. Timber and timber trees, native and foreign . Timber; Trees. 282 TIMBER AND TIMBER TREES. [chap. Table CL.âYellow Pine (Canada). Transverse Experiments.âyd Example. Deflections. A >. â g â¢a Tensile Experiments. \\ â¢sN 1 'r-" til > lit fit 11 IB g2 ^1 ff in sil 0 Inches. Inches. Inches. lbs. lbs. lbs. 14. 4 2-0O â¢65 3-00 S04 562 538 126-00 2485 4. 28 15- 3 ⢠3-50 .S.^^ 564 591 139-00 2800 3- 29 16. 2 1-50 â 50 475 665 753 166-25 2870 2. 30 17. I 2-25 â «.S 4-50 498 S60 533 124-50 2240 I- 31 18. I' 2-25 75 3-25 SI3 526 585 128-25 1610 i'. 32 19. 2' 2-25 â «s
. Timber and timber trees, native and foreign . Timber; Trees. 282 TIMBER AND TIMBER TREES. [chap. Table CL.âYellow Pine (Canada). Transverse Experiments.âyd Example. Deflections. A >. â g â¢a Tensile Experiments. \\ â¢sN 1 'r-" til > lit fit 11 IB g2 ^1 ff in sil 0 Inches. Inches. Inches. lbs. lbs. lbs. 14. 4 2-0O â¢65 3-00 S04 562 538 126-00 2485 4. 28 15- 3 ⢠3-50 .S.^^ 564 591 139-00 2800 3- 29 16. 2 1-50 â 50 475 665 753 166-25 2870 2. 30 17. I 2-25 â «.S 4-50 498 S60 533 124-50 2240 I- 31 18. I' 2-25 75 3-25 SI3 526 585 128-25 1610 i'. 32 19. 2' 2-25 â «s 2-75 419 566 444 104-75 2150 2'. .33 20. 3' 2-50 7.'; 2*5 421 544 464 105-25 2100 3'- 34 21. 4' 2-25 1675 â¢65 3-0O 460 5f>4 490 115-00 1820 4'- 35 Total 5-65 27-60 4036 4416 4398 ioo9'oo 18075 â Aver. 2-093 â¢706 3-45 504-5 552 54975 126-125 2259-37 â E = 650960. S = 1324. These experiments are similar to the last, but the specimens were taken from a larger tree, and the soft wood about the pith, including the heart-shake, was allowed to drop out. In this case the woody layers were placed vertically in the machine for testing them transversely (Fig. 31). The mean results of the transverse experiments are as follows, viz.:â The pieces I and 1', 543, broke with 505 lbs. £=622720. 8=1327 2 â 2', â 548, â 542 â £=752450. 8=1423 3 .. 3', ., 559. â 488 â £=976160. 8=1282 >> 4 .. 4'. i> 5^3. .. 482 â £=612170. 8=1265. FIG. 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 Laslett, Thomas. London : Macmillan
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherlondo, bookyear1875
