✨ Safe-Working Loads for Fibre Ropes




2704
THE NEW ZEALAND GAZETTE.
[No. 61

Table No. 21.—Fibre-rope Yard-arms and Coal-whips.

TABLE OF SAFE-WORKING LOADS FOR BEST-QUALITY ROUND FIBRE ROPES
WHEN NEW AND WHEN USED FOR YARD-ARMS OR COAL-WHIPS, AND
WHEN THE LOAD IS CARRIED ON A SINGLE PART (DIAGRAM NO. 9).

(Ropes to be closely spun and not tarred.)

Size of Rope. Size of Rope.
Circumference, in Inches. Diameter, in Inches (approximate). Breaking-load, in Pounds. Working-load, in Tons, &c. Working-load, in Pounds. Circumference, in Inches. Diameter, in Inches. Breaking-load, in Pounds. Working-load, in Tons, &c. Working-load, in Pounds.
1¾ 9/16 2,466 T. cwt. qr. lb. 411 3½ 1¹¹/₈ 9,882 0 14 2 23 1,647
2 5/8 3,222 0 4 3 5 537 3¾ 1³/₁₆ 11,340 0 16 3 14 1,890
2¼ 23/32 4,086 0 6 0 9 681 4 1⁹/₃₂ 12,906 0 19 0 23 2,151
2½ 13/16 5,040 0 7 2 0 840 4¼ 1¹¹/₃₂ 14,565 1 1 2 19 2,427
2¾ 7/8 6,102 0 9 0 9 1,017 4½ 1⁷/₁₆ 16,326 1 4 1 5 2,721
3 15/16 7,254 0 10 3 5 1,209 4¾ 1¹¹/₂ 18,195 1 7 0 8 3,032
3¼ 1¹¹/₃₂ 8,514 0 12 2 19 1,419 5 1¹⁹/₃₂ 20,160 1 10 0 0 3,360

Table No. 22.—Fibre-rope Yard-arms, Coal-whips, Span-purchases, and Guys.

TABLE OF SAFE-WORKING LOADS FOR BEST-QUALITY 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. Circumference, in Inches. Diameter, in Inches.
3½ 1¹¹/₈ T. cwt. qr. lb. 3,294 4½ 1⁷/₁₆ T. cwt. qr. lb. 5,442
3¾ 1³/₁₆ 1 9 1 18 3,780 4¾ 1¹¹/₂ 2 8 2 10 6,064
4 1⁹/₃₂ 1 13 3 0 4,302 5 1¹⁹/₃₂ 2 14 0 16 6,720
4¼ 1¹¹/₃₂ 1 18 1 18 4,854 3 0 0 0


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🚂 Table of Safe-Working Loads for Best-Quality Round Fibre Ropes (Yard-Arms and Coal-Whips) (continued from previous page)

🚂 Transport & Communications
Safe-Working Loads, Fibre Ropes, Yard-Arms, Coal-Whips, Marine Department

🚂 Table of Safe-Working Loads for Best-Quality Round Fibre Ropes (Yard-Arms, Coal-Whips, Span-Purchases, and Guys)

🚂 Transport & Communications
Safe-Working Loads, Fibre Ropes, Yard-Arms, Coal-Whips, Span-Purchases, Guys, Marine Department