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Adjustable Tire Mold
Patent for a tire mold that improves the viability of a tire mold due to the adjustable levers used during the tire curing process.
Date:
December 7, 1920
Creator:
Hibbs, Cassell D.
System:
The Portal to Texas History
Water-Heating Attachment for Internal-Combustion Motors.
Patent for a water heating attachment for internal combustion motors that will allow the cooling fluid in said motors to remain heated even when the motor is at rest, especially during freezing temperatures, including illustration.
Date:
December 7, 1920
Creator:
Clayton, Oscar B. & Oberwetter, George T.
System:
The Portal to Texas History
Method of Sealing The Walls of Oil-Wells
Patent for a method of sealing oil wells to avoid applying casing to the wells to prevent leakage, seepage, or cave-ins.
Date:
December 7, 1920
Creator:
Nolan, William E.
System:
The Portal to Texas History
Ties and Fasteners for Railway-Rails
Patent for improved ties and fastenings for securing and binding together railway rails.
Date:
December 7, 1920
Creator:
Caudle, Robert E.
System:
The Portal to Texas History