Control circuit

Claim 1

IN A CONTROL CIRCUIT FOR A PACKAGING MACHING THAT HAS A FIRST ELECTRICALLY OPERATED DEVICE THAT STACKS ROWS OF PACKAGES ONE ABOVE THE OTHER, A SECOND ELECTRICALLY OPERATED DEVICE THAT TRANSPORTS A GROUP OF STACKED PACKAGES INOT A CARTON, AND A THIRD ELECTRICALLY OPERATED DEVICE THAT MOVES CARTONS TO AND FROM A PACKAGE RECEIVING STATION, THE COMBINATION THEREWITH OF; A FIRST TEST SWITCH THAT DETECTS C OMPLETION OF A ROW OF PACKAGES; A SET OF COUNTING RELAYS FOR OPERATING SAID FIRST ELECTRICALLY OPERATED DEVICE IN RESPONSE TO SAID FIRST TEST SWITCH, SAID RELAYS HAVING SELF-HOLDING MEANS FOR REMAINING IN OPERATED CONDITION TO INDICATE A COUNT OF THE ROWS OF PACKAGES, AND THE LAST OF SAID COUNTING RELAYS HAVING FIRST CONTACTS FOR PARTIALLY ESTABLISHING A CIRCUIT FOR SAID SECOND ELECTRICALLY OPERATED DEVICE, AND SECOND CONTACTS FOR ENERGIZING A HOLD RELAY; A HOLD RELAY HAVING A COIL WITH A CIRCUIT INCLUDING A SECOND CONTACTS OF SAID LAST COUNTING RELAY, A FIRST SET OF CONTACTS ADAPTED TO MAINTAIN OPERATION OF SAID FIRST ELECTRICALLY OPERATED DEVICE, AND A SECOND SET OF CONTACTS FOR PARTIALLY ESTABLISHING THE CIRCUIT OF SAID SECOND ELECTRICALLY OPERATED DEVICE; SECOND TEST SWITCH MEANS, RESPONSIVE TO AN OPERATION OF THE FIRST ELECTRICALLY OPERATED DEVICE, WITH CONTACTS IN THE CIRCUIT FOR SAID SECOND ELECTRICALLY OPERATED DEVICE; THIRD TEST SWITCH MEANS, RESPONSIVE TO AN INDICATIVE OF MACHINE OPERATION RESULTING FROM SAID SECOND CONTROLLING DEVICE; RESET RELAY MEANS RESPONSIVE TO SAID THIRD TEST SWITCH MEANS AND HAVING CONTACTS IN THE CIRCUIT OF SAID COUNTING RELAYS WHICH ARE OPERATED TO RESET THE COUNTING RELAYS TO UNOPERATED CONDITION; AND FOURTH TEST SWITCH MEANS RESPONSIVE TO COMPLETION OF A CARTON FILLING OPERATION OF SAID SECOND ELECTRICALLY OPERATED DEVICE, WHICH FOURTH TEST SWITCH MEANS HAS CONTACTS THAT DEENERGIZE SAID HOLD RELAY, AND PARTIALLY ESTABLISH A CIRCUIT FOR SAID THIRD ELECTRICALLY OPERATED DEVICE.