that an energy device not shown similar to the energy device 80 shown in fig2 would have an internal threaded portion which would not be directly compatible with the threads 16 on the male adaptor portion 14 of the male launching tube 10 thus a male adaptor 94 is provided having threads 96 on the left hand end thereof adapted to mate with the internal threads not shown of the energy device not shown with which the assembly of fig7 is intended to cooperate the male adaptor would have threads 98 at the right hand end thereof adapted to cooperate with the internal threads 100 on a female adaptor 102 for the purpose of facilitating the introduction of the threaded end 98 into the threads 100 of the female adaptor 102 a knurled bushing 104 is provided on the male adaptor 94 intermediate the ends the right hand internal end of the female adaptor 102 is provided with a threaded portion 106 which will mate with the threads 16 on the male adaptor portion 14 of the male launching tube 10 fig6 shows a female adaptor 110 which can be used in lieu of the female adaptor 102 shown in fig7 the female adaptor 110 is shown as being longer and not quite as thick walled as the adaptor 102 in fig7 however the female adaptor 110 would be provided with internal threads 112 located to the left of the center of this member for the purpose of cooperating with threads such as threads 98 on the male adaptor 94 obviously the threaded portion 98 on the male adaptor 94 would have to be extended somewhat in order to mate with the threads 112 but this would be within the capability of the man.