Report ..., Volumes 9-17U.S. Government Printing Office, 1929 |
From inside the book
Results 1-5 of 40
Page 57
... preservative treatment , while at other railroad treating plants 60 days at a favorable season of the ' year is considered sufficient on some species . The manufacturer of sawed ties is usually not directly interested , because he makes ...
... preservative treatment , while at other railroad treating plants 60 days at a favorable season of the ' year is considered sufficient on some species . The manufacturer of sawed ties is usually not directly interested , because he makes ...
Page
... preservatives . 38 Bleaching of blued wood .. 39 Longevity of blue - stain fungi in wood and the effect of heat . 39 Relation of bark beetles to sap stain .. 40 Losses due to sap stains .--- 41 Losses in log handling and storage_- 41 ...
... preservatives . 38 Bleaching of blued wood .. 39 Longevity of blue - stain fungi in wood and the effect of heat . 39 Relation of bark beetles to sap stain .. 40 Losses due to sap stains .--- 41 Losses in log handling and storage_- 41 ...
Page 38
... PRESERVATIVES The common statement , often heard , that the presence of sap stain or blue stain in the stock ... preservative treatments on account of the resistance offered to the penetration of the chemicals . The blued stock ...
... PRESERVATIVES The common statement , often heard , that the presence of sap stain or blue stain in the stock ... preservative treatments on account of the resistance offered to the penetration of the chemicals . The blued stock ...
Page 53
... preservatives . DECAY AND YARD SANITATION A large amount of the material which decays while in service has been infected while in storage . Much of this infection could be prevented by inaugurating sanitary conditions in the yards in ...
... preservatives . DECAY AND YARD SANITATION A large amount of the material which decays while in service has been infected while in storage . Much of this infection could be prevented by inaugurating sanitary conditions in the yards in ...
Page 54
... preservative or replaced by concrete , brick , or some other material not subject to decay . In sections where the humidity is high , stock should be piled 18 to 24 inches from the ground to facilitate air circulation beneath and in the ...
... preservative or replaced by concrete , brick , or some other material not subject to decay . In sections where the humidity is high , stock should be piled 18 to 24 inches from the ground to facilitate air circulation beneath and in the ...
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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...