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Means for Ventilating Cars.

Description: Patent for a new and improved ventilator. This design is "first, to ventilate cars or other vehicles in such a manner that the air-currents may be formed within and directed to any part of the car and the admission of the air regulated in quantity; second, to change the direction of the air-currents formed within the car and regulate their escape" (lines 11-17). It consists in "the body of a vehicle having its walls provided with a suitable pipe-opening, of an air-receiving pipe provided with a… more
Date: January 6, 1891
Creator: Lazarus, Samuel
Partner: UNT Libraries Government Documents Department

Ladder.

Description: Patent for "a step-ladder adapted to travel upon a track and be moved to any desired place by the person using the ladder," (lines 16-18) including illustrations.
Date: November 3, 1891
Creator: Marshall, John Wesley; Bolton, R. B. & Marshall, W. H.
Partner: UNT Libraries Government Documents Department

Main Slide-Valve and Throttle-Valve for Steam-Engines.

Description: Patent for a simple main slide-valve and throttle-valve for steam-engines. The throttle valve is a flat plat and slides in a channel between the valve seat and the cylinder head. The twin engine cylinders are horizontally placed at the same height as the throttle valve. The main slide valve "affords a complete and superior valve mechanism for a quick speed steam engine" (lines 29-30).
Date: December 4, 1894
Creator: Devoissaud, John P.
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

Improvement in Air-Cooling Apparatus.

Description: Patent for "the construction and arrangement of a refrigerator for the purpose of cooling and maintaining a low and dry temperature, for preserving fresh meats and vegetables, and for cooling rooms for any purpose." (Lines 10-15) Includes instructions and illustrations.
Date: March 30, 1875
Creator: Hyatt, Frank A.
Partner: UNT Libraries Government Documents Department

Improvement in Bale-Ties.

Description: Patent for improvement in bale-ties, with description and illustrations.
Date: June 8, 1875
Creator: Chadwick, Edwin D.
Partner: UNT Libraries Government Documents Department

Improvement in Churns.

Description: Patent for the improved design of churns "in which the dasher-shaft is vertical and receives rotation by gearing at the top of the churn" (2nd para.), including illustrations.
Date: January 25, 1876
Creator: Davis, Henry T.
Partner: UNT Libraries Government Documents Department

Metal Cutter And Roller.

Description: Patent for a new and useful metal cutter and roller, including instructions and illustrations.
Date: October 4, 1898
Creator: Beaty, Gilbert M.
Partner: UNT Libraries Government Documents Department

Protective Carpet-Lining

Description: Patent for a lining to protect carpets from wear and maintain sanitation. Illustrations included.
Date: April 13, 1909
Creator: Koll, Louis H.
Partner: UNT Libraries Government Documents Department

Process of Mixing Ingredients

Description: Patent for a process of mixing ingredients. This invention is designed to mix dry state materials to a level moisture to be used for making shale brick. Illustration included.
Date: September 11, 1906
Creator: Nash, Alexander Q.
Partner: UNT Libraries Government Documents Department

Portable Folding Poultry-Coop

Description: Patent for "an improvement in portable folding poultry-coops, and more particularly to a'coop or crate used in the transportation of fowls to market by rail or boat" (lines 8-11)
Date: January 28, 1890
Creator: Yoakum, Robert
Partner: UNT Libraries Government Documents Department

Punching-Machine.

Description: Patent for a simple and durable punching-machine for metalworking that punching metal and feeds it forward. The invention is made up of " a carriage adapted to support the sheet to be punched, and provided with a toothed bar, a rock shaft carrying a pawl adapted to engage the said toothed bar to move the carriage forward, and a punch lever adapted to receive a swinging motion from the said shaft, the said lever being connected with the punch to move the latter downward to punch the sheet" (line… more
Date: August 14, 1894
Creator: Walsh, Richard
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

Mechanism for Hanging Car-Doors and The Like

Description: Patent for a mechanism for hanging car doors and similar objects. The tool reduces the amount of people needed to install a car door or similar object, providing a more efficient installation.
Date: December 24, 1918
Creator: Hartough, Edward W.
Partner: UNT Libraries Government Documents Department

Meat Slicer

Description: Patent for machine that cuts meat.
Date: February 6, 1917
Creator: Miller, Charles R.
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

Nut Lock

Description: Patent for a nut lock. Illustration included.
Date: April 19, 1910
Creator: Bradshaw, Richard A.
Partner: UNT Libraries Government Documents Department

Passenger Recorder

Description: Patent for a passenger recorder. This invention is designed to keep track of the flow of passengers entering on and off passenger vehicles. Illustration included.
Date: March 7, 1905
Creator: Jackson, Charles F.
Partner: UNT Libraries Government Documents Department

Trolley-Controller

Description: Patent for a means to "instantly pull down the trolley-pole when its trolley jumps the conductor-wire." (line 15-17)
Date: November 24, 1903
Creator: Leecraft, Walter, B.
Partner: UNT Libraries Government Documents Department

Oil Can Spout.

Description: Patent for new improvements to oil can where an attachment to the can is made and acts as both a stopper and a spout
Date: October 10, 1911
Creator: Melvin, Joe D.
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

Tie-Plate

Description: Patent for a tie plate that sticks firmly to the ties, keeps out moisture, and is lighter than other tie plates.
Date: July 16, 1912
Creator: Walton, Jay W. & Dayton, William H.
Partner: UNT Libraries Government Documents Department

Nut and Pipe Wrench.

Description: Patent for a nut and pipe wrench that has a detachable handle member which allows the shank to be reduced and extended.
Date: November 23, 1920
Creator: Hunter, Arthur G.
Partner: UNT Libraries Government Documents Department

Nut Lock.

Description: Patent for an improved nut lock that prevents nuts from loosening. The invention is a combined nut lock and washer with spring plate, including illustrations.
Date: January 14, 1919
Creator: Teague, Isaac E.
Partner: UNT Libraries Government Documents Department
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