Resource Type
Counties
5 Matching Results
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Automatic Fan
Patent for mechanical improvements in "automatic fans intended especially for use on beds, whether in houses or in sleeping-cars" (lines 7-9).
Date:
December 17, 1889
Creator:
Comminge, Frank
System:
The Portal to Texas History
Centrifugal Pump
Patent for centrifugal pump design meant to improve upon past models in which pieces of the pump wear out over time.
Date:
December 17, 1918
Creator:
Duda, Oswald
System:
The Portal to Texas History
Sulphur-Mining Apparatus.
Patent for a thermal solvent based sulfur mining apparatus that is placed in a sulfur mining well. Utilizing thermodynamics, the apparatus has a new way to introduce air or steam into the various parts of the apparatus. It is designed with "simplicity and durability of construction" (lines 49-50).
Date:
December 17, 1918
Creator:
Carmichael, Robert E.
System:
The Portal to Texas History
Record-Book.
Patent for a record book using primary and secondary indexing tabs for improving classification of documents.
Date:
December 17, 1918
Creator:
Sumners, Gustavus D.
System:
The Portal to Texas History
Railway Rail Tie.
Patent for a new and improved railway-rail tie. This design consists "of a railway-rail tie provided with a transverse recess, projection, the transverse slots, and the apertures leading from the recesses to the slots, the retaining-blocks fitting in the apertures, and keys working in the slots and adapted to press the retaining-blocks against the flange and web of the rail" (lines 71-78).
Date:
December 17, 1889
Creator:
Jones, Richard
System:
The Portal to Texas History