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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

Heater.

Description: Patent for a heater adapted for use in an internal combustion engine for the purpose of assisting the vehicle to start in cold weather.
Date: May 27, 1919
Creator: Pirtle, Claiborne Clinton
Partner: UNT Libraries Government Documents Department

Heel-Attaching Means.

Description: Patent for a new means of using screws and plates to securely attach wooden heels to women's shoes, including illustrations.
Date: May 14, 1918
Creator: Dickerson, Harry P.
Partner: UNT Libraries Government Documents Department

Quick-Speed Steam-Engine.

Description: Patent for a simple, efficient, and high pressure quick speed steam-engine that maximizes power with the minimum amount of steam.
Date: May 15, 1894
Creator: Devoissaud, John P.
Partner: UNT Libraries Government Documents Department

Peanut Digger.

Description: Patent for new and useful improvements to a machine for harvesting or digging peanuts, including instructions and illustrations.
Date: May 15, 1917
Creator: Amos, Thomas E. & Abernathy, George J.
Partner: UNT Libraries Government Documents Department

Ratchet Pipe Cutter

Description: Patent for improvements to a ratchet pipe cutter, which includes an adjustment system to allow for pipes to "approximately quickly adjusted to different sizes of pipe and subsequently automatically moved toward the cutting roller"(lines 11-13).
Date: May 27, 1919
Creator: Hestand, Rue S.
Partner: UNT Libraries Government Documents Department

Poultry-Crate

Description: Patent for a poultry-crate with new and useful specifications for a "light but very durable constriction that can be very readily washed out when desired" (lines 27-29).
Date: May 11, 1915
Creator: White, William R.
Partner: UNT Libraries Government Documents Department

Draft-Equalizer

Description: Patent for "a draft-equalizer that the draft will be equally distributed among each of the animals attached thereto, so that one may travel in the furrow, if desired, and the remainder permitted to move over the unplowed ground" (lines 22-27).
Date: May 14, 1901
Creator: Anderson, Samuel Cornelious
Partner: UNT Libraries Government Documents Department

Fumigator.

Description: Patent for a fumigator for driving out flies or mosquitoes from rooms with kerosene gas.
Date: May 25, 1909
Creator: Hauck, Jacob
Partner: UNT Libraries Government Documents Department

Self-Closing Cock or Faucet.

Description: Patent for an improved self-closing cock or faucet that is made up of a pipe with an elongated chamber, a nozzle that is attached to the upper part of the pipe, an inner pipe within the chamber that has apertures in the upper part, a cylindrical valve in the inner pipe, a spring-actuated plunger-rod attached to the cylindrical valve, a handle attached to the plunger-rod, and a drop-valve that closes the lower end of the cylindrical valve.
Date: May 21, 1895
Creator: Murphy, George S.
Partner: UNT Libraries Government Documents Department

Improvement in Brick-Presses.

Description: Patent for a "new and useful improvement in brick-presses by which bricks may be quickly and cheaply pressed by hand power from clay taken direct from bank or mixer" ( Lines 1-3 )including instructions and illustration.
Date: May 14, 1878
Creator: Moore, Andrew A.
Partner: UNT Libraries Government Documents Department

Headlight Attachment

Description: Patent for headlight attachments designed to display "numbers and other signals in front of locomotive headlights" (lines 10-11). Illustrations included.
Date: May 28, 1907
Creator: McElvaney, Charles T.
Partner: UNT Libraries Government Documents Department
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