Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Engineering

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 68821 - 68850 of 68851

Full-Text Articles in Entire DC Network

Copper Matting Blast Furnace Run, John Vivian Stevens, Frank Bowman Powell, John Dozier Shanks Jan 1906

Copper Matting Blast Furnace Run, John Vivian Stevens, Frank Bowman Powell, John Dozier Shanks

Bachelors Theses

"The theory of the copper blast furnace run having been given us in the class room, we wishing to familiarize ourselves with the practical processes and the difficulties involved, selected it as the basis of an investigation of which the following is a correct report. The original ore was a high grade copper sulphide from the Ducktown, Tenn. district to which was added some heavy pyritic ore from various quarters. The latter was added to furnish the iron oxide necessary as a flux in the blast furnace and sulphur in sufficient amount to make the ore self roasting when charged …


Report And Preliminary Estimate For A Sewerage System For Lebanon, Mo., Ramon Rivera Jan 1906

Report And Preliminary Estimate For A Sewerage System For Lebanon, Mo., Ramon Rivera

Bachelors Theses

No abstract provided.


An Investigation Of The Chemical And Metallurgical Treatment Of A Cobalt And Nickel Ore, James Watts Caples Jan 1905

An Investigation Of The Chemical And Metallurgical Treatment Of A Cobalt And Nickel Ore, James Watts Caples

Bachelors Theses

"The ore, coming from a district located one hundred and fifteen miles from the nearest railroad point, in a mountainous country, barren of coal, and where freight rates were enormous; demanded a method of treatment not now in general use upon this class of ores, and one that would require as little freight haulage either way, as possible. With these object in view, the following work was done, after reading all the data obtainable upon the subject as found in the school library"--Introductory, page 1.


The Reaction Velocity Of Ethylene And Iodine, Herbert Arno Roesler Jan 1905

The Reaction Velocity Of Ethylene And Iodine, Herbert Arno Roesler

Professional Degree Theses

"The constituents of coal or enriched water gas which give it value as a light producer are known collectively as "illuminants". They consist essentially of ethylene and propylene and in the analysis are determined by means of fuming sulphuric acid. This method of determination is very unsatisfactory as it is impossible to ascertain the relative percentages of the two gases, only the total being found. A series of experiments were made, for the purpose of finding a reagent that could be used for separating the members of the illuminating group and while thus engaged, a solution of iodine in potassium …


Copper Mining At Cananea, Sonora, Mexico, Albert Hill Fay Jan 1905

Copper Mining At Cananea, Sonora, Mexico, Albert Hill Fay

Professional Degree Theses

"Fifty miles southwest of Bisbee, Arizona, is one of the largest copper mines in the world, - a mine which six years ago was in the throes of the prospecting, developing, and litigation periods, and now turning out over five million pounds of copper bullion per month. This property is located at Cananea, District of Arizpe, sonora, Mexico, and is owned and controlled by the cananea Consolidated Copper Co. S.A. It is situated upon the northeast slope of a short range of mountains from which the town of Cananea derives its name. The port of entry for this part of …


Modern Methods Of Book Composition, Theodore Low De Vinne Jan 1904

Modern Methods Of Book Composition, Theodore Low De Vinne

Electronic Texts in American Studies

A TREATISE ON TYPE-SETTING BY HAND AND BY MACHINE AND ON THE PROPER ARRANGEMENT AND IMPOSITION OF PAGES

I EQUIPMENT. Types ... Stands .•. Cases ••. Case-racks.

II EQUIPMENT. Galleys and galley-racks ... Compositors' implements Brass rules and cases for labor-saving rule and leads … Dashes and braces ... Leads ... Furniture of wood and ofmeiaI .•. Furniture-racks ••. Quotations and electrotype guards.

III COMPOSITION. Time-work and piece-work •.. Customary routine on book-work ... Justi1lcation ... Spacing and leading Distribution ... Composition by hand and machine

IV COMPOSITION OF BOOKS. Title-page ... Preface matter ... Chapter headings and synopsis ... …


Advertising Brochure: 1903 Mccormick Farm Equipment, Nebraska Tractor Test Lab Jan 1903

Advertising Brochure: 1903 Mccormick Farm Equipment, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


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 …


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 …


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.


Electrolysis Mitigation Of The Underground Telephone Cable Plant Of The City Of Green Bay, Wisconsin, William J. O'Connor Jan 1900

Electrolysis Mitigation Of The Underground Telephone Cable Plant Of The City Of Green Bay, Wisconsin, William J. O'Connor

Bachelors’ Theses

Prior to the fall of 1915, the Wisconsin public Service Company of Green Bay operated an electric street railway with an uninsulated negative rail return in the city of Green Bay, the track network with its relation to the underground cable sheaths of the Wisconsin Telephone Company as shown on the General Condition Map.


The Design Of An Isolated Storage Battery Plant, Ottomar Henry Henschel, Joseph Anthony Walter Jan 1900

The Design Of An Isolated Storage Battery Plant, Ottomar Henry Henschel, Joseph Anthony Walter

Bachelors’ Theses

This thesis is respectfully submitted to the faculty of: the College of Applied Science and Engineering of Marquette University of Milwaukee Wisconsin by Ottomar Henry Henschel for the Degree of Bachelor of Science in Electrical Engineering, and Joseph Anthony Walter for the Degree of Bachelor of Science in Electrical Engineering.

With the object of divorcing the electrical equipment from the lines or The Milwaukee Electric Railway & Light Company, and thereby hoping to materially cut down the operating expenses of the University plant, this storage battery plant has been designed.


Assay Of Copper Matte For Gold And Silver, Walter E. Soest Jan 1899

Assay Of Copper Matte For Gold And Silver, Walter E. Soest

Bachelors Theses

"Ores containing copper, and especially copper matte, have always been very annoying in assaying for the precious metals. In assaying copper matte, and ores containing much copper, by the usual method of scorification, the losses of silver an gold are considerable, owing to the fact that in order to obtain lead buttons, which are soft and free from copper, repeated scorifications are necessary, and moreover it is impossible to obtain lead buttons which are entirely free from copper"--page 1.


The Strength Of Cement Under Different Conditions, Francis Joseph Tayman Jan 1899

The Strength Of Cement Under Different Conditions, Francis Joseph Tayman

Bachelors Theses

"Derivation of some Empirical Formulae, showing relation between breaking strength, and various functions which enter into Cement testing. We find a great deal of experimental work done in Cement testing, also some curves plotted, but there are but few equations fitted to these curves, this, then, is the object of the present work. In this work a great many interesting points have been made manifest, most of them are of no practical value but merely of interest in themselves. The work has been on several of the most important ones, to be given subsequently. On these and a few others …


Some Quantitative Experiments On The Electro-Deposition Of Copper, Jerrold Roscoe Underwood Jan 1899

Some Quantitative Experiments On The Electro-Deposition Of Copper, Jerrold Roscoe Underwood

Bachelors Theses

"The object of these experiments was to determine in a quantitative way the effect or effects, if any, of these various metals on the purity of the copper precipitated electrolytically. The material worked with was from a copper anode from ( ) carrying a silver, a trace of gold, arsenic and antimony as well as other metalic sic impurities"--Object, page 1.


The Electrolysis Of The Water Of A Copper Sulphate Solution, Ralph Barker Jan 1898

The Electrolysis Of The Water Of A Copper Sulphate Solution, Ralph Barker

Bachelors Theses

"The idea prevails generally, that when an electric current is passed through a copper sulphate solution, the water will be electrolysed sic when the difference of potential between the electrodes reaches about one and one-half volts. The object of the experiments detailed below was to determine whether or not the density of the solution has any effect on the electrolysis of the water, and if any such existed, to find out if there was any relation between them"--page 1.


Derivation Of Some Empirical Formulae, Showing Relation Between Breaking Strength And Various Functions Which Enter Into Cement Testing, Arthur D. Terrell Jan 1898

Derivation Of Some Empirical Formulae, Showing Relation Between Breaking Strength And Various Functions Which Enter Into Cement Testing, Arthur D. Terrell

Bachelors Theses

"Although we find a great many results of experimental work in cement testing, and some curves plotted, there seems to have been very little attempt made toward fitting equations to these curves. This then leaves an opening for original investigation. During my experiments quite a variety of interesting points have been made manifest. Most of them are of no practical benefit, but merely of interest in themselves. My work has been on a few of the most important ones, which will be given subsequently"--page 1.


Design Of A 240' Through Span Railroad Bridge: Including Analysis Of Stresses Due To Concentrated Wheel Loads, Design Of Individual Members, And Drawings Showing Stresses, And Details, L. C. Torrence Jan 1897

Design Of A 240' Through Span Railroad Bridge: Including Analysis Of Stresses Due To Concentrated Wheel Loads, Design Of Individual Members, And Drawings Showing Stresses, And Details, L. C. Torrence

Bachelors Theses

"The Span length will be 240' center to center of end pins. Truss to be square ended, Track straight. Live load to consist of two engines, concentrating 289 tons over a length of 104' followed by a uniform train of 2.1 tons per linear foot"--Page 1.


Extraction Of Silver By The Wet Way, Justo Garcia Martinez Jan 1886

Extraction Of Silver By The Wet Way, Justo Garcia Martinez

Bachelors Theses

"The great variety of ores in which silver occurs, usually makes it necessary to employ complicated processes for its extraction.

The extraction of the precious metal admits of two general processes viz. The Dry, and Wet Way and as I have chosen the latter for the subject of my thesis, we will be dispensed with the Dry Way, and will try and give all the processes and forms in which silver is extracted by the Wet Way"--page 1.


A Thesis On The Improvement Of Western Waterways, Fremont Wilson Jan 1885

A Thesis On The Improvement Of Western Waterways, Fremont Wilson

Bachelors Theses

"There is no subject that falls with the province of the engineer's art, that presents greater difficulties and more uncertain issues than the improvement of rivers"--page 2.


Leaching Processes For Silver Extraction, Phil Van Frank Jan 1885

Leaching Processes For Silver Extraction, Phil Van Frank

Professional Degree Theses

"The leaching process for the extraction of silver are comparatively modern, being introduced in 1849. They belong to a period in which the metallurgist has brought to his aid knowledge derived from chemical research. Under favorable circumstances leaching procedures process many advantages over amalgamation or smelting. For successful use the ores treated for silver must not contain large per cents of lead, zinc, antimony or arsenic. The objections to these bodies will be named later on. When silver is extracted by smelting or amalgamation, a costly plant is necessary, which requires constant repair and in time wear out and be …


Stresses In Suspension Bridges, William M. Claypool Jan 1884

Stresses In Suspension Bridges, William M. Claypool

Professional Degree Theses

"A suspension bridge is one in which the roadway over the stream or span to be crossed is suspended from chains or wire ropes.

A suspension bridge consists of the towers or piers over which the main chains or cables pass; the anchorages to which the ends of the cables are attached; the main chains or cables from which the roadway is suspended; the suspending rods or chains which connect the roadway with the cable and the roadway.

The sub-structure consists of the foundations, piers &c. The super-structure consists of the roadway and the chains or cables"--page 1.


Ua96/1 Eleventh Annual Catalogue Of The Southern Normal School & Business College, Southern Normal School Jan 1884

Ua96/1 Eleventh Annual Catalogue Of The Southern Normal School & Business College, Southern Normal School

WKU Administration Documents

Catalog outlining the history and mission of the Southern Normal School & Business College along with the courses offered. The catalog also includes a list of teachers and alumni.


Patenting Mining Claims, William R. Painter Jan 1882

Patenting Mining Claims, William R. Painter

Professional Degree Theses

"In patenting mining claims there are two sets of papers used"--page 3.


Location, Construction, And Drainage Of Common Roads, Edward B. Summers Dec 1880

Location, Construction, And Drainage Of Common Roads, Edward B. Summers

Bachelors Theses

To write upon, and do justice to the subject of common roads, it is necessary that one should be familiar with every variety of them. The roads in some of the advanced and highly civilized communities are of a most admirable character; while in the new and thinly populated countries, they are found deficient in nearly all the attributes of good roads. Only a few kinds that may be in some of the most populous districts will be here designated.


Inter-Oceanic Transit, Loren X. Smith Dec 1880

Inter-Oceanic Transit, Loren X. Smith

Professional Degree Theses

"The feasibility of constructing a canal communication between the Atlantic and Pacific Oceans and crossing the American Isthmus has been discussed and written on since the time of Columbus but the subject has attained its present popularity only within the last few years. For several years past the press has almost constantly kept the project before the public and the indications now are that in the close of the 19th century some one of the many schemes that has been suggested will be in active operation. There has been various routes suggested for canals with and without locks. This paper …


Ore Of Certain Composition, Walter W. Wishon Dec 1880

Ore Of Certain Composition, Walter W. Wishon

Professional Degree Theses

The metallurgic treatment of an ore having the following composition:
SiO2 20.10
PbS 9.90
ZnS 40.25
CuS 19.75
Sb2S3 4.95
Ag2S 3.10 or 787.48 oz per ton
Undeter. 1.95
100.00

To obtain the Silver by the Chlorination and Amalgamation process. The discussion of the subject consists of the following sections:
1st Preparation of the Ore
2nd Roasting
3rd Amalgamation
4th Retorting
5th Fusion in the Bars


The Production Of Spelter From Zinc Blende, Lee R. Grabill Jan 1878

The Production Of Spelter From Zinc Blende, Lee R. Grabill

Bachelors Theses

"The problem which has been assigned to me for discussion as examination in metallurgy, is the treatment of a zinc blende from Sevier County, Arkansas; using the common Missouri or Illinois coal for fuel and the Spadra coal of Johnson County, Arkansas, as a reducing agent in the distillation process; and as clay for the manufacture of retorts, etc. that from the works at Cheltenham, Missouri, furnished by Parker, Russell & Company. Analysis of the materials used are to be given with details of processes and drawings & descriptions of machinery used; also approximate cost of furnaces, and approximate cost …


Illustration Of The Concentration And Flintshire Furnace Treatment Of Lead Ores At The Desloge Mines, Missouri, A. H. Ohmann-Dumesnil Dec 1876

Illustration Of The Concentration And Flintshire Furnace Treatment Of Lead Ores At The Desloge Mines, Missouri, A. H. Ohmann-Dumesnil

Professional Degree Theses

"The Desloge Mines, the subject of the present thesis, are situated in Township 37 North and Range 4 East, St. Francois Co. Mo. and are directly north of the St. Joe mines. They are 10 miles distant, in a north-easterly direction, from Cadet, a station on the St. Louis, Iron Mountain and Southern Rail-Road 57 miles from St. Louis. hough Cadet is insignificant in point of population, still as a shipping point, it ranks high among those in South East Missouri; since it is the depôt and entrepôt for the Desloge, St. Joe and Old Mines....

The subject of lead …