baber/WOPTO huggingface dataset:
Patent DE-3830672-A1 (DE)
Title: Bowden control with automatic length compensation
Inventor: HORNIVIUS LOTHAR
IPC: F16C1/22
Filed: 1988-09-09
Abstract: A description is given of a Bowden window lifter for cars and similar vehicles. The Bowden control comprises a cable which is guided in a tube. The tube is divided into two parts which are connected in the manner of a free wheel by balls, rollers or the like to form a continuous tube at the moment of actuation of the Bowden control. The balls are seated in a ball cage which is pressed by a clamping sleeve seated on the cable into a rest position in which the balls are raised from their contact surface on one part of the tube and which, when the clamping sleeve moves away during cable displacement, is pressed by a spring into a working position in which it clamps the two parts of the tube together. The Bowden control is distinguished by the fact that one end of the tube is formed by a housing in which the free space provided for the movement of the clamping sleeve is such that the latter participates in the entire longitudinal displacement of the cable during the actuation of the Bowden control.
Patent DE-3836337-A1 (DE)
Title: Method and device for recording intracorporally generated, laser-induced shock waves
Inventor: MEESSEN STEPHAN DR
IPC: A61B18/26
Filed: 1988-10-25
Abstract: The invention relates to a method and a device for recording shock waves generated intracorporally as a result of a laser-induced break-through of a suitable matter in a rinsing medium for the purpose of crushing objects in organs, vessels or the like, by measuring the pressure of the reflected shock waves.
Patent DE-3836781-A1 (DE)
Title: Process for the N-alkylation of piperazine
Inventor: BLANK HEINZ-ULRICH DIPL CHEM D
IPC: C07D295/02
Filed: 1988-10-28
Abstract: Piperazine can be alkylated on the N atom by catalytic hydrogenation with C1-C4-aldehydes, working in the presence of 25-80% by weight of a C1-C6-alcohol.
Patent DE-3838413-A1 (DE)
Inventor: MANG PAUL
IPC: G01R1/073
Filed: 1988-11-12
Abstract: An adaptor arrangement for electronic test devices for printed circuit boards such as wiring carriers and the like, carrying an adaptor plate (8) in the form of a through-plated printed circuit board for compensating locally increased interconnection densities between the regular basic grid (3) of the test device and the variably arranged connection points (6) of the test specimen (4), and having resilient contact means for compensating possible vertical fluctuations in contact height at the test specimen. The novelty and inventiveness is to be seen in the fact that there is arranged on each contact surface (12, 13) on at least one side of the adaptor plate (8) at least one cushion-like plug (14, 15) in each case made of an electrically conductive, resilient elastomer, a plug of each contact surface being arranged electrically insulated with respect to the plug of each neighbouring contact surface. In another embodiment of the invention, it is proposed that the adaptor plate (8), which is provided with metallic contact surfaces (12, 13) on both plate surfaces, is constructed as a thin, flexible foil, which because of its inherent flexibility is able to balance possible vertical fluctuations in contact height (vertical to the plane of the test specimen). 
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Patent DE-3902593-A1 (DE)
Title: Arrangement for rotating the polarisation plane of a linearly polarised microwave through 90@
Inventor: CALLSEN HEINRICH DIPL ING
IPC: H01P1/165
Filed: 1989-01-28
Abstract: The invention relates to an arrangement for rotating the polarisation plane of a linearly polarised microwave through 90@, in which, for example, a T-shaped or Y-shaped aperture is arranged between two waveguides arranged mutually coaxially. The incoming waveguide is, for example, a rectangular waveguide, in which only the H10 fundamental wave mode of the microwave can propagate. The outgoing waveguide has, for example, rectangular, square, elliptical or circular cross-section, having dimensions such that only the two mutually orthogonal linearly polarised fundamental wave modes can propagate. The aperture is made and fitted with at least two PIN diodes in such a way that, from the horizontally linearly polarised wave in the incoming waveguide, a wave with linear polarisation rotated through +45@ or -45@ with respect thereto is produced in the outgoing waveguide. In the outgoing waveguide, the polarisation plane of the microwave is consequently rotated through 90@ by switching over the PIN diodes driven complementarily to each other.
Patent DE-3903963-A1 (DE)
Title: Method for continuous production of electrical cables
Inventor: SCHMIDT JOACHIM DIPL ING
IPC: H01B13/00
Filed: 1989-02-10
Abstract: For the continuous production of electrical cables having cores whose insulated electrical conductor consists of a solid profile wire, a profiled wire (8), which corresponds to the cross-sectional shape of the cores, is initially formed out of one or more metallic strands (1), after they have been melted, by friction and pressure (2; 3), and the core insulation is subsequently extruded on (9) in a line onto the profile wire (8), which is still hot as a result of this forming process (Fig. 1). <IMAGE>
Patent DE-3916187-A1 (DE)
Title: Controlling sealing oil slurry to sealing system - constant pressure difference between internal pressure in housing contg. gas and that in sealing system
Inventor: KONSCHAK RAINER
IPC: H02K5/124
Filed: 1989-05-18
Abstract: A motor (5) and pump (6) maintain a defined difference between the internal pressure in a housing (1) contg. a gas and that in a sealing system (3) sealing oil feed line (4). A differential pressure sensor (9) signal is fed to a controller (12) as the actual signal (10). The controller error signal drives a frequency converter (14)  whose output frequency varies with the control error and controls the motor via a power circuit. USE/ADVANTAGE - For flexible control of pressure in sealing oil feed to sealing system for housing contg. gas, pref. hydrogen, under pressure preventing delivery of unnecessary oil quantities. Esp. for hydrogen cooled generator.
Patent DE-3917951-A1 (DE)
Title: Nitrided piston ring
Inventor: ONODA MOTONOBU
IPC: F16J9/26
Filed: 1989-06-01
Abstract: A piston ring has a nitride layer, which is formed on its lower surface, and a heat- and abrasion-resistant synthetic resin layer, which is formed on the nitride layer to prevent aluminium from being removed from the piston-ring grooves concerned and being deposited on the surface of the piston ring when the piston is made from an aluminium alloy. The piston ring does not have a phosphate layer on the bottom but instead has the nitride layer to which the synthetic resin coating is joined.
Patent DE-3918344-A1 (DE)
Title: Electronic alarm clock with selectable sound - has programmable sound carrier e.g. transistor reproducing digitised original sounds and/or voices
Inventor: JANSEN GEB POLITZ
IPC: G04C21/28
Filed: 1989-06-06
Abstract: The alarm unit (3) has a sound-programmable sound carrier (12) connected to a loudspeaker (5). The carrier is in the form of a semiconductor (4), magnetic tape, programmable disc, CD or similar. The carrier can be coupled to a random generator (6) which can be switched off. The sound carrier can be exchangeably mounted in the clock housing (7). If in semiconductor form, the sound carrier can be realised as an insertable card or RAM chip. A microphone (8) can be used to pick-up and convey the sound produced.  An i.r. receiving diode (9) can be installed to serve as a remote control sensor for switching off the alarm. ADVANTAGE - User choice for waking in least rude way.
Patent DE-3918649-A1 (DE)
Title: Helping young children to learn to walk - involves hollow cone constructed from inflated rubber tubes
IPC: A47D13/04
Filed: 1989-06-08
Abstract: The appts. is used for helping young children to learn to walk, and consists of inflatable circular tubes (1) made of rubber or similar material. The tubes are placed one upon another with the largest tube at the bottom and the smallest tube at the top with the tube dias. decreasing progressively from bottom to top.  The appts. is mounted on castors (11) fixed to the bottom ring. The child stands inside the appts. or sits on a seat (9) fitted inside the appts. The appts. is self-stabilising and cannot be tipped over. USE - Helping young children to learn to walk.
Patent DE-3926771-A1 (DE)
Title: Towed target aircraft - comprises sack material airtight from acoustic sensor mounting to air inlet upstream
Inventor: FISCHER HANS-OTTO
IPC: F41J9/10
Filed: 1989-08-12
Abstract: The towed target aircraft comprises a folded sack of air-permeable material and which unfolds under the effect of air flow on ejection from the towing aircraft. It is towed by rope and forms a rigid target with external acoustic sensors at the middle. The material (8) of the sack (1) is air-tight in the upstream direction from the mounting (5) for the sensors (6) to the air inlet (7). ADVANTAGE - No effect on sensitivity of sensors while practice shooting with small-calibre firearms.
Patent DE-3932726-A1 (DE)
Title: Multilayer, point-elastic, difficultly flammable wall covering - comprises textile top layer, middle layer of open celled foam, rear layer of flexible closed cell foam, and intervening adhesive layers
Inventor: WIERTELARZ HELGE
IPC: B32B5/24
Filed: 1989-09-30
Abstract: Covering (I) with difficultly flammable rating (DIN 4102) B1 comprises (A) top layer (14) comprising textile flat material of high temp. resistant, practically noncombustible, glass and/or aramide and/or semi-polyimide fibres (B) rear layer (10) of flexible, closed cell foam (C) between (A) and (B), an intermediary layer (12) of open celled, difficultly flammable foam based on polyurethane, modified polyurethane, and/or polycarbodi-imide, which becomes at least partly carbonised under action of flames (D) and (E), adhesive layers (11,13) based on heat-sealable, heat-activatable adhesives which firmly bond, respectively, (C) to (B) and (C) to (A). USE/ADVANTAGE - Wall cladding in public places such as sports hall, hospitals, lift cabins, aeroplanes, buses. (I) has required difficultly flammable properties.
Patent DE-3932871-A1 (DE)
Title: Heat recovery device for shower bath - has horizontal discharge pipe for warm waste water in path of entering cold water
Inventor: HAHN ANDREAS
IPC: F28D21/00
Filed: 1989-10-02
Abstract: The method of recovering heat from kitchen or similary equipment particularly a shower bath uses a vessel (W) such as the foot bath of the shower to collect used water so that heat can be extracted for preheating the cold water supplied to the water heater (H). The outlet pipe (A) from the vessel travels horizontally through a chamber (B) through which passes cold water entering from the supply pipe (K). The discharged warm water travels in counterflow to the incoming cold water. USE/ADVANTAGE - Less heat is required due to heat recovery from kitchen sanitary equipment.
Patent DE-3933529-A1 (DE)
Title: Steam-generation method using fluidised bed - involves air supply to bed restricted to below stoichiometrically-necessary level
Inventor: SCHINKEL FRITZ DIPL ING
IPC: F23C10/00
Filed: 1989-10-04
Abstract: The steam-generation plant is esp. for a thermal power station.  It burns solid fuel such as coal in a fluidised bed. Combustion takes place in the latter at low temp. up to approx. 900 deg.  C. additional heat being delivered to the gas above the bed. The heat is supplied in the free space (3) above the bed (2), the amount of air delivered to the latter being throttled to below the stochiometrically necessary level, while that to the free space is increased. USE/ADVANTAGE - Steam generation plant with min. pollutant emission to atmosphere.
Patent DE-4000025-A1 (DE)
Title: Device for machining workpieces to slightly elliptical section - is subject to hydraulic pressure control from computer operating on tool carrier position and angle measurements
Inventor: GERK WILFRIED
IPC: B23B19/02
Filed: 1990-01-02
Abstract: The tool holder (4) is secured into a housing with a slot (8) for a piston-cylinder adjustment device supplied (10) with fluid under pressure, producing radial excursions of the cutter (12) up to about 500 microns. The source of pressure is a multiway valve (20) adjusted (22) by the electrical signal from a processor (54) and supplied continuously from a pump (32) in accordance with signals from encoders (62,64,66) of linear displacement and angular position of the tool carrier (6). ADVANTAGE - Workpieces with slight axial and polar deviations from exact cylinder can to machined to tolerances of few microns.
Patent DE-4000103-A1 (DE)
Inventor: DALLMER JOHANNES DIPL ING
IPC: E03F5/042
Filed: 1990-01-04
Abstract: An insertion part (20) which is circular in plan, is sealingly inserted in a pot (10) having a lateral inlet connection (13) and an opposite outlet connection (14). A semicircular shaft (23), which receives water from above or through the lateral connection (13), is formed on the inlet side through the insertion part by a straight baffle (23a) moulded thereon. The water rises in a crescent-shaped shaft (29) opens, by means of its pressure, a backwater flap (28) hinge-mounted on the insertion part, flows over a baffle plate (16) and out through the connection (14). As a result of the backwater flap, a barrier is provided against water flowing back. In addition, it acts as an odour seal when no water level is present. <IMAGE>
Patent DE-4003178-A1 (DE)
Title: Phenol resin gear wheel having more durable teeth - of phenol reinforced with meta-aromatic polyamide spun fibre cloth
Inventor: MIKUNI MITSUZO
IPC: B29K61/04
Filed: 1990-02-03
Abstract: Phenol resin toothes wheel (10) has toothed portion (18) formed by moulding phenol resin impregnated with a reinforcing spun fibre cloth of meta-aromatic polyamide and thermally pressurised. The phenol resin is also impregnated with epoxy resin.
Patent DE-4003369-A1 (DE)
Title: Tyre with directional thread - has asymmetrical groove for improved high speed performance
Inventor: USHIKUBO HISAO
IPC: B60C11/04
Filed: 1990-02-05
Abstract: A pneumatic tyre has directional aspects both as to the plan view of the tread pattern, and the cross section of transversal grooves. The tread is disposed at the crown of a toroidal casing and is formed of blocks partitioned by circumferential grooves, and by transversal grooves arranged in a regular herring-bone pattern. The apex of a herring-bone groove is typically placed at the circumferential centre line of the tread, and the direction of rotation is such that the apex meets the road ahead of the flanks of the herring-bone. The transversal grooves are of asymmetric cross-section such that the groove root radius at the groove edge which leads in the direction of rotation is smaller than the trailing groove root radius. The leading groove wall angle may be less than the trailing wall angle.
Patent DE-4006146-A1 (DE)
Title: Insect remover with retractable scraper for vehicular windscreen - is controlled remotely from within vehicle and augments normal wiping contact pressure for duration of scraping
Inventor: SCHMIDT NORBERT
IPC: B60S1/42
Filed: 1990-02-27
Abstract: The windscreen wiper arm (7) carries two pins (10) against which the insect scraper blade (4) is urged by a spring (8). When scraping is required the lever (11) of a motor (1) installed near the wiper pivot axis, and operated by the driver, pulls a cord (2) engaging a lever (3) to press the scraper (4) against the windscreen. Travel of the scraper (4) is adjustable by means of a set screw (9). Alternatively, a magnet is used to apply and retract the scraper. ADVANTAGE - Can perform conventional wiping and selective removal of insects with augmented contact pressure.
Patent DE-4008766-A1 (DE)
Title: Multi-pin plug connector for automobile electrics - has connector held in assembled position by spring locking clips at each end
Inventor: KLEIN GERHARD DIPL ING
IPC: H01R4/02
Filed: 1990-03-19
Abstract: The multi-pin plug connector for automobile electrics has the plug and socket halves (1,2) held together after initial assembly via spring locking clips (5,6) at opposite ends of the plug connector half (2) cooperating with 2 side wings (26,27) of the  socket half (1) extending parallel to the insertion direction. The locking clips (5,6) extend rearwards and are spring biased outwards, to press integral locking surfaces into engagement with corresponding retaining recesses (28,29) provided by the 2 side wings (26,27). Pref. the locking force provided by the spring locking clips (5,6) compresses a seal (24) between the 2 connector halves (1,2). ADVANTAGE - Prevents disengagement of connector due to vibration etc.
Patent DE-4008923-A1 (DE)
Title: Optical fibre coupling for communications network - has clamp plate separated from split metal ring at defined rupture point
Inventor: FINZEL LOTHAR DIPL ING
IPC: G02B6/36
Filed: 1990-03-16
Abstract: The coupling uses a symmetrical connector (10) receiving the optical fibres at opposite ends. The connector base part (16) has a guide (17) for each stripped optical fibre end and a cooperating cover (15) held together via a split metal ring (18).  A clamp plate (11) for the optical fibre outer sheathing (21) is separated from the cover (15) along a preset rupture line (14). Pref. the clamp plate (11) and the opposing base plate (16) are shaped to match the outer dia. of the optical fibre sheathing (21). ADVANTAGE - Secure retention of inserted optical fibre end.
Patent DE-4009686-A1 (DE)
Title: Discharge device for paste-filled bag - has heating element next to discharge opening
Inventor: THALMEIER WOLFGANG
IPC: B65D83/00
Filed: 1990-03-26
Abstract: The device is for use with a plastics bag containing a paste material, esp. hot melt adhesive. It uses a piston in a housing, to compress the bag, and to eject the material through a discharge aperture. The piston is formed as an ejection piston (5). The discharge opening is located in the bag (2) opposite to the piston. The housing base (cover9) next to the opening, is heated. The piston acts on the bag on the side of the filler opening. The ejection piston is connected to a driven piston (7) via a rigid piston rod (6). USE - Formation and filling of bag containing paste material.
Patent DE-4010546-A1 (DE)
Title: Vehicle brake pressure controller - has inlet side restriction prevent actuating velocity affecting valve change pressure
Inventor: HAYN HOLGER VON
IPC: B60T8/26
Filed: 1990-04-02
Abstract: A controller for an automotive vehicle has a pressure-reducing valve between hydraulic fluid inlet (2) and outlet (3). A valve closure member (9) is supported within a control piston (8) exposed to inlet pressure which slides the piston and moves the member away from a sealing seat. When the deceleration threshold of the vehicle is exceeded the piston movement is stopped. - A restriction (26) is located in a connection between the fluid source and an inlet chamber, the cross-section at the restriction increasing as the pressure build-up velocity rises. There may be two restrictions in parallel, one being shut off below a defined pressure build-up velocity. The control piston is pref. of duroplastic material and has a PTFE bushing where it is sealingly guided in a housing.
Patent DE-4013295-A1 (DE)
Title: Threaded spindle drive with safety cut=out - has plate spring packet operating cut=out switch via axial displacement spindle
Inventor: SEIDL JAROSLAV
IPC: B23Q5/40
Filed: 1990-04-26
Abstract: The spindle drive has a rotary nut (11) attached to the spindle (6), coupled to a piston rod (12), or a carriage etc., for linear reciprocation of the latter in response to the spindle rotation. A plate spring packet (10) between the spindle (6) and the drive housing, is used to operate a safety cut-out switch (17( for the spindle drive motor (0), in response to its axial movement. Pref. the switch (17) is mechanically, electrically, or electronically continuously adjustable. ADVANTAGES - Prevents damage to drive upon exceding permissible stroke.
Patent DE-4017317-A1 (DE)
Title: System for enhancing spectrometer resolution - shifts spectrum periodically relative to detector array
Inventor: WULF JUERGEN DIPL PHYS DR
IPC: G01J3/433
Filed: 1990-05-30
Abstract: A spectrum is produced dispersing optics on a detector with a row of detector elements. The spectrum is periodically displaced relative to the detector elements. Signals are generated corresp. to the displacement amounts and signal processing equipment is supplied with detector signals and displacement signals and provides a spectrum of high resolution from the dependency of the detector signals on the displacement signals. Displacement may be effected by periodically moving the detector row in its longitudinal direction, by periodically moving an inlet aperture transverse to or in the direction of the light beam axis in the detector row plane, or by periodically moving the dispersing optics. USE/ADVANTAGE - As polychromator for liquid chromatography.  Covers gaps between detector elements without making elements undesirably small.
Patent DE-4017745-A1 (DE)
Inventor: DIAMANTOGLOU MICHAEL DR
IPC: B01D71/22
Filed: 1990-06-01
Abstract: A dialysis membrane for haemodialysis in the form of flat films, tubular films or hollow fibres composed of polysaccharide ethers is characterised in that the polysaccharide ether has a structure given by the formula 
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 in which Cell is the backbone of the unmodified cellulose molecule or of the chitin molecule in each case without hydroxyl groups, s is 3 in the unmodified cellulose molecule and 2 in the chitin molecule and x corresponds to the degree of etherification, which is in the range from 0.08 to (s-0.4).
Patent DE-4017862-A1 (DE)
Title: Platform connection for scaffolding - comprises bridge component between planks and having sloping plate end pieces
Inventor: BAUMANN WOLFGANG
IPC: E04G1/15
Filed: 1990-06-02
Abstract: The platform connection is partic. for console-type scaffolding (1-4) suspended above the ground on the exterior of a building, and having a platform comprising planks. The platform connecting component (13) is formed as a bridge unit fitting over the facing end areas of two spaced apart scaffold units (11, 12). It comprises parallel adjacent wooden planks (15) forming a bridge plate (14). At the long ends of the plate are end pieces (16) which fit over the top sides of platform components, and which run in an inclined manner (18) downwards from the top of the bridge plate to the platform components. These end pieces are made of bent metal plate. USE - To join adjoining platform components of a console-type scaffolding units for suspension on the exterior of buildings.
Patent DE-4019123-A1 (DE)
Title: Intake device for forage harvesters - ensures reliable uniform feed of material
Inventor: NUSSER JOSEF
IPC: A01F29/10
Filed: 1990-06-15
Abstract: The intake device is for a forage harvester. It has driven rotating rollers which are arranged on tiltable rockers. The drive transmission between one tooth- or chain-wheel (7) arranged concentrically to the tilt axis (17) of the rocker (4) and one tooth- or chain-wheel (8) connected with an intake roller (2) is formed in such a way that the drive moment causes a pressure force in at least one intake roller (2, 3). USE/ADVANTAGE - The intake device is reliable and guides the material in uniformly without blockages, even if  the swath thickness varies considerably.