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Articles 137251 - 137280 of 137439

Full-Text Articles in Engineering

Report Of Coal Prospect, And Subsequent Development, John Adrian Garcia Jan 1903

Report Of Coal Prospect, And Subsequent Development, John Adrian Garcia

Professional Degree Theses

"In the fall of 1901, the writer was engaged by the Republic Coal Mining Company of Aurora Springs, Miller County, Missouri, as Engineer in charge of operations connected with the opening up of their coal mine. The data in this report was never submitted to the owners of the property, because of a request from them that the work of opening up be pushed as rapidly as possible, and [the] mine be put in condition to ship coal; and because the data embraced facts already known to the management, who were determined to open the property regardless of the evidence ...


Cyanide Practice, John A. Rogers Jan 1903

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 Jan 1903

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.


The Destructive Distillation Of Pine Sawdust, Frederick Hauenstein, Herbert Arno Roesler Jan 1903

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 Jan 1903

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 Jan 1903

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 Jan 1903

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

Bachelors Theses

No abstract provided.


Gold Precipitation, William H. Gill, Raphael Curier Alexander Jan 1903

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 Jan 1903

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 ...


Description Of El Paso Consolidated Gold Mine, Edwin Thompson Perkins Jan 1902

Description Of El Paso Consolidated Gold Mine, Edwin Thompson Perkins

Professional Degree Theses

No abstract provided.


Report On The Reed, Stimson And Kelley Copper And Iron Banks Of Phelps County, Mo., Albert Hill Fay, Carlos E. Martinez Jan 1902

Report On The Reed, Stimson And Kelley Copper And Iron Banks Of Phelps County, Mo., Albert Hill Fay, Carlos E. Martinez

Bachelors Theses

"PRELIMINARY STATEMENT with reference to the formation of limonite and hematite, the principal iron ores of the Ozark District. Iron and copper in solution as sulphides, coming in contact with lime or magnesium carbonates, will be precipitated as pyrite or marcasite and chalcopyrite. Hence the origin of this class or ores. These will in time oxidize to magnetite or hematite, and these in turn will form limonite, and the copper sulphide, or chalcopyrite, is oxidized to the carbonates, malachite and azurite"--page 1.


Power Utilization Of Meramec Spring, Francis Henry Walsh, Lawrence May Jan 1902

Power Utilization Of Meramec Spring, Francis Henry Walsh, Lawrence May

Bachelors Theses

"Meramec Spring is situated in the east central part of Phelps County, Missouri, about one quarter of a mile west of the county line. The spring proper is in the center of a small natural amphitheatre from which the water flows through a valley which has a bearing of approximately N. 30 degrees W., about one quarter of a mile from the spring the course of the stream is changed about sixty degrees to the east, one quarter mile from this bend the stream joins the Meramec River...The volume of water delivered by the spring is modified to some ...


Aluminum As A Commercial Conductor Of Electric Energy, George Edwin Lyman, Edward J. Morris Jan 1902

Aluminum As A Commercial Conductor Of Electric Energy, George Edwin Lyman, Edward J. Morris

Bachelors Theses

"In considering the adaptability of any metal to serve as a distributing agent of electrical energy, the investigation must shape itself along three lines, viz, - the electrical, the physical and the chemical properties which the metal may possess. Evidently a deficiency in any of these properties, if serious, will debar it from successfully coping in the market with its competitors. A metal may have excellent conductivity and its behavior electrically may be thoroughly satisfactory, but if it lacks strength, physically, or ability to resist the destructive forces of the atmosphere, chemically, it is obviously inadaquate sic to serve as a ...


Lixiviation Of A Silver Ore By The Russell Process, John Lewis Pickles, Ernest Albert Mortland Jan 1902

Lixiviation Of A Silver Ore By The Russell Process, John Lewis Pickles, Ernest Albert Mortland

Bachelors Theses

"The purpose of this investigation was to determine by a series of experiments, the action of the Russell solution on a particular ore; and to determine the best size to crush to, the strength of the solution to use, the temperature most suited, and the length of time for best extraction, and finally to come to a conclusion whether or not the ore was suited to this Process"--page 1.


Occurences And Chemical Composition Of Some Iowa Coals, Benjamin Newton Norton, Harry Noel Rex Jan 1902

Occurences And Chemical Composition Of Some Iowa Coals, Benjamin Newton Norton, Harry Noel Rex

Bachelors Theses

No abstract provided.


Copper Bismuth Alloys, Samuel Marshall Greenidge Jan 1902

Copper Bismuth Alloys, Samuel Marshall Greenidge

Bachelors Theses

No abstract provided.


Prospecting In Western Mexico, Theodore S. Delay Jan 1901

Prospecting In Western Mexico, Theodore S. Delay

Professional Degree Theses

"This article is dedicated and addressed to any man who contemplates a prospecting expedition in Mexico. I have made no attempt at a display of literary elegance, or scientific erudition. My aim has been to point out and explain such of the conditions of the business as are peculiar to Mexico. If any one, after having perused these pages, should find himself thereby the better able to cope with the difficulties of such an expedition, a rather unprofitable experience of the writer will have been not wholly fruitless"--page 31.


Report On The Onyx Deposits Of Boiling Springs Cave, Ignatius J. Stauber, Fred R. Koeberlin Jan 1901

Report On The Onyx Deposits Of Boiling Springs Cave, Ignatius J. Stauber, Fred R. Koeberlin

Bachelors Theses

No abstract provided.


Heat Of Formation Of Slags, George P. Woodhall, Walter Adams Luther Jan 1901

Heat Of Formation Of Slags, George P. Woodhall, Walter Adams Luther

Bachelors Theses

"First it was intended to find out the number of heat units per gram of slag that each individual slag would require. The color and blending of the slag were also to be noted. Causes and any derivations that may appear. If any fixed law was visible it was thought to bring it forth. The percentage of iron oxide and calcium oxide was to be varied and the silicon to bear the same proportion in every case"--Object of Thesis, page 1.


The Utilization Of The Gasconade River For Power Purposes, Charles A. Fach, Walbridge H. Powell Jan 1901

The Utilization Of The Gasconade River For Power Purposes, Charles A. Fach, Walbridge H. Powell

Bachelors Theses

No abstract provided.


The Sinking Of Piers On Red River Bridge On Kansas City Southern Ry., Albert Spengler Jan 1901

The Sinking Of Piers On Red River Bridge On Kansas City Southern Ry., Albert Spengler

Bachelors Theses

"In September, 1899, began the work on the construction of the substructure for the Red River Bridge for the Kansas City Southern Railway at Index, Texas, ten miles north of Texarkana, Texas. The new substructure was located about one hundred feet up stream from the old one, consequently it was not necessary to maintain traffic during construction. The object of the new bridge was to replace a much lighter one, which was too light for the increased weight of rolling stock of the railroad company. The substructure consists of seven piers, including a pivot pier, and two abutments. The seven ...


Railroad Location, George P. Woodhall Jan 1901

Railroad Location, George P. Woodhall

Bachelors Theses

No abstract provided.


Evolution Of The Dynamo, Ralph Nelson Soule Jan 1900

Evolution Of The Dynamo, Ralph Nelson Soule

Student and Lippitt Prize essays

This essay supplies an extensive history of electricity beginning in 600 BC to 1900, chronicling the evolution of the dynamo and its uses.


Thesis For Degree Of Bachelor Of Science In Mining Engineering [A Fire Clay Of Missouri], Howard Joshua Taylor Jan 1900

Thesis For Degree Of Bachelor Of Science In Mining Engineering [A Fire Clay Of Missouri], Howard Joshua Taylor

Bachelors Theses

"The clay examined is a fire clay of Missouri, varying in color from white, in pure specimens, to yellow or brown when stained with iron. It is opaque with a luster, varying from dull to pearly, an argillaceous odor and unctous feel"--page 1.


Notes Relative To The Ores Occurring At Mercur, Utah Together With A General Description Of The Metallurgical Practices Applied To Them At Delamar's Mercur Mines, Daniel Cowan Jackling Jan 1900

Notes Relative To The Ores Occurring At Mercur, Utah Together With A General Description Of The Metallurgical Practices Applied To Them At Delamar's Mercur Mines, Daniel Cowan Jackling

Professional Degree Theses

"The most notable increase in the gold production of Utah is due to the extensive operations of DeLaMar's Mercur mines in the Mercur district, which are at the present time producing more than two-thirds of the total tonnage of the entire camp. The nucleus of this great property consist of 143 acres, called the Golden Gate Group, by which name the property is still locally known, was purchased by Captain J. R. DeLaMar in 1895"--page 1.


A Comparison Of The Fire And Wet Methods For Lead, George Walter Dean Jan 1900

A Comparison Of The Fire And Wet Methods For Lead, George Walter Dean

Professional Degree Theses

No abstract provided.


Efficiency Of The Electric Lighting Plant Of The Rhode Island College Of Agriculture And Mechanic Arts, John Joseph Fry Jan 1900

Efficiency Of The Electric Lighting Plant Of The Rhode Island College Of Agriculture And Mechanic Arts, John Joseph Fry

Student and Lippitt Prize essays

A study of the functionality of the electric system at Rhode Island College (University of Rhode Island).


Geological Conditions And Genesis Of The Ore Deposits Of The Rush Creek District, Marion County, Arkansas, William Melvin Weigel Jan 1900

Geological Conditions And Genesis Of The Ore Deposits Of The Rush Creek District, Marion County, Arkansas, William Melvin Weigel

Bachelors Theses

No abstract provided.


Prospectus Of Engineering At The University Of Iowa Jan 1900

Prospectus Of Engineering At The University Of Iowa

The Transit

No abstract provided.


New Heat And Power Plant Of The State University Of Iowa, And Ventilation And Lighting Of The Hall Of Liberal Arts, B. J. Lambert Jan 1900

New Heat And Power Plant Of The State University Of Iowa, And Ventilation And Lighting Of The Hall Of Liberal Arts, B. J. Lambert

The Transit

No abstract provided.