Report, Temas1627-1640U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 1946 |
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5.5 THICKNESS AGRICULTURE IMPROVED HARVESTING antishrink efficiency applied average blanks cable casein clamps Coast Douglas-fir compreg compression curing chamber DEPARTMENT OF AGRICULTURE developed Douglas-fir E. W. Fobes EQUIPMENT SURVEY NOTES fiber Forest Products Laboratory FOREST SERVICE U. S. glue joints glue line gluing pressure HARVESTING METHODS EQUIPMENT heating Impregnated IMPROVED HARVESTING METHODS INCH STATIC UNIT Japan Karafuto kiln laminated members LAMINATIONS GRAMS logs lumber Maintained at Madison MAXIMUM UNIT STRESS METHODS EQUIPMENT SURVEY mills Modulus of elasticity Oji Paper operation paper phenol plywood poles POUNDS PER SQUARE Proportional limit stress pulpwood rayon relative humidity resorcinol sapwood SERVICE U. S. DEPARTMENT shear short tons Sitka spruce skidding species specific gravity specimens SQUARE INCH STATIC STATIC UNIT LOAD sulfite surfaces sweetgum TEMPERATURE DEGREES THICKNESS OF CUSHIONING timber tractor treatment truck UNIT LOAD MULTIPLIED urea urea resins veneer weight winch wood pulp yellow birch
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Página 37 - Where pieces of wood are coated and exposed freely to the air, a much more rapid change in consistency of the glue occurs than where the pieces are laid together as soon as the spreading has been done. The condition of free exposure is conveniently referred to as "open assembly" and the other as "closed assembly.