Automatic Fire-Alarm System.
Description:
Patent for an automatic fire alarm system with a simple arrangement of alarm devices (positioned throughout different rooms) with sound or visual indicators for fire awareness and closer thermal circuits (assisted with spring contact and circuit closer). The automatic fire alarm system will have a more immediate reaction by making an alert noise or visual and propping open the spring contact.
Date:
March 16, 1915
Creator:
Ammons, John Burck; Ammons, Evander & McGaffey, Otis
Item Type:
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Partner:
UNT Libraries Government Documents Department