Dry shavers having shearheads arranged at different levels

Claim 1

A DRY SHAVER COMPRISING THREE ELONGATED SHEAR HEADS SITUATED SIDE BY SIDE, EACH OF SAID SHEAR HEADS HAVING AN EXTERNAL SHEAR COMB PROVIDED WITH TRANSVERSE THROUGH-EXTENDING SLOTS, SAID HEADS HAVING BRIDGES BETWEEN SAID SLOTS WHICH ARE CONVEX, SAID SHEAR COMBS HAVING RELATIVE OPERATING POSITIONS IN WHICH TWO COMB EDGES FACING EACH OTHER OF TWO ADJACENT SHEAR HEADS ARE UNEQUALLY SPACED FROM A PLANE WHICH LIES AT RIGHT ANGLES TO THE LONGITUDINAL MEDIAN PLANES OF SAID TWO SHEAR HEADS, SAID SHAVER HAVING A CASING PROVIDED WITH A COVER PLATE, AND AT LEAST ONE OF SAID SHEAR HEADS BEING ADJUSTABLY MOUNTED WITH RESPECT TO ITS HEIGHT ABOVE SAID COVER PLATE OF THE CASING, SAID COVER PLATE HAVING A PAIR OF PLUG SLEEVES EXTENDING PERPENDICULARLY THEREFROM ON THE OPPOSITE SIDE FROM SAID SHEAR HEADS, SAID PLUG SLEEVES HAVING GUIDE SLOTS EXTENDING LONGITUDINALLY THEREOF, SAID COVER PLATE HAVING OPENINGS THEREIN REGISTERING WITH SAID PLUG SLEEVES, SAID ADJUSTABLE SHEAR COMB HAVING PLUG-PINS EXTENDING THROUGH SAID OPENINGS INTO SAID PLUG SLEEVES AND HAVING CROSS PINS PROTRUDING TRANSVERSELY THEREFROM INTO SAID GUIDE SLOTS OF SAID PLUG SLEEVES, MEANS RESILIENTLY SUPPORTING SAID ADJUSTABLE SHEAR HEAD ABOVE SAID COVER PLATE, AND MEANS FOR RELEASABLY ANCHORING SAID PLUG PINS OF SAID ADJUSTABLE SHEAR HEAD.