Engineering Commons^™

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 …

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.

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.

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

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.

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

Electronic Theses and Dissertations

No abstract provided.

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" …

Specification For Steel Roof Decking (Revised Draft, November 16, 1939), American Iron And Steel Institute Committee On Building Codes

Steel Deck Institute (SDI) Specifications and Manuals (1939 - present)

1. General: Steel Roof Decking, as referred to in this code, shall mean specifically the light gage steel unit sections whose function and purpose shall be to support the necessary live load, together with the dead load of roofs in accordance with the provisions and requirements of the following sections.
2. Materials
3. Form of Deck
4. Span Length
5. Bearing
6. Design
7. Unit Stress
8. Moment Coefficients
9. Connections
10. Deflection
11. Fire Rating
12. Special Steel Roof Decks

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 The full program of tests outlined at the meeting of the Technical Subcommittee held in Ithaca on June 12 has been carried out with one exception: due to the limited time it has not been possible to determine the modulus of elasticity of the sheets. However since the modulus of elasticity of steel under any circumstances is about 29,000,000 to 30,000,000 p.s.i. this point of the program has no immediate practical significance. The following tests have been carried out: 1. Tests to failure of the remaining specimens of the series B - 22. 2. Determination …

Montana Oil Fields, Conrad F. Lundgren

Bachelors Theses and Reports, 1928 - 1970

Since the discovery of oil in Montana in1916, the petroleum industry has advanced to a point where over 5,000,000 barrels of oil worthover $6,500,000 has been produced in each of the three past years (1936, 1937, and 1938).

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 Buckling tests have been carried out on the remaining three beams of the 22 gage series, i.e. B-22-812a, B-22-816a and B-22-820a. A stress survey has been made on the bottom flange of beam B-22-812b. A new series of 22 gage specimens has been designed for the further study of the bottom flange stresses and of the top flange buckling.

The Age Hardening Of Silver With Copper-Silicide, Joseph Edward Shaw

Bachelors Theses and Reports, 1928 - 1970

The successful application of the phenomenon of pre­cipitation hardening to aluminum and copper has indicated the possibility of hardening all metals in the same way. The phenomenon of age hardening was discoveredin 1911, and since that time much research has been car­ried on in all parts of the world on various alloy sys­tems.

Structure Of Eutectics, Dilip K. Das

Bachelors Theses and Reports, 1928 - 1970

The present paper is a result of work done on the study of structures of eutectics of a certain eutectic-forming binary systems. In this research work no systems with intermetallic compounds have been studied.

Investigation Of A Method For Extraction Of Indium From Zinc Flue Dust., Harold L. Tanner

Bachelors Theses and Reports, 1928 - 1970

In metallurgical practice today some of the relatively rare metal Indium is recovered as a by-product from the ores of other metals. Indium is a soft, silvery—white metal belonging to the third group of the periodic classification. It is situated just above tin in the electrochemical series.

A Study Of Solders, John D. Prater

Bachelors Theses and Reports, 1928 - 1970

The purpose of this paper is to furnish a qualitative method of comparing the degree of wetting of various solders upon different plate metals when several fluxes are used.

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 Since the investigations discussed in the previous report have proved that the stress distribution at midspan was fairly uniform in the narrowest, medium and widest beams of the 14 gage series, it seemed unnecessary to carry out investigations on the remaining two intermediate beams A-14-66 and A-l4-610. Three beams of the 22 gage series have been investigated so far, namely B-22-84a and b and B-22-88a. Detailed stress distribution surveys have been carried out at midspan on beams B-22-84b and B-22-88a. It was impossible to carry out such a survey on beam B-22-84a, since this beam …

The Pre-Jurassic Surface Of Montana., G. Fay

Bachelors Theses and Reports, 1928 - 1970

It has long been known that, prior to the deposition of Jurassic sediments, Montana was subjected to an intensive period of erosion. Mention of this may be found in numerous reports, especially those dealing with western Montana.

Electrolytic Manganese, George T. Derana

Bachelors Theses and Reports, 1928 - 1970

The production of metallic manganese by electrolysis is of potential value for the recovery of this strategic metal from domestic deposits. These deposits are largely unsuitable for the production of ferromanganese, but they are amenable to low-cost leaching processes.

Igneous Rocks Of The Jardine And Crevasse Mountain Mining Districts., Ray E. Gilbert

Bachelors Theses and Reports, 1928 - 1970

It is surprising to learn that so large a variety of igneous rocks is present in the Jardine and Crevasse Mountain mining districts, a region that is generally thought of as consisting principally of schists.

The Age Hardening Of Copper With Manganese Silicide., Gordon A. Davis

Bachelors Theses and Reports, 1928 - 1970

The increase in hardness is attributed to the manganese silicide being precipitated from solid solution and deposited between crystal planes. The subsequent softening which occurs on prolonging the period of reheating is believed to be due to an agglomeration of the dispersed hardening agent.

Geology Of The Golden Sunlight Mine And Vicinity, Roy H. Earhart

Bachelors Theses and Reports, 1928 - 1970

The Golden Sunlight Mine is in the northern part of the Cardwell mining district on the eastern slope of a small range that rises by a series of benches to an elevation of 7,200 at a point five miles east of the town of Whitehall in Jefferson County.

Powder Metallurgy, Cecil R. Waldron

Bachelors Theses and Reports, 1928 - 1970

The metal powders may be produced in a number of different ways. In metals where the intercrystalline material is brittle enough, they may be ground in a ball mill or eddy mill. The fineness of such a powder is more or less controlled by the grain size of the original metal.

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 After having obtained preliminary information from the abbreviated tests referred to in the previous report, a detailed survey of the stress distribution over the bottom flange at midspan has been carried out for the beams A-14-612b, A-14-612a and A-14-68a (in chronological order). Furthermore a special investigation has been made at the same section of beam A-14-612a for the purpose of determining the accuracy of the actual strain measurements.

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

CCFSS Library (1939 - present)

Cornell

Geology Of A Portion Of The Bull Mountain Range Jefferson County, Montana, Thomas A. Greene

Bachelors Theses and Reports, 1928 - 1970

Work was first done on a known section, the south Boulder Section, in order to familiarize the student with the formations. Most of the area was mapped by plane table and telescopic alidade, general features being surveyed by automobile traverse and a pacing traverse.

A Report Of The Geology Of The Golden Sunlight Mining District, Roy A. Mccready

Bachelors Theses and Reports, 1928 - 1970

This paper is a report of a geological survey made of an area of approximately fifty square miles lying Northeast of Whitehall, Montana, in the region of the Golden Sun­light Mine. The survey was made by a field party consisting of twenty-three members of the senior class of the Montana School of Mines.

The Construction Of Cofferdams Dam No. 26, Alton, Illinois, Arthur James Williams

Professional Degree Theses

"This report is intended to serve as a record of the procedure followed by the Engineering Construction Corporation in the construction and removal of the three cofferdams used during the construction of the Alton Dam with resulting problems, progress and costs"--Introduction, page 1.

Malaria Control Engineering On The Pickwick Reservoir, Cornelius Wolfram Kruse

Professional Degree Theses

"During the past year in an area extending south of a line between Norfolk, Virginia and St. Louis, Missouri, it has been estimated that about 10,000 deaths and staggering economic losses were caused by malaria fever...Since the recent inauguration of river development projects on the various streams in the so-called "malaria belt" of our country, malaria control methods on impounded waters have been of increasing concern to the health workers of the South...Mosquito control on impounded waters must be constructed into the dam design and requires a careful program of reservoir preparation or conditioning of the body of water so …

South Moccasin Kaolin Deposit, Walter Everly

Bachelors Theses and Reports, 1928 - 1970

Kaolin has never been considered an important economic mineral in Montana. Deposits of Kaolin in this state are not described in the literature and apparently very few deposits have been found.

Coordination Of Transportation Systems Of The United States, Herman Blickensderfer

Masters Theses

"To any thinking man it must be apparent that the railroads are of vital necessity to the country at large as they can more cheaply move a host of the heavy commodities than can the trucks, and of course the waterways do not and cannot reach every part of the vast territory that must be served. On the other hand it is equally apparent that many of the other types of traffic can be handled more readily and cheaply by truck than by rail. This would lead one to conclude that some way should be found to give to each …