baber/WOPTO huggingface dataset:
Patent DE-4009808-A1 (DE)
Title: Ink reservoir control for ink printer - generates interpreter signal which activates cleaning and rinsing process
Inventor: WEHL WOLFGANG DR ING
IPC: B41J2/175
Filed: 1990-03-27
Abstract: The ink chamber (2) of the writing head is fitted with sensor electrodes (12,13), which stretch into it to regulate the ink reservoir and supply in the writing head of ink printing appliances. The contacts (14,15) of these electrodes have an electrical analog process quantity (resistance, capacity) that depends on how full the ink supply system (2,11) is. This generates an interpreter signal (19) in an interpreter circuit (20). This signal activates a cleaning and rinsing process and/or it switches the ink printing appliance off. USE/ADVANTAGE - Effective control of ink supply, has automatic ink reservoir cleaning process.
Patent DE-4017344-A1 (DE)
Title: Antibodies specific to highly conserved aminoacid sequences
Inventor: MUELLNER STEFAN DR
IPC: C12N5/18
Filed: 1990-05-30
Abstract: New antibodies are produced by immunisation with a peptide fragment comprising a highly conserved amino acid sequence of a native protein (i.e. a sequence which is the same in same proteins from different species). The sequence is located on the surface of the native protein, contains charged and/or highly polar functional gps., includes at least one of Asn, Asp, Pro, Gly, Gln and Glu, and is 6-13 amino acids long.
Patent DE-4017575-A1 (DE)
Title: Prepn. of alpha-hydroxy-methyl-aryl-ketal(s) - by electrochemical oxidation of an aryl-methyl ketone with an alkanol in the presence of a small amt. of water
Inventor: HERMELING DIETER DR
IPC: C25B3/23
Filed: 1990-05-31
Abstract: The prepn. of alpha-hydroxymethyl arylketals of formula (I) comprises electrochemical oxidation of an arylmethylketone of formula (II) with an alkanol of formula R2OH (III) in the presence of an auxiliary electrode and 0-5 wt.% water R1 = H, 1-20C alkyl, 2-20C alkenyl, 2-20C alkynyl, 2-20C alkoxyalkyl, 4-20C alkenyloxyalkyl, 3-12C cycloalkyl or 4-20C cycloalkylalkyl, R2 = 1-8C alkyl; R3-R7 = each H, 1-8C alkyl, 1-8C alkoxy, 2-8C alkenyl, 3-8C alkenyloxy, 2-8C alkynyl, 3-8C alkynyloxy, halogen, CN, Ph, PhO, halophenyl, halophenoxy, carboxy, 2-8C alkoxycarbonyl, 3-8C alkenyloxycarbonyl, 3-8C alkynyloxycarbonyl; or R3 and R4 or R4 and R5 together form -(CH2)-n or -(CH=CH)-m opt. substd. mono- or di- substd. by 1-8C alkyl, 1-8C alkoxy and/or halogen n = 1-10 m = 1-3. USE/ADVANTAGE - (I) are intermediates in the prepn. of hydroxyphenones and can therefore be used in the prepn. of plant protecting agents photoinitiators and pharmaceuticals. The process overcomes the disadvantages (e.g. poor yields, multi-stage reactions, rearrangement instead of substitution, long reaction times) associated with previous processes.
Patent DE-4018220-A1 (DE)
Inventor: SIEMANOWSKI WERNER DR
IPC: C07B61/00
Filed: 1990-06-07
Abstract: The invention relates to a process for the preparation of fatty or hydroxyfatty monoesters of isopropylidene derivatives of a polyglycerol. In this process, a C6-C22-fatty acid or -hydroxyfatty acid is reacted with monoisopropylideneglycerol glycidyl ether or diisopropylidenetriglycerol glycidyl ether in a molar ratio of 0.5:1 to 1:0.5 at temperatures of 373-473 K in the presence of a catalyst and the resulting fatty or hydroxyfatty monoester is, if desired, purified by distillation, fractional distillation and/or ion-exchange.
Patent DE-4020516-A1 (DE)
Title: Non-contaminated sample of liquid for analysis
Inventor: TAN SAMANTHA S H
IPC: G01N1/20
Filed: 1990-06-27
Abstract: Device or appts. for obtaining a non-contaminated sample of a liq. suitable for chemical analysis, which removes a sample of liq. from a vessel contg. the liq. and for delivering the sample into a sample bottle comprises (a) a hollow member having a wall structure defining an enclosed plenum; (b) a sample bottle attachment structure defining a passage having a first end portion communicating with the plenum and a second end portion for attachment to a top portion of the sample bottle; (c) hand pumping means for manually creating a partial vacuum in the plenum; (d) a longitudinally extending sample transport tube having a first end portion, a central portion and a second end portion, the first end portion of the tube extending through the passage into the bottle, the central portion passing through the wall structure in substantially air tight relation thereto and the second end portion of the tube being adapted for positioning in the liq. in the vessel; and (e) a partition across the passage supporting the first end portion of the transport tube.
Patent DE-4026496-A1 (DE)
Title: Separable shutter seal on cannon installation - involves pull closure formed as folding bellows between shutter shield and turret housing
Inventor: LENZ GILBERT DIPL ING
IPC: F41A35/02
Filed: 1990-08-22
Abstract: The sealing arrangement is for cannon installation (10) alignable in a height direction, and comprises a folding bellows (18) sealing against a shutter shield (16) over the mouth (12) of a turret housing (14). A pull closure (24) can either separate the parts (18.1, 18.2) fixed to the turret mouth and the shutter shield, or bring them together again. The pull closure runs in a straight fashion above and below the cannon installation (10), and is formed as a hermitically closable seal. The folding bellows (18) seals effectively over the total height aiming angle of the weapon installation. USE/ADVANTAGE - As a shutter seal for the turret mouth of a cannon installation, providing a hermetic water- and gastight seal which can withstand pressure up to 6 bar, and is fully operational in a temp range from -40deg to +65deg.C.
Patent DE-4026976-A1 (DE)
Title: Permanently elastic, thermoplastic joint sealing cpd. - contains bitumen or tar binder, plastic or rubber hardener and mineral filler, with short glass fibres added as stabiliser
Inventor: RUPPRECHT RICHARD
IPC: E01C11/10
Filed: 1990-08-25
Abstract: Sealing cpd. (I) binders (e.g. bitumen, coal tar oil or coal tar, etc.) suitable hardeners (e.g. synthetic resins, rubbers, etc.) and fillers (e.g. sand, sharp sand, powdered quartz, etc.) in a suitable mix ratio. The novelty is that glass fibres of short staple length are added to the mixt. as a stabiliser. USE/ADVANTAGE - Useful, e.g. for repairing cracks in road surfaces, filling joints in bitumen pavements, etc. Provides sealing cpds. (I) which meet the requirements of US Federal Spec. SS-S 1614, 167b or 1401b and Swiss Standard SNV 67 1625a, and which are also sufficiently stabilised to be applied to vertical joints and surfaces, and to be exposed to sunlight without flowing. In an example, suitable glass fibres used are 2-15 mm long. (I) is produced, e.g. by adding 50 g glass fibre (mean length 6 mm) to 1 kg of a heated mixt. of the above components and mixing thoroughly to give a spreadable material. The prod. does not flow when hot and can be applied to walls by trowelling or injected into vertical joints. (2pp Dwg.No.0/0)
Patent DE-4027576-A1 (DE)
Title: Imitation slates for roofing etc. - are produced from polyester resin, glass fibres, talc and pigment and are made into same shapes and e.g. colourings as slates
Inventor: OEHME DIETER
IPC: E04D1/20
Filed: 1990-08-31
Abstract: An imitation slate for roofs or facades is made of coloured, transparent, translucent or opaque plastics with the front and sides similar to slates in surface and section as well as having the same shapes as slates. The material concerned is a mixture of a polyester resin, staple or random glass fibres, talc and pigments, containing 60-70 vol.% glass and 1-10 vol.% talc, based on thee total volume of prod.. The sheets of product are (here) square with cut-off corners (4) and resemble slate in surface finish and edge section. All the usual types are made e.g. for ridges, eaves etc.. The sheets are laid on the boarding (2), orientated correctly and nailed (7) where no holes are drilled first. The whole covering system is made in the usual manner. The particular mixes specified provide the desired mechanical properties. ADVANTAGE - The product has good shear and punching properties so that it can be used without suffering from splitting, cracking or similar.
Patent DE-4029751-A1 (DE)
Title: Piston pump for viscous liq. - has round disc rotatably mounted in housings, with diagonal cylinder bore in disc
Inventor: GLASAUER RUDOLF DIPL ING
IPC: F04B19/02
Filed: 1990-09-20
Abstract: The piston pump has a housing (1) in the form of a rectangular block with a cylindrical recess which receives a close fitting rotatable disc (5). The latter has a diagonal bore (7) for a piston (8), which has its lower end connected to a crankshaft (9). - As the crankshaft rotates it causes the disc to oscillate about its axis (6) so that on the suction stroke the diagonal bore is aligned with the inlet (2), and on the delivery stroke with the outlet branch (3).
Patent DE-4032974-A1 (DE)
Title: Specimen material concentrating appts. - has hollow cylindrical collecting electrode, spray electrode and suction system raising sensitivity of analyser
Inventor: GEUS GEORG DIPL ING
IPC: G01N1/28
Filed: 1990-10-17
Abstract: An arrangement for concentrating specimen material for analysis contains an electrofilter whose collecting electrode (6) acts as an evaporation electrode for the specimen material.  The electrode can be heated and a suction aperture (7) for the specimen material is arranged near it. The suction aperture is mounted laterally on a housing (1) with axially aligned feed and removal openings (2,3). A rod-shaped spray electrode (4) is mounted upstream of the hollow cylindrical collecting electrode. USE/ADVANTAGE - Enables sensitivity of associated analyser to be raised by concentrating sample material by simple mechanism.
Patent DE-4033832-A1 (DE)
Title: Touch-contact operating field for automobile navigation aid - has temporary display of switch pattern on screen used to display navigation map
Inventor: YANO HARUTO
IPC: G06F3/0488
Filed: 1990-10-24
Abstract: The operating field for an automobile navigation aid uses a switch pattern superimposed on the navigation display provided on a screen, which can be contacted by the finger of the user, to initiate the required switch function. The switch pattern is automatically erased after a defined interval from its initial display. The display of the switch pattern is initiated by detecting the proximity of the users finger relative to a defined area of the display screen. ADVANTAGE - Allows display screen to be used simultaneously as touch-contact operating field.
Patent DE-4035867-A1 (DE)
Title: Composite foam prods. e.g. ornamental ceiling strips - comprise layer of polyurethane foamed onto base layer of styrene¨-acrylonitrile¨ copolymer foam
Inventor: STRASSER JEAN-PAUL
IPC: B32B5/32
Filed: 1990-11-10
Abstract: A composite article (I) consists of a base (II) of SAN copolymer foam and a layer of polyurethane (III) foamed onto the base. Also claimed is the prodn. of (I). by forming a layer or sheath or PU foam (III) onto a base of SAN copolymer foam (III) without using a coupling agent. (II) has acrylonitrile content at least 20-35% (pref. at least 60%) and density 20-150 (pref. 30-90) kg/m3, and is produced by extrusion and direct gassing with pure liq. CO2; (III) is rigid PU foam with density 30-250 (pref. 90-180) kg/m3; (I) consists of 2 superimposed layers, pref. with (II) as substrate or core, and (III) as a profiled layer or sheath, esp. a decorative layer or profile; (III) is foamed onto (II) by a continuous or discontinuous process in a mould, to produce a PU foam profile. USE/ADVANTAGE - The invention provides PU foam-contg. composite prods., which are produced without coupling agents, using SAN copolymer foam as a barrier material, and without toxic or environmentally harmful blowing agents; the mechanical properties of the foam are maintained for a longer time (w.r.t. prior-art PU foam composites) due to reduced loss of CO2 by diffusion. Applications include decorative strips for use between walls and ceilings, ornamental sheets for roof linings, etc. (0/2)
Patent DE-4036702-A1 (DE)
Title: Mobile container and pallet for roll=on-roll=off system - uses roller-mounted wedges as lift transfer mechanism
Inventor: SCHATTA MARTIN
IPC: B65D19/42
Filed: 1990-11-17
Abstract: The mobile container and pallet is for a ro-ro system. It has a wedge (5) movable in a rolling bearing (4) and mounted between the ground abutment and the wheel inserted in the vertical guide (2). The wedge is connected by a force-locking mechanism to the pressure converter beam and vertical beam wedge (11) in order to transfer the wedge pressure force arising from the screw spindle, elbow lever (7) or cam shaft (8), perpendicularly to the wedge flanks to the wheels so that a working rolling position of the container and pallet is constantly achieved. USE/ADVANTAGE - A simple energy-saving rapid transport of the containers and pallets is constantly achieved.
Patent DE-4036733-A1 (DE)
Title: Fresh water prepn. from sea water - by using the sea water as a coolant and continuously withdrawing water vapour from the unit
Inventor: SCHMIDT DETLEF
IPC: E03B3/04
Filed: 1990-11-17
Abstract: A fresh water recovery installation comprises a unit constructed in the form of a cooling system using salt water as coolant. The coolant vapour and condensate is H20, which is withdrawn continusouly from the unit, while the salt water in the unit is continuously exchanged. USE/ADVANTAGE - The system enables fresh water to be extracted from sea water much more cheaply than previous systems and can be used in areas of low rainfall and having large areas of land with little or no vegetation near to the coast. In an example Sea water was filtered and degassed by heating and applying reduced press. The low gas sea water was used as coolant eg in compressors, liquifiers and gas turbines and was then pumped under press. into a series of parallel black corrosion-resistant plastic evapn. pipes laid with a slight incline and covering a large area to give optimum utilisation of solar energy. The water vapour was withdrawn continuously from the evaporator, which was operated under reduced press. The water vapour was compressed and liquefied in the liquefier and the residual coolant, consisting of water with a higher salt content, was returned to the sea.
Patent DE-4037837-A1 (DE)
Inventor: LAUFFER LEANDER DR
IPC: G01N33/53
Filed: 1990-11-28
Abstract: The invention relates to cell-free receptor binding tests which permit investigation of the binding characteristics of receptor proteins which are located in the cell membrane towards natural or synthetic ligands. These entail the particular receptor being linked to a suitable carrier molecule, preferably the heavy chain of an immunoglobulin, and being bound to a suitable solid phase via the carrier while retaining its biological properties. <IMAGE>
Patent DE-4104738-A1 (DE)
Title: Wedge for fixing of handle to hand tool
Inventor: AUGE JEAN
IPC: B26B25/00
Filed: 1991-02-15
Abstract: The device consists of a handle (2) and a head (1) of a hand tool where the haft fits into a hole (5) in the head and is held is position by a wedge (4).  On the upper part (6) of the wedge is fitted an anchor ring (7) in a way that the line through the centre of the ring (8) passes through the centre of gravity (9) of the tool and is parallel to the axis (10) of the handle. This enables the tool to be mounted on a display stand with its head facing upwards.
Patent DE-4105135-A1 (DE)
Title: Testing insulating films etc. for pores - by passing between high voltage DC electrode and earthed sleeved roller with netting type spacer wound round roller to prevent contact
Inventor: ELBERT ALFONS DIPL ING
IPC: G01R31/16
Filed: 1991-02-16
Abstract: Plastic films which can be highly charged electrically, e.g. polyethylene, polurethane or similar films, are tested for the presence of pores by a high DC between one positive and one earthed electrode. The test is conducted without contact. The film (or sheet) is passed through the parallel gap between the electrode(s) and the conducting sleeve round an earthed roller, and without touching either. The set-up also uses pref. a mesh type spacer between electrodes and made of plastics or ceramics. Pref., in the apparatus used the film (or sheet) (5) is passed between the tubular electrode (1) with rounded ends (2) and the sleeve (3) round the earthed roller (4). To prevent contact between film or sheet (5) and the sleeve (3) the earthed roller (4) has an insulating spacer in the form of a netting type of material of uniform thickness all round it (4). This spacer (6) maintains a constant gap. The cross-webs (11) between its perforations are disposed obliquely. The h.v. electrode(s) (1) can be adjusted to move it from the roller (4) on a guided bar (80 so as to work with different thicknesses of film or sheet. ADVANTAGE - Used for testing very thin and fragile plastic film/sheets. It is safe and reliable.
Patent DE-4105398-A1 (DE)
Title: Multipolar magnetisation of component
Inventor: WAGNER ROLF
IPC: H01F13/00
Filed: 1991-02-21
Abstract: The method uses a magnetising device with electrical conductors arranged in a serpentine formation in grooves of non-magnetic carrier plates and which comprise webs of reduced cross section which cross the component which is to be magnetised. The webs are arranged in the grooves so as to be movable and during the flow of current are urged against the  component and a component holder. Oppositely magnetised zones are obtained in a magnet, the efficiency of which approaches that of combined individual magnets of different polarity. Current pulses are used to generate the field. The webs rest against the component without an interposed insulating layer.
Patent DE-4105898-A1 (DE)
Title: Prepn. of 4,4'-di:methoxy-2,2'-bi:thiophene, used for oxidn. stable polymers - by dimerising 2,4-di:bromo-thiophene in organic soln. using catalyst pref. copper@, and reacting with sodium methylate
Inventor: WEGENER PETER DR
IPC: C07D333/32
Filed: 1991-02-26
Abstract: Prepn. of 4,4'-dimethoxy- 2,2'-bithiophenes of formula (I) comprises dimersing a 2,4-dibromothiophene (DBT), in the presence of a catalyst, pref. elementary Cu at 110-155 deg.C and in an organic solvent, pref. DMF, to 4,4'-dibromo- 2,2'-bithiophene (DBBT) and then reacting with Na methylate in methanol to (I) (where R= H, halogen or 1-12C alkyl). USE/ADVANTAGE - The prods. have high positive charge per thiophene unit and good electrooptical properties. Polymers obtd. from (I) are more oxidn. stable than the 3,3'-derivs.
Patent DE-4113722-A1 (DE)
Title: Bearing bushes for piston gudgeon pin - are press fit in piston bosses and are positioned in axial direction by stop
Inventor: WIELAND HANSPETER
IPC: B23P15/10
Filed: 1991-04-26
Abstract: The piston has the gudgeon pin supported in bushes (1) which are a press fit in internal bosses (2). Each bush has an external chamfer (4) on its inner end. Each bush is inserted from outside the piston and is pressed in the radially inwards direction into its boss. The bushes are positioned axially by a stop which is inserted between the inner faces of the bosses. This stop ensures that the chamfer of each bush is positioned beyond the inner face of the corresponding boss so that the maximum possible length of the press fit between bush and boss is achieved without the end of the bush fouling the connecting rod (3). USE - Piston for internal combustion engines.
Patent DE-4118643-A1 (DE)
Title: Circular saw with circular blade mounted on end of pivoted arm - can be adjusted by movement of arm longitudinally in addition to vertical pivotal action
Inventor: STELLWAG HEINZ
IPC: B23D45/02
Filed: 1991-06-06
Abstract: A circular saw with a circular blade (5) mounted on the end of a vertically swinging arm (3) which is pivoted on an inverted trunnion (2) to one side of the saw bench (1). The arm (3) can be moved in the direction of its longitudinal axis as well as pivoting vertically. Both movements are restricted by stops (31). On the trunnion is a stop rod mounted on which the stops lie. USE/ADVANTAGE - A cross cut saw with an alternative action from the pendulum type.
Patent DE-4118880-A1 (DE)
Title: Determn. of enzyme substrate or prod. over wide concn. range - by measuring change in absorption properties of enzyme or its complex during reaction, esp. for glucose assay
Inventor: OTTO MANFRED DR
IPC: C12Q1/00
Filed: 1991-06-08
Abstract: Selective determn. of the concn. of dissolved substances (I), which are substrates for or products of enzymatic reactions, comprises measuring the change caused by enzymatic reaction in optical absorption properties of the enzyme (II); the (II)-bound coenzyme (III); the (II)-(III) complex or the (II)-substrate or prod. complex. The concn. of (I) is then determined from the measured change. Device for this process consists of a light source and wavelength-selective detector. Light is passed through a (II)-contg. element and the output signal from the detector is passed to a processing unit for calculation of the (I) concn. Specifically the measured absorbance change is generated by a reduced or oxidised (protonated or deprotonated) intermediate state of (II) or (II)-bound (III). The measurement sensitivity is adjusted by (1) adding an electron (proton) donor or acceptor (A) or (2) electron transfer from an electrode to (II) or vice versa. USE/ADVANTAGE - The method allows (I), esp. glucose, to be determined from extremely low to relatively high concns. (0.1 microM-0.1M) and is not subject to external interference (esp. electromagnetic fields). Applications are in biotechnology, food processing, environmental protection and clinical analysis.
Patent DE-4123936-A1 (DE)
Title: Automatic, non-contact filament prodn. test - has continuous laser monitoring of cross=section and quality, measuring thread double diffraction by phase difference
Inventor: KAUFMANN SIEGFRIED DR
IPC: G01B11/10
Filed: 1991-07-19
Abstract: A non-contact test procedure automatically measures the double diffraction of a thread by phase difference. The cross-section and the phase difference are both measured at the same time from a source of laser light. The dispersed laser light through the filament is employed to determine the cross-section, and at an angle below the filament, the laser light is taken into phase determn. equipment. The proportionate results give the required figures. USE - To automatically supervise during prodn. or in the laboratory, the undrawn filament, or an orientated yarn of polyamide, polyester or polyolefin.
Patent DE-4124497-A1 (DE)
Title: Rotating board for displaying advertisements - has ball bearing to minimise friction so that it rotates inhas ball-bearing to minimise friction so that it rotates in light wind
Inventor: BEYER WOLFGANG
IPC: G09F7/22
Filed: 1991-07-24
Abstract: A device for displaying notices or advertisements consists of a rectangular board with an S-shaped horizontal cross-section. A shaft extends from the lower edge of the board and is mounted in a bearing housing (7). The housing encloses two ball bearings which are spaced vertically from one another so that the bearings can resist any tipping moment exerted on the board. The housing is mounted on a rigid supporting pillar (5). The board can thus rotate about the pillar when acted on by the wind. USE/ADVANTAGE - Display of notices and advertisements. The board is rotated by very slight winds but the bearings can resist the force of very high winds.