Collection
United States Census Map Collection
298
USGS Topographic Map Collection
141
Texas State Publications
32
Texas Patents
21
Office of Scientific & Technical Information Technical Reports
4
Texas Attorney General Opinions
4
Texas Soil Surveys
2
Texas Laws and Resolutions Archive
1
Technical Report Archive and Image Library
1
Serial/Series Title
2000 Census County Subdivision Block Map
64
2010 Census County Block Map
58
2010 Census P.L. 94-171 County Block Map
58
2000 Census County Block Map
54
1990 Census County Block Map
53
7.5 Minute Series (Topographic)
44
Digital US Topo Maps: 7.5 Minute Series (Topographic)
40
Digital Raster Graphic Topographic Maps: 7.5 Minute Series (Topographic)
20
Western United States 1:250,000
17
San Antonio River Authority Annual Report
12
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504 Matching Results
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504
Uranium series disequilibrium in the Bargmann property area of Karnes County, Texas
Historical evidence is presented for natural uranium series radioactive disequilibrium in uranium bearing soils in the Bargmann property area of karnes County on the Gulf Coastal Plain of south Texas. The early history of uranium exploration in the area is recounted and records of disequilibrium before milling and mining operations began are given. The property contains an open pit uranium mine associated with a larger ore body. In 1995, the US Department of Energy (DOE) directed Oak Ridge National Laboratory (ORNL) to evaluate the Bargmann tract for the presence of uranium mill tailings (ORNL 1996). There was a possibility that mill tailings had washed onto or blown onto the property from the former tailings piles in quantities that would warrant remediation under the Uranium Mill Tailings Remediation Action Project. Activity ratios illustrating disequilibrium between {sup 226}Ra and {sup 238}U in background soils during 1986 are listed and discussed. Derivations of uranium mass-to-activity conversion factors are covered in detail.
Date:
February 1, 1998
Creator:
Davidson, J. R.
Object Type:
Report
System:
The UNT Digital Library
Animal Trap.
Patent for Animal Trap especially adapted for the extermination of mice and similar rodents.
Date:
1920-09-5
Creator:
Fredrick, Willaim.
Object Type:
Patent
System:
The Portal to Texas History
Cotton Cleaner and Separator.
Patent for cotton cleaner and separator. This will allow cotton to be cleaned without twisting or tangling, while removing dust, dirt and leaves.
Date:
February 14, 1922
Creator:
Hillmann, Charles
Object Type:
Patent
System:
The Portal to Texas History
Region, Volume 16, Number 9, September/October 1989
Monthly newsletter of the Alamo Area Council of Governments describing news and events of relevance to the agencies.
Date:
September 1989
Creator:
Alamo Area Council of Governments
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Region, Volume 17, Number 1, January/February 1990
Monthly newsletter of the Alamo Area Council of Governments describing news and events of relevance to the agencies.
Date:
January 1990
Creator:
Alamo Area Council of Governments
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
San Antonio River Authority Annual Report: 1992
Annual report of the San Antonio River Authority describing goals, activities, and accomplishments during fiscal year 1992.
Date:
1993~
Creator:
San Antonio River Authority
Object Type:
Report
System:
The Portal to Texas History
San Antonio River Authority Annual Report: 1991
Annual report of the San Antonio River Authority describing goals, activities, and accomplishments during fiscal year 1991.
Date:
1992~
Creator:
San Antonio River Authority
Object Type:
Report
System:
The Portal to Texas History
Wrench
Patent for an improved model of wrench, designed to work upon the bore of tubes, thimbles, and other forms of pipes. This invention improves on the construction of the wrench, allowing it to be inserted in the end of a tube, and when rotated, be effectively engaged with the tube to turn the same.
Date:
March 6, 1917
Creator:
Brown, Charley S.
Object Type:
Patent
System:
The Portal to Texas History
Traction-Wheel
Patent for a traction wheel with a removable gripping surface which will prevent the wheel from slipping on roads or slick surfaces.
Date:
January 19, 1915
Creator:
Biela, Valentine
Object Type:
Patent
System:
The Portal to Texas History
Mud Guard.
Patent for an attachable mud guard for any vehicle, including instructions and illustrations.
Date:
August 25, 1914
Creator:
Johnson, Tom L.
Object Type:
Patent
System:
The Portal to Texas History
Pneumatic Cotton Picker
Patent for an improved Pneumatic Cotton Picker. This invention was created to eliminate the tendancy for leaves to be bundled in with the cotton when picked by other Pneumatic Cotton Pickers.
Date:
December 10, 1918
Creator:
Radford, Will H.
Object Type:
Patent
System:
The Portal to Texas History
Sulky-Plow.
Patent for certain new and useful improvements in sulky plows, including instructions and illustrations.
Date:
October 18, 1898
Creator:
Labus, John
Object Type:
Patent
System:
The Portal to Texas History
Hay Press
Patent for a hay press. This invention includes a reciprocating plunger with plunger heads and designed to work in separate compressing chambers. Illustrations included.
Date:
May 19, 1908
Creator:
Biela, Valentine
Object Type:
Patent
System:
The Portal to Texas History
Gear-Wheel.
Patent for the construction of a wheel and gear rim that converts any ordinary vehicle wheel into a gear wheel.
Date:
June 8, 1915
Creator:
Biela, Valentine
Object Type:
Patent
System:
The Portal to Texas History
Hay-Press.
Patent for improving baling presses by reconstructing the press to make it more efficient and simple. Also, this improvement allows the plunger to automatically return after the press stroke is finished.
Date:
March 11, 1919
Creator:
White, John F.
Object Type:
Patent
System:
The Portal to Texas History
Sanitary Drinking-Fountain.
Patent for improvement in sanitary drinking fountains by providing a device in which the “discharge nozzle of the fountain is protected against contact with the mouth of the user, thereby enhance the sanitary nature of the fountain” (lines 16-20). Illustration is included.
Date:
October 7, 1913
Creator:
Moore, Isham S.
Object Type:
Patent
System:
The Portal to Texas History
Folding Umbrella.
Patent for an improved folding umbrella consisting of folding ribs and braces. Additionally, the staff of the umbrella is separable so that the staff can be shortened when the umbrella is closed.
Date:
June 10, 1913
Creator:
Allen, George W.
Object Type:
Patent
System:
The Portal to Texas History
Foot Piece for Cultivators.
Patent for foot pieces of "simple and improved construction whereby the cultivator blade will be held in ground engaging position resiliently with sufficient force to maintain it properly in position in varying conditions of the soil" (lines 10-15). The foot pieces allow for variation in the force with which the blade is maintained in ground, the blade being "quickly and conveniently changed" (lines 24-25).
Date:
March 13, 1917
Creator:
Myers, Jim H.
Object Type:
Patent
System:
The Portal to Texas History
Fence.
Patent for a new and improved fence. This design consists in "[t]he combination of the fence-wires, the stay-rods having their lower ends fitted in the ground and provided with a series of steps or rests fitted to the fence wires, a series of tie-wires securing the fence-wires to said steps, and braces twisted around the stay-rods near the upper ends thereof and having their ends secured to buried anchors" (lines 59-66).
Date:
February 7, 1888
Creator:
Lott, Arthur
Object Type:
Patent
System:
The Portal to Texas History
Safe
Patent for a safe. Illustration included.
Date:
March 22, 1910
Creator:
Smith, Virgil A.
Object Type:
Patent
System:
The Portal to Texas History
Grubbing Plow
Patent for a grubbing plow. Illustration included.
Date:
April 5, 1910
Creator:
Jauer, Christman D.
Object Type:
Patent
System:
The Portal to Texas History
Plowshare Attachment.
Patent for a plowshare attachment, which will allow a new replacement part when this part is no longer in working condition.
Date:
June 11, 1912
Creator:
Hickle, Pryor H.
Object Type:
Patent
System:
The Portal to Texas History
Planter.
Patent for a planter for planting cotton seed, which can be used with a walking or wheeled planter and automatically drops seeds when moving forward but not backward, and which can have the mechanism turned off while in transit.
Date:
July 2, 1907
Creator:
Vaughn, George Washington
Object Type:
Patent
System:
The Portal to Texas History
Plowshare for Grubbing-Plows, &c.
Patent for a plowshare for grubbing plows and other plows used for clearing through timber. Illustrations included.
Date:
May 3, 1910
Creator:
Jauer, Christman D.
Object Type:
Patent
System:
The Portal to Texas History