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Combined Rail-Anchor and Tie-Plate
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
System:
The Portal to Texas History
Thread-cutting Tool.
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.
System:
The Portal to Texas History