403 
HEIMANN AND KUPER'S TABLE. 
WIRE 
ROPES. 
HEMPEN ROPES. 
Wire 
Gauge 
Number. 
Size. 
Weight per 
Fathom. 
Strength. 
Size. 
Weight per 
Fathom. 
11 
Inches. 
H 
lbs. 
13 
oz. 
5 
Tons. 
20 
Inches* 
10 
24 0 
13 
H 
8 
3 
m 
16 0 
14 
H 
6 
11 
101 
12 8 
15 
2i 
5 
2 
9 4 
16 
2^ 
4 
3 
7 
8 8 
NEWALL'S TABLE. 
Comparative Table of the Size, Weight, and 
Cost of Hemp and Wire Ropes. 
Sale Price of Wire 
Ropes. 
HEMP ROPES. 
WIRE ROPES. 
Ibs.Wt. 
per 
Fathm. 
Break- 
ing 
Strain. 
Working 
Load. 
Price per 
Cwt. 
Circum 
ference 
in 
Inches. 
Pounds 
Weight 
per 
Fathom. 
Cost 
per 
Fathom. 
Circum 
ference 
in 
Inches. 
Pounds 
Weight 
per 
Fathom. 
Cost per 
Fathom. 
lbs. 
2 
3 
4 
5 
6 
7 
8 
9 
11 
13 
15 
17 
tons. cwt. 
3 12 
5 8 
7 4 
9 0 
10 16 
12 12 
14 8 
16 4 
19 16 
23 8 
27 0 
30 12 
tons. cwt. 
0 12) 
0 181 
1 4) 
1 10 V 
1 16 j 
2 2^ 
2 8V 
2 14) 
3 6) 
3 18/ 
4 10) 
5 2]" 
s. d. s. d. 
80 to 75 
75.. 70 
70. .67/6 
67/6. .65 
65.. 62 6 
3 
4 
5 
6 
7 
8 
10 
12 
2i 
4 
9 
16 
25 
36 
a. 
0 10 
1 6 
2 4 ' 
3 4i 
4 7' 
6 0 
9 4i 
13 6^ 
1 1| 
i 
2| 
4 
w 
H 
5 
14 
20 
s. d. 
0 11| 
1 7 
2 2 
3 2f 
4 2i 
5 51 
7 101 
10 5" 
[The following observations have been added since the 
reading of the paper at ShefSeld. They refer more parti- 
cularly to Messrs. Newall's wire ropes :] — 
The first important trial of Metallic Ropes in this country 
was made on the London and Blackwall railway. Two sorts 
of wire rope were there placed in competition with hempen 
rope, the one made by Mr. Andrew Smith, the other by 
Messrs. R. S. Newall and Co. These ropes were at first 
applied to only a very limited extent, and merely as an ex- 
periment ; but it was soon found that the wear and tear of 
the hempen rope was so much greater than that of the wire 
