REWORKING METHOD OF ROTATING BAND OF BODY OF UTILISED ARTILLERY SHELL Russian patent published in 2014 - IPC F42B14/02 

FIELD: weapons and ammunition.

SUBSTANCE: method consists in formation of a projection and a groove on a shell body and a drive band, coincidence of the projection with the groove and in further formation of their fixed connection by relative movements of connected surfaces of the drive band and the shell body. The housing of utilised ammunition without any content is provided with the front bourrelet and some part of the rear bourrelet, which are cleaned from the paint-and-lacquer coating to metal luster, to continuation of the cylindrical surface diameter, which is formed by cutting of the previous rotating band with transition to its shaped part in the form of a reduced projecting fragment. A new connected rotating band is elongated and provided with a groove on inner surface of the rotating band of identical shape with a fragment of the projection of the previous cut rotating band and the part cleaned from the paint-and-lacquer coating on surface of the rear bourrelet. Final attachment of parts is performed at additional supply of the shell to a gun barrel and at initial shooting moment owing to crimping some part of the band with a cylindrical groove shape and axial and angular displacement of the crimped rotating band relative to the housing and the fragment of the previous band, which occur in rifling leads.

EFFECT: improving attachment reliability of the rotating band.

3 dwg