baber/WOPTO huggingface dataset:
Patent DE-3927887-A1 (DE)
Inventor: TIMM VOLKER DR
IPC: H01L23/60
Filed: 1989-08-24
Abstract: In data carriers, particularly portable data carriers such as cheque cards, with integrated circuits, secret data are contained which must not be accessible from the outside. To prevent the integrated circuit in a data carrier from being mechanically exposed and then taken into operation and the signals on the conductor tracks being recorded by means of electron beams, the integrated circuit is covered with a metal layer which is applied in the same manner as the conductor tracks located underneath. Since this metal layer can be removed with a certain effort for the unauthorised investigation of the signals of the integrated circuit, this metal layer itself is preferably used as conductor track in that it is used for supplying various circuit sections with a reference potential. When the metal layer is removed, the integrated circuit and thus the data carrier is then no longer operable. <IMAGE>
Patent DE-3936120-A1 (DE)
Title: Antidazzle equipment for occupants of motor vehicle - uses driver's eye position measurements to resist opaque or semi-transparent screen on windscreen or oncoming headlamp
Inventor: HAG RENE
IPC: B60J3/02
Filed: 1989-10-30
Abstract: The driver's eyes (4) are protected against the headlamps (1) of oncoming vehicles by an anti-dazzle screen (5) positioned on the windscreen by a motorised drive (6) from an electronic controller (7). The control is responsive to signals from sensors (8,9) of the positions of the headlamps and of the driver's eyes respectively, so that the screen is repositioned in step with movements of the driver's head.  Alternatively, a screen built into the headlamp may be adjusted by radio link commands. ADVANTAGE - Efficient automatic device acts only on light liable to dazzle the driver.
Patent DE-3939793-A1 (DE)
Title: Safety device for wood working machines - comprises shoe with gripping saw-tooth edge to dig into workpiece to prevent it recoiling
Inventor: JURISCH KLAUS
IPC: B27G19/02
Filed: 1989-12-01
Abstract: The safety device is for woodworking machines. It prevents injury from timber jumping back from the cutters. A grip shoe (6) is used which has saw-tooth spikes ion the bottom. The shoe is inclined at an acute angle with the surface (15) of the work piece (1). The grip shoe is spring loaded (8) with a limiting device (10) which slides in a slot (17). USE/ADVANTAGE - When the work is pushed throught he machine it makes contact with the grip shoe and in the event of a jump-back the spikes grip into the wood.
Patent DE-3940262-A1 (DE)
Title: Device for closing bags and hoses - in which clip is crimped onto the hose or bag neck by tool contg. tapering groove so that the crimping force required is reduced
Inventor: NIEDECKER HERBERT DIPL ING
IPC: B65B51/04
Filed: 1989-12-06
Abstract: U-shaped clips are crimped onto the bag or tube by a stamping tool acting against a fixed base part. The tool moves in such a way that it presses towards each other, and downward towards the base, the arms of a clip which is supported on the fixed base. A groove in the tool extends in the circumferential direction of the clip and corresponds with the shape of the clip during pressing. The width of this groove is the same as the width of the clip, and its depth is less than the thickness of the clip arms and decreases from the centre outwards. In the case of clips with tapering arms, the groove width corresponds with the reduced clip width. Pref. the base tool (1) contains a trough-shaped recess (2) to receive the clip (3) and to hold it during crimping. Ridges (4) hold the clip in place while it is cut off from a strip of clips by cutting edges (5,6). Thee tool (7) moves in direction (8), and its concave surface (9) contains a groove (10) whose  depth is greatest in the centre (11) and reduces towards the edges. The greatest depth of the groove (10) is less than the thickness of the arms (3a) of the clip (3). USE/ADVANTAGE - Useful in the design of tools for crimping closure clips onto the necks of bags and tubes. The formation of ridges on the outer surface of the clips is avoided and the required crimping force is therefore reduced. The clips are also more easily removed from the crimping tool after pressing.
Patent DE-3941024-A1 (DE)
Title: Hydrostatic drive for lorry - has pump driven by combustion engine and electronic control system to limit power and to regulate fuel consumption
Inventor: GRUEBLER WALTER DIPL ING
IPC: B60K17/28
Filed: 1989-12-12
Abstract: The hydrostatic drive has a hydrostatic pump (5), driven by the vehicle's combustion engine (1), and a hydro-motor arrangement (15) coupled to the vehicle's output drive (11) that lies between the combustion engine and one pair of the vehicles wheels. An electronic or electrical power limited produces a control signal to reduce the power when a selectable max. power is exceeded. An electronic or electrical control unit monitors and controls measured or wanted parameter in order to optimise the control of fuel consumption, to reduce emissions, to reduce noise, to optimise torque or power, to limit slip, and to prevent excessive angular speeds (eg when going downhill). USE/ADVANTAGE - For industrial and commercial vehicles. Cheap. Adequate power at slowest speed.
Patent DE-3942151-A1 (DE)
Inventor: HAYASHI TOSHIYUKI
IPC: H05B44/00
Filed: 1989-12-20
Abstract: A vehicle lamp apparatus comprising a plurality of light emitting members arranged at predetermined intervals in the widthwise direction of a vehicle body, and a control member for turning on the light emitting means in response to the actuation of a brake operation, and turning off the light emitting means in a time division mode in response to the brake release operation.
Patent DE-4001378-A1 (DE)
Title: Flat flame type burner - ignites and partly burns mixture in anti-chamber before passing to combustion chamber
Inventor: RICKE HANS-BENNO DIPL PHYS DR
IPC: F23D11/40
Filed: 1990-01-18
Abstract: The burner is particularly of the flat flame type, for gas or heating oil.  It has a brick (14) widening progressively and a swirl generator (2) for the combustion air and fuel.  This is sufficient to ensure that over a wide output range the emerging flame lies against the brick and the surrounding furnace wall.  Exhaust gas from  the furnace flows into a combustion chamber (8) near the burner axis (A) and mixes with the flame gas. The mixture of air and fuel is ignited and partly burnt in an antechamber (7) before passing into the combustion chamber (8). ADVANTAGE - Low nitrous oxide emission, intensive after-burning, and even temperature distribution in furnace.
Patent DE-4002499-A1 (DE)
Title: Stacking chairs with detachable arm rests - have quick fit connection allowing easy linking of chairs into rows
Inventor: SCHIRMAK KLAUS
IPC: A47C3/04
Filed: 1990-01-29
Abstract: The stacking chair has at least one arm rest (7) which is set on a detachable element (8) which can be fitted on separately. At least one side part (7) of the chair is pref. formed with an engagement recess (10), which can engage with a corresponding engagement part (9) provided on the arm rest element (8). This can be in the form of an expanding tube (15), with an expanding cone (14) which ensures good restraint between the arm  rest and chair. ADVANTAGE - The chairs can be easily stacked and set in rows without the arm rests which can be fitted on subsequently.
Patent DE-4006706-A1 (DE)
Title: Door-catch or fastening mechanism - is for structures of thin wall material and comprises housing contg. flange, insert part, rear end, and operating shaft
Inventor: RAMSAUER DIETER
IPC: E05C3/04
Filed: 1990-03-03
Abstract: The closure (10) fits rotatably in a circular aperture (12) near the edge of a flap, a cover or a lateral facing (14). A tongue (16) engages behind the edge, projection or locating surface (18) of a machine operating housing, a switchgear housing, a ventilation channel or similar. The tongue (16) has a ramp surface (20) which can have one or two slopes. At its front end, the closure has a flange (24) incorporating a slot (26) in which a screwdriver can engage to move the closure around inside the circular aperture (13). The flange (24) evolves into a bearing formation, and one of its locating surfaces has an axial stop in the direction of the tongue. USE - As a closure for machine operating housing, switchgear cabinets, ventialtion channels and the like.
Patent DE-4006744-A1 (DE)
Title: Machine-tool external vibration-damping system - comprises rigid plate with damping units on underside and accommodating machine
Inventor: BRAEUNLICH HORST
IPC: B23Q11/00
Filed: 1990-03-03
Abstract: The machine tool incorporates a damping system to eliminate externally generated vibration and shock-loads. The system comprise a rigid plate (1) with damping units (2) on the underside, their size being  approximately that of the machine tool underside, the machine tool being mounted on the plate. The units can be formed by pressurised fluid and/or gas springs, mechanical springs, and/or elastomer-material, particularly rubber. USE/ADVANTAGE - Vibration damping system for machine tool. No torsion or bending loads in machine tool housing or frame.
Patent DE-4012434-A1 (DE)
Title: Device for drying granular materials, esp. sliced beet - with material conveyed across wire mesh floor by moving vanes while drying medium is passed upward through floor
Inventor: HEYER HEINZ DIPL ING
IPC: F26B17/02
Filed: 1990-04-19
Abstract: The material to be dried rests on a fixed perforated floor and is conveyed forward by vanes which move parallel to this floor. A drying medium passes upwards through the floor from a lower inlet casing to an upper outlet casing. One arrangement includes a vertical shaft to which radial vanes, which are joined together by inner and outer cylindrical rings, are attached and atre driven around by a motor. A material supply system in the form of a hopper with an adjustable outlet is provided above the drying floor, and behind this is an opening in the floor through which the dried material falls to an outlet conveyor below. The equipment may be enclosed in a pressure vessel, such as for example steam is to be used as the drying medium. several drying chambers of this type may be used in a vertical arrangement sharing a common drive shaft. As an alternative, a rectangular drying floor may be used, and the vanes moved linearly by means of chains. The drying floor consists of a fine wire mesh supported on a coarser mesh. USE/ADVANTAGE - This invention is used for drying particulate materials, especially slice beet, turnips, carrots etc. A simply constructed and uncomplicated machine is proposed which can operate without maintenance over long periods. The product is dried evenly and does not tend to block the mechanism and/or overload the  drive motor.
Patent DE-4014293-A1 (DE)
Title: Safety stop for underwater explosive mine - has sprung piston which secures mine in primed state until initiated
Inventor: LIEBHARDT JOSEF
IPC: F42C15/24
Filed: 1990-05-04
Abstract: The safety comprises a piston spring-loaded against water pressure, and displaceably located in the direction of the projectile longitudinal axis. A mass is movable in the same direction under the effect of inertia. The piston (3) is connected to a first and/or second stop (9,10), the first blocking a drive (15,21,22) in the safety position, whilst the second blocks a rotor-thruster (11) carrying a detonator, which is coupled to the drive (22). The drive comprises a mass movable under the effect of a firing acceleration, and which corresponds to a gearwheel connected to a rotary spring. The rotary spring is coupled to the rotor. USE/ADVANTAGE - In military naval operations, to secure a sea mine in the primed state until initiated.
Patent DE-4015634-A1 (DE)
Title: Pair of grips handling edging or surround stones - consists of grip handle which activates pair of right-angled pivoted tongs
Inventor: BREU MICHAEL
IPC: E01C19/52
Filed: 1990-05-15
Abstract: A pair of grips for handling edging or surround slabs consists of two arms (6a,6b) on opposite sides of a common pivot. The arms (6a,6b) are bent at right angles so that their top sections (7a,7b) meet in the centre of the tool and are suspended over two separate spindles (8a,8b). The projecting spindle ends pivot in holes (5a,5b,5a',5b') in the sides of an H-shaped capping plate (3) which is attached to the handle (2), forming an activator (9). USE/ADVANTAGE - As the handle is lifted the two arms close together grasping the stone which is thereby lifted or manoeuvred into position.
Patent DE-4017690-A1 (DE)
Title: Telephone handpiece for car radiotelephone - has alphanumeric keyboard with pivoted cover and supporting display elements on its inside face
Inventor: WALTERS ECKHARD DIPL ING
IPC: H04M1/7243
Filed: 1990-06-01
Abstract: The handpiece incorporates an alphanumeric push-button field which is concealed by a pivoted cover (7) when not in use. Display elements (8) are provided on the inside face of the cover (7). Pref. the pivoted cover lies towards the end of the handpiece incorporating the earpiece and it is hinged about one of its longitudinal edges. The handpiece may also incorporate a modem and/or a card reader. ADVANTAGE - Wider application.
Patent DE-4017801-A1 (DE)
Title: Combination for bonding plastic parts - comprises cyanoacrylate adhesive and 2-hydrocarbyl-substd. opt. 1-hydroxyethyl-substd. imidazoline deriv. as primer
Inventor: NICOLAISEN HEINZ CHRISTIAN
IPC: C09J4/00
Filed: 1990-06-01
Abstract: Combination prod. (I) for bonding synthetic plastic jointing parts contains a cyano-acrylate adhesive (II) and imidazoline deriv(s). of formula (III) as primer. In (III), R1 = H or hydroxyethyl; R2 = aryl, aralkyl or alkyl with 1-17C; R3-R6 = H, 1-4C alkyl or aryl. Also claimed is the primer, dissolved in inert, polar organic solvent which evaporates at room temp. Pref., R1 = H or esp. hydroxyethyl, R2 = Ph or 1-13C alkyl, and R3-R6 = H. Solvents are 3-8C ketones, 1-4C alkanols or (1-4C alkyl) acetates, and the soln. contains 0.001-5 (pref. 0.05-2) wt.% (III). (II) are known cyanoacrylate adhesives. Pref. (III) is 2-phenyl-2-imidazoline (IIIA) and solvent is, e.g. acetone, MEK, MeOH, EtOH, PrOH, BuOH, EtOAc, PrOAc or BuOAc. USE/ADVANTAGE - (III) are useful as primers for bonding joint parts of polyolefin (e.g. PE or PP), fluoro polymer or thermoplastic rubber, including silicone rubber (claimed) also claimed is the bonding process as such, in which first (III) and then (II) is applied to the joint surfaces. Use of (III) as primer gives very strong bonds with (II); the bond strength increases the longer the primer is left in contact with the substrate before (II) is applied (contrast prior-art primers) and only decreases again after several hrs. contact time. (7pp Dwg.No.0/0)
Patent DE-4018800-A1 (DE)
Title: Control system for multi-cylinder vehicle engine - computes changes by monitoring at set points within one working cycle
Inventor: NAGANO MASAMI
IPC: F02D41/34
Filed: 1990-06-12
Abstract: The dynamic- and static conditions in each cylinder are monitored at different points of the working cycle. The measured values are stored and used to compare with subsequent values. This enables the processor control to determine dynamic changes without having to run over several cycles. The processor response is thus rapid w.r.t. performance and emission control. - One processor stage determines the actual points in the working cycle and other stages monitor the engine torque firing angle, input air flow, input fuel flow etc. The actual rate of change of engine speed is determined within the working cycle to compute the actual rate of change of the throttle valve and the ignition etc.
Patent DE-4028614-A1 (DE)
Title: Measuring large currents with electricity meter -  using Hall element in slotin annular ferrite core with main conductor forming current loop
Inventor: SCHEEW PETER
IPC: G01R15/20
Filed: 1990-09-08
Abstract: Measuring large currents with an electricity meter involves using an electronic measurement circuit, an electronic tariff circuit, a measurement value indicator and a conductor connection block mounted in a housing with a base plate. The primary conductor (11) is formed into a current loop to produce max. field strength. Each conductor is fed through a ferrite annular core (12) with a through slot (14) contg. a Hall element (17) which converts the mains voltage into a measurement current and the load current into a magnetic measurement flux density. The Hall voltage measurement includes d.c. filtering. ADVANTAGE - Avoids errors caused by unstable d.c. components.
Patent DE-4031973-A1 (DE)
Title: Dyeing of polyester fibres - using 2-alkanoyl-naphthacene-6,11-quinone derivs.
Inventor: KEIL ALFRED DIPL CHEM DR RER N
IPC: C09B3/58
Filed: 1990-10-09
Abstract: Polyester fibres are dyed by the carrier, thermosol or HT process using naphthacene-6,11-quinone derivs. of formula (I), where R11 = Me or Et; R12 and R14 = H or OH; and R13 = OH or OMe. USE/ADVANTAGE - The process gives intense yellow to red shades with good fastness. In an example, an aq. dispersion of 2-acetyl-5,12-dihydroxy -7-methoxy-naphthacene-6,11-quinone was adjusted to pH 4 with HOAc and used to dye polyester fibres at 130 deg.C. for 30 mins. giving a brilliant scarlet shade.
Patent DE-4033937-A1 (DE)
Title: Seal for gap between concrete blocks - consists of 2 polyethylene@ L=sections with lugs embedded in concrete and with ends welded together into V=section in gap between blocks
Inventor: REMMERTZ HELMUT
IPC: E04B1/68
Filed: 1990-10-25
Abstract: A seal for use between two concrete blocks has a double-L profile and is made of weldable plastics with wall thickness of at least one mm; its lower base part has at least one lug projecting inwards where that base is embedded in the concrete of one block so that at least its top face and lug are incorporated in concrete; the peak of the profile and its upper sides are immediately against the sides of the gap between blocks so that the upper sides are at an angle to the faces of the concrete; the ends of the upper sides are welded together to form the double-L so that the weld lies underneath the outer surfaces of the concrete. The seal is pref. made of high density polyethylene. ADVANTAGE - The seal accommodates thermal changes in the width of the gap being sealed. Similarly it functions also if the concretre gap changes from mechanical loads applied to it. (1/2)
Patent DE-4037621-A1 (DE)
Title: Hybrid digital or analogue fluid flow control valve operation - using electromagnet pulsed at frequencies above max. reciprocation rate of body for analogue mode partial
Inventor: SCHEMMERER MARTIN
IPC: B60H1/00
Filed: 1990-11-27
Abstract: The control valve is operated in either analogue mode or pulsed mode, depending on the size of the desired opening. The magnetic valve has a seating (4) for the body (3) from which two pins (13a, 13b) project into tubular guides (7, 8) in opposite directions. The armature (9) is guided similarly by pins (19a, 19b) in the tubular passages (8, 7'). The cross-section of the opening (5) is smaller in digital operation at the lower frequencies of pulsation of the electromagnet coil (15) than in analogue operation with pulses applied at frequencies higher than the max. switching frequency of the valve. USE/ADVANTAGE - For heating circuit of motor vehicle engine. Interruptions of flow through small openings in purely analogue valves, and pressure pulsations in purely digital valves, are avoided.
Patent DE-4039548-A1 (DE)
Title: Question and answer studying pad
Inventor: MATSUGUCHI TOMIKICHI
IPC: G09B3/04
Filed: 1990-12-11
Abstract: The question and answer pad comprises a first sheet material having a question printed on one principal surface. A re-adhesive layer is formed on the other principal surface. A second sheet material has an answer to the question printed on one principal surface.  The re-adhesive layer is formed on the other principal surface. A group of the first sheets and the second sheets are alternately adhered to each other via the re-adhesive layer to allow the sheets to be repeatedly torn off, stuck to an article, and then readhered to each other again.
Patent DE-4041322-A1 (DE)
Title: Centrifugal chamber for rotors of turbo engines - has rotor-bearing frame on floor of chamber and movable burst protection hood, vacuum sealing
Inventor: THELEN DIETER DR
IPC: F01D25/28
Filed: 1990-12-21
Abstract: The centrifugal chamber is used when balancing rotors. It has a chamber housing (2) which can be closed to be vacuum tight and has a rotor drive motor on one end wall. Its floor (10) carries a mounting for rotor bearing frames and the chamber is enclosed by a burst protection device. An essentially tunnel-shaped chamber hood (11) movable along the chamber floor has an end wall (12) and is vacuum sealed against the fixed wall (3) and chamber floor in the closed position. It acts as a burst protection hood and engages holding devices along its longitudinal edges which prevent it from being raised. USE/ADVANTAGE - Esp. for use when balancing turbo engine rotors following repair. The centrifugal chamber is designed for reduced cost and size and to achieve a high degree of safety.
Patent DE-4103741-A1 (DE)
Title: New beta-keto-ester(s) with sterically-hindered phenol Gps. - useful as thermo-oxidative and/or light stabilisers for organic materials esp. polymers, elastomers, lubricants etc.
Inventor: NESVADBA PETR DR
IPC: C07C69/738
Filed: 1991-02-07
Abstract: Cpds. of formula (I) are claimed R1 = H, 1-8C alkyl, 5-7C cycloalkyl or Ph; R2 = 1-8C alkyl, 5-7C cycloalkyl or Ph; R3 = 1-18C alkyl, O- or S-interrupted 2-18C alkyl, 5-7C cycloalkyl or Ph-(1-40C alkyl). (I) are produced by Claisen condensn. of esters of formula (II) in the presence of a base. Pref. R1 = H or 1-4C alkyl and R2 = 1-4C alkyl; reaction is carried out in a solvent i.e. aliphatic or aromatic hydrocarbon, ether- or polar aprotic-solvent. USE/ADVANTAGE - Useful for stabilising organic material against oxidative, thermal and/or light-induced degradation, esp. natural, semi-synthetic or synthetic polymers or functional liqs., esp. thermoplastic polymers or elastomers, lubricants or hydraulic fluids (claimed); also claimed is (a) a process for stabilising materials by addn. or application of (I) as stabilisers, esp. to thermoplastics, elastomers or functional fluids, esp. lubricants, and (b) stabilised compsns. contg. materials and cpd(s).  (I). used e.g. as antioxidants in functional fluids.  @(11pp Dwg.No.0./0)
Patent DE-4105045-A1 (DE)
Title: Adjustment of metering device on centrifugal spreading machine
Inventor: SCHEUFLER BERND DR ING
IPC: A01C17/00
Filed: 1991-02-19
Abstract: The material is delivered into a bucket (28) which is suspended from a hook (27). It is filled via a chute (13), as well as through the separate opening into the chute (21).     The addn. to the bucket (28) during a trial run over pref. 250 sq.m is weighed. The required setting (11) of the sliders (7) controlling the delivery openings (6) is read from a nomogram (29) attached to the storage hopper (2).