UNT Libraries Government Documents Department - 9 Matching Results

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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

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.
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent

Wrench.

Description: Patent for wrench related device "for locking the gripping element after it is applied to the pipe or other pipe (lines 14-15)" including instructions and illustration.
Date: October 19, 1915
Creator: Black, Lee J.
Item Type: Refine your search to only Patent

Electric-Current Relay

Description: Patent for Electric-Current Relay to allow capability of use with either a direct or alternating current. This is adapted for economical use in constant temperature apparatus. Further, this technology avoids the possibility of "sticking of relay movable contacts".
Date: July 19, 1921
Creator: Lorenz, Charles O.
Item Type: Refine your search to only Patent

Texas Attorney General Opinion: O-3036

Description: Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Salaries of deputy tax assessors of Jefferson County.
Date: March 19, 1941
Creator: Texas. Attorney-General's Office.
Item Type: Refine your search to only Text

Improvements in Burners

Description: Patent for improvements for burners. It is related explicitly to hydrocarbon burners. Its purpose is to keep the oil and steam separate as they leave the burner by keeping them in two separate streams.
Date: June 19, 1918
Creator: Trahan, Clair A
Item Type: Refine your search to only Patent
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