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Articles 76981 - 77010 of 77157

Full-Text Articles in Engineering

Process Of Treating Slimes In Ore Reduction, Gustavus A. Duncan Jan 1907

Process Of Treating Slimes In Ore Reduction, Gustavus A. Duncan

Professional Degree Theses

No abstract provided.

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The Composition And Analysis Of Zinc-Lead Pigment, Evans Walker Buskett Jan 1907

The Composition And Analysis Of Zinc-Lead Pigment, Evans Walker Buskett

Professional Degree Theses

"Zinc is present as oxide and sulphate. There are also probably zinc and lead sulphites. It has been suggested that there may be carbonates in this pigment, but this is not probable as the high temperature of the furnace, the complete combustion of the fuel to CO2 and the large excess of SO2 gas in the bagroom would tend to prevent their formation. There is also a chemical combination between the zinc oxide and the lead oxide which is probably a zinc plumbate. Some light can be thrown on the subject by the following experiments:"--page 1.

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Design, Specifications And Cost Estimate Of Two Hundred Ton Stamp Mill And Cyanide Plant For Treatment Of Gold Ore, John Payne Sebree, William Peter Hatch Jan 1907

Design, Specifications And Cost Estimate Of Two Hundred Ton Stamp Mill And Cyanide Plant For Treatment Of Gold Ore, John Payne Sebree, William Peter Hatch

Bachelors Theses

"The object of this thesis is the designing and a mill, writing specifications for same, and furnishing complete cost of entire plant to treat 200 tons of gold ore"--page ii.

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Graphical Representation Of Compressed Air Formulae, John Thomas Vitt, Paul Andrew Philippi Jan 1907

Graphical Representation Of Compressed Air Formulae, John Thomas Vitt, Paul Andrew Philippi

Bachelors Theses

"Air during compression and expansion obeys the same laws as do other gases and these laws have been mathematically stated by purely rational formulae. Most of these formulae are logarithmic and their use involves a considerable amount of work. The object of this thesis is to present these formulae in such form that problems involving their use may be readily and easily solved. It was decided to present them graphically and the accompanying curves are the results of our labors"--page 1.

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Efficiency Of Mill Practice In The Joplin District, Ira Lee Wright Jan 1907

Efficiency Of Mill Practice In The Joplin District, Ira Lee Wright

Bachelors Theses

"Milling in the Joplin District is, compared with the practice in other zinc fields, seemingly very crude. To one unacquainted with the peculiar conditions of this district, the amount of ore which goes into the tailing pile seems unnecessarily high. There are several things which account for the low saving made"--page 1.

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Meridian-Projecting Instruments And Methods, Albert Babbitt Bartlett Jan 1907

Meridian-Projecting Instruments And Methods, Albert Babbitt Bartlett

Bachelors Theses

"The writer's attention was called to the necessity of knowing the accuracy attainable in surveying which must depend upon the Meridian, and therefore be subject to the accuracy of it, in seeking information by which to decide what would be the most desirable transit to use in the West, particularly for United States Deputy Mineral Surveying. Descriptions of the manipulation, adjustments, and the cost, etc., of the various appliances are plentiful in the text-books on surveying and in the various catalogues; but there was no very definite information in regard to the actual probable and average accuracy, especially in the …

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Lime Roasting Of A Galena Concentrate With Subsequent Smelting In The Blast Furnace, Aubrey P. Fellows, Tsik Chan Tseung, James Carter Long, Edwin Richard Wash Jan 1907

Lime Roasting Of A Galena Concentrate With Subsequent Smelting In The Blast Furnace, Aubrey P. Fellows, Tsik Chan Tseung, James Carter Long, Edwin Richard Wash

Bachelors Theses

"Having on hand a quantity of Galena concentrates, which we wished to treat in the blastfurnace accompanied by a usual previous roast, but having no reverberatory furnace, we decided to experiment upon the ore with lime roasting as invented by Savelsbury, to see if it was practicable"--page 1.

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Treatment Of A Low Grade Gold Ore, Paul Richardson Cook, Sakuhei Sunada, Arnold George Baker Jan 1907

Treatment Of A Low Grade Gold Ore, Paul Richardson Cook, Sakuhei Sunada, Arnold George Baker

Bachelors Theses

No abstract provided.

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Plans, Estimates And Specifications For A Sewer System For The City Of Plattsburg, Eldon E. Cook, William C. Perkins Jan 1907

Plans, Estimates And Specifications For A Sewer System For The City Of Plattsburg, Eldon E. Cook, William C. Perkins

Bachelors Theses

"Plattsburg, Missouri is a thriving city of about two thousand population. It is situated in the heart of the most fertile Missouri land. Three railroads - Atchison, Topeka and Santa Fe.; Chicago, Rock Island and Pacific; Quincy, Omaha and Kansas City - give easy access to St. Joseph, thirty miles distant, Leavenworth forty miles, or Kansas City, forty-one miles; respectively. The city is growing steadily and will in a few years be of such size that a sewage system will be necessary. We therefore submit the following plans, specifications and estimates. Since the city could not afford both Stone Sewers …

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Design Of A Lead Blast Furnace, Walter Irving Phillips, Andrew Jackson Seltzer Jan 1907

Design Of A Lead Blast Furnace, Walter Irving Phillips, Andrew Jackson Seltzer

Bachelors Theses

"In order to get the approximate size of the Furnace we made the following assumptions, being guided as far as possible by the practice of the Globe Smelting Works at Denver, Colorado whenever that could be ascertained"--page 1.

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The Design Of Main Street Reinforced Concrete Arch Over Frisco R. R., Hyman Zirulick Jan 1907

The Design Of Main Street Reinforced Concrete Arch Over Frisco R. R., Hyman Zirulick

Bachelors Theses

"Owing to the cheapness and durability of reinforced concrete, the tendency of the present time in Engineering practice is to build new and replace old structures with reinforced concrete. Therefore, in taking up a subject for a thesis, I have selected, The Investigation of the Design of a Reinforced concrete Arch," or, as I named it, "Main Street Reinforced concrete Arch over Frisco Railroad"--Introduction, page 1.

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Chemical And Physical Analysis Of Steel And Iron, John T. E. Ericson Jan 1907

Chemical And Physical Analysis Of Steel And Iron, John T. E. Ericson

Bachelors Theses

No abstract provided.

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An Investigation Of The Treatment Of A Silver Ore By Lixiviation With Sodium And Cuprous Thiosulphate Solutions, Elston Everett Jones Jan 1907

An Investigation Of The Treatment Of A Silver Ore By Lixiviation With Sodium And Cuprous Thiosulphate Solutions, Elston Everett Jones

Bachelors Theses

"The object of this investigation is to find whether the ore can be treated with profit by lixiviation and to find the best conditions for maximum extraction"--page 1.

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Alternating Currents, Arthur W. Webb, Evan John Macilraith Jan 1907

Alternating Currents, Arthur W. Webb, Evan John Macilraith

Undergraduate Theses and Senior Projects

No abstract provided.

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Design Of A Hydro-Electric Lighting Plant, John Emil Inberg Jan 1907

Design Of A Hydro-Electric Lighting Plant, John Emil Inberg

Undergraduate Theses and Senior Projects

No abstract provided.

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Plans And Estimates For The Disposal Of Sewage And Storm Water For The City Of Rolla, Mo., Tracy Irwin Phelps, Robert Arthur Barton Jan 1906

Plans And Estimates For The Disposal Of Sewage And Storm Water For The City Of Rolla, Mo., Tracy Irwin Phelps, Robert Arthur Barton

Bachelors Theses

"The City of Rolla is the county seat of Phelps County, situated 111 miles southwest of St. Louis, on the St. Louis and San Francisco R.R. This thriving city of 2000 inhabitants already owns the electric lighting system, and has engineers working upon plans for a deep well water supply system. Since the sanitary conditions are not the best and a water supply is to be installed, we submit these plans and estimates for a "Disposal of Sewage and Storm Water."--page iii.

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Treatment Of A Mexican Copper Ore, Harold Thomas Mapes, Robert Hardy Bedford Jan 1906

Treatment Of A Mexican Copper Ore, Harold Thomas Mapes, Robert Hardy Bedford

Bachelors Theses

"The ore to be treated consists of a sulphide carrying some metallic copper"--page 1.

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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 …

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The Commercial Preparation Of Baryta, Ray Fleming Rucker, Damon Duffield Dunkin Jan 1906

The Commercial Preparation Of Baryta, Ray Fleming Rucker, Damon Duffield Dunkin

Bachelors Theses

"The object of this investigation was to ascertain in a general way the methods employed at the present time in mining, milling and leaching baryta, and the commercial uses to which the product is put, with the idea in view of improving these methods and encouraging a more extended use of the product if possible"--page 1.

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A Special Investigation In Concrete Steel And Application To Square Set System, Horace Alonzo Hand Jan 1906

A Special Investigation In Concrete Steel And Application To Square Set System, Horace Alonzo Hand

Bachelors Theses

"This investigation has been prompted, first, by a desire to become more familiar with concrete-steel in its general application to engineering construction, second, by the inevitable necessity of a substitute in the near future for lumber in mining construction. In first case, a thorough review has been made of principles and practice in the construction of concrete-steel structures in general, including bridges, water towers, reservoirs, viaducts, etc., as found in current engineering journals, which is the most up-to-date source of information available. Special attention has been given to best practice in reinforcing concrete to resist forces of bending, shearing, torsion …

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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.

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Furnace Calculations, John Mcmillen Brooks Jan 1906

Furnace Calculations, John Mcmillen Brooks

Bachelors Theses

"A furnace that will smelt a given amount of material per twenty-four hours, to dimension parts, and finally draw the complete plans. Copper Matting Furnace"--Problem, page 1.

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Report On Polaris Mine, Stanley Ralston Moore Jan 1906

Report On Polaris Mine, Stanley Ralston Moore

Bachelors Theses

No abstract provided.

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Treatment Of Joplin Tailings, Preston King Horner Jan 1906

Treatment Of Joplin Tailings, Preston King Horner

Bachelors Theses

"In the Joplin region are enormous piles of tailings, that for waste material, run very high in blende. This is due mainly to the temporary character of the mills which are built with more regard to low first cost than to receiving a high percentage of extraction. As a result we have some piles of tailings containing from 200,000 to 300,000 tons of materials that will average from about 2 to 3% zinc, and all crushed so as to pass through about #2 mesh"--Page 1.

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Methods Of Gas Engine Design, Mark L. Lovell Jan 1906

Methods Of Gas Engine Design, Mark L. Lovell

Undergraduate Theses and Senior Projects

No abstract provided.

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Plan For Plant For Manufacturing L.H. 26x48 R.M.T. Corliss Engine, William H. Robinson Jun 1905

Plan For Plant For Manufacturing L.H. 26x48 R.M.T. Corliss Engine, William H. Robinson

Undergraduate Theses and Senior Projects

No abstract provided.

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Utilization Of The Water Of The Verde River For Power Purposes, Raphael Curier Alexander Jan 1905

Utilization Of The Water Of The Verde River For Power Purposes, Raphael Curier Alexander

Professional Degree Theses

"It is proposed to utilize the water of the Verde River for power purposes by constructing a power plant on the said river, and transforming the potential energy of the falling water into Electrical Energy, and the Electrical Energy transmitted over transmission lines to the various cities and mining camps in this vicinity where power is being used"--Proposition, page 1.

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The Manufacture Of Coal Gas In St. Louis, Albert Dyke Wilson Jan 1905

The Manufacture Of Coal Gas In St. Louis, Albert Dyke Wilson

Professional Degree Theses

"Coal gas is made by heating Bituminous Coal in closed fire-clay retorts, for four or five hours, at a bright red heat. An exhauster pulls the gas from the retort as fast as it is generated in order to prevent, as much as possible, the breaking up of the hydrocarbons into carbon and hydrogen by the hot molls of the retort"--page 2.

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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 …

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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 …

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