Report ..., Volumes 9-17U.S. Government Printing Office, 1929 |
From inside the book
Results 1-5 of 100
Page 8
... figures quoted may seem large at first glance , but this final figure of a lit- tle over $ 1 preventable seasoning loss on our entire lumber produc- tion seems well supported by such estimates of degrade losses as have been made ...
... figures quoted may seem large at first glance , but this final figure of a lit- tle over $ 1 preventable seasoning loss on our entire lumber produc- tion seems well supported by such estimates of degrade losses as have been made ...
Page 17
... Figure 6 , consisting of a heavy mudsill on which posts were erected to take the heavy cross timber on top . The foundation would be built up of two to five such bents spaced apart from front to back of the pile length , each bent to ...
... Figure 6 , consisting of a heavy mudsill on which posts were erected to take the heavy cross timber on top . The foundation would be built up of two to five such bents spaced apart from front to back of the pile length , each bent to ...
Page 19
... Figure 7 , is that it may be changed to take another length of lumber by rearranging the loose crossers on top of the stringers . In sawmill piling this is not of so great advantage , as the yard is usually laid out so that each ...
... Figure 7 , is that it may be changed to take another length of lumber by rearranging the loose crossers on top of the stringers . In sawmill piling this is not of so great advantage , as the yard is usually laid out so that each ...
Page 20
... FIGURE 8. - Foundations supported on heavy wooden blocks instead of posts or piers . Photograph courtesy of Forest Products Laboratory middle of the heavy crosser , in which case its chief purpose seems to be to afford a narrower ...
... FIGURE 8. - Foundations supported on heavy wooden blocks instead of posts or piers . Photograph courtesy of Forest Products Laboratory middle of the heavy crosser , in which case its chief purpose seems to be to afford a narrower ...
Page 26
... FIGURE 13. High piling in a western sawmill yard with a power piler or elevator . Two endless as it reverses position when going over the top , arms shown , of a form to hold the board securely The stationary arms , which are adjustable ...
... FIGURE 13. High piling in a western sawmill yard with a power piler or elevator . Two endless as it reverses position when going over the top , arms shown , of a form to hold the board securely The stationary arms , which are adjustable ...
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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...