Report ..., Volumes 9-17U.S. Government Printing Office, 1929 |
From inside the book
Results 6-10 of 100
Page 8
... species have shown degrade losses of less than $ 1 on some common grades , spread upon the entire production of that grade concerned in the tests ; but in other items degrade losses have been so estimated running up to more than $ 11 ...
... species have shown degrade losses of less than $ 1 on some common grades , spread upon the entire production of that grade concerned in the tests ; but in other items degrade losses have been so estimated running up to more than $ 11 ...
Page 9
... species who are using these better methods whose more general adoption it is the chief purpose of this report to encourage . The questionnaires sent to lumber manufacturers brought replies from mills reporting an annual production of ...
... species who are using these better methods whose more general adoption it is the chief purpose of this report to encourage . The questionnaires sent to lumber manufacturers brought replies from mills reporting an annual production of ...
Page 10
... species where kiln - drying must be done very slowly to avoid damage to the stock the advantage in cost over air - drying is reduced or reversed . The kiln - drying difficulties mostly appear in drying from a green condi- tion to 40 per ...
... species where kiln - drying must be done very slowly to avoid damage to the stock the advantage in cost over air - drying is reduced or reversed . The kiln - drying difficulties mostly appear in drying from a green condi- tion to 40 per ...
Page 14
... species which dry more slowly , while crowding is more noticeable in the species that are easier to air season . The difference in yard sites and layouts often accounts for differ- ences of seasoning efficiency . Damage occurs to the ...
... species which dry more slowly , while crowding is more noticeable in the species that are easier to air season . The difference in yard sites and layouts often accounts for differ- ences of seasoning efficiency . Damage occurs to the ...
Page 20
... species , ex- cept that it was not reported for either red wood or western pine . In some cases this strip , instead of being renewed at each new piling , is used as long as it remains bright and sometimes is nailed along the FIGURE 8 ...
... species , ex- cept that it was not reported for either red wood or western pine . In some cases this strip , instead of being renewed at each new piling , is used as long as it remains bright and sometimes is nailed along the FIGURE 8 ...
Contents
1 | |
7 | |
11 | |
14 | |
15 | |
16 | |
17 | |
19 | |
79 | |
80 | |
81 | |
83 | |
86 | |
89 | |
90 | |
91 | |
20 | |
21 | |
22 | |
23 | |
26 | |
27 | |
28 | |
29 | |
30 | |
31 | |
32 | |
36 | |
37 | |
39 | |
42 | |
43 | |
45 | |
46 | |
48 | |
49 | |
50 | |
51 | |
52 | |
54 | |
59 | |
60 | |
61 | |
62 | |
63 | |
64 | |
65 | |
66 | |
69 | |
70 | |
76 | |
78 | |
92 | |
93 | |
94 | |
95 | |
96 | |
100 | |
104 | |
106 | |
107 | |
108 | |
110 | |
112 | |
118 | |
121 | |
124 | |
25 | |
67 | |
3 | |
28 | |
34 | |
37 | |
41 | |
49 | |
57 | |
3 | |
10 | |
16 | |
4 | |
10 | |
15 | |
30 | |
37 | |
49 | |
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...