Collection
Office of Scientific & Technical Information Technical Reports
3,340
Congressional Research Service Reports
1,252
Texas Patents
654
United States Census Map Collection
650
Texas Attorney General Opinions
443
Technical Report Archive and Image Library
367
Government Accountability Office Reports
341
Defense Base Closure and Realignment Commission
304
National Advisory Committee for Aeronautics Collection
208
TRAIL Microcard Collection
126
16 More
Serial/Series Title
2010 Census P.L. 94-171 County Block Map
650
2005 BRAC Commission
304
NACA Research Memorandums
183
Texas Register
125
Atomic Energy Commission Reports
63
CRS Issue Briefs
61
House Concurrent Resolutions
51
79th Legislature of Texas
46
Oak Ridge National Laboratory Reports
33
IH 35E Project: Dallas and Denton Counties
30
184 More
Country
States
Decade
Month
Day
Language
7,738 Matching Results
Results open in a new window/tab.
prev
Results:
7,729 - 7,738 of
7,738
Cotton Gin.
Patent for a new and improved cotton gin. This design "has for its object to so attach the front and rollers to the device that the rollers may be cleaned and freed from trash, burrs, and seed, when necessary, without stopping the gin" (lines 14-18).
Date:
April 11, 1882
Creator:
Boatwright, Thomas
Object Type:
Patent
System:
The Portal to Texas History
Cotton Chopper and Cultivator
Patent for "a machine of this class which shall be simple in construction, durable, and effect ive in operation, and which may be easily manipulated" (lines 11-14).
Date:
March 11, 1890
Creator:
Porter, William Daniel
Object Type:
Patent
System:
The Portal to Texas History
Cross Sections for OCUSOL-A Program
The OCUSOL-A program (ORNL-CF-57-6-4) for Univac is a modification of the Eyewash (ORNL-1925) multi-group, multi-region reactor code. The group=energy-lethargy-temperature relationship are given in Table A. The element code numbers are given in Table B. The cross sections now on the sigma-tape are given in tables in the Appendix numbered with the element code number. This technical report explains the bases for choosing the cross sections.
Date:
June 11, 1957
Creator:
Roberts, J. T. & Alexander, L. G.
Object Type:
Report
System:
The UNT Digital Library
The Reaction of Zirconium with Uranium Dioxide
An investigation of the causes of observed explosive reaction of zirconium-coated uranium dioxide on dissolution in nitric acid was conducted. It was concluded that such a reaction is to be expected. Possible but unconfirmed methods of alleviating the problem are suggested.
Date:
June 11, 1957
Creator:
Robinson, M. T.
Object Type:
Report
System:
The UNT Digital Library
Experiments on the Release of Fission Products from Molten Reactor Fuels
Experiments in the controlled melting of irradiated fuel specimens, particularly of the APPR, STR, and MTR types, have confirmed that prolonged heating in air at temperatures in excess of the melting point results in the release of a large portion of the radioactivity. On the other hand, a moderate amount of heating in air or steam sufficient only to melt a specimen results mainly in the partial volatilization of rare gases, iodine, bromine, cesium, and rubidium. In the presence of air or water vapor, strontium and other fission products are not released. At trace concentration of fission products, slow melting of the APPR plate at 1525 C in air or steam effected the release of 50% of the rare gases, 33% of the iodine, 9% of the cesium, and traces of strontium. After 25% burn-up, the cesium value increased to about 60%. Aluminum alloy of the MTR type, also at trace concentration, upon melting at 700 C released up to 2% of the iodine, 10% of the rare gases, and negligible portions of other fission products. Zirconium alloy of the STR type after 15% burn-up, when melted at 1850 C, released up to 95% of the rare gases, 90% of …
Date:
March 11, 1958
Creator:
Parker, George W. & Creek, George E.
Object Type:
Report
System:
The UNT Digital Library
A Preliminary Study of Pre-Solvent Extraction Treatment of Stainless Steel-Uranium Fuels with Dilute Aqua Regia
The continuous dissolution of 304 stainless steel and stainless steel-UO2 alloy in dilute aqua regia was studied with subsequent stripping of the dissolver product to remove chloride ion. The process has the advantage of producing, by means of a simple head end treatment, a solvent extract feed in a conventional nitric acid medium so that existing solvent extraction processes, materials of construction and waste disposal methods can be used. The purposes of this study were to investigate the variables affecting the dissolution process and to obtain dissolver scale-up data, and to investigate the removal of chloride from the dissolver product and the variables affecting the stripping operation. A continuous flooded pot dissolver was used. It has the advantages of stability of operation and ease of control in comparison with column dissolvers and requires a minimum of mechanical processing prior to dissolution. Stripping of the dissolver product to remove chloride ion was studied in a 4-in. diameter Pyrex bubble-cap column containing 12 single bubble cap plates. Continuous dissolution rates and dissolver product stainless steel loading were correlated with aqua regia feed composition, acid feed rate and surface area exposed to reaction. Profiles of chloride concentration down the stripping column were obtained …
Date:
October 11, 1957
Creator:
Kitts, F. G. & Perona, J. J.
Object Type:
Report
System:
The UNT Digital Library
Cotton-Cleaner.
Patent for a machine that cleans cotton by placing the seed into a rotating cylinder it is carried and removed using air presser through spiral fan blades and pins to rid impurities, including illustrations.
Date:
September 11, 1860
Creator:
Smith, Charles
Object Type:
Patent
System:
The Portal to Texas History
Cotton-Chopper
Patent for a hoe-supported cotton chopper. Illustrations included.
Date:
April 11, 1911
Creator:
Carter, James F.
Object Type:
Patent
System:
The Portal to Texas History
Corn and Cotton Planter
Patent for a corn and cotton planter that can plant two rows at a time.
Date:
June 11, 1912
Creator:
Hooper, Martin T.
Object Type:
Patent
System:
The Portal to Texas History
Cotton Chopper
Patent for a cotton chopper. Illustration included.
Date:
May 11, 1909
Creator:
Dewald, Louis
Object Type:
Patent
System:
The Portal to Texas History