Abstract: A coating for applying to a front side of a substrate, which side is facing an observer, comprises a four-layer system which is optically effective and has a high anti-reflective effect. A first layer of this system is applied onto the front side of the substrate and is, preferably, a highly-refracting TiO.sub.2 layer, the second layer is applied to the first layer and is a low-refracting Al.sub.2 O.sub.3 layer, a third layer of the system is applied to the second layer and is, preferably, a high-refracting TiO.sub.2, while the fourth layer applied to the third layer is, preferably, a low-refracting SiO.sub.2 layer. The layers can be formed by either a pyrolytic method, a plasma-supported chemical vapor deposition method, a sputtering method or a chemical vapor deposition method. Preferably, they are formed by a DC-reactive sputtering method with a magnetron.

Abstract: A boom, particularly a spreading boom for suspension on an outer frame (1) of an agricultural tool and of the type in which the suspension device comprises spring suspension and shock absorbing devices in the form of a trapezoidal suspension with two substantially parallel beams of which one is connected to the outer frame (1). According to the invention the upper beam of the trapezoidal suspension is linked, each of the links (6, 7) being pivotally connected to the outer frame (1) and springs (12) being arranged on both sides of the linkage (20, 21), but on the other side of the center of suspension (8, 9). The individual spring (12) is arranged between one of said links (6, 7) and a separate beam fastened to the outer frame (1).

Abstract: A method for the passivation of crystal defects in polycrystalline or amorphous silicon material using a temperature treatment step in a hydrogen-containing atmosphere the method results in favorable diode properties and favorable passivation properties in amorphous or, respectively, polycrystalline silicon material in a simple manner. Hydrogen-oxygen compounds are reduced at the surface of the silicon material, creating atomic hydrogen that diffuses into the silicon material.

Abstract: In a method for fastening a semiconductor body provided with at least one component to a substrate, an under side of the semiconductor body is provided with a first contacting layer and with a powdered metal layer covering this first contacting layer. An upper side of the substrate is provided with a second contacting layer. The coated surfaces of the semiconductor body and of the substrate are then pressed together while being heated. When the semiconductor body is composed of a part of a semiconductor wafer that comprises a plurality of identical or similar parts, then the first contacting layer and the powdered metal layer of the invention are applied in common on the back side of the semiconductor wafer for all semiconductor bodies.

Abstract: A data transfer system for transmitting information from a portable device to at least one outside reading device, the portable device having first memory, the first memory storing the information which comprises a plurality of data blocks involving an error check data, the outside reading device reading the data blocks corrected by the error check data which is transmitted from the portable device.

Abstract: A static memory is constructed in a plurality of hierarchy levels. Beneficial realization possibilities are set forth with respect to the surface utilization for the drive and read-out circuits in the second hierarchy level which are especially critical. Memory cells that supply a strong cell signal are advantageously utilized so that a low expense is needed in the read circuit. By displacing periphery circuits into higher hierarchy levels, a short access time and a reduced surface requirement arise.

Abstract: An ignition/reignition device for a gas burner which eliminates the isolation transformer of the prior art which includes a capacitive discharge curcuit which is connected to a high voltage transformer so as to provide ignition pulses to ignite a gas burner and which has a flame current amplifier and flame rectification sensors connected to the capacitive discharge circuit so as to control it so that spark discharges will occur if the burner has been turned on and such sparks will continue until ignition and wherein upon disappearance of the flame the sparks will again occur to reignite the burner.

Abstract: A rotary centrifuge for the separation of substances at different density having an outer cylindrical housing and a worm within the housing and the worm and housing driven at different rotational speeds, the housing having an opening for the discharge of the heavier fraction with the opening controlled by an external control element preferably stationarily supported and connected by a linkage to a movable valve member for controlling the opening, preferably a ring which moves axially to change the size of an annular discharge gap between the ring and a circular discharge opening in the end wall of the drum, but the opening can also be in the form of axial radial facing openings controlled by a movable valve member.

Abstract: In a solid oxide fuel cell, a multiplicity of single cells are arranged one on each of multiple hollow portions, each single cell including confronting inner and outer electrodes separated by a solid electrolyte. The individual single cells are interconnected in series by multiple interconnections each extending from the inner electrode, at its portion contiguous to the substrate, of the respective one single cell to the outer electrode of the adjacent single cell through the electrolyte of the respective one single cell.

Abstract: A magnetic recording medium having minute irregularities on the surface of a magnetic layer is disclosed. The value of the ratio A.sub.V /A.sub.P, where A.sub.V and A.sub.P are cross-sectional areas of valleys and projections as measured in a plane lower by 50 nm and in a plane higher than 50 nm than an intermediate plane of the magnetic layer, respectively, with the measurement being made using a three-dimensional roughness meter, is given by A.sub.V /A.sub.P .gtoreq.0.90, wherein the intermediate plane is a plane for which the cross-sectional area of the projections is approximately equal to that of the valleys. The minute irregularities on the surface of the magnetic layer are produced by providing a non-magnetic substrate presenting different surface roughnesses on its front surface and back surface, and by transferring surface irregularities constituting the surface roughness of the back surface of the non-magnetic substrate to the front surface of the substrate.

Abstract: A thyristor having low-reflection light-triggering structure. In a light-triggerable thyristor, pyramidal depressions are formed in a simple manner by a preferred etching method, being formed in the region of the photon entry face in order to produce a low-reflection light-triggering structure. Incident light is absorbed in the pyramidal depressions largely independent of the wavelength of the incident light and nearly completely. The low-reflection light-triggering structure thereby produced can be formed with relatively little outlay. This is especially true when a defined overhead ignition voltage is simultaneously set by the pyramidal depressions.

Abstract: A method and apparatus for forming a fold line in a sheet of semi-rigid thermoplastic material including supporting the sheet on cylindrical rollers as the sheet is drawn forwardly along the creasing path through a creasing zone and applying a sequence of heated creasing rollers with each roller penetrating the surface of the sheet an increasing amount and immediately following the creasing by a caliper roller having shoulders for flattening the shoulders in the plastic formed beside the crease.

Abstract: A nonaqueous electrolyte secondary battery includes a cathode of a carbon material that can be doped or undoped with lithium, an anode of a primary active material composed of a composite oxide of lithium and cobalt, the cathode and the anode being disposed in a casing. LiPF.sub.6 is dissolved in a solvent of propylene carbonate and 1,2-dimethoxyethane, and a powder of Al.sub.2 O.sub.3 is dispersed in the solution. The dispersion is poured as an electrolytic solution in the casing.

Abstract: A method for rinsing a textile wash load is provided for use in a vertical axis washing machine in which a plurality of initial spray rinses are used in which the released water is discharged directly to drain and a plurality of subsequent spray rinses are used in which the water is recirculated through the spinning clothes load for a predetermined length of time before being discharged to drain. Enhanced detergent and soil removal with less water usage is achieved with this method.

Abstract: A 16.times.16 picture block of an HDTV television picture is transformed with a discrete cosine transformation as a 16.times.16 frame block or is separately transformed in respectively two 16.times.8 field blocks according to a decision method. Picture value differences between pairs of field picture elements of two picture lines of the same field are absolutely summed up to form a field sum. Likewise, picture value differences between pairs of frame picture elements of two picture lines of the frame are absolutely summed up to form a frame sum. The frame sum multiplied by a frame weighting factor is subtracted from the field sum to form what may be a positive decision result. Given a positive decision result, the frame is transformed; otherwise, the two fields are separately transformed.

Abstract: A method and an apparatus for manufacture of a cathode-ray tube where an electron gun for emitting a plurality of electron beams is enclosed in a tube body with discrete electrodes disposed individually to such beams and joint electrodes disposed commonly to the beams. The method comprises the steps of incorporating the electron gun in the tube body and applying high-frequency induction heat principally to the joint electrodes to thereby evacuate and seal up the tube body; flashing a getter material; and disposing at least a pair of cored coils on both sides of the tube body at positions opposite to the discrete electrodes disposed individually to the plurality of beams, and applying high-frequency induction heat principally to the discrete electrodes.

Abstract: A fast change set-up device for work on work supports wherein work blanks can be mounted to a number of work supports prior to machining and the upper work support can be quickly attached to a lower work support and locked thereto by rotating a handle so that the next piece can be machined. The shaft carries four cams for driving spring biased bolts which engage in grooves formed in locking pins and the cams have an indentation for locking the bolts in the grooves to hold the upper and lower work supports together so that machining can occur. After machining the upper work support can be removed from the lower work support and a second upper work support can be mounted to machine another workpiece.

Abstract: Contact component. Attached to a base part (5), the contact component (1) has a clamping adapter (3) and a fork spring contact (6) with which it can be plugged onto pin-shaped mating contacts (14, 15, 16). With respect to an axis of symmetry, proceeding in plug-in direction, of the fork spring contact to be contacted with the mating contact, an offset (v1 or v2) is provided for a clamping point (4) of the clamping adapter (3) in a first direction proceeding perpendicularly to the axis of symmetry and in a second direction proceeding perpendicularly to the first direction and to the axis of symmetry (2). Each contact component (1) is firmly inserted in various positions in a base housing part. This occurs in reception chambers which are provided in the shape of a grid at a certain dividing distance.

Abstract: Method for transmitting a digital broadband signal in a tributary unit concatenation via a network of a synchronous digital multiplex hierarchy. A pointer for positional identification in a frame is allocated to the first tributary unit in a tributary unit concatenation; instead of a pointer, the further tributary units receive a concatenation indicator. Every cross-connect equipment along a transmission link recognizes the tributary unit concatenation and forwards the tributary units thereof in the correct sequence. When a clock matching is required in the case of a first tributary unit, a pointer skip is initiated at all further tributary units. This requires hardware and software. This is eliminated when all tributary units (TU-12.sub.1 through TU-12.sub.5) containing the broadband signal (DSa) have a pointer (PTR1 through PTR5) having the value of the positional identification of the first tributary unit (TU-12.sub.1) allocated to them. The individual tributary units (TU-12.sub.1 through TU-12.sub.

Abstract: A high density magnetooptical recording and playback method is disclosed. The magnetooptical recording medium comprises a recording hold magnetic layer and a playback magnetic layer magnetically coupled with each other. Prior to the playback operation, the playback magnetic layer is initialized by an external magnetic field. A laser light is irradiated to locally heat the medium and cause transfer of magnetization in the recording hold magnetic layer to the playback magnetic layer. The signal is read out by the interaction of the laser light and the transferred magnetization.