Drum magazine for a gun

Details Drum magazine for a gun Drum magazine for a gun

1982-09-14

1984-05-01

Bentley, Stephen C.

Ordnance

Cartridge feeding

With magazine

F41C 2510

Patent

active

044454180

ABSTRACT:
A drum magazine for a gun has a circularly cross-sectioned housing (40) with a feed throat (415) extending from the housing for releasing cartridges and concentric sprockets (42, 43, 44) having serrations nesting cartridges. A torsion spring (46) is arranged to rotatingly drive the sprockets and feed ramps (434, 441, 455, 455', 471, 471') are provided for assisting the cartridges to traverse from the sprockets to the feed throat (415).
The feed throat has two lips and one of the lips (417) is pivotally biassed to act as a one way valve such that in one position cartridges are prevented from being ejected in a direction perpendicular to the housing axis and yet cartridges may be inserted into the housing in a direction perpendicular to the housing axis.

REFERENCES:
patent: 111827 (1871-02-01), Elliott
patent: 118916 (1871-09-01), Elliott
patent: 2321720 (1943-06-01), Whittaker
patent: 2585738 (1952-02-01), Cahpin et al.
patent: 2715290 (1955-08-01), Harvey
patent: 3239959 (1966-03-01), Sefried et al.
patent: 3604142 (1971-09-01), Silsby
patent: 4413546 (1983-11-01), Taylor

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