Background
Francis Bacon Crocker was born on July 4, 1861 in New York City. He was the son of Henry Horace and Anne (Eldredge) Crocker.
(Vj VV? PREFACE. In presenting this second volume on the s...)
Vj VV? PREFACE. In presenting this second volume on the subject of Electric Lighting, attention is called to the fact that it relates to the conductors for transmitting and distributing the current, commonly called the distribution system, to the lamps, the supply of which is the final object of the entire system, and to the various auxiliary devices, such as switches, cut-outs, meters, etc., employed in connection with the same. In short, the present volume covers all parts of electric lighting systems outside of the generating plants, the first volume being devoted to the latter. The properties of conductors and various systems of electrical distribution, including direct current, as well as single and polyphase currents, occupy the first half of the book. Overhead and underground conductors are next discussed, and then arc lamps are treated in considerable detail, since they are important features in electric lighting, and have not been very fully treated in other publications. Interior wiring, incandescent and other forms of lamps, and finally electric meters are given considerable attention. An appendix, containing theN ational Electrical Code, and another the Report of the Committee onS tandardization are included, these being the rules which must, or at least should be, followed in constructing or operating any electrical system. In treating each branch of the subject, the principles have first been given with considerable fullness, being followed by practical examples of the prominent methods and forms of apparatus employed in actual practice. In the space available it has been impossible to go deeply into any subject, but the attempt has been made to cover the important elements and their relation, so that they may be understood and used successfully. (Typographical errors above are due to OCR software and don't occur in the book.) About the Publisher Forgotten Books is a publisher of histor
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(This book was originally published prior to 1923, and rep...)
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(Excerpt from Electric Motors: Their Action, Control and A...)
Excerpt from Electric Motors: Their Action, Control and Application The design and construction of electrical apparatus are well covered by existing literature, the books on such subjects being very numerous, and many of them are comprehensive as well as authoritative. On the other hand, the operation of electrical machinery has received comparatively little attention. This latter fact is anomalous when we consider that there are undoubtedly several hundred users for every designer or constructor of such apparatus, because each builder supplies a large number of customers. Hence the authors have endeavored to supply information that may be useful to those who operate or are interested in the operation of electric motors. Included among these are electrical engineers who install or run electric power plants, managers of manufacturing or other establishments in which electric drive is employed, as well as students and others who desire to acquaint themselves with the working of various kinds of electric motors and their application to useful purposes. The subject is necessarily technical because it involves not only the mechanical factors speed and torque but also the electrical quantities voltage, current and flux. Moreover, any or all of these five fundamental quantities may, in fact usually do, vary and are affected by other factors or conditions. Hence the problems must be analyzed and solved with thoroughness to obtain results of real value and cannot be properly treated in a popular manner. Nevertheless care has been taken to introduce and explain each step or result as clearly as possible, and to illustrate each case, when feasible, by a specific numerical example based upon standard commercial motors. The general method herein adopted is an outgrowth of the course of lectures on electric motors and their applications given in Columbia University since 1889. It is based upon the consideration of counter e.m.f. and its relation to impress…
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(This book was originally published prior to 1923, and rep...)
This book was originally published prior to 1923, and represents a reproduction of an important historical work, maintaining the same format as the original work. While some publishers have opted to apply OCR (optical character recognition) technology to the process, we believe this leads to sub-optimal results (frequent typographical errors, strange characters and confusing formatting) and does not adequately preserve the historical character of the original artifact. We believe this work is culturally important in its original archival form. While we strive to adequately clean and digitally enhance the original work, there are occasionally instances where imperfections such as blurred or missing pages, poor pictures or errant marks may have been introduced due to either the quality of the original work or the scanning process itself. Despite these occasional imperfections, we have brought it back into print as part of our ongoing global book preservation commitment, providing customers with access to the best possible historical reprints. We appreciate your understanding of these occasional imperfections, and sincerely hope you enjoy seeing the book in a format as close as possible to that intended by the original publisher.
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(This book, "Direct-current Machine Design: Being Instruct...)
This book, "Direct-current Machine Design: Being Instructions for the Design of Motors .", by Francis Bacon Crocker, is a replication of a book originally published before 1908. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.
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(This book was originally published prior to 1923, and rep...)
This book was originally published prior to 1923, and represents a reproduction of an important historical work, maintaining the same format as the original work. While some publishers have opted to apply OCR (optical character recognition) technology to the process, we believe this leads to sub-optimal results (frequent typographical errors, strange characters and confusing formatting) and does not adequately preserve the historical character of the original artifact. We believe this work is culturally important in its original archival form. While we strive to adequately clean and digitally enhance the original work, there are occasionally instances where imperfections such as blurred or missing pages, poor pictures or errant marks may have been introduced due to either the quality of the original work or the scanning process itself. Despite these occasional imperfections, we have brought it back into print as part of our ongoing global book preservation commitment, providing customers with access to the best possible historical reprints. We appreciate your understanding of these occasional imperfections, and sincerely hope you enjoy seeing the book in a format as close as possible to that intended by the original publisher.
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(Excerpt from Direct-and Alternating-Current Machine Desig...)
Excerpt from Direct-and Alternating-Current Machine Design Being Instructions for the Design of Motors and Generators This volume is especially prepared for self-instruction in the art of designing direct- and alternating-current machinery. Care has been taken to remain strictly within the province of design; the reader being assumed to possess knowledge of the principles of electricity and magnetism, and to be familiar with the theory of operation of electrical machines. The designs are carried out according to methods developed in actual practice and are supplemented by data and dimensions of lines of machines actually built by several of the largest American and European companies. The book is divided into two parts: one treating the design of direct-current machines, and the other that of alternating-current machines; each part being followed by a list of questions which clearly bring out the important points to be remembered. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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Francis Bacon Crocker was born on July 4, 1861 in New York City. He was the son of Henry Horace and Anne (Eldredge) Crocker.
He was graduated in 1882 from the School of Mines at Columbia University, and later received the degree of Ph. D.
In 1883 with Charles G. Curtis, Crocker formed the firm of Curtis & Crocker, patent attorneys and patent experts.
In 1886 the two partners established the C. & C. Electric Motor Company, from which Crocker resigned two years later to join Schuyler S. Wheeler in the formation of the Crocker-Wheeler Company, of which he remained a director throughout his life.
He remained in that work for twenty years, poor health alone causing him to retire. His directorship of the department was so successful that many of the technical schools of the United States in the organization of their electrical engineering departments followed the program first mapped out by Crocker at Columbia.
With Charles G. Curtis and Schuyler S. Wheeler he created the commercial motor of standard specification, the first of which was put into use in 1886 and which was the forerunner of all the motors now in use.
Of this motor Dr. M. I. Pupin said, “It was a wonder of efficiency for those days and for the size of the motor. It is the earliest monument to Crocker’s life-long faith that empiricism has no place in the art of designing electrical machinery”.
It is as “Father of American electrical standards” that Crocker will probably go down in engineering history. He was chairman of the committee of the American Institute of Electrical Engineers which drew up the original standardization rules for electrical apparatus, and chairman of the committee which revised them. He was also chairman of the conference of insurance and engineering representatives who formulated the National Electric Code.
To him is credited the choice of the name “henry” for the international unit of inductance, a name he chose to honor Joseph Henry of the Smithsonian Institution. In the effort to effect complete international standardization of electrical equipment he was one of the two American delegates to the International Electrotechnical Commission in London in 1906.
At its most important session he was able to insure the standardization necessary to make world-wide electrical manufacturing successful.
During the World War he was an adviser for the members of the Naval Consulting Board; he had been asked to become a member of the Board but refused because of poor health.
In 1917, in company with Peter Cooper Hewitt, he developed the first helicopter in this country which was capable of flight. So important was this invention that the government took it over and was preparing to manufacture it for use in France when the Armistice was signed.
He died on JuIy 9, 1921.
He creatied with Charles G. Curtis and Schuyler S. Wheeler of the commercial motor of standard specification, the first of which was put into use in 1886 and which was the forerunner of all the motors now in use. His brilliant work in his design of electric motors and the arc furnace and in the chemistry of the primary battery, at a time when these were virgin subjects, resulted in his selection by Columbia University to create and take charge of the department of electrical engineering. He was probably the best known of consulting inventors. In 1897-98 he was president of the American Institute of Electrical Engineers. Crocker’s researches into the problem of curvature for airplane wings were most successful, and many of his discoveries are now in every-day application. Crocker’s writings were numerous, including many papers for the scientific and technical press as well as a two-volume treatise on electric lighting. His last contribution before his death dealt with temperature rating of motors.
(Excerpt from Electric Motors: Their Action, Control and A...)
(Excerpt from Direct-and Alternating-Current Machine Desig...)
(This book was originally published prior to 1923, and rep...)
(This book was originally published prior to 1923, and rep...)
(This book was originally published prior to 1923, and rep...)
(This book was digitized and reprinted from the collection...)
(This book, "Direct-current Machine Design: Being Instruct...)
(This is a pre-1923 historical reproduction that was curat...)
(Vj VV? PREFACE. In presenting this second volume on the s...)
He was a man of many friends and his life was one of constant graciousness. At his death there was an outpouring of tributes to his memory from both industrial and scientific leaders in the electrical world.
Quotes from others about the person
Lord Kelvin said of him, “He is one of the world’s two greatest electrical engineers. ”