TANK GUN WITH EASILY DETACHABLE BARREL Russian patent published in 2007 - IPC F41A21/24 

FIELD: constructions of tank guns.

SUBSTANCE: the tank gun neck is made detachable towards the muzzle end of the barrel, and the cradle is provided with longitudinal power strips for the support of the breech end catches at a dismounted tube. The fastening casing is press-fitted on the tube breech end up to the stop at the circular shoulder made in the breech end of the tube and leaned by the end face against the breech end mirror. Segments of a square thread engageable with the segments of the female thread of the breech end are cut on the external surface of the casing. The working side of the thread of a part of the end turns of the casing on the side of the breech end facing the muzzle end is made with a larger pitch than that of the remaining turns. The residual bending of the tube is positioned in the vertical plane with the centers of curvature above the bore axis.

EFFECT: reduced labor content of barrel replacement.

4 dwg