Wedge-type breechblock for a gun

Details Wedge-type breechblock for a gun Wedge-type breechblock for a gun

1992-08-24

1994-07-26

Johnson, Stephen M.

Ordnance

Breech closures

Transverse

89 2713, F41A 312

Patent

active

053318803

ABSTRACT:
A wedge-type breechblock is disposed at the breech end of a gun. A cartridge chamber having a length L1 in the wedge-type breechblock accommodates propellant igniters, with obturation being effected by the respective propellant igniters. A firing mechanism operatively disposed at the wedge-type breechblock detonates propellant igniters loaded into the cartridge chamber from a magazine. A propellant igniter magazine is disposed adjacent the wedge-type breechblock and includes a guide chute and individual propellant igniters lined up in a row in the guide chute. The propellant igniters each have a casing and a length L2 which is greater than the length L1 of the cartridge chamber so that when a propellant igniter is loaded in the cartridge chamber in a firing position, a rear portion of the propellant igniter remains within the casing.

REFERENCES:
patent: 474289 (1892-05-01), Camet
patent: 487586 (1892-12-01), Steinert
patent: 1091638 (1914-03-01), Dawson et al.
patent: 1095558 (1914-05-01), Dawson et al.
patent: 3099937 (1963-08-01), Bartels
patent: 4558626 (1985-12-01), Bartolles
patent: 4991490 (1991-02-01), Balbo et al.
patent: 5054365 (1991-10-01), Wissing
patent: 5115716 (1992-05-01), Doering et al.

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