Technical Specifications




1488
THE NEW ZEALAND GAZETTE.
[No. 30

APPENDIX II.

BLACK-STEEL-WIRE ROPES.—BREAKING-LOADS.
(Quality: Special Improved Patent Steel. Tensile strength of wires, 90–100 tons per square inch.)

Size of Rope. Construction: Six Strands of 19 Wires each. Construction: Six Strands of 24 Wires each. Construction: Six Strands of 37 Wires each.
Circumference, in Inches. Diameter, in Inches (approximate). Actual Breaking-load, in Tons. Actual Breaking-load, in Tons.
1 5/16 3·0 2·7
1⅛ 3/8 3·7 3·7
13/32 4·7 4·5
1⅜ 7/16 5·5 5·4
15/32 6·7 6·3
1⅝ 1/2 8·1 7·3
9/16 9·1 8·4
1⅞ 19/32 10·7 10·2
2 5/8 12·4 11·5
2⅛ 11/16 13·6 12·8
23/32 15·6 14·3
2⅜ 3/4 17·6 15·8
13/16 19·1 17·4
2⅝ 27/32 20·5 19·8
7/8 22·9 21·6
2⅞ 29/32 25·4 23·4
3 15/16 28·9 25·4
3⅛ 1 30·7 27·4
1¹/₃₂ 33·6 30·5
3⅜ 1¹/₁₆ 36·6 32·7
1¹/₈ 39·6 35·0
3⅝ 1⁵/₃₂ 41·8 37·3
1³/₁₆ 45·1 39·7
3⅞ 1¹/₄ 48·6 42·2
4 1⁹/₃₂ 50·9 46·0
4⅛ 1⁵/₁₆ 54·6 48·7
1¹¹/₃₂ 57·1 51·4
4⅜ 1³/₈ 61·0 54·3
1⁷/₁₆ 65·0 57·2
4⅝ 1¹⁵/₃₂ 67·7 60·2
1¹/₂ 71·9 64·7
4⅞ 1⁹/₁₆ 74·8 67·9
5 1¹⁹/₃₂ 79·2 71·1
5⅛ 1⁵/₈ 83·7 74·5
1¹¹/₁₆ 88·5 77·9
5⅜ 1³/₄ 96·5 84·9
1²⁷/₃₂ 104·9 94·0
6 1²⁹/₃₂ 115·5 101·7


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🚂 Regulations for cargo gear and handling (continued from previous page)

🚂 Transport & Communications
Cargo gear, Wire ropes, Safe working loads, Shackling, Burton block, Coal handling, Ship inspections, Chain slings, Wire-rope slings, Fibre-rope slings, Short-link chain, Breaking loads, Tensile loads