Annular ring control of feed stations for circular knitting machines

Claim 1

IN A CIRCULAR KNITTING MACHINE OF THE TYPE COMPRISING A NEEDLE CYLINDER, A PLURALITY OF YARN FEED STATIONS, AND A PLURALITY OF YARN GUIDES AT EACH STATION, EACH YARN GUIDE BEING INDIVIDUALLY MOVABLE BETWEEN OPERATIVE AND INOPERATIVE POSITIONS, THE IMPROVEMENT WHICH COMPRISES THE PROVISION OF A FIXED RING MEMBER CONCENTRIC WITH SAID CYLINDER; A PIVOTALLY MOUNTED SUPPORT MEMBER AT EACH FEED STATION, EACH SUPPORT MEMBER BEING CARRIED BY SAID RING MEMBER AND SUPPORTING ALL OF THE YARN GUIDES AT ONE OF SAID STATIONS, EACH OF SAID SUPPORT MEMBERS BEING MOVABLE BETWEEN AN OPERATIVE POSITION WHEREIN SAID YARN GUIDES AT EACH STATION ARE INDIVIDUALLY MOVABLE BETWEEN SAID OPERATIVE AND INOPERATIVE POSITIONS AND AN INOPERATIVE POSITION WHEREIN ALL OF SAID YARN GUIDES AT EACH STATION ARE HELD IN THEIR INOPERATIVE POSITIONS, A CAM RING MEMBER CARRIED BY SAID FIXED RING MEMBER CONCENTRICALLY WITH SAID NEEDLE CYLINDRICAL FOR LIMITED ANGULAR DISPLACE-