Author: Robison
Publisher: BoD – Books on Demand
Published: 2022-10-24
Total Pages: 109
ISBN-13: 3375123892
DOWNLOAD EBOOK →Reprint of the original, first published in 1859.
Author: John Robison
Publisher: Rarebooksclub.com
Published: 2013-09
Total Pages: 26
ISBN-13: 9781230177960
DOWNLOAD EBOOK →This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1859 edition. Excerpt: ...to prevent the penetration of rain, and the stripping by the winds. The only circumstance left in our choice in this case is the pro portion of the rafters AB and BC. Nothing is easier than making NO to CP in any desired proportion when the angle BCD is given. 27. We need not repeat that it is always a desirable thing to form a truss for a roof in such a manner that it shall be in equilibrio. When this is done, the whole force of the struts and braces which are added to it is employed in preserving this form, and no part is expended in unnecessary strains. For we must now observe, that the equilibrium of which we have been treating is always of that kind which we call the tottering, and the roof requires stays, braces, or hanging timbers, to give it stiffness, or keep it in shape. We have also said enough to enable any reader, acquainted with the most elementary geometry and mechanics, to compute the transverse strains and the thrusts to which the component parts of all roofs are exposed. 28. It only remains now to show the general maxims by which all roofs must be constructed, and the circumstances which determine their excellence. In doing this we shall be exceedingly brief, and almost content ourselves with exhibiting the principal forms, of which the endless variety of roofs are only slight modifications. We shall not trouble the reader with any account of such roofs as receive part of their support from the interior walls, but confine ourselves to the more difficult problem of throwing a roof over a wide building, without any intermediate support; because when such roofs are constructed in the best manner, that is, deriving the greatest possible strength from the materials employed, the best construction of the others is necessarily...
Author: John Robison
Publisher: Legare Street Press
Published: 2022-10-27
Total Pages: 0
ISBN-13: 9781018333762
DOWNLOAD EBOOK →This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: John Robison
Publisher: Forgotten Books
Published: 2017-07-25
Total Pages: 130
ISBN-13: 9780282596330
DOWNLOAD EBOOK →Excerpt from A Rudimentary Treatise on the Principles of Construction in the Carpentry and Joinery of Roofs 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.
Author: John Robison
Publisher: Nabu Press
Published: 2013-11
Total Pages: 124
ISBN-13: 9781293290118
DOWNLOAD EBOOK →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.