Low spin-deceleration safing and arming mechanism

Details Low spin-deceleration safing and arming mechanism Low spin-deceleration safing and arming mechanism

1975-01-16

1976-06-29

Brown, David H.

Ammunition and explosives

Igniting devices and systems

F42C 1522

Patent

active

039658210

ABSTRACT:
A safing and arming mechanism which is adapted for use with a mechanical fuze, and which is armed only after having been subjected to the combined and total effects of a spin environment and of an aerodynamic deceleration environment, with the existence of the environments being either separate or simultaneous. The mechanism includes a rotor and a rotor spring which will arm the mechanism only at a higher static spin rate than a lockweight component of the mechanism. Because of a delay disc-lockweight interlock structural feature, the complete arming sequence of the mechanism is prevented until the necessary spin and deceleration environments exist. When this environmental combination is achieved, the lockweight moves before the rotor can return; and, that results in the release of the rotor and the arming of the mechanism.

REFERENCES:
patent: 3371608 (1968-03-01), Webb
patent: 3583319 (1971-06-01), James
patent: 3587469 (1971-06-01), Gratton et al.
patent: 3724384 (1973-04-01), Donahue
patent: 3730101 (1973-05-01), Schultz

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