Описание: Excerpt from French Engravers and Draughtsmen: Of the Xviiith Century In respe t to the illustrations of these final pages, special difficulties, not unforeseen, have had to be encountered. Archi te ture, Painting, or Sculpture can secure better representation in a volume of this size than can be Obtained for the art of Engraving. The reprodu tion of an engraving, even by a costly process in skilled hands, is always unsatisfactory unless carried out on the same scale as the original. Of a necessity the texture of the execution is confused by redu tion the lines, crosslines, hatchings and stipplings run together and are choked in each other so that what should be a luminous expression of form becomes a meaning less pond Of ink. AS far as possible, therefore, examples have been sele ted that could be given of their full Size. Yet in spite Of the friendly help of M. Bouchot and his staff at the Cabinet des Estampes, the equally kind services of my friends Of the Gazette des Beaux Arts and the counsels of that distinguished engraver. 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.
Описание: Excerpt from Valves and Valve-Gearing: A Practical Text-Book for the Use of Engineers, Draughtsmen, and Students The want of a second edition of this work has given occasion to correct a few errors, both in the text and illustrations. The last two years have produced little change in the design of Valve Gear. The most noticeable feature is the growing tendency to place the Corliss valve in the covers, rather than at the top and bottom of the cylinder. Messrs. Turner, of Ipswich, have dispensed with trip gear on their Corliss engines, and employ a crank shaft governor to regulate the expansion. This appears to be a step in the right direction. 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.
Описание: Excerpt from French Engravers and Draughtsmen: Of the Xviiith Century In respe t to the illustrations of these final pages, special difficulties, not unforeseen, have had to be encountered. Archi te ture, Painting, or Sculpture can secure better representation in a volume of this size than can be Obtained for the art of Engraving. The reprodu tion of an engraving, even by a costly process in skilled hands, is always unsatisfactory unless carried out on the same scale as the original. Of a necessity the texture of the execution is confused by redu tion the lines, crosslines, hatchings and stipplings run together and are choked in each other so that what should be a luminous expression of form becomes a meaning less pond Of ink. AS far as possible, therefore, examples have been sele ted that could be given of their full Size. Yet in spite Of the friendly help of M. Bouchot and his staff at the Cabinet des Estampes, the equally kind services of my friends Of the Gazette des Beaux Arts and the counsels of that distinguished engraver. 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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