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Air and Gas Injection in the Oil Fields of Illinois
Report issued by the U.S. Bureau of Mines on the gas injection methods in the oil fields of Illinois. The results and properties of the injections are presented. This report includes tables, graphs, illustrations, and maps.
Date:
November 1944
Creator:
Keithly, C. M. & Jennings, Thomas
Object Type:
Report
System:
The UNT Digital Library
Bucket Excavator.
Patent for "new and useful Improvement in Bucket Excavators, of which the following is a specification. My invention relates to excavators of that kind in which a bucked is arranged to travel back and forth upon a runway which is lowered into the ground and which is adapted to determine the cross sectional outline of the ditch or excavation" (lines 5-13).
Date:
November 30, 1915
Creator:
Bettis, William I.
Object Type:
Patent
System:
The Portal to Texas History
Quarterly Report August 1947 to November 1947, Biology Division
The following document is a compilation of quarterly reports from August 1946 to November of 1947 from the Biology Division of the University of Chicago.
Date:
November 1, 1947
Creator:
Brues, Austin M.
Object Type:
Report
System:
The UNT Digital Library
Annual Report of Research and Technologic Work on Coal: Fiscal Year 1941
Report issued by the U.S. Bureau of Mines discussing the annual report over the research and technology of coal during 1941. As stated in the foreword, "these investigations increase our fund of exact knowledge on the properties and composition of American coals and lead to better methods in mining, preparing, storing, and utilizing coal" (p. 4). This report includes tables, illustrations, photographs, and a map.
Date:
November 1941
Creator:
Fieldner, Arno Carl & Schmidt, L. D.
Object Type:
Report
System:
The UNT Digital Library