Abstract: Methyldichlorophosphane is made by reacting methane with phosphorus trichloride in contact with carbon tetrachloride at temperatures higher than 500.degree. C. To this end, the starting reactant mixture is admixed with 2 to 7 mol % of reaction-initiating carbon tetrachloride, based on phosphorus trichloride; the carbon tetrachloride is reacted to an extent of 50 to 80% by varying the reaction temperature within the range 550.degree. to 650.degree. C for constant residence times of 0.1 to 0.9 second; and resulting reaction mixture containing a residual analytically detectable 20 to 50% proportion of the carbon tetrachloride used is condensed out.

Abstract: A device for variably illuminating an object, such as an indicator on the instrument panel of a motor vehicle, includes a light source, a light conducting assembly for transmitting light to the object to be illuminated and a movable light control member disposed between the light source and an end of the light conducting assembly and constructed of a light conductive material, the movable member having a light transmitting surface of varying dimensions along the direction of movement of the member such that movement of the member relative to the end of the light conducting assembly varies the amount of light supplied thereto.

Abstract: A process for the production of bilaterally corrugated plastic sheets by extruding a plastic synthetic resin composition, preferably soft PVC, from a slotted nozzle fashioned in a double comb-like shape, stretching the sheet in the longitudinal direction of the ribs during the drawing-off process and passing the sheet through a cooled glazing or smoothing calender. Also disclosed are various sheets produced by the above-process as well as methods for joining the same together.

Abstract: Sulfamic acid halides are produced by reaction of sulfamic acids with carbonic acid halides in the presence of carbamic acid halides or dichloromethyleneammonium chlorides. The products are starting materials for the manufacture of plant protection agents, dyes and pharmaceuticals.

Abstract: A novel gear arrangement is provided for coordinately performing two or more functions such as winding a film load within a camera, resetting the shutter thereof and setting the flash cube assembly therein. To effect these functions, an internal gear is provided having an internal annular area provided with gear teeth and an internal annular area free from gear teeth. Operatively connected to the internal gear are a plurality of planetary gears, each having an annular external area of gear teeth and an external annular area free of gear teeth, the respective gear teeth areas being in meshing engagement and the respective areas free of gear teeth being in facing relation. The internal gear is provided with a partially milled or corrugated exterior edge mounted through the camera housing. Rotatably connected to the planetary gears is a planetary carrier provided with at least one, and preferably two, sets of function driving gear teeth.

Abstract: A spring member is resin bonded to a piezoelectric material body at one end nd at the other end carries the oscillating electrode of a Kelvin probe capacitor used for electron work function measurement under vacuum. The piezoelectric material body can be either a piezoelectric crystal or a piezoceramic. An alternating voltage causes it to vibrate the spring member at a resonant frequency, so that a still greater amplitude of vibration is produced at the electrode. A superimposed d-c voltage is applied to the piezoelectric material body to set the average spacing between the movable reference electrode and the fixed sample electrode. A polyurethane-based resin provides vacuum-proof bonding. The piezoelectric material body and spring are mounted in a tube providing electrostatic shielding.

Abstract: This invention relates to a non-flammable homogeneous or foamed organo-red mud polymers, which essentially comprise the reaction product of red mud and a compound possessing at least two isocyanate groups.

Abstract: A wet grinding device having a container for receiving therein products to be ground as well as grinding balls, the container being equipped with a mixer, a delivery device for feeding the products to be ground into the container, a discharge outlet for the broken-up products, as well as a drive device for the mixer. The wet grinding device is characterized by an operating chamber divided into a plurality of grinding zones of increasing volume, the operating chamber including a mixer shaft therethrough, the latter being rotatably horizontally supported by the container. The shaft is provided with blades which have a diameter which is proportional to the diameter of the respective grinding zones.

Abstract: The invention concerns a process for making heat-resistant polyurethane elastomers from substantially linear polyhydroxyl compounds of high molecular weight, polyisocyanates, chain extenders, and, if desired, catalysts and additives, in which the polyhydroxyl compound is reacted with diisocyanate material in amounts to give an OH:NCO ratio of 1:1.10 to 1:2 and produce an adduct, and the adduct is subsequently reacted with symmetrical aromatic diisocyanate and a diol as chain extender (preferably a linear diol containing 2,4 or 6 carbon atoms) to obtain a crystalline or crystallizable diurethane or polyurethane of good heat resistance.

Abstract: A self-propelled carriage traveling along a track, e.g. within a printing plant, carries a number of flat articles such as printing forms suspended from a common supporting bar with the aid of releasable holders gripping that bar in transversely spaced engagement positions. As the carriage passes a receiving station such as a printing press constituting the destination of one or more of these articles on one holder, a magnetic retreiver aligned with the corresponding engagement position releases the holder from the bar and lets it drop onto a transverse guide rod sloping down to an unloading point. The holder may include a locking mechanism for securing the article or articles in place during travel, an extension of this mechanism preventing the mounting of the holder on the supporting bar in an unlocked position.

Abstract: The invention relates to a ski-boot and to a ski-binding to be used in combination therewith. The ski-boot is provided with a rolling sole curved continuously in the longitudinal direction, by means of which walking is greatly facilitated, even in the case of a boot having a rigid upper and sole. The binding comprises moulded parts adapted to the curved rolling sole of the ski-boot, upon which the said ski-boot rests when the ski is in use, and which fill up, at least locally, the free space between the flat surface of the ski and the curved rolling sole; or it may have engaging parts which engage positively in recesses or grooves in the sole of the ski-boot, thus securing the ski-boot immovably to the ski. The moulded parts, which may fill up the free space between the surface of the ski and the curved rolling sole, may be either integral functioning parts of the ski-binding or accessories fitted to bindings of conventional design.

Abstract: Triphenyl-1,2,3-triazolyl-(1)-methanes of the formula ##STR1## in which X and Z each independently is hydrogen, alkyl, halogen, nitrile or thiocyano, andY is hydrogen, halogen, alkyl, halogenoalkyl or nitro,Which possess fungicidal and bactericidal properties.

Abstract: A scanning, corpuscular-beam microscope which includes a beam deflection system comprising a first stage for deflecting the beam out of the optical axis of the microscope and a second stage, disposed after the first stage along the beam path, for deflecting the beam towards the optical axis of the microscope. A first objective lens having a short focal length is disposed after the second beam deflection stage along the beam path for focusing the beam on a specimen. The improvement of the invention comprises the provision of a second objective lens having a long focal length which is disposed above the first objective lens along the beam path. The second objective lens is excited for low magnification of the specimen by the microscope and redirects the deflected beam in a direction approximately parallel to the microscope axis and focuses the beam on the specimen.

Abstract: A method and apparatus for focusing the objective lens of a scanning transmission-type corpuscular-beam microscope. In the method, the beam of the microscope is deflected by a deflection system excited in sawtooth fashion and generates a raster consisting of parallel lines on the specimen to be examined. The microscope includes a beam radiation detector disposed behind the specimen along the beam path which generates an output signal which controls the brightness of a picture tube monitor operated synchronously with the raster. The improvement of the invention comprises the steps of measuring, during the exposure of a specimen point, partial beam radiation intensities in the cone of the beam at two points disposed symmetrical with respect to the longitudinal axis of the beam cone by means of the detector, the effective input area of the detector being smaller than the cross-sectional area of the cone of the beam at the same height in the microscope.

Abstract: A bearing assembly having inner and outer bearing rings and a plurality of sliding bearing disks, one of these disks being a force measurement sliding disk having the same dimensions as one of the sliding bearing disks and positioned between the rings in the main load zone of the bearing assembly as a replacement for one of the sliding bearing disks, the force measurement disk being in a recess position between the rings and the other disks and comprising a carrier member with a force measuring transducing element mounted thereon.

Abstract: The pressing machine includes a pressing ram, a drive arrangement for moving the ram from a starting position to an end-of-stroke position and back to the starting position and includes an electric drive motor. A control arrangement establishes the end-of-stroke position for the ram. The control arrangement includes a direction-reversing circuit connected to the drive arrangement for reversing the direction in which the drive arrangement moves the ram and includes a direction-reversing relay arrangement having a current path for activating current. A controllable electronic switch is connected to the activating current path for controlling the activation of the direction-reversing relay arrangement. A control-signal-generating circuit controls the conductivity of the electronic switch by generating and applying to the control input of the electronic switch a control signal dependent at least upon the loading of the drive motor.

Abstract: A cover plate is provided which is especially suited to an instant picture type camera employing mirror image deflection for picture taking. However, this cover plate is suited to any still camera having a substantially planar contiguously grouped optical element arrangement. The cover plate is longitudinally slidably mounted in the camera housing relative to the normal viewing position of the camera, and is reciprocally movable between a first position overlying the optical elements mounted in the camera housing and a second position vertically distal thereto.

Abstract: An electrical LC resonant circuit, particularly useful for channel filters in carrier frequency technology, has a fixed-tuned coil and a capacitor tunable by the removal of layer surface portions. The capacitor is constructed as an essentially flat, self-healing layer capacitor having a relatively small number of layer surfaces and dielectric layers lying one upon the other.

Abstract: An electrophotographic image carrier is made by depositing an intermediate layer on an electrically conductive substrate and then vapor-depositing, on the intermediate layer, an inorganic photoconductive layer while maintaining the temperature of the substrate during the deposition of the photoconductive layer at a value which is above the melting point of the intermediate layer, but below the damaging temperature of the photoconductive layer.

Abstract: Process for the manufacture of N-alkyl and N-alkenyl carbamates by reacting a hydroxyl compound with a carbamyl chloride essentially free from phosgene and hydrogen chloride at a temperature of from 60.degree. to 130.degree. C in alkyl or halogen benzenes as solvent.