Thermal relay

Claim 1

AN AMBIENT TEMPERATURE COMPENSATED HOT WIRE RELAY MECHANISM RESPONSIVE TO CURRENT FLOW IN AN INPUT ELECTRICAL CIRCUIT FOR CONTROLLING THE CURRENT IN AN OUTPUT ELECTRICAL CIRCUIT COMPRISING A BASE, FIRST AND SECOND MATEABLE ELECTRICAL CONTACTS CONNECTABLE IN THE OUTPUT CIRCUIT, MEANS SUPPORTING SAID SECOND ELECTRICAL CONTACT UPON SAID BASE, RESILIENT MEANS SUPPORTING SAID FIRST ELECTRICAL CONTACT AND TENDING TO FORCE SAID FIRST ELECTRICAL CONTACT INTO A PRESELECTED RELATIONSHIP WITH SAID SECOND ELECTRICAL CONTACT, A PAIR OF SUPPORT ELEMENTS SUPPORTED IN SPACED RELATION UPON SAID BASE FOR SUPPORTING A METAL WIRE, SAID WIRE CONNECTED TO AND SUPPORTED BY AND TENSIONED BETWEEN SAID SUPPORT ELEMENTS CONNECTED IN THE INPUT CIRCUIT AND ADAPTED TO ELONGATED TO A SUBSTANTIAL DEGREE IN RESPONSE TO HEATING THEREOF RESULTING FROM CURRENT THERETHOUGH, AND MEANS INCLUDING SAID WIRE ENGAGING SAID RESILIENT MEANS FOR EXERTING A FORCE UPON AND CONTROLLING SAID RESILIENT MEANS, ONE OF SAID SUPPORT ELEMENTS HAVING A BIMETALLIC LEG PORTION DEFLECTABLE IN RESPONSE TO CHANGES IN TEMPERATURE TO TEND TO VARY THE TENSION IN SAID WIRE.