Emergency radio receiver

Claim 1

A RADIO RECEIVER ADAPTED TO RECEIVE CONVENTIONALLY BROADCAST PROGRAMS AND, IN THE ALTERNATIVE, TO RECEIVE EMERGENCY INTELLIGENCE CARRIED ON ONE OR MORE PREDETERMINED CARRIER FREQUENCIES COMPRISING: AN ANTANNA, FOR FREQUENCY-RESPONSIVE DEVICE HAVING AN INPUT CONNECTED TO THE ANTENNA, SAID DEVICE INCLUDING FILTER CIRCUITS ONE INDIVIDUAL TO EACH SAID FREQUENCY, SWITCHING MEANS CONNECTED TO AND ACTUABLE BY THE OUTPUT OF THE FILTER CIRCUIT THEN ACTIVE IN ACCORDANCE WITH THE ONE OF THE FREQUENCIES THEN BEING RECEIVED, A DETECTOR ADAPTED TO BE CONNECTED TO THE THEN-ACTIVE FILTER CIRCUIT THROUGH SAID SWITCHING MEANS FOR DEMODULATING THE INTELLIGENCE ON THE THE RECEIVED FREQUENCY, AN AUDIO AMPLIFIER, RECEIVING THE DEMODULATED SIGNAL FROM THE DETECTOR, RELAY MEANS ACTUATED BY THE OUTPUT OF SAID AMPLIFIER, A SPEAKER CONTINUOUSLY CONNECTED TO A SOURCE OF POWER CIRCUIT MEANS ACTUATED BETWEEN SAID RELAY MEANS AND SAID SPEAKER FOR ACTIVATING THE SPEAKER UPON ENERGIZATION OF SAID RELAY MEANS TO RENDER AUDIBLE THE INTELLIGENCE CARRIED ON THE RECEIVED FREQUENCY, A CONVENTIONAL BROADCAST RECEIVER ADAPTED TO UTILIZE SADI SPEAKER CONNECTED TO SAID ANTENNA INCLUDING A SECOND AUDIO AMPLIFIER PROVIDING AN OUTPUT TO SAID SPEAKER, AND CIRCUIT MEANS BETWEEN SAID SECOND AMPLIFIER RELAY MEANS TO CONNECT SAID SPEAKER TO SAID SECOND AMPLIFIER IN THE ABSENCE OF ANY OF SAID PREDETERMINED CARRIER FREQUENCIES.