Resource Type
Collection
Technical Report Archive and Image Library
185
National Advisory Committee for Aeronautics Collection
150
USGS Topographic Map Collection
27
Government Documents A to Z Digitization Project
14
USDA Farmers' Bulletins
13
Texas State Publications
8
Texas Soil Surveys
6
Texas House of Representatives Journals
2
Texas Senate Journals
2
Government Documents General Collection
2
4 More
Serial/Series Title
NACA Technical Memorandums
54
NACA Technical Reports
40
NACA Technical Notes
30
NACA Aircraft Circulars
25
United States Bureau of Mines Reports
22
15 Minute Series (Topographic)
13
Farmers' bulletin (United States. Dept. of Agriculture)
12
7.5 Minute Series (Topographic)
11
United States Geological Survey Reports
10
Leaflet (United States. Department of Agriculture)
6
34 More
States
256 Matching Results
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Coal-Mine Fatalities in the United States, 1928
Report compiled by the U.S. Bureau of Mines including statistics on fatalities in coal mines located in the United States as well as data regarding the various operations (e.g., number of miners employed and average production). The information is organized into tables for comparison and the text draws some overall conclusions in the summary.
Date:
1930
Creator:
Adams, William W.
Object Type:
Report
System:
The UNT Digital Library
Metal-Mine Accidents in the United States During the Calendar Year 1928
Report issued by the U.S. Bureau of Mines covering accidents that happened in metal mines located in the United States including statistics for injuries, fatalities, kinds and causes of accidents, and operational data, such as number of mine workers and shifts worked.
Date:
1930
Creator:
Adams, William W.
Object Type:
Report
System:
The UNT Digital Library
Quarry Accidents in the United States During the Calendar Year 1928
Report published by the U.S. Bureau of Mines which is a compilation of accidents in quarries located in the United States with data regarding the number and kinds of accidents as well as information about the mining operations (e.g., number of men employed, kinds of quarries, amount of work performed, etc.).
Date:
1930
Creator:
Adams, William W.
Object Type:
Report
System:
The UNT Digital Library
The National Safety Competition of 1929
Report issued by the U.S. Bureau of Mines on the fifth annual national safety competition. The states represented in the competition are listed. Accident-frequency rates are presented as well. This report includes tables.
Date:
May 1930
Creator:
Adams, William Waugh
Object Type:
Report
System:
The UNT Digital Library
The Magnus Effect in Theory and in Reality
A discussion of the Flettner rotor is presented from a nautical and economic viewpoint, and although it was a failure, the experimental and theoretical inventions cannot be disregarded. The following critical and experimental investigation will show the relations and applicability of the theories and practical applications. The Magnus effect is described in detail and a discussion and critical review of the Magnus effect is included.
Date:
May 1930
Creator:
Ahlborn, F.
Object Type:
Report
System:
The UNT Digital Library
Methods and Costs of Stripping and Mining at the United Verde Open-Pit Mine, Jerome, Arizona
Report issued by the U.S. Bureau of Mines discussing the mining practices and expenses of the United Verde open-pit mine west of Jerome, Arizona. As stated in the introduction, "the purpose of this paper is to present the methods used in developing and operating the mine, and to discuss the problems encountered" (p. 1). This report includes tables, maps, and illustrations.
Date:
February 1930
Creator:
Alenius, E. M. J.
Object Type:
Report
System:
The UNT Digital Library
Lamb as You Like It.
Describes uses for lamb meat in meals; provides recipes and methods for its preparation in various dishes.
Date:
November 1930
Creator:
Alexander, Lucy M. (Lucy Maclay), 1888-
Object Type:
Book
System:
The UNT Digital Library
Calculation of Tapered Monoplane Wings
The tapered wing shape increases the lift in the middle of the wing and thus reduces the bending moment of the lifting forces in the plane of symmetry. Since this portion of the wing is the thickest, the stresses of the wing material are reduced and desirable space is provided for stowing the loads in the wing. This statically excellent form of construction, however, has aerodynamic disadvantages which must be carefully weighed, if failures are to be avoided. This treatise is devoted to the consideration of these problems.
Date:
August 1930
Creator:
Amstutz, E.
Object Type:
Report
System:
The UNT Digital Library
The City Home Garden
Revised edition. "Fresh vegetables for an average family may be grown upon a large back yard or city lot.... Thousands of acres of idle land that may be used for gardens are still available within the boundaries of our large cities. Some of the problems that confront the city gardener are more difficult than those connected with the farm garden, and it is the object of this bulletin to discuss these problems from a practical standpoint." -- p. 2. Soil preparation, tools, seeding, watering, diseases and pests, and space issues are all discussed and brief descriptions of several vegetables are given.
Date:
1930
Creator:
Beattie, W. R. (William Renwick), b. 1870
Object Type:
Pamphlet
System:
The UNT Digital Library
Soil survey of Navarro County, Texas
Text describes the climate, agriculture, and soils of Navarro County, Texas.
Date:
1930
Creator:
Beck, M. W. (Miles Walter) & Templin, E. H. (Edward Henry)
Object Type:
Book
System:
The Portal to Texas History
Potash Bibliography to 1928 (Annotated): Review and Compilation of Technical Literature on Potash Salts (including the Alunites) and Their Foreign Occurrences
From Scope and Arrangement of Review: "This review is confined to the technical literature of the origin, history, and foreign occurrences of saline potassium minerals, their mining, description, treatment, and physical-chemical relations. The literature on alunite, jarosite, and related minerals has also been included. The literature on potash minerals associated with the nitrate deposits and on the silicate minerals has been omitted as well as that on analytical methods, statistics, political economy, and the very large field of patent literature. The material in this review is arranged chronologically and alphabetically according to the authors within each year."
Date:
1930
Creator:
Berliner, J. F. T.
Object Type:
Report
System:
The UNT Digital Library
The Vortex Theory and Its Significance in Aviation
This report will present ideas closely related to the vortex conception and illustrate them in the simplest possible terms. In addition to these general considerations, this report will attempt to show the application of the vortex theory in connection with the wing theory.
Date:
July 1930
Creator:
Betz, A.
Object Type:
Report
System:
The UNT Digital Library
Flight Tests for the Determination of Static Longitudinal Stability
The accuracy of the instruments used for flight test measurements has been inadequate so a new series of tests were commissioned with the development of an accurate elevator setting recorder.
Date:
September 1930
Creator:
Blenk, Hermann
Object Type:
Report
System:
The UNT Digital Library
Göttingen Six-Component Scale Measurements on a Junkers A 35 Airplane Model
The suggestion for the measurements collected in this report was prompted by the results of spinning experiments. For the theoretical spinning investigations there was a lack of data on lateral force, yawing, and rolling moment of airplanes.
Date:
October 1930
Creator:
Blenk, Hermann
Object Type:
Report
System:
The UNT Digital Library
Board of Regents of the Texas State Teachers Colleges Biennial Report: 1928-1930
Biennial report of the Board of Regents of the Texas State Teachers Colleges discussing activities of state teachers' colleges and providing an overview of relevant statistics and financial information related to state funding.
Date:
1930
Creator:
Board of Regents of the Texas State Teachers Colleges
Object Type:
Report
System:
The Portal to Texas History
Annual Report of the Boy Scouts of America: 1929
Annual report submitted by the Boy Scouts of America to Congress describing highlights from 1929, activities, department reports, finance, foreign relations, organizational leadership, and other information about scouting programs.
Date:
April 8, 1930
Creator:
Boy Scouts of America
Object Type:
Report
System:
The Portal to Texas History
Engineering Study of the Seminole Area, Seminole and Pottawatomie Counties, Oklahoma
Report issued by the Bureau of Mines over engineering studies conducted on Oklahoma oil fields. The results of the studies are presented and discussed. This report includes tables, illustrations, and photographs.
Date:
May 1930
Creator:
Brandenthaler, R. R.; Morris, W. S. & Bopp, C. R.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Characteristics of Twenty-Four Airfoils at High Speeds
"If a propeller is mounted directly on the of a modern high-speed airplane engine, the outer airfoil sections of the propeller travel at speeds approaching the speed of sound. It is possible by the use of gearing and a somewhat larger propeller to reduce the speed of the propeller sections, but only at the expense of additional weight and some frictional loss of power. This report presents the results of this work" (p. 327).
Date:
1930~
Creator:
Briggs, L. J. & Dryden, H. L.
Object Type:
Report
System:
The UNT Digital Library
Temperature coefficient of the modulus of rigidity of aircraft instrument diaphragm and spring materials
Experimental data are presented on the variation of the modulus of rigidity in the temperature range -20 to +50 degrees C. of a number of metals which are of possible use for elastic elements for aircraft and other instruments. The methods of the torsional pendulum was used to determine the modulus of rigidity and its temperature coefficient for aluminum, duralumin, monel metal, brass, phosphor bronze, coin silver, nickel silver, three high carbon steels, and three alloy steels. It was observed that tensile stress affected the values of the modulus by amounts of 1 per cent or less.
Date:
March 7, 1930
Creator:
Brombacher, W. G. & Melton, E. R.
Object Type:
Report
System:
The UNT Digital Library
Why Some Wood Surfaces Hold Paint Longer Than Others.
Describes the different factors to consider when selecting wood to be painted.
Date:
September 1930
Creator:
Browne, F. L. (Frederick Lincoln), 1895-
Object Type:
Book
System:
The UNT Digital Library
Combating Airplane Fires
This report provides a summary of the important steps to be taken in combating airplane fires. Some considerations and ways of preventing fires from developing are provided.
Date:
January 1930
Creator:
Brunat, Henri
Object Type:
Report
System:
The UNT Digital Library
The gipsy moth and the brown-tail moth.
Describes methods of controlling the gypsy and browntail moths, as well as government efforts to prevent widespread defoliation.
Date:
December 1930
Creator:
Burgess, A. F. (Albert Franklin), 1873-
Object Type:
Book
System:
The UNT Digital Library
Flight tests on U.S.S. Los Angeles. Part 2: stress and strength determination
From Summary: "The tests described in this report furnished data on the actual aerodynamic forces, and the resulting stresses and bending moments in the hull of the U. S. S. "Los Angeles" during as severe still-air maneuvers as the airship would normally be subjected to, and in straight flight during as rough air as is likely to occur in service, short of squall or storm conditions. The maximum stresses were found to be within the limits provided for in accepted practice in airship design. Normal flight in rough air was shown to produce forces and stresses about twice as great as the most severe still-air maneuvers."
Date:
January 1930
Creator:
Burgess, C. P.
Object Type:
Report
System:
The UNT Digital Library
The Chakachamna-Stony Region, Alaska
A report on the exploration and survey of the Chakachamna-Stony Region of Alaska.
Date:
1930
Creator:
Capps, Stephen R.
Object Type:
Report
System:
The UNT Digital Library