摘要:
A multiple stage armor piercing projectile cartridge with a hardened steel projectile having a pyrotechnic end target contact cap. A secondary propellant cartridge with a steel conveyance housing providing additional kinetic impact penetrating force to the target.
摘要:
A multiple stage armor piercing projectile cartridge with a hardened steel projectile having a pyrotechnic end target contact cap. A secondary propellant cartridge with a steel conveyance housing providing additional kinetic impact penetrating force to the target.
摘要:
The present invention describes an electronic fuze operable to complement a mechanical point impact fuze. The electronic fuze includes a voltage generator circuit, micro-controller, a piezo-electric sensor, a firing circuit and a safety lockout circuit. When a projectile strikes a target at an optimum angle, the mechanical point impact fuze is activated; when the strike angle is oblique, the mechanical point impact fuze may be ineffective but the piezo-electric sensor is operable to trigger the firing circuit. The safety lockout circuit ensures the firing circuit is operative only after a predetermined delay time when an n-channel FET is turned OFF. The micro-controller also generates a TIME-OUT signal, which provides for self-destruction of a projectile that has failed to explode.
摘要:
A safe and arm (S&A) device is disclosed. The device utilizes a no-fire separation distance and a mechanical configuration of primary explosive/booster explosive and secondary explosive to establish a safe mode. While in safe mode, the device would allow no more than 1 in 1 million detonation transfers to occur from primary to secondary. In armed mode, the no-fire separation distance is taken away, allowing reliable detonation transfer. Two arming environments, which occur after launch and safe separation, are used to move the S&A device to armed mode. The first environment is the release event of the projectiles from their packed state in a dispenser. The second environment is a target sense mechanism. If either arming environment returns to its original state, the mechanism returns to safe mode. The S&A device will not allow inadvertent packing into the dispenser of explosive devices in the armed state.
摘要:
A projectile comprised of: a projectile body comprising a lower base with a first and second end and an upper wall section, in which the first end of the lower base has a substantially planar top surface and the upper wall section extends axially from the top surface, and the lower base forms an axial bore and an axial passage, in which the axial bore extends from the second end to the axial passage and the axial passage extends from the axial bore to the first end; a powder capsule within the axial bore for holding an explosive charge; a detonation fuse disposed in an operative position adjacent to the top surface of the projectile body; an O-give having a rearwardly open hollow interior and an end portion adapted to engage the upper wall section of the projectile body; a firing member secured to the O-give and positioned to engage the detonation fuse upon impact of the projectile; an anti-creeping mechanism between the O-give and the detonation fuse to prevent movement of the detonation fuse toward the firing pin prior to impact; a closure mechanism for fixedly securing the O-give to the projectile body; and an end member secured to the second end of the lower base. The projectile portion can be positioned at least partially within a cartridge case which allows the projectile to be expelled from the cartridge case.
摘要:
Apparatus for rendering the fusing of a ballistic missile, including a firing pin, insensitive to raindrop impact, by interposing between the firing pin and the site of impact of raindrops, a resonant mechanical system having a natural period which is long compared to the duration of impact of any raindrop.
摘要:
A fuze for firing the explosive charge of a projectile, comprising, in combination, a firing mechanism, including a firing pin, mounted resiliently in said projectile for rearward axial movement of the pin to fire the charge, a probe, including forward and rearward ends and an integral shear washer between the ends, mounted in the projectile with the forward end positioned to receive impact from media traversed by the projectile, with the rearward end slightly spaced forward of the firing mechanism, the washer normally preventing movement of the probe toward the mechanism, so that impact of the fuze with a rigid target shears the washer and enables the probe to engage the mechanism and thereby cause firing of the projectile.
摘要:
A percussion type projectile nose fuse includes a generally conical fuse body having a cavity open only to the base thereof. Disposed within the cavity is a firing pin, a sleeve and a ball igniter. A fuse tip portion is defined by a weakened region, open to the fuse body exterior surface, which ruptures upon tip impact with a target, thereby causing at least partial rearward penetration of the tip into the cavity. Upon such tip penetration, the tip severs a flange on the firing pin by driving it against the sleeve, and propells the firing pin rearwardly along the sleeve and into engagement with the ball igniter. By forming the sleeve substantially longer than the length of the firing pin, a time delay before ignition, equal to the firing pin transit time, is provided. A forward opening recess formed in the apex of the tip, with a thin deformable wall thereabout, provides shock absorption so that accidental rupture of the weakened region does not occur during normal handling and loading of the projectile. The fuse is constructed of an aluminum alloy thereby permitting a relatively long fuse body to enhance the ballistic characteristics of an assembled projectile. The fuse being adapted for use in very high velocity projectiles by applying a thermally ablative material to the tip portion.
摘要:
A firing mechanism for a percussion cap for a pyrotechnic device in which a firing pin is mounted on the underside of a leaf spring. The spring is normally unstressed but can be drawn back and stressed by manual withdrawal of a device engaged beneath the spring. Release of the stressed spring brings down the firing pin on the percussion cap to fire it.
摘要:
There is disclosed a spot welding device for spot welding metal parts by explosive force. The device comprises two plugs tightly fitted into a rigid tubular member and so spaced and shaped that a transverse substantially conical space is formed between the two plugs. This space is filled with a suitable explosive material which can be exploded by a detonator activated when desired by an igniter. The explosive force generated upon detonation of the explosive material produces a generally annular spot weld when the device is placed with one of its ends upon metal parts to be welded.