Engineering Commons^™

Graphical Analysis Of Certain Diffusion Problems., Wylie C. Kirkpatrick 1918-2008

Electronic Theses and Dissertations

No abstract provided.

Temperature Relationships In Tent Structures., Earl Robert Gerhard 1922-

Electronic Theses and Dissertations

No abstract provided.

Aircraft Finishes For Elevated Temperatures., Wilbur Louis Hayne 1922-

Electronic Theses and Dissertations

No abstract provided.

Removal Of Benzene-Insolubles From Coal Tar., John W. Mckenna 1924-2012

Electronic Theses and Dissertations

No abstract provided.

The First Approximate Conditions For The Formation Of Mesomorphous Coacervates., Stanley H. Jury 1916-1983

Electronic Theses and Dissertations

An analysis of the literature shows the close analogy between liquid crystalline phases in solution (fluids separating from main portion of solution and having some of the directional properties of crystals) and unipolar coacervates (solvated micelles of like charge separating as a distinct colloidal phase). A theory is here advanced that liquid crystalline phases in solution are the direct result of a maximum in osmotic pressure which is predictable from the first approximate equation of the Debye-Huckel theory in the same manner as unipolar coacervates were predicted by I. Langmuir. Application of the theory to aqueous soaps, investigated by Vold …

The Development Of An Ethocel Automobile Touch-Up Lacquer And A Suitable Sanding Surfacer : Ii. A Study Of The Physiological Effect Of Color Using The Munsell Color Notation., Thaddeus Andrew Peake 1919-1999

Electronic Theses and Dissertations

No abstract provided.

Heat Sealing Properties Of Ethyl Cellulose Modified Lacquers., William B. Moore 1924-2015

Electronic Theses and Dissertations

No abstract provided.

A Distillation Study : Ii. Factors Affecting Plate Efficiency : Iii. Properties Of Laminated Wood Glue Lines., Jack H. Nichols 1922-2007

Electronic Theses and Dissertations

No abstract provided.

Ethylcellulose Lacquer Coatings For Polystyrene Plastics., Stuart V. Heil

Electronic Theses and Dissertations

An ethylcellulose lacquer system for both decorative and protective purposes was developed for use on polystyrene plastics. It was found that a one-coat lacquer containing only alcohol solvents produced the most satisfactory finish. Formulations were based on experimental work, conducted to determine the effect of the various lacquer components on the plastic. The results of a study of formulations on a two-coat system are presented.

A Plastic Protective Film Coating For Metals., Arthur S. Widzer 1914-2002

Electronic Theses and Dissertations

No abstract provided.

The Surface Impregnation Of Wood : Ii. Use Characteristics Of Impregnated Wood : Iii. Investigations Of Resin Adhesives., John V. Birkel

Electronic Theses and Dissertations

This thesis is divided into three parts: I. The Surface Impregnation of Wood; II. Use Characteristics of Impregnated wood; and III. Investigations of Resin Adhesives. The material presented in Part I is a continuation of previous experimentation that had established general methods for producing a hardened surface wood product. The methods involved parting of the wood fibers on the surface by a special serrating tool, followed by a surface impregnation and final curing. This section presents work carried on to determine the optimum conditions for serrating and subsequent impregnation. The effect of species on impregnation. and the impregnation of unfinished …

Improved Techniques For Washing Iron Blue Suspensions : Ii. The Preparation Of O, O'-Dichlorobenzidine From O-Chloronitrobenzene., Marvin L. Gernert

Electronic Theses and Dissertations

I. IMPROVED TECHNIQUES FOR WASHING IRON BLUE SUSPENSIONS

The investigation of several procedures for the speeding of the washing of iron blue suspensions to remove electrolytes is reported. The use of several techniques to coagulate blue particles in the colloidal range to cause more rapid settling was found to be of little value. A conventional Oliver filter and centrifugal clarifier were found to be unsatisfactory for clearing iron blue suspensions. Considerable advantage in washing by settling and decantation was obtained with the settling of the blue suspensions in relatively shallow vessels. A continuous washing procedure was developed whereby the blue …

A Graphical Solution For Batch Steam Distillation Of A Binary Mixture., Howard D. Carlson 1921-

Electronic Theses and Dissertations

The theory for the graphical solution of batch steam distillation of a binary mixture is presented and illustrated. The results obtained from this graphical procedure are compared with actual experimental results. The comparison showed very close agreement between the graphical results and the experimental results. Three sets of experimental data are shown for benzene-bromobenzene mixtures and one complete set for benzene-toluene mixtures.

An Investigation Into The Adaption Of The Induction Furnace For Determining The Equilibrim Diagram Of The System Cu2s-Fes, John R. Cole

Bachelors Theses and Reports, 1928 - 1970

This investigation was started in an effort to find an accurate and efficient method of determining the freezing points of ferrous and cuprous sulphides, mixtures of the two substances, and from this to establish the liquidus line of the equilibrium dia­gram.

Economic Talc Deposits Of Montana And Related Firing Problems, Charles J. Lyden

Bachelors Theses and Reports, 1928 - 1970

This thesis has to do with a study of the produc­tion of talc in Montana, describing the local geology of each deposit, and a description of the laboratory tests that were made on various grades of Montana talc in an attempt to determine why some grades of talc can be burned in solid forms while others must be ground, mixed with a binder and molded.

A Preliminary Investigation Of The Hydrometallurgy Of Philipsburg Manganese, W. L. Goodman

Bachelors Theses and Reports, 1928 - 1970

In the past the steel industry of the United States has depended almost wholly on imports for its supplies of manganese. Although it is well known that there are enormous deposits of low grade manganese ore in the United States the production of substantial amounts of ferro-grade mater­ial from domestic sources presents a field for con­structive and practical research.

Action Of Diatoms On Clay, Joseph Harvey Renfrew

Masters Theses

"With the recent trend toward the use of higher temperatures and more severe service conditions in the metallurgical and refractories industries there has developed a constantly greater demand for high-alumina clays, that is, clays in which the alumina content is considerably above that of pure kaolinite, Alâ‚‚O₃2SiO₂·Hâ‚‚O. However, the known reserves of good diaspors are so small that ceramic engineers are already turning to basic refractories in order to have sufficient materials for work at high temperatures. Even the slightest reflection on the needs of the refractories industry will show that such substitutions are strictly limited, and possible only where …

An Analysis Of Man Power Efficiency In Drilling Procedures In The Tri-State Mining District, Julian Alban Fuller

Masters Theses

"This thesis embodies the results of an investigation, by the time study method, of certain phases of drilling procedures recently brought into practice in the Tri-State mining district. The field work was accomplished during the months of July, and August 1945; the data obtained therefrom and the analysis presented in this dissertation apply to the practice in effect at that time"--Preface, page ii.

Exploration For Barite Deposits In Cole County, Missouri, Arthur William Brune

Masters Theses

"Barite is mined in the Southeastern and Central districts of Missouri. The Counties of Franklin, St. Francois, and Washington comprise the Southeastern district, and the counties of Benton, Camden, Cole, Miller, Moniteau, and Morgan comprise the Central district. Although the latter region is the larger of the two, its production of barite is far less than that of the other. The area which is discussed in this report is in the southwestern corner of Cole County. The main points of the problem were: 1. To determine the features, if any, which apparently controlled the localization of the barite deposits in …

The Mechanical Properties Of Mine Rocks And A Standardized Test Procedure For Their Determination, Walter Edwin Lewis

Masters Theses

"The problem involves studies of the mechanical properties of rocks and was undertaken in an attempt to determine practical data that will help in estimating the supports required to maintain the roofs of mines during and after mining operations. One of the most important problems in mining today is that of the analysis of the action of mine-rock under stresses. From such an analysis in any given mining venture it should be possible to obtain cheaper methods of mining because the supports necessary to maintain the walls and roof of an excavation may be determined on the basis of how …

The Age Hardening Of Copper-Manganese-Nickel Alloys, William James Barnett

Masters Theses

"The Bureau of Mines in conjunction with their Electrolytic Manganese Alloys program has developed a series of age hardening copper-manganese-nickel alloys having properties which compare favorably with those of copper-beryllium alloys...An unusual and highly desirable characteristic of these alloys is their insensitiveness to rate of cooling from the solution temperature. Air cooled and water quenched samples will have identical time hardness curves on being aged. Instead of requiring closely controlled conditions characteristic of many age hardening alloys, these alloys cannot be subjected to a thermal mechanical handling which will prevent hardening on their being subsequently heated to the aging temperature. …

Ceramic Properties Of The Clays Of The Polo Gas Field, Clarence Arthur Lambelet

Masters Theses

"In Western and Northwestern Missouri there exist many natural gas fields of such limited size and of such great dispersion that it is not economical to utilize their products by the construction of pipe lines to consuming centers. Thus a large source of natural wealth is lying idle. This wealth could be utilized, however, if some manufacturing process requiring large amounts of fuel were located in the vicinity...The availability of fuel is the reason for interest in the area, though an investigation should be made to assure the quality and quantity of the fuel in any selected area. the adequacy …

Prospecting, Developing, And Mining Bentonite Deposits, John Patrick Rasor

Masters Theses

"Clay and clay-like minerals are mined in many localities for a large number of uses. Most of these mines are small, seasonal operations. Common practice in these types of pits is to strip and mine clay from shallow overburden depths without the aid of careful prospecting and developing, and with little or no engineering technique. Bentonite deposits which must be continuously mined at tonnages from 5,000 to 7,500 tons per month require that the entire project be carefully planned and engineered so suitable equipment may be obtained and operational cost minimized. This thesis is concerned with the prospecting, developing, and …

Flotation Of The Oxidized Ores Of Zinc, Fred Henry Bunge

Masters Theses

"There is no satisfactory method of concentrating the finely disseminated oxide ores of zinc. Gravity methods of concentrating such ores may be used for coarsely crystalline materials in which the zinc material is free at approximately 10- to 35-mesh or coarser. In addition, gravity methods of concentration do not give a satisfactory separation on those ores in which the gangue mineral is small. As a result there is need for a method of beneficiating various deposits of oxidized zinc ores. The two commercially important oxidized zinc minerals under consideration are smithsonite, the zinc carbonate and hemimorphite, frequently referred to as …

A Study Of Mine Scraper Buckets And Their Efficiency, Austin Bond Clayton

Masters Theses

"The use of power drawn scrapers, often called "slushing", for the moving of ore, stops filling, and waste rock has become standard practice in many mining operations. Several types of scrapers have been developed by practical application or by trial and error methods. However, a direct comparison of these scraper types under identical conditions has not been noted in a review of literature on the subject of mechanical loading. Written inquiries to authorities on scraping practice have brought replies that no previous comparisons of scraper types on a modal scale have been attempted. Therefore, the following thesis problem was set …

The Characteristics Of Fiberglas As A Column Packing : Iii. Mass Transfer Coefficients., Charles P. Talbott 1923-2000

Electronic Theses and Dissertations

No abstract provided.

The Characteristics Of Fiberglas As Column Packing : I. Design Of Column : Ii. Mass-Velocity Characteristics., Robert B. Akell 1921-

Electronic Theses and Dissertations

No abstract provided.

Surface Impregnation Of Wood : Ii. Gaseous Impregnation Of Wood : Iii. Investigations On Submarine Decking : Iv. Investigation Of Marine Adhesives., Otto J. Mileti

Electronic Theses and Dissertations

This thesis presents results on methods used to produce a hard surfaced wood product. The methods involve the parting of the wood fibers on the surface by a special serrating tool, followed by surface impregnation and final curing. The serrations on the wood surface produce an artificial grain upon curing. A preliminary investigation was made to improve the rot-resistance of wood by gaseous treatment. Results of such treatments show some limited success with formaldehyde on yellow poplar and warrant further study. An investigation was made to find a substitute for teak wood used on submarine decking. A number of combinations …

Permability And Porosity Of Devonian Dolomites In Northwestern Montana, Jack W. Nordquist

Bachelors Theses and Reports, 1928 - 1970

The purpose of this investigation is to record data per­taining to porosity and permeability derived from physical tests performed on Devonian dolomites occurring in northwestern Montana, and to subsequently summarize the results obtained as an aid in determining the possibility of those dolomites being suitable reservoir rocks for oil and gas accumulation.

Vermiculite, Occurence, Character, And Concentration Of Mineral From The Pony District, Madison County, Montana, A. Saterdal

Bachelors Theses and Reports, 1928 - 1970

The purpose of this paper is to investigate the occurrence and character of the vermiculite deposits approximately four miles northwest of Pony; Madison County, Montana. The deposits are situated in rolling foothills at the northern end of the Tobacco Root Mountains.