Collection
Technical Report Archive and Image Library
196
National Advisory Committee for Aeronautics Collection
174
Texas Patents
145
USDA Farmers' Bulletins
47
Government Documents A to Z Digitization Project
19
USGS Topographic Map Collection
15
The Federal Reporter
8
Texas State Publications
7
Texas Soil Surveys
4
United States Experiment Station Reports
2
3 More
Serial/Series Title
NACA Technical Memorandums
122
NACA Technical Notes
46
Farmers' bulletin (United States. Dept. of Agriculture)
31
United States Bureau of Mines Reports
19
Farmers' bulletin (United States. Department of Agriculture)
15
National reporter system. United States series
8
The Federal Reporter
8
15 Minute Series (Topographic)
7
30 Minute Series
5
NACA Technical Reports
5
22 More
Degree Department
States
426 Matching Results
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Performance of B. M. W. 185-Horsepower Airplane Engine
"This report deals with the results of a test made upon a B. M. W. Engine in the altitude chamber of the Bureau of Standards, where controlled conditions of temperature and pressure can be made to simulate those of the desired altitude. A remarkably low value of fuel consumption - 041 per B. H. P. hour - is obtained at 1,200 revolutions per minute at an air density of 0.064 pound per cubic foot and a brake thermal efficiency of 33 per cent and an indicated efficiency of 37 per cent at the above speed and density. In spite of the fact that the carburetor adjustment does not permit the air-fuel ratio of maximum economy to be obtained at air densities lower than 0.064, the economy is superior to most engines tested thus far, even at a density lower than 0.064, the economies superior to most engines tested thus far, even at a density (0.03) corresponding to an altitude of 25,000 feet" (p. 1).
Date:
1922
Creator:
Sparrow, S. W.
Object Type:
Report
System:
The UNT Digital Library
What Libraries Learned from the War.
Pamphlet containing lessons learned by librarians during their service in World War I. Topics covered include how men were not influenced by books or libraries, that libraries must be organized, and that libraries could be used to foster the understanding of world problems.
Date:
January 1922
Creator:
Milam, Carl Hastings, 1884-1963
Object Type:
Pamphlet
System:
The UNT Digital Library
What Tractors and Horses Do on Corn-Belt Farms.
Discusses the benefits and drawbacks of using tractors and horses for tasks on Corn Belt farms.
Date:
1922
Creator:
Reynoldson, L. A. (Le Roy August), b. 1886 & Tolley, H. R. (Howard Ross), 1889-1958
Object Type:
Book
System:
The UNT Digital Library
The Bulk Handling of Grain: With Special Reference to the Pacific Coast States.
Describes the process and equipment necessary for handling grain in bulk, and the advantages of doing so.
Date:
October 1922
Creator:
Bates, E. N. (Erastus Newton), 1879- & Rush, A. L. (Albert Levi), 1870-
Object Type:
Book
System:
The UNT Digital Library
Care and improvement of the farm woods.
Describes methods for maintaining and improving woodland areas on the farm.
Date:
March 1922
Creator:
Tillotson, C. R. (Claude Raymond), 1883-
Object Type:
Book
System:
The UNT Digital Library
Performance of B. M. W. 185-horsepower airplane engine
Report discusses the results of testing on a B.M.W. engine in an altitude chamber where temperature and pressure can be controlled to simulate flight at various altitudes. Results for various engine speeds, altitudes, and propeller speeds are provided.
Date:
April 13, 1922
Creator:
Sparrow, Stanwood Willston
Object Type:
Report
System:
The UNT Digital Library
Drilling and Dustiness of Metal-Mine Air
Report issued by the U.S. Bureau of Mines on the air quality in metal-mines after using wet drills. Dust samples are collected and compared to samples collected from similar metal-mines in South Africa and Australia. This report includes tables.
Date:
March 1922
Creator:
Harrington, D.
Object Type:
Report
System:
The UNT Digital Library
Recovery of Gasoline From Uncondensed Still Vapors
Report issued by the U.S. Bureau of Mines on the possibilities of increasing fuel production from crude oil. Methods of recovering oil that is lost by remaining uncondensed are presented. This report includes tables, graphs, and illustrations.
Date:
April 1922
Creator:
Dow, Donald B.
Object Type:
Report
System:
The UNT Digital Library
Preparation of peaches for market.
Discusses the losses caused by improper packing of peaches for the market. Provides descriptions of how peaches are to be picked, packaged, and made ready to be sold.
Date:
April 1922
Creator:
Samson, H. W. (Harold Willis), 1888-1927
Object Type:
Book
System:
The UNT Digital Library
The boll-weevil problem.
Describes the characteristics of the boll weevil, the damage that it causes to crops, and methods for its control.
Date:
May 1922
Creator:
Hunter, W. D. (Walter David), 1875-1925 & Coad, B. R.
Object Type:
Book
System:
The UNT Digital Library
Webworms Injurious to Cereal and Forage Crops and Their Control.
Discusses the life cycle of the webworm, the damage it can cause to cereal and forage crops, and methods to control it.
Date:
May 1922
Creator:
Ainslie, George G.
Object Type:
Book
System:
The UNT Digital Library
The common white wheats.
Describes winter and spring varieties of white wheats and their production in the United States.
Date:
December 1922
Creator:
Clark, J. Allen (Jacob Allen), b. 1888; Martin, John H. (John Holmes), 1893- & Leighty, C. E. (Clyde Evert), b. 1882
Object Type:
Book
System:
The UNT Digital Library
Concrete Form.
Patent for a circular concrete form. The form is adjustable and allows nesting for storage and transport.
Date:
October 17, 1922
Creator:
Harris, John W.
Object Type:
Patent
System:
The Portal to Texas History
Billboard
Patent for billboards built for wind resistance.
Date:
November 28, 1922
Creator:
Kelly, Walter
Object Type:
Patent
System:
The Portal to Texas History
Article Holder or Stand.
Patent for a device that conveniently and readily supports books, photographs, picture cards, and other similar articles. The new design is formed from a single strand of wire, and is specifically adapted for holding books in an open position and allowing the pages to be turned as needed.
Date:
February 28, 1922
Creator:
Boyette, Oren K.
Object Type:
Patent
System:
The Portal to Texas History
Automatic Gas-Release Packer.
Patent for automatic gas release packer that uses constant pressure regulated by spring-controlled valves for better control when lifting oil out of wells.
Date:
April 11, 1922
Creator:
Cummings, William J.
Object Type:
Patent
System:
The Portal to Texas History
Clip for Eyeglass Cases and The Like
Patent for a clip for eyeglass cases and the like. Meant to provide an inexpensive and simple clip to hold eyeglass cases in the pocket to prevent displacement.
Date:
March 14, 1922
Creator:
Evans, William B.
Object Type:
Patent
System:
The Portal to Texas History
Core-Taking Device
Patent for improvements to a core-taking device which will "form a core, in the process of drilling, and embodies means for severing the core, when formed, and retaining the same in the core barrel until, it is withdrawn for inspection" (lines 13-17), including illustrations.
Date:
June 20, 1922
Creator:
Christian, Walton G.
Object Type:
Patent
System:
The Portal to Texas History
Automobile Headlight.
Patent for an improved automobile headlight equipped with a movable lens and reflector to cast light down towards the roadway.
Date:
November 14, 1922
Creator:
Head, James M.
Object Type:
Patent
System:
The Portal to Texas History
Animated Sign
Patent for a display apparatus to be implemented as animated advertising signs which successively display different images by controlling the timing of changes in the colors of light used to flood the front and to backlight the display surfaces. The images are created in such a way that certain elements created in certain colors become absorbed or are made invisible when illuminated by certain colors of light. An apparatus controls the cyclical changes of the colored lights used by the sign.
Date:
September 5, 1922
Creator:
Craig, Richard M.
Object Type:
Patent
System:
The Portal to Texas History
Ant Trap
Patent for an ant trap designed as a ring-shaped trough and which allows for the drainage of rainwater through a pipe fitted with a porous plug. Both walls of the trough are capped with inward and downward curved flanges.
Date:
August 1, 1922
Creator:
Scrivner, Jefferson Davis
Object Type:
Patent
System:
The Portal to Texas History
Spontaneous Combustion of Hydrogen
It is shown by the author's experiments that hydrogen which escapes to the atmosphere through openings in the system may burn spontaneously if it contains dust. Purely thermal reasoning can not account for the combustion. It seems to be rather an electrical ignition. In order to determine whether the cause of the spontaneous ignition was thermo-chemical, thermo-mechanical, or thermo-electrical, the experiments in this paper were performed.
Date:
March 4, 1922
Creator:
Pothmann, P. & Nusselt, Wilhelm
Object Type:
Report
System:
The UNT Digital Library
Communications and Beacons on Air Routes
Different systems of navigations beacons are discussed with an emphasis on radiotelegraphy and radiotelephony.
Date:
March 1922
Creator:
Franck
Object Type:
Report
System:
The UNT Digital Library
Coal-Dust Explosion Tests in the Experimental Mine 1913-1918, Inclusive
Report issued by the Bureau of Mines over experiments conducted on coal-dust explosions. The results of the experiments are presented and discussed. This report includes tables, illustrations, and photographs.
Date:
June 1922
Creator:
Rice, George S.; Jones, Lewis M.; Egy, Willard Leo & Greenwald, H. P.
Object Type:
Report
System:
The UNT Digital Library