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Locking Device for Car-Doors.

Description: Patent for a locking device for a sliding train car capable of locking automatically upon close, including illustrations.
Date: May 9, 1916
Creator: Tierney, Henry J.
Partner: UNT Libraries Government Documents Department

Latch.

Description: Patent for a latch for swinging doors, which can be operated from either side of the door.
Date: May 18, 1909
Creator: Lewis, Oliver
Partner: UNT Libraries Government Documents Department

Linotype Distributer

Description: Patent for a linotype distributer. Illustration included.
Date: May 10, 1904
Creator: Cooney, John Macauley & Totten, Harry Lee
Partner: UNT Libraries Government Documents Department

Improvement in Double-Bitted Drills.

Description: Patent for "an easy mode of straightening wells while drilling them through rock or earth, and also for enlarging the same into a cistern when it is desired to keep on hand a large supply of water." (Lines 8-13) Includes instructions and illustrations.
Date: May 30, 1876
Creator: Yarbrough, William H.
Partner: UNT Libraries Government Documents Department

Improvement in Excavators.

Description: Patent for improvement in earth excavators combining a plow, rotating cylinder, and helical plate.
Date: May 6, 1873
Creator: Smith, Amroy B.
Partner: UNT Libraries Government Documents Department

Mechanical Motor.

Description: Patent for an improved and efficient "in motors adapted especially for domestic use, its object being to provide a cheap, compact, durable, and efficient automatic motive mechanism which may be utilized for drivers various household apparatus" including instructions and illustration.
Date: May 25, 1880
Creator: Miller, Noah J.
Partner: UNT Libraries Government Documents Department

Steam-Engine Governor.

Description: Patent for a governor meant to be used with a double cylinder single-action steam engine of Devoissaud's invention. It has "a plate-like governor valve having suitable steam ports, is introduced within a vertical channel formed in the single head plat that closes one end of two steam cylinders, which are located in the same vertical plane on a bed-plate; said valve being directly attached to, and controlled by the governor, for the alternate introduction of steam directly through the cylinder h… more
Date: May 15, 1894
Creator: Devoissaud, John P.
Partner: UNT Libraries Government Documents Department

Trolly Wheel and Harp.

Description: Patent for trolley wheels, where "the transmission of the current through the wheel to the harp is maintained at the maximum and the necessary wear of the relatively movable parts reduced to a minimum" (lines 11-15).
Date: May 7, 1912
Creator: Neighbour, William W.
Partner: UNT Libraries Government Documents Department

Journal-Box.

Description: Patent for a journal or wheel axle box that allows the wheel to rotate freely and reduces friction stopping the boxes from becoming hot.
Date: May 7, 1907
Creator: Neighbor, William W.
Partner: UNT Libraries Government Documents Department

Press-Box for Horizontal Oil-Presses.

Description: Patent for a press-box for horizontal oil-presses that produces "a cake of even thickness and density, and without strain on any part of the box" (lines 11-13) that has "a box fitted with a strainer that will be more lasting, which can be cleaned without removing it form the box, or the box from the press, and to which the cake will not adhere; [and] to provide a box fitted with effective and economical means of raising the cake out of the box after it is pressed" (lines 13-20). This box is mad… more
Date: May 7, 1895
Creator: Lelardoux, Pierre
Partner: UNT Libraries Government Documents Department

Trolley-Harp.

Description: Patent for improvements to the efficiency of trolley harps by changing how the currents that power "overhead type electric car systems" (lines 13-14) are conducted.
Date: May 15, 1917
Creator: Carmack, James H.
Partner: UNT Libraries Government Documents Department

Washing-Machine

Description: Patent for a washing machine that uses jets of boiling water and steam to clean clothes.
Date: May 28, 1912
Creator: Dickey, John S.
Partner: UNT Libraries Government Documents Department

Ant-Trap

Description: Patent for an ant trap "to provide a simple, inexpensive, and efficient one of great strength and durability adapted to be place over an ant-hill and capable of capturing the ant in the hill as they leave the same and also of catching the outside ants as they attempt to enter the hill. (line 11-17)
Date: May 26, 1903
Creator: Finley, William Frederick
Partner: UNT Libraries Government Documents Department

Surgical Applicator

Description: Patent for a surgical applicator "which may be employed for the application of a suitable medicament to the membranous lining of the urethral canal of the phallus.(line 10-14).
Date: May 26, 1903
Creator: Ridgeway, Elzie L. & Bailey, Dan H.
Partner: UNT Libraries Government Documents Department

Grave Guard.

Description: Patent for a new and improved grave guard. This design allows for a grave guard that receives fence posts, headstones, and water for neighboring plants, which compiles these effects from various other devices.
Date: May 16, 1882
Creator: Gent, Alfred
Partner: UNT Libraries Government Documents Department

Facing-Blocks

Description: Patent for facing blocks used as a veneer or facing with wood or metal framework. In using "uncemented tongue and groove" joints, the facing blocks allows for adjustment due to settling of the frame and features durable and efficient construction.
Date: May 25, 1915
Creator: Neimeyer, Frederich George
Partner: UNT Libraries Government Documents Department

Reicing Cars.

Description: Patent for an ice storage receptacle and crushing apparatus which supplies the refrigerator cars on a train with fresh ice.
Date: May 18, 1915
Creator: Tobin, Patrick H.
Partner: UNT Libraries Government Documents Department

Relay.

Description: Patent for an electric relay "which is normally actuated by weak currents, and adapted when abnormally energized by heavier currents to shift the local current from one connection to another in order to prevent the relay armature from sticking" (lines 10-15).
Date: May 18, 1909
Creator: Rice, Hugh C.
Partner: UNT Libraries Government Documents Department

Sliding Gate.

Description: Patent for a new and improved sliding gate. This design "consists in the combination of the two posts between which the gate moves back and forth, the roller placed between them and upon which the gate moves, the gate provided with an extension on its rear edge, a top rail, and pulleys on the top rail, a post provided with rollers, and through which the extension passes, operating-cords provided with stops, and the posts provided with guides for the ropes to pass through" (lines 13-22).
Date: May 12, 1885
Creator: Graves, William W.
Partner: UNT Libraries Government Documents Department

Wick Trimmer.

Description: Patent for a new and improved wick trimmer. This design "is to provide a lamp-wick trimmer with adjustable guides that will afford means to retain the implement in correct position for use on lamp-wick tubes of different sizes, and furthermore to furnish the wick-trimmer with blades that will shear the wick from each side edge toward the center simultaneously" (lines 7-14).
Date: May 31, 1892
Creator: Andrews, Daniel L.
Partner: UNT Libraries Government Documents Department

Flue-Beader.

Description: Patent for a tool that allows a boiler flue to rotate while not letting any steam out of the flue. This allows for the projecting end of the flue to turn without damaging itself and makes taking the flue apart easier for workmen.
Date: May 4, 1897
Creator: Hutchison, Wilson F.
Partner: UNT Libraries Government Documents Department

Fish and Game Trap.

Description: Patent for a design for improvements of fish and game traps, including illustrations.
Date: May 31, 1892
Creator: Bolling, Allen G.
Partner: UNT Libraries Government Documents Department

Fan for Sewing-Machines

Description: Patent for a fan for sewing machines. Illustrations included.
Date: May 21, 1912
Creator: Ownby, Albert W.
Partner: UNT Libraries Government Documents Department
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