Adaptation of aeronautical engines to high altitude flying (open access)

Adaptation of aeronautical engines to high altitude flying

Report discussing Issues and techniques relative to the adaptation of aircraft engines to high altitude flight. Covered here are the limits of engine output, modifications and characteristics of high altitude engines, the influence of air density on the proportions of fuel mixtures, methods of varying the proportions of fuel mixtures, the automatic prevention of fuel waste, and the design and application of air pressure regulators to high altitude flying. Summary: 1. Limits of engine output. 2. High altitude engines. 3. Influence of air density on proportions of mixture. 4. Methods of varying proportions of mixture. 5. Automatic prevention of fuel waste. 6. Design and application of air pressure regulators to high altitude flying.
Date: May 1923
Creator: Kutzbach, K.
Object Type: Report
System: The UNT Digital Library
All-Metal Junkers Airplane, Type F 13 (open access)

All-Metal Junkers Airplane, Type F 13

Circular describing the all-metal Junkers airplane, specifically the F 13 type. The primary characteristics of the airplanes are the thick cantilever Junkers wing without stay-wires and the all-metal construction. A description of the design, flight characteristics, and some photographs are provided.
Date: May 1926
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Bridge Grafting. (open access)

Bridge Grafting.

Provides instructions for bridge-grafting to save fruit trees that have been damaged by rodents or disease.
Date: May 1927
Creator: Yerkes, Guy E. (Guy Eston), 1880-
Object Type: Book
System: The UNT Digital Library
Control of potato-tuber diseases. (open access)

Control of potato-tuber diseases.

Describes various potato-tuber diseases, as well as the various methods of control of these diseases.
Date: May 1926
Creator: Shapovalov, Michael. & Link, George K. K. (George Konrad Karl), b. 1888.
Object Type: Book
System: The UNT Digital Library
The Problem of Fuel Measurement: The Schiske "Konsummeter" (open access)

The Problem of Fuel Measurement: The Schiske "Konsummeter"

Any measuring device, which immediately indicates the rate of fuel consumption in the desired units, has the advantage of saving considerable time and fuel, besides facilitating the adjustment of the carburetor. The Schiske "Konsummeter" (made by the "PS-Vergaser and Apparatebau A. G.") was designed from the above viewpoint.
Date: May 1925
Creator: Praetorius, K. R. H.
Object Type: Report
System: The UNT Digital Library
European Commercial Aeronautics (open access)

European Commercial Aeronautics

"During the months of June to September, 1924, I personally visited the principal airports of Europe and traveled as a passenger some 6500 air miles on English, French, Romanian, Polish, German and Dutch air lines in order to investigate the development of commercial aviation abroad. The results of the investigation are embodied in a series of reports, of which a summary of the general findings is given below" (p. 1).
Date: May 1925
Creator: Van Zandt, J. Parker
Object Type: Report
System: The UNT Digital Library
Alloys Similar to Duralumin Made in Other Countries Than Germany (open access)

Alloys Similar to Duralumin Made in Other Countries Than Germany

Attempts by other countries to develop patents for alloys similar to duralumin are presented. Duralumin is aluminum alloyed with 3.5-4.5% copper, 0.5% magnesium, and 0.25-1% of manganese. A description of various materials that some have attempted to patent are provided.
Date: May 1925
Creator: Meissner, K. L.
Object Type: Report
System: The UNT Digital Library
Structural Methods Employed by the Schutte-Lanz Airship Company (open access)

Structural Methods Employed by the Schutte-Lanz Airship Company

"This article is based on the experience of the Schute-Lanz Airship Company in light construction. The object is to stimulate the employment of these methods in other fields of industry" (p. 1).
Date: May 1925
Creator: Gentzcke
Object Type: Report
System: The UNT Digital Library
Insects attacking the peach in the South and how to control them. (open access)

Insects attacking the peach in the South and how to control them.

Describes various species of insects that target peach crops in the southern United States, and methods of control.
Date: May 1928
Creator: Snapp, Oliver I.
Object Type: Book
System: The UNT Digital Library
Air-Flow Experiments (open access)

Air-Flow Experiments

This report describes the apparatus used to take air-flow photographs. The photographs show chiefly the spiral course of the lines of flow near the tip of the wing. They constitute therefore a visual presentation of the phenomena covered by airfoil theory.
Date: May 1924
Creator: Wieselsberger, C.
Object Type: Report
System: The UNT Digital Library
Light Airplanes Which Participated in Contest at Lympne, England, October, 1923 (open access)

Light Airplanes Which Participated in Contest at Lympne, England, October, 1923

"The purpose of this memorandum is to present in a concise form a description, with drawings, of the most practical light airplanes participating in the meet at Lympne, England, in October, 1923. Features, which are particularly suitable for this type of aircraft, are described and a special reference is made to achievements which indicate progress and possibilities both from a commercial and a military point of view" (p. 1).
Date: May 1924
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Rice as food. (open access)

Rice as food.

Describes the international importance of rice; provides various dishes, recipes, tips, and cooking methods, all revolving around rice as a main foodstuff.
Date: May 1921
Creator: United States. Department of Agriculture. Office of Home Economics.
Object Type: Book
System: The UNT Digital Library
The common cabbage worm and its control. (open access)

The common cabbage worm and its control.

Describes the characteristics and life history of the common cabbage worm, the damage it can cause, and methods of control.
Date: May 1926
Creator: Chittenden, F. H. (Frank Hurlbut), 1858-1929
Object Type: Book
System: The UNT Digital Library
The potato leafhopper and how to control it. (open access)

The potato leafhopper and how to control it.

Describes the characteristics and life cycle of the potato leafhopper, and methods for control.
Date: May 1926
Creator: Dudley, J. E.
Object Type: Book
System: The UNT Digital Library
Good food habits for children. (open access)

Good food habits for children.

Describes how to assist young children in transitioning from milk to solid food. Suggests ways to establish regular eating times, encourage self-feeding, and help the child develop a positive attitude toward eating.
Date: May 1929
Creator: Schmidt, C. Rowena
Object Type: Book
System: The UNT Digital Library
Good Naval-Stores Practice. (open access)

Good Naval-Stores Practice.

Describes best practices for tapping trees for naval stores, in order to yield the most gum and prevent damage to trees.
Date: May 1929
Creator: Cary, Austin, 1865-1936
Object Type: Book
System: The UNT Digital Library
Mollier Chart of Properties of Ammonia, 1923 (open access)

Mollier Chart of Properties of Ammonia, 1923

Mollier chart of properties of ammonia.
Date: May 1, 1923
Creator: United States. Bureau of Standards.
Object Type: Report
System: The UNT Digital Library
The Southern Pine Beetle: A Serious Enemy of Pines in the South. (open access)

The Southern Pine Beetle: A Serious Enemy of Pines in the South.

Describes the characteristics of the southern pine beetle, the damage it causes to pine trees in the southern United States, and methods of control.
Date: May 1929
Creator: St. George, R. A. (Raymond Alexander), b. 1894 & Beal, J. A. (James Allen), 1898-
Object Type: Book
System: The UNT Digital Library
Leaching Nonsulphide Copper Ores with Sulphur Dioxide (open access)

Leaching Nonsulphide Copper Ores with Sulphur Dioxide

Report issued by the Bureau of Mines discussing the sulfurous acid leaching of the Southwest experiment station. Operations and analyses of the experiment station are presented. This report includes tables, illustrations, and photographs.
Date: May 1923
Creator: Van Barneveld, Charles E. & Leaver, Edmund S.
Object Type: Report
System: The UNT Digital Library
Endurance Tests of Tires (open access)

Endurance Tests of Tires

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.
Date: May 25, 1926
Creator: Holt, W. L. & Wormeley, P. L.
Object Type: Report
System: The UNT Digital Library
Safe Mechanical Equipment for Use in Shaft Sinking (open access)

Safe Mechanical Equipment for Use in Shaft Sinking

Technical paper issued by the Bureau of Mines over shaft sinking safety. Safe mechanical equipment and procedures are discussed. This paper includes illustrations.
Date: May 1922
Creator: Kudlich, R. H.
Object Type: Report
System: The UNT Digital Library
Utilization of alfalfa. (open access)

Utilization of alfalfa.

Describes various uses for alfalfa, with instructions for each.
Date: May 1922
Creator: Oakley, R. A. (Russell Arthur) & Westover, H. L. (Harvey Leroy)
Object Type: Book
System: The UNT Digital Library
Metal Airplane Construction (open access)

Metal Airplane Construction

It has long been thought that metal construction of airplanes would involve an increase in weight as compared with wood construction. Recent experience has shown that such is not the case. This report describes the materials used, treatment of, and characteristics of metal airplane construction.
Date: May 1926
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Comments on Crankless Engine Types (open access)

Comments on Crankless Engine Types

This report describes the leading crankless engine types, which have appeared in recent years. These types include: the Mitchell crankless motor car engine and the German Michel engine.
Date: May 1928
Creator: unknown
Object Type: Report
System: The UNT Digital Library