Permissible Explosives, Mining Equipment, and Apparatus Approved Prior to January 1, 1924 (open access)

Permissible Explosives, Mining Equipment, and Apparatus Approved Prior to January 1, 1924

Report documenting mining explosives, equipment, and breathing apparatuses approved by the United States Bureau of Mines prior to January 1, 1924.
Date: 1924
Creator: Crawshaw, John Edward, 1880-; Ilsley, L. C., 1880-; Parker, Dorsey J. & Fieldner, Arno Carl, 1881-1966
System: The UNT Digital Library
Gas Masks for Gasoline and Petroleum Vapors (open access)

Gas Masks for Gasoline and Petroleum Vapors

Technical paper issued by the Bureau of Mines over gas masks developed for gasoline and petroleum vapors. Descriptions of different types of gas masks developed are presented. This paper includes tables, photographs, and illustrations.
Date: August 1924
Creator: Katz, Sidney H. & Bloomfield, J. J.
System: The UNT Digital Library
Experiments in the Use of Back Pressures on Oil Wells (open access)

Experiments in the Use of Back Pressures on Oil Wells

Technical paper issued by the Bureau of Mines over experiments conducted on the back pressure of oil wells. The results of the experiments are presented and discussed. This paper includes tables, photographs, and illustrations.
Date: September 1924
Creator: Swigart, T. E. & Bopp, C. R.
System: The UNT Digital Library