Hook bolt and nut assembly

Claim 1

A HOOK BOLT AND NUT ASSEMBLY FOR ENGAGEMENT THROUGH A BOLT APERTURE FROM ONE SIDE OF A MEMBER HAVING SAID BOLT HOLE APERTURE; COMPRISING IN COMBINATION A HOOK BOLT HAVING A HOOKED HEAD AT ONE END THEREOF INSERTABLE THROUGH SAID BOLT APERTURE AND ENGAGEABLE WITH THE REMOTE SURFACE OF SAID MEMBER FORMING THE BOUNDARY OF SAID BOLT APERTURE AND HAVING AN EXTERNALLY SCREW THREADED SHANK PORTION AT THE OTHER END THEREOF, A COMBINATION WASHER PLATE AND WEDGE ENGAGEABLE OVER SAID BOLT WITH SAID WEDGE ENTERING SAID BOLT APERTURE, AND A NUT ENGAGING UPON SAID THREADED SHANK PORTION WHEREBY SAID COMBINATION WASHER PLATE AND WEDGE COOPERATES WITH SAID HOOKED HEAD TO SECURE SAID ASSEMBLY TO SAID MEMBER, SAID COMBINATION WASHER PLATE AND WEDGE INCLUDING AN APERTURED PLATE, A WEDGE EXTENDING AT RIGHT ANGLES FROM THE PLANE OF SAID PLATE AND UPON ONE SIDE THEREOF, SAID WEDGE HAVING AN ARCUATELY CURVED OUTER SURFACE AND ARCUATELY CURVED INNER SURFACE, SAID INNER SURFACE CONVERGING TOWARDS SAID OUTER SURFACE FROM SAID PLATE TOWARDS THE DISTAL END OF SAID WEDGE, THE RADIUS OF CURVATURE OF SAID OUTER SURFACE BEING SIMILAR TO THE RADIUS OF CURVATURE OF SAID BOLT APERTURE WALL, THE APERTURE IN SAID PLATE BEING OF A DIAMETER SUFFICIENTLY GREATER THAN THAT OF THE BOLT SHANK TO PERMIT SAID WEDGE TO BE PIVOTED UNTIL SAID INNER SURFACE CONTACTS SAID BOLT SHANK, THEREBY FACILITATING ENTRY OF SAID WEDGE INTO SAID APERTURE.