Abstract: A forging die includes on one face, a half-imprint of a part to be forged such as a turbine engine blade. The die also includes on the face, a device for forming a marking along two directions relatively to which the position of the imprint is defined, the device including two pads protruding relatively to the face and each including two notches defining the two directions. This device preferably includes two pads machined on the die at the same time as the imprint, and each including two notches in the form of a cross.

Abstract: A lift between lower and upper levels of a house includes a cabin and an essentially horizontal platform which is essentially vertically movable by actuating elements arranged thereunder. The actuating elements include at least one pair of rotatably mounted arms pivotally arranged around an axis in the middle part thereof. The free ends of the first arm of one pair are pivotable around a fixed axis and respectively around an axis sliding along the platform. The free ends of the second arm are pivotable around a fixed axis connected to the platform and respectively around a sliding axis. An actuating unit interacts with at least one of the arms such that the pivot axis of the second arm for the platform, the middle pivot axis of the arms of the pair and the pivot axis of the first arm are never aligned.

Abstract: The press of the invention includes a first component and a second component for holding and pressing a workpiece to be processed between them, the first component being driven into translation relatively to the second component by an air cylinder. Thus, the first component is floatably mounted relatively to the second component, said components comprising means for positioning them relatively to each other at the limit of travel. Proper centering of the workpiece between the components, without stresses, may thereby be provided.

Abstract: A lift between lower and upper levels of a house includes a cabin and an essentially horizontal platform which is essentially vertically movable by actuating elements arranged thereunder. The actuating elements include at least one pair of rotatably mounted arms pivotally arranged around an axis in the middle part thereof. The free ends of the first arm of one pair are pivotable around a fixed axis and respectively around an axis sliding along the platform. The free ends of the second arm are pivotable around a fixed axis connected to the platform and respectively around a sliding axis. An actuating unit interacts with at least one of the arms such that the pivot axis of the second arm for the platform, the middle pivot axis of the arms of the pair and the pivot axis of the first arm are never aligned.

Abstract: The present invention relates to a forging die including on one face, a half-imprint of a part to be forged such as a turbine engine blade. The die is characterized by the fact that it includes on said face, a means forming a marking along two directions relatively to which the position of said imprint is defined, said means consisting of two pads protruding relatively to said face and each including two notches defining said two directions. This means preferably consists of two pads machined on the die at the same time as the imprint, and each including two notches in the form of a cross. The invention thus allows visual checking of the positioning of the imprints and of the dies on the platens of the press.

Abstract: The antenna for receiving and/or transmitting linearly polarized signals includes at least a first radiating element (24, 26) circularly polarized in one direction and at least a second radiating element (28, 30) circularly polarized in the other direction. The signals with substantially equal amplitudes supplied by the radiating elements circularly polarized in opposite directions are combined to supply a linearly polarized signal. The linear polarization direction is a function of the variable phase-shift (&Dgr;&phgr;) between the combined signals. A phase-shifter (32) adjusts the polarization direction of the antenna. The adjustment can be automated.

Abstract: This invention relates to a security device for an elevator which operates between two levels, comprised of a cabin (1) closed by a swinging door (2) which opens to the exterior, the cabin (1) moving by translational vertical motion from a lower level up to a booth (3), situated at the upper level and comprising a guard rail (4) closed by a swinging landing door (5) which is normally locked, opening toward the exterior of the cabin (1) by means of an articulation situated on the same side as the door (2) of the cabin (1), the elevator being characterized in that it is provided with means, although all of passive and entirely mechanical type, conditioning the translational vertical movement of the cabin (1) between the two levels, and the locking and unlocking of doors (2) and (5) at these levels.

Abstract: A tracking antenna for non-geostationary satellites is mounted on a three-axis positioner comprising an azimuth axis, an elevation axis mounted perpendicularly on the azimuth axis and a pseudo-azimuth axis mounted perpendicularly on the elevation axis and supporting the antenna. The positions of the axes are controlled by a pointing unit. The method of pointing the antenna carries out the following steps simultaneously when the position of the satellite is such that the elevation axis exceeds a predetermined elevation value: modifying the position of the azimuth axis at constant speed and modifying the position of the elevation axis and the pseudo-azimuth axis to track the satellite.

Abstract: An ovoid container which has two concave halves each with an open end and a closed end. As the open ends of the two halves are connected, the closed container takes on an egg or ovoid shape. The open ends are connected by combining an annular rib of one open end with an annular groove of the other open end. The two closed ends of the concave halves are joined by a press fit of protruding stubs from one closed end into corresponding depressions of the other closed end to form an egg cup that can also be used in a container for collecting eggs.

Abstract: An azimuth-elevation type antenna support comprising a stock and a mounting plate on which the antenna is fixed, the support being mounted on a base relative to which the antenna takes up a cantilevered position, the support being characterized in that the stock (31) comprises: at least one top half-collar (41) disposed around the base (10) and having its arms (46) extending towards the antenna, with a top strap (42) fixed to the top half-collar (41) in order to lock it on the base; a bottom half-collar (43) disposed around the base and having its arms (47) extending away from the antenna, with a bottom strap (44) fixed to the bottom half-collar (43) in order to lock it on the base; and two side risers (45) extending over a certain distance parallel to the axis of the base and each interconnecting the end portion of one of the arms (46) of the top half-collar (41) to the end portion of the bottom half-collar (43) located therebelow.

Abstract: A feed horn comprising a radiating portion having a circular aperture, a transition formed by progressively varying waveguide sections and a flange which provides a coupling with a rectangular waveguide is fabricated from moldable material and designed to be fixed in a support. The radiating portion of the horn is formed by a cylindrical flange having at least two concentric grooves which form two traps.

Abstract: A telecommunications antenna is provided with a reflector having a semi-offset geometry, a feed mounted on a feed source rigidly fixed to the reflector, an antenna pedestal for supporting the reflector and the feed. Positioning of the feed is such that, in respect of a reflector illumination half-angle .beta. as seen from the feed such that 45.degree.<.beta.<55.degree., the offset angle .alpha. (angle between the focal axis .DELTA..sub.Foc and the median ray of the total beam which is emitted by the feed and illuminates the reflector) is 25.degree.<.alpha.<35.degree., the antenna mount being of the azimuth-elevation type known as an az-el mount.

Abstract: A corrugated horn of the exponential type is provided with corrugations whose depth decreases exponentially from the throat of the horn towards its mouth. Such corrugations have the effect of reducing the stationary wave ratio.