UNT Libraries Government Documents Department - 50 Matching Results

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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.
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent

Pumping Apparatus.

Description: Patent for pumping apparatus. This invention provides a means to elevate liquids by use of compressed air. It is specifically intended for deep oil-wells.
Date: August 25, 1903
Creator: Cain, Francis Charles & Herrenkind, Oscar Charles
Item Type: Refine your search to only Patent

Casing Spear

Description: Patent for casing spears. This invention is designed for pulling well tubes or casings that have broken off out of the well. Illustration included.
Date: August 25, 1908
Creator: Carroll, Monroe W. & Johnston, H. G.
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Trailer.

Description: Patent for trailers for attachment to trucks that is strong and compact and will not be distorted by the turning of the trailer relative to the truck.
Date: August 31, 1920
Creator: Feigelson, Alexander
Item Type: Refine your search to only Patent

Log-Loader.

Description: Patent for improvements in a machine that hauls logs and loads them on railways, based on a patent application submitted by the inventor previously (serial no. 563,242). A swinging crane loads and unloads the logs.
Date: August 11, 1896
Creator: Fletcher, William A.
Item Type: Refine your search to only Patent

Rope-Socket.

Description: Patent for a rope socket for use with well drilling tools that absorbs shocks and keeps the rope straight.
Date: August 2, 1910
Creator: Greeves, Walter Bruce & Black, Lee Jackson
Item Type: Refine your search to only Patent
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