Collection
Serial/Series Title
NACA Technical Memorandums
47
NACA Technical Notes
26
Farmers' bulletin (United States. Department of Agriculture)
12
United States Bureau of Mines Reports
9
NACA Aircraft Circulars
7
NACA Technical Reports
5
Farmers' bulletin (United States. Dept. of Agriculture)
4
Report of investigations (United States. Bureau of Mines)
4
Bulletin (United States. Bureau of Mines)
2
Bulletin (Texas. Department of Agriculture)
1
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194 Matching Results
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Abacus for the Reduction of English Measures to the Metric System and Vice Versa
This report presents a description of an abacus with three scales: one for English measures, one for metric measures, and one with the "points of reduction", as well as construction details. There is also a detailed description on how to use the abacus.
Date:
July 1921
Creator:
Tenani, Mario
Object Type:
Report
System:
The UNT Digital Library
Advertising Attachment for Scales.
Patent for improvements in advertising attachments for scales to "provide an attachment of the character specified, wherein a series of display members are provided, mounted to be moved into different positions, to bring different matter into different positions, and controlled to movement by the stepping onto the weighing platform of the one to be weighed." (lines 11-18)
Date:
July 13, 1920
Creator:
Funk, Arthur Neal
Object Type:
Patent
System:
The Portal to Texas History
Aerial navigation by dead reckoning
Report discussing the problem to be solved, as presented to the pilot or observer of an aircraft, is as follows: The aircraft starting from A must land at B, the only data being the speed of the airplane, the altitude and the orientation D of the course. The above data would be amply sufficient, were it not for the fact that the airplane is constantly subjected to a wind of variable direction and strength.
Date:
July 1922
Creator:
Maffert, Pierre
Object Type:
Report
System:
The UNT Digital Library
Aero Dopes and Varnishes
Report discussing before proceeding to discuss the preparation of dope solutions, it will be necessary to consider some of the essential properties which should be possessed of a dope film, deposited in and on the surface of an aero fabric. The first is that it should tighten the material and second it should withstand weathering.
Date:
July 1927
Creator:
Britton, H. T. S.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamics and Ballistics
Ballistics is a science hundreds of years old and this report is an attempt to show how these older principles can be used in the newer science of aerodynamics.
Date:
July 1922
Creator:
Burzio, Filippo
Object Type:
Report
System:
The UNT Digital Library
Airplane Stability Calculations and Their Verification by Flight Tests
For some time, the designers of airplanes have begun to occupy themselves with the question of longitudinal stability. In their quest to simplify calculation and data collection, the designers have attached the greatest importance to the coefficient of initial longitudinal stability. In this study a diagram was constructed from the data of the tunnel tests, which depends neither on the position of the center of gravity nor of the angle of deflection of the elevators. This diagram is constructed by means of straight lines drawn through the metacenters of the complete airplane, in a direction parallel to the tangents to the polar of the airplane relative to a system of axes fixed with reference to the airplane.
Date:
July 1922
Creator:
Rota, Augusto
Object Type:
Report
System:
The UNT Digital Library
The Amiot S.E.C.M. 110 C.1 : A Single-Seat Pursuit Monoplane
Circular presenting a description of the Amiot S.E.C.M. 110 C.1, which is a single-seat pursuit monoplane. Some of the design principles that the aircraft was built from are provided. A description of the design, components, dimensions, flight characteristics, and photographs are provided.
Date:
July 1929
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Analysis of Aircraft Structures as Space Frameworks: Method Based on the Forces in the Longitudinal Members
The following examples do not take up the discussion of viewpoints to be heeded in determining the design of a framework for given external conditions. Rather they are methods for determining the forces in airplane fuselages and wings, though similar considerations are applied to certain simple cases of a different kind. The object of this treatise is to summarize and amplify these considerations from definite viewpoints.
Date:
July 1929
Creator:
Wagner, Herbert
Object Type:
Report
System:
The UNT Digital Library
Antileak Composition.
Patent for improvements in antileak composition in order to prevent leaks in liquid holding containers like radiators, boilers, etc.
Date:
July 5, 1921
Creator:
Shrum, Will N.
Object Type:
Patent
System:
The Portal to Texas History
Attachment for Broadcast Headers.
Patent for harvesting machines that provisions for adjustable attachments and elevator mechanisms used to head maize or similar grain crops.
Date:
July 28, 1920
Creator:
Price, Filmore M.
Object Type:
Patent
System:
The Portal to Texas History
Attachment for Rotaries.
Patent for rotary well-drilling machinery where the "ring or bushing to rotate independently of the table and the present invention is directed to means for accomplishing the rotating effect." (line 24-27)
Date:
July 20, 1920
Creator:
Johnston, Horace G.
Object Type:
Patent
System:
The Portal to Texas History
Autogenous Welding in Airplane Construction
Autogenous welding is discussed and various methods of testing those welds are presented.
Date:
July 1929
Creator:
Kuchel, Ludwig
Object Type:
Report
System:
The UNT Digital Library
The "Autogiro"
Report presenting a description of the autogiro, which is a flying machine built and designed in Spain. A history of the device and the reasons why it is safer and more stable than a typical aircraft are provided.
Date:
July 1923
Creator:
Moreno-Caracciolo, M.
Object Type:
Report
System:
The UNT Digital Library
Automatic Signal-Actuating Mechanism for Railways
Patent for an improved signal actuating mechanisms for railways. When the train cars reach an operating mechanism, a flag will be raised where pedestrians or cars cross, and cause a signal to be repeated until the train passes.
Date:
July 20, 1920
Creator:
Bashara, Samuel Farris
Object Type:
Patent
System:
The Portal to Texas History
Automatic Trough-Valve.
Patent for improvements in animal watering troughs that has an automatic float control valve in connection with the trough.
Date:
July 20, 1920
Creator:
Striegler, Fritz
Object Type:
Patent
System:
The Portal to Texas History
Automobile-Spring.
Patent for improvements in automobile-springs, specifically a means of suspending the front and rear springs of an automobile and cushioning and absorbing shocks.
Date:
July 5, 1921
Creator:
Jones, George Chester & Jones, George C.
Object Type:
Patent
System:
The Portal to Texas History
Automobile Wheel Rim.
Patent for an automobile rim to make the mounting or demounting of a tire easier without any tools.
Date:
July 18, 1922
Creator:
Nichols, George Thomas
Object Type:
Patent
System:
The Portal to Texas History
Aviation in the Belgian Congo
The establishment of air service in the Belgian Congo is detailed in this report. The airplanes, landing fields, and air routes are all discussed.
Date:
July 1922
Creator:
van Crombrugge, A.
Object Type:
Report
System:
The UNT Digital Library
The Avro "Gosport," 504 R: A New Training Airplane
Circular describing the Avro Gosport 504 R, which is a new training airplane that is lighter than other Avro training airplanes but is strong enough to withstand rough handling that may be encountered in training. Details of the fuselage, construction, ailerons, tail, struts, landing gear, fuel tanks, performance, characteristics, and photographs are provided.
Date:
July 1927
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Bailer.
Patent for improved bailer for deep wells (e.g., oil wells), cheaper to use and manufacture, with a better delivery gate and improved method for triggering gate closure upon bailer withdrawal.
Date:
July 26, 1921
Creator:
Swartz, Ira
Object Type:
Patent
System:
The Portal to Texas History
Balloon Flight and Atmospheric Electricity
"The air is known to be charged with electricity (chiefly positive) with reference to the earth, so that its potential increases with the altitude and the difference in potential between two points in the same vertical line, divided by the distance between them, gives a value called the "potential gradient," which may vary greatly with the altitude, the nature of the ground and the atmospheric conditions" (p. 1).
Date:
July 1924
Creator:
Herrera, Emilio
Object Type:
Report
System:
The UNT Digital Library
Beacon Lights for Air Traffic
A beacon light manufactured by the Julius Pintsch Company is described and the arrangement of these lights on a landing field is discussed.
Date:
July 1922
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Bernard 20 C.1 (French): A Single-Seat Pursuit Monoplane
Circular presenting a description of the Bernard 20 C.1, which is made of wood and has four main parts: a one-piece wing with a fuselage in the middle, a rear section with the tail surfaces, an engine mount, and a landing gear.
Date:
July 1929
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Blackburn "Sprat": A Training Airplane Convertible Into Landplane or Seaplane
The Sprat is similar the Blackburn Swift and Dart models but is designed as a trainer. It is powered with a smaller 275 HP Rolls-Royce Falcon engine. It is a 2 seat biplane with equal sized upper and lower wings. It can quickly convert from a land to a seaplane.
Date:
July 1926
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library