Self-destruct delay fuze

Details Self-destruct delay fuze Self-destruct delay fuze

1975-12-15

1976-12-21

Brown, David H.

Ammunition and explosives

Igniting devices and systems

102 76P, 102 83, 102 86, 102 71, F42C 1504

Patent

active

039981649

ABSTRACT:
A conventional impact-sensitive fuze for an explosive projectile, compris a support frame having a transverse channel, containing an arming slider having a locking hole and a detonator, and an axial opening in which a firing pin is slidably mounted by means of a slidable weight in which the firing pin is threaded, is modified by substituting, for the firing pin, a tubular firing pin support containing a timing member having a shaft and a head or paddle forming part of a retarding dashpot, and a spring-loaded firing pin connected to the timing member shaft by a camming pin and helical slot connection. In safe condition, the firing pin is in forward position engaging the locking hole in the slider. When the firing pin support and firing pin are retracted, the slider moves into armed position, and the timing member starts to rotate, retarded by the dashpot. If the fuze has not functioned normally, the timing member rotates sufficiently, after a predetermined time, to release the pin from the slot and self-destruct the fuze.

REFERENCES:
patent: 1857131 (1932-05-01), Barker
patent: 2748708 (1956-06-01), Bertram
patent: 2856854 (1958-10-01), Bowersett et al.
patent: 2925778 (1960-02-01), VonNemeth
patent: 3712421 (1973-01-01), Hadfield
patent: 3768407 (1973-10-01), Savarese
patent: 3913483 (1975-10-01), Wolterman
patent: 3919941 (1975-11-01), Breed et al.

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