Calking gun with trimming attachment

Claim 1

A CALKING GUN INCLUDING A BARREL HAVING A RECIPROCATABLE PLUNGER AND A PISTOL GROUP TYPE HANDLE SECURED TO THE BARREL, A PIVOT CARRIED BY THE HANDLE, A TRIGGER MEMBER PIVOTALLY MOUNTED ON THE PIVOT, MEANS INTERPOSED BETWEEN THE TRIGGER MEMBER AND THE PLUNGER TO ADVANCE THE PLUNGER EACH TIME THE TRIGGER MEMBER IS ACTUATED, A BLADE MEMBER PIVOTALLY MOUNTED ON THE PIVOT AND INCLUDING A SHEAR EDGE, SAID HANDLE INCLUDING A SHEAR EDGE, THE BLADE MEMBER BEING INTERPOSED BETWEEN THE HANDLE AND THE TRIGGER MEMBER AND POSITIONED FOR SHEAR EDGE COACTION WHEN THE TRIGGER IS PIVOTED ABOUT THE PIVOT, SAID MEMBERS HAVING ADJACENT SURFACES OVERLAPPING IN AN OVERLAP AREA, ONE OF THE MEMBERS INCLUDING AN ACTUATION PROJECTION PROJECTING FROM ONE OF ITS SURFACES AND ABUTTABLE AGAINST THE OTHER OF THE MEMBERS IN SAID OVERLAP AREA, SAID OTHER MEMBER INCLUDING A PROJECTION ABUTMENT WEDGE SURFACE INCLINED RELATIVE TO ITS SURFACE AND ARRANGED TO PROVIDE GRADUALLY INCREASING TIGHTER ABUTMENT WITH SAID ACTUATION PROJECTION AS THE SIZE OF SAID OVERLAP AREA IS INCREASED, AND SAID TRIGGER MEMBER BEING MOVABLE ABOUT THE PIVOT TOWARD AND AWAY FROM THE HANDLE TO SELECTIVELY ADVANCE THE PLUNGER AND SELECTIVELY BRING THE PROJECTION AND WEDGE SURFACE INTO COACTING ABUTMENT AND THEREBY CAUSE SIMULTANEOUS PIVOTING OF THE BLADE MEMBER.