THE ROYAL ARTILLERY INSTITUTION. 
137 
TWO SURFACES. 
Table V. 
THROUGH WROUGHT-IROIT. 
.' 
1 
S 
02 
o 
© 
JR, wt. to 
overcome 
friction 
of 
motion. 
I, impact 
of b. 
^a © 
^ ° M 
j! 
a § 
S| 
e s 
a II 
2 jd 
•rj II 
£j 
'S J 
■ 
■sl a 
J g S. 
Remarks. 
3 | 
S -3 
o • 
•g g w 
^a . 
« 43 
i 
CD 
a 
? 3 
o 
r 3 ^ 
2^o 
cm 
O 
o 
I 
ea 
© 
& 
© a 
o H 
& ® 
O Cm 
O O 
O' 
a s 
^lo 
> o 
*"§•§ 
ft.g 
in. 
lbs. 
lbs. 
lbs. 
O 
ft. 
r 
755 
per sec 
97 
2 
M 
64 
35 
755 
764 
•341 
30 
3-79 
1-25 
Regular. 
3 
£ 
783 
1 
694 
98 
2 
tuo 
32 
70 
659 
677 
•302. 
30 
3-79 
4*5 
Regular. 
3 
1 2 
679 
1 
JSj 
520 
99 
2 
16 
140 
510 
510 
•228 
0 
0 
1-8 
Regular. 
3 
o 
500 
100 
1 
4 
560 
781 
781 
•349 
30 
3-79 
... 
Started with 781 lbs., the oak 
surface then scraped up and 
1 
635 
954 lbs. were required. 
101 
2 
M 
64 
35 
625 
635 
•283 
30 
3-79 
•88 
Regular. 
3 
£ 
645 
1 
J 
620 
102 
2 
t>C 
^ S 
32 
70 
630 
630 
•281 
30 
3-79 
2 
Regular. 
3 
r o 
640 
1 
441 
103 
2 
a 
16 
140 
466 
444 
•198 
0 
0 
1-25 
Regular. 
3 
426 
104 
1 
4 
560 
677 
677 
•302 
30 
379 
... 
Surfaces of elm scraped up. 
1 
635 
105 
2 
64 
35 
625 
625 
•279 
30 
3’79 
1-13 
Regular. 
3 
w 
615 
1 
£ 
555 
108 
2 
s 
32 
70 
540 
548 
•245 
30 
3-79 
1-5 
Regular. 
3 
550 
1 
rs 
451 
107 
2 
16 
140 
446 
449 
•200 
0 
0 
1-4 
Regular. 
3 
451 
108 
1 
© 
4 
560 
506 
506 
526 
513 
•229 
30 
3-79 
3 
Surfaces of teak slightly scraped. 
1 
>1 
625 
109 
2 
W 
64 
35 
615 
630 
•281 
30 
3-79 
1 
Regular. 
3 
£ 
650 
1 
.d 
595 
110 
2 
id 
32 
70 
585 
595 
•266 
30 
379 
1*6 
Regular. 
3 
f 2 
605 
1 
£ 
4-3 
625 
111 
2 
<D 
16 
140 
615 
617 
•276 
0 
0 
1 
Regular. 
3 
.s 
Qj 
610 
112 
1 
rH 
4 
560 
1200 
... 
... 
Surfaces of pine destroyed. 
1 
1423 
113 
2 
64 
35 
1458 
1457 
•650 
30 
379 
30 
Very irregular and jerky. 
3 
M 
1491 
1 
£ 
1042 
114 
2 
•gjo 
32 
70 
1067 
1059 
•481 
30 
379 
40 
Very irregular and jerky. 
3 
1 3 
r c 
a 
1067 
1 
1042 
115 
2 
^3 
16 
140 
1077 
1076 
•480 
30 
379 
12 
Very irregular and jerky. 
3 
M 
1110 
1 
£ 
1259 
110 
2 
3 
4 
560 
1307 
1259 
1275 
•568 
23 
2-92 
... 
Very irregular and jerky. 
