baber/WOPTO huggingface dataset:
Patent DE-3942900-A1 (DE)
Title: Cooking point for electric cooker - has glass ceramic hob over heating zones each with 2 halogen radiators and 3 radiation heaters switched in and out in stages
Inventor: VENJAKOB RAINER
IPC: H05B3/74
Filed: 1989-12-23
Abstract: The cooking point has its heating elements comprising a combination of halogen radiators and radiation heating bodies located beneath a glass ceramic hob. The heating elements are switched in step to control the heating power. Two halogen radiators (R4,R5) with at least three radiation heating bodies (R1-R3) are combined into one cooking zone heating arrangement. One radiation heating body (R3) has at least twice the  resistance of either of the other two bodies (R1 or R2). The fluid body (R3) is switched on in the two lowest stages and in the second highest stage. The lowest switching stage has a power setter in its heating circuit to reduce heating power. ADVANTAGE - No divides are needed to achieve wanted degree of time adjustment to heating levels.
Patent DE-3943049-A1 (DE)
Title: Opto-electronic device releasing electrically-operated lock - includes electromagnet energisable only by photodetector of laser beam reflected from contour ground into correct key
Inventor: SCHREIBER HANS DR DR
IPC: E05B49/00
Filed: 1989-12-28
Abstract: The key (1) fitted into the lock (13) bridges two contacts (11,12) to complete the circuit supplying power from a source (3) to a laser diode (4), whose beam (5) is reflected (7) on to a photodetector (8) controlling the electromagnet  (14). The reflection takes place in a transparent combination of two layers having different optical densities (6a,6b) and backed by a distinctive grinding pattern (17). An electronic memory (9) may record which of several keys (1) was last used. ADVANTAGE - Max. security against unauthorised opening achieved with innumerable variants of reflecting contour which can be copied only with greatest difficulty.
Patent DE-4000783-A1 (DE)
Title: Corona discharge cell - for ozone generation, having ground quartz dielectric layer
Inventor: WOOTEN ROBERT D
IPC: H01T23/00
Filed: 1990-01-12
Abstract: (A) In a corona discharge cell with a dielectric layer which is bonded to a first electrode and which is spaced from a second electrode by an air gap, the dielectric layer consists of quartz with (i) max. 0.76mm thickness and mmore than 161 sq.cm. area or (ii) 0.51mm thickness and more than 103 sq.cm. area, has the same area as the first electrode face and is formed by bonding a quartz layer to the first electrode and then grinding to the required thickness (max. 0.76 mm or 0.51 mm). (B) An ozone generating cell is produced by (a) permanently bonding a dielectric quartz plate to a first electrode; (b) grinding the quartz plate to less than 0.89 mm thickness after hardening the adhesive; and (c) fixing a second electrode relative to the first electrode/quartz dielectric structure to form an air gap between the quartz dielectric and the second electrode. USE/ADVANTAGE - The cell is used to generate ozone esp. for use as process gas in the semiconductor industry, but also for other applications such as water clarification. It generates high purity, high concn. ozone at relatively low operating voltages.
Patent DE-4002371-A1 (DE)
Title: Two=part microswitch container
Inventor: HAUK KLAUS
IPC: H01H21/28
Filed: 1990-01-27
Abstract: The container for a microswitch comprises two plastic container halves with aligning pins (42). Two long apertures (20, 66) are integrated in the container halves for assembly using large diameter screws. The switch (34) is operated by a leaf spring (28) freely located in an O ring (26) between the two halves of the container. By being specially shaped the leaf spring (28) can be operated in different directions with different forces thus protecting the microswitch (34) against mechanical overloading. Three closely packed electric connection cables (32) extend out of the container.
Patent DE-4003750-A1 (DE)
Title: Thixotropic form aluminium hydroxy-thiocyanate gel - astringent and microbicide useful for treating wounds, with no side effects
Inventor: BEHRENDS SABINE
IPC: A61K33/08
Filed: 1990-02-08
Abstract: Al hydroxythiocyanate gel (I) is in a thixotropic state with an Al-thiocyanate ratio of 8-2:1. Al-thiocyanate ratio is pref. 5:1 and (I) also contains an alkali(ne earth) element of ratio to thiocyanate being 1:1-2. USE/ADVANTAGE - (I) is an astringent and microbicide used for treatment of wounds. (I) are effective against the usual microbicidal irritants in wounds, e.g. S. aureus, E. Coli, P.  aeruginose and Candida albicans. 2 hours after treatment of wounds with (I) a noticeable redn. in the microbe population is observed. (I) are easy to apply to the wound, have quick action and show no side effects.
Patent DE-4003929-A1 (DE)
Title: Stiffener for container's lengthwise base support - consists of curved piece with bridge and horizontal plate
Inventor: SEIDENSTUECKER BERNHARD DIPL I
IPC: B65D90/08
Filed: 1990-02-09
Abstract: The stiffener, for use along the lengthwise support for the base of a double walled insultated container, is curved and contained in a vertical flange (2) resting above the horizontal bridge-piece (1), joined to the container's side (4). The stiffener is contained in a vertical flange (3) resting beneath the horizontal bridge-piece (1) and is connected to the container's base (5). An additional stiffening section (10) to the lengthwise support section for the base (A) is for diagonal stiffening.  Underneath the horizontal bridge (1) on the bottom vertical flange is a horizontal plate (6) taking the container's base (8) and resting on the container's cross-struts (7). USE/ADVANTAGE- The stiffener for a container provides diagonal stiffening and makes the lengthwise base support torsionally rigid.
Patent DE-4005130-A1 (DE)
Title: Frequency compensation for long HF cables - separates feed signal source from pilot amplifier in short time intervals
Inventor: ETLER GERHARD
IPC: H04B3/04
Filed: 1990-02-17
Abstract: The compensation is for reception aerials with pilot amplifiers, e.g. for analog on digital signal processing. The feed signal source (1) is separated in short time intervals from the pilot amplifier (2) with the separated source, a calibrating signal is fed to the pilot amplifier and is tuned at constant level with the respective reception frequency. - The calibration signal feed is carried out at the same attenuation losses as occur on the reception cable (3). The losses on the reception and calibration signal cables are kept constant by energising integrated, variable attenuation members (4, 8) for different reception frequencies for both cables.
Patent DE-4009134-A1 (DE)
Title: Axial play adjustment in electric motor - using plastics sleeve cut or deformed to length for operation which is both reliable and simple
IPC: H02K15/16
Filed: 1990-03-21
Abstract: Axial play adjustment between the rotor and the stator-mounted bearings of an electric motor is effected by a plastics spacer sleeve which is pushed onto the rotor shaft and which can be shortened to the operative spacer length. The novelty is that the spacer sleeve is shortened by cutting off the excess spacer length or by plastic deformation of the sleeve. Also claimed is a similar process using an insulating end disc arranged at least at one front end of a rotor plate stack, the novelty being that the spacer sleeve is integrated with the insulating end disc, esp. as a one-piece plastics part. ADVANTAGE - Operationally reliable axial play adjustment is achieved in a simple manner.
Patent DE-4011710-A1 (DE)
Title: Axial gap between two moving components - is closed by peripheral seal consisting of grooved support ring and sealing lips with balls
Inventor: HANSER HAGEN
IPC: F16J15/44
Filed: 1990-04-11
Abstract: The peripheral seal closes an axial gap (3) between two relatively moving parts (2a, 2b). It consists of a grooved (7) support ring (5) on the one component (2a), and at least one peripheral sealing lip (11a) fitting into the axial gap (3). The groove (7) contains a number of ceramic spacer-balls (8) supported by a ring (9a) on the second component (2b). Between the sealing lip (11a) on the one side and the ring (9a) or second component (2b) on the other side is a shallow sealing gap. USE/ADVANTAGE - The peripheral seal gives little friction between the relatively moving components, and minimises leakage losses.
Patent DE-4012039-A1 (DE)
Inventor: FEUERSTACKE EWALD DIPL ING
IPC: B22D11/20
Filed: 1990-04-11
Abstract: The invention relates to a method for determining and regulating the liquid metal level in a metallurgical vessel, especially an open-ended die of a casting plant. In order to provide a method in which the liquid level can be determined and regulated in a simple and reproducible manner, it is proposed that inert gas be introduced into the molten metal at a certain freely selectable point within the vessel, that the flow rate and absolute pressure of the inert gas introduced be measured, that the absolute pressure measured when the zero value of the flow rate is exceeded be recorded and the actual value of the distance of the surface of the liquid from the point at which the inert gas is introduced be determined from the difference between the absolute pressure and the pressure acting on the surface of the liquid, that the difference from a predetermined setpoint value be determined from the said distance ascertained and fed as an electric actuating signal to an actuator for regulating the liquid metal level and/or the quantity flowing out or withdrawn from the vessel. 
<IMAGE>
Patent DE-4013608-A1 (DE)
Title: Heating radiator fitment - prevents dirt deposits on wall by flow retarding slab of open-celled foam
Inventor: KAIM LEO
IPC: F24D19/06
Filed: 1990-04-27
Abstract: Heat release appts (1) such as an electric night storage heater or an enclosed radiator for a central heating system which is to be mounted on a wall (4) is installed on a base plate (3) such as to leave an air gap between. The appts (1) receives on its rear near the top end a flow retarding element (2), made of heat resistant material (up to 100 deg C). The pref material is open-celled PU foam with 2-3 mm pores, divided by 0.2 mm webs and permeable to air. This barrier element (2) is pref self-adhesive. ADVANTAGE - The slower air circulation at the rear eliminates the ugly streaks of dirt deposited against the wall.
Patent DE-4017334-A1 (DE)
Title: Moisture retaining planting soil - made of vulcanite or fired clay with water retaining copolymer and water blocking mineral fibre
Inventor: FABRITZ GERHARD
IPC: A01G31/00
Filed: 1990-05-30
Abstract: Soil base for planting and cultivating various plants  comprises a base. granulate of vulcanite and/or fired day with a water storing high swelling copolymer and water flow inhibiting mineral fibre. The mineral fibre is comminuted store wool and the copolymer is coloured the same colour as the vulcanite or clay. The  base material consist of 90-95% vulcanite or clay and 1% copolymer and 4-9% fibre. The vulcanite is lava or pumice stone. ADVANTAGE - Retains moisture content for long time thereby eliminating need for rewatering after short intervals.
Patent DE-4017418-A1 (DE)
Title: Double tuner type radio receiver - has two oscillators selectively coupled to phase detector, filter, smoothing circuit and divider to form two PLL-circuits
Inventor: HATORI TOMOYASU
IPC: H04B1/26
Filed: 1990-05-30
Abstract: A programmable frequency divider (14) is alternatively fed with one of two superimposition signals output from two receive oscillators (4,11). A phase difference detector (15) produces a d.c. output dependent on the phase difference between a divider output, and a standard signal. A low-pass filter (17) removes a wave varying component from the detector output, and feeds a fitlered or smoothed d.c. component alternatively to the first or second oscillator (4,11). Two PLL(s) may each comprise the detectors, the low pass filter and one of the two oscillatorse, and a control circuit (18) may control their tuning. USE - RDS receiver.
Patent DE-4019806-A1 (DE)
Title: Disc brake with internally ventilated disc - has ventilation hole with spray nozzle for water, and ventilation space, friction rings and pipe
Inventor: IRASCHKO JOHANN DIPL ING
IPC: F16D65/12
Filed: 1990-06-21
Abstract: The brake incorporates an internally-ventilated disc (4). Directly in front of the radially inner ventilation hole of the brake disc (4) is a fixed spray nozzle (11) for spraying water as a cooling fluid into the ventilation space (8) of the brake discs (4). The brake disc (4) is positioned radially inside a friction disc (5) and has an annular air-suction space (9) with two axially-displaced friction rings (6) joined by ventilation ridges (7) or bolts. The spray nozzle has a spray-pipe (11) inside the air-suction pipe (9) and possessing spray-holes (14) pointing to the ventilation-space (8). USE/ADVANTAGE - The brake-disc does not reach a dangerous temp. under extremely high and relatively short-term braking loads.
Patent DE-4019939-A1 (DE)
Title: Conveyor system operating mechanism - has second free rail, to raise front load-carrying trolley
Inventor: HOHNSTEIN JUERGEN
IPC: B61B10/02
Filed: 1990-06-22
Abstract: The process is for the operation of a system having a free rail and a power rail above it. Two trolleys move in the free rail, and have suspended cross arms, to carry the load, e.g.  aluminium profiles, to be processed. The front trolley, with the suspended front end of the cross arm, is raised to a higher level, so that the loads it carries are suspended at an angle of several degrees. There is a second free rail (7) above the first (8), and the first trolley (3) moves into this via points (11), before the load enters the processing channel. The rear trolley (2) continues in the lower free rail. USE - Operation of conveyor system.
Patent DE-4021147-A1 (DE)
Title: Control of gravity die casting process for broad steel belts - in which sensors on molten steel input side determine steel condition and vary output parameters accordingly
IPC: B22D11/16
Filed: 1990-07-03
Abstract: A sensing device for continuous metal casting of broad steel belts is described. The casting can be through a gravity fed mould with continuously controlled section thickness or through a variably controlled die onto a moving surface such as a drum or a belt. The sensors are used to record the condition of the incoming fluid steel and can include temp. and degree of crystallisation. Information from the sensors are fed to a control unit which controls the die size, haul off speed and other parameters on the output side relative to the molten steel condition. USE/ADVANTAGE - For controlling the continuous casting of metal belts, particularly broad steel belts, in a gravity die casting method.
Patent DE-4028986-A1 (DE)
Title: Vehicle facia or parcel shelf has integral ventilation channel - has channel filled with heat conducting particles, esp. ceramic balls or air-permeable ceramic foam
Inventor: PFADENHAUER DIETER
IPC: B60H1/32
Filed: 1990-09-13
Abstract: A ventilation channel (6) passes through an interior fitting (2), esp. a vehicle facia or parcel shelf. It runs parallel to the upper surface of the fitting. The channel is filled with heat conducting particles (7), pref. ceramic balls or air-permeable ceramic foam. USE/ADVANTAGE - Improved heating or cooling of the parcel shelf and vehicle.
Patent DE-4032410-A1 (DE)
Title: Electrical light supply - has voltage reduced by diode, inductance or thyristor circuit to improve operational life
Inventor: NIEMINEN TAPIO
IPC: H05B37/02
Filed: 1990-10-12
Abstract: The electrical lighting unit of the type used to indicate exit points from a building is coupled in series with an arrangement that reduces the effective operating voltage to increase operational life. In one version a diode (2) is placed in series with the lighting unit (1) and provides half wave rectification to reduce the voltage. Other versions replace the diode with an inductance to produce a voltage drop or a trial/thyristor to rectify the supply. ADVANTAGE - Reduces operating voltage to improve operational life.
Patent DE-4038727-A1 (DE)
Title: Lens adjustment arrangement for frame mounting of lenses - has mechanical adjustment system and optical system for generating and evaluating reflex images
Inventor: GESELL BODO
IPC: G02B27/62
Filed: 1990-12-05
Abstract: The arrangement for adjusting lenses consists of a mechanical adjustment arrangement and an optical system for generating and evaluating reflex images. The mechanical axes of a gripping point (8) and of a bearing (15) are coupled via a rotary drive (14) and aligned w.r.t. a holder with a lifting mechanism by a wedge connection (10). The optical system is arranged so that a receiver (2) behind a semi-transmitting mirror receives the reflex image of the mark on the adjustment surface of the object (11) and has an adjustable focussing range. Optical couplers (16.1), offset by 180 deg. and on a rotatable ring, and a rotary, slotted aperture (16.2) are used to produce a reference signal for evaluating the phase and degree of object surface decentring. A manipulator (18) can be moved towards the object with the holder raised. ADVANTAGE - Enables lens to be aligned w.r.t. reference axis and mounted in mechanical holder for radius region adjustment.
Patent DE-4040674-A1 (DE)
Title: Fluoro-polymers contg. carboxyl gps. or gps. derived. therefrom - by oxidn. of omega-h per:fluoro side chains, at 150-300 deg. C to form cof gps.
Inventor: BLICKLE PETER DR
IPC: C08F8/06
Filed: 1990-12-19
Abstract: Perfluorinated polymers (I) contg. monomer units of formula (II) (with m = 0-3; n = 2-10; X = COF) are produced by reaction of the corresp. polymer (III) contg. units of formula (II) (with X = CF2H) at 150-300 deg C with a gaseous oxidising agent (IV) which is capable of liberating iodine from acidified aq. KI soln.  Pref. (I) also contain monomer units of formula CF2=CF-R (with R= F or 1-10C perfluoroalkyl, pref. F or CF3), and pref. F or CF3), and pref. also units of formula (II) (with m = 0-3; n = 1-10; X = CF3); pref. comonomer units are omega-H-perfluoropropyl perfluorovinyl ether (H-PPVE) and TFE, esp. pref. with perfluoropropyl perfluorovinyl ether (PPVE) as third comonomer; (IV) is a nitrogen oxide, or air, O2, ozone or a mixt.; polymers (I) (with X = COOH or X = CONH2) are produced directly by adding to (IV) an amt. of water vapour or NH3 which is equal to or greater than the mol. wt. of CF2H gps.. USE/ADVANTAGE - (I) (with COOH or carboxy derivs. as functional gps.) are useful for the prodn. of cation exchange membranes for chlor-alkali electrolysis, and for the prodn. of hydrophilic coatings on hydrophobic polymer surfaces. The invention provides a simpler, less expensive process for the prodn. of (I), compared with prior-art processes.
Patent DE-4106052-A1 (DE)
Title: Rubbish dump build=up - uses a netting layer with a flue dust and cement suspension to seal and neutralise the surface and take more dumped rubbish
Inventor: ZINKE BERNHARD DIPL ING
IPC: B09B1/00
Filed: 1991-02-22
Abstract: In the redevelopment of old rubbish dumps, where a suspension of flue dust and cement is applied to the dumped material, a netting type reinforcement is secured to the surface of the dump. This is followed by a sealing and neutralising layer of a granular material from a dried reacting flue dust and/or harmful matter and/or a mixt. of them, after they have been satd. in water, and compressed for bonding into the max. density for a solid layer. This gives a seamless sealing layer with a textile reinforcement of a flue dust and cement suspension in a covering with max. solid layer density. ADVANTAGE - The technique allows redevelopment of rubbish dumps with a covering which is durable, resistant to applied weight and flexible yet with a high strength. It gives a covering and a protective layer for further rubbish to be placed over it.
Patent DE-4107871-A1 (DE)
Title: Equipment for pointing needles, etc. - consists of fixture with inclined hole in which needle is loosely held against face of grinding disc
Inventor: POELL MARTIN
IPC: B21G1/12
Filed: 1991-03-12
Abstract: The equipment for pointing needles and similar articles consists of a grinding disk (1) with its face vertical and a fixture (2) for feeding and positioning hte needle against the disk. The fixture has an inclined passage providing a feed hole (3) at the top and an emit hole (4) at the side. The needle is dropped into the feed hole of the fixture and is presented to the disk at the point angled with the disk rotating against the direction of feed. The grinding force exerted by the disk momentarily lifts the needle, which also rotates. This process continues until a complete point is produced. The fixture, which can be of circular section, has a diameter which is between one half and one to twentieth of the needle length. In relation to the grinding disk face the exit hole is approx. limited by the straight sides of a section having one side 20 deg. below and the other 45 deg. above the horizontal. ADVANTAGE - Simple method of producing high quality point.
Patent DE-4108811-A1 (DE)
Title: Regulating current supply to electro-filter - measuring parameters on primary side for regulation of filter voltage
Inventor: DOENIG GERHARD DIPL ING
IPC: H02M5/27
Filed: 1991-03-18
Abstract: The current supply uses a measuring and control stage (1) for monitoring the voltage in the intermediate circuit on the primary side, for automatic regulation of the secondary electrical parameter values, e.g. the filter voltage. Pref. the mains voltage is fed to a current regulator (2) supplying a HV transformer (3), coupled to the electrofilter (5) via a rectifier (4). The measuring and control stage (1) for the current regulator (2) is pref. coupled to an automisation device (6) using a programmable control or a personal computer. ADVANTAGE - Allows automatic operation.
Patent DE-4141318-A1 (DE)
Inventor: KOBLITZ RUDOLF
IPC: H04N9/64
Filed: 1991-12-14
Abstract: For the purposes of blocking point control, brightness signals are to be taken via a shared line and an achromatic image is to be shown during this time. According to the invention, at least individual brightness signals are to be taken to a measuring device via switching means in succession and/or simultaneously. Those not conveyed are taken to a device generating electric voltages. The invention is preferably used in a television receiver with a cathode ray tube.
Patent DE-4143346-A1 (DE)
Title: Integrated power semiconductor switch - has buried oxide layer insulating lateral MOSFET source from substrate and epitaxial layer
Inventor: MUETTERLEIN BERNWARD DIPL ING
IPC: H01L29/74
Filed: 1991-01-09
Abstract: The integrated switch comprises a lateral thyristor (2), controlled by a lateral MOSFET (3) having its drain/source path (11,12,13) in series with the cathode/anode path (4,5,6,7) of the thyristor (2). A buried oxide layer (8) is used for insulating the source (13) of the lateral MOSFET (3) from the substrate (7) and the epitaxial layer (6). Pref. the buried oxide layer (8) encloses the lateral MOSFET (3), which has its drain (10) coupled to the cathode (4) of the thyristor (2) and its source (13) coupled to the anode (7) of the latter. USE - For voltages in range between 500V and 1500V.
Patent DE-4202078-A1 (DE)
Title: Shaft bearing with controlled clamping pressure - has clamping faces each side of shaft with recessed profile to increase clamping force.
Inventor: LEITNER PETER
IPC: F16C35/02
Filed: 1992-01-25
Abstract: The shaft bearing has a fixed base and an upper shell (20) which is secured to the base by two screws (18) straddling the shaft. One end of the base and shell has a shaped recess for the bearing. The mating faces (24) under the screws have one face (24a) recessed to spread the tightening torque to the bearing. The recess is in the upper shell mating face and includes an edge groove (38) to operate as a lubricant duct. The recesses are separated from the shaft bore by narrow lips. ADVANTAGE - Simple design for increased tightness.