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  Partner: UNT Libraries Government Documents Department
 Decade: 1920-1929
 Serial/Series Title: National Bureau of Standards Reports
 Collection: Technical Report Archive and Image Library
Annual Report of the Director [of] the Bureau of Standards to the Secretary of Commerce for the Fiscal Year Ended June 30, 1921

Annual Report of the Director [of] the Bureau of Standards to the Secretary of Commerce for the Fiscal Year Ended June 30, 1921

Date: 1921
Creator: United States. Bureau of Standards.
Description: Report describing the functions and operations of the United States Bureau of Commerce and its divisions during the fiscal year.
Contributing Partner: UNT Libraries Government Documents Department
Comparison of American, British, and German Standards for Metal Fits

Comparison of American, British, and German Standards for Metal Fits

Date: 1927
Creator: Fullmer, Irvin H.
Description: Report issued by the Bureau of Standards discussing the comparison of American, British, and German metal fit standards. The comparisons between national standards of the three countries are presented and described. This report includes tables, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Cooperative Measurements of Radio Fading in 1925

Cooperative Measurements of Radio Fading in 1925

Date: August 17, 1927
Creator: Dellinger, J. H.; Jolliffe, C. B. & Parkinson, T.
Description: Scientific paper issued by the Bureau of Standards over studies conducted on radio fading. As stated in the abstract, "the series of measurements on fading were devoted to studies of fading effects during the sunset period, effects during the solar eclipse of January 24, the fading variations throughout a 24-hour day, and the effects of high transmitting power on fading" (p. 419). This paper includes tables, maps, illustrations, and photographs.
Contributing Partner: UNT Libraries Government Documents Department
Efflux of Gases Through Small Orifices

Efflux of Gases Through Small Orifices

Date: January 28, 1920
Creator: Buckingham, Edgar
Description: Scientific paper issued by the Bureau of Standards over studies conducted on gas effusion rates. The methods used and the results of the studies are presented and discussed. This paper includes tables, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Endurance Tests of Tires

Endurance Tests of Tires

Date: May 25, 1926
Creator: Holt, W. L. & Workeley, P. L.
Description: Technical paper issued by the Bureau of Standards over studies conducted on the endurance of tires. 230 tires of 36 different brands were tested during the studies. The results of the studies are presented and discussed. This paper includes tables, and photographs.
Contributing Partner: UNT Libraries Government Documents Department
Fire Tests of Building Columns

Fire Tests of Building Columns

Date: April 21, 1921
Creator: Ingberg, S. H.
Description: Technical paper issued by the Bureau of Mines over studies conducted on fire resistance on building columns. As stated in the introduction, "the purpose of this investigation is to ascertain (1) the ultimate resistance against fire, of protected and unprotected columns as used in the interior of buildings; (2) their resistance against impact and sudden cooling from hose streams when in a highly heated condition" (p. 12). This paper includes tables, illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Formulas, Tables and Curves for Computing the Mutual Inductance of Two Coaxial Circles

Formulas, Tables and Curves for Computing the Mutual Inductance of Two Coaxial Circles

Date: August 5, 1924
Creator: Curtis, Harvey L. & Sparks, C. Matilda
Description: Scientific paper issued by the Bureau of Standards over the mutual inductance of two coaxial circles. As stated in the abstract, "a number of examples are given to show the methods of computation by the different formulas, tables, and charts" (p. 541). This paper includes tables, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Measurements on the Thermal Expansion of Fused Silica

Measurements on the Thermal Expansion of Fused Silica

Date: April 13, 1926
Creator: Souder, Wilmer H.
Description: Scientific paper issued by the Bureau of Standards over thermal expansion of fused silica. As stated in the abstract, "this paper gives the results of an investigation on the thermal expansion of transparent and nontransparent fused silica for various temperature ranges between -125 and +1,000 degrees Celsius. A detailed description of the apparatus and the methods used in this research and a summary of available data obtained by previous observers on the thermal expansion of fused silica are given" (p. 1). This paper includes tables, photographs, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Motor-Vehicle Headlighting

Motor-Vehicle Headlighting

Date: 1925
Creator: Carlson, R. E.
Description: Report issued by the Bureau of Standards discussing the improved illumination of night-time driving with the use of vehicle head-lighting. Methods of construction and adjustment information are presented. This report includes tables, illustrations, and photographs.
Contributing Partner: UNT Libraries Government Documents Department
A New Interferential Dilatometer

A New Interferential Dilatometer

Date: February 28, 1920
Creator: Priest, Irwin G.
Description: Scientific paper issued by the Bureau of Mines over development of a dilatometer. The instrument is used in tests of thermal expansion. The methods are presented and discussed. This paper includes an illustration.
Contributing Partner: UNT Libraries Government Documents Department
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