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Combined Rail-Anchor and Tie-Plate

Description: Patent for a combined rail anchor and tie plate. The purpose of the invention is to combine the aforementioned devices to prevent rails from cutting into the ties, overturning, and spreading.
Date: January 24, 1919
Creator: Johnson, Robert
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Thread-cutting Tool.

Description: Patent for a thread cutting tool developed to efficiently thread bolts, rods, and other parts without damaging the ends of the thread, includes illustrations.
Date: August 5, 1919
Creator: Newman, Malcolm A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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