Technical Standards Tables




Table No. 33.—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 TABLE 2.

(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.
Circumference, in Inches. Diameter, in Inches. Breaking-load, in Tons. Working-load, in Tons, &c.
2 5/8 24·8 T. cwt. qr. lb.
23/32 31·2 2 15 0 12
13/16 38·2 3 9 1 9
7/8 45·8 4 4 3 15
3 15/16 57·8 5 1 3 3
6 8 1 21

Table No. 34.—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 TABLE 3.)

(Strop loaded as shown in Diagram No. 7.)

Two Ropes each of Size Strands and Wires 6/12. Strands and Wires 6/24. Strands and Wires 6/30.
Circumference, in Inches. Diameter, in Inches. Breaking-load, in Tons. Working-load, in Tons, &c.
2 5/8 16·6 T. cwt. qr. lb.
23/32 21·6 1 16 3 16
13/16 26·4 2 8 0 0
7/8 30·4 2 18 2 19
3 15/16 37·2 3 7 2 6
4 2 2 18


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Double-wire-rope strops, Safe-working loads, Technical standards, Tables