Coil strip safety device for spinning projectiles

Details Coil strip safety device for spinning projectiles Coil strip safety device for spinning projectiles

1982-08-17

1984-08-28

Brown, David H.

Ammunition and explosives

Igniting devices and systems

Arming devices

102243, F42C 1522

Patent

active

044677235

ABSTRACT:
A fuze for a spinning projectile has a firing pin which is held against movement by a safety device until the projectile has traveled a preset distance. The safety device comprises a coil spring strip which overlies the firing pin in its initially coiled-up state, and releases the firing pin when in a centrifugally-induced expanded state. The spring coil is arranged to be highly elastic so as to be returnable to its initially coiled-up, evenly wound state, even after the projectile has been subjected to jarring during transport, etc. The coil strip has a tensile strength of 1200 to 2800 N/mm.sup.2 and a thickness greater than 20 .mu.m.

REFERENCES:
patent: 2362987 (1944-11-01), Church et al.
patent: 3030886 (1962-04-01), Junghans et al.
patent: 3516359 (1970-06-01), Weber et al.
patent: 3954061 (1976-05-01), Rudenauer et al.
patent: 4242963 (1981-01-01), Ziemba

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