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Articles 193411 - 193440 of 196672

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A Study Of The Polishing Characteristics Of Limestone And Sandstone Aggregates In Regard To Pavement Slipperiness, William J. Stutzenberger, James H. Havens Jan 1958

A Study Of The Polishing Characteristics Of Limestone And Sandstone Aggregates In Regard To Pavement Slipperiness, William J. Stutzenberger, James H. Havens

Kentucky Transportation Center Research Report

The coefficient of friction on dry highway surfaces regardless of stone composition and texture has in most cases been at least 0.6 or above. However, some of these same surfaces when lubricated by a small amount of water have given test results dangerously lower. Some interesting theoretical aspects of this situation are presented here along with results from a laboratory study of the fundamental factors affecting tractive friction.

A machine is described for measuring the coefficient of friction between the plane surfaces of four-inch diameter stone specimens and a rubber annulus of slightly smaller diameter. Measurements were made both wet …


Test 636: Allis-Chalmers D-17 Diesel, Nebraska Tractor Test Lab Nov 1957

Test 636: Allis-Chalmers D-17 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: ALLIS-CHALMERS D-17 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 …


Test 630: International Td-24 Diesel, Nebraska Tractor Test Lab Nov 1957

Test 630: International Td-24 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: INTERNATIONAL TD-24 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 …


Test 634: International 330 Utility Gasoline, Nebraska Tractor Test Lab Nov 1957

Test 634: International 330 Utility Gasoline, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: INTERNATIONAL 330 UTILITY GASOLINE 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 635: Allis-Chalmers D-17 Gasoline, Nebraska Tractor Test Lab Nov 1957

Test 635: Allis-Chalmers D-17 Gasoline, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: ALLIS-CHALMERS D-17 GASOLINE 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 626: Ford 850-L, Nebraska Tractor Test Lab Nov 1957

Test 626: Ford 850-L, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: FORD 850-L 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 B: …


Test 631: Wagner Tr-9 Diesel, Nebraska Tractor Test Lab Nov 1957

Test 631: Wagner Tr-9 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: WAGNER TR-9 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 …


Test 629: International Td-18 Diesel, Nebraska Tractor Test Lab Nov 1957

Test 629: International Td-18 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: INTERNATIONAL TD-18 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 …


Test 628: Eimco 105 Diesel, Nebraska Tractor Test Lab Nov 1957

Test 628: Eimco 105 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: EIMCO 105 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 …


Test 633: Oliver Oc-15 Diesel, Nebraska Tractor Test Lab Nov 1957

Test 633: Oliver Oc-15 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: OLIVER OC-15 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 …


Test 627: Ford 640-L, Nebraska Tractor Test Lab Nov 1957

Test 627: Ford 640-L, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: FORD 640-L 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 B: …


Engineer Intelligence Guide 13, Glossary Of Natural Terrain Features, November 1957, Army Map Service, Robert Bolin , Depositor Nov 1957

Engineer Intelligence Guide 13, Glossary Of Natural Terrain Features, November 1957, Army Map Service, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

To paraphrase the introduction, this glossary of natural terrain features is intended as a reference for military personnel and others who may use terrain studies. It also many serve as a guide to producers of Engineer terrain studies by standardizing and restricting the use of technical terms. It includes terms from many fields including physical geography, geology, hydrography, galciology, botany, and pedology. This is an alphabetic list of terms keyed to three appendices. The appendices are line drawings illustrating various sorts of terrain features. Where a term is shown on one of the appendices the number of the appendix and …


Test 632: John Deere 820/830, Nebraska Tractor Test Lab Nov 1957

Test 632: John Deere 820/830, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT: John Deere 820/830 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 …


Location And Economic Study For Interstate Route Tallahassee, Wilbur Smith And Associates Nov 1957

Location And Economic Study For Interstate Route Tallahassee, Wilbur Smith And Associates

City and Regional Planning -- Florida

The basic purpose of the study was to determine the best location for the construction of an East-West section of the interstate highway. It was prescribed that the work would consist of two basic parts. One had to do with the analysis of travel data, both present and projected, in the determination of the most feasible location of a route based on conventional traffic and highway development factors. The other phase of the work was to deal with economic considerations, especially the economic impact of the proposed routes on businesses located on existing roads and on the central business district …


The East Helena Plant Of The American Smelting And Refining Company, Raymond W. White Oct 1957

The East Helena Plant Of The American Smelting And Refining Company, Raymond W. White

Bachelors Theses and Reports, 1928 - 1970

The East Helena plant of the American Smelting and Refining Company is a custom lead smelter. The chief product of the smelter is lead bullion, although by-products such as matte, speiss, cadmium-rich fumes, and zinc-rich slag are also produced. While the smelter is old, many of the methods used are new, some of which have been developed at the plant.


A Master Highway Transportation Plan For Tampa Metropolitan Area, Hillsborough County, Florida, Wilbur Smith And Associates Oct 1957

A Master Highway Transportation Plan For Tampa Metropolitan Area, Hillsborough County, Florida, Wilbur Smith And Associates

City and Regional Planning -- Florida

Fully recognizing the need for a comprehensive study of an integrated expressway and arterial highway system for the Tampa Metropolitan area, the State Road Department of Florida, jointly with the County of Hillsborough and the City of Tampa, engaged Wilbur Smith and Associates to develop a Master Highway Transportation Plan for the Tampa Area. The geographic limits of the study area are defined as the city limits of Tampa on the north, Tampa Bay on the west, Hillsborough Bay on the south, and U. S. Route 301 on the east. The development of basic planning data and necessary field studies …


An Investigation Of Compressive Testing Of Concrete, Gilbert R. Williamson Sep 1957

An Investigation Of Compressive Testing Of Concrete, Gilbert R. Williamson

Civil Engineering ETDs

The strength of most materials is affected by the rate of application of the load and concrete is no exception. However, the effect of a varying rate of loading on the compressive strength of concrete has not been too fully investigated. This effect is one of the problems covered in this paper. The first investigation along these lines was done in 1917 by Duff Abrams of the Structural Materials Research Laboratory, Lewis Institute, Chicago. In 1936, Paul G. Jones and F. E. Richart, working at the University of Illinois Engineering Experiment Station, reported the result of their experiments of the …


Us Army Ordnance Technical Intelligence Agency, Robert Bolin , Depositor Sep 1957

Us Army Ordnance Technical 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 Ordnance Technical Intelligence Agency (OTIA) was special-purpose military unit assigned to the Chief of Ordnance. The Chief of Ordnance was the general in charge of the Ordnance Corps. The OTIA was organized to perform and coordinate intelligence functions of the US Army Ordnance Corps.

The OTIA was discontinued in 1962 when most of the Army Technical Services were reorganized out of existence. The functions, personnel, records, and equipment …


Ten Rural Highway Base Stabilization Projects, James H. Havens, William B. Drake Aug 1957

Ten Rural Highway Base Stabilization Projects, James H. Havens, William B. Drake

Kentucky Transportation Center Research Report

During the last week o£ September, 1956, the Division of Rural Highways requested assistance from the Research Division in conducting a series of ten experimental base stabilization projects which were to be geared more-or-less to a practical rural roads development program in which existing soils and local granular materials might be most advantageously treated and stabilized to provide fairly low cost base courses and surfaces, adequate for light rural traffic. The idea of actually constructing a base and bituminous surface for this type of road would represent a refinement over the traditional traffic-bound base type of construction which usually serves …


Frictional Behavior Of Flat Sliding Surfaces, Elmer J. Weiter Aug 1957

Frictional Behavior Of Flat Sliding Surfaces, Elmer J. Weiter

Bachelors’ Theses

The objectives of this thesis are four in number. The first is to advance the basic understanding of the frictional behavior of materials in flat surface sliding, especially in the breakaway region where the coefficient of static friction is predominant. The second is to present an apparatus incorporating the use of flat contact surfaces, to provide accurate determination of the coefficient of static friction and some of the kinetic characteristics. The third is to establish a procedure of testing such that the static frictions is accurately analyzed to include variations with time and wear. The fourth objective is to establish …


A Method Of Developing Engineering Soil Maps For Kentucky, Robert C. Deen Aug 1957

A Method Of Developing Engineering Soil Maps For Kentucky, Robert C. Deen

Kentucky Transportation Center Research Report

No abstract provided.


Back Matter, Rocket City Astronomical Association, Space Enterprises, Inc. Jul 1957

Back Matter, Rocket City Astronomical Association, Space Enterprises, Inc.

Space Journal

No abstract provided.


Some Future Astronomical Considerations, Herman Oberth Jul 1957

Some Future Astronomical Considerations, Herman Oberth

Space Journal

No abstract provided.


An Investigation Of High-Strength, Deformed Steel Bars For Concrete Reinforcement, Sidney A. Guralnick, George Winter Jul 1957

An Investigation Of High-Strength, Deformed Steel Bars For Concrete Reinforcement, Sidney A. Guralnick, George Winter

CCFSS Library (1939 - present)

INTRODUCTION High strength steel as reinforcement for concrete has received some serious attention by researchers and by the construction industries as long ago as the early 1900' s. Recent developments abroad, notably in Sweden, Germany and Austria, have caused renewed interest in the use of this material in concrete structures. The term "high-strength" is somewhat ambiguous since it usually has been employed to describe the type of steel used in cables and strands for prestressed concrete or suspension bridge structures. Such steels commonly have proof stresses of the order of 200,000 psi. However, in the case of ordinary reinforced concrete …


The Status Of Applied Electricity In Selected Colleges And Secondary Schools In Kansas, Karl E. Cunningham Jul 1957

The Status Of Applied Electricity In Selected Colleges And Secondary Schools In Kansas, Karl E. Cunningham

Electronic Theses & Dissertations

This study was developed on the premise that applied electricity was a current and future need of such dimensions that it demanded more attention by educators. An attempt was made to determine the present status of teaching applied electricity in selected colleges and secondary schools in Kansas with a view to developing and/or improving programs in the area. Objective data were obtained by surveys of secondary school administrators, industrial arts supervisors, and instructors who taught applied electricity as a separate course or as a unit in a composite general shop. Additional information and statistics were derived from books, periodicals, published …


Outlook To Space Travel, Ernst Stuhlinger Jul 1957

Outlook To Space Travel, Ernst Stuhlinger

Space Journal

No abstract provided.


Front Matter, Rocket City Astronomical Association, Space Enterprises, Inc. Jul 1957

Front Matter, Rocket City Astronomical Association, Space Enterprises, Inc.

Space Journal

No abstract provided.


Projecting With Space Journal, B. Spencer Isbell Jul 1957

Projecting With Space Journal, B. Spencer Isbell

Space Journal

No abstract provided.


The Pioneer, Yewell Lybrand Jul 1957

The Pioneer, Yewell Lybrand

Space Journal

No abstract provided.


The Masses Of The Stars, Daniel M. Popper Jul 1957

The Masses Of The Stars, Daniel M. Popper

Space Journal

No abstract provided.