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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Online Sources for this page:

VUW Te Waharoa PDF Wellington Provincial Gazette 1857, No 4





✨ LLM interpretation of page content

🌾 Report of trials on New Zealand woods (continued from previous page)

🌾 Primary Industries & Resources
20 December 1856
Woods, Experiments, Strength, Kauri, Totara, Rata, Rimu, Specific Gravity, Deflection, Elasticity, Breaking, Ultimate Deflection