Motor alarm circuit

Claim 1

AN ALARM DEVICE FOR INDICATING THE INTERRUPTION IN OPERATION OF A MOTOR COMPRISING: A SOURCE OF OPERATING POTENTIAL FOR SAID MOTOR, A VOLTAGE RESPONSIVE RELAY FOR OPERATING AN INDICATOR DEVICE, SAID RELAY HAVING A WINDING AND FIRST AND SECOND NORMALLY OPEN CONTACT PAIRS, A CURRENT RELAY HAVING A WINDING AND NORMALLY CLOSED CONTACTS WHICH ARE OPENED WHEN CURRENT IS FLOWING IN SAID CURRENT RELAY, MEANS INCLUDING A NORMALLY OPEN RESET SWITCH FOR CONNECTING SAID VOLTAGE RESPONSIVE RELAY WINDING ACROSS SAID SOURCE OF OPERATING POTENTIAL, MEANS CONNECTING SAID CURRENT RELAY WINDING IN SERIES WITH SAID SOURCE OF OPERATING POTENTIAL AND SAID MOTOR, A STEPPING RELAY, A PAIR OF NORMALLY CLOSED CONTACTS, MEANS RESPONSIVE TO A PREDETERMINED NUMBER OF OPERATIONS OF SAID STEPPING RELAY FOR CAUSING SAID NORMALLY CLOSED CONTACTS TO BE OPENED, MEANS FOR APPLYING OPERATING POTENTIAL FROM SAID SOURCE TO THE WINDING OF SAID VOLTAGE RELAY THROUGH SAID NORMALLY CLOSED CONTACTS AND THE FIRST NORMALLY OPEN CONTACT PAIR OF SAID VOLTAGE RELAY WHEREBY SAID VOLTAGE RELAY WILL BE MAINTAINED OPERATED AFTER MOMENTARY OPERATION OF SAID RESET SWITCH CAUSES SAID FIRST NORMALLY OPEN CONTACT PAIR OF SAID VOLTAGE RELAY TO BE CLOSED, MEANS FOR OPERATING SAID STEPPING RELAY IN RESPONSE TO SAID NORMALLY CLOSED CONTACTS OF SAID CURRENT RELAY BEING CLOSED WHEREBY AFTER SAID CURRENT RELAY HAS BEEN RENDERED INOPERATIVE A PREDETERMINED NUMBER OF TIMES SAID VOLTAGE RELAY IS RENDERED INOPERATIVE, AN INDICATOR DEVICE, AND MEANS FOR APPLYING OPERATING POTENTIAL FROM SAID SOURCE TO SAID INDICATOR DEVICE THROUGH THE SECOND NORMALLY OPEN CONTACT PAIR OF SAID VOLTAGE RELAY.