Report ..., Volumes 9-17U.S. Government Printing Office, 1929 |
From inside the book
Results 1-5 of 76
Page 10
... temperatures may easily be accomplished ; and some manufacturers are successfully using a combination method of partial kiln - drying followed by yard piling and air - drying on some southern hardwoods . This plan succeeds in avoiding ...
... temperatures may easily be accomplished ; and some manufacturers are successfully using a combination method of partial kiln - drying followed by yard piling and air - drying on some southern hardwoods . This plan succeeds in avoiding ...
Page 29
... temperature and higher humidity than fresh air and consequently has a slower evaporative effect . If FIGURE 16. - Sling used in handling unit packages by cable , as seen at Weyerhaueser cargo terminal at Baltimore , Md . The three cross ...
... temperature and higher humidity than fresh air and consequently has a slower evaporative effect . If FIGURE 16. - Sling used in handling unit packages by cable , as seen at Weyerhaueser cargo terminal at Baltimore , Md . The three cross ...
Page 47
... temperatures of 140 ° to 180 ° F. previous to piling for air drying was effective in preventing stain and gave excellent ... temperature . In the National Committee on Wood Utilization's publication entitled " The Sap Stains of Wood and ...
... temperatures of 140 ° to 180 ° F. previous to piling for air drying was effective in preventing stain and gave excellent ... temperature . In the National Committee on Wood Utilization's publication entitled " The Sap Stains of Wood and ...
Page 55
... TEMPERATURE ACTIVE DRYING SEASON , 40 30 RELATIVE HUMIDITY - MA TEMPERATURE – MEAN MONT AVERAGE DRYING PERIODS FOR STOCK PILED IN DIFFERENT MONTHS AVERAGE NO . DAYS TO REACH 4 100 80 55 35 25 20 20 15 220 190 160 130 20 % MC 94 110 90 ...
... TEMPERATURE ACTIVE DRYING SEASON , 40 30 RELATIVE HUMIDITY - MA TEMPERATURE – MEAN MONT AVERAGE DRYING PERIODS FOR STOCK PILED IN DIFFERENT MONTHS AVERAGE NO . DAYS TO REACH 4 100 80 55 35 25 20 20 15 220 190 160 130 20 % MC 94 110 90 ...
Page 56
... temperature peak , except that for the redwood region , where the highest relative humidity occurs during the hottest summer period . The above examples are adequate indication that the air seasoning of lumber is largely a seasonal ...
... temperature peak , except that for the redwood region , where the highest relative humidity occurs during the hottest summer period . The above examples are adequate indication that the air seasoning of lumber is largely a seasonal ...
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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...