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Oil Well Screen.

Patent for a new oil-well screen that prevents sand from entering an oil or water well but will allow oil and water through.

Date: February 14, 1922

Creator: Dobson, John A.

Partner: UNT Libraries Government Documents Department

Can Opener

Patent for a can opener which cuts cleanly and rapidly around the outside wall of the can, so as to avoid jagged edges.

Date: February 14, 1922

Creator: Minor, Robert B.

Partner: UNT Libraries Government Documents Department

Gas Stove.

Patent for a gas stove that is "simple, inexpensive, durable and reliable" (lines 9-10). Gas will be distributed more evenly throughout the stove and better sealing prevents gas odors from escaping.

Date: February 14, 1922

Creator: Wood, Thomas E.

Partner: UNT Libraries Government Documents Department

Patent for a dip pen or nib pen, with innovations concentrating on the tip (nib). The tip is moderately sharp to glide over paper, bent for smooth writing and ink conservation, and stiff "to enable it to be used in making carbon copies" (lines 26-27).

Date: February 14, 1922

Creator: Block, Henry, 1875-1939

Partner: UNT Libraries Government Documents Department

Drill Bit

Patent for improvements in drill bits, particularly in the application used in drilling in soft formations, such as clay, gumbo, or similar material. The purpose of the invention is to provide a way to prevent the sticking of material to the drill and drill collar while the drilling operation is being performed.

Date: February 14, 1922

Creator: Childs, William L.

Partner: UNT Libraries Government Documents Department

Pneumatic Disk Gin.

Patent for an improved version of a pneumatic disk gin. It has been designed for "ginning fibrous material, such as seed cotton" (lines 13-14) and improves the separation of the cotton and the seeds with the use of its perforated disks.

Date: February 14, 1922

Creator: Garner, James C.

Partner: UNT Libraries Government Documents Department