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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
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

[Transcript of notice of partnership dissolution between Stephen Austin, Moses Austin, and Thomas Ruston, June 15, 1797]

Description: Copy of transcript of a notice dissolving a business partnership between Stephen Austin, Moses Austin, and Thomas Ruston. Brothers Stephen and Moses Austin continued in the lead mining business in Virginia after the dissolution of this partnership.
Date: June 15, 1797
Item Type: Refine your search to only Text
Partner: The Dolph Briscoe Center for American History

Under-Drilling Bit.

Description: Patent for improvements in the design of under drilling bits in order to "reduce labor, time and expense of drilling" and "to permit the drilling of a more perfect hole" (lines 25-27), including illustrations and a description of the design.
Date: July 15, 1913
Creator: English, Harry White
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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