Automobile door operated safety signal

Claim 1

IN AN AUTOMOTIVE VEHICLE HAVING TO EXTERIOR REAR LIGHTS WITH ONE ON EACH SIDE OF THE VEHICLE, A BATTERY, A FIRST NORMAL REAR LIGHT ENERGIZING CIRCUIT INCLUDING INDIVIDUAL CONDUCTORS CONNECTED SEPARATELY TO SAID TWO REAR LIGHTS, AND A SELECTIVELY OPERABLE SWITCH ADAPTED TO CONNECT SAID REAR LIGHT CIRCUIT INCLUDING BOTH BAID INDIVIDUAL CONDUCTORS THROUGH SAID BATTERY, AN EMERGENCY SIGNAL SYSTEM COMPRISING A THERMALLY ACTUATED SWITCH ADAPTED TO ALTERNATIVELY AND INTERMITTENTLY PASS A RELATIVELY SMALL AND A RELATIVELY HIGH AMPERAGE CURRENT, SAID SMALL CURRENT BEING INSUFFICIENT TO EFFECTIVELY LIGHT SAID REAR LIGHTS, A RELAY SWITCH HAVING A COIL CONNECTED IN SERIES WITH SAID THERMALLY ACTUATED SWITCH AND ADAPTED TO BE ACTUATED BY EITHER SAID LOW OR HIGH AMPERAGE CURRENTS, EMERGENCY CIRCUIT MEANS INCLUDING A SWITCH CLOSED BY THE ENERGIZED CONDITION OF SAID COIL CONNECTING SAID REAR LIGHT CIRCUIT TO SAID BATTERY THROUGH SAID THERMALLY ACTUATED SWITCH, INDEPENDENTLY OF SAID SELECTIVELY OPERABLE SWITCH, ANOTHER SWITCH CLOSED BY THE DEENERGIZED CONDITION OF SAID COIL CONNECTING SAID REAR LIGHT ENERGIZING CIRCUIT TO SAID BATTERY THROUGH SAID SELECTIVELY OPERABLE SWITCH, AND A SECOND SELECTIVELY OPERABLE SWITCH ARRANGED TO CONNECT SAID COIL AND THERMALLY ACTUATED SWITCH IN SERIES THROUGH SAID BATTERY TO PERMIT SELECTIVE ENERGIZATION OF SAID COIL.