Mining Engineering Commons^™

Design Of A 250 Ton Mill, For Cyanidation Of A Cobalt Silver Ore, Carlos Enrique Elmore Y Guerra

Professional Degree Theses

"My aim in the designing of this 250-Ton Mill for cyanidation of a Cobalt Silver Ore, has been to select the simplest process of extraction in connection with the Labratory [sic] Experiments which showed the highest per cent of extraction. Care has been taken in the selection of the machinery, and the location of it in the Mill is such, that if a greater capacity is required, that could be done without interfering with the machines in the Mill in question"--Introduction, page 1.

Investigation Of Rock Drill Bits, George Elmer Abernathy

Bachelors Theses

"The object of this thesis is an attempt to determine the relative efficiency of rock drill bits.

The bits compared were the ordinary double chisel bit, sharpened with a Leyner drill sharpener, and the same bit after it had been filed so that the point was not sharp, but a flat surface 3/32 of an inch wide at the outside, diameter of the bit and tapering to a point at the center of the bit"--page 1.

The Development Of Mine Number One Of The Chinook Coal Company, Limited, Lethbridge, Alberta, Canada, Theodore Saunders Dunn

Bachelors Theses

"The Lethbridge Mining District lies about 50 miles north of the International Boundary and approximately 280 miles north of Great Falls, Montana. The country is rolling prairie with deeply cut river vallies sic and is practically treeless except for a few willows along the river bottoms. The rainfall is moderate but the climate is severe; the summers being short and hot while temperatures of -50 degrees F. are not uncommon during the long winters. On account of the severe winters and the scarcity of timber there is a good market for coal during the entire year as it is the …

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.

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

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

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.

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 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, …

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.

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

Bachelors Theses

No abstract provided.

Fire Clays Of Phelps County, Arthur Harrison Cronk

Bachelors Theses

No abstract provided.

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.

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

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

Bachelors Theses

No abstract provided.

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 Geology Of A Complexly Folded Area On Crooked Creek, In Crawford County, Missouril, Victor Harmon Hughes

Professional Degree Theses

"The area comprising the subject of this thesis lies in the southwestern part of Crawford county, 2 1/2 miles east of Wesco and 12 miles south of Steelville, the county seat. It embraces all of sections 17 and 20 and portions of sections 7, 8, 16, 18, 19, and 21, township 36 north, range 4 west. The area is of special economic interest in that the formations exposed are the same as those occurring in the southeastern Disseminated Lead district of St. Francois, Madison, and Washington counties. Until discovered in 1910 by assistants of the Geological Survey, these formations were …

Cost Of Brick Pavement Constructed, William Mcelroy

Professional Degree Theses

No abstract provided.

Plans And Specifications Of A Proposed Plant For Treating The High-Grade Silver Concentrate Of The Buffalo Mill By Tube-Mill Amalgamation, Hector George Sylvester Anderson

Professional Degree Theses

"Pursuant to your orders regarding the making of experimental tests on the high-grade silver concentrate of the Buffalo Mill, both on a small and a commercial scale, to determine the feasibility of extracting the silver contents and refining the same to 999-fine bullion I beg to submit the results of my work which has extended through the past two months. In the majority of the tests I have used a small Abbe-Engineering pebble-jars which will hold easily 1500 grams of ore and have checked the results obtained in these cases by similar results obtained by charging 1000 lbs. of ore …

A Study To Determine The Best Method Of Treatment For A Certain Gold-Silver Ore, Deane Dwight Harris, Duane Montgomery Kline

Professional Degree Theses

"The purpose of this thesis is to find a suitable method for extracting the gold and the silver from an amalgamation tailing"--Purpose, page 1.

Electrode Potential Of Galena, Robert Emmett Dye

Bachelors Theses

No abstract provided.

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.

The Efficiency Of The Rolla Municipal Power Plant, True Walter Blake, Otto Allen Lunak

Bachelors Theses

"The object of this thesis is to determine the efficiency of the separate units and of the plant as a whole under actual normal working conditions"--Object, page 1.

Milling At Cananea, Dibrell Pryor Hynes

Bachelors Theses

No abstract provided.

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

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

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.

Suggested Improvements For A Wisconsin Zinc Mill, Raymond Alexander Bingham

Bachelors Theses

No abstract provided.