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Distillation of Sulfur.

Description: Patent for a calorized iron coating that is resistant to corrosion during the sulfur distillation process. This coating prevents the destruction of retorts during the boiling of sulfur. The calorization process involves heating the material "with a mixture containing finely divided aluminum" (lines 56-57).
Date: December 6, 1921
Creator: Davis, Harold Simmons & Hamor, William Allen
Partner: UNT Libraries Government Documents Department

Rotary Boring-Drill.

Description: Patent for a rotary boring drill designed for drilling oil or water wells and tunneling. It features double-acting disc-shaped cutting members that cut both on the forward and backward edges, improving efficiency.
Date: January 31, 1922
Creator: Wadsworth, Frank L. O.
Partner: UNT Libraries Government Documents Department

Multiple-Stage Rotary Drill

Description: Patent for a multiple-stage rotary drill used for drilling oil, gas, or water wells and mines. This drill can increase the size of the hole, and it can better disintegrate the material around the hole.
Date: December 13, 1921
Creator: Wadsworth, Frank, L. O.
Partner: UNT Libraries Government Documents Department

Manufacture of Motor Fuel.

Description: Patent for making motor oil with or without cracking so that "at least 40 or 70 per cent of oil of as high boiling point as the initial oil can be, and is, recovered." (lines 29-31)
Date: February 21, 1922
Creator: Alexander, Clive M.
Partner: UNT Libraries Government Documents Department

Process and Apparatus for Distilling Petroleum.

Description: Patent for apparatus and improving practices associated with distillation of petroleum as undistilled residues, as well as petroleum in other forms.
Date: September 16, 1913
Creator: Van Dyke, John W.; Irish, William M.; Ellis, H. A. & Esterly, Edw. C.
Partner: UNT Libraries Government Documents Department

Rotary Boring Drill

Description: Patent for a rotary boring drill where the cutting members are optimized for action across various types of material while also allowing for more effective and efficient rotation of elements.
Date: March 7, 1922
Creator: Wadsworth, Frank L.O.
Partner: UNT Libraries Government Documents Department

Process and Apparatus for Melting Sulphur.

Description: Patent for a process and apparatus designed to melt solid sulphur at the lowest temperature possible to prevent the sulphur from overheating and becoming too viscous.
Date: July 4, 1922
Creator: Davis, Harold S. & Bacon, Raymond F.
Partner: UNT Libraries Government Documents Department

Solidifying Sulphur.

Description: Patent for an improved method of solidifying molten sulfur, in the hopes to make it easier to transport to its consumers
Date: unknown
Creator: Bacon, Raymond F.
Partner: UNT Libraries Government Documents Department

Rotary Boring Drill.

Description: Patent for improvement in Rotary Boring Drills,
Date: unknown
Creator: Wasworth, Frank L. O.
Partner: UNT Libraries Government Documents Department

Chain Pipe-Wrench.

Description: Patent for certain new and improvements in chain pipe wrenches, including instructions and illustrations.
Date: December 26, 1899
Creator: Bohner, Philip Henry
Partner: UNT Libraries Government Documents Department

Improvements in Manufacture of Organic Solvents

Description: Patent for new improvements to the manufacture of organic solvents. Specifically as it it relates to the treatment of acetone oils with catalysts for the purpose of converting the ketones contained within the acetone oil into alcohol.
Date: December 5, 1914
Creator: Hibbert, Harold
Partner: UNT Libraries Government Documents Department

Machine for Loading Cartridges.

Description: Patent for mechanizing and streamlining the steps involved in loading a cartridge.
Date: October 10, 1886
Creator: Franklin, Edward A.
Partner: UNT Libraries Government Documents Department

Manufacture of Gasolene.

Description: Patent for the manufacture of gasoline. The product is used as a fuel for internal combustion engines.
Date: March 9, 1915
Creator: Bacon, Raymond F.; Brooks, Benjamin T. & Clark, Clinton W.
Partner: UNT Libraries Government Documents Department

Portable Steam Engine

Description: Patent for a Portable Seam Engine
Date: August 24, 1880
Creator: Kriebel, Hosea K.
Partner: UNT Libraries Government Documents Department

Process of Making Amyl Acetate

Description: Patent for Process of Making Amyl Acetate
Date: September 5, 1916
Creator: Essex, Harry & Brooks, Benjamin T.
Partner: UNT Libraries Government Documents Department

Production of Chlorinated Hydrocarbons.

Description: Patent for the new and improved production of Chlorinated Hydrocarbons; "[t]his invention relates to the production of dichlorinated hydrocarbons of the ethylene series, and particularly to the production of mixtures of dichlorinated hydrocarbons containing dichlor-ethylene and dichlor-propylene from mixtures of ethylene hydrocarbons containing ethylene and propylene." (lines 13-20)
Date: December 10, 1915
Creator: Brooks, Benjamin T. & Smith, Dillon F.
Partner: UNT Libraries Government Documents Department

Paper Bag Machine.

Description: Patent for an improved paper bag machine, which rapidly converts continuously moving paper into bags.
Date: December 24, 1901
Creator: Tyson, F.
Partner: UNT Libraries Government Documents Department

Paper-Bag Machine.

Description: Patent for improvements in the paper-bag machine (related to author's previous Patent No. 689,441, December 24, 1901) for the purpose of improving the mechanism for forming the primary fold of the bag-bottom in the bag-folding process, including descriptions of the machinery, parts, and illustrations.
Date: May 5, 1903
Creator: Tyson, Frank
Partner: UNT Libraries Government Documents Department

Game Apparatus

Description: Patent for a game that is designed to impart instruction or information according to subject or topic desired.
Date: November 22, 1910
Creator: Prickett, Clinton E. & Cool, Roy D.
Partner: UNT Libraries Government Documents Department

Plant for Generating Electricity.

Description: Patent for a "simple, durable, compact, and reliable plant, house, or means operated by the force and energy of the wind without supervision or attention, and generating electricity and storing the same for use" (lines 10-14).
Date: August 20, 1895
Creator: Bowen, George R.
Partner: UNT Libraries Government Documents Department

Rubber Compund and Material for Use in Making the Same.

Description: Patent for a rubber compound, which is not damaged by oils and therefore usable in bearings. It features asphaltic bitumen rather than paraffin bitumen.
Date: December 31, 1907
Creator: Strain, Ebenezer W.
Partner: UNT Libraries Government Documents Department

Improvement in Processes of Reducing Asphaltum to a Liquid

Description: Patent for a new and useful process of reducing asphaltum to a liquid and the patent includes a list of solvents suitable for use in the process.
Date: March 20, 1877
Creator: Lee, Archibald K.
Partner: UNT Libraries Government Documents Department
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