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Visual Studies of Cylinder Lubrication [Part] 1: The Lubrication of the Piston Skirt

Description: Report describes the lubrication characteristics of an aircraft-type piston as visually studied in a V-type engine with a glass cylinder. Information about the movement of the piston, the piston rings, and the oil-control rings and their effect on lubrication is included.
Date: September 1945
Creator: Shaw, Milton C. & Nussdorfer, Theodore
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

[Book Card: Mary Ray, September 18, 1945]

Description: North Texas State Teachers College student book card documenting grades for Mary Lou Ray McCain including student registration information. On the back of the book card is a registration receipt dated, September 18, 1945.
Date: September 18, 1945
Creator: North Texas State Teachers College
Item Type: Refine your search to only Text
Partner: UNT Libraries Special Collections
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[Schedule: Mary Lou Ray, August 18, 1945]

Description: North Texas State Teachers College schedule card documenting registered classes for Mary Lou Ray McCain during the Fall semester, 1945, including information about the subject, teachers, rooms, and hours. The schedule card is dated Sept 18, 1945.
Date: September 18, 1945
Creator: North Texas State Teachers College
Item Type: Refine your search to only Text
Partner: UNT Libraries Special Collections
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Allowable temperature rise in tubes of the piles: Precautions against boiling

Description: In the design of the pile, it was considered advisable never to impose so great a heat load on any tube that the available header pressure would be insufficient to sweep the tube free of vapor if boiling should accidentally be initiated in the tube. Figures are given for the maximum temperature rises permissible, as function of header pressure and orifice diameter.
Date: September 27, 1945
Creator: Woods, W. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of Iron in Thorium, Beryllium, and Cerium

Description: Introduction. the colorimetric determination of iron based on the formation of the colored ferrous-1,10-phenanthroline complex has been used successfully by a number of investigators. In this technical report, its adaptation to the routine determination of iron in cerium, thorium, and beryllium metals and their compounds is described.
Date: September 10, 1945
Creator: Ericson, R. P & Fornefeld, E. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sweeping of Fission Gases from Solutions of U and Plutonium

Description: Technical report describing two experiments performed to compare the amounts of fission gases swept out of UNH solution with those amounts swept out of PU solution under idential condiditons. The charge wire technique was used. The essential date and the results are given in tables in the report.
Date: September 4, 1945
Creator: Adams, R. M. & Finkelstein, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Solubility of Uranyl Oxalate and the Existence of Undissociated Uranyl Oxalate in Solution

Description: Abstract: "The solubility of the solid, UO2C2O4 x rH2O, was measured at various acid and uranyl nitrate concentrations. The results of the measurements prove the existence of the uranyl oxalate complex - UO2C2O4, in solutions containing excess UO2^2."
Date: September 8, 1945
Creator: Pimentel, George C. & Stevenson, F. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Wind Tunnel Investigation of Control-Surface Characteristics 23: A 0.25-Airfoil-Chord Flap With Tab Having a Chord Twice the Flap Chord on an NACA 0009 Airfoil

Description: Report presenting wind-tunnel tests to determine the aerodynamic section characteristics of an NACA 0009 airfoil with a plain flap with a chord 25 percent of the airfoil chord and a balancing tab with a chord 50 percent of the airfoil chord or 200 percent of the flap chord so linked that the tab would deflect at a given rate with respect to the flap. Three linkage ratios were tested on the model. Results regarding theory and test results including lift and hinge moments are provided.
Date: September 1945
Creator: Spearman, M. Leroy
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Approximate Determination of the Power Required to Move Control Surfaces as Related to Control-Booster Design

Description: "As a part of a general investigation of control boosters, preliminary calculations were made to indicate the sizes of control boosters necessary to move the controls of airplanes of various sizes. The analysis was based on the assumption that the controls were moved with a rapidity and amplitude equal to that measured with a fighter airplane in simulated combat. A corollary purpose consisted in determining the effect on reducing booster-power unit size of incorporating an energy accumulator in… more
Date: September 1945
Creator: Johnson, Harold I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Calculation of the Aileron and Elevator Stick Forces and Rudder Pedal Forces for the Bell XP-83 Airplane (Project MX-511) in Spins

Description: "Aileron and elevator stick forces and rudder pedal forces for the Bell XP-83 airplane in spins have been calculated. The results indicate that the aileron and elevator stick forces may be excessive unless some suitable booster or more highly balanced control surfaces are used. The pilot will be able to move the surfaces only slightly from their normal floating locations" (p. 1).
Date: September 1945
Creator: Stone, Ralph W., Jr. & Schneiter, Leslie E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effect of Wing Modifications on the Longitudinal Stability of a Tailless All-Wing Airplane Model

Description: Report presenting an investigation of the power-off longitudinal stability characteristics of a tailless all-wing airplane model with various wing modifications in the free-flight tunnel. The results indicated that changes in the tip plan form or rotation of the wing tips did not appreciably reduce the instability at high lift coefficients.
Date: September 1945
Creator: Seacord, Charles L., Jr. & Ankenbruck, Herman O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Method for Determining Oil-Cooler Performance Requirements in Series Operation

Description: Report presenting an equation by which the overall performance of any number of oil coolers when operating in series can be related to their performance when operating singly. A comparison was made of the experimental overall performance of two conventional type 15-inch-diameter oil coolers, selected according to the analysis and equipped first with spring-loaded valves and then with rotary valves, with the desired overall performance.
Date: September 1945
Creator: Boyet, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Effect of High-Resistance Ignition Cable on the Erosion of Spark-Plug Electrodes

Description: Report discussing testing to determine the effects that using high-resistance ignition cable has on erosion of spark-plug electrodes. Erosion was found to be reduce about 70 percent when high-resistance ignition cable was used in place of standard cable.
Date: September 1945
Creator: Swett, Clyde C., Jr. & Rodgers, Franklin A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Effect of Carburetor Throttle Settings on the Velocity Distribution at the Outlet of a Vaned and Vaneless Supercharger Inlet Elbow

Description: Report presenting a study to determine the effect of a carburetor and an inlet elbow on the flow at the supercharger impeller inlet. Tests were conducted on a commercial vaned supercharger inlet-elbow assembly to determine the effect on the velocity distribution at the elbow outlet. Results indicated that the velocity profile obtained at the outlet of the vaneless elbow was better than that with the vaned elbow at all throttle settings.
Date: September 1945
Creator: Guentert, Donald C. & Baas, Edmund J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Farm buildings from home-grown timber in the South.

Description: Discusses the use of timber from farm-owned woodlands for lumber manufacture. Suggests the use of home-grown timber to solve the problem of poor rural housing by using it and other native materials to improve farm buildings, and as a means to create cash income. Describes successful community programs in various southern states including Texas.
Date: September 1945
Creator: Williams, W. K.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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Irrigated pastures for forage production and soil conservation.

Description: Discusses the importance of increasing farm productivity to meet needs created by World War II. Provides suggestions for the establishment and management of pastures, including irrigation, fertilization, and the use of grasses and legumes.
Date: September 1945
Creator: Hamilton, J. G. (James Guy), b. 1891.; Brown, Grover F., 1905-; Tower, Harold E. (Harold Everett), 1904- & Collins, Wilkie, Jr.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

The Effect of Inlet Temperature and Pressure on the Efficiency of Single-Stage Impulse Turbine Having a 13.2-Inch Pitch-Line Diameter Wheel

Description: From Summary: "Efficiency tests have been conducted on a single-stage impulse turbine having a 13.2-inch pitch-line diameter wheel and a cast nozzle diaphragm over a range of turbine speeds from 3000 to 17,000 rpm, pressure ratios from 1.5 to 5.0, inlet total temperatures from 1200 deg to 2000 deg R, and inlet total pressures from 18 to 59 inches of mercury absolute. The effect of inlet temperature and pressure on turbine efficiency for constant pressure ration and blade-to-jet speed ration is … more
Date: September 1945
Creator: Chanes, Ernest R. & Carman, L. Robert
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effect of Maximum Cruise-Power Operation at Ultra-Lean Mixture and Increased Spark Advance on the Mechanical Condition of Cylinder Components

Description: "A continuous 50-hour test was conducted to determine the effect of maximum cruise-power operation at ultra-lean fuel-air mixture and increased spark advance on the mechanical conditions of cylinder components. The test was conducted on a nine-cylinder air-cooled radial engine at the following conditions:brake horsepower, 750; engine speed, 1900 rpm; brake mean effective pressure, 172 pounds per square inch; fuel-air ratio, 0.052; spark advance, 30 deg B.T.C.; and maximum rear-spark-plug-bushin… more
Date: September 27, 1945
Creator: Harris, Herbert B.; Duffy, Robert T. & Erwin, Robert D., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Performance of a Single-Stage Impulse Turbine Having an 11.0-Inch Pitch-Line Diameter Wheel with Cast Airfoil-Shaped and Bent Sheet-Metal Nozzle Blades

Description: Report presenting efficiency tests on a single-stage gas turbine with an 11.0-inch pitch-line diameter wheel and a nozzle diaphragm with cast airfoil-shaped nozzle blades using atmospheric air as the driving fluid. A comparison is made with the same turbine but with different nozzle blades. Results regarding the efficiency curves and further information about velocity effects are provided.
Date: September 1945
Creator: Gabriel, David S. & Carman, L. Robert
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Static-Thrust Tests of Six Rotor-Blade Designs on a Helicopter in the Langley Full-Scale Tunnel

Description: Report discusses the results of testing of measurements of the static-thrust performance of six sets of rotor blades mounted on a helicopter fuselage. The blades differed in surface condition, pitch distribution, airfoil section, plan form, and solidarity. Results indicated that rotor-blade surface condition is important for performance and the optimum performance will only be obtained if the blades have a smooth, accurately contoured surface that will not deform during flight.
Date: September 1945
Creator: Dingeldein, Richard C. & Schaefer, Raymond F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Charts for Determining Jet-Boundary Corrections for Complete Models in 7- by 10-Foot Closed Rectangular Wind Tunnels

Description: Report presenting calculations of numerical values of the jet-boundary corrections to the angle of attack and the induced-drag, rolling-moment, and yawing-moment coefficients for complete airplane or wing models in 7- by 10-foot closed rectangular wind tunnels. The results showed that the wing area was the most important variable, as has usually been assumed in previous calculations. When the corrections were based on wing area, the effect of most of the other variables was negligible.
Date: September 1945
Creator: Gillis, Clarence L.; Polhamus, Edward C. & Gray, Joseph L., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Impact Properties at Different Temperatures of Flush-Riveted Joints for Aircraft Manufactured by Various Riveting Methods

Description: Report presenting the results of an investigation to determine the impact properties of flush-riveted joints manufactured by different riveting methods. Testing occurred on a pendulum impact machine at temperatures of 70, -50, and -70 degrees Fahrenheit using rivets made of aluminum alloy A17S-T and plates of aluminum alloy 24S-T.
Date: September 1945
Creator: Maney, G. A. & Wyly, L. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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