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Tables of the Confluent Hypergeometric Function F(n/2, 1/2; X) and Related Functions
Report presenting tables of the confluent hypergeometric function and some related functions. Information regarding the scope of tables, analytical properties, and approximations are provided.
Date:
1949
Creator:
United States. National Bureau of Standards. Computation Laboratory.
Object Type:
Report
System:
The UNT Digital Library
Sound Insulation of Wall and Floor Constructions
Report presenting the results of sound-transmission measurements made on a number of types of sound insulating construction.
Date:
1940
Creator:
United States. National Bureau of Standards.
Object Type:
Report
System:
The UNT Digital Library
European Footwear Sizes
Description of the differences in European shoe sizes in comparison to American shoe sizes.
Date:
1948
Creator:
Hobbs, Robert B.
Object Type:
Report
System:
The UNT Digital Library
The Fundamental Basis for the Standardization of Electrical Instruments and Meters
Description of the standards used by the electrical power industry for the measurement of the electrical quantities.
Date:
May 7, 1948
Creator:
Silsbee, Francis B.
Object Type:
Report
System:
The UNT Digital Library
Safety for the Household
Introduction: The purpose of this circular is (a) to emphasize the seriousness of certain risks to life and property frequently occurring in or about the home, (b) to give simple methods of care and caution against such hazards, and (c) to stimulate interest in public measures directed toward safety for household and community.
Date:
January 12, 1948
Creator:
Owen, S. J.
Object Type:
Report
System:
The UNT Digital Library
Bending Moment Due to Wind Pressure on Pole Chart 2A
Chart showing bending moment due to wind pressure on poles for various pole heights, circumferences, and loading. It is enlarged from figures in NBS discussion of national electrical safety code (handbook H39).
Date:
August 7, 1944
Creator:
United States. National Bureau of Standards.
Object Type:
Technical Drawing
System:
The UNT Digital Library
Ultimate Resisting Moments of Wood Poles Chart 2B
Chart showing the ultimate resisting moments of wood poles based on the circumferences at ground line for different kinds of woods. It is enlarged from figures in NBS discussion of national electrical safety code (handbook H39).
Date:
August 7, 1944
Creator:
United States. National Bureau of Standards.
Object Type:
Technical Drawing
System:
The UNT Digital Library
Catenary Chart 3
Chart of catenary curve ordinates: "The curve gives approximate values of sag at all points on the catenary curve expressed in per cent of the center sag. The error is negligible for all spans in which the center sag is less than 10% of the span length." It is enlarged from figures in NBS discussion of national electrical safety code (handbook H39).
Date:
August 7, 1944
Creator:
United States. National Bureau of Standards.
Object Type:
Technical Drawing
System:
The UNT Digital Library
Map of Standard Time Zones of the United States and Adjacent Parts of Canada and Mexico as of January 1, 1948
Map of the United States and surrounding areas with time zones marked and labeled in red. Bodies of water are marked, with depth marked by hatchures, as well as state lines and major cities..
Date:
January 1, 1948
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The UNT Digital Library
Nomograms for Obtaining the Compound Composition of Hydrated Limes from the Oxide Analysis
Report with two nomograms presented for rapidly obtaining the compound composition of hydrated limes from the oxide analysis. The general nomogram can be applied to any commercial hydrated lime and gives values accurate to within 0.3 percent while the special nomogram is applicable only to regularly hydrated and highly hydrated dolomitic limes and is accurate to within 0.1 percent.
Date:
December 30, 1949
Creator:
Levin, Ernest M.
Object Type:
Report
System:
The UNT Digital Library
Charts of Compressibility Factors and Charts Showing Quantities Delivered by Commercial Cylinders for Hydrogen, Nitrogen, and Oxygen
Two charts are given for each of the gases hydrogen, nitrogen, and oxygen. The first gives directly the number of standard cubic feet of the gas which a cylinder will deliver. The second chart gives values of the compressibility factor and of the density.
Date:
November 17, 1948
Creator:
Hoge, Harold J.; Meyers, Cyril H. & McCoskey, Robert E.
Object Type:
Report
System:
The UNT Digital Library
Report of the Thirty-Third National Conference on Weights and Measures, 1947
Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Date:
September 1948
Creator:
United States. National Bureau of Standards.
Object Type:
Report
System:
The UNT Digital Library
[Charts for Various Aspects of Poles]
Chart 1A-1B. Conductor loading nomograph, Chart 2A. Bending moment due to wind pressure on pole, Chart 2B. Ultimate resisting moments of wood poles, Chart 3. Catenary curve.
Date:
August 7, 1944
Creator:
United States. National Bureau of Standards.
Object Type:
Technical Drawing
System:
The UNT Digital Library
Conductor Loading Nomograph Chart 1B
Chart related to conductor loading showing vertical, transverse and conductor loads in pounds per linear feet of conductor. It is enlarged from figures in NBS discussion of national electrical safety code (handbook H39).
Date:
August 7, 1944
Creator:
United States. National Bureau of Standards.
Object Type:
Technical Drawing
System:
The UNT Digital Library
Manual of Fire-Loss Prevention of the Federal Fire Council
From preface: "This issue of the Manual of Fire-Loss Prevention, the first edition of which was published in 1934, includes revisions and additions made in part to cover improvements in the past 10 years in methods of preventing and controlling fires. Such methods remain dependent largely on the elimination of preventable fires and abatement of loss from those that originate, by the use of appropriate designs and materials in building construction and the installation of applicable fire alarm and extinguishing equipment, to the extent justified by the hazard" (p. ii).
Date:
1945
Creator:
Federal Fire Council (U.S.)
Object Type:
Report
System:
The UNT Digital Library
Guide Chart for Carbon Brush Terminals (Electric)
Diagrams and tolerances in inches for different size terminals.
Date:
June 1, 1945
Creator:
United States. Bureau of Standards.
Object Type:
Report
System:
The UNT Digital Library
Report of the Twenty-Ninth National Conference on Weights and Measures, 1939
Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Date:
1940
Creator:
United States. National Bureau of Standards.
Object Type:
Report
System:
The UNT Digital Library
National electrical safety code: grounding rules and parts 1, 2, 3, 4, and 5
A report on the national electrical safety code.
Date:
March 1948
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Safety Rules for the Installation and Maintenance of Electric Supply and Communication Lines: Comprising Part 2 and the Grounding Rules of the Fifth Edition, National Electrical Safety Code
A report on the safety rules for the installation and maintenance of electric supply and communication lines.
Date:
September 23, 1941
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Table and Mollier chart for ammonia below -60° F
A report containing a table and Mollier chart for ammonia below -60° F.
Date:
November 1, 1948
Creator:
Meyers, Cyril H.
Object Type:
Report
System:
The UNT Digital Library
Automotive Antifreezes
From abstract: "A report on when antifreeze should be installed, what strength should be used, and what kind of antifreeze is best suited to the service involved."
Date:
November 10, 1948
Creator:
Brooks, Donald B. & Streets, Ronald E.
Object Type:
Report
System:
The UNT Digital Library
High-Frequency Voltage Measurement
Fundamental principles and techniques used for voltage measurements primarily for frequencies in the upper audio- and radio-frequency ranges and including part of the ultrahigh frequency range.
Date:
September 1, 1949
Creator:
Selby, Myron C.
Object Type:
Report
System:
The UNT Digital Library
Report of the Thirtieth National Conference on Weights and Measures, 1940
Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Date:
1941
Creator:
United States. National Bureau of Standards.
Object Type:
Report
System:
The UNT Digital Library
Report of the Thirty-First National Conference on Weights and Measures, 1941
Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Date:
1941
Creator:
United States. National Bureau of Standards.
Object Type:
Report
System:
The UNT Digital Library