Excerpt from The Open-Tank Method for the Treatment of Timber The former theory of the process held that the hot preservative converted the moisture in the wood into steam and so expelled a large percentage of it, and that the cold bath condensed the steam in the pores of the wood and so formed a vacuum into which the preserva tive was forced by atmospheric pressure. In this way it was thought that the timber became seasoned just before or simultaneously with the entrance of the preservative. From this theory it also followed that green timber containing a large amount of moisture could be. Given a better treatment than seasoned timber, since the greater the amount of moisture in the wood the greater would be the vacuum formed when the vapor is driven off. 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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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.

Excerpt from Test of Methods of Protecting Woods Against Termites or White Ants: A Progress Report The most effective preservative in protecting timber to be set in the ground from attack by termites is coal tar creosote. The length of service required must determine whether the method is to be a superficial treatment or a more costly but permanent impregnation. Impregnation by the open-tank method with coal-tar creosote renders wood resistant to attack by termites for at least 15 years. Impregnation by the full - cell process with coal-tar creosote renders wood resistant for at least 25 years. This method is recommended for wood to be exported for use In tropical countries. 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.

Excerpt from The Preservation of Timber by the Use of Antiseptics It is proposed in the present paper, to give a short account of the history and development of the use of antiseptics for preventing the decay of timber. A reference to the processes employed in coal-tar distillation Will be pertinent to the subject, in so far as it Will indicate What are and have been the usual con stituents of the tar oils used for inject ing wood. The author proposes to add some results derived from his thirty-four years' experience in connection With this group of manufactures, together With the outcome of some research, and of a num ber of experiments specially undertaken With a view to the elucidation of ques tions referred to in the paper. 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.