Pivoting shoe for portable electric jig saw

Claim 1

IN A PIVOTING SHOE FOR A PORTABLE ELECTRIC JIG SAW, THAT IMPROVEMENT WHICH COMPRISES, IN COMBINATION: (A) A SUBSTANTIAL-FLAT WORK-ENGAGING PORTION; (B) A RAISED SEMI-CYLINDRICAL SHELL PORTION SECURED ON TOP OF SAID WORK-ENGAGING PORTION, CONCAVE WITH RESPECT TO SAID WORK-ENGAGING PORTION, AND EXTERNALLY ACCESSIBLE THROUGH SAID WORK-ENGAGING PORTION; (C) A HOUSING HAVING A LOWERMOST PORTION, COMPLEMENTARILY FORMED WITH SAID RAISED SHELL PORTION, AND RESTING UPON SAID SHELL PORTION; (D) A CAVITY FORMED WITHIN SAID LOWERMOST PORTION OF SAID HOUSING; (E) A LOCKING NUT RECEIVED WITHIN SAID CAVITY; (F) A CIRCUMFERENTIAL SLOT FORMED TRANSVERSELY WITHIN SAID SHELL PORTION; (G) A FASTENING SCREW PASSING UP THROUGH SAID SLOT TO ENGAGE SAID NUT; (H) A LOCKING FLANGE INTEGRALLY CARRIED BY SAID FASTENING SCREW; (I) A CLAMPING MEMBER BETWEEN SAID LOCKING FLANGE AND SAID RAISED SHELL PORTION, COOPERATING WITH THE INSIDE OF SAID SHELL PORTION, AND EXTENDING LONGITUDINALLY BEYOND SAID LOCKING FLANGE OF SAID FASTENING SCREW; (J) SAID LOCKING FLANGE HAVING A PLURALITY OF PERIPHERAL OPENINGS, CIRCUMFERENTIALLY-SPACED ONE FROM ANOTHER; (K) A SET SCREW PASSING UP THROUGH ONE OF SAID OPENINGS IN SAID LOCKING FLANGE; AND (L) A TAPPED HOLE FORMED IN SAID CLAMPING MEMBER TO RECEIVE SAID SET SCREW.