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Articles 194941 - 194970 of 196359

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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.


John Deere Model D, Nebraska Tractor Test Lab Jan 1940

John Deere Model D, 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 …


A Preliminary Report On The Placer Gold Deposits Of The Rio Acandi Seco, Choco, Republic Of Colombia, South America And A Possible Method Of Their Exploitation., Emmett Lee Arnold Jan 1940

A Preliminary Report On The Placer Gold Deposits Of The Rio Acandi Seco, Choco, Republic Of Colombia, South America And A Possible Method Of Their Exploitation., Emmett Lee Arnold

Professional Degree Theses

"This property covers the valley of the Rio Acandi Seco, in the district of Acandi, Intendencia (Territory) of Choco, Republic of Columbia, South America.

It consists of four claims, or pertenencias, each straddling and paralleling the course of the Acandi Seco River. Each claim is two kilometers in width, one kilometer on each side of the stream bed, and five kilometers in length, making an area two kilometers (1 1/4 miles) in width by 20 kilometers (12 1/2 miles) in length, containing about 10,000 acres, the conversion being only approximate. These four claims are shown on the attached map as …


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, …


Test 349: Case Model D, Nebraska Tractor Test Lab Jan 1940

Test 349: Case Model D, 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 …


Essentials Of Rock Drill Design, Lister Merriken Cummings Jan 1940

Essentials Of Rock Drill Design, Lister Merriken Cummings

Professional Degree Theses

"The earliest history of the rock drill is obscure and only fragmentary evidence concerning it is recorded in the Patent Office. However, no other tool has played a more important part in mining and excavating work. There have been two general classes of pneumatic rock drills -- the reciprocating, or piston machine, and the hammer drill. Fowler played an important part in the early development of piston machines, and the first hammer drill was made in about 1895 by a man named Brothers"--History, page 1.


The Application Of Fluid Level Measurements To Oil Wells In Kansas, Charles Calvert Rodd Jan 1940

The Application Of Fluid Level Measurements To Oil Wells In Kansas, Charles Calvert Rodd

Professional Degree Theses

"The mechanics of determining fluid levels and a knowledge of the depth-to-fluid in a well are matters of general interest. To the oil-producer, however, such information is of value only as it may affect the operation of a well or reservoir"--Uses of Fluid-Level Measurements, page 9.


X-Ray Data Concerning Some Manganese-Copper Alloys, George Lester Mitsch Jan 1940

X-Ray Data Concerning Some Manganese-Copper Alloys, George Lester Mitsch

Bachelors Theses

"Until recently the only commercial method of producing metallic manganese in large ammounts sic was a pyrometallurgical process. Producing a metal of about 97% purity, it was not very satisfactory. With the advent of a process for producing a metal of 99.9 plus % purity electrolytically, introduced by the United States Bureau of Mines, for the first time was there a sufficient quantity of pure manganese available for alloy use. The manganese-copper system was chosen for study because of the inconsistencies in the reports of previous investigators, and because of the properties alloys of these components possess, such as magnetism, …


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 …


A Study Of Opacity Produced By Insoluble Refractory Opacifiers, Theodore J. Planje Jan 1940

A Study Of Opacity Produced By Insoluble Refractory Opacifiers, Theodore J. Planje

Bachelors Theses

"To investigate opacification produced by insoluble, refractory opacifiers in an effort to obtain some knowledge and reliable data concerning the electrical charge on the particles - its quality and quantity, and the effect of heavy metallic ions upon the flocculation and deflocculation of the opacifying particles"--Object, page 1.


Firing Behavior Tests And Other Tests On A Missouri Stoneware Clay To Determine Its Commercial Possibilities, Ivan Martin Niedling Jan 1940

Firing Behavior Tests And Other Tests On A Missouri Stoneware Clay To Determine Its Commercial Possibilities, Ivan Martin Niedling

Bachelors Theses

"A clay's essential character is its plasticity, whether it is to be used for common brick purposes, the manufacture of refractory articles, or merely as a bonding agent for nonplastic materials. Plasticity is a very large subject; there are many theories as to its cause and many methods have been developed to record it, but so far no satisfactory quantitative measure of plasticity has been found. Perhaps the most satisfactory method is to judge by handling the clay, and with constant practice one can become expert in judging the plasticity of a clay by its feel. Such a method is, …


Red Glazes, Sidney Austin Peer Jan 1940

Red Glazes, Sidney Austin Peer

Bachelors Theses

"Red glazes are extremely difficult to produce on pottery except at relatively low temperatures, or under conditions which can only be regarded as largely accidental. For many years ceramists have demanded a red glaze maturing at cone 4. To produce this glaze, much time and research is required...The object of this study was to produce a commercial red glaze at cone 4 from different oxides in a base glaze of white lead and silica"--Scope of Investigation, pages 1, 7.


The Bloating Of Clays, Everett Walter Sharp Jan 1940

The Bloating Of Clays, Everett Walter Sharp

Bachelors Theses

"The effect of firing on clays in relation to volume is either a shrinkage, bloating, or no change whatso-ever. The reason for the shrinkage and the constant volume is well known, but the cause of the bloating has not as yet been determined. In some instances, as the use of fire clay brick in steel ladles, this property of bloating is desirable to a certain extent because this packs the brick lining in the ladle tightly after the first heat is poured in, and prevents the brick lining from floating out when the metal is poured. There is little or …


The Effect Of Clays On The Properties Of Masonry Cement, William Joseph Smothers Jan 1940

The Effect Of Clays On The Properties Of Masonry Cement, William Joseph Smothers

Bachelors Theses

"Portland cement is not a material of great antiquity. It was discovered only a little over a century ago and quite by accident. It has been the custom in the manufacture of hydraulic limes to heat argillaceous limestones to temperatures not greatly above that at which the carbon dioxide would be liberated, but this process was carried out in a stack furnace under conditions such that some parts of the material were heated to temperatures which produced sintering. These hard lumps of sintered material were discarded because they were so much more difficult to grind than the unsintered However, in …


The Production Of High Alumina Refractories Bonded With Lumnite Refractory Cement, Joseph Lewis Hoffman Jan 1940

The Production Of High Alumina Refractories Bonded With Lumnite Refractory Cement, Joseph Lewis Hoffman

Bachelors Theses

"Users of refractories are constantly demanding a better product. There is a demand for a satisfactory neutral or basic refractory with a P.C.E. equivalent of cone 35 or better. A refractory with a very high alumina content would seem to solve this problem, however, the main difficulty has been to bond the unplastic alumina. From the literature it was learned that Lumnite cement has been satisfactory in the manufacture of a refractory concrete. Therefore this investigation was carried out to determine the adaptability of bonding corundum with Lumnite"--Introduction, page 1.


Test 362: Allis-Chalmers Model Hd-14, Nebraska Tractor Test Lab Jan 1940

Test 362: Allis-Chalmers Model Hd-14, 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 …


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.


1940 Report Of Trip To Mines And Tunnels In The Southwest, T.H. Oaas, E.I. Renouard Jan 1940

1940 Report Of Trip To Mines And Tunnels In The Southwest, T.H. Oaas, E.I. Renouard

Mining Engineering

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.


Test 350: John Deere D, Nebraska Tractor Test Lab Jan 1940

Test 350: 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 …


Test 344: International Tractractor Model Td-9 (Wide Tread), Nebraska Tractor Test Lab Jan 1940

Test 344: International Tractractor Model Td-9 (Wide Tread), 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 341: M-M Twin City Model Rtu, Nebraska Tractor Test Lab Jan 1940

Test 341: M-M Twin City Model Rtu, 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 345: International Tractractor Model Td-6 (Widetread), Nebraska Tractor Test Lab Jan 1940

Test 345: International Tractractor Model Td-6 (Widetread), 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 346: International Tractractor Model T-6 (Wide Tread) (Gasoline), Nebraska Tractor Test Lab Jan 1940

Test 346: International Tractractor Model T-6 (Wide Tread) (Gasoline), 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 260: Allis-Chalmers Model Hd-7w (Wide Tread), Nebraska Tractor Test Lab Jan 1940

Test 260: Allis-Chalmers Model Hd-7w (Wide Tread), 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 359: Massey-Harris Model 101r Junior, Nebraska Tractor Test Lab Jan 1940

Test 359: Massey-Harris Model 101r Junior, 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 360: Allis-Chalmers Model Hd-7w (Wide Tread), Nebraska Tractor Test Lab Jan 1940

Test 360: Allis-Chalmers Model Hd-7w (Wide Tread), 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 356: Mccormick-Deering Model Wd-6 (Diesel), Nebraska Tractor Test Lab Jan 1940

Test 356: Mccormick-Deering Model Wd-6 (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 …