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Bachelors Theses

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Articles 31 - 60 of 171

Full-Text Articles in Mining Engineering

Leaching Copper Tailings, Howard Gove Halsey, Frederick Gallaway Moses Jan 1914

Leaching Copper Tailings, Howard Gove Halsey, Frederick Gallaway Moses

Bachelors Theses

"There are, scattered throughout the country, enormous amounts of rock that, by the discovery of a quick, cheap, and practiable sic method of extracting their metallic content could be turned into valuable ores. This has already been accomplished for gold and silver by the adaption of the cyanide method to their treatment. The next in order, both because of the value of the metal and the amount of material available in mill dumps and in the ground, is copper. there are dumps containing millions of tons of this material lying idle because of the fact that with the present methods …


The Efficiency Of The Kerruish Smoke Consumer And Coal Economizer, Arthur F. Truex, Gilbert F. Metz Jan 1914

The Efficiency Of The Kerruish Smoke Consumer And Coal Economizer, Arthur F. Truex, Gilbert F. Metz

Bachelors Theses

"The Kerruish Smoke consumer is the invention of Mr. H. B. Kerruish and is patented in the United States under the Patent Number 1,046,196. The tests herein shown were made for the purpose of determining the practical value of the device as a smoke consumer, and as a fuel economizer. Many forms of these devices have been put on the market, some using a steam spray, and others using air in a manner similar to the Kerruish apparatus"--Scope of the Thesis, page 2.


A Comparison Of Crushing Machines, Clyde Willis Hall, Walter Henry Wager Jan 1914

A Comparison Of Crushing Machines, Clyde Willis Hall, Walter Henry Wager

Bachelors Theses

"Much has been written on the comparative efficiency of the various sorts of crushing machines used in the art of Ore Dressing, but it must be confessed that the subject has by no means been reduced to one of the exact sciences as yet. This is rather a sad condition of affairs, for as is of course apparent to the most casual observer, the whole fabric of ore dressing rests and depends to a large degree on the efficiency and economy of the crushing machinery. Inefficient crushing means high costs, irrespective of the thoroughness and cheapness with which the ensuing …


Flotation Applied To Joplin Sludge, Thaddeus C. Wilson, Gustaf Axel Hellstrand Jan 1913

Flotation Applied To Joplin Sludge, Thaddeus C. Wilson, Gustaf Axel Hellstrand

Bachelors Theses

"The sludge (fine material) which daily is being sent to the tailing dump by the Joplin mills contains values in lead and zinc often in excess, as to percentage, of that of the crude ore. At present no attempt is being made to treat this It is at this point that it is proposed to introduce some flotation process to supplement the ordinary scheme of wet concentration. With this end in view we have conducted a series of experiments in the flotation of a Joplin sludge"--page 2-3.


Methods Of Mining And The Preparation Of Coal In The Belleville, Illinois District, Harry William Shaw Jan 1913

Methods Of Mining And The Preparation Of Coal In The Belleville, Illinois District, Harry William Shaw

Bachelors Theses

"The methods of mining and the preparation of coal for the market in the Belleville District represent the most modern and up-to-date methods in the state of Illinois. Mine No. 17 of the Consolidated Coal Company is the largest in the district and the methods used here are typical of the entire district"--page 6.


Relation Of Carbon Dioxide In Flue Gases To The Efficiency Of A Boiler, Richard A. Wagstaff, Philip A. Moore, William Ehlers, James Hopkins Jan 1913

Relation Of Carbon Dioxide In Flue Gases To The Efficiency Of A Boiler, Richard A. Wagstaff, Philip A. Moore, William Ehlers, James Hopkins

Bachelors Theses

"This thesis was undertaken to demonstrate the practical utility of measuring the efficiency of a Heine Boiler, installed in the Power Plant at the Missouri School of Mines, by the amount of CO₂ in the flue gases. The tests were made on a new boiler which had recently been installed in the Power Plant. The boiler and setting being new, the tests should show a high percentage of CO₂ in the flue gases and a high evaporative efficiency by the boiler"--page 3.


Test Of The Municipal Power Plant Of The City Of Rolla, Missouri, Dexter Eli Andrus, Leonard Stephen Copelin, Harry Hackett Nowlan Jan 1913

Test Of The Municipal Power Plant Of The City Of Rolla, Missouri, Dexter Eli Andrus, Leonard Stephen Copelin, Harry Hackett Nowlan

Bachelors Theses

"The object of the test was to determine the efficiency of the boilers and engines under the actual conditions of every day operation"--Object of the Test, page 3.


Electrode Potential Of Galena, Robert Emmett Dye Jan 1912

Electrode Potential Of Galena, Robert Emmett Dye

Bachelors Theses

No abstract provided.


Treatment Of An Arizona Gold Ore, Scott D. Callaway, Henry F. Adams Jan 1912

Treatment Of An Arizona Gold Ore, Scott D. Callaway, Henry F. Adams

Bachelors Theses

"This thesis is a description of experiments preformed sic to determine the best scheme of treatment of a gold ore"--page 1.


Roasting Pyrite For Magnetism With Minimum Sulphur Volatilization, Dale Irwin Hayes, Clark Watson Wright Jan 1912

Roasting Pyrite For Magnetism With Minimum Sulphur Volatilization, Dale Irwin Hayes, Clark Watson Wright

Bachelors Theses

"In Wisconsin and other zinc mining districts the blende is frequently found associated with pyrite and marcasite. In the Wisconsin district, especially, the marcasite content of the mine-run ore is high being frequently equal to and in many cases greater than the sphalerite content. At time the marcasite and sphalerite together constitute as much as 25 or 30% of the min-run ore. The characteristic milling treatment of this ore is; first, hand-picking, and then over grizzlies, tromells, rougher and cleaner jigs. Owing to the fact that marcasite and sphalerite differ but slightly in specific gravity the jig concentrate obtained is …


Geology Of Beaver Quadrangle, Robert Justice Paulette, James Lawton Keelyn Jan 1912

Geology Of Beaver Quadrangle, Robert Justice Paulette, James Lawton Keelyn

Bachelors Theses

No abstract provided.


Fire Clays Of Phelps County, Arthur Harrison Cronk Jan 1912

Fire Clays Of Phelps County, Arthur Harrison Cronk

Bachelors Theses

No abstract provided.


Statement Of Mining Costs In The Butte District Three Months Ending June First 1910, Clifford Leroy Conway, George Sylvester Thomas, George Francis Condon Jan 1912

Statement Of Mining Costs In The Butte District Three Months Ending June First 1910, Clifford Leroy Conway, George Sylvester Thomas, George Francis Condon

Bachelors Theses

"The following cost data were compiled from the monthly cost sheets of the several mines, through a period of three months, April, May and June 1910. These figures were obtained from the cost sheets of the Anaconda Copper Mining Co. and are exact in every instance. The scale of wages and the cost of supplies which prevailed during the period that these figures were created were as follows"--page 3.


Testing Explosives, Frank James Flynn, Miller Edward Willmott Jan 1912

Testing Explosives, Frank James Flynn, Miller Edward Willmott

Bachelors Theses

"The following tests and experiments were carried on to determine: first, the utility of a certain well known method of making comparative tests of explosives and second; to show some of the conditions that influence the force and effect of a blast, such as the size of detonator, the use of tamping, the size of bore hole, and the size and number of free faces exposed to the blast"--Introduction, page 1.


The Measurement Of Compressed Air And Its Consumption In Rock Drills, Homer Kent Sherry, William Porri Jan 1912

The Measurement Of Compressed Air And Its Consumption In Rock Drills, Homer Kent Sherry, William Porri

Bachelors Theses

"The object of this thesis is to investigate the measurement of compressed air and to determine its consumption in rock drills. Our intention at first was to run more exhaustive tests on the drills, but due to the large amount of work necessary in rigging up the apparatus and computing results, we found it necessary to curtail our work to representative types of the hammer and the piston machines. We regret being unable to give more complete data in regard to the drills, but hope to point out fields for future work since, with the increased facilities now at hand, …


Efficiency Of The Missouri School Of Mines Power Plant And Cost Of Operation, Cairy C. Conover, John Richardson Kenney, Louie Lincoln Coover Jan 1912

Efficiency Of The Missouri School Of Mines Power Plant And Cost Of Operation, Cairy C. Conover, John Richardson Kenney, Louie Lincoln Coover

Bachelors Theses

"These tests were made for the purpose of getting the efficiency of the electric power plant as it was being run and the cost of operating it. Tests were first made on the boilers separately. The load at the time of the test was too heavy for one boiler and too light for tow, part of the steam being used for heating the buildings and for the air-compressor. This made it so that no combined test of the boilers and generating couple could be made until the warm weather came and the laboratories using compressed air were closed, which was …


Efficiency Of The Missouri School Of Mines Power Plant, Eugene Harding Broughton, William Henry Elbelt Jan 1912

Efficiency Of The Missouri School Of Mines Power Plant, Eugene Harding Broughton, William Henry Elbelt

Bachelors Theses

"The test was made for the purpose of determining the efficiency of the power plant as it is being run"--page 3.


A Determination Of The Steam Consumption In The Engines Of The School Of Mines Power Plant By Means Of A Steam Flow-Meter, Harold Percy Ford, Scovill Edward Hollister Jan 1912

A Determination Of The Steam Consumption In The Engines Of The School Of Mines Power Plant By Means Of A Steam Flow-Meter, Harold Percy Ford, Scovill Edward Hollister

Bachelors Theses

No abstract provided.


Coal Washing, Mark S. Sheffer, Thomas Andrew Stroup Jan 1912

Coal Washing, Mark S. Sheffer, Thomas Andrew Stroup

Bachelors Theses

"The rapid growth of the coal washing industry in the United States during the past few years is characteristic of the general tendency toward more economical and efficient utilization of the natural resources, the washing of coal being a process of enrichment of one of the most necessary and widely used raw products. This industry is of great importance to the men engaged in mining of coal as well as to the community at large, and since it makes possible the use of originally poor coals, it conserves one of the natural resources absolutely essential for the progress of the …


The Effect Of Aluminum On Bronze, Edward Dale Lynton Jan 1912

The Effect Of Aluminum On Bronze, Edward Dale Lynton

Bachelors Theses

"The object of this thesis is to determine the effect of aluminium sic on bronze and find the best composition for commercial use"--Object, page 3.


The Determination Of The Best Treatment For A Certain Mexican Silver Ore, Sumner Cooley Macomber Jan 1911

The Determination Of The Best Treatment For A Certain Mexican Silver Ore, Sumner Cooley Macomber

Bachelors Theses

No abstract provided.


A Study To Determine A Process For The Treatment Of An Amalgamation Tailing, Robert Bruce Mitchell, Edward William Engelmann Jan 1911

A Study To Determine A Process For The Treatment Of An Amalgamation Tailing, Robert Bruce Mitchell, Edward William Engelmann

Bachelors Theses

"The ore for this series of experiments is the tailing from the old ore-dressing mill at Missouri School of Mines. In undertaking the task of devising a cyanide scheme for this tailing we knew that we had no little amount of work before us, neither were we sure of success, for all attempts thus far to cyanide this tailing had failed"--page 2.


Sulpho - Telluride Ore, David Lawton Forrester, Harry W. L. Porth Jan 1911

Sulpho - Telluride Ore, David Lawton Forrester, Harry W. L. Porth

Bachelors Theses

"The problem considered in this work, is the determination of a suitable scheme for cyaniding a low grade Cripple Creek ore. For several years many attempts have been made to solve the metalurgical sic problem presented by such ores"--page 1.


Evidence Relative To The Effect Of Mechanical Mixing Of Charges In The Fire Assay, James Keller Beach Jan 1911

Evidence Relative To The Effect Of Mechanical Mixing Of Charges In The Fire Assay, James Keller Beach

Bachelors Theses

"While mixing has always been suggested in the text books, on assaying, yet it seems that experimental data as to the effect of lack of mixing, or insufficient mixing, is not available. This thesis was conducted in an effort to determine just what variation and irregularity in the fusion of gold and silver ore was caused by non-mixing; i. e., whether the fusion took place in the same length of time, whether the fusion was complete, whether the values were collected and, in general, just what irregularities were incurred"--Statement of the Problem, page 2.


Milling At Cananea, Dibrell Pryor Hynes Jan 1911

Milling At Cananea, Dibrell Pryor Hynes

Bachelors Theses

No abstract provided.


Suggested Improvements For A Wisconsin Zinc Mill, Raymond Alexander Bingham Jan 1911

Suggested Improvements For A Wisconsin Zinc Mill, Raymond Alexander Bingham

Bachelors Theses

No abstract provided.


Topography And Geology Of The Panther Bluffs Area, Roswell H. Maveety, Joseph Stewart Irwin Jan 1911

Topography And Geology Of The Panther Bluffs Area, Roswell H. Maveety, Joseph Stewart Irwin

Bachelors Theses

No abstract provided.


Geology Of A Carboniferous Outlier In Lawrence County, Missouri, Maurice Merton Albertson Jan 1911

Geology Of A Carboniferous Outlier In Lawrence County, Missouri, Maurice Merton Albertson

Bachelors Theses

No abstract provided.


Mine Map And Geology Of Saltpeter Cave, Milan Harrison Detweiler, Frank Edgar Townsend Jan 1911

Mine Map And Geology Of Saltpeter Cave, Milan Harrison Detweiler, Frank Edgar Townsend

Bachelors Theses

"The date of discovery of Saltpeter Cave is not known and there is no way of determining it. Numerous accounts are given of the cave by the oldest settlers in the neighborhood, some of which are both startling and interesting. for instance, it is reported that the soldiers of the Confederate army visited this cave for the purpose of securing guano from which to extract saltpeter for use in the manufacture of gunpowder. This may be the origin of its name"--Geology, Page 1.


A Comparative Test Of The Air Consumption Of Rock Drills, John Elmer Schultz, Christian R. Miller Jan 1911

A Comparative Test Of The Air Consumption Of Rock Drills, John Elmer Schultz, Christian R. Miller

Bachelors Theses

"The aim of this thesis is an attempt to determine the relative efficiency, of four standard types of rock drills, as to air consumption. The air consumption was based upon the cubic inch of rock drilled by each machine. The orifice method of measurement being utilized, in connection with the exhaust to determine the desired consumption"--page 1.