baber/WOPTO huggingface dataset:
Patent DE-3808146-A1 (DE)
Inventor: BOEHM GOTTFRIED
IPC: C21D1/76
Filed: 1988-03-11
Abstract: Protective gas for the heat treatment of metals is frequently produced in generators. This type of production is expensive. It is simpler for producing a protective gas to burn a hydrocarbon- containing fuel gas such as natural gas or propane in a jacketed jet tube. This is not possible, however, if the combustion is to be less than stoichiometric, that is to say a sooty endothermic gas is to be produced with an external heat supply. In order to allow the production of protective gas nevertheless in such cases, the combustion is carried out stoichiometrically and a mixture of nitrogen and methanol is sprayed into the combustion chamber (3). In this case, the combustion temperature should not fall below 750 DEG C. <IMAGE>
Patent DE-3809722-A1 (DE)
Title: Process for fabricating electrical contacts
Inventor: NAROZNY PETER DR ING
IPC: H01L21/033
Filed: 1988-03-23
Abstract: The invention relates to a process for fabricating metal patterns (e.g. electrical contacts) by means of the lift-off technique. On a GaAs semiconductor layer, a Ge layer is deposited. By means of a lithographic step, a photoresist layer applied is patterned. In a dry-etching process carried out subsequently, the Ge layer is removed in the region of the photoresist holes, in such a way that the photoresist layer is undercut and the semiconductor surface is partially exposed. By means of vapour deposition over the entire area, the contact material is applied and patterned by a lift-off process. Subsequently, the remaining germanium is removed by means of a dry-etching process.
Patent DE-3811222-A1 (DE)
Title: Brake disc for disc brakes
Inventor: ULRICH ALBERT
IPC: F16D65/00
Filed: 1988-04-02
Abstract: A description is given of a brake disc (1) for disc brakes as used, for example, for motor vehicles. The vibrations generated in the brake disc (1) during a braking operation lead to an unpleasant noise, often referred to as brake squealing. For absorption of vibration, the invention provides a mass which is in the form of tongues (7, 8) formed from the brake ring (1). The varied arrangement of the tongues (7, 8) on the circumference of the brake ring (4) eliminates vibrations of different frequency ranges. <IMAGE>
Patent DE-3814631-A1 (DE)
Inventor: MELZIG MANFRED DIPL CHEM DR
IPC: C09B11/24
Filed: 1988-04-29
Abstract: A photochromic compound which has a conventional spirooxazine skeleton is described. 
<??>According to the invention, conjugated diazole-naphthoxazine or oxazole, thiazole, benzoxazole or benzothiazole systems have undergone addition at the skeleton. 
<??>This results in improved absorption in the wavelength range > 350 nm and improved migration properties.
Patent DE-3819183-A1 (DE)
Title: Method for fault-detection in the case of running material webs
Inventor: STEIN WALTER VON
IPC: G01N21/898
Filed: 1988-06-06
Abstract: The invention relates to a method for fault-detection in the case of running material webs, in which the material web is optically scanned in point fashion, periodically and line-by-line, transverse to its running direction, in order to detect for each point a scan-line of its grey-scale value. The grey-scale values of each image point of each image line are then digitised and stored successively in an image store, so that the scanned image of the material web is built up from image points stored in line-fashion and column-fashion. The stored image is scanned electronically with an image column matrix so that in each case a plurality of image points are simultaneously detected in the line direction and column direction of the image. The grey-scale values of the image points respectively determined by the image column matrix are then fed together to a fault-detection circuit.
Patent DE-3824000-A1 (DE)
Title: Mast (pylon, pole) having monitoring device for the protection against mast damage
Inventor: HARJES BERND DR ING
IPC: G08B21/18
Filed: 1988-07-15
Abstract: The physical protection by means of optical waveguides (LWL) is to be extended to the protection of masts, pillars and the like, and a monitoring device is to be created which in the case of an attempted mechanical damage of the mast gives a reliable signal at an early stage. In addition, the monitoring device is to be constructed in such a manner that other sensors can also be used apart from optical waveguide sensors. The solution essentially consists in that the optical waveguide sensors (16) are arranged in the monitoring region (3) of the mast base (4), the other sensors are arranged directly above it, and they are connected via optical waveguide lines (11, 15) to an autonomous monitoring apparatus (21) which is arranged on a mast cross-arm (6) in a metal housing and comprises a battery power supply, a plurality of laser diodes and/or only photodiodes, an electronic evaluation system and a radio transmitter. When different sensors are to be used, then each optical waveguide (11) guided along the mast is guided into a metal housing (41) which is fastened to the upper edge of the monitoring region (3) on the mast and contains an autonomous electronic module (42) to which is connected on the input side the sensor and on the output side the optical waveguide (11). Either an infrared detector (43) or a microphone (44) for structure-borne noise is arranged as sensor inside the modular housing (41) or an optical waveguide sensor (16) is arranged alongside the base (4) of a main leg. Monitoring of this kind is used in particular in the case of high-voltage towers (transmission poles). <IMAGE>
Patent DE-3825492-A1 (DE)
Inventor: PALMER THOMAS PATTINSON
IPC: A01G1/00
Filed: 1988-07-27
Abstract: A method of hybrid seed production comprises cross pollinating male and female parent plants either a) the male plant being resistant to a phytotoxic chemical or b) each parent being resistant to a different phytotoxic chemical, the resistance being attributable solely to a homozygous dominant nuclear marker gene. In case (a) seed from the female plants only and in case (b) all seed is harvested. The harvested seed is dosed with the chemical(s) before planting or after seedling emergence therefrom. The chemical may be a herbicide or an antibiotic e.g. Kanamycin. The marker gene may be introduced by Agrobacterium-mediated transfer or direct DNA uptake or selected in a sematic cell culture transfer protoplast fusion or after inducing plant mutagenesis.
Patent DE-3826005-A1 (DE)
Title: Arrangement for diverting cropped ends of a rolled bar behind rotating shears
Inventor: GRENZ GUENTER
IPC: B23D33/02
Filed: 1988-07-30
Abstract: An arrangement for diverting cropped ends of a rolled bar behind rotating shears 1 from a channel 7 without any deflection of the rolled bar 5 itself consists in the base of the channel 7, which is open at the bottom, being formed from a separate elongated baseplate 8 which has a control edge 8a and can be set in a wobbling movement by two out-of-phase displacing drives, e.g. cranks 15, 16, with respect to the timing of cropping cuts of the shears. The wobbling movement keeps the channel 7 closed in conjunction with the configuration of the control edge 8a and in a leading or lagging manner opens the channel for the free fall of the front or rear cropped end. The displacing drives 15, 16 are taken from the drive of the rotating shears 1 via reduction gearing 21 and an articulated spindle 20 so that the sequence of movement of the baseplate 8 is synchronised with the angular velocity of the cutter shafts of shears starting from a standing position. The displacing drives are disengaged and locked by a clutch when the shears perform partial cuts. <IMAGE>
Patent DE-3828842-A1 (DE)
Title: Process for the treatment of RNA and/or DNA
Inventor: LAUBE HANS-JUERGEN
IPC: C12N13/00
Filed: 1988-08-25
Abstract: In a process for the treatment of RNA and/or DNA, the RNA and/or DNA is exposed to a magnetic field. This magnetic field should have a strength of more than two tesla.
Patent DE-3831860-A1 (DE)
Title: Arrangement for torque-dependent control of the compressed air supply in compressed air machine tools
Inventor: RADTKE GERD
IPC: B25B23/145
Filed: 1988-09-20
Abstract: In known arrangements the fact that the compressed air motors have a poor starting behaviour and a low air flow rate has a particularly disadvantageous effect. The new control arrangement is intended to be simple and capable of adaptation to different compressed air machine tools, to permit a maximum air flow rate, to significantly improve the starting behaviour, to reduce the air consumption without limiting the power and to permit reliable adjustment of the idling speed. A torsion compression spring (8) is inserted into the power transmission line between rotor (1) and output shaft (2) of a compressed air motor so that when rotated against the spring force the openings (9, 10) arranged in the two governor plates (6, 7) are made to more or less coincide. The idling speed is set with the annular gap (11) between the stator cover (3) and the governor plate (6) connected to the rotor (1), whilst the adjustable annular gap (12) between the said governor plate (6) and the governor plate (7) connected to the output shaft (2) is automatically set by the action of the feed air pressure. The arrangement is used to control the air supply of compressed air motors in rotary compressed air machine tools, especially grinding machines. <IMAGE>
Patent DE-3834258-A1 (DE)
Title: Differential amplifier
Inventor: FISCHER GERHARD
IPC: H03F3/19
Filed: 1988-10-08
Abstract: The invention relates to a differential amplifier having two identical transistors as transistor pair with emitter coupling and negative current feedback for amplifying a video signal which is applied to the base of one transistor whilst the base of the second transistor is connected to a particular voltage potential and in which amplified video signals with opposite polarity can be picked up at the collectors of the transistors. For a gain control which is not loaded by DC, a parallel branch to the emitter coupling and having a field-effect transistor as variable resistor is provided, the source and drain terminal of which is in each case connected to the emitter of one of the two transistors and the gate terminal of which is connected to an adjustable voltage source.
Patent DE-3834662-A1 (DE)
Title: Chlorocyclohexenonylalanine derivative, a process for its preparation and its use as microbicide
Inventor: JUNG GUENTHER PROF DR
IPC: A61K38/00
Filed: 1988-10-12
Abstract: The present invention relates to a chlorocyclohexenonylalanine derivative, to a process for its preparation and to its use as microbicide and pest-control agent, in particular for controlling bacteria and harmful fungi. The chlorocyclohexenonylalanine derivative of the formula (I) <IMAGE> which can be used as microbicide has been found.i
Patent DE-3835903-A1 (DE)
Title: System for charging a multilayer flowbox for a paper machine
Inventor: FICKLSCHERER PETER DIPL ING DR
IPC: D21F9/00
Filed: 1988-10-21
Abstract: The control is based on the decomposition of the ascertained deviations of the controlled variables (pressures P1, P2...Pn) in the individual flow spaces (1, 2...n) of an n-layer flowbox into components which cause no deformation, and components which cause a deformation of a rigid partition wall (4, 5...n) between the respective spaces and capable of being mechanically loaded up to an upper limit. For each of these decompositions, a separate control loop (I, II...N) is provided, which works independently of the others. By this means, the deformation of the partition walls is taken into account as a controlled variable in the control. By this means, the deformation can be directly controlled out so that, during commissioning - and also in operation - damage to the partition walls by mechanical overloading as a result of impermissible pressure differences between the spaces (1, 2...n) is avoided. <IMAGE>
Patent DE-3843747-A1 (DE)
Title: Method and device for constructing concrete strips of accurate profile
Inventor: DIETRICH WILLI
IPC: F16L1/038
Filed: 1988-12-24
Abstract: The present invention relates to a method of constructing pervious concrete and/or haunching of accurate profile along an essentially horizontal or slightly inclined base, in particular for protecting or for at least partly encasing drainage and/or perforated pipes, a formwork box (1) being used which is open at one end face and at least at one further side (7). The present invention likewise also relates to a device for constructing pervious-concrete strips and/or haunching strips of accurate profile. In order to provide such a method and a corresponding device which require less manual labour and permit quick and continuous work, it is proposed according to the invention that the formwork box also be open at the second end face (2), that the formwork box (1) be firmly pressed against the base with its side edges defining the further open side (7), which base defines the profile from the unclad sides, and that the formwork box (1) be displaced in the longitudinal direction of the side edges and that it be filled in the process essentially continuously with pre-compacted concrete from the front end face (2). <IMAGE>
Patent DE-3844310-A1 (DE)
Title: Holder for free-standing (exposed) electronic components
IPC: H05K3/30
Filed: 1988-12-30
Abstract: A holder is proposed for free-standing electronic components, especially hybrid modules, which have a connection with contact pins, which holder has a lateral guide for the side edge of the modules. The holder is used both for fitting hybrid modules on a printed circuit board and for transportation security of such a module, especially for security of the contact pins of the connection comb against bending or breaking off. Such a holder has a baseplate (2), which is used as an insertion aid, for the contact pins of the connection comb of the module, as well as self-supporting retaining arms (3) which originate from the narrow sides of the base plate (2) and merge into mounting pins (4) which can be inserted into a printed circuit board. If a module board is inserted between the retaining arms, these arms are forced apart from one another which leads to the mounting pins (4) pivoting. Projections are provided on the inside of the mounting pins (4), which projections (6) are used as a locking device and provide secure retention on a printed circuit board to a mutual inward pivoting of the holder (1). <IMAGE>
Patent DE-3905004-A1 (DE)
Title: Cable tie
Inventor: SCHOEN KLAUS
IPC: H02B1/20
Filed: 1989-02-18
Abstract: A cable tie (1) for insulated electrical cables (leads, lines) (7) has grooves (2) as retaining means for cables (7) on the cable tie (1) for organised wiring and laying cables in flat harnesses. The grooves (2) have flat sections which at least partially engage around the outer surfaces of the cables (7), in that they have undercuts. <IMAGE>
Patent DE-3906484-A1 (DE)
Title: Thermal printhead
Inventor: STEIN KARL-ULRICH DR
IPC: B41J2/335
Filed: 1989-03-01
Abstract: The thermal printhead is installed on a substrate (1) made of monocrystalline silicon in which power transistors are integrated. Connected in series with each of the power transistors is a heating element (21) which is arranged on the substrate (1). At the rear under the heating elements (21), the substrate (1) has depressions (12) which reduce the vertical conduction away of the heat required for thermal printing. <IMAGE>
Patent DE-3908338-A1 (DE)
Title: Method and device for controlling a load, especially in motor vehicles
Inventor: KNITTEL OTTO
IPC: H02M3/155
Filed: 1989-03-15
Abstract: In a method for controlling a load, especially in motor vehicles, by means of an inductor/step-down converter which has a first and a second capacitor, a free wheel diode, an inductor and a first switching device, and which is electrically conductively connected to the load, having a clock generator device which generates a voltage having a variable mark-to-space ratio with fixed clock frequency, as a function of input signals, and controls the first switching device, in order to increase safety when controlling and switching on a load, the first switching device is set into the on state at the beginning of each pulse period for a predetermined or variable length of time low-ohmically and, after this period of time has elapsed, the first switching device is set high-ohmically for the remaining time of the pulse period and the first switching device is switched into the off state after the pulse period has elapsed.
Patent DE-3914588-A1 (DE)
Title: Providing short access time to audio and video CD disc - using section identified by table of contents providing playback speed conditions
Inventor: KUEHN HANS-ROBERT
IPC: G11B27/10
Filed: 1989-05-03
Abstract: A computer disc is used that stores both audio and video signals in different sections of the disc.  Also included  is a section that has a table of contents that is read to start with and provides information of the scanning speed.  The table relating to the video section is read first and is followed by the audio information. The sequence is inverted when the audio tracks are to be played.  The system in this way allows selection of audio or video sections. ADVANTAGE - Provides rapid access to video or audio CD tracks.
Patent DE-3922891-A1 (DE)
Title: Variable effect hydraulic shock absorber - has two solenoid coils to vary by=pass flow rate to damping valve
Inventor: SCHNEIDER STEFFEN DIPL ING
IPC: F16F9/46
Filed: 1989-07-12
Abstract: The piston of the hydraulic shock absorber has a spring-loaded damping valve (6) as well as a bypass formed by the relative settin-gs of two concentric elements (10) with overlapping flow holes (8).  Two solenoid coils (12,13) are operated alternately to move the bypass flowrate from the mid setting to a fully open setting or a fully closed setting. The two solenoid controlled settings thus provide three separate damping levels for the shock absorber. The two solenoids operate on a slider (10) held between two different strength springs (15,14) , with the extension of the springs limitted by stops. ADVANTAGE - Three damping settings, simple control system.
Patent DE-3923476-A1 (DE)
Inventor: DRUSI ALBERTO
IPC: F02M37/42
Filed: 1989-07-15
Abstract: A disposable, screw-on filter for lubricant or Diesel engine fuel comprises a cup-shaped housing 2 with a cover 5 welded thereto and enclosing a wound paper filter element 7 supported by central tube 16, the housing 2, cover 5 and tube 16 all being made of plastic. In Fig. 1 the tube 16 is made separately and carries an integral flange 14 supporting the filter element. In Fig. 3 the tube is made integrally with the cover. The plastic may be glass-reinforced polyamide. Grooves 22 collect waste when the housing and cover are welded together. Seal rings 31, 32, 33 may be moulded integrally with cover 5. Sump 12 collects water and has a drainage cap 42. <IMAGE>
Patent DE-3925002-A1 (DE)
Title: Switching arrangement for motor powered roller blind - has limit switches operated by stops moved by lead screw assembly
IPC: E06B9/80
Filed: 1989-07-28
Abstract: A roller blind mechanism with an electric drive has a pair of threaded headscrews (40,42) built into the roller cylinder (38).  The ends of the leadscrews carry small pistons (20,22) that  mesh with loom gears (16,18) on the drives. In the centre of the cylinder is a main shaft (11) that provides the drive. The leadscrews carry actuators (48,50) that are moved along guide bars (83) as rotation takes place.  Built into the end of the unit are a pair of limit switches (56,76) that are operated by the actuators to define the end positions. ADVANTAGE - Provides operation of limit switches at end of cycle.
Patent DE-3926018-A1 (DE)
Title: Hand punch for holes in wall of hollow punch - has punching matrix with two different abutment planes for support body and cutting segments respectively
Inventor: HILTI FRANZ
IPC: B26F1/36
Filed: 1989-08-05
Abstract: The manual punching tongs punches holes for cooling water in the wall of a hollow punch (10).  The tongs have handles which are connected by a pivot bolt and actuate two levers (6,7) pivoting on a bolt.  One lever (6) is fitted with a punch (6a), whilst the outer end of the other lever (7) forms a die (7a) for the punch. The die has an end face with a central region (7c), which is raised by a distance (h) above the surrounding region.  The surfaces of both regions are flat and parallel to each other.  The raised die central region enables it to fit in the space between two cutting inserts (10b) of the hollow punch. ADVANTAGE - Reliable function, without damaging the hollow punch.
Patent DE-3928876-A1 (DE)
Title: Screw operated mechanism for adjusting car bumper - has fastening elements on chassis and on bumper in which one of shanks of bumper element has elongated holes
Inventor: HENEKA ROLF
IPC: B60R19/24
Filed: 1989-08-31
Abstract: The arrangement to adjust a bumper on a vehicle has fastening elements (8) on the chassis and fastening elements on the bumper in which one of the shanks (7) of the bumper element has elongated holes (21, 22) of which one (21) runs in the vehicle direction (X). The holes are set for the alternative reception of a projection (24) of a tool (23) rotatable about the central axis of a screw (17). ADVANTAGE - Method of adjustment in respect of bumper height, vehicle length and vehicle cross section.
Patent DE-3933345-A1 (DE)
Title: Seed drilling machine adaptable to different row widths - has laterally displaceable drilling shares to increase passage between them
Inventor: DREYER HEINZ DIPL ING DR
IPC: A01C7/20
Filed: 1989-10-06
Abstract: The drilling machine for direct seeding has a frame, supply container and drilling shares set movable perpendicularly on cross supports running across the travel direction. On increasing the line spacing of thje furrows drawn in the ground by the drilling shares (8) the shares (8) operate with a share step (A). The shares (8) of the front and/or rear cross row (10,11) are displaceable sideways by the extent of the 'grain row spacing' (B) and/or half the distance (C) between two adjoining drilling shares (8). The shares can be displaceable sideways so that each share of the rear cross row (11) seen in the travel direction (5) aligns with a share (8) of the front cross row. USE/ADVANTAGE - The drilling machine can be adjusted to different row widths with the passage between the individual shares being easily increased.
Patent DE-3933523-A1 (DE)
Inventor: SCHNEIDER MARTIN DR
IPC: A61P35/04
Filed: 1989-10-05
Abstract: The invention relates to an antimetastatically acting agent consisting of Eptaloprost, Cicaprost or combinations of TXA2 antagonist and prostacyclin derivatives.
Patent DE-3936394-A1 (DE)
Title: Modified phenol-formaldehyde resol prepn. - by alkylating phenol with mixt. of partly brominated unsatd. oil and reactive unsatd. hydrocarbon then condensing with formaldehyde
Inventor: SINGER KLAUS DR RER NAT
IPC: H05K1/03
Filed: 1989-11-02
Abstract: Modified phenol-formaldehyde resols (I) are prepd. by, (1) reacting phenol and/or its homologue with alkylating agent (II) consisting of, (A) partially brominated oil with double bonds, contg. 5-50 wt.% Br; (B) reactive unsatd. hydrocarbon, and opt.; (C) other unsatd. oil, in ratio 1:0.05-1 in presence of Broenstedt or Lewis acid catalyst at ratio phenolic raw  material:acid of 1:0.001-0.01 at 60-150 deg.C for 20-160 mins. and (2) adding HCHO, basic catalyst, and opt. more phenol and/or its homologue, in total ratio phenolic raw material:HCHO:basic catalyst of 1:0.8-1.8:0.01-0.2, and condensing under reflux. USE/ADVANTAGE - Base material for circuit boards in electrical and electronic engineering. (II) has good storage life, boards have good dimensional stability, low water uptake, and good dielectric values.