Abstract: An explosion device for use in connection with the explosive disposal of poisons, explosives and the like and a method for operating the device are disclosed. The device comprises an explosion chamber which is anchored in a foundation, a lock chamber including an inner door for transferring an explosive mixture from the lock chamber into the explosion chamber and an outer door for removing material from the lock chamber, a compensating device in the explosion chamber to absorb the explosive energy generated by the explosion of an explosive mixture in the explosion chamber, a vacuum system, and means connecting the vacuum system to the lock chamber and to the explosion chamber for establishing a vacuum condition within the lock chamber and within the explosion chamber. The inner door of the lock chamber is operable, in a closed position, to prevent communication between the explosion chamber and the lock chamber.

Abstract: A rotational body supported in a housing of the apparatus carries an angle indication marker, which serves as a signal trigger of a signal transducer secured in a positionally fixed manner relative to the housing of the rotational body. The signal transducer has a transducer body axially displaceably disposed in its transducer housing. This body is displaceable in the direction of its longitudinal axis in order to actuate a first contact switch, and is provided inside its other end face with a switch contact, cooperating with the angle indication marker, of a second contact switch. After the actuation of both contact switches, the angle indication marker is located in a predetermined rotary position, which is indicated in the associated test circuit and serves in particular to ascertain the supply onset position of the drive shaft of a fuel injection pump for internal combustion engines.