Report ..., المجلدات 9-17U.S. Government Printing Office, 1929 |
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الصفحة 1
... mills in the various lumber manufacturing regions ; the information used has been se- cured largely from studies made ... mill , thus indicating that the largest manufacturers were most strongly represented in the replies received . In ...
... mills in the various lumber manufacturing regions ; the information used has been se- cured largely from studies made ... mill , thus indicating that the largest manufacturers were most strongly represented in the replies received . In ...
الصفحة 2
... mill ; and at each mill a change must fit in with the individual conditions and prove itself as a part of the general practice before becoming established . The strong tendency is toward conservatism , toward continuing to do things ...
... mill ; and at each mill a change must fit in with the individual conditions and prove itself as a part of the general practice before becoming established . The strong tendency is toward conservatism , toward continuing to do things ...
الصفحة 8
... mill not due to seasoning defects . Most of the reduction in footage because of seasoning defects takes place in dressing and working , aside from the throwing away of culled boards . If the loss in footage from seasoning defects is ...
... mill not due to seasoning defects . Most of the reduction in footage because of seasoning defects takes place in dressing and working , aside from the throwing away of culled boards . If the loss in footage from seasoning defects is ...
الصفحة 9
... mills had a larger percentage of kiln - dried product than the national average , as they were mostly mills of larger than average size , the average annual production being 44,700,000 feet mill . per SEASONING OF LUMBER IN SAWMILL ...
... mills had a larger percentage of kiln - dried product than the national average , as they were mostly mills of larger than average size , the average annual production being 44,700,000 feet mill . per SEASONING OF LUMBER IN SAWMILL ...
الصفحة 10
... mill without dry kilns and air - drying the product , most of which will be later kiln - dried somewhere in factory dry kilns , is firmly estab- lished , with a very few exceptions among the leading mills , where both dry kilns and ...
... mill without dry kilns and air - drying the product , most of which will be later kiln - dried somewhere in factory dry kilns , is firmly estab- lished , with a very few exceptions among the leading mills , where both dry kilns and ...
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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...