Control apparatus for automatic machine

Claim 1

THE COMBINATION, WITH A MACHINE THAT OPERATES THROUGH REPETITIVE CYCLES AND THAT HAS A STATION WHERE AN OPERATION IS PERFORMED ON SUCCESSIVE WORK PIECES BY CYCLIC MEANS MOVED TOWARD AND FROM THE WORK PIECE AT SAID STATION WITH EACH CYCLE OF OPERATION OF THE MACHINE, OF (A) DRIVING MECHANISM THAT SUPPLIES POWER TO THE MACHINE, (B) STOP MECHANISM FOR INTERRUPTING THE SUPPLY OF POWER, (C) AN ACTUATOR FOR THE STOP MECHANISM, (D) TWO ELECTRIC CIRCUITS CONNECTED IN PARALLEL WITH ONE ANOTHER AND EACH OF WHICH, WHEN IN OPERATIVE CONDITION, PREVENTS OPERATION OF THE ACTUATOR, (E) A FIRST CIRCUIT CONTROLLER THAT MAINTAINS ONE OF SAID ELECTRIC CIRCUITS IN ITS OPERATIVE CONDITION DURING A PRE-DETERMINED PART OF EACH CYCLE OF THE MACHINE, (F) A SECOND CIRCUIT CONTROLLER INCLUDING A SWITCH HAVING FLEXIBLE MAGNETIC CONTACT ELEMENTS AND AN ELECTRIC MAGNETIC FOR MOVING THE ELECTRIC CONTACT ELEMENTS, AND (G) A FINGER IN THE PATH OF MOVEMENT OF A WORK PIECE FROM SAID STATION, (H) THE FINGER BEING IN THE CIRCUIT OF THE MAGNET AND EFFECTIVE UPON CONTACT WITH THE WORK PIECE TO ENERGIZE THE CIRCUIT OF THE MAGNET AND OPERATING THE SWITCH TO PUT THE OTHER OF SAID ELECTRIC CIRCUITS IN OPERATIVE CONDITION.