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Inductance Device for Wireless Electrical Signaling

Description: Patent for device to "receive messages transmitted in the form of dots, dashes or spoken words through space" (lines 16-17)
Date: March 30, 1915
Creator: Lorenz, Charley O.
Partner: UNT Libraries Government Documents Department

Lightning-Protecting System for Oil-Tanks.

Description: Patent for an improved system that is used for protecting oil tanks from getting struck by lightning and can get put on existing structures to ground them. The patent includes instructions and an illustration.
Date: March 14, 1916
Creator: Gunthorpe, Charles Henry
Partner: UNT Libraries Government Documents Department

Train-Pipe Coupling.

Description: Patent for a train pipe coupling that holds tightly together.
Date: March 28, 1911
Creator: Moss, Dexter W. & Olschner, Clarence E.
Partner: UNT Libraries Government Documents Department

Concrete Step Mold

Description: Patent for concrete that when used multiple times will produce a flight of stairs.
Date: March 20, 1917
Creator: Baldwin, Thomas H.
Partner: UNT Libraries Government Documents Department

Drying-Machine

Description: Patent for a drying machine for stone, clay and related substances that will not burn the materials.
Date: March 4, 1913
Creator: Black, Lee J.
Partner: UNT Libraries Government Documents Department

Process of Catalyzing Oil and Apparatus Therefor.

Description: Patent for improvements to oil boiling & processing to preserve its hydrocarbon properties by converting high-boiling oils to low-boiling oils using a specific apparatus for vaporization and a catalyst reheating device, such as a chamber furnace.
Date: March 14, 1916
Creator: Alexander, Clive M. & Taber Jr., George H.
Partner: UNT Libraries Government Documents Department

Cistern.

Description: Patent for a rain cistern, which can have oil put in it to prevent rust and sends out dirt from the cistern if it overflows.
Date: March 8, 1910
Creator: Fischer, Christian
Partner: UNT Libraries Government Documents Department

Method of Casting Chilled Valve-Seats

Description: Patent for making moldings of seats to be more consistent.
Date: March 11, 1919
Creator: Boykin, Burwell, Jr.
Partner: UNT Libraries Government Documents Department

Automatic Fuel-Changing Valve.

Description: Patent for Automatic Fuel Changing Valve. The purpose of the invention is to provide a mechanism that switches to another gas supply when the one which is feeding the system runs low.
Date: March 26, 1918
Creator: Connelly, John S.
Partner: UNT Libraries Government Documents Department

Combined Kitchen-Cabinet and Refrigerator

Description: Patent for the combination design of kitchen cabinets that include a refrigerator component.
Date: March 4, 1919
Creator: Polk, Thomas J.
Partner: UNT Libraries Government Documents Department
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