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Combination-Lock.

Description: Patent for improvement upon a combination-lock.
Date: May 1, 1888
Creator: Bergman, John
Partner: UNT Libraries Government Documents Department

Improvement in Addressing-Machines.

Description: Patent for a new and improved design of addressing-machine which is intended for use in newspaper offices and business purposes in general. It includes illustrations.
Date: December 17, 1878
Creator: Piner, John
Partner: UNT Libraries Government Documents Department

Trademark Certificate: Helen Corbitt's

Description: Certificate registering a trade-mark for "Helen Corbitt's" written in stylized text, in force from 1951-1971. It includes the official certificate and the application text explaining how the mark has been used.
Date: May 29, 1951
Creator: Corbitt, Helen
Partner: University of Dallas

Wrench.

Description: Patent for wrench related device "for locking the gripping element after it is applied to the pipe or other pipe (lines 14-15)" including instructions and illustration.
Date: October 19, 1915
Creator: Black, Lee J.
Partner: UNT Libraries Government Documents Department

Type Writing Machine

Description: Patent for type-writing machine used to center heading on a document in typewriting machines. With the success of the invention, the carriage-spacing key is depressed once for each letter in the word being centered.
Date: August 1, 1916
Creator: Barker, Benjamin F.
Partner: UNT Libraries Government Documents Department

Internal Combustion Engine.

Description: Patent for a simplified internal combustion engine that is lighter and more efficient than previous models. It also features detachable and removable parts that will decrease time and cost of repairs, includes illustrations.
Date: July 29, 1919
Creator: Higbee, Charlie D.
Partner: UNT Libraries Government Documents Department

Windmill.

Description: Patent for an improved windmill which allows for the conversion of "a rotating motion into a reciprocatory motion" (line 15-16) which allows the windmill to be "manufactured and sold at a comparatively low rate" (line 41-43).
Date: February 8, 1921
Creator: Cryer, Henry M.
Partner: UNT Libraries Government Documents Department

Windmill

Description: Patent for a windmill. It turns creating rotary motion, caused by the wind, which is used as a pumping power source.
Date: November 2, 1905
Creator: Doty, David
Partner: UNT Libraries Government Documents Department

Machine for Forming Wire Articles.

Description: Patent for an improved machine that makes wire coils, springs, pins, and similar wire formations. "The invention has for its objects to provide a simple, cheap and durable device or machine for the purpose named which can be easily operated and capable of turning out a large number of the articles with the expenditure of the minimum amount of time and labor" (lines 22-28).
Date: February 21, 1893
Creator: Porter, Louis H.
Partner: UNT Libraries Government Documents Department

Windmill.

Description: Patent for an improved wind wheel that has "every other blade...has a right angled extension or cup to catch the wind, the blades thus formed being set in the hub and rim of the wheel so as to have said right angled portions where they will receive the full force of the wind" (lines 17-22). A ring supports the angled portions of the windmill blades.
Date: March 7, 1893
Creator: Bowman, Charles R.
Partner: UNT Libraries Government Documents Department

Machine for Driving Horses.

Description: Patent for an improved, simple, and efficient horse-whipping or driving machine that is meant to whip horses that are connected to machines that are powered by horses, such as thrashers, fans, and bark-mills. "The invention comprises a whip-carrying lever pivotally mounted on one end of the sweep-lever of a draft horse power, and means for moving said lever so that the whip will be caused to strike the draft horses" (lines 18-22).
Date: June 27, 1893
Creator: Williams, Samuel
Partner: UNT Libraries Government Documents Department

Wind-Wheel.

Description: Patent for a wind-wheel that "needs no guiding vane or tail, but shall turn in the same direction at all times regardless of the direction of the wind" (lines 8-11). It is a horizontal wind wheel that rotates on a vertical axis. The blades automatically opens on one side and close on the opposite side.
Date: September 26, 1893
Creator: Walker, James C.
Partner: UNT Libraries Government Documents Department

Water-Power.

Description: Patent for a water-power. It consists of a dam built halfway across a stream, a power-house with its upper end closed and inclined towards the upstream, gated inlet openings on the side of the power-house, gates that control the inlet openings, and a water-wheel on the stream side of the power-house.
Date: December 4, 1894
Creator: Vernon, William E.
Partner: UNT Libraries Government Documents Department

Lubricator.

Description: Patent for an efficient lubricator apparatus that is made up of a reservoir for lubricating oil, a discharge pipe, another pipe that feeds water or condensed steam into the reservoir to displace the oil, a sediment container that has a valved discharge outlet on the bottom, a filter that cleans oil from the discharge pipe, a pipe that lets fluid into the sediment receptacle, and a steam pipe above the oil reservoir.
Date: July 16, 1895
Creator: Herold, Charles
Partner: UNT Libraries Government Documents Department

Type-Writing Machine.

Description: Patent for a type-writing machine that allows the spacing mechanism to operate in conjunction with other parts so that the paper-carriage releases and return the paper automatically at the end of the line. The springs automatically release and return to action with each release.
Date: April 16, 1895
Creator: Butler, George H.
Partner: UNT Libraries Government Documents Department

Tube-Cutter.

Description: Patent for a simple and inexpensive tube-cutter meant to cut boiler flues or tubes in order to remove or replace the tubes or flues. The tube cutter doesn't spread the tube and allows the tubes to be withdrawn through the holes after cutting them.
Date: July 2, 1895
Creator: Fitzpatrick, John James Kelsoe
Partner: UNT Libraries Government Documents Department

Valve.

Description: Patent for a valve made up of a shell with a water inlet and a water outlet, a perforation for the valve stem, a gable-shaped seat made from hard metal that is fitted into the shell, a valve stem that works up and down the shell and with a shoulder, a valve with a hollow neck, a soft contact ring between the gable-shaped seat and the face of the valve, a guide and cap that fits in the shell, a stem nut, and a stuffing-box.
Date: July 23, 1895
Creator: Speer, George F.
Partner: UNT Libraries Government Documents Department

Lantern.

Description: Patent for an inexpensive, simple, and efficient lantern meant to be used outside in high winds, and can carry a candle or oil light.
Date: August 20, 1895
Creator: Seys, Cornelius D.
Partner: UNT Libraries Government Documents Department

Valve-Gear.

Description: Patent for a valve-gear that uses a single eccentric, "together with devices by which such eccentric may be shifted upon the shaft and locked in its various positions to effect either a reversal of the engine or a stoppage thereof with a full head of steam on, and to run the engine in one or the other direction, as may be desired" (lines 10-15).
Date: September 24, 1895
Creator: Hill, Millard F. & Easley, Clifton W.
Partner: UNT Libraries Government Documents Department

Index

Description: Patent for "a simple and compact index in which the available space will be utilized as perfectly as possible". (lines 10-13) including instructions and illustrations.
Date: May 22, 1900
Creator: Hausinger, Henry August
Partner: UNT Libraries Government Documents Department

Interest Calculator

Description: Patent for an adjustable calendar for calculating interest between two dates, including illustrations.
Date: May 6, 1913
Creator: Moody, Jason B.
Partner: UNT Libraries Government Documents Department

Index and Trial-Balance.

Description: Patent for improvement in indexes and trial-balances by using removable spring-strips to hold all the papers together in one place and can be easily remove when needed. Illustration is included.
Date: April 2, 1901
Creator: Templeton, Allison
Partner: UNT Libraries Government Documents Department

Vending-Machine.

Description: Patent for improvements in the construction of coin-operated vending machines which automatically lock when coins are not inserted. This device is designed to dispense objects of many shapes and sizes. Illustrations included.
Date: January 6, 1920
Creator: Ogden, Carlton N.
Partner: UNT Libraries Government Documents Department

Vending-Machine

Description: Patent for a coin and check operated vending machine. Illustrations included.
Date: January 28, 1913
Creator: Vandagriff, James V.
Partner: UNT Libraries Government Documents Department
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