Abstract: Multiple use grenade, characterized in that it principally consists in the combination of a telescopic grenade (2) of a type in itself know, for example a grenade capable of being launched with the assistance of a rifle, and a fuse-plug (1) for a hand grenade, also of a type which is known.

Abstract: Process for measuring lengths by means of a photosensitive network camera, characterized in that the process consists in integrating the video signals (V) over all or part of each of the scan lines (BI); following the evolution of the integral (I) during successive scans (BI) in the vicinity of the edges (9); and precisely locating the points in the integral curve (I) corresponding to the edges (9) in the image (8) of the object (1) to be measured.

Abstract: Anit-vehicle grenade of the type comprising a head (1) extended by a tubular tail (8), an axial bore (6) going through the head and running into the bore (7) of the tubular tail (9), characterized in that, between the safety device (3), respectively the detonator 4 placed assymmetrically with respect to the axis A--A of the grenade, on the one hand, and the hollow charge (2) of the grenade, on the other hand, means of transmission of the shock wave caused by the detonator (4) are mounted allowing to obtain a firing that is symmetrical about the axis of said hollow charge (2).

Abstract: Longitudinal magazine for individual weapons such as, submachine gun, rifle, machine-gun and similar, of a type that can be mounted on the upper part of the weapon and in the axis of the frame, characterized in that this magazine mainly consists in a first part (3) formed by a tube forming the magazine as such and in which the cartridges (5) are being stored with their longitudinal axis perpendicular to the longitudinal axis of the magazine (2); a second part (4) consisting in a transfer element (34) showing on both sides an oblong port respectively (32-46), mutually related with two skews (41-42) stretching over an angle of 90 degrees, one of these ports (32) constituting the connection between aforementioned parts (3) and (4) while the second port (46) constitutes the connection between aforementioned part (3) and the weapon (1) with which the magazine (2) cooperates; and in means (54) allowing for the transport of the cartridges (5) inside the magazine (2).

Abstract: Telescopic grenade, characterized in that it features means (29-35) that ensure safety in the transport/storage position and means (22-19-20-21-29) that determine, under the effect of the propellent gasses, a relative transfer between the component parts (5-15) of the tail (2).

Abstract: Receiver for a hunting gun, characterized in that it consists of the assembly of two shells the outer faces of which are smooth, their inner faces being each previously provided with a profiled reinforcing sheet which is also stamped, the profiles of the said sheets being additionally used for supporting and guiding the conventional parts provided inside the receiver.

Abstract: Device for adjusting the step of the mast of a sailboard or similar, characterized in that it comprises a slider receiving the foot of the mast, the slider being associated with a slide which may be secured to the hull of the board, a friction locking means acting on the slider for securing it relative to the slide and a control member provided for varying the friction of the locking member on the slider, thereby allowing shifting of the latter to the slide.

Abstract: The present invention relates to a connecting device between the wishbone 7 and the mast 2 of a sailboard, characterized in that it comprises a substantially V-shaped element 8 pivoted on each of both arms of the wishbone 7 and intended to surround the mast 2 when hoisting home the clew 6 of the sail 4 on the said wishbone 7.

Abstract: A pocket pistol having a sear (13) provided with a downwardly extending protrusion (18), one side of which is engageable by a lug (19) carried at the end of a trigger rod (10), and the other side of which is engageable by a first safety member (24), the latter movable into and out of position to prohibit or permit the movement of sear (13). The sear (13) also includes a lateral finger (16) engageable with either a smaller cut-out portion (28) or a larger cut-out portion (29) on a pivoted second safety member (27), the latter being continuously urged towards a cartridge magazine housing (2) for permitting or prohibiting movement of the sear (13) when a cartridge magazine is, respectively, present or absent from the magazine housing.

Abstract: The present invention relates to an improvement in racket frames reinforced with a honeycomb, characterized in that it comprises filling up at least one selected alveolus of the said honeycomb with a substance having a density of at least 2 kg/dm3.

Abstract: Rear block for automatic fire-arms actuated by the barrel recoil, of the type having a pad associated with a resilient damping and returning mechanism a second damping stage which includes a thrust cone designed to be engaged with the pad during the recoil movement thereof. The cone engages a radially expansible and axially movable ring, which engages a resilient mechanism. The distance separating the said pad from the said cone is adjustable to provide different recoil adsorption characteristics.

Abstract: The invention relates to a projectile having a head extended by a tubular tail and containing an explosive charge as well as a firing chain for the latter. The tail is made of two telescopic tubular parts, one of which is integral with the head and together with the head carries a first part of the firing chain, the other carrying the remaining part of the firing chain, and guiding means that are distributed over the two parts in order to assign them a determined angular position depending on their relative axial position.

Abstract: A racket of the type formed from a single metallic profile, shaped so as to define the frame, the throat-piece and the tail of the racket, the tail being defined by two mutually parallel ends of the profile, characterized in that the parallel ends are rigidly locked in relation to each other by means of at least one metallic plate disposed substantially along the whole length of the tail. In the handle portion of the racket, a metal honeycomb is disposed between the parallel ends of the profile.

Abstract: A combined function mechanism for an automatic pistol including a magazine and a magazine housing, which mechanism interrupts the kinematic chain between the trigger and the hammer when the magazine is not fully engaged within its housing, thereby preventing operation of the hammer by the trigger, the mechanism also serving to eject the magazine from the housing when the magazine locking/unlocking device is actuated.

Abstract: This barrel is characterized in that it comprises three layers superimposed without any break in continuity of surface contact between layers, namely: an internal layer of a refractory material; a core layer of a material the mechanical strength of which is higher than about 250 MPa at 900.degree. and an external layer of an alloyed steel. The invention relates also to a process for the manufacture of such barrel.

Abstract: The invention pertains to a rifle-grenade, of the type comprising a head prolonged by a tubular shank, the aforesaid head being traversed by an axial bore running into the bore of the aforesaid tubular shank, characterized in that a plug is forced into one of the aforesaid bores, this plug being made from a material the hardness of which ranges from approximately 30 Shore A to approximately 70 Shore D.

Abstract: Loader for a machine-pistol or the like, characterized in that it comprises substantially a prismatic tube closed at both ends and having, in the central portion of one of its longitudinal walls, a loading-feeding port, two symmetrical conveying devices being provided within the said tube and bearing each on an end wall of the latter.

Abstract: Improved pistol of the type comprising a body carrying a moving slideway supporting a barrel and a firing-pin, the device actuating the said firing-pin consisting of a kinematic chain comprising a detent pivoting on the body, levers driving a sear and a hammer pivoting on the body, said hammer being subjected to the action of a spring and controlled by the sear, characterized in that the hammer is mounted coaxially with at least one ring having two stops for the hammer, the ring having a notch engageable by the said sear.

Abstract: Pre-fragmented explosive shell, of the type substantially comprising a head and a body containing an explosive charge, a plurality of balls being housed in an annular space provided for between at least a part of the wall of the aforesaid body and the aforesaid explosive charge, in which each of the aforesaid balls consists of a core made from tungsten or tungsten carbide coated with a thin layer of zirconium.