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T-Square.

Description: Patent for a new and improved t-square. This design calls for a triangular prism of a tongue, which enables more scales to be available to the work-person. The head, with its brackets and rabbet, will fasten the tongue in place while the work-person uses it.
Date: November 7, 1882
Creator: Rowe, Joseph William
Partner: UNT Libraries Government Documents Department

Process of Ginning Cotton.

Description: Patent for a process of ginning cotton that is "based upon the principle of a gradual or successive ginning of the seed, somewhat analogous to the gradual reduction process of grinding wheat or other grain" (lines 28-61). This process improves ginning by over thirty-three percent.
Date: November 7, 1893
Creator: Bachman, Joseph A.
Partner: UNT Libraries Government Documents Department
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