| 摘要 |
In a device for detonating an explosive charge in a liquid medium by closing an electric circuit comprising a first conductive member passing through an explosive charge contained in a nose end portion of a cartridge body, the other end of the body having a flared portion and serving as a means for seating the body in an immersed end of a charging tube, and a second conductive member for electrically connecting the first conductive member to terminals of a current source, an improvement of the cartridge body being that the cartridge body is formed of two portions each being equipped with a conductive circuit member. One of these portions is a female element having an insulating inner wall and a conductive outer wall in which these two walls define a chamber containing the explosive charge and the inner wall having a contact of the electric circuit. The other portion is in the form of a hollow male element having a closed end portion adapted to be received in a closed end portion of the female element. The male element includes an insulating outer wall and a conductive inner wall provided with a contact member adapted to contact the contact of the female element when the male element is received therein.
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