UNT Libraries Government Documents Department - 298 Matching Results

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The Development of Electrical Strain Gages

Description: "The design, construction, and properties of an electrical-resistance strain gage consisting of fine wires molded in a laminated plastic are described. The properties of such gages are discussed and also the problems of molding of wires in plastic materials, temperature compensation, and cementing and removal of the gages. Further work to be carried out on the strain gage, together with instrument problems, is discussed" (p. 1).
Date: January 1940
Creator: de Forest, A. V. & Leaderman, H.
Item Type: Refine your search to only Report
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DFS Dive-Control Brakes for Gliders and Airplanes and Analytical Study of the Drag of the DFS Dive-Control Brake

Description: These two reports are surveys on the progress and present state of development of dive-control flaps for gliders and airplanes. The second article describes how on the basis of wind tunnel and free-flight tests, the drag increase on brake flaps of the type DFS, can be predicted. Pressure records confirm a two-dimensional load distribution along the brake-flap surface.
Date: January 1940
Creator: Jacobs, Hans & Wanner, Adolf
Item Type: Refine your search to only Report
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Diseases and Insects of Garden Vegetables.

Description: Describes a wide variety of insect pests and diseases of vegetables, their characteristics, and the steps farmers can take to prevent, control, and treat these threats.
Date: 1940
Creator: Gilbert, William W. (William Williams), b. 1880; Popenoe, C. H. (Charles Holcomb), 1884-1933 & Caffrey, D. J.
Item Type: Refine your search to only Book
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Effect of Wing Loading, Aspect Ratio, and Span Loading of Flight Performances

Description: "An investigation is made of the possible improvements in maximum, cruising, and climbing speeds attainable through increase in the wing loading. The decrease in wing area was considered for the two cases of constant aspect ratio and constant span loading. For a definite flight condition, an investigation is made to determine what loss in flight performance must be sustained if, for given reasons, certain wing loadings are not to be exceeded. With the aid of these general investigations, the tr… more
Date: January 1940
Creator: Göthert, B.
Item Type: Refine your search to only Report
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Emmer and Spelt.

Description: Describes the history, characteristics, production methods, and uses of emmer and spelt.
Date: 1940
Creator: Martin, John H. (John Holmes), 1893- & Leighty, C. E. (Clyde Evert), b. 1882
Item Type: Refine your search to only Book
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Experiment Station Record, Volume 81, July-December, 1939

Description: Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, bibliographies, and listings for Spanish edition publications from the Puerto Rico Station. Name and subject indexes start on page 893.
Date: 1940
Creator: U.S. Department of Agriculture. Office of Experiment Stations.
Item Type: Refine your search to only Book
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Explosion Hazards in Storage-Battery Rooms

Description: Report issued by the Bureau of Mines discussing the safety and explosion hazards present in storage-battery rooms. Descriptions of storage-battery rooms and methods of ventilation are presented. This report includes tables, illustrations, and photographs.
Date: 1940
Creator: Jones, G. W.; Campbell, John; Dillon, R. E. & Benson, O. B.
Item Type: Refine your search to only Report
open access

Fall-sown oat production.

Description: A guide to planting and harvesting fall-sown oats in the southern United States. Includes descriptions of oat varieties.
Date: 1940
Creator: Stanton, T. R. (Thomas Ray), b. 1885 & Coffman, Franklin A. (Franklin Arthur), 1892-
Item Type: Refine your search to only Book
open access

Farm horseshoeing.

Description: Describes the need for shoeing horses, and the steps that should be taken to successfully shoe horses on the farm.
Date: 1940
Creator: Asmus, Henry, 1873-1939. & Williams, J. O. (John Oscar), 1885-
Item Type: Refine your search to only Book
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Farm plumbing.

Description: Provides information regarding plumbing materials, pipes, fixtures, installation procedures, and installation costs.
Date: 1940
Creator: Warren, George M. (George Milton)
Item Type: Refine your search to only Book
open access

Fire-Retardant Treatments of Liquid-Oxygen Explosives

Description: From Introduction Present Investigation: "The scope of the investigation was limited to study of the effects of fire-retardant treatments on the resistance to ignition, physical characteristics, and practical hazards of handling the liquid-oxygen explosive prepared from the granular carbonaceous absorbent mentioned, from wrappers of a triple-filled canvas, and from a liquid oxygen of standard high purity."
Date: 1940
Creator: Denues, A. R. T.
Item Type: Refine your search to only Report
open access

Fire Safeguards for the Farm.

Description: Describes how to remove fire threats from the farm, and how to prepare to fight a fire should one break out on the farm.
Date: 1940
Creator: Valgren, V. N. (Victor Nelson), b. 1876; Roethe, Harry E. (Harry Edward), 1891-1989; Betts, M. C. (Morris Cotgrave), 1875-1936; Ashby, Wallace, b. 1890; Rowe, William H. (William Hobson), b. 1896 & Mattoon, Wilbur R. (Wilbur Reed), 1875-1941
Item Type: Refine your search to only Book
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General Potential Theory of Arbitrary Wing Section

Description: This report gives the exact treatment of the problem of determining the 2-dimensional potential flow around wing sections of any type. The treatment is based directly on the solution of this problem as advanced by Theodorsen in NACA-TR-411. The problem condenses into the compact form of an integral equation capable of yielding numerical solutions by a direct process.
Date: 1940
Creator: Theodorsen, T. & Garrick, I. E.
Item Type: Refine your search to only Report
open access

Geology of Area Between Green and Colorado Rivers, Grand and San Juan Counties, Utah

Description: From Abstract: "The area described in this report comprises about 900 square miles of arid land lying between the Green and Colorado Rivers south of the Denver & Rio Grande Western Railroad and southwest of the Salt Valley anticline. The rocks that crop out or that have been encountered in wells drilled in the are all sedimentary and range in age from Pennsylvania ti Upper Cretaceous. Mesizoic strata are especially well represented."
Date: 1940
Creator: McKnight, Edwin Thor
Item Type: Refine your search to only Report
open access

Geology of the Kettleman Hills Oil Field, California: Stratigraphy, Paleontology, and Structure

Description: From Introduction: The field work that furnished the basis for this report was begun in 1930 and was continued at intervals until 1934. The anticlinal character of the Kettleman Hills is apparent to even the casual observer, but the many structural complications due to an intricate network of minor faults, at least in North Dome and Middle Dome, are much less obvious. Though it is improbable that these faults have any relation to the occurrence of oil, an attempt was made to map them, not only … more
Date: 1940
Creator: Woodring, W. P.; Stewart, Ralph & Richards, R. W.
Item Type: Refine your search to only Report
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