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Time Circuit Closer

Description: Patent for a time circuit closer for use in managing the movements of secondary clocks regulated by a masterclock. Illustration included.
Date: January 8, 1907
Creator: Guthrie, William S.
Partner: UNT Libraries Government Documents Department

Secondary Electric Clock

Description: Patent for a secondary electric clock. This invention uses a predetermined movement of the clocks hands thereby preventing any abnormal movement in a secondary clock controlled by a master clock. Illustration included.
Date: May 28, 1907
Creator: Guthrie, William S.
Partner: UNT Libraries Government Documents Department