UNDERGROUND TRANSMISSION AND DISTRIBUTION OF ELECTRICAL ENERGY Charles E. Phelps Vol. xxvi-1907, pp. 25-30 Classification of cable faults, followed by seven-year record of the performance of various kinds of power, telephone and telegraph cables. Brief analytical discussion of the causes and remedies for these various faults. No discussion. THE TELEPHONE WIRE PLANT Sergius P. Grace Vol. xxvi-1907, pp. 569-595 General remarks on method of laying out telephone wire plant so as to serve a growing community in the most efficient and economical manner. Details and sketch of cable terminals, wire fastenings, pole tops, etc. Discussion, pp. 596-603, by Messrs. John J. Carty, Hammond V. Hayes, G. M. Yorke, F. L. Gilman, and Kempster B. Miller. Extent of wire plant of New York Telephone Company. Stages of cable development that led up to lead covered paper insulated cable. A STUDY OF MULTI-OFFICE AUTOMATIC SWITCHBOARD TELEPHONE SYSTEMS W. Lee Campbell Vol. xxvii-1908, pp. 503-541 Comparative study of the automatic and the manual telephone systems, with respect to cost, flexibility, wire efficiency, maintenance, depreciation and business expansion. Discussion, pp. 542-551, by Messrs. A. B. Smith, John Wicks, E. A. Mellinger, Morgan Brooks, L. E. Hurtz, Samuel G. McMeen, and W. Lee Campbell. General remarks on the multi-office system for both manual and automatic telephones. Data and experience from practice with automatic sub-stations without attendants. METHODS FOR LOCATING TRANSPOSITIONS OF WIRES AND SPLIT PAIRS IN TELEPHONE AND TELEGRAPH CIRCUITS Henry W. Fisher Vol. xxvii-1908, pp. 1721-1732 Derivation of capacity formulas for locating faults due to transposition of wires. Comparison of results of tests using these formulas with actual distances. No discussion. Frank B. Jewett THE MODERN TELEPHONE CABLE Vol. xxviii-1909, pp. 1079-1093 Outline of essential requirements of telephone cables as to general construction, materials, and electrical and mechanical properties. No discussion. W. Lee Campbell A MODERN AUTOMATIC TELEPHONE APPARATUS Vol. xxix-1910 pp. 55-84 Description of the construction and mode of operation of the Strowger automatic telephone system. Discussion, pp. 85-106, by Messrs. William Maver, Ralph W. Pope, E. A. Mellinger, E. L. Lehman, Charles A. LeQuesne, Jr., A. R. Sawyer, L. C. Tomlinson, H. A. Robbins, and W. Lee Campbell. General discussion of the operative characteristics of automatic telephony, including data on cost of maintenance and depreciation. THE AUTOMATIC TELEPHONE IN RELATION TO CITY SERVICE Arthur Bessey Smith Vol. xxix-1910 pp. 1357-1378 Description of the general features of the San Francisco & Oakland automatic telephone system from the operating standpoint, with special reference to rapid-fire suburban toll service, with method of checking back; metered and pre-payment service, and inter-connection of two-wire and three-wire exchanges. Discussion, pp. 1379-1384, by Messrs. Frank F. Fowle, George D. Shepardson, L. M. Antoine, and A. B. Smith. General remarks on the advantages of the automatic telephone system. William B. Vansize A NEW PAGE PRINTING TELEGRAPH Vol. xviii-1901, pp. 7-29 Brief mention of men that have contributed to the development of printing telegraphy. Detailed description of the Murray page printer. Construction fully illustrated. Discussion, pp. 30-43, by Messrs. George T. Hanchett, William B. Vansize, Carl Hering, F. B. Herzog, F. V. Henshaw, A. C. Crehore, Hollon C. Spaulding, William Mawer, Jr., Donald Murray, and Francis W. Jones. Additional data on operation of the Murray printer. ELECTRICITY IN THE SIGNAL CORPS Lieut. Col. Samuel Reber Vol. xix-1902, pp. 707-724 Scope of the duties of the Army Signal Corps. phone construction in the field and in fortresses. Detailed description of signal apparatus used in the army. Discussion, incorporated with that of paper by Louis Bell on "Emergency Engineering for Harbor Defence." THE TELAUTOGRAPH James Dixon Vol. xxiii-1904, pp. 645-655 Description of the development, construction, operation and application of the Gray writing telegraph. Discussion, pp. 656-657, by Messrs. F. C. Bates, C. O. Mailloux, James Dixon, E. B. Fahnestock, A. C. Crehore, and Townsend Wolcott. Operation of telautograph-limiting distance, effect of line leakage and mechanical vibration. UNDERGROUND TRANSMISSION AND DISTRIBUTION OF ELECTRICAL ENERGY: Charles E. Phelps Vol. xxvi-1907 pp. 25-30 Classification of cable faults, followed by seven-year record of the performance of various kinds of power, telephone and telegraph cables. Brief analytical discussion of the causes and remedies for these various faults. No discussion. Louis M. Potts THE ROWLAND TELEGRAPHIC SYSTEM Vol. xxvi-1907, pp. 507-538 Description of the theory of operation, construction and practical application of the Rowland printing telegraph. Discussion, pp. 539-554, by Messrs. Ralph W. Pope, A. E. Kennelly, William Maver, Jr., Henry G. Stott, E. F. Northrup, Gano Dunn, and Sir William Preece. Early experiences in the telegraph field and reminiscences of Rowland, Edison and Faraday. AMERICAN TELEGRAPH ENGINEERING-NOTES ON HISTORY AND PRACTICE William Maver, Jr. and Donald McNicol Vol. xxix-1910, pp. 1303-1338 Brief historical résumé of American telegraph practice, followed by short discussion of some of the most salient features of present day practice, such as: Sources of e. m. f.; printers; super-imposed systems; inductive disturbances; testing; aerial vs. underground lines. Suggested plan for housing in telegraph lines for protection from storms. Discussion, pp. 1339-1356, by Messrs. William Maver, Jr., Ralph W. Pope, John B. Taylor, Gano Dunn, William B. Hale, G. A. Cellar, Louis M. Potts, W. J. Camp, F. W. Jones, Donald McNicol, and Charles F. Scott. Remarks on telegraph practice in United States, Mexico and Europe. Opinions as to the requirements of the ideal telegraph system. D. WIRELESS SYSTEMS ANNUAL DINNER OF AMERICAN INSTITUTE OF ELECTRICAL ENGINEERS Guest of Honor, Guglielmo Marconi Vol. xix-1902, pp. 93-121 Description of the present status of achievement with Marconi system. Evolution of the wireless from wire telegraph system explained with the help of diagrams. WIRELESS TELEGRAPHY IN THE UNITED STATES NAVY Lieut. A. M. Beecher Vol. xix-1902, pp. 569-578 Description of the general principles of wireless telegraph systems and account of what has actually been done in the navy. Discussion, incorporated with that of paper by Louis Bell on "Emergency Engineering for Harbor Defence." THE AUDION Lee DeForrest Vol. xxv-1906, pp. 735-736 Account of the inception and development of vacuum tube hot-electrode wave detector and theoretical discussion of the conduction of electricity through heated vapors and gases, with much experimental data and frequent references to the work of others. Discussion, pp. 764-779, by Messrs. Michael I. Pupin, Percy H. Thomas, Lee DeForrest, Sewall Cabot, J. B. Taylor, Edward P. Thompson, Frederick K. Vreeland, C. D. Ehret, W. E. S. Temple, H. C. Snook, E. F. Northrup, James Haywood, and George Breed. Hittorf's discovery of the effect on conduction through gases in vacuum tube of heating the electrode. Nature of ions and corpuscles. Explanation of operation of audion by accoustical theory. Analogy between audion and polariphone (electrolytic wave detector). Difference between Fleming rectifier and audion. S. M. Kintner WIRELESS TELEGRAPH RECEIVERS Vol. xxv-1906, pp. 781-787 General remarks on wave detectors invented by Professor Fessenden -hot wire and liquid barretters. No discussion. WIRELESS TELEPHONY R. A. Fessenden Vol. xxvii-1908, pp. 553-629 Brief history of the development of wireless signalling with numerous references to the original documents. Account of author's invention of wireless telephony and subsequent work. Short description of the different types of wireless telephone apparatus. Results of experiments on atmospheric absorption of waves, together with forecast of future of wireless telephony. Long account of how wireless telegraph has been hampered by governmental action. Numerous quotations. No discussion. Description of the shortcomings in present methods of teaching engineering in colleges. Outline of an ideal course in electrical engineering. Discussion, incorporated with that of paper by E. B. Raymond on "Proposed Reform in Technical Training." Charles F. Scott Vol. xxii-1903, pp. 3-15 Brief discussion of the status of the Institute. The age and occupation of its members. An outline of plans for the development of the usefulness of the Institute, and definite proposal for carrying out this work of development. No discussion. Bion J. Arnold Vol. xxiii-1904, pp. 615-623 Brief sketch of electric railway development since 1893. Present prospects of electric locomotives supplanting steam locomotives. Dividing line between steam and electric trunk line operation. Discussion, pp. 624-644, by Messrs. Charles P. Steinmetz, Gray, John Perry, B. G. Lamme, C. V. Drysdale, B. J. Arnold, F. J. Sprague, and Elihu Thomson. The requirements of different classes of railway service-city, suburban, and interurban passenger and freight trunk line, and mountain service. Speed torque characteristics of various types of railway motors, singlephase, polyphase and direct-current, and discussion of their proper spheres of application. Development and application of single-phase compensated series motor. Methods of control. Invention of the repulsion motor. |