Resource Type

Combined Point and Bolt for Belts. (open access)

Combined Point and Bolt for Belts.

Patent for an invention provides means for securing bolts to elevator belts.
Date: October 27, 1914
Creator: Guffee, John A.
System: The Portal to Texas History
Apparatus for Generating and Carbureting Hydrogen. (open access)

Apparatus for Generating and Carbureting Hydrogen.

Patent for an apparatus that will improve the cost efficiency of producing gas. Specifically, this invention details a "main tank which produces hydrogen and an auxiliary tank wherein the hydrogen is mixed with crude petroleum oil and thereby given its illuminating and combustible properties" (lines 18-23).
Date: January 27, 1914
Creator: Stuart, Charles V.
System: The Portal to Texas History
Knob-Fastening. (open access)

Knob-Fastening.

Patent for improved knob fastening where the door knob will be held in place without the use of screws for increased durability, including illustrations.
Date: January 27, 1914
Creator: Collins, Horace B.
System: The Portal to Texas History