Automatic dry cleaning machine with refrigeration means

Claim 1

IN A DRY CLEANER CONTROL SYSTEM, A SEQUENTIAL CONTROLLER HAVING A TIMER MOTOR FOR DRIVING A PLURALITY OF CAM-OPERATED SWITCHES AND AUTOMATICALLY REGULATING A DRY CLEANER THROUGH A SEQUENTIAL PROGRAM OF WASHING, EXTRACTING AND DRYING PERIODS, AIR CIRCUIT MEANS FOR THE DRY CLEANER INCLUDING A VAPOR-CONDENSER AND A SOLVENT CONDENSER THERMOSTAT IN SAID VAPOR-CONDENSER, REFRIGERATION MEANS INCLUDING AN EVAPORATOR IN SAID VAPOR CONDENSER, FIRST, SECOND AND THIRD CAM-OPERATED SWITCHES IN SERIES WITH SAID THERMOSTAT, A REFRIGERANT CONTROL VALVE AND A MOTOR OPERATING SAID VALVE IN SERIES WITH SAID FIRST CAM-OPERATED SWITCH AND ENERGIZED THEREBY TO ALLOW REFRIGERANT TO FLOW THROUGH SAID EVAPORATOR, SAID TIMER MOTOR BEING ENERGIZED THROUGH SAID THIRD CAM-OPERATED SWITCH DURING A FIRST INTERVAL AND THROUGH SAID SECOND CAM-OPERATED SWITCH, SAID THERMOSTAT AND SAID FIRST CAM OPERATED SWITCH DURING A SECOND INTERVAL, SAID THERMOSTAT CLOSING DURING NORMAL OPERATION WITHIN SAID FIRST INTERVAL, A SIGNAL RELAY HAVING A SIGNAL ACTUATED THEREBY, SAID SIGNAL RELAY BEING IN PARALLEL WITH SAID TIMER MOTOR, WHEREUPON A MALFUNCTION IN THE REFRIGERATION SYSTEM SENSED BY A FAILURE OF SAID THERMOSTAT TO CLOSE DURING SAID FIRST INTERVAL WILL DEENERGIZE SAID RELAY AND SAID TIMER MOTOR DURING SAID SECOND INTERVAL, THEREBY ENERGIZING THE SIGNAL AND INDICATING THE MALFUNCTION TO AN ATTENDANT.