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Articles 76741 - 76770 of 77189

Full-Text Articles in Engineering

Method Of Sampling Diamond-Drill Core, William Henry Mccartney Jan 1922

Method Of Sampling Diamond-Drill Core, William Henry Mccartney

Professional Degree Theses

"The method of sampling and preparing samples of diamond-drill core, explained in this article, was used by the writer during a drilling campaign at Stirling, Cape Breton, Canada, in 1917"--page 4.


Metallurgical Processes Involving Surface Phenomena, Reginald Scott Dean Jan 1922

Metallurgical Processes Involving Surface Phenomena, Reginald Scott Dean

Professional Degree Theses

"Surface Tension of Liquid Metals. The surface tension of liquid metals is much greater than that of any other class of substances. Barkins lists the various substances in the following order as to surface tension; organic compounds, water, molten salts, metals"--Part I. General, page 1.


The Roasting And Magnetic Separation Of Wisconsin Ores And The Utilization Of The By-Products, Earl George Deutman Jan 1922

The Roasting And Magnetic Separation Of Wisconsin Ores And The Utilization Of The By-Products, Earl George Deutman

Professional Degree Theses

"In the Wisconsin field, the zinc blende is usually found associated with iron sulphide in the form of marcasite. This ore, after being milled and concentrated at the mines, is sent to separating plants for further treatment by roasting and magnetic separation, inasmuch as the mixed blende and marcasite concentrate, owing to the high iron content, is not suitable for the zinc smelter, and the magnetic separation scheme of separation must be resorted to"--page 1.


The Flood Control System Of Newport, Ark., Alvis Frederick Denison Jan 1922

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 …


A Metallographic Study Of Copper Mattes, Edward James Torrence Jan 1922

A Metallographic Study Of Copper Mattes, Edward James Torrence

Bachelors Theses

"The metallographic knowledge of copper mattes or mattes in general for that matter, although extensive, is, to put it mildly, rather diversified. One authority, for instance, believes that mattes are sulphide dissolving compounds there being no eutectiferous series involved. Another believes that the matte constituents enter into a eutectiferous series, compounds being present. Still a third contends that there are no compounds formed but that a simple eutectiferous range exists between certain limits outside of which the end members of the series form solid solutions with each other. In so far as there exists seeming absolute proof for all of …


Design And Construction Of The Experimental Mine, Robert Knox Stroup Jan 1922

Design And Construction Of The Experimental Mine, Robert Knox Stroup

Masters Theses

"The mining laboratory and experimental mine at the Missouri School of Mines was opened in 1913. At a suitable location, on the site of an old dolomite quarry, one and one half miles southwest of town a tunnel was started into the hillside and the necessary plant erected. This plant consisted of a fifty horse-power Erie Iron Works boiler of the modified locomotive type, and an Ingersoll Rand type 10 single stage duplex air compressor of a capacity of one hundred cubic feet of free air per minute. This plant was in operation during the fall months of each year …


Bridge Over Pitman Creek In Pulaski, David Mccord Phelps Jr. Jan 1922

Bridge Over Pitman Creek In Pulaski, David Mccord Phelps Jr.

Theses and Dissertations--Civil Engineering

Accounting of all aspects of the erection of the bridge over Pitman Creek in Pulaski County Kentucky.


Determination Of The Solubilities Of Lithium, Sodium, And Potassium Sulphates In Absolute Methyl And Ethyl Alcohols, Jennie Lynn Lenox Jan 1922

Determination Of The Solubilities Of Lithium, Sodium, And Potassium Sulphates In Absolute Methyl And Ethyl Alcohols, Jennie Lynn Lenox

Masters Theses

"It was thought by the author that there might be some relation between the solubility of a salt in the alcohols and the position of those alcohols in the series of monohydric alcohols; that is, that there should be a definite increase or decrease in the solubility of any particular salt in going from a higher to a lower alcohol. The object of this paper was to find the solubilities of some simple salts in as pure alcohol as could be prepared, and to find any relationships if possible"--page 2.


Drill Steel Investigation, Richard J. Stroup, Kurt H. De Cousser Jan 1922

Drill Steel Investigation, Richard J. Stroup, Kurt H. De Cousser

Masters Theses

"

Purpose of Investigation

To determine the best composition of a straight carbon drill steel for drilling in granite.

Method of Investigation

  1. Obtain several brands of standard grade drill steel. Determine analysis and transformation points of each.
  2. Determine that heat treatment which gives the best drilling qualities in granite.
  3. Determine the micro-structure of such steel.
  4. Obtain steel of a certain specified composition considered best for the conditions and compare the results on this steel with the results obtained on the market products.
  5. Design of heating furnace for forging steels.

It will be observed from what follows that this outline was …


Drill Steel Investigation, Joseph Herman Rohloff Jan 1922

Drill Steel Investigation, Joseph Herman Rohloff

Masters Theses

"Several brands of standard grade drill steel were obtained [and tested]"--page 1.


High Speed Steel - Its History, Development, Manfacture, Metallography, And Constitution, Including An Extended Bibliography, James Presley Gill Jan 1922

High Speed Steel - Its History, Development, Manfacture, Metallography, And Constitution, Including An Extended Bibliography, James Presley Gill

Masters Theses

"There is no doubt but that the making of Steel was known and practiced by the early Greeks probably several centuries before the birth of Christ. There have been discoveries of pre-historic forges and smelters evidently used for the making of iron and steel and it is certain that implements made of these materials dates back to antiquity. As to the methods of making the steels of antiquity there is little known, but it is quite probable since iron has a strong affinity for carbon that in the forging of the iron it's contact with the carbonaceous fuel would absorb …


Sewage Disposal Of The City Of Milwaukee With Experimental And Construction Features, Walter W. Genrich Jun 1921

Sewage Disposal Of The City Of Milwaukee With Experimental And Construction Features, Walter W. Genrich

Bachelors’ Theses

The City of Milwaukee, for a good many years has been confronted with the big problem of sewage disposal, in asmuch as the sewage up to the present time has been allowed to flow into its rivers which in turn emptied into Lake Michigan from which the City obtained its water supply, and consequently contaminated its surrounding waters to such an extent that the City's public health was very much at stake.


Investigations To Determine A Possible Source Of The Carboniferous Sandstone Of The Ozark Region, John Hyer Bowles, Lewis Ely Davidson, William Ferdinand Netzeband Jan 1921

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.


A Report On Drill Steel Wear At Isle Royale Mine, Houghton, Michigan, James Joseph Dowd Jan 1921

A Report On Drill Steel Wear At Isle Royale Mine, Houghton, Michigan, James Joseph Dowd

Professional Degree Theses

"In 1917 the miners at the Isle Royale Copper Company's mines were constantly complaining about poor drills and an investigation was made to discover any reasons for the complaint"--page 1.


Flotation Tests On A Table Sludge From The Golden Rod Milling Company At Tar River, Oklahoma, William H. Kamp Jan 1921

Flotation Tests On A Table Sludge From The Golden Rod Milling Company At Tar River, Oklahoma, William H. Kamp

Professional Degree Theses

"The purpose of this experimental work is to give to the operators of the Joplin District some facts concerning the possibilities of flotation in their district. An attempt will be made to show that high-grade concentrates can be made economically; also that the usual gravity concentration. It is believed that the oil and reagent used will not put a prohibitive cost burden upon the operators. It is, of course, realized that flotation concentrates of any zinc tenor bear a penalty because of the fineness of the product"--Introduction, page 3.


A Complete Coal Mine Survey, Harry A. Kluge Jan 1921

A Complete Coal Mine Survey, Harry A. Kluge

Professional Degree Theses

"As an introduction to this thesis, it would probably be well to give the laws of the State of Illinois relative to mine maps. These laws come under "An Act to revise the laws in relation to the coal mines and subjects relating thereto, and providing for the health and safety of persons employed therein. Approved June 6, 1911, inforce July 1, 1911. leaf 1911, page 388." Section 7 reads as follows: (a) The operator of every coal mine in the State shall make, or cause to be made, an accurate map or plan of such mine, drawn to a …


A Discussion Of The Geological Department Of An Oil Company. Part Ii. Report On Structure North Of Ochelata, Washington Co., Okla., Lawrence Joseph Zoller Jan 1921

A Discussion Of The Geological Department Of An Oil Company. Part Ii. Report On Structure North Of Ochelata, Washington Co., Okla., Lawrence Joseph Zoller

Professional Degree Theses

No abstract provided.


The Heat Treatment Of Cast Steel, Fred Grotts Jan 1921

The Heat Treatment Of Cast Steel, Fred Grotts

Professional Degree Theses

"Owing to many difficulties reported from the battle fields of France also from many sections of the United States, Mexico, Africa and South America relative to the functioning of the "Caterpillar" track an intensive research was begun early in the spring of 1919 to develop or perfect a material that could be made into intricate forms and which would have such physical properties as would withstand to a maximum degree, the abrasive action of rock and sand while at the same time having a high tensile strength and resistance to shock. A further requisite was that this material must be …


The Manufacture Of Sulphuric Acid By The Chamber Process At Isabella, Tennessee, Albert Leo Trent Jan 1921

The Manufacture Of Sulphuric Acid By The Chamber Process At Isabella, Tennessee, Albert Leo Trent

Professional Degree Theses

"As the regions surrounding the smelteries are growing more densely populated, the companies operating in these districts find if necessary in many cases to take care of their waste gases which are injurious to the surrounding vegetation and thereby avoid many expensive lawsuits and claims from the land owners in the district...The smelters at once began to look around for some method of taking care of their fumes...The companies then began to install the more expensive process of handling their fumes by adding a sulphuric acid plant to their smeltery. This is very expensive to install but is not only …


Investigations To Determine A Possible Source Of The Carboniferous Sandstone Of The Ozark Region, John Hyer Bowles, Lewis Ely Davidson, William Ferdinand Netzeband Jan 1921

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

Professional Degree 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.


The Mexican Oil Fields, Raul Chavez Jan 1921

The Mexican Oil Fields, Raul Chavez

Professional Degree Theses

"Owing to the large area involved in this paper it is proposed to give only briefly the history, geology and development of the oil industry in Mexico, as well as to discuss in a general way the present oil legislation which has brought so much comment in the papers and has raised to much diplomatic trouble between the Mexican and United States Governments. This discussion is therefore of a brief nature and only the most culminant features and details of the subject in mind are here treated. The information and data here given were accumulated during personal examination of the …


Geologic Conditions Affecting The Accumulation Of Oil And Gas In The Beggs District, Oklahoma, John Charles Miller Jan 1921

Geologic Conditions Affecting The Accumulation Of Oil And Gas In The Beggs District, Oklahoma, John Charles Miller

Professional Degree Theses

"It is generally accepted that there is lack of parallelism between surface and subsurface beds and between the productive sands in the Beggs District, a condition similar to that which obtains in the Cushing Field. The explanation of this condition as given on page 31, Bulletin 658, U.S. Geological Survey, is: 1) The difference in resistance to compression of the hard and soft beds of which the formations of the Cushing Field are composed; 2) The lenticular form of the Bartlesville sand (the equivalent of the Glen; Gas of Morris pool); 3) One or more unconformities between surface beds and …


Mine Surveying In The Missouri Coal Fields, Edgar C. M. Burkhart Jan 1921

Mine Surveying In The Missouri Coal Fields, Edgar C. M. Burkhart

Professional Degree Theses

"The mines surveyed and included in this thesis are certain mines in the foremost and second largest producing counties in the state, namely Macon and Adair county. This thesis also includes surveying at one mine in Randolph County ... The mines included in this thesis operate mainly in the Bevier bed. This seam contains an average of 41 inches of coal in Adair County and is somewhat thicker in Macon and Randolph County. All mines in the Bevier bed are operated on the room and pillar system of mining with about 50 to 60 percent extraction in Adair County and …


Investigations On Oklahoma Chats, Homer Chalmers Kerr, August Francis Delaloye Jan 1921

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.


The Copper Deposits Of Shannon County, Missouri, John Hyer Bowles, Lewis Ely Davidson Jan 1921

The Copper Deposits Of Shannon County, Missouri, John Hyer Bowles, Lewis Ely Davidson

Masters Theses

"The object of this report has been three-fold. First, it has been deemed necessary to discuss the general geology of the area about Eminence, showing the distribution and character of the different formations. The distribution is shown on a topographic map of the Eminence Quadrangle...In the second place, it is intended to give a detailed account of the history, development, and extent of mining operations in Shannon county, with the amounts of production and the occurrence of the ore. The third object of this report is to develop a probable theory for the genesis of the ore, and to discuss …


Furfural (Furfuraldehyde) And Some Of Its Derivatives, Marion Smith Badollet Jan 1921

Furfural (Furfuraldehyde) And Some Of Its Derivatives, Marion Smith Badollet

Masters Theses

"In the spring of 1919 the Eastman Kodak laboratories suggested to the chemistry department of the Missouri School of Mines and Metallurgy that experiments on small-scale production of furfural be undertaken. After a series of experiments a small amount of this product was made and a report was given before the American chemical Society at St. Louis in April 1920. The furfural prepared at the Missouri School of Mines and Metallurgy was sold to the Eastman Kodak laboratories. Within recent years very little experimental work has been done on furfural. It commands a high price as only small amounts are …


The Action Of Nitrogen Trioxide On Pinene, Ernest Wayne Rembert Jan 1921

The Action Of Nitrogen Trioxide On Pinene, Ernest Wayne Rembert

Masters Theses

"The action of nitrous acid on pinene was first studied by Pesci and Bettelli in 1885. they obtained an oil, which, when treated with NH₄OH and steam distilled gave a product of the formula C₁₀H₁₆NO₂. At this point the investigation was discontinued. It is the purpose of this work to show the true mechanism of the reaction and also to establish the formula and nature of the products obtained"--Introduction, page 3.


The Preparation Of Zinc Chloride From Smelter Waste, Victor K. Fischlowitz Jan 1921

The Preparation Of Zinc Chloride From Smelter Waste, Victor K. Fischlowitz

Masters Theses

"Interest in the matter of recovering zinc from residual material attaches through the value of a practical method of recovery consistent with commercial operations. The material used in this work at the Missouri School of Mines and Metallurgy was supplied by one of the large chemical firms of Saint Louis"--Introduction, page 3.


Mining, Concentration And Refining Of American Flake Graphite By The Griesemer Graphite Company, Joseph C. Barton Jan 1920

Mining, Concentration And Refining Of American Flake Graphite By The Griesemer Graphite Company, Joseph C. Barton

Professional Degree Theses

"The Griesemer Graphite Company was incorporated June 3, 1916, under the laws of Alabama, for the purpose of mining, milling and refining of flake graphite...Owing to strong competition in the graphite game, it will be impossible to give many interesting facts and figures in this thesis. The screen analysis worked for after each operation is carefully watched and the preparing of the ore, as well as the sizing of the flake, is one of the most important features in the production of flake graphite, especially that grade required by the crucible makers and the lubricating manufacturers. The carbon content is …


Unique Method Of Driving Large Tunnel At The Hannibal Quarry Of The Atlas Portland Cement Company, James Leonidas Boucher Jan 1920

Unique Method Of Driving Large Tunnel At The Hannibal Quarry Of The Atlas Portland Cement Company, James Leonidas Boucher

Professional Degree Theses

"During the development of operations at the limestone Quarry of The Atlas Portland Cement Company, Hannibal, Mo., it was found necessary to drive a large tunnel from one open "cut" to a point where the opening up and development of other "cuts" could be carried on"--page 1.