Pencil sharpener for cosmetic pencils

Claim 1

A PENCIL SHARPNER ADAPTED FOR SHARPENING A COSMETIC PENCIL HAVING A RELATIVELY SOFT AXIAL CORE OCCUPYING MOST OF THE DIAMETER OF THE PENCIL, COMPRISING AN ELONGATED BODY MEMBER HAVING A BACKWARD PORTION FORMING A PASSAGEWAY TO RECEIVE AND SUPPORT FOR RELATIVE ROTATION THEREIN AN END PORTION OF SAID PENCIL, SAID PASSAGEWAY COMPRISING A CYLINDRICAL SECTION OF NEARLY THESAME DIAMETER AS THE PENCIL AND A FRUSTO-CONICAL SECTION, SAID FRUSTO-CONICAL COAXIAL WITH SAID CYLINDRICAL SECTION, SAID FRUSTO-CONICAL SECTION TERMINATING IN AN END OPENING SUBSTANTIALLY SMALLER IN DIAMETER THAN SAID CORE OF THE PENCIL AND HAVING A SLOT THEREIN EXTENDING ALONG ITS TOP SIDE FROM SAID END OPENING SUBSTANTIALLY TO ITS BASE, A BLADE MOUNTED ON SAID BODY MEMBER AT ONE SIDE OF SAID FRUSTO-CONICAL SECTION, SAID BLADE HAVING A CUTTING EDGE LYING IN AND ALONG SAID SLOT, PARALLEL TO AND SLIGHTLY INSIDE THE SURFACE OF THE CONE DEFINED BY SAID FRUSTO-CONICAL SECTION, TO CUT SAID END PORTION TO THE TAPER DESIRED FOR THE TIP OF THE PENCIL, A FORWARD PORTION OF SAID CUTTING EDGE EXTEDING FORWARDLY AND DOWNWARDLY AHEAD OF SAID END OPENING THROUGH AN INTERSECTION OF SAID EDGE WITH THE AXIS OF SAID FRUSTO-CONICAL SECTION, AND CLEARANCE CAVITY FORMED IN THE FORWARD PORTION OF SAID BODY MEMBER AHEAD OF SAID END OPENING AND SAID BLADE, SAID CAVITY BEING OPEN BENEATH AND TO A SIDE AND FORWARDLY OF SAID FORWARD PORTION OF SAID CUTTING EDGE AND BELOW SAID END OPENING AND PROVIDING CLEARANCES BETWEEN SAID EDGE AND BOTTOM AND SIDE WALLS OF SAID CAVITY WHICH AT ALL POINTS ALONG SAID FORWARD PORTION OF SAID CUTTING EDGE ARE GREATER THAN THE DIAMETER OF SAID END OPENING, SO THAT IN THE EVENT OF BREAKAGE OF SAID TIP THE BROKEN CORE TIP WILL BE SHED FREELY AWAY FROM THE PATH OF SHARPENING MOVEMENT OF THE PENCIL CORE INTO SAID CAVITY.