Report ..., Volumes 9-17U.S. Government Printing Office, 1929 |
From inside the book
Results 1-5 of 100
Page 15
... courtesy of Forest Products Laboratory FIGURE 3. - An old foundation at the right , of a type now being replaced by the im- proved foundation at the left , giving more ventilation under the piles . Photo- graph courtesy of Forest ...
... courtesy of Forest Products Laboratory FIGURE 3. - An old foundation at the right , of a type now being replaced by the im- proved foundation at the left , giving more ventilation under the piles . Photo- graph courtesy of Forest ...
Page 16
... courtesy of Forest Products Laboratory draw up a good deal of moisture through their roots and evaporate it through their leaves , thus adding to air moisture . Figure 5 shows piles too low and growth of weeds . A considerable number of ...
... courtesy of Forest Products Laboratory draw up a good deal of moisture through their roots and evaporate it through their leaves , thus adding to air moisture . Figure 5 shows piles too low and growth of weeds . A considerable number of ...
Page 17
... 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 spaced 6-4-6 feet , or sometimes with the 4 - foot spacing at the front , because ...
... 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 spaced 6-4-6 feet , or sometimes with the 4 - foot spacing at the front , because ...
Page 19
... courtesy of Forest Products Laboratory the number of crossers required , unless two lines of stickers are started on a single foundation crosser and separated gradually to get the required spacing . In more than half the reports ...
... courtesy of Forest Products Laboratory the number of crossers required , unless two lines of stickers are started on a single foundation crosser and separated gradually to get the required spacing . In more than half the reports ...
Page 20
... courtesy of Forest Products Laboratory middle of the heavy crosser , in which case its chief purpose seems to be to afford a narrower surface contact with the board and thus have less retardant effect on its seasoning . Before leaving ...
... courtesy of Forest Products Laboratory middle of the heavy crosser , in which case its chief purpose seems to be to afford a narrower surface contact with the board and thus have less retardant effect on its seasoning . Before leaving ...
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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...