✨ Technical Standards for Fibre-Rope Equipment
1904
THE NEW ZEALAND GAZETTE.
[No. 49
Table No. 37.—Fibre-rope Yard-arms, Coal-whips, Span-purchases, and Guys
(Ordinary Grade).
TABLE OF SAFE-WORKING LOADS FOR ORDINARY-GRADE ROUND FIBRE
ROPES WHEN NEW AND WHEN USED FOR YARD-ARMS, COAL-WHIPS,
SPAN-PURCHASES, OR GUYS, AND WHEN THE LOAD IS CARRIED ON
TWO PARTS (DIAGRAM No. 10).
(Ropes to be closely spun and not tarred.)
| Size of Rope. | Working-load, in Tons, &c. | Working-load, in Pounds. | Size of Rope. | Working-load, in Tons, &c. | Working-load, in Pounds. |
|---|---|---|---|---|---|
| Circumference, in Inches. | Diameter, in Inches (approx.). | ||||
| 3¼ | 1¹⁄₈ | 1 9 1 18 | 3,294 | 4½ | 1⁷⁄₁₆ |
| 3½ | 1⁹⁄₁₆ | 1 13 3 0 | 3,780 | 4¾ | 1¹⁄₈ |
| 4 | 1⁷⁄₃₂ | 1 18 1 18 | 4,302 | 5 | 1¹⁹⁄₃₂ |
| 4½ | 1¹¹⁄₃₂ | 2 3 1 10 | 4,854 |
Table No. 38.—Fibre-rope Yard-arms, Coal-whips, Span-purchases, and Guys
(Higher Grade.)
TABLE OF SAFE-WORKING LOADS FOR HIGHER-GRADE ROUND FIBRE ROPES
WHEN NEW AND WHEN USED FOR YARD-ARMS, COAL-WHIPS, SPAN-
PURCHASES OR GUYS, AND WHEN THE LOAD IS CARRIED ON TWO PARTS
(DIAGRAM No. 10).
(Ropes to be closely spun and not tarred. Grade to be distinguished
by a red thread spun into the centre of one strand.)
| Size of Rope. | Working-load, in Tons, &c. | Working-load, in Pounds. | Size of Rope. | Working-load, in Tons, &c. | Working-load, in Pounds. |
|---|---|---|---|---|---|
| Circumference, in Inches. | Diameter, in Inches (approx.). | ||||
| 2½ | 2³⁄₃₂ | 0 15 0 22 | 1,702 | 3½ | 1³⁄₁₆ |
| 2¾ | 1³⁄₁₆ | 0 18 3 0 | 2,100 | 4 | 1⁹⁄₃₂ |
| 2¾ | 7⁄₈ | 1 2 2 22 | 2,542 | 4¼ | 1¹¹⁄₃₂ |
| 3 | 1⁵⁄₁₆ | 1 6 3 26 | 3,022 | 4½ | 1⁷⁄₁₆ |
| 3¼ | 1¹⁄₃₂ | 1 11 2 20 | 3,548 | 4¾ | 1¹⁄₈ |
| 3½ | 1¹⁄₈ | 1 16 3 2 | 4,118 | 5 | 1¹⁵⁄₃₂ |
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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 fibre-rope yard-arms and coal-whips (Ordinary Grade)
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🚂 Transport & CommunicationsFibre-rope, Yard-arms, Coal-whips, Safe-working loads, Technical standards, Tables, Ordinary Grade
🚂 Safe-working loads for fibre-rope yard-arms and coal-whips (Higher Grade)
🚂 Transport & CommunicationsFibre-rope, Yard-arms, Coal-whips, Safe-working loads, Technical standards, Tables, Higher Grade