UNT Libraries Government Documents Department - 1,079 Matching Results

Search Results

Process of Heating Oil-Retorts and Apparatus Therefor.

Description: Patent for "a method of securing even heating of oil retorts and the like throughout their length" and "a new apparatus, particularly intended for the heating and cracking of oils to convert the same into pyrolytic products". The invention may be used for any oil converting retort, but the patent description relates to the production of gasoline.
Date: August 16, 1921
Creator: Alexander, Clive M.

Non-Refillable Bottle.

Description: Patent for improvements to non-refillable bottles to prevent tampering and/or re-filling of container with alternate substance. Item is designed to be used on any ordinary bottle.
Date: August 19, 1902
Creator: Allen, Edward

Car-Coupling.

Description: 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.

Game.

Description: Patent for a "a game of skill, rather than a game of chance" (lines 11-12), albeit with elements of a game of chance, in the style of a carnival game. The game consists of a motorized, revolving model airplane and a circular arrangement of nets (one for each player); the airplane drops candy into the winning player's net.
Date: August 9, 1921
Creator: Auffurth, Erwin, Jr. & Hjerpe, Erick

Nut-Lock.

Description: Patent for a nut-lock that holds the nut more securely in place than previous ones. Used primarily in railroad joints, but can be used in a variety of other applications.
Date: February 19, 1907
Creator: Baldwin, John H.

Friction-Clutch

Description: Patent for friction clutch (used in automobiles) that would allow better control over rotary parts, even when driving in reverse. The improved control is partially due to the inclusion of a tension device unique to this clutch.
Date: July 21, 1914
Creator: Barry, David Redmond

Valve-Operating Mechanism

Description: Patent for Valve Operating Mechanism that includes "new and useful improvements" (lines 5-6), and "has for its primary object to provide a simple and efficient means for operating a valve at a distance" (lines 10-12).
Date: September 10, 1918
Creator: Baurens, Jean Marie, Jr.

Refrigerating Machine.

Description: Patent for a refrigerating machine that works with a double jacketed brine cylinder with a self-contained expansion tank for the coolant. It is meant to provide cooling with small displacement of the cylinder, but with great circulation of the brine.
Date: December 31, 1918
Creator: Bell, Samuel R.
Back to Top of Screen