Adjustable shoulder bolt for use in a stripper means

Claim 1

IN COMBINATION WITH A PUNCH PRESS HAVING A TOP SHOE CARRYING PUNCHING MEANS, A STRIPPER PLATE AND AN ADJUSTABLE SHOULDER BOLT INCLUDING A NUT MEMBER AND STUD MEMBER OF CIRCULAR CROSS SECTION, SAID STUD BEING EXTERNALLY THREADED AT BOTH OF ITS ENDS AND HAVING A BODY SECTION OF UNIFORM DIAMETER INTERMEDIATE THE THREADED ENDS, THE OUTSIDE DIAMETER OF THE BODY SECTION BEING LARGER THAN THE MAJOR DIAMETER OF EITHER OF THE THREADED END SECTIONS, THE BODY SECTION AT ONE END TERMINATING IN A SHOULDER THAT LIES IN A PLANE PERPENDICULAR TO THE STUD AXIS, THE NUT BEING IN THREADED ENGAGEMENT WITH THE THREADED STUD END OPPOSITE THE SHOULDER END, SAID NUT HAVING A DEEP COUNTERBORE IN THE FACE PRESENTED TOWARD THE SHOULDER END, SAID COUNTERBORE HAVING A DIAMETER GREATER THAN THE STUD DIAMETER AND WHEREIN THE THREADED STUD END PROJECTING THROUGH THE NUT MEMBER HAS A WRENCH RECEIVING SURFACE FOR THE APPLICATION OF TORQUING FORCES TO THE STUD, THE SHOULDER END OF THE BOLT BEING SEATED IN THE UPPER FACE OF THE STRIPPER PLATE, THE STUD BODY PASSING THROUGH A GUID HOLE IN THE TOP SHOE, A HELICAL COMPRESSION SPRING SURROUNDING THE STUD BODY AND POSITIONED BETWEEN THE LOWER SHOE FACE AND THE UPPER FACE OF THE STRIPPER PLATE AND WHEREIN THE END OF THE STRIPPER BOLT NUT THAT IS PRESENTED TOWARD THE SHOULDER END BEARS AGAINST A FLAT SURFACE ON THE UPPER FACE OF THE TOP SHOE.