SHELL BODY Russian patent published in 2017 - IPC F42B12/24 F42B14/02 

FIELD: weapon and ammunition.

SUBSTANCE: shell body contains a cylindrical sheath with a curved taper where a threaded point is placed for the detonator, in the chamber of which semi-finished fragments of the pyramidal shape are formed by means of two rows of counter-directed spiral corrugations of a triangular profile, and a shank adjoining by means of the bottom bridge. The shank narrows to the back to the open end of its dilution chamber, provided with through slits. There is a copper leading belt, fixed in the ring groove of the bridge. The shank with a cylindrical sheath is made of a single rod stock by volume bilateral deformation with the formation of a common reinforced bridge with a grid of prismatic notches on its bottom surface from the side of the chamber. This is designed to withstand the increased loads during firing. Corrugations in the shell are made on the entire length of the chamber, one third bigger than the corrugations on the ogival body.

EFFECT: improved processability of manufacturing the shell body and its fragmentation at a greater range when firing.

3 dwg