Sequential sewing apparatus

Claim 1

A ROTARY FABRIC POSITIONER, COMPRISING A SUPPORT, A FABRIC CLAMP MOUNTED ON SAID SUPPORT, AN ALTERNATING CURRENT INDUCTION MOTOR HAVING A STATOR AND A ROTOR CONNECTED TO ROTATE SAID SUPPORT IN A PREDETERMINED SENSE IN RESPONSE TO ALTERNATING CURRENT APPLIED TO SAID MOTOR TO CARRY SAID CLAMP IN A CIRCULAR PATH, SAID ROTOR AND STATOR HAVING A SET OF STABLE RELATIVE ANGULAR POSITIONS TO THE NEAREST OF WHICH THE ROTOR IS DRIVEN WHEN THE MOTOR IS ENERGIZED WITH DIRECT CURRENT, A SET OF CAMS ADJUSTABLY MOUNTED ON SAID SUPPORT FOR MOVEMENT THEREWITH IN A CLOSED PATH AND EACH FORMED WITH A KEEPER FOR A LATCH, A LATCH HAVING A CAM ENGAGING PORTION COMPRISING A CAM SURFACE FOR RIDING OVER A CAM AND ENTERING THE KEEPER WITH CLEARANCE, LATCH CONTROL MEANS FIXED WITH RESPECT TO SAID ROTOR AND COMPRISING MEANS YIELDABLY URGING SAID LATCH TO AN EXTENDED POSITION IN THE PATH OF THE KEEPERS ON SAID CAMS AT A LOCATION TO ENTER THE KEEPERS JUST AHEAD OF A POSITIONS AT WHICH SAID ROTOR IS IN ONE OF ITS STABLE POSITIONS WITH RESPECT TO THE STATOR IN SAID SENSE OF ROTATION OF THE SUPPORT AND RETRACTING MEANS OPERABLE WHEN ENERGIZED TO RETRACT THE LATCH OUT OF THE PATH OF THE CAMS, SWITCHING MEANS ACTUABLE TO A FIRST STATE, A SECOND STATE, AND A THIRD STATE, MEANS CONTROLLED BY SAID SWITCHING MEANS IN ITS FIRST STATE FOR APPLY-