Report ..., Volumes 9-17U.S. Government Printing Office, 1929 |
From inside the book
Results 1-5 of 63
Page 4
... desired stage in most of the stock , the exceptional pieces will not be dry enough for use , though the average of dryness and of shipping weight will be good . This condition is probably responsible for most of the complaints of the ...
... desired stage in most of the stock , the exceptional pieces will not be dry enough for use , though the average of dryness and of shipping weight will be good . This condition is probably responsible for most of the complaints of the ...
Page 5
... desired . Common lumber moves as " air - dried " under various mois- ture contents from 12 to 25 per cent or more , and as " kiln - dried " under an even wider range of moisture content or from 6 to 25 per cent or more . In the upper ...
... desired . Common lumber moves as " air - dried " under various mois- ture contents from 12 to 25 per cent or more , and as " kiln - dried " under an even wider range of moisture content or from 6 to 25 per cent or more . In the upper ...
Page 15
... desired lumber length and spacing . Photograph 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 ...
... desired lumber length and spacing . Photograph 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 ...
Page 17
... desired . By making such a bent lower at one end for desired pitch of the pile they can be combined into a longitudinal foun- dation , two bents at the sides and one in the middle , to take movable crossers . Such bents when set for a ...
... desired . By making such a bent lower at one end for desired pitch of the pile they can be combined into a longitudinal foun- dation , two bents at the sides and one in the middle , to take movable crossers . Such bents when set for a ...
Page 18
... desired in the pile . For narrow piles two of these bents are set in the side lines of the pile ; for wider piles a third bent is placed midway of the length of the pile . Crossers are laid across these stringers to take the lumber ...
... desired in the pile . For narrow piles two of these bents are set in the side lines of the pile ; for wider piles a third bent is placed midway of the length of the pile . Crossers are laid across these stringers to take the lumber ...
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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...