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Articles 39991 - 40020 of 40851

Full-Text Articles in Engineering

Test 456: David Bradley Garden Tractor, Nebraska Tractor Test Lab May 1951

Test 456: David Bradley Garden Tractor, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Production Of Sponge Iron From Pyrites, Robert W. Leeson May 1951

Production Of Sponge Iron From Pyrites, Robert W. Leeson

Bachelors Theses and Reports, 1928 - 1970

The purpose of this thesis is to record and discuss the results of tests conducted, at the Montana School of Mines, in which pyrite concentrates from the Concentrator Department of the Anaconda Reduction Works, Anaconda, Montana, were subjected to the reducing effects of natural gas at elevated temperatures in an endeavor to produce iron in the metallic form.


A Microscopic Study Of The Ore Minerals From The Mines In The Northern Part Of The Zosell (Emery) Mining District, John P. Joyce May 1951

A Microscopic Study Of The Ore Minerals From The Mines In The Northern Part Of The Zosell (Emery) Mining District, John P. Joyce

Bachelors Theses and Reports, 1928 - 1970

Any investigation of the many gold silver producing districts of Montana will necessarily include the name Zosell. The Zosell Mining District, often referred to as the Emery District, was never a major producer in the state; however, its location, history, type of deposit, and char­acter of ore, has drawn the interest of many prominent investigators of the mineral industry.


Faunal Studies Of The Sappington Sandstone Of Southwestern Montana, Howard E. Banta May 1951

Faunal Studies Of The Sappington Sandstone Of Southwestern Montana, Howard E. Banta

Bachelors Theses and Reports, 1928 - 1970

The exact upper boundary of the Devonian of Mont­ana has long been a controversy, as is true of the Dev­onian-Mississippian contact in many other localities. In an effort to delimit the upper Devonian, various paleontologic studies have been made, more especially in the southwestern part of the state.


Geology Of A Postulated Volcanic Vent Northeast Of Whitehall, Montana, C. H. Hewitt, H. D. Olson May 1951

Geology Of A Postulated Volcanic Vent Northeast Of Whitehall, Montana, C. H. Hewitt, H. D. Olson

Bachelors Theses and Reports, 1928 - 1970

The possibility of defining the roots of one of the volcanic sources of the Upper Cretaceous Livingston formation led to the detailed mapping upon an enlarged aerial photograph of a complexly intruded, folded, and faulted area about 10 miles northeast of Whitehall, Montana.


A Listing Of Montana Invertebrate Fossils And A Bibliography Of Montana Paleontology, Robert G. Ingersoll May 1951

A Listing Of Montana Invertebrate Fossils And A Bibliography Of Montana Paleontology, Robert G. Ingersoll

Bachelors Theses and Reports, 1928 - 1970

The oldest system in which identifiable invertebrate fossils have been found is the Cambrian. The basal Cambrian formation found in Montana is the Flathead sandstone and quartzite of Middle Cambrian age. No fossils have been reported from this formation. Above the Flathead is the Wolsey formation composed of green fissile shale with sandy and limy members. This fossiliferous member of the Middle Cambrian is known in Northwestern Montana as Gordon, and in the Philipsburg quadrangle as the Silver Hill formation.


Mineralogy Of The Silver King Mine Of Park City, Utah, Pierce D. Parker May 1951

Mineralogy Of The Silver King Mine Of Park City, Utah, Pierce D. Parker

Bachelors Theses and Reports, 1928 - 1970

Except for the early work of Boutwell and Irving, little has been published on the geology of the Park City mining district. For this reason and because of the availability of a selected suite of ores from the Silver King mine of this area, this writer chose the mineralogy of the Silver King mine as a senior thesis for the de­partment of Geology of the Montana School of Mines.


The Construction Of A Ferromagnetic Torsion Balance, Elliott Willner May 1951

The Construction Of A Ferromagnetic Torsion Balance, Elliott Willner

Bachelors Theses and Reports, 1928 - 1970

The construction of the apparatus was performed entirely in the machine shops at the Montana School of Mines. The materials utilized in the construction were obtained through the courtesy of many sources: the A. C. M. Co., the Montana Power Co., and the Western Iron Works.


Test 455: Massey-Harris Model 55, Nebraska Tractor Test Lab Apr 1951

Test 455: Massey-Harris Model 55, Nebraska Tractor Test Lab

Nebraska Tractor Tests

This report and any related files are made available to the online through the Lester F. Larsen Tractor Test and Power Museum as resources allow. Established in 1998, this museum is located on the University of Nebraska-Lincoln East Campus. It is and appropriately housed within the walls of the historic 1920 Nebraska Tractor Test Laboratory, where the first tractor test was started on March 31st, 1920. Because the pioneer tests became worldwide standards, this location was designated as a Historic Landmark of Agricultural Engineering by the American Society of Agricultural Engineers in 1980, shortly after testing was moved to a …


Possible Mineral Resources University Land Grant, Montana School Of Mines Lands, Eugene S. Perry Feb 1951

Possible Mineral Resources University Land Grant, Montana School Of Mines Lands, Eugene S. Perry

Bachelors Theses and Reports, 1928 - 1970

The following evaluation of the mineral resources of the University Land-Grant lands has been made from an office study of geologic maps and published reports, and from a rather thorough knowledge of the geology of the state by the writer after 23 years of experience in the state.


Possible Mineral Resources University Land Grant, Montana State University Lands, Eugene S. Perry Feb 1951

Possible Mineral Resources University Land Grant, Montana State University Lands, Eugene S. Perry

Bachelors Theses and Reports, 1928 - 1970

The following evaluation of the mineral resources of the University Land-Grant lands has been made from an office study of geologic maps and published reports, and from a rather thorough knowledge of the geology of the state by the writer after 23 years of experience in the state.


Possible Mineral Resources University Land Grant, Montana State College Lands, Eugene S. Perry Feb 1951

Possible Mineral Resources University Land Grant, Montana State College Lands, Eugene S. Perry

Bachelors Theses and Reports, 1928 - 1970

The following evaluation of the mineral resources of the University Land-Grant lands has been made from an office study of geologic maps and published reports, and from a rather thorough knowledge of the geology of the state by the writer after 23 years of experience in the state.


Possible Mineral Resources University Land Grant, Western Montana College Of Education, Eugene S. Perry Feb 1951

Possible Mineral Resources University Land Grant, Western Montana College Of Education, Eugene S. Perry

Bachelors Theses and Reports, 1928 - 1970

The following evaluation of the mineral resources of the University Land-Grant lands has been made from an office study of geologic maps and published reports, and from a rather thorough knowledge of the geology of the state by the writer after 23 years of experience in the state.


Studies Of Antimony Occurrence With Special Relation To Its Effective Extraction, San Jose Antimony Mines, Wadley, San Luis Potosi, Mexico, J. C. Archibald Jr. Jan 1951

Studies Of Antimony Occurrence With Special Relation To Its Effective Extraction, San Jose Antimony Mines, Wadley, San Luis Potosi, Mexico, J. C. Archibald Jr.

Bachelors Theses and Reports, 1928 - 1970

The mines at San Jose which are within the Wadley unit are the largest antimony mines in Mexico. These mines produce more than half of the antimony produced by the company from its mining operations. Since the time of the author's connection with the company, a number of changes have been made in planning of development work, handling of labor, methods of mine development, cost improvement, and other problems inherent in the successful guidance of an operation.


Test 458: Mccormick Farmall Super C, Nebraska Tractor Test Lab Jan 1951

Test 458: Mccormick Farmall Super C, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 467: Oliver Row-Crop 66 Diesel, Nebraska Tractor Test Lab Jan 1951

Test 467: Oliver Row-Crop 66 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test .463 :Allis Chalmers Hd-9, Nebraska Tractor Test Lab Jan 1951

Test .463 :Allis Chalmers Hd-9, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test. 468: Minneapolis-Moline R, Nebraska Tractor Test Lab Jan 1951

Test. 468: Minneapolis-Moline R, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 462: International Td-6, Nebraska Tractor Test Lab Jan 1951

Test 462: International Td-6, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 455: Massey-Harris 55, Nebraska Tractor Test Lab Jan 1951

Test 455: Massey-Harris 55, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 454: Dodge Power Wagon T137, Nebraska Tractor Test Lab Nov 1950

Test 454: Dodge Power Wagon T137, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 454: Dodge Power Wagon T137, Nebraska Tractor Test Lab Nov 1950

Test 454: Dodge Power Wagon T137, 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 453: Allis-Chalmers Ca, Nebraska Tractor Test Lab Oct 1950

Test 453: Allis-Chalmers Ca, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 452: Massey-Harris 55 Diesel, Nebraska Tractor Test Lab Oct 1950

Test 452: Massey-Harris 55 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 451: Oliver 99, Nebraska Tractor Test Lab Sep 1950

Test 451: Oliver 99, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 451: Oliver 99, Nebraska Tractor Test Lab Sep 1950

Test 451: Oliver 99, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 450: Oliver Row Crop 88 Diesel, Nebraska Tractor Test Lab Sep 1950

Test 450: Oliver Row Crop 88 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 449: Choremaster B, Nebraska Tractor Test Lab Sep 1950

Test 449: Choremaster B, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Test 448: John Deere Mc, Nebraska Tractor Test Lab Jul 1950

Test 448: John Deere Mc, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere MC 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 447: International Td-24, Nebraska Tractor Test Lab Jun 1950

Test 447: International Td-24, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.