE BASE OF SAID HOUSING, A WIRE SPRING COOPERATIVELY COUPLED TO SAID CHASSIS AND HAVING A DEPENDING PORTION THEREON OPERATIVELY ENGAGING SAID ROCK CAM, SAID ROCK CAM COMPRISING CONGRUOUS HALVES, A CAM SURFACE FORMED IN EACH OF SAID HALVES AND EXTENDING SUBSTANTIALLY SLIGHTLY LESS THAN THE OVERALL SURFACE THEREOF, SAID CAM SURFACE BEING DEFINED BY AN AREA EXTENDING INTERIORLY INWARDLY FROM THE OVERALL SURFACE OF THE ROCK CAM HALF, A RECESS FORMED BELOW THE BASE DEPTH OF AND CONTIGUOUS OF EACH SUCH AREA OF SAID CAM SURFACE, THE RECESS IN EACH HALF OF SAID ROCK CAM BEING ADJACENT TO AND IN ALIGNMENT WITH THE AREA OF SAID CAM SURFACE IN THE OTHER HALF OF SAID ROCK CAM, EACH SUCH RECESS CONSTITUTING A POSITIVELOCK RECESS FOR SAID DEPENDING PORTION OF SAID WIRE SPRING, THEREBY LOCKING THE CHASSIS IN A LIMIT POSITION, SAID HOUSING AND PANEL CAPABLE OF PIVOTING ABOUT SAID CHASSIS SUPPORTED BY SAID FRICTIONAL MEANS UPON CAMMING OF SAID DEPENDING PORTION FROM ONE RECESS TO THE OTHER.