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Derailing Device.

Description: Patent for a "portable derailing device" (line 13) including illustrations.
Date: January 17, 1911
Creator: Martin, Daniel W.
Partner: UNT Libraries Government Documents Department

Bridle Rod

Description: Patent for a bridle rod that will be longitudinally adjustable for taking up the space that would be likely to occur between the switch points and the rails so that both of the switch points will, when the switch is operated, move to the proper position for presenting a smooth and even surface for the wheel flange of the railway rolling stock when the same pass over the switch.
Date: July 17, 1917
Creator: Robertson, Mc & Albritton, Lee Roy
Partner: UNT Libraries Government Documents Department
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