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Reprint of the original, first published in 1881.
In 'Induction Coils, How to Make, Use, and Repair Them', H. S. Norrie delves into the technicalities of induction coils, providing a comprehensive guide on their construction, applications, and maintenance. Written in a clear and instructive tone, this book serves as a valuable resource for both amateurs and professionals in the field of electrical engineering. Norrie's precise explanations and detailed instructions make this work essential for anyone interested in understanding the inner workings of induction coils and leveraging their potential in various applications. H. S. Norrie, a renowned physicist and inventor, brings his extensive knowledge and experience to the table in 'Induction Coils'. With a background in electrical engineering, Norrie is well-equipped to elucidate complex concepts in a manner that is accessible to readers of all levels of expertise. His passion for innovation and dedication to the advancement of technology shine through in this thorough exploration of induction coils. I highly recommend 'Induction Coils, How to Make, Use, and Repair Them' to students, professionals, and enthusiasts with an interest in electrical engineering. Norrie's expertise and the comprehensive nature of the book make it a must-have for anyone looking to deepen their understanding of induction coils and enhance their practical skills in the field.
Excerpt from Induction Coils: How Made and How Used The continued demand for a manual which has so long served as a guide to the application of intensity currents, has led to this reprint of the eighth English edition of the work entitled Intensity Coils, by Dyer, under the present title. 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.
This book originally published in 1901 is the Second Edition and has been thoroughly revised and partly rewritten. Information includes, coils for gas and automobile engines, medical coils and much more. Many of the earliest books, particularly those dating back to 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original artwork and text.
The great favor with which the first edition of this little work has been received and the steadily growing interest in its subject, together with many valuable improvements and researches, may be given as the reasons for this new edition. The book has been thoroughly revised, partly rewritten, and considerable new matter, with twenty-six new illustrations, added. It has been brought up to date as far as electrical science has gone. To detail all that has been done is too great a task for a preface; we may briefly mention the following new matter: Coils for gas and automobile engines; medical coils, concise directions for operation and repairs; new forms of contact breakers, including electrolytic and mechani cal; gas-lighting apparatus; primary and secondary batteries. The chapter on X-Ray Apparatus has been entirely rewritten, and is thoroughly practical; and an entire chapter on Wireless Telegraphy has been added. In a book of this size it is not feasible to give specific directions and full dimensions for the manufacture of all the apparatus described. Indeed, much of the latter must be adapted to the particular purpose for which it is to be utilized. Again, the same amount of material will not always produce the same results. A little closer winding, greater pressure applied to the cooling wax of a condenser, and the output or capacity of either is changed. Matters purely of design or taste are to be governed by the creative faculty of the worker; but such general details and rules are given as will be sufficient to enable one possessing ordinary constructive ability to make his own apparatus. The whole process of coil-making does not require high mechanical skill, but chiefly patience and attention to details; and, perhaps best of all, but few tools are needed, all of a simple kind. We beg to acknowledge courtesies received from Messrs. Queen & Co., the Scientific American for frontispiece and Fig. 13, Mr. Goldingham's book on Oil Engines for Fig. 12, and others who have been of assistance to the author. The best American and English practice has been adopted; the American standard gauges and sizes of wires are used, except where noted. A list of works, particularly of value to the coil worker, will be found following the index. H. S. Norrie (Norman H. Schneider.) April, 1901. I - Coil Construction In commencing a description of the Ruhmkorff coil and its uses, a brief mention of the fundamental laws of induction directly bearing on its action will assist in obtaining an intelligent conception of the proper manner in which it should be constructed and handled. Any variation or cessation of a current of electricity flowing in one conductor will induce a momentary current in an adjacent conductor; and if the second conductor be an insulated wire coiled around the first conductor, also a coil of insulated wire, the effect is heightened. The intensity of the secondary or induced current increases with the number of turns of its conductor, the abruptness and com pleteness of the variation of current in the first or primary coil, and the proximity of the coils. And the insertion of a mass of soft iron within the primary coil by its consequent magnetization and demagnetization augments still further the inductive effect. There are other contributing causes which cannot be treated of here, but are of not so much importance as the foregoing.