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Articles 194761 - 194790 of 196384

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Copper Commando - Vol. 1, No. 21, Special Issue, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Jun 1943

Copper Commando - Vol. 1, No. 21, Special Issue, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue...Copper, war, Brehon Somervell, War Department; Copper in: Signal Corps equipment, planes, M-4 tanks, medical equipment, ordnance, PT boats and battleships, second front, materials

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Flotation Of A Complex Sulphide Ore Containing Tetrahedrite, James C. O'Dea, Lorimer W. Hoar Jun 1943

Flotation Of A Complex Sulphide Ore Containing Tetrahedrite, James C. O'Dea, Lorimer W. Hoar

Bachelors Theses and Reports, 1928 - 1970

The ore investigated in this thesis is a zinc-copper-lead ore. Microscopic analysis of this complex sulphide ore showed it to contain pyrite, sphalerite, arsenopyrite, galena, chalcopyrite, tetrahedrite, and covellite, with quartz as the gangue constituent.

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Copper Commando - Vol. 1, No. 20, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls May 1943

Copper Commando - Vol. 1, No. 20, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue...Donald (Lefty) Orlich, Motor Transport, Africa, salvage drives, Marg Sammons, diamond (bit) drilling, war weapons, ships, planes, copper, molten metal, anodes, reduction works, Great Northern, Great Falls, medical equipment,

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Copper Commando - Vol. 1, No. 19, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls May 1943

Copper Commando - Vol. 1, No. 19, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue...Tabaracci family, war effort, cadmium, rust, Great Falls, dynamite, primers, powders, newspaper coverage, reverberatory furnaces, converters, copper, Joe Dee, smelter, machinist, Belmont, flying fortress, machine guns

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The Electrodeposition Of Chromium From Trivalent Salt Solutions, Bahri Ersoz May 1943

The Electrodeposition Of Chromium From Trivalent Salt Solutions, Bahri Ersoz

Bachelors Theses and Reports, 1928 - 1970

The enormous number of previous experiments and researches for the improvement of the commercial chromic acid bath, did not succeed even in the partial elimination of any one of the disadvantages of chromic acid bath. This led the author to believe that the poor performance is an inherent quality of the chromic acid bath, and is due to the fact that the deposition occurs from the higher state of oxidation.

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Bright Electroplating Of Copper In The Acid Bath, Elwood K. Jensen May 1943

Bright Electroplating Of Copper In The Acid Bath, Elwood K. Jensen

Bachelors Theses and Reports, 1928 - 1970

Plating of various objects with mirror-like surfaces of chromium, nickel, and other metals has expanded considerably during the past decade, and now ranks as an important enterprise, particularly with respect to the automotive industry.

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The Effect Of Boron On The Hardenability Of Steel, William J. Foy May 1943

The Effect Of Boron On The Hardenability Of Steel, William J. Foy

Bachelors Theses and Reports, 1928 - 1970

Many attempts have been made to improve iron and steel and their alloys by the addition of boron. The re­sults obtained were not encouraging for the reason that the amount of boron used, generally from 0.2 to 2.0 per cent is altogether too high. This percentage of boron ren­ders the product hard and brittle and of late the experiments with boron in this connection have been practically abandoned.

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An Attempt To Increase The Permeability And Porosity Of The Cut Bank Oil Sand By Treatment With Various Reagents, Donald H. Johnson May 1943

An Attempt To Increase The Permeability And Porosity Of The Cut Bank Oil Sand By Treatment With Various Reagents, Donald H. Johnson

Bachelors Theses and Reports, 1928 - 1970

The purpose of this investigation was to attempt to find some means of increasing the effective porosity and permeabil­ity of the producing sands of the Cut Bank Oil Field, with the hope that thereby the ultimate recovery of petroleum from this field may be increased. Although the percentage increase in production thus effected would undoubtedly be small, it would represent a substantial volume of petroleum in view of the great quantity of oil and gas present in this field.

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Geology And Occurence Of Graphite At The Crystal Graphite Mine Near Dillon, Montana, Charles K.W. Hum Hum May 1943

Geology And Occurence Of Graphite At The Crystal Graphite Mine Near Dillon, Montana, Charles K.W. Hum Hum

Bachelors Theses and Reports, 1928 - 1970

The problem to be considered embraces the mineralogy and the mode of formation of a very pure and vein-like deposit of crystalline graphite. This deposit is of more than ordinary interest because in its geological relations and in the character of its graphite it shows many similarities to the famous deposits of Ceylon.

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Electrolytic Deposition Of Iron, Irving M. Kenoffel May 1943

Electrolytic Deposition Of Iron, Irving M. Kenoffel

Bachelors Theses and Reports, 1928 - 1970

In this thesis the purpose was to obtain a good iron deposit from a relatively simple bath. The deposit was to be of good nature and low in Carbon content. Also included is a summary of the uses to which electrolytic iron can be put as well as a summary of work done by other researchers in depositing iron electrolytically.

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Electrolytic Manganese From Aqueous Sodium Manganate Solution, William F. Sullaway May 1943

Electrolytic Manganese From Aqueous Sodium Manganate Solution, William F. Sullaway

Bachelors Theses and Reports, 1928 - 1970

The contents of this paper represent attempts to deposit the metal, manganese from sodium manganate solutions. The source of manganese was limited to the nodulized product from roasting rhodochrosite and was therefore chiefly manganese oxide.

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Spectrographic Analysis Of Montana Limestones, Clifford A. Barkell Apr 1943

Spectrographic Analysis Of Montana Limestones, Clifford A. Barkell

Bachelors Theses and Reports, 1928 - 1970

Spectrographic analysis of limestones as a possible method of correlation of geologic formations is an altogether new line of investigation. As far as known the only previous work consists of a few analyses made by Fred Lines in his bachelor thesis work at Montana School of mines in the spring of 1942.

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Concentration By Flotation Of A Complex Galena - Sphalerite - Chalcopyrite Ore From The Nine Mile District Near Missoula, Montana, Truxton J. Fisher, John L. Tokich Apr 1943

Concentration By Flotation Of A Complex Galena - Sphalerite - Chalcopyrite Ore From The Nine Mile District Near Missoula, Montana, Truxton J. Fisher, John L. Tokich

Bachelors Theses and Reports, 1928 - 1970

At the present time ore bodies being mined are becoming more and more complex in mineral association, thus presenting a more difficult problem in their concentration. Lead-zinc sulphide ores are among the more common ores which present such difficulties.

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Permeability And Porosity Studies Of The Cut Bank Oil Sand, Wesley Edward Davis Apr 1943

Permeability And Porosity Studies Of The Cut Bank Oil Sand, Wesley Edward Davis

Bachelors Theses and Reports, 1928 - 1970

In studying the Cut Bank field and its numerous wells, it is found that dry holes are surrounded by producing wells, and also that the field as a whole is very irregular; water, oil, and gas zones in many cases following no definite pattern. In some instances, this phenomenon may be due to the lensing and thinning of the producing sands, but it is evident that this is not the only factor. There­fore, the controlling factors must be porosity and permeability.

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Coal In Montana, Clifford A. Barkell Apr 1943

Coal In Montana, Clifford A. Barkell

Bachelors Theses and Reports, 1928 - 1970

Coal was first mined in Montana in the year 1880. For the last thirty years the mining of coal in this state has been very important-with few people realizing its value. In the mineral industry, the value of the annual production of coal is exceeded by none of the non-metallics, and only by gold, silver, and copper in the metallics. At the present time the coal production of Montana is valued at about 41000,000.00 annually.

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Zinc Plating Magnesium, Howard Wilbur Adam Apr 1943

Zinc Plating Magnesium, Howard Wilbur Adam

Bachelors Theses and Reports, 1928 - 1970

Magnesium and magnesium alloys are becoming more and more important in modern industry. Their use in the aviation industry has been greatly curtailed because of their comparatively poor resistance to corrosion especially in moist atmospheres. Many methods have been adopted to improve their resistance to corrosion.

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The Electrodeposition Of Iron-Manganese Alloys, Earl C. Roberts Apr 1943

The Electrodeposition Of Iron-Manganese Alloys, Earl C. Roberts

Bachelors Theses and Reports, 1928 - 1970

Various electrolytes were experimented with in an attempt to deposit an iron-manganese alloy. An Alloy was obtained from a solution containing ferrous ammonium sulfate, manganous sulfate, and ammonium sulfate. Further experimentation was done in an effort to determine the optimum conditions of deposition and the highest manganese alloy which could be produced.

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Copper Commando - Vol. 1, No. 18, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Apr 1943

Copper Commando - Vol. 1, No. 18, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue...Great Falls, casting bag house, filter, Richard, J. "Moon" Rogers, Butte miner, U.S. Army, Australia, skips, zinc plant substation, rotary converters, dynamite, powder day, victory gardens, John Coulter, smelter, calcine, iron, supher, copper ore

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Copper Commando - Vol. 1, No. 17, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Apr 1943

Copper Commando - Vol. 1, No. 17, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue...War bonds, bullets, machine guns, ammunition, material shortage, production quotas, copper, Leonard mine, water pumps, boiler shop, steel, food shortage, rationing, phosphate, Anaconda, parts mending, forges, blacksmiths, safety

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Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering Apr 1943

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT (1) Ten tests were conducted on the following beams (a) 18 - 1/2 -14, 2, and 3; and 16- 1/2 - 2. These are the last tests of the original series of beams. Specimens 16- 1/2 - 1 and 3 after welding showed bad distortions in shape and for this reason could not be used. (b) In order to supplement the tests, six more beams with unstiffened flanges were tested. For three of these beams left over studs of the old stud tests were used. These beams are 4 in. deep and are designated as …

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Copper Commando - Vol. 1, No. 16, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Mar 1943

Copper Commando - Vol. 1, No. 16, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue...Admiral Ernest J. King, Connaner-in-Chief, U.S. Fleet, supplies, ships, guns, Anaconda reduction works, repair foundry, blacksmith shop, war materials, blasing, safety, Mike Wynn, boiler shop, Montana agates, war bonds and stamps

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Copper Commando - Vol. 1, No. 15, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Mar 1943

Copper Commando - Vol. 1, No. 15, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue...Wave, Andree Goddard, Butte, gilding metal, brass, government, production, shells, machine shop, war materials, Al Campbell, Butte Geological Department, safety tips, mine rescue, Red Lodge, Montana, Bureau of Safety

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Copper Commando - Vol. 1, No. 14, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Feb 1943

Copper Commando - Vol. 1, No. 14, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue...L.H. Campbell, army ordnance, copper, strategic metals, supply, Montana, Great Falls, gilding metal, brass, refinery, production, Geological Dept., veins, Butte Miners' Union No. 1 Drum and Bugle Corps, floation, hearth furnace

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Copper Commando - Vol. 1, No. 13, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Feb 1943

Copper Commando - Vol. 1, No. 13, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue...C.W. Fisher, USN, Stalingrad, Washington DC, Bob Nesmith, Butte mines, underground, Mining Engineering, stope books, informal news, Henry Porter, precipitatin plant, zinc, Anaconda foundry

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Copper Commando - Special Issue, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Feb 1943

Copper Commando - Special Issue, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

Special Issue...Winners Army-Navy "E" Award, Anaconda Reduction Works, recognition, Smelter production, war materials, ceremony

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Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering Feb 1943

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT (a) Twenty tension tests were carried out on specimens cut from the steel of which those beams were fabricated for which tension tests are not inculded in the 27th Report. This completes the tension tests for the present series of beams. (b) A start was made in the final evaluation of the results of the beam tests. The part of the evaluation completed to date is included in this report.

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Copper Commando - Vol. 1, No. 12, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Jan 1943

Copper Commando - Vol. 1, No. 12, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue...American wounded, North Africa, home, J.C. Magee, Surgeon General, copper, medical supplies, concentrators, cadmium, Bud French, mine ore, floatation, zinc production, safety record, accidents, Hitler, Mussolini, Hirohito.

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Copper Commando - Vol. 1, No. 11, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Jan 1943

Copper Commando - Vol. 1, No. 11, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue...John D. Bulkeley, USN, Washington DC, zinc leaching plant, Great Falls, Montana, precious metal, smelter, war product, reduce paper usage, Sam Treloar

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Copper Commando - Vol. 1, No. 10, Special Issue, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Jan 1943

Copper Commando - Vol. 1, No. 10, Special Issue, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue...W. H. P. Blandy, Bureau of Ordnance, Pacific, first year of war, navy, gals, home front, Pearl Harbor, industry, maneuvers, WAVES, WAACS, SPARS, production, Axis, housing, Bendix, readers letters

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A Study Of The Pollution Of The Meramec River, William Quentin Kehr Jan 1943

A Study Of The Pollution Of The Meramec River, William Quentin Kehr

Professional Degree Theses

"Early in 1940 a project was undertaken for a complete survey of the Meramec River Basin. This project, of which the pollution study was a part, was one of the most extensive surveys made of an entire river basin and included detailed studies of soil erosion, land, use, pollution, rainfall, and recreation in the Meramec Basin. The pollution study covered that portion of the Meramec River from its confluence with the Mississippi River to Steelville, a distance of about 140 river miles; the Big River from its mouth to a point west of Flat River, a distance of 107 river …

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