Front matter
Reading edition
MONTHLY BULLETIN
OF THE STATE COLLEGE OF WASHINGTON PULLMAN, WASHINGTON
VOLUME IVDECEMBER, 1921NUMBER 7
The Use of Ropes and Tackle
By H. J. DANA Specialist in Experimental Engineering and W. A. PEARL Instructor in Mechanical Engineering
ENGINEERING BULLETIN NO. 8
Engineering Experiment Station H. V. CARPENTER, Director
1922
Entered as second-class matter September 5, 1919, at the postoffice at Pullman, Wash., under Act of Aug. 24, 1912
The ENGINEERING EXPERIMENT STATION of the State College of Washington was established on the authority of the act passed by the first Legislature of the State of Washington, March 28th, 1890, which established a “State Agricultural College and School of Science”, and instructed its commission “to further the application of the principles of physical science to industrial pursuits.” The spirit of this act has been followed out for many years by the Engineering Staff, which has carried on experimental investigations and published the results in the form of bulletins. The first adoption of a definite program in Engineering research, with an appropriation for its maintenance, was made by the Board of Regents, June 21st, 1911. This was followed by later appropriations. In April, 1919, this department was officially designated, Engineering Experiment Station.
The scope of the Engineering Experiment Station covers research in engineering problems of general interest to the citizens of the State of Washington. The work of the station is made available to the public through technical reports, popular bulletins, and public service. The last named includes tests and analyses of coal, tests and analyses of road materials, testing of commercial steam pipe coverings, calibration of electrical instruments, testing of strength of materials, efficiency studies in power plants, testing of hydraulic machinery, testing of small engines and motors, consultation with regard to theory and design of experimental apparatus, preliminary advice to inventors, etc.
Requests for copies of the engineering bulletins and inquiries for information on engineering and industrial problems should be addressed to Director, The Engineering Experiment Station, State College of Washington, Pullman, Washington.
The Control of the Engineering Experiment Station is vested in the Board of Regents of the State College of Washington.
BOARD OF REGENTS
Hon. Louis F. Hart, Governor of the State, Olympia
R. C. McCroskey, Garfield
Adam Duncan Dunn, Wapato
Edwin A. Ritz, Walla Walla
A. W. Davis, Spokane
J. H. Hulbert, Mt. Vernon
E. O. Holland, Secretary Ex-Officio, President State College Pullman
ENGINEERING EXPERIMENT STATION STAFF
Director, H. V. Carpenter, B. S., M. S.
Experimental Engineering, Homer J. Dana, B. S., M. S., M. E.
Electrical Applications, Philip S. Biegler, B. S., M. S., E. E.
Electrical Standardizations, Harry F. Lickey, B. S.
Automotive Engineering Aschel C. Abell, B. S.
Steam Engineering, A. R. Nottingham, M. M. E.
Mechanical Design, E. B. Parker, B. S.
Engineering Materials, G. Everett Thorton, B. S.
Gas Power, William A. Pearl, B. S.
Steam Power, Robert L. Rhoads, M. S.
Mining Engineering, Louis O. Howard, A. B., M. E.
Metallurgical Engineering, Chester G. Warfel, M. E.
Economic Geology, Olaf P. Jenkins, A. B., A. M.
Irrigation and Structures, Osmar L. Waller, Ph. B., Ph. M.
Municipal Engineering, Morris K. Snyder, B. S.
Highway Engineering, Howard E. Phelps, B. S., C. E.
Topographical Engineering, Frederic W. Welch, B. S., C. E.
Architectural Engineering, Rudolph Weaver, B. S.
Agricultural Engineering, L. J. Smith, B. S.
Physics, Brenton L. Steele, B. A., M. A.
Chemical Engineering, Clare Chrisman Todd, B. S., Ph. D.
TABLE OF CONTENTS
LIST OF ILLUSTRATIONS 5
SOURCES OF MATERIAL 7
INTRODUCTION 8
KNOTS 9
SPLICES 25
HITCHES 28
LASHINGS 43
TACKLE SETS 45
HOISTS 53
TRANSMISSION CABLES 55
TEXTILE ROPE DATA 57
WIRE ROPE DATA 58
SPLICING TRANSMISSION CABLES 62
POWER TRANSMISSION TABLES 66
LIST OF ENGINEERING BULLETINS 68