Report ..., المجلدات 9-17U.S. Government Printing Office, 1929 |
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النتائج 1-5 من 64
الصفحة 14
... thicker stickers or occasional thicker courses , also wider spacing be- tween boards , and interior chimneys or tunnels . One of the most important factors in promoting seasoning in the bottom of the pile is the provision of air ...
... thicker stickers or occasional thicker courses , also wider spacing be- tween boards , and interior chimneys or tunnels . One of the most important factors in promoting seasoning in the bottom of the pile is the provision of air ...
الصفحة 34
... thickness stand- ard of 14 , 12 , or even 2 inches ; and while these thicknesses are used more for 2 - inch stock and thicker , they are employed to a con- siderable extent even in the piling of inch lumber , especially in Cali- fornia ...
... thickness stand- ard of 14 , 12 , or even 2 inches ; and while these thicknesses are used more for 2 - inch stock and thicker , they are employed to a con- siderable extent even in the piling of inch lumber , especially in Cali- fornia ...
الصفحة 35
... thickness for stickers , except that 2 of the mills make some use of 2 - inch thickness for thicker stock . The only thick- ness reported in use for western ( Pondosa ) pine is 111⁄2 inches , by 1 mill ; 9 others reported the use of ...
... thickness for stickers , except that 2 of the mills make some use of 2 - inch thickness for thicker stock . The only thick- ness reported in use for western ( Pondosa ) pine is 111⁄2 inches , by 1 mill ; 9 others reported the use of ...
الصفحة 39
... thickness of the missing sticker before striking the board below and thus can not develop very serious warp . SPECIAL PILING IN PILE BOTTOMS There has already been casual. MANUFACTURERS ' EDITION 39 Diagram of arrangement of tiers in box ...
... thickness of the missing sticker before striking the board below and thus can not develop very serious warp . SPECIAL PILING IN PILE BOTTOMS There has already been casual. MANUFACTURERS ' EDITION 39 Diagram of arrangement of tiers in box ...
الصفحة 40
... thicker stickers or wider spacing in the bottom of the pile , but it needs special attention with reference to prevailing conditions in the individual yard . It may be that in piles as taken down the moisture difference in different ...
... thicker stickers or wider spacing in the bottom of the pile , but it needs special attention with reference to prevailing conditions in the individual yard . It may be that in piles as taken down the moisture difference in different ...
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طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
air-drying air-seasoning black gum blue stain bottom brown stain Bureau California pine cents per copy chemical chestnut chimney circulation cleats Committee on Wood compartment kilns courtesy of Forest creosote crossers decay degrade develop Douglas fir dried dry-kiln Forest Products Laboratory fungi fungus grades handling heartwood heat humidity inches industry interior kiln-drying layers length load logs material method mill moisture content Nail National Committee nonutilized wood operation Photograph courtesy pieces 16 pile pipes Planer shavings Pondosa poplar practice prevent progressive kiln red gum roof sap stain sapwood sawmill seasoning shown in Figure shows side small dimension stock Sodium bicarbonate softwoods southern hardwood southern pine spacing species steam stickers storage sugar pine surface temperature tests thickness timber tion usually waste western white pine white pine width WOOD UTILIZATION y. p. Edgings y. p. Sawdust y. p. Slabs yard yellow pine zinc chloride
مقاطع مشهورة
الصفحة 8 - Board, and the Bureau of Foreign and Domestic Commerce of the Department of Commerce.
الصفحة 1 - ... preservative must displace or compress the air in the wood. After the retort is filled, additional preservative is forced into the cylinder by means of pressure pumps, the pressure being gradually raised to and maintained at 125 to 175 Ib.
الصفحة 40 - US DEPARTMENT OF AGRICULTURE. Forest Service. 1920. Timber depletion and the answer. A summary of the report on timber depletion and related subjects prepared in response to Senate Resolution 311. US Dept.
الصفحة 118 - Manual of Design and Installation of the Forest Service Water-Spray Dry Kiln. By LV Teesdale. Department of Agriculture Bulletin 894, October 18. 1920. Price, 10 cents. A good manual for this type of kiln. The Theory of Drying and its Application to the New Humidity Regulated and Recii-culating Dry Kiln.
الصفحة 10 - DC, works in close cooperation with a number of official and private organizations, notably the Bureau of Standards of the Department of Commerce and the Forest Products Laboratory of the Forest Service, Department of Agriculture.
الصفحة 51 - Commerce, comprises about 200 members representing manufacturers, distributors, and consumers of forest products. Its object Is to work for closer utilization of our country's timber resources. The committee, whose headquarters are in the Department of Commerce. Washington, DC, works in close cooperation with a number of...