434 
MR. HODGKINSON’S EXPERIMENTAL RESEARCHES 
Results of Experiments on the Resistance of Solid Uniform Cylinders of Cast Iron 
to a Crushing - Force. 
Table II . — Low Moor Iron, No. 3, cast in green sand, Plate XV. No. 1, C. Ends of 
cylinders turned flat and parallel to each other, and the pressure caused by the 
approach of two parallel surfaces, between which the cylinder was placed, its ends 
perfectly coinciding with them. 
Deflection 
Corre- 
Breaking 
Mean from 
Length. 
Diameter. 
Diameter. 
Weight. 
of middle 
sponding 
weight. 
breaking 
Remarks. 
of pillar. 
weight. 
weights. 
inches. 
60-5 
60-5 
inch. 
inch. 
lbs. oz. 
inch. 
lbs. 
lbs. 
lbs. 
These two had discs two inches dia- 
•51 
} -51 
/3 41 
1 
/ 483 1 
487 
meter upon the ends ; all the rest 
had the ends turned flat, and were 
*51 
1 3 51 
J 
l 49 1 i 
L 4 
without discs. 
60-5 
•77 
•07 
1162 
•11 
1812 
> -77 
•22 
2036 
f After bearing 2036 it bent in an- 
(_ other direction. 
1 
•30 
2260 
23161 
60-5 
•77 
J 
7 51 
•06 
1588 
•08 
•10 
1812 
2036 
> 
2456 
•13 
2260 
•17 
2484 
2596 J 
60-5 
•99 
•05 
4123 
•12 
5467 
•21 
6139 
•30 
6475 
681U 
60-5 
1-01 
•997 
•05 
4123 
•14 
5467 
5971 
6238 
60-5 
•99 
11 8 
•04 
4123 
•10 
5467 
5932 J 
60-5 
1-30 
•10 
11235 
•11 
11627 
•14 
12411 
•16 
13195 
•19 
13979 
•24 
14763 
•30 
15547 
•47 
16331 
16527' 
60*5 
1-29 
1-29 
19 11 
•15 
11217 
•22 
13177 
> 
16064 
•26 
13961 
•37 
14745 
•45 
15137 
15333 
60-5 
1-28 
20 0 
16331 1 
