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Speed-Changing Gear.

Description: Patent for an automatic speed changing gear for trains.
Date: October 27, 1908
Creator: Mayo, William C. & Houlehan, John
Partner: UNT Libraries Government Documents Department

Saw-Filing Machine.

Description: Patent for a saw filing machine that keeps the teeth of saws properly aligned, while they are being sharpened.
Date: February 27, 1912
Creator: Haltom, Samuel
Partner: UNT Libraries Government Documents Department

Saw-Filing Machine.

Description: Patent for a saw fling machines for gin saws, which has less parts than previous models.
Date: April 27, 1909
Creator: Blain, F. A.
Partner: UNT Libraries Government Documents Department

Saw-Filing Machine.

Description: Patent for a saw filing machine for cotton gin saws.
Date: December 27, 1910
Creator: Seifert, Henry
Partner: UNT Libraries Government Documents Department

Roller Cotton-Compress.

Description: Patent for a new and useful roller cotton compress, including instructions and illustrations.
Date: March 27, 1900
Creator: Raborn, Louis
Partner: UNT Libraries Government Documents Department

Engine.

Description: Patent for a reciprocating steam-engine that both live steam and exhaust-steam may be utilized with a single piston to reciprocate it.
Date: August 27, 1901
Creator: Baker, Joseph Clark
Partner: UNT Libraries Government Documents Department

Mattress-Filling Machine.

Description: Patent for certain new and useful improvements in a combined extensible and multiple machine for making mattresses and the like, including instructions and illustrations.
Date: March 27, 1900
Creator: White, Charles Willis
Partner: UNT Libraries Government Documents Department

Baling-Press

Description: Patent for a power baling press.
Date: December 27, 1910
Creator: Diserens, Thomas H.
Partner: UNT Libraries Government Documents Department

Hay Stacking and Loading Device.

Description: Patent for "improvements in hay stacking and loading devices, the object of the invention being to provide means for erecting penannular stacks; and the same consists in the construction and arrangement of the parts, which includes a crane, its supporting means, and a hay-fork" (lines 10-16) including illustration.
Date: August 27, 1901
Creator: Nichols, Robert J.
Partner: UNT Libraries Government Documents Department

Cable-Power.

Description: Patent for improvements "to cable-power obtained by means of movable windlasses driven by steam or other motive power; and the object is to obtain a powerful draft for use in agricultural purposes, drawing heavy plows and reaping-machines, hauling heavy loads of ore or coal in mining, moving houses, and for drawing heavy loads of any description." (Lines 8-15) Illustration is included.
Date: August 27, 1901
Creator: Eastman, Clyde J.
Partner: UNT Libraries Government Documents Department

Burner.

Description: Patent for "the improvement of burners. The object of the present invention is to improve the construction of burners and to provide a simple, practical an comparatively inexpensive burner of strong and durable construction"
Date: June 27, 1916
Creator: Messerli, J.J. & Miller, Fred. F.
Partner: UNT Libraries Government Documents Department

Knob-Fastening.

Description: Patent for improved knob fastening where the door knob will be held in place without the use of screws for increased durability, including illustrations.
Date: January 27, 1914
Creator: Collins, Horace B.
Partner: UNT Libraries Government Documents Department

Machine For Compressing Baled Hay.

Description: Patent for a machine for compressing baled hay to a "greater density" (line 16). Can also be used to compress loose hay or other similar materials.
Date: February 27, 1917
Creator: Whitney, George E.
Partner: UNT Libraries Government Documents Department

Water Craft.

Description: Patent for a "bathing float equipped with propelling means" (lines 10-11) and a "depressible platform combined with ... a diving rudder" to allow the front part of the craft to dive underneath the water (lines 13-15).
Date: April 27, 1915
Creator: Caldwell, John C.
Partner: UNT Libraries Government Documents Department

Mud-Shredder for Vehicle-Wheels.

Description: Patent for a mud-shredding device that is attached to vehicle wheels in order to prevent accumulation of mud.
Date: January 27, 1914
Creator: Newsom, Henry G.
Partner: UNT Libraries Government Documents Department

Cotton Chopper

Description: Patent for cotton chopper
Date: November 27, 1915
Creator: Van, Benjamin
Partner: UNT Libraries Government Documents Department

Press

Description: A press adapted for packing cotton (line 13).
Date: June 27, 1916
Creator: Cameron, George W.
Partner: UNT Libraries Government Documents Department

Apparatus for Projecting Motion-Pictures.

Description: Patent for an improvement to motion picture projectors that lowers the operating speed, thus reducing the amount of film needed for movies, and eliminates flickers in the projection. This patent includes instructions and illustrations.
Date: November 27, 1917
Creator: Craig, Richard M.
Partner: UNT Libraries Government Documents Department

Speed-Recorder.

Description: Patent for recording instruments to use in connection with automobiles to record the speed of conveyance during the period of travel.
Date: July 27, 1920
Creator: Bowdish, Harry A.
Partner: UNT Libraries Government Documents Department

Rotary Engine

Description: Patent for rotary engine, with improvements to rotary engine fluid pressure for motors or engines which pump fluids (such as water motor, water pump, oil pump, ammonia pump or compressor).
Date: December 27, 1921
Creator: Johnson, Louis V.
Partner: UNT Libraries Government Documents Department
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