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Tests On Light Beams Of Cold Formed Steel, American Iron And Steel Institute

CCFSS Library (1939 - present)

1. SCOPE OF THIS REPORT Failure tests have been carried out on beams 0-3, P-3/Q-3, I-1, I-2, I-3, H-1, H-2, H-3, and K-1. As mentioned in the Sixteenth Progress Report (p. 15) it was, anticipated that beams H,I,K, as originally designed, would fail in pure yielding. Since such a failure is not revealing for this investigation, an attempt was made to narrow both flanges of these beams. This work was done in the shops of the School of Civil Engineering and of the School of Mechanical Engineering. It turned out, however, that in cutting off parts of the flanges, the …

Pegmatites In Southwestern Montana, Ora Rostad

Bachelors Theses and Reports, 1928 - 1970

Little has been written on pegmatites in Montana except in conjunction with reports on mining districts. This subject was chosen as a senior thesis to see what facts could be ascertained re­garding pegmatites alone, and an attempt has been made by the writer to assemble all written material on pegmatites in southwestern Montana, and to study specimens from those that could be reached or from which specimens were available.

Newark Engineering Notes, Volume 4, No. 2, March, 1941, Newark College Of Engineering

Newark Engineering Notes

A journal by the administration, faculty and alumni of the Newark College of Engineering. This issue includes: "The President's Diary" by Allan R. Cullimore "Move Over, Mr. Field Man" by Marvin B. Scher "Formulas for the Solution of Catenary Problems" by Joseph Joffe "Methods of Subsurface Explorations" by D. C. Frost "The Fundamental Principles of Electricity in Modern Terminology" by Paul C. Shedd "The Value of Libraries to Engineers" by Ira A. Tumbleson "The Second River Joint Sewer" by Edward S. Rankin "S. P. E. E. and N. C. E." "American Society of Civil Engineers" "Conference on Land Surveying" "Professor …

Tests On Light Beams Of Cold Formed Steel For The American Iron And Steel Institute, American Iron And Steel Institute

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT Failure tests on two specimens each of beam type A, B, C, D, E, F, G, have been carried out. The lengthy final evaluation of the results will be given in a later report. However, the results of the tests reported herein allow the drawing of rather definite conclusions.

The Electrolytic Separation Of Copper, Nickel And Precious Metals From Copper-Nickel Matte, Oden Cass Garst

Professional Degree Theses

"During the last few years considerable interest has been shown in domestic reserves of strategic metals. Broadly speaking, the strategic materials of any nation are those materials of commerce essential to the country both in time of war and peace, which are not produced within the boundaries of that country in sufficient quantities to supply even peace-time requirements. The United States is far more fortunate than other countries inasmuch as there are only eight metals which may be classified as being strategic metals; namely, aluminum, antimony, chromium, manganese, nickel, mercury, tin, and tungsten. The work on nickel covered herein was …

Coal Mine Safety Engineering, Charles F. Herbert

Professional Degree Theses

"The progress of coal mine safety may be compared to the development in mining through the years. When coal was first discovered centuries ago, it was taken from river or creek beds and from the outcroppings on the sides of hills. After removing the most accessible coal from the surface, it was necessary to mine the coal by quarrying or stripping the overburden from the coal seams. It is reasonable to assume that when such operations began, accidents of a serious nature also began to occur. Such accidents were no doubt due to rolling rocks or stones, falling material, and …

Some Causes For Porosity And Leakage In Non-Ferrous Castings, Alfred H. Hesse

Professional Degree Theses

"Non-ferrous copper base alloys find many applications in industry. Among these alloys one finds the tin bronzes rather widely used for many purposes, and by delving still farther one finds pressure castings as one of their important applications. In many foundries the percentage of rejections due to leakage or porosity is quite high. This is obviously very costly since leakage is generally only found after machining. It is with a view to determine the causes for leakage in pressure castings and to devise methods for its prevention that the work described in this thesis was undertaken. It is not intended …

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 In the preceding 14th Progress Report a method was proposed to determine the forces acting in the welds in the web of I-beams composed of two channels. This method essentially has been based on the magnitude "e", the distance of the flexural center from the axis of the web. A formula for "e" was given which applies to symmetrical channels of uniform thickness. In the present report this expression for "e" will be simplified and a more general expression will be derived for "e" for symmetrical channels with web thickness differing from flange thickness. Furthermore, …

The Effect Of Glaze Fit Upon The Strength Of Missouri Zadock, Karl Emil Krill, Floyd Rolland Elliott

Bachelors Theses

"We know that, in the case of a beam, the really effective part of the cross-sectional area is that part farthest from the neutral axis. The I-beam, with most of the central area eliminated, is just as strong as is the rectangular beam of similar outside dimensions. Why should not the glaze on a piece of ceramic ware play as important a part in the strength of the piece as does the outermost area in a beam? Microscopic cracks in the flanges of an I-beam weaken it appreciably. Might not a parallel case exist in a piece of glazed pottery …

Characteristics Of Pyrometric Cone Equivalent Test Furnaces, Alfred W. Allen, Joseph T. Dusza

Bachelors Theses

"Though the method of determining the pyrometric cone equivalent of various silicate materials used in the refractories industry has been standardized by the American Society for Testing Materials (A.S.T.M. Designation: C24-35) as to the rate of heating, method of preparation of sample, mounting of test cones, and the interpretation of results, there still remains some variation in the results obtained by different operators using different types of P.C.E. furnaces. The three types of furnaces most generally used are: the Fulton-Coursen Granular Resistance Furnace, the Denver Fireclay Furnace developed by the American Refractories Institute using gas, and the General Refractories' Oxy-acetylene …

The Chemical Engineering Aspects Of The Saint Louis Smoke Problem, George Augustus Hale

Professional Degree Theses

"During past years smokeless combustion of fuels has been conscientiously sought only in those larger industrial plants where fuel costs were a major factor. Smoke was considered a sign of prosperity in some moderate and even large size industrial practice, and no wholehearted effort was made to utilize the vast amount of energy lost through the smoke stack in the form of unoxidized carbon.

Inefficient combustion, which is so common today, is due in part to a wrong approach to the study of this problem. Industrial combustion, as a science, has, to a certain extent, been left to the mechanical …

The Scope Of Functions Delegated To The Engineering Department Of A Typical, Progressive Metal Mine, Alvin William Knoerr

Professional Degree Theses

"Nearly every conscientious engineering student will subject his college courses to an occasional critical analysis in an effort to assure himself that the studies he is pursuing will be a valuable aid to him in future practice. Possibly this skeptical attitude is accentuated by published letters of graduate mining engineers who decry the courses of mining schools in general and clamor for more practicability and higher specialization. Pure science as it is taught may at times seem to be very remote from any possible practical application. Mathematics may appear to be highly abstract. It seems quite logical that the degree …

Dewatering & Rehabilitating The Oronogo-Webb City Mining Area, Robert Knox Stroup

Professional Degree Theses

"The object of this paper is to describe the dewatering of the Oronogo-Webb City mining area, and the subsequent mining operations which were carried on in the northern section of that area. It deals with the development in that district during the time the writer was familiar with operations there; i.e., from 1935 to 1939, inclusive, and no attempt is made to describe the open pit mining and local milling which have been carried out as a latter part of this same project. Also, no attempt is made to describe the surface drainage work which was planned and carried out …

The Relative Merits Of The Electrolytic Deposit And The Galvanic Nickel Deposit When Used To Produce Enamel Adherence, Marvin Edward Pingel

Bachelors Theses

"The purpose of this paper is to determin sic if nickel deposited electrolytically from a nickel bath at 100ʻF. or less gives the same adherence qualities to enameling steel that nickel deposited galvanically at 160-180ʻF. produces"--Purpose of This Paper, page 1.

Dry Pressing Refractory Insulating Brick, Frank Clarence Steimke

Bachelors Theses

"The expensive process of grinding the insulating brick and the slow production methods of hand forming led to the possibilities of dry pressing the brick. The use of the dry press would increase production, give greater uniformity to the brick and materially reduce grinding if not eliminating it entirely. Since present day combustives were either impractical or else impossible to use, some new material must be found. Three materials presented themselves, napthalene, sulfur, and petroleum coke. The former for its low melting temperature and the latter two for their complete volatility at high temperatures and low if not negligible resiliency. …

Firing Behavior Of Missouri Plastic Fire Clay, William E. Crockett

Bachelors Theses

"There are two districts in Missouri in which plastic fire clay occurs. The oldest and least significant of these deposits is the "Cheltenham", in the St. Louis area. The most prominent area in which plastic fire clay occurs is generally termed the "east central" district. Included in this district are Calloway, Montgomery, Audrain, Warren, Boone, Monroe, Pike and Lincoln Counties. The clay as tested in this report occurs in Boone County, near Columbia. A plastic fire clay does not have as high a P.C.E. (pyrometric cone equivalent) as the ordinary flint and semi-flint clays, but its high plasticity warrants its …

Solubility Of Glass Tank Refractories Using A Small Electrically Heated Furnace, James Vincent Heddell

Bachelors Theses

"This investigation was undertaken to study the refractory blocks used in glass furnaces - their relation with the molten glass. It was decided to employ for this examination a model glass tank, heated by electrical carborundum resistors known as Globars. Experimental glass tanks have been constructed using fuel oil or gas to obtain the required heat to perform melting. These fuels were used mainly to simulate commercial practice and thus to obtain results which could be easily applied to industrial furnaces. The design of a model electric tank is included as part of this investigation"--Purpose of the Investigation, page 4-5.

A Study Of Base Exchange And Attendant Disintegration In Carthage Marble, Elmond Lowell Claridge

Masters Theses

"The purpose of this investigation was to study the base exchange reaction occurring in Carthage marble as a possible cause of unusually rapid disintegration of Carthage marble which has been widely observed in various localities and under certain conditions. If this were found to be the principal cause of such disintegration the groundwork would be laid for research on a means of preventing it. According to Mr. R. E. Mayes, president of the Carthage Marble Corporation, forty to fifty percent of the stone quarried by this company is discarded because of large stylolitic veins. This represents a loss of many …

Electrodeposition Of Copper-Lead Alloys From A 7.2 Per Cent Amine Solution Saturated With Respect To Copper And Lead. Study Of The Production Of Cupric Oxide To Be Used As Solute, Edmund Simon Roszkowski

Masters Theses

"The purpose of this work is to deposit electrolytically a copper-lead alloy from an amine solution for use specifically as a bearing metal. Generally speaking there are four classes of bearing metals: tin base alloys or the babbitts; the cadmium base alloys or the white metals; the silver alloys; and the copper-lead alloys. Additions of other metals may be employed to produce alloys with certain desirable properties"--Introduction, page 1.

The Decolorization Of Wood Rosin., Bernard Samuel Pressburg

LSU Historical Dissertations and Theses

No abstract provided.

The Mineral Association In Manganese Ores, With Particular Reference To The Phosphorus-Bearing Minerals And Their Removal By Leaching Methods, Daniel Chalmers Mclean

Masters Theses

"The United States Bureau of Mines Experimental Station at Rolla has recently been conducting an intensive investigation of the amenability of Arkansas red ores to enrichment by standard ore dressing methods. These Arkansas ores are low grade with the estimated reserves running into several million tons. They can be concentrated to meet all Grade B ferromanganese specifications - with the exception of that of the phosphorus content, but in all cases the phosphorus is so high as to make the ore worthless under present conditions. This condition suggested the problem of trying to discover a method by which the phosphorus …

Sewer System And Treatment Plant For Middlesboro, Kentucky., Robert E. Martin

Electronic Theses and Dissertations

No abstract provided.

Manufacture Of Salt Cake By The Hargraeves Process, Philip Hall Delano

Masters Theses

"The Hargraeves process of manufacturing salt cake has not lived up to the great expectations that were held for the process at the time of its development...The inventors, Hargreaves and Robinson, do not pretend to have been the first to make salt cake by the action of sulfur dioxide upon common salt in the presence of air and steam; they claim only to have made the process practicable by a large number of patents. Numerous earlier patents for this reaction were taken out by others but none of these former proposals was successful; it was the details of the process …

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 It has been mentioned repeatedly in previous Reports that the spot welds in the web joining the two parts of the beam tended to pull apart at the supports. It is therefore obvious that, in order to properly design such beams, this fact must be taken into consideration. The present report undertakes to give an analysis of this behavior and to stipulate certain requirements with respect to these welds (strength, spacing) which have to be met in order that such failures may be excluded. The present analysis pertains only to beams made up of two …

Newark Engineering Notes, Volume 4, No. 1, November, 1940, Newark College Of Engineering

Newark Engineering Notes

A journal by the administration, faculty and alumni of the Newark College of Engineering. This issue includes: "The President's Diary" by Allan R. Cullimore "Defense Shelters for Civilians" by Harold N. Cummings "Highways and Defense" by Robert W. Van Houten "Bomb Shelters as Recreation Rooms" by Odd Albert "The Cover Design" "A Precision "Q" Meter" by Alfred Heinz "Some Fundamentals of Geology" by D. C. Frost "Named Adviser for Training" "Economics for Industrial Engineers" by George D. Wilkinson "Graduate Students—Newark College of Engineering" "Promotions and Appointments" "Professionalities" "A. S. M. E. Student Chapter Growth" "Fall Convocation Addressed" by Dr. Jackson …

School Of Civil Engineering, Cornell University Tests On Cold Formed Steel Studs For The American Iron And Steel Institute, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT (a) Results of tests on single stud panels having collateral attached at various intervals along the studs and by means of several types of fastenings. (b) Shear strength of Armstrong Linoleum Cement bonding Homosote to steel studs. (c) Discussion of the theoretical factors in formulating test program. (d) Summary.

Fm 30-15, Examination Of Enemy Personnel, Repatriates, Documents, And Materiel. July 22, 1940, Robert Bolin Depositor

United States Department of Defense Military Intelligence

Three-fourth of this manual deals with the treatment of enemy personnel and repatriates, one quarter with documents, and only one brief section, about 1 page, with enemy materiel.

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 All tests on the present series of 24 beams (series D and E) have been completed. In particular since the time of the 10th Progress Report the following tests have been carried out: Failure tests on eleven beams, viz. D-18-18-88a and b; E-18-14-88a and b; E-18-16-83a and b; D-18-14-88a and b; D-18-16-88a and b; E-18-12-816a. In addition further investigations have been made on the bottom flanges of the beams D-18-16-88a and b and E-18-12-816a.

School Of Civil Engineering, Cornell University Tests On Cold Formed Steel Studs For The American Iron And Steel Institute, Cornell University School Of Civil Engineering

CCFSS Library (1939 - present)

I. SCOPE OF THIS REPORT This report presents: (a) Results of buckling tests on Type A studs with "minimum restraint" or "actual" end condition. (b) Diagrams summarizing results of all tests on individual studs.

Newark Engineering Notes, Volume 3, No. 4, May, 1940, Newark College Of Engineering

Newark Engineering Notes

A journal by the administration, faculty and alumni of the Newark College of Engineering. This issue includes: "The President's Diary" by Allan R. Cullimore "The Engineer in Public Service" by Joseph M. Byrne, Jr. "Peter Homack Wins Award" "Why Should I Study This?" by James A. Bradley "The General Quadratic, or Conic, Angle and Its Functions" by Albert A. Nims "An Automatic Slide-Back V. T. Voltmeter" by Philip E. Volz "Civilian Pilot Training Course" "An Optical Method of Visualizing Low Velocity Air Flow" by Stanley Corrsin "Promotions and Appointments" "Co-Operative Plan for Graduate Work "General Motors Assembly of College Students" …