baber/WOPTO huggingface dataset:
Patent DE-3913365-A1 (DE)
Title: Foil covering for tooth stump - is for fixing crown and is made from blank in shape of circular sector
Inventor: KOERBER KERSTIN
IPC: A61C5/77
Filed: 1989-04-22
Abstract: The stump of a natural tooth is covered with a piece of metal foil to facilitate the fitting of a crown.  The foil is produced as a blank (1) in the form of a circular sector of radius (R) and with an included angle (alpha) between the straight sides (2). Notches (4) and (5) are cut in the straight sides (2) to enable the part adjoining the apex of the  sector to be folded over the top of the tooth stump and the remainder of the foil to be wrapped around the tooth stump so that the edges overlap. USE - Fitting crowns to teeth.
Patent DE-3913897-A1 (DE)
Title: Prodn. of thick-walled welded steel tubes - using two coils to heat edges up to welding temp. with first coil lying in welding direction
Inventor: GRUBER KURT DR
IPC: B23K13/02
Filed: 1989-04-27
Abstract: The production method uses two coils.  The two coils lie one behind the other in the welding direction.  The first coil carries out the heating of the entire slit tube to between 600 and 800 deg. C.  The second coil only heats the edges up to a temp. of 1400 deg. C. The first coil is operated with a medium frequency of 10,000 Hz and the second coil is operated with a high frequency of 100,000 to 300,000 Hz. ADVANTAGE - High and unpermitted current density at corners of edges is prevented. Risk of corner overheating is removed.
Patent DE-3922900-A1 (DE)
Title: Monitoring of electromagnetic actuator - using circuit coupled to microprocessor to provide input that can be compared with reference to identify fault
Inventor: KORTSCHAKOWSKI HELMUT
IPC: G01R31/72
Filed: 1989-07-12
Abstract: A monitoring system for use with electromagnetic actuators (2) has the drive amplifier (1) coupled to a microprocessors (15). Typically the amplifier provides H2V for actuation and -10V for the off slate. A test circuit (5-11)  provides an input to the microprocessor and connects with the electromagnets coil via an isolating diode (4). After switch off of the actuator the circuit provides a short duration pulse input to the processor that is a measure input to functioning of the unit. ADVANTAGE - Allows faults in electromagnetic actuators to be detected.
Patent DE-3924180-A1 (DE)
Title: Fluid collection tank - is fastened onto end of tube bundle of heat exchanger
Inventor: BOQUEL DANY
IPC: F28F9/02
Filed: 1989-07-21
Abstract: The tank is esp. for a heat exchanger esp. for vehicles.  It is fastened to one end of a bundle (7) of ribbed tubes (8). It is tubular (1), with an outer  circumferential edge (5). It has a flat wall section (4) with openings (6), forming a fluid connection between tank and tube bundle.  The openings are for sealed retention of the tube ends (12). USE/ADVANTAGE - More economical: standardised heat exchanger system for vehicles.
Patent DE-3928443-A1 (DE)
Title: Probe for electrohydraulic lithotriptor - has lamella-like spreading arms distributed about circumference of head
Inventor: WALZ VOLKER DIPL ING
IPC: A61B17/22
Filed: 1989-08-29
Abstract: Two electrodes, insulated against each other, extend from the open end face of the probe head. Spreadable elements surround this open end in beam fashion. The spreadable elements are in the form of lamella-like, flexible expanding arms (17). Their ends are distributed around and fixed to the circumference of the probe head (11). They extend axially in-front of the open end surface (12) of the head against their own elasticity. They are releasably coupled together. The coupling can be released by a hydraulic pressure wave produced by arcing between the electrodes (13,14). The arms then bend radially outwards under their own elasticity. ADVANTAGE - Protects body tissue in application channel while reducing range of application and effectiveness of probe only slightly.
Patent DE-3929197-A1 (DE)
Title: Rectifier circuit with high dynamics - prevents dynamics limitation by adding several rectifier branches
Inventor: MANGELS HANS-JOACHIM DIPL ING
IPC: H03D1/00
Filed: 1989-09-02
Abstract: The rectifier circuit prevents dynamics limitation by addition of two and/or more rectifier branches. In each branch amplifier an amplification over frequency can be prevented. The entire characteristic is composed of individual characteristics.  The circuit is pref. designed in several stages, and the rectifier branch input are mutually parallel. The outputs of each branch are coupled to a second summation point (32), whose output is linked to a first output separating amplifier (61). The first branch contains a series circuit input, with the circuit consisting of a fifth signal matching (55), an input voltage limiting stage (901), a first preamplifier (71), a first driver amplifier (81) and a first rectifier (41). ADVANTAGE - Facility for rectifying a.c. voltages with high input dynamics and/or wide frequency spectrum.
Patent DE-3931430-A1 (DE)
Title: Spindle drive with spindle nut - is used to convert rotary into linear movement, and has magnetic bearing enclosing spindle thread
Inventor: ENGEL JOACHIM DR ING
IPC: F16C39/06
Filed: 1989-09-21
Abstract: The spindle drive, for converting a spindle rotary (1) movement into a linear movement, has a spindle nit which is formed by a magnetic-bearing (3) enclosing the spindle thread (2), leaving a clearance-gap (17). Above or below the spindle (2) is a magnetic bearing (8) acting as a radial guide for the spindle (1). The spindle (1) is rotated by an electric motor (5) whose rotor (14) is connected to the spindle. USE/ADVANTAGE - The friction-free spindle drive incorporates magnetic bearings, dispensing with lubricating oil.
Patent DE-3940023-A1 (DE)
Title: Noise screen with solar power generators for e.g. motorway - has angled and laterally offset support ends on outer face of wall for aerodynamic stability
Inventor: ASCHE-MORGNER RUEDIGER DIPL IN
IPC: E01F8/00
Filed: 1989-12-04
Abstract: A right-angled cantilever arm (2) extends from near the top of a screening wall (1) and carries strips (3) to which solar panels (5) are secured by e.g. triangular brackets (4).  Each strip (3) is clamped (7) to a tubular support (6) enabling it to be set at the appropriate angle for maximum electric power production. The base of the panel is positioned level with the top of the wall to prevent lifting by wind. USE/ADVANTAGE - For e.g. motorways and railways.  Material cost is reduced and installation is easily cleaned and  protected against dirt, vibration and gusts.
Patent DE-4002635-A1 (DE)
Title: Brake circuit with anti-lock control for motor vehicle - has first restrictor in branch line connecting master cylinder to normally open valve and to pressure side of pump
Inventor: HAHN GERHARD
IPC: B60T11/18
Filed: 1990-01-30
Abstract: The circuit incorporates a first restrictor (RI) installed in a first common hydraulic line branch (12) and which connects the master cylinder (HZ) to a normally-open valve (NO) and to the pressure side of the pump (P).  A second restrictor (R1) is installed in a second branch (18) connecting the normally open valve and a normally closed valve (NC) to the brake  cylinder (BZ). The first restrictor is located at a distance from the master cylinder which is half the length of the first hydrualic line branch (12).  The second restrictor is built directly into the wheel brake (FL). ADVANTAGE - Pressure pulses in the circuit are reduced by the restrictors.
Patent DE-4004665-A1 (DE)
Title: Optical fibre end-face grinding or polishing - using moving guide table spaced from polishing head
Inventor: FRITSCHER RAIMUND DIPL ING
IPC: G02B6/25
Filed: 1990-02-15
Abstract: In the end face grinding or polishing of an optical fibre end section (1) esp. held in a plug pin (7), the fibre end section (1) is fixed at a fixed angle, esp at right angles to the flat surface of a grinding medium (4), in a holder (3) mounted on a polishing head (2). A guide table (5), on which the polishing head (2) is fixed, is moved such that the grinding direction continuously varies at the fibre end face (6) and polishing. Head (2) is moved with the fibre end section on the grinding medium (4), while the guide table (5) moves alongside the grinding medium (4) on a guide plane (8). In appts. for carrying out the process, the polishing head (2) is rigidly connected to but spaced from the guide table (5). Pref. the guide plane (8) and the flat surface of the grinding medium (4) are flushed with a polishing liq. A variable pressure can be applied to the holder (3) by means of a spring or weight.
Patent DE-4009632-A1 (DE)
Title: Support for long term securing mining areas
Inventor: KETTERER KLAUS
IPC: E21D15/48
Filed: 1990-03-26
Abstract: For long term securing of mining areas in underground mining support arrangements are provided.  These are constituted by individual cushions or tubular members, which define a forced centering unit, so that they also can be effectively tensioned between the hanging wall and foot wall, where a particular inclination is present of where a collapse can occur.  The forced centering units thereby uniformly positions the cushions or tubular members and therewith provides a constant support of thereof. The support arrangement in particular embodiments of the cushions have suitable openings (e.g. openings in the centre or at the side edges) where tension members in the form of hydraulic props are located, which props, if necessary, can be removed again easily if the openings are located at the side of the cushions or tubular members. @(1pp Dwg.No.1/1)@
Patent DE-4009848-A1 (DE)
Inventor: BODENMUELLER HEINZ
IPC: G01N33/53
Filed: 1990-03-27
Abstract: To detect proteins containing phosphorylated tyrosine, the sample of a body fluid is incubated with at least two receptors R<1> and R<2>, there being generation of a change in a signal owing to binding of at least the receptors R<1> and R<2> to the substance to be detected in the sample solution, and where in each case one of the two receptors contains an antibody, or its derivative, which is able to bind specifically to the protein to be detected, and the other receptor contains an antibody, or its derivative, able to bind specifically to phosphorylated tyrosine, and the change in the signal in the sample caused by the binding is determined.
Patent DE-4011853-A1 (DE)
Title: Reducing pollution in water contg. phytoplankton - esp. algae which have removed dissolved nutrients from water, by feeding it to zooplankton
Inventor: THEISS JOACHIM DR
IPC: C02F3/32
Filed: 1990-04-12
Abstract: Redn. of pollution in water comprises exposing the water, which contains phytoplankton (PP), to zooplankton (ZP) in at least a first compartment.  Any zooplankton above a pre-determined concn. are removed from the compartment.  Phytoplankton are added to (and multiply in) the water so as to reduce its content of nutrient. This stage may be carried out in the first compartment or in a separate compartment adjacent to it. USE/ADVANTAGE - The method is used to treat natural or waste waters. ZP are natural predators of phytoplankton (which convert phosphate, fertiliser, etc. in the water into biomass) so provide a 'biological filter' to eliminate PP. The ZP generated can be used as animal fodder, and the sediment formed in the compartment can also be used after composting.
Patent DE-4013076-A1 (DE)
Title: Mould for duplicate model of patient's jaw and teeth - has base plate with detachable housing and lid
Inventor: GRUENEWALD FRIEDHELM
IPC: A61C13/16
Filed: 1990-04-25
Abstract: A mould, for producing a duplicate model of a patient's jaw and teeth, consists of a base plate (2) with a detachably connected housing (3). The base plate (2) has three upwardly projecting pins (14) and each pin (14) is fitted with a sleeve (15). These pins (14) and sleeves (15) locate the model in a precise angular position relative to the base plate (2). A bush (5) is fitted in the wall of the housing (3) at a distance above the base plate (2) and with its axis parallel to the upper surface of the base plate. The bush serves as a means for filling the mould with silicone and is sealed with a piston (6). The mould is covered with a lid (4) and there is a radial gap (X) between lid and housing which is filled with silicone. USE - Dentistry.
Patent DE-4014006-A1 (DE)
Title: Cyclic ketone(s) containing imidazole and triazole groups - for inhibiting biosynthesis of oestrogen
Inventor: STREHLKE PETER DR
IPC: C07D249/08
Filed: 1990-04-27
Abstract: Compounds of formula (I) and their pharmaceutically acceptable acid addition salts are new. A is an N atom or a CH group and W is a group of formula (II), where X is -O-, -S- or -CH=CH; Y is -CH2-, -O- or -S- and Z is -(CH2)n-, where n is 1, 2 or 3. Either R3 is H and R1 and R2 and H, 1-10C alkyl or 3-7C cycloalkyl, or R2 has the same meanings but R1 and R3 form a -(CH2)m- group, where m is 2,3 or 4. the preferred daily dose is 0.001-1 mg per kg. USE/ADVANTAGE - In the treatment of oestrogen-induced or stimulated tumours, e.g breast cancer or prostate hyperplasia. (I) can also be used to treat male infertility resulting from high oestrogen levels, and as an anti-fertility agent for women. They can also prevent imminent heart infarction in men with high oestrogen counts.  (I) is both more powerful and more selective than known compounds
Patent DE-4014730-A1 (DE)
Title: Electrical miniature switch - has housing block for strip contact element fixed in base
Inventor: SHIMAOKA MANABU
IPC: H01H13/10
Filed: 1990-05-08
Abstract: The miniaturised switch has a box shaped housing (1) of insulating material is open at the bottom to receive an insert (2). The insert is of insulating material and has an embedded contact element (20) that has connecting terminals at one end (5a-5f). The connecting has a side section (21) with a number of parallel fixed contact pairs (2a,26b). The switch actuator (11) moves a block (12) to cause moving contacts (14) to bridge the fixed contacts.
Patent DE-4015318-A1 (DE)
Title: IC engine idle control esp. for throttle flap - contains pneumatic control motor with EM control valve
Inventor: GOEHRING FRANK
IPC: F02M3/07
Filed: 1990-05-12
Abstract: A control element for an i.c. engine idle control contains a pneumatic control motor whose control element has an e.m. control valve in a feed line to a first operating chamber connected to a core movable in a magnetic coil.  The chamber is connected to atmosphere and reduced press. for the no coil current and coil current states respectively. A second operating chamber (25) on the side of the control motor (22) remote from the control element (23) has a suction tube connection (35). A control spring (43) stronger than a restoring spring (39) and connected to the control motor housing (44) and control element is tensioned in the direction of the first operating chamber (24). ADVANTAGE - More compact.
Patent DE-4018901-A1 (DE)
Title: Connecting element for cylinder tubes - has elastic sleeve with resilient disc with inwardly protruding flaps
Inventor: DEMEL OTTO
IPC: F16L21/02
Filed: 1990-06-13
Abstract: The connecting element for cylindrical bodies such as tubes comprises a sleeve (1) of elastic material which has two axial socket openings (7,8) for the bodies being connected.  In the sleeve at least one resilient disc (3,4;5,6) is embedded in the area of the body being connected and has inwardly protruding flaps (13 to 16) which are bent out of the plane of the disc. The inwardly aligned edges of the flaps form a smaller diameter than the body being connected.  Several such discs can be provided for each one body. USE/ADVANTAGE - The connecting element for tubes can be made by injecting round the resilient discs previously inserted in a mould.
Patent DE-4020067-A1 (DE)
Inventor: HAEUSER HERBERT
IPC: F16B41/00
Filed: 1990-06-23
Abstract: An anti-theft device for motor vehicle wheels comprises a casing (10) covering the polygonal head (4) of a wheel nut or bolt (1) in which there is rotatably arranged a lock cylinder (21) the tumblers (23) of which project beyond the surface of the lock cylinder (21) and enter annular grooves (6) on the internal wall of the polygonal head in the anti-theft position. The tumblers (23) can be adjusted into a position retracted from the annular grooves by insertion of the key (30), the key (30) having a projection (33) which lies in the plane of the key channel (28) and passes behind an annular shoulder (19) at the end face of the casing (10) when the key is inserted and turned from the basic position, this casing (10) trapping the key (30) against withdrawal and forming a transverse slot (20) for the passage of the projection (33). At least one projecting catch (25) is shaped on the lock cylinder (21) and passes behind the annular shoulder (19) covering an annular groove (17) of the casing (10) into which the projection (33) of the key (30) projects. <IMAGE>
Patent DE-4025052-A1 (DE)
Title: Sampling flue gas stream, esp. for sulphur di:oxide determn. - involves ammonia removal using nitrogen oxide(s) removing catalyst
Inventor: COERLIN DETLEV DIPL ING
IPC: B01D53/86
Filed: 1990-08-07
Abstract: In flue gas sampling from a flue gas stream contg. NH3 and NO, in which the gas sample is filtered and then supplied to a measuring unit (35) esp. for SO2 measurements, the filtered gas sample is fed through a de-Nox catalyst material (19) on which the NH3 is converted by the NO into N2. Equipment for carrying out the process comprises a filter (9) connected to the interior of a de-Nox catalyst chamber (13), the outlet of which is connected to the measuring unit (35). Pref. the gas sample is maintained at above 320 deg C during the conversion and is then fed through an unheated gas line (32) to the measuring unit (35). The catalyst chamber (13) includes a heater (21) and contains a ceramic granulate as the de-Nox catalyst material (19). USE/ADVANTAGE - Useful for determining the SO2 content of flue gases from combustion units in the cement industry. It provides a NH3-free gas sample in a simple manner, thus avoiding errors in the SO2 content measurements.
Patent DE-4033933-A1 (DE)
Title: Automatic position-dependent switch for internal vibrator motor - is closed for three-phase AC supply to motor when vibrator is elevated into working attitude
Inventor: STEFFEN MICHAEL DIPL ING
IPC: E04G21/08
Filed: 1990-10-25
Abstract: The circuit supplying current to the motor is completed by a power switch (5) when the vibrator with its handling tube (2) is raised into an upright attitude. The switch (5) opens again when the vibrator is laid down. The functions of switching and attitude detection are sepd. and the switch is operated by an electronic control signal to its excitation coil (7). The attitude sensor is a partially oil-filled chamber with an infrared optical barrier. USE/ADVANTAGE - For solidifying concrete. Reliable on-and-off switching is guaranteed without risk of contamination of the environment.
Patent DE-4038251-A1 (DE)
Title: Max probability receiver e.g. for mobile communications
Inventor: BAIER ALFRED DR
IPC: H03M13/00
Filed: 1990-11-30
Abstract: The receiver uses a signal processor (2, 21) with a sample-and-hold circuit (21), coupled to an A/D converter (22) and an equaliser (3) having a digital processing circuit (31...35) including a register (331, 332, 333) holding the condition transitions and a memory path register (334). Pref. the equaliser (3) has a control and processing logic (35) for estimating binary values using a viterbs algorithm.
Patent DE-4039502-A1 (DE)
Title: Wall housing for communications exchange - has earth plate coupled to earth potential conductor paths of printed circuit board and attached modules
Inventor: GEPPERT FRITZ
IPC: H04Q1/10
Filed: 1990-12-11
Abstract: The wall housing has a wall-mounted base (1) with an attached earth plate (2), which is mechanically and electrically coupled to the current supply device (3). The earth plate (2) has contact projections (4) for electrically contacting the earth potential conductor paths of the printed circuit board (5) supported by the earth plate (2) and contact tongues (6) for contacting the earth potential conductor paths of the circuit modules (7) fitted to the circuit board (5). ADVANTAGE - Provides Faraday cage for HF communications appts.
Patent DE-4105540-A1 (DE)
Title: Sharpening system for machine for removing flesh from skins - has sharpening tool to automatically engage rotating blades, during time when skin is placed in or removed from machine
Inventor: TRUETSCHEL WILLI
IPC: C14B17/14
Filed: 1991-02-22
Abstract: Rotating knives are sharpened over the full width of the drum during the time while the skin is being introduced to or removed from the machine, or is being turned. The machine has a cutting drum and support surface, between which is a working gap which can be opened or closed by a control element. A blade sharpening device is provided, and a positioning system moves the drum and the sharpening device relative to each other. This positioning system is also activated by the control element so that the sharpening device moves into the sharpening position as the gap between drum and support surface is opened, and out of the sharpening position as this gap is closed. The shapening device has a bed with a sharpening tool which extends over the full width of the drum. The control element may be operated by a control programme. The sharpening bed can be moved axially to and fro relative to the drum by a short stroke reciprocating drive. USE/ADVANTAGE - For stripping flesh from skins and hides. The blades are automatically maintained in a sharp condition without reducing the throughput of the machine, and the quality of the prod and the overall productivity of the machine are therefore improved.
Patent DE-4109356-A1 (DE)
Title: Track guiding of running wheel of railed vehicle - using control information picked-up from adjusting drives for running wheels suspended to be separately controllable
Inventor: SEBASTIAN LOTHAR DIPL ING
IPC: B61F5/38
Filed: 1991-03-22
Abstract: The control data result in the swivelling of the facing pair of running wheels (4) in the same direction of rotation about the vertical axis. The running wheels are suspended so that they are individually controllable and are connected to respective adjusting drives (7) for track guidance. Self-generated control information taken from the pairs of running wheels are supplied to the adjusting drives as well as a control line (8) reacting on these adjusting drives. The pairs of running wheels are controlled accordingly. The control line for the swivelling of the running wheels of a pair negotiating travel around a bend at different radii, takes account of the outer and inner lying track guide rails (1). Electronic data processing equipment can be integrated along the control paths for calculating the pivotal movement required, taking into account the geographical conditions. ADVANTAGE - Reduced wear on rails and flanges of running wheels since mechanical force against flange is not used to deflect wheel as required on curves.
Patent DE-4109523-A1 (DE)
Title: Pre-sensitised lithographic pressure plates - have photopolymerisable light-sensitive layer contg. thioxanthone photopolymerisation initiator of specific solubility and gum layer
Inventor: HIGASHI TATSUJI
IPC: G03F7/00
Filed: 1991-03-22
Abstract: Pre-sensitised plates for lithographic pressure plates have a substrate with a polymerisable light sensitive resin layer and a silicon gum layer respectively, where the light sensitive layer contains a thioxanthone photopolymerisation initiator of solubility not below 5 g in 100 ml trimethylolpropane triacrylate at 25 deg.C. The plates pref. have a priming layer. The light sensitive layer comprises a) a monomer or oligomer with at least one photopolymerisable olefinic double bond; b) a polymer cpd. soluble in an organic solvent, which is solid at room temp. and has film-forming properties, and c) a photopolymerisation initiator contg. the thioxanthone cpd. and at least one opt.  initiator chosen from dialkylaminoarylcarbonyl cpds., xanthones, acridones, benzanthrones, benzophenones and anthraquinones. USE/ADVANTAGE - Useful for prepn. of lithographic pressure plates, requiring no wetting with water.