Mechanical anti-hangfire system

Details Mechanical anti-hangfire system Mechanical anti-hangfire system

1979-06-08

1981-11-24

Bentley, Stephen C.

Ordnance

Machine guns

Axially moving breech block

F41D 1100

Patent

active

043017096

ABSTRACT:
A hangfire protection system for an externally powered gun includes a recoil sensing mechanism cooperating with a sear latching mechanism such that in the event of a hangfire, a sear engages a safety link on the chain drive assembly to keep the bolt locked. If the round fires, gun function continues; if the round does not fire there is a delay of a sufficient time to assure that the round is a dud, and it is ejected. The details of the mechanical hangfire protection system are described.

REFERENCES:
patent: 1216938 (1917-02-01), Brotherston
patent: 4154143 (1979-05-01), Pechamat et al.

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