baber/WOPTO huggingface dataset:
Patent DE-3919892-A1 (DE)
Inventor: HOEVER ALEXANDER
IPC: C08L23/16
Filed: 1989-06-19
Abstract: A welding cord for welding homogeneous plastic sheeting or boards, such as floor coverings, contains, as thermoplastic binder, predominantly an ethylene-vinyl acetate copolymer (EVA), if desired with admixed EPDM and polypropylene and/or polyethylene. The vinyl acetate content in the overall batch is from 10 to 20% by weight, and the proportion of assistants and fillers is from 1 to 30% by weight.
Patent DE-3921391-A1 (DE)
Inventor: MARKART ERNST
IPC: G01N33/48
Filed: 1989-06-29
Abstract: A device for the analysis of liquid samples, in particular body fluids, by remission, which samples are in each case applied to a test field (36) of a test strip (34) which can be introduced into the device (10), comprises a strip recess (20) having a measuring window (30) formed in a strip support surface (28), a stop which limits the insertion of the test strip (34) in order to position the test area (36) in relation to the measuring window (30) and an optical transmission/reception system arranged opposite the measuring window (30). In the device, a latching element (42) which, in its latched position, engages in a cutout (46) near the inner end of the test strip (34), is provided at the inner end of the strip recess (20). <IMAGE>
Patent DE-3922504-A1 (DE)
Title: Axial piezoelectric actuator spring-biased by metallic bellows - incorporates stack of piezoelectric discs within welded bellows which forms whole or part of sealed housing
Inventor: SCHWERDT PAUL
IPC: H01L41/053
Filed: 1989-07-08
Abstract: The bellows (11) is fitted over the end of a stack (12) of piezoelectric discs (10), and secured by welding (16.2) to one part (13.1) of the housing. The other part (13.2) is bonded to this by electron beam (16.1) which leaves a vacuum in the enclosed space (14) around the stack (12). Electrical leads (17.1, 17.2) to the stack (12) are taken through airtight openings (18.1, 18.2) in the upper part (13.2) of the housing. The spring bias is adjusted by matching of the thickness of individual discs (10) to the bellows (11). The sealed device can operate fully independently of the environmental conditions and esp. of the atmos. humidity. ADVANTAGE - Mechanical bias shows relatively little variation with displacement so that it can be adjusted easily and cheaply without having to respect critical tolerances.
Patent DE-3925984-A1 (DE)
Title: Hot waste gas desulphurisation - by cooling, reaction with chlorine in static mixer and absorption
Inventor: ROEHRBORN HANS-JOACHIM DR
IPC: B01D53/50
Filed: 1989-08-05
Abstract: Desulphurisation of hot waste gases contg. SO2 and opt. H2S is carried out by (a) cooling the gas to below 100 deg.C; (b) reacting the gas with Cl2 in amt. equivalent to the SO2 and opt. H2S content in an intensive mixing line consisting of static mixer elements; and (c) removing the resulting oxidised components from the gas by absorption in a liq.  medium. USE/ADVANTAGE - The process is useful for treating waste gases from processing sulphide or sulphate ores or raw materials, waste gases from titanium ore digestion or TiO2 pigment mfr., waste gases from calcination processes, waste gases from combustion of sulphur-contg. coal and esp.  waste gases from barytes redn. to barium sulphide. It provides practically complete oxidn. of the waste gases at below 100 deg.C, thus avoiding heating of the absorption medium, avoiding absorber corrosion problems and avoiding mist and acidic condensate formation. Pressure loss is low due to the use of static mixers.
Patent DE-3926956-A1 (DE)
Title: Laser with coaxial pump system - has discharge plasma which does not fill the entire laser discharge space
Inventor: NOLL REINHARD DR
IPC: H01S3/092
Filed: 1989-08-14
Abstract: The laser comprises a laser tube (2) which contains the laser medium and which is surrounded by a coaxially arranged outer tube (1) forming an annular intermediate gap (6) at whose ends secondary electrodes (3,4) are disposed. The gap (6) contains a discharge medium in which a discharge plasma (14) can be produced, whose light emission optically pumps the laser medium. At least one secondary electrode (3) has annular points or ridge (8) which is directed inside the outer tube (1) towards the other secondary electrode (4). The width of the intermediate gap (6) is considerably bigger than the thickness of the discharge plasma (14). USE/ADVANTAGE - Reduced erosion of glass walls of laser by plasma. Improved efficiency and beam quality.
Patent DE-3927881-A1 (DE)
Title: Clarifier used for cleaning waste water - contains inlet chamber, sepn. chamber, sedimentation chamber including plate and collector channels for clarified water
Inventor: IVANOV IVAN MINKOV DIPL ING
IPC: B01D21/00
Filed: 1989-08-23
Abstract: A housing contains an inlet chamber, a separation chamber, a sedimentation chamber with a set of sedimentation plates, and a number of collector channels for the clarified water. Inside this housing is a reversible conveyer fitted with scrapers, which is guided by rollers along the floor of the housing and across the surface of the liq. in the inlet chamber. A screw conveyer is located near the surface of the water in the inlet chamber, and in the lower part of this chamber are an agitator and a partition protecting the scraper conveyer. The collector channels are in the upper part of the sedimentation chamber and lead to a clarified water container. In the floor below this chamber is a perforated pipe for removal of sludge, and near the inlet to the sedimentation plates is a pipe for introduction of a flocculating agent. USE/ADVANTAGE - This clarifier is intended for the cleaning of waste waters. Effective sepn. of coarse and fine sediments is achieved, and foam and floating impurities are simultaneously removed.
Patent DE-3930886-A1 (DE)
Inventor: WEBER JUERGEN DIPL CHEM DR
IPC: C07C69/66
Filed: 1989-09-15
Abstract: The invention relates to a method for the production of methyl 2-formylbutyrate by hydroformylation of methyl crotonate in the presence of catalysts which contain rhodium and organic phosphines.
Patent DE-3933818-A1 (DE)
Title: Mulching out grass, leaves etc.
Inventor: EGGENMUELLER ALFRED DR ING
IPC: A01D34/00
Filed: 1989-10-10
Abstract: The grass and leaves mulching mechanism has a mower and/or collector with a following chopper and press. The latter (4) comprises a tined rotor (5), whose tines (6) press the leaves and stalks against a press duct (8) which partially surrounds the rotor. Then the material is passed into a press channel (10), as well as to  the adjacent distributor (12). Once torn up and squashed in the press and a deflecting channel (34), the material is spread out over the ground width.
Patent DE-3935293-A1 (DE)
Title: Vane-type pump assembly - has tank containing hollow plastics insert held by pressure plate against housing
Inventor: TEUBLER HEINZ
IPC: F04C2/344
Filed: 1989-10-24
Abstract: The vane-type pump is particularly for power-assisted steering gear, having a tank (1) mounted on the pump housing (2).  The tank contains a hollow plastics insert with sidewalls (11), a bottom (12), and a metallic insert (14) in the latter, whose thickness is between 0.1 and 0.2 mm less than that of the adjacent portion of the plastic bottom (12). The insert is covered, together with the adjacent edge (19) of the bottom, by a pressure plate (20), secured under pre-loading to the pump housing (2). USE - Vane-type pump for vehicle power steering gear.
Patent DE-3936728-A1 (DE)
Title: Filing system for sheet material - incorporates bead along page edge accommodating label
IPC: B42F21/08
Filed: 1989-11-04
Abstract: The filing system is for material in sheet form. It has pages (1) dividing the sheets into groups and accommodating denoting  labels (5) on one or more edges (3). The page edge has a bead (2) running in its lengthwise direction and on which the label etc. is fitted. This can be of round or rectangular cross-section, and with locking positions at intervals along it (4), and formed by recesses in it, or alternatively protrusions. USE/ADVANTAGE - Widely adaptable filing system for sheets of paper.
Patent DE-4000850-A1 (DE)
Title: Sectional boiler for heating water - has vertical sections with water channels to form combustion chamber and gas flue
Inventor: ASSMANN HARTMUT DIPL ING
IPC: F24H9/00
Filed: 1990-01-13
Abstract: The sectional boiler has vertical sections with water channels to form a combustion chamber and a gas flue. Near the combustion chamber (3) and the flue (4) a water channel (2) of similar cross section is connected to a large volume water chamber (6), to which the flow and return (7, 8) are also connected at the same level. The chamber (6) is formed by the upper part of the individual boiler sections (1). USE/ADVANTAGE - Sectional boiler for heating water. A short circuit from return to flow is prevented by a guide passage in the water chamber.
Patent DE-4002934-A1 (DE)
Title: Vacuum switch contact arrangement - has contact blades attached to vertically-operated contact bolt, gripping flat vertical part of fixed conductor rail
Inventor: STEGMUELLER KARL DIPL ING
IPC: H01H1/58
Filed: 1990-02-01
Abstract: Raised and lowered below the fixed switching chamber of a vacuum switch is a contact bolt (4). A spigot (7) projects freely at the bottom, guided by an opening in a horizontal rail (8). Extending sideways from am enlarged flat part (9) of the bolt is a pair of current carrying blades (51). These grip between them a plate shaped part (53) projecting outwards from the fixed conduct-or rail (6).
Patent DE-4003421-A1 (DE)
Title: High resolution wide angle lens with low distortion - is for aerial camera, contains 11 lenses, 14 lens-air boundaries in groups
Inventor: RIECHE GERD DIPL ING DR
IPC: G02B13/04
Filed: 1990-02-06
Abstract: The wide angle lens arrangement contains (11) lenses and (14) lens-air boundaries with (6) lenses mounted before a central stop, a scattering meniscus, a scattering dual combination group, a collecting group and (5) lenses after the stop, a collecting group, a collecting dual combination group and finally a scattering meniscus. The collecting combination group consists of a highly refractive collecting lens, a scattering lens and a further collecting lens. The collecting group after the stop contains a fluorite lens and a scattering meniscus.
Patent DE-4005009-A1 (DE)
Title: Luggage rack for bicycles and motorcycles - has hook secured to support strut, engaging transverse strut of rack
Inventor: KAPETSIS JANIS
IPC: B62J7/02
Filed: 1990-02-19
Abstract: The luggage rack for bicycles, motorcycles etc. has a luggage carrier, consisting of longitudinal and transverse struts, with one or more movable support bars. The support strut (6) carries a metric hook (5), which engages a transverse strut (3) of the carrier rack (2). Thus, the outer ends of the transverse arm of the U-shaped support strut are supported on the lower side of the longitudinal strut of the carrier rack. ADVANTAGE - Improved rigidity and facility mount the rear reflector.
Patent DE-4010569-A1 (DE)
Title: Electric machine rotor with permanent magnets around core - retained by non-magnetic fibrous band in grooves under radially movable segments between centring discs on shaft
Inventor: LEITGEB WILHELM DR
IPC: H02K1/27
Filed: 1990-04-02
Abstract: The permanent magnets (7) are fitted around the circumference of the core (2) assembled to the rotor shaft (1), and are retained by a band (8) of mineral fibres. The magnet-carrying segments (3) are coupled rigidly to the core (2) in the circumferential direction but able to move in the radial direction in a shallow groove (5,6). The material of the band (8) has a larger coefft. of expansion than that of the core (2). The centring discs (9) ensure approximately equal radial movements of the segments (3). ADVANTAGE - Magnets are held securely against strong centrifugal forces at high rotational speeds.
Patent DE-4011669-A1 (DE)
Title: Self-loading mechanism for agricultural crop machinery - uses hydraulic drive to pivot and open rear flaps against monitored closure press
Inventor: BALDINGER FRIEDRICH ING
IPC: A01C3/06
Filed: 1990-04-11
Abstract: The waggon has an electrohydraulic drive and an electrohydraulically-controlled, double-action lever mechanism (2), for pivoting the rear flaps (1) to close the loading opening, with the press acting on the latter monitored, to bring the rear flaps (1) to a halt when a given press is reached. Pref. the hydraulic line is interrupted upon a detected press indicating an obstacle in the closure path of the pivoted flap (1).
Patent DE-4014968-A1 (DE)
Title: Water mixer tap with shower head attachment
Inventor: GNAUERT WERNER
IPC: E03C1/10
Filed: 1990-05-10
Abstract: The mixer tap with a shower head attachment incorporates a venting device for preventing water from being drawn back via the hose connection (25) between the tap housing and the shower head (26). A valve inserted in the water feed for the shower head (26) has a valve element displaced between two opposing valve seats respectively associated with a vent opening and a flow opening for the water feed. The valve element is biased towards the valve seat associated with the water feed flow opening. Pref two such valves are used, one behind the other.
Patent DE-4015820-A1 (DE)
Title: Aspiration device for multicylinder IC engine - involves at least one suction channel per cylinder extending around central channel
Inventor: ZORN GEORG
IPC: F02B27/00
Filed: 1990-05-17
Abstract: The suction channels (4) are arranged in the longitudinal direction of the central channel (2) next to one another. The aspiration device is formed by parallel plates (8,10,12), two of which (8,10) are end plates, and the others (12) are intermediate plates. They are fitted tightly against one another with their flat surfaces, and secured by screws (14) engaged through aligned through bores (16). The plates have a central bore (18) which forms the central channel (2), and in their facing side surfaces are deepened formations (20,22) which supplement the suction channels (4). They can be made by press of injection moulding with reduced wall thickness, which in turn produces low wt. and small dimensions. USE/ADVANTAGE - Manifold or aspiration device for multi-cylinder IC engines can be produced from pressure-moulded light metal or even injection-moulded plastic.
Patent DE-4019705-A1 (DE)
Title: Machine for finish machining of oval workpieces - has workpiece motion derived from transmission consisting of simple mechanical elements
Inventor: OBERG HANS-JOACHIM DR
IPC: B23Q27/00
Filed: 1990-06-21
Abstract: Oval sections are important in IC engine design and production.  Oval sections of the R=a(1-sin2<)+b sin 2< where R is 'radius', a and b are the largerst and smallest half axes, and < is the angle  between R and one of the axes, can be generated by simple linear nd rotational movements of the workpiece relative to the tool. This is achieved by simple mechanical means, i.e.  eccentrics (2,13), gears (3,4;18,20), racks (16,21) and the slide (7), which together form the transmission from input shaft (1) to the chuck (9).  The machining process can for example be turning, grinding or polishing. ADVANTAGE - Workpiece geometry is simply and accurately produced. Only the workpiece  need by moved.
Patent DE-4019895-A1 (DE)
Inventor: BREITENMOSER ARMIN
IPC: B25B23/147
Filed: 1990-06-22
Abstract: In an electrically powered hand-tool, in particular screwdriver and the like, in which a disconnect-type clutch, in particular in the form of a claw clutch, is situated between the drive motor and the tool output shaft, it is proposed to monitor the position of the claw clutch by means of a distance sensor and then to accelerate the drive motor, via a speed-control circuit, controlled by the distant sensor, for said drive motor, to high operating speed and optionally to maintain it at this speed whenever an inwardly directed pressure is exerted on the tool output shaft when screws and the like are being screwed in, by which pressure the disconnect-type clutch is simultaneously caused to close. 
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Patent DE-4020807-A1 (DE)
Title: Display field for information processing system - has input and output modules in groups connected onto common bus
Inventor: SCHROTTENLOHER PETER DIPL ING
IPC: H04B3/46
Filed: 1990-06-29
Abstract: A display field for use in information processing system provides monitoring of input and output elements. The inputs and output modules (411-416) are coupled to the data bus (31) that connects with the central units. Each I/O module has a connection with a peripheral unit (P). The peripherals have a series of devices, such as switches (501), push button inputs (502). Indicators are used which may be LED elements (601), display bulbs (602), opto couplers (603), relays (604) and buzzes (605). These may be arranged in lines on a panel. ADVANTAGE - Simple means of providing display of functions.
Patent DE-4021922-A1 (DE)
Inventor: PUTSCH PETER
IPC: B29C45/46
Filed: 1990-07-09
Abstract: A process is disclosed for recycling plastic materials. The previously sorted plastic material wastes are comminuted, mixed, melted and homogenized during a first step, and the raw materials thus recovered are immediately stocked in a storage chamber (12) or buffer reservoir, then supplied to an injection and moulding device (13). During their temporary storage, the raw materials are exposed if necessary to a regulated temperature.
Patent DE-4022455-A1 (DE)
Title: Measuring arrangement for length or height and width ratios - has relatively movable scanned parts for opening or closing viewing windows e.g. as drawing aid
Inventor: SCHIMBKE EDGAR
IPC: G01B3/02
Filed: 1990-07-14
Abstract: An arrangement for determining the ratio of length or height to width contains a rectangular window of variable height or width and identical scales on at least two mutually perpendicular window edges. Two parts (5,6) are guided to slide w.r.t. each other. The window (3) is arranged in one of the parts. The other part partially covers or expands the window aperture according to the degree and direction of the relative motion.
Patent DE-4032137-A1 (DE)
Title: Travelling wave tube with electron target -  has shutter(s) with tubular protrusions on side away from impinging electron beam
Inventor: BLUHM KARL-HEINZ DIPL ING
IPC: H01J23/027
Filed: 1990-10-10
Abstract: The electron target has a housing with several circular disc shutters, fitted one behind the other in the electron beam direction. Their central electron beam through apertures are at least partly of different size. At least one shutter (2 - 6) has tubular protrustions (16 - 18) on the side away from the inpinging electron beam (10(. The length of the protrusions is less than the 0.6 times spacing of the shutters, while their dia is not much greather than that of the shutter apertures (11 - 15). The shutters pref. consists of dished and/or conical sheet metal discs, whose convex side faces the electron beam. ADVANTAGE - Improved design of tube shutters.
Patent DE-4040397-A1 (DE)
Title: Pneumatic motor as universal drive machine - generates differential air pressure for drive by air centrifuge
Inventor: HORN RALPH
IPC: F03G7/10
Filed: 1990-12-17
Abstract: The penumatic motor acting as a universal drive machine for the delivery of mechanical energy has an air centrifuge which generates a differential pressure to supply the drive. The air centrifuge has a round, disc-shaped cylinder rotating about its axis, with tubes extending radially from the cylinder to convey a constant flow of air from the centre outwards. To the centre is coupled a vacuum adjusting chamber. ADVANTAGE - Low-cost, non-pollutant energy generation.
Patent DE-4042002-A1 (DE)
Title: Carbon di:oxide removal from waste gas - by chemical reaction with porous solid basic nitrite-sodalite
Inventor: BUHL JOSEF-CHRISTIAN DR
IPC: B01J20/16
Filed: 1990-12-22
Abstract: A process and substance for CO2 removal from off-gases at elevated temp. are claimed, the novelty being that (i) the CO2 is fixed as Na2CO3 by chemical reaction on passage through a porous solid at 700-750 deg.C with evolution of only H2O; (ii) the solid is an aluminosilicate with a framework structure of space-filling packed cells of sodalite type with statistical 50% occupation of the cells by NaNO2 as temp.-stabilising guest molecule and 50% occupation by NaOH.H2O as reactive guest molecule, the solid having the compsn. Na8(AlSiO4)6(NO2)(OH.H2O) (i.e. basic nitrite-sodalite); and (iii) after satn. with CO2, the solid can be regenerated by heating at 850 deg.C in air to release the CO2 while retaining the framework structure and can be simultaneously modified by oxidn. of the temp. stabilising guest molecule to nitrate. USE/ADVANTAGE - The process is useful for CO2 removal from fossil fuel combustion waste gases. The CO2 is  immobilised as a stable cpd. (Na2CO3) in a temp. range in which zeolites have very low sorption rates and the solid can be easily regenerated and simultaneously modified.
Patent DE-4102116-A1 (DE)
IPC: E03C1/084
Filed: 1991-01-25
Abstract: A jet regulator (1) for connection to sanitary fittings has a jet-splitting device (2) which is essentially formed by two perforated plates (7, 8). The perforated plates (7, 8) are connected to one another and also supported both at the outer edge and in the central region. In these connecting regions, provision is also made, at the same time, for position-fixing means, through which the perforated plates (7, 8) can be positioned in a predetermined position relative to one another in the connected position. The through-flow holes present in the perforated plates are thereby positioned in a position offset relative to one another. The connection and support of the perforated plates (7, 8) one against the other avoids vibrations and hence increased noise formation. <IMAGE>
Patent DE-4103457-A1 (DE)
Title: Comparative microscope for observing two similar objects through two lenses - has video mixer bringing both pictures together for comparative observation, both lenses being part of single microscope
Inventor: GOODMANN PETER NICOLAS
IPC: G02B23/24
Filed: 1991-02-06
Abstract: On a foot plate (1) is located a frame column (2), to which height-adjustable arms are fitted. The lower arm pair carries the object table (14), on which the two objects (15',15'') to be compared are arranged. On the upper pair arms (3) are holders (4) which carry endoscopes (5). The endoscopes are special, rigid and of the highly magnifying type, having a straight shaft at the upper end of which is an eyepiece (7) and at the lower end a lens (6). The extent of magnification is e.g. 50 x or 100 x, according to usage requirements. Video cameras (8) are angled to the eyepieces (7) of both endoscopes (5) and are connected by video signal cables (9) to a video mixer (10). This comprises a range of adjustment units in order to influence as desired the signals coming from the video cameras (8). The video mixer (10) is connected via a further cable (11) to a video monitor (12), on the picture screen of which the video camera pictures are presented. The pictures (13',13'') are presented next to one another and by adjustment of the video mixer (10) they can be presented overlapping, with one in red and one in green. ADVANTAGE - For criminal investigation work, to examine, inter alia, bullets which have been fired for similarity.