Abstract: A weapon system comprises a fuze and a transmitter, said transmitter transmitting an RF coded pulse signal whose pulse repetition frequency presets the time base of the fuze and whose pulse combination code presets the mode of operation of the fuze, the fuze having an RF detector for receiving and detecting said signal, a logic circuit for reading said signal with respect to time base and mode of operation, and a timing circuit for enabling said detection for a predetermined time period at a predetermined time in flight.

Abstract: A liquid propellant gun has a combustion chamber which receives liquid propellant from a differential piston operating in a supply chamber, has a gun barrel for the discharge of a projectile, and a balancing nozzle for the discharge of combustion gas. The effective open cross-sectional area of the balancing nozzle is controlled by a plug coupled to the differential piston so that at the start of combustion the nozzle is substantially closed, is subsequently progressively opened in a controlled manner independent of the displacement of the projectile, and is finally fully opened or closed.

Abstract: An ammunition handling system is disclosed having a helical fin of substantially folded plate cross-section made from continuous rectangular ribbons of stock material.

Abstract: A liquid propellant gun utilizes a differential piston having a plurality of bores through its head, which head divides the liquid propellant pumping chamber from the combustion chamber, and propellant supply means providing liquid propellant under pressure into said pumping chamber, which propellant under pressure both advances the piston to enlarge the pumping chamber and to decrease the combustion chamber and injects and atomizes a predetermined quantity of propellant through said bores from said pumping chamber into said combustion chamber, and a check valve which precludes flow of liquid propellant under pressure from said piston to said propellant supply means and damps said piston at the end of its combustion stroke.

Abstract: A fuze for a round of ammunition is provided wherein the gun voltage used for initiating the primer is also used to contemporaneously charge the power supply capacitor.

Abstract: A weapon system comprises a fuze and a transmitter, said transmitter transmitting an RF coded pulse signal whose pulse repetition frequency presets the time base of the fuze and whose pulse combination code presets the mode of operation of the fuze, the fuze having an RF detector for receiving and detecting said signal, a logic circuit for reading said signal with respect to time base and mode of operation, and a timing circuit for enabling said detection for a predetermined time period at a predetermined time in flight.

Abstract: A liquid propellant gun utilizes a differential piston having a plurality of bores through its head, which head divides the liquid propellant pumping chamber from the combustion chamber, and propellant supply means providing liquid propellant under pressure into said pumping chamber, which propellant under pressure both advances the piston to enlarge the pumping chamber and to decrease the combustion chamber and injects and atomizes a predetermined quantity of propellant through said bores from said pumping chamber into said combustion chamber, and a check valve which precludes flow of liquid propellant under pressure from said piston to said propellant supply means and damps said piston at the end of its combustion stroke by means of a damping cylinder.

Abstract: A DC to DC Converter is disclosed which uses a simple oscillator with a variable duty cycle to maintain a constant energy input into the primary inductance of an output transformer irrespective of the input voltage to the converter.

Abstract: A Gatling-type gun is disclosed having a cam plate with a plurality of transversely elongated, gun-barrel receiving cam slots to guide the distal ends of the respective gun barrels. Each distal end of the gun barrel is free within the length of its cam slot, but does remain in a neutral position in said slot when the gun is not firing. During firing, gun vibration, centrifugal force and recoil motion combine to produce an apparently random cantilevered movement of the distal end of the gun barrel within the length of its slot and, thus a random barrel dispersion.

Abstract: A gun is described having a feeder, for a gun bolt, accomodating two independent trains of ammunition, and having two sets of sprockets and articulated feed arms for positively advancing each round in sequence transversely onto the face of the gun bolt.

Abstract: A fuze for a round of ammunition is provided wherein the gun voltage used for initiating the primer is also used to contemporaneously charge the power supply capacitor.

Abstract: A fire control system is provided utilizing a laser range finder mounted directly on the gun turret.

Abstract: A gun and ammunition system is provided which utilizes the difference in density between the combustion gases and the charge of liquid propellant as the source of energy for the injection of propellant into the combustion chamber.

Abstract: A gun is provided having an operating mechanism which receives and stores energy from the gun housing during the recoil of the gun and which subsequently utilizes the stored energy in two distinct phases during the counter-recoil of the gun.

Abstract: A drum ammunition system has drum partition which ensure a rotation of the case about its own longitudinal axis within the drum partitions as the case is advanced parallel to the drum longitudinal axis along the drum partitions by the helix.

Abstract: An ammunition handling system is disclosed having a helical fin of substantially folded plate cross-section made from continuous rectangular ribbons of stock material.

Abstract: An L-shaped seal, for a gun firing caseless ammunition, is captured in and to the chamber of the gun, and is preseated against the surface of the bolt by plastic deformation effected as the gun bolt is rammed into the chamber.

Abstract: A turret assembly is disclosed which is journaled in a bull ring and driven by a drive box which is mounted on a hinge pivot shaft and which shaft is rotated in response to rotation of the turret with respect to the bull ring.

Abstract: A gun drive system is provided wherein recoil motion is used to pump hydraulic liquid into an accumulator, which in turn, on demand, drives a hydraulic motor and the thereto coupled gun, discharging into a low pressure reservoir, which in turn, resupplies the pump chamber upon counter-recoil motion.

Abstract: A cradle is provided for use in a train of cradles in a constraining chute which has a universal joint intercoupling adjacent cradles. A joint is provided by a truncated male sphere on one cradle and a slotted female sphere on the next adjacent cradle. Each cradle is made in one piece and is provided with one male and one female sphere.