High Velocity Wind Tunnels: Their Application to Ballistics, Aerodynamics, and Aeronautics (open access)

High Velocity Wind Tunnels: Their Application to Ballistics, Aerodynamics, and Aeronautics

"The object of this article is to set forth the particular properties of swiftly-moving air, how these affect the installation of a wind tunnel, the experimental results already obtained, the possible applications of such a tunnel, and what can be easily accomplished at the present time" (p. 1).
Date: June 1925
Creator: Huguenard, E.
Object Type: Report
System: The UNT Digital Library
Home canning of fruits and vegetables. (open access)

Home canning of fruits and vegetables.

A guide to home canning. Includes instructions for canning a variety of fruits and fruit juices, vegetables and soups, and meats and meat dishes.
Date: June 1923
Creator: United States. Dept. of Agriculture. States Relations Service.
Object Type: Book
System: The UNT Digital Library
Ignition Device. (open access)

Ignition Device.

Patent for improvements in Ignition Devices. This device will assist in locating trouble when a multi-cylinder gasoline engine is not firing regularly and one cylinder is "missing".
Date: June 8, 1920
Creator: Wood, Robert N.
Object Type: Patent
System: The Portal to Texas History
Insect Destroyer. (open access)

Insect Destroyer.

Patent for an wheeled vehicle mounted insect destroyer that brushes insects from plants and destroys them utilizing flames, includes illustrations.
Date: June 13, 1922
Creator: Franks, John L.
Object Type: Patent
System: The Portal to Texas History
Insect enemies of the flower garden. (open access)

Insect enemies of the flower garden.

Describes insect pests that threaten flowering plants in the home garden.
Date: June 1927
Creator: Weigel, C. A. (Charles Adolph) & Middleton, William, 1893-
Object Type: Book
System: The UNT Digital Library
Investigation of a Wing With an Auxiliary Upper Part (open access)

Investigation of a Wing With an Auxiliary Upper Part

This report presents experiments in which two parts of the wing were arranged so as to form a biplane, which was subjected to normal three-component measurements, the two parts being placed in various relative positions with respect to the gap a and the stagger b.
Date: June 1927
Creator: Seiferth, R.
Object Type: Report
System: The UNT Digital Library
Investigation of Atomization in Carburetors (open access)

Investigation of Atomization in Carburetors

This report presents methods by which it is possible to determine, in a simple manner, both pressure atomization and carburetor atomization.
Date: June 1929
Creator: Sauter, J.
Object Type: Report
System: The UNT Digital Library
Investigation of the Effect of the Fuselage on the Wing of a Low-Wing Monoplane (open access)

Investigation of the Effect of the Fuselage on the Wing of a Low-Wing Monoplane

Memorandum presenting the mutual action of wing and fuselage, which greatly affects the construction of airplanes. A description of systematic wind-tunnel tests that were made to answer that question is provided. Other tests deal with the transition from fuselage to wing root, which, if inadequate on low-wing monoplanes, may become dangerous by causing the air flow to separate at the wing root.
Date: June 1929
Creator: Muttray, H.
Object Type: Report
System: The UNT Digital Library
An Investigation of the Use of Discharge Valves and an Intake Control for Improving the Performance of N.A.C.A. Roots Type Supercharger (open access)

An Investigation of the Use of Discharge Valves and an Intake Control for Improving the Performance of N.A.C.A. Roots Type Supercharger

"This report presents the results of an analytical investigation on the practicability of using mechanically operated discharge valves in conjunction with a manually operated intake control for improving the performance of N. A. C. A. Roots type superchargers. These valves, which may be either of the oscillating or rotating type, are placed in the discharge opening of the supercharger and are so shaped and synchronized with the supercharger impellers that they do not open until the air has been compressed to the delivery pressure. The intake control limits the quantity of air compressed to engine requirements by permitting the excess air to escape from the compression chamber before compression begins" (p. 479).
Date: June 29, 1928
Creator: Schey, Oscar W. & Wilson, Ernest E.
Object Type: Report
System: The UNT Digital Library
Junkers Airplane "G 24": All-Metal Commercial Airplane (open access)

Junkers Airplane "G 24": All-Metal Commercial Airplane

The G 24 is a commercial airplane with three engines and a monoplane wing. It is known for its all metal construction and stabilizers.
Date: June 1927
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Kettle-Furnace. (open access)

Kettle-Furnace.

Patent for a kettle furnace of simple construction; a kettle furnace comprising a sheet metal member having bolt openings disposed in pairs near the vertical edge.
Date: June 1, 1920
Creator: Sanders, Oscar Perdue
Object Type: Patent
System: The Portal to Texas History
Lamb and Mutton and Their Use in the Diet. (open access)

Lamb and Mutton and Their Use in the Diet.

Suggests ways to prepare lamb and mutton for the table and of combining them with other ingredients of suitable flavor.
Date: June 1923
Creator: United States. Department of Agriculture. States Relations Service.
Object Type: Book
System: The UNT Digital Library
Lecture on the Rhon soaring flight competition, 1921 (open access)

Lecture on the Rhon soaring flight competition, 1921

This article presents a recounting of the Rhon soaring competition with emphasis on new designs, results, and prizes awarded. A round-robin discussion is also included at the end of the report.
Date: June 1922
Creator: Hoff, Wilhelm
Object Type: Report
System: The UNT Digital Library
Lice, mange, and ticks of horses, and methods of control and eradication. (open access)

Lice, mange, and ticks of horses, and methods of control and eradication.

Describes the characteristics of parasites of horses, the diseases they cause, and methods of control.
Date: June 1926
Creator: Imes, Marion
Object Type: Book
System: The UNT Digital Library
Lift for Gin-Breasts. (open access)

Lift for Gin-Breasts.

Patent for safely positioning the gin breast by including a operating lever to raise, swing, or lower the breast.
Date: June 7, 1921
Creator: Pool, Charles R. P.
Object Type: Patent
System: The Portal to Texas History
Liquid Fuel Burner (open access)

Liquid Fuel Burner

Patent for fuel burner that can be dismantled and easily moved around the kitchen.
Date: June 20, 1920
Creator: Tucker, William A.
Object Type: Patent
System: The Portal to Texas History
Liquid-Fuel Burner. (open access)

Liquid-Fuel Burner.

Patent for improvements in liquid fuel burner that generates gas from liquids that requires no labor or supervision.
Date: June 8, 1920
Creator: Bittner, Emil R.
Object Type: Patent
System: The Portal to Texas History
Lock and Key. (open access)

Lock and Key.

Patent for a lock which requires a key that is adjustable and difficult to duplicate in order to prevent lock picking.
Date: June 28, 1921
Creator: Dove, Bascom A.
Object Type: Patent
System: The Portal to Texas History
Lock-Washer. (open access)

Lock-Washer.

Patent for "an improved lock washer especially adapted for locking nuts" (lines 10-11) that was designed to "be interposed between the nut and a member to be clamped by the nut" (lines 14-16).
Date: June 8, 1920
Creator: Medbery, Clinton A.
Object Type: Patent
System: The Portal to Texas History
Locking Device for Motor-Vehicles. (open access)

Locking Device for Motor-Vehicles.

Patent for a simple, inexpensive locking mechanism that would prevent an automobile from being used in an unauthorized way, while still allowing the vehicle to be manually moved or towed if needed, including illustrations.
Date: June 21, 1921
Creator: Harris, Robert E.
Object Type: Patent
System: The Portal to Texas History
Locking Device for Motor-Vehicles. (open access)

Locking Device for Motor-Vehicles.

Patent for locking devices for Ford automobiles and trucks, which have a particular steering and control mechanism. The purpose is to provide a locking device, particularly well adapted to Ford automobiles and trucks, to limit the movement of the steering wheel and prevent the movement of the throttle lever from a closed position.
Date: June 21, 1921
Creator: Harris, Robert E.
Object Type: Patent
System: The Portal to Texas History
Measuring Vessel. (open access)

Measuring Vessel.

Patent for a measuring vessel that is meant to be used with a gasoline device described in patent application Serial No. 228,889.
Date: June 28, 1921
Creator: McKallip, John C.
Object Type: Patent
System: The Portal to Texas History
Metal Mine Ventilation and its Relation to Safety and Efficiency in Mining Operations (open access)

Metal Mine Ventilation and its Relation to Safety and Efficiency in Mining Operations

Report on mine ventilation and its relation to safety and efficiency.
Date: June 1920
Creator: Harrington, D.
Object Type: Report
System: The UNT Digital Library
Metal Spars (open access)

Metal Spars

Certain principles are common to all metal spars and the design of a particular metal spar is followed throughout the design process.
Date: June 1926
Creator: Haddon, J. D.
Object Type: Report
System: The UNT Digital Library