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Lock-Joint Rail.

Description: Patent for a lockable joint for connecting segments of a railway track. The joint is resistant to breakages due to the passage of trains but allows for the replacement of worn track.
Date: May 5, 1914
Creator: Swindler, Edgar L.
Partner: UNT Libraries Government Documents Department

Variable-Speed-Transmission Gearing.

Description: Patent for an improved transmission gearing that provides "variable speed transmission gearing" (line 10) which allows for different forward and reverse speeds, including illustrations. The variable speed transmission gearing is designed primarily for automobiles and motor vehicles.
Date: October 5, 1915
Creator: Maschek, 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

Lock-Nut.

Description: Patent for a new and improved lock nut design, including illustrations, that efficiently and reliably "locks the nut against rotation upon the bolt" (lines 14-15).
Date: October 5, 1915
Creator: Mitchell, Thomas T.
Partner: UNT Libraries Government Documents Department

Wagon-Seat Spring.

Description: Patent for an elliptic seat spring on a wagon that is "arranged longitudinally on the front of the wagon-box, for the purpose of taking up the jar and jolt of wagons in passing over rough places in the roads" (lines 15-18). The springs will stay in place once installed.
Date: December 5, 1893
Creator: Ingle, Jacob Odem, Jr.
Partner: UNT Libraries Government Documents Department

Lifting-Jack.

Description: Patent for a simple and durable lifting jack for wagons that is easily operated and does not move the hoisting lever in the post.
Date: December 5, 1893
Creator: Ball, Charles W.
Partner: UNT Libraries Government Documents Department

Vehicle-Brake.

Description: Patent for vehicle-brake, with description and illustrations.
Date: March 5, 1885
Creator: McIntosh, John L.; Bacon, Edward Hamlin & Vail, Theron
Partner: UNT Libraries Government Documents Department

Machine for Building and Rerolling Wire Fences.

Description: Patent for "improvement in machines for building and rerolling wire fences" (lines 4-6), with instructions and illustrations.
Date: October 5, 1886
Creator: Edge, John S.
Partner: UNT Libraries Government Documents Department

Jar Fastener.

Description: Patent for a new and improved jar fastener. This design consists in "[t]he combination, with a fruit can or jar, having a continuous groove across its bottom and up its sides, of a U-shaped bolt resting in said groove, a cap-plate resting on the top of the jar and through which the legs of the bolt extend, and securing nuts turning on the ends of the bolt above the cap-plate" (lines 78-84).
Date: April 5, 1887
Creator: Dickey, Marion Flutcher
Partner: UNT Libraries Government Documents Department

Lantern-Top

Description: Patent for a lantern top that provides sufficient ventilation for the lamp or lantern. The arrangement of the lantern top provides sufficient communication between the interior of the lantern and the surrounding atmosphere to insure steady burning.
Date: October 5, 1920
Creator: Moore, Thomas Lindsay
Partner: UNT Libraries Government Documents Department

Knife-Sharpener.

Description: Patent for improvements in knife-sharpeners that can be clamped onto a table or similar object, including an illustration. The device has also been "adapted for use in connection with a pair of bits or cutters having convex cutting edges disposed in confronting relation, the bits or cutters being capable of adjustment to present new portions of the respective cutting edges for effective work as the occasion requires" (lines 17-23).
Date: February 5, 1918
Creator: Kirlin, Wiliam B.
Partner: UNT Libraries Government Documents Department

Level-Indicator.

Description: Patent for a new and improved level indicator, intended for use with airplanes and other flying machines to indicate the angle of ascent or descent, as well as when the machine is on a level keel. The level indicator is designed to have a water-tight casing and weatherproof joints and has brackets to secure it to the airplane.
Date: November 5, 1918
Creator: Westbrook, Homer S.
Partner: UNT Libraries Government Documents Department

Lawn Mower

Description: Patent for a lawn mower in which the means for adjusting the intermediate blade has been created so that a groove for a predetermined depth can be cut, and easy removal of the blade when it is desired to sharpen the same. Additionally, a ground-engaging roller is included to keep the machine at the same level so that the knife will cut into the ground at an even depth.
Date: December 5, 1919
Creator: Coniglio Carmelo
Partner: UNT Libraries Government Documents Department

Line-Type-Casting Machine

Description: Patent for a line type casting machine that focuses on improvements to the pot charging device and uses a type of float mechanism (as opposed to a thermostat) including instructions and illustrations.
Date: March 5, 1918
Creator: Wilmans, Lloyd I.
Partner: UNT Libraries Government Documents Department

Valve Construction

Description: Patent for improved valve construction which permits unobstructed passage from valves to intake and exhaust pipe in motor vehicles.
Date: February 5, 1918
Creator: Smith, Thomas Noah
Partner: UNT Libraries Government Documents Department

Vignetting Attachment for Multiple-Exposure Cameras.

Description: Patent for a multiple exposure camera attachment that allows multiple exposures to be made on a single plate or film, blending the exposures perfectly while avoiding harsh lines. The attachment is a telescopic tubular attachment with "a plurality of apertured light ray interrupting diaphragms" (lines 77-78).
Date: April 5, 1921
Creator: Moine, Selest E.
Partner: UNT Libraries Government Documents Department

Well-Drilling Tool.

Description: Patent for a bit that can be attached to a rotary tool for drilling wells. It features a means for using water to dislodge any accumulated mud from the tool.
Date: April 5, 1921
Creator: Clore, Franklin H.
Partner: UNT Libraries Government Documents Department

Magazine-Projectile

Description: Patent for a new type of projectile that includes an initial explosion followed by multiple other explosions from smaller bombs contained inside the larger projectile. The projectile is described as a "novel and improved instrument of destruction" (lines 10-11).
Date: November 5, 1918
Creator: Saladiner, Joseph M.
Partner: UNT Libraries Government Documents Department

Well Drilling Machine.

Description: Patent for a driving mechanism to reduce the numbers of shafts and other parts needed for well drilling. The invention allows for one main driving shaft to be used as the primary source for well drilling.
Date: February 5, 1918
Creator: Herdman, Adam H.
Partner: UNT Libraries Government Documents Department

Windmill.

Description: Patent for a new and improved windmill. This design "consists in the construction and novel arrangement of the radial arms of the wheel-frame and the vertical pivot-posts thereon, the sails or fans pivoted to said posts, the pivoted detents, and the pivoted governing-levers to which said detents are connected, said levers carrying adjustable weights" (lines 16-23).
Date: June 5, 1883
Creator: Witherspoon, Frank
Partner: UNT Libraries Government Documents Department

Water-Heater.

Description: Patent for a water heater for use in creating steam for oil and gas boilers, which heats faster than previous models.
Date: April 5, 1910
Creator: Hardie, Jeffie Watkins
Partner: UNT Libraries Government Documents Department

Windmill-Regulator

Description: Patent for "improvements in windmill-regulators of that class distinguished by the provision of a movable bucket connected to the regulating-cable of a windmill and communicating with the tank or reservoir supplied by the mill to cause the depression of the bucket for the purpose of throwing the mill out of gear or out of the wind. . .when the level of water in the tank has reached a predetermined point" (lines 8-18).
Date: March 5, 1901
Creator: Stein, John
Partner: UNT Libraries Government Documents Department

Well-Drilling Apparatus

Description: Patent for a well-drill swivel designed to improve the function of a well-drilling apparatus. The improved swivel is meant to create a better connection between rod and rope and prevent twisting of water-supply.
Date: June 5, 1906
Creator: Hall, Samuel N.
Partner: UNT Libraries Government Documents Department

Machine for Cracking Nuts

Description: Patent for a machine for cracking nuts of various types but especially pecans.
Date: November 5, 1912
Creator: McDonald, Charles Walton
Partner: UNT Libraries Government Documents Department
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