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Air-Valve Cage for Air-Brake Pumps

Description: Patent for an air valve cage for air brake pumps which reduces the wear on the air brake pump and substantially reduces the maintenance costs of the system.
Date: February 16, 1909
Creator: Mattingly, James
Partner: UNT Libraries Government Documents Department

Annuciator

Description: Patent for an annunciator. "This invention is designed for use in connection with a complete traction system" (lines 13-14). The design drives instruments via a train air system so that air pressure is constantly maintained. Illustrations included.
Date: February 18, 1908
Creator: Mayo, William C. & Houlehan, John
Partner: UNT Libraries Government Documents Department

Apparatus for Cleaning Bottoms of Ships.

Description: Patent for apparatus for cleaning the bottom of ships "to provide a simple and practical apparatus for removing barnacles, seaweed, mud, and other adhesions from the sides and bottom of a ship" (line 10).
Date: February 11, 1902
Creator: Culpepper, Robert Smith
Partner: UNT Libraries Government Documents Department

Aparejo

Description: Patent for more efficient and durable pack-saddle (aparejo) used by United States Army. Casing involves hollow boot-sticks and rubber-encased steel, with better fitting to prevent fatigue of animal.
Date: February 11, 1902
Creator: Keller, John & Titsworth, Richard
Partner: UNT Libraries Government Documents Department

Combined Turning and Leveling Plow.

Description: Patent for an improved combined turning and leveling plow.
Date: February 9, 1901
Creator: Collins, Frank
Partner: UNT Libraries Government Documents Department

Bank-Ledger

Description: Patent for a Bank-Ledger
Date: February 10, 1903
Creator: Ford, Earle
Partner: UNT Libraries Government Documents Department

Baling-Press.

Description: Patent for certain new and useful improvements in baling presses, including instructions and illustrations.
Date: February 27, 1900
Creator: Byars, Edgar
Partner: UNT Libraries Government Documents Department

Corn-Thinner.

Description: Patent for improvements in corn-thinners for removing excess stalks in the field by constructing the “upper portion’s blade flat to present straight side cutting edges, and having the lower portion curved transversely to present to a lower semicircular cutting edge.” (Lines 53-56.) With this design, the operator would not have to stoop over, making the thinning operation easier. Illustration is included.
Date: February 17, 1903
Creator: Horn, Henry G.
Partner: UNT Libraries Government Documents Department

Air-Brake, Lighting, and Signaling System for Railway-Trains

Description: Patent for an electrical system which provides air brake, lighting, and signaling mechanisms for trains. Illustrations included.
Date: February 18, 1908
Creator: Mayo, William C. & Houlehan, John
Partner: UNT Libraries Government Documents Department

Advertising Street Car Sign

Description: Patent for an advertisement sign located on the top of street cars. Illustration included.
Date: February 11, 1908
Creator: King, Alphonse
Partner: UNT Libraries Government Documents Department
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