Automatic or semiautomatic firearm

Details Automatic or semiautomatic firearm Automatic or semiautomatic firearm

1994-10-18

1995-12-12

Johnson, Stephen M.

Firearms

Breech loading

Grip magazine pistols

42 50, 89138, F41A 925

Patent

active

054738342

ABSTRACT:
The firearm comprises a manual control (13) for deactivation of the retainer of a cartridge magazine (8) by release of a tooth (16) from a notch (17) of the magazine and a device for the automatic ejection of the magazine. The automatic ejection device comprises a finger (25) for the actuation of the tooth (16), which is integral with the cartridge elevator piston (19) of the cartridge magazine (8), to come against the retainer of the latter and cause its ejection before the end of the elevation stroke of the cartridge elevator piston during the chambering of the last cartridge (12) under the thrust of the spring (20) of this piston against an activation spring (18) of the retainer. After the ejection of the empty cartridge, the retainer (13) is again activated by its spring (18) and, during the replacement of this magazine, a cartridge (12) is thus chambered and the firearm is ready to fire.

REFERENCES:
patent: 657918 (1900-09-01), Copping et al.
patent: 804984 (1905-11-01), Searle
patent: 875209 (1907-12-01), Prinke
patent: 886211 (1908-04-01), Hino et al.
patent: 904646 (1908-11-01), Prinke
patent: 1089195 (1914-03-01), Falco
patent: 1130312 (1915-03-01), Mauser
patent: 1350619 (1920-08-01), Payne
patent: 1992380 (1935-02-01), Linder
patent: 2667817 (1954-02-01), Asby, Jr.
patent: 2765558 (1956-10-01), Roper et al.
patent: 2881547 (1959-04-01), Butler

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