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The Geology And Mineralogy Of The Independence Mining District, Alan Kuhlman May 1940

The Geology And Mineralogy Of The Independence Mining District, Alan Kuhlman

Bachelors Theses and Reports, 1928 - 1970

From 1888 until 1893 the district was a booming mining camp. Seven stamp mills were running and ore was be­ing mined from the Independence, King Solomon, Poorman, Golden, Hidden Treasure and Crown claims. The town of Independence, which was on the Boulder River at the fork of Basin Creek, boasted a population of 400 people.


A Study Of Metallic Eutectics, Robert P. Corbett May 1940

A Study Of Metallic Eutectics, Robert P. Corbett

Bachelors Theses and Reports, 1928 - 1970

All of the metals have definite melting points. When a metal is heated above the melting point, it exists as a liquid. Now if the melt is allowed to cool, it will solidify when a temperature corresponding to the melting point is reached.

However, if one metal is added to another metal, both of which are mutually soluble in the liquid state, a certain effect can be noted. The melt will not solid­ify when the melting point of the pure metal is reached, but will freeze at a lower temperature.


Areal Geology Of The Post-Paleozoic Surface Of The Northwest Plains, William M. Broderick May 1940

Areal Geology Of The Post-Paleozoic Surface Of The Northwest Plains, William M. Broderick

Bachelors Theses and Reports, 1928 - 1970

Probably most of the area included in this report has been ex­amined to some extent by oil geologists, and most, if not all, of the important domes have been discovered and surveyed thoroughly. In parts of the area, the bedrock is covered by glacial drift or alluvium materi­al, but it is reasonable to believe that no new domal structure will be found. This means that surface examination alone will be insufficient in locating new oil fields, so future prospecting will be dependent, to a great extent, on studies of sub-surface stratigraphy.


A Study Of The Concentration Of A Copper-Zinc Ore., Kenneth L. M. Dodd May 1940

A Study Of The Concentration Of A Copper-Zinc Ore., Kenneth L. M. Dodd

Bachelors Theses and Reports, 1928 - 1970

The ore under investigation in this thesis is a copper-zinc ore which came from the state of New Mexico. The exact location is unobtainable. The purpose of the investigation was to determine the most effective means of concentration of the valuable min­erals present in the ore.


The Testing And Concentration Of A Low Grade Copper-Nickel Ore., Laurence T. Eck May 1940

The Testing And Concentration Of A Low Grade Copper-Nickel Ore., Laurence T. Eck

Bachelors Theses and Reports, 1928 - 1970

The purpose of this thesis is to investigate the possi­bility of concentrating a low grade copper-nickel ore, to determine the most effective method of concentration, and to attempt to draw some conclusions to determine whether or not the concentrates produced would be of sufficient high grade to make the recovery of nickel and copper a profit­able enterprise.


Geology And Ore Deposits Of The Jardine Mining District, Park County, Montana, Douglas M. Dowell May 1940

Geology And Ore Deposits Of The Jardine Mining District, Park County, Montana, Douglas M. Dowell

Bachelors Theses and Reports, 1928 - 1970

The Jardine Mining district is in the extreme southern part of Park County, Montana. Jardine is five and one-half miles northeast of Gardiner, Montana, the northern entrance to Yellowstone National Park.


The Electrolytic Recovery Of Copper And Zinc From Scrap Brass With Special Reference To Lead-Bearing Brass., Frederick A. Hames May 1940

The Electrolytic Recovery Of Copper And Zinc From Scrap Brass With Special Reference To Lead-Bearing Brass., Frederick A. Hames

Bachelors Theses and Reports, 1928 - 1970

Several methods have been investigated, with some success, for treating scrap brass to recover copper and zinc, either as pure metals or as salts of the metals. One of the more promising of these methods is electrolysis in sulfate solution for the recovery of pure copper and zinc.


Electrolysis Of Molten Mixtures Of Galena And Lead Chloride., Donald Q. Cole May 1940

Electrolysis Of Molten Mixtures Of Galena And Lead Chloride., Donald Q. Cole

Bachelors Theses and Reports, 1928 - 1970

Electrolysis of molten mixtures of lead chloride and galena was carried out under various conditions of temperature, time, composition, and current densities; without a diaphram, and with various diaphrams. Continuous runs, with necessary additions of lead sulfide and lead chloride to maintain a melt of the proper composition, were attempted on a small scale.


A Study Of The Effect Of Third Metals On The Wetting Properties Of Solders, William L. O'Brien May 1940

A Study Of The Effect Of Third Metals On The Wetting Properties Of Solders, William L. O'Brien

Bachelors Theses and Reports, 1928 - 1970

Solders are not new alloys, since they were known in late Roman times when they were mentioned by Pliny. These solders differed very little from our modern ones. Tertiarium, consisting of one part of tin to two parts of lead, is known today as plumbers solder; and argentarium, consisting of equal parts of lend and tin, is still extensively used for many purposes.


Geology And Ore Deposits Of The Clinton Mining District, James F. Piquette May 1940

Geology And Ore Deposits Of The Clinton Mining District, James F. Piquette

Bachelors Theses and Reports, 1928 - 1970

This report includes the results of geological investigation of the Clinton Mining District and the Hidden Treasure Mine.The Clinton Mining District is an unorganized mining dis­trict situated in the Garnet Range two and one-half miles northeast of the town of Clinton, Montana, which is on the Northern Pacific Railway and the Chicago, Milwaukee, St. Paul, and Pacific Railroad seventeen miles east of the city of Missoula.

The district is in the same range of mountains as the Gar­net Mining District and the drainage from the district covered is to the south into the Hell Gate or Clarks Fork of …


The Testing And Concentration Of A Tungsten Ore, Turdat S. Simone May 1940

The Testing And Concentration Of A Tungsten Ore, Turdat S. Simone

Bachelors Theses and Reports, 1928 - 1970

At the present time the principal uses for tungsten lie in the manufacture of ferro-alloys and tungsten steels. Due to it’s hardening and strengthening characteristics it holds an important position among steel hardening metals. The great rush for it’s production during the World War years clearly points to it’s importance in the manufacture of armament.


Report On The Ermont Mine Sec. 35, T. 6 S., R. 11 W., Beaverhead County, Montana, Chester Harkins Steele May 1940

Report On The Ermont Mine Sec. 35, T. 6 S., R. 11 W., Beaverhead County, Montana, Chester Harkins Steele

Bachelors Theses and Reports, 1928 - 1970

An examination of the Ermont Mine was requested by the owners, Messrs. J. R. Bowles and R. B. Caswell, to determine the amount and grade of ore developed, the advisability of constructing a mill at the present time, and to recommend future development work.


The Age-Hardening Of Magnesium With Aluminum And Zinc, K. Deatley Loughridge May 1940

The Age-Hardening Of Magnesium With Aluminum And Zinc, K. Deatley Loughridge

Bachelors Theses and Reports, 1928 - 1970

Magnesium is one of the most active elements and forms oxides, nitrides, and carbides, but not hydrides. Due to its activity, low melting point, low strength when unalloyed, and the difficulty with which it is worked, magnesium has not been and is not at present well developed.


A Study Of Eutectics Of Certain Fused Salts, William D. Trethewey May 1940

A Study Of Eutectics Of Certain Fused Salts, William D. Trethewey

Bachelors Theses and Reports, 1928 - 1970

Considerable work has been done investigating the freezing point curves of fused salts, but little has been written describing the appearance of their eutectic structures when observed under the microscope.


American Iron And Steel Institute Tests On Cold Formed Steel Studs, American Iron And Steel Institute May 1940

American Iron And Steel Institute Tests On Cold Formed Steel Studs, American Iron And Steel Institute

CCFSS Library (1939 - present)

I. SCOPE This report presents results of buckling tests on: Type A studs with free-ends condition, Type B studs with "minimum restraint" or "actual" end condition.


Engineering In Traffic Safety In Utah, Donald T. Hunter May 1940

Engineering In Traffic Safety In Utah, Donald T. Hunter

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Traffic safety involves accident-free movement of physical entities. It includes all means of transportation and is a function of mobility, an important variable affecting directly the mortality rate and increase of accidents. All transportation groups have coincidentally with or without increase of mobility been attempting to reduce accidents. Those notably succeeding are the shipping, railroad, and airline interests. The operating motor vehicle and pedestrian groups have failed conspicuously.

The early means of attaining a better degree of traffic safety in the motor vehicle and pedestrian groups were based on opinions, and though rational, were incomplete because of the dynamic and …


Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering Apr 1940

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT 1. A stress investigation has been made at the load points of beam E-18-14-88a for spans of 6 and 12 ft. with center load and for spans of 12 ft. with quarter point loading. 2. A similar investigation has been made on beam E-18-12-816a.


Tests On Cold Formed Steel Studs American Iron And Steel Institute, American Iron And Steel Institute Apr 1940

Tests On Cold Formed Steel Studs American Iron And Steel Institute, American Iron And Steel Institute

CCFSS Library (1939 - present)

I. PURPOSE OF THE INVESTIGATION The purpose of the investigation is to provide technical information for the development of standard specifications for steel stud wall construction, suitable for inclusion in building codes.


Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering Mar 1940

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT 1. A.stress investigation has been made on beam E-18-12-816 b at the load points with 6 and 12 ft. span and center load and with 12 ft. span and quarter point load. 2. The results of these tests seem to show that, after the completion of similar tests on two more beams of the present shipment enough data will have been gathered to answer the question of stress distribution. It was therefore thought advisable to carry out a more complete investigation on this beam. For this purpose the stress distribution at five additional cross sections …


Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering Feb 1940

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. OBJECT OF THIS REPORT 1. Investigation of the stress distribution in the bottom flange of beam A-14-612a after its reconstruction. 2. Investigation of the strain distribution in the bottom flange of beam D-18-12-816a. 3. Observations on beams E-18-12-816a and b.


Report On Pole Canyon Area And Area Three Miles Southeast Of Jefferson Island, Ted Newcombe Jan 1940

Report On Pole Canyon Area And Area Three Miles Southeast Of Jefferson Island, Ted Newcombe

Bachelors Theses and Reports, 1928 - 1970

The primary purpose of the trip was to acquaint the students with some of the problems that occur in the field, and also how to make geologic maps of sections, outcrops, faults, and other geologic features of the earths surface.


The Geology Of The Limespur-Sappington Area, Frank W. Archibald Jan 1940

The Geology Of The Limespur-Sappington Area, Frank W. Archibald

Bachelors Theses and Reports, 1928 - 1970

The area to be surveyed was divided up into sections add each crew of three or four members was assigned one of these sections. The first two days were spent in studying and mapping the geologic section in the South Boulder Canyon where we obtained practice in alidade surveying, brunton, pacing, and auto traverse.


The Quantitve Measurement Of Amalgamation, Robert A. Mcguire Jan 1940

The Quantitve Measurement Of Amalgamation, Robert A. Mcguire

Bachelors Theses and Reports, 1928 - 1970

Mercury has been known since ancient times. In fact, one mine, the "Almaden" in Spain, has been worked continuously since Roman times. It has been used during all this time for the recovery of free gold from gold concentrates, and from black sand and galena in concentrates from placer work.


Fauna Of The Three Forks Formation In Montana, Will Mitchel Jr. Jan 1940

Fauna Of The Three Forks Formation In Montana, Will Mitchel Jr.

Bachelors Theses and Reports, 1928 - 1970

The purpose of this paper is to identify and describe the fauna, correlate it with that of the Upper Devonian of other states, to note the geographic distribution, lithologic variations of outcrops, and to compare measured cross sections.


Hydrology Study For The Buffalo Bayou, Texas Flood Control Project., Wilbur E. Kelley 1908-1989 Jan 1940

Hydrology Study For The Buffalo Bayou, Texas Flood Control Project., Wilbur E. Kelley 1908-1989

Electronic Theses and Dissertations

No abstract provided.


Report Of Cooperative Investigation Of Joint Spacing In Concrete Pavements, Louis Campbell Jan 1940

Report Of Cooperative Investigation Of Joint Spacing In Concrete Pavements, Louis Campbell

Kentucky Transportation Center Research Report

In order to aid in a final determination of a rational, economical, and practical jointing method for concrete pavement, and to obtain factual data for future construction, the Kentucky Department of Highway built 6.27 miles of experimental pavement during the summer of 1940. This project was one of those planned by the Public Roads Administration and the Portland Cement Association in cooperation with the various states.


Photoelastic Investigation Of Short Beams, Ross R. Carrolla Jan 1940

Photoelastic Investigation Of Short Beams, Ross R. Carrolla

Masters Theses

"In this investigation the author used beams made of Bakelite. They were of rectangular cross-section and centrally loaded. These beams were viewed in polarized light and the maximum fiber stresses observed in that manner were compared with those computed from the flexure formula. The purpose was to determine the minimum length-depth ratio for which the latter gave fairly accurate results"--Preface, page 6.


The Clark National Forest Of Missouri, Walter A. Werner Jan 1940

The Clark National Forest Of Missouri, Walter A. Werner

Professional Degree Theses

"The question might logically arise as to the appropriateness of a thesis with a forestry title being submitted for an engineering degree. The writer has been connected with the United States Forest Service for the past four years in an advisory capacity on staff of the Forest Supervisor of the Clark National Forest, during which time he has found that the engineers and construction men have performed a major function in the development of the forest.

As the initial development consisting of lineal surveys, construction of roads and telephone lines, erection of fire lookout towers, planning and erection of ranger …


Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering Jan 1940

Cornell University School Of Civil Engineering Tests On Light Beams Of Cold-Formed Steel, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. IDENTIFICATION OF SPECIMENS. The method of designation used hitherto is not sufficiently differentiated to identify the present and future specimens since specimens with identical bottom flanges but different top flanges are used. For this reason from now on each specimen is designated by symbols and figures, for example D-18-16-88a in which: D designates a series of beams, 18 designates the gage of mterial used for web and bottom flange, 16 designates the gage of material used for the top flange, 8 designates the depth of the section in inches, 8 designates the width of the bottom flange in inches, …


Report On Tests Of Fenestra 1 1/2" Roof Deck Used In Horizontally Loaded Diaphragms, Authur Wilson, George Winter Dec 1939

Report On Tests Of Fenestra 1 1/2" Roof Deck Used In Horizontally Loaded Diaphragms, Authur Wilson, George Winter

CCFSS Library (1939 - present)

INTRODUCTION Increasing interest in recent years in the performance of roof systems acting as shear diaphragms to resist horizontally applied loads, as well as the vertical loads for which they are primarily designed, has led to an increasingly large number of tests of fullsize and scaled structures loaded in this manner. Fenestra, Inc., manufacturers of light gage steel floor and roof panels, has sponsored an extensive series of tests at Cornell University of floor and roof diaphragms composed of certain of their standard panel sections. The following report describes tests of shear diaphragms using three types of Fenestra 1 1/2" …