Temperatures in Cabs of Freight Locomotives Passing Through Tunnels of the Chesapeake & Ohio Railroad (open access)

Temperatures in Cabs of Freight Locomotives Passing Through Tunnels of the Chesapeake & Ohio Railroad

Report issued by the U.S. Bureau of Mines on experiments conducted to improve the cab conditions of freight engines. The temperature, gas content, and other properties are presented. This report includes tables, graphs, and illustrations.
Date: July 1924
Creator: Katz, S. H. & Meiter, Edward George
Object Type: Report
System: The UNT Digital Library
The Use of Oxygen or Oxygenated Air in Metallurgical and Allied Processes: Report of the Committee for the Application of Oxygen or Oxygenated Air (open access)

The Use of Oxygen or Oxygenated Air in Metallurgical and Allied Processes: Report of the Committee for the Application of Oxygen or Oxygenated Air

Report issued by the U.S. Bureau of Mines on the possibilities of applying oxygenated air during metallurgical and allied processes. The methods and results of applying oxygenated air to these processes are presented. This report includes tables and graphs.
Date: July 1923
Creator: Davis, F. W.
Object Type: Report
System: The UNT Digital Library
Method and Cost of Mining the Thick Freeport Coal in a Second Western Pennsylvania Mine (open access)

Method and Cost of Mining the Thick Freeport Coal in a Second Western Pennsylvania Mine

From introduction: The purpose of this paper is to present a detailed description of the methods employed and the equipment used, with the results obtained in the operation of this mine in the thick Freeport bed on the northern end of the field, near the Alleghegny-Butler county line in western Pennsylvania. It may be classed as a captive mine, as the largest portion of the product is consumed at the by-product plants of the parent company
Date: July 1929
Creator: Paul, James Washington & Tomlinson, H.
Object Type: Report
System: The UNT Digital Library
Boll Weevil Catcher (open access)

Boll Weevil Catcher

The objective of the invention is to improve to catching and destroying boll weevils with a device that is easily attached to a cultivator. This device includes "receptacles filled with an insect destroying liquid." (lines 23-24).
Date: July 5, 1921
Creator: Ploch, Alex
Object Type: Patent
System: The Portal to Texas History
The Manufacture of Sulphuric Acid in the United States (open access)

The Manufacture of Sulphuric Acid in the United States

Report issued by the Bureau of Mines over the production of sulfuric acid. As stated in the introduction, "the present bulletin was prepared to cover the main facts in regard to the industry in this country, including a discussion of the supplies of sulfur-bearing raw materials, the situation of the acid plants, the principal points in regard to manufacturing processes, and the uses of the acid" (p. 2). This report includes tables, illustrations, photographs, and a map.
Date: July 1920
Creator: Wells, Arthur Edward & Fogg, Donald E.
Object Type: Report
System: The UNT Digital Library
Warehouse Laws of the State of Texas and List of State Bonded Warehouses (open access)

Warehouse Laws of the State of Texas and List of State Bonded Warehouses

Agriculture bulletin printing selected excerpts of Texas laws related to the state bonding of warehouses and markets, along with a list of warehouses under bond in the state at the time of publication, organized by county.
Date: July 1929
Creator: Davis, Fred W.
Object Type: Book
System: The Portal to Texas History
Laboratory Studies of the Trent Process (open access)

Laboratory Studies of the Trent Process

Report issued by the U.S. Bureau of Mines detailing the laboratory-scale tests of the efficiency of the Trent process in cleaning coal, in which powdered coal, water, and oil is agitated or beaten together to remove impurities. The report includes details in tables detailing the efficiency varying the type and amounts of coal, oil, and water on the process.
Date: July 1921
Creator: Perrott, G. St. John & Kinney, Selwyne Perez
Object Type: Report
System: The UNT Digital Library
Crown Setter (open access)

Crown Setter

Patent for a crown setter that can make impressions of varying sizes with the same tool.
Date: July 6, 1920
Creator: Lewis, Samuel Riley
Object Type: Patent
System: The Portal to Texas History
U.S. Bureau of Standards Annual Report: 1921 (open access)

U.S. Bureau of Standards Annual Report: 1921

Report describing the functions and operations of the United States Bureau of Commerce and its divisions during the fiscal year.
Date: July 1921
Creator: United States. Bureau of Standards.
Object Type: Report
System: The UNT Digital Library
Tests of a Powdered-Coal Plant: A Report of Investigations at the Power Plant of the St. Joseph Lead Co., Rivermines, Missouri (open access)

Tests of a Powdered-Coal Plant: A Report of Investigations at the Power Plant of the St. Joseph Lead Co., Rivermines, Missouri

Technical paper issued by the Bureau of Mines over tests conducted at the powdered-coal plant in Rivermines, Missouri. The results of boiler tests, dryer tests, and mill tests are discussed. This report includes tables, and illustrations.
Date: July 1923
Creator: Kreisinger, Henry; Blizard, John; Augustine, C. E. & Cross, B. J.
Object Type: Report
System: The UNT Digital Library
Oil-Shale: An Historical, Technical, and Economic Study (open access)

Oil-Shale: An Historical, Technical, and Economic Study

Report issued by the U.S. Bureau of Mines discussing studies conducted on the development of the oil-shale industry from a historical, technical, and economic perspective. Results of the studies are presented. This report includes tables, illustrations, and photographs.
Date: July 1922
Creator: Gavin, Martin J.
Object Type: Report
System: The UNT Digital Library
Taxonomic Review of American Long-tailed Shrews (Genera Sorex and Microsorex) (open access)

Taxonomic Review of American Long-tailed Shrews (Genera Sorex and Microsorex)

Brief summary of the habitat, habits, food and economic status, measurements, subfamilies, and subgenera of genera Sorex and Microsorex.
Date: July 1928
Creator: Jackson, Hartley H. T.
Object Type: Report
System: The UNT Digital Library
Antileak Composition. (open access)

Antileak Composition.

Patent for improvements in antileak composition in order to prevent leaks in liquid holding containers like radiators, boilers, etc.
Date: July 5, 1921
Creator: Shrum, Will N.
Object Type: Patent
System: The Portal to Texas History
Automatic Signal-Actuating Mechanism for Railways (open access)

Automatic Signal-Actuating Mechanism for Railways

Patent for an improved signal actuating mechanisms for railways. When the train cars reach an operating mechanism, a flag will be raised where pedestrians or cars cross, and cause a signal to be repeated until the train passes.
Date: July 20, 1920
Creator: Bashara, Samuel Farris
Object Type: Patent
System: The Portal to Texas History
Advertising Attachment for Scales. (open access)

Advertising Attachment for Scales.

Patent for improvements in advertising attachments for scales to "provide an attachment of the character specified, wherein a series of display members are provided, mounted to be moved into different positions, to bring different matter into different positions, and controlled to movement by the stepping onto the weighing platform of the one to be weighed." (lines 11-18)
Date: July 13, 1920
Creator: Funk, Arthur Neal
Object Type: Patent
System: The Portal to Texas History
Coal-Oil Generator. (open access)

Coal-Oil Generator.

Patent for improvements in oil burners to have the "means to permit the same to be positioned within the fire box of a stove, by means of the especially constructed support." (lines 12-15)
Date: July 13, 1920
Creator: Epps, Henry Gaston
Object Type: Patent
System: The Portal to Texas History
Comfort and the Like. (open access)

Comfort and the Like.

Patent for a loosely woven material that covers household furnishings so it can be easily cleaned and then reattached.
Date: July 27, 1920
Creator: McNatt, Lucie R.
Object Type: Patent
System: The Portal to Texas History
Attachment for Rotaries. (open access)

Attachment for Rotaries.

Patent for rotary well-drilling machinery where the "ring or bushing to rotate independently of the table and the present invention is directed to means for accomplishing the rotating effect." (line 24-27)
Date: July 20, 1920
Creator: Johnston, Horace G.
Object Type: Patent
System: The Portal to Texas History
Crate. (open access)

Crate.

Patent for an improvement in crates that contains fruit in perfect condition without any bruising or mashing and can be stacked on top of each other.
Date: July 27, 1920
Creator: Woodruff, William Douglas
Object Type: Patent
System: The Portal to Texas History
Automatic Trough-Valve. (open access)

Automatic Trough-Valve.

Patent for improvements in animal watering troughs that has an automatic float control valve in connection with the trough.
Date: July 20, 1920
Creator: Striegler, Fritz
Object Type: Patent
System: The Portal to Texas History
Manufacture of Aluminum Chloride. (open access)

Manufacture of Aluminum Chloride.

Patent for the manufacture of Aluminum Chloride that can be carried out at lower temperatures with aluminum ore or compound, such as bauxite, sulfur and chlorine, and involves no cooking.
Date: July 11, 1922
Creator: Hall, Frank W.
Object Type: Patent
System: The Portal to Texas History
Game-Board. (open access)

Game-Board.

Patent for a game board that includes barriers, inclines, and depressions in the board which is meant to simulate a game similar to baseball (as well as other games) using a cue ball. The game board also comes with auxiliary barriers to adjust gameplay.
Date: July 12, 1921
Creator: Sterling, Don L.
Object Type: Patent
System: The Portal to Texas History
Fire-Extinguisher for Aeroplanes and the Like. (open access)

Fire-Extinguisher for Aeroplanes and the Like.

Patent for a fire extinguisher apparatus to be used in air crafts, boats, and other vehicles designed to be lightweight and to quickly extinguish fires.
Date: July 5, 1921
Creator: Clark, Walter C.
Object Type: Patent
System: The Portal to Texas History
Sleeve-Puller. (open access)

Sleeve-Puller.

Patent for simple and inexpensive sleeve puller, primarily for "pulling sleeves from the rear axle housing of a motor vehicle" (lines 13-14), with illustrations.
Date: July 12, 1921
Creator: Wilson, Joseph H.
Object Type: Patent
System: The Portal to Texas History