. Report upon the forestry investigations of the U. S. Department of agriculture. 1877-1898. Forests and forestry. Maximum load. Deflection in incites. FINAL RECORD OF TIMBER TESTS. Mark. Longloaf pine; 3 3 1 "White pine: 116 1 3 Percent- age of moisture Cross bending test. Dimensions. Length. Inches. Height. Inches. "Breadth. Inches. Time. Min. 15 16 Load. Pounds. 5,180 3,300 Deflec- tion. Inches. 1,544 1,521 Strength per square inch, (f) Pounds. 10,230 5,660 Modulus of elas- ticity, (e) Pounds. 1,760,000 1,320,000 Resilience in inch- pounds p
. Report upon the forestry investigations of the U. S. Department of agriculture. 1877-1898. Forests and forestry. Maximum load. Deflection in incites. FINAL RECORD OF TIMBER TESTS. Mark. Longloaf pine; 3 3 1 "White pine: 116 1 3 Percent- age of moisture Cross bending test. Dimensions. Length. Inches. Height. Inches. "Breadth. Inches. Time. Min. 15 16 Load. Pounds. 5,180 3,300 Deflec- tion. Inches. 1,544 1,521 Strength per square inch, (f) Pounds. 10,230 5,660 Modulus of elas- ticity, (e) Pounds. 1,760,000 1,320,000 Resilience in inch- pounds per cubic inch, (r) Maik. Longleaf pine: 3 3 "White pine. 116 1 3 Crushing endwise. Dimensions. Height. Inches. Cross section. Inches. Area. Sq. in. Crushing load. Pounds. 77,700 48,400 Strength per square inch. Pounds. 6,040 3,480 Crushing across grain. Dimensions. Height. Inches. Cross section. Inches. Area. Sq. inch. } \ Crushing load. Pounds. 10,400 5,200 Strength per square inch. Pounds. 760 360 Mark. Longleaf pine: 3 3 1 White pine: 116 1 3 , Tension tests. Size of re- duced sec- tion. .41 .45 Area. Sq. inch. \ \ Breaking load. Pounds. 11,400 11,200 Strength per square inch. Pounds. 11, 680 9,880 Shearing tests. Total shearing area. Sq. inch. Breaking load. Pounds. 2,280 2,580 1,700 1,600 Shearing strength. Pounds. 551 650 409 398 â â '"â â 'â fWHHMB. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Fernow, B. E. (Bernhard Eduard), 1851-1923; United States. Forest Service. Washington, Govt. print. off.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectforestsandforestry
