baber/WOPTO huggingface dataset:
Patent DE-4106326-A1 (DE)
Title: Nozzle for fuel injection system - has central fuel nozzle surrounded by annular air nozzle
Inventor: PICKERT DETLEF
IPC: F02M69/08
Filed: 1991-02-28
Abstract: The engine with a fuel injection system has an injection nozzle mounted in the cylinder head. Fuel is supplied through a pipe (4) which is connected to a central axial through hole in the nozzle. Air is supplied to an annular nozzle which surrounds the fuel nozzle. The air supply pipe (9) is connected to the air intake (12) at a point upstream of the throttle (11). This design of fuel injection mixes the air and fuel and provides a rich mixture at idling speed. USE - Fuel injection system.
Patent DE-4109952-A1 (DE)
Inventor: SCHNEIDER ERHARD
IPC: F16C7/06
Filed: 1991-03-26
Abstract: The invention concerns a component-alignment device with a sleeve (1) and a rod (2) which can be displaced longitudinally along the sleeve and whose position along the sleeve is determined by a radially acting clip (6, 7). Located between the sleeve and the rod is a longitudinally acting spring (3) disposed in such a way that the device is subjected to a compressive or tensile load when the rod is displaced. This device enables two components to be maintained a given distance apart, the device being capable of exercising a clamping function during assembly of the device by virtue of the longitudinally acting spring.
Patent DE-4112003-A1 (DE)
Title: Liq. crystal mixt. with wide nematic phase range etc. - contg. one or more substd. alkyl bis:phenylene cpds.
Inventor: RIEGER BERNHARD DR
IPC: C09K19/12
Filed: 1991-04-12
Abstract: A liq. crystal medium based on a mixt. of polar cpds. with positive dielectric anisotropy contains one cpd. of formula (I) (claimed), where R = alkyl, oxa-alkyl, fluoroalkyl or alkenyl, each with up to 7C; X = F, Cl, CF3, OCF3 or OCHF2; and L1-4 = F or H. USE/ADVANTAGE - The medium can be used in matrix-, twisted nematic- or super-twisted nematic-cells and has, compared to prior art liq. crystal compsns., a broadened nematic phase range (esp. at low temps.), switchability at low temps. (e.g., for outdoor, automobile or avionic use), increased UV resistance, improved clear pt., lower viscosity at low temps. and improved heat stability. Viscosity at -30 deg.C is 600 mPa.s or less and at -40 deg.C 1800 mPa.s or less, while anisotropy value (delta epsilon) is 3.5 or above and clear pt. is above 65 deg.C. The nematic phase range is -30 to +70 deg.C. (21pp Dwg.No.0/0)
Patent DE-4112010-A1 (DE)
Inventor: KACZYNSKI ULRICH
IPC: G02B21/26
Filed: 1991-04-12
Abstract: A description is given of a limit switch (5) with defined overrun for the protection of the sample and microscope objective in microscopes with motorised focusing. A stored focus position or position of the sample stage (3) can be overtravelled by a fixed amount. The maximum travel path of the sample stage (3) is additionally limited by a drive rod (7) and a short-circuiting switch (21), in order to ensure reliable protection of the sample and objective even in the event of malfunction of the control electronics. 
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Patent DE-4115533-A1 (DE)
Title: Ski-boot with two=part upper - has rear part which is attached to boot by flexible hinge
Inventor: MUNARI GIOVANNI BATTISTA
IPC: A43B5/04
Filed: 1991-05-13
Abstract: The ski-boot has an upper which consists of a first part (3) which fits over the sides of the ankle and around the lower shin.  The upper has a second part (4) which fits around the back of the lower part of the leg and over the region above the heel with its edges fitting inside the edges of the first part (3). This second part (4) is attached stits lower end to the first part (3) by a flexible hinge.  When the securing straps (8) are released the second part (4) can be swung outwards and downwards to facilitate the putting on and taking off of the ski-boot. USE - Ski-boot.
Patent DE-4123062-A1 (DE)
Title: Calcium formate prepn. with high yield and quality - by reacting calcium hydroxide and methanol, distilling off methanol and crystallising the prod., used as e.g. cement setting accelerator, etc.
Inventor: WERLE PETER DR
IPC: C07C53/06
Filed: 1991-07-12
Abstract: The prepn. comprises reacting Co(OH)2 with methanol in molar ratio of 1:5-1:10 in aq. phase at 40-90 deg.C in the presence of a catalystic amt. of a substance which inhibitis the auto condensation of the methanol; distilling OH the MeOH formed and any unreacted methanol when reaction is complete, and recovering the methanoate (I) from the resulting aq. soln. by crystallisation. USE/ADVANTAGE - (I) is used as an auxiliary used in tanning, to produce methanoic acid, as an agent or accelerating setting in the cement industry, as an auxilliary in silation and as a nutritious additive to feedstuffs. The process gives (I) in higher yields (almost qualititative) than previously and space-time yields are also better. It is possible to produce inhibitor-free (I), which is also free from methanol and is thus of high quality
Patent DE-4126498-A1 (DE)
Title: Magnetic recording medium prodn. with good adhesion and uniform properties - by exposing polymer substrate to UV light from excimer source before physical vapour deposition of metal thin film
Inventor: HAGEMEYER ALFRED DR
IPC: G11B5/73
Filed: 1991-08-10
Abstract: The process concerns the prodn. of magnetic recording media based on a polymeric substrate (I), opt. a metal sub-coat (II), a coherent ferrogmagnetic metal thin film (III), produced on the surface by the PVD (physical vapour deposition) process, and opt. a protective top coat. Before deposition of (III) or of (II), if used, (I) is exposed to excimer UV radiation in the 150-400 nm range, with an energy density below the ablation threshold. Pref. radiation from a UV excimer laser is used. USE/ADVANTAGE - This treatment improves the adhesion of the metal to (I) and ensures more uniform properties, even on large areas with high process spreeds. It is useful with e.g. PET, polyimide, polyethylene naphthalate, PEEK, polysulphone, polyether-sulphone, polyphenylene sulphide and thermotropic liquid crystalline polymer substrates. In an example, a 200 nm thick Co80Ni20 film was deposited on a 50 micron PET film by PVD in high vacuum. Before PVD, the PET was exposed to 3 pulses 248 nm excimer laser radiation with an energy density of (A) 5, (B) 10, (C) 15, (D) 26 mK/sq. cm. The peel strength of the metal film of, a control (E) with an untreated PET substrate was (A) 1.2, (B) 2.7, (C) 3.9, (D) over 4.5, (E) 0.9 N/
Patent DE-4129325-A1 (DE)
Title: New bis-(hydroxy- or carboxy-alkyl- or aryl)-benzophenone imino:di:imide(s) - useful as monomers for prodn. of poly:ester(s) and poly:amide(s) with high thermal stability, low Tg, good solubility and thermoplastic processability
Inventor: GREBER GERD
IPC: C08G63/685
Filed: 1991-09-04
Abstract: Cpds. of formula (I) are new, in (J), R1 = 1-6C alkylene, or o-, m- or p-phenylene or benzylidene (both opt. substd. with Cl or lower alk(ox)yl; R2 = OH, 1-20C satd. or unsatd. alkyl (opt. substd. with Cl, OH, NH2, CONH2, COOR3 or NHCONHR3 (with R3 = H, 1-4C alkyl, Ph or benzyl; Y = OH or COOH. Prodn. of (I), comprises reaction of the corresp. diaryl ketones (II) with amines R2NH2 (III). Pref., amts. are 1-10 (esp. 1.05-5) mols. (III)/mol. (II). Also claimed are:polyesters of formula -(CO-Z-CO-O-Ar-O)- or -(O-Z-O-CO-Ar-CO)- (with Z = opt. substd. 1-18C alkylene, o-, m- or p-phenylene or -Phe-X-Phe (with Phe = p-phenylene; X = CH2, CMe2, O, S or SO2), pref. m- or p-phenylene; Ar = residue obtd. by removing Y from (I)); and polyamides of formula -(NH-Z-NH-CO-Ar-CO)- (pref. with Z = -Phe-CH2-Phe-). USE/ADVANTAGE - (I) are useful as monomers for the prodn. of polymers (claimed). (I) are new iminodi-imide monomers, useful for the prodn. of polyesters and polyamides with high thermal stability, good solubility, low Tg and good thermoplastic processability.
Patent DE-4129847-A1 (DE)
Inventor: KRUEGER HARALD
IPC: F41H5/04
Filed: 1991-09-07
Abstract: The invention relates to a light-shaft (3) for fixing on a cellar wall (1) in front of a cellar window (2) lying essentially below ground level. Such light-shafts (3) may crack if filled with earth from outside and hit by a stone in such earth. To prevent this, the light-shaft (3) is provided on its outer side, facing away from the cellar wall (1) with a buffering structure which absorbs impact energy. <IMAGE>
Patent DE-4131159-A1 (DE)
Title: Prevention of hydraulic lock in hydraulic motor -  by radial grooves in gear side faces and grooves in driving shaft
Inventor: HRUSCHKA BERND DIPL ING
IPC: F04C15/00
Filed: 1991-09-19
Abstract: The hydraulic motor consists of two meshing gear wheels (10,11) mounted in a common housing with one of the gear wheels being driven by a shaft (12). Radial grooves (19) are cut in the side faces of the gear wheels or in the abutting side walls of the housing or in both wheels and housing. Circumferential grooves are cut in the parts of the shaft which form the bearings. These grooves prevent the occurrence of hydraulic lock which could block the rotation of the motor and so render it inactive. USE/ADVANTAGE - Servo motor for power assisted steering of vehicle. The grooves ensure that the motor is always operational.
Patent DE-4135459-A1 (DE)
Title: Optical ancillary guide for laser - produces line of variable length and width and is connected to point laser with collector and diffusor lens
Inventor: HOFMANN KARSTEN
IPC: B23Q17/24
Filed: 1991-10-28
Abstract: The optical ancillary device is for a laser for prodn. of a line of variable length and width and the point beam (10) produced by the laser is broken by a plane concave or plane convex lens (1). The divergent beam (12) comes into contact with a cylinder lens (2) which fans it out in the active axis (14). The opening angle of the fanned out beam depends upon the distance of the cylinder lens (2) from the entry lens (1). The width of the beam behind the cylinder lens (2) in its passive axis is only determined by the entry lens. Behind the cylinder lens (2) is a plane convex lens (3). USE/ADVANTAGE - An optical ancillary device for a laser for prodn. of a line of variable length and width, which is purely optical and works with simple components.
Patent DE-4137362-A1 (DE)
Title: Gripper for bottles with crown corks or screw tops - has fast response time for grip and release through piston and gripper sleeve
Inventor: OBERMAYER HEINRICH
IPC: B65G47/90
Filed: 1991-11-13
Abstract: The gripper has a gripper housing with socket for the bottle and an inlet for the pressurised gas which operates a piston guided in the housing, and also has a gripper sleeve between the piston and holder on the housing side. This sleeve (12) forms a one-piece gripper (10) with the piston which is designed as the sleeve base. The gripper is made from a rubber elastic or elastomer material, such as elastomer polyurethane. The sleeve can have indentations (20) round the outer and/or inner circumference. USE/ADVANTAGE - Bottle gripping mechanism with reduced number of wearing parts for a longer service life.
Patent DE-4138033-A1 (DE)
Title: Data transmission between two units coupled to common memory - using logic control unit built into one unit to generate enable signals controlling access
Inventor: MEUSLING ASKOLD DR ING
IPC: G06F15/167
Filed: 1991-11-19
Abstract: Data transmission is provided between two units (1,2) that have access to the same data buffer (3). One of the units (2) has a serial data input and produces byte parallel data transfer to the memory control logic. The control logic stage has connections to a data latch, address control stages, and memory control stages. The operating cycle is defined by two valid timing regions. Memory request signals are generated and the control logic responds to generate the appropriate access signals. ADVANTAGE - Allows considerable variations in data transmission conditions. Both units can operate under independent clock frequencies.
Patent DE-4138493-A1 (DE)
Title: Degaussing circuit for CRT in TV receiver - has demagnetising coil connected between mains and rectifier via switch opened upon switch=on and closed before current use
Inventor: PALATA JAROMIR DIPL ING
IPC: H04N9/29
Filed: 1991-11-23
Abstract: The demagnetising circuit has a mains powered demagnetising coil (4). The mains terminals (1) are connected to a charging capacitor (6) via a rectifier (5). This supplies a constant voltage (U1) to power the receiver (8). The demagnetising coil (4) is connected between the mains terminals (1) and the rectifier (5) via a switch (S). The switch (S) is opened on switch on (t1) and is closed before the actual current consumption (i1) of the circuit (7) driving the receiver (8). ADVANTAGE - Smaller less expensive circuit with lower power loss.
Patent DE-4140776-A1 (DE)
IPC: H01H33/666
Filed: 1991-12-06
Abstract: A metal-encapsulated, gas-insulated switching installation (1) has a switching-chamber housing (4) and a cable-connecting housing (16) which is connected to the switching-chamber housing (4). Located between the two housings (4, 16) is a supporting insulator (14) which is provided with through-openings (22) for the insulating gas. Furthermore, a channel (24) is provided which starts in the cable-connecting housing (16) close to a connecting body (19) for the cable conductor (18) and which opens, after being deflected approximately through a right angle, in the switching-chamber housing (4). The channel (24) is effective in the case of interfering arcs in the cable-connecting housing (16) and favours extinguishing of the interfering arc (21) or moving it into the larger switching-chamber housing (4) which is provided with a device (23) for pressure relief. The described switching installation (1) is particularly suitable for the medium-voltage range up to 36 kV. <IMAGE>
Patent DE-4142480-A1 (DE)
Title: Absorber element used to absorb electro-magnetic waves - comprises base made of electrically insulating material contg. finely divided dielectric and/or magnetic material
Inventor: BETZLER WALTER
IPC: H01Q17/00
Filed: 1991-12-20
Abstract: Absorber element has a base made of an electrically insulating material contg. a finely divided material having dielectric and/or magnetic properties. The average density of the conducting substance increases from the side of the element bombarded with electromagnetic waves to the opposite side. The base (11) made of a porous or ceramic material is of a plate-like shape and its surface has a conductive deposit (13) included in the wall surfaces of the pores (12), whose thickness of low dielectric behaviour, lowest on the side of the base bombarded with electromagnetic waves and increases to the opposite side. Prodn. of the absorber element is also claimed. The element is pref. produced by dipping the base into a chemical bath to deposit a metal onto the surface of the base. A metal layer is formed which increases from the bombarded surface to the opposite surface. USE/ADVANTAGE - The absorber element is used to absorb electromagnetic waves in a wide band width.
Patent DE-4200670-A1 (DE)
IPC: B01D5/00
Filed: 1992-01-14
Abstract: A method for disposing oil-containing filter cakes of filtering agents such as kieselguhr and Fuller's earth, used in mechanical rolling oil filtration comprises recovering rolling oil from the filter cake by vacuum drying the cake to vaporise the oil and subsequently condensating the oil vapour. An apparatus for carrying out the method comprises a drying container (1) for the filter cake with a filling neck (2) in an upper wall (4) and an emptying neck (5) in a funnel-shaped bottom wall (7), a combined heating and cooling circuit (8) for the drying container (1), a condenser (10) connected to the drying container (1) through a vapour line (9), a reservoir (11) for collecting oil from the condenser and a vacuum pump (13) connected to the oil reservoir (11) through a suction line (12). <IMAGE>
Patent DE-4203446-A1 (DE)
Title: Extractor for ferro-magnetic particles held in suspension in cleaning fluid - has curved duct which encloses rotor provided with magnetic pole pieces
Inventor: MARTIN THOMAS
IPC: B03C1/12
Filed: 1992-02-07
Abstract: The extractor for removing ferro-magnetic particles from a cleaning fluid in which they are held in suspension, consists of a curved duct (2) which has a cylindrical inner wall (3). The wall (3) encloses a rotor which has magnetic pole pieces (4) arranged around its periphery. These pole pieces are arranged so that there is a very small gap between their outer ends and the inner surface of the wall (3) whilst the distance between adjacent poles in the circumferential direction is relatively larger. The fluid holding the particles in suspension flows into the duct through an inlet (9) and the greater part of the fluid flows out through the outlet. USE/ADVANTAGE - Removal of ferro-magnetic particles by a continuous process instead of the usual intermittently operating methods.
Patent DE-4215773-A1 (DE)
Title: Filtering and absorption device for contaminated and infected air - is fitted with air inlet and outlet covers so that central filter can be inserted and withdrawn from either end
Inventor: GERIGK WOLFGANG
IPC: A62B11/00
Filed: 1992-05-13
Abstract: A closed cylindrical filter (15) extracts contaminants from the air driven by a fan (14) through a housing (1) with inlet and outlet covers (2, 3) secured by clips (4). The inlet cover (2) incorporates an integrated cyclone filter (7) for dust extn. and opt. a heat exchanger. Openings for cables, mechanical or pneumatic control and measuring lines, are provided between the inlet and outlet covers. The outlet cover (3) discharges air from a central port (6) in a space contg. measurement instruments e.g. a differential pressure indicator (10) and a detector (11) of pollutants. A carrying handle (16) is secured to the housing. ADVANTAGE - Contains all important equipment for air decontamination but is easily assembled and dismantled by operators without specialised knowledge.
Patent DE-4216586-A1 (DE)
Title: DC multiple unit train - uses power from DC conductor rails in electrified sections and push=pull locomotive generator in non-electrified sections
Inventor: HAACK HELMUTH
IPC: B61G5/10
Filed: 1992-05-20
Abstract: A DC-powered multiple unit train for reversible operation runs from DC conductor rails in electrified sections and with a locomotive in push-pull mode in non-electrified sections. Of the power from the DC conductor rails, some goes to the driving motors and the rest is inverted and passes to the train's power network. In the non-electrified sections, the locomotive generator provides power through a main busbar. The motors are mounted on power bogies. The driver's cabin has controls for selecting the appropriate mode of operation in the two sections. The power bogies are suitable for speeds of more than 120 km/h and the individual axles have gearboxes. The automatic coupling between coaches contains the busbar connection. ADVANTAGE - Versatile train which can run on electrified and non-electrified railway sections without the need for a locomotive change.
Patent DE-4220600-A1 (DE)
Inventor: STREHLER JOSEF
IPC: B64C1/14
Filed: 1992-06-24
Abstract: A sliding window arrangement, especially for aircraft cockpits, has two guide strips (5) which are arranged on opposite sides of a window opening (2) and in an extension thereof. A sliding window (3) which latches in the window opening in the closed position is guided in the guide strips. In this case, a pressure strip (12) is allocated to each guided longitudinal edge of the sliding window (3). This pressure strip (12) rests on that limb of the guide strip (5) which is opposite the window opening (2) and presses the sliding window into the window opening (2) or against the limbs (8) of the guide strip. The arrangement is characterised by a low, uniform sliding resistance and makes possible finely adjustable intermediate positions of the sliding window. <IMAGE>
Patent DE-4223326-A1 (DE)
Inventor: MIKKELSEN KIRK J
IPC: B65D85/00
Filed: 1992-07-16
Abstract: A carrier or container for silicon wafers or other substrates such as semiconductor wafers memory disks and flat panel displays requiring chemical processing, is characterised by having a carrier base portion coated with a layer of diamond formed by chemical vapour deposition, eg from methane and carbon tetrachloride as sources which is chemically inert and avoids problems associated with materials such as plastics which are attacked by chemicals. Figure 1 illustrates a typical megafine wafer carrier 10 which is to be coated whilst Fig 2 is a detail section of an enlarged portion of such a carrier 60 having a carrier base 61 covered by a coating 62 of diamond-like material. Ribs 63 in the carrier sidewalls are for maintaining the wafers separated from each other and spaces 64 between the ribs are where the wafers are confined and the slots 65 facilitate movement of processing fluids onto and away from the wafers being processed. Other embodiments are illustrated, one being particularly useful for transporting wafers; another being a two part box or container; another being in multiple sections of moulded parts. Yet another is an individual wafer carrier for a single wafer. The carrier base may be steel, polymeric, or a matrix of one material with discrete fragments of another material embedded therein. The diamond coating may have a thickness of 0.05-1 mu m. <IMAGE>
Patent DE-4226809-A1 (DE)
Title: Lead rechargeable battery with housing accommodating several cells - has double lid with gas collection spaces having filling and closing openings for each cell provided with sealing plug.
Inventor: EISENACHER WERNER
IPC: H01M50/367
Filed: 1992-08-13
Abstract: The battery has a hollow cylindrically designed sealing plug (1) screwed securely in a tubular opening (4) of a top lid (3) of the battery. The plug extends with its lower end until it reaches a tubular opening (7) of a lower lid (6). Each cell has ventilation openings to one of the gas collection spaces. A first ventilation opening is formed by an annular gap (11, 12) between the plug wall and the tubular opening of the lower lid. Also a second ventilation opening (14) is formed by a drilled channel leading through the plug wall. ADVANTAGE - Gives reliable degasification without allowing escape of electrolyte, also when tilted.
Patent DE-4227355-A1 (DE)
Inventor: SCHWAB MICHAEL DR
IPC: C08G63/692
Filed: 1992-08-19
Abstract: Water-dilutable (water-thinnable), two-component coating composition containing     1) a polyisocyanate component and 2) a polyester resin built up from the starting materials (a), (b), (c), (d) and (e) or ester-forming derivatives thereof, where the ratio between the total of the hydroxyl equivalents and the total of the carboxyl equivalents in the reactants is between 1:0.5 and 1:2.0, where   (a) is at least one dicarboxylic acid which is not a sulphomonomer,   (b) is from 0 to 15 mol% of at least one difunctional sulpho or phosphonomonomer whose functional groups are carboxyl and/or hydroxyl groups, containing at least one sulphonate or phosphonate group,   (c) is at least one glycol, (d) is from 0 to 40 mol% of a higher-functional compound (functionality > 2) whose functional groups comprise hydroxyl and/or carboxyl groups, and   (e) is from 0 to 20 mol% of a monofunctional carboxylic acid, where the amounts of free hydroxyl groups are between 30 and 350 milliequivalents of OH/100 g, and the content of free neutralised and/or neutralisable acid groups is between 5 and 350 meq/100 g.   These coating compounds are particularly suitable for the production of primers, fillers, topcoats and single-coat finishes.