274 
AUTOMATIC SIGHTING. 
STOP 
Fig. 3. 
In designing 
my sight in 
1894 for the 
War Office, it 
occurred to me 
that the disad¬ 
vantage of the 
hind sight mov¬ 
ing up and 
down would be 
got over if it 
could be ar¬ 
ranged for the 
fore sight to 
move instead. 
It is evident 
that as far as 
givingan angle 
of elevation is 
concerned it 
matters not 
which sight is 
moved. Figs. 
L. r - r _r 
i i 
! : 
l/yf) 
! ! 
-yc y J 
i i 
i i 
* i 
!1 
3 and 4 shows this sight which was 
successfully tried at a target travelling 
18 to 20 knots. It is fixed to the ordin¬ 
ary fore sight of the gun, with which 
it did not in any way interfere, and 
thus allowed of ordinary laying being| 
resorted to at any moment. A 6-pr.J 
in which the sights recoiled with the 8 
guns was purposely selected by the 
committee, and I was specially de¬ 
barred from using a telescope. Fig. 4 
gives a front view of the fore sight of 
the gun with my automatic arrange¬ 
ment fitted to it. Fig. 3 a side view, 
both full size. 
D is an acorn sight at the end of a 
lever G D , which is capable of revol¬ 
ving round an axis G. G E 7 is a pro¬ 
jecting piece, forming part of the lever 
G D. Around the end of E is passed 
a chain* one end of which is 
