baber/WOPTO huggingface dataset:
Patent DE-3900906-A1 (DE)
Title: Universal car seat for small and large vehicle occupants, in particular passengers
Inventor: AMBROS RICHARD
IPC: B60N2/28
Filed: 1989-01-13
Abstract: A universal car se2at which is suitable both for accommodating babies with and without a baby bag, and for infants to lie on and for children and adults to sit on. A seat shell 392, which is mounted such that it can be pivoted up about an upper transverse pivot of a rear support bar and into which a seat cushion for an adult is inserted and onto the lower side of which a padded child's backrest can be placed, serves here in the swung-up condition as a backrest for a child, the child being accommodated with his back in the direction of travel on a folding seat which consists of a seat plate 427, which likewise is mounted pivotably about the upper transverse pivot of the rear support bar and has a child's seat cushion fastened thereon and which on its underside also has a front support bar which is mounted pivotably on the seat plate with its upper transverse pivot 403, whereas its lower transverse pivot is inserted into catches 431 of a displaceably mounted seat trough 400 in which there is also mounted the rear support bar. <IMAGE>
Patent DE-3903588-A1 (DE)
Inventor: HUFF HELMUT DR
IPC: B23K20/08
Filed: 1989-02-07
Abstract: A method for producing a reliable connection between a wheel disc 1 of a turbine, particularly of a compressor rotor, of titanium or a titanium alloy and a wheel disc 2 of a nickel alloy, comprises separating rigidly interconnected double-ring members from a double tube coaxially jointed by blast welding and of which one tube consists of titanium or a titanium alloy while the other tube is produced from nickel or a nickel alloy. One ring component on the titanium side is welded to the wheel disc 1 which is of like material while the other ring component on the nickel alloy side is welded to the other wheel disc 2 which is of a corresponding material. <IMAGE>
Patent DE-3904190-A1 (DE)
Title: Afocal pancratic system
Inventor: MUELLER LOTHAR DIPL ING
IPC: G02B21/02
Filed: 1989-02-13
Abstract: The invention comprises an afocal 10-lens varifocal system (variable focus), which can be constructed as variable-focus lens having three or four elements (components) and which uses calcium fluoride (fluor-spar) in the respectively outer lenses. The invention shows a varifocal system in particular for stereoscopic microscopes of the highest imaging performance.
Patent DE-3907828-A1 (DE)
Title: Process for coating medical and dental instruments
Inventor: GOERNER GOETZ
IPC: C25D3/56
Filed: 1989-03-10
Abstract: Published without abstract.
Patent DE-3908957-A1 (DE)
Title: Method and device for wrapping piece goods with plastic foil
Inventor: UTHOFF WERNER
IPC: B65B9/13
Filed: 1989-03-18
Abstract: The invention relates to a method and to a device for wrapping piece goods (in particular stacked piece goods such as, for example, and in particular, stacks of piece goods which have been formed by means of a palletising device and consist of several layers of piece goods arranged one above the other) with plastic foil, in particular stretch foil, in particular a foil hood, with a foil supply, a foil tear-off means and foil delivery means arranged downstream of the foil supply, and with a spreading device which has holding and spreading means for holding and spreading the foil. The holding and spreading means are in each case arranged at a lateral spacing from a corner of the foil or of the piece goods or stack of piece goods (Fig.8). <IMAGE>
Patent DE-3910712-A1 (DE)
Inventor: SCHNABEL JUERGEN DIPL ING
IPC: H03K3/354
Filed: 1989-04-03
Abstract: The object is to achieve a fast temperature- and parameter-constant controllable oscillator in CMOS technology for low to very high frequencies, for example considerably above 100 MHz. 
<??>According to the invention, the oscillator exhibits a two-stage differential amplifier (N5-N12) and two controllable current sources (I1, I2) which are connected via a frequency-determining capacitor (C). The two current sources (I1, I2) are connected via a first and, respectively, second ohmic resistor (R1, R2) to the inputs (IN1, IN2) of the differential amplifier (N5-N12), in which arrangement, on the one hand, the capacitor (C) is charged up or discharged via the first resistor (R1) to a first switching state, or via the second resistor (R2) to a second switching state, by means of a first switching unit (N1, N2, P1-P4) connected to the inputs of the differential amplifier (N5-N12) and by means of a second switching unit (N3, N4) connected to the outputs of the differential amplifier (N5-N12), due to the voltage drop across the first and, respectively, second resistor (R1, R2). 
<IMAGE>
Patent DE-3920303-A1 (DE)
Title: Centrifuged cake detachment and transfer into worm extractor - via fixed diffuse round mobile end of feeder tube
Inventor: TITUS HANS-JOACHIM DIPL ING
IPC: B04B11/08
Filed: 1989-06-21
Abstract: The cake (K) building on the wall of a centrifugal separator, esp. in a pneumatic conveyor system is taken into the stationary section (40) of an extractor tube tangentially connected to a central feeder tube (44). A diffuser section (46) loosely engages a mobile section (32) of the extractor tubes.  The annular gap round the diffuser is entered by transport gas with an injector action, and which helps to dry the cake during entry into the feeder tube. The mobile section (32) is coupled by a pivot arm (64) to a rotatable shaft (28) mounted on the centrifuge housing. Arcuate scraper blades (50,52) above and below a rotating scraper nozzle (36) detach collected cake in plough-share manner for entrainment into the  extractor tube. ADVANTAGE - Cake can be completely removed before prod. change.  A simple nozzle section can be combined with different scraper blades dependent on material centrifuged.
Patent DE-3921168-A1 (DE)
Title: Sepg. residual contents from metal containers by absorbent - particles to be sepd. by wind-sifter after shredding metal for scrap
Inventor: LAND ADO
IPC: B03B9/06
Filed: 1989-06-28
Abstract: Before metal cans or drums, which have been used for bulk transport of materials, are shredded for re-use as scrap, residues of transported material are removed by a charge of adsorbent material, such as granulated pumice, vermiculite or active carbon. After the shredding process a wind-sifter removes from the scrap metal particles both the absorbent material and the residues now associated with it. USE - Esp. for residues capable of environmental pollution or poisoning water supplies.
Patent DE-3921174-A1 (DE)
Title: Cross-linked thermoplastic pipeline system - welding of individual components occurs while the plastic is still thermoplastic after which moisture initiates the cross-linking
Inventor: SCHULTE BERNHARD
IPC: B29C65/00
Filed: 1989-06-28
Abstract: Building of a pipeline system consisting of pipes, joints and bends of various shapes and the prodn. of connections between the individual components is improved. A greater structural integrity is achieved for the complete system.  Individual components are mfd. by conventional means in a cross-linkable plastic. The crosslinking occurs only after installation of the pipe system. USE/ADVANTAGE - For prodn. of a pipeline system for carrying fluids and gases. The system is durable and connections between the individual components are easily achieved by welding. The pipeline system has a universal use at a justifiable price.
Patent DE-3922363-A1 (DE)
Inventor: HEITHORN MONIKA
IPC: B05D7/16
Filed: 1989-07-07
Abstract: PCT No. PCT/EP90/00994 Sec. 371 Date Dec. 31, 1991 Sec. 102(e) Date Dec. 31, 1991 PCT Filed Jun. 22, 1990 PCT Pub. No. WO91/00895 PCT Pub. Date Jan. 24, 1991.A process for the production of a multi-layer paint coating in which base paints are employed which contain 5 to 20% by weight of crosslinked polymer microparticles, 2 to 15% by weight of a cellulose ester and 5 to 20% by weight of an epoxidized fatty acid ester, the weight percentages relating to the total content of nonvolatile constituents, excluding pigments and inorganic fillers, and the cellulose ester being so selected that a solution of 15 parts by weight of the cellulose ester in 85 parts by weight of a 9:1 mixture of acetone and ethanol at 23 DEG  C. has a viscosity of 200 to 600 mPa.s.
Patent DE-3924343-A1 (DE)
Title: Demonstration of Pythagoras theorem - by transparent container in shape of right angled triangle with square on each side
Inventor: JARRAHI BENJAMIN
IPC: G09B23/04
Filed: 1989-07-22
Abstract: The appts. for demonstrating the theorem of Pythagoras is made from two flat panels of glass or transparent plastics.  The two panels are of identical shape and size and each panel consists of a central right angled triangle (1) with a square (2, 3, 4) formed on each side. The panels are placed side by side at a uniform distance apart and a seal formed around the edges. The square on the hypotenuse is filled with a coloured liq. Small internal holes are provided to enable the liquid to flow from the square on the hypotenuse into the squares on the other two sides which are completely filled, thus demonstrating the truth of the theorem of Pythagoras. USE - Instruction in geometry.
Patent DE-3926642-A1 (DE)
Title: Electrodialysis appts. for recovering acid esp. organic acid from salt - with stack of 4 compartment cells separated by ion exchange membranes, sharing outer compartments and electrodes
Inventor: REHMANN DIRK
IPC: B01D61/44
Filed: 1989-08-11
Abstract: Appts. for recovering an acid from its salt by electrodialysis has electrodialysis cells to which a p.d. can be applied, each with 4 adjacent compartments sepd. by cation exchange membranes and anion exchange membranes. The novel features are that the cells are arranged in a stack and connected in series; and adjacent cells are arranged inversely, so that they share one outer compartment (I) or (IV) and one electrode (+ or -). The outer compartments (I, IV) are sepd. from the inner compartments (II, III) by cation exchange membranes (K), whilst the 2 inner compartments are sepd.  by an anion exchange membrane (A); or the outer compartment (I) on the anode side is sepd. from the adjacent inner compartment (II) by a cation exchange membrane and the other compartments (II, III, IV) are sepd. by anion exchange membranes. The electrodes consist of platinised Ti. An acid is supplied to (I), an aq. alkali soln. to (IV), an organic salt to (III) and water to (II), whilst the required conc. acid is discharged from (II) and residual prods. from (III). USE/ADVANTAGE - The appts. is esp. useful for recovering organic acids, e.g. citric, lactic, acetic, formic, butyric, succinic acid etc., from their salts without adding protons from an inorganic acid.
Patent DE-3927297-A1 (DE)
Title: Para-glider made of flexible material - has internal compartments inflated with gas under pressure before use
Inventor: GEUTEBRUECK THOMAS
IPC: B64D17/02
Filed: 1989-08-18
Abstract: A para-glider is made from flexible material which is usually inflated to form an aerodynamic profile by the ram pressure of the air which flows into the internal compartments into which the paraglider is divided. The invention proposes a para-glider in which the internal compartments are sealed and are inflated with a gas under pressure before use. This proposal ensures that the correct aerodynamic form is maintained under all operational conditions and reduces the risks for the pilot. The internal compartments may be formed by flexible hoses. USE - Para-gliders.
Patent DE-3930253-A1 (DE)
Title: Freezing and displaying flow shapes e.g. for gas bubble investigation - using liquid suddenly converted to quasi-solid state by pressure increase and held in that state by temp. reduction
Inventor: POHL MARLENE
IPC: F15D1/00
Filed: 1989-09-11
Abstract: High-speed freezing and visually displaying of flow shapes resulting from the interaction of liquids and the systems carrying them involves using a liquid which changes suddenly into a quasi-solid form under press. The liquid is brought into the quasi-solid state by applying press. The temp. is reduced to preserve the quasi-solid state when the press. is removed. The guide system can be fully or partially removed for observation. USE/ADVANTAGE - E.g. for investigating bubble formation, distribution, ect. in pipes and valves operated at very high pressure. Expensive real systems can be replaced by special removable parts.
Patent DE-3931540-A1 (DE)
Title: Optical polarisation analyser - separates input light into measurement beams which are further divided by polarisation beam dividers before intensity is measured
Inventor: BOSSELMANN THOMAS DR
IPC: G01R33/032
Filed: 1989-09-21
Abstract: The analyser separates a transmitted light beam (10) into three or more measurement beams (10a, 10b, 10c), each of which is divided into two mutually perpendicularly polarised beams (11a, 12a, etc.) by a polarisation beam divider (26a-26c). At least one of the polarisation beam dividers has a quarter-wavelength plate (25c) placed in front of it. Each polarised partial beam is fed to a light receiver (27) which measures its intensity. USE/ADVANTAGE - Enables fully optical polarisation analysis without use of mechanically moving parts and has partic. simple means of determining state of polarisation.
Patent DE-3934375-A1 (DE)
Title: Greenhouse roof ventilation system - allows part of each roof half to be opened to let in air
Inventor: SAAT HENDRIKUS GERADUS
IPC: A01G9/24
Filed: 1989-10-14
Abstract: The glasshouse or greenhouse has at least two spaced rows of supports. One half of the roof extending the whole length of the house can be raised while the other half is fixed. At least one part (24) of the one half of the roof (24,25) that can be tilted up is fixed in place, and at least a part (25) of the other half of the roof (25,24) that is fixed in place can be tilted up for ventilating the house (10). USE/ADVANTAGE - The ventilation of the greenhouse is improved.
Patent DE-3940107-A1 (DE)
Inventor: BAUER REINHOLD DIPL ING
IPC: E21B33/124
Filed: 1989-12-05
Abstract: The apparatus has at least two pumps (9, 10) which are arranged above one another in the well filter (21), interconnected and can be shut off from one another by an intermediate piece (12) with armature (11), and which in each case are accommodated in a housing consisting of a closed extension piece (1, 2; 26, 6) and a perforated suction piece (3, 4), the suction pieces (3, 4) being sealed in relation to the well filter (21) and connected to injection pipes (13, 25). An extension piece (1, 2) is surrounded by a long sleeve (28) which is fastened to it and can be pressed against the well filter (21) and which seals the well filter (21) on the inside. During operation of the lower pump (10) and with the upper pump (9) at a standstill, compressed air, aggressive or inert gas together with water is injected into a section of the filter gravel pack. Subsequently, with switching in of the upper pump (9), a rinsing and desanding phase takes place. <IMAGE>
Patent DE-3942981-A1 (DE)
Title: High pressure water pump aggregate - uses central plate to form membrane stroke boundary wall
Inventor: EICKMANN KARL
IPC: F04B43/073
Filed: 1989-12-27
Abstract: High pressure aggregate having an inner and an outer chamber between which fluid is periodically moved in an axial direction, in which the inlet and outlet valves of the inner chamber are connected, and the outer chamber is joined to a reciprocating piston in a cylinder. A central plate (27) forms at each of its ends a membrane stroke (1) boundary wall (42, 43). USE/ADVANTAGE - Aggregate which can operate as a water pump at pressures around 4000 kg/cm squared which allows the use of exchangeable inlet and/or outlet valves.
Patent DE-4001022-A1 (DE)
Title: New di:fluoro-benzonitrile cpds. for use in liq. crystal medium - having large dielectric anisotropy and low viscosity
Inventor: REIFFENRATH VOLKER
IPC: C09K19/30
Filed: 1990-01-16
Abstract: New difluorobenzonitriles are of formula (I). Y = 1-12C alk(en)yl, oxaalkyl or alkenyloxy; Q = a -Cyc-Cyc-CH2CH2-Phe-, -Cyc-Phe-CH2CH2-Phe-, -Phe-Phe-CH2CH2-Phe-, -Cyc-Cyc-Phe-CH2CH2-, -Cyc-Phe-Phe-CH2CH2-, -Phe-Phe-CH2CH2-, Phe-CH2CH2OPhe, Cyc-CH2CH2-Phe-, -Cyc-Phe-, -Phe-Phe- or -Phe- gp.; (Cyc = trans-1,4-cyclohexylene; Phe = 1,4-phenylene). USE/ADVANTAGE - (I) are claimed for use in liq.  crystal (LC) media, which are claimed for use as dielectrics in electro-optical displays. They are esp. useful in twisted cells, guest-host interaction, deformation aligned phase or dynamic scattering effect displays. (I) are stable, liq. crystalline or mesogenic cpds. with relatively low viscosity, very high dielectric anisotropy and good low temp. properties. They form stable LC media with wide nematic mesophase range and relatively low viscosity.
Patent DE-4001341-A1 (DE)
Title: Viscosity measurement of fluids over wide shear rate range - uses viscometer with upper wide bore capillary and pressure connectors and lower narrow bore capillary
Inventor: SPINDLER ERNST DIPL PHYS DR
IPC: G01N11/08
Filed: 1990-01-18
Abstract: Measurement of fluid viscosity over a wide range of shear rates is achieved by a capillary viscometer, the upper capillary tube of which has a broad tubular section and the lower tube has a narrow section. Two different shear rates and pressure sections and using established formula the fluid viscosity can be determined relative to the recorded shear rates. USE/ADVANTAGE - The appts. is used to measure fluid viscosity over a wide range of shear rates and used a single piece of equipment and a standardised method.
Patent DE-4003328-A1 (DE)
Title: Hydraulic brake installation - has pressure difference limiting valve connected between auxiliary pressure source
Inventor: REINARTZ HANS-D
IPC: B60T8/34
Filed: 1990-02-05
Abstract: The hydraulic brake installation is for a vehicle. It has at least one wheel brake and one auxiliary pressure source (2) with an inlet valve installed between the auxiliary pressure source and the wheel brake. The wheel brake is connected by an outlet valve to the retain flow pipe and a pressure difference limiting valve (1) is installed in the pipe which connects the auxiliary pressure source to the inlet valve. The body of the pressure difference limiting valve (1) has one side subjected to the pressure of the auxiliary pressure source (2). The other side of this valve (1) has a pressure chamber (3) which forms a separate hydraulic connection between the master cylinder main pressure pipe (5) and the inlet valves (6) of the wheel brakes (VR, VL, HR, HL.). USE - Hydraulic brakes.
Patent DE-4004721-A1 (DE)
Title: Prodn. of textured synthetic yarn - using heater and aerodynamic entanglement for pre-shrink treatment
Inventor: KRENZER EBERHARD
IPC: D02G1/16
Filed: 1990-02-15
Abstract: Process for the prodn of texturised synthetic yarn, which is thermodynamically softened and brought through an air pressure jet to entangle the fibres. The fully  drawn yarn is brought from the reel by several turns around a revolving heater, at over 80 deg C. At a reduced tension, the yarn passes into the aerodynamic jet to cool below 40 deg C in an unheated air passage, which crimps the yarn with relaxation bringing it to the point of residual shrinkage. The yarn is then wound at normal tension. The appts is also claimed. ADVANTAGE - The yarn can be wound normally. The point of residual shrinkage is reduced while retaining the texturised qualities desired, for handle or technical purposes.
Patent DE-4007052-A1 (DE)
Title: End component for ironing board feet - with support face in shape of curved zone section
Inventor: KLAAS MANFRED
IPC: D06F81/00
Filed: 1990-03-07
Abstract: An end component is for the feet of an ironing board which is adjustable in height and incorporates folding legs. The component features a support face with the shape of curved zone section and rests on the floor via at least one line located in the section. The line lying on the floor runs in parallel to a straight line which intersects the foot axis at an angle that depends on the inclination angle of the foot. ADVANTAGE - The component can rest on the floor via at least one line even when it consists of rigid plastics.
Patent DE-4010217-A1 (DE)
Title: Impulse percussion tool - comprises hollow cylinder and spring-loaded piston activated by spark discharge in dielectric solution
Inventor: BOCIAN MANFRED
IPC: B25D9/06
Filed: 1990-03-27
Abstract: The impulse percussion tool creates a momentary high pressure through spark discharge in a dielectric solution.  This is contained in a hollow cylinder above a spring loaded piston. The dielectric fluid may be transformer oil or distilled water. There are electrodes in the cylinder to allow the spark discharge to take place. The spring (DF) urges the piston (K) upwards, compressing the fluid (HZ) above the piston ready for the next spark discharge and power stroke. USE/ADVANTAGE - Spark discharge impulse system. Can be used with various percussion tools in mining or road building or in die stamping and similar operations.
Patent DE-4011728-A1 (DE)
Title: Modular message and registration centre - has chassis with PCB(s) and sockets wired like bus system
Inventor: HEILAND BERND DIPL ING DR
IPC: H05K7/14
Filed: 1990-04-11
Abstract: A report centre (1) with a modular construction comprises a chassis (2), at least one circuit board (3) as a base plate with bus wired plug connectors (31) for receiving different function component groups (4), an upper container part (5) with caption stores (6), and a cover plate (7). USE/ADVANTAGE - Can be adapted for use in wide variety of applications, in accordance with different hardware, location and container requirements. Increased flexibility with small expense, fewer components.
Patent DE-4017949-A1 (DE)
Inventor: FRANIA JOSEF
IPC: F16D65/60
Filed: 1990-06-05
Abstract: 2. Known adjusting devices require either a close fitting tolerance of the brake device, since exceeding this can lead to fracture of the device, or they are provided with expensive means which permit a generous fitting tolerance. The new device is intended to achieve a generous fitting tolerance by relatively simple means. 
<??>2.2 The drive (8, 9, 12) of the adjusting device (2, 4), formed from a rack and pinion drive, is surrounded by clearances (30, 31), which allow the geared rack (9) an appropriate freedom of movement. 
<??>2.3 The device is suitable for use in a brake lever with automatic adjusting device. 
<IMAGE>
Patent DE-4018407-A1 (DE)
Title: Breaking out and developing roadway in tunnels - by using groups of cutting heads supported on vertical props and filled with self hardening material
Inventor: WALBROEHL HEINZ-THEO
IPC: E21D9/06
Filed: 1990-06-08
Abstract: Equipment for breaking out and developing a roadway in closed or open tunnels by means of individual or groups of cutting heads (24) in the form of a shield. Vertical supports (16) prop up horizontal formwork beams (12), and self hardening material (52) is filled in on to the formwork (12) behind the cutter heads (24). USE/ADVANTAGE - Used in ground unsuitable for tunnel  boring. Finished lining immediately follows the cutting shield.  @(12pp Dwg.No.2a, 2b/8)
Patent DE-4019081-A1 (DE)
Title: Folding trolley for transporting luggage - has telescopic side members hinged together at trolley handle
Inventor: STOERIKO ANDREAS
IPC: B62B1/12
Filed: 1990-06-15
Abstract: The folding trolley for transporting luggage has two telescopic side members (5a,5b). These side members are hinged together at their upper ends (13) to which a handle (4) is attached. A wheel (6) is attached to the lower end of each side member. The side members (5a,5b) are held in the operating position by a cross-member (6) which can be swung to the side of the side member (5a) when the trolley is folded. The luggage is held on the trolley by an end member consisting of the two parts to be folded towards each other when the trolley is folded. USE - Transport of luggage on folding trolley.