Rotating cage security device for a gyratory projectile

Details Rotating cage security device for a gyratory projectile Rotating cage security device for a gyratory projectile

1983-09-22

1985-04-16

Brown, David H.

Ammunition and explosives

Igniting devices and systems

Arming devices

102237, 102245, 102246, F42C 1504, F42C 1522, F42C 1534

Patent

active

045108692

ABSTRACT:
The security device of the invention comprises a movable organ in the interior of a cage mounted for rotation with respect to the body of a projectile, the movable organ being temporarily blocked from such rotation around the axis of gyration by at least one pin ejectable under the action of centrifugal force. Said pin is itself retained by an elastic spiral band enrolled upon the cage and which, as a result of a difference introduced into the speeds of respective rotation of the cage and of the body around the axis of gyration upon the exit of the projectile from the muzzle of the weapon, unwinds to liberate the pin. As a result, the movable organ after a trajectory of many tens of meters after the projectile has left the muzzle of the barrel of the weapon completes the pyrotechnic train which fires the projectile.

REFERENCES:
patent: 3585935 (1971-06-01), Birkist
patent: 3994230 (1976-11-01), Kalin
patent: 3995557 (1976-12-01), Engle et al.
patent: 4242963 (1981-01-01), Ziemba

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