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4 Matching Results
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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
Excavator
Patent for excavator.
Date:
December 19, 1916
Creator:
Story, Ela D.
System:
The Portal to Texas History
Grave-Cover
Patent for a device to provide a temporary cover to open graves made of non-rusting materials with adjustable length.
Date:
September 19, 1912
Creator:
Rankin, Daniel H. & Cox, William, E.
System:
The Portal to Texas History
Seed Cotton Cleaner
Patent for a cleaner for seed cotton, in preparation for supplying the cotton to gins.
Date:
December 19, 1916
Creator:
Cass, Thomas M.
System:
The Portal to Texas History