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 Decade: 1910-1919
 Collection: Technical Report Archive and Image Library
Aeronautic Power Plant Investigations

Aeronautic Power Plant Investigations

Date: January 1, 1917
Creator: Dickinson, H C
Description: Report presents the design of radiators, spark plugs and test equipment used to test the performance of aeronautic engines at high altitudes.
Contributing Partner: UNT Libraries Government Documents Department
Airplane dopes and doping

Airplane dopes and doping

Date: January 1, 1919
Creator: Smith, W H
Description: Cellulose acetate and cellulose nitrate are the important constituents of airplane dopes in use at the present time, but planes were treated with other materials in the experimental stages of flying. The above compounds belong to the class of colloids and are of value because they produce a shrinking action on the fabric when drying out of solution, rendering it drum tight. Other colloids possessing the same property have been proposed and tried. In the first stages of the development of dope, however, shrinkage was not considered. The fabric was treated merely to render it waterproof. The first airplanes constructed were covered with cotton fabric stretched as tightly as possible over the winds, fuselage, etc., and flying was possible only in fine weather. The necessity of an airplane which would fly under all weather conditions at once became apparent. Then followed experiments with rubberized fabrics, fabrics treated with glue rendered insoluble by formaldehyde or bichromate, fabrics treated with drying and nondrying oils, shellac, casein, etc. It was found that fabrics treated as above lost their tension in damp weather, and the oil from the motor penetrated the proofing material and weakened the fabric. For the most part the film of ...
Contributing Partner: UNT Libraries Government Documents Department
Airplane Stress Analysis

Airplane Stress Analysis

Date: January 1, 1918
Creator: Zahm, A F
Description: Report presents stress analysis of individual components of an airplane. Normal and abnormal loads, sudden loads, simple stresses, indirect simple stresses, resultant unit stress, repetitive and equivalent stress, maximum steady load and stress are considered.
Contributing Partner: UNT Libraries Government Documents Department
Alaskan Coal Problems

Alaskan Coal Problems

Date: 1911
Creator: Fisher, Walter L.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910: Part 1. -- Analyses

Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910: Part 1. -- Analyses

Date: 1913
Creator: Lord, N. W.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910 Part 2. Descriptions of Samples

Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910 Part 2. Descriptions of Samples

Date: 1913
Creator: Lord, N. W.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analyses of Coals Purchased by the Government During the Fiscal Years 1908-1915

Analyses of Coals Purchased by the Government During the Fiscal Years 1908-1915

Date: 1916
Creator: Pope, George S.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1911 to 1913

Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1911 to 1913

Date: 1914
Creator: Fieldner, Arno Carl
Description: Report issued by the Bureau of Mines over analyses of coal samples collected from 1911 to 1913. The analyses and descriptions of the samples are presented and discussed. This report includes tables, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1913 to 1916

Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1913 to 1916

Date: 1918
Creator: Fieldner, Arno C.
Description: Index begins on page 457.
Contributing Partner: UNT Libraries Government Documents Department
Analysis of Alternating-Current Waves by the Method of Fourier, with Special Reference to Methods of Facilitating the Computations

Analysis of Alternating-Current Waves by the Method of Fourier, with Special Reference to Methods of Facilitating the Computations

Date: 1913
Creator: Grover, Frederick W.
Description: Report issued by the Bureau of Standards over analysis of alternating currents. These currents are applied with the Fourier method. Descriptions of the method, and the results are presented. This report includes tables, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department