Wellington Provincial Gazette – 1857 – No. 4

Page 39

✨ 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. | inch. | inch. | S=-------
| | | 4 ad²
No. 1. Kauri (Dammara Australis) 60 1·9 1·9 0 5 2·2 7 | 4·3 | 1715
60 1·9 1·9 777 3 1·8 4 | 3·0 | 1102
60 1·9 3·0 571 13 1·3 16 | 2·0 | 1470
574 mean | | 1429 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.
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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.
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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