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

Apparatus for Sizing Ores or for Other Uses

Description: Patent for an apparatus for sizing ores. This invention is to "accomplish and accurate or approximately accurate sizing or classification of ores or granular materials in a rapid and thorough manner and with as large a capacity as possible" (line 15-19) illustrations included.
Date: June 23, 1903
Creator: Swain, Seth Russell
Item Type: Refine your search to only Patent
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.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Belt Lifter for Bull Wheels

Description: Patent for belft lifters for bull wheels for providing "a simple and efficient belt manipulating device peculiarly adapted to be used in connection with bull wheels of well drilling machinery" (line 11-14).
Date: March 23, 1915
Creator: Edward Peterson
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Apparatus for Separating Liquids in Emulsion.

Description: Patent for improved apparatus for separating liquids in emulsion (relates to improved apparatus for separating one liquid from another) when found in emulsion and has especial reference to means for rapidly and effectually dehydrating petroleum oil emulsion.
Date: May 27, 1919
Creator: McKibben, Charles W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Automatic Gas-Release Packer.

Description: Patent for automatic gas release packer that uses constant pressure regulated by spring-controlled valves for better control when lifting oil out of wells.
Date: April 11, 1922
Creator: Cummings, William J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Casing-Pulling Device.

Description: Patent for providing a casing pulling device of simple, compact and durable construction that will permit it being lowered into a well casing without being obstructed in its descent by irregularities or bends in the casing so as to ensure proper operation.
Date: 192X
Creator: Carter, George W. & Hayden, R.B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

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

The John Graves Scenic Riverway: A Report to the 83rd Legislature of Texas

Description: This report is a response increased citizens concerns for environmental impacts from development and expansion operations. The John Graves Scenic Riverway and other pilot programs were developed to to address water quality from rock, sand, and gravel mining.
Date: December 2012
Creator: Texas. Commission on Envirornmental Quality. Office of Compliance and Enforcement.
Item Type: Refine your search to only Report
Location: None
Partner: UNT Libraries Government Documents Department

Core-Discharge Apparatus.

Description: Patent for an Improvement in Core-Discharge Apparatus. It is meant to be used in connection with core drills in well or mine drilling. This improvement is meant to be carried to the surface by an air-lift pump.
Date: October 1, 1918
Creator: Carhichael, Robert E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Underground Injection Control Technical Assistace Manual: Subsurface Disposal and Solution Mining

Description: Report providing a comprehensive analysis of current injection well practices in Texas and information for the general public about current practices and how they protect the quality of water resources. It is also intended to be a general guide for persons considering or planning an underground injection project.
Date: April 1983
Creator: Greene, Charles J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

State Mine Inspector of Texas Annual Report: 1914

Description: Annual report of the State Mine Inspector of Texas describing the status of coal mining, including statistics about mines that have closed or are in the process of opening, fatal and non-fatal accidents, state regulations, and characteristics of open mines.
Date: 1915
Creator: Texas. State Mine Inspector.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Tube-Mill.

Description: Patent for improvements in tube-mills (employed for ore and other substances) which is meant to help support and drive rotating drums or cylinders of the mills allowing for more full appearances.
Date: October 1, 1918
Creator: Bergman, Julius G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Load-Indicator

Description: Patent for a load indicator that can be attached to the sustaining cable of a drill, allowing its operators to more carefully control the amount of weight applied to the drill bit while it is in use - making it less likely to be crushed during the process of drilling.
Date: unknown
Creator: Fletcher, Harold W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well-Boring Apparatus

Description: Patent for "new and useful improvements in well boring apparatus. The object of the invention is to provide an apparatus of the character described embodying a rotary table and a novel means for connecting the same to the string of pipe, which extends down into the well and which is rotated by said table and in turn rotates the boring tool carried by the lower end of said spring of pipe" (lines 9-18) including instructions and illustrations.
Date: October 19, 1920
Creator: Decker, Harry R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well-Auger.

Description: Patent for a well-boring auger is designed to improve the drilling process by multi-functional features of the auger that can be placed inside of a well-casing to cut a hole or can be used itself to cut through the casing.
Date: November 3, 1903
Creator: Hutchins, Charles N.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

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 ex… more
Date: May 8, 1894
Creator: Horton, Stephen A.
Item Type: Refine your search to only Patent
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.
Item Type: Refine your search to only Patent
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.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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