Report ..., المجلدات 9-17U.S. Government Printing Office, 1929 |
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النتائج 1-5 من 100
الصفحة
... reduction of blue - stain damage . 26. Samples showing checking and honeycombing-27. Section of oak plank showing ... reduce end check --- 39. Dimension in large stacks , end lapped --- 40. Short lumber piled herringbone fashion without ...
... reduction of blue - stain damage . 26. Samples showing checking and honeycombing-27. Section of oak plank showing ... reduce end check --- 39. Dimension in large stacks , end lapped --- 40. Short lumber piled herringbone fashion without ...
الصفحة
... reduction of blue - stain damage_ 26. Samples showing checking and honeycombing- 27. Section of oak plank showing ... reduce end check_ . 39. Dimension in large stacks , end lapped _----- 58 59 60 60 61 61 62 63 40. Short lumber piled ...
... reduction of blue - stain damage_ 26. Samples showing checking and honeycombing- 27. Section of oak plank showing ... reduce end check_ . 39. Dimension in large stacks , end lapped _----- 58 59 60 60 61 61 62 63 40. Short lumber piled ...
الصفحة
... reduced . For this reason modern or efficient wood - utilization prac- tice must have for one of its most important parts efficient methods for the seasoning , handling , and care of lumber . In modern business to - day the old adage ...
... reduced . For this reason modern or efficient wood - utilization prac- tice must have for one of its most important parts efficient methods for the seasoning , handling , and care of lumber . In modern business to - day the old adage ...
الصفحة 3
... reduced weight , where the lumber was to be shipped by rail . Much of the common is now separated and kiln - dried to a higher moisture content , sometimes 15 per cent but quite often 18 or 20 per cent ; and a good deal of 2 - inch ...
... reduced weight , where the lumber was to be shipped by rail . Much of the common is now separated and kiln - dried to a higher moisture content , sometimes 15 per cent but quite often 18 or 20 per cent ; and a good deal of 2 - inch ...
الصفحة 5
... reduce the degrade defects such as loosening of knots and checking , which more thorough sea- soning would produce . The study by the Forest Products Labora- tory of moisture content in material for shipment showed that in dimension ...
... reduce the degrade defects such as loosening of knots and checking , which more thorough sea- soning would produce . The study by the Forest Products Labora- tory of moisture content in material for shipment showed that in dimension ...
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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...