Chain for flats of carding machines

Claim 1

A LINK CONSTRUCTION FOR A CHAIN COMPRISING (A) A BIFURCATE BODY HAVING A PAIR OF FIRST ARMS, (B) A SECOND ARM EXTENDING FROM SAID BODY IN THE OPPOSITE DIRECTION FROM SAID FIRST ARMS, (C) A BOSS PROJECTING INWARDLY FROM AT LEAST ONE OF SAID ARMS, (D) ANOTHER OF SAID ARMS HAVING A CIRCULAR RECESS IN AT LEAST ONE SIDE THEREOF AND BEING OF A DIAMETER SUCH AS TO LOOSELY RECEIVE A CORRESPONDING BOSS OF AN ADJACENT LINK THEREIN, (E) A CAM SURFACE ON THE END OF SAID BOSS OPPOSITE FROM SAID ONE OF SAID ARMS AND BEING SO INCLINED THAT THE BOSS IS THICKER AT ONE DIAMETRICAL PORTION THEREOF THAN IT IS AT A POINT TRANSVERSE OF THE DIAMETRICAL PORTION AND AT THE EDGE OF THE BOSS, AND (F) SAID OTHER OF SAID ARMS ALSO HAVING A RELATIVELY SHALLOW GROOVE THEREIN OF A WIDTH SUBSTANTIALLY THE SAME AS THE DIAMETER OF SAID RECESS WITH THE BOTTOM OF SAID GROOVE BEING INCLINED FROM THE ADJACENT EDGE OF SAID RECESS TO THE DISTAL OUTER SURFACE OF SAID OTHER OF SAID ARMS AND WITH THE GROOVE BEING DEEPER AT THE DISTAL OUTER SURFACE OF SAID OTHER OF SAID ARMS THAN IT IS AT THE RECESS.