88 
of the rocket is then lighted, and in order to secure ener- 
getic combustion of the rocket ere it is allowed to rush forth 
on its course, the rocket is held in check by three slight 
springs within the guide tube at the rear of the rocket, by 
means of which it is not permitted to rush forth until the 
proper energy of discharge of propulsive gases has been 
acquired. As soon as this is the case the rocket frees itself 
and then rushes forth impressed with and possessing every 
condition of a true rifle projectile combined with all those 
important properties which rockets possess as implements 
of warfare. 
