Process of Making Amyl Acetate (open access)

Process of Making Amyl Acetate

Patent for Process of Making Amyl Acetate
Date: September 5, 1916
Creator: Essex, Harry & Brooks, Benjamin T.
Object Type: Patent
System: The Portal to Texas History
Radioactivity of Coals and Associated Rocks in Beaver, Clearfield, and Jefferson Counties, Pennsylvania (open access)

Radioactivity of Coals and Associated Rocks in Beaver, Clearfield, and Jefferson Counties, Pennsylvania

Report discussing the investigation of radioactivity in coal beds and associated rocks from the Pottsville, Allegheny, and Conemaugh formations in Beaver, Clearfield, and Jefferson counties, Pennsylvania. The report provides information regarding the procedures used, descriptive geology of the areas, radioactivity data, factors affecting the occurrence of radioactivity, and a summary.
Date: January 1955
Creator: Ferm, John C.
Object Type: Report
System: The UNT Digital Library
Résumé of Producer-Gas Investigations: October 1, 1904-June 30, 1910 (open access)

Résumé of Producer-Gas Investigations: October 1, 1904-June 30, 1910

From Scope of Report: "The purpose of this report is, therefore, to present in convenient form all the more important data accumulated in the course of the tests described, in order that the results may be readily accessible both to the Government officials having charge of the design, purchase, or care of power plants and to all persons interested in the development of the internal-combustion engine and the gas producer as means for utilizing the energy of fuels."
Date: 1911
Creator: Fernald, R. H. & Smith, C. D.
Object Type: Report
System: The UNT Digital Library
Incidental Problems in Gas-Producer Tests (open access)

Incidental Problems in Gas-Producer Tests

From Introduction: "In the course of this study many incidental problems of prime importance have demanded consideration. Among them is the determination, under practically constant conditions, of the duration of gas-producer tests necessary to reduce the possible error to minimum. A discussion of this proper length of test period forms the part of this bulletin."
Date: 1911
Creator: Fernald, R. H.; Smith, C. D.; Clement, J. K. & Grine, H. A.
Object Type: Report
System: The UNT Digital Library
Recent Development of the Producer-Gas Power Plant in the United States (open access)

Recent Development of the Producer-Gas Power Plant in the United States

From Introduction: "A summary of the tests made at St. Louis and a resume of the conclusions to be drawn from the tests and from the opinions of gas-producer manufacturers on the status of the gas producer and gas engine was published in a Survey bulletin in 1907. As it is desirable to repeat much of the material that appeared in the former bulletin (now out of print), this presentation may be regarded as a revision of the previous one, although considerable information not previously available for publication has been added."
Date: 1910
Creator: Fernald, Robert Heywood
Object Type: Report
System: The UNT Digital Library
Annual Report of Research and Technologic Work on Coal: Fiscal Year 1941 (open access)

Annual Report of Research and Technologic Work on Coal: Fiscal Year 1941

Report issued by the U.S. Bureau of Mines discussing the annual report over the research and technology of coal during 1941. As stated in the foreword, "these investigations increase our fund of exact knowledge on the properties and composition of American coals and lead to better methods in mining, preparing, storing, and utilizing coal" (p. 4). This report includes tables, illustrations, photographs, and a map.
Date: November 1941
Creator: Fieldner, Arno Carl & Schmidt, L. D.
Object Type: Report
System: The UNT Digital Library
Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1911 to 1913 (open access)

Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1911 to 1913

Report issued by the Bureau of Mines over analyses of coal samples collected from 1911 to 1913. The analyses and descriptions of the samples are presented and discussed. This report includes tables, and illustrations.
Date: 1914
Creator: Fieldner, Arno Carl; Smith, Howard I.; Fay, Albert H. & Sanford, Samuel
Object Type: Report
System: The UNT Digital Library
[Letter from Michael Fitzpatrick to the BRAC Commission - May 9, 2005] (open access)

[Letter from Michael Fitzpatrick to the BRAC Commission - May 9, 2005]

Letter from Representative Michael Fitzpatrick of Pennsylvania to the BRAC Commission concerning the Willow Grove Joint Reserve Base. In the letter, Fitzpatrick outlines three major defenses of the base and its importance to the community and national security.
Date: May 9, 2005
Creator: Fitzpatrick, Michael G.
Object Type: Letter
System: The UNT Digital Library
City Smoke Ordinances and Smoke Abatement (open access)

City Smoke Ordinances and Smoke Abatement

From Introduction: "In connection with the fuel investigations conducted by the Bureau of Mines much information has been accumulated as to the smoke abatement activities in various cities. The essential features of the information are presented in this report, which, it is believed, will be of public interest and benefit, especially to those communities that are just beginning organized effort to abate unnecessary smoke."
Date: 1912
Creator: Flagg, Samuel B.
Object Type: Report
System: The UNT Digital Library
Whiffletree. (open access)

Whiffletree.

Patent for an improvement in whiffletrees, made out of steel. It includes a description and illustration.
Date: April 21, 1891
Creator: Flatau, Louis S.
Object Type: Patent
System: The Portal to Texas History
Evaluation of the Streamflow-Data Program in Pennsylvania (open access)

Evaluation of the Streamflow-Data Program in Pennsylvania

Abstract: The stream-gaging program in Pennsylvania is subject to budgetary constraints in the next several years. Elimination of those gaging stations that have no current-purpose use and little utility in providing regional flow-characteristic information is the most effective way to reduce costs. The efficient design of a network of gaging stations for obtaining regional information requires knowledge of the information in the data base and an assessment of the potential for improving the accuracy of data-transfer mechanisms. The analytical technique known as Network Analysis for Regional Information is used to assess acquired streamflow information and to evaluate its transferability within previously determined regions of homogenous streamflow characteristics. Regression equations that relate low-, mean-, and flood-flow characteristics to basin parameters are the data-transfer mechanisms used in the evaluation. This analysis showed that only minor improvements in the regression equations can be expected after 20 additional years of data collection at gages in the 1980 program. Transfer mechanisms with less model error are needed for improved data transferability. A more efficient program can be achieved by discontinuing selected gages in the planning-and-design network. To this end, 11 continuous-record and 25 partial-record gages were selected to be discontinued by April 1, 1980. Additionally, …
Date: December 1982
Creator: Flippo, Herbert N., Jr.
Object Type: Report
System: The UNT Digital Library
Safety Cars of the United States Bureau of Mines (open access)

Safety Cars of the United States Bureau of Mines

Report issued by the U.S. Bureau of Mines discussing the mine stations and safety cars used to reach miners in distress. As stated in the report, "the purpose, equipment, personnel, and construction of its safety cars" is presented. This report includes an illustration, and a map.
Date: March 1931
Creator: Forbes, J. J. & Ankeny, M. J.
Object Type: Report
System: The UNT Digital Library
The Synthetic Liquid Fuel Potential of Pennsylvania (open access)

The Synthetic Liquid Fuel Potential of Pennsylvania

Report documenting the suitability of Pennsylvania for plant locations to produce synthetic liquid fuels, based on raw materials, water sources, and local interest.
Date: February 18, 1952
Creator: Ford, Bacon, and Davis
Object Type: Report
System: The UNT Digital Library
Cartridge-Loading Machine (open access)

Cartridge-Loading Machine

Patent for improvements to the machine originally patented on August 10, 186 by Edward A. Franklin of Brenham, patent no. 347,268.
Date: January 15, 1889
Creator: Franklin, Edward A.
Object Type: Patent
System: The Portal to Texas History
Cartridge-Loading Machine (open access)

Cartridge-Loading Machine

Patent for "an improvement in cartridge-loaders adapted to load cartridge shells automatically, the machine being operated by suitable power. It consists in improved power mechanism and devices which may be arranged and combined with the loading mechanism of a machine cartridge-loader" (lines 38-45).
Date: November 25, 1890
Creator: Franklin, Edward A.
Object Type: Patent
System: The Portal to Texas History
Machine for Loading Cartridges. (open access)

Machine for Loading Cartridges.

Patent for mechanizing and streamlining the steps involved in loading a cartridge.
Date: October 10, 1886
Creator: Franklin, Edward A.
Object Type: Patent
System: The Portal to Texas History
Washing Characteristics of the Pittsburgh Coal in a High-Sulfur Area in Greene County, Pennsylvania (open access)

Washing Characteristics of the Pittsburgh Coal in a High-Sulfur Area in Greene County, Pennsylvania

Technical paper issued by the Bureau of Mines over characteristics of Pittsburgh-seam coal in Greene County, Pennsylvania. The characteristics and locations of the coal are presented and discussed. This paper includes tables, maps, and illustrations.
Date: 1946
Creator: Fraser, Thomas & Crentz, William L.
Object Type: Report
System: The UNT Digital Library
High-Sulfur Pittsburgh Coal: Upgrading in Southwestern Pennsylvania and Northern West Virginia (open access)

High-Sulfur Pittsburgh Coal: Upgrading in Southwestern Pennsylvania and Northern West Virginia

From Summary and Conclusions: "This report deals with upgrading to metal-lurgical standards of large reserves of high-sulfur Pittsburgh coal remaining in southwestern Pennsylvania and northern West Virginia."
Date: 1950
Creator: Fraser, Thomas; Crentz, W. L. & Bailey, A. L.
Object Type: Report
System: The UNT Digital Library
Apparatus and Methods for the Sampling and Analysis of Furnace Gases (open access)

Apparatus and Methods for the Sampling and Analysis of Furnace Gases

From Introduction: "It is the purpose of this paper to describe some apparatus and methods which have proved satisfactory to those engaged in the chemical work of the investigations mentioned. While these methods and apparatus have been designed more particularly with regard to analysis of furnace gases, their use is by no means limited to that purpose."
Date: 1911
Creator: Frazer, J. C. W. & Hoffman, E. J.
Object Type: Report
System: The UNT Digital Library
The Production of Cigar-Leaf Tobacco in Pennsylvania (open access)

The Production of Cigar-Leaf Tobacco in Pennsylvania

Report describing the production of tobacco in Pennsylvania, specifically cigar-leaf tobacco. Topics discussed include soil requirements, different planting methods, harvesting practices, curing and handling processes, and diseases and insect enemies of the tobacco plant.
Date: 1910
Creator: Frear, William, 1860-1922 & Hibshman, E. K.
Object Type: Pamphlet
System: The UNT Digital Library
The Production of Cigar-Leaf Tobacco in Pennsylvania (open access)

The Production of Cigar-Leaf Tobacco in Pennsylvania

Revised edition. Report describing the production of tobacco in Pennsylvania, specifically cigar-leaf tobacco. Topics discussed include soil requirements, different planting methods, harvesting practices, curing and handling processes, and diseases and insect enemies of the tobacco plant.
Date: 1918
Creator: Frear, William, 1860-1922 & Hibshman, E. K.
Object Type: Pamphlet
System: The UNT Digital Library
The Production of Cigar-Leaf Tobacco in Pennsylvania (open access)

The Production of Cigar-Leaf Tobacco in Pennsylvania

Revised edition. Report describing the production of tobacco in Pennsylvania, specifically cigar-leaf tobacco. Topics discussed include soil requirements, different planting methods, harvesting practices, curing and handling processes, and diseases and insect enemies of the tobacco plant.
Date: 1921
Creator: Frear, William, 1860-1922 & Hibshman, E. K.
Object Type: Pamphlet
System: The UNT Digital Library
The Production of Cigar-Leaf Tobacco in Pennsylvania (open access)

The Production of Cigar-Leaf Tobacco in Pennsylvania

Revised edition. Report describing the production of tobacco in Pennsylvania, specifically cigar-leaf tobacco. Topics discussed include soil requirements, different planting methods, harvesting practices, curing and handling processes, and diseases and insect enemies of the tobacco plant.
Date: 1922
Creator: Frear, William, 1860-1922 & Hibshman, E. K.
Object Type: Pamphlet
System: The UNT Digital Library
Infrared and Ultraviolet Spectrometric Techniques and Spectra-Structure Correlations (open access)

Infrared and Ultraviolet Spectrometric Techniques and Spectra-Structure Correlations

From Introduction: "The work in absorption spectrometry performed in the Bureau at Bruceton laboratories will be described in this bulletin."
Date: 1966
Creator: Friedel, R. A. & Queiser, J. A.
Object Type: Report
System: The UNT Digital Library