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Transactions of the American Institute of Electrical Engineers

Issue 1 • Jan. 1919

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Displaying Results 1 - 25 of 31
  • [Breaker page]

    Publication Year: 1919, Page(s): nil1
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    Freely Available from IEEE
  • [Breaker page]

    Publication Year: 1919, Page(s): nil2
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  • Officers and Board of Directors 1918-1919

    Publication Year: 1919
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  • Standing Committees

    Publication Year: 1919, Page(s):ii - v
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  • Institute representatives

    Publication Year: 1919, Page(s): vi
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  • Contents

    Publication Year: 1919, Page(s):vii - viii
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  • Aeronautics in the United States, 1918

    Publication Year: 1919, Page(s):1 - 62
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    Major General George O. Squier, Chief Signal Officer of the United States Army, reviews in this address the development of Military Aeronautics in the United States up to the date of the armistice, 11 November 1918. The US War Department's first heavier-than-air flying machine was produced approximately ten years ago, but for the eight years that followed, the development lagged - in fact less tha... View full abstract»

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  • Welding Mild Steel

    Publication Year: 1919, Page(s):63 - 111
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    The probability that welding could, with advantage, be more widely used in ship construction than had heretofore been the case, led to the formation, in 1917, of a Welding Committee, which at first was conducted under the auspices of the Standards Committee of the Institute. The Welding Research Sub-Committee, formed in 1918, was a sub-committee of the Metallurgical and Electrical Sections of the ... View full abstract»

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  • Welding as a Process in Ship Construction

    Publication Year: 1919, Page(s):113 - 119
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    The paper points to the necessity for a reduetion in the cost of shipbuilding, and as riveting is one of the most expensive items of construction the substitution of welding for riveting would decrease the cost of construction considerably. A brief review is given of what has been done in substituting welding for riveting, and to the limited extent to which electric welding has been tried it has b... View full abstract»

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  • Fusion in Arc Welding

    Publication Year: 1919, Page(s):121 - 177
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (10345 KB)

    Although welding literature is replete with discussions of applications, little information is available descriptive either of non-destructive inspection methods or of the process of metallic electrode are welding. This paper calls attention to such characteristics as penetration and overlap, peculiar to this process, which facilitate visual inspection and discusvses briefly the effect of are leng... View full abstract»

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  • Engineering and Industrial Standardization

    Publication Year: 1919, Page(s):179 - 189
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  • The General Equations of the Electric Circuit-III

    Publication Year: 1919, Page(s):191 - 260
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5719 KB)

    In the usual theory of transients the assumption is made, that resistance, inductance, capacity and conductance are constant. This however, is not correct, and as the result thereof, it was not possible to theoretically investigate, and numerically calculate the dissipation of high-frequency disturbances, the flatening of the wave fronts of impulses, the rounding off of steep waves, etc., with the... View full abstract»

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  • Review of Work of Sub-Committee on Wave Shape Standard of the Standards Committee

    Publication Year: 1919, Page(s):261 - 303
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5372 KB)

    The paper gives a review of the work donie during the past three years by a sub-committee of the Standards Committee of the Institute appointed to make recommendations for changes in the Institute's ruiles regarding the wave shape of alternators. After a very careful consideration of the question and a large amount of experimental work the Sub-Committee last spring made recommendations that for th... View full abstract»

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  • Radio Telephony

    Publication Year: 1919, Page(s):305 - 343
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (10291 KB)

    This paper is divided into two parts. The first part describes the development of the art of radio telephony by the American Telephone and Telegraph Company and the Western Electric Company to the accomplishment of Trans-Atlantic telephony, followed by demonstrations of the use of radio telephony between ships and of methods of connecting radio and wire telephone systems. This first part covers wo... View full abstract»

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  • Theory of the Transient Oscillations of Electrical Networks and Transmission Systems

    Publication Year: 1919, Page(s):345 - 427
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5733 KB)

    The purpose of this research was to make a broad theoretical study of transient phenomena with a view to developing methods of calculation directly applicable to engineering problems. The investigation starts with the problem of formulating the current in an electrical network or transmission system in response to a suddenly applied e.m.f. of arbitrary form. A simple formula is derived which expre... View full abstract»

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  • Telephone Circuits with Zero Mutual Induction

    Publication Year: 1919, Page(s):429 - 488
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    The paper deals with the reduction of inductive interference in telephone circuits. Various relative positions of two or more circuits, in which the mutual inductance is zero, and the mutual capacitance unbalance is approximately zero, are discussed. The most important case is that when the two wires of one circuit occupy opposite ends of one diagonal of a square, and the other circuit, the ends o... View full abstract»

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  • Ionization of Occluded Gases in High-Tension Insulation

    Publication Year: 1919, Page(s):489 - 536
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3990 KB)

    This paper deals with the ionization of occluded gases in solid insulation from the standpoint that these gas spaces are the weakest part of an insulation design and should receive first consideration. The stress at which ionization starts in different types of built-up insulation, such as used in cables and coils, is measured and from these measurements a safe working stress determined. The paper... View full abstract»

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  • The Dielectric Strength of Air Films Entrapped in Solid Insulation and a Practical Application of the Problem for Alternator Coils and Cables

    Publication Year: 1919, Page(s):537 - 575
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3739 KB)

    It is of theoretical importance, as well as of practical importance in design, to be able to predetermine the dielectric strength of air films or bubbles entrapped in solid insulation. If such films are over-stressed the solid insulation may be damaged by chemical action, local heating, mechanical action etc., due to corona. An experimental investigation was made of the strength of air films of va... View full abstract»

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  • Abnormal Voltages within Transformers

    Publication Year: 1919, Page(s):577 - 620
    Cited by:  Papers (46)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3813 KB)

    Mathematical analysis is made of a rectangular wave impinging upon a transformer winding and quantitative values deduced of the resulting internal voltage stresses in terms of transformer constants. It is shown that the conclusions also apply in part to abrupt impulses and approximate idea is given of the reaction of a transformer to high frequencies. The difference between operating transformer w... View full abstract»

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  • Some Possibilities of Steam Railroad Electrification as Affecting Future Policies

    Publication Year: 1919, Page(s):621 - 649
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    Electricity fills every requirement of railroad service, but as it involves a large investment, electrification has proceeded slowly. Electrification has also been retarded because the problem has been largely considered one of replacing the steam locomotive by the electric locomotive whereas in reality the problem is much broader. It really offers a fundamentally different method of train propuls... View full abstract»

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  • Electromagnetic Theory of the Telephone Receiver

    Publication Year: 1919, Page(s):651 - 699
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3772 KB)

    The theory of the telephone receiver here offered is based upon the motional impedance circle which has been published in various chapters during the last few years. The new theory, which is stated under definite limitations, is a further development; taking into account the m. m. f. produced by the vibration of the diaphragm in the permanent magnetic field. The motional power is thus shown to be ... View full abstract»

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  • The Absolute Measurement of the Intensity of Sound

    Publication Year: 1919, Page(s):701 - 723
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    This paper includes a description of a series of acoustical researches extending over a period of twenty-eight years. The properties of vibrating bodies and the subject of elastic hysteresis are discussed. Two fundamentally important instruments for the absolute measurement of sound have been developed and the theory given. The first is the standard of sound, called the phone, which is capable of ... View full abstract»

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  • Present Status of Industrial Lighting Codes

    Publication Year: 1919, Page(s):725 - 765
    Cited by:  Papers (1)
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    In order to protect workers from accident and eye-strain, industrial lighting codes have been adopted in four states and in Federal establishments. Similar action is under consideration in several other states and there is prospect of extension through-out the country. Investigation and experience indicate the need of government regulation of factory lighting. When adopted by industrial commission... View full abstract»

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  • Utilizing the Time Characteristics of Alternating Current

    Publication Year: 1919, Page(s):767 - 781
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    By the invention of a very small, simple and reliable self-starting synchronous motor, in conjunction with convenient means for regulating the average frequency of an alternating circuit, there has been developed a new field of usefulness for electric power. It is now feasible to drive all kinds of timing devices such as clocks, graphic instrument movements, time recorders, etc., directly from the... View full abstract»

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  • Cooperation

    Publication Year: 1919, Page(s):783 - 793
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