Abstract: A method and an arrangement for optically representing information on a transparent projection surface using several projection modules and using through-light projection. The method and arrangement are both cost effective and ensures that an observer viewing even a large display of information is provided with a bright, contrast, homogeneous image. Each projection module is formed of a light source with a divergent beam radiating through a controllable light valve and a projection surface arranged behind it. The distance between the light valve and the projection surface is chosen in such a way that the image parts projected by adjacent modules border gaplessly to each other on the projection surface.

Abstract: An induction cooking heater includes at least one inductor, a high-frequency current generator and a magnetic circuit located beneath the inductor. The reluctance of the magnetic circuit is calibrated so that the magnetic circuit gets saturated from a predetermined temperature lower than the maximum permissible temperature for the inductor. A plate made of non-magnetic, electrically conductive material located beneath the magnetic circuit, gives rise to an increase in current in the inductor when the magnetic circuit starts getting saturated. The generator is then controlled by a regulator for limiting the value of the current in the inductor to deliver lower power to the inductor.

Abstract: A device integrated on a chip of a semiconductor material is disclosed which comprises an NPN bipolar transistor and an N-channel MOSFET transistor in an emitter switching configuration, both being vertical conduction types. The bipolar transistor has its base and emitter regions buried; the MOSFET transistor is formed with an N region bounded by the base and the emitter regions and isolated by a deep base contact and isolation region. To improve the device performance, especially at large currents, an N+ region is provided which extends from the front of the chip inwards of the isolated region and around the MOSFET transistor. In one embodiment of the invention, a MOSFET drive transistor is integrated which has its drain terminal in common with the collector of the bipolar transistor, its source terminal connected to the base of the bipolar transistor, and its gate electrode connected to the gate electrode of the MOSFET transistor in the emitter switching configuration.

Abstract: A gravity-convyor roller with two longitudinal spars (1) extending mutually parallel, in which a plurality of rollers (2) are held rotatably and which are connected to one another via connecting parts.

Abstract: Meltblown thermoplastic fibers are cooled by microsized water droplets produced by airless ruby nozzles. The droplets have an average diameter of less than 20 microns.

Abstract: A method and system for controlling admission to a packet switched radio channel (PRCH) is provided. A PRCH admission control function evaluates admission requests for users requesting admission to a PRCH. The admission requests each contain a priority value and an estimated data traffic for the requesting user. If the estimated data traffic from one or more packet calls currently using the PRCH and having a priority equal to or higher than the priority of the requesting user, plus the estimated data traffic required by the requesting packet call are less than a maximum tolerable traffic level, the packet call is granted admission.

Abstract: Elastomeric polypropylenes modified by grafting and blends thereof with isotactic polypropylenes modified by grafting, and the use thereof as compatibilizers or adhesion promoters for blends and metal composites.

Abstract: The present invention comprises a hinge strap assembly including a torque rod spring assembly having a torque rod. The torque rod has a pair of end portions connected by a convoluted portion. The convoluted portion has a plurality of legs connected by at least one U-shaped bight portion. A slider block and/or pivot block may be clampingly mounted on the convoluted portion to vary the stiffness of the torque rod spring assembly. The hinge strap assembly may include a hinge box, a hinge strap and a single convoluted torque rod which connects therebetween. Alternatively, the hinge strap may be boxless having a hinge strap and a torque rod upon which the hinge strap is pivotally mounted. An end of the torque rod may be directly affixed to the rear shelf thereby eliminating the conventional hinge box. An insert may be used to pivotally mount the torque rod within the hinge strap.

Abstract: The technical field of the invention is that of making surgical materials implantable in the human body. The extender device (2) comprises at least two independent resilient members (8) each having at least one end fixed to at least one of two fastening members (7), enabling the device (2) to be fixed in a living tissue along the edges (13) of an area of the tissue that is to be treated. The edges are opposite each other in the direction in which they are moved towards each other at least by the resilient members and the device further includes a common support (9) to which the opposite ends of said resilient ends (8) are connected. The members (8) deform and move relative to the common support (9) so as to entrain the fastening members (7) over the support, urging them towards each other.

Abstract: The disclosed document feeder apparatus includes a document drive that comprises only a single line of feed rollers with a simple skew adjustment system. This drive is shown incorporated in a cassette-loaded automatic document feeder ("ADF") that is attachable to an existing independent engineering document copier in a non-intrusive manner. The cassette can be loaded, either when positioned in the ADF or at a location remote from the ADF, with a stack of large engineering documents of mixed media and varying sizes; and it is even possible for the cassette to carry a document several yards (meters) long. Documents are fed serially from the top of the stack through the ADF's document flow path by the document drive which is centered for alignment along a line positioned parallel to the document flow path.

Abstract: Macrophages have been developed, which possess at least one of the following properties:their cytotoxic activity without IFN-.gamma. is increased by about 20 to 30% with respect to standard macrophages, and is preferably of about 70%;their cytotoxic activity with IFN-.gamma. is increased by about 20 to about 40% with respect to standard macrophages, and is preferably of about 93%;deactivation of the cytotoxic activity following activation of IFN-.gamma. is such that sixty hours after activation with IFN-.gamma., the residual cytotoxic activity is at least 30%, preferably about 55%, of the maximum cytotoxic activity presented by the macrophages due to IFN-.gamma. activation, with said cytotoxic activity being measured as a percentage of the inhibition of 3-H thymidine incorporation by target tumoral cells, particularly U 937 cells. The macrophages are prepared by culturing healthy human monocytes and lymphocytes in a culture medium containing 1,25-dihydroxy vitamin D.sub.3 and GM-CSF.

Abstract: The invention provides novel catalyst compositions, useful in the oxidation of hydrocarbons with air or oxygen to form hydroxy-group containing compounds and in the decomposition of hydroperoxides to form hydroxy-group containing compounds. The catalysts comprise transition metal complexes of a porphyrin ring having 1 to 12 halogen substituents on the porphyrin ring, at least one of said halogens being in a meso position and/or the catalyst containing no aryl group in a meso position. The compositions are prepared by halogenating a transition metal complex of a porphyrin.

Abstract: A method and arrangement for establishing networks of electro-optical display-field modules. Mechanical connection technology is provided for the network by direct or indirect coupling of the transmission and reception devices provided in the individual display-field modules. The transmission of information is performed over an optical bus system established by the transmission and reception devices of adjacent display-field modules.

Abstract: A program-controlled sewing or embroidery machine comprising a stitch-forming device (2), an integrated microcomputer (4), at least one memory (16, 17) and at least one data interface (5), as well as a keyboard (12) and a display (11) for entering and monitoring or checking values for program control.

Abstract: A device for forming bows from a ribbon which includes a base plate and a pair of uprights mounted on the base plate. One of the uprights is resiliently biased toward the other upright for grippingly engaging portions of the ribbon inserted therebetween to hold bow loops formed from the ribbon in place while forming the bow. A tie wire is placed between the uprights for securing the portions of the bow loops retained between the uprights before removing the assembled bow loops. The uprights have opposed narrow edges to effectively grip the ribbon positioned therebetween. In one embodiment of the invention, the uprights include spaced upright plates to receive the tie wire and a forming arm which moves the portions of the bow loops between the uprights toward the base plate.

Abstract: Fuel injection system for an internal combustion engine with direct fuel injection, with an electromagnetic control valve for pressurization of a medium-pressure space, and a hydraulic amplification plunger comprising a medium-pressure plunger adjacent to the medium-pressure space and a high-pressure plunger adjacent to a high-pressure space, which latter is connected to a fuel delivery line on the one side and a nozzle space surrounding the fuel needle on the other side, the high-pressure space connecting to a fuel bypass line in at least one intermediate position of the high-pressure plunger. To improve rate shaping, especially at the beginning and end of injection, the proposal is put forward that in addition to the high-pressure plunger a pressure-dependent bypass valve be located in the flow path between the high-pressure space and the fuel bypass line, which bypass valve opens the flow connection between high-pressure space and fuel bypass line for a narrow range of pressures in the high-pressure space.

Abstract: In order to operate the closing means of a double plate injection moulding machine including a fixed and a movable mould plate, the closing means comprising at least one pump (22), at least one high speed cylinder for a high speed stroke and at least one closing cylinder (10) for a closing stroke with a nominal closing force, whereby the closing cylinder (10) includes a double action piston (7) in which both piston faces (13, 14) are the same size and which divides the interior of the closing cylinder (6) into two cylinder sections (8, 9) which are hydraulically connectable via hydraulic lines (21, 22) and a valve (26), the following method is carried out: during the high speed closing operation using the high speed cylinder (3), both sides of the piston (7) of the closing cylinder (10) are pressurized with an equal, high pressure which is as high as or higher than that required to obtain the required nominal closing force, whereby on moving the piston (7) of the closing cylinder (10) in the closing direction

Abstract: A sunvisor comprises a body, an attachment device for pivotally attaching the body to an automobile structure, a support releasably engageable by the body, and weakening structure for facilitating disconnection of the body from the attachment device and for the support in the event of collision, the weakening structure including a first weakening groove provided in the region Of the attachment device, and a second weakening groove provided in the region of the support.