Report ..., المجلدات 9-17U.S. Government Printing Office, 1929 |
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الصفحة
... Width and spacing of lumber piles___ Experimental tests on foundations __- Pile widths and heights___ . Pile stickers , and chimneys or tunnels , and spacing between boards-- Projection of end stickers____ Side and rear spacing of ...
... Width and spacing of lumber piles___ Experimental tests on foundations __- Pile widths and heights___ . Pile stickers , and chimneys or tunnels , and spacing between boards-- Projection of end stickers____ Side and rear spacing of ...
الصفحة 13
... width of boards , it would require about 75 courses of inch lumber pile to total a million feet per acre , which ( if inch stickers were used ) would make a pile about 122 feet high . This computation includes no al- lowance for cross ...
... width of boards , it would require about 75 courses of inch lumber pile to total a million feet per acre , which ( if inch stickers were used ) would make a pile about 122 feet high . This computation includes no al- lowance for cross ...
الصفحة 22
... WIDTH AND SPACING OF LUMBER PILES A lumberyard in any case offers considerable impediment to the passage of breezes , and therefore faster drying ( and perhaps addi- tional degrade from checking ) occurs in the top of any piles built ...
... WIDTH AND SPACING OF LUMBER PILES A lumberyard in any case offers considerable impediment to the passage of breezes , and therefore faster drying ( and perhaps addi- tional degrade from checking ) occurs in the top of any piles built ...
الصفحة 24
... widths of such piles in the arrangement of pile foundations . Where special stickers are used it is possible to adopt a standard length for stickers and standard width for piles , and it facilitates the arrangement of piles in straight ...
... widths of such piles in the arrangement of pile foundations . Where special stickers are used it is possible to adopt a standard length for stickers and standard width for piles , and it facilitates the arrangement of piles in straight ...
الصفحة 25
... width upon seasoning . In the study made in the California pine and redwood region it is stated that the pine yards are mostly laid out for 16 - foot pile widths , but that in redwood continuous foundations are largely used which will ...
... width upon seasoning . In the study made in the California pine and redwood region it is stated that the pine yards are mostly laid out for 16 - foot pile widths , but that in redwood continuous foundations are largely used which will ...
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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...