Condition monitoring system

Claim 1

IN A MONITORING SYSTEM FOR MONITORING A PLURALITY OF VARIABLE CONDITIONS HAVING INDIVIDUAL MEANS TO INDICATE THE CORRESPONDING CONDITIONS, A PLURALITY OF CONDITION SENSITIVE CIRCUITS EACH INCLUDING CONDITION SENSITIVE SWITCH MEANS AND AN INDIVIDUAL ALARM, A COMMON ALARM HAVING A COMMON ALARM ENERGIZING CIRCUIT, ACKNOWLEDGEMENT SWITCH MEANS TO ACKNOWLEDGE AN ABNORMAL CONDITION AND A RESET OF AN ABNORMAL CONDITION TO NORMAL, AND AN INTERMITTENT SWITCHING MEANS CONNECTED IN CIRCUIT WITH THE CONDITION SENSITIVE CIRUITS AND THE COMMON ALARM ENERGIZING CIRCUIT AND RESPONSIVE TO ACTUATION OF A CONDITION SENSITIVE SWITCH MEANS TO INTERMITTENTLY ENERGIZE THE CORRESPONDING INDIVIDUAL ALARM AND THE COMMON ALARM, SAID ACKNOWLEDGMENT SWITCH MEANS BEING CONNECTED TO THE CONDITION SENSITIVE CIRCUITS AND TO THE COMMON ALARM ENERGIZING CIRCUIT AND ACTUATED TO ACKNOWLEDGE THE ALARM AND OPERABLE TO CONTINUOUSLY ENERGIZE THE CORRESPONDING INDIVIDUAL ALARM AND DE-ENERGIZE THE COMMON ALARM, AND CIRCUIT MEANS RESPONSIVE TO RESET OF THE ABNORMAL CONDITION AFTER ACTUATION OF THE ACKNOWLEDGEMENT SWICH MEANS TO DE-ENERGIZE THE INDIVIDUAL ALARM AND CONTINUOUSLY ENERGIZE THE COMMON ALARM AND RESPONSIVE TO SUBSEQUENT ACUTATION OF THE SWITCH MEANS AND THE RESET OF THE ABNORMAL CONDITION TO SILENCE THE COMMON ALARM, EACH OF SAID CONDITION SENSITIVE CIRCUITS INCLUDING A HALF WAVE RECTIFIER IN SERIES WITH THE INDIVIDUAL ALARM AND THE CONDITION SENSITIVE SWITCH MERANS BETWEEN A POWER CONNECTION LEAD AND A COMMON PULSE LEAD,