Veneer Yield By Log Grade And Size From Black Hills Ponderosa Pine

Author : Vern P. Yerkes
Publisher : Forgotten Books
ISBN 13 : 9780483099197
Total Pages : 30 pages
Book Rating : 4.0/5 (991 download)

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Download or read book Veneer Recovery From Black Hills Ponderosa Pine (Classic Reprint) written by Vern P. Yerkes and published by Forgotten Books. This book was released on 2018-01-14 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Veneer Recovery From Black Hills Ponderosa Pine Previous research and experience indicated that tree size and knot characteristics of Black Hills ponderosa pine would limit high-volume veneer recovery from this resource to C and lower grades. It was also assumed, as Barger (1967) had found for southwestern ponderosa pine, that only the lower 16 feet of the tree stems would yield sufficient C grade veneer for production of -inch C-D grade plywood; above this height the proportion of C and better grades of veneer recovered would be insufficient to produce the required C grade face plies. Accordingly, the sample was selected from trees that could be expected to yield economi cal quantities of at least D grade veneer with a sufficient proportion of C and better grades. These trees were termed high-yield and met the following defect criteria, as judged by visual inspection. 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.