baber/WOPTO huggingface dataset:
Patent DE-3800396-A1 (DE)
Title: Circuit arrangement for programming a read-only memory which can be written repeatedly
Inventor: SCHEMMEL HANS-ROBERT DIPL ING
IPC: G11C16/10
Filed: 1988-01-09
Abstract: The described circuit arrangement for programming a read-only memory (SP) which can be written repeatedly contains a programming stage and a control unit. In the case that the programming voltage of the ROM (SP) is five volts, the functions of the programming stage and the control unit can be taken over by a microprocessor (MP). To increase the useful life of the arrangement, compared to the case in which the ROM (SP) has only as many memory positions as are required to store the largest set of data to be stored, a ROM (SP) which has more than twice as many memory positions is used. Before each new programming, the control unit (MP) starts a search to determine the addresses of the ROM (SP) at which data is stored. The new data is then stored, using the programming unit (MP), at systematically ordered addresses which were not identified by the search. The old data is deleted in the same pass. <IMAGE>
Patent DE-3807954-A1 (DE)
Title: Damping element
Inventor: NEUWALD H-PETER
IPC: B60T8/00
Filed: 1988-03-10
Abstract: In order to damp the pressure oscillations which occur in hydraulic systems, e.g. hydraulic clutch systems or anti-lock systems of motor vehicles, a damping element is inserted into the pressure line. Arranged in the bore of the damping element are labyrinth discs 3 which, together with the parts adjacent to them, form pressure spaces 4 which are connected to one another via eccentrically arranged axial bores 5. <IMAGE>
Patent DE-3807965-A1 (DE)
Title: Pump nozzle
Inventor: SCHER UWE DIPL ING
IPC: F02M45/06
Filed: 1988-03-10
Abstract: A pump nozzle (1) for a fuel injection device, especially of diesel internal combustion engines with direct fuel injection, is described, which has a pump piston (9), which can be driven by at least one drive (8, 13) and generates the injection pressure, the pump working chamber (17) of which can be connected by way of a fuel pressure line (24) to a pressure admission chamber (25), which is assigned to a nozzle needle (26), closing the spray apertures (31) and loaded by a closing spring (27). In order to divide the injection in a pump nozzle of the said type into a pre-injection of small quantity and a main injection succeeding this at an interval for the purpose of reducing the combustion noise, it is proposed that means be provided for briefly reducing the pressure generated in the pump working chamber (17) below the opening pressure of the nozzle needle (26) during the pressure stroke of the pump piston (9). At the same time, it is proposed that the timing and/or the duration of the pressure reduction be controllable as a function of the operating state and that the pressure reduction be achieved by briefly connecting the pump working chamber (17) to a pressure relief chamber (37). <IMAGE>
Patent DE-3810557-A1 (DE)
Inventor: FUKAE KENSUKE
IPC: G03G21/18
Filed: 1988-03-29
Abstract: A device for removing residual particles from a photoconductive member comprises a fur brush (12) in contact with the photoconductive member (110), a metal roller (14) in contact with the fur brush (12), a scraper blade (16) in contact with the metal roller (14), and a discharging device 114 downstream of the brushing apparatus. The fur brush (12) is maintained at a first biasing voltage, eg +50V, while the metal roller (14) is maintained at a second biasing voltage which is of the same polarity but greater in magnitude than the first biasing voltage, eg +150V. The fur brush (12) attracts residual particles from the photoconductive member (110) while the metal roller (14) attracts residual particles from the fur brush (12). The scraper blade (16) scrapes the residual particles from the metal roller, the particles falling into a conveying auger (20) for recycling. <IMAGE>
Patent DE-3811227-A1 (DE)
Inventor: VOGT ROLF DIPL ING
IPC: F16J15/40
Filed: 1988-04-02
Abstract: A ferrofluid seal, in which the gap (3) containing the ferrofluid extends essentially in the radial direction and is bounded in the axial direction by means of the two relatively rotatable sealing rings (1, 2). The gap has an axial depth which is of such small size that the retaining force of the magnetic field exerted on the ferrofluid located in the gap (3) exceeds the centrifugal force occurring during correct use by at least 20 times. <IMAGE>
Patent DE-3811421-A1 (DE)
Title: Method for closing tubular packaging sheaths filled with a viscous filling material
Inventor: NIEDECKER HERBERT DIPL ING
IPC: B65B9/12
Filed: 1988-04-05
Abstract: When closing a tubular packaging sheath which is filled with a viscous filling material, in particular sealing compounds, and which has been filled taut counter to the braking force of a skin brake from a tubular supply situated on a filling pipe, in conventional closing by constricting the filling material by means of recoil scissors there is the risk that the packaging sheath material is damaged and, as a result, air and moisture can get in and harden the filling material. This risk is eliminated by virtue of the fact that after the filling process has ended the packaging sheath is pulled sufficiently far away from the filling pipe that by means of negative pressure a constriction of the packaging sheath is formed in front of the end of the filling pipe where it is conventionally closed. <IMAGE>
Patent DE-3816276-A1 (DE)
Inventor: PALSON RICHARD CHARLES JULIUS
IPC: A61M15/00
Filed: 1988-05-12
Abstract: A device for dispensing an aerosol from an aerosol module A includes a cocking device comprising lever 36 and spring 60 for readying it for release of the pressurized aerosol, a sear 64 for retaining the cocking device in a non-operative position following readying and a vane 79 operable by inhalation on the part of a user to disable the sear to thus release the cocking device to effect expulsion of aerosol from the aerosol module. <IMAGE>
Patent DE-3818504-A1 (DE)
Inventor: SIGMUND HERMANN
IPC: H01L21/223
Filed: 1988-05-31
Abstract: In a process for crystallization of thin semiconductor layers on a substrate material, a melt with a temperature profile is produced in the surface layer of the substrate. The temperature profile has an ''undercooled'' region essentially symmetrical in relation to its centre with a lateral dimension equal to the thickness of the melt. The melt in the surface layer of the substrate material is preferably produced by irradiation with a laser beam in the TEM01 or TEM01* oscillating mode. The process is particularly suitable for crystallization of single crystal silicon regions on silicon-on-insulator (SOI) substrates.
Patent DE-3818657-A1 (DE)
Title: Stable aqueous suspension of silicates which are insoluble in water and capable of binding calcium ions, and the use thereof for producing detergents and cleaners
Inventor: DIEHL MANFRED DR
IPC: C09K23/42
Filed: 1988-06-01
Abstract: Stable, pumpable aqueous suspension of a silicate which is insoluble in water and is capable of binding calcium ions and which contains, based on the total weight of the aqueous suspension,   a) as silicate capable of binding calcium, 0.5 to 80 per cent by weight of a finely divided, synthetic compound which contains bound water, is insoluble in water and has the general formula  (Cat2/nO)x.Me2O3.(SiO2)y in which Cat is a cation which has n charges and can exchange with calcium, x is a number from 0.7 to 1.5, Me is boron or aluminium and y is a number from 0.8 to 6, and b) as dispersant component 0.5 to 6 per cent by weight of a mixture of at least two oxo alcohol ethoxylates of the formula II  R-(OCH2CH2)n-OH, where R = C10-C15-alkyl with a maximum degree of branching of 25%, i.e. a maximum of 25% of the fatty alcohol ethoxylate has a single methyl branch,     n = 3-5.5 mol of EO for component 1,   n = 5.75-7 mol of EO for component 2.     The suspension can be used to produce detergent and cleaning powders.
Patent DE-3819543-A1 (DE)
Title: Device for holding down boot lids
Inventor: SCHAAL GERHARD
IPC: B60R5/00
Filed: 1988-06-08
Abstract: A device for holding down boot lids pivotable about a horizontal axis contains a weight body, on which an anchoring means is provided. The boot lid can thereby be held down relative to the body without further connections.
Patent DE-3822355-A1 (DE)
Title: DPCM coder for high data rates
Inventor: MATTHIESEN FRED DIPL ING
IPC: H03M3/04
Filed: 1988-07-01
Abstract: A DPCM coder having a balanced quantisation characteristic, in the case of which coder a quantiser 6 is fed only the magnitudes of the estimated value errors  DELTA s to be quantised. To this end, two subtractors 2, 3 and a changeover switch 4 are connected upstream of the quantiser, which changeover switch 4 is controlled by the mathematical sign bit of the estimated value error, so that the quantisation input is in each case fed only the magnitude of the estimated value error  DELTA s. The output values of the quantiser have the mathematical sign bit added to them and a 2's complement code is generated from this, which is used to represent numbers in the DPCM coder. <IMAGE>
Patent DE-3836775-A1 (DE)
Inventor: GAEHRS HANS JASPER DR
IPC: C02F3/26
Filed: 1988-10-28
Abstract: In a mobile device (ship) geared for oxygenating waters, with a float which floats on the water and on which an oxygen supply unit is located which is connected to oxygenators and which achieves a high oxygen utilisation and oxygenation performance both when moving and at a standstill, without extensive ship superstructures or lateral attachments or outlet depth monitors being required for this purpose, the oxygenators (16) consist according to the invention of tube profiles and/or channel profiles (17, 18) which are arranged at the bottom (19) of the float (11), the longitudinal axes (10 and 21, respectively) of the float (11) and profiles (17, 18) pointing in the same direction, preferably parallel to one another (Fig. 1). <IMAGE>
Patent DE-3843035-A1 (DE)
Inventor: MAENNER OTTO
IPC: B29C45/28
Filed: 1988-12-21
Abstract: A valve which serves to admit hardenable metallic, plastic or other material into the die of a molding machine has a housing with a centrally located passage for a reciprocable needle-like valving element, an inlet for hardenable material at one side and adjacent one end of the passage, an outlet which is coaxial with the other end of the passage, an eccentric chamber disposed at the one side of the passage and communicating with the inlet, and an elongated gap which establishes communication between the chamber and the passage. The valving element is movable between an extended position in which it seals the gap from the outlet and a retracted position in which the gap admits hardenable material into the passage so that the admitted material can flow toward and through the outlet. The housing surrounds the valving element in the region of the gap along an arc of more than 180 DEG .
Patent DE-3908462-A1 (DE)
Title: Spinning machine with bobbin changers
Inventor: STAHLECKER FRITZ
IPC: D01H9/04
Filed: 1989-03-15
Abstract: In a spinning machine with a multiplicity of spinning stations arranged next to one another and with movable bobbin changers, there are provided for one side of the machine two bobbin changers which are each movable over half the machine length and each of which is assigned its own tube-loading station.
Patent DE-3909092-A1 (DE)
Inventor: BOSSE FRANK DIPL ING
IPC: B65H45/08
Filed: 1989-03-20
Abstract: According to a method for manufacturing webs from thermoplastic material, preferably for manufacturing high-strength fabric, the webs are folded at least singly. In order to manufacture at least singly folded stretched webs which behave like single-strand webs both during winding of the reels and during weaving, the webs are folded on themselves before their winding onto the reel intended for further processing. 
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Patent DE-3911042-A1 (DE)
Title: Asymmetrical screw device
Inventor: MATSUSHIMA RYOTARO
IPC: F16B33/02
Filed: 1989-04-05
Abstract: In order to prevent the loosening of screws due to bending of the screw thread during tightening, the invention provides an asymmetrical screw device which is distinguished in that, upon the combination of a pair comprising a male or external thread and a female or internal thread of the same nominal diameter, but having mutually different bending strengths in the thread region, the gap between the flanks of the screw thread of external and internal threads is such that it increases progressively in the direction of the side with lower bending force. Thus, deformation of the thread during tightening results in punctiform abutment of the thread flanks becoming large-surface-area abutment, and the retaining forces are markedly increased. <IMAGE>
Patent DE-3911903-A1 (DE)
Title: Displacement pump for liq. - uses C=shaped pumping member performing orbiting motion inside C=shaped chamber
Inventor: KEMMNER ULRICH DIPL ING
IPC: F04C2/04
Filed: 1989-04-12
Abstract: The displacement pump is for delivery of liqs.  The walls (92,94 and 98,100) of the delivery member (48) and the delivery chamber (96) each take the form of a semicircular ring. The sum of the inner (122) and outer (124) distances between the walls along a radius (15) to the pump axis corresponds to the dia. (110) of the circle described by the movement of the delivery member. USE/ADVANTAGE - Displacement pump in which both the delivery member and the delivery chamber have profiles which are simple to mfr.
Patent DE-3912331-A1 (DE)
Title: Nozzle for hypersonic turbo-ram-jet engine
Inventor: ENDERLE HEINRICH
IPC: F02K1/60
Filed: 1989-04-14
Abstract: The thrust nozzle for an aircraft equipped with a combined turbo-ram-jet engine has a cross-section adjustable between top and bottom primary and secondary shutters, sliding along parallel walls of a square-section nozzle housing to form sealing flaps.  The primary shutters are hinged on the housing at the upstream end, and the secondary ones are hinged on them at the sides away from the gas flow, and retract flush into them. The turbine and ram-jet sections extend in the axial direction one above the other, their outlets (8,19) ending in rectangular cross-sections.  A partition (14) between the outlets extends downstream as far as the narrowest portion (18) of the nozzle (11).  The shutters on either side can be brought to bear against its downstream edge where the primary (12a,13a) and secondary shutters (12b,13b) join, forming a smooth flow surface.
Patent DE-3915170-A1 (DE)
Inventor: SEXTL GERHARD DR
IPC: C04B38/00
Filed: 1989-05-10
Abstract: Moulding, preferably sheet-like, for use as thermal insulation, consisting of  a) a finely divided, pulverulent or fibrous substance,  b) a microporous covering and  c) a gas-tight and water-tight metal-free covering. The moulding is produced by optionally drying the pulverulent or fibrous substance, optionally introducing it into a microporous covering, optionally pressing it and then optionally drying it. The pulverulent substance with the microporous covering is then introduced into a gas-tight and water-tight, metal-free covering. This gas-tight and water-tight covering is optionally evacuated and closed.
Patent DE-3920220-A1 (DE)
Inventor: KAGERBAUER GOTTFRIED
IPC: H04H20/00
Filed: 1989-06-21
Abstract: In the radio data system (RDS), digital data which contain, among other things, a list of alternative frequencies (AF) with the same programme, from which the receiver can select a different receiving frequency when the receiving conditions deteriorate due to a change in location, are inaudibly transmitted together with the radio programme. However, the transmission of a complete AF list from the transmitter to the receiver can take up to 45 seconds and longer. To be able to switch without delay and inaudibly to alternative frequencies when the stored frequency of the master transmitter is not suitable for reception during a spontaneous programme call-up in different transmitting areas, the programme memories of the receiver should immediately provide a limited selection of suitable AFs. For this purpose, the memory content of this programme memory is empirically built up by automatically transferring alternative frequencies of the programmes radiated with the same PI code in the course of time from other memories and/or memory levels into the programme memories when the frequencies received during an operational or routine tuning of the receiver are confirmed as RDS transmitter frequencies having adequate quality of reception. <IMAGE>
Patent DE-3920952-A1 (DE)
Title: Articulated omnibus providing passenger through-access - with concertina like connection which extends below floor of connecting platform
Inventor: KRAUSE FRITZ DIPL ING
IPC: B62D47/02
Filed: 1989-06-27
Abstract: An articulated omnibus has the frames of the front (1) and rear (2) parts connected by a joint (10) which enables one part to swing relative to the other part about a vertical axis. This joint is covered by a platform (6) to permit passengers to walk from one part of the vehicle to the other part. The space between the front (1) and rear (2) parts is enclosed in a concertina like housing (3). The side walls of  this housing (3) extend below the level of the platform (6), so that its width is not reduced by the turned in lower parts of the housing (3). USE - Articulated omnibuses.
Patent DE-3923327-A1 (DE)
Inventor: ZUCKER FRIEDHELM
IPC: G11B11/105
Filed: 1989-07-14
Abstract: An improved cooling device for cooling the magnetic head (M) of a magneto-optical disc player includes a plurality of arcuate ribs (R) formed as portions of concentric circles and having centers coincident with the axis of rotation of the disc player. The reading/recording head (M) is arranged between the ribs. The rotation of the disc in the proximity of the cooling device creates airflow between the ribs and serves to cool the magnetic head.
Patent DE-3926798-A1 (DE)
Title: Large silo with main chamber and central container with upper inlets - has max. and min. indicator units in outer inlet chamber with separate ventilated base
Inventor: KLOCKENBUSCH HEINZ DIPL ING
IPC: B01F33/40
Filed: 1989-08-14
Abstract: The large silo of circular cross-section for loose grain has a central container (7) divided by an upright partition (8) into an outer annular inlet chamber (9) and a central mixing chamber (10) which projects vertically (H) over the upper end (9a) of the outer annular inlet chamber (9) whereby the maximum and minimum indicator units (16,17) are mounted in the inlet chamber. This inlet chamber has at its upper end (9a) the inlet openings (12) whilst at its base area (11a) it has material overflow openings (18) leading to the central mixing chamber (10). The base (11a) of the annular inlet chamber (9) and the base (11b) of the central mixing chamber are provided with separate independently controllable ventilation devices (20,21). USE/ADVANTAGE - Storage silo with greater versatility since the material can be withdrawn zone-wise and discontinuously from the main silo chamber.
Patent DE-3930426-A1 (DE)
Title: Frequency discriminator for radar transmitter has delay line and reference line, and uses reflections from detectors to extend linear range
Inventor: SKIDMORE D S
IPC: G01S7/282
Filed: 1989-09-12
Abstract: The device has delay and reference lines via which components of a HF signal produced by a decoupler are passed and an arrangement for separating each component into a signal for each of two detectors that compare combinations of components. A leveling device receives a signal from the detectors with its input power held constant. An absorber absorbs noise radiation and reflections from the detectors are used to extend the linear range.
Patent DE-3932152-A1 (DE)
Inventor: ROESSLER KURT
IPC: B02C18/18
Filed: 1989-09-22
Abstract: The invention relates to a device for comminuting commercial or industrial waste, in particular for comminuting paper, wood, plastic and the like, having a receptacle which has a material filling space and a material discharge area with discharge opening for the material for comminuting and having a comminuting mechanism which is arranged in the receptacle and comprises a comminuting tool which can be made to rotate by means of a drive motor. In order to provide, in particular with a reduced outlay in terms of production and construction, a comminuting device with which the material for comminuting can be effectively comminuted to a predetermined degree, the comminuting mechanism comprises at least two essentially coaxially arranged comminuting tools 1, 3, one of which can be made to rotate by means of the drive motor and the other of which is, in contrast, stationary or arranged so as to rotate at a lower speed of rotation during a comminuting process. Furthermore, one of the comminuting tools has classifying shaped recesses 7 open towards the other comminuting tool. In contrast, the other comminuting tool has pocket recesses 5, 6 which can be connected at least to the classifying shape recesses 7, one pocket recess 5 being associated with the material filling space and the other pocket recess 6 being associated with the material discharge area. <IMAGE>
Patent DE-3936479-A1 (DE)
Title: Metallic and ceramic substrate coating method - using powder material applied to surface in liq. medium and melted by laser beam
Inventor: LINK GUENTER
IPC: B23K26/32
Filed: 1989-11-02
Abstract: Surface coating uses a ligand/paste powder mixture which is applied to the substrate and thermally treated by a laser beam to melt the metal/alloy content of the mixt. The hard material is carbide, nitride, boride and oxide. A  hurding agent, either organic or metalorganic is added in an organic or aq. soln. to form a solution, emulsion or  dispersant. The binder to hard material is 2-200%, pref. 5-20%. The hard material is chosen such that the viscosity in solution is adapted to the application. USE/ADVANTAGE - Coating metallic and ceramic substrates, e.g.  tools and tube surfaces. Is commercial, economic method of coating to a controlled thickness. Many types of additives can be added to the mixt. during the process.
Patent DE-3936735-A1 (DE)
Inventor: SCHAEFF HANS
IPC: B60T1/08
Filed: 1989-11-04
Abstract: Brake power converter for trucks, buses, trailers, semi-trailers and passenger cars as slow acting brake with oil as working fluid and an oil cooling device on which one or more high pressure piston pumps with feed rate control down to zero feed are constantly driven by the vehicle proportional to the speed of travel and in braking operation a flow of oil is compressed at a high pressure of between approximately 300 and 900 bar, then released and thereby heated, whereupon the heated flow of oil is re-cooled in the oil cooling device. 
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Patent DE-3937780-A1 (DE)
Title: Equipment for height measurement and tracking of workpieces - comprises a cross slide and arm with sensor and a column fixed to a base plate
Inventor: NIETZ REINHARD
IPC: G01B5/008
Filed: 1989-11-14
Abstract: Measuring equipment for height measurement and tracing, partic. of 3-dimensional workpieces, consists of an arrangement of cross slide and arm, with sensor, on a column fixed to a base plate. The base plate is cast from a mixt. of a binder and a filler. The binder is a polymer material e.g. epoxy resin, polyester resin, or cement paste and the filler is a mineral material. ADVANTAGE - Low wt., adequate rigidity and thermal stability, with resistance to aggressive media.