Abstract: 1,3,5,7-Tetraalkanoyl-1,3,5,7-octahydrotetrazocines are produced in good ld by reacting a 1,5-dialkanoyl-1,3,5,7-tetraazabicyclo (3,3,1) nonane with an alkanoyl chloride, an alkanoic acid anhydride and an alkanoic acid alkali metal salt in the presence of an organic diluent.

Abstract: A muzzle-expellable gun cartridge comprises a case including a side wall pted to fit the gun chamber and having an open front end and a transverse rear base, a projectile releasably mounted in the front end, a main propellant charge within the case in the front of the base, an auxiliary propellant charge located behind the base for propelling the case through the barrel after propulsion of the projectile therefrom, a primary charge for initiating the two propellant charges, and means for providing spaces between the case and the chamber and for venting part of the propellant gases to these spaces between the case and the chamber to collapse the case side wall and facilitate expulsion of the case, comprising an annular series of external longitudinal flutes and intermediate ribs formed in the side wall with aperture flaps in the flutes for venting the gases through the side wall into the flutes.

Abstract: Octahydro-1,3,5,7-tetraalkanoyl-1,3,5,7-tetrazocines are produced by acting a methylene-bis-alkanecarboxamide with formaldehyde. The reaction carried out by heating the reactants in the presence of an acidic catalyst an inert organic liquid under substantially anhydrous conditions.

Abstract: A controlled fragmentation warhead employing an annular body comprising r of keystone fragments. The rows of fragments are offset one from another in a specific pattern based on the number of rows of fragments. The explosive charge is positioned inside the annular body formed by the fragments and adjacent to their ends within an enclosed body. The explosive charge is detonated at both ends of the annular body at a precalculated interval to cause the resultant shock wave to disperse the fragments in a controlled and predetermined manner so as to derive optimum destructive force from the kinetic energy of the fragments in relation to the chosen target.

Abstract: A device for applying a film of liquid adhesive to the inside lip surface a cylindrical cap includes a vessel containing a body of liquid adhesive, a means, e.g., a drive plate, for rotating the cylindrical cap and one or more rotatable knurled wheels or discs which touch the liquid adhesive and resiliently contact the inside cap surface, whereby the wheel is rotated by rotation of the cap and applies the adhesive to the cap.Magnets in the drive plate attract magnets in the knurled wheels sufficient to constantly turn the wheels when they are not being resiliently pressed against the inner surface of the cap.

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: A supplementary charge cavity is formed in the explosive charge of a high plosive projectile by: rigidly securing an open-ended tubular metal liner axially within the threaded opening or bore of a hollow projectile housing: inserting, within the liner, the shaft of a long-shafted funnel until the lower end is flush with the lower end of the liner and an annular flange on the funnel engages the end of the housing, with a liquid-tight seal between the two lower ends; pouring molten explosive material into the funnel until the housing and funnel are filled to a level above the liner, allowing the material to cool to a solid state; rotating the funnel to shear the case material at the lower end of the funnel; removing the funnel; and securing a closure disc in the lower end of the liner.

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 combination cartridge extractor-ejector device includes a bolt provided th loop of spring steel having a hook end and a spring end projecting therefrom. When the bolt is moved against the cartridge case in the gun breech, the hook slides over and engages the flanged rim of the case while the spring is compressed against the case end; and when the bolt is moved away from the breech sufficient to extract the engaged case, the spring causes the case to pivot on the hook sufficient to disengage the rim from the hook and thereby eject the case from the gun.

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 disclosed firearm comprises a stationary receiver or frame, a breech ck slidably mounted in the receiver and engaging a forward-facing abutment on the receiver in firing position, a barrel slidably mounted on the receiver for rectilinear and transverse motion at its rear end, interlocking abutments on the barrel and receiver engaged by the transverse motion for locking the barrel to the breech block in firing position. Forward movement of the barrel to open the breech during firing is prevented by the locking abutments and the firing reaction on the breech block. The barrel and breech block can be moved forward after firing to disengage the interlocking abutments and open the breech. A manually-operated extractor-ejector member is disclosed.

Abstract: The disclosed firearm comprises a stationary receiver or frame, a breech ck pivotally mounted at its lower end on the receiver and engaging a forward-facing abutment on the receiver in firing position, a barrel slidably mounted near its forward end on the receiver and pivotally connected at its rear end to the upper end of the breech block. Forward movement of the barrel to open the breech at the rear of the barrel bore during firing is prevented by the pivotal connection and the firing reaction on the breech block. The barrel can be moved forward after firing to move the rear end thereof forward and downward to open the breech. The firearm also includes a barrel latch automatically released by the hammer during firing, an extractor-ejector member actuated by the breech block during the opening of the breech, and a hammer-cocking means also actuated by the opening of the breech.

Abstract: An electrical time delay fuze for exploding a projectile in air over a tat comprises (1) a battery and voltage divider carried by the gun, (2) a firing circuit carried by the projectile including two capacitors initially connected in parallel with each other to be charged by the battery, prior to firing the gun, to two different voltages, switching means for subsequently connecting the capacitors in series with each other and with a timing resistor, and means for connecting the two capacitors to the cathode, anode and gate of a programmable unijunction transister (PUT) so that, after setback and projectile launch at firing, the two capacitors discharge through the resistor until the anode is sufficiently positive to the gate to cause the transistor to discharge through an electrical detonator and explode the projectile.

Abstract: An acoustic destructive aerial target seeker having recognition-guidance cuitry which is adapted to detect and recognize the characteristic sound emitted from an armored vehicle and to launch and direct the system toward destructive impact with the target.

Abstract: A coiled explosive ribbon having a plurality of fragments affixed thereto d contained in a circular container; the container includes projecting means secured to one end of the ribbon and detonating means secured to the other end of the ribbon. The mine further includes launching means secured to the projecting means.

Abstract: A dispenser-launched, spin-armed munition is provided with spin-imparting ans made up of a set of helically-oriented primary vanes, having an outer envelope substantially equal to that of the munition body, attached to the body, and a set of helically-oriented, resilient, flexible, extension vanes attached to the primary vanes and extending outwardly therebeyond to increase the effective vane area. The flexible vanes are folded inwardly when the munition is inserted into its launch tube and spring outwardly after launch. The flexible vanes are removably attached to the rigid vanes by rivets in such manner that the flexible vanes are separated from the rigid vanes by the airstream at a predetermined spin rate.

Abstract: In a separable mortar round of the type having a central cartridge chamber ithin the boom portion and provided with a plurality of flash holes extending outwardly of the chamber that improvement, which includes an adhesively bonded thin stainless steel foil disposed about the inner wall of the chamber and closing over the flash holes to provide increased liquid impermeability. The method of applying the aforesaid foil to the chamber wall by wrapping a foil on a hollow mandrel having a plurality of surface openings and applying a vacuum to said mandrel while simultaneously wrapping the foil thereabout. Coating both the foil and the inner chamber wall with an adhesive and inserting said mandrel into the separated boom for aligned disposition in the chamber. Thereafter gaseously sealing the mandrel in the chamber, releasing the vacuum, applying positive pressure to the mandrel and removing the same from the chamber.

Abstract: A fuze for a spin-stabilized artillery projectile comprises a body includ: an ogive member containing point-detonating firing means, selectable for super-quick or delay firing; and a base member containing an inertial delay fuze operable by either direct or graze impact, a combustible fuse loop surrounding the inertial delay fuze and exposed to the point-detonating firing means, and a firing train coupling the inertial delay fuze and the fuse loop to a booster charge for initiating the main explosive charge of the projectile.

Abstract: This invention involves the incorporation of a relatively small quantity of irconium or other pyrophoric material in the high explosive composition of a munition, which provides incendiary, terrain illumination, spotting, and enhanced antipersonnel properties to the munition with little or no diminution of its explosive and fragmentation power.