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Articles 195001 - 195030 of 196048

Full-Text Articles in Engineering

1934-1935, 1935-1936 Bulletin, University Of Mississippi Jan 1935

1934-1935, 1935-1936 Bulletin, University Of Mississippi

Bulletins/Catalogs

Bulletin of the University of Mississippi

Announcements 1935-1936 and Catalogue 1934-1935,

Announcements 1936-1937 and Catalogue 1935-1936


The Rahway Valley Trunk Sewer And Its Relations To, And Effect Upon The City Of Rahway, Fred A. Hedeman Jun 1934

The Rahway Valley Trunk Sewer And Its Relations To, And Effect Upon The City Of Rahway, Fred A. Hedeman

Theses

This treatise is divided into three separate parts, each portraying a particular phase of the Rahway Valley improvement. Although not directly connected with the Joint Meeting, the fact that I served as Assistant City Engineer in Rahway during 1931 and 1932 naturally presented to me the opportunity of attending meetings and studying the project especially as it pertained to the City of Rahway.

Part one is a general review of the activities of the Rahway Valley Joint Meeting, both prior to and after the completion of the trunk sewer. The second portion reveals some of the intricate problems evolving in …


Investigations Concerning Bentonite Deposits Near Ramsay, Montana, Anton A. Anjel, John F. Sullivan Jun 1934

Investigations Concerning Bentonite Deposits Near Ramsay, Montana, Anton A. Anjel, John F. Sullivan

Bachelors Theses and Reports, 1928 - 1970

The purpose of Part I of this report is to determine the origin of the bentonite deposits, also to locate them with reference to section corners in the vicinity and to determine their extent.

The field work for this report was done in the fall of 1933 and during the spring of 1934. The roads, geologic contacts, and culture in general were mapped with the use of an open sight alidade and plane table. Distances were determined on the roads by the speedometer on the automo­bile; the detailed survey in the immediate vicinity of the deposits was done with use …


Supergene Enrichment Of Silver Ores With Special Reference To Those From Neihart, Montana., Thomas Walker Page Jun 1934

Supergene Enrichment Of Silver Ores With Special Reference To Those From Neihart, Montana., Thomas Walker Page

Bachelors Theses and Reports, 1928 - 1970

In the development of a technique it was necessary to learn the fundamentals of ore microscopy as applied to the various minerals of silver, which included the use of reflected polarized light, etch reactions, micro­chemical analysis, and sight recognition of mineral. In addition it was necessary to become familiar with the accepted criteria of sequence, replacement, and other textural phenomena.


Geology And Ore Deposits Of The Butte-Highland Gold Mine., Stockton Veazey Jr. Jun 1934

Geology And Ore Deposits Of The Butte-Highland Gold Mine., Stockton Veazey Jr.

Bachelors Theses and Reports, 1928 - 1970

The Butte-Highland mine is situated at the head of Basin Creek, in the Highland mining district, Silver Bow County, about 14 miles south of Butte. The tunnel portal and present surface plant are at an elevation of about 7350 feet above sea level, facing westward across the head of Basin Creek valley. The "ghost" mining town of Highland lies a mile to the east, near the forks of Fish Creek. Access to the mine is obtained at present from Beaudine's siding, 12 miles west. The property may also be reached, with difficulty, over poor roads from Limekiln hill, or from …


Preliminary Floatation Tests On The Beneficiation Of A Low-Grade Montana Bituminous Coal., William Packwood Given Jun 1934

Preliminary Floatation Tests On The Beneficiation Of A Low-Grade Montana Bituminous Coal., William Packwood Given

Bachelors Theses and Reports, 1928 - 1970

Coal is an aggregation of vegetal matter with varying small amounts of mineral and animal matter which have been so changed by the processes of sedimentation, decay and metamorphism that it has become a dense, dark, combustible substance. It occurs in beds varying in thickness from one foot or less to over 300 feet. The horizontal extent of a bed is sometimes continuous over an area as large as the State of Montana.


Auriferous Tertiary Gravels Near Rocker, In Silver Bow County, Montana, William C. Mclaughlin May 1934

Auriferous Tertiary Gravels Near Rocker, In Silver Bow County, Montana, William C. Mclaughlin

Bachelors Theses and Reports, 1928 - 1970

Between the villages of Rocker and Silver Bow, in south­western Montana, are found an interesting group of placers. Gold occurs in Tertiary gravel beds that are interstratified with beds of rhyolitic volcanic ash. With the aid of a plane table and open-sight alidade, a small portion of the lake-bed area near Rocker was mapped; all distances were paced, but numerous checks assure a fairly accurate map.


The Age-Hardening Of Duralumin, Allison Richard Dyer May 1934

The Age-Hardening Of Duralumin, Allison Richard Dyer

Bachelors Theses and Reports, 1928 - 1970

The development of wrought alloys of aluminum to which high strength and ductility can be imparted by heat treatment began with the work of Wilm and Claesser in Germany, 1905­-1911. During this time an alloy was developed which was later commercially produced in that country under the tradename of duralumin. The need for strong, light alloys for aircraft during the World War greatly hastened the development of duralumin.


Ammoniacal Sulphate Leach Of Ananconda Zinc Calcine Recovery Of The Zinc By Electrolysis., Authur Jewett Bovee Jr. May 1934

Ammoniacal Sulphate Leach Of Ananconda Zinc Calcine Recovery Of The Zinc By Electrolysis., Authur Jewett Bovee Jr.

Bachelors Theses and Reports, 1928 - 1970

Zinc is produced from ores by two general methods, distillation and electrolysis.

The general principles involved in the electrolytic zinc process of today were known as far back as 1880. Difficulties encountered in purifying the solution for electrolysis and lack of suitable mechanical apparatus were the main reasons that such a long time elapsed before the process was used to produce zinc in commercial quantities.


Precipitation Of Gold, Silver, And Copper From Cyanide Solutions On Activated Charcoal., Rayworth Francis Howe May 1934

Precipitation Of Gold, Silver, And Copper From Cyanide Solutions On Activated Charcoal., Rayworth Francis Howe

Bachelors Theses and Reports, 1928 - 1970

Charcoal has been known for a considerable length of time to have the property of recovering gold, silver, and copper from cyanide solutions of these metals. Quantita­tive data that may shed light on the mechanism of the re­moval of these metals is very limited except that char­coal in a form known as activated has the power to abstract gold and silver in considerable quantities from the above solutions.


The Effect Of Impurities On The Electrodeposition Of Zinc From Zinc Sulfate Solution Containing Antimony., Emmitt L. Klebba May 1934

The Effect Of Impurities On The Electrodeposition Of Zinc From Zinc Sulfate Solution Containing Antimony., Emmitt L. Klebba

Bachelors Theses and Reports, 1928 - 1970

It has been proven by research and years of experience, that before electrolytic zinc is possible, the electrolyte, as zinc sulfate solution must be prepared as pure as is economical. In other words, the ideal electrolyte must only be a solution of one metal - zinc. Every other metal and carbon must be excluded if good recovery and a firm deposit is to be obtained.


Alloys Of Lead And Tellurium, Ettore A. Peretti May 1934

Alloys Of Lead And Tellurium, Ettore A. Peretti

Bachelors Theses and Reports, 1928 - 1970

Prior to the last few years little practical use was made of the element tellurium, which is obtained from gold and silver tellurides and from the slimes of electro­lytic copper refineries. Lately, however, more study has been made of its properties when alloyed with other metals. It was the purpose of this thesis to study the effects of the addition of tellurium to lead, particularly in small amounts.


Memorandum To Chief Designing Engineer, Subject: Hydraulic Model Experimnets For The Design Of The Hyrum Spillway, J. B. Drisko, W. M. Borland May 1934

Memorandum To Chief Designing Engineer, Subject: Hydraulic Model Experimnets For The Design Of The Hyrum Spillway, J. B. Drisko, W. M. Borland

All U.S. Government Documents (Utah Regional Depository)

No abstract provided.


Conodonts From The Quadrant Shales Of Montana, Don R. Cubbage May 1934

Conodonts From The Quadrant Shales Of Montana, Don R. Cubbage

Bachelors Theses and Reports, 1928 - 1970

Conodonts have not been known to exist in Montana prior to the discovery of the specimens discussed and described in this paper. With this fact in mind, the author has endeavored to correlate the species of seven genera found in the Quadrant formation of Montana with similar micro-organisms from other North American areas.


Equations For The Ballistic Galvanometer, Robert H. O'Brien May 1934

Equations For The Ballistic Galvanometer, Robert H. O'Brien

Bachelors’ Theses

This thesis presents the development of the equations for the ballistic galvanometer. The subject was chosen because of its fascinating interest and because of the breadth of material included. The working out of the general equation required a comprehensive review of fundamentals in electricity and mechanics, swell as mathematics. The following features may be noted.


The Magma, 1934, Associated Students Of The Montana College Of Mineral Science And Technology Apr 1934

The Magma, 1934, Associated Students Of The Montana College Of Mineral Science And Technology

Magma 1909-1947

No abstract provided.


Roasting And Leaching Bulk Copper-Zinc Sulfide Concentrates With The Subsequent Recovery Of The Metals By Electrolysis, Carl Wesley Sawyer Feb 1934

Roasting And Leaching Bulk Copper-Zinc Sulfide Concentrates With The Subsequent Recovery Of The Metals By Electrolysis, Carl Wesley Sawyer

Bachelors Theses and Reports, 1928 - 1970

The aim of this research was to investigate the possibilities of roasting and leaching a bulk copper-zinc sulfide concentrate, and the subsequent separation of the metals from the leach solution by electro­lytic deposition.


Cost Of Engineering On Highway Projects, Walter John Shaffer Jan 1934

Cost Of Engineering On Highway Projects, Walter John Shaffer

Professional Degree Theses

"It is customary for highway departments to set up certain finances in addition to the contract price to take care of engineering and slight overruns in the contract quantities. Generally a certain percentage of the contract price is used. The Missouri Highway Commission follow the practice of setting up 10% of the contract price to finance the engineering, contingencies, and slight overruns. The term "engineering" as referred to in this paper consists of the salaries and incidental expenses of the project engineer and his assistants, project office rent, and transportation. It will be noted that the preliminary survey work, blue …


Foundations For Aquatic Oil Wells, Henry Emmett Gross Jan 1934

Foundations For Aquatic Oil Wells, Henry Emmett Gross

Professional Degree Theses

"During the past decade, man has found the courage to drill for oil at those forbidding locations which were made inaccessible by several feet of water. Some of the major fields of the world have been developed by this new manner of work, and others might have been added had the stage been set for the play. The most spectacular marine oil field development occurred along the Santa Barbara Coast of California from 1929 to 1931. It was the writer's good fortune to have been an assistant to Mr. Hans E. A. Gude, the field engineer of Pacific Western Oil …


Fuller's Earth In Southeast Missouri, Willard Farrar Jan 1934

Fuller's Earth In Southeast Missouri, Willard Farrar

Professional Degree Theses

"Recent work, (1933-34) in southeastern Missouri by the Missouri Geological Survey has shown that deposits of bleaching clay occur in the Porters Creek formation of Tertiary age. Various localities in Scott and Stoddard counties are described, in which favorable conditions for development exist. The method of testing the clay for bleaching power is treated briefly. Suggestions are offered in regard to prospecting, mining and milling"--Abstract, page 5.


Problems In The Cement Industry, William Alonzo Mccanless Jan 1934

Problems In The Cement Industry, William Alonzo Mccanless

Professional Degree Theses

"The major problem of the cement companies is the matter of marketing the product in sufficient quantities and at a price which will return a profit; however, there are some other problems that are of great interest to the engineers, i.e., the interest in the economics of cement based largely on its effect on the cost of contemplated structures"--page 1.


The Effect Of Preservatives On The Inflammability Of Wood, Merton Ira Signer Jan 1934

The Effect Of Preservatives On The Inflammability Of Wood, Merton Ira Signer

Professional Degree Theses

"It is the purpose of this thesis to present some data on the fire-resistance and inflammability of wood, treated with preservatives commonly used for mine timber"--Object of Thesis, page 3.


Test 225: Caterpiller Model R-2, Nebraska Tractor Test Lab Jan 1934

Test 225: Caterpiller Model R-2, Nebraska Tractor Test Lab

Nebraska Tractor Tests

All tractors tested at the Nebraska Tractor Test Laboratory were certified by their manufacturers as being stock model machines, conforming to specifications filed with the application for test. No special or high-test fuels were used except as recommended by the manufacturer as necessary.

All results within the official tractor test report were actually attained in tests and are without correction or allowances for friction, temperature, altitude, etc. The results were initially accomplished with the tractor in charge of skilled operators employed by the University.

Unless otherwise noted, each tractor was apparently in good condition at the end of the testing …


Efficient Management Of Highway Projects Under State Administration, From The Point Of View Of The Project Or Resident Engineer, Jean Paul Bryan Jan 1934

Efficient Management Of Highway Projects Under State Administration, From The Point Of View Of The Project Or Resident Engineer, Jean Paul Bryan

Professional Degree Theses

"Efficiency in any project is an admirable attribute. It is even more than admirable in an undertaking designed for the spending of the taxpayer's money in which the lack of this trait is so liable to be interpretated [sic] as graft. It is necessary. After some eight years of connection with highway construction, a familiarity with inefficiency in the management of high projects under state construction is sufficient excuse, we believe, to warrant a dissertation of the opportunities for the practice of efficiency by those in direct charge of these project - the Project Engineers or the Resident Engineers, as …


A Survey Of A Sanitary Sewer System With Findings And Recommendations, Warren Roy Gettler Jan 1934

A Survey Of A Sanitary Sewer System With Findings And Recommendations, Warren Roy Gettler

Professional Degree Theses

"The object of the survey was: 1. To determine existing evils in the present system and make recommendations for their correction. 2. To create new sewer districts of the unsewered portions of the city and submit tenative [sic] estimates of quantities and costs"--page 2.


The Study And Solution Of A Corrosion Problem Induced By Air Conditioning, Frederick William Hoertel Jan 1934

The Study And Solution Of A Corrosion Problem Induced By Air Conditioning, Frederick William Hoertel

Professional Degree Theses

"A recent personal investigation conducted by the writer has disclosed the extremely interesting fact that almost every large air conditioning plant in operation in St. Louis is experiencing serious difficulty in operation due to corrosion of some component part. With the ever increasing number of installations of large air conditioning plants the problem of corrosion prevention is becoming one of major economic importance"--Introduction, page 7.


La MineríA En El Peru (Sinopsis Para El Año De 1929), Felipe B. Oré Jan 1934

La MineríA En El Peru (Sinopsis Para El Año De 1929), Felipe B. Oré

Professional Degree Theses

No abstract provided.


A Comparison Of Florida, Georgia And G-1 Kaolin As The Chief Clay Ingredient For A Sanitary Ware Casting Body, George Armour Sellers Jan 1934

A Comparison Of Florida, Georgia And G-1 Kaolin As The Chief Clay Ingredient For A Sanitary Ware Casting Body, George Armour Sellers

Bachelors Theses

"The purpose of this investigation, originally, was to determine the suitability of substituting G-1 kaolin for Florida kaolin in a sanitary ware casting body. It was later extended to embrace a comparative study of Florida, Georgia and G-1 kaolin as the chief clay ingredient in a sanitary ware casting body"--Introduction, Purpose of the Investigation, page 1.


A New Theory Of The Spalling Of Fireclay Products With Relation To Thermal Expansion, Robert Legrande Stone Jan 1934

A New Theory Of The Spalling Of Fireclay Products With Relation To Thermal Expansion, Robert Legrande Stone

Bachelors Theses

"There is one factor that is responsible for much of the failure of refractories in furnaces and other metallurgical processes and boilers, namely spalling. Many times this action has been the cause of roofs to cave in, side walls to slump, and bungs to fail. Consequently it is a factor that is of utmost importance. The erosion and slag effects are also of greatest importance to refractory stability. Spalling, as referred to refractories, is defined as the breaking or crushing of the unit due to thermal, mechanical, or structural stresses, presenting newly exposed surfaces of the residual mass. Taking the …


The Effects Of Sodium, Barium And Calcium Chloride Upon The Physical Properties Of A Whiteware Body, William Newton Coffman Jan 1934

The Effects Of Sodium, Barium And Calcium Chloride Upon The Physical Properties Of A Whiteware Body, William Newton Coffman

Bachelors Theses

"The wide spread use of American kaolins and ball clays has been frowned upon by the majority of white-ware manufactures because the product resulting from their use in most cases has a color which is inferior to ware produced from English raw materials. This inferior color is generally attributed to the presence of a small amount of iron in the American clays. If some inexpensive chemical addition could be made which would eliminate the iron stain or in some way mask it, a wider market could be found in the white-ware industry for the domestic clays. One way to eliminate …