21 Matching Results

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Railway-Brake.

Description: Patent for "railway brakes, which are constructed to grip the wheels, and which, in the event of an emergency, may be set to lift the wheels off the track in order to obtain a quick stoppage of the train" (lines 9-14) including illustrations and explanations of the brakes' components.
Date: June 26, 1913
Creator: Drake, Charles W.
Partner: UNT Libraries Government Documents Department

Animal Trap.

Description: Patent for an improved and simplified trap where "a large number of rats can be caught in succession before the trap has to be emptied, as the trap door arrangement is automatic in regard to resetting" (lines 20-24).
Date: June 23, 1914
Creator: Willard, Thomas A.
Partner: UNT Libraries Government Documents Department
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