✨ Experimental Data on New Zealand Woods
| Number of Experiment. | Name of Wood. | Dimensions in inches. | Specific Gravity. | Weight when destroyed. | Deflection by this weight. | Weight. Breaking. | Ultimate Deflection. | I.w.
S = ad² | Remarks. |
|------------------------|------------------------------------|----------------------|------------------|-----------------------|---------------------------|-------------------|----------------------|-------------|-----------|
| | | Length. | b. & h. | Depth. | | owt. | inch. | cwt. | meb. | | | |
| No. 5. | Hinau (Dicera Dentata) ............ | 60 | 1·9 | 1·9 | 562 | 1·6 | 6 | 4·2 | 1470 | Both specimens good of the sort. The wood has very little power of resisting compression; and being light is probably not durable. |
| | | 60 | 1·9 | 1·9 | 560 | 1·5 | 6½ | 4·2 | 1531 | |
| | | | | | | | | 1500 mean. | |
| No. 6. | Miro (Podocarpus Ferruginea) ...... | 60 | 1·9 | 1·9 | 957 | 6½ | 1·6 | 7½ | 1837 | This is apparently a very good wood. The first specimen broke at a knot; the second was a very clean specimen. |
| | | 60 | 1·9 | 1·9 | | 9 | 2·1 | 12¼ | 3001 | |
| | | | | | | | | 2419 mean. | |
| No. 7. | Manuka (Leptospermum Scoparium) ... | 60 | 1·9 | 1·9 | 906 | 7 | 1·6 | 11½ | 2817 | Both specimens were clean and good. Fibre of wood good—gave good warning before breaking. |
| | | 60 | 1·9 | 1·0 | | 7¼ | 2·15 | 9½ | 2266 | |
| | | | | | | | | 2542 mean. | |
| No. 8. | Mangian ............................ | 60 | 1·9 | 1·9 | 621 | 6 | 2·2 | 7 | 1715 | Specimen good—fibre and fracture good. |
| | | 60 | 1·9 | 1·9 | | 4½ | 1·7 | 6½ | 1592 | |
| | | | | | | | | 1604 mean. | |
| No. 9. | Rewa Rewa (Knightia Excelsa) ...... | 60 | 1·9 | 1·9 | 758 | 6½ | 1·5 | 9¾ | 2327 | Good specimen—fibre and fracture also good; gave fair warning. |
| | | 60 | 1·9 | 1·9 | | 4¼ | 1·4 | 7½ | 1837 | |
| | | | | | | | | 2082 mean. | |
| No. 10. | Kohe Kohe (Laurus Kohe Kohe) ...... | 60 | 1·9 | 1·9 | 678 | 4½ | 1·4 | 5½ | 1347 | One of these specimens was warped, and both worm-eaten; grain tolerably fair. |
| | | 60 | 1·9 | 1·9 | | 4½ | 1·5 | 6 | 1470 | |
| | | | | | | | | 1408 mean. | |
Next Page →
✨ LLM interpretation of page content
🌾
Report of trials on New Zealand woods
(continued from previous page)
🌾 Primary Industries & Resources20 December 1856
Woods, Experiments, Strength, Kauri, Totara, Rata, Rimu, Specific Gravity, Deflection, Elasticity, Breaking, Ultimate Deflection
Wellington Provincial Gazette 1857, No 4