1000 



EXPERIMENTS ON SOLID AND GASEOUS EXPLOSIVES. 



0-01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 



389 



o.oa 



0.03 0.04 0.05 



Time in seconds. 



0.06 



0.07 



0.08 



jLime in suconus. 



Fig. 19. Variation of the rate of combustion and of the maximum pressure produced by a non- 

 uniform distribution of the charge. 



Cylindrical enclosure; gravimetric density O'l ; diameter of cord 0'475 inch (12 "07 millims.). A, charge 

 uniformly distributed ; B, charge placed in one sixth of the cylinder near the recorder. 



0.005 



O.oio 



0.015 



o.oeo 



O.OiO 



0.035 



0.005 



0.010 



0030 



0.035 



0.015 o.oeo o.oas 



Time in seconds. 



Fig. 20. Variation of the rate of combustion and of the maximum pressure produced by a non- 

 uniform distribution of the charge. 



Cylindrical enclosure; gravimetric density - 1 ; diameter of cord 0-175 inch (4'44 millims.). A, charge 

 uniformly distributed; B, charge placed in one half of the cylinder farthest from the recorder; 

 C, charge placed in one sixth of the cylinder farthest from the recorder. This case is somewhat 

 exceptional. The charge was so closely packed that it formed a nearly solid mass, which was probably 

 scattered on ignition by the pressure of the gas produced behind it. 



