Description: Patent for an automatic repeating railroad-signal designed to be used with semaphore and other train-signaling apparatus. It eliminates mistakes made in notifying the central office and automatically reports "any change in the position or color of the signal to a central office over the ordinary telegraph-wire" (lines 14-16). The signal is a wheel that operates a key to send a message to the central office.
Date: January 28, 1896
Creator: Innes, Robert Hayward
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Partner: UNT Libraries Government Documents Department