✨ Technical Standards Tables
JULY 11.] THE NEW ZEALAND GAZETTE. 1905
Table No. 39.—Fibre-rope Slings (Ordinary Grade).
TABLE OF SAFE-WORKING LOADS FOR FIBRE-ROPE SLINGS ON WHICH THE LOAD
IS CARRIED ON TWO PARTS OR LEGS OF THE SLING.
(Rope of ordinary grade, closely spun, and not tarred, and to withstand a
breaking-load not less than the breaking-load specified in Table 4 (1).)
| Size of Rope. | Legs parallel. | B = L. | B = 1½ L. | B = 1¾ L. |
|---|---|---|---|---|
| Circumference in Inches | Diameter in Inches (approx.). | Working-load, in Pounds. | Working-load, in Tons, &c. | Working-load, in Pounds. |
| 1 | ⁵⁄₁₆ | 202 | 0 1 3 6 | 175 |
| 1¼ | ¹³⁄₃₂ | 315 | 0 2 3 7 | 272 |
| 1½ | ¹⁵⁄₃₂ | 454 | 0 4 0 6 | 393 |
| 1¾ | ⁹⁄₁₆ | 616 | 0 5 2 0 | 534 |
| 2 | ⁶⁄₈ | 805 | 0 7 0 21 | 697 |
| 2¼ | ²³⁄₃₂ | 1,021 | 0 9 0 13 | 884 |
| 2½ | ¹³⁄₁₆ | 1,260 | 0 11 1 0 | 1,091 |
| 2¾ | ⁷⁄₈ | 1,525 | 0 13 2 13 | 1,321 |
| 3 | ¹⁵⁄₁₆ | 1,813 | 0 16 0 21 | 1,570 |
| 3¼ | 1¹⁄₁₆ | 2,128 | 0 19 0 0 | 1,843 |
| 3½ | 1¹⁄₈ | 2,470 | 1 2 0 6 | 2,139 |
| 3¾ | 1³⁄₁₆ | 2,835 | 1 5 1 7 | 2,455 |
| 4 | 1⁹⁄₃₂ | 3,226 | 1 8 3 6 | 2,794 |
| 4¼ | 1¹¹⁄₃₂ | 3,641 | 1 12 2 1 | 3,153 |
| 4½ | 1⁷⁄₁₆ | 4,081 | 1 16 1 21 | 3,534 |
| 4¾ | 1¹¹⁄₁₆ | 4,548 | 2 0 2 12 | 3,939 |
| 5 | 1¹⁹⁄₃₂ | 5,040 | 2 5 0 0 | 4,364 |
| 5¼ | 1¹⁹⁄₃₂ | 6,097 | 2 14 1 21 | 5,280 |
| 6 | 1²⁹⁄₃₂ | 7,268 | 3 4 3 6 | 6,286 |
Table No. 40.—Fibre-rope Slings (Higher Grade).
TABLE OF SAFE-WORKING LOADS FOR FIBRE-ROPE SLINGS ON WHICH THE LOAD
IS CARRIED ON TWO PARTS OR LEGS OF THE SLING.
(Rope of higher grade, closely spun, and not tarred, and to withstand a breaking-load not less than the breaking-load specified in Table 5 (2). Rope to be distinguished by a red thread spun into the centre of one strand.)
| Size of Rope. | Legs parallel. | B = L. | B = 1½ L. | B = 1¾ L. |
|---|---|---|---|---|
| Circumference in Inches | Diameter in Inches (approx.). | Working-load, in Pounds. | Working-load, in Tons, &c. | Working-load, in Pounds. |
| 1½ | ⁹⁄₁₆ | 770 | 0 6 3 14 | 667 |
| 2 | ⁵⁄₈ | 1,006 | 0 8 3 26 | 871 |
| 2¼ | ²³⁄₃₂ | 1,276 | 0 11 1 16 | 1,105 |
| 2½ | ¹³⁄₁₆ | 1,575 | 0 14 0 7 | 1,364 |
| 2¾ | ⁷⁄₈ | 1,906 | 0 17 0 2 | 1,651 |
| 3 | ¹⁵⁄₁₆ | 2,266 | 1 0 0 26 | 1,962 |
| 3¼ | 1¹⁄₁₆ | 2,660 | 1 3 3 0 | 2,304 |
| 3½ | 1¹⁄₈ | 3,087 | 1 7 2 7 | 2,674 |
| 3¾ | 1³⁄₁₆ | 3,544 | 1 11 2 16 | 3,069 |
| 4 | 1⁹⁄₃₂ | 4,032 | 1 16 0 0 | 3,492 |
| 4¼ | 1¹¹⁄₃₂ | 4,551 | 2 0 2 15 | 3,941 |
| 4½ | 1⁷⁄₁₆ | 5,101 | 2 5 2 5 | 4,417 |
| 4¾ | 1¹¹⁄₁₆ | 5,685 | 2 10 3 1 | 4,924 |
| 5 | 1¹⁹⁄₃₂ | 6,300 | 2 16 1 0 | 5,455 |
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VUW Te Waharoa —
NZ Gazette 1935, No 49
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NZ Gazette 1935, No 49
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Safe-working loads for fibre-rope slings (Ordinary Grade)
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🚂 Transport & CommunicationsFibre-rope, Slings, Safe-working loads, Technical standards, Tables, Ordinary Grade
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