Device for fastening a hook at the extremity of a measuring tape

Claim 1

IN A LINEAR MEASURING INSTRUMENT: (A) A HOOK HAVING A PLATE WITH AN UPSTANDING PART OF A GIVEN THICKNESS, SAID PART HAVING AN INNER AND AN OUTER FACE, (B) A TAPE OF A GIVEN THICKNESS HAVING: AN END, MEASURING GRADUATIONS ORIGINATING AT SAID END; A NOTCH AT SAID END FOR RECEIVING SAID UPSTANDING PART OF SAID HOOK, AND AN ELONGATED OPENING OF A GIVEN LENGTH SPACED FROM SAID NOTCH, (C) LUGS EACH HAVING A HEAD, SAID LUGS HAVING A HEIGHT GREATER THAN SAID THICKNESS OF SAID TAPE, A BOSS ADAPTED TO FIT IN SAID OPENING IN SAID TAPE AND SURROUNDING SAID LUGS, SAID BOSS HAVING A LENGTH SMALLER THAN SAID GIVEN LENGTH OF SAID OPENING BY AN AMOUNT EQUAL TO SAID THICKNESS OF SAID UPSTANDING PART, (D) A RETAINER MEMBER FITTING OVER SAID TAPE AND OVER ALL OF SAID OPENING, SAID MEMBER BEING SECURED TO SAID HEADS OF SAID LUGS WHEREBY SAID HOOK AND SAID MEMBER ARE SLIDABLE BETWEEN AN EXTENDED POSITION IN WHICH SAID INNER FACE OF SAID UPSTANDING PART OF THE HOOK IS ALIGNED WITH SAID END OF SAID TAPE WHERE SAID GRADUATIONS ORIGINATE AND A RETRACTED POSITION WHEREIN SAID PART IS RECEIVED IN SAID NOTCH OF SAID TAPE.