baber/WOPTO huggingface dataset:
Patent DE-3909461-A1 (DE)
Title: Rock-burst safety valve
Inventor: VOSS RICHARD
IPC: F16K17/04
Filed: 1989-03-22
Abstract: A rock-burst safety valve with a flow rate of 2000 to 3000 l/min can be used especially effectively to protect hydraulic units in underground mining. Here, a releasable non-return valve is arranged upstream of the actual pressure-relief valve. The non-return valve is controlled via the pressure-relief valve in such a way that it opens reliably and quickly if excess pressure occurs and can then discharge the described quantities of pressure fluid. Both the pressure-relief valve as well as the releasable pressure-relief valve can be adjusted by the adjustment of the valve spring. A pressure-relief valve or else a choke is allocated to the releasable pressure-relief valve in the area of the retention space behind the control piston. <IMAGE>
Patent DE-3913487-A1 (DE)
Title: All-wheel drive farm tractor
Inventor: HAUPT JOSEF
IPC: B60K17/35
Filed: 1989-04-25
Abstract: In an all-wheel drive farm tractor, the front axle differential (6) and rear axle differential (15) of which off the road are permanently driven by output shafts (2 and 3) of a gearbox (1), so that a rigid connection exists between front and rear axle, it is intended to compensate for the higher speeds of the front axle (7) which occur when cornering. It is furthermore intended that a device for adjustment of the axle speeds be incorporatable into the farm tractor without significant structural modifications. For this purpose a clutch (16) is arranged between ring gear (12) and differential cage (14) of the rear axle differential (15), which clutch is designed as controlled slipping coupling and the slip condition of which is controlled as a function of the size of the turning circle radius to be travelled through and/or the tractive power demand. <IMAGE>
Patent DE-3914064-A1 (DE)
Title: Bead core for foldable bicycle tyres
Inventor: HAHN FRIEDRICH WILHELM
IPC: B60C15/04
Filed: 1989-04-28
Abstract: In order to provide a bead core for foldable bicycle tyres, consisting of plastic fibres which are wound to form a ring and are steeped with binding agent, which bead core corresponds to the highest requirements with respect to its dimensional stability and which, in addition, even after installation in a corresponding tyre ensures a better seat of the tyre on the rim even in the case of considerable overpressure, it is proposed that the core consist of a plurality of fibres which are wound in a plurality of layers one on top of the other and next to one another, in each case one fibre being wound to form a core element (e.g. 1, 2, 3, 4) with a plurality of turns (e.g. 5-8) which are wound one on top of the other, a plurality of such core elements (e.g. 1-4) being arranged one next to the other and the core elements which are arranged one next to the other being wound in each case with reversed lay in a Z-S configuration. <IMAGE>
Patent DE-3914367-A1 (DE)
Title: Optical fibre cable - with central element and sheath made of liquid crystal polymer
Inventor: HOEG GEORG
IPC: G02B6/44
Filed: 1989-04-29
Abstract: Optical fibre cable has a central element (1), made at least partly of liquid crystal polymer (LCP) with a slot for an optical fibre (3), embedded in a filler (4) such as thixotropic oils.  A foil (5) around it is again made of LCP which can be wound in a spiral.  The outer sheath (6) is made of a thermoplastic material. ADVANTAGE - LCP presents a good water vapour barrier.  Its thermal expansion coefficient can be adjusted to that of the optical fibre.
Patent DE-3919310-A1 (DE)
Inventor: INOUE HARUO
IPC: B41J2/30
Filed: 1989-06-13
Abstract: A dot matrix printer has a print head (A) in which a drive arm (6) for driving a respective printing element (5) is controlled by electro-magnetic driving means (12, 13). The printer has control means (C) arranged to vary at least one of pulse width, voltage or period or drive pulses supplied to a drive coil (13) of the electro-magnetic driving means in dependence upon the temperature of the print head. <IMAGE>
Patent DE-3921643-A1 (DE)
Title: Photographic camera having automatic focusing
Inventor: KOBAYASHI TAKEO
IPC: G03B3/00
Filed: 1989-06-30
Abstract: The invention relates to a monitoring device for the operation of a measuring unit which outputs information about a predetermined parameter. The measuring unit provides a display of this information after the measurement, for example as display lamp. The measuring unit contains an arrangement for locking the display device for a predetermined duration after expiry of a time which is related to the information obtained from the measuring unit. The monitoring device measures this time and provides a display preferably in the shape of the monitored parameter. The invention is suitable in particular for monitoring the distance-measuring unit or the light-metering unit of an automatic photographic camera so that correct operation of such units can be tested without disassembling the camera. <IMAGE>
Patent DE-3922609-A1 (DE)
Title: Float body throughput meter with replaceable float - has smallest effective cross-section in centre and narrowing halves for industrial and laboratory use
Inventor: GUENTHER WOLFGANG
IPC: G01F1/22
Filed: 1989-07-10
Abstract: The float body flow meter has a flow tube (1), a constriction forming a measurement gap (5) in the tube and a float body (4) which is deflected form its initial position by the through flowing measurement material.  The float is contained within the constriction which is pref. a measurement nozzle or tube. The smallest effective cross-section of the float body lies in its centre section.  The stroke of the float body is half its length and the upper and lower halves (4a,4b) can be identical or can narrow differently towards the centre. USE/ADVANTAGE - For monitoring flow rates of luid media in different regions of industry and in laboratory.  Number of measurement applications is increased whilst maintaining same number of variants of equipment to be manufactured by enabling float body to be easily changed.
Patent DE-3925291-A1 (DE)
Title: Cascade sieve for sepg. broken cocoa shells for worm - conveyance to terminal crusher
Inventor: KEGEL WALTER
IPC: A23G1/04
Filed: 1989-07-31
Abstract: When cocoa beans have been crushed for discharge from a hopper (5), the resulting mixt. of broken shells and cocoa solids is progressively sepd. by a cascade of vibratory sieves (2) superimposed horizontally or an inclined series. At the end of each sieve plate is a suction air shaft (6) selectively raising the lower density shell portions into the sections of a shell chamber each contg. a collector pipe (8) delivering smell to medium shell material to a feed-worm (9). Material conveyed by the worm enters one or more terminal pulverisers, e.g. with rotating arms cooperating with an indented casing wall. Cocoa prods. from the sieve are discharged from the foot of the sieve cascade. ADVANTAGE - Extensive removal of shell pieces reduces transport costs for residue.
Patent DE-3930547-A1 (DE)
Title: Non-polluting biological fuel prodn. for internal combustion engine - by reacting gasoline with yeast, water glycol and other catalytic substances
IPC: C10L1/18
Filed: 1989-09-13
Abstract: A non-polluting biological fuel for internal combustion engines of all types, with which the harmful exhaust prods. do not form, due to catalytic and ionic alteration of the combustion process in the engine, is obtd. by charging yeast, water, glycol and other catalytic substances into a vessel and filling up with gasoline. A conversion occurs in the fuel, recognisable by the Tyndall effect, among others, caused by condensation and combination of small molecules in the soln., consisting of gasoline and the catalytically active substances. ADVANTAGE - The process takes 1-2 days (or 12h at 30-33 deg.), compared with 9 months for the process of DE3811111.
Patent DE-3934337-A1 (DE)
Title: Hinge for cupboard door - is secured by hooked lever and is provided with cover to prevent inadvertent release of lever
Inventor: ROHDE REINHARD
IPC: E05D5/02
Filed: 1989-10-14
Abstract: A door (3) is attached to a cupboard (5) by a hinge (1) which has one arm (2) fastened to the door and the other arm (4) attached to the body of the cupboard (5).  The arm (4) is attached to the body of the cupboard by means of a fitting (7) which is fastened directly to the cupboard.  This fitting (7) is shaped to receive the arm (4) of the hinge (1) and has a projecting edge. This edge is engaged by the hook of a lever (9) whcih secures the hinge arm (4) to the fitting. By rotating the lever (9) the hook can be disengaged to enable the door to be removed from the cupboard. To prevent inadvertent removal of the door (3) the hinge arm (4) is provided with a snap-on  cover (16) which covers the lever (9). USE - Cupboards and cabinets.
Patent DE-4000148-A1 (DE)
Title: Appts. for decontaminating contaminated earth - by sepg. solids using high pressure water and air, washing solids with wash fluid floc-filtering obtd. colloidal dispersion, etc.
Inventor: APFELBAUM HELMUT
IPC: C02F11/122
Filed: 1990-01-04
Abstract: Contaminated soil e.g. contg. heavy metals, cyanide, etc., is disposed of by a process in which the solids content is separated by the action of pressurised water and compressed gas. Solids are washed with a wash liquid and the separated colloidal suspension is subject to a flocculating filtration, the solid particles being bonded to the flocculating agent and separated by sedimentation. The purified soil is replaced and the hazardous substances are disposed of. ADVANTAGE - Allows soils to be returned to use.
Patent DE-4001363-A1 (DE)
Title: Photo-thermographic compsn. - contains dyestuff in spectral sensitiser and is fixed by photo-cure of compsn. and bleached by heating
Inventor: YAMAGUCHI JUN
IPC: B41M5/28
Filed: 1990-01-18
Abstract: Photothermographic compsn. contains a photocurable comspn. and dyestuff(s) of formula ((IA), (IB), (IC) and/or (ID): where Q = a ring of the formula (II) where Ar1 and Ar2 = (hetero)aryl, which can be joined to a ring; R1-6 = H, alk(en)yl, aralkyl or (hetero)aryl but R1 and R2 not both = H; Y = CN, NO2, SO2-R7, -SO-R7, CO-R7, COO-R7 or CONR7R8; R7-8 = H, alk(en)yl, aralkyl or (hetero)aryl; A = a gp. completing a 5-6-membered ring; X- = a gp. with electric charge -1; ring Q in (IB) and (ID) may be condensed with an aromatic or heterocyclic ring; and Ar1, Ar2, R1, R2, ring A and ring Q may have other substits. (I) can be prepd. (not claimed) by various well-known methods.
Patent DE-4003088-A1 (DE)
Inventor: SIOL WERNER DIPL CHEM DR
IPC: C08J7/043
Filed: 1990-02-02
Abstract: The invention relates to multilayer composite systems built up from polyesters P1 and poly(meth)acrylates P2, where the poly(meth)acrylate P2 is applied, as top layer, to the polyester P1 and contains from 0.1 to 10 % by weight, based on P2, of conventional UV absorbers, and to mouldings formed therefrom.
Patent DE-4003121-A1 (DE)
Title: Spring-loaded brake cylinder with ball-operated microswitch - has plunger moving radially with ball displaced by rim of disc driven by movement of piston
Inventor: GOLEA FILIP DIPL ING
IPC: B60T13/22
Filed: 1990-02-02
Abstract: The microswitch (19) is actauted at right angles to the axis (17) of the brake cylinder in which a piston (2) coupled to a tubular rod (1) is impelled by  hydraulic fluid drawn through a port (3) into the working space (4). The end (10) of the plate spring (6) is engaged with a cylindrical angled portion (12) of a disc (11) sliding in an enlarged section (14) of the spring holder (8), which has a radial bore (15) contg. the ball (18) actuating the microswitch plunger through a watertight seal (20). ADVANTAGE - More precise switch takes up little space esp. in radial direction.
Patent DE-4007680-A1 (DE)
Title: Glass-ceramic cooking hob - has field of sensor-driven elements each a preset different power outputs
Inventor: GASSER INGO
IPC: F24C15/10
Filed: 1990-03-10
Abstract: Several cooking areas are arranged adjacent one another, and each is separately operated via a sensor controller. For closely adjacent cooking element areas the heating powers are set to be different. Pref. the cooking areas are matrix-arranged in rows and columns, and each area (32) is essentially rectangular.  The control may be freely programmable. In one set-up, the heating power rises or falls from back to front of the hob, the areas switching on when a pot is over them.  Control of heat is then achieved by moving the pot across the hob. ADVANTAGE - Increasing automation of cooking process.
Patent DE-4007862-A1 (DE)
Title: Bellows material - is an uncut double pile weave
Inventor: ANDRE PORTE DE LA GILLES
IPC: B61D17/22
Filed: 1990-03-13
Abstract: The bellows, to shroud the links between vehicles or machine sections, is formed by a fabric (5) of uncut double-pile material of synthetic or mixed fibre yarns, with an upper (7) and lower (8) layer with piles (9) through the space (12) between them. The length and density of the piles (9) are structured to give an elastic bond between the layers (7,8). The upper and lower layers (7,8) are composed of intersecting warps (10) and wefts (11) of man made yarns with different stregths and/or stiffness. The warps (10) are of a monofilament yarn or high tensile multifilament yarn and the wefts (11) are of a spun fibre of multifilament yarn, or vice versa. The pile yarns (9) are of the same material as the warps (10) and/or wefts (11).  The pref. synthetic fibres are of polyester, polyamide, polypropylene, polyethylene, polyacryl nitril or vinylate. The high tensile multifilament yarns are pref. of aramide, glass, carbon or high tensile polyethylene. The upper (7) and lower (8) layers can be knitted.  The piles (9) are bonded in a V or W structure and their neighbouring bonding points are displaced. The pile (9) length is 0.1-12 mm and pref. 0.1-4 mm in a density of 300-25 piles/cm2. A number of fabric layers (5) can be assembled above each other. At least one additional folding bellows layer can be applied to the fabric (5). A web (6) of an elastic polymer is applied to both sides of the material (5). ADVANTAGE - The bellows material is simply produced and gives a durable component.
Patent DE-4010789-A1 (DE)
Title: High energy laser power conductor failure optical detector
Inventor: ROCKSTROH TODD JAY
IPC: B23K26/42
Filed: 1990-04-04
Abstract: An optical conductor (16) carrying laser power and an integrity checking optical conductor (26) are contained in a tube (30) so that the leakage of laser energy from the laser power conductor causes failure of the integrity checking conductor. A detector device senses failure of the integrity checking conductor, thus detecting the failure of the laser power conductor. The detector device transmits an integrity signal via the detector conductor to a light sensitive diode.
Patent DE-4016606-A1 (DE)
Title: Seal between shut=off valve and its frame - incorporates double armed sealing lamella with support and sealing arms
Inventor: PROCHAZKA PETER
IPC: F23L11/00
Filed: 1990-05-23
Abstract: The seal between a shut-off valve (2) and a valve frame (3) has a double-armed sealing lamella (7) which has a clamping arm (8) and a sealing arm (10) which comes to abut linearly with a sealing edge (11) against the sealing face (12).  The sealing arm (10) includes an acute angle (X) with the clamping arm (8) wherein the pressure lamella (15) can be fixed on the shut-off valve (2) or its frame (3) by its base arm (14) parallel to the clamping arm (8) and together with the clamping arm. The pressure lamella linearly grips under the sealing arm (10) in the centre longitudinal area by its support arm (13) which is mounted at an acute angle (beta) to the base arm (14).  The sealing arm (10) is preferably mounted at an angle of 45 deg. to the clamping arm and the support arm at an angle of about 15 deg. to the base arm (14). USE/ADVANTAGE - The sealing edge can adapt to mfr. tolerances of the valve or frame without problem.
Patent DE-4017908-A1 (DE)
Title: False-twist mechanism - has devices to facilitate threading at high speeds without damage to the thread
Inventor: HINN WALTER
IPC: B65H51/16
Filed: 1990-06-02
Abstract: Process of threading a false-twist friction mechanism, which runs the thread in a zig-zag manner across a series of discs is claimed. Thread is passed across the end of a fluid jet which twists it. The jet is then moved towards the disc drive. Pref. the centres of a tripartite disc arrangement have the discs and thread ready for insertion. The jet is held in a bracket with fluid connection and attachment. The jet has a nozzle with a V cut across, so that the fluid is directed in a revolving stream. This transfers to the thread, causing it to twist. As the jet is advanced into the gap under disc, it is already spinning, and meets the moving discs without excess friction. Fibrillated yarns running on lappets for the purpose of threading are partic. difficult to thread in, and a single jet will overcome the problem. The jets must not be placed horizontal, but have a small deg. of angle to the thread. In the event of a large number of discs, it is advisable to employ a series of jets along the thread. ADVANTAGE - Higher prodn. speeds are possible as the thread is already revolving when laid on the discs, so distortion or damage and breaks are avoided.
Patent DE-4019670-A1 (DE)
Title: Treatment of menopause to protect women from breast cancer - uses pharmaceutical contg. oestrogen and progesterone deriv. chloro:madinone ethanoate
Inventor: ROEMER ERHARD DR MED
IPC: A61K31/57
Filed: 1990-06-22
Abstract: A pharmaceutical for treating the menopause in women contains a mixt. of oestrogen and the progesterone deriv. chloromadinone ethanoate as the gestagen. USE/ADVANTAGE - The pharmaceutical can be used in hormone replacement therapy to protect women from mammary carcinomas and cancer of the endometrium and womb and to suppress the androgenisation (facial hair growth, hair loss and similar) that accompanies the menopause. Chloromadinone ethanoate scarcely influences the metabolism of women and is well tolerated by the body.
Patent DE-4029003-A1 (DE)
Title: Internal reinforcing ring for tyres - gives additional lateral side wall support with low radial stiffness
Inventor: DEBUS KLAUS D DIPL ING
IPC: B60B21/02
Filed: 1990-09-13
Abstract: A tyre is equipped with internal reinforcement for extreme conditions to give virtual widening of the rim. At least one or two flanged rings are mounted inside the tyre to have a zone (A) in contact with the side wall where the dia. is pref. greater than that of the rim flange. The stiffness in the lateral direction is typically 10 times higher than in the radial direction. Lubricants and the use of low friction surfaces reduce the coefficient of friction between the inner liner and the ring to below 0.1. USE/ADVANTAGE - Good tyre performance can be achieved under extreme conditions (fierce braking, impact on kerb, tyre pressure loss) while retaining a low profile and comfortable ride under normal conditions. (7pp Dwg.No.1/2)
Patent DE-4034867-A1 (DE)
Inventor: ERPENBACH HEINZ DIPL CHEM DR
IPC: C07C51/12
Filed: 1990-11-02
Abstract: A continuous process for the simultaneous preparation of acetic acid and acetic anhydride from a starting mixture of methanol and methyl acetate and, if appropriate, dimethyl ether, by reaction with carbon monoxide under anhydrous conditions at temperatures from 150 to 250 DEG C and under increased pressure in a reaction zone using a dissolved catalyst system containing a nickel compound, methyl iodide as promoter, at least one co-promoter such as alkali metal iodide, quaternary phosphonium iodide or quaternary ammonium iodide, and a cocatalyst, is characterised in that the cocatalyst used is a rhodium or iridium compound in a molar ratio of nickel : cocatalyst of 1 : (0.005 to 0.1), a nickel concentration of 0.01 to 0.1, preferably 0.015 to 0.06 mol/l is established in the reaction zone, and is carried out under an increased pressure of 30 to 100 bar.
Patent DE-4042123-A1 (DE)
Title: Coolant circuit with heater for vehicle engine
Inventor: HUMBURG MICHAEL
IPC: F01P3/20
Filed: 1990-12-28
Abstract: A coolant circuit has a coolant-air heat exchanger (4) and a combustion gas-coolant heat exchanger in a heater (2). A by-pass line (8) circumvents the engine (6) and a thermostatic valve (12) controls the return temp. by regulating by bypass flow and/or the coolant flow through the engine. The control range of the thermostatic valve can be varied from outside, pref. by varying the relative positions of its valve elements and valve seats.
Patent DE-4102659-A1 (DE)
Title: Optical multiplex bus system for serial data communication - reduces reception impedance for rapid changeover of blocked or conductive state of LED for receive or transmit mode respectively
Inventor: REICHINGER GERHARD
IPC: H04B10/43
Filed: 1991-01-30
Abstract: The optical bus is star-shaped, with bidirectional optical fibres (11-14) starting from the star coupler (15) to an opto-electronic transceiver (5-8) of each module (1-4), controlled by a microcontroller. Each transceiver has an electric circuit with an LED (DL) at the end of the respective optical fibres. When blocked, the LED is operated as an opto-electronic receiver, while in forward polarisation it forms an electro-optical transmitter. A diode driver circuit is at the input. Upon the latter's change-over between the transmit and reception mode, the input impedance of a reception amplifier circuit is reduced from high to low ohmic impedance. USE/ADVANTAGE - Reduces reception impedance for rapid change of LED state to increase transmission speed while avoiding collisions. Can operate at 5 volts to permit use on motor vehicle.
Patent DE-4108894-A1 (DE)
Title: Loose flange connection for plastics pipe system - rests on support centring ring preventing curvature
Inventor: DOERING ERNST-WERNER DIPL ING
IPC: F16L23/032
Filed: 1991-03-19
Abstract: The support ring can be part of the flange or flange segment. The height of the ring matches the thickness of the collar with seal. The supporting centring ring can be made from any pressure-resistant material. The flange or flange segments can be placed flat against each other 90 deg. to the pipe axis after pretension. The ID of the centring ring can lie flush round the loose flange. The ring can have recesses and holes allowing optical monitoring of the seal and screw. USE/ADVANTAGE - Repairing flange connections without removing existing collar sockets.
Patent DE-4112657-A1 (DE)
Title: Vibrating supply unit for sorting workpieces - has easy adjustment through resetting elements with adjustable spring rigidity
Inventor: FELDPAUSCH HUGO
IPC: B65G27/32
Filed: 1991-04-18
Abstract: The workpiece conveyor tray is connected movably by leaf springs to the support which serves as the counter weight. Each resetting element pref. has two screw springs (1a, 1b) with adjustable free spring length seeated on a core. The core can be set in a frame (8) connected to the support and bent round areas (2) of the free spring ends can be coupled to the workpiece tray. The core pref. has two bolts (5) coupled rotationally secured to each other and having contra-rotating threaded sections (4a, 4b) which each engage in a screw spring of corresponding pitch. USE/ADVANTAGE - Easy adjustment of the spring tension and thus vibration circuit. The screw springs have a long service life.
Patent DE-4115662-A1 (DE)
Title: Multi-processor control unit for road vehicles - has reset generated by identification of fault condition with signal connection via filter units
Inventor: HOG NORBERT DIPL ING
IPC: F02D41/26
Filed: 1991-05-14
Abstract: The control system has at least two processors (12,14) coupled by two buses (20,22) to a common memory (16). Both buses connect with an I/O unit (18) that handles inputs from sensors (42-44) and outputs to output stages (50-52). A power on logic unit (32) connects with filters (28,30) provides start up inputs for the processors. During the processing of the user programme the system watchdog runs continuously and generates resets when required. The filter stages eliminate the possibility of a false reset condition. ADVANTAGE - Improves performance of vehicle control units.