Report ..., Volumes 9-17U.S. Government Printing Office, 1929 |
From inside the book
Results 1-5 of 78
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... close relations with this bureau . The committee is also receiving aid from other bureaus of the Department of Commerce , such as the Bureau of Fisheries , Bureau of Lighthouses , Coast and Geodetic Survey , Bureau of Navigation ...
... close relations with this bureau . The committee is also receiving aid from other bureaus of the Department of Commerce , such as the Bureau of Fisheries , Bureau of Lighthouses , Coast and Geodetic Survey , Bureau of Navigation ...
Page 13
... close to the surfaces of the lumber , slowing up evaporation unless it is swept away by a brisker current of air . Formerly elevated trams were constructed through the mill yard as highways for lumber movement . These favored higher ...
... close to the surfaces of the lumber , slowing up evaporation unless it is swept away by a brisker current of air . Formerly elevated trams were constructed through the mill yard as highways for lumber movement . These favored higher ...
Page 17
... close to the ground , and further handicapped by the growth of weeds . Photograph courtesy of Forest Products Laboratory bents or a little farther toward the front . Where four are used on a 16 - foot length of foundation they are often ...
... close to the ground , and further handicapped by the growth of weeds . Photograph courtesy of Forest Products Laboratory bents or a little farther toward the front . Where four are used on a 16 - foot length of foundation they are often ...
Page 30
... close together between these chimneys . This gives a positive vertical cir- culation and puts more lumber in the pile , reduces checking and also loss from blue stain , and produces a depreciation $ 2.75 per thousand feet less than that ...
... close together between these chimneys . This gives a positive vertical cir- culation and puts more lumber in the pile , reduces checking and also loss from blue stain , and produces a depreciation $ 2.75 per thousand feet less than that ...
Page 40
... close to 10 per cent may exist . Fast - drying species tend to come to a fair uniformity throughout the pile in the later stages of air drying ; with slow - drying species the time required for fair seasoning in the bottom inner portion ...
... close to 10 per cent may exist . Fast - drying species tend to come to a fair uniformity throughout the pile in the later stages of air drying ; with slow - drying species the time required for fair seasoning in the bottom inner portion ...
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Other editions - View all
Common terms and phrases
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
Popular passages
Page 8 - Board, and the Bureau of Foreign and Domestic Commerce of the Department of Commerce.
Page 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.
Page 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.
Page 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.
Page 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.
Page 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...