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Process of Treating Speiss.

Description: Patent for "a new and improved process for treating speiss to obtain the valuable metals contained therein" (lines 8-10).
Date: November 15, 1892
Creator: Flury, Paul
Partner: UNT Libraries Government Documents Department

Ore-Separator.

Description: Patent for an improved, efficient, simple, and durable ore separator that quickly separates precious metals from sand. The operator puts the unfiltered material in the top of the separator, the material goes down a slide, through a stirrer, and out the other end.
Date: August 15, 1893
Creator: Dilworth, Robert
Partner: UNT Libraries Government Documents Department
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