Abstract: The invention relates to a drone-type missile for combatting ground targets from the ground, particularly for the use against targets which emit electromagnetic rays, such as radar stations; with built-in target-seeking head, guidance system, self-propulsion and take-off assist, preferably a booster rocket.

Abstract: A deformable plastic wad for shot cartridges for hunting and shooting inces a reticular cushioning structure symmetric with respect to the axis of the wad, including portions located on planes parallel and portions located on planes perpendicular to the axis, the first mentioned portions being adapted to resist axial loads and the second mentioned portions being adapted to bend in two opposite directions, at least some of the first mentioned portions being symmetrically located in the vicinity of opposite edges of the second mentioned portions.

Abstract: An angle iron forms two sides of a right isosceles triangular housing. These sides are each apertured and the apertures are provided with metal-framed lens plates which bolt onto the housing sides. Preferably, in one instance the lens material is mounted in the plate for ease of access to the interior of the housing and in the door instance the lens is mounted in the aperture and retained by the frame plate. A fluorescent lamp tube assembly is received inside the housing for providing illumination through both lenses. Access thereto is via removal of a metal-framed lens plate. The housing has mounting elements which permit a user to flush mount the housed light source, e.g. on a mining machine.

Abstract: A substantially flat and disc-like shaped sound transducer for sensing sound waves in a fluid transmission medium and having directional and omnidirectional response characteristics to the sound waves. The sound transducer having a circular vibratile plate divided into quadrantal portions and having a surface adapted to be coupled to the transmission medium for providing sound wave motion in the portions dependent upon, and in response to, sound wave travel in the transmission medium and having a plurality of electroacoustic transducer elements coupled to the quadrantal portions of the vibratile plate for providing electrical output signals in response to the wave motions in diametrically opposed quadrantal portions. The sound transducer responding to incident sound waves having wavefront travel directions, in the transmission medium, substantially parallel to the coupled surface.

Abstract: A self-propelling projectile comprising a projectile body at the normally forward end of said projectile, a propellent charge at the normally rearward end of said projectile, and a primer element located between the ends of said projectile for ignition by side firing or percussion; there being means for maintaining said components in integrated relationship and with communication between said primer elements and said propellent charge whereby upon explosion of said propellent charge the force of the latter will be directed against the base of the projectile body.

Abstract: An improved incapacitating projectile to replace the conventional lethal bullet in the corresponding cartridges for various smallarms in general use, notably including police sidearms. In this projectile, propelled by a conventional smallarms powder charge, a suitable volume of propellant powdergas is admitted upon firing to a chamber inside the projectile, and is transmitted retained within the projectile chamber to the target. As target impact retards the projectile body, a piston in this chamber travels forward, impelled by its own momentum, ejecting this hot powdergas--further re-heated by compression and friction--through a "pinhole" aperture in the projectile's nose, upon its human or animal target.Because this arrangement incapacitates instantly by inflicting an intolerably acute localized burn, the projectile body may be made of material of mass low enough to prevent or minimize the possiblity of a serious penetrating or blunt-trauma wound.

Abstract: First and second fixed light sources each comprising a lamp and an elliptical reflector radiate light onto first and second plane mirrors which reflect the light onto an original document. A drive means rotates the first and second reflectors in an interlocked manner such that the reflected light therefrom scanningly sweeps across the document in superimposed relation. The axes of the elliptical reflector are arranged so that the edges of the document are illuminated with greater intensity than the center thereof.

Abstract: Improved ultrasonic cleaning of large surfaces is achieved by modifying conventional transducers of either the cylindrical or piston vibratile type so that the transducer vibratile element is brought in closer proximity to the surface being cleaned. For efficiently cleaning the wall surface of a circular water-filled tank, such as a toilet bowl, a ceramic disc operating in the planar resonant mode is provided with an acoustic transmission line comprising a solid annulus bonded to the periphery of the ceramic. The radial dimension of the annulus is equal to one-half wavelength of sound in the material at the frequency of operation. The annulus serves as an acoustic transmission line to extend the peripheral vibrating surface of the ceramic to a region closer to the wall of the tank. The transmission line also increases the radiating area of the transducer which achieves increased sonic power density in the vicinity of the wall surface.

Abstract: A device for conditioning expended shotshells comprising a support having one end thereof adapted to be connected to an apparatus for imparting vertical movement thereto. A swedge is secured to the support member and extends therefrom adapted for insertion into the expended shotshell to open the partially crimped end thereof and to remove the primer from the shell. The support includes a cup-shaped member having a ring-shaped spring mounted therein which is adapted to embrace the exterior surface of the crimped portion of the shotshell when the swedge is inserted into the shotshell. The spring smooths the crimped portion of the shotshell to facilitate subsequent loading of the shotshell.

Abstract: Slip cast, fused silica shields such as radomes and antenna windows with ir pores filled with graded-Z radiation absorbing particles, give protection against radiation damage, improve the ablation characteristics and do not impair the microwave properties of the shielding.

Abstract: 1. A cartridge including a substantially rigid extractable case having at e of its ends a head formed to receive a propellant and to provide a primer support adjacent to said propellant, a projectile releasably coupled to the other end of said case, a piston engaging an inner end of said projectile and extending into said casing, said piston having a shoulder near its inner end, a base cup extending into and releasably coupled to said head, said cup enclosing the inner end of said piston with said end spaced from the bottom of said cup, and seal means between the rim of said cup and said shoulder, a second shoulder on said piston in front of the first shoulder, and a shoulder in said case for cooperation with the second mentioned shoulder on said piston in deceleration and deformation of said piston.

Abstract: Propellant charge device for recoilless weapons of the type having a barrel open at both ends with the propellant charge device being positioned behind a projectile and insertable into the front end of the barrel. The propellant charge device includes an elongated casing having a powder charge portion, a cavity portion and a tamp portion axially sequentially arranged within the casing and extending from the front to the rear thereof. The casing has a length such that it extends within the barrel of the weapon from the position thereof behind the projectile substantially over the entire length of the barrel.

Abstract: An ultrasonic wave transducer which can generate a convergent ultrasonic sound beam. The transducer comprises liquid contained in a housing, a piezoelectric material in said liquid, and interdigital electrode arranged on the surface of said piezoelectric material, an alternating voltage being applied to said interdigital electrode.

Abstract: An improved shell reloading machine in which a swinging toggle linkage positioned below the tool head and shell carriage permits the incorporation of a swaging operation for the preparation of the primer cavity and the addition of an indexing mechanism for the automatic advance of the shell plate.

Abstract: A trigger switch for portable tools that provides safety disconnect under contact-weld conditions. The switch is a manual close, return spring open, double-snap type wherein the actuator acts on a double-inclined surface of a cam to snap the switch contacts closed or open as the actuator passes the center high point of the cam in one direction or the other. The safety disconnect feature provides in series with the switch contacts a connector biased to flip open that is normally held closed by actuator reactance force on the cam in combination with tripping means therefor. This tripping means includes coacting means between the cam and a contact carrier on which the cam is normally spring-restrained from shifting in the switch opening movement direction of the actuator.

Abstract: To uniformly load and orient predetermined charges of shot in shotshells having limited volume, an automatic loading machine meters the charges into the shells in a series of successive increments each sufficient to form only a single layer. A shell-supporting rail of the machine is subdivided into segments which are oscillated by cam and lever means to orient each successive increment of shot into a regular, compact layer.

Abstract: A sonic motor comprising housing means with a closure at each end thereof and having an axially extending cavity therein, with a transmission member having spaced apart surfaces with a cylindrical output end the diameter of which substantially matches the diameter of said cavity. Coupling means connects the transmission member to the housing means so as to maintain the output end of the transmission member in energy transmitting relationship to the housing means, and transducer means is connected to one of the surfaces on the transmission member substantially centrally thereof to provide longitudinal mechanical vibrations thereto, so as to cause the transmission member to vibrate in a radial mode such that the housing means in the area of the coupling means is radially vibrated. The motor is also adapted to be self powered for use in underwater applications.

Abstract: An operating device for an electric circuit breaker comprises a closing spring and a rotatable spring-controller mounted for rotation between first and second dead-center positions with respect to the spring. The spring is charged by transmitting rotational forces to the spring-controller through a main pawl mounted on the spring-controller and an abutment on a rotatable driving member. The main pawl is released from driven engagement with the abutment at the end of a spring-charging operation. Normal circuit-breaker closing is effected by allowing the spring to quickly discharge after a charging operation.A manual slow-close operation of the circuit breaker is effected through an auxiliary pawl mounted on the spring-controller in a position angularly-spaced from the main pawl. During normal spring-charging and discharging operations, this auxiliary pawl is prevented from engaging the abutment on the driving member.

Abstract: 1. In the process for preparing a rocket motor, the improvement which comprises applying a layer of an uncured organic material capable of being cured to a rubbery material, to the interior combustion chamber wall of a rocket vessel, partially embedding powder grains in the exposed surface of said uncured material before solidification, thereafter curing and solidifying said uncured material, whereby a rubber-base liner is formed having one surface firmly adhering to said wall and said powder grains firmly adhering to the exposed surfaces of said liner, with a portion of each powder grain protruding from said liner, filling the lined portion of the chamber with a thermoplastic propellant charge, and solidifying said propellant charge, whereby a firmly adhering bond is formed between the solidified propellant charge, the powder grains and the solidified liner.

Abstract: Electromechanical transducer includes a magnetostrictive core formed of a superimposed stack of individual plates disposed within a cylindrical protective sheath and having a coil wound thereon in longitudinal direction thereof, the plates having the shape of a circular disc formed with slots therein which leave open an area central to the disc that corresponds to the cross section of the coil and are disposed alternatingly offset from one another at a given angle so that the stack formed by the individual plates is in contact with the inner surface of the protective sheath over the entire periphery thereof.