Trombone. (open access)

Trombone.

Patent, including illustration, for "a musical instrument slide and is more particularly designated as a bearing or stocking for a trombone or other similar instruments in which it is desirable to provide a smooth bearing for the slidable part of the instrument" (page 1, lines 9-13).
Date: February 17, 1920
Creator: Ackley, William D.
Object Type: Patent
System: The Portal to Texas History
Nozzle. (open access)

Nozzle.

Patent for a hose nozzle with increased capacity and efficiency. Includes instructions and illustrations.
Date: March 16, 1897
Creator: Adams, Don B.
Object Type: Patent
System: The Portal to Texas History
Broom or Brush (open access)

Broom or Brush

Patent for metal brooms or brushes that are "strong and durable, relatively light in weight, and can be inexpensively manufactured" (line 13-15). It is intended for "sweeping snow, mud, slush, and the like" (line 16-17). The patent can also be applied for smaller version of metal brooms or brushes for other purposes.
Date: March 16, 1915
Creator: Airhart, Noah S.
Object Type: Patent
System: The Portal to Texas History
Summary of Meteorological Data Taken at Argonne National Laboratory, Du Page County, Illinois, July 1952 Through June 1953 (open access)

Summary of Meteorological Data Taken at Argonne National Laboratory, Du Page County, Illinois, July 1952 Through June 1953

Report issued by the Argonne National Laboratory discussing meteorological data collected between 1952 and 1953. Wind, temperature, pressure, and precipitation studies are presented. This report includes tables, illustrations, and a map.
Date: April 1954
Creator: Argonne National Laboratory
Object Type: Report
System: The UNT Digital Library
Zinc and Lead Deposits of Northwestern Illinois (open access)

Zinc and Lead Deposits of Northwestern Illinois

From introduction: The subject of this paper is the district of the extreme northwestern portion of Illinois, included in the upper Mississippi Valley containing zinc and lead.
Date: 1905
Creator: Bain, Harry Foster
Object Type: Report
System: The UNT Digital Library
Common Birds of Southeastern United States in Relation to Agriculture (open access)

Common Birds of Southeastern United States in Relation to Agriculture

This report discusses birds commonly found in the southeastern United States with special regard to their diets and the impact these birds have on agriculture and insects in this region.
Date: 1916
Creator: Beal, F. E. L. (Foster Ellenborough Lascelles), 1840-1916; McAtee, W. L. (Waldo Lee), 1883-1962 & Kalmbach, E. R. (Edwin Richard), 1884-1972
Object Type: Pamphlet
System: The UNT Digital Library
Common Birds of Southeastern United States in Relation to Agriculture (open access)

Common Birds of Southeastern United States in Relation to Agriculture

Revised edition. This report discusses birds commonly found in the southeastern United States with special regard to their diets and the impact these birds have on agriculture and insects in this region.
Date: 1918
Creator: Beal, F. E. L. (Foster Ellenborough Lascelles), 1840-1916; McAtee, W. L. (Waldo Lee), 1883-1962 & Kalmbach, E. R. (Edwin Richard), 1884-1972
Object Type: Pamphlet
System: The UNT Digital Library
Bucket Excavator. (open access)

Bucket Excavator.

Patent for "new and useful Improvement in Bucket Excavators, of which the following is a specification. My invention relates to excavators of that kind in which a bucked is arranged to travel back and forth upon a runway which is lowered into the ground and which is adapted to determine the cross sectional outline of the ditch or excavation" (lines 5-13).
Date: November 30, 1915
Creator: Bettis, William I.
Object Type: Patent
System: The Portal to Texas History
Retort Vaporizer and Superheater (open access)

Retort Vaporizer and Superheater

Patent for improvements for vaporizers "of simple and highly efficient means for thoroughly and effectively superheating the vapor of water and oil" (lines 13-15).
Date: March 26, 1889
Creator: Biddison, Stella D.
Object Type: Patent
System: The Portal to Texas History
Beef Production in the Corn Belt (open access)

Beef Production in the Corn Belt

This bulletin discusses beef production in the Corn Belt of the United States with special regard to feed preparation, cattle selection, and methods for fattening cattle.
Date: 1921
Creator: Black, W. H. (William Henry), 1888-1949
Object Type: Pamphlet
System: The UNT Digital Library
Paper Separator (open access)

Paper Separator

Patent for a paper separator.
Date: October 24, 1905
Creator: Brintnall, Harry W. & Venney, Felix A.
Object Type: Patent
System: The Portal to Texas History
The Roundheaded Apple-Tree Borer (open access)

The Roundheaded Apple-Tree Borer

This report discusses the roundheaded apple-tree borer, an insect in the eastern and midwestern United States that, in its larval stage, destroys the bark and wood of apple trees. Several methods of control are discussed, including worming, paints and washes, and sprays.Apple-tree borers.
Date: 1915
Creator: Brooks, Fred E.
Object Type: Pamphlet
System: The UNT Digital Library
Summary of Conference on the Toxicity of Carbon 14 Held at Argonne National Laboratory, January 15-16, 1952 (open access)

Summary of Conference on the Toxicity of Carbon 14 Held at Argonne National Laboratory, January 15-16, 1952

Report issued by the Argonne National Laboratory discussing the Conference on the Toxicity of Carbon 14. At the outset of the meeting it was emphasized that the group was brought together to discuss work which had a bearing on the toxicity of C14 compounds used either clinically or industrially, and the hope was expressed that the group might be able to reach some conclusions on these matters. This report includes tables.
Date: March 1952
Creator: Brues, A. M. & Buchanan, D. L.
Object Type: Report
System: The UNT Digital Library
Quarterly Report August 1947 to November 1947, Biology Division (open access)

Quarterly Report August 1947 to November 1947, Biology Division

The following document is a compilation of quarterly reports from August 1946 to November of 1947 from the Biology Division of the University of Chicago.
Date: November 1, 1947
Creator: Brues, Austin M.
Object Type: Report
System: The UNT Digital Library
Asian Carp and the Great Lakes Region (open access)

Asian Carp and the Great Lakes Region

This report describes four species of non-indigenous Asian carp migrating to the United States, their potential impact, federal responses, and litigation.
Date: March 18, 2013
Creator: Buck, Eugene H.; Upton, Harold F.; Stern, Charles V. & Brougher, Cynthia
Object Type: Report
System: The UNT Digital Library
Asian Carp and the Great Lakes Region (open access)

Asian Carp and the Great Lakes Region

This report describes non-indigenous Asian carp species migrating to the United States, the economy at risk, federal response, and litigation.
Date: March 31, 2010
Creator: Buck, Eugene H.; Upton, Harold F.; Stern, Charles V. & Nicholas, James E.
Object Type: Report
System: The UNT Digital Library
Asian Carp and the Great Lakes Region (open access)

Asian Carp and the Great Lakes Region

This report describes non-indigenous Asian carp migrating to the United States, their potential impacts on the ecosystem, federal responses, and litigation.
Date: June 7, 2010
Creator: Buck, Eugene H.; Upton, Harold F.; Stern, Charles V. & Nichols, James E.
Object Type: Report
System: The UNT Digital Library
Asian Carp and the Great Lakes Region (open access)

Asian Carp and the Great Lakes Region

Report describing threats to waterways in the Great Lakes area by invasive carp species. It includes background about the various species, the potential negative impacts and federal responses, as well as litigation, international concerns (regarding Canada), and areas of interest for Congress.
Date: June 25, 2010
Creator: Buck, Eugene H.; Upton, Harold F.; Stern, Charles V. & Nichols, James E.
Object Type: Report
System: The UNT Digital Library
Wick Material (Illinois Patent). (open access)

Wick Material (Illinois Patent).

Patent for wick material, "composed of raw fibrous matter in layers or slivers in adhesive substance" (lines 16-17).
Date: July 1, 1890
Creator: Chapin, Myron H.
Object Type: Patent
System: The Portal to Texas History
Electromagnetic Ore-Separator. (open access)

Electromagnetic Ore-Separator.

Patent for an electromagnetic ore separator, which reduces the risk of any valuable particles falling with the waste mineral material below the magnetic surface.
Date: February 16, 1909
Creator: Charlton, Thomas
Object Type: Patent
System: The Portal to Texas History
The Hard Red Winter Wheats (open access)

The Hard Red Winter Wheats

This bulletin discusses the classes and varieties of hard red winter wheats and the areas in which they are successfully grown. Among the varieties discussed are Turkey, Kharkof, Kanred, Blackhull, Minturki, and Baeska.
Date: 1922
Creator: Clark, J. Allen (Jacob Allen), b. 1888 & Martin, John H. (John Holmes), 1893-
Object Type: Pamphlet
System: The UNT Digital Library
The Inflammability of Illinois Coal Dusts (open access)

The Inflammability of Illinois Coal Dusts

From Introduction: "The present paper is a report of a detailed study of the bituminous dusts of Illinois mines, and is a part of the investigations conducted by the bureau in cooperation with the Illinois State Geological Survey and the department of mining engineering of the University of Illinois."
Date: 1916
Creator: Clement, J. K. & Scholl, L. A., Jr.
Object Type: Report
System: The UNT Digital Library
Potash Salts from Texas-New Mexico Polyhalite Deposits: Commercial Possibilities, Proposed Technology, and Pertinent Salt-Solution Equilibria (open access)

Potash Salts from Texas-New Mexico Polyhalite Deposits: Commercial Possibilities, Proposed Technology, and Pertinent Salt-Solution Equilibria

From Introduction: "Figure 1 shows the location of sources that have been either exploited or seriously considered at one time or another, super-imposed upon a map indicating by small letters the order of consumption of K2O in the leading States; the amount used in these States, together with the percentage of the total consumption of potash used as fertilizer in the United States in 1939, is given in table 1. Figure 2 shows the domestic production and total consumption of potassium salts, in terms of tons of K2O, with the value per unit at the plants, for each year since 1913. Considered together, these two figures tell a significant story."
Date: 1944
Creator: Conley, John E. & Partridge, Everett P.
Object Type: Report
System: The UNT Digital Library
Preparation Characteristics of Illinois Coals (open access)

Preparation Characteristics of Illinois Coals

Report issued by the Bureau of Mines discussing the mechanical coal-preparation characteristics. As stated in the introduction, "this second publication reports the washability and screen analyses of the important Illinois coal beds, showing the quality of product that would result when the raw coal is subjected to preparatory treatment" (p. 1). This report includes tables, maps, and illustrations.
Date: 1949
Creator: Crentz, William L. & Fraser, Thomas
Object Type: Report
System: The UNT Digital Library