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 Country: Germany
 Decade: 1920-1929
 Collection: Technical Report Archive and Image Library
Low-Temperature Carbonization of Coal

Low-Temperature Carbonization of Coal

Date: 1926
Creator: Fieldner, Arno Carl
Description: Technical paper issued by the Bureau of Mines over studies on low-temperature carbonization of coal. Methods and equipment used during the studies are discussed. This paper includes tables, illustrations, and photographs.
Contributing Partner: UNT Libraries Government Documents Department
The 300 H.P. Benz Aircraft Engine

The 300 H.P. Benz Aircraft Engine

Date: January 1921
Creator: Heller, A.
Description: This report provides a description of the Benz 300 H.P. aircraft engine containing 12 cylinders placed at a 60° angle. It includes a detailed description of the development of the constructional points, particularly the cylinders, pistons, and connecting rods, as well as the engine fitting, lubrication, oil pumps, bearings, oil tank, fuel pump, carburetors, and cooling system. There are seven pages of illustrative figures at the end of the report.
Contributing Partner: UNT Libraries Government Documents Department
Potash Mining in Germany and France

Potash Mining in Germany and France

Date: 1927
Creator: Rice, George S. & Davis, John A.
Description: From Scope of Bulletin: "This paper is confined largely to a discussion of methods of mining potash salts in France and Germany, in view of the possible application of similar methods when mining of the deposits in the southwestern part if the United States is undertaken, but it also includes a brief history of the German and French potash industry, a discussion of the geology of the deposits, a short description of the refining of crude salts for export, and an estimate of the cost of production."
Contributing Partner: UNT Libraries Government Documents Department