Technical Standards Tables




1898

THE NEW ZEALAND GAZETTE.

[No. 49

Table No. 25.—Black-wire-rope Purchases.

TABLE OF SAFE-WORKING LOADS FOR A PURCHASE CARRYING THE LOAD ON FOUR PARTS (DIAGRAM No. 12).

(Ropes are to be equal to the breaking-loads specified in Table 2.)

Size of Rope. Strands and Wires 6/19. Strands and Wires 6/24. Strands and Wires 6/37.
Circumference, in Inches. Diameter, in Inches (approx.). Working-load, in Tons, &c. Working-load, in Pounds.
1 5/16 T. cwt. qr. lb. 4,480
1/4 13/32 2 0 0 0 7,018
1/2 15/32 3 2 2 18 10,004
3/4 9/16 4 9 1 8 13,588
2 5/8 6 1 1 8 18,516
1/4 23/32 8 5 1 8 23,296
1/2 13/16 10 8 0 0 28,522
3/4 7/8 12 14 2 18 34,196
3 15/16 15 5 1 8 43,156

Table No. 26.—Black-wire-rope Purchases.

TABLE OF SAFE-WORKING LOADS FOR A PURCHASE CARRYING THE LOAD ON FIVE PARTS (DIAGRAM No. 13).

(Ropes are to be equal to the breaking-loads specified in Table 2.)

Size of Rope. Strands and Wires 6/19. Strands and Wires 6/24. Strands and Wires 6/37.
Circumference, in Inches. Diameter, in Inches (approx.). Working-load, in Tons, &c. Working-load, in Pounds.
1 5/16 T. cwt. qr. lb. 5,600
1/4 13/32 2 10 0 0 8,773
1/2 15/32 3 18 1 9 12,506
3/4 9/16 5 11 2 18 16,986
2 5/8 7 11 2 18 23,146
1/4 23/32 10 6 2 18 29,120
1/2 13/16 13 0 0 0 35,653
3/4 7/8 15 18 1 9 42,746
3 15/16 19 1 2 18 53,946


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Black-wire-rope purchases, Safe-working loads, Technical standards, Tables