Engineering Commons^™

The Lignite Coal Of North Dakota, Clyde Mckeever Laizure, James Knight Christopher

Bachelors Theses

"Owing to the great abundance of coal, both anthracite and bituminous, in the United States, no state need suffer for the lack of it, but to those states like North Dakota, situated in the great plains region and at great distances from such coal supplies, the price of these coals makes them almost luxuries. In the last few years however, the development of the lignite coal within the state of North Dakota has shown an abundance of fuel for many years to come, which, though at one time considered "A poor excuse for poor wood," now competes successfully with any …

The Russell Process -- Laboratory Tests And Design Of Plant, Alfred A. Thomas Jr., Thomas Cowperthwaite

Bachelors Theses

No abstract provided.

Laboratory Tests And Design Of Plant For Treatment Of Gold Ore, William Charles Wyman, Julian Insco Prugh

Bachelors Theses

"The object of this work was to determine methods and design plants best adapted for the estraction sic of gold from a given ore in the most profitable manner. In the following sheets are given in detail the work carried out and our conclusions as to the best method of treating this particular ore"--page ii.

Treatment Of A Complex Arizona Gold And Silver Ore, Edgar George Ross Manwaring, Clifford Redman Wilfley

Bachelors Theses

"The object of this thesis is to work out a commercially successful treatment of an Arizona Gold and Silver Ore"--page 1.

A Study Of Kentucky Fluorite, William Corsey Nesbitt

Bachelors Theses

"The Kentucky fluor-spar district, embracing Crittenden, Livingston and Caldwell counties in western Kentucky, is the only section in America, with the exception of southern Illinois, where fluor-spar is mined, ground, and shipped in quantity. The fluor-spar is also associated with rich surprises in zinc and lead ores. Before proceeding to a study of the district in question, it may be well to give a brief description of the mineral itself"--page 1.

Analytical Determination Of Copper Products, Charles Dosh Smith

Bachelors Theses

"It is a well known fact that the presence of impurities in copper products has been a source of annoyance to the Chemist. The object of this thesis was to make myself familiar with the actions of different impurities in copper products, and the methods for the determination of Arsenic in the same"--page 1.

An Investigation Of The Chemical And Metallurgical Treatment Of A Cobalt And Nickel Ore, James Watts Caples

Bachelors Theses

"The ore, coming from a district located one hundred and fifteen miles from the nearest railroad point, in a mountainous country, barren of coal, and where freight rates were enormous; demanded a method of treatment not now in general use upon this class of ores, and one that would require as little freight haulage either way, as possible. With these object in view, the following work was done, after reading all the data obtainable upon the subject as found in the school library"--Introductory, page 1.

Cyanide Tests To Show Action Of Common Cyanicides, Charles L. Lintecum

Bachelors Theses

"In view of the growing importance of the cyanide process and in that it seems destined to take an important place in the metallurgical treatment of gold and silver ores, the following tests have been taken as a thesis: It was intended at the onset to deal with varied ores and corroborate or establish any relation existing between such cyanicides as Cu, Bi, Sb, Mn, As, Fe, S and Te and the amount of cyanide consumed. This object however, was not fully realized owing to the fact that a large amount of work was done on ores No's. 1, 2, …

Neutralization Of Free Acid (H₃P O₄) In Commercial Mono-Calcium Phosphate (Ca H₄ (Po₄), George William Harris, Harry Adam Grine

Bachelors Theses

"The object of this thesis has been a systematic research based on the characteristic properties and reactions of mono-calcium phosphate, Ca H₄ (PO₄)₂, tending towards the development of a process for neutralizing the free phosphoric acid, H₃PO₄ formed during its manufacture"--page 1.

The Design Of A Process And Plant For The Manufacture Of Alum From Clay, Clarence Woods

Bachelors Theses

No abstract provided.

The Measurement Of The Quantity Of Water Delivered By Meramec Spring, James K. Black, John Owen Ambler

Bachelors Theses

"Meremec Springs, the property of T. M. James, is located in the southeast quarter of section one, township thirty seven north, range six, west of fifth principal meridian in Phelps County, Missouri, and is about six miles southeast of St. James, Missouri. Within the last few years it has come into prominence as a probable source of the water supply for the City of St. Louis and its suburbs. As no acurate sic and extensive knowledge was available on the subject it was deemed a suitable subject for thesis work"--page 1.

The Russell Process - Laboratory Tests And Design Of Plant, Charles G. Wrisberg, George Vest Bland

Bachelors Theses

No abstract provided.

The Absorption Of Matte By Sodium Carbonate, And The Effect On The Fire-Assay, Leo J. Foster, John Thomas Keenan

Bachelors Theses

"It has been observed in practical and experimental work, that there is a variation in the fire assay values of some sulphide ores and mattes by the metallic iron method due to the proportions of the reagents used. This is shown in a particular manner in the use of sodium carbonate. there is also a corresponding variation in the amount of matte separating out in the assay by this method. It is a well known fact that mattes absorb both gold and silver and this has always been regarded as one objection to the assay of the ores of those …

Notes On Phelps County Ores, John Morgan Price, Evan Edmund Price

Bachelors Theses

"In conclusion, summing up the evidence both field and theoretic, there are very good reasons for believing that the deposits which have been worked and are not being worked are not the only deposits of magnitude in the county but by intelligent prospecting along lines already suggested other large and valuable deposits will be found. From the manner of the ores concentration it is not to be expected that every deposit will have a surface outcrop neither is it probable that every depression will be found to contain an ore deposit but when these phenomena occur, together with other evidences …

Design Of A Mill For The Concentration Of An Arkansas Zinc Ore, Ralph Augustus Conrads, Matthew Vincent Quinn

Bachelors Theses

"The material to be treated is a zinc ore from Boone County, Arkansas, a district as yet but little developed but from present indications of the ore deposits found in the vicinity, it promises in time to become one of the most important zinc producing districts of the United States"--page 1.

The Design Of A Water Supply System For The Missouri School Of Mines, Lewis Alfred Delano, John Turner Rice

Bachelors Theses

"The supply of water for use in the School of Mines has long been a subject of study and discussion. The school is located in the north end of Rolla, being on the highest part of the Ozark uplift and having an elevation of 1140 ft. above the sea This makes it very difficult for a reservoir of sufficient capacity to be located for the water supply of the city of Rolla. Therefore the city has no water work and it becomes necessary for the School of Mines to furnish its own water"--page 1.

Experiments On A Telluride Ore And Design Of Plant For Treating Same, Charles Le Clair King, John Severin Schroeder

Bachelors Theses

"The ore used in these experiments was a double telluride of gold and silver coming from L Plata, Colorado"--page 1.

The Study Of Ventilation By The Centrifugal Fan System, Glenn Beckley Morgan, Walter James Tweed

Bachelors Theses

"The system under investigation was designed by the National Blower Works and consists of One Fan (see fan drawing) ten feet in diameter (guaranteed to deliver forty four thousand cubic feet of air at one hundred and thirty six revolutions per minute) housed in a three sixteenths inch steel plate casing which stands two hundred inches high from bottom of wheel pit to top of housing. One General Electric Motor of twenty horse power capacity at two hundred and twenty volts. A plenum chamber thirty four feet by twelve feet six inches from which extend forty galvanized iron air ducts …

Studies In Ore Deposition, Cyrus Edward Minor

Bachelors Theses

"The artificial preparation of natural occuring sic minerals is a matter of great interest and importance in the study of the conditions and processes involved in the deposition of ores. In a large number of instances, no difficulty is experienced in the laboratory manufacture, e.g. of calcite, arragonite, dolomite, strontianite, gypsum and other similar minerals may be obtained by crystallization out of molten masses, e.g. graphite, diamond, corrundum sic , etc.: still other cases in which special processes have been employed, have led to the production of compounds in the form in which they occur naturally. the facts so accumulated …

Contour Map, Isaac Peter Frazier

Professional Degree Theses

"In discussing the contour map as used by locating engineers, I will confine myself chiefly to the method of obtaining same, rather than the use"--page 1.

The Smelting Of Lead Ores In Southwest Missouri, Jerrold Roscoe Underwood

Professional Degree Theses

No abstract provided.

Drainage Of Mines, William Melvin Weigel

Professional Degree Theses

"Before going into the means employed for unwatering a mine, let us consider:--

I. The causes of Occurrence of water in Mines. The drainage of a mine is one of the operations, which, without contributing directly to the output is indispensible in carrying on the work.

By drainage we designate not only the means employed for preventing the influx of water into the workings, but also the means employed of getting rid of what inevitably finds its way into the workings in greater or less quantity.

The water in the mine obtains entrance in various ways.

Sometimes it merely filters …

Cyanide Practice, John A. Rogers

Professional Degree Theses

"The ENCINO CYANIDE PLANT was erected for the treatment of old accumulated tailings, which were worked by the "Patio" and "Cazo" processes. As with most accumulated tailings, which have been exposed to the action of the air for a considerable period, they have undergone changes, whereby, forming compounds which are highly detrimental to a solution of Potassium Cyanide and the direct cause of the present high consumption of Cyanide"--page 1.

Methods Of Discharge Measurements Of Streams, Royal Sylvester Webster, Walter Adams Luther

Bachelors Theses

"The method of determining the discharge of large streams is that in which the area of cross section is multiplied by the velocity per. sec. of the water passing through the section. The velocity can be measured by the following methods: 1. By floats. 2. Current Meters. 3. Pitots tube. 4. Can be determined by use of Kutter's formula"--page 1.

Gold Precipitation, William H. Gill, Raphael Curier Alexander

Bachelors Theses

"Subject - Electrolytic precipitation of gold from cyanide solutions as compared with precipitation on zinc shavings"--page 1.

The Electrolytic Refining Of Copper, Lewis S. Logan, Frank R. Bell

Bachelors Theses

"Although copper can be separated from its solution by means of the electric current and the amount so separated varies directly as the current, there is a point in each and every solution where on account of the energy given off to the ions, the copper will be carried over in a more or less impure state, depending upon the strength of the current, the strength of the solution,whether it is saturated or only partly saturated, or whether normal basic or acid and also upon the amount of impurities in the solution. It is the purpose of this thesis (1) …

The Destructive Distillation Of Pine Sawdust, Frederick Hauenstein, Herbert Arno Roesler

Bachelors Theses

"In many of the pine regions of the South, the operation of saw mills gives rise to immense quantities of waste products, such as slabs and sawdust. The sawdust especially, is of no practical value, accumulating in vast amounts; and, being very difficult to burn or otherwise dispose of, becomes a nuisance around the camp. The object of this thesis is to devise some means of utilizing the sawdust by recovering such constituents as might be of commercial importance "--page 1.

A Polyphase Generator Of The Missouri School Of Mines, Cornelius Mark Daily

Bachelors Theses

"I have taken for the subject of my investigation a Four Pyle three phase generator marked 220 volts, 5 amp. per terminal, 1.87 K.W. capacity. In these experiments I have endeavored to find the characteristic features with as much precision as possible with the instruments at my command"--Introduction, page 2.

Dikes, John Edward Walker

Bachelors Theses

"The term dikes is here used to refer duly to structures built out into running streams for the purpose of protecting the banks or of improving the channel of the river"--page 1.

A Design Of An Ore Dressing Plant, Arthur Ignatius D'Arcy

Bachelors Theses

No abstract provided.