Apparatus for Transmitting Sound-Waves (open access)

Apparatus for Transmitting Sound-Waves

Patent for transmitting sound waves by magnetic induction and to "furnish an apparatus by which these different vibrations can be heard at the receiving end" (lines 20-22). Includes descriptions and illustrations.
Date: October 17, 1911
Creator: Harvey, Fred Brown
System: The Portal to Texas History
Process of Refining Crude Cotton-Seed Oil. (open access)

Process of Refining Crude Cotton-Seed Oil.

Patent for a process for refining crude Cottonseed oil that produces more soap byproduct than other methods.
Date: October 31, 1911
Creator: Chisholm, Jesse C.
System: The Portal to Texas History
Cotton-Gin. (open access)

Cotton-Gin.

Patent for cotton gin, which includes a huller roller, seed bar, and seed grate to separate and remove seeds from the cotton. Ginning points/pins are used instead of saws. Due to the positioning of the ginning points/pins, the surface of the ginning cylinder in its entirety is available for ginning and there are fewer mechanical friction points.
Date: October 17, 1911
Creator: Hollingsworth, Joseph C.
System: The Portal to Texas History
Lantern. (open access)

Lantern.

Patent for an improved lantern that allows for lighting and extinguishing flame, and refilling oil, without having to lift the glass chimney. Includes illustrations.
Date: October 3, 1911
Creator: Ebrite, Lewis C.
System: The Portal to Texas History