Shoulder arm with swivel breech member

Details Shoulder arm with swivel breech member Shoulder arm with swivel breech member

1981-02-09

1982-09-14

Bentley, Stephen C.

Ordnance

Automatic

Movable chamber type

42 9, 89 33MC, F41D 1020

Patent

active

043489419

ABSTRACT:
A shoulder arm, especially a rifle, having a barrel, a recess, which is perpendicular to the axis of the barrel, formed in a member which is fixedly connected with the barrel, and a roller-shaped breech member coaxially arranged in the recess and capable of being swivelled about its longitudinal axis for loading. The breech member contains a firing chamber which, in the firing position of the breech member, is in alignment with the barrel and is closed to the rear. The shoulder arm also has an arrangement for swivelling the breech member out of the firing position and into a loading position, in which the firing chamber is accessible for the introduction of a cartridge. The recess is designed in the form of a cylindrical hole, whose wall serves to mount the roller-shaped breech member and to directly close the firing chamber when it is located in the firing position. The breech member is retained in its respective position by means of the swivelling arrangement which can only rotate the breech member in one direction. A magazine and an ejector, are mounted on the same side of the shoulder arm or weapon and above the barrel.

REFERENCES:
patent: 38772 (1863-06-01), Underwood
patent: 3997994 (1976-12-01), Kastner et al.
patent: 4004363 (1977-01-01), Sackenreuter et al.
patent: 4091711 (1978-05-01), Petersen et al.

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