✨ 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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🚂 Safe-working loads for fibre-rope yard-arms and coal-whips (Ordinary Grade) (continued from previous page)

🚂 Transport & Communications
Fibre-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 & Communications
Fibre-rope, Yard-arms, Coal-whips, Safe-working loads, Technical standards, Tables, Higher Grade