baber/WOPTO huggingface dataset:
Patent DE-3927398-A1 (DE)
Title: Granulating sodium perborate mono:hydrate - by compacting dry with alkali or alkaline earth salt and comminuting used in granular washing and cleaning compsns.
Inventor: BAUER VOLKER DR
IPC: C11D3/39
Filed: 1989-08-19
Abstract: In granulation of NaBO3.H2O (I), (I) is compacted dry with addn. of alkali(ne earth) salts, then required deg. of comminution. Pref. the mixt. of (I) and salt is compacted between rollers, followed by breaking up to the required size and rounding off in pref. appts. Grains of unwanted size are removed by sieving and recycled to the prepn. The salt is 0.2-30 (0.5-10) wt.% of Na.4H2O, Na2CO3.10H2O (pref.), Na2CO3 (pref.), Na2SO4 or Na Al silicate. USE/ADVANTAGE - Abrasion-resistant prod. with high bulk wt. and high rate of dissolution is obtd. (I) is used in bleaching, washing and disinfecting compsns. Use in granular washing and cleaning compsns. is claimed.
Patent DE-3928948-A1 (DE)
Inventor: NAKAHARA TOSHIAKI
IPC: G03G9/08
Filed: 1989-08-31
Abstract: A developer for developing electrostatic latent images, comprising a mixture of toner and fine powder of silicic acid wherein the mixture has a ratio of B/A of 0.9 or larger provided that the mixture contains A wt. % thereof of the silicic acid fine powder, and contains B wt. % thereof of the silicic acid fine powder after the mixture has been passed through a 200 mesh-sieve. The developer may be produced by mixing the toner and fine powder silicic acid using a multi-stage mixer equipped with rotary mixing vanes.
Patent DE-3932013-A1 (DE)
Title: Two-armed industrial robot for sheet material - has both arms rotated relative to common vertical shaft with synchronous or asynchronous control
Inventor: PALM RAINER DR ING
IPC: B25J9/04
Filed: 1989-09-26
Abstract: The robot for sheet material has a vertical shaft (1) supporting both arms (4), for rotation about a common axis, each arm (4) having relatively pivoted sections for providing at least 3 degrees of movement.  The pivot sections and the arm mounting allow each arm (4) to rotate through an angle of more than 270 degrees, with individual or coordinated movement of the two arms (4). Pref. the gripper linkage for at least one arm (4) incorporates a pressure sensor allow position correction during handling of flexible sheets, to hold the latter in a flat plane. The operation of the arms is program controlled. USE - For handling flexible sheets, e.g. in textile industry, or for covering furniture panels with foil material.
Patent DE-3935898-A1 (DE)
Title: Catalytic oxidn. wastes purificn. from sterilising gases - by directly spraying recirculated water
Inventor: WERNER FRANZ DIPL ING
IPC: F23J15/06
Filed: 1989-10-27
Abstract: Hot waste gases (a) e.g. at 300 deg.C, are produced by catalytic oxidn. of ethylene oxide or formaldehyde as used for sterilisation of gases in hospitals or industrial plant. Gas cooling is effected by direct contact with sprayed liq. coolant (water), pref. delivered at an intermediate level to an upright column (1) to combine counter-flow cooling of gas below the sprayer with co-flow cooling of gas risen above the sprayer (7). Collecting coolant is discharged from base apertures (13) while at the column head is a droplet trap (15) preventing excessive discharge. Ratio between re-used and fresh coolant supplies is controlled by a valve responsive to process parameters. With a flat collector for coolant, a pair of overflow lines transfer the liq. ADVANTAGE - Provides cooling within restricted area without bulk heat-exchangers.
Patent DE-3941786-A1 (DE)
Title: Heavy penetrator core for armour piercing projectile - is formed by forging together wires made from tungsten with small alloying additions subjected to hydrogen
Inventor: STADLER HANSJOERG DR
IPC: F42B12/74
Filed: 1989-12-19
Abstract: The heavy penetrator core for an armour-piercing projectile is formed by forging together individual wires made from non-sag tungsten, ie tungsten with small alloying addns of K, Al, and Si, subjected to the H2 action at 700-800 deg C, producing a completely oxide free surface. Interstices in the bundle of wires are filled with Cu, applied by preliminary electrodeposition, or by a low mpt eutectic to act as matrix, advanced along the bundle-structure by continuous zone melting, eg while mounted in a tubular sheath not wettable by the matrix material, eg steel or heavy metal. Finally the structure is forged to permanently bond together the wires and matric metal. ADVANTAGE - Penetrator is free of bubbles or cavities which could affect penetration properties.
Patent DE-3942713-A1 (DE)
Title: Foam nozzle for expresso coffee machine - has steam pipe nozzle fitted inside air nozzle with cap
Inventor: LEUSCHNER UDO
IPC: A47J31/44
Filed: 1989-12-22
Abstract: The cappuccino nozzle, for producing foam in white coffee or in milk, especially a nozzle used on an Expresso coffee machine, consists of a steam pipe (2) with a divergent nozzle (26) fitted to its lower end. The steam pipe (4) is enclosed in the air pipe (6) which is fitted with a cap (32) which forms a divergent nozzle for the air supply. The cap has a longitudinal groove (44) which connects the air pipe (6) to a circumferential groove (46) which delivers the air to the outlet of the divergent steam nozzle and to the inlet of the air nozzle. USE - Coffee machines.
Patent DE-4001487-A1 (DE)
Title: Mobile ballast tamper for railway tracks
Inventor: THEURER JOSEF ING
IPC: E01B27/12
Filed: 1990-01-19
Abstract: A mobile ballast tamping machine comprises a machine frame mounted on a chassis, and a working frame (21,22) which swings about a vertical axis (19,20) in a horizontal side to side plane. Pairs of independent power driven (17,18) tampers (15,16) rise and fall on the ballast and are vibrated.
Patent DE-4001704-A1 (DE)
Title: Acceleration sensor with adjustable triggering threshold - has sliding inertial body restrained by roller body controlling optical path
Inventor: LOCHBRUNNER EDUARD ING GRAD
IPC: G01P1/02
Filed: 1990-01-22
Abstract: An acceleration sensor has an inertial body (14) which slides under the effect of an applied acceleration force along the rising side wall (12) of the inner chamber of a switching housing (10).  The inertial body is held in its rest position by a rocker body which controls the optical path between at least one optical source (22) and at least one optical receiver (21). The rocker body (16) has an extension (17) with at least one optically transparent aperture (19) for controlling the light path. ADVANTAGE - Can by manufactured partic. simply and economically and has adjustable triggering threshold.
Patent DE-4002237-A1 (DE)
Title: Gas burner combustion chamber - has exhaust gas feed component from furnace mounted concentrically in burner tube
Inventor: JACOBSEN HORST
IPC: F23D14/36
Filed: 1990-01-26
Abstract: The gas burner has a combustion chamber formed by a burner tube preferably of round cross-section, together with an annular gas nozzle, or several nozzles mounted off-centre in the tube. A feed component (21) for exhaust gas from the furnace (3) into the chamber (16) is mounted, preferably concentrically, in the tube (11), and has one or more outlet ports (16) at the chamber. ADVANTAGE - Optimum combustion at low temperature and reduction of nitrous oxide emission.
Patent DE-4004858-A1 (DE)
Inventor: MORIMOTO YASUAKI
IPC: G11B7/1378
Filed: 1990-02-16
Abstract: In an optical scanning device, a light beam (L) is focused astigmatically by an objective lens (O) on a record carrier, e.g. a disk (CD), which reflects it onto a four-quadrant photodetector (PD). The astigmatism is produced by an astigmatic element, e.g., a concave or convex cylindrical lens (ZX) or two mutually perpendicular transparent disks located in the beam path. The light beam (L) can be moved radially by a coarse drive. The objective lens (O) can also be moved radially by a fine drive in a direction (W) which makes an angle  alpha  to the normals (R) to the data tracks (S). However, the movement of the objective lens (O) controlled by the fine drive through the angle  alpha  causes imaging defects on the four-quadrant photodector (A, B, C, D), which lead to faulty focusing. To prevent faulty focusing due to imaging defects, a preferred axis of the astigmatic element, e.g., a cylindrical lens or two mutually perpendicular transparent disks, runs parallel to the direction of movement (W) of the objective lens. In the case of a convex cylindrical lens (ZX), the longitudinal axis (LA) is parallel to the direction of motion (W) of the objective lens. In the case of a concave cylindrical lens, the transverse axis is parallel to the direction of motion (W) of the objective lens. In the case of two mutually perpendicular transparent disks, the straight line SG which intersects the two disks is perpendicular to the direction of motion (W) of the objective lens. CD players, video disk players, DRAW disk players, and magneto-optical devices.
Patent DE-4005169-A1 (DE)
Title: MOvement detector using IR sensor - converts sensor signals into digitally processed signals handled by microprocessor
IPC: G08B13/19
Filed: 1990-02-17
Abstract: The detector has an IR sensor (1) and an associated evaluation circuit, for providing an alarm signal when the detected IR radiation exceeds a given internal threshold. The evaluation circuit converts the output signals from the sensor (1) into digitally processed signals, with a microprocessor (7) evaluating the latter to provide the alarm signal. The sensor signals are converted into pulse width modulated signals fed to the microprocessor (7). USE/ADVANTAGE - Intruder alarm simplification.
Patent DE-4009406-A1 (DE)
Title: Cleaning residues from reusable plastic containers
Inventor: WEIGAND THOMAS
IPC: B08B7/00
Filed: 1990-03-23
Abstract: In a process for cleaning colour residues form reusable plastic containers the containers are subjected to heat from microwaves to dry the residues and then follows a freezing stage through the use of liquid nitrogen. Embrittled residues can then be loosened by mechanical deformation of the containers. Residues can be reused in pigment prodn. Containers are cleaned with water using high pressure and/or brushes and then sterilised, dried and inspected. A container design suitable for the process is also claimed.   Specific. returned containers are inspected and the carrying handle and tear resistant labelling are removed by hand. Unreusable containers are disposed of and reusable containers sorted according the residue colour. Containers are then subjected to a drying process using microwaves and a following process blows liquid nitrogen over the containers to embrittle the residues.
Patent DE-4016953-A1 (DE)
Title: Electronic device with electromagnetic screening - using insulating and conductive pref. epoxy¨ resin layers
Inventor: SUESS DIRK
IPC: H05K9/00
Filed: 1990-05-25
Abstract: Screened electronic device is enclosed by a first insulation layer (3) which also encloses the outwardly extending connection contacts (5), a second electrically conductive layer (4) being connected to the earth connection (6) of the device and forming a cover layer on the first layer (3) except for the connection contacts (5). Pref. the first layer (3) consists of epoxy resin and the second layer (4) consists of epoxy resin with a filler (pref. carbon black, metal powder of ferroelectric material) and an organic amine as hardener. Prodn. of the device involves applying the layers (3, 4) by dipping, injection moulding or fluidised bed sintering. ADVANTAGE - The layers screen the device against deleterious electromagnetic radiation, allow mass prodn. and are even suitable for high voltages. (3pp Dwg.No.1/1)
Patent DE-4023055-A1 (DE)
Title: Aq. cytostatic soln. with low side-effects - containing lactic acid, organic buffer and opt. glucose
Inventor: MUELLER-KLIESER WOLFGANG PROF
IPC: A61K31/19
Filed: 1990-07-20
Abstract: Aq. cytostatic solns. (A) contg. lactic acid, an organic buffer and opt. glucose are new. USE/ADVANTAGE - (A) are used as replacement or adjunct treatment in tumour therapy. Admin. is by injection or pref. by infusion.  (A) have a superior effect to radiation therapy and chemotherapy, with a low incidence of side effects. Further, the components are all permitted for use in human medicine.
Patent DE-4025471-A1 (DE)
Inventor: HEISEL MICHAEL DR
IPC: B01D53/52
Filed: 1990-08-10
Abstract: A process allows gas streams under high pressure to be desulphurated with comparatively little equipment but with a high recovery rate. For that purpose, H2S is directly oxidized into sulfur by catalysis in at least one reactor. It is advantageous to use two reactors; the first one in the direction of the flow is an adiabatically driven reactor without inner cooling, through which the gas stream flows preferably upwards, whereas the second reactor in the direction of flow is advantageously a reactor interiorly cooled down to a temperature below the dew point of sulphur, through which the gas stream flows preferably downwards. In both reactors, different catalysts are generally used, although both catalysts are essentially composed of TiO2 and oxidize H2S directly and selectively, but not H2 and CO. In the first reactor without inner cooling, H2S is directly and selectively oxidized under high pressure through the catalyst. In the second interiorly cooled reactor, the reaction continues, whereas the sulphur that separates by condensation has in itself a catalytic effect, under the prevailing high pressure. Thus the regeneration of this reactor of liquid sulphur can be dispensed with. The sulphur produced condensates and is separated from the high pressure gas stream. The whole desulphuration process can be  further improved by reduction of the sulphur compounds and/or sulphur vapours into H2S and/or by adsorption, chemisorption or NaOH-washing of H2S, the residual sulphur compounds and/or the sulphur vapours.
Patent DE-4027460-A1 (DE)
Inventor: GEROLD HANS-JUERGEN
IPC: F16K49/00
Filed: 1990-08-30
Abstract: In this fitting, which is intended especially for a field of use in which, because of the flow of cold media, the fitting can be colder than the environmental air and in which, in consequence, there is a risk of condensation forming on the fitting, at least the upper housing region (1b) is surrounded by an insulating cap (8) at a distance, forming an air gap, to be precise in such a manner that the air gap is sealed with respect to the environmental air. In addition, the spindle nut (6) and/or the hand wheel (7) may consist of a material having poor thermal conductivity in the region of the actuating mechanism. It is furthermore especially expedient for the chamber (19) which is formed in the protective cap (17) located on the hand wheel (7) and into which the spindle enters when the fitting is in the open position to be sealed with respect to the environmental air with a material of poor thermal conductivity. <IMAGE>
Patent DE-4028632-A1 (DE)
Title: Prodn. of cardboard cartons - by printing on continuous strip of cardboard which is cut up to form carton blanks
Inventor: SCHWAGER DIETER
IPC: B31B50/16
Filed: 1990-09-08
Abstract: Cartons are made from printed cardboard blanks (6) by first printing on a continuous strip of cardboard with the printing being repeated at equally spaced intervals. Grooves are then formed along the lines along which the cardboard is subsequently folded end, if required, decorative patterns are embossed. The strip is then cut up into pieces and the pieces are cut to form the blanks. The grooves and the embossings are produced by a rotary process in which the cardboard is brought into position by means of two rollers which exert no pressure on the cardboard. The embossing operations produce projections on one side of the cardboard and indentations on the other side. USE/ADVANTAGE - The process produces cartons of high quality.
Patent DE-4031942-A1 (DE)
Title: Sterilisable surgical cloth with outer viscose layer - and permeable base layer, with thermoplastic synthetic adhesive between outer and barrier layers
Inventor: KREMER ULRICH
IPC: A61B46/00
Filed: 1990-10-09
Abstract: A sterilisable surgical cloth has (a) a liq. absorbing outer layer, (b) a liq.-impermeable barrier layer of a thermoplastic synthetic film, bonded to the outer layer, and (c) a breathing, non skin irritating permeable base layer, of thermoplastic synthetic fibres (a). The outer layer is pref. viscose fleece or fabric, and (d) between the outer and barrier layers a layer of adhesive is used which is based on a thermoplastic synthetic with a softening temp. lower than the barrier layer. Alternatively, the adhesive is incorporated in the viscose fleece or fabric as fibre or binder. The otuer layer, barrier layer and base layer are bonded together thermally by brief heating of at least one of the layers to a temp. in the softening range of the synthetic. USE/ADVANTAGE - The cloth is a throw-away prod. with good softeness, draping qualities, absorption, barrier function, sterilisability, tear strength, and abrasion resistance. The surface is rough, and instruments placed on it do not slip off. The unsterilised cloth can be used in, e.g. pharmacy, hygiene, and the electronics and optical industries. (1/3)
Patent DE-4032129-A1 (DE)
Title: Stochastic alignment for magnetic recording medium e.g. floppy disc - uses rotating magnetic drum with alternating radial magnets
Inventor: VEITCH RONALD JOHN DR
IPC: G11B5/845
Filed: 1990-10-10
Abstract: The stochastic alignment system uses a magnetic drum (3) with radial permanent magnets of alternating polarity, rotated relative to the surface of an organic layer (2) incorporating finely dispersed magnetic particles applied to a flexible carrier (1). The dispersed magnetic particles may be oriented via a uniform, undidirectional, magnetic field before the stochastic alignment. - The rotation rate of the magnetic drum (3) and/or its spacing from the dispersion layer (2) are regulated by monitoring the stochastic alignment of the magnetic particles.
Patent DE-4034008-A1 (DE)
Title: Multistage steam generator furnace - has surfaces in heat exchange zones cooling gases from successive reaction zones
Inventor: MAGHON HELMUT
IPC: F23C6/04
Filed: 1990-10-25
Abstract: The steam generator furnace has a first reaction zone (1), following a pre-mixing burner, with inlets for air and/or flue gas contg oxygen (2), and for fuel (3).  Surfaces (5) in a first heat  exchange zone (4) cool the combustion gases generated in the first reaction zone from 1300-1600 deg.C to 700-1000 deg.C.  deg.C. A second reaction zone (6) contains nozzles spraying fuel in a finely divided state (7). Surfaces (9) in a second heat exchange zone (8) cool the combustion gases from the second reaction zone from 1200-1600 deg.C. to outlet temp. ADVANTAGE - Improved combustion with low NOX generation
Patent DE-4036827-A1 (DE)
Title: Making a steel profile with outer corrosion protection - by heat treating, scaling, applying zinc coating and heat treating thus improving productivity
Inventor: KLIPPEL HORST
IPC: B32B15/01
Filed: 1990-10-24
Abstract: A method of giving a high hardness, tough steel profile an outer corrosion protection comprises the following steps:  1) heat treatment, 2) scaling, 3) application of a Zn coating, and 4) heat treatment of the Zn treated part. More specifically, a steel profile made by hot rolling (opt.  cold rolling, followed by heat treatment) was scaled and subsequently annealed under a protective gas atmos.  (in complete absence of O), then heat treated in a Zn bath. After the annealing the profile needs to undergo rapid cooling under a protecting gas blanket. Cooling agents can be oil, water or liquid N, if the latter is used it evaporates and becomes the protective gas. The annealing stage in the Zn bath is carried out at temps. in the range 480-500 deg.C, and needs to be held at this temp. for at least 3 minutes. This process is suitable for making tube-form steel profiles used for reinforcing motor car doors. USE/ADVANTAGE - Simpler and cheaper method than conventional Zn corrosion protecting techniques, fewer stages.
Patent DE-4038382-A1 (DE)
Title: Passive permanent magnet radial rotor bearing - uses permanent and soft magnetic rings attached in alternation to stator and rotor
Inventor: MARINESCU MARLENE DR ING
IPC: F16C39/06
Filed: 1990-12-01
Abstract: The radial bearing between a stator and a rotor uses at least three concentric rings (1, 2, 13), spaced along a common axis and attached in alteration to the stator and the rotor. The rings are made of permanent magnetic and soft magnetic materials, so as to obtain a flux field parallel to the axis in each air-gap (10, 11) between axially adjacent rings, opposing forces of attraction acting on the centre ring (13). The two outer rings (1, 2) have opposing magnetisation directions. Pref., the outer rings have permanent magnetic rings (3, 4) radially magnetised in opposite directions, the magnetic flux passing through pole rings (15, 16) of the centre ring. ADVANTAGE - Improved radial/axial inflexibility ratio.
Patent DE-4110671-A1 (DE)
Title: Regulating temp. of appts. having parts in heat conductive contact - measuring temp. to use as regulating valve for thermostat to supply heat to or convey from appts. by coolant circuit
Inventor: KUSCHEL GEORG DR
IPC: G05D23/19
Filed: 1991-04-03
Abstract: The heat is supplied to or conveyed from the appts. directly or to or from the first unit of the appts. At least one further appts. unit is then indirectly heated. The actual temp. of all the appts. units is separately measured. These actual values are weighed according to a hierarchical series of appts. units. A weighed mean value is derived to serve as a regulating value. The first appts. unit can be an object chamber (1) and a second, a base plate (2) with a movable object table (3). Tubes (4) guide the coolant to the chamber. The latter has a measuring point (5) and the base plate has one (6) too. Platinum wire resistors of a rated value of 100 ohms can be connected in a bridge circuit for use as a measurement value pickup in the temp. regulating circuit. USE/ADVANTAGE - Electron beam installation, e.g. for lithography. Requires only one thermostat to hold deviation from stipulated temp. small.
Patent DE-4118889-A1 (DE)
Title: Plastic pipe welding system - where V=shaped notch is milled in butt-joint enclosed by plastic ring before welding with plastic
Inventor: MUNSCH ERICH
IPC: B29C65/00
Filed: 1991-06-10
Abstract: Two plastic pipes are welded together using plastic welding material. They are positioned with their ends butting together, and a plastic ring is pulled over them on the outside, so as to overlap the join on both sides. A V-section notch is then milled in the join, forming a groove extending into the ring, and welded with the plastic welding material. A rotary support can be used, having a radially-adjustable bracket, accommodating the milling or welding head as desired. ADVANTAGE - Good-quality welding of large pipes with little physical effort.
Patent DE-4119602-A1 (DE)
Title: Spill valve with spring-loaded diaphragm - has diaphragm support ring to prevent excessive compression
Inventor: SCHAEFER GUENTER
IPC: B60T11/32
Filed: 1991-06-14
Abstract: The spill valve is for the multiple circuit protection of the pneumatic braking system of a motor vehicle. It has a body (1) and a cover (2) which houses the spring (15). The body has an inlet (5) and an outlet (8) with the valve seat (6) between the inlet and outlet. A flexible diaphragm (3) is pressed against the seat (6) by the spring (15). An excessive compresion of the diaphragm is prevented by a support ring (10) which fits freely around the outside of the seat and has an OD which is less than the dias. of the body (1) and cover (2). USE/ADVANTAGE - Braking system for motor vehicle. Spill valve with a diaphragm support ring to prevent excessive compression of the diaphragm.