Engineering Commons^™

A Study Of The Iodine Content Of Representative Missouri Waters, Edmond Carl Hunze

Masters Theses

"Investigations have shown that the iodine content of natural waters bears a direct relationship to the goiter incidence of a given region. A number of the states have analysed [sic] their water for this constituent in the development of this hypothesis. A search of the literature revealed the fact that with the exception of two instances the iodine content of Missouri water had not been determined. Since in certain regions of Missouri there is quite a prevalence of goiter, it was deemed important to determine the iodine content of Missouri waters. It was believed that such information would be a …

The System: Calcium Oxalate - Sulphuric Acid, Joseph Maple Wilson

Masters Theses

"The manufacture of oxalic acid includes as one of the steps in the process, the conversion of calcium oxalate to the desired oxalic acid by treatment with sulphuric acid, and the subsequent crystalization [sic] of the oxalic acid from the solution of it thus made. This investigation has dealt with this conversion step, with regard to the various factors affecting it. The effect of time, acid concentration, temperature, volume of solution, solubility of reaction products, and possible compound formation have all been considered, and from the information thus gained the conclusion has been drawn"--Introduction, page 1.

Skill And Accuracy Test In The Use Of Hand Woodworking Tools, Warren Prescott Dayton

University of the Pacific Theses and Dissertations

In view of the fact that the greatest argument in favor of any educational test is its need, one is compelled to keep this in mind while introducing a new test and give this factor first consideration. It is safe to say that any instrumental- ity that will aid the teacher in the understanding of his pupil and his present and potential ability is needed. Truly the various intelligence, aptitude and content tests, now in ever increasing use, have justified their existence upon this foundation of pedigogical need.

Mining Methods At The Higueras District, State Of Coahuila, Mexico, Harry Herbert Hughes

Professional Degree Theses

"The Higueras district, in the State of Coahuila, Mexico, is little known even in Mexico; and it is probably safe to say that not one out of every hundred engineers in the United States has even heart of it. This is easily accounted for by the fact that the district is small and relatively unimportant economically. Also, as one becomes more accustomed to think of mines, such as some of the big copper deposits, with productions running into thousands of tons daily, there is a tendency to pass over the small ones, giving them only a passing thought, if that. …

Fault Areas Of South Eastern Kansas Coal Beds, George Elmer Abernathy

Professional Degree Theses

"The most important coal producing district of the state as well as the oldest in point of age of production is that section of the coal bearing formations located in Crawford and Cherokee county Kansas, which also extends into Barton county, Missouri.

The district has a surface area of about 260 to 300 square miles. The eastern boundary of the district is the outcrop of the lower coal bed known as the Weir-Pittsburg bed. The outcrop follows a more or less irregular line from a few miles north of Columbus, Kansas, and runs in a general northeast direction, passing just …

A Water Supply System For A Small Mining Community, Paul Donovan Windsor

Professional Degree Theses

"This thesis deals with the problems met in solving the water supply question for a small coal mining community in southern Illinois. It will contain a brief general treatise on modern water purification with a discussion of the various methods and steps in modern practice, a set of drawings and specifications for a water supply system for this community together with an explanation of them"--Introduction, page 4.

Recovery Of Carbonate Copper Ore By Means Of Flotation At The Kennecott Copper Corporation Plant, Kennecott, Alaska, George Leo Richert

Professional Degree Theses

"The Kennecott Copper Corporation mines and the adjoining Mother Lode Coalition Co. mine, which the Kennecott Copper Corporation controls and operates as an integral part of their Kennecott, Alaska camp, are situated in the Nizina Mining District, 196 miles inland from Cordova, Alaska, the tide-water shipping point. The first claims were discovered in 1900, and these later became the property of the Kennecott Copper Corporation. The Kennecott holdings consist of 111 mineral claims and the Mother Lode Coalition Co. has 73 claims"--Introduction, page 4.

A Study Of Electrometric Methods For Determining Selenium And Tellurium, Bertie Lee Browning

Masters Theses

"The quantitative oxidation of tellurious acid to telluric acid by potassium dichromate has been shown by Lenher and Wakefield to be applicable to the volumetric determination of tellurium. The purpose of this investigation was to study the applicability of the electrometric method to this titration"--Introduction, page [1].

Electrothermic Dry Distillation Of Zinc, Ira Nathan Goff

Masters Theses

"Although the work described in this thesis cannot be considered as complete, until certain mechanical changes have been made and the furnace operated continuously over a considerable period of time, this electrothermic dry distillation process for the extraction of zinc from ores offers excellent commercial possibilities. The literature has been reviewed, the process that was used at East St. Louis described, and the results of work at the Mississippi Valley Experiment Station of the United States Bureau of Mines, Department of Commerce, Rolla, Missouri along the line of electrothermic metallurgy of zinc considered"--Summary, page 58.

A Study Of The Reduction Of Zinc Oxide By Hydrogen And Methane, Frederick Adam Weirich

Masters Theses

"The purpose of the investigation was to make a study of the reduction of zinc oxide by hydrogen and methane and to study the conditions for the most efficient condensation of the zinc vapor"--Investigations, page 4.

The Properties Of Refractories In Zinc Metallurgy. Part Iii. Comparison Of Various Clays, Richard Elkanah Sears

Masters Theses

"This thesis...contains a description of a part of a general investigation on the subject of the refractories used in the distillation of zinc. This investigation has been in progress for the past eighteen months at the Mississippi Valley Experiment Station of the United States Bureau of Mines, Department of Commerce, in cooperation with the School of Mines and Metallurgy of the University of Missouri. The first phase of this investigation had for its theme the determination of the properties of the fire clays and body mixtures now used in the manufacture of zinc retorts. The second phase deals with the …

Rill Stoping In The Butte District, Butte, Montana, Albert Booth Needham

Professional Degree Theses

"Numerous methods of stoping have been used in the mines of the Butte District, Butte, Montana, depending on the shape of the ore bodies, conditions of the walls and presence of fault zones or heavy ground. One of the methods tried out successfully in the past few years is that of using rill stopes, both open and timbered. The ideal conditions for adopting this method of mining require veins with nearly vertical dip so that the ore will slide into the chute. The author attempts to describe the various steps including how the development is done, how the stopes are …

The Water Works System Of The City Of Trinidad, Colorado, John Ludwig Gustav Lehman

Professional Degree Theses

"The Trinidad Water Works is a municipal owned public utility operated by the city under the jurisdiction and regulation of the Public Utilities Commission of the State of Colorado. The plant is operated by gravity and without filtration. Estimated value of plant $5,000,000.00. for convenience the subject of this thesis will be divided into sections, namely: Collection, Storage, Purification and Distribution. No distinct lines will be drawn between the divisions however, each being treated without particular regard one to the other"--page 2.

A Granular Briquet Resistance Furnace For The Electrothermic Dry Distillation Of Zinc Ores, William Mckinley Kahlbaum

Professional Degree Theses

"The work here described had for its purpose the development of a granular briquet resistance furnace for the electrothermic dry distillation of zinc ores"--Introduction, page 1.

The Electrolytic Recovery Of Copper From Rod Mill Pickling Solution At The Hawthorne Works Of The Western Electric Company, Incorporated, James Walter Scott

Professional Degree Theses

"Early in 1924 a copper rod and wire mill equipped for this manufacture of the copper wire required to supply the manufacturing needs of the Western Electric Company was installed at the company's Hawthorne Works, Chicago, Illinois. A brief description of the way in which copper wire is made is as follows"--Introduction, page 1.

Oil And Gas Report On North Louisiana And South Arkansas. Part One. Oil And Gas Fields Of North Louisiana And South Arkansas. Part Two. Probability Of Future Production North Louisiana And South Arkansas, Frederick Pine Shayes

Professional Degree Theses

"The purpose of this report is to furnish a general outline of the oil and gas fields of South Arkansas and North Louisiana. To properly cover the subject, the report is divided into two major parts, the first part dealing with the present and past producing territory, and the second part with probable future producing territory"--Introduction, page 1.

The Fissure System Of El Potosi Mine Of El Potosi Mining Company, Santa Eulalia, Chihuahua, Mexico, Carl E. Millikan

Professional Degree Theses

"The fissures traversing the country were the means of mineralizing the district. The North-South system of fissures have been determined to be pre-mineral, hence the most important. Their intersections with cross fissures are the regions of orebodies, and the intersections have always produced ore of mineable quantity. Especially important are the intersections of fissures in the "favorable" (fossiliferous) limestone beds. The favorable limestones are easily recognizable and can be traced thru all parts of the district because of their distinctiveness and the uniformity of the structure of the region"--Summary, page 19.

The Selection And Treatment Of Wood Poles As Used In Electric Distribution, Albert Charles Laun

Professional Degree Theses

"The purpose of this thesis is to assemble in a compact form all desirable information on the subject of wood poles as used for Overhead supports in the electrical distribution industry. This thesis is in reality a handbook of facts as gathered by actual experience and by a rather thorough research into the subject"--Purpose of the Thesis, page 3.

Report On The Matahambre Mine, Pinar Del RíO, Cuba, Edwin Lawrence Miller

Professional Degree Theses

"The Minas de Matahambre, S.A., is a Cuban corporation operating a copper-silver mine in the province of Pinar del Río, Cuba"--Ownership, leaf 1.

Evidence To The Production Of Commercial Oil From The Emerson-Texon Fold, Kurt H. De Cousser

Professional Degree Theses

"The area consists of a strip of country twelve to twenty five miles wide and nearly seventy miles long, extending from Stiles in Reagan County southwest-ward across Crockett County and Pecos County to the Big Canyon Ranch in Terrell County. Map #2 accompanying this report is a small scale geological map of the general region, which shows the location of the general area covered for this report with reference to drainage railroads &c.. The entire area worked in detail comprises nearly 1300 sq. miles or over 800,000 acres"--Location and topography, page 1.

Construction Details And General Discussion Of The 10 Watt Radio Telephone Transmitter At The Missouri School Of Mines, Leonard Oliver Williams

Bachelors Theses

"In radio communication it is necessary to have a device to radiate electrical waves and a device to receive electrical waves. Devices used for this purpose are called antennas"--The Antenna, page 1.

Design Of An Alternating Current Squirrel-Cage Induction Motor, Thomas Moffett Thompson

Bachelors Theses

"This thesis deals with the selection and specification of an induction motor"--leaf ii.

Selection And Arrangement Of Proposed Storage Battery Equipment For Physics And Electrical Engineering Laboratories, Otho Melvin Wilson

Bachelors Theses

"The object of this Thesis is to select and arrange the equipment for a 110 volt storage battery system to be used in supplying a variation of voltage to the Electrical Machinery, Electrical Measurement, and Physics Laboratories, located in the basement of Norwood Hall"--page 4.

The Properties Of The Fire Clays Used For The Manufacture Of Zinc Retorts, Adolph Harmon Kuechler

Masters Theses

"The ultimate object of this refractories investigation is to develop a body for zinc retorts, or changes in the method of their manufacture, that will result in better retorts than the ones now in use. In doing this, the question of permissible cost must, at all times, be kept in mind. The immediate object of the present phase of this investigation, of which this thesis covers only a part, is to determine the physical and chemical properties of the refractories (fire clays, grogs, bodies, etc.) now used for the manufacture of zinc retorts. This will be a basis for later …

A Method Of Snow Surveying And Its Application To Forecasting Stream Flow, Leslie Bowen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The value of knowing ahead of time the amount of water to be expected from any given stream before the season is to far spent is a valuable asset.

A Study To Determine The Feasibility Of Irrigating The Lands Included In The Cache Valley Water Conservation District No. 1, I. Donald Jerman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this report is to investigate the feasibility of irrigating the lands of the Cache Valley Water Conservation District No. 1. The district, as it now stands, is very much in need of many improvements. The Main canals are now in use and are in a good condition to serve all the lands with the required amount of water, but the few laterals that are now constructed, are in a poor condition, with the remaining laterals yet to be finished.

Before successful irrigation can be practiced, a large portion of the land will require leveling and small areas …

A Study Of The Flow Of Water Over Triangular Weirs And The Determination Of Coefficients Of Discharge For Small Heads, J. Milton Barrett

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The development of artesian and pumped wells as a source of irrigation water has created the need for a measuring device which will be accurate for small discharges. The thin edged weir has been accepted as one of the most accurate and desirable measuring devices for this work. Three types of weirs are now commonly used: the Rectangular, the Cipolleti, and the Triangular Notch weir. Of these types the triangular notch is probably best suited for small discharges (under 3 second feet). The various formulae for discharge over 90% Triangular weirs have been accurately determined for heads over two tenths …

Cupola Practice In Modern Gray Iron Foundry, George E. Mellow

Professional Degree Theses

"Cupola practice, as described in this paper, will include only the practical operation of a cupola and the details of the work necessary in daily routine, and very little of the theory of combustion, or history of cupola development, is presented. A brief description of the cupola will give an idea of its construction, and the names of the parts may be found on the sketch herewith"--page 1.

Data On Edible Vegetable Oil Processes, John Charavelle Ingram

Professional Degree Theses

"The term American Edible Vegetable Oils includes only four distinct oils and under certain economic conditions perhaps a fifth. All these oils are to a certain extent interchangeable in their uses, their employment in specific commodities depending largely on their relative price. Listing them in the order of their economic importance, their principal usages are given in the following paragraphs"--Introduction, page 1.

The Chloride Volatilization Of Silver And Lead From Zinc Concentrate, Edward Phillip Barrett

Professional Degree Theses

"The Yellow Pine mine at Goodsprings, in southwestern Nevada, yields an ore nearly free from gangue constituents. The ore as mined contains 8 to 12 per cent lead, 8 to 12 ounces silver, and 30 to 35 per cent zinc, and is milled in a gravity concentration plant where separation of the lead and zinc is made. The ore is nearly all carbonate, except a small amount of galena, and the lead concentrates contain considerable zinc; the zinc concentrates contain lead and silver in quantities ranging from 3 to 7 pr cent and 3 to 7 ounces, respectively, The lead …