Abstract: Sighting system for hand held grenade launchers including a rear leaf sight aving two sets of range indicia markings. A first front sight is spaced from the leaf sight for short to intermediate sighting alignment with one set of rear sight markings and a second front sight is offset from the first sight and spaced from the leaf sight for intermediate to long range sighting alignment with the other set.

Abstract: Stripper/De-linker assembly for disintegrating links of ammunition belts ch is located in the feed tray and which rearwardly strips and delinks in the feed tray, links, each of which totally circumscribes the corresponding cartridge or round and remains on the cartridge or round during firing thereof.

Abstract: A bolt assembly on a rim fire adapter to permit a rifle to use smaller amition wherein an improvement is made to require cocking of the rifle hammer before the bolt can chamber another round and thus avoid the safety hazard of double firing.A bolt extension block having a pivotal extension and extended hammer cocking surface is added to the rear of the bolt to achieve hammer cocking with less bolt recoil travel to insure that doubling or double firing will not occur.

Abstract: An easily employed, reliable, rapid response and simple multiple feed sys for selectively feeding various belts of varied types of ammunition through the same gun. A round selector cam pivots the rammer on the bolt carrier to a position for chambering cartridges from the selected belt. A dual feed mechanism advances the cartridges from the selected belt while those from the non-selected belt are held ready but not advanced.

Abstract: An ammunition belt comprising a plurality of joined plastic strips of a petermined length, the strips being of different tensile strengths, one of the strips being a driven strip carrying the dynamic force load of the moving belt and weight of the ammunition being fed into the weapon and the second strip of lower tensile strength formed into a plurality of ammunition receiving loops or apertures, the looped strip including a plurality of spaced transverse perforations, one perforation being located adjacent each loop to permit transverse tearing of each loop while under a predetermined tension whereby each cartridge is sequentially removable from the belt.

Abstract: An automatically recyclable burst control mechanism for weapon systems wh is responsive to trigger action to actuate automatic recycling of the burst control mechanism to its initial position, independent of the number of rounds fired in each preceding automatic burst.

Abstract: An articulated belt for supporting and moving a plurality of elongate parallel objects such as gun cartridges disintegrates just as the cartridges are extracted therefrom at the gun. The belt consists of separate links, each link comprising two interlocking elements, one of which applies holding force to a cartridge while the other is in tension resulting from pulling force applied to feed the cartridges to the gun. The cartridge-holding element has no tensile force applied to it by the tension element.

Abstract: A mounting system for heavy caliber rapid firing weapons has a sensor ressive to gun motion during recoil. The sensor provides an electrical signal used to adjust the rate of gunfire so that counter-recoil movement of the gun upon firing each round is substantially canceled by firing the next subsequent round, whereby oscillatory shock loads transmitted through the mounting structure are greatly attenuated and converted to a relatively constant load value.

Abstract: An electrochemical elapsed time meter indicator with round counter circui for a gun to indicate past usage whereby maintenance and repair or replacement procedures will insure greater reliability in critical field use. The meter, working on an electroplating principle as a function of current and time, may be activated by gun use such as by a switch on the gun trigger, an inductance or piezoelectric transducer in the buffer, a recoil operated microswitch or as part of the circuit in externally powered guns. The meter preferably is color coded to indicate weapon condition, area of use, and replacement or maintenance required.

Abstract: A lightweight one man portable automatic gas-operated weapon system for intry use having symmetrical forces applied to recoiling parts by use of two parallel gas pressure actuated rods acting in unison. An integral sprocket feed system is actuated by the recoiling parts and avoids gross asymmetrical force movements about the weapon's center of gravity resulting from shifting ammunition weight. A dual tube receiver and dual gas system is featured in the weapon. Major weapon subassemblies comprising modules are operatively interrelated to facilitate replacement during field use of the weapon.

Abstract: A flower pot having an inner chamber containing a plant or stems of flowers and an outer container into which water may be poured. At the bottom of the inner chamber is an opening covered with a porous plug to permit constant seepage of water into the inner chamber for automatically and continuously supplying water to the contents of the inner chamber.

Abstract: Vehicle Flow Direction Vanes for reducing the rear vacuum induced drag on moving vehicles and thus increase mileage performance on the order of 20 percent. Aft, and forward, mounted flow direction vanes are attached to flat-back vehicles to deflect air flow into the drag producing reduced pressure area rearwardly of the vehicle. The basic shape of the vane is based upon the criteria that a line tangent to the curved surface at any point does not exceed an angle of 30.degree. to the main airstream to avoid local separation.

Abstract: An improved compressed fluid ball projecting machine convertable for baseball and tennis practice. Improvements are in maneuverability, oscillation of the tennis barrel and immobility of the baseball barrel, remote control power for coaching options, replaceable and interchangeable barrels, variable timer speed control and a reliable hopper and feed system to enable firing of up to two hundred tennis balls unattended and without malfunction. Regarding the oscillation or lack of oscillation of the barrel, an actuator rod mounted on a rotatable disc causes such oscillation. When this rod is removed and the barrel clamped, this oscillation is eliminated. Concerning the variable timer control, such control is varied by two relatively movable rotatable notched discs. These dics contact a valve actuating mechanism and permit opening of a valve operated thereby only when the notches of the pair of discs are aligned and in contact with the valve actuating mechanism.