Adjustable threshold

Claim 1

AN ADJUSTABLE THRESHOLD COMPRISING A BASE PROVIDED WITH A PLURALITY OF SPACED APART CUTOUTS THEREIN, A BAR RECTANGULAR IS CROSS SECTION ARRANGED CONTIGUOUS TO SAID BASE, SAID BAR HAVING A PLURALITY OF THREADED APERTURES THEREIN WHICH REGISTER WITH SAID CUTOUTS, SAID BAR ALSO HAVING A PLURALITY OF OPENINGS THEREIN WHICH INCLUDE LOWER PORTIONS OF UNIFORM DIAMETER AND UPPER PORTIONS OF FLARING ENLARGED CONFIGURATION, SECURING ELEMENTS INCLUDING THREADED SHANKS EXTENDING THROUGH THE LOWER PORTIONS OF SAID OPENINGS AND SAID SECURING ELEMENTS HAVING THEIR LOWER ENDS THREADEDLY ENGAGING SAID BASE, SAID SECURING ELEMENTS FURTHER INCLUDING ENLARGED HEADS ON THEIR UPPER ENDS SEATED IN THE UPPER FLARING PORTIONS OF SAID OPENINGS, A PAD OF YIELDABLE MATERIAL ARRANGED ABOVE SAID BAR AND SAID PAD BEING OF A WIDTH WHICH IS GREATER THAN THE WIDTH OF SAID BAR, A BODY MEMBER OF RIGID MATERIAL ARRANGED ABOVE SAID PAD, THERE BEING A RECESS IN THE LOWER SURFACE OF SAID BODY MEMBER FOR RECEIVING A PORTION OF SAID PAD, SAID BODY MEMBER HAVING A PLURALITY OF SPACED APART FLARING OPENINGS THEREIN WHICH REGISTER WITH SAID APERTURES AND CUTOUTS, AND SCREW MEMBERS PROVIDED WITH TAPERED HEADS ON THE UPPER ENDS SNUGLY SEATED IN SAID LAST NAMED OPENINGS, AND EACH OF SAID SCREW MEMBERS FURTHER INCLUDING A THREADED SHANK EXTENDING THROUGH SAID PAD AND ARRANGED IN THREADED ENGAGEMENT WITH SAID APERTURES, AND SAID SCREW MEMBERS HAVING PORTIONS THEREOF PROJECTING INTO THE CUTOUTS.