Download or read book Manual on Preservative Treatment of Wood by Pressure (Classic Reprint) written by James Donald MacLean and published by Forgotten Books. This book was released on 2017-10-30 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Manual on Preservative Treatment of Wood by Pressure When the timber is given a preliminary steaming and vacuum treatment (p. 30) the preservative is admitted at the end of the vacuum period following steaming. In case the charge has received a preliminary treatment by the Boulton or boiling -under-vacuum process (p. 49) the unfilled space at the top of the cylinder is filled with preservative and pressure is applied as soon as this conditioning process has been completed. It is impossible to remove all of the air from the wood cells regard less Oi the method Of treatment employed. For this reason even under the most favorable conditions there is some unfilled air space in the cell cavities of the treated wood after impregnation by the so called full cell process. When the full cell process is used for treatment with zinc chloride solution it is commonly called the Burnett process. 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.