Search Results

open access

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
Partner: UNT Libraries Government Documents Department
open access

Analysis of Heat and Compressibility Effects in Internal Flow Systems and High-Speed Tests of a Ram-Jet System

Description: Report presenting an analysis of the effects of heat and compressibility in the flow through the internal systems of aircraft. Equations and charts are developed whereby the flow characteristics at key stations in a typical internal system may be readily obtained.
Date: September 1942
Creator: Becker, John V. & Baals, Donald D.
Partner: UNT Libraries Government Documents Department
open access

The Propeller and Cooling-Air-Flow Characteristics of a Twin-Engine Airplane Model Equipped With NACA D(Sub S)-Type Cowlings and With Propellers of NACA 16-Series Airfoil Sections

Description: Report presenting an investigation in the 19-foot pressure tunnel to determine the nacelle drag, the cowling-air flow, and the propeller characteristics of a model of a high-performance military airplane. The model is fitted with NACA D(sub S)-type engine cowlings and with propellers embodying NACA 16-series airfoil sections. Results regarding the propeller characteristics, drag and cowling-air flow with the propeller removed, the effect of propeller on flow through cowling, and the influence o… more
Date: September 1944
Creator: McHugh, James G. & Pepper, Edward
Partner: UNT Libraries Government Documents Department
open access

Notes on the Effect of Surface Distortions on the Drag and Critical Mach Number of Airfoils

Description: "The effect of two-dimensional bumps and surface waviness on the pressure distribution over airfoils is considered. It is shown that the results of the analysis may be useful in evaluating the effects of accidental or intended surface distortions on the drag and critical Mach number of airfoils" (p. 1).
Date: September 1943
Creator: Allen, H. Julian
Partner: UNT Libraries Government Documents Department
open access

Diseases of sheep and goats.

Description: Describes the causes, symptoms, and treatment options for infectious and noninfectious diseases of sheep and goats.
Date: September 1943
Creator: Shahan, Maurice S. (Maurice Sommer), 1898- & Huffman, Ward T.
Partner: UNT Libraries Government Documents Department
open access

Army ground forces light aviation.

Description: "This manual is a guide for the military personnel of Army Ground Forces units who are concerned with organic light aviation. It describes the training, tactical employment, administration, maintenance, and supply of Army Ground Forces light aviation" (p. 1). The index begins on page 171.
Date: September 1947
Creator: United States. War Department.
Partner: UNT Libraries Government Documents Department
open access

Sinusoidal machine.

Description: "These instructions are published for the information and guidance of all personnel charged with the operation and maintenance of the McIntosh Electric Corporation Model No. 5018 of Sinusoidal Machine, Portable, for Galvanic, Faradic and Rapid Sinusoidal Currents, 110-Volt, 60-Cycle, Medical Department item No. 7132005 ... in the field. They contain information on the operation and maintenance of the equipment ...."
Date: September 1, 1944
Creator: United States. War Department.
Partner: UNT Libraries Government Documents Department
open access

Inspections and preventive maintenance services for buildings and structures, grounds, roads and pavements, railroads

Description: "This Technical Manual provides information to help the post engineer formulate and carry out a preventative maintenance program for buildings, structures, roads, runways, railroads, grounds, pest control, and related phases of real property maintenance."
Date: September 1946
Creator: United States. War Department.
Partner: UNT Libraries Government Documents Department
open access

Physiological aspects of flying.

Description: "The purpose of this manual is to endeavor to explain in everyday terms the various physical and physiological problems that arise during flying, and to give in detail the latest knowledge of proved solutions to these problems." (--Page 2.)
Date: September 25, 1943
Creator: United States. War Department.
Partner: UNT Libraries Government Documents Department
open access

Vocational teaching.

Description: "This manual is designed to help officers in the armed forces, enlisted men, or civilian instructors who are to teach for the first time." Discusses student characteristics, various aspects of teaching, and testing.
Date: September 30, 1943
Creator: United States. War Department.
Partner: UNT Libraries Government Documents Department
open access

Air-consumption parameters for automatic mixture control of aircraft engines

Description: From Introduction: "The purpose of this analysis was to investigate the use of function of intake-manifold temperature and pressure, exhaust back pressure, and engine speed in place of a ventri as a means of measuring engine air consumption and to determine if this function is suitable for automatic mixture control."
Date: September 1944
Creator: Shames, Sidney J.
Partner: UNT Libraries Government Documents Department
open access

Experimental Physics Division of the Los Alamos Project. Progress report No. 4

Description: Included in this semi-monthly report written in 1943 are progress with neutron beams, neutron absorption in enriched materials, equipment operation and maintenance reports of the cyclotron neutron source facility, and instrumentation maintenance activities of individuals in the cyclotron group. (GHT)
Date: September 1, 1943
Partner: UNT Libraries Government Documents Department
open access

Magnolia Oil Field, Columbia County, Arkansas: Part 1. Petroleum-Engineering Study; Part 2. Derivation and Application of Material-Balance Equations

Description: Report issued by the U.S. Bureau of Mines on studies conducted at the Magnolia oil fields in Columbia County, Arkansas. History, geology, and methods are presented. This report includes tables, graphs, maps, and illustrations.
Date: September 1943
Creator: Carpenter, Charles B.; Schroeder, H. J. & Cook, Alton B.
Partner: UNT Libraries Government Documents Department
open access

Petroleum-Engineering Study of the New Hope Oil Field, Franklin County, Texas

Description: Report issued by the Bureau of Mines regarding studies on the modern petroleum engineering techniques used in Franklin County, Texas. Drilling methods, and analysis of the core samples are presented. This report includes tables, and graphs.
Date: September 1949
Creator: Carpenter, Charles B.; Anderson, Kenneth F. & Cook, Alton B.
Partner: UNT Libraries Government Documents Department
open access

Laramie Sponge-Iron Pilot Plant

Description: Report issued by the Bureau of Mines over studies conducted on the pilot plant in Laramie County, Wyoming. As stated in the introduction, "the purpose of this report is to record information derived from recent experimental work that had as its objective the development and demonstration of one method of producing sponge iron" (p. 2). This report includes tables, illustrations, and photographs.
Date: September 1948
Creator: Johnston, T. L. & Mahan, W. M.
Partner: UNT Libraries Government Documents Department
open access

Investigation of Melrose Zinc-Lead District, Ottawa County, Oklahoma, and Cherokee County, Kansas

Description: Report issued by the Bureau of Mines over studies conducted on the Melrose zinc-lead deposits. Methods used in the investigation are listed. The characteristics of the zinc-lead deposits are presented also. This report includes tables, maps, and illustrations.
Date: September 1948
Creator: Knox, Clinton C.
Partner: UNT Libraries Government Documents Department
open access

A Process for the Production of Iron-Free Alum: Part 2. Pilot-Plant Development

Description: Report issued by the Bureau of Mines over studies conducted on the production processes of iron-free alum. This is the second part of the report, and focuses on the development and operation of a continuous pilot plant. This report includes tables, graphs, photographs, and illustrations.
Date: September 1948
Creator: Cunningham, William K.; Gee, Edwin A. & Heindl, R. August
Partner: UNT Libraries Government Documents Department
open access

Lead-Zinc-Silver in the Poughkeepsie District and Part of the Upper Uncompahgre and Mineral Point Districts, Ouray and San Juan Counties, Colorado

Description: Report issued by the Bureau of Mines over mining districts in Colorado. As noted in the introduction, "in this report the physical features, climate, and ore deposits of the districts are described, and a brief history of mining and production of lead, zinc, and silver is given" (p. 4). This report includes tables, illustrations, and maps.
Date: September 1949
Creator: Hazen, Scott W., Jr.
Partner: UNT Libraries Government Documents Department
open access

Diseases of raspberries and blackberries.

Description: Describes the characteristics of diseases that infect raspberries and blackberries as well as their respective treatments.
Date: September 1941
Creator: Dodge, B. O. (Bernard Ogilvie), 1872-1960.; Wilcox, R. B. (Raymond Boorman), 1889-1949. & Demaree, J. B. (Juan Brewer), 1885-
Partner: UNT Libraries Government Documents Department
Back to Top of Screen