Clip-on receptacle or socket member for one-quarter turn stud

Claim 1

IN A DEVICE FOR QUICK DETACHABLY FASTENING TOGETHER A PAIR OF MUTUALLY OVERLYING PLATE MEMBERS, A SOCKET MEMBER CONSISTING OF A SINGLE FLAT STRIP OF SPRING METAL HAVING FIRST AND SECOND OPPOSITE END SECTIONS AND AN INTERMEDIATE SECTION, SAID FIRST END SECTION BEING TURNED WITH A SMALL RADIUS BEND BACK OVER SAID INTERMEDIATE SECTION, SAID SECOND END SECTION BEING TURNED WITH A LARGER RADIUS BEND BACK OVER SAID FIRST END SECTION AND DISPOSED IN PREDETERMINED SPACED RELATION TO SAID FIRST END SECTION FOR RECEIVING BETWEEN SAID END SECTIONS THE MARGINAL PORTION OF AN INNER ONE OF SAID PLATE MEMBERS, AND SAID INTERMEDIATE SECTION INCLUDING AN ARM EXTENDING FREELY FROM THE SMALL BEND END TOWARD THE LARGER BEND END THEREOF, AND A STUD HAVING A HEAD ON ONE END THEREOF FOR ENGAGING WITH AN OUTER ONE OF SAID PLATE MEMBERS, A MAIN BODY PART ADAPTED FOR EXTENDING FREELY THROUGH REGISTERING OPENINGS IN SAID PLATE MEMBERS, OPPOSITE END SECTIONS AND ARM, AND LUG MEANS ON THE OPPOSITE END OF SAID STUD, SAID STUD BEING OPERABLE FOR TURNING SAID LUG MEANS THEREBY TO EFFECTIVELY ENGAGE SAID ARM AND DRAW SAID PLATE MEMBERS, OPPOSITE END SECTIONS AND ARM TOGETHER AND OPERATIVELY SEAT EACH FIRMLY UPON AN UNDERLYING ONE THEREOF AGAINST THE INHERENT SPRING OF SAID SOCKET MEMBER.