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Method of Casting Chilled Valve-Seats

Description: Patent for making moldings of seats to be more consistent.
Date: March 11, 1919
Creator: Boykin, Burwell, Jr.
Partner: UNT Libraries Government Documents Department

Still.

Description: Patent for a still designed to refine crude petroleum and extract lighter elements, including illustrations.
Date: February 11, 1919
Creator: Gallsworthy, Benjamin
Partner: UNT Libraries Government Documents Department

Hydraulic-Drill

Description: Patent for an improved hydraulic drill to penetrate and bore holes into earth, clay and similar materials, including illustrations.
Date: August 11, 1903
Creator: Higgins, Pattillo
Partner: UNT Libraries Government Documents Department

Non-Refillable Bottle.

Description: Patent for a non-refillable bottle with a valve in the neck that opens to let the contents be poured out of the bottle but seals itself if liquid is poured back in the bottle.
Date: April 25, 1911
Creator: Sargent, William H.
Partner: UNT Libraries Government Documents Department

Detector for Wireless Telegraphy

Description: Patent for an improved detector for wireless telegraph machine through the use of minerals such as copper, sulfur, and zinc.
Date: November 9, 1915
Creator: Lorenz, Charles O.
Partner: UNT Libraries Government Documents Department

Valve

Description: Patent for a valve. Illustration included.
Date: August 17, 1909
Creator: Smith, Frederick C.
Partner: UNT Libraries Government Documents Department

Roundabout Swing

Description: Patent for a roundabout swing. Illustrations included.
Date: November 12, 1912
Creator: Jones, Oliver P.
Partner: UNT Libraries Government Documents Department

Comb.

Description: Patent for an electronic heating comb providing an electric heating element.
Date: November 10, 1920
Creator: Caneavri, Joseph Ping.
Partner: UNT Libraries Government Documents Department

Mechanical Movement

Description: Patent for "an object to provide a chain and sprocket movement with improved means for maintaining the chain in operatively taut condition and relation to the sprocket wheel" (lines 13-17), including illustrations.
Date: November 9, 1915
Creator: Stine, John
Partner: UNT Libraries Government Documents Department

Fishing Device.

Description: Patent for fishing gear belt/straps that can be worn by fisherman to support fishing pole that it "may be temporarily held in fishing position with the hands free" (lines 11-12). Includes illustration of device in use.
Date: September 12, 1916
Creator: Drinkard, Kenton
Partner: UNT Libraries Government Documents Department

Heater

Description: Patent for a new and useful heater design "particularly for heating the water in the circulating system of internal combustion engines, such as are used in automobiles" (lines 10-12). Illustrations are included.
Date: June 6, 1916
Creator: Smith, Frederick C.
Partner: UNT Libraries Government Documents Department

Feed-Trough.

Description: Patent for improvements in feed-troughs in which a controlled amount of feed can be placed in a feed box, and in which the latter will be fed as rapidly as consumed and the unconsumed feed will be protected. (Lines 11-14) Illustration in included.
Date: September 8, 1891
Creator: Webb, William James
Partner: UNT Libraries Government Documents Department

Protractor

Description: Patent for a protractor. Illustration included.
Date: July 11, 1905
Creator: Thomas, William L.
Partner: UNT Libraries Government Documents Department

Straightening-Machine

Description: Patent for an improved straightening machine to "straighten pipes, rails, and allied structures in an expeditious manner."
Date: May 12, 1914
Creator: Boykin, Burwell, Jr.
Partner: UNT Libraries Government Documents Department

Vapor Burner

Description: Patent for a vapor burner. Illustration included.
Date: July 11, 1905
Creator: Todd, Clarence C.
Partner: UNT Libraries Government Documents Department

Hen-Nest

Description: Patent for an improved hen nest. This nest prevents hens from roosting when the keeper chooses by the ability to turn the nests from horizontal to vertical.
Date: July 25, 1916
Creator: Hebert, Joseph
Partner: UNT Libraries Government Documents Department

Hoisting Hook.

Description: Patent for "certain new and useful Improvements in Hoisting-Hooks" (lines 5-6) including specifications and illustrations.
Date: June 22, 1915
Creator: Black, Lee J.
Partner: UNT Libraries Government Documents Department

Trailing Device for Tractors and the Like

Description: Patent for a device built to connect behind tractors and other farming vehicles. Development and use are within text; includes illustrations to demonstrate the object of the patent.
Date: November 27, 1917
Creator: Fiegelson, Alexander
Partner: UNT Libraries Government Documents Department

Oil-Tank.

Description: Patent for oil tank top to prevent destruction of inflammable substance in the tank by enabling the gas to escape in a simple and effective manner.
Date: June 27, 1916
Creator: Bradley, Benjamin Franklin
Partner: UNT Libraries Government Documents Department

Process of Making Artificial Fuel

Description: Patent for process of creating artificial fuel and the resulting product.
Date: March 11, 1902
Creator: Steiner, Robert
Partner: UNT Libraries Government Documents Department

Log-Carrier.

Description: Patent for a log-carrier with an improved construction from a previous patent (No. 539,380). Improvements include a change in "the angle of strain of the draft-chain as the lever approaches the horizontal position...when the load is elevated" (lines 34-37). It also maintains "a uniform leverage without the use of guide-rollers or other means" (lines 54-56), and balances the sliding tongue so that "the team is relieved of the weight thereof" (line 62).
Date: December 8, 1896
Creator: Carroll, Joseph Alexander
Partner: UNT Libraries Government Documents Department

Oil Trap

Description: Patent for improvements to floating oil traps. Floating oil traps are used to catch excess oil floating on top of refinery discharge canals. These improvements include increased flexibility, thus allowing the trap to move with the flow of the water.
Date: November 22, 1921
Creator: Jones, Robert P.
Partner: UNT Libraries Government Documents Department

Railroad-Tie.

Description: Patent for a railroad tie, which reduces jars to the train as it crosses over the ties.
Date: November 8, 1910
Creator: Green, Grant C.
Partner: UNT Libraries Government Documents Department

Heater.

Description: Patent for a heater powered by oil, which provides uniform heating of rooms, uses as little oil as possible to maintain heat, and does not get soot on objects in the room it is in.
Date: January 21, 1908
Creator: Callihan, Willie H.
Partner: UNT Libraries Government Documents Department
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