baber/WOPTO huggingface dataset:
Patent DE-3831647-A1 (DE)
Title: Fixing device
Inventor: SCHNEIDER PETER ALEXANDER DIPL
IPC: F16D1/06
Filed: 1988-09-17
Abstract: A description is given of a device for fixing a belt pulley 2 to a shaft. In order to provide a simple possibility for the axial adjustment of the belt pulley, an essentially radially extending flange part (6) of the belt pulley (2) should be provided with circumferentially extending ramp surfaces (8) arranged in a uniformly distributed manner over the circumference and having an axial slope, on which surfaces a fixing disc (10) that can be rigidly connected to the shaft can be rotated in sliding fashion by means of corresponding mating surfaces (14) and can be fixed releasably in the individual positions. <IMAGE>
Patent DE-3832323-A1 (DE)
Title: Water-side connection of a central-heating boiler
Inventor: NOACK ROLF DR
IPC: F24H9/00
Filed: 1988-09-23
Abstract: The water-side connection of a central-heating boiler is to be designed in such a way that condensate formation owing to inflowing, cool return water is avoided. For this purpose, the return connection (9) leads into the upper, front region of the heating boiler, and to be precise in such a way that it is surrounded, with a forward-pointing extension (10), on all sides by a shaft (11) with a horizontal throughflow. Owing to the injection action, hot flow water is sucked through the shaft. A mixture of cool return water and hot flow water comes into contact with the boiler surfaces, with the result that condensate formation is prevented. <IMAGE>
Patent DE-3836033-A1 (DE)
Title: Electrical apparatus, especially for motor vehicles
Inventor: SANDER THOMAS
IPC: H05K3/36
Filed: 1988-10-22
Abstract: In the case of an electrical apparatus having a supporting board which is made of insulating material and has conductor tracks on one side, having electrical or electronic components which are arranged on the supporting board and whose connections are electrically conductively connected to the conductor tracks by means of solder points, a second supporting board is provided in order to create a detachable plug connection, which second supporting board is made of insulating material and has conductor tracks on the same side as the first supporting board. Plug pins are arranged on the side of the second supporting board on which there are no conductor tracks and their connections pass through openings in the second supporting board to the conductor-track side of the said second supporting board and are electrically conductively connected to the conductor tracks by means of solder points. A third supporting board is furthermore provided which connects the first supporting board and the second supporting board to one another and can be removed. Wire links bridge over the third supporting board and are electrically conductively connected at one end to the conductor tracks on the first supporting board and at the other end to the conductor tracks on the second supporting board. Finally, the second supporting board can pivot with respect to the first supporting board in such a manner that the solder points lie opposite.
Patent DE-3903602-A1 (DE)
Title: Use of magnetic fields in rocket motors
Inventor: SCHMIDT-HARMS CHRISTIAN DR
IPC: F02K9/97
Filed: 1989-02-08
Abstract: In the case of a rocket motor having a combustion chamber and an adjacent expansion nozzle, in order to improve the performance capability of said motor it is provided that a coil arrangement, in order to generate an electromagnetic field, is provided at least in the outlet region of the combustion gases from the combustion chamber. The coil arrangement preferably has turns made of a superconductive material whose critical temperature is higher than the boiling points of liquid rocket fuels, the turns being cooled by means of the liquid rocket fuel.
Patent DE-3910183-A1 (DE)
Title: Textile machine, especially ring-spinning machine
Inventor: NOSER HANS
IPC: H02J9/06
Filed: 1989-03-29
Abstract: What is described is a textile machine, especially ring-spinning machine, with a plurality of electrical drive systems 10, 12 for driving spindles, drawframes, ring rails or the like, which, furthermore, is equipped with a suck-off device 58 having a suck-off fan 20. The suck-off fan 20 is coupled to a generator 22 which is wired to at least some of the drive systems 10, 2 not assigned to the suck-off fan, in order to supply these with electrical energy in the event of a power failure. <IMAGE>
Patent DE-3910738-A1 (DE)
Inventor: MARINELLI THOMAS
IPC: H05B41/14
Filed: 1989-04-03
Abstract: In a ballast for a directly heated discharge lamp (6) a controllable switch (14) is connected in series with the capacitor (5) which is located in parallel with the electrodes (7, 8) of the lamp and is part of the series resonant circuit (3, 4). After the lamp has ignited, this switch is opened by a changeover signal generated by a transformer (9). The transformer (9) has two primary windings (10, 11), of equal size but of opposite sense, and one secondary winding. <IMAGE>
Patent DE-3913932-A1 (DE)
Title: Protection circuit for AC switching of transformer loads - has memory elements to control circuit by detection  of current direction
Inventor: KIRSCHKE REINER
IPC: H02M1/40
Filed: 1989-04-27
Abstract: The protection circuit has a memory element (FF1) supplied by a battery (DB) coupled to a diode (TD) and a control stage (SV) that delivers a signal (ZS). The a.c. switch (WS) has a light emitting diode (LD), zero crossing detector (ZD) and a thyristor (TP) coupled to an external thyristor pair (ET). An input to the diode (LD) is from a flip flop (FF2). The memory elements serve to latch the direction of the current signals and provide interruption of the a.c. voltage to prevent overload. ADVANTAGE - Protects against overload or over saturation in transformer supplies.
Patent DE-3915490-A1 (DE)
Title: Car spoked wheel of aluminium - has enclosed rim ring, with spoke retaining shell in rim bottom
Inventor: SPAETH WALTER E
IPC: B60B1/04
Filed: 1989-05-12
Abstract: The aluminium car spoke wheel has a rim (1) with a cylindrical middle portion (2). The rim has an integrally formed flange (10) which projects radially inwards from one end of the cylindrical portion. The flange has a recess (11) with a flat floor (12) and a through bore (13). A ring (4) fits in the recess and has a spigot (15) which fits in the bore. The outer part (17) of the ring has holes to receive the ends of spokes (5-8), which have their inner ends fastened to the wheel hub. ADVANTAGE - Low-cost mfr., and facility for use of  tubeless tyres.
Patent DE-3916403-A1 (DE)
Title: Through-flow electric water heater for room heating - has controller operated by signals from room thermostat and thermometers on delivery pipe and exterior wall
Inventor: WINTER FRANZ
IPC: F24D19/10
Filed: 1989-05-19
Abstract: Hot water is pumped (6) via stopcocks (7) through a delivery pipe (10) and a return pipe (11) which features an expansion tank (12) and safety valve (8). A controller (3) responsive to an outdoor thermometer (4) and an indoor thermostat (5) acts on a power unit (2) supplying energy to the heater (1) when  required. The mixerless heater has a 9 kW rated section for daytime and a 4.5 kW section for nighttime use. Full power is switched off as soon as daytime temp. is attained. ADVANTAGE - Energy is taken from mains only when room temp. actually needs to be raised.
Patent DE-3916827-A1 (DE)
Title: Quickly exchangeable coding stamp - for use in blow moulding of plastic bottles
Inventor: WOLF OSKAR
IPC: B29C33/42
Filed: 1989-04-14
Abstract: To facilitate the sorting of waste plastic bottles e.g. in those made of PE (which forms no dioxins during refuse combustion) and PVC which is its main supplier, it is suggested to fit to one half of the mould (fo) for blow moulding a coding stamp (Co) so that all bottles carry corresp. marking. A ram (Ste) is used to select a reasonably plane spot and a threaded hole is drilled to fix a sleeve (Hc) with the coding stamp (Co) relative to a stopper (Dr). ADVANTAGE - This permits unskilled personnel to sort the bottles before combustion.
Patent DE-3923666-A1 (DE)
Title: Vehicle windscreen wiper with wind deflector on main support - has lateral section with aperture joining inclined side of main support to parallel pivot mounting portion
Inventor: BAUER KURT
IPC: B60S1/38
Filed: 1989-07-18
Abstract: The vehicle windscreen wiper has an elastic wiper blade (11) fitted to a support assembly. The assembly main support has two side sections, one of which is inclined w.r.t. the wiper blade symmetry axis, to form or support a wind deflector (17). At pivot points (27) the inclined side section has a parallel mounting portion (25), fixing the pivot. A lateral section (30), at right angles to the mounting portion, connects the latter with a remaining inclined strip (31). The lateral section has an aperture (40) extending alongside the mounting portion. USE/ADVANTAGE - Lateral section does not restrict wiper blade movement.
Patent DE-3927762-A1 (DE)
Title: Roll bonding steel strip to aluminium strip - by spray coating steel with thin film of aluminium to improve bonding properties to avoid redn. in steel thickness
Inventor: RISSE HANS DIETER
IPC: B23K20/227
Filed: 1989-08-23
Abstract: An Al-precision steel composite strip is produced by roll pressing together an Al strip(11) and a steel strip(14) which has been precoated(15) with a layer of Al(alloy) by plasma spray, arc spray or flame spray coating. The core material is cleaned prior to roll bonding by brushing.  The Al strip is thicker than that of the steel. The coated composite sheet is finally diffusion annealed at 150 deg. C.  The thickness of the sprayed layer is 20-200mm. The thickness of the Al strip is approx. 2.5mm and that of the steel is approx.  0.4mm The thickness reduction of the steel during roll bonding is 5-20%. The Al may be coated with steel on one or both sides. ADVANTAGE - Good adhesion is ensured between the different strips during roll bonding which ensures that the steel retains its deep-drawability.
Patent DE-3928483-A1 (DE)
Title: Vehicle suspension system for non-steered axles - makes use of springs made of fibre reinforced plastics
IPC: B60G11/00
Filed: 1989-08-29
Abstract: The vehicle spring system is for non-steered axles with independent wheel suspension. The wheels are sprung by means of the springs (3,4) joined to a connecting rod (2). The springs (3) which extend forwards and the springs (4) which extend backwards are subject to tensile stress and are made from fibre reinforced plastics. USE/ADVANTAGE - Vehicle suspension system in which the whole of the spring cross section, and not just the core, is available for useful work.
Patent DE-3931503-A1 (DE)
Title: Combined agricultural tillage implement - is used for simultaneous slurry application and sowing seed
Inventor: PRITSCHER JOSEF
IPC: A01B49/06
Filed: 1989-09-21
Abstract: The agricultural tillage implement may be mounted on a tractor.  It has an arrangement for applying slurry. It incorporates a sowing implement (104), e.g. for sowing maize or beet, mounted on the unit for applying the slurry. The tractor may incorporate two large slurry tanks (10, 12), each mounted on a pair of wheels (26), and articulated together with a ball-hitch and two hydraulic rams for steering. There is a driver's seat and steering wheel on the front tractor unit. USE/ADVANTAGE - The combined implement does not damage the soil and allows simultaneous application of slurry and sowing of seed.
Patent DE-3933707-A1 (DE)
Title: Unstability compensation circuit for Hall sensor multiplier - compensates ageing of Hall sensor, nonlinearity and temp. variations
Inventor: ROZMAN MIRO
IPC: G01R33/07
Filed: 1989-10-09
Abstract: The compensation circuit for a multiplier using two separate Hall sensors (4, 5) which exhibit identical sensitivities coupled to identical amplifiers (6, 7), uses a voltage/frequency converter (10) providing a frequency which represents an output product, for comparison with a reference frequency (fr) via a comparator (11). The output signals from the latter are fed to a reversible counter (12) supplied with pulses from a clock source (CL) and coupled to an A/D converter (13) providing a reference input (r, r') for the first voltage/frequency converter (10)and a second voltage/frequency converter (9) providing the corrected output value (fc). Pref. the Hall sensors (4, 5) are provided on a single semiconductor chip in the air-gap between two magnetic cores. USE - For Wattmeter or electricity meter.
Patent DE-3940623-A1 (DE)
Title: Protective ceramic tiles for ballistic missile - have max. thickness at centre and decreasing towards edges
Inventor: STABENAU HANS GUENTER
IPC: F41H5/04
Filed: 1989-12-08
Abstract: A ballistic missile is provided with a protective covering (1) of square or hexagonal tiles made of ceramic or other hard material. Each tile has a central point of max thickness with the thickness decreasing uniformly from this central point to the tile edges. The outer surfaces of the tile is thus formed of sloping surfaces which intersect at ridges radiating from the central point. This feature deflects any bullet or other projectile striking the tile so that it slides towards one of the edges and thus causes less damage. In addition the weight and thickness of the tile are reduced. USE - Ballistic missiles.
Patent DE-4001773-A1 (DE)
Inventor: LANG VOLKER PROF DR
IPC: A61M16/08
Filed: 1990-01-23
Abstract: The invention relates to an apparatus for heating and humidifying gases, especially respiratory gases used in artificial respiration. This apparatus consists of two heat/humidity exchangers (4, 25) with, arranged between them, an active heating and humidifying arrangement in a housing. The first heat/humidity exchanger (4) is used for preliminary heating and preliminary humidifying of the cold, dry inhalation gases. In an active heating/humidifying arrangement (17-22) downstream, and in the second heat/humidity exchanger (25) additionally heated and humidified by the latter, the optimal physiological conditioning of the respiratory gases finally takes place (36-37 DEG  Celsius, 100% relative humidity). In the expiratory phase, 70-80% of the humidity and heat is recovered again from this optimally moist/warm respiratory gas with the aid of the two in-built heat/humidity exchangers (4, 25). 
<IMAGE>
Patent DE-4002477-A1 (DE)
Title: Textile strand wet treatment appts. - has swing drive jets round inner mantle to deliver fluid and drive material through inner tube
Inventor: KREITZ HANS
IPC: D06B3/26
Filed: 1990-01-29
Abstract: The appts. to apply a wet treatment process to textile strand material, using an inner tube with driving jets projecting from a ring zone filled with the treatment fluid between it and an outer tube, has the jets distributed round the inner mantle from the fluid-filled inner ring zone. The centre axis of each jet is aligned at an acute angle to the direction of material travel. ADVANTAGE - The appts. handles materials travelling at rates of more than 400 m/min., without damage.
Patent DE-4005825-A1 (DE)
Title: Valve armature for radiator in single pipe installation - has gravity-operated anti-siphon valve consisting of captive ball in grille seating
Inventor: WERNER KLAUS
IPC: F24H9/12
Filed: 1990-02-23
Abstract: The valve armature is for a radiator in a single pipe heating system. It has flow and return connections for the medium and a valve and gravity stop in the return (1).  The return (1) is partially vertical and opens in the direction of gravity. The gravity stop is an anti-syphon valve (2) with a ball (5) held in a grille seating (6) inside a liner (3) which narrows at one end (4) to grip the ball (5).  On the inside of the other end of the liner (3) is a raised ring fitting in a groove (8) in a threaded connector (9). USE/ADVANTAGE - Prevents the heating medium from flowing from the flow side into the return connection.
Patent DE-4010503-A1 (DE)
Title: Opto-electrical system using twisted nematic liq. crystal layer - sandwiched between two substrates coated with electrode layers on inner sides and having orientation layers on top
Inventor: SCHEUBLE BERHARD DR
IPC: G02F1/13363
Filed: 1990-04-03
Abstract: The liquid crystal layer has a parallel at homoedrope boundary orientation and a twisted angle between 0 and 90 deg.  Several layers compensate for optical set differences of liquid crystal layer, given by d.delta n it has at least one device allowing linear polarisation, arranged so that light can pass at least once through it, surface entering or leaving liquid crystal layers. To achieve a high contrast and/or high light intensity and/or a high field or view angle independency of contrasts and/or chromocity values the angle in constructed with directry of liquid crystal molecules on the substrate surface at the incident side of  the polarisation device.
Patent DE-4010932-A1 (DE)
Title: Fruit machine including microprocessor and random generator - always shows money in jackpot even after winning to entice starting or carrying on
IPC: G07F17/32
Filed: 1990-04-05
Abstract: Three disks (3) are spun in the normal way to give a symbol combination which may lead to a win. If the device comes up with a jackpot, the normal amount is always paid. In addition, a random number generator allows an additional amount which is geared higher and higher, the more the user scores jackpots. Therefore, after one jackpot, the user has more motivation to carry on spending his cash rather than taking the money home. ADVANTAGE - Users are relieved of more cash in the long run.
Patent DE-4011055-A1 (DE)
Title: Massaging shoe insole - comprises narrow strips with inclined blades protruding upwards
Inventor: KLEMM LOTHAR
IPC: A43B17/02
Filed: 1990-04-05
Abstract: The shoe insole is profiled to massage the sole of the foot.  The massage surface (2) comprises several narrow massage strips (3,3a), and whose massage profiles run at right angles to the lengthwise axes (X-X) of the strips. They consist of blades (5) alongside each other, protruding upwards in an inclined direction from their mounting surfaces (4). The width (6) of the blades can be equal to that of the strips. Those on adjacent strips can be arranged to slope upwards in opposite directions. ADVANTAGE - Increased massaging effect.
Patent DE-4011081-A1 (DE)
Title: Simultaneous mixing circuit for video recorder - separates video and speech signals with facility to mix in external source signals
Inventor: KIM YONG-SAN
IPC: H04N9/802
Filed: 1990-04-05
Abstract: A simultaneous mixing system for video and audio signals has an HF imput to a tuner (10) coupled to a video modulator (20) and a speech demodulator (60). A switching unit (30A) can select  either the videos signal from the modulator V1) or an external signal (V2), for rewarding (7) onto tape. A second switching stage (30B) allows stereo signals to be directed to a second switching stage (300) that also receives an external input (30B) allows stereo signals to be directed to a second switching stage (30D) that also receives an external input  (30C), the signals can be selectively (30E) recorded onto the tape. ADVANTAGE- Allows video and speech signals to be mixed from different sources.
Patent DE-4013009-A1 (DE)
Inventor: HOSHINO TAKAYUKI
IPC: G11B21/08
Filed: 1990-04-24
Abstract: In order to prevent hunting when the read/write head of a disk drive is moved to a desired position, a closed loop position control system includes a non-linear amplifier 21 whose gain is less for small position errors than for large position errors. This allows rapid movement to the vicinity of the desired position at a controlled speed followed by accurate final positioning. The non-linear amplifier may comprise a plurality of resistors and diodes (Fig 4, 6), each resistor being in series with a corresponding diode, and the resistor-diode series being in parallel. <IMAGE>
Patent DE-4015357-A1 (DE)
Title: Hydrogen@ recovery by electrolysis and oxidn. - using auto-light machine and use e.g. for hydrogenation or waste gas treatment
IPC: C25B1/02
Filed: 1990-05-12
Abstract: Recovery and oxidn. of H2 is carried out as follows. Sepn. of substances is carried out by electrolysis with direct current generated by solar, air or water power or air draught reaction. The autolight machine is used for O2 electrolysis, oxidn., hydrogenation and treatment of waste gases and carrying air and also for O2 enrichment in infiltration of the air supply, with simultaneous recovery of H2 for redn. and hydrogenation and of metals and storage in stationary or mobile plant. A diaphragm electrolyser may be used. The diaphragm, cathode and anode pref. have the same morphology and the electrodes have a honeycomb surface area of 0.1-8 m2/1 vol. The high stability of the morphology allows direct removal of the heat of electrolysis for optimising the cell voltage. Before entry, the O2 and H2 are mixed in the waste gas and superheated steam is used to convert soot in the waste gas to water gas. USE/ADVANTAGE - The exotherm of the O2-H2 mixt. (water) is used without the need for heating to generate superheated steam. The hydride-oxidised superheated steam can be used for removing soot, giving water gas which is recycled to the combustion chamber to save energy. The H2 can be used for waste gas treatment, hydride prodn., pref. from Mg, and carbonisation, whilst the O2 is useful for enriching air. The waste heat from the electrolyser is useful for heating or cooling purposes.
Patent DE-4018233-A1 (DE)
Title: Determining inductor threshold concn.linomprises rotating drum for clothing, path for circulating hot air, heat-exchanger to dehumidify air, path for introducing cooling air, etc. - detects start of coagulation or aggregation whilst feeding activating agent into heated measurement
Inventor: KOMANNS ARIBERT DR
IPC: G01N33/86
Filed: 1990-06-07
Abstract: The material under investigation is fed into a heated measurement device whilst being continuously mixed at constant rate with coagulation or aggregation activating material over a long period. The quantity of the activating agent delivered up to the time at which the coagulation or aggregation starts is the  measurement parameter. The start of coagulation or aggregation is detected mechanically, or optically (2,3). The stirring mechanism (4-6) contains a motor driven magnet (5). USE/ADVANTAGE - Enables automatic recording of threshold conc.
Patent DE-4018386-A1 (DE)
Title: Segmented drive cage for sub-calibre shell - has recesses contg. barrel wear-reducing additive
Inventor: JUNGBLUTH DIETER DIPL ING
IPC: F42B14/06
Filed: 1990-06-08
Abstract: A segmented drive cage for a sub-calibre heavy shell has one or more recesses (26) in the rear portion (14) of each of its segments (10), the or each recess terminating in a guide/seal strip (24) and contg. a barrel wear-reducing additive (36), pref.  consisting of TiO2, wax and binder. Pref. the recess (26) is pref.in the form of a radical blind hole (26) connected to an axial blind hole (28) and provided with an additive cartridge (36). The additive is expelled from the radial bore (26) by the gas pressure of the propellant charge gases and is distributed onto the barrel inner wall in the region of the guide/seal strip (24). ADVANTAGE - The design provides targetted supply and distribution of the additive onto the barrel inner wall.