Background
UNWIN, William Cawthorne was born on December 12, 1838 in Coggeshall, Essex. Son of late William Jordan Unwin, Doctor of Laws, Homerton College, and Eliza Davey, daughter of John Bailey Tailer, Woodbridge.
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(This is a reproduction of a book published before 1923. T...)
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
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(This historic book may have numerous typos and missing te...)
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. 1869 Excerpt: ...stress on B 9. That on 9 7 is the sum of the horizontal components of the stresses on B 9 and 9 8. That on 8 6 is the sum of the horizontal components of the stresses on B 9, 9 8, and 8 7, and so on. If the number of bracing bars is very numerous, the stress on the booms calculated as for a plate girder is quite accurate enough for practical purposes. 74. Graphic methods of obtaining the stress in braced girders. The graphic methods already alluded to furnish in many cases the readiest means of ascertaining the stress in braced girders, but from the peculiarity in the loading at isolated and equi-distant points, it will be necessary to point out how the curves of shearing stress and bending moment can most readily be drawn. 75. Graphic representation of shearing stress for a fixed load. Take A B to represent the span, and at right angles to A B draw lines corresponding to the positions of the loads. On Fig. 56. any scale of tons, take A a equal to the reaction at A, and A b equal to the reaction at B. Beginning at a, mark off a c, cd, db, equal to the loads in the order of their distance from A. The sum of the loads is of course equal to the sum of the reactions. Through the points thus marked off, draw lines parallel to A B, to the vertical lines corresponding to each load. Thus the line from a finishes at the first load. That from c at the second, and so on. The ordinates of the stepped figure so obtained measured to A B represent the shearing force at any point of the beam. 76. Representation of maxima of shearing force during the passage of a travelling load. Take as before D C to represent the span /, and draw vertical lines corresponding to the points successively loaded by the rolling load. Let Wu W2, W&, be the magnitudes of the loads at 1, 2, a...
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(PREFACE. THE present Treatise is based on the Course of L...)
PREFACE. THE present Treatise is based on the Course of Lectures which the Council of the Society of Arts requested the Author to deliver in January and February 1893. In republishing thein under less stringent limitations of time and space many gaps have been filled up and some questions have been discussed more fully. The importance of the problem of distributing power to many consumers can hardly be overrated. In dealing with it the question of cost cannot be put on one side. The financial conditions are governing conditions, and must be considered together with the mechanical conditions. An attempt has been made in the present treatise to treat the subject as a whole. Hence the canses of waste in generating power have been discussed as well as the losses in distribution. The subject is so wide and touches so many departments of engineering that it is too much to hope that all the questions involved have been examined with sufficiently adequate knowledge. But much care has been taken to indicate what is essential in the consideration of schemes of power distribution, whatever the source from which the power is obtained and whatever the method of transmission adopted. For the rest, practical experience will gradually determine much that is at present doubtful. Tliomas Howard left a bequest to the Society of Arts, to provide for the delivel y, periodically, of courses of lectures relating to the production and use of motive power. In carrying out the duty imposed by this trust, the Society did the author the hoiiour of inviting him to give some lectures on the development of power at Central Stations, and its distribution, either as motive power for driving factories and workshops, or as energy applied to other purposes. Energy is in these lectures to be considered as a commodity, which can be manufacturecl in a convenient form, and distributed and solcl. The special problems to be dealt with are the conditions which favour tlle production of a convenient form of eneiagy, on a large scale and in the most ecoilomical wpy the means of conveying it to a distance and distributing i t t o consumers the arrangements for measuring the quantity delivered and lastfly, the relative advantages and disadvantages of a system in which energy is obtained on a large scale and distributed to many consumers, compared with a system in which each consumei produces tlle power he requires in his own locality ancl under his own supervision and responsibility. As various sources of energy are available, and as there are - several rnethods of distributing energy or means of readily obtaining energy, the inquiry is a wide one. I t may be limited B 2 I ISTRIBUTION OF POWER at once to those cases in which the final form of energy required is mechanical energy. Pressure water is a convenient source of mechanical energy, so that a water-supply system with it8 pnlnping station and distributing mains is from one point of view a central station from which energy is distributed. Bnt water-pressure systems need only be considered in these lectures SO far as they are actually used for distributing motive power. A11 electric lighting station is a central station distributing energy to many consumers...
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(This is a reproduction of a book published before 1923. T...)
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
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(The present Treatise is based on the Course of Lectures w...)
The present Treatise is based on the Course of Lectures which the Council of the Society of Arts requested the Author to deliver in January and February 1893. In republishing them under less stringent limitations of time and space many gaps have been filled up and some questions have been discussed more fully. The importance of the problem of distributing power to many consumers can hardly be overrated. In dealing with it the question of cost cannot be put on one side. The financial conditions are governing conditions, and must be considered together with the mechanical conditions. An attempt has been made in the present treatise to treat the subject as a whole. Hence the causes of waste in generating power have been discussed as well as the losses in distribution. The subject is so wide and touches so many departments of engineering that it is too much to hope that all the questions involved have been examined with sufficiently adequate knowledge. But much care has been taken to indicate what is essential in the consideration of schemes of power distribution, whatever the source from which the power is obtained and whatever the method of transmission adopted. For the rest, practical experience will gradually determine much that is at present doubtful. May, (Typographical errors above are due to OCR software and don't occur in the book.) About the Publisher Forgotten Books is a publisher of historical writings, such as: Philosophy, Classics, Science, Religion, History, Folklore and Mythology. Forgotten Books' Classic Reprint Series utilizes the latest technology to regenerate facsimiles of historically important writings. Careful attention has been made to accurately preserve the original format of each page whilst digitally enhancing the aged text. Read books online for free at www.forgottenbooks.org
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(TuE present Treatise is based on the Course of Lectures w...)
TuE present Treatise is based on the Course of Lectures which the Council of theS ociety of Arts requested tlie Author to deliver in January andF ebruary 1893. In republishing them under less stringent limitations of time and space many gaps have been filled up and some questions have been discussed moi efully. The importance of the problem of distributing power to many consumers can hardly be overrated. In dealing with it the question of cost cannot be put on one side. The financial conditions are governing conditions, and must be considered together with the mechanical conditions. An attempt has been made in the present trexitise to treat the subject as a whole. Hence the causes of waste in generating power have been discussed as well as the losses in distribution. Tlie subject is so wide and touches so many departments of engineering that it is too much to hope that all the questions involved have been examined with sufficiently adequate knowledge. But much care has been taken to indicate what is essential in the consideration of schemes of power distribution, whatever the source from which the power is obtained and whatever the method of transmission adopted. For the rest, practical experience will gradually determine much that is at present doubtful. May, (Typographical errors above are due to OCR software and don't occur in the book.) About the Publisher Forgotten Books is a publisher of historical writings, such as: Philosophy, Classics, Science, Religion, History, Folklore and Mythology. Forgotten Books' Classic Reprint Series utilizes the latest technology to regenerate facsimiles of historically important writings. Careful attention has been made to accurately preserve the original format of each page whilst digitally enhancing the aged text. Read books online for free at www.forgottenbooks.org
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UNWIN, William Cawthorne was born on December 12, 1838 in Coggeshall, Essex. Son of late William Jordan Unwin, Doctor of Laws, Homerton College, and Eliza Davey, daughter of John Bailey Tailer, Woodbridge.
Doctor of Laws Edinburgh.
Professor Emeritus Central Technical College, City and Guilds of London Institute. Honourable Life Memb. Institute.M.E.; Honourable Memb.
American Society Mechanical Engineering; Honourable Associate R. Institute British Architects.
(This book was originally published prior to 1923, and rep...)
(TuE present Treatise is based on the Course of Lectures w...)
(The present Treatise is based on the Course of Lectures w...)
(This is a pre-1923 historical reproduction that was curat...)
(This book is a replica, produced from digital images of t...)
(This is an EXACT reproduction of a book published before ...)
(This historic book may have numerous typos and missing te...)
(This is a reproduction of a book published before 1923. T...)
(This is a reproduction of a book published before 1923. T...)
(This is a reproduction of a book published before 1923. T...)
(Lang:- English, Pages 229. Reprinted in 2015 with the hel...)
(Lang:- English, Pages 207. Reprinted in 2015 with the hel...)
(Lang:- eng, Pages 360 . Reprinted in 2015 with the help o...)
(Lang:- eng, Pages 332. Reprinted in 2015 with the help of...)
(PREFACE. THE present Treatise is based on the Course of L...)
Fellow of the Royal Society. Member of Institution of Civil Engineers. Clubs: Reform, Savile.