The Project Gutenberg EBook of Cyclopedia of Telephony & Telegraphy Vol. 1by Kempster Miller, George Patterson, Charles Thom, Robert Millikan,Samuel McMeenThis eBook is for the use of anyone anywhere at no cost and withalmost no restrictions whatsoever. You may copy it, give it away orre-use it under the terms of the Project Gutenberg License includedwith this eBook or online at www.gutenberg.netTitle: Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.Author: Kempster Miller George Patterson Charles Thom Robert Millikan Samuel McMeenRelease Date: April 14, 2005 [EBook #15617]Language: EnglishCharacter set encoding: ISO-8859-1*** START OF THIS PROJECT GUTENBERG EBOOK CYCLOPEDIA OF TELEPHONY 1 ***Produced by Ronald Holder and the Online DistributedProofreading Team at http://www.pgdp.net.[Transcriber's Note: References to page numbers in table of contentsand index removed, as well as the numbers themselves.][Illustration: ALEXANDER GRAHAM BELL The Inventor of the Telephone.]CyclopediaofTelephony and Telegraphy_A General Reference Work on_TELEPHONY, SUBSTATIONS, PARTY-LINE SYSTEMS, PROTECTION, MANUALSWITCHBOARDS, AUTOMATIC SYSTEMS, POWER PLANTS, SPECIALSERVICE FEATURES, CONSTRUCTION, ENGINEERING,OPERATION, MAINTENANCE, TELEGRAPHY, WIRELESSTELEGRAPHY AND TELEPHONY, ETC._Prepared by a Corps of_TELEPHONE AND TELEGRAPH EXPERTS, AND ELECTRICAL ENGINEERS OFTHE HIGHEST ...
The Project Gutenberg EBook of Cyclopedia of Telephony & Telegraphy Vol. 1
by Kempster Miller, George Patterson, Charles Thom, Robert Millikan,
Samuel McMeen
This eBook is for the use of anyone anywhere at no cost and with
almost no restrictions whatsoever. You may copy it, give it away or
re-use it under the terms of the Project Gutenberg License included
with this eBook or online at www.gutenberg.net
Title: Cyclopedia of Telephony & Telegraphy Vol. 1
A General Reference Work on Telephony, etc. etc.
Author: Kempster Miller
George Patterson
Charles Thom
Robert Millikan
Samuel McMeen
Release Date: April 14, 2005 [EBook #15617]
Language: English
Character set encoding: ISO-8859-1
*** START OF THIS PROJECT GUTENBERG EBOOK CYCLOPEDIA OF TELEPHONY 1 ***
Produced by Ronald Holder and the Online Distributed
Proofreading Team at http://www.pgdp.net.
[Transcriber's Note: References to page numbers in table of contents
and index removed, as well as the numbers themselves.]
[Illustration: ALEXANDER GRAHAM BELL The Inventor of the Telephone.]
Cyclopedia
of
Telephony and Telegraphy
_A General Reference Work on_
TELEPHONY, SUBSTATIONS, PARTY-LINE SYSTEMS, PROTECTION, MANUAL
SWITCHBOARDS, AUTOMATIC SYSTEMS, POWER PLANTS, SPECIAL
SERVICE FEATURES, CONSTRUCTION, ENGINEERING,
OPERATION, MAINTENANCE, TELEGRAPHY, WIRELESS
TELEGRAPHY AND TELEPHONY, ETC.
_Prepared by a Corps of_
TELEPHONE AND TELEGRAPH EXPERTS, AND ELECTRICAL ENGINEERS OF
THE HIGHEST PROFESSIONAL STANDING
_Illustrated with over Two Thousand Engravings_FOUR VOLUMES
CHICAGO
AMERICAN SCHOOL OF CORRESPONDENCE
1919
Authors and Collaborators
* * * * *
KEMPSTER B. MILLER. M.E.
Consulting Engineer and Telephone Expert Of the Firm of McMeen and
Miller, Electrical Engineers and Patent Experts, Chicago
American Institute of Electrical Engineers
Western Society of Engineers
GEORGE W. PATTERSON, S.B., Ph.D.
Head, Department of Electrical Engineering, University of Michigan
* * * * *
CHARLES THOM
Chief of Quadruplex Department, Western Union Main Office, New York City
ROBERT ANDREWS MILLIKAN, Ph.D.
Associate Professor of Physics, University of Chicago
Member, Executive Council, American Physical Society
* * * * *
SAMUEL G. McMEEN
Consulting Engineer and Telephone Expert Of the Firm of McMeen and
Miller, Electrical Engineers and Patent Experts, Chicago
American Institute of Electrical Engineers
Western Society of Engineers
* * * * *
LAWRENCE K. SAGER, S.B., M.P.L.
Patent Attorney and Electrical Expert
Formerly Assistant Examiner, U.S. Patent Office
GLENN M. HOBBS, Ph.D.
Secretary, American School of Correspondence
Formerly Instructor in Physics, University of Chicago
American Physical Society
* * * * *
CHARLES G. ASHLEY
Electrical Engineer and Expert in Wireless Telegraphy and Telephony * * * * *
A. FREDERICK COLLINS
Editor, _Collins Wireless Bulletin_
Author of "Wireless Telegraphy, Its History, Theory, and Practice"
FRANCIS B. CROCKER, E.M., Ph.D.
Head, Department of Electrical Engineering, Columbia University
Past-President, American Institute of Electrical Engineers
* * * * *
MORTON ARENDT, E.E.
Instructor in Electrical Engineering, Columbia University, New York
EDWARD B. WAITE
Head, Instruction Department, American School of Correspondence
American Society of Mechanical Engineers
Western Society of Engineers
* * * * *
DAVID P. MORETON, B.S., E.E.
Associate Professor of Electrical Engineering, Armour Institute of
Technology
American Institute of Electrical Engineers,
LEIGH S. KEITH, B.S.
Managing Engineer with McMeen and Miller, Electrical Engineers and
Patent Experts Chicago
Associate Member, American Institute of Electrical Engineers
* * * * *
JESSIE M. SHEPHERD, A.B.
Associate Editor, Textbook Department, American School of Correspondence
ERNEST L. WALLACE, B.S.
Assistant Examiner, United States Patent Office, Washington, D. C.
* * * * *
GEORGE R. METCALFE, M.E.
Editor, _American Institute of Electrical Engineers_
Formerly Head of Publication Department, Westinghouse Elec. & Mfg. Co.
J.P. SCHROETER
Graduate, Munich Technical School
Instructor in Electrical Engineering, American School of Correspondence
* * * * *
JAMES DIXON, E.E.
American Institute of Electrical Engineers * * * * *
HARRIS C. TROW, S.B., _Managing Editor_
Editor-in-Chief, Textbook Department, American School of Correspondence
Authorities Consulted
The editors have freely consulted the standard technical literature of
America and Europe in the preparation of these volumes. They desire to
express their indebtedness particularly to the following eminent
authorities, whose well-known works should be in the library of every
telephone and telegraph engineer.
Grateful acknowledgment is here made also for the invaluable
co-operation of the foremost engineering firms and manufacturers in
making these volumes thoroughly representative of the very best and
latest practice in the transmission of intelligence, also for the
valuable drawings, data, suggestions, criticisms, and other courtesies.
* * * * *
ARTHUR E. KENNELY, D.Sc.
Professor of Electrical Engineering, Harvard University.
Joint Author of "The Electric Telephone." "The Electric Telegraph,"
"Alternating Currents," "Arc Lighting," "Electric Heating,"
"Electric Motors," "Electric Railways," "Incandescent Lighting," etc.
HENRY SMITH CARHART, A.M., LL.D.
Professor of Physics and Director of the Physical Laboratory,
University of Michigan.
Author of "Primary Batteries," "Elements of Physics," "University
Physics," "Electrical Measurements," "High School Physics," etc.
* * * * *
FRANCIS B. CROCKER, M.E., Ph.D.
Head of Department of Electrical Engineering, Columbia University,
New York; Past-President, American Institute of Electrical Engineers.
Author of "Electric Lighting;" Joint Author of "Management of
Electrical Machinery."
* * * * *
HORATIO A. FOSTER
Consulting Engineer; Member of American Institute of Electrical
Engineers; Member of American Society of Mechanical Engineers.
Author of "Electrical Engineer's Pocket-Book."
WILLIAM S. FRANKLIN, M.S., D.Sc.
Professor of Physics, Lehigh University.
Joint Author of "The Elements of Electrical Engineering,"
"The Elements of Alternating Currents."
* * * * *
LAMAR LYNDON, B.E., M.E.
Consulting Electrical Engineer; Associate Member of American Instituteof Electrical Engineers; Member, American Electro-Chemical Society.
Author of "Storage Battery Engineering."
* * * * *
ROBERT ANDREWS MILLIKAN, Ph.D.
Professor of Physics, University of Chicago.
Joint Author of "A First Course in Physics," "Electricity, Sound and
Light," etc.
KEMPSTER B. MILLER, M.E.
Consulting Engineer and Telephone Expert; of the Firm of McMeen and
Miller, Electrical Engineers and Patent Experts, Chicago.
Author of "American Telephone Practice."
* * * * *
WILLIAM H. PREECE
Chief of the British Postal Telegraph.
Joint Author of "Telegraphy," "A Manual of Telephony," etc.--
LOUIS BELL, Ph.D.
Consulting Electrical Engineer; Lecturer on Power Transmission,
Massachusetts Institute of Technology.
Author of "Electric Power Transmission," "Power Distribution for Electric
Railways," "The Art of Illumination," "Wireless Telephony," etc.
* * * * *
OLIVER HEAVISIDE, F.R.S.
Author of "Electro-Magnetic Theory," "Electrical Papers," etc.
SILVANUS P. THOMPSON, D.Sc, B.A., F.R.S., F.R.A.S.
Principal and Professor of Physics in the City and Guilds of London
Technical College.
Author of "Electricity and Magnetism," "Dynamo-Electric Machinery,"
"Polyphase Electric Currents and Alternate-Current Motors,"
"The Electromagnet," etc.
* * * * *
ANDREW GRAY, M.A., F.R.S.E.
Author of "Absolute Measurements in Electricity and Magnetism."
ALBERT CUSHING CREHORE, A.B., Ph.D.
Electrical Engineer; Assistant Professor of Physics, Dartmouth College;
Formerly instructor in Physics, Cornell University.
Author of "Synchronous and Other Multiple Telegraphs;" Joint Author of
"Alternating Currents."
* * * * *
J. J. THOMSON, D.Sc, LL.D., Ph.D., F.R.S.
Fellow of Trinity College, Cambridge University; Cavendish Professor of
Experimental Physics, Cambridge University.
Author of "The Conduction of Electricity through Gases," "Electricityand Matter."
* * * * *
FREDERICK BEDELL, Ph. D.
Professor of Applied Electricity, Cornell University.
Author of "The Principles of the Transformer;" Joint Author of
"Alternating Currents."
DUGALD C. JACKSON, C.E.
Head of Department of Electrical Engineering, Massachusetts Institute of
Technology; Member, American Institute of Electrical Engineers, etc.
Author of "A Textbook on Electromagnetism and the Construction of Dynamos;"
Joint Author of "Alternating Currents and Alternating-Current Machinery."
* * * * *
MICHAEL IDVORSKY PUPIN, A.B., Sc.D., Ph.D.
Professor of Electro-Mechanics, Columbia University, New York.
Author of "Propagation of Long Electric Waves," and "Wave-Transmission
over Non-Uniform Cables and Long-Distance Air Lines."
FRANK BALDWIN JEWETT, A.B., Ph.D.
Transmission and Protection Engineer, with American Telephone &
Telegraph Co.
Author of "Modern Telephone Cable," "Effect of Pressure on Insulation
Resistance."
* * * * *
ARTHUR CROTCH
Formerly Lecturer on Telegraphy and Telephony at the Municipal Technical
Schools, Norwich, Eng.
Author of "Telegraphy and Telephony."
JAMES ERSKI