UNT Libraries Government Documents Department - 23 Matching Results

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Process of Catalyzing Oil and Apparatus Therefor.

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.

Item Type: Patent

Car-Coupling.

Patent for improved car couplings "of the Janney type, capable of readily coupling on short curved, and adapted to be either coupled or uncoupled without going between cars. A further object of the invention is to provide means whereby the parts may be readily set for automatic coupling, or to prevent coupling." (Lines 13-20) Includes instructions and illustrations.

Date: March 19, 1895

Creator: Armstrong, James P.

Item Type: Patent

Concrete Step Mold

Patent for concrete that when used multiple times will produce a flight of stairs.

Date: March 20, 1917

Creator: Baldwin, Thomas H.

Item Type: Patent

Drying-Machine

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.

Item Type: Patent

Hydraulic Swivel

Patent for a new and useful improvement in hydraulic swivels by simplifying the structure and making the device more efficient and reliable.

Date: March 7, 1922

Creator: Black, Lee J.

Item Type: Patent

Hydraulic Swivel.

Patent for a hydraulic swivel valve, to allow water to flow to the drill stem for purposes of cooling and lubrication.

Date: March 22, 1921

Creator: Black, Lee J.

Item Type: Patent

Root Crop Harvester

Patent for a root crop harvester. This invention is designed for the harvesting of peanuts, potatoes, sugar beets, turnips, onions, etc. Illustration included.

Date: March 2, 1909

Creator: Bourland, Joseph M.

Item Type: Patent

Method of Casting Chilled Valve-Seats

Patent for making moldings of seats to be more consistent.

Date: March 11, 1919

Creator: Boykin, Burwell, Jr.

Item Type: Patent

Automatic Fuel-Changing Valve.

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.

Item Type: Patent

Grain-Car.

Patent for a grain car, with improved methods or loading and unloading the grain, as well as an easy method for converting the car to haul regular cargo.

Date: March 15, 1921

Creator: Dukes, Sandy

Item Type: Patent

Cistern.

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

Item Type: Patent

Lightning-Protecting System for Oil-Tanks.

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

Item Type: Patent

Bandage.

Patent for bandage that prevents and/or reduces the occurrence of "double chin."

Date: March 20, 1906

Creator: Hardee, Virginia E.

Item Type: Patent

Still and Still-Setting

Patent for steam still improvements using an open steel frame for support of the still. This steel frame allows for heating by methods other then steam and easy access to the bottom plates of the still to see if there is leakage.

Date: March 30, 1920

Creator: Henderson, Herbert

Item Type: Patent