Report ..., Volumes 9-17U.S. Government Printing Office, 1929 |
From inside the book
Results 1-5 of 62
Page
... humidity . 62 67 67 70 73 74 75 76 Compartment kilns for sawmill kiln - drying ...... . 80 Piling of lumber for kiln - drying ---- 86 Stickers and sticking in dry - kiln piling --- 93 Box - piling in kiln loads____ 95 Common faults in ...
... humidity . 62 67 67 70 73 74 75 76 Compartment kilns for sawmill kiln - drying ...... . 80 Piling of lumber for kiln - drying ---- 86 Stickers and sticking in dry - kiln piling --- 93 Box - piling in kiln loads____ 95 Common faults in ...
Page 29
... 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 arms are of steel and ...
... 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 arms are of steel and ...
Page 50
... humidity , which is not controlled in air - drying . The only way to reduce surface checking in the pile is to reduce the drying rate , and the practical way to do this is to reduce the air circulation by closer piling . Nor can much be ...
... humidity , which is not controlled in air - drying . The only way to reduce surface checking in the pile is to reduce the drying rate , and the practical way to do this is to reduce the air circulation by closer piling . Nor can much be ...
Page 52
... humidity in the latter part of the operation . This can be regulated so as to prevent the knots going much below the average moisture content of the rest of the board , even though it slows down the drying . In the species in which ...
... humidity in the latter part of the operation . This can be regulated so as to prevent the knots going much below the average moisture content of the rest of the board , even though it slows down the drying . In the species in which ...
Page 54
... humidity during these months . Lumber which does not complete its seasoning in the autumn usually goes over until March or April before reaching the desired condition . In the study of air seasoning of lumber in the Inland Empire there ...
... humidity during these months . Lumber which does not complete its seasoning in the autumn usually goes over until March or April before reaching the desired condition . In the study of air seasoning of lumber in the Inland Empire there ...
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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...