Special Collections Department
403 Parks Library
Iowa State University
Ames, IA 50011-2140

RS 17/1/4
Ames Laboratory
Research Notebooks and Reports, 1942-1957, undated


Descriptive summary

creator: Ames Laboratory
title: Research Notebooks and Reports
dates: 1942-1957, undated
extent: 8.61 linear feet (20 document box and 1 half-document box)
collection number: RS 17/1/4
repository: University Archives, Special Collections Department, Iowa State University.

 

Administrative information

access: Open for research
publication rights: Consult Head, Special Collections Department
preferred citation: Ames Laboratory Research Notebooks and Reports, RS 17/1/4, Special Collections Department, Iowa State University Library.

 

Abstract

Ames Laboratory had its beginnings in the Ames Project, a top secret chemical research and development program at Iowa State College (University) supporting the World War II Manhattan Project. The Ames Project developed an entirely new technology for the conversion of uranium ore to high-purity uranium metal and then used that technology to produce more than 2 million pounds between 1942 and 1946. In 1947, the United States Atomic Energy Commission officially established the Ames Laboratory as a national laboratory. The collection contains laboratory notebooks, research reports, and patents that document the laboratory experiments and research of the scientists.

 

Historical note

Ames Laboratory had its beginnings in the Ames Project, a top secret chemical research and development program at Iowa State College (University) supporting the World War II Manhattan Project. The Ames Project was started by Frank H. Spedding, Professor of Chemistry, who had been appointed by Arthur Compton as head of the Chemistry Division of the Manhattan Project's Metallurgical Laboratory at the University of Chicago. Instead of waiting for a laboratory to be built in Chicago, Spedding got a staff in place from among his graduate students in Ames, appointed professor of chemistry Harley Wilhelm as Associate Director, and got started doing research right away. The work of the Ames Project was thus performed under the auspices of the University of Chicago Metallurgical Laboratory.

Scientists in Chicago were working on a nuclear chain reaction experiment that required quantities of pure uranium in the tons; at the time, however, it was commercially available only in gram-quantities. Therefore, the Ames Project had two main challenges: (1) to develop a method for the production of pure uranium metal in large quantities, and (2) to develop a procedure for large-scale casting of the metal.

By early August 1942, the Ames Project scientists had found a way to successfully produce pure uranium in large amounts. In September, Dr. Wilhelm personally delivered an 11 pound ingot of pure uranium to the Chicago Metallurgical Laboratory. Later that week, the Ames Project had a $30,000 contract to produce 100 pounds of uranium per week for Chicago. They were to produce uranium for the Laboratory until such large-scale production could be taken over by industry.

After the nuclear chain reaction experiment was successful in Chicago, Ames needed to produce even more uranium for a larger reactor at Clinton Engineer Works in Oak Ridge, Tennessee. Production was stepped up from 3,600 pounds per week in early January 1943 to almost 36,000 pounds per week in May of that year. Ames ultimately produced 90% of the uranium that went into the Clinton reactor.

Uranium production by the Ames Project decreased as industry took over, but overall the Ames Project produced more than 2 million pounds of uranium between 1942 and 1946.

In 1947, the United States Atomic Energy Commission (AEC) officially established the Ames Laboratory as a national laboratory. The contract for the operation of the laboratory was awarded to Iowa State University under its Institute for Atomic Research (IAR), the administrative body for Ames Laboratory, and Spedding was appointed as its first director. In 1968, Spedding stepped down as director and was succeeded by Robert Hansen until 1988. In 1974, the IAR became the Energy and Mineral Resources Research Institute (EMRRI), responsible for administering the laboratory until 1987.

In 1974, the U.S. AEC was split into two new agencies, the Nuclear Regulatory Commission and the Energy Research and Development Administration (ERDA). The ERDA oversaw the work of Ames Laboratory and other national laboratories until 1977, when it was combined with the Federal Energy Administration to become the Department of Energy (DOE).

Ames Laboratory is currently a DOE research facility operated by Iowa State University. The Laboratory and University share facilities, functions, graduate students, and faculty/principle investigators.

After World War II, the Ames Laboratory specialized in rare metals and methods of achieving chemical transformation without the production of toxic waste. The Laboratory has expanded its scope beyond materials research, including research in photosynthesis, hazardous waste analysis, computer programming, quasicrystals, and nontraditional materials. Research programs in 2013 include Applied Mathematics and Computational Sciences; Division of Chemical and Biological Sciences; Division of Materials Sciences and Engineering; Environmental & Protection Sciences; and Simulation, Modeling & Decision Science.

 

Collection description

The collection (1942-1957, undated) contains laboratory notebooks, research reports, and patents. The laboratory notebooks were kept by individual scientists or groups of scientists working together and include details about experiments, research notes, and lists of references. The laboratory notebooks were cleared of their "secret" classification status during the 1950s. Some notebooks are physically present in the collection, while others are available only on microfilm. The research reports primarily contain monthly reports from various research groups and reports regarding specific research problems. The patents are those issued to Ames Project scientists, primarily for methods of preparation, extraction, and purification of various metals.

 

Related materials

Related collections in the Special Collections Department, Iowa State University Library include:

  • Ames Laboratory, ISC Technical Reports (RS 17/1/0/5)
  • Ames Laboratory, IS Technical Reports (RS 17/1/0/6)
  • Ames Laboratory Administrative Records (RS 17/1/3)
  • Ames Laboratory Oral History Collection (RS 17/1/5)
  • Frank H. Spedding Papers (RS 17/1/11)
  • Velmer Fassel Papers (RS 17/1/51)
  • Harley Wilhelm Papers (RS 17/1/53)
  • Harry J. Svec Papers (RS 13/6/53)
  • Department of Metallurgy Records (RS 11/12/4)
    		•

     

    Organization

    The collection is organized into three series:

     

    Description of series

    Series 1 Laboratory Notebooks 1942-1949, undated
    extent: 7.14 linear feet (17 document boxes)
    description: Contains laboratory notebooks kept by scientists working on the Ames portion of the Manhattan Project. Many of the notebooks contain fold-out charts and taped or pasted-in graphs. The notebooks were given an alpha-numeric code using both Roman and Greek letters. Some notebooks are physically present in the collection, while others are available only on microfilm. Notebooks are arranged alphabetically.

     

    Container list

    Box

    Folder

    Title

    Dates

    1

    1

    Index of Selected Notebooks on Microfilm

    1942-1945

    22

     

    Microfilms (reel numbers 1102 - 1106, see index) (in vault)

    1942-1945 circa

    23

     

    Microfilms (reel numbers 1107 - 1130, see index) (in vault)

    1942-1945 circa

    1

    2

    Ayers, Buell O. (BA-3)

    1945-1946

    1

    3

    Ayers, Buell O. (BA-5)

    1946-1948

    1

    4

    Baenziger, Norman C. (NB-1)

    1944

    1

    5

    Baenziger, Norman C. (NB-2)

    1944-1945

    2

    1

    Baenziger, Norman C. (NB-3)

    1944, undated

    2

    2

    Banks, Charles (CB-1)

    1944-1947

    2

    3

    Boyt, Jack (HE-2)

    1947

    2

    4

    Boyt, Jack (HE-3)

    1944-1945

    2

    5

    Brown, Horace D. (DB-2)

    1944-1946

    2

    6

    Brown, William S. (WSB-1)

    1947-1949

    3

    1

    Calkins, Vincent (Ψ-1)

    undated

    3

    2

    Christian, Darleane (DXC-1)

    1947

    3

    3

    Cline, Donald W. (DC-2)

    1945, undated

    3

    4

    Doigan, Paul (PD-1)

    1946-1947

    3

    5

    Ericson, Robert P. (RE-3)

    1944

    3

    6

    Feibig, Joseph G. (JF-4)

    1944

    4

    1

    Fornefeld, Eugene J. (EF-2)

    1943-1946 circa

    4

    2

    Fulmer, Robert E. (H-C-1)

    1943-1944

    4

    3

    Gladrow and Sleight (DU-1)

    1945

    4

    4

    Gladrow and Sleight (DU-2)

    1945

    4

    5

    Gladrow and Sleight (DU-3)

    1947

    5

    1

    Gladrow and Sleight (DU-4)

    1945

    5

    2

    Gladrow and Sleight (DU-5)

    1945-1946

    5

    3

    Gobush, Michael (MG-1)

    1945-1947 circa

    5

    4

    Gobush, Michael (MG-2)

    1946-1947

    6

    1

    Handlin, Louis (LH-3)

    1945

    6

    2

    Heidel, Robert H. (RHH-1)

    1946-1947

    6

    3

    Jensen, Erling (ENJ-1)

    1946-1947

    6

    4

    King, Leone (LK-1)

    1944-1945

    6

    5

    King, Leone (LK-2)

    1945-1946

    7

    1

    Larson, Edna Jane (EL-1)

    1946-1947

    7

    2

    Leachman, Robert B. (RL-1)

    1946-1947

    7

    3

    Leachman, Robert B. (RL-2)

    1946

    7

    4

    Lipkind, Henry (HL-3)

    1945-1947

    7

    5

    Lipkind, Henry (HL-4)

    1945-1947

    7

    6

    Martin, Don (DM-2)

    1947-1948

    8

    1

    Newton, Amos S. (S-B)

    1945-1946 circa

    8

    2

    Newton, Amos S. (S-C)

    1944-1946 circa

    8

    3

    Patterson, J. (JP-4)

    1945-1946

    8

    4

    Peterson, Daniel (Δ-2)

    1943 circa

    8

    5

    Pierick, Edward (EP-1)

    1944-1947

    9

    1

    Porter, Paul (PP-2)

    1946-1947

    9

    2

    Powell, Butler & Figard (BεΣ-1)

    1945-1947

    9

    3

    Powell, Butler & Figard (BεΣ-2)

    1945-1946

    9

    4

    Powers, Richard (RP-1)

    1946-1947

    9

    5

    Pratt, William (WWP-1)

    1947

    10

    1

    Rundle, Robert (RR-1)

    1942-1945

    10

    2

    Skar, Robert (RCS-1)

    1947

    10

    3

    Smith, Frank (EE-1)

    1944

    10

    4

    Smith, Frank (EE-2)

    1944, undated

    10

    5

    Smith, Robert (RS-2)

    undated

    11

    1

    Snow, Adolph (AS-3)

    1944

    11

    2

    Sullivan, W.H. (V-3)

    1943-1944

    11

    3

    Summerwell, Jean (JS-1)

    1946

    11

    4

    Tevebaugh, Arthur D. (W-4)

    1943 circa

    11

    5

    Tevebaugh, Arthur D. (W-11)

    1947

    12

    1

    Tevebaugh, Arthur D. (W-12)

    1947

    12

    2

    Tevebaugh, Arthur D. (W-13)

    1945

    12

    3

    Tevebaugh, Ruth (β-1)

    1943

    12

    4

    Tevebaugh, Ruth (β-3)

    1943-1944

    12

    5

    Thompson, Richard H. (EA-3)

    1947

    13

    1

    Vaslow, Fred (θ-1)

    1943-1945

    13

    2

    Voter, Roger (RCV-1)

    1946-1947

    13

    3

    Walsh, Kenneth (Φ-1)

    1943

    13

    4

    Walsh, Kenneth (Φ-2)

    1943 circa

    13

    5

    Walsh, Kenneth (Φ-3)

    1943, undated

    14

    1

    Walsh, Kenneth (Φ-4)

    undated

    14

    2

    Warf, Elizabeth (λ-1)

    1943-1945

    14

    3

    Warf, Elizabeth (λ-2)

    1943

    14

    4

    Warf, Elizabeth (λ-N)

    undated

    14

    5

    Warf, Elizabeth (λ-P)

    undated

    14

    6

    Warf, James (X-6)

    1945-1947

    15

    1

    Williams, Wayne (WW-1)

    1946

    15

    2

    Wilson, Archie (AW-2)

    1943-1944

    15

    3

    Wilson, Archie (AW-3)

    1944-1945

    15

    4

    Wilson, Archie (AW-5)

    1945-1946

    16

    1

    Wilson, Archie (AW-6)

    1946

    16

    2

    Wimmer, Eugenie (EW-1)

    1944

    16

    3

    Wolter, Frederick (Y-2)

    1942-1943

    16

    4

    Wright, James (JW-4)

    undated

    16

    5

    Wright, James (JW-6)

    1944

    17

    1

    Wright, James (JW-7)

    undated

    17

    2

    Wright, James (JW-8)

    1946-1947

    17

    3

    Wright, James (JW-9)

    1946

    17

    4

    Wright, James (JW-10)

    1946-1947

     

    Description of series

    Series 2 Research Reports 1942-1946, undated
    extent: 1 linear foot (2.15 document cases)
    description: Contains research reports of the Ames Project scientists, primarily in the form of monthly reports from various research groups, including analytical chemistry, general chemistry, radiochemistry, chemistry of plutonium (or chemistry of element 94), and technological research in metallurgy, as well as reports of specific research problems. Folder titles include a letter-number code, report author(s), and report title. This series is arranged alphabetically by letter-number code, which is generally chronological within a code-letter series.

     

    Container list

    Box

    Folder

    Title

    Dates

    18

    1

    A-1024: Keller, W.H., "Progress Report on Study of Factors Affecting Reduction of Green Salt to Metal"

    1944

    18

    2

    CC-275: Spedding, Johns, Newton, Sullivan, and Voigt, "Preliminary Report of the Ames Chemical Group on Diffusion of Fission Products from U3O8 and Sintered Metal"

    1942

    18

    3

    CC-298: Compton, Metallurgical Project, Report for month ending October 15

    1942

    18

    4

    CC-327: Spedding, "The Diffusion of Fission Products from Cast Metal at 600° C and 1000° C"

    1942

    18

    5

    CC-342 (part G): Spedding, Johns, Ames Chemical and Metallurgical Group, Report for month ending November 15

    1942

    18

    6

    CC-354: Spedding, "The Diffusion of Fission Products from Cast Uranium at 1800°"

    1942

    18

    7

    CC-355: Johns, Newton, Gladrow, "Effect of Temperature on the Surface of Cast Uranium Metal"

    1943

    18

    8

    CC-389: Compton, Metallurgical Project, Report for month ending December 15

    1942

    18

    9

    CC-390: Johns, Newton, and Sullivan, "The Diffusion of Fission Products from Polished and Unpolished Metal at 600° C"

    1942

    18

    10

    CC-418: Compton, Metallurgical Project, Report for month ending January 15

    1943

    18

    11

    CC-682: Warf, Chemical Research - Analytical and General, Report for month ending May 15

    1943

    18

    12

    CC-700: Johns, Newton, Sullivan, and Voight, "The Diffusion of Fission Products from Uranium," errata for reports CC-594 and CC-616

    undated

    18

    13

    CC-726: Warf, Chemical Research - Analytical, Report for month ending June 15

    1943

    18

    14

    CC-765: Sullivan, "Chemical Methods for the Separation of the Fission Products"

    1943

    18

    15

    CC-794: Warf, Chemical Research - Analytical, Report for month ending July 15

    1943

    18

    16

    CC-803: Johns, Chemical Research - General, Report for month ending July 15

    1943

    18

    17

    CC-837: Johns, Chemical Research - Radiochemistry, Report for month ending July 15

    1943

    18

    18

    CC-858: Johns, Chemical Research - General, Report for month ending August 7

    1943

    18

    19

    CC-862: Warf, Chemical Research - Analytical, Report for month ending August 8

    1943

    18

    20

    CC-921: Johns, Chemical Research - Radiochemistry, Report for month ending September 15

    1943

    18

    21

    CC-1057: Warf, Chemical Research - Analytical, Report for month ending November 6

    1943

    18

    22

    CC-1059: Johns, Chemical Research - Radiochemistry, Report for month ending October 9

    1943

    18

    23

    CC-1061: Warf, Chemical Research - Analytical, Report for month ending October 8

    1943

    18

    24

    CC-1063: Johns, Chemical Research - Radiochemistry, Report for month ending November 4

    1943

    18

    25

    CC-1091: Warf, Chemical Research - Analytical, Report for month ending January 7

    1944

    18

    26

    CC-1194: Warf, Chemical Research - Analytical, Report for month ending December 9

    1943

    18

    27

    CC-1212: Johns, Chemical Research - General, Report for month ending December 10

    1943

    18

    28

    CC-1244: Johns, Chemical Research - Radiochemistry, Report for month ending January 8

    1944

    18

    29

    CC-1245: Johns, Chemical Research - General, Report for month ending January 8

    1944

    18

    30

    CC-1496: Wilhelm, Chemical Research - General Chemistry, Report for month ending April 10

    1944

    18

    31

    CC-1500: Wilhelm, Chemical Research - General, Report for month ending May 10

    1944

    18

    32

    CC-1502: Tevebaugh, "A Method for Determining Fluorine in Uranium Metal"

    1944

    18

    33

    CC-1517: Wilhelm, Chemical Research - Analytical, Report for month ending March 10

    1944

    18

    34

    CC-1774: Wilhelm, Chemical Research - Analytical, Report for month ending June 10

    1944

    18

    35

    CC-1778: Wilhelm, Chemical Research - General, Report for month ending July 10

    1944

    18

    36

    CC-1975: Wilhelm, Chemical Research - General, Report for month ending September 10

    1944

    18

    37

    CC-1981: Warf, Chemical Research - Analytical, Report for month ending October 10

    1944

    18

    38

    CC-1983: Wilhelm, Chemical Research - Analytical, Report for month ending November 10

    1944

    19

    1

    CC-1984: Wilhelm, Chemical Research - General, Report for month ending November 10

    1944

    19

    2

    CC-2393: Spedding, Kant, Wright, Warf, Powell, and Newton, "Extraction Purification of Thorium Nitrate"

    1945

    19

    3

    CC-3248: Spedding, Gladrow, Sleight, Voight, Butler, Powell, Figard, and Wright, "Progress Report on the Adsorption Process for Separating the Rare Earths"

    1946

    19

    4

    CE-345: Compton, Metallurgical Project, Report for month ending November 15

    1942

    19

    5

    CF-348: Compton, Metallurgical Project, Report for month ending November 15

    1942

    19

    6

    CK-1494: Wilhelm, Chemical Research - Purification of Pu and U, Report for month ending April 10

    1944

    19

    7

    CK-1516: Wilhelm, Chemical Research - Chemistry of Plutonium, Report for month ending March 10

    1944

    19

    8

    CK-1526: Wilhelm, Chemical Research - Purification of Pu and U, Report for month ending March 10

    1944

    19

    9

    CN-261: Compton, Metallurgical Project, Report for month ending September 15

    1942

    19

    10

    CN-315: Compton, Metallurgical Project, Report for month ending October 15

    1942

    19

    11

    CN-343: Compton, Metallurgical Project, Report for month ending November 15

    1942

    19

    12

    CN-391: Compton, Metallurgical Project, Chemistry of 94

    1942

    19

    13

    CN-522: Compton, Metallurgical Project, Report for month ending March 15

    1943

    19

    14

    CN-578: Johns, Chemical Research - Chemistry of 94, Report for month ending April 15

    1943

    19

    15

    CN-678: Johns, Chemical Research - Chemistry of 94, Report for month ending May 15

    1943

    19

    16

    CN-717: Johns, Chemical Research - Chemistry of 94, Memo on a Suggested Improvement to the Dry Fluoride Process for Separating 94

    1943

    19

    17

    CN-727: Johns, Chemical Research - Chemistry of 94, Report for month ending June 15

    1943

    19

    18

    CN-795: Johns, Chemical Research - Chemistry of 94, Report for month ending July 15

    1943

    19

    19

    CN-852: Johns, Chemical Research - Chemistry of 94, Report for month ending August 8

    1943

    19

    20

    CN-925: Johns, Chemical Research - Chemistry of 94, Report for month ending September 8

    1943

    19

    21

    CN-1048: Johns, Chemical Research - Chemistry of 94, Report for month ending October 8

    1943

    19

    22

    CN-1058: Johns, Chemical Research - Chemistry of Plutonium, Review of the Metallurgical Properties of Tracer Plutonium

    1943

    19

    23

    CN-1060: Johns, Chemical Research - Chemistry of Plutonium, Report for month ending November 8

    1943

    19

    24

    CN-1199: Johns, Chemical Research - Chemistry of 94, Report for month ending December 10

    1943

    19

    25

    CN-1243: Johns, Chemical Research - Chemistry of Plutonium, Report for month ending January 8

    1944

    19

    26

    CN-1495: Wilhelm, Chemical Research - Chemistry of Plutonium, Report for month ending April 10

    1944

    19

    27

    CN-1777: Wilhelm, Chemical Research - Chemistry of Plutonium, Report for month ending July 10

    1944

    19

    28

    CN-1783: Wilhelm, Chemical Research - Chemistry of Plutonium, Report for month ending August 10

    1944

    19

    29

    CN-1976: Wilhelm, Chemical Research - Chemistry of Plutonium, Report for month ending September 10

    1944

    19

    30

    CN-1979: Wilhelm, Chemical Research - Chemistry of Plutonium, Report for month ending October 10

    1944

    19

    31

    CN-1985: Wilhelm, Technological Research - Metallurgy, Report for month ending November 10

    1944

    19

    32

    CS-373: Spedding, Availability of Materials, Metal Production

    1942

    19

    33

    CS-395: Compton, Metallurgical Project, Report for month ending December 15

    1942

    19

    34

    CT-393: Technological Research, Report for month ending December 15

    1942

    19

    35

    CT-456: Butler, Report on Recasting Uranium Metal in Air

    undated

    19

    36

    CT-490: Compton, Metallurgy Laboratory, Report for month ending February 20

    1943

    19

    37

    CT-542: Wilhelm, Technological Research - Metallurgy, Part E, Report for month ending March 27

    1943

    19

    38

    CT-583: Johns and Newton, The Hydride Reaction as a Means of Testing the Continuity of Coatings

    1943

    19

    39

    CT-609: Wilhelm, Technological Research - Metallurgy, Part II of Report for month ending April 24

    1943

    20

    1

    CT-686: Wilhelm, Technological Research - Metallurgy, Part II of Report for month ending May 22

    1943

    20

    2

    CT-751: Carter, Technological Research - Metallurgy, Part II of Report for month ending June 24 (A, B, & C)

    1943

    20

    3

    CT-816: Spedding, Technological Research - Metallurgy, Part II of report for month ending July 24

    1943

    20

    4

    CT-891: Spedding, Technological Research - Metallurgy, Part II of report for month ending August 21

    1943

    20

    5

    CT-954: Spedding, Technological Research - Metallurgy, Part II of report for month ending October 2

    1943

    20

    6

    CT-1007: Technological Research - Metallurgy, Part II of report for month ending October 24

    1943

    20

    7

    CT-1062: Carter, Technological Research - Metallurgy, Review of Metallography of Uranium and Some of its Binary Alloys

    1943

    20

    8

    CT-1102: Wilhelm, Technological Research - Metallurgy, Part II of report for month ending November 28

    1943

    20

    9

    CT-1270: Wilhelm & Daane, Technological Research - Metallurgy, Part II of report for month ending January 28

    1944

    20

    10

    CT-1501: Wilhelm, Metallurgical Research, Report for month ending May 10

    1944

    20

    11

    CT-1515: Wilhelm, Metallurgical Research, Report for period of February 1 to March 10

    1944

    20

    12

    CT-1775: Wilhelm, Metallurgical Research, Report for month ending June 10

    1944

    20

    13

    CT-1780: Wilhelm, Metallurgy, Report for month ending July 10

    1944

    20

    14

    CT-1977: Wilhelm, Technological Research - Metallurgy, Report for month ending September 10

    1944

    20

    15

    CT-1982: Wilhelm, Technological Research - Metallurgy, Report for month ending October 10

    1944

    20

    16

    CT-2711: Spedding, Wilhelm, and Keller, Production of Uranium by Reduction of Uranium Tetrafluoride by Calcium

    1945

    20

    17

    CT-2949: Spedding, Wilhelm, Keller, Peterson, and Lyon, The Small Scale Preparation of Uranium by the Reduction of Its Halides with Calcium

    1945

    20

    18

    CT-2950: Spedding, Wilhelm, Keller, Iliff, Neher, The Production of Thorium Metal by the Metallothermic Reduction of Thorium Fluoride

    1945

     

    Description of series

    Series 3 Patents
    1948-1957
    extent: 55 folders
    description: Contains patents issued to Ames Project scientists, primarily for methods of preparation, extraction, and purification of various metals, including rare earth elements. Folder titles include the inventor(s), the title of the patent, patent number in parentheses, and patent date in parentheses. This series is arranged chronologically.

     

    Container list

    Box

    Folder

    Title

    Dates

    20

    19

    Newton, A.S., Method of Preparing Uranium Hydride (2,446,780) (August 10)

    1948

    20

    20

    Wilhelm, Harley A., and Adrian H. Daane, Uranium Monocarbide and Method of Preparation (2,448,479) (August 31)

    1948

    20

    21

    Newton, A.S., Method of Preparing Uranium Deuteride (2,452,139) (October 26)

    1948

    20

    22

    Newton, A.S., Nitrogen Purification Process (2,487,360) (November 8)

    1949

    20

    23

    Wilhelm, Harley A., and Park S. Gerald, Carbonaceous Articles and Production Thereof (2,521,495) (September 5)

    1950

    20

    24

    Newton, Amos S., Method of Purifying Inert Gases (2,521,937) (September 12)

    1950

    20

    25

    Warf, James C., Extraction Process for Cerium (2,523,892) (September 26)

    1950

    20

    26

    Carter, James H., and Adrian H. Daane, Method of Forming Uranium Carbon Alloys (2,526,805) (October 24)

    1950

    20

    27

    Newton, Amos S., Purification of Hydrogen (2,533,138) (December 5)

    1950

    20

    28

    Newton, Amos S., and Oliver Johnson, Preparation of Compounds of Uranium and Nonmetals (2,534,676) (December 19)

    1950

    20

    29

    Newton, Amos S., and Oliver Johnson, Production of Uranium Halides (2,534,677) (December 19)

    1950

    20

    30

    Warf, J.C., Preparation of Uranium Hydride (2,536,616) (January 2)

    1951

    20

    31

    Spedding, Frank H., and Adolf F. Voigt, Rare Earth Separation by Adsorption and Desorption (2,539,282) (January 23)

    1951

    20

    32

    Newton, Amos S., and Oliver Johnson, Preparation of Uranium Nitride (2,544,277) (March 6)

    1951

    20

    33

    Powell, Jack E., Preparation of Uranium Bromide (2,562,122) (July 24)

    1951

    20

    34

    Warf, James C., Extraction Process for Cerium (2,564,241) (August 14)

    1951

    20

    35

    Ayres, John A., Zirconium and Hafnium Recovery and Purification Process (2,567,661) (September 11)

    1951

    20

    36

    Carter, James H., and Adrian H. Daane, Method of Forming Uranium Monocarbide (2,569,225) (September 25)

    1951

    20

    37

    Hansen, Robert S., Adsorption of Zirconium and Hafnium (2,571,237) (October 16)

    1951

    20

    38

    Daane, Adrian H., and William K. Noyce, Uranium-Cobalt Alloy (2,574,626) (November 13)

    1951

    20

    39

    Daane, Adrian H., and William K. Noyce, Uranium-Cobalt Alloy (2,574,627) (November 13)

    1951

    20

    40

    Fisher, Ray W., Method of Forming Uranium Carbide (2,580,349) (December 25)

    1951

    20

    41

    Gray, C.F., Casting Apparatus (2,586,027) (February 19)

    1952

    20

    42

    Newton, Amos S., Method of Making Metal Hydride (2,588,153) (March 4)

    1952

    20

    43

    Carlson, Oscar N., and Harley A. Wilhelm, Quaternary Bismuth Alloy (2,595,924) (May 6)

    1952

    20

    44

    Carlson, Oscar N., and Harley A. Wilhelm, Quaternary Bismuth Alloy (2,595,925) (May 6)

    1952

    20

    45

    Wilhelm, Harley A., and Kenneth A. Walsh, Method of Producing Zirconium Tetrafluoride (2,602,725) (July 8)

    1952

    20

    46

    Wilhelm, Harley A., Apparatus for Chemical Reaction Detection (2,614,645) (October 21)

    1952

    21

    1

    Powell, Jack E., Preparation of Uranium Bromide (2,635,035) (April 14)

    1953

    21

    2

    Wilhelm, Harley A., and Kenneth A. Walsh, Preparation of Zirconium Tetrafluoride (2,635,037) (April 14)

    1953

    21

    3

    Walsh, Kenneth A., and Harley A. Wilhelm, Production of Granular Beryllium Fluoride (2,635,944) (April 21)

    1953

    21

    4

    Wilhelm, Harley A., and Premo Chiotti, Preparation of Powdered Thorium (2,635,956) (April 21)

    1953

    21

    5

    Tevebaugh, Arthur D., and Fred Vaslow, Production of Uranium Tetrafluoride (2,638,406) (May 12)

    1953

    21

    6

    Wilhelm, Harley A., and John Reed Long, Production of Vanadium Metal (2,700,606) (January 25)

    1955

    21

    7

    Spedding, Frank H., and Adrian H. Daane, Method of Producing Gadolinium (2,714,554) (August 2)

    1955

    21

    8

    Plucknett, William K., Separation of Hafnium and Zirconium Salts (2,741,628) (April 10)

    1956

    21

    9

    Wilhelm, Harley A., and Kenneth A. Walsh, Solvent Extractions of Zirconium Values (2,753,250) (July 3)

    1956

    21

    10

    Whatley, Marvin E., Mixer-Settler (2,754,179) (July 10)

    1956

    21

    11

    Wilhelm, Harley A., and James V. Kerrigan, Process of Separating Tantalum and Niobium Values from Each Other (2,767,047) (October 16)

    1956

    21

    12

    Spedding, Frank H., and Thomas A. Butler, Plutonium Alloy and Method of Separating it from Uranium (2,778,730) (January 22)

    1957

    21

    13

    Brown, Horace D., and Frederick J. Wolter, Uranium Chelates of Di(Salicylal)alkylenediimine and Process for Their Preparation (2,778,843) (January 22)

    1957

    21

    14

    Wilhelm, Harley A., and Donald H. Ahmann, Electrodeposition of Uranium (2,781,304) (February 12)

    1957

    21

    15

    Spedding, Frank H., Harley A. Wilhelm, and Wayne H. Keller, Method of Preparing Metals from Their Halides (2,782,116) (February 19)

    1957

    21

    16

    Wilhelm, Harley A., and C.F. Gray, Method of Reclaiming Uranium (2,782,117) (February 19)

    1957

    21

    17

    Wilhelm, Harley A., and C.F. Gray, Apparatus for Vacuum Casting of Uranium (2,782,475) (February 26)

    1957

     21

    18

    Carter, James H., and Thomas A. Butler, Separation of Uranium from Other Metals by Hydriding and Extraction with Oxidizing Reagents (2,784,054) (March 5)

    1957

    21

    19

    Butler, Thomas A., Separation of Uranium from Other Metals by Hydriding (2,785,046) (March 12)

    1957

    21

    20

    Wilhelm, Harley A., Method of Forming Crucibles and Reaction Chambers for Production of Uranium of High Purity (2,785,064) (March 12)

    1957

    21

    21

    Spedding, Frank H., Harley A. Wilhelm, and Wayne H. Keller, Method of Producing Metals from Their Halides (2,785,065) (March 12)

    1957

    21

    22

    Spedding, Frank H., and Harley A. Wilhelm, Process for Melting and Refining Uranium (2,787,536) (April 2)

    1957

    21

    23

    Wilhelm, Harley A., Method of Producing Metal (2,787,537) (April 2)

    1957

    21

    24

    Spedding, Frank H., Harley A. Wilhelm, and Wayne H. Keller, Production of Uranium (2,787,538) (April 2)

    1957

    21

    25

    Peterson, David, Production of Metals (2,795,499) (June 11)

    1957

    21

    26

    Spedding, Frank Harold, and Arthur Kant, Solvent Extraction Process for Purification of Thorium (2,796,320) (June 18)

    1957

    21

    27

    Spedding, Frank H., Harley A. Wilhelm, and Wayne H. Keller, Production of Zirconium (2,797,160) (June 25)

    1957