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Classifier and Separator.

Description: Patent for classifiers and separators used in mining to separate solids and liquids in the tank. It allows for easy removal and replacement of parts as they wear.
Date: March 19, 1918
Creator: Allen, Charles
Partner: UNT Libraries Government Documents Department

[News Script: Mine]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story. This story aired at 10pm.
Date: April 1, 1969, 10:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

[News Script: Uranium]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story. This story aired at 10:00pm.
Date: March 30, 1969, 10:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections

Illinois

Description: Map shows Illinois counties, major roads, township grid, existing towns, marshlands, and mining activity during the early nineteenth century. Includes text describing township grid system. Inset: Map of the lead mine region, east of the Mississippi River. Scale [ca. 1:1,350,000] and [ ca. 1:1,000,000].
Date: 1834
Creator: Young, J. H. (James Hamilton)
Partner: University of Texas at Arlington Library

Township map of Kansas.

Description: Map shows counties, railroads, military forts, roads, some settlements, township grid, and parts of the Oregon Trail, Santa Fe and Westport Trail, Santa Fe and California Trail. Relief shown by hachures. Scale [ca. 1:760,320].
Date: 1856
Creator: Propper, Geo. N.
Partner: University of Texas at Arlington Library

Well-Drilling Apparatus.

Description: Patent for an improved, simple, and efficient well sinking or drilling mechanism, especially meant for bit-securing devices, and the drill bits can be easily removed without removing the well tubing from the hole. The inventor uses "a stem or core carrying the drill bit and adapted to fit snugly in the bore of the tubing, together with a simple combination of devices whereby such stem or core can be locked against longitudinal and rotary movement by the manipulation of an operating rod which extends to the top of the well" (lines 16-22).
Date: May 8, 1894
Creator: Horton, Stephen A.
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

Mining Sulfur.

Description: Patent for a method of mining sulfur and other things that have similar melting points that is less expensive and more efficient than previous methods. A machine sprays hot fluid at fissures where the mineral exists, melts it, and carries it away in the stream.
Date: April 27, 1897
Creator: Higgins, Pattillo & Carroll, George W.
Partner: UNT Libraries Government Documents Department

Ore Concentrator

Description: Patent for a "machine for separating ores of precious metals, and particularly to that class of machines known as 'dry concentrators or separators,' used for separating fold ore by means of an air-blast over dry sand, gravel, quartz, etc." (lines 10-15). Illustrations and instructions are included.
Date: August 17, 1897
Creator: Waer, Luis M.
Partner: UNT Libraries Government Documents Department

Mine-Door.

Description: Patent for an mine door that has an improved locking mechanism. A rope is strung through pulleys, and is operated by pushing a lever that moves the rope and the door swings open.
Date: March 6, 1894
Creator: Warren, Governor D.
Partner: UNT Libraries Government Documents Department

Bit for Well-Drilling Apparatus.

Description: Patent for an expansion bit for a well-drilling apparatus that can be "adjusted and removed without without withdrawing the well tubing, and to provide means whereby a bit capable of drilling a hole sufficiently larger than the well tubing to accommodate a casing may be introduced through the tubing" (lines 11-16).
Date: April 3, 1894
Creator: Horton, Stephen A.
Partner: UNT Libraries Government Documents Department

Car-Coupling.

Description: Patent for a simple and inexpensive car-coupling that improves on the pin-and-link car-couplings and "will be capable of coupling automatically and which may be readily uncoupled without going between cars" (lines 13-15). After the car has been separated, this coupling automatically puts its parts in position to be re-coupled. It also enables a "flying kick" to be transmitted to the car.
Date: November 24, 1896
Creator: Lee, Charles
Partner: UNT Libraries Government Documents Department

Drill.

Description: Patent for a simple, durable, and effective drill that "automatically expand[s] in the bottom of the well below the tubing, to cut a hole sufficiently large for the tubing without requiring a second drilling or reaming process" (lines 11-15).
Date: September 25, 1894
Creator: Lindholm, Charlie M.
Partner: UNT Libraries Government Documents Department

Well-Drilling Apparatus.

Description: Patent for an Artesian or oil well drilling apparatus that has a detachable drill-bit in its tubing and has an "improved means whereby an expansion drill bit or blade of any preferred construction can be secured to or detached from the drill tubing without removing the latter from the well" (lines 12-15). The tubing does not accidentally detach, and the tubing can rotate in either direction.
Date: October 2, 1894
Creator: Horton, Stephen A.
Partner: UNT Libraries Government Documents Department

Well-Drilling Apparatus.

Description: Patent for a well-drilling apparatus that easily attaches drill-bits to the ends of drill-tubes without removing the tubes from the well. It is meant for Artesian well-boring machines.
Date: April 9, 1895
Creator: Horton, Stephen A.
Partner: UNT Libraries Government Documents Department
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