✨ Wood Trial Results
RESULTS OF TRIALS, AT THE ROYAL MINT, SYDNEY, OF SPECIMENS OF NEW ZEALAND WOODS, selected for the purpose.
| Number of Experiment. | Name of Wood. | Dimensions in Inches. | Specific Gravity. | Weight wrought. | Deflection by Elasticity. | Deflection this Weight Breaking. | Ultimate Deflection. | lw. |
|---|---|---|---|---|---|---|---|---|
| Length. | Breadth. | Depth. | cwt. | inch. | cwt. | |||
| No. 1. | Kauri (Dammara Australis) | 60 | 1·9 | 1·9 | 0 | 5 | 2·2 | 7 |
| 60 | 1·9 | 1·9 | 777 | 3 | 1·8 | 4 | ||
| 60 | 1·9 | 3·0 | 571 | 13 | 1·3 | 16 | ||
| 574 mean | ||||||||
| Remarks. | Fibre very brittle; breaks without warning. One of the specimens flew into five pieces. |
| No. 2. | Totara (Podocarpus) | 60 | 1·9 | 1·9 | 634 | 5 | 2·3 | 6½ | 3·5 | 1592 |
| | | 60 | 1·9 | 1·9 | 0 | 5 | 2·5 | 5½ | 3·4 | 1409 |
| | | 60 | 1·9 | 3·0 | 540 | 11 | 1·4 | 12½ | 2·7 | 1274 |
| | | | | | 587 mean | | | | | 1425 mean |
| Remarks. | Grain of wood short and coarse; wood breaks without warning. The specimens tried were fair of their kind. |
| No. 3. | Rata (Metrosideros Robusta) | 60 | 1·9 | 1·9 | 1106 | 4½ | 1·3 | 6 | 1·8 | 1470 |
| | | 60 | 1·9 | 1·9 | 0 | 4 | 3·0 | 7 | 3·2 | 1715 |
| | | 60 | 1·9 | 3·0 | 1050 | 15 | 7·5 | 26 | 2·0 | 2548 |
| | | | | | 1078 mean | | | | | 1911 mean |
| Remarks. | Specimens 1 and 2 were cross-grained and broke short. No. 3 was a very good specimen—the fracture good. |
| No. 4. | Rimu (Dacrydium Cupressinum) | 60 | 1·9 | 1·9 | 572 | 5 | 2·5 | 6½ | 4·4 | 1592 |
| | | 60 | 1·9 | 1·9 | 0 | 3½ | 2·2 | 5½ | 4·9 | 1347 |
| | | 60 | 1·9 | 3·0 | 579 | 13 | 1·1 | 17 | 2·4 | 1666 |
| | | | | | 576 mean | | | | | 1535 mean |
| Remarks. | Broke very short. No grain.
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✨ 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