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Tire Casing Core

Description: Patent for a tire casing core designed to make the installation and removal of casings from tires easier to perform with a reduced risk of damaging either item.
Date: April 15, 1919
Creator: Hibbs, C. D.
Partner: UNT Libraries Government Documents Department

Piston Ring

Description: Patent for "new and useful improvements in Piston Rings (lines 5-6)."
Date: April 30, 1918
Creator: Byrant, Clarence R.
Partner: UNT Libraries Government Documents Department

Puncture-Proof Tire

Description: Patent for improved armor in tires so they do not puncture as quickly or as easily, including illustrations.
Date: April 1, 1913
Creator: Hibbs, Cassell De
Partner: UNT Libraries Government Documents Department

Checkrein Attachment

Description: Patent for checkrein attachment. This invention is intended for use with harnessed horses. Illustration included.
Date: April 12, 1904
Creator: Clary, John A.
Partner: UNT Libraries Government Documents Department

Conveyer.

Description: Patent for a conveyor for grain or gravel, which is made up of a series of trucks on rails which dump the materials out at set points and then right themselves.
Date: April 14, 1908
Creator: Schubert, George
Partner: UNT Libraries Government Documents Department

Piano.

Description: Patent for a piano with reversible boards below the keyboard and on the side of the piano. The board below the keyboard can be reversed to hide wear and the board on the side has foot pedals and a foot-rest for children or beginners to use which can be hidden inside the piano when not in use by reversing the board.
Date: April 9, 1907
Creator: Norcross, Levi Watson
Partner: UNT Libraries Government Documents Department

Rotary Engine.

Description: Patent for an improved rotary engine which overheats less, reduces the space between the piston and cylinder, and is easy to construct and operate.
Date: April 27, 1920
Creator: Jefferies, Charlie Q.
Partner: UNT Libraries Government Documents Department

Valve-Lifter

Description: Patent for an improved device that can be applied to a valve spring plate without losing grip.
Date: April 8, 1920
Creator: Chaney, Robert
Partner: UNT Libraries Government Documents Department

Window Shade and Curtain Hanger

Description: Patent for a window shade and curtain hanger. This invention is designed with a bracket attached to the frame in order to hold the pole for draping a shade or curtain. Illustration included.
Date: April 21, 1908
Creator: Gregson, Emily G. L.
Partner: UNT Libraries Government Documents Department

Railway-Crossing

Description: Patent for a railway crossing which will not sink in mud and will not be as loud as previously.
Date: April 22, 1902
Creator: Cooper, William M.
Partner: UNT Libraries Government Documents Department

Collector's Bill-Book.

Description: Patent for certain new and useful improvements in collectors' bill - books, including instructions and illustrations.
Date: April 18, 1899
Creator: Ward, George Cooper
Partner: UNT Libraries Government Documents Department

Wrench.

Description: Patent related to a wrench that is adjustable to fit any nut size. When secured on the nut, this wrench will firmly grip the nut until the handler loosens the wrench from the nut.
Date: April 9, 1912
Creator: Weatherly, George B.
Partner: UNT Libraries Government Documents Department

Lubricator for Eccentrics

Description: Patent for a lubricator for eccentrics. This invention is a means for supplying oil to a lubricating chamber as a method of regulating the flow of lubricant from said chamber. Illustration included.
Date: April 21, 1908
Creator: Helm, Clyve Dolphin
Partner: UNT Libraries Government Documents Department

Whiffletree.

Description: Patent for an improvement in whiffletrees, made out of steel. It includes a description and illustration.
Date: April 21, 1891
Creator: Flatau, Louis S.
Partner: UNT Libraries Government Documents Department
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