Lumber Recovery From Old-Growth Coast Douglas-Fir (Classic Reprint)


Book Description

Excerpt from Lumber Recovery From Old-Growth Coast Douglas-Fir The volume of commercial Coast Douglas-fir sawtimber is estimated to be in excess of 394 billion board feet. About 10 billion board feet of Coast Douglas fir is harvested annually. This is about 55 percent of the total softwood lumber production in the United States. There is an urgent need for better methods of appraising the quality of this important timber resource. Estimates of the recovery that can be obtained from Coast Douglas-fir sawtimber are needed by forest land managers, timber buyers, and timber processors for efficient utilization of the resource for lumber, veneer, pulp, or other products. 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.







Lumber Recovery From Second-Growth Douglas-Fir (Classic Reprint)


Book Description

Excerpt from Lumber Recovery From Second-Growth Douglas-Fir Second - growth stands of Douglas - fir are producing a rapidly increasing propor tion of the commercial timber available in the Pacific Northwest. In the Coast Ranges of Oregon (fig. There are large areas of 40 to 100-year - old stands result ing from a series of large fires and exten sive early logging. Little current informa tion is available on the recovery of forest products to be expected from this resource. 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.




Lumber Recovery of Douglas-Fir From the Coast and Cascade Ranges of Oregon and Washington (Classic Reprint)


Book Description

Excerpt from Lumber Recovery of Douglas-Fir From the Coast and Cascade Ranges of Oregon and Washington Volume recovery differed by log diameter, among mills, and by the units used to measure both logs and lumber, and may differ by whether the logs are measured as they come from the woods or after they have been bucked to mill lengths. Regres sion curves of recovery ratio, lumber recovery factor, or cubic recovery percent are plotted for both woods-length and mill-length logs. The cubic recovery percent for the combined mills reached about 76 percent of thalog volume for logs greater than 20 inches. Recovery ratio ranged from 225 to 130 percent across diameter. 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.







Lumber Recovery from Large, Highly Defective, Low Grade Coast Douglas-Fir (Classic Reprint)


Book Description

Excerpt from Lumber Recovery From Large, Highly Defective, Low Grade Coast Douglas-Fir General product recovery information is presented in table 1. There was no significant relationship between percent of lumber recovery (overrun) and diameter, but there was a significant relationship between percent of lumber recovery and percent Of estimated defect. Lumber recovery percent increased as defect percent increased, indicating that recovery percent was more closely related to estimated defect than to diameter. 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.




Lumber-Grade Recovery from Oregon Coast-Type Douglas-Fir (Classic Reprint)


Book Description

Excerpt from Lumber-Grade Recovery From Oregon Coast-Type Douglas-Fir Field data were collected at the Cape Arago lumber Company saw mill at Empire, Oregon, an old type cargo mill that does not meet present day standards of mill design and operation. Hill capacity is approximately 160 thousand board feet per B-hour shift. Approx imately one-quarter of the production for a 2-weeks period was included in this study. 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.







Lumber Manufacture in the Douglas Fir Region (Classic Reprint)


Book Description

Excerpt from Lumber Manufacture in the Douglas Fir Region The purpose of this book is to present in convenient form data on the methods and costs of constructing and operating plants for the manufacture of lumber from Douglas fir in the region west of the Cascade Mountains in Oregon and Washington. Taken in connection with U.S. Department of Agriculture Bulletin No. 711, "Logging in the Douglas Fir Region," by William H. Gibbons, similar data is available on both the logging and manufacturing branches of the fir lumbering industry. The information is intended primarily for National Forest timber appraisers and other National Forest officers, for lumbermen not familiar with the manufacture of Douglas fir and for students of forestry; particular efforts have been made also to include information of value to mill architects and machinery manufacturers, as well as to the lumbermen themselves. The geographic limitations mentioned above should be kept in mind because most of the conclusions and figures are not applicable to lumber manufacture in other regions nor for other species of wood. This is to he understood in all cases whether or not it is specified that the text applies only to conditions at fir mills. The particular information of costs and other specific data subject to fluctuations with time are all as of 1916 and are published now because earlier presentation was prevented by the War. It is realized, of course, that these notes are neither flawless nor altogether complete; but they are the best available even now and furnish a reliable basis for estimates of complete operations. The variety of conditions at the many different sizes and types of mills have rendered it necessary to make the text and some of the tables directly applicable only to the average mill; so care and judgment must be used in modfying the data to meet a specific case. Most of the data is applicable to mills cutting more than 50,000 board feet of lumber per day. No attempt has been made to cover the small mills because they are relatively unimportant from the standpoint of the proportion of the product which they manufacture. Electric mills have been featured throughout because it is believed that information on mills of this character will be in greater demand as time goes on. In presenting the data an endeavor has been made to follow the natural course of the material through the various steps in the operation. 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.