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Air-Lock for Mines and Tunnels

Description: Patent for an air lock to remove water, polluted air, and heat from mines and tunnels and force in fresh air. Illustrations included.
Date: September 8, 1908
Creator: Durack, Partick H.
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.
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.
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.
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.
Partner: UNT Libraries Government Documents Department

Well-Drilling Machinery.

Description: Patent for a mechanism that drills and bores; it attaches to a vehicle so the engine can be used to power the mechanism.
Date: June 27, 1893
Creator: Lee, Joseph G.
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.
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

Well-Drilling Apparatus.

Description: Patent for a well-drilling apparatus meant "to provide improved means for adjusting and withdrawing drill-tools without removing the drill-rod to provide a folding reamer and means for adjusting the blades thereof, and to provide means for conveying water to the drill, whereby the drillings are carried up outside of the drill-rod or barrel" (lines 9-16).
Date: December 24, 1895
Creator: Horton, Stephen A.
Partner: UNT Libraries Government Documents Department

Well-Drilling Machine.

Description: Patent for a simple and efficient well-drilling machine that is meant for drilling Artesian and other wells. This invention is a "mechanism for reciprocating and turning the tool during the drilling operation, and to provide for the lowering of the drill as the latter advances to the work and for the withdrawal of the same from the well when required for any desired purpose" (lines 8-15). It is also designed to remove water, mud, slush, etc. from the well while drilling.
Date: February 4, 1896
Creator: Catlin, Eli
Partner: UNT Libraries Government Documents Department

Well-Drilling Apparatus.

Description: Patent for a well-drilling apparatus for boring Artesian and other wells. It is meant to "provide simple, efficient, and durable means for expanding or spreading the reamer-blades after the bit-carrying devices have been lowered sufficiently to arrange the reamer-blades below the plane of the lower end of the tubular drill-rod" (lines 10-17). Water pressure is also used to remove the cuttings from the boring-blades. Sections of cable that suspend and lower drill-bit carrying parts into the dril… more
Date: February 18, 1896
Creator: Horton, Stephen A.
Partner: UNT Libraries Government Documents Department

Well-Bucket.

Description: Patent for a simple and efficient well-bucket that are used in bored, drilled, and dug wells. This invention will not get caught on things when it is being raised and lowered, can, by design, can withstand wear, and is meant to be automatically filled and emptied of its contents.
Date: November 5, 1895
Creator: Goodwin, Thomas J.
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

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
Partner: UNT Libraries Government Documents Department

Mineral-Prospecting Apparatus.

Description: Patent for an "apparatus for drilling and obtaining samples or specimens of minerals" (lines 12-13), and obtaining accurate samples of ores in situations where they would otherwise be washed away by water or broken apart. The patent includes illustrations.
Date: August 26, 1913
Creator: Andrews, Benjamin
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

Process of Separating Ores &c

Description: Patent for a process of separating oxid or carbonate metallic ores from a surrounding mineral through the use of a mixture of an oily liquid, water, and an alkali metal.
Date: November 12, 1912
Creator: Lockwood, Alfred Arthur
Partner: UNT Libraries Government Documents Department

Means for Ventilating and Expelling Water from Mines.

Description: Patent for a ventilation and water pumping system for mines, which pumps out water underground, removes foul air and gases, and keeps the mine supplied with fresh air through pressurizing the air in the mine.
Date: July 21, 1908
Creator: Durack, Patrick H.
Partner: UNT Libraries Government Documents Department

Pneumatic Jet for Conveyers

Description: Patent for a pneumatic jet that uses steam jets to provide power for various tasks such as distributing seed cotton or elevating coal. Illustrations included.
Date: September 21, 1909
Creator: Rice, Earley W.
Partner: UNT Libraries Government Documents Department

Post-Driver.

Description: Patent for a machine that drives posts and "can be placed on the running gear of a vehicle in such a manner that it can be readily adjusted to operate on posts at either side of the longitudinal axis of the vehicle" (lines 14-18). It can be easily adjusted and is simply constructed.
Date: April 18, 1893
Creator: Harris, Stephen G.
Partner: UNT Libraries Government Documents Department

Process of Leaching Copper Ores

Description: Patent for "a method of recovering copper by the electrolysis of copper solutions of any suitable kind, obtained by the lixiviation of the ore" (lines 9-12). The improvement in this method is that almost all the sulfuric acid and other leaching agents are used up prior to the copper going to the electrolysis tanks which increases the amount of copper recovered and the reduction of accumulated biproducts.
Date: October 22, 1918
Creator: Hahn, Albert W.
Partner: UNT Libraries Government Documents Department

Sulphur-Mining Apparatus.

Description: Patent for a thermal solvent based sulfur mining apparatus that is placed in a sulfur mining well. Utilizing thermodynamics, the apparatus has a new way to introduce air or steam into the various parts of the apparatus. It is designed with "simplicity and durability of construction" (lines 49-50).
Date: December 17, 1918
Creator: Carmichael, Robert E.
Partner: UNT Libraries Government Documents Department

Half-Car Unloader

Description: Patent for an improved and simplified mechanism of Half-Car Unloaders, which unloads earth materials such as coal and ore from a railroad car more easily and effectively by lifting up a train car, unloading its contents, and placing it back on the railroad track.
Date: February 9, 1915
Creator: Scardino, Mario P. & Scardino, Peter
Partner: UNT Libraries Government Documents Department
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