Digital Commons Network^™

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].

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 …

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.

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. …

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.

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 …

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.

Test: Fordson Ricardo Engine Head, Nebraska Tractor Test Lab

Nebraska Tractor Tests

Brake horsepower test performed on the on the Waukesha Motor having a Ricardo Head for the Fordson Tractor.

Test 114: Heider 15-27, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …

Test 111: Oil Pull Model M 20-35, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …

Test 112: Oil Pull Model L 15-25, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …

Test 117: Mccormick-Deering "Farmall", Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …

Test 116: Oil Pull Model R 25-45, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …

Test 118: Minneapolis Type B 17-30, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …

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.

Test 113: Monarch Model C 25-35, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …

Test 115: Shawnee Thirty (Road Maintainer), Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary. All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University. Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …

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.

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.

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 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.

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.

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.

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.

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 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 …