Patent ID: 7228779

Claim:
A primer feed mechanism mounted on a carrier for an artillery piece having a breech end, the mechanism comprising: a body member for mounting the mechanism to the carrier, including means for a) interfacing with the carrier to position the mechanism on one side of the breech end of the artillery piece, b) providing constrained movement of a movable tray member; the tray member including rails for engagement on the body member and also providing for a housing with a channel in which a primer injector arm member moves; one end of the primer injector arm member including means for engaging a cam surface channel member that is attached to the body member, the means for engaging includes a linkage member that follows a cam path in the cam surface channel member, an other end of the arm member has a cylindrical member that is pivotally attached, whereby rotary motion of the arm member causes linear injection of a primer cartridge into a firing chamber; and an extraction member attached to the body member, the extraction member allowing displacement of a spent primer cartridge out of a firing chamber.