Abstract: The present invention falls in the field of propellant charges for ballistic ammunitions which have combustible or a non-combustible casing. According to the invention, the ammunition is constituted by a casing 2 placed around a shell 1 and closed by a portion 3 which carries the primer 4. The casing contains a mixed charge constituted on one hand by fragmentable balls 5 and on the other hand, by grains 6 of propellant powder. The balls 5 are constituted by agglomerated propellant powder. The charges according to the invention may be prepared on an industrial scale very easily and in a very reproducible manner and they permit an appreciable increase of the coefficient of filling of the casing.

Abstract: Unit charge of propellant powder, which can be fragmented and has the ballistic properties of a granular charge. A charge of this type consists of 85 to 97% of grains of propellant powder containing nitrocellulose and 15 to 3% of a thermoplastic energy-producing binder which is in the form of small solid grains, under normal conditions, and has the following composition:(a) 30 to 60% of polyvinyl nitrate,(b) 70 to 40% of nitrocellulose having a low nitrogen content, or polyvinyl acetate or a mixture of the two, and(c) optionally, a stabilizer.The use of a solid binder makes it possible to mix the propellant powder with the said binder homogeneously and instantaneously, to introduce precise amounts of the mixture thus obtained into a mould and to simplify the moulding operations.

Abstract: The present invention relates to continuous triturators and malaxators having a horizontal drive shaft.The apparatus preferably comprises a semi-circular chute surmounted by parallelepipedal vertical walls, and a stirrer consisting of a shaft which is concentric with the chute and carries rigid blades perpendicular to this shaft, at least one in four of the said blades being extended by a tongue which rubs against the chute, and the materials constituting the various elements which can come into contact with the grains of propellant powder being conductors of electricity.Apparatus which makes it possible to carry out continuous surface treatments of granular propellant powders.