Abstract: The invention discloses an improved conventional munition employing a dual omblet configuration including dual shaped charges and a design which uses a Misznay-Schardin end plate with a shaped charge. Both bomblets are separately enclosed by fragmenting warheads that are positioned in tandem. the tandem bomblet design results in a nesting arrangement of the fragmenting warhead, or sub-munition, to produce maximum packaging efficiency. A forward sub-munition of a tandem bomblet will nest within a cavity of a shaped charge of an aft sub-munition.

Abstract: A method for the measurement of mass spectra by three dimensional quadrup fields (QUISTORs) is presented, in which the ions are mass-to-charge selectively ejected by a selected nonlinear resonance effect in an inharmonic QUISTOR. In order to enhance scan speed and mass resolution, the ejection of a single kind of ions can be confined to a very small time interval, either by the generation of ions within a small volume outside the field center, or by an excitation of the secular amplitudes by an additional RF voltage across the end electrodes, shortly before the ions encounter the sum resonance condition. An instrument for this method is described.

Abstract: The Reactive Bed Plasma is a novel air purification and material processing evice which may efficiently treat both toxic chemicals and hazardous aerosols. The Reactive Bed Plasma device embodies an active alternating current discharge plasma permeating a dielectric packed bed. Advantages of this device include an increased power efficiency by the elimination of dielectric barriers (characteristic of ozonizer devices); a selectively increased residence time of contaminants in the active plasma zones through interaction with the packing material (analogous to chromotographic separations); also a reduced size and power consumption while maintaining high processing efficiency.

Abstract: A chemical agent detector having a pair of vapor/aerosol chemical agent dctor cells mounted with a lithium battery in a detection cell module. A liquid agent detector having a hinged plate is attached to an electronic system which includes a signal processor that energizes a plurality of warning LED's and a horn in response to energization of selected agent detectors. An air pump is mounted on the housing for the electronics to force air across the detection cells. The detection cell module is connected to the housing for the electronics. A battery compartment is connected to the detection cell module and includes means for permitting an external power source to be connected thereto.

Abstract: A sighting structure for a weapon such as a rifle, which can hold its alignment to precision, despite repeated recoil of the weapon, is disclosed. The sighting structure is suspended in an elastomer, within a housing, and the sight alignment can be adjusted from outside the housing over two planes by vertical and horizontal set screws. The housing also serves to protect what might be a delicate instrument sight from the elements, by the possibility of enclosing it within the housing, and also providing transparent or opaque end pieces for the housing.

Abstract: A back-up electrical safety device for a land mine is presented which proes an additional 50 to 60 second time delay concurrent with the conventional built-in one minute delay before any detonation is possible. A soldier is therefore afforded an additional assurance of an ear one minute time lag before an accidental explosion could be possible due to premature pulsing of the mines's built-in timer. A Darlington pair RC switching circuit appears electrically in tandem between the internal timer and the various arming means, to doubly insure an approximate one minute override before detonation. This dual safety feature permits hand-emplacement, over gun-launching, of a conventional land mine.

Abstract: In a quadrupole ion store (QUISTOR), a sample is analyzed by increasing the mplitude of the harmonic, or "secular", oscillations of selected stably trapped ions so that they leave the trapping field. In a preferred embodiment, deviations from the ideal electrode geometry are incorporated into the QUISTOR to produce resonance phenomena between the r and z secular oscillations, thereby increasing the amplitude of oscillations in the z direction.

Abstract: An orifice is calibrated by passing air through the orifice and into a tube arrying a water column. The rate at which the water in the water column falls due to the passage of air through the orifice is measured to find the volumetric flow and elapsed time of air passing through the orifice. A computer is then used to subject the volumetric flow and elapsed time data to a regression analysis to produce an equation of displacement as a function of elapsed time. The first derivative of this equation is the flow rate. A correlation coefficient of the equation is printed, and the volumetric and mass flow rates may be printed if desired.

Abstract: The invention provides a novel dual safety fuze for a rocket-launched mine learing linear high explosive charge. The fuze comprises a tubular housing, having a forward section containing two booster charges for initiating the line charge, an intermediate section containing two electric delay detonators, a rotor containing two lead charges positioned between the forward and intermediate sections and a rearward section mounting two axial arming pins, which provide a first and second lock of the rotor in the safe position. A novel rotor spring assembly includes a rotatable shaft, whose one end is attached to a torsion spring for rotating the rotor and other end has a screw-like configuration, which is engaged by a fork-like driver mounted on the first arming pin.

Abstract: A method of detecting leaks within artillery shells, bombs and other munitions is disclosed which involves the permanent in situ insertion within the munition cavity of an electrically resistive surface which varies in resistance with the adsorption thereon of leaking chemical vapors. In a typical embodiment of the invention, the electrically resistive surface is serially connected with an identical surface with an inert coating and the voltage drops across both the coated and uncoated surfaces are measured. Thereby, any changes in the resistance of the exposed surface due to factors other than adsorption thereon of leaking gases, e.g., temperature changes, are appropriately offset.

Abstract: The invention is an adjustable cheek rest for a hand-held weapon, mounted a stock support tube. Specifically, the invention comprises two adjustable tubes with eccentric bores, mounted about the stock support tube so that the stock support tube fits the bore of the inner adjustable tube and the inner adjustable tube fits the bore of the outer adjustable tube. The outer tube functions as the cheek rest. Each adjustable tube may be rotated about its eccentric bore and reversibly locked so as to vary the position of the cheek rest relative to the line of sight.

Abstract: This invention pertains to end constraints for torsion members applicable r use in cannon breech closing mechanisms, vehicle suspensions, etc. To provide torsion members with greater load carrying ability when subjected to large magnitudes of twist, special end constraints are required. The instant invention features end constraints with substantially square or rectangular cavities having a pair of opposing surfaces contoured such as to eliminate or minimize transverse shear within the ends of the torsion member at the region of transition between the active and non-active portions. These contoured surfaces have opposed oblique surfaces diagonally spaced in a transverse direction with respect to the trailing face of the constraints. To facilitate manufacture, the end constraints can be made to feature surface contoured inserts fixedly mounted within the sockets. It should be ascertained that two end constraints are used to apply moments at the ends of a torsion member.

Abstract: A photoacoustic detector includes an evaporation space for receiving an onic vapor. The space is bounded by a window which is transparent to infrared radiation. A spectrometer irradiates the space with infrared radiation through the window to heat the vapor and acoustically modulate it at a frequency corresponding to the frequency of the infrared radiation. The acoustic modulations are picked up by a microphone which produces a signal which is amplified and used to form a characteristic spectrum. In this way gases or liquid in the space between the infrared source and the window can be detected by examining changes in the spectrum.

Abstract: Described is a control circuit or energizing circuit for a series field mr. To limit the surge of inrush startup current to no greater than the steady-state running current, a series string of three thermistors is inserted in series with the motor. The thermisters have negative temperature coefficient, and have nominally equal ratings and values. The circuit has application in motor/blower systems.

Abstract: This invention offers a simple, inexpensive solution to both the dispersion nd orientation problems, and can also be very effective for inducing scanning of the ground in flight of a munition, for target location. A munition, such as a cylindrical body, is provided with two curved, full-length wings or fins attached longitudinally along an upper half of the cylindrical body, both directed concavely against the air flow. (An example is shown in FIG. 1). As munitions so equipped with said wings are dropped and descend through the air of their own power, several effects are achieved. First, the munitions will land right side up. Secondly, dispersal of plurality released munitions will occur and not land lumped-up in a single group for instance. Slots and tabs can be cut in opposite corners of the wings to produce a pin-wheel effect which will improve ground coverage in scanning.

Abstract: A power source converter apparatus that is the structural and functional ivalent of a typical internally stored battery, such as a lithium organic cell. The converter has a shape and size that conforms to that of the battery being replaced. The converter includes a pair of output terminals that can make electrical contact with appropriate elements in the unit in the same manner as did the battery it replaces and a pair of input terminals accessible to the exterior of the unit for connection to an external power source. Internally of the converter body, there is mounted an electronic circuit to be used as a power conditioner and a voltage regulator for performing the proper DC-to-DC voltage conversion to ensure the necessary voltage at the output terminals. A threaded cap is fixed to the converter for use in covering the opening in the battery housing.

Abstract: The series wound, air core (SWAC) homopolar generator includes a pair of ls connected in series with a rotor having a pair of slip rings joined by conductive bars. To reduce eddy currents induced in the slip rings, their radius and axial length are chosen such that the circumferential and axial resistances of the slip rings fall in a bounded region wherein the axial resistance is minimized and the circumferential resistance is maximized.

Abstract: A fabric moisture detector and method is provided. The detector has a supt insulating structure, and a pair of electrodes, which have a pair of opposite faces separated by a gap of selective thickness, such as four inches or ten centimeters. The detector also has a current sensor, for measuring the current through the gap during the application of a relatively high voltage, such as about 10,000 volts to 60,000 volts for a ten centimeter gap. The voltage applied using a ten centimeter gap can be between about 1,000 volts per gap centimeter to 6,000 volts per gap centimeter. The process includes the steps of measuring the gap current during the application of the specified voltage, whereby a dry fabric or bare electrodes yields substantially no current and a wet fabric yields a peak current.

Abstract: A rocket motor casing comprises a tube made of helically wound and cured phite/epoxy resin. A plurality of circumferentially spaced axially extending slits are cut into the graphite/epoxy structure which is subsequently covered by an aramid fiber/rubberized resin system which is hoop wrapped around the outer surface of the graphite/epoxy structure. During gun launching, the motor casing is capable of withstanding inwardly directed circumferential forces which tend to reduce the size of the slits and buckle and bend the aramid fiber/rubberized resin system. This system is capable of withstanding such deformation without failure. After launch the rocket motor is fired which requires the casing to act as a pressure vessel to withstand the outwardly directed forces from the rocket motor. These forces are withstood by the strength of the aramid fiber/rubberized resin system. Sufficient axial strength is provided by the cured and helical wound graphite/epoxy structure.

Abstract: A chemical protective hood is made of nylon/butyl cloth and assembled using t butt and tape method of construction with the joints thereof covered by nylon/butyl tape. The hood has a cap portion with a face piece opening in which is mounted a butyl/natural rubber face piece in sealed relationship with the cap portion. The face piece includes eye lens ports, a voicemitter port and a canister port to accommodate projecting portions of an underlying gas mask. The face plate is elastic and elastically seals with the projecting portions of the face mask. The collar portion extends down from the cap portion and includes an elastic band for slightly constricting the neck portion while a cape portion projects down from the neck portion and includes a pair of underarm straps having elastic portions for holding the cape portion in place. VELCRO piles are attached to the collar portion and cape portion for securing the cape portion up when it is desired to provide some ventilation under the hood.