Technical Report Archive and Image Library (TRAIL) - 196 Matching Results

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Carbon Tetrachloride Extinguisher of Electric Fires

Description: Report discussing "the extent and nature of the hazards to firefighters from gases and smoke resulting from the application of carbon tetrachloride extinguisher to electric arcs, burning insulation or fires such as may occur in electrical apparatus and machinery. The experiments described were made for the purpose of determining the nature of gases and smoke and ascertaining their toxic properties" (p. 1).
Date: July 1923
Creator: Katz, S. H.; Gleim, E. J. & Bloomfield, J. J.
Partner: UNT Libraries Government Documents Department

Performance of B. M. W. 185-Horsepower Airplane Engine

Description: This report deals with the results of a test made upon a B. M. W. Engine in the altitude chamber of the Bureau of Standards, where controlled conditions of temperature and pressure can be made to simulate those of the desired altitude. A remarkably low value of fuel consumption - 041 per B. H. P. hour - is obtained at 1,200 revolutions per minute at an air density of 0.064 pound per cubic foot and a brake thermal efficiency of 33 per cent and an indicated efficiency of 37 per cent at the above speed and density. In spite of the fact that the carburetor adjustment does not permit the air-fuel ratio of maximum economy to be obtained at air densities lower than 0.064, the economy is superior to most engines tested thus far, even at a density lower than 0.064, the economies superior to most engines tested thus far, even at a density (0.03) corresponding to an altitude of 25,000 feet. The brake mean effective pressure even at full throttle is rather low. Since the weight of much of the engine is governed more by its piston displacement than by the power developed, a decreased mean effective pressure usually necessitates increased weight per horsepower. The altitude performance of the engine is, in general, excellent, and its low fuel consumption is the outstanding feature of merit.
Date: January 1, 1923
Creator: Sparrow, S W
Partner: UNT Libraries Government Documents Department

"AM" gasoline cock.

Description: The "AM" cock was designed specially for gasoline pipes on vehicles using internal combustion engines (airplanes, airships, automobiles, tractors, battle "tanks", boats, etc.).
Date: February 1923
Partner: UNT Libraries Government Documents Department

Aeronautical record : no. 1 (to June, 1923)

Description: "...considerations have prompted us to pay special attention to the development of aeronautical industries and aerial navigation as a commercial enterprise and to publish an analytical review of events in the aeronautical world and of the attendant problems.".
Date: December 1923
Partner: UNT Libraries Government Documents Department

Graetzin special carburetor

Description: Corresponding to practical requirements, this carburetor (especially the smaller sizes) may be regarded as the smallest form of a float carburetor and is adapted for use with all small engines, including auxiliary bicycle and similar engines.
Date: February 1923
Partner: UNT Libraries Government Documents Department

Lecture on Aerodynamics

Description: This lecture deals with four main subjects: methods of studying air resistance, experimental aerodynamics, propellers and stability of airplanes.
Date: September 1923
Creator: Toussaint, A
Partner: UNT Libraries Government Documents Department

Static soaring flight over flat sea coasts

Description: Static soaring flight has hitherto been accomplished by means of two sources of energy: ascending air currents in the vicinity of obstacles and those produced by unequal heating. The latter has not yet been practically tested in soaring flight.
Date: November 1923
Creator: Georgii, W
Partner: UNT Libraries Government Documents Department

On the stability of oscillations of an airplane wing

Description: During a flight with a Van Berkel W. B. seaplane it was observed that the wing could perform violent oscillations. A theoretical and experimental investigation led to the conclusion, that in some cases an unstable oscillation of the wing-aileron system under the influence of the elastic and aerodynamic forces is possible without further external causes.
Date: August 1923
Creator: Koning, C & Von Baumhauer, A G
Partner: UNT Libraries Government Documents Department

Carburetion in aviation engines

Description: This report tries to solve the problem of supplying the engine cylinders with a mixture of fuel and air in the right ratio to obtain the greatest power from the engine with the least consumption of fuel.
Date: August 1, 1923
Creator: Poincaré
Partner: UNT Libraries Government Documents Department

Replacing the weight of materials consumed on airships

Description: Two methods to replace the weight of gas lost on long airship flights are discussed: condensing the water of combustion and thermic sustentation. In the present article we will discuss the first method, leaving the second to be examined in a subsequent article.
Date: June 1, 1923
Creator: Crocco, G A
Partner: UNT Libraries Government Documents Department

Vorticism in aeronautics

Description: Since the war there has been a considerable advance in knowledge on the subject of the airfoil and its behavior. The theory is now sufficiently advanced to make it possible to predict and to calculate certain results which previously could only be attained by direct experiment. The vortex theory receives special attention.
Date: August 1, 1923
Creator: Sayers, W H
Partner: UNT Libraries Government Documents Department