New Zealand Gazette – 1926 – No. 61

Page 2692

✨ Technical Specifications

TABLE OF BREAKING-LOADS AND CORRESPONDING WORKING-LOADS FOR BLACK-STEEL-WIRE ROPES OF SPECIAL IMPROVED PATENT STEEL QUALITY USED FOR SINGLE WHIPS, SINGLE STROPS, OR LONG-EYED SNOTTERS AND FOR OTHER SIMILAR CASES WHERE THE LOAD IS CARRIED ON A SINGLE PART.

(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.
Circum-ference, in Inches	Diameter, in Inches (approx.).	Actual Breaking-load, in Tons.	Working-load, in Tons, &c.	Working-load, in Pounds.	Actual Breaking-load, in Tons.	Working-load, in Tons, &c.	Working-load, in Pounds.	Actual Breaking-load, in Tons.	Working-load, in Tons, &c.	Working-load, in Pounds.
1	5/16	3·0	T. cwt. qr. lb.	960	2·7	T. cwt. qr. lb.	864	2·9	T. cwt. qr. lb.	928
1⅛	3/8	3·7	0 8 2 8	1,184	3·7	0 7 2 24	1,184	3·8	0 8 1 4	1,216
1¼	13/32	4·7	0 10 2 8	1,504	4·5	0 10 2 8	1,440	4·3	0 10 3 12	1,376
1⅜	7/16	5·5	0 13 1 20	1,760	5·4	0 12 3 12	1,728	5·3	0 12 1 4	1,696
1½	15/32	6·7	0 15 2 24	2,144	6·3	0 15 1 20	2,016	6·4	0 15 0 16	2,048
1⅝	1/2	8·1	0 19 0 16	2,592	7·3	0 18 0 0	2,336	7·7	0 18 1 4	2,464
1¾	9/16	9·1	1 3 0 16	2,912	8·4	1 4 0 0	2,688	9·0	1 2 0 0	2,880
1⅞	19/32	10·7	1 6 0 0	3,424	10·2	1 9 0 16	3,264	10·4	1 5 2 24	3,328
2	5/8	12·4	1 10 2 8	3,968	11·5	1 12 3 12	3,680	11·9	1 9 2 24	3,808
2⅛	11/16	13·6	1 15 1 20	4,352	12·8	1 16 2 8	4,096	13·6	1 18 3 12	4,352
2¼	23/32	15·6	2 4 2 8	4,992	14·3	2 0 3 12	4,576	15·3	2 3 2 24	4,896
2⅜	3/4	17·6	2 10 1 4	5,632	15·8	2 5 0 16	5,056	16·2	2 6 1 4	5,184
2½	13/16	19·1	2 14 2 8	6,112	17·4	2 9 2 24	5,568	18·1	2 11 2 24	5,792
2⅝	27/32	20·5	2 18 2 8	6,560	19·8	2 16 2 8	6,336	20·2	2 17 2 24	6,464
2¾	7/8	22·9	3 5 1 20	7,328	21·6	3 1 2 24	6,912	22·3	3 3 2 24	7,136
2⅞	29/32	25·4	3 12 2 8	8,128	23·4	3 6 3 12	7,488	24·6	3 10 1 4	7,872
3	15/16	28·9	4 2 2 8	9,248	25·4	3 12 2 8	8,128	26·9	3 16 3 12	8,608
3⅛	1	30·7	4 7 2 24	9,824	27·4	3 18 1 4	8,768	29·4	4 4 0 0	9,408
3¼	1⅛/32	33·6	4 16 0 0	10,752	30·5	4 7 0 16	9,760	30·6	4 7 1 20	9,792
3⅜	1⅛/16	36·6	5 4 2 8	11,712	32·7	4 13 1 20	10,464	33·2	4 14 3 12	10,624
3½	1⅛/8	39·6	5 13 0 16	12,672	35·0	5 0 0 0	11,200	36·0	5 2 3 12	11,520
3⅝	1⅝/32	41·8	5 19 1 20	13,376	37·3	5 6 2 8	11,936	38·8	5 10 3 12	12,416
3¾	1⅜/16	45·1	6 8 3 12	14,432	39·7	5 13 1 20	12,704	41·7	5 19 0 16	13,344
3⅞	1¼/4	48·6	6 18 3 12	15,552	42·2	6 0 2 8	13,504	44·7	6 7 2 24	14,304
4	1⅞/32	50·9	7 5 1 20	16,288	46·0	6 11 1 20	14,720	47·8	6 16 2 8	15,296
4⅛	1⁵/16	54·6	7 16 0 0	17,472	48·7	6 19 0 16	15,584	51·1	7 6 0 0	16,352
4¼	1¹¹/32	57·1	8 3 0 16	18,272	51·4	7 6 3 12	16,448	54·4	7 15 1 20	17,408
4⅜	1³/8	61·0	8 14 1 4	19,520	54·3	7 15 0 16	17,376	56·2	8 0 2 8	17,984
4½	1⁷/16	65·0	9 5 2 24	20,800	57·2	8 3 1 20	18,304	59·6	8 10 1 4	19,072
4⅝	1¹⁵/32	67·7	9 13 1 20	21,664	60·2	8 12 0 0	19,264	63·3	9 0 3 12	20,256
4¾	1½/2	71·9	10 5 1 20	23,008	64·7	9 4 3 12	20,704	67·0	9 11 1 20	21,440
4⅞	1⁹/16	74·8	10 13 2 24	23,936	67·9	9 14 0 0	21,728	70·8	10 2 1 4	22,656
5	1¹⁹/32	79·2	11 6 1 4	25,344	71·1	10 3 0 16	22,752	74·7	10 13 1 20	23,904
5⅛	1⁵/8	83·7	11 19 0 16	26,784	74·5	10 12 3 12	23,840	78·8	11 5 0 16	25,216
5¼	1¹¹/16	88·5	12 12 3 12	28,320	77·9	11 2 2 8	24,928	83·0	11 17 0 16	26,560
5½	1¾/4	96·5	13 15 2 24	30,880	84·9	12 2 2 8	27,168	89·3	12 15 0 16	28,576
5¾	1²⁷/32	104·9	14 19 2 24	33,568	94·0	13 8 2 8	30,080	98·3	14 0 3 12	31,456
6	1²⁹/32	115·5	16 10 0 0	36,960	101·7	14 10 2 8	32,544	107·6	15 7 1 20	34,432

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VUW Te Waharoa — NZ Gazette 1926, No 61

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✨ LLM interpretation of page content

🚂 Table of Breaking-Loads and Working-Loads for Black-Steel-Wire Ropes (continued from previous page)

Domain🚂 Transport & Communications
KeywordsBreaking-Loads, Working-Loads, Black-Steel-Wire Ropes, Marine Department

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