Resource Type

Center-Gage and Micrometer (open access)

Center-Gage and Micrometer

Patent for improvements to a center gage and inside micrometer to "provide central support for dividers" (lines 15-16) including illustrations.
Date: January 11, 1921
Creator: Snell, Charles
System: The Portal to Texas History
Gasolene-Measuring Device. (open access)

Gasolene-Measuring Device.

Patent for gasoline measuring device for improving service stations for patrons to see the amount of gasoline. Air pressure will transfer gasoline from tank into measuring device. Gasoline measuring device will be quickly delivered to patrons.
Date: January 25, 1921
Creator: McKallip, Jonathan C.
System: The Portal to Texas History
Indexing Device. (open access)

Indexing Device.

Patent for an indexer of paper documents in book form. It is made to open along the center with visible subject headings.
Date: January 18, 1921
Creator: Moran, Stanley C.
System: The Portal to Texas History
Tie-Buckle. (open access)

Tie-Buckle.

Patent for the improvement of tie buckles, specifically for bales of cotton at cotton gins. The paten includes an illustration of the tie buckle, explanations on how to easily use it, and why it is useful for cotton farming.
Date: January 11, 1921
Creator: Wallace, William M.
System: The Portal to Texas History
Pump-Valve (open access)

Pump-Valve

Patent for improvements in a pump valve. Designed to be used in pumping wells, particularly oil wells (Line 11).
Date: January 18, 1921
Creator: Sandlin, James W.
System: The Portal to Texas History
Sample Taking Device (open access)

Sample Taking Device

Patent for a sample taking device used in the process of drilling wells using water and a multi-armed unit that rotates to drill the stem into the ground.
Date: January 4, 1921
Creator: Dodds, Redus D.
System: The Portal to Texas History