✨ Technical Standards Tables
1898
THE NEW ZEALAND GAZETTE.
[No. 49
Table No. 25.—Black-wire-rope Purchases.
TABLE OF SAFE-WORKING LOADS FOR A PURCHASE CARRYING THE LOAD ON FOUR PARTS (DIAGRAM No. 12).
(Ropes are to be equal to the breaking-loads specified in Table 2.)
| Size of Rope. | Strands and Wires 6/19. | Strands and Wires 6/24. | Strands and Wires 6/37. |
|---|---|---|---|
| Circumference, in Inches. | Diameter, in Inches (approx.). | Working-load, in Tons, &c. | Working-load, in Pounds. |
| 1 | 5/16 | T. cwt. qr. lb. | 4,480 |
| 1/4 | 13/32 | 2 0 0 0 | 7,018 |
| 1/2 | 15/32 | 3 2 2 18 | 10,004 |
| 3/4 | 9/16 | 4 9 1 8 | 13,588 |
| 2 | 5/8 | 6 1 1 8 | 18,516 |
| 1/4 | 23/32 | 8 5 1 8 | 23,296 |
| 1/2 | 13/16 | 10 8 0 0 | 28,522 |
| 3/4 | 7/8 | 12 14 2 18 | 34,196 |
| 3 | 15/16 | 15 5 1 8 | 43,156 |
Table No. 26.—Black-wire-rope Purchases.
TABLE OF SAFE-WORKING LOADS FOR A PURCHASE CARRYING THE LOAD ON FIVE PARTS (DIAGRAM No. 13).
(Ropes are to be equal to the breaking-loads specified in Table 2.)
| Size of Rope. | Strands and Wires 6/19. | Strands and Wires 6/24. | Strands and Wires 6/37. |
|---|---|---|---|
| Circumference, in Inches. | Diameter, in Inches (approx.). | Working-load, in Tons, &c. | Working-load, in Pounds. |
| 1 | 5/16 | T. cwt. qr. lb. | 5,600 |
| 1/4 | 13/32 | 2 10 0 0 | 8,773 |
| 1/2 | 15/32 | 3 18 1 9 | 12,506 |
| 3/4 | 9/16 | 5 11 2 18 | 16,986 |
| 2 | 5/8 | 7 11 2 18 | 23,146 |
| 1/4 | 23/32 | 10 6 2 18 | 29,120 |
| 1/2 | 13/16 | 13 0 0 0 | 35,653 |
| 3/4 | 7/8 | 15 18 1 9 | 42,746 |
| 3 | 15/16 | 19 1 2 18 | 53,946 |
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VUW Te Waharoa —
NZ Gazette 1935, No 49
NZLII —
NZ Gazette 1935, No 49
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Safe-working loads for black-wire-rope purchases
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