β¨ Wire Rope Load Tables
Table No. 19.-Double-wire-rope Strops.
TABLE OF BREAKING-LOADS AND CORRESPONDING SAFE-WORKING LOADS FOR DOUBLE STROPS WITH A THIMBLE IN EACH END
AND MADE OF BLACK-STEEL-WIRE ROPE OF PATENT IMPROVED PATENT STEEL QUALITY OF THE BREAKING-LOAD SPECIFIED
IN APPENDIX II.
(Strop loaded as shown in Diagram No. 7.)
| Two Ropes each of Size | Strands and Wires 6/19. | Strands and Wires 6/24. | Strands and Wires 6/37. | |||||
|---|---|---|---|---|---|---|---|---|
| Circum-ference, in Inches. | Diameter, in Inches. | Breaking-load, in Tons. | Working-load, in Tons, &c. | Working-load, in Pounds. | Breaking-load, | Working-load, in Tons. | Working-load, in Tons, &c. | Working-load, in Pounds. |
| T. cwt. qr. lb. | T. cwt. qr. lb. | |||||||
| 2 | 5/8 | 24-8 | 2 15 0 12 | 6,172 | 23-0 | 2 11 0 12 | 5,724 | 23-8 |
| 21/8 | 11/16 | 27-2 | 3 0 1 21 | 6,769 | 25-6 | 2 16 3 15 | 6,371 | 27-2 |
| 21/4 | 23/32 | 31-2 | 3 9 1 9 | 7,765 | 28-6 | 3 3 2 6 | 7,118 | 30-6 |
| 23/8 | 3/4 | 35-2 | 3 18 0 24 | 8,760 | 31-6 | 3 10 0 24 | 7,864 | 32-4 |
| 21/2 | 13/16 | 38-2 | 4 4 3 15 | 9,507 | 34-8 | 3 17 1 9 | 8,661 | 36-2 |
| 25/8 | 27/32 | 41-0 | 4 11 0 12 | 10,204 | 39-6 | 4 8 0 0 | 9,856 | 40-4 |
| 23/4 | 7/8 | 45-8 | 5 1 3 3 | 11,399 | 43-2 | 4 16 0 0 | 10,752 | 44-6 |
| 27/8 | 29/32 | 50-8 | 5 12 3 15 | 12,643 | 46-8 | 5 4 0 0 | 11,648 | 49-2 |
| 3 | 15/16 | 57-8 | 6 8 1 21 | 14,385 | 50-8 | 5 12 3 15 | 12,643 | 53-8 |
Table No. 20.-Double-wire-rope Strops.
TABLE OF BREAKING-LOADS AND CORRESPONDING SAFE-WORKING LOADS FOR DOUBLE STROPS WITH A THIMBLE IN EACH
END AND MADE OF GALVANIZED-STEEL-WIRE ROPE OF HAWSER BASIC QUALITY OF THE BREAKING-LOAD SPECIFIED IN
APPENDIX III.
(Strop loaded as shown in Diagram No. 7.)
| Two Ropes each of Size | Strands and Wires 6/19. | Strands and Wires 6/24. | Strands and Wires 6/37. | |||||
|---|---|---|---|---|---|---|---|---|
| Circum-ference, in Inches. | Diameter, in Inches. | Breaking-load, in Tons. | Working-load, in Tons, &c. | Working-load, in Pounds. | Breaking-load, | Working-load, in Tons. | Working-load, in Tons, &c. | Working-load, in Pounds. |
| T. cwt. qr. lb. | T. cwt. qr. lb. | |||||||
| 2 | 5/8 | 23-4 | 2 12 0 0 | 5,824 | 21-8 | 2 8 1 21 | 5,425 | 22-6 |
| 21/8 | 11/16 | 25-8 | 2 17 1 9 | 6,421 | 24-4 | 2 14 0 24 | 6,072 | 25-8 |
| 21/4 | 23/32 | 30-8 | 3 8 1 21 | 7,665 | 28-4 | 3 3 0 12 | 7,068 | 29-0 |
| 23/8 | 3/4 | 33-4 | 3 14 0 24 | 8,312 | 31-4 | 3 9 3 3 | 7,815 | 32-6 |
| 21/2 | 13/16 | 36-0 | 4 0 0 0 | 8,960 | 34-4 | 3 16 1 21 | 8,561 | 35-4 |
| 25/8 | 27/32 | 38-8 | 4 6 0 24 | 9,656 | 37-6 | 4 3 2 6 | 9,358 | 40-2 |
| 23/4 | 7/8 | 43-4 | 4 16 1 21 | 10,801 | 41-0 | 4 11 0 12 | 10,204 | 44-4 |
| 27/8 | 29/32 | 48-0 | 5 6 2 18 | 11,946 | 44-4 | 4 18 2 18 | 11,050 | 48-0 |
| 3 | 15/16 | 51-2 | 5 13 3 3 | 12,743 | 50-0 | 5 11 0 12 | 12,444 | 53-2 |
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VUW Te Waharoa —
NZ Gazette 1927, No 30
NZLII —
NZ Gazette 1927, No 30
β¨ LLM interpretation of page content
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Safe-working loads for galvanized-wire-rope purchases
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ποΈ Infrastructure & Public WorksWire rope, Safe working loads, Purchases, Galvanized wire rope, Construction specifications, Load tables