Ordnance – Machine guns – Revolving barrels
Patent
1988-01-11
1989-06-27
Brown, Daivd H.
Ordnance
Machine guns
Revolving barrels
89 11, F41F 1100, F41D 702
Patent
active
048418358
ABSTRACT:
In an externally powered firing weapon the danger exists with an ignition delay or hangfire condition that the cartridge still is ignited after the positively reciprocated breechblock has been unlocked from the weapon barrel. The safety apparatus in accordance with the invention prevents, in case of an ignition delay, firing of the cartridge after unlocking of the positively reciprocated breechblock. Heretofore known safety devices of this type are complicated and a substantially simple design is strived for. The safety apparatus in accordance with the invention automatically decouples the breechblock carrier from the breechblock head when the breechblock head is locked in the weapon barrel. The device responding to an ignition delay prevents unlocking of the breechblock head from the weapon barrel and coupling of the breechblock carrier with the breechblock head. The breechblock head locked by means of a rotary lock to the weapon barrel and the breechblock carrier are preferably coupled together by means of a rotary coupling.
REFERENCES:
patent: 3772959 (1973-11-01), Tassie
patent: 3776416 (1973-12-01), Ashley et al.
patent: 3921499 (1975-11-01), Ginsky
patent: 4131052 (1978-12-01), Skahill
patent: 4154143 (1979-05-01), Pechamat et al.
patent: 4193335 (1980-03-01), Tassie
patent: 4301710 (1981-11-01), Kirkpatrick
patent: 4550641 (1985-11-01), Bruderer et al.
patent: 4699040 (1987-10-01), Menges
Bohler Erwin
Bruderer Werner
Brown Daivd H.
Kleeman Werner W.
Werkzeugmaschinen-fabrik Oerlikon-Buhrle AG
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