Abstract: A cartridge case adapter member is adapted to fit over a fin hub member of fin stabilized projectile and is securely held thereto by the combination of an interlocking retainer sleeve and retainer plug. The combination projectile-to-combustible cartridge case attachment permits the projectile subassembly to pass a standard five foot drop test.

Abstract: A length sensing photocell has its output connected to the input of a Scht trigger control circuit which alternately actuates solenoid pneumatic valves which in turn cause a cylinder operated single strand shuttle cutter to repetitively cut extruded lengths of grain propellants to a substantially uniform length independent of their rate of extrusion.

Abstract: Propellant grain material in the form of corrugated rectangularly shaped forated strips is supported in a radial cylindrical configuration by support rings and a plurality of equally spaced longitudinal support blocks. The longitudinal and cylindrical support structures support the propellant material during combustion and orientate the strip for uniform ignition of all surfaces. The propellant strips are designed to aid in their assembly to the support structure, to provide channels through which the propellant surfaces may be ignited, and in addition, to provide paths through which gas produced can be more uniformly exhausted.

Abstract: A pneumatic point detonating fuze utilizes the environmental parameters of he setback acceleration and projectile to accomplish safing and arming functions. Launch acceleration is utilized to unlock a fluidic system and allow it to respond to the air stream velocity. Upon completion of the arming cycle the fluidic system enables a mechanical-electrical fuzing system by closing electrical contacts and rotating out-of-line detonators so that they are in-line with an explosive train. A setback magnetic pulse generator operates at launch to charge a firing capacitor in an electronic switching circuit. Piezoelectric elements operate in conjunction with a trigger circuit to provide a firing signal at impact.

Abstract: A sealed combustion cartridge mechanism is used to propel a projectile and o ignite an impact percussion type primer which in turn activates a delay train located in the projectile. The forward end of a cup seal telescoping propelling member is axially dimpled so that it will hold the primer in close proximity to the delay train. The convex portion of the dimple protrudes toward a movable propellant cup slidably contained within the closed combustion telescoping member. The propellant cup upon ignition of the propellant is forcibly thrown, by the rapidly expanding gases, against the protruding dimple and the rear of the projectile. The kinetic energy of impact of the propellant cup against the dimpled surface of the telescoping member is utilized not only to help the expanding telescoped cup seal member drive the projectile from the cartridge, but also to ignite the primer and start the delay train of the propelled round.

Abstract: The setback force of a gun launch environment is used to help arm a projele fuze by shearing a pin which holds a slidable nozzle in a non-operative position. The sheared pin permits the nozzle to move into an operative position adjacent to a heat producing resonance tube. A second arming function is performed when the velocity of the launched projectile causes air to push a spring biased out-of-line detonator into alignment with the heat producing resonance tube. Ram air which is forced into the resonance tube by the high speed of the projectile creates shock waves which generate heat which ignite the detonator.

Abstract: A small arms silencer utilizes a transversely perforated biased piston mer, moving in a vented, perforated, housing, to temporarily contain projectile blast gases in a sealed-off area. The trapped noise producing blast gases are released through a valve in the housing at a rate and frequency which makes the blast noise level inaudible. Barrel movement compensation is provided by a combination of an impulse of gases acting against a closed end of the housing in opposition to a counter force generated by the moving piston on the other end of the housing.

Abstract: An omnidirectional impact and self-destruct fuze for initiation of a gren has a primer which after being initiated ignites a delay column. The delay column melts an eutectic metal arming plug which unlocks a ball detent to permit a striker assembly to be responsive to an impact sensor. If upon impact the inertial force of an impact weight fails to displace an impact spring so that it will release the spring biased striker against a detonator, the burning delay column will subsequently ignite a flash mix and melt a self-destruct nut, thereby releasing a retainer screw and the striker assembly therefrom so that the latter will forcibly hit the detonator causing the grenade to self-destruct.

Abstract: A settable warhead burst range selector permits the user of a weapon to rdly change a chambered flechette ejecting projectile from a muzzle-burst mode to an extended-range mode. A slide containing a pyrotechnic delay is held in a neutral, muzzle burst mode, by a slide positioning locking plate. The pyrotechnic slide has flash ports along its length which are designed to cause flechette expulsion in either the muzzle-burst or the extended-range mode. The range mode is selected by twisting a knurled sleeve into a specific camming position. The sleeve is connected to a striker pin which projects into the weapon chamber area. The striker pin is capable of striking and dimpling the round in the chamber. A dimpled round will cause the slide positioning locking plate to detent the pyrotechnic slide so that the round will be in its extendedrange mode. An undimpled round will permit the pyrotechnic slide to move so that the round is in its muzzle-burst mode.

Abstract: A gyroscopic rate switch is held in an open position by a torsionally resined gimbal in a pressurized compartmentalized housing. Run-up of the rotor, uncaging of the gimbal, and actuation of electrical switches is accomplished by controlled release of pressurized gas from the housing through operatively positioned orifices in the gimbal to an exhaust port. A temperature compensated by-pass valve in the housing makes the rate switch operation insensitive to and independent of environmental changes in temperatures by providing an alternate gas escape route for the gas available for rotor spin-up.The rate switch is functionally operated by the precession of the uncaged gimbal upon spin-up of the rotor and spin of the missile.