EXPLOSIVES 



181 



a 



b 



2S 



d 



c 



"%^ 



h 



<s*e 



After E. I. du Pont de Nemours & Co. 



Fig. 161. Preparing primer for safety-fuse firing where drill hole is large 



(a) Cut off sufficient length of fuse, (b) Take one cap from the box with the fingers, 

 (c) Place cap on end of fuse, (d) Crimp cap to fuse with cap crimper, (e) Punch hole 

 in side of cartridge with handle of cap crimper. (/) Tie cord around fuse, (g) Com- 

 plete by tying cord around cartridge, (h) Completed primer ready to be loaded. 



