Railroad-Crossing Signal
Description:
Patent for signaling devices designed for use along railroads and grade crossings and meant to be automatically operated upon the approach of a train by giving a visible or audible signal at the crossing which will warn travelers of the approach of the train and calcuated to avoid the occurrence of accidents. The signal device includes a track associated train operated circuit closing device for energizing a bell, flashing light, or signal arm or any other equivalence or suitable signal device …
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Date:
October 17, 1922
Creator:
Hamilton, Morgan Smith & Brady, Charles Pettus
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department