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Dry Separator

Description: Patent for a separator for mills designed to separate valuable material from extraneous material. Illustrations included.
Date: September 28, 1909
Creator: Snowden, Rene Ravenel
Partner: UNT Libraries Government Documents Department

Core-Drill.

Description: Patent for a core drill for making bore holes in rocks to get out solid samples of the inside of rocks, which has an improved grabbing method for retrieving the piece of rock inside the hole.
Date: August 3, 1909
Creator: McLoughlin, Malacha J. & Wynn, John S.
Partner: UNT Libraries Government Documents Department

Electromagnetic Ore-Separator.

Description: Patent for an electromagnetic ore separator, which reduces the risk of any valuable particles falling with the waste mineral material below the magnetic surface.
Date: February 16, 1909
Creator: Charlton, Thomas
Partner: UNT Libraries Government Documents Department

Historical Geology Sheet: Texas Uvalde Quadrangle

Description: This areal map shows the topography, contour elevations, and a breakdown of the kinds of rocks and minerals found in the Uvalde Texas quadrangle region. The map contains a legend that represents with line patterns the surface contour of the region and the kinds of sedimentary rocks and minerals from diverse geological eras.
Date: April 1900
Creator: United States. Dept. of the Interior.
Partner: UNT Libraries

Structure-Section Sheet: Texas Uvalde Quadrangle

Description: This structure map shows the topography, altitude above sea level, and a breakdown of the kinds of rocks and minerals found in the Uvalde, Texas quadrangle region. The map contains a legend that represents with colors and line patterns the surface contour of the region and the kinds of sedimentary rocks and minerals from diverse geological eras.
Date: May 1900
Creator: United States. Dept. of the Interior.
Partner: UNT Libraries

Geologic Atlas of the United States: Uvalde Folio, Texas

Description: This atlas contains three colored maps from the quadrangle region around Uvalde (Culberson County) and Zavalla (Angelina County), Texas including historical geography, topography, and structure sections. The illustrated text of the atlas discusses the geological elevation of the area, provides in-depth breakdown of the kinds of rocks and minerals as well as other features of the region, and includes economic geology, agriculture and cattle raising information.
Date: 1900
Creator: United States. Department of the Interior.
Partner: UNT Libraries

Separating-Table

Description: Patent for a separating table for separating pulverized ore or other material "into its constituent elements" (lines 14-15).
Date: September 8, 1908
Creator: Sutton, Henry M.; Steele, Walter L. & Steele, Edwin G.
Partner: UNT Libraries Government Documents Department
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