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Articles 191851 - 191880 of 192909

Full-Text Articles in Engineering

Test 248: Twin City M-M Model Mta, Nebraska Tractor Test Lab Jan 1935

Test 248: Twin City M-M Model Mta, 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 …


Test 232: John Deere B, Nebraska Tractor Test Lab Jan 1935

Test 232: John Deere B, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere B

TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear.

This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated.

BELT HORSEPOWER TESTS

TEST …


An Acoustical Investigation Of Parker Hall Auditorium At The School Of Mines And Metallurgy Of The University Of Missouri, John Douglas Martin Jan 1935

An Acoustical Investigation Of Parker Hall Auditorium At The School Of Mines And Metallurgy Of The University Of Missouri, John Douglas Martin

Masters Theses

"The auditorium in Parker Hall on the Missouri School of Mines campus has been noted locally for its poor auditory characteristics. At times in the past corrective treatment has been considered but no detailed or experimental data were gathered. In September of 1934 the writer was detailed under an FERA project to study the room and to determine the best method of correction"--Introduction, page 1.


The Fluorine And Manganese Content Of Certain Missouri Waters, Erwin Charles Hoeman Jan 1935

The Fluorine And Manganese Content Of Certain Missouri Waters, Erwin Charles Hoeman

Masters Theses

"Since early in 1931, considerable attention has been brought to bear upon the subject of fluorides in drinking water supplies, following the discovery of high fluoride concentrations in waters consumed by persons afflicted with the dental defect known as mottled enamel. Analyses have been made, in the course of this study, of a comparatively large number of Missouri waters. The waters analyzed have been collected and made available by the Missouri Geological Survey and Water Resources. They have been secured from diverse sources and include surface waters and underground waters from different geological formations, throughout the State of Missouri"--Introduction, page …


The Bromine And Iodine Content Of Certain Saline Ground Waters Of Missouri, Erwin Carl Meckfessel Jan 1935

The Bromine And Iodine Content Of Certain Saline Ground Waters Of Missouri, Erwin Carl Meckfessel

Masters Theses

"This report on the saline waters of Missouri covers a preliminary investigation carried on in cooperation with the Geological Survey of Missouri and through the funds appropriated for an F E R A project.

The information contained herein will give the bromine content of the saline waters of Missouri from those districts from which samples were obtainable. The samples were obligingly furnished by the Missouri Geological Survey together with a complete geological, geographical, and chemical analysis of each sample.

The relationship between the occurrence of bromine in saline waters of other parts of the country and those saline waters investigated …


Test 243: Caterpiller Model 40 (Diesel), Nebraska Tractor Test Lab Jan 1935

Test 243: Caterpiller Model 40 (Diesel), 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 …


Test 236: John Deere D, Nebraska Tractor Test Lab Jan 1935

Test 236: John Deere D, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere D

TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear.

This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated.

BELT HORSEPOWER TESTS

TEST …


A Survey Of The Status Of Ramie., Gipson Lafayette Carter Jan 1935

A Survey Of The Status Of Ramie., Gipson Lafayette Carter

LSU Historical Dissertations and Theses

No abstract provided.


Construction And Application Of A Vacuum Tube Potentiometer., R. Palmer Benedict Jan 1935

Construction And Application Of A Vacuum Tube Potentiometer., R. Palmer Benedict

Electronic Theses and Dissertations

No abstract provided.


The Air And Vacuum Drying Of Prussian Blue., David B. Ardern Jan 1935

The Air And Vacuum Drying Of Prussian Blue., David B. Ardern

Electronic Theses and Dissertations

No abstract provided.


Physical Properties Of Silica-Plaster Mixtures., Robert Neiman Jan 1935

Physical Properties Of Silica-Plaster Mixtures., Robert Neiman

Electronic Theses and Dissertations

No abstract provided.


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 …