Other editions of book A Practical Treatise On Mill-Gearing, Wheels, Shafts, Riggers, Etc: For the Use of Engineers

This book, "A practical treatise on mill-gearing, wheels, shafts, riggers", by Box, Thomas, is a replication of a book originally published before 1882. 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.

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.

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.

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.

Excerpt from A Practical Treatise on Mill-Gearing, Wheels, Shafts, Riggers, Etc: For the Use of EngineersTm: circumstances Which have led to the preparation of the following work may be briefly explained. The author was extensively engaged for many years in the practical construction of Mill-gearing; he found the existing rules for calculating the Power of Wheels and Shafts very unsatisfactory; and as to Riggers, the only known rules are of comparatively modern date, and are given in such a form as to be almost useless for practical purposes. Under these circumstances, be was led to search for Rules and to construct Tables for his own daily use, and he now gives the results to the world. It is, perhaps, necessary to say thus much, because the rules are for the most part novel, and it may be well to explain that they have not been adopted in pursuance of any favourite theory, but are the result of the inflexible teachings of a long and varied experience. For the same reason, many examples are given of Wheels, Shafts, Riggers, in practice, that the reader may see how far the rules agree therewith; in fact about one-third of the Tables in the work are devoted to that special purpose. As many of the rules were empirical, and did not admit of a theoretical demonstration, the only course open for proving their correct ness, was by giving examples of successful application.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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 historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1882 Excerpt: ...The power exerted in raising the weight B varies with every position of the crank, at F and G it is nothing, and at H and J it is greater than at B in the ratio given. The fly-wheel E equalizes these irregularities by absorbing the extra power at H and J, and giving it out again at F and G, but evidently the crank-shaft K has a greater strain upon it than the shaft L in the ratio of 1,57 to 1, and must be made stronger to resist it, although the horse-power is the same in both cases. Thus, with 100-horse engine, the shaft K has to bear a maximum strain of 157 horse-power, and if the same value of Wl were used in both cases, its diameter would have to be calculated for that power by the rules; but the usual course is to increase the multiplier in the proper ratio. (77.) With two engines coupled together by one shaft with cranks at a right angle, or 90 as usual, the strain is much less variable than with one crank, being 1 to 1,11 instead of 157, so that a single engine of 100 horse-power would require a crank-shaft equal in strength to an ordinary shaft of 157 horsepower, but two engines of the combined power of 100 horses require a shaft of 111 horse-power only. In our case Fig. 18, the strain on the piston is 113 x 20 = 2260 lbs., and the work done in one revolution is 2260 x 1 x 40 = 361,600 foot-pounds; the weight B is 2260 1"57 = 1440 lbs., and the work done in raising it is 1440 x 6 28 x 40 = 361,600 foot-pounds also. (78.) The value of M for cast-iron crank-shafts of steamengines may be taken at 400, which is the old multiplier of Buchanan, and agrees very well with general practice. Table 14 gives the particulars of crank-shafts in practice, and shows that the value of M varies with different engines by various makers, from 398 to 576 for cast i...

Excerpt from A Practical Treatise on Mill-Gearing, Wheels, Shafts, Riggers, Etc: For the Use of EngineersTm: circumstances Which have led to the preparation of the following work may be briefly explained. The author was extensively engaged for many years in the practical construction of Mill-gearing; he found the existing rules for calculating the Power of Wheels and Shafts very unsatisfactory; and as to Riggers, the only known rules are of comparatively modern date, and are given in such a form as to be almost useless for practical purposes. Under these circumstances, be was led to search for Rules and to construct Tables for his own daily use, and he now gives the results to the world. It is, perhaps, necessary to say thus much, because the rules are for the most part novel, and it may be well to explain that they have not been adopted in pursuance of any favourite theory, but are the result of the inflexible teachings of a long and varied experience. For the same reason, many examples are given of Wheels, Shafts, Riggers, in practice, that the reader may see how far the rules agree therewith; in fact about one-third of the Tables in the work are devoted to that special purpose. As many of the rules were empirical, and did not admit of a theoretical demonstration, the only course open for proving their correct ness, was by giving examples of successful application.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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 scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.

Excerpt from A Practical Treatise on Mill-Gearing, Wheels, Shafts, Riggers, Etc., For the Use of EngineersLaws governing the Driving-power of Riggers Rules and Tables for calculating the Driving-power of Riggers The General Proportions of Riggers - Number and Form of Arms.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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.

Excerpt from A Practical Treatise on Mill-Gearing, Wheels, Shafts, Riggers, Etc., For the Use of EngineersLaws governing the Driving-power of Riggers Rules and Tables for calculating the Driving-power of Riggers The General Proportions of Riggers - Number and Form of Arms.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis 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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