6 Matching Results

Search Results

Advanced search parameters have been applied.

Process for Refining and Purifying Oils.

Description: Patent for "processes for purifying oils, especially petroleum, and has for its object the removal of impurities and the neutralization of acids, and the reduction of the cost of refining oil by simplifying the process and reducing the length of time usually required for completing the purification" (lines 9-16).
Date: September 15, 1910
Creator: Lasher, David F.
Partner: UNT Libraries Government Documents Department

Float-Valve.

Description: Patent for a float valve not using slots and links, including illustrations.
Date: August 17, 1915
Creator: Garrott, John Collier
Partner: UNT Libraries Government Documents Department

Hoop Fastening for Buckets, &c.

Description: Patent for a new and improved fastener for barrels and buckets. This design "consists of a metal strap provided with side tongues and having its ends bent around the upper and lower hoops and the side tongues bent around the intermediate hoops. . . . to prevent them from dropping off when the vessel dries and shrinks" (lines 10-17).
Date: February 20, 1883
Creator: Phillips, Hiram B.
Partner: UNT Libraries Government Documents Department

Fruit-Drier.

Description: Patent for a fruit drier that includes "a series of hinged trays adapted to be folded into small compact form." (lines 11-13) including instructions and illustrations.
Date: March 24, 1914
Creator: Reid, William
Partner: UNT Libraries Government Documents Department

Railroad-Signal.

Description: Patent for a new Railroad-Signal invention. The Railroad-Signal functions as an improved device for alerting locomotive engineers that an upcoming bridge is broken, flooded, or on fire.
Date: February 25, 1913
Creator: Waddle, Calvin H. & Roberston, Everett C.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen