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Railway Telephone and Signal Sign
Patent for Railway Telephone and Signal System (with illustrations).
Date:
September 30, 1915
Creator:
Neel, George E.
System:
The Portal to Texas History
Wire Stretcher
Patent for an improved wire-stretcher that is able to stretch wires while simultaneously holding the stretched wire during stapling.
Date:
June 22, 1915
Creator:
Kidd, Burrell L.
System:
The Portal to Texas History
Post Hole Auger
Patent for an improved post-hole digger/auger with multiple blades that cut in a spiral pattern and has the blades adjust and lock on the base. The blade shanks form a cage and keeps dirt from clogging the blades.
Date:
May 22, 1915
Creator:
Hoover, Orville M. & Ardery, Sarah, J.
System:
The Portal to Texas History