Arrangement for synchronizing program controlled machine operations with machine movements

Claim 1

IN A KNITTING MACHINE, IN COMBINATION, AN ARRANGEMENT FOR SYNCHRONIZING PROGRAM NEEDLE SELECTING OPERATIONS WITH MACHINE MOVEMENTS, COMPRISING FIRST CONTINUOUSLY MOVABLE MEANS; CONTROL MEANS MOVING IN RIGID SYNCHRONISM WITH SAID FIRST MOVABLE MEANS; FIRST SWITCHING MEANS HAVING INOPERATIVE AND OPERATIVE CONDITIONS AND CONTROLLED BY SAID CONTROL MEANS TO CYCLICALLY ASSURE SAID OPERATIVE CONDITION FOR PREDETERINED FIRST TIME PERIODS AT EXACTLY SPACED TIME INTERVALS; SECOND CONTINUOUSLY MOVABLE MEANS; MEANS CONNECTING SAID FIRST AND SECOND MOVABLE MEANS FOR MOVEMENT; PROGRAM CONTROL MEANS FOR DETERMINING THE SELECTION OF NEEDLES IN ACCORDANCE WITH A DESIRED KNITTING PATTERN AND BEING CONTINUOUSLY DRIVEN BY SAID SECOND MOVABLE MEANS IN SUCH A MANNER THAT EXACT SYNCHRONISM OF SAID PROGRAM CONTROL MEANS WITH SAID FIRST MOVABLE MEANS CAN NOT BE MAINTAINED; SECOND SWITCHING MEANS HAVING INOPERATIVE AND OPERATIVE CONDITIONS, AND BEING CONTROLLED BY SAID PROGRAM CONTROL MEANS IN ACCORDANCE WITH A PROGRAM TO ASSUME SAID OPERATIVE CONDITION FOR SECOND TIME PERIODS LONGER THAN SAID FIRST TIME PERIODS AND TIMED SO THAT DURING RELATIVE MOVEMENT BETWEEN SAID FIRST AND SECOND MOVABLE MEANS AND SAID PROGRAM CONTROL MEANS, SAID FIRST TIME PERIODS FALL WITHIN SAID SECOND TIME PERIODS; AND AT LEAST ONE OPERATING MEANS FOR CONTROLLING NEEDLE SELECTING OPERATIONS, AND HAVING ELECTRIC ACTUATING MEANS CONNECTED INTO THE CIRCUIT OF SAID FIRST AND SECOND SWITCHING MEANS AND BEING ENERGIZED TO ACTUATE SAID OPERATING MEANS ONLY WHEN BOTH SAID FIRST AND SECOND SWITCHING MEANS ARE IN SAID OPERATIVE CONDITIONS WHEREBY SAID NEEDLE SELECTING OPERATIONS ARE CONTROLLED BY SAID OPERATING MEANS IN ACCORDANCE WITH A PROGRAM DETERMINED BY SAID PROGRAM CONTROL MEANS AND IN EXACT SYNCHRONISM WITH SAID FIRST MOVABLE MEANS IRRESPECTIVE OF RELATIVE MOVEMENT BETWEEN SAID FIRST AND SECOND MOVABLE MEANS AND SAID PROGRAM CONTROL MEANS.