You limited your search to:

  Partner: UNT Libraries Government Documents Department
 Decade: 1920-1929
 Serial/Series Title: National Bureau of Standards Reports
Fire Tests of Building Columns

Fire Tests of Building Columns

Date: April 21, 1921
Creator: Ingberg, S. H.; Griffin, H. K.; Robinson, W. C. & Wilson, R. E.
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
Tests of Large Columns with H-Shaped Sections

Tests of Large Columns with H-Shaped Sections

Date: June 11, 1926
Creator: Tuckerman, L. B. & Stang, A. H.
Description: Report issued by the Bureau of Standards over studies conducted on h-shaped columns. Physical and chemical tests were conducted on different types of columns. The results are presented and discussed. This report includes tables, illustrations, and photographs.
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
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
Measurements on the Thermal Expansion of Fused Silica

Measurements on the Thermal Expansion of Fused Silica

Date: April 13, 1926
Creator: Souder, Wilmer H. & Hidnert, Peter
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
The Ultra-Violet and Visible Transmission of Various Colored Glasses

The Ultra-Violet and Visible Transmission of Various Colored Glasses

Date: March 19, 1920
Creator: Gibson, K. S.; Tyndall, E. P. T. & McNicholas, H. J.
Description: Technical paper issued by the Bureau of Standards over studies conducted on transmissions of ultra-violet energy through different colored glasses. As stated in the introduction, "in the present paper are given the transmissions for the visible and ultra-violet of a large number of glasses, mostly colored, which are not used primarily for eye protection, but which are useful for various other purposes" (p. 3). This paper includes illustrations, and photographs.
Contributing Partner: UNT Libraries Government Documents Department
Use of Sulphite Cellulose Extract as a Tanning Material

Use of Sulphite Cellulose Extract as a Tanning Material

Date: November 1, 1926
Creator: Wallace, E. L. & Bowker, Roy Clement
Description: Report issued by the Bureau of Standards over chemicals used for tanning leather hides. As stated in the introduction: "an investigation was conducted to determine the suitability of sulfite cellulose extracts, derived from the waste liquors discharged from paper pulp mills, for use in tanning hides for the manufacture of leather" (p. 309). This report includes tables, and photographs.
Contributing Partner: UNT Libraries Government Documents Department
Radio-Frequency Resistance and Inductance of Coils Used in Broadcast Reception

Radio-Frequency Resistance and Inductance of Coils Used in Broadcast Reception

Date: October 22, 1925
Creator: Hund, August & De Groot, H. B.
Description: Technical paper issued by the Bureau of Standards over radio-frequency resistance in radio reception. As stated in the introduction, "the purpose of this paper is to present data on the radio-frequency resistance and inductance of coils within the range of frequencies used in radiotelephone broadcasting" (p. 651). This paper includes tables, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Testing of Fire-Clay Brick with Special Reference to their Use in Coal-Fired Boiler Settings

Testing of Fire-Clay Brick with Special Reference to their Use in Coal-Fired Boiler Settings

Date: February 13, 1925
Creator: Geller, R. F.
Description: Technical paper issued by the Bureau of Standards over studies conducted on fire-clay bricks. The results of the studies are discussed. This paper includes tables, and illustrations.
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
FIRST PREV 1 2 NEXT LAST