Degree Department
3 Matching Results
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Washboiler
Patent for improved Washboilers. The improvements provides a more efficient circulation of water to insure the proper cleaning of fabrics and prevent damage of the fabric.
Date:
February 22, 1921
Creator:
Patterson, Thomas Allison.
System:
The Portal to Texas History
Internal Combustion Engine
Patent for a improved Internal Combustion Engine. The improvement is the construction of the ignition of the internal combustion engine where the fuel in the compression chamber is ignited explosion of a different fuel of a more highly explosive nature.
Date:
August 9, 1921
Creator:
Simpson, Joseph Ryan.
System:
The Portal to Texas History
Sectional Rim
Patent for a sectional rim, which provides a sectional demountable tire rim with interlocking means to easily actuate and separate so that the tire can be removed from or applied to the rim.
Date:
May 31, 1921
Creator:
Williams, Harry S.
System:
The Portal to Texas History