Mining Engineering Commons^™

Accident Prevention In Cement Plants, Edward Rees Abbott

Bachelors Theses

"The cement industry as a whole took up accident prevention work along with the pioneers. With the organization of the Portland Cement Association, a Bureau of Accident Prevention was formed. This Accident Prevention Bureau, by sending out literature, holding competitions, collecting and tabulating results of accidents collected from every cement manufacturer and affiliating with National Safety Council as the Cement Section, has made rapid strides each year, until today it is doubtful if any other branch of manufacturers can show more improvement in accident records than the cement industry. In spite of their marked improvements each year, there were 47 …

The Flood Control System Of Newport, Ark., Alvis Frederick Denison

Bachelors Theses

"Vast sums each year are expended on flood control projects on the Mississippi river and its tributaries. Millions of acres that were formerly subject to annual inundation caused by overflows, have been reclaimed for agricultural purposes, and each year, an increasing amount of this sort of work must be done as quicker run off and an increased volume caused by the clearing of land and drainage of natural storage, results in higher flood stages. Of course the greatest work of this kind has been done along the Mississippi river, where great levees on each side from Missouri to its mouth …

Investigations To Determine A Possible Source Of The Carboniferous Sandstone Of The Ozark Region, John Hyer Bowles, Lewis Ely Davidson, William Ferdinand Netzeband

Bachelors Theses

"In preparing this thesis the object has been to determine, by comparisons, a possible source of the Carboniferous sandstones. It is perfectly obvious that the material came from some older formation. Considering all the possible sources from which the Carboniferous sandstone could have originated, we, have the Pre-Cambrian igneous rocks of the St. Francois Mountains, the basal Cambrian sandstone or the La Motte formation, the Roubidoux formation (chiefly sandstone), and the St. Peter formation (essentially sandstone)--Introduction, page 4.

Investigations On Oklahoma Chats, Homer Chalmers Kerr, August Francis Delaloye

Bachelors Theses

"That the tailings piles of the Joplin and the Oklahoma zinc mining fields contain zinc in commercial quantities is a known fact. Realizing this fact, a number of experiments were performed to determine whether or not this zinc could be extracted. The chats for this work were obtained from the Fort Worth Mill at Pitcher, Oklahoma"--Introduction, page 1.

Concentration Of Ores By Flotation, John Gay Reilly, Frank Stillmann Elfred

Bachelors Theses

"Flotation is a new step in the separation of valuable minerals from gangue. This process has only been in commercial use for about six years. There has been several theories advances as to how the ore is concentrated, and the theory that is now usually accepted is that the oil covers or wets the sulphide mineral particle and does not the gangue; and this mineral particle, by means of induced aid is concentrated on the surface. The authors of this thesis have not attempted to explain the reason or reasons why minerals will float; but have accepted the theories advanced …

Selective Concentration Of A Complex Ore By Flotation, Paul Frederick Pape, Ralph Dale

Bachelors Theses

"The problem of the Mining Engineer and Metallurgical Engineer who wishes to treat the slimes and fine sands of a complex ore is the recovery and separation of minerals so as to render a subsequent treatment of any mineral profitable. The minerals must be separated into groups which can be treated by different processes, because a combination of numerous minerals is extremely undesirable at the smelting plant. In a lead ore the presence of zinc often depletes its value to such an extent that it is unprofitable to treat it; likewise with other minerals and ores. Many systems of selective …

Concentration Of A Joplin Slime By Flotation, Earl Joseph Weimer, Walter Harry Freudenberg

Bachelors Theses

"Concentration of the Joplin slimes by means of flotation is a subject receiving considerable attention at the present time, due to high price of zinc. These slimes are the accumulation of the finer particles of the ore during the milling process, and their zinc content is well worth considering. The practice in the past has been to sluice these slimes into the tailing pond, as no economical method of saving the zinc had been employed. The object of our experiment was to economically extract from these slimes by flotation, a product of sufficient zinc content to be of commercial value"--Introduction, …

Practical Details Of Mine Surveying In Certain Mines Of Northern Mexico, Arturo C. Fernandez

Bachelors Theses

"The name of this thesis is suggestive of its character. The writer has endeavored to resent in a general way some of the most important details of mine surveying as he has found them in actual practice. For the sake of uniformity the engineering staff in which he worked prepared a set of instructions to be used by the engineers at the various mines. The methods and illustrations described in this paper have been adapted from these instructions and they afford a thorough foundation ready to receive the minor details best adapted to each particular mining district"--Foreword, page ii.

Flotation Applied To Silicate Sludge, Yaro Klepel, Greene Erskine

Bachelors Theses

"Within the past few years great success has been made of the flotation of sulfids, and to a certain extent of carbonates.

Since sulfids are easily recovered by flotation it seems practicable that silicates could be made to float by first sulfidizing them, and then subjecting them to ordinary flotation treatment.

This problem involves the treatment of a silicate sludge obtained from the Joplin district, the sludge will easily pass through a 250 mesh screen. At the present time this sludge is being sent to the tailings pond.

The experimental work of this thesis was done along the line of …

The Flotation Of A West Joplin, Mo. Slime, John Stone Hoffman, James Joseph Dowd

Bachelors Theses

"Owing to the high price of zinc and the success attending flotation in other districts, intense interest was aroused in the flotation of slimes of the South-West Missouri District. These slimes are the accumulation of the finer particles of the ore during the milling process and their metallic content is generally higher than that of the original ore. They have been disposed of, in the past, by sluicing them to the tailings ponds because no economical method of saving the zinc had been discovered. The object of our experiments was to economically extract from these slimes, by flotation, a product …

Pneumatic Ore Concentration, Robert Winters Johnson, Walter William Weissbach

Bachelors Theses

"The concentration of lead and zinc ores by means of air is practically an unexplored field, although the subject is by no means a new one. Considerable research work has been done and several methods, processes and machines have been developed, but little or nothing has been accomplished towards making air separation a success. the lack of success has been due mainly to two reasons:- (1) That very little has been known about the internal conduct of air currents, and (2) that nearly all methods and machines so far worked out have presupposed the fact that the ore to be …

Mining Methods Of The Calumet And Arizona Mining Company, Warren District, Cochise County, Arizona, James Lawrence Head

Bachelors Theses

No abstract provided.

The Development Of A Copper-Silver Ore Body, Colwell Arba Pierce

Bachelors Theses

"During the years 1912 to 1915 the writer had charge of the Ruby Copper Company property near Patagonia, Arizona, and it was suggested that a review of this work, with costs and data, would be helpful to other engineers engaged in similar enterprises"--Introduction, page 2.

Report On The Lucky Bill Mine, Bayard, Grant County, New Mexico, Walter Gammeter

Bachelors Theses

"The Lucky Bill Mine is located, with reference to the Mining Districts of the State of New Mexico, in what is known as the Central Mining District. The Central Mining District includes the Sant sic Rita and Hanover regions in the north and eastern portions and camps within a radius of about six miles about the town of Central in other directions. The mining districts bounding the Central District are on the north the Georgetown District, on the west and south the Silver City District and on the east the Hillsborough District"--Location of the Mine, Page 1.

Notes On The Development Of The Flotation Process For Concentrating Copper And Iron Sulphide Ore, Holman Thompson Marshall

Bachelors Theses

"The first flotation machines was installed at the Magna Mill of the Utah Copper Co. in August and September, 1914. The outbreak of the war in Europe having made necessary the shutting down of the Arthur Mill of the same company, the flotation plant was installed at Magna for the purpose of carrying on experiments which had been in process at Arthur. Enough experimentation had been done with the small laboratory machine at Arthur, and results obtained were favorable enough to warrant the installation of a full size Janney machine"--page 1.

Problems In Flotation, William Henry Mccartney

Bachelors Theses

"Little has been done to classify oils on the basis of their action as flotation agents, either for their frothing or their selective qualities...This investigation was undertaken chiefly to aid in effecting such a classification"--page 3.

Geological Mapping Of An Area Along The Frisco Railroad Between Cuba And Saint James, Willard Miles Benham, William Elliott

Bachelors Theses

"The chief object of the work has been the location of the Roubidoux-Jefferson City contact, if it occurred within a mile of the railroad. Distances and positions along the track were obtained by the use of a map and by counting telephone poles. Other locations were made by obtaining their bearing and distance from these points by the use of a compass and by pacing. Elevations were carried by aneroid barometers, using the railroad elevations at mile points as bench marks. An attempt has been made to locate all important outcrops; but these are shown only on the field map. …

A Study Of The Stoping Efficiency And Ore Transportation Of The Arizona Copper Company At Morenci, Arizona, Robert Stanley Burg

Bachelors Theses

"The purpose of this paper is to give a description of the most important mining operations of the Arizona Copper Company at Morenci, Arizona, during the years 1911, 1912 and 1913. This work was planned in the engineering department by the mine superintendent, Mr. John Kiddie, while the author was employed in his office as chief mine surveyor from November 1911 to September 1913. As in other mining districts of the southwest, the rich contact and pocket, copper deposits in the Clifton-Morenci district have been nearly exhausted, necessitating the development and extraction of the low-grade porphyry deposits"--Introduction, Page 1.

The Cyaniding Of A Mexican Silver Ore, Homer Marvon Wilson, Roy Watson Griffin

Bachelors Theses

"The purpose of this thesis is to determine whether or not a certain Mexican silver ore is amenable to cyanidation"--Purpose, page 1.

The Relation Of The Composition Of Petroleum To Its Origin And Occurrence, John Warder Shotwell

Bachelors Theses

"Petroleum Is a mixture of hydrocarbons. It is a liquid varying from colorless, through yellow and brown to black. It varies from 1.0 to 0.80 in specific gravity, which corresponds to 10° to 45° Beaume. It varies widely in physical properties, such as viscosity, ignition point, polarization of light, etc. Chemically it is composed essentially of carbon and hydrogen, but usually contains impurities such as sulphur and nitrogen. The carbon and hydrogen combine with each other to form certain series, or "chains"--Chemical and Physical Nature, page 1.

Comparative Tests Of Piston-Drill Bits, Lister Merriken Cummings

Bachelors Theses

"The purpose of this investigation is to compare the relative cutting speeds and efficiency of some of the different types of rock drill bits used in the piston machine, including the regular cross bit, the low center cross bit, a so-called "flat" cross bit, the "Z" bit of the southeast Missouri type, and the Joplin "Bull" bit"--page 2.

An Efficiency Test Of A Laboratory Fan, Daniel Webster Blaylock, Edward Albrecht Schroer, Elton Arthur Miller

Bachelors Theses

"The principal object of these tests is to determine the efficiency of the fan when working against the different sized orifices at various speeds and pressures. Before this could be accomplished, the coefficients of discharge of the 18 in., 24 in., and 30 in. orifices had to be determined"--Object of Tests, page 4.

Effect Of Compression And Transmission On The Illuminating And Heating Value Of Carburetted Water-Gas, Horace Herbert Clark

Bachelors Theses

"The object of this series of tests was to determine the effect of compression upon the candle power of carburetted water gas, as made in the daily operation of a three piece water gas machine, cooled in condensers, passed through shavings, scrubbers and oxide material, and thence into a storage holder, ready for compression and distribution. The apparatus consisted of a small Westinghouse air compressor; nine storage tanks of six inch wrought iron pipe; transfer pump; pressure regulator; standard one hundred inch bar photometer, complete, with regulators, clock, meter, pentane lamp, etc., gas analysis outfit, complete; also gages, thermometers, etc."--Page …

The Determination Of Oils In Limestone, Claude Calvin Cushwa

Bachelors Theses

"The purpose of this work has been to establish the occurrence or the non-occurrence of petroleum in certain limestones. The results of this work, if oil were proved to exist, would have a direct bearing on the theories of the origin of oils"--Introduction, page 1.

Comparative Tests Of Rock Drill Bits For Piston Machines, Thomas C. Robson, Miguel Leon Cepeda

Bachelors Theses

"The object of this thesis is to find out the relative cutting qualities of different kinds of rock drill bits. The bits tested were: the regular cross bit, the Z bit of the Southeast Missouri type and the bull bit of the Joplin type. All these bits were made on a No. 5 Leyner sharpener and were tempered as nearly alike as possible. All conditions were kept as nearly uniform as possible during the various tests; air pressure, length of stroke, size of bit, etc., the only variables entering being the difference in bits and personal equation of operators"--Introduction, page …

Tests Of Rock Drill Bits For Water-Leyner Machine, Riley Marsh Simrall, Edmond Otis Stoliker

Bachelors Theses

"The above investigation was made in the Mining Laboratory of the Missouri School of Mines, under the direction of Prof. C. R. Forbes, with the following object in view: To make comparative tests of various types of regular and special bits for the Water-Leyner machine as to drilling speed and total distance drilled by each bit without resharpening"--Introduction, page 2.

Investigation With Rock Drills, Tirso CastillóN

Bachelors Theses

"The object of this thesis is to investigate the different shapes of bits in rock drilling. My intention at first was to run more extensive tests on bits, but due to the large amount of work necessary in rigging up the apparatus, and the maintainence sic of same, I found it necessary to reduce my work to two bits, which I name Flat and Regular, the Flat Bit being an invention of Professor C. R. Forbes, and the Regular Bit being the common one used by the Leyner Company"--page 2.

Mining Methods And Geology Of The Boston Consolidated Mine At Bingham, Utah, James Leonidas Boucher

Bachelors Theses

"This thesis does not so much attempt a detailed report on the geology of the disseminates ores of Bingham Canyon as a more particular description of the underground methods of mining these ores as well as studies in drilling, sampling, etc. Steam shovel mining was studied to some extent but almost all the data for the following pages has been derived from the Boston Consolidated Underground Mine and the Old Utah Mine. The Boston consolidated, especially, has been studied for this mine is the largest and, at late date, was the only underground porphyry mine working, the Old Utah having …

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 …

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.