Apparatus for Extracting Oils (open access)

Apparatus for Extracting Oils

Patent for a new and useful improvement "in a novel process and combination of devices or apparatus for extracting the oil from cotton seeds and other oil bearing seeds" (lines 8-12). Includes instructions and illustrations.
Date: December 14, 1886
Creator: Baumgarten, Christian
System: The Portal to Texas History
Harrow. (open access)

Harrow.

Patent for a harrow that is easily adjustable to different situations.
Date: December 14, 1909
Creator: Baumgarten, Johan Christian
System: The Portal to Texas History