Timer controlled alarm system

Claim 1

An alarm system comprising an alarm station, an indicator light at said station, an electrically operated alarm at said station responsive to a timed signal for producing an audible alarm at said station, an electrically powered clock located at said alarm station for providing said timed signal to said alarm in response to the lapse of a predetermined amount of time, an electrical power supply circuit for said clock, alarm and indicator light, first control means including a normally open relay in said circuit with said clock, alarm and indicator light, said relay controlling the power supply to said clock, alarm and indicator, second control means including a manually operable switch located at a station remote from said alarm station, an indicator light at said remote station in circuit with said switch, said switch being operatively connected to said relay to close said relay when said switch is closed and thereby complete the power supply circuit to said clock, alarm and indicator light at said alarm station and to open said relay when said switch is opened to thereby break the circuit between the power supply, clock, alarm and indicator light at said alarm station, said switch controlling the power supply to said indicator light at said remote station so that when said switch is closed power will be supplied to said light and when said switch is opened no power will be supplied to said light.