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Metering Characteristics of Carburetors (open access)

Metering Characteristics of Carburetors

Report presents the results of an extensive experimental investigation of the performance of different types of carburetors as effecting the maintenance under all conditions of correct ratio between the weights of fuel and air. It also gives a description of the Bureau of Standards carburetor test plant, test equipment and measuring instruments used to determine the metering characteristics of carburetors.
Date: 1919
Creator: Tice, Percival S. & Dickinson, H. C.
Object Type: Report
System: The UNT Digital Library
The Limiting Velocity in Falling from a Great Height (open access)

The Limiting Velocity in Falling from a Great Height

The purpose of this report is to give a simple treatment of the problem of calculating the final or limiting velocity of an object falling in vertical motion under gravity in a resisting medium. The equations of motion are easily set up and integrated when the density of the medium is constant and the resistance varies as the square of the velocity. The results show that the fundamental characteristics of the vertical motion under gravity in a resisting medium is the approach to a terminal or limiting velocity, whether the initial downward velocity is less or greater than the limiting velocity. This method can be used to calculate the terminal velocity of a bomb trajectory.
Date: 1919
Creator: Wilson, Edwin Bidwell
Object Type: Report
System: The UNT Digital Library
The Design of Wind Tunnels and Wind Tunnel Propellers (open access)

The Design of Wind Tunnels and Wind Tunnel Propellers

Report discusses the theory of energy losses in wind tunnels, the application of the Drzewiecki theory of propeller design to wind tunnel propellers, and the efficiency and steadiness of flow in model tunnels of various types.
Date: 1919
Creator: Warner, Edward P.; Norton, F. H. & Hebbert, C. M.
Object Type: Report
System: The UNT Digital Library
Comparison of Alcogas Aviation Fuel With Export Aviation Gasoline (open access)

Comparison of Alcogas Aviation Fuel With Export Aviation Gasoline

Mixtures of gasoline and alcohol when used in internal combustion engines designed for gasoline have been found to possess the advantage of alcohol in withstanding high compression without "knock" while retaining advantages of gasoline with regard to starting characteristics. Test of such fuels for maximum power-producing ability and fuel economy at various rates of consumption are thus of practical importance, with especial reference to high-compression engine development. This report discusses the results of tests which compares the performance of alcogas with x gasoline (export grade) as a standard.
Date: November 25, 1919
Creator: Gage, V. R.; Sparrow, S. W. & Harper, D. R.
Object Type: Report
System: The UNT Digital Library
Temperatures in Spark Plugs Having Steel and Brass Shells (open access)

Temperatures in Spark Plugs Having Steel and Brass Shells

"Brass has often been assumed superior to steel for spark plug shells because of its greater heat conductivity. The measurements described in this report prove the contrary, showing that the interior of a spark plug having a brass shell is from 50 degrees to 150 degrees c. (90 degrees to 270 degrees f.) hotter than that of a similar steel plug. It is to be concluded that steel is to be preferred to brass for spark plug shells. This report embodies the results of measurements taken of electrodes and a comparison of brass and steel insulators of spark plugs while they were in actual operation" (p. 5).
Date: 1919
Creator: Cragoe, C. S.
Object Type: Report
System: The UNT Digital Library
General Analysis of Airplane Radiator Problems (open access)

General Analysis of Airplane Radiator Problems

Report embodies the results of a very extensive research, both theoretical and experimental, into the problems involved in the dissipation of heat by means of the airplane radiator.
Date: 1919
Creator: Dickinson, H. C.; James, W. S. & Kleinschmidt, R. V.
Object Type: Report
System: The UNT Digital Library
General Discussion of Test Methods for Radiators (open access)

General Discussion of Test Methods for Radiators

Report describes the methods and apparatus developed and used in the extensive experimental research into the problems involved in the dissipation of heat by means of the airplane radiator.
Date: 1919
Creator: Dickinson, H. C.; James, W. S. & Brown, W. B.
Object Type: Report
System: The UNT Digital Library
Airplane Dopes and Doping (open access)

Airplane Dopes and Doping

Report details some examples of dopes and doping on airplanes and balloons and the various properties of different materials. Topics covered include cellulose nitrate dopes, cellulose acetate dopes, dope covers, application of dopes, and fireproof dopes
Date: 1919
Creator: Smith, W. H.
Object Type: Report
System: The UNT Digital Library

Maravillas Canyon Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date: 1919
Creator: United States. Army. Corps of Engineers.
Object Type: Map
System: The Portal to Texas History

Fayettsville Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date: 1919
Creator: United States. Army. Corps of Engineers.
Object Type: Map
System: The Portal to Texas History

Deepwater Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:31680
Date: 1919
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Canutillo Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date: 1919
Creator: United States. Army. Corps of Engineers.
Object Type: Map
System: The Portal to Texas History

Palo Pinto Sheet

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date: 1919
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Crosby Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:31680
Date: 1919
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Weatherford Sheet

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date: 1919
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Morgan Point Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:31680
Date: 1919
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Royse City Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date: 1919
Creator: United States. Army. Corps of Engineers.
Object Type: Map
System: The Portal to Texas History

Clodine Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:31680
Date: 1919
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Fowlkes Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:31680
Date: 1919
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Bone Spring Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date: 1919
Creator: United States. Army. Corps of Engineers.
Object Type: Map
System: The Portal to Texas History

Aldine Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:31680
Date: 1919
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Clodine Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:31680
Date: 1919
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Eastland Sheet

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date: 1919
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Valentine Sheet

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date: 1919
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History