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Utilization of Aluminum-Chlorid Residues.
Patent for "new and useful Improvements in the Utilization of Aluminum Chlorid Residues" (lines 6-7) including instructions and illustrations.
Date:
February 24, 1920
Creator:
Abbott, Lyle Stockton
Object Type:
Patent
System:
The Portal to Texas History
Mining and Preparing Domestic Graphite for Crucible Use
From Prefactory Statement: "In this bulletin are presented the results obtained in the first two phases of the work outlined above. The bulletin is in two parts. The first part describes the methods of mining and milling used, suggests a standard method of sampling finished graphite, and describes a rapid and convenient method of analysis developed at the Pittsburgh station of the Bureau of Mines, to which has been assigned the analytical and microscopic work. The second part describes experiments on the concentration and milling of graphite, which were made at the Salt Lake City, Utah, station."
Date:
1920
Creator:
Dub, George D. & Moses, Frederick G.
Object Type:
Report
System:
The UNT Digital Library
Approved Explosion-Proof Coal-Cutting Equipment
Report discussing description of equipment tested to prevent explosions when using coal-cutting explosions and provides explanation of fire damp protection theory.
Date:
1920
Creator:
Ilsley, L. C. & Gleim, E. J.
Object Type:
Report
System:
The UNT Digital Library