Search Results

[Aerial Photograph of the Football Field at North Texas State Teachers College]

Description: An aerial view of the first football field on the campus of North Texas State Teachers College (now known as the University of North Texas). The football field was located off of Highland Street, where the Willis Library and Hurley Administration Building are today. The image also shows the campus tennis courts, the Men’s Gym and a corner of the Swimming Pool.
Date: 1939~
Partner: UNT Libraries Special Collections
open access

The aerodynamic characteristics of six full-scale propellers having different airfoil sections

Description: From Summary: "Wind-tunnel tests are reported of six 3-blade 10-foot propellers operated in front of a liquid-cooled engine nacelle. The propellers were identical except for blade airfoil sections, which were: Clark y, R.A.F. 6, NACA 4400, NACA 2400-34, NACA 2rsub200, and NACA 6400. The range of blade angles investigated extended for 15 degrees to 40 degrees for all propellers except the Clark y, for which it extended to 45 degrees. The results showed that the range in maximum efficiency between the highest and lowest values was about 3 percent. The highest efficiencies were for the low-camber sections."
Date: 1939
Creator: Biermann, David & Hartman, Edwin P.
Partner: UNT Libraries Government Documents Department
open access

Aircraft rate-of-climb indicators

Description: From Summary: "The theory of the rate-of-climb indicator is developed in a form adapted for application to the instrument in its present-day form. Certain dynamic effects, including instrument lag, and the use of the rate-of-climb indicator as a statoscope are also considered. Modern instruments are described. A laboratory test procedure is outlined and test results are given."
Date: 1939
Creator: Johnson, Daniel P.
Partner: UNT Libraries Government Documents Department
open access

Airfoil section characteristics as affected by variations of the Reynolds number

Description: Report presents the results of an investigation of a systematically chosen representative group of related airfoils conducted in the NACA variable-density wind tunnel over a wide range of Reynolds number extending well into the flight range. The tests were made to provide information from which the variations of airfoil section characteristics with changes in the Reynolds number could be inferred and methods of allowing for these variations in practice could be determined. This work is one phase of an extensive and general airfoil investigation being conducted in the variable-density tunnel and extends the previously published researches concerning airfoil characteristics as affected by variations in airfoil profile determined at a single value of the Reynolds number.
Date: 1939
Creator: Jacobs, Eastman N. & Sherman, Albert
Partner: UNT Libraries Government Documents Department
open access

Airfoil section data obtained in the NACA variable-density tunnel as affected by support interference and other corrections

Description: From Introduction: "The purpose of this report is to present the corrections for application to published results from the variable-density tunnel to give more reliable values of section profile-drag coefficient for airfoils of various thickness."
Date: 1939
Creator: Jacobs, Eastman N. & Abbott, Ira H.
Partner: UNT Libraries Government Documents Department

[Antique stone sharping wheel]

Description: Photograph of an antique stone sharpening wheel in the middle of tall and short weeds attached to an old wood frame. Next to the sharpening wheel is an old barrel. There is a wire fence behind the sharpening wheel with the end post directly behind the wheel. In the background, it looks to be a dirt road leading somewhere coming up alongside where the sharping wheel is placed. Also in the background, it looks to be a field with a building off to the right edge of the photo. There is some kind of cone-shaped object placed on a fence post.
Date: [1939..1989]
Creator: Clark, Joe
Partner: UNT Libraries Special Collections
open access

Apple scab.

Description: Discusses apple scab, its economic impact, distribution, susceptibility of various apples to the disease, and preventive measures.
Date: 1939
Creator: Roberts, John W. (John William), 1882-1957. & Pierce, Leslie.
Partner: UNT Libraries Government Documents Department

[Apples in a backyard]

Description: Photograph of a different bins filled with apples in a backyard. The apples sit in the bottom right part of the image on a small porch of what appears to be a shed. Beyond the fence, there are hills and foliage sitting in the background.
Date: [1939..1989]
Creator: Clark, Joe
Partner: UNT Libraries Special Collections

[Apples sitting next to a well]

Description: Photograph of five bins of apples sitting in front of a wooden well. The apples are positioned in the lower third of the image and sit on the steps leading to the well. A building is attached to the porch on the right, and an open field can be seen past the fencing in the background.
Date: [1939..1989]
Creator: Clark, Joe
Partner: UNT Libraries Special Collections

[Apples sitting next to a well, 2]

Description: Photograph of five bins of apples sitting in front of a wooden well. The apples are positioned in the lower third of the image and sit on the steps leading to the well. A building is attached to the porch on the right, and an open field can be seen past the fencing in the background.
Date: [1939..1989]
Creator: Clark, Joe
Partner: UNT Libraries Special Collections

Arched Drinker

Description: No Description Available.
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: 1939~/1942~
Creator: Traylor, William
Partner: UNT College of Visual Arts + Design

[Attaching spokes to a wheel]

Description: Photograph of a man preparing a spoke to attach to a wheel. The man stands on the left side of the image and files down the end of a spoke, and the wheel he works on sits on top of a table to the right of him. There are tools scattered everywhere around the wheel, and the scene is illuminated from a light off camera on the right.
Date: [1939..1989]
Creator: Clark, Joe
Partner: UNT Libraries Special Collections

[An automobile driving down a dirt road]

Description: Photograph of an automobile driving down a long dirt road. A forest can be seen on one side of the road and farmland on the opposite side. The hood and one headlight of the automobile are visible in the bottom of the image.
Date: [1939..1989]
Creator: Clark, Joe
Partner: UNT Libraries Special Collections

[An automobile stuck in the mud]

Description: Photograph of an automobile stuck in the mud. Two men appear to be working to the get automobile unstuck. One man squats next to the automobile and holds an unknown tool with chains. Another man stands beside him and leans over him. Mountains are visible in the background.
Date: [1939..1989]
Creator: Clark, Joe
Partner: UNT Libraries Special Collections

[Automobiles parked at the beach]

Description: Photograph of automobiles parked on a beach next to a dock. Tire tracks can be seen in the sand. Multiple seagulls are visible as well as rows of boats. City buildings are present in the background.
Date: [1939..]
Creator: Williams, Byrd M. (Byrd Moore), III
Partner: UNT Libraries Special Collections
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