Evening Republican, Volume 18, Number 253, Rensselaer, Jasper County, 26 October 1914 — FIRE ALARM ON TELEPHONE [ARTICLE]

FIRE ALARM ON TELEPHONE

Automatic Device Sends Warning to Nearest Station, Indicating Location of Trouble. An automatic signaling device has been patented which can be attached to ordinary telephone sets, for sending in a fire alarm to the nearest fire headquarters, at the same time indicating the location of the party desiring protection. The mechanism, according to the Electrical World, consists of a push button on the subscriber's set which when pressed releases the signaling apparatus, thereby selecting the proper line from the exchange to the fire headquarters and sending in a signal characteristic of the station where the alarm originated. If the. telephone line is in use as a called line, the fire-alarm signal breaks in and severs the existing connection. If it is in use as a calling station, the call box is restrained until the existing connection has been broken and the switches returned to normal.