474 APPARATUS FOR 



Explanation of Plate XXIV. 



Fig. 1. represents the whole apparatus on a scale 

 of four-tenths to one inch. 



Fig. % gives a section of the cap C, and steel 

 hammer e 9 which strikes upon the powder at the 

 top of the tuhe A B. 



Fig. 3. gives a section of the top A of the tuhe, 

 and the cup d for holding the powder. 



Fig. 4. shews the hottom of the cup, which screws 

 into A, from below, as shewn in fig. 8. The hole 

 through the tube from B to A, divides into three 

 smaller openings. 



Fig. 5. shews the end of one of the divisions of 

 the tube A B, and the size of the screw which unites 

 them at a, b, and c. 



Fig. 6. shews the bore of the tube at a, b, c, and 

 B. 



Fig. 2, 3, 4, 5, and 6, shew the parts of the ap- 

 paratus of the full size ; and for fig. 1. there is a 

 scale given. 



I may mention a few advantages of this mode of 

 firing ordnance of every description. These are 

 principally extracted from a communication on the 

 subject, with which Colonel Yule has favoured me. 



u 1st, The instantaneous inflammation of the 

 whole of the powder contained in the cartridge." 



