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Compressor.
Patent for a refrigerating machine compressor, which compresses more gas, cools the compressor with the incoming gas, and uses excess heat to dry the gas coming in.
Date:
April 19, 1910
Creator:
Mayhew, John Daugherty
System:
The Portal to Texas History
Automatic Fuse Plug
Patent for "improvements in automatic fuse plugs" (lines 12-12). These are "adapted to be successively engaged by a swinging contact arm" (lines 16-17).
Date:
May 19, 1914
Creator:
Bowman, Levi M.
System:
The Portal to Texas History
Churn
Patent for a churn that can produce butter in very short period of time with minimal effort.
Date:
May 19, 1913
Creator:
Hoefer, Charles Jr.; Belt, Marcus L. Jr. & Belt, William R.
System:
The Portal to Texas History