Telegraphy in the bell system

This paper on “Telegraphy in the bell system” is a companion paper for the one prepared by the representatives of the Western Union Telegraph Company on “American Telegraphy After 100 Years” and the one by representatives of the International Telephone and Telegraph Company on “Developments in the Field of Cable and Radiotelegraph Communications.” This paper reviews some of the activities in telegraphy carried on by the various units of the Bell System in connection with the furnishing of private-line telegraph and teletypewriter exchange service. Frequent reference is made to the various publications covering these activities, and only those items which have not been disclosed previously are covered in any detail.

[1]  L. Espenschied Electric Communications, the Past and Present Illuminate the Future , 1943, Proceedings of the IRE.

[2]  Harry Nyquist Certain Topics in Telegraph Transmission Theory , 1928 .

[3]  R. E. Pierce Communication by police teletypewriters , 1932, Electrical Engineering.

[4]  John H. Bell Printing Telegraph Systems , 1920, Transactions of the American Institute of Electrical Engineers.

[5]  J. Herman,et al.  Effect of signal distortion on morse telegraph transmission quality , 1929 .

[6]  R. E. Pierce Modern Practises in Private Wire Telegraph Service , 1931, Transactions of the American Institute of Electrical Engineers.

[7]  A. D. Knowlton,et al.  Switchboards and Signaling Facilities of the Teletypewriter Exchange System , 1936, Transactions of the American Institute of Electrical Engineers.

[8]  H. A. Affel,et al.  A twelve-channel carrier telephone system for open-wire lines , 1939 .

[9]  R. B. Shanck,et al.  Measurement of telegraph transmission , 1927, Journal of the A.I.E.E..

[10]  O. B. Blackwell,et al.  Carrier Current Telephony and Telegraphy , 1921, Transactions of the American Institute of Electrical Engineers.

[11]  M. E. Strieby A Million-Cycle Telephone System , 1937, Transactions of the American Institute of Electrical Engineers.

[12]  Edwin H. Colpitts Recent trends in toll transmission in the United States , 1937 .

[13]  W. A. Phelps,et al.  Voice-Frequency Carrier Telegraph System for Cables , 1925, Transactions of the American Institute of Electrical Engineers.

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[15]  R. E. Pierce,et al.  A transmission system for teletypewriter exchange service , 1936, Electrical Engineering.

[16]  John R. Carson,et al.  Theory of the transient oscillations of electrical networks and transmission systems , 1919, Proceedings of the American Institute of Electrical Engineers.

[17]  F. W. Reynolds A New Telephotograph System , 1936, Transactions of the American Institute of Electrical Engineers.

[18]  Harry Nyquist Certain Factors Affecting Telegraph Speed , 1924 .

[19]  E. F. Watson Fundamentals of teletypewriters used in the Bell System , 1938 .

[20]  W. H. Martin,et al.  Hysteresis effects with varying superposed magnetizing forces , 1921, Journal of the American Institute of Electrical Engineers.

[21]  J. T. O'Leary,et al.  An improved three-channel carrier telephone system , 1939 .

[22]  Lloyd Espenschied,et al.  Wide band transmission over coaxial lines , 1934, Electrical Engineering.

[23]  M. E. Strieby,et al.  Systems for wide-band transmission over coaxial lines , 1934 .

[24]  Bancroft Gherardi,et al.  Telephone communication system of the united states , 1930 .

[25]  A. B. Clark,et al.  Carrier in cable , 1933, Electrical Engineering.

[26]  L. A. Gardner,et al.  Polarized Telegraph Relays , 1925, Transactions of the American Institute of Electrical Engineers.

[27]  F. A. Cowan,et al.  Recent developments in the measurement of telegraph transmission , 1939 .

[28]  W. H. Martin,et al.  Key West-Havana submarine telephone cable system , 1922, Journal of the American Institute of Electrical Engineers.

[29]  A. H. Reiber Printing Telegraph Systems Applied to Message Traffic Handling , 1922, Transactions of the American Institute of Electrical Engineers.

[30]  Oliver E. Buckley The loaded submarine telegraph cable , 1925, Journal of the A.I.E.E..

[31]  Oliver E. Buckley High-speed ocean cable telegraphy , 1928 .

[32]  H. A. Affel,et al.  New Key West-Havana carrier telephone cable , 1932, Electrical Engineering.

[33]  A. L. Matte,et al.  Advances in carrier telegraph transmission , 1940 .