baber/WOPTO huggingface dataset:
Patent DE-4017425-A1 (DE)
Title: Check valve for engine fuel delivery systems
Inventor: HOOVER THOMAS MEREDITH
IPC: F02M69/46
Filed: 1990-05-30
Abstract: The fuel delivery system that includes a pump for supplying fuel under pressure from a supply to an internal combustion engine, a check valve is positioned between the pump and the engine for preventing back-flow of fuel from the engine to the pump. The valve has a flow passage with a central axis and a valve seat orientated away from the pump. A valve element is positioned within the passage for axial motion against a coil spring as a function of fuel pressure from the pump. The coil spring is captured in compression between the valve element and a guide positioned downstream of the valve element within the flow passage. A stem that extends axially from the valve element is slidably disposed in a central bore in the guide. An orifice couples the bore to the fluid flow passage. The guide and valve stem thereby not only restrain lateral motion of the valve element within the passage, but also form a piston/ cylinder construction that cooperates with the orifice to dampen axial motion of the valve element. Thus, axial and lateral motions of the valve element are stabilized, greatly reducing the vibrational signature of the pump and check valve system, and reducing pressure pulses delivered from the pump to the engine. @(4pp Dwg.No.1/2)@
Patent DE-4020483-A1 (DE)
Inventor: HEINRICHS FRANZ-LEO DR
IPC: C07C69/34
Filed: 1990-06-27
Abstract: A mixed ester of a long-chain aliphatic monocarboxylic acid with 24 to 40 C atoms, an aliphatic bicarboxylic acid with 2 to 12 C atoms and an aliphatic polyol with 3 to 12 atoms and 3 to 6 OH groups exhibits a very high separating action as a parting agent in thermoplastic materials. It also provides great transparency, especially in glazing roller films.
Patent DE-4030379-A1 (DE)
Inventor: SCHLUND RUEGER DR
IPC: C08F10/06
Filed: 1990-09-26
Abstract: Polymer waxes of propylene with 0 to 40 % by weight of other C2-C8-alk-1-enes have a Höppler hardness of from 500 to 3,000, a crystallinity, determined by the xylene-insoluble content, of from 75 to 98 % by weight, an isotacticity of greater than 70 % by weight and a weight average molecular weight Mw of from 5,000 to 100,000. The polymer waxes according to the invention are obtainable by Ziegler-Natta polymerisation from the gas phase in an agitated fixed bed in the presence of from 5 to 60 % by volume of hydrogen.
Patent DE-4033859-A1 (DE)
Title: Active additional loudspeaker system - has FM noise suppression, for which power supply is derived directly from signal supplied to radio loudspeaker without additional provision
Inventor: STEPANIENKO REINHARD
IPC: H03G3/34
Filed: 1990-10-24
Abstract: Computer evaluation has shown that voltage and current ratios available at the loudspeaker connections of pan-European standard CEPT-PR27 radios are sufficient to operate an active loudspeaker system. This would render the useful signal audible with simultaneous suppression of interference and noise components. The supply voltages required for this purpose are derived from the loudspeaker signal of the radio by sepn. and rectification. USE/ADVANTAGE - With both mobile and stationary radiocommunication equipment. Highly effective suppression of FM and reception noise is achieved without additional control, adjustment and operational current or supply voltages.
Patent DE-4034092-A1 (DE)
Title: Continuous edge sealing and cutting of two synthetic films - has heated knife with step to give wide strong seal for heat-sealed packaging
Inventor: BECK HANS
IPC: B29C65/74
Filed: 1990-10-26
Abstract: At least two layers of synthetic film are cut and heat sealed by a knife whose direction of movement has a normal and a parallel component relative to the film. The knife has a first, relatively broad surface to produce a wide seal and a second narrow section to produce a cut and edge seal. The knife can be rocking, rotating or reciprocating. The step between the first and second section can be 1-10mm, pref. 1-5mm. A geared drive gives a rocking motion to a heated knife and a broad seal is produced between polythene films enclosing the item to be packed to the right. A thin strip of waste is separated to the left. The broad section of the knife exerts a pressure of 1-20 mbar against a cooled bar. USE/ADVANTAGE - The invention provides a broader and stronger seal for heat sealed packaging material. (0/7)
Patent DE-4038646-A1 (DE)
Title: Solar cell array with rigid solar cells - has cells interconnected by current conductors in flexible band of at least one cell row
Inventor: STEIN KARL-ULRICH DR ING
IPC: H02S20/10
Filed: 1990-12-04
Abstract: The solar cell array consists of numerous, identical solar cells, passivated against environmental influenced and of sufficient rigidity. They are interconnected by current conductors and formed into a flexible hand in at least one, row. The band is pref. formed by flexible conductors. Several such bands may be clamped to form the array on support elements. Individual cells may be stiffened and embedded in plastics. The stiffening may be provided by laminations in the band, the individual solar cells are coupled in parallel. The conductors may be wires or strips. ADVANTAGE - Simple design, low-cost mfr. and assembly, weather resistance, and easy handling.
Patent DE-4038898-A1 (DE)
Title: Comparing activity and bioavailability of therapeutic mixts. - from their effects on erythrocytes, esp. for assessing activity of plant extracts
Inventor: ARTMANN GERHARD PROF
IPC: G01N33/15
Filed: 1990-12-06
Abstract: The activity and/or bioavailability of therapeutically active mixts. (A) esp. plant extracts, are compared by examining the nature of human or animal erythrocytes after exposure to (A). The quiescent shape or spontaneous curvature of freely suspended erythrocytes can be detected, either directly of from the curvature of their cell membranes. The effects of (A) can be studied both in vitro (esp. in autologous plasma) or in vivo (by comparing the effects of intravenous admin. with those of oral (or other forms of) admin.. USE/ADVANTAGE - The method allows the biological effects of (A), which do not have a well defined compsn., to be estimated reliably, rapidly and quantitatively, and for comparisons to be made between different application forms. Cumbersome and time-consuming serial investigations are not needed
Patent DE-4039099-A1 (DE)
Title: Cellulose fibre pulp is bleached - with chlorine di:oxide and ozone in any desired sequence without intermediate washing
Inventor: BOSENIUS CHARLOTTE
IPC: D21C9/153
Filed: 1990-12-07
Abstract: In prepn. of chemical pulp, cellulose fibre pulp is continuously fed to bleaching line and bleached in one and same stage by ClO2 and O3 in any desired sequence, ClO2 and O3 being added at points sepd. from one another and each at at least one place in the line, this stage being free from intermediate washing between places for addn. of ClO2 and O3. ADVANTAGE - Adsorbable organic halogen (AOX) is decreased, bleaching effect is improved, use of Cl2 and ClO2 is reduced, bleaching pulp has required brightness and strength.
Patent DE-4102595-A1 (DE)
Title: Motor vehicle steering system control arrangement - controls wheels according to vehicle state, e.g. yaw angle, for increased directional stability, e.g. during cornering
Inventor: KARNOPP DEAN C
IPC: B62D111/00
Filed: 1991-01-29
Abstract: A steering system control arrangement is for a vehicle with steerable wheels (12) with connected steering arms (30) and a main rack-and-pinion steering assembly (14, 16, 18, 20). Drives (22) connect the rack to the steering arms with relatively movable parts connected to the rack and arms. The drives are controlled by a controller (32) according to the difference between the measured and desired values for a vehicle state such as yaw angle. The wheels are thus steered independently of the movement of the rack. USE/ADVANTAGE - For maintaining directional stability of a moving vehicle, e.g. during cornering.
Patent DE-4103016-A1 (DE)
Title: EM signal generator for clock with electronic alarm - has permanent magnetic particles in base of plastics material housing and diaphragm with mound-shaped flux return bridging piece
Inventor: GUENTHER SIEGFRIED
IPC: G10K9/13
Filed: 1991-02-01
Abstract: The lower part of the housing receives a carrier plate with a coil core, a coil, a circular magnet and a diaphragm with a central flux return disc. The whole is closed by a resonator cap. A flux return bridging piece (7) extends from the centre of the diaphgram (6) to its edge in the shape of a mound-like projection. The lower part (1) of the housing is formed as a permanent magnet. A carrier disc (5) fixed to the coil core (3) serves as a holder for the coil (4). The lower part is pref. produced from injection mouled plastics material contg. homogeneously distributed magnetic particles. The carrier disc (5) is pref. a plastics material part stabilised by a metal grid. ADVANTAGE - Large free area for oscillation of diaphragm.
Patent DE-4106137-A1 (DE)
Title: Image projector - has layers to give alternating positive and negative shapes with replaceable images
Inventor: REIL PHILIPP
IPC: G09F19/12
Filed: 1991-02-27
Abstract: The appts to give picture and text images, alternately in positive and negative form which are exchangeable and variable for displays and projection, has two intersecting linear polarising layers (1,2) which can be polarised. Two layers (3,4) are between them to pass through the oscillating plane of the linear polarised light to turn it by 90 deg. The layer (4) towards the viewer is mounted to move on its plane in relation to the other layers (1,2,3). Pref the polarising layer (3) away from the viewer has two different zones (31,3b) where only one zone (3a) has the required optical character and the other zone (3b) prevents rotation of the linear polarised light. The moving layer (4) rotates. The layer (3) away from the viewer can be replaced. The second zone (3b) of the layer (3) is formed by cutting or stamping chemical or mechanical action to remove the ability to rotate the penetrating linear polarised light by 90 deg c. The layer (3) is an optically neutral carrier. such as a glass, with the first section (3a) formed by adhesive plastic film segments which can rotate the linear polarised light by 90 deg, such as Tesafilmm (RTM) adhesive film strips. The moving layer (4) is operated by a drive (7), and a light source (8) passes light through the layers (1,2,3,4) with a reflective layer to illuminate the layers (1,2,3,4). ADVANTAGE - The system gives a rapid and trouble-free change and replacement of images to increase the awareness of the positive and negative presentations through alternating change.
Patent DE-4114475-A1 (DE)
Title: Transfer device for continuous supply of empty lightweight packaging cartons - has side transport mechanism and lift member to overcome stop
Inventor: WIEMANN JOSEF
IPC: B65G47/88
Filed: 1991-05-03
Abstract: The continuously incoming cartons are biased by side transport elements (6) for continuous movement and are supplied through the conveyor pressure against a stop so that each leading carton (4) is supplied by a lift device (10) over the stop plane rhythmically to the further conveyor (11) by maintaining the side components of movement. The conveyor elements (6) are pref. made of resilient material as brush rollers or endless conveyor belts to form a continuous channel which centres the cartons laterally. ADVANTAGE - With the transport elements engaging at the sides there is no damage to the tops of the cartons.
Patent DE-4116767-A1 (DE)
Title: Snap connection for folding back rest of vehicle seat - uses steel plate which is stamped out and bent to shape
IPC: B60N2/36
Filed: 1991-05-23
Abstract: The snap connection is for securing the folding back rest of a vehicle seat consisting of an originally flat steel plate which is first stamped out and then bent to the correct shape. The stamped out part (1) has a central strip (2) which defiines the engagement region (6), and attached end pieces (3) with engagement tongues (4) to form the front plate (5) together with a shaft bearing (8). ADVANTAGE - Snap connection for a vehicle seat which is simple to manufacture and which can easily be discarded by subjection to a recycling process.
Patent DE-4122075-A1 (DE)
Title: Two stage press with template to check workpiece - has stages separated by space in which template is installed with template mounted on two horizontal bars which are supported by short bars attached to frame
Inventor: BLAU PETER
IPC: B21D43/05
Filed: 1991-07-04
Abstract: A two stage press for pressing sheet metal workpieces (1) has the stages separated by a space in which a template (7) is installed. The template is mounted on two horizontal bars which are supported by short bars (9) attached to a frame (8). When a workpiece has passed through the first forming stage it is held in the intermediate space whilst the frame is moved upwards and inserts the template into the workpiece in order to check that the first operation has been correctly carried out. USE/ADVANTAGE - Two stage press with automatic checking of the workpiece between stages.
Patent DE-4125453-A1 (DE)
Title: Device for collecting and cleaning rain water - solid impurities are sepd. by reducing flow rate and/or coarse filtration in inlet section to flow equalisation channel
Inventor: HOLLWECK FRANZ
IPC: B01D29/085
Filed: 1991-08-01
Abstract: In a new procedure making use of rain water, comprising cleaning the water before or after it enters a collection vessel, a) the velocity of the water in an inlet section is reduced, b) by this means the solid impurities in the water are at least in part separated and/or filtered from the water, and c) the water then moves under gravity into a channel-like outlet and filtering device below the inlet section, and in this the water flow is equalised before it passes into a storage tank. USE/ADVANTAGE - Used in the collection of rain water e.g. for domestic applications such as flushing toilets, washing clothes or cars etc.. The water is effectively cleaned of solid impurities by a device which operates reliably under conditions of widely differing water flow rates, freezing etc., and which is easy to service and maintain. The water flow is kept approximately constant in spite of varying rates of rainwater inflow and a smooth flow pattern at the inlet to the collection and filtering system is provided.
Patent DE-4127257-A1 (DE)
Inventor: ALBER ULRICH
IPC: B60K7/00
Filed: 1991-08-17
Abstract: In the small-sized vehicle, in particular wheel chair, fitted with motors in the wheel hub, the entire drive part comprising a D.C. motor and a planet wheel gear is housed without any projecting end within the wheel hub (10). This permits the driven wheels to be designed as removable plug-on wheels. Between the hub and the planet wheel gear there is formed a coupling (45, 46) which can be easily operated by a wheel chair driver and which also permits free, manually operated movement of the running wheels. The invention permits wheel chairs which have a foldable chair frame and can be dismantled for transportation to be provided even subsequently with an electric motor drive. 
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Patent DE-4130612-A1 (DE)
Inventor: BREHM MANFRED DR
IPC: C08F20/52
Filed: 1991-09-14
Abstract: Polymethacrylimide polymers which are low in amide or N-alkylamide groups and in carboxyl and carboxylic anhydride groups are obtained by heating copolymers comprising from 1 to 60 mol% of methacrylamide and/or N-alkylmethacrylamides and from 40 to 99 mol% of alkyl methacrylates and/or phenyl methacrylate to from 170 to 450 DEG C in an aliphatic monoalcohol.
Patent DE-4132225-A1 (DE)
Title: Mixing resin etc., for e.g. GRP prodn. - using cylindrical tank, successively drawing in resin, hardener and accelerator under vacuum, and violently blowing air in from base to mix
Inventor: WEIGEL JUERGEN
IPC: B01F33/40
Filed: 1991-09-27
Abstract: A hard-setting mix of resin and additives is produced for the prodn. of (partic.) GRP components, whereby the individual materials such as liquid resin, hardener, inhibitor accelerator, pigments etc. are added to a mixer in succession and there mixed before the mix obtained is processed further. The liq. resin and additives are metered out by volume into the completely sealed mixer; a vacuum is applied to the mixer and a valve beneath the mix is briefly opened. ADVANTAGE - The method mixes very efficiently and hence requires little time. It prevents the ingress of any air or dirt into the liq. resin mixt. obtd.. It minimises undesirable emissions and it prevents explosion
Patent DE-4204929-A1 (DE)
Inventor: DVORAK SUSANNE DIPL ING
IPC: G06F12/02
Filed: 1992-02-19
Abstract: The substantial memory requirement for speech storage demands the optimum use of limited-availability memory space. For this purpose, the semiconductor memory is divided up into individually addressable memory segments. With a memory controller, messages are divided into data blocks and stored in memory segments which are contained in a directory of available memory segments. Memory segments identified as defective are excluded from use. Data blocks belonging to a message are located by means of a start-up address for the respective first data block and in the used memory segments with stored follow-on addresses which identify the respective next memory segments. Simplified access to specific messages can, for example, be provided via telephone numbers. The speech storage system can be used to particular advantage in terminals such as telephone answering machines.
Patent DE-4205199-A1 (DE)
Title: Locking piece for housing of piston pressure accumulator - has stepped profile engaged by deformable housing
Inventor: HASEGAWA TADASHI
IPC: F15B1/24
Filed: 1992-02-20
Abstract: Fastening arrangement for a locking piece in a piston-pressure accumulator (1) consisting of a cylindrical housing (1a) containing a displaceable piston (2) and a locking piece (5) inserted in an open end (1b) of the housing. The locking piece has two steps (5a, 5b) of larger and smaller diameters on an outer circumference surface and the deformable housing presses against the steps. USE/ADVANTAGE - Fastening system for the accumulator of an antilock braking system (ABS) on a vehicle which prevents the piston springing out in the event of an unduly high pressre increase.
Patent DE-4209491-A1 (DE)
Title: Contactless measurement of static and dynamic deformation of micro-mechanical structures eg bridge or membrane - projecting laser line pattern perpendicular and at angles to  surface and evaluating surface lines in real=time
Inventor: HECHT SIEGMAR DR
IPC: G01B11/16
Filed: 1992-03-24
Abstract: The method involves directing (3) a linear pattern (2) towards the structure (1) which performs vibration motions among others.  The illuminated lines are detected perpendicularly and at an angle to the surface during deformation. The corresp. measurement signals are fed into an evaluation unit (5,7,8) and evaluated in real time.  The angle of incidence of the projected line pattern is a constant 45 deg. to the undeformed structure during the measurements. USE/ADVANTAGE - E.g. for measuring force, deformation and vibration frequencies of micro-mechanical elements. Enables  entire deformation line and its dynamic variations to be measured in real time.
Patent DE-4212015-A1 (DE)
Title: Photographic film spectral distribution measuring method for calculating exposure value - using linear summation of main spectral distribution components for different samples
Inventor: TAKAHASHI KOJI
IPC: G03B27/73
Filed: 1992-04-09
Abstract: The spectral distribution measuring method involves analysis of the spectral distributions of a number of film samples, to determine the main spectral distribution components. The light passed through the film is spectrally divided into different wavelength bands, corresponding in number to the main spectral distribution components. The spectral distribution coefficients are obtained by linear summation of the latter, using the photometric values for each wavelength or wavelength band. The main spectral distribution components are obtained by analysis of spectral transmission density distributions for a number of similar film samples. ADVANTAGE - Accurate; compact photometric appts. may be used which does not require defraction grating or several interference filters.
Patent DE-4212263-A1 (DE)
Title: Actuating gear for lifting valves in IC engine - has valve lifter shaft, which is longitudinally displaced to couple neighbouring valve lifters via switching elements
Inventor: BOEHLER GUNNAR
IPC: F01L1/18
Filed: 1992-04-11
Abstract: The valves (1,2) are actuated by valve lifters (11,12), which are supported on a lifter shaft (4). Each lifter has an associated cam (21,22,23). Switching elements (7a,b) couple at least two neighbouring valve lifters of a cylinder of the engine. The elements are actuated by longitudinal displacement of the lifter shaft. The lifter shaft is supported in carrier journals, which are fastened on transverse walls of the engine casing. The journals carry at least one lifter per cylinder. The shaft carries at least one switching element per cylinder, to couple a lifter on the journal to another lifter. The element has external toothing, meshing with internal toothing (5) of the valve lifters. USE/ADVANTAGE - Simplified IC engine valve gear is compact with fewer number of parts, safe and reliable.
Patent DE-4214446-A1 (DE)
Title: Video cassette contg. tape and memory chip read=out contacts - carries external hexagonal conductive contacts combined or sepd. for exchange of encoded data with optional semiconductor memory.
Inventor: PLATTE HANS-JOACHIM DR ING
IPC: G11B23/30
Filed: 1992-05-06
Abstract: The casing carries a printed circuit including four contacts (1-4) each comprising two hexagons (e.g. 1a,1b) having a common edge in some instances and a pair of contact springs (13,14). Where a semiconductor memory is incorporated it is connected to the contact set and written and read via the springs. In the absence of a semiconductor memory some of the hexagons are isolated from one another and binary values ("0","1") are registered by the spring contacts on isolated and conjoined hexagons respectively. USE/ADVANTAGE - Esp. for digital video recording, important basic data can be stored without need for conventional encoding holes in cassette casing.
Patent DE-4217619-A1 (DE)
Title: Oil-burner nozzle-bar with return nozzle - has stop valve between return nozzle and feed and return pipes and controlled by oil pressure in feed pipe
Inventor: PFISTER HANS
IPC: F23D11/28
Filed: 1992-05-27
Abstract: The bar has a return nozzle, and feed and return pipes connected to the oil supply. A stop-valve (4) is mounted between the return nozzle (1) and the pipes (2, 3), and operates dependent on the oil pressure in the feed pipe (3), freeing or shutting off the supply immediately before the nozzle. The valve can comprise a housing (5) with chamber (6), and feed and return passages (7, 8) connecting the respective pipes via the chamber to the return nozzle. A plug (9) in the chamber works between a position shutting off the feed and return flow, and a working one in which both are freed. ADVANTAGE - Prevents oil leakage past return nozzle on abutting down.
Patent DE-4218833-A1 (DE)
Title: Combined storage container and umbrella with support bars - has base, screw, hooks, tension wires, wall and wall struts and pin on fixture plate
Inventor: DRIGNATH ROLAND
IPC: A45B23/00
Filed: 1992-06-09
Abstract: The storage container has support bars (6-8) pref. inserted over the spokes of an umbrella or placed on a pole stuck into the ground. The container has a base (1), cutout section (15) and adjacent fitment (3). The fitment has a screw (2) and two suspension hooks (13, 14). A flexible wall (12) has struts (11) with rotary connections to the base. The edge of the base has wire tension pieces (10) for fixing the wall struts (11). The support bars are mounted on the pin (5) of a fixture-plate (4). USE/ADVANTAGE - The umbrella is combined with a storage container, eg. for hanging out clothing.