baber/WOPTO huggingface dataset:
Patent DE-3909181-A1 (DE)
Title: Stairway which is for temporary use in the carcass of a building
Inventor: BAUMANN WOLFGANG
IPC: E04G27/00
Filed: 1989-03-21
Abstract: A stairway which is for temporary use in the carcass of a building, in a stairwell (6), and is intended for connecting storeys (2, 4), such that one can gain access to said storeys by foot, is made up of a set of structural elements which can be assembled releaseably, with the result that, in the assembled state, a spiral-staircase-like configuration is obtained. The set of structural elements contains a load-bearing column (8) which, in the use position, passes through the relevant storey (2) in the vertical direction. It further exhibits a plurality of stair elements (9) which can be releaseably fixed on the load-bearing column (8) such that they follow one after the other in the longitudinal direction of the column and which are essentially configured in the form of panels which exhibit, at their inner end, a fastening device (10) for the releaseable fastening on the load-bearing column (8). Finally, there is further provided a plurality of railing parts (11), which can be releaseably fixed on retaining devices (12) arranged on the outer end region of the stair elements (9). <IMAGE>
Patent DE-3909526-A1 (DE)
Inventor: TOSSWILL CHRISTOPHER HALY
IPC: H01J43/24
Filed: 1989-03-22
Abstract: A channel electron multiplier is formed of a glass that includes a lead compound chosen to be effective, in combination with other components of the glass, so as to limit spurious signals to not more than 0.1 per cm<2>sec. A glass composition suitable for forming a channel electron multiplier is also described, the glass consisting essentially of, in weight percent:      SiO2          30-35%      PbO           50-57%      Cs2O          2-10%       SIGMA MgO+CaO+SrO+BaO   0-5%       SIGMA A12O3+ZrO2+TiO2+Nb2O5  0.1-1% wherein the ratio of Si to Pb, expressed as the molar ratio of SiO2 to PbO, is 2.0-2.4 A two section microchannel plate 20 has an input array 22 and an output array 24. Each array 22, 24 includes a multiplicity of channel portions 23, 25. <IMAGE>
Patent DE-3910966-A1 (DE)
Title: Support material coated with enzymes
Inventor: SAUBER KLAUS DR
IPC: C12N11/08
Filed: 1989-04-05
Abstract: The support material consists of acetylcholine esterase and choline oxidase and a copolymer based on vinyl acylate and/or vinyl alcohol units and units of a crosslinker. A material of this type is stable for at least 6 months. It is used for determining choline and acetylcholine, which are detected via the formation of hydrogen peroxide.
Patent DE-3918813-A1 (DE)
Title: Conche, conching method for operation thereof and system with at least one conche of this type
Inventor: KUSTER WERNER
IPC: A23G1/12
Filed: 1989-06-09
Abstract: On a conche (5) there is arranged an outlet aperture (23) at a desired level of the trough and provided with a force-conveying device (12). The said force-conveying device (12) is advantageously operated at a greater conveying capacity than the mean feed rate via the inlet aperture (15). <IMAGE>
Patent DE-3920884-A1 (DE)
Title: Voltage controlled bipolar current source - has output node driven from current source and current sink for difference output
Inventor: MAIER WILLI DIPL ING
IPC: G05F1/56
Filed: 1989-06-26
Abstract: In an adder (AD) a constant voltage, or a voltage derived from it, is added to a bipolar input level (Uo), the added voltage being at least equal to the max. input level. A first  voltage-current converter (SSW1) changes the adder output to a first current (SI1). A second voltage-current converter (SSW2) is coupled in series with the first, and converts the constant voltage, or the derived voltage to a second current (I2). The bioplar current output is derived from between two voltage-current sources (SSW1, SSW2). USE/ADVANTAGE - Analog outputs in automation systems. Common mode rejection increased, and high frequencies suppressed.
Patent DE-3921331-A1 (DE)
Title: Liquid level sensor e.g. for vehicle fuel tanks - has optical conductor deflected according to float height by deflection part shaped according to container characteristics
Inventor: EIBEL MICHAEL
IPC: G01F23/36
Filed: 1989-06-29
Abstract: A liquid level sensor has a float (3) which operates a signal generator in the form of an optical conductor (4) leading from a fixed point via a deflection piece (6) to the float. The conductor is deflected more or less depending on the height of the float and hence the liquid level. The curvature of the deflection piece is matched to the characteristics of the monitored container (1). ADVANTAGE - The sensor is partic. robust and carries no danger of causing explosions.
Patent DE-3921925-A1 (DE)
Title: Corner joints in seals for vehicles - made in PVC profile plus rubber section by cutting mitres between bonded lengths, bonding corners, and welding together unbonded parts
Inventor: CHURCHFIELD VINCENT
IPC: B29C65/48
Filed: 1989-07-04
Abstract: Corner joints for use in seals on vehicles are produced from seals of a profiled thermoplastic substrate with stiffening reinforcement and a rubber sealing section which is bonded on. This bond is interrupted in parts; the mitre cuts for the corners are made in the interrupted areas and are suitably bonded together separately; the non-bonded parts of the substrate and seal are fixed together up to the corners. Prefd. materials are PVC for the profiled substrate and ethylene-propylene-terpolymer or foamed rubber for the sealing section. ADVANTAGE - The method produces corners with high strength bonds which withstand temp. differences.
Patent DE-3922775-A1 (DE)
Inventor: LEVACHER FRIEDRICH KARL DR
IPC: H02G1/02
Filed: 1989-07-11
Abstract: 2.1  Earth wires with light waveguides are known, as are their fittings and installation. It is intended to specify a wire repair method which can be carried out without the conventional use of span collars. This also necessitates a special junction of the wires to the masts. 2.2  The solution is for the defective wire section (2') between two masts (1, 1') to be replaced by a new wire (2''), for which purpose the mechanical joining to the intact wire (2) takes place in each case at the two supporting brackets (8, 8') by means of a tension wire (6) and terminating fittings (3), and the electrical and optical joining takes place by means of a joining fitting (9) and the necessary excess wire lengths. 2.3  Field of application, see 1. <IMAGE>
Patent DE-3929243-A1 (DE)
Title: Shortening fade of ultrasonic pulse transmitter - performing stepless variation of frequency of excitation of piezoelectric transducer beyond resonant frequency for short time
Inventor: RUMP HANNS
IPC: G01S7/524
Filed: 1989-09-02
Abstract: A Piezoelectric ultrasonic transduer (1) is excited into resonan-ce by a transmitter (2) when a starting command (4) is issued by a control unit (5), pref. a microprocessor or microcontroller. If the transmitted pulse attains a predetermined number of oscillations, another electrical connection (3) to the generator (2) varies its frequency so that the transducer (1) is driven significantly out of resonance for a freely selectable short duration. USE/ADVANTAGE - For contactless distance measurement by  ultrasonic echo propagation time. Decay time is shortened without slowing reaction tine to extent that one or more measurement cycles are necessary.
Patent DE-3930723-A1 (DE)
Inventor: ROHRBACHER JOSEF DIPL ING
IPC: H01Q3/02
Filed: 1989-09-14
Abstract: 2.1 In apparatuses for the automatic positioning of satellite antennas, two controlled switches are used to switch the motor on and off and to drive it in the correct direction. In the event of frequent use or manufacturing faults these switches may fail which can lead to defects in the motor if a stop position is reached and the motor can no longer rotate despite the current flowing. The object therefore exists of protecting the motor. 2.2 This object is achieved according to the invention in that, after a switch-off command, a current monitoring circuit is used to test whether the motor is actually switched off. If this is not the case, the motor is then switched off using the second switch and a suitable fault report is displayed. 2.3 Antenna positioning devices for satellite antennas. <IMAGE>
Patent DE-3931506-A1 (DE)
Inventor: BLEIER ROBERT
IPC: G06K7/06
Filed: 1989-09-21
Abstract: A chip card reader comprises a contact support (2) in which are arranged read contact springs (17) and an end position switch in the form of switch contact springs (21, 22) which indicates the operating mode. The read contact-springs contact regions of a chip card (13) inserted in a read position in the chip card reader. In its operating mode in the read position of the card, the end position switch acts approximately perpendicular to the direction of insertion (20) of the card. Hence, in the read position, no component of force is produced which would act in the direction opposite to that of insertion of the card.
Patent DE-3934818-A1 (DE)
Title: Electrical connector for model railways - uses two identical pieces each with conductive strips of unequal length making electrical contact
Inventor: HEYN KLAUS
IPC: A63H19/18
Filed: 1989-10-19
Abstract: Each connector comprises two identical pieces (1) with unequal length arms (3,4). The long arm (3) carries electrically conducting blades (6,7;6',7'), and the short arm (4) carries an interval groove/catch (18) which mates with end (5) of arm (3), forming a spring connector along the length of the arms. Preferably, the conducting blades (6,7;6',7') are of unequal length and consist of spring metal material, and allow the connection of two independent electrical circuits. USE/ADVANTAGE - Electrical connectors for model railway. Good electrical contact over whole length of connector.
Patent DE-3937343-A1 (DE)
Title: Measuring conc. and droplet distribution of suspended gases - involves electrostatic separation, solution, infrared absorption of aerosols, esp. oil, removal of dust at defined intervals
Inventor: KRANNICH STEPHAN DIPL PHYS
IPC: G01N21/35
Filed: 1989-11-09
Abstract: The method of measuring the conc. and droplet size  distribution of substances suspended in gases involves first electrostatically separating the substances whilst measuring the flow-rate. The separated substances are then fed into an absorption-free solvent according to their quantity. The conc. of aerosol substances is determined by infrared  absorption whilst the electrostatically separated dust is removed at defined time intervals and investigated. USE/ADVANTAGE - In high precision, delay-free measurement of oil aerosols in particle size range between 0.1 and 10 microns. Robust, convenient arrangement is simple to use.
Patent DE-3938315-A1 (DE)
Title: Power supply method for facsimile machine - providing separate arrangements for stand-by and operating conditions
Inventor: BOCK GERHARD DIPL ING
IPC: H04N1/32
Filed: 1989-11-17
Abstract: Stand-by power for the copier (GE) is provided by a mains supply (NG), with the additional load during operation supplied by a rechargeable battery (A). The mains supply also charges the battery via charging circuit (LS). Via a control circuit (SS) the condition of the supplies is monitored and indicated on a display (AE), and if the battery is running down due to mains failure the same circuit arranges line disconnection, data security in memory (DS) and power saving. ADVANTAGE - Simple realisation with small power consumption in stand-by mode, power monitoring and data security.
Patent DE-3938423-A1 (DE)
Title: Antistatic finish for photographic material - prepd. using sulpho-alkylated copolymer of maleimide and olefin] styrene] or alpha-methyl-styrene]
Inventor: NITTEL FRITZ DR
IPC: G03C1/89
Filed: 1989-11-18
Abstract: Antistatic finishing of photographic material is carried out with opt. hydrolysed copolymers (I) and/or (II) of N-sulphoalkylmaleimide and an olefin, styrene or alpha-methylstyrene.  In (I) M = a cationic gp.; R = a divalent 1-10C aliphatic gp.; R1 = H or Me; R2 = H, 3-6C alkyl or phenyl; x and y = molar  fractions of the monomers, with x:y = 1:4 to 1.5:1. USE/ADVANTAGE - (I) and/or (II) are claimed for use in an antistatic coat on the back of a photographic material with Ag halide emulsion coat(s); esp. for paper base coated with polyethylene on both sides and having an antistatic coat contg. a polymer latex. (I) and (II) give an excellent antistatic finish.  They form a solid but elastic and mechanically extremely stable film which eliminates the need for additional binders.
Patent DE-3942330-A1 (DE)
Inventor: LUTTER HEINZ-DIETER DR
IPC: C08G18/48
Filed: 1989-12-21
Abstract: The invention relates to a process for the production of flexible, soft polyurethane foams having viscoelastic, structure borne soundproofing properties in a temperature range of from -20 DEG C to +80 DEG C, by reacting     a) a polyoxyalkylene-polyol mixture containing   ai) a block polyoxypropylene-polyoxyethylene-polyol mixture having a hydroxyl number of from 14 to 65 and containing from 2 to 9 % by weight, based on the weight of the polyoxypropylene units, of terminally bonded ethylene oxide units, and prepared by anionic polymerisation at elevated temperature of 1,2-propylene oxide onto an initiator molecule mixture having a mean functionality of from 2.3 to 2.8 comprising water and glycerol and/or trimethylolpropane, and polymerisation of ethylene oxide onto the resultant polyoxypropylene adduct, and aii) at least one difunctional and/or trifunctional polyoxypropylene-polyoxyethylene-polyol containing from 60 to 85 % by weight, based on the total weight of polymerised alkylene oxide units, of oxyethylene units, and having a hydroxyl number of from 20 to 80,  and   b) optionally low-molecular-weight chain extenders with c) organic and/or modified organic polyisocyanates, in the presence of   d) catalysts,   e) blowing agents, preferably water, and optionally   f) assistants and/or additives, and to the polyoxyalkylene-polyol mixtures (a) which can be used for this purpose.
Patent DE-4002275-A1 (DE)
Title: Fuel pump housing with inlet and outlet - mounted in fuel tank with L-shaped fluoro-elastomeric ring securing casing pump
Inventor: TALASKI EDWARD JEROME
IPC: F02B77/13
Filed: 1990-01-26
Abstract: A fuel pump housing (50) with an inlet (51) and an outlet (52) is mounted inside the fuel tank (20) of a motor vehicle on a tube (22) within a support casing (24,28). Two L-shaped rings (60) secure the pump inside this casing. The pref. material for the rings is a fluoro-elastomer or a fluoro-silicone material.
Patent DE-4009644-A1 (DE)
Title: Medical light treatment instrument for acupuncture points - generates magnetic field penetrating transparent crystal in beam path from light source
Inventor: KLOSTERMANN HORST
IPC: A61N5/06
Filed: 1990-03-26
Abstract: The transparent crystal (10) is of quartz, pref. a rock crystal, and worked to a point.  The magnetic field is produced by a permanent magnet (6), pref. circular. The crystal is flexibly mounted, pref. by a rubber ring (8). The light source (2) is an incardescent lamp, a LED or laser.  A transparent coloured element (4), e.g. coloured glass, plastics material or jewel, can be introduced in the beam path in-front of the crystal. USE/ADVANTAGE - Can be combined with colour or precious stone therapy. No piercing of skin as with conventional acupuncture, therefore easier for patient with no risk of infection.
Patent DE-4010343-A1 (DE)
Title: Switched coupling of battery pack to mains - is made using thyristors coupled to microcomputer regulator module
Inventor: KRAEMER KLAUS-G DIPL ING
IPC: H02J7/34
Filed: 1990-03-29
Abstract: A battery power pack (5) of the type used to power a vehicle is coupled to the mains (6) via a bias resistor (1) with a pair of thyristors (2,3) in parallel. A regulator (4) measures mains voltage, converter current and battery voltage and temperative. The regulator is based around a microprocessor and determines the switching points of the thyristor stages.  The energy flow into and out of the battery is determined based upon mains supply in order to achieve efficient operation. ADVANTAGE - Battery, energy management provides, efficient operation.
Patent DE-4016106-A1 (DE)
Title: Telephone set for hostile environment - uses handset to cover pushbutton keys, with fitting into shaped recess
Inventor: SCHWIGAT FALK
IPC: H04M1/18
Filed: 1990-05-18
Abstract: The telephone handset comprises a housing (2) supporting a push-button keyboard (3) and a separate handpiece (4) coupled to the handset via a telephone flex (5).  The surface of the handset housing (2) supporting the push-button keyboard (3)  has at least one recess for receiving the handpiece (4), which is used for at least partially covering the push-button keys. Pref. the recess is matched to the shape of the handpiece (4), with two partial recess zones which are cornically tapered in opposition to one another. USE - For use in aggressive area onboard oil rig, in underground mine, or tunnel etc.
Patent DE-4021113-A1 (DE)
Inventor: MECKEL WALTER DIPL CHEM DR
IPC: C08G18/12
Filed: 1990-07-03
Abstract: Transparent adhesives containing isocyanate groups and based on at least one polyol and at least one isocyanate having urea groups are suitable in particular for bonding films.
Patent DE-4022577-A1 (DE)
Title: Coating sheet of plastics with synthetic resin - by passing sheet around roller with porous surface
Inventor: BRUESSEL RICHARD DIPL ING
IPC: B05C11/04
Filed: 1990-07-16
Abstract: The sheet (10) of plastics film is coated with synthetic resin (12) which is directed by a blade (4) on to the plastics sheet (10) as it passes around a rotating roller (1). The edge of the blade (4) is held at a distance (6) from the surface of the sheet (10) to control the thickness of the coating. The roller (1) has a porous surface (11) which allows air, supplied to the interior of the roller, to flow outwards and lift the sheet (10) clear of the surface of the roller (1) and to prevent the sheet from sticking to the roller. USE - Coating plastics sheet with synthetic resin.
Patent DE-4023332-A1 (DE)
Title: Differential gear with support -  is mounted in housing with toothed wheel drive, with two coaxial axle wheels, and compensating wheels
Inventor: AMBORN PETER DR
IPC: B60K17/346
Filed: 1990-07-23
Abstract: The differential gear has a differential support rotating in a housing driven by a drive toothed wheel. Two coaxial axle shaft wheels (109) rotate in the differential support in which are eccentrically mounted compensating wheels (113). The compensating wheels (113) engage partly with the two axle-shaft wheels (109) and together. The axle shaft wheels (111,112) have different teeth-diameter for unequal torque distribution. The same tooth insertion length of the two axle shaft wheels (111,112), causes the compensating wheels (113) engaging with the smaller of the axle shaft wheels (11) to have a larger diameter. The teeth engage between the compensating wheels (113,144) near the axial extension of the smaller of the axial shaft wheels (11). USE/ADVANTAGE - The compact differential gear has even tooth-loads on the compensating wheels, and therefore even wear.
Patent DE-4023693-A1 (DE)
Title: Signal or measuring display with electroluminescent illumination - uses contoured display electrode in conjunction with simple flat construction
Inventor: MOSER HELMUT
IPC: G01D11/28
Filed: 1990-07-26
Abstract: The electrode (4) is etched onto the conductor plate (1), the contour conforming to the desired character shape. A second electrode forms a flat covering layer. Pref. display driver circuitry (7) controls the display and provides current/conducter paths. A dielectric layer (3) provides a further transparent moisture protective covering of either foil or glass. USE/ADVANTAGE - Display devices for signals or instruments esp.  in vehicles, airplanes. Simple and flat construction.
Patent DE-4023807-A1 (DE)
Title: Flexible shelf system for files - has frame and lattice for file carriers made of plastic material
Inventor: MAASER ARNFRIED
IPC: A47B96/06
Filed: 1990-07-24
Abstract: An office with a writing desk (23) has at least one wall covered by a lattice structure (16) inside a frame (17) which carries a light fitting (18) and three carriers for files (26).  The carriers have hooks at the top and bottom end to fit over the lattice rods. The parts (17,18) and the carriers are made of metal, wood or preferably of acrylic plastics. ADVANTAGE - This creates a flexible and adaptable space saving deposition system for files.
Patent DE-4024046-A1 (DE)
Title: Speed control for brushless DC motor-driven fan - adjusts stator power supply in response to operational amplifier switching by variable resistance in air stream
Inventor: REINHARDT WILHELM
IPC: G05D23/24
Filed: 1990-07-28
Abstract: The delta-connected stator winding (L1-L3) of the motor is fed from a commutation circuit (1) supplied from the emitter (E) of a semiconductor device (6), esp. a Darlington transistor, whose base (B) is driven by an operational amplifier (12) via a Zener diode (11). - A temp. -dependent resistance (15) in the air stream influences the switching state of the op.amp. (12) and thereby the amplitude of the commutation circuit's input voltage and current.
Patent DE-4029404-A1 (DE)
Title: Windscreen wiper with two wiper arm tension springs -  has connector element, releasably coupled between wiper arm and tension springs
Inventor: BAUER KURT
IPC: B60S1/34
Filed: 1990-09-17
Abstract: The wiper is esp. for a vehicle windscreen wiper system, and has two tension springs (14, 16). These are fixed via a connector element (24) to the wiper arm (10). Releasable, cooperating couplings joins the connector element to both the springs and the wiper arm. USE/ADVANTAGE - Vehicle windscreen wiper with simpler fixture of the connector element to the wiper arm.
Patent DE-4031436-A1 (DE)
Title: Laminar construction heat exchanger - comprises stack of plates welded together in pairs to form flow tubes, held in position by outer slotted plates and channel sections
Inventor: KRAUSE EBERHARD DIPL ING
IPC: F28D9/00
Filed: 1990-10-04
Abstract: A laminar heat exchanger consists of plates with regular spaced embossed features; these plates are built up into pairs with plane edges and the pairs are fillet-welded together into stacks in which the intermediate gaps lie at an angle to each other, the welded pairs forming tubes. The structure has slotted plates at the longer edges; the distance between adjacent slots is the depth of embossing of one pair of plates plus two thicknesses of the plates; the teeth between slots fit between the individual pairs; channel sections extend along the edge of the stack which are rigidly bonded to a frame, the corners of which are rigidly bonded by angle sections. The structure also includes pref. silicone-covered foamed glass components. The plates (10) and their embossed features (11) are arranged in mirror-image pairs welded together along the edges (12) to form tubes (14) and hollow intermediate spaces. The pairs of plates made into a stack are held in position by slotted plates (20) along the length and on both sides. These (20) are channel section in shape with unequal sides, one of which has the slotted edge. They fit into the welded tube ends of the system and with silicone seals between. They (20) are also welded to two other channel sections (30) to produce the framework. ADVANTAGE - The design has corner connections which are easily made and fitted. They hold the individual plates in position durably and also provide safe seals in operation. (1/1)