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| Title | Publication | Publish Year |
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Rotary Cutting: A Practical Method for Kerfless Cutting of Wood Thicker Than 1/4 Inch
The already short supply of commercially usable logs can be extended through more efficient utilization. One method is rotary knife-cutting lumber-like material up to 1/2 inch in thickness. The feasibility […]
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Forest Products Journal | 1976 |
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Rotary Veneer Cutting Characteristics of Young-Growth Redwood
An intensive study of rotary’veneer cutting of young-growth redwood was made using a research lathe. Seven variables (growth rate, heat method, heating temperature, lead, gap, clearance angle, and nosebar type) […]
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Forest Products Journal | 1969 |
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Safe Bending Radii for Curved Laminates
Investigation was conducted to determine minimum safe radii of curvature for woods commonly used in the U.S. Navy’s ship building program. Little information has been published about the ability of […]
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Forest Products Journal | 1956 |
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Saw Blade Tooth Wear Reduction By Electrically Insulating the Saw Blade
It has been demonstrated in past works that when machining green (wet) wood, electrochemical reactions occur between the cutting tool and the liquid component of the wood. This reaction is […]
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Forest Products Journal | 1984 |
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Sawdust, Bark and Other Wood Wastes for Soil Conditioning and Mulching
Adding relatively inert or slowly decomposable wood wastes to soil provides increased moisture retention, greater aeration, and better tilth. Mulches retard erosion, hinder weed emergence, and retain warmth. Residues for […]
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Forest Products Journal | 1961 |
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Sawmill Conversion Efficiency Improvement Analysis: A New Perspective
This paper presents a new perspective on sawmill conversion efficiency improvement analysis. It essentially involves evaluating potential improvements in conversion efficiency within the framework of maximizing mill profit. It requires […]
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Forest Products Journal | 1986 |
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Sawmill evaluation of a bioprotectant against moulds, stain, and decay on green lumber
Moulds, stain, and decay cause serious problems for wood utilization. Although a growing volume of wood is kiln-dried, the market for green exports remains significant, and environmentally friendly wood protection […]
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Forest Products Journal | 2004 |
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Scanner system for separate-sided lumber surface measurements
A novel scanner system is presented that is able to separately measure the surface height profile of each side of a piece of lumber while moving longitudinally in a saw […]
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Forest Products Journal | 2005 |
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Schedules for Kiln-Drying White Fir and Hemlock to the Proposed New Standards
Better and more precise kiln schedules are needed for 1-1/2 inch dimension lumber expecially the species Tsuga heterophylla, Abies amabilis, Abies procera, and Abies grandis. These species have a large […]
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Forest Products Journal | 1964 |
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Scientific Timber Quality Evaluation–A Lumber Industry ”Must”
This is a report on the scientific analysis of quality of timber stands and the logs they can produce. The objectives are to determine the probable occurrence of avoidable losses […]
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Forest Products Journal | 1959 |
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Seasonal Moisture Content of Loblolly and Slash Pine
This study was planned to determine whether the moisture content of southern pine trees varies with season of the year and, if it does, to determine the magnitude of variation […]
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Forest Products Journal | 1972 |
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Second-Growth Douglas-Fir Lumber
Presently, one-third of the Douglas-fir lumber produced is from second growth timber and this trend is expected to increase. Logs cut from stands up to 100 years old produced 65 […]
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Forest Products Journal | 1951 |
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Seedling Characteristics and Kraft Pulping Properties of Young Douglas-Fir
A kraft pulping study has been made on young Douglas-fir trees thinned from an experimental plantation. The original purpose of the plantation was to establish whether properties of mature trees […]
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Forest Products Journal | 1974 |
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Segregation of Aspen, Balsam, and Spruce Wood and Bark Chips Based on Density Differences
The in situ densities of 3/8 inch to 5/8 inch wood and bark chips of quaking aspen (Populus tremuloides), balsam fir (Abies balsamea), white spruce (Picea glauca), sugar maple (Acer […]
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Forest Products Journal | 1972 |
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Selected Physical-Mechanical Properties of Eastern Tree Barks
Knowledge of the physical and mechanical properties can greatly enhance the utilization potential of bark. In this paper, data for 19 eastern tree barks on density, shrinkage, toughness, hardness, and […]
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Forest Products Journal | 1968 |
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Selection Efficiencies of Nondestructive Strength Tests
The research explores the power of vibrational measurement of elastic modulus tests to identify wood of acceptable strength after ensuring rejection of wood of unacceptable strength. It proposes a measure […]
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Forest Products Journal | 1962 |
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Selection of Low-Strength Pieces By Nondestructive Testing: Douglas-Fir and Hem-Fir 2 By 4’s in Flexure
Several nondestructive methods for predicting modulus of rupture (MOR) were applied to four randomly selected samples of 2- by 4-inch dimension lumber. Each sample included 100 pieces of one grade […]
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Forest Products Journal | 1977 |
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Semichemical Pulping
Semichemical pulping consists of treating with a mild chemical to remove part of the lignocellulose, then refining mechanically to complete the fiber separation. Yields between 70 and 85 percent are […]
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Forest Products Journal | 1949 |
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Senarmont Compensation for Determining Fibril Angles of Cell Wall Layers
A technique is explained for determining fibril angles of the secondary wall layers of fibers. A polarizing microscope equipped with a Senarmont compensator is used to measure birefringence of the […]
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Forest Products Journal | 1966 |
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Sensitivity of the Pick Test for Field Detection of Early Wood Decay
Although the “pick test” is commonly used to detect wood decay in the field, it has not been known how advanced decay must be before it can be detected by […]
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Forest Products Journal | 1983 |
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Separation of Wood and Bark By Gyratory Screening
Bark from fir and pine which had been peeled mechanically, air-dried, and hammer-milled was screened on two different shakers with a horizontal swirling action. In every case and for every […]
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Forest Products Journal | 1972 |
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Serrated Kiln Sticks and Top Load Substantially Reduce Warp in Southern Pine Studs Dried At 240 F
Sharply toothed aluminum kiln sticks pressed into 2 by 4’s cut from veneer cores, with a clamping force of 50 to 200 pounds per stick-pair per stud, significantly reduced warp […]
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Forest Products Journal | 1974 |
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Service Life of Douglas-Fir Piles: Methods for Protecting Cutoff Tops from Decay
Various treatments for preventing decay in Douglas-fir piles were studied at an experimental plot in Corvallis, Oreg., and at a coastal marina in Brookings, Oreg. At the experimental plot, four […]
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Forest Products Journal | 1986 |
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Serviceability of Douglas-Fir Shakes After 22 Years on a Roof in Western Oregon
Shakes sawn from Douglas-fir were inspected after 22 years of service on a roof in western Oregon, an area rated intermediately favorable for decay of wood used aboveground. About 2 […]
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Forest Products Journal | 1983 |
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Shake in Coniferous Wood–An Anatomical Study
This study provides an excellent description of wood anatomy associated with ring shake. A separation between cells and the presence of loose fibers within the shake opening provides a basis […]
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Forest Products Journal | 1968 |