Engineering Commons^™

Advertising Brochure: Minneapolis-Moline Comfort Tractor, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Advertising Brochure: Allis-Chalmers , Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

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

Nebraska Tractor Tests

No abstract provided.

Advertising Brochure: Case W-9, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Measurement Of Surface Irregularities And Riding Qualities Of High Bituminous Pavements, Harvey J. Field Jr.

Kentucky Transportation Center Research Report

This report covers work completed up to the present time on the measurement of irregularities affecting the riding qualities of high type bituminous Pavements. The largest portion of this study was devoted to new construction involving Class I, Plant Mix Bituminous Concrete pavements although other roads were studied on the same basis for comparison purposes.

The purpose of the project was to evaluate the roughness characteristics of high type bituminous pavements by measuring the surface irregularities and interpreting them in terms of existing specifications. In evaluating these pavement irregularities two methods were used; one with which the surface was actually …

Some Chemical, Physical And Mineralogical Features Of Soil Colloids, James H. Havens, James L. Young Jr., William B. Drake

Kentucky Transportation Center Research Report

The -1 micron portion of several diversified soils were separated by sedimentary fractionation. Physical properties were evaluated on the -1 micron portion, the +1 micron portion, and on the original -40 sample. The -1 micron portion was analyzed for clay mineral identity by X-ray diffraction, and analyzed chemically for associated materials such as the oxides of Iron, Aluminum, Calcium, and lv!agneeium.

These data present several possibilities and trends as to the inter-dependency of the involved variables, other considerations have been devoted to the geologic origin of several samples and to various physico-chemical relationships.

Concrete Pavement Without Transverse Joints, William B. Drake

Kentucky Transportation Center Research Report

This is a report of observations and operations pertaining to a concrete pavement without the usual transverse joints constructed during the summer of 1949.

The project which is on U. S, 31-W is designated as Simpson County, FI-239 (4), and runs from Station 9+11 at the Tennessee State Line to Station 311+40 at the city limits of Franklin (See Fig. 1 for layout). It consists of a 22-foot concrete pavement underlain by 1-1/2-inches of compacted crushed limestone (Size No. 10) for insulation and leveling. The slabs are of air-entrained concrete made with the agent interground in the cement, There is …

Study Of Acid Water Conditions In Kentucky, L. E. Gregg

Kentucky Transportation Center Research Report

No abstract provided.

A Study Of The Effect Of Blended Coarse Aggregate On Air-Entrained Concrete Progress Report 3, S. T. Collier

Kentucky Transportation Center Research Report

The purpose of this investigetion was to study the durability characteristics of a river gravel, used as coarse aggregate for concrete, with respect to four major fractions separated in accordance to their general mineralogical classification. This aggregate was from the same stock of Ohio River gravel that was used in earlier phases of this Project reported in 1947.

Since this gravel consisted of several rock types varying in mineralogic constituents, it was conceivable that poor performance could possibly be attributed to some undesirable fraction or fractions, rather than to the aggregate as a whole. The separation of this aggregate was …

Special Regulations 10-120-1, 14 September 1949. Organization And Functions: Department Of The Army Intelligence Division, General Staff, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This regulation briefly gives a history of the intelligence division and outlines its function.

Erosion Of Longitudinal 40in Corrugated Metal Pipe, James H. Havens

Kentucky Transportation Center Research Report

No abstract provided.

Us Army Signal Corps Intelligence Agency, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

Historical Data Cards were used to record the organizational history of units within the Army. This card was provided to Robert Bolin by the US Army Institute of Heraldry in 1985.

The Signal Corps Intelligence Agency (SCIA) was a special-purpose military organization assigned to the Chief Signal Officer. The Chief Signal Office was the general in charge of the Army Signal Corps. The mission of the SCIA was described as “To perform the staff intelligence functions assigned by the Chief Signal Officer and to provide staff direction and coordination of the Signal Corps intelligence effort… The responsibility for the collection, …

Signal Corps Technical Intelligence, A Brief History, Chester A. Hall Capt., Robert Bolin , Depositor

United States Department of Defense Military Intelligence

At the time that this was written, technical intelligence was intelligence about foreign weapons and equipment and about organizations in foreign armies analogous to the technical services. The modern US Army vision of the technical intelligence developed during World War II. The army technical services became responsible for technical intelligence. The technical services were bureaus which supplied weapons, equipment, and services to the army, managed the careers of officers in a particular branch, trained specialists, and organized and trained special purpose military units. There were a number of technical services including the Chemical Warfare Service, the Medical Department, the Ordnance …

Cooperative Investigation Of Joint Spacing In Concrete Pavements, S. T. Collier

Kentucky Transportation Center Research Report

During the summer of 1940 the Kentucky Department of Highways, with the Public Roads Administration participating, constructed 6.27 miles of investigational pavement as a cooperative research project on joint spacing. This project was one of six planned by the Public Roads Administration and the Portland Cement Association in cooperation with six highway departments. The five other states participating were California, Michigan, Hinnesota, Missouri, and Oregon. The project selected for this jointing study in Kentucky is in Daviess County, approximately six miles southeast of Owensboro, on Kentucky Route No. 71 (Layout map in Figure 1).

The experimental program was outlined for …

Report No. 2 On A Concrete Pavement Without Transverse Joints, William B. Drake

Kentucky Transportation Center Research Report

This is a report of observations and operations pertaining to a concrete pavement without the usual transverse joints constructed during the summer of 1949.

The project which is on U.S. 31-W is designated as Simpson County, FI-239, and runs from Station 9+11 at the Tennessee State Line to Station 311+40 at the city limits of Franklin (See Fig. 1 for layout). It consists of a 22-foot concrete pavement underlain by 1-1/2-inches of compacted crushed limestone (Size No. 10) for insulation and leveling. The slabs are of air-entrained concrete made with the agent interground in the cement. There is a longitudinal …

Stabilization Studies On Soil-Cement Mixtures For Experimental Lining--Logan Experimental Section--Logan, Utah, United States Department Of The Interior, Bureau Of Reclamation

Elusive Documents

Earth Materials Laboratory Report No. EM-170 covers the laboratory tests made on one type of soil from Logan, Utah, for the purpose of using the soil in soil-cement canal lining experiments. The intention was that two types of soil would be used for experimental linings at Logan, Utah; a fine sandy soil, poorly graded with little or no silt (Classification Symbol SP) and a fine sandy soil with excess silt (Classification Symbol SF-silty). These field test sections which will provide durability and permeability information gathered under natural conditions were carried out as part of a joint lower-cost canal lining experiment …

Investigation Of Field And Laboratory Methods For Evaluating Subgrade Support In The Design Of Highway Flexible Pavements, Robert F. Baker, William B. Drake

Kentucky Transportation Center Research Report

Four different methods of evaluating subgrade support under flexible pavements were studied: (1) Field CBR; (2) North Dakota Cone; (3) Bearing Plates; and (4) Laboratory CBR.

Approximately 435 miles of flexible pavements in Kentucky were represented. The roads were selected so as to give a wide range in conditions of traffic, soil areas, and design. A total of 185 locations were investigated, and 338 cone tests, 291 field CBR's, and 117 series of plate tests were conducted. There were 178 subgrade samples for which the laboratory CBR test was conducted. Undisturbed samples for future triaxial tests were obtained at 21 …

Memo On Neoprene Rubber Joint Sealer, L. E. Gregg

Kentucky Transportation Center Research Report

No abstract provided.

Memo On Cold Applied Mastic-Type Crack And Joint Filler, L. E. Gregg

Kentucky Transportation Center Research Report

No abstract provided.

An Examination Of Equipment For Preventing Segregation In Storage Of Coarse Aggregates, S. T. Collier

Kentucky Transportation Center Research Report

This is a report of an investigation of a device developed for the purpose of reducing to a minimum the segregation of coarse aggregates during delivery from chutes or conveyors to bins and other storage or transportation facilities.

Producers and consumers are always confronted, more or less, with segregation of materials, but methods toward its elimination have been moderately successful at best. As a matter of fact, the most successful of those methods have been those that required placement and distribution of loads in bins, stockpiles, barges, and the like, rather than the use of mechanical devices for prevention of …

A Report On The Reduction Of Sphalerite Under Reduced Pressure, John H. Fuqua, William H. Magruder

Missouri School of Mines and Metallurgy Reports

During the last war, with the increased demand for magnesium metal and the general disregard for costs, a number of plants were constructed for the production of magnesium by vacuum metallurgical methods. (Both the Carbothermic Process and the Pidgeon Ferrosilicon Process employ vacuum systems for the production of metallic Mg.)

At the close of the war several of the government built plants were forced to suspend operations because of the economic impossibility of producing magnesium in competition with the Dow Chemical Company. It was with the availability of these plants in mind that experimentation with the possibilities of producing metallic …

Light Gage Steel Design Manual, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test 408: Gibson Model I, 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 …

Geologic Considerations In Relation To A Materials Survey, James L. Young Jr., L. E. Gregg

Kentucky Transportation Center Research Report

In materials surveying, geology should be of maximum benefit, not as a complete informant but as a foundation for reconnaissance, assembly, and cataloging of materials. Geology in essence is a materials survey on a grand scale. Use of this science for engineering purposes involves some primary knowledge of geologic nomenclature, the basic historic approach of geologists, and the use of resources and data published by state, federal, and private agencies over a period of 75 years.

Recognition of the need for information on surface conditions as an aid to engineering and allied sciences is emphasized; and in response to this …

Recommended Special Specification For Surfacing Materials For Signs And Markers, L. E. Gregg

Kentucky Transportation Center Research Report

This special specification supersedes all previous specifications establishing requirements for surfacing materials for vertical signs and markers as defined below. This includes all previous special and temnorary specifications and part 7.23.SB of the Department's 1945 Standard Specifications for State and Federal Road and Bridge Construction.

Test 406: John Deere R Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere R Diesel

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 423: John Deere Mt, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere MT

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 429: John Deere Ar, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere AR

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 410: Long Model A, 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 414: Ustrac Model 10-A, 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 …