Cutoff mechanism for a film rewinder

Claim 1

A REWIND MACHINE FOR WINDING A FLIM OF THIN AND LIMP MATERIAL UPON A CORE AND HAVING A ROTATABLE REEL FOR SUPPORTING A PLURALITY OF CORES AND A CAGE ASSEMBLY INCLUDING A PLURALITY OF ROLLERS FOR CLAMPING UPON A CORE WHILE IT IS BEING WOUND WITH SAID FILM, A CUTOFF MEANS FOR SAID FILM, A PAIR OF ARM MEMBERS FOR SUPPORTING SAID CUTOFF MEANS TRANSVERSELY OF SAID FILM, A CAM MEANS MOUNTED UPON SAID REEL AND EGAGEABLE BY SAID ARMS, AND A RESILIENT MEANS FOR MAINTAINING THE ARMS IN ENGAGEMENT WITH SAID CAM MEANS, SAID CAM MEANS BEING ADAPTED TO CAUSE MOVEMENT OF SAID ARMS SO THAT THE CUT-OFF MEANS WILL BE MOVED AWAY FROM SAID FILM AND BEING FURTHER ADAPTED TO ALLOW SAID RESILIENT MEANS TO MOVE SAID ARM MEMBERS SO AS TO SEVER THE FILM AT A POINT SOMEWHERE BETWEEN A WOUND CORE AND AN UNWOUND CORE AFTER THE UNWOUND CORE HAS BEEN BROUGHT INTO ENGAGEMENT WITH SAID FILM AND THE CAGE ASSEMBLY HAS MOVED TOWARD CLASPING RELATIONSHIP UPON SAID UNWOUND CORE.