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Test 473: Bolens 12bb, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Development Of A Test For Rapid Determination Of Octane Ratings Of Gasolines, Charles B. Gangwer

Mechanical Engineering ETDs

For many years, the Mechanical Engineering Department of the University of New Mexico has been interested in developing a more reliable and expedient method to determine octane readings of gasolines than the conventional CFR Motor Method of Test for Knock Characteristics of Motor Fuels. A summary of the development of the conventional CFR Test method and a brief discussion of the operational procedure of this method is necessary to better understand the need for a new fuel rating procedure. To further explain the disadvantages of the conventional test method, an introduction to the new test method to be developed will …

Test 471 ; Terratrac Gt-30, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

The Design, Construction, And Calibration Of A Stationary Wave Device For Determining Sound Absorption Coefficients Of Acoustic Materials, Douglas W. Ballard

Mechanical Engineering ETDs

The general scope of the thesis investigation is limited to the engineering design and construction of a stationary-wave device for the experimental determination of the sound absorption coefficients of various building materials, the calibration of the apparatus to give comparisons with results obtained in the more expensive reverberation method, and to attempt to correlate observed results with generally accepted acoustical standards.

Development Of Electro-Mechanical Equipment For The Measurement Of Knock Characteristics Of Gasolines, Rudolph W. Ebacher

Mechanical Engineering ETDs

It was considered by the writer that characteristics of oscilloscope wave forms representing the varying pressures taking place in the CFR engine cylinder might provide an index to octane ratings of gasoline. Obtaining pressure wave forms on the oscilloscope required some medium for providing an electrical signal in response to engine cylinder pressures. A quartz pressure element was considered as the item that could fulfill this requirement.

Test 488: Cockshutt 50 *, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 472: John Deere 60, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere 60

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 472: John Deere 60 Gas, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 470: Oliver 77 Lpg, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 479: Harris Power Horse 53, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

The Effect Of Various Binders And Moisture Content On The Apparent Thermal Conductivity Of Green Foundry Sand, Robert V. Wolf

Masters Theses

"The broad field of heat transfer is well developed in its theory and mathematics, however, some few applications of varying heat transfer rates have been explored only recently.

Previous to the nineteen-thirties, foundrymen had apparently been interested in heat transfer measurements only from the standpoint of the melting of metals and the heat treatment of the finished castings, with the rate of solidification and the transfer of heat from the casting through the mold being ignored, or at least accepted as an uncontrollable factor. This does not apply, of course, to the use of metal chills to adjust solidification rates …

Photoelastic Investigation Of Notched Corners In Square Apertures In Flat Plates Subjected To Tension, Lloyd E. Byrd Jr.

Masters Theses

"Photoelastic stress analysis is one of the most effective methods available to the engineer for solving problems of stress distribution. The effect of forces, such as pressure and tension may be studied using a scale model of a structural part. Special transparent models are subjected to forces proportional to those acting on the real object. The stress problem produced in the model indicates the stress distribution through a cross-section of the structural part.

Analysis of the photographic record of the stress analysis pattern provides data with a high degree of accuracy within a relatively short time. In simple cases, this …

Nttl Engine Test 2 Petter Av2 Diesel Engine, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Engine Test 1 Petter Ava2 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test. 469: Minneapolis-Moline Bf, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test. 465: Allis-Chalmers Hd-20, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test .464: Allis-Chalmers Hd-15, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test .461: International Td-9, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 459: Mccormick Wd-6, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test .460: Mccormick Farmall Md, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

An Investigation Of The Comparative Effects Of Several Fill Materials On Heat Losses In The Ground From A Radiant Floor Panel, Peter H. Benedict

Mechanical Engineering ETDs

It was the purpose of this investigation to compare the amounts of heat lost into the ground and through the foundation walls of a small test cubicle heated by means of a radiant floor panel when the fill material under the floor slab consisted of either crushed stone, pumice aggregate, or dry-compacted soil.

Test 457: Oliver Row-Crop 77 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

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

Nebraska Tractor Tests

No abstract provided.

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 …

Highway Construction And Maintenance Equipment With Machine And Automotive Repair Shops For The Reconstruction Of The Highways Of The Iv Division, Ankara, Turkey, Steve Theodorides

Masters Theses

"With the rapid advancements being made in travel and communication facilities today, the world is steadily growing smaller and people in the far places of the world are no longer strangers.

There is no doubting the importance of tractors, dozers, scrapers, power shovels, graders, bituminus construction equipment, aggregate handling, etc., in the present-day world, in aiding the progress of civilization and bringing to all people the good things of life.

It must be remembered that money expended for highways is not wasted, and can be classified as an asset.

In substance, this is a general project for the reconstruction and …

The Effect Of Inlet Air Temperature On The Efficiency Of A Spark Ignition Engine, John B. Toomey Jr.

Masters Theses

"The object of this thesis is to determine the effect of inlet air temperature on the efficiency of an internal combustion engine. In most text books the subject is dismissed with mentioning the negative effect of warm air on the maximum output of the engine. This fact is recognized but since most engines are run at maximum output only a small percentage of the time, it would be possible to control the air temperature as the situation demanded. With the assumption that cold air could be used when full power is desired, it was decided to determine the effect of …

Air Flow Through Cloth Screening, Kurt Rauf Basakinci

Masters Theses

"The object of this investigation is to obtain an expression whereby flow of air through woven cloth can be predicted with a reasonable degree of accuracy, in terms of the pressure drop across the screen, the density, the viscosity of the air flowing; these latter properties being functions of the pressure and temperature of the air.

The development of an expression from which to predict the relationship between the air flow through a screen and the pressure drop across it without resort to experimental procedure seems to the author to be worthwhile undertaking.

The chief aim of this investigation was …

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

Nebraska Tractor Tests

No abstract provided.

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

Nebraska Tractor Tests

No abstract provided.

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

Nebraska Tractor Tests

No abstract provided.