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Effect of Exposure Site on Weather Resistance of Porcelain Enamels Exposed for Three Years
From Introduction: "The present report describes the condition of all of the porcelain enamels after exposure for 3 yr."
Date:
April 10, 1962
Creator:
Moore, Dwight G. & Potter, Alan
Object Type:
Report
System:
The UNT Digital Library
Treatment of Mined Sulfur.
Patent for a method to improve the free burning properties of mined sulfur by carbonizing the oil and eliminating carbon.
Date:
April 19, 1921
Creator:
Bacon, Raymond Foss, 1880-1954.
Object Type:
Patent
System:
The Portal to Texas History
Treatment of Mined Sulfur.
Patent for heating sulfur under appropriate conditions in order to carbonized oil contained within, allowing stationary sulfur to burn without difficulty or interference from carbon.
Date:
April 19, 1921
Creator:
Bacon, Raymond Foss, 1880-1954.
Object Type:
Patent
System:
The Portal to Texas History
Methods of Preventing and Limiting Explosions in Coal Mines
Technical paper issued by the Bureau of Mines over safety prevention in coal mines. Preventing mine explosions is emphasized. Methods used in mine safety are discussed. This paper includes tables, illustrations, and photographs.
Date:
April 1915
Creator:
Rice, George S. & Jones, L. M.
Object Type:
Report
System:
The UNT Digital Library
Whiffletree.
Patent for an improvement in whiffletrees, made out of steel. It includes a description and illustration.
Date:
April 21, 1891
Creator:
Flatau, Louis S.
Object Type:
Patent
System:
The Portal to Texas History