Slitter for paper winder or rewinder

Claim 1

A SLITTER FOR SLITTING A WEB MOVING IN A GIVEN DIRECTION OF MOTION, SAID SLITTER COMPRISING: A CIRCULAR SLITTER BAND MOUNTED FOR ROTATION ON A FIRST AXIS LOCATED ON ONE SIDE OF SAID WEB PARALLEL THERETO AND TRANSVERSE TO SAID DIRECTION OF MOTION, SAID SLITTER BAND HAVING FIRST AND SECOND AXIALLY SPACED OUTER CUTTING EDGES; A CIRCULAR SLITTER BLADE MOUNTED FOR ROTATION ON A SECOND AXIS LOCATED ON THE OPPOSITE SIDE OF SAID WEB, SAID SECOND AXIS MAKING A SHEAR ANGLE WITH SAID FIRST AXIS, SAID SHEAR ANGLE BEING APPARENT WHEN SAID SLITTER IS VIEWED ALONG A LINE NORMAL TO SAID WEB, SAID SLITTER BLADE HAVING AN OUTER SHARP EDGE; A FIXED MOUNTING BRACKET HAVING A MOUNTING SURFACE; A MOUNTING POST SUPPORTING SAID SLITTER BLADE, SAID MOUNTING PORT HAVING A FIRST CLAMPING SURFACE ON ONE SIDE AND A SECOND CLAMPING SURFACE ON THE OPPOSITE SIDE, SAID FIRST CLAMPING SURFACE BEING NON-PARALLEL WITH AND AT A PREDETERMINED ANGLE WITH SAID SECOND CLAMPING SURFACE; MEANS FOR CLAMPING SAID MOUNTING POST WITH EITHER SAID FIRST OR SAID SECOND CLAMPING SURFACE AGAINST SAID MOUNTING SURFACE, SAID CLAMPING SURFACES BEING SO RELATED TO SAID SECOND AXIS THAT WHEN SAID FIRST CLAMPING SURFACE IS CLAMPED AGAINST SAID MOUNTING SURFACE, SAID SHARP EDGE IS IN SHEARING COOPERATION WITH SAID FIRST CUTTING EDGE AND SHEAR ANGLE HAS A PRE-SELECTED MAGNITUDE, AND WHEN SAID SECOND CLAMPING SURFACE IS CLAMPED AGAINST SAID MOUNTING SURFACE, SAID SHARP EDGE IS IN SHEARING COOPERATION WITH SAID SECOND CUTTING EDGE AND SAID SHEAR ANGLE IS MAINTAINED AT SAID PRE-SELECTED MAGNITUDE BUT IS REVERSED IN SIGN.