Download or read book Yield and strength of softwood dimension lumber produced by EGAR system written by and published by . This book was released on 1977 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Yield and Strength of Softwood Dimension Lumber Produced by Egar System written by Kenneth C. Compton and published by . This book was released on 1977 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approximately 20 billion board feet of softwood dimension lumber is manufactured annually in the United States by systems that waste considerable potentially usable material in ripping and edging of cants and flitches to fixed widths. The Edge-Glue-and-Rip (EGAR) system is designed to use the full width of each flitch sawn from a log by live sawing logs, drying round-edge flitches, ripping to the widest possible usable width; edge gluing into panels 36 to 48 inches wide, and ripping the panels to final dry widths for softwood dimension lumber. A significant increase in overall yield of 10 percent was recorded for lumber produced by the EGAR system over standard lumber. It was also significantly higher in modulus of rupture than standard. EGAR lumber showed less warp and was of higher visual grade than standard lumber, but in neither case was the difference statistically significant. Data indicate that EGAR had slightly higher stiffness properties, but the difference was not significant.

Download or read book A Look at Yellow poplar for Studs written by Hiram Hallock and published by . This book was released on 1977 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: A sawing system that reduces warp may be the key to utilize yellow-poplar for studs.

Download or read book U S D A Forest Service Research Note FPL written by and published by . This book was released on 1968 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Extending Wood Supply Through Research written by Forest Products Laboratory (U.S.) and published by . This book was released on 1980 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sectioning refractory woods for anatomical studies written by Bohumil Francis Kukachka and published by . This book was released on 1977 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Publications written by Forest Products Laboratory (U.S.) and published by . This book was released on 1973 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Paper FPL RP written by and published by . This book was released on 1986 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Forest Service Research Note FPL written by and published by . This book was released on 1977 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1978 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Drying Methods on Warp and Grade of 2 by 4 s from Small diameter Ponderosa Pine written by William Turner Simpson and published by . This book was released on 2001 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two studies were performed to characterize and control warp in nominal 2- by 4-in. (standard 38- by 89-mm) dimension lumber sawn from small-diameter ponderosa pine trees. One study was conducted at a commercial sawmill with trees harvested in central Arizona. The other study was conducted at the USDA Forest Service, Forest Products Laboratory, Madison, Wisconsin, in small experimental kilns with lumber from trees harvested in central Idaho. The three main variables in the studies were top loading, presteaming, and a high-temperature kiln schedule. A limited study of hot press drying was also included. The high-temperature kiln schedule in the experimental kilns reduced drying time to about half that of the conventional temperature schedule. Press drying time was slightly more than 3 h. Crook and bow caused most of the warp and the grade loss from warp. There was no evidence that presteaming affected warp or grade loss from warp. Top loading had a modest effect in reducing warp and grade loss from warp. High-temperature drying did not affect measured warp compared with the conventional temperature schedule. Grade loss from warp was less in high-temperature than in conventional temperature dried lumber. This might be explained by differences in moisture content change during storage. Press drying did not reduce warp or grade loss from warp.

Download or read book More from Our Forested Resources written by United States. Forest Service and published by . This book was released on 1978 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Paper FPL written by and published by . This book was released on with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S D A Forest Service Research Paper FPL written by and published by . This book was released on 1968 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Accomplishments written by and published by . This book was released on 1978 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wisconsin Wood Marketing Bulletin written by and published by . This book was released on 1973 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin written by and published by . This book was released on 1980 with total page 1034 pages. Available in PDF, EPUB and Kindle. Book excerpt: