Abstract: An electrical heating conductor having a resistance wire core and a high temperature-resisting, electrical insulation layer on top of the core, further having a multi-wire layer as a protective conductor, is improved by a layer of a wrapped foil made of a mechanically high strength material such as a polyimid or a polyether ketone or a derivative of either, and wrapped underneath or above the protective layer in order to protect the insulation layer against impacts and squeezing; the foil may be covered with a fluoropolymer coating for chemical protection; the multi wire layer includes a threaded-through high strength thread to hold the foil against the insulation underneath.

Abstract: A waveguide is arranged in radial extension on a support mounted in rotary manner and whose pivot pin is parallel to the laser beam axis. The outer end thereof intersects the laser beam during a rotation of the support and in each case detects a partial beam of the laser radiation. By means of the waveguide, said partial beam is supplied to a detector, which is arranged in fixed manner in the pivot pin of the support. A hollow waveguide or light guide serves as the waveguide. A parallel displacement of the pivot pin of the support is possible by means of a stepping motor to enable the complete beam profile to be determined by a plurality of sections through the laser beam. In place of the stepping motor, the support can be provided with several waveguides of different lengths, distributed with the same angular spacing over the support circumference and which successively supply the detected partial beams to the same detector.

Abstract: At least five planar gradiometers on at least three non-parallel surfaces are used to determine five, linearly independent components of a gradient tensor of a magnetic field.

Abstract: An apparatus for determining the dimensions of an object such as a person uses a video or diskette or still camera, and includes further two projectors for projecting a horizontal raster line pattern at a 45.degree. angle onto the person, so that projected lines as imaged appear in superimposed relation to the person also as imaged; there is an improvement which includes a horizontal overhead mirror or a pair of horizontally positioned overhead concave mirrors, the projectors being oriented so that the raster as projected is directed towards the mirror(s) at a 45.degree. angle to that mirror, so that the projection beam is reflected at a 45.degree. angle accordingly.

Abstract: A polymeric tube is extruded; one or more strands are wrapped around the tube, the strands having a polymeric core and a high strength helical fiber cover; a second tube extruded thereon; at least one of the tubes is cross linked; subsequently the composite tube wall is heated, expanded and cooled in the expanded state; the tube may be cut longitudinally before or after the heating/cooling.

Abstract: A respiratory or respiration hose is made of a transparent or translucent material, e.g. a silicon caoutchouc, the hose has a helical, preferably hollow ridge or bar on its outer surface bonded thereto by a silicon based adhesive; heating conductors means are arranged on a foot portion of the ridge, on one or both sides of the foot portion of the ridge and are adhesively bonded to the hose; a return conductor may run through the hollow ridge interior; heating current is fed to the heating conductor which is provided in parallel or serial connection.

Abstract: The invention relates to a process for Fabry-Perot spectroscopy using a spectrometer in the radiation path of which there is a radiation source, two successive Fabry-Perot interference filters through which the radiation passes, a blend of substances to be examined and a detector. The optical layer thickness of the first Fabry-Perot filter F1 is set to a given value and the optical layer thickness of the second Fabry-Perot filter F2 is modulated. The resultant interferogram as a function of the layer thickness is characteristic of the substance to be examined. The interferogram received at the detector D is converted by a mathematically transformation into a spectrum as a function of wave numbers.

Abstract: An immersion nozzle (2) for metallurgical recipients, in particular for a reservoir arranged upstream of a continuous casting ingot mould, has an interchangeable discharge pipe (2) which can be attached in a leakproof manner on or in a perforated brick (1). To improve the flow conditions and hence the efficiency of the casting, the inlet side of the nozzle comprises an upper elongated section (12) in the form of a tubular shaft (11) which expands conically downward to a given plane and which is narrow in a plane perpendicular to the given plane. A second elongate section (13) ends in an elongated transverse flow section of given dimensions.

Abstract: A telescopic tower for suspension from an overhang trolley, crane, or the like, have a lowermost tube for carrying a work area or platform, is constructed in that the tubes are of polygonal cross-section with inwardly, as well as outwardly projecting rails in corners of the polygon, rollers on the respective tubes run on these rails.

Abstract: A plant carrier for cultivating plants, seedlings, seeds, or the like, has at least one layer of plant-growing material, an upper layer of natural fiber, and a lower layer of natural fiber sandwiching the plant growth layer in between, and thread means for stitching and sewing the upper and lower natural fibers layers together is improved by natural fiber layer means combining the upper and lower fiber layers along at least portions of their edges to produce a hose-like cover that is filled with said plant layer of plant growing material.

Abstract: A heat recoverable, shrink-object is made from a mesh or web assembly having thermoplastic threads that extend in a first direction, and second threads that are essentially non-stretchable and run transversely to the first threads, that assembly is embedded in a polymer matrix which is then crosslinked; the thermoplastic threads do not crosslink; the matrix with embedded mesh or web is then heated to a temperature above the crystallite melting point of the polymer matrix and the thermoplastic threads are stretched into an elongated state at that temperature, and the stretching is maintained during subsequent cooling until a lower temperature including room temperature is reached and stretching is no longer needed to maintain said elongated state.

Abstract: The ignition of spark gaps for the production of shockwaves in the contactless comminution of concrements, using a capacitor discharge is improved by providing at least for some time prior to the ignition proper a voltage much smaller than the breakthrough voltage for producing a small current between the electrodes that prepares a channel in the discharge gap.

Abstract: An interferometric analyzer for the detection of substances having a structured absorption spectrum such as a periodic or quasiperiodic absorption line pattern, within a gas blend, and comprising a source of radiation for directing radiation into a radiation path that includes a container, cell or the like which contains the substances to be detected, the path includes further a filter system, which includes an electrically or temperature controlled Fabry Perot element such that the spacing between the transmission lines of the interference corresponds to spacing of absorption lines of different substances for different absorption bands of these substances; and a dispersion filter each circularly variable or another Fabry Perot filter is positioned in the radiation path for selecting a respective spectral region as far as a particular substance is concerned by means of the controlled disperging element.

Abstract: The invention improves the reconstitution of video signals which are transmitted as sequential luminescence fields (odd and even), whereby, e.g. the relative position of the fields is determinative of color content. The three color and channel reconstituted signal is composed of one on-line signal, one stored and recalled signal, and one interpolated signal.

Abstract: The roll and roller has a core with a threaded on sleeve of differently radially high threads such that the crown or head of one thread reaches the bottom/foot of the thread groove way of the other, but not vice versa so that a spiral channel is established while the abutting foot/crown configuration is welded indirectly as a weld layer is deposited onto the outer surface of the sleeve.

Abstract: A lithotripter having a shockwave generator having a cavity filled with water, further having an ultrasonic, locating transducer mounted by means of a holding device which includes metallic inner and outer shells each having a large acoustic impedance as compared with water and an acoustically attenuating layer interposed between the two shells; the shells are spaced from each other so that the shockwaves will be eliminated by interference.

Abstract: An apparatus is provided for maintaining a particular temperature differential and/or adjustable temperature gradient between two, possibly variant domains on a first glass, ceramic or synthetic plate, includes a first active thermal element (heater or cooling element) in contact with that plate for adjusting the temperature of a first domain; a ferrofluid, liquid metal, solder etc. droplet and made of a material that has a thermal conductivity higher than the thermal conductivity of the plate, rests on a second plate and in thermal contact therewith; a second active temperature means (heater or cooling element) on the second plate determines the temperature of the droplet; and the droplet is flattened to different degrees to thereby vary the area of contact between the top part of the droplet and the first plate.

Abstract: A method for navigation and updating of navigation for aircraft uses range image processing and a reference store, segmentizing the range image data are segmentized in order to obtain a particular pattern of type features for purposes of classifying particular types of objects across which the craft flies; extracting particular signature features including localized elevational jumps and determining the position of the craft by correlating a plurality of features and their spatial orientation to each other as extracted with corresponding stored reference information in order to provide a maximum fit that is indicative of deviation of the flight from a flight path as identified by the reference information.

Abstract: A terminal case for straight or angled off cable configuration as it extends from a plug connector, particularly for use in aircraft, is provided to have an integral or separate threaded ring and a transition piece of open cross section having sector-like contour, the sector angle decreases away from the ring towards a cable catch. The purpose thereof is to increase the strength of the configuration so that even if the parts are made of synthetic, strength values become comparable with known terminal cases made of metal.

Abstract: A reforming process for the production of hydrogen or synthesis gas is improved by a preparatory process including the preheating of gaseous hydrocarbons within a heat exchange zone into which water is sprayed to obtain concurrently evaporation of water and preheating of the water vapor as well as mixing of the hydrocarbon gases being preheated with the steam as produced, and preheating of the entire blend will continue prior to charging the reformed process.