baber/WOPTO huggingface dataset:
Patent DE-3919817-A1 (DE)
Title: Circuit for video signal digital aperture correction - has sample characteristic in memory, to whose address inputs is fed aperture correction signal via multiplier
Inventor: BECKENBACH ARNO DIPL ING
IPC: H04N5/208
Filed: 1989-06-16
Abstract: A digital aperture correction signal is derived from the video signal.  It is modified by a circuit with adjustable, non-linear characteristic.  The modified signal is added to the video signal. The non-linear characteristic provides aperture correction signal rise from zero to specified value according to correction signal values. A sample characteristic is written into a memory (13), and the aperture correction signal is fed to the memory address inputs via a multiplier (12).  From the memory data outputs the modified correction signal is tapped via a second multiplier.  Adjustable signals, changing the characteristic can be supplied to the multipliers. ADVANTAGE - Low-cost design for rounded characteristic.
Patent DE-3922379-A1 (DE)
Title: Cut=off arrangement for artesian well - has shut=off valve in pipe packing which can be directly opened from sample extracting pipe above ground level
Inventor: SCHAEFERS UWE
IPC: E03B3/16
Filed: 1989-07-07
Abstract: The pipe (2) ending above ground is provided with a releasable shut-off valve (6). Sealing packing (17,18,19,29) is releasably inserted in the pipe. This packing receives the valve which can be released from above. A sample extracting pipe, also ending above ground level, is connectable to the valve. The valve can be opened through connection with an up pipe (13) in an extension of the sample extracting pipe. The sealing packing is below the frost level of penetration. A firset packing part (18) has a base (20) and is fixed to a guide pipe (12) leading upwards. The second part (17) is above the first and fixed to a packing pipe (11) concentrically surrounding the guide pipe along its whole length. USE/ADVANTAGE - Monitoring nature and quality of water table. Simply constructed, allowing simple extraction of sample without loss and allowing flexible application without danger of first stopping operation.
Patent DE-3925876-A1 (DE)
Title: Analysing lipoprotein(s) in whole serum by size fractionation - on agarose gel, then direct cholesterol assay of the individual fractions
Inventor: MAERZ WINFRIED
IPC: C07K14/47
Filed: 1989-08-04
Abstract: Method for sepn. and quantitative determn. of lipoproteins (LP) in native serum comprises (1) sepn. of plasma LP from whole serum (i.e. without preliminary ultracentrifugation) according to particle size, then (2) direct quantitative determn. of the cholesterol (I) content of the individual fractions. More specifically step (1) is done on a column of agarose gel, and step (2) is carried out after incubation of the column eluate with an enzymatic (I) reagent in a geometrically fixed capillary. USE/ADVANTAGE - The method is used in diagnosis of hyper- and dys-lipoproteinaemia which are risk factors for atherosclerosis. Unlike known processes (which involve ultracentrifugation) it provides reproducible results (without interference from high concns. of triglycerides); is inexpensive; not labour intensive; simple enough for routine use; quick and uses relatively small sample vols.
Patent DE-3928128-A1 (DE)
Title: Cleaning and washing agent which is kind to skin - contg. long chain sulphonium salt of glycol semi-ester of sulphuric acid
Inventor: DISTLER HARRY DR RER NAT
IPC: A61Q19/10
Filed: 1989-08-25
Abstract: A washing and cleaning agent and an agent for care of the body contains a cpd. of formula R1R2S-CHR3-CHR3-OH)+ HO-CHR3-CH-CHOSO3-R3 (I) where R1, R2 = 1-20C alkyl, 2-4C hydroxyalkyl, 5-8C cycloalkyl, 7-12C aralkyl, or Ph, R3 = H or 1-2C alkyl. USE/ADVANTAGE - The compsns. have good washing and cleaning effect, are germicidal and easily degradable, and are kind to the skin and soften water without a complexing agent. The compsns. are used to disinfect surfaces, to clean sanitary appliances, to clean structures and bottles, to wash textiles and flat goods made from them, to clean feathers, hair, furs, and skins, for bathing or showering, or as a shampoo. Cleaning compsns. may be as a paste.
Patent DE-3935432-A1 (DE)
Title: Non-destructive tester for conductive workpieces - has electromagnet system movable over workpiece and cooling system
Inventor: VERHOEVEN JUERGEN
IPC: B06B1/04
Filed: 1989-10-20
Abstract: An arrangement for non-destructive testing of electrically conducting workpieces contains an electromagnet system movable over the workpiece with series pole pieces connected together on the side away from the workpiece by a weakly magnetic shorting piece. Cooling medium channels (45,46,47,4) feed, e.g. internal cooling bodies, for the pole pieces and the inner surfaces of magnetic coils (11).  A cap (19), closing off the system base, has recesses (23) for the pole piece transducer coil systems which have magnetic field concentrators (27). USE/ADVANTAGE - Signal-to-noise ratio of electrodynamic ultrasonic transducer improved.  Easily adapted for all types of testing.
Patent DE-3941307-A1 (DE)
Inventor: LAINE JOUKO
IPC: F23C6/04
Filed: 1989-12-14
Abstract: For under stoichiometric combustion in a first furnace stage 2 a mixer 6 supplies a mix of air from duct 5 and low or non-oxygen containing reducing gas recycled from the first stage 2 by a flue duct 8 which preferably includes a cooler 9. The second furnace stage 12 is supplied with air by duct 14 and the mixed gas by duct 22, includes a cooler 15 and exhausts through a further cooler 16 into a flue 19 supplying the mixer 8 and a flue 18. Valves 11 and 20 are adjustable to keep the nitrogen oxide concentration below a required value. <IMAGE>
Patent DE-4002510-A1 (DE)
Inventor: FRESENIUS JUERGEN DIPL ING
IPC: B01D25/12
Filed: 1990-01-29
Abstract: A new apparatus for extracting water from product or sewage sludge on the spot is provided. It is characterized by a frame matched to the dimensions of a low loader and having lifting supports which can be pivoted in and out and which have multi-step vertical adjustability. Filter presses of substantially higher capacity than those on known apparatuses employing a semitrailer can be used.
Patent DE-4003309-A1 (DE)
Title: Continuous prodn. of imido-per:carboxylic acids - by mixing aq. hydrogen peroxide and acid soln. of corresp. imido-carboxylic acid in static mixer and precipitating in water
Inventor: FUCHS HERMANN DR
IPC: C07D209/48
Filed: 1990-02-05
Abstract: Imido-percarboxylic acids of formula (I) are produced by continuously feeding a soln. of the corresp. imido-carboxylic acid (II) in sulphuric acid or methane sulphonic acid and an aq. soln. of H2O2 (III) into a static mixer, then mixing the soln. obtd. with water and isolating the pptd. prod.. In the formulae, A = 2-4C alkylene, phenylene, naphthylene or a gp. of formula -CH=CH- or (IV) (with R = COOH, SO3H or Cl, pref. COOH); X = 1-19C (pref. 2-11C) alkylene, or arylene, pref. phenylene. Pref. the solns. of (II) and (III) are fed in simultaneously by a suitable method, pref. through two concentric tubes, at a rate of 40-100 (pref. 50-80) kg/hr. for soln. (II) and 8-20 (pref. 10-16) kg/hr. for soln. (III); the reaction mixt. is passed to a coolable zone for further reaction.
Patent DE-4006001-A1 (DE)
Title: Dry blends for aq. adhesives with low dry tack, for wallpaper - contg. methylcellulose and carboxymethyl-starch in ratio 3:97-30:70, and opt. plastic redispersion powder and additives
Inventor: HOFFMANN HEINZ-PETER
IPC: C09J103/08
Filed: 1990-02-26
Abstract: Dry blends (I) for the prodn. of aq. adhesives are claimed, contg. methylcellulose (II), carboxymethyl-starch (III), synthetic resin re-dispersion powder (IV) (opt.) and other additives, etc. (opt.); for easy sepn. of the substrates in the dried blend obtd., the ratio (II):(III) = (3:97)-(30:70). (I) are produced by mixing the dry components or by drum- or spray-drying a slurry thereof. Pref. ratio (II):(III) = (4:96)-(20:80), (5:95)-(10:90); (I) contains up to 40 (10-30) wt% (IV), pref. PVAc; (II) has deg. of methylation = 1.3-2.6, and is pref. ethoxylated and/or propoxylated, pref. with deg. of alkoxylation = 0.05-1.5; (III) has deg. of carboxylmethylation = 0.1-0.7 (DS); other additives are fillers, wetting agents and/or preservatives (below 20 wt% in total).
Patent DE-4007691-A1 (DE)
Title: Multiple tobacco strand-forming method - effects preliminary smoothing-out before equalisation zones
Inventor: HEITMANN UWE
IPC: A24C5/18
Filed: 1990-03-10
Abstract: The method simultaneously forms two or more strands of tobacco fibres, esp. for cigarette production. The fibres are delivered in streams (8, 9) and smoothed out in successive equalisation zones by removing the surplus tobacco. Preliminary smoothing-out is carried out before these zones, so that only a small amount of surplus has to be removed. USE/ADVANTAGE - Min. effect on tobacco strand structure during mfr by surplus removal.
Patent DE-4014536-A1 (DE)
Title: Sound damper for pneumatic axial piston motor - has several linearly connected expansion chambers separated by adjustable throttle devices
Inventor: GUIST HANS
IPC: F01N1/16
Filed: 1990-05-07
Abstract: A pneumatic axial piston motor has a control valve which connects at least one of both swept volumes alternately with a high pressure inlet and low pressure outlet. A second damper (16) is arranged between the outlet port and atmosphere, having an expansion chamber and throttle device. The expansion chamber comprises several chambers (26, 27, 28, 29) linearly connected via throttle units (39), which are adjustable and controlled by the pressure difference around them. The flow area of the throttles increases with increasing pressure difference, and effectively closes if the pressure gradient changes direction. ADVANTAGE - Improved sound damping with ice-free running.
Patent DE-4021370-A1 (DE)
Title: Carboxylated syndiotactic 1,2-polybutadiene prepn. - by hydroformylation of syndiotactic 1,2-polybutadiene with hydrogen and carbon mon:oxide, followed by reaction with oxygen
Inventor: WIDEMANN LAWSON GIBSON
IPC: C08C19/00
Filed: 1990-07-05
Abstract: Carboxylated syndiotactic 1,2-polybutadiene (I) is produced by (a) hydroformylation of syndiotactic 1,2-polybutadiene (II) with particle size below 250 microns suspended in an organic medium with hydrogen CO and a hydroformylation catalyst at 25-150 deg.C and at least 101.3 kPA, and (b) reaction of the resulting formyl-(II) with oxygen. More specifically the catalyst is hydridocarbonyltris(triphenyl phosphine)-Co, -Rh or Ir, or a Co carbonyl, pref. the above Rh cpd. (III); reaction (a) is carried out at 65-100 deg.C and 1.4-6.9 MPa, using (II) with particle size below 177 (pref below 105) microns; formyl-(II) is oxidised with atmos. oxygen pref. in the course of a drying process; pref., (II) is reacted with hydrogen and CO in the presence of a Co carbonyl catalyst. USE/ADVANTAGE - (I) is useful as an additive in rubber, e.g. in tyre tread compsns to improve resistance to wear and to heat build-up (carboxylation of II gives improved interaction and coupling with rubber and fillers). The invention provides a relatively simple and inexpensive process (w.r.t. prior-art methods) for the prodn. of (I).
Patent DE-4022336-A1 (DE)
IPC: F26B13/16
Filed: 1990-07-13
Abstract: In a sieve drum device with, arranged on the front end, a fan (6) for creating the suction draught through the sieve drum surface, a dynamic pressure cover (13) is usually arranged in front of the sieve drum jacket (5). This dynamic pressure cover creates in the dynamic pressure space in front of the dynamic pressure cover (13) the dynamic pressure necessary for the uniform treatment of the material web (10). In order to be able optimally to treat material webs (10, 10') of different width on the sieve drum (5), the dynamic pressure cover (13) is either completely removable in the region of the narrower material width (10') or provided with an opening mechanism (22-26), or the dynamic pressure cover (13) is assigned an additional parallel sieve cover (14) which is displaceable towards the dynamic pressure cover. The holes (17, 20, 21) of the dynamic pressure cover (13) and sieve cover (14) are arranged in relation to one another in such a manner that, on displacement by approximately one hole spacing, the majority of the holes of the dynamic pressure cover can be closed by the webs of the holes of the sieve cover, in order to be able to dry the material in the remaining part. 
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Patent DE-4025887-A1 (DE)
Title: Low-voltage protective switch with bimetallic overcurrent trip - whose length is adjustable for variation of current rating at which sliding switch is opened abruptly
Inventor: CRAMER ROLF
IPC: H01H71/74
Filed: 1990-08-16
Abstract: The bimetallic element (1) has one end welded to a carriage (2) cantilevered to a platform (4).  The other end protrudes through a window in a slider (3) movable between two positions. In one position the switch is not tripped, and in the other position the deformation of the element (1) by differential thermal expansion opens the switch contacts.  The rating can be adjusted by means of a screw (16) which raises and lowers the carriage (2) w.r.t. the platform (4). ADVANTAGE - Range of overcurrent ratings is extended by variability of active length of bimetallic element.
Patent DE-4026642-A1 (DE)
Title: Adaptor for rigid clamping of boring bars - seats on large dia. spigot coaxial with usual small dia. tool seating in tool-post
Inventor: PREIS JOSEF DIPL ING
IPC: B23B31/26
Filed: 1990-08-23
Abstract: The adaptor (4) provides the reach for machining deep holes, but allows short bars which can be stored in a conventional tool magazine to be used. It has a tapered bore (6) at the front end to accept the boring bar (5). At the rear end the adaptor has an enlarged dia. which seats on a spigot co-axial with the usual, small dia. sealing in the toolpost (1). The adaptor may be fastened to the toolpost with screws or there may be a clamping system for automatic tool changing. The boring bar is clamped using a drawbar passing through the adaptor and actuated by the tool clamping mechanism of the toolpost. USE/ADVANTAGE - Adaptor provides rigid support for tool when deep holes are to be machined and simplifies automatic tool changing.
Patent DE-4026697-A1 (DE)
Title: Safety system for vehicle occupant -  has electronic inertial sensor with attached detonator for gas reservoir for protective cushion and/or belt tightener
Inventor: DAXER HORST
IPC: B60R21/16
Filed: 1990-08-23
Abstract: The safety system includes air-bag protection and/or safety belt tensioner. The electronic sensor for the impact is mounted in a block (1) with the detonator (4) fired by an electric filament (3). The detonator is placed in contact with the gas generator, to rupture the wall of the generator when fired. Either module can be replaced separately. The sensor is powered by a sec. cell charged via a photocell illuminated via a fibre-optic from a light source. A photo-coupling in the sensor provides a rapid response to sensed impacts. ADVANTAGE - Rapid response safety system; simple maintenance replacement.
Patent DE-4027051-A1 (DE)
Title: Multi-gate RAM with direct and series access - has memory cells in lines and columns, each with direct access, and SAM memory elements
Inventor: INOUE KAZUNARI
IPC: G11C7/10
Filed: 1990-08-27
Abstract: The memory region (RAM) contains a matrix of memory cells (2) with direct access, and another memory region (SAM) with a number of memory elements (31), which transmit data simultaneously with a line of the memory cells, while affoding a serial access to each memory element. In both memory regions numberous bits may be parallel written, or read-out, with both regions divided into blocks corresp. to the number of width. Between the two memory regions are gates (1; T0-T3) for data transmission.  A control (50) responds to the signal, presetting to the data transmission mode and to a signal preventing such data transmission for the gate control. USE/ADVANTAGE - For image processing, with improved multi-gate RAM.
Patent DE-4032959-A1 (DE)
Title: Portable computer integrated into case - incorporates pivoting module unit in lid leaving room in case for portable office printer, modem connector
Inventor: SCHREINER JOSEF
IPC: G06F1/16
Filed: 1990-10-17
Abstract: The portable computer consists of a case, a module part mounted in the case and a keyboard. The entire computer apart from the keyboard is contained in the module part housing. The module part is pivotably suspended. It is pivoted and stopped by a combined spring and damper element (2) and is locked in the deployed position by a slot (3) and bolt (15) arrangement. USE/ADVANTAGE - The portable computer is integrated into a case so that the combination can perform the functions of both a case or 'portable office', e.g. with a printer, modem connector, notebook, etc., and a computer.
Patent DE-4035497-A1 (DE)
Title: Mfg. transporting crates esp. for bottles - in which additional injection pts. are provided in thick section handles and corner pillars and gas is injected with melt before final venting
Inventor: BOISON RAINER
IPC: B29C45/27
Filed: 1990-11-08
Abstract: A process and appts for prodn of injection moulded transporting crates which have large cross-sectional areas in the handles and corner pillar areas. Additional injection points are provided in the large section areas as well as the conventional injection points in the crate base. - High pressure gas e.g. nitrogen is added via special nozzles to the melt stream entering the additional injection points (14) and forms hollow cavities in the alrge section areas. At the conclusion of polymer flow the gas is vented from the cavities.
Patent DE-4039964-A1 (DE)
Inventor: HAUSHERR HEINRICH-RUDOLF DIPL
IPC: E21D9/00
Filed: 1990-12-14
Abstract: The equipment proposed includes a floor-loosening machine (1) with running gear (4) and with a loading shovel (6) which may be fitted with hammer drills, a crusher (2) comprising at least one crushing unit (8) mounted on running gear (11), and intermediate conveyor means (3) connected after the crusher (2). In order to be able to use a normal loader with this equipment, the crusher (2) is located in front of the floor-loosening machine (1) in the unlowered part of the gallery, thus enabling the material extracted to be transferred directly from the loading shovel (6) to the crusher (2).
Patent DE-4040341-A1 (DE)
Title: Container closable by lid - has at least one additional aperture covered by moisture filter with cover for varying effective filtering surface
Inventor: HERRMANN FRANZ DIPL ING
IPC: B65D6/08
Filed: 1990-12-17
Abstract: The additional aperture of the container is located in the area of the opening edge of the container which accommodates the lid, and as covering a downwardly extending edge section is used. This edge section in compnay with the additional aperturer extend up to over the half periphery of the container cover. The edge section also has a wedge-shaped contour. Another version involves the container with a quadratic basic shape, and have the additional aperture (16) arranged in one of its side walls (13), and the likewise quadratic cover (14) is provided on its four sides with edge sections of varying height, the height of which is staged over that of the moisture filter (15). Yet a further version provides for the additional aperture to be arranged in the cover of the container, and having a cover which allows the effective filter surface to be stagelessly covered. USE - As crisper for keeping salads and vegetables fresh in refrigerator.
Patent DE-4041147-A1 (DE)
Title: Prodn. of pure hydrogen@ under high pressure - using molecular sieve in pressure change adsorber at high entry pressure
Inventor: KURZEJA KLAUS
IPC: C01B3/48
Filed: 1990-12-21
Abstract: In prod. of very pure H2 at high outlet pressure, using molecular sieves in pressure-change adsorbers (DWA) in synthesis gas plant with integrated high-pressure synthesis, high-pressure molecular sieves are used in the DWA at entry pressure of 100-200 (150-1200) bars. Crude synthesis gas is pref. obtd. by thermal splitting of raw materials contg. hydrocarbons, e.g. crude oil, light or heavy heating oil, residue oils, tar oils, heavy or light gasoline, liq. gas, refinery gas or natural gas, with O2 or O2-enriched air and in presence of steam, in an auto-thermal non-catalytic reaction followed by a H2S wash with cold methanol, washing the liq. N2, and compression to 100-220 (150-200) bars by a turbo-compressor driven by high-pressure steam. USE/ADVANTAGE - Process is flexible and energy-saving, either for high-pressure synthesis in combination with a synthesis gas producer or for supply to a customer. Process may be integrated with an NH3 or methanol synthesis or with a hydrocracking plant.
Patent DE-4102791-A1 (DE)
Title: Rotary cone valve with housing and valve shaft - has base cone, with cup on seating inlet
Inventor: GONSIOR WOLFGANG
IPC: F16K5/06
Filed: 1991-01-31
Abstract: The rotary cone valve has a housing (4) in which a valve-shaft (2) is pivot-mounted. A cone (12) rotating with the valve-shaft (2) sits tighly against a sealing inlet (42). The rotary cone (12) has a base cone (14) joined to the valve shaft (2), and a cup (16) on the seating inlet (42). The cup (16) has an externally threaded pin (46) screwed into the inner thread (44) of the base cone (14), the cup (16) is adjustable and/or accessible through the interior (19) of the housing (4) and hole, and pref. has a cavity (48) for inserting a tool into. ADVANTAGE - The rotary cone valve and seating are easily adjusted and fitted to reduce leakage.
Patent DE-4103215-A1 (DE)
Title: Mining drill bit - has detachable head with pins secured in drill holes secured by transverse pins
Inventor: TREITZ SIEGFRIED
IPC: E21B17/046
Filed: 1991-02-02
Abstract: The mining drill-bit, partic. of the crown type, comprises a shank into which a head with cutter inserts plugs detacably. The joint between shank (2) and head (1) comprises pins (3) and drillings (4) at right angles to the mating end faces. They are secured in the axial direction by transverse pins (8), fitting in recesses (6) machined in the peripheral surfaces (5) of the pins (3) and in transverse drillings (7), whose axes pass through the internal walls of the drillings (4). ADVANTAGE - Improved resistance to shock-loads.
Patent DE-4105297-A1 (DE)
Title: Coating method for cathode ray tube faceplate - with control of fluorescent material slurry distribution in screen mfr.
Inventor: LIM SEONG-HA
IPC: H01J9/22
Filed: 1991-02-20
Abstract: In a process for applying a coating of fluorescent material to the inner side of the front plate of a cathode ray tube, a slurry is sprayed on from a nozzle (11) while the front plate is mounted on a carrier (20) which is rotated. At the same time, the carrier is pivoted about an axis (22) in an oscillating motion, controlling the action of centrifugal force of rotation in distributing the slurry. ADVANTAGE - Uniform coating improves image quality.
Patent DE-4107849-A1 (DE)
Title: PN photodiode optical amplifier with integral feedback - utilises resistive feedback line to maintain photodiode operating parameters in response to varying light conditions
Inventor: BOSCH MARTIN DIPL PHYS
IPC: H03F3/08
Filed: 1991-03-12
Abstract: The transimpedance amplifier comprises an input section, formed from a double emitter follower (T2,T3) and associated current sources (I2,I3), a cascade section contg. two transistors (T4,T5), a load resistor (R2) and a reference voltage (VK), and an emitter follower output stage with a transistor and a current source (I6). Under no-light conditions, no current flows through the PIN photodiode (PD) and the voltage across the diode-transistor chain (D1-D4) approximates to that across transistors (T1 to T4), forcing the first (T1) off. When light is applied current flows initially through the photodiode via the feedback resistor (RG) until the potential at point E drops sufficiently for the first transistors (T1) to start to conduct, thus maintaining the amplifier input potential, E. USE/ADVANTAGE - Wide dynamic range and high switching speed are suitable for use in vehicle optical bus systems.