Collection
Texas Attorney General Opinions
1,744
Technical Report Archive and Image Library
1,664
National Advisory Committee for Aeronautics Collection
1,346
USDA Farmers' Bulletins
212
USGS Topographic Map Collection
206
Government Documents A to Z Digitization Project
201
Texas State Publications
59
Texas Soil Surveys
44
United States Experiment Station Record
23
Texas Senate Journals
22
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NACA Technical Notes
417
NACA Technical Memorandums
380
NACA Technical Reports
359
Farmers' bulletin (United States. Dept. of Agriculture)
195
United States Bureau of Mines Reports
175
NACA Aircraft Circulars
104
United States Geological Survey Reports
98
15 Minute Series (Topographic)
83
Leaflet (United States. Department of Agriculture)
69
NACA Special Reports
61
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4,125 Matching Results
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The Effect of Streamlining the Aterbody of an N.A.C.A. Cowling
Report presenting an investigation of the drag and power cost associated with the changing of the nose of a nacelle from a streamline shape to a conventional cowling shape. Full-scale propellers and nacelles were used. The results of the tests showed that the streamline afterbody drag approached that of an airship form and that the added drag due to the open-nose cowling was only a quarter of the drag increase obtained with the other afterbody.
Date:
December 1939
Creator:
Stickle, George W.; Crigler, John L. & Naiman, Irven
Object Type:
Report
System:
The UNT Digital Library
Fireproofing Christmas Trees.
Describes the use of fire-resisting chemicals as a way to reduce the fire hazard of Christmas trees.
Date:
December 1939
Creator:
Leatherman, Martin, 1902-
Object Type:
Book
System:
The UNT Digital Library
Liquefied Gas for the Household.
Describes the benefits of using liquefied gas as a means of power in the home, how it is measured and distributed, and its comparative costs.
Date:
December 1939
Creator:
Senner, Arthur H. (Arthur Henry) & Holbrook, Helen S. (Helen Shepard), b. 1882
Object Type:
Book
System:
The UNT Digital Library
Local instability of columns with I-, Z-, channel, and rectangular-tube sections
From Summary: "Charts are presented for the coefficients in the formulas for the critical compressive stress at which cross-sectional distortion begins in thin-wall columns of I-, Z-, channel, and rectangular-tube sections. The energy method of Timoshenko was used in the theoretical calculations required for the construction of the charts. The deflection equations were carefully selected to give good accuracy. The calculation of the critical compressive stress at stresses above the elastic range is briefly discussed in order to demonstrate the use of the formulas and the charts in engineering calculations. Two illustrative problems are included."
Date:
December 1939
Creator:
Stowell, Elbridge Z. & Lundquist, Eugene E.
Object Type:
Report
System:
The UNT Digital Library
Measurements of the Air-Flow Velocity in the Cylinder of an Airplane Engine
The object of the present investigation is to determine the velocity in the BMW-VI cylinder of an externally driven single-cylinder test engine at high engine speeds using the hot-wire method of Ulsamer.
Date:
December 1939
Creator:
Wenger, Hermann
Object Type:
Report
System:
The UNT Digital Library
Modern Methods of Testing
After a brief survey of the commonly used single-value test methods, the importance of the determination of the incipient knock for the octane number is discussed and improvements suggested for the knock testing in the CFR engine. The DVL supercharge test method with its superiority of direct determination of fuel knock in each single cylinder of an airplane engine without involving structural changes, is described and the advantages of a multiple-value method enumerated. A diagrammatic presentation of the knock characteristics is presented.
Date:
December 1939
Creator:
Seeber, F.
Object Type:
Report
System:
The UNT Digital Library
Monthly Report of the Attorney General of the State of Texas, Volume 1, Number 10, November 1939
Monthly report documenting orders, opinions, and other legal statements issued by the Office of the Attorney General in Texas.
Date:
December 1939
Creator:
Texas. Attorney-General's Office.
Object Type:
Report
System:
The Portal to Texas History
Observations in Flight of the Region of Stalled Flow Over the Blades of an Autogiro Rotor
"The flow over the inner halves of the rotor blades on a Kellet YG-1B autogiro was investigated in flight by making camera records of the motion of silk streamers attached to the upper surfaces of the blades. These records were analyzed to determine the boundaries of the region within which the flow over the blade sections was stalled for various tip-speed ratios. For the sake of comparison, corresponding theoretical boundaries were obtained. Both the size of the stalled area and its rate of growth with increasing tip-speed ratio were found to be larger than the theory predicted, although experiment agreed with theory with regard to shape and general location of the stalled area" (p. 1).
Date:
December 1939
Creator:
Bailey, F. J., Jr. & Gustafson, F. B.
Object Type:
Report
System:
The UNT Digital Library
Pressure-Distribution Measurements on a Rectangular Wing With a Partial-Span Split Flap in Curved Flight
"Pressure-distribution tests were made on the 32-foot whirling arm of the Daniel Guggenheim Airship Institute of a rectangular wing of NACA 23012 section to determine the rolling and the yawing moment due to angular velocity in yaw. The model was tested at 0 and 5 degree pitch; 0, +/- 5, and +/- 10 degrees yaw; and with no flap and with split flaps 25, 50 and 75 percent of the wing span and deflected 60 degrees. The results are given in the form of span load distributions and as calculated moment coefficients" (p. 1).
Date:
December 1939
Creator:
Rokus, Frank G.
Object Type:
Report
System:
The UNT Digital Library
Profile-Drag Investigation of an Airplane Wing Equipped with Rubber Inflatable De-Icer
"The National Advisory Committee for Aeronautics has made profile-drag measurements in flight of a wing which was equipped with a rubber inflatable de-icer and to which various stimulated ice formations were attached. Tuft observations at the stalling speed of the wing with the various drag conditions were made in order to determine the influence on the maximum lift coefficient. The de-icer installation caused an increase of from 10-20% in the profile drag of the plain wing and reduced CL(sub max) about 6%" (p. 1).
Date:
December 1939
Creator:
Rodert, Lewis A. & Jones, Alun R.
Object Type:
Report
System:
The UNT Digital Library
Protecting Field Borders.
A guide to establishing borders for farm fields, in order to allow for drainage, to prevent woodland encroachment, and to provide wildlife protection.
Date:
December 1939
Creator:
Davison, Verne E. (Verne Elbert), 1904-
Object Type:
Book
System:
The UNT Digital Library
A Recurrence Formula for Shear-Lag Problems
"The analysis of the bending action in box beams with appreciable shear deformation of the flanges becomes very difficult in the general case of variable cross section and loading. This paper presents a convenient method of solving the problem by the familiar method of dividing the beam into a number of bays that can be assumed to have constant cross section and loading. Application of formerly derived shear-lag formulas leads to a general equation closely analogous in form to the well-known three-moment equation" (p. 1).
Date:
December 1939
Creator:
Kuhn, Paul
Object Type:
Report
System:
The UNT Digital Library
Stress concentration around an open circular hole in a plate subjected to bending normal to the plane of the plate
"An aluminum-alloy plate containing an open circular hole of diameter large compared with the thickness of the plate was subjected to bending forces normal to the plane of the plate. Deflection and strain measurements were taken for two different loads. Stress concentrations occurred at the edge of the hole and the maximum stresses were tangential to the hole at the ends of the transverse diameter. The maximum stress at the edge of the hole was 1.59 times the computed stress on the net section and 1.85 times the computed stress in a solid plate of the same dimensions subjected to the same bending forces" (p. 1).
Date:
December 1939
Creator:
Dumont, C.
Object Type:
Report
System:
The UNT Digital Library
Texas Attorney General Opinion: O-1578A
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification;Fees of office-constables article 1055,V.A.C.C.P
Date:
December 1, 1939
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: O-1645
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: What, if anything, is the correct procedure for requiring a public warehouseman to post the bond required by Article 5569 and procure the certificate? What, if anything, may be done in the event he fails to do so?
Date:
November 29, 1939
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: O-1681
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Removal of the county seat of Leon County, Texas, from Centerville, the present county seat; and related questions.
Date:
November 29, 1939
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: O-1698
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Compensation of Actuary of Insurance Department on out-of State examination
Date:
November 29, 1939
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: O-1724
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Applicability of subsections (1) and (4) of Section (f) of Art, 5221b-17, Vernon’s Revised Civil Statutes, to factual situation hereinafter set out.
Date:
November 28, 1939
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: O-1738
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification;Compensation of members of the State Board of Hairdressers and cosmetologists.
Date:
November 28, 1939
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: O-1285
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Persons, firms or corporations required to hold fish and oyster dealers licenses and related matters.
Date:
November 24, 1939
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: O-1737
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification;Travelling expenses of State employees to conventions.
Date:
November 23, 1939
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: O-1728
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Authority of commissioners’ court to employ special council in a particular case and to amend budget to provide compensation for such special counsel.
Date:
November 22, 1939
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: O-1731
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Whether or to there is legal authority requiring only a majority vote cast in favor of bond issue to carry election for issuance of bonds.
Date:
November 22, 1939
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: O-1648
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Construction of Subsection (a) of Section 10, Article 2, of the Texas Liquor Control Act, in the following particulars: (1) Construction of the phrase "food and other commodities for human consumption sold by such license during such hour", restricts the consumption thereof on the premises where sold?
Date:
November 21, 1939
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History