Machine-pistol for cartridges of different types

• US 4,895,064 A
• Filed: 12/14/1987
• Issued: 01/23/1990
• Est. Priority Date: 02/27/1986
• Status: Expired due to Fees

• Current Assignee: Socimi Societa Costruzioni Industriali Milano SPA
• Original Assignee: Socimi Societa Costruzioni Industriali Milano SPA
• Inventors: Marzocco, Alessandro
• Primary Examiner(s): BENTLEY, STEPHEN
• Application Number:
  US07/123,154
• Time in Patent Office: 771 Days
• Field of Search: 42/9, 42/25, 89/151, 89/194, 89/196
• US Class Current: 89/196
• CPC Class Codes: F41A 15/14 the ejector being mounted on or within the bolt; Extractors per se
• CPC Class Codes: F41A 19/26 the percussion or firing pin and the breech-block or bolt forming one piece F41A19/34 takes precedence
• CPC Class Codes: F41A 19/28 propelled by a cam or lever when the breech-block or bolt arrives in a closing position
• CPC Class Codes: F41A 3/54 Bolt locks of the unlocked type, i.e. being inertia operated

Abstract

A machine pistol for cartridges of different types comprises a barrel, a cartridge chamber within said barrel for housing a cartridge in a firing position, and a magazine for feeding cartridges to the cartridge chamber. A percussion pin is provided for firing the cartridge. A breech block is movable relative to the barrel for actuation of the percussion pin. A longitudinal portion of the breech block has a small radial clearance relative to a wall of the barrel and defines a semicylindrical chamber surrounding the barrel over a certain longitudinal length. The percussion pin is positioned in the wall of the barrel and is radially movable relative to the barrel under the action of a portion of an actuator device movable with the breech block.

Claims

1. A machine pistol for cartridges of different types, comprising:

a barrel having an axis,

a cartridge chamber within said barrel for housing a cartridge in a firing position,

a magazine for feeding cartridges to said cartridge chamber,

a percussion pin for firing said cartridge,

a breech block movable relative to the barrel for actuation of said percussion pin, a longitudinal portion of said breech block having a small radial clearance relative to a wall of said barrel and defining a semicylindrical chamber surrounding the barrel over a certain longitudinal length, said percussion pin being positioned in the wall of the barrel and radially movable relative to said barrel under the action of a portion of an actuator device movable with the breech block, the actuator device including a bell crank hinged on the breech block and movable in a plane passing through the axis of the barrel and a stop tooth, for causing the bell crank to pivot about its hinge, integral with the barrel, said stop tooth located on said barrel in such a position as to engage the bell crank at an end of a forward stroke of the breech block.

2. A machine pistol according to claim 1, wherein the bell crank has a longer arm and a shorter arm, the shorter arm cooperating with said stop tooth and the longer arm cooperating with said percussion pin.