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1668
THE NEW ZEALAND GAZETTE.
[Nov. 30
Table No. 25.—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 Appendix IV (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 | 434 | 0 4 0 6 | 393 |
| 1¾ | 9/16 | 616 | 0 5 2 0 | 534 |
| 2 | 5/8 | 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 | 1¹/₃₂ | 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 | 1⁵/₃₂ | 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 | 1¹/₂ | 4,548 | 2 0 2 12 | 3,939 |
| 5 | 1¹⁰/₃₂ | 5,040 | 2 5 0 0 | 4,364 |
| 5¼ | 1³/₄ | 6,007 | 2 14 1 21 | 5,280 |
| 6 | 1²⁰/₃₂ | 7,268 | 3 4 3 6 | 6,286 |
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VUW Te Waharoa —
NZ Gazette 1927, No 30
NZLII —
NZ Gazette 1927, No 30
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Safe-working loads for fibre-rope slings
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🏗️ Infrastructure & Public WorksFibre rope, Safe working loads, Slings, Construction specifications, Load tables