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[54th Annual Convention of the State Fire Association #1]

Photograph of the attendees of the 54th Annual Convention of the State Fire Association in San Angelo, Texas. The group is in front of a large stone building decorated with red, white, and blue banners. The text, "54th Annual Convention State Fire Association San Angelo, Tex. June, 1930" is written on the front of the photo.
Date: June 1930
Creator: unknown
Object Type: Photograph
System: The Portal to Texas History

[54th Annual Convention of the State Fire Association #2]

Photograph of the attendees of the 54th Annual Convention of the State Fire Association in San Angelo, Texas. The group is in front of a large stone building decorated with red, white, and blue banners. The text, "54th Annual Convention State Fire Association San Angelo, Tex. June, 1930" is written on the front of the photo.
Date: June 1930
Creator: unknown
Object Type: Photograph
System: The Portal to Texas History
Amarillo Sunday News-Globe (Amarillo, Tex.), Vol. 21, No. 169, Ed. 1 Sunday, June 1, 1930 (open access)

Amarillo Sunday News-Globe (Amarillo, Tex.), Vol. 21, No. 169, Ed. 1 Sunday, June 1, 1930

Weekly newspaper from Amarillo, Texas that includes local, state, and national news along with advertising.
Date: June 1, 1930
Creator: Howe, Gene A.
Object Type: Newspaper
System: The Portal to Texas History
The "Avro Trainer" Airplane (British): A Training Biplane (open access)

The "Avro Trainer" Airplane (British): A Training Biplane

Circular presenting a description of the Avro Trainer airplane, which is primarily intended for pilots in training and is designed to be easy to use, including large, comfortable cockpits, good view, effective windshields, and wide track. Details of the design, flight characteristics, drawings, and photographs are provided.
Date: June 1930
Creator: unknown
Object Type: Report
System: The UNT Digital Library
The Breckenridge American (Breckenridge, Tex.), Vol. 10, No. 156, Ed. 1, Sunday, June 1, 1930 (open access)

The Breckenridge American (Breckenridge, Tex.), Vol. 10, No. 156, Ed. 1, Sunday, June 1, 1930

Daily newspaper from Breckenridge, Texas that includes local, state and national news along with extensive advertising.
Date: June 1, 1930
Creator: Hodges, Wesley D.
Object Type: Newspaper
System: The Portal to Texas History
The Brownsville Herald (Brownsville, Tex.), Vol. 38, No. 233, Ed. 1 Sunday, June 1, 1930 (open access)

The Brownsville Herald (Brownsville, Tex.), Vol. 38, No. 233, Ed. 1 Sunday, June 1, 1930

Daily newspaper from Brownsville, Texas that includes local, state and national news along with advertising.
Date: June 1, 1930
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Calibration and lag of a Friez type cup anemometer (open access)

Calibration and lag of a Friez type cup anemometer

"Tests on a Friez type cup anemometer have been made in the variable density wind tunnel of the Langley Memorial Aeronautical Laboratory to calibrate the instrument and to determine its suitability for velocity measurements of wind gusts. The instrument was calibrated against a Pitot-static tube placed directly above the anemometer at air densities corresponding to sea level, and to an altitude of approximately 6000 feet. Air-speed acceleration tests were made to determine the lag in the instrument reading. The calibration results indicate that there should be an altitude correction. It is concluded that the cup anemometer is too sluggish for velocity measurements of wind gusts" (p. 1).
Date: June 1930
Creator: Pinkerton, Robert M.
Object Type: Report
System: The UNT Digital Library
Catalog of Abilene Christian College, 1930-1931 (open access)

Catalog of Abilene Christian College, 1930-1931

Catalog describes the governance, history, course offerings, and campus life of Abilene Christian College in Abilene, Texas.
Date: June 1930
Creator: Abilene Christian College
Object Type: Book
System: The Portal to Texas History
Catalog of North Texas State Teachers College: 1930-1931 (open access)

Catalog of North Texas State Teachers College: 1930-1931

Catalog for North Texas State College includes information about class offerings as well as general information about the school (academic calendar, list of officers and faculty, admissions and degree requirements, financial information, etc.).
Date: June 1930
Creator: North Texas State Teachers College
Object Type: Book
System: The UNT Digital Library
Catalogue of Howard Payne College, 1929-1930 (open access)

Catalogue of Howard Payne College, 1929-1930

Catalogue describes the history, governance, admission requirements, course offerings, and campus life of Howard Payne College in Brownwood, Texas.
Date: June 1930
Creator: Howard Payne College (Brownwood, Tex.)
Object Type: Book
System: The Portal to Texas History
Chickasha Daily Express (Chickasha, Okla.), Vol. 31, No. 107, Ed. 1 Sunday, June 1, 1930 (open access)

Chickasha Daily Express (Chickasha, Okla.), Vol. 31, No. 107, Ed. 1 Sunday, June 1, 1930

Daily newspaper from Chickasha, Oklahoma that includes local, state and national news along with advertising.
Date: June 1, 1930
Creator: Pool, J. Edwin
Object Type: Newspaper
System: The Gateway to Oklahoma History
Chronicles of Oklahoma, Volume 8, Number 2, June 1930 (open access)

Chronicles of Oklahoma, Volume 8, Number 2, June 1930

Quarterly publication containing articles, book reviews, photographs, illustrations, and other works documenting Oklahoma history and preservation.
Date: June 1930
Creator: Oklahoma Historical Society
Object Type: Journal/Magazine/Newsletter
System: The Gateway to Oklahoma History
The Cierva "Autogiro" Mark III (British): Armstrong-Siddeley "Genet Major" Engine (open access)

The Cierva "Autogiro" Mark III (British): Armstrong-Siddeley "Genet Major" Engine

Circular describing the Cierva Autogiro Mark III. Details of the constructional features, characteristics, drawings, and photographs are provided.
Date: June 1930
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Cleburne Morning Review (Cleburne, Tex.), Vol. [25], No. 208, Ed. 1 Sunday, June 1, 1930 (open access)

Cleburne Morning Review (Cleburne, Tex.), Vol. [25], No. 208, Ed. 1 Sunday, June 1, 1930

Daily newspaper from Cleburne, Texas that includes local, state, and national news along with advertising.
Date: June 1, 1930
Creator: Dean, J. Lawrence
Object Type: Newspaper
System: The Portal to Texas History
The Cleveland County Democrat-News (Norman, Okla.), Vol. 7, No. 44, Ed. 1 Sunday, June 1, 1930 (open access)

The Cleveland County Democrat-News (Norman, Okla.), Vol. 7, No. 44, Ed. 1 Sunday, June 1, 1930

Semi-weekly newspaper from Norman, Oklahoma that includes local, state, and national news along with advertising.
Date: June 1, 1930
Creator: Kerrigan, Edwin S.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Contribution to the Theory of Propeller Vibrations (open access)

Contribution to the Theory of Propeller Vibrations

This report presents a calculation of the torsional frequencies of revolving bars with allowance for the air forces. Calculation of the flexural or bonding frequencies of revolving straight or tapered bars in terms of the angular velocity of revolution. Calculation on the basis of Rayleigh's principle of variation. There is also a discussion of error estimation and the accuracy of results. The author then provides an application of the theory to screw propellers for airplanes and the discusses the liability of propellers to damage through vibrations due to lack of uniform loading.
Date: June 1930
Creator: Liebers, F.
Object Type: Report
System: The UNT Digital Library
The Cuero Record (Cuero, Tex.), Vol. 36, No. 130, Ed. 1 Sunday, June 1, 1930 (open access)

The Cuero Record (Cuero, Tex.), Vol. 36, No. 130, Ed. 1 Sunday, June 1, 1930

Daily newspaper from Cuero, Texas that includes local, state, and national news along with advertising.
Date: June 1, 1930
Creator: Howerton, J. C.
Object Type: Newspaper
System: The Portal to Texas History
The Daily News-Telegram (Sulphur Springs, Tex.), Vol. 32, No. 130, Ed. 1 Sunday, June 1, 1930 (open access)

The Daily News-Telegram (Sulphur Springs, Tex.), Vol. 32, No. 130, Ed. 1 Sunday, June 1, 1930

Daily newspaper from Sulphur Springs, Texas that includes local, state, and national news along with advertising.
Date: June 1, 1930
Creator: Bagwell, J. S.
Object Type: Newspaper
System: The Portal to Texas History
The El Reno Daily Tribune (El Reno, Okla.), Vol. 38, No. 202, Ed. 1 Sunday, June 1, 1930 (open access)

The El Reno Daily Tribune (El Reno, Okla.), Vol. 38, No. 202, Ed. 1 Sunday, June 1, 1930

Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.
Date: June 1, 1930
Creator: Blair, James R. & Vandivier, Davis O.
Object Type: Newspaper
System: The Gateway to Oklahoma History

Fuel Oil Piping - Table Showing Calculated Suction Head for Booster Pumps

Blueprint depicting technical details of Battleship Texas.
Date: June 1, 1930
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History
"Gloster" Metal Construction (open access)

"Gloster" Metal Construction

This report details the methods of construction employed by the Gloster Company in their fabrication of metal aircraft parts. Ribs, spars, wings, and metal treatments to prevent oxidation are all discussed.
Date: June 1930
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Identification of Aircraft Tubing by Rockwell Test (open access)

Identification of Aircraft Tubing by Rockwell Test

A large number of tests were made on tubes of 1025 and 4130X steel, in various diameters and wall thicknesses, and after diverse heat treatments. The Rockwell B scale was employed, as being the best suited to the ranges of hardness encountered. Only satisfactory chrome molybdenum tubes were found to show a hardness in excess of 90-B after normalizing.
Date: June 1930
Creator: Knerr, Horace
Object Type: Report
System: The UNT Digital Library
Identification of Aircraft Tubing by Rockwell Test (open access)

Identification of Aircraft Tubing by Rockwell Test

Seamless steel tubing is today the principal material of construction for aircraft. The commercial grade of tubing containing about 0.10 to 0.20% carbon at first used is being superseded by two grades which are approved by the army and navy, and which are also becoming standard for commercial airplanes.
Date: June 1930
Creator: Knerr, Horace
Object Type: Report
System: The UNT Digital Library
The "Junkers-Junior" Light Airplane (German): A Two-Seat All-Metal Low-Wing Cantilever Monoplane (open access)

The "Junkers-Junior" Light Airplane (German): A Two-Seat All-Metal Low-Wing Cantilever Monoplane

Circular presenting a description of the Junkers-Junior light airplane, which is a cantilever all-metal low wing monoplane. Details of the wings, interior, fuselage, elevator, controls, landing gear, fuel, engines, characteristics, drawings, and photographs are provided.
Date: June 1930
Creator: unknown
Object Type: Report
System: The UNT Digital Library