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Phonograph-Machine.

Description: Patent for a new phonograph machine with improvements of sound-box-transversing mechanisms and uniformity of movements, including illustrations.
Date: April 17, 1906
Creator: Dubinski, Benjamin.
Partner: UNT Libraries Government Documents Department

Tube-Expander

Description: Patent for a tube expander for setting boiler tubes in the holes in the tube-sheet, which provides simplicity and improvement of its construction.
Date: June 17, 1919
Creator: Walsh, Emmet
Partner: UNT Libraries Government Documents Department

Lawn-Rocker.

Description: Patent for a lawn rocker improvement that provides swing and is durable and inexpensive.
Date: July 17, 1906
Creator: Coffy, Ida May
Partner: UNT Libraries Government Documents Department

Improvement in Sand-Conveyers.

Description: Patent for a machine for "taking up and conveying sand into a suitable receptacle". Patent for breaking up sand and transferring it into a receptacle by means of circular cutters, conducting apron, inclined plate.
Date: July 17, 1877
Creator: Garcia, Rufino C.
Partner: UNT Libraries Government Documents Department

Transplanter

Description: Patent for a transplanter to move a rooted cotton plant and the soil around it to a different location. Illustrations included.
Date: September 17, 1912
Creator: Matthews, James T.
Partner: UNT Libraries Government Documents Department

Well-Boring Machine.

Description: Patent for improved mechanism of well-boring machine in which it “composed of as few parts as possible, which will effectively grip and rotate a drill-rod or pipe containing coupling and reducing - nipples, or composed of length or sections of varying diameters without impeding the end movement or deranging the central position of said drill-rod or pipe, and without delaying the progress of the machine, to adjust or change any part or parts thereof, also to improve the means for gripping the dr… more
Date: June 17, 1902
Creator: Woods, Frank J.
Partner: UNT Libraries Government Documents Department

Process of Treating Ores.

Description: Patent for "an improved method of reducing gold and silver ores and recovering their metals." (Lines 10-11) Includes instructions and illustrations.
Date: November 17, 1896
Creator: Barbour, Thomas P.
Partner: UNT Libraries Government Documents Department

Improvement in Bag-Fasteners.

Description: Patent for "a new and useful improvement in the manner of fastening bags and attaching labels or shipping directions" (lines 4-7) including illustrations.
Date: June 17, 1879
Creator: Terrell, Will
Partner: UNT Libraries Government Documents Department

Thill-Coupling.

Description: Patent for improvements in thill-couplings by using a combination of forward extension arms, having each near its forward end, circular shoulders, adapted to engage the ends of the shaft-iron; the spring-catch for holding the lever arm in locking position and, for retracting arm when the catch is released. Illustration is included.
Date: March 17, 1891
Creator: Bryan, William L.
Partner: UNT Libraries Government Documents Department

Lock for Automobiles

Description: Patent for Lock for Automobiles
Date: October 17, 1916
Creator: Harris, Robert M. & Wade, Milton V.
Partner: UNT Libraries Government Documents Department

Permutation-Lock.

Description: Patent for a device of a permutation lock. One of its objects is to improve the permutation mechanism thereof and to provide novel means whereby the combination of the lock may be changed.
Date: November 17, 1914
Creator: Meepos, Max
Partner: UNT Libraries Government Documents Department

Ore Concentrator

Description: Patent for a "machine for separating ores of precious metals, and particularly to that class of machines known as 'dry concentrators or separators,' used for separating fold ore by means of an air-blast over dry sand, gravel, quartz, etc." (lines 10-15). Illustrations and instructions are included.
Date: August 17, 1897
Creator: Waer, Luis M.
Partner: UNT Libraries Government Documents Department

Door Controlled Electric Switch

Description: Patent for an improved switch attachment that will allow a room, vault, or compartment to be kept lighted when door is open or closed, but may also be shut off when leaving the room.
Date: October 17, 1916
Creator: Kreter, Otto
Partner: UNT Libraries Government Documents Department

Baling-Press.

Description: Patent for certain new and useful improvements in baling presses.
Date: May 17, 1898
Creator: Holmgreen, Julius H.
Partner: UNT Libraries Government Documents Department

Separator for Secondary Batteries.

Description: Patent for separators, made of celluloid or similar material, designed to separate secondary or storage batteries in an efficient and affordable way.
Date: February 17, 1920
Creator: Luthy, Josesph O.
Partner: UNT Libraries Government Documents Department

Roller-Distributor.

Description: Patent for the invention of a roller distributor, or roller cam, that can "provide novel means whereby friction will be reduced" (lines 12-13) through the use of "a novel spring means being employed" (lines 13-14) in certain affordable, widely used vehicles.
Date: August 17, 1920
Creator: Lopez, Bruno
Partner: UNT Libraries Government Documents Department

Fire Box

Description: Patent for a fire box. Illustration included.
Date: January 17, 1905
Creator: Butcher, George W.
Partner: UNT Libraries Government Documents Department

Cage or Support for Well-Tubing

Description: Patent for a well tubing cage which provides support for well tubes so that a second pipe is not required. Illustrations included.
Date: January 17, 1911
Creator: Harpham, Harry C.
Partner: UNT Libraries Government Documents Department

Hoeing-Machine

Description: Patent for improvements to hoeing machines "as will cause the hoes to cultivate around the particular plant pointed out without it being necessary for the indicator to remain at rest while each plant is being hoed; second, to provide a pair of oscillating disks that cultivate before and behind the plant as they oscillate across the row" (lines 15-21).
Date: June 17, 1890
Creator: Hurd, Judson B.
Partner: UNT Libraries Government Documents Department

Electrical Testing Device.

Description: Patent for new and useful improvements in electrical testing devices. The invention provides references to innovative changes that allow for improved high-tension coil and armature testing.
Date: August 17, 1920
Creator: Bierbower, Richard C.
Partner: UNT Libraries Government Documents Department

Electrical Testing Device

Description: Patent for a device to test electrical circuits for faults which is cheaper to manufacture, easier to use, smaller and more durable.
Date: August 17, 1920
Creator: Bierbower, Richard C.
Partner: UNT Libraries Government Documents Department

Piston Ring

Description: Patent for improvements to piston rings to reduce leakage through piston grooves, rings, and joints.
Date: April 17, 1920
Creator: Olsen, Jens J. & Edwards, Lewis E.
Partner: UNT Libraries Government Documents Department

Ice Making and Blocking Machine.

Description: Patent for a new and improved ice machine. This design consists in "the combination of a non-conductive casing containing a freezing tank having water supply and discharge pipes, a water-tight diaphragm supported in said casing above the bottom of said tank having downwardly-tapered hollows in its upper surface and corresponding upwardly-tapered molds in its under surface, and a refrigerating medium contained within the said casing over said diaphragm and filling the hollows in the latter" (lin… more
Date: May 17, 1887
Creator: Knox, George F.
Partner: UNT Libraries Government Documents Department

Expanding Hub.

Description: Patent for certain new and useful improvements in metallic vehicle wheel hubs, including instructions and illustrations.
Date: May 17, 1898
Creator: Vollrath, Louis F.
Partner: UNT Libraries Government Documents Department
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