Machine for separating fragments of bone, gristle or sinew from comminuted meat

Claim 1

A MACHINE FOR SEPARATING FRAGMENTS OF BONE, GRISTLE OR THE LIKE FROM COMMINUTED MEAT AND COMPRISING, IN COMBINATION A CASING, MEANS FOR REVOLVABLE MEMBER JOURNALED ON SAID CASING, MEANS FOR REVOLVING SAID MEMBER, A HELICAL RIB ON THE OUTER PERIPHERAL SURFACE OF SAID MEMBER, A PRESSURE BAR DISPOSED LONGITUDINALLY OF SAID MEMBER, AN EDGE ON SAID PRESSURE BAR DISPOSED IN RELATIVELY CLOSELY SPACED RELATION WITH SAID OUTER PERIPHERAL SURFACE OF SAID MEMBER AND SAID RIB SO AS TO PRECLUDE THE PASSAGE OF SUCH FRAGMENTS THEREBETWEEN, MEANS DEFINING A SLOPING FACE ON SAID PRESSURE BAR EXTENDING FROM SAID MEMBER AT SAID EDGE AND DIVERGING THEREFROM IN A DIRECTION OPPOSITE TO THE DIRECTION OF MOVEMENT OF SAID MEMBER, MEANS DEFINING IN FRONT OF SAID PRESSURE BAR AN EXPOSED PORTION OF SAID OUTER PERIPHERAL SURFACE OF SAID MEMBER INCLUDING SAID RIB, AND MEANS FOR DIRECTING CONMINUTED MEAT TOWARD SAID EXPOSED PORTION.