baber/WOPTO huggingface dataset:
Patent DE-3935743-A1 (DE)
Title: Rotary pump with axial flow impeller - has centrifugation adapted for handling of contaminated water
Inventor: KASPERSKI ERHARD
IPC: F04D3/02
Filed: 1989-10-27
Abstract: The rotary pump handles contaminated water.  The impeller (5) is formed as a full helix (7,8) behind an (12) opening through which fluid enters the housing. A negative pressure chamber (15) is formed radially from the housing and axially from a first helix section, with a pressure chamber (16) formed with the other helix section to displace the fluid through the outlet (19). USE/ADVANTAGE - Centrifugal pump suitable for handling contaminated waste water.
Patent DE-3942387-A1 (DE)
Inventor: FISCHER FLORIAN
IPC: C30B31/20
Filed: 1989-12-21
Abstract: The invention relates to a transport system for transporting containers (11) or goods inside and along an essentially vertical tube (5, 6) while the containers (11) rotate about the axis of the tube. To obtain a simple construction despite the confined space, the tube is designed as a vertical tube (5) to which is connected a threaded sleeve (6) secured to the end of the transport section so as to remain fixed during rotation. The container (11) has noses (14) which engage in longitudinal guide grooves (15) in the tube (5). These noses (14) also engage in the threaded groove (16) of the threaded sleeve (6). The containers (11) have couplings, e.g. a front toothing (13), at the top and bottom, which transmit a rotary movement from container to container during the transport of a train of contiguous containers, but also allow the containers (11) to be separated from each other in the direction of the axis of the tube. During one rotation of the tube (5), the containers are successively screwed through the threaded sleeve (6), which accomodates at least one container (11). The transport system is particulary suitable for transporting silicon monocrystals in the container (11) through the heavy water tank (2) of a research reactor in order to dope the silicon monocrystals by neutron bombardment.
Patent DE-4017549-A1 (DE)
Title: Geometrically invariant image generation for laser raster microscope - involves clocking receiver signals into image memory according to detected scan position
Inventor: SCHOEPPE GUENTER
IPC: H04N1/047
Filed: 1990-05-31
Abstract: A method of geometrically invariant image generation in light raster microscopes involves clocking the transfer of receiver (8) signals into an image memory (12) via a repeater system contg. a scaling arrangement and which detects the scan position of a scanning beam object (17). The repeater system optically forms the tangent of a deflector elements (3) angular position and hence the signal transfer timing signal and drives the image memory accordingly. USE/ADVANTAGE - For generating correct information about a specimen in a light, esp. laser, raster microscope, which is reproducible over long periods enabling geometrically invariant image formation.
Patent DE-4018189-A1 (DE)
Title: Detection movement of vehicle over surface - using two=dimensional motion sensors, pref. optical grids, and calibration method for linear and curved motion
Inventor: WIDMANN FRIEDRICH DIPL ING
IPC: G01P3/36
Filed: 1990-06-07
Abstract: The method of detecting the movement of a vehicle over a surface involves using two-dimensional movement sensors, pref. optical grids for detecting relative motion over a statistically rough surface. Sensor carrier motion causes sequences of pulses to be generated whose pulse rates reflect variations in the direction of motion and which are converted into angle and distance increments. The relationships between the pulses and increments are established by detecting and correcting pulses for linear motion, for curved motion along a path about a defined angle and finally for motion along a path of defined length. ADVANTAGE - Ensures extremely accurate displacement and angle measurement irrespective of manufacturing or installation tolerances.
Patent DE-4018701-A1 (DE)
Title: Side bow for spectacle frames - plastic bow has metal insert which in arm section is elastic and in ear section is deformable
Inventor: AIBA MITSURU
IPC: G02C5/18
Filed: 1990-06-11
Abstract: Side bow (1) for a spectacle frame has an arm, the front end of which is hinged (11) to a lens frame (9). At the other end of the side bow an ear piece (7) is formed. The bow (1) comprises plastic with an embedded metal alloy core (3) which in the arm section (4) is highly elastic, but in the ear piece section (5) is plastic to allow deformation. The cross-section of the metal core (3) has a given relationship to that of the plastic (2). USE/ADVANTAGE - In spectacle frames to give  comfortable wear yet be fashionable.
Patent DE-4018902-A1 (DE)
Title: Push-button for foil type keyboard - subjects contact carrier to force applied via U=shaped and leaf springs
Inventor: SACHS ECKEHARD
IPC: H01H13/52
Filed: 1990-06-13
Abstract: A push-button electrical switch, suitable for inclusion to a foil keyboard panel, has a base (8) that supports a fixed contact (14). A movable contact pad (15) is formed on a pressed metal element (1) formed as a cantilever with a centre sector. The outer sections of the contact carrier are rpessed against by projections from the cap (7). The end connects with a U-shaped spring loop (2) that deforms under load and which generates a reset force. ADVANTAGE - Responds to low force; short actuating distance.
Patent DE-4022766-A1 (DE)
Title: Needle punching batts directly from spinning machine - involves heat-sealing batts surface after spinning to allow them to be transported to needle loom
Inventor: SCHNEIDER HEINRICH DIPL CHEM
IPC: D04H3/011
Filed: 1990-07-18
Abstract: Drawn thermoplastic fibres from a spinning plant are deposited in a batt which is then sealed thermally on both sides. Subsequently a lubricant is applied and the batt is consolidated by needle punching. The thermal sealing pref. penetrates no more than 0.2mm deep and can be performed by heated calender rollers. The fibres can be polyolefins, polyamides or polyesters, polypropylene. The surface sintering at the fibre crossover points can be broken by the needle punching process. USE/ADVANTAGE - Surface sintering gives sufficient strength to allow the batt to be transported at high speeds to the needle punching machine.
Patent DE-4027984-A1 (DE)
Title: Gas flow control for multiple burners
Inventor: BERLINCOURT DON A
IPC: F23N5/20
Filed: 1990-09-04
Abstract: The gas flow control has a relay operating a valve in response to a signal indicating the presence of the flame for each burner. The magnetic valve can be operated for a timed duration for an interval which is sufficient to allow the burner ignition, with the valve shut down when no flame is detected, with each burner ignited separately in response to a supplied start signal. The start signal for the next burner is only supplied when the flame presence signal is provided for the previous burner.  Pref. each burner has a respective electrode lying in the path of the flame, providing the flame presence signal.
Patent DE-4031429-A1 (DE)
Title: Power returning coilable tape rule - with improved connection between spring and blade provided by abutting shoulders on tongue of spring
Inventor: BICKFORD DUDLEY V
IPC: G01B3/10
Filed: 1990-10-04
Abstract: The power returnable tape rule has an improved connection between the outer end of the power spring and the inner end of the slidable rule blade provided by an interchanging element. The rule blade has an elongated aperture adjacent its inner end with the margins of the blade defining the aperture including opposed inwardly extending finger portions. The tongue has spaced transversely extending shoulders facing in opposite directions. - It extends along the upper surface of the rule, downwardly into the aperture under the fingers and upwardly from the aperture and forwardly along the upper surface of the rule blade. The shoulders on the tongue of the spring abut the margins of the aperture adjacent the finger portions in either direction of relative longitudinal movement to limit such movement and retain the two elements in assembly.
Patent DE-4032577-A1 (DE)
Title: Cement mortar spreading tool - has rear wall with opening controlled by adjustable blade to form even layer
Inventor: RUEBSAM ROLAND DIPL ING
IPC: E04G21/20
Filed: 1990-10-13
Abstract: The tool, for distributing mortar evenly over a course of brickwork, has two side walls (5) connected by an end wall (8) and a cross-member. An angle section (7) attached to the lower edge of each side wall fits over the edges of the brickwork and guides the tool. The tool has two longitudinal skids to support it on the brickwork. A ploughshare (9) attached to the tool spreads the mortar over the brickwork and an opening in the rear wall (8) with an attached blade of adjustable height controls the thickness of the layer of mortar. USE/ADVANTAGE - Tool for spreading mortar in a layer of defined thickness.
Patent DE-4035278-A1 (DE)
Title: Refrigerator with evaporator and vapour injector - has condenser fed with mixt. of vapour from three heat exchangers successively discharged cooled, and refilled
Inventor: SDROJEWSKI JOERG
IPC: F25B1/08
Filed: 1990-11-07
Abstract: Liq. propane is evaporated abstracting heat from a working circuit (2) for transfer to a condenser (49). Heat exchangers (10-12) with heating elements (16-18) within coils (19-21) are connected in parallel between the outlet (3) of the evaporator (1) and the inlet (32) of a vapour injector (33), whose nozzle (34) emits a jet at sonic velocity. The coils and their bypasses (25-27) are opened and closed in turn by magnetic valves (14, 16-, 39, 41, 45-47; 29-31) so that portions of vapour are mixed in the injector and delivered to the condenser. ADVANTAGE - Low-end operation with vapour jet integrated in the coolant circuit.
Patent DE-4037523-A1 (DE)
Title: Separate recovery of metal and coating polymer from composite - by dissolution of polymer with alkyl benzene solvent for non-polar and (methylated) THF and/or (methylate) dioxan for polar layers
Inventor: GARTZEN JOHANNES PROF DR
IPC: C09D9/00
Filed: 1990-11-26
Abstract: Recovering metals and coatings from composite materials by dissolving the coating on the metal with solvents, whereby non-polar layers in the composites are dissolved with dimethyl- and/or trimethyl- and/or tetramethylbenzenes and/or ethylebenzene and/or isopropylbenzene with heating to 40-280 deg.C pref. 75-220 deg.C and esp. 138.4-204 deg.C, opt. under pressure and with a residence time of 0.5-360 min., pref. 5-120 min. and esp. 5-60 min., and polar layers in the composites are dissolved with THF and/or methylated derivs. of this and/or dioxan and/or methylated derivs. of this with heating to 40-200 (60-280)deg.C, opt. under pressure, and with a residence time of 0.5-360 (5-60)min. USE/ADVANTAGE - The process is esp. useful for separate recovery of the metal and plastics components in composite metal and plastics laminate
Patent DE-4038293-A1 (DE)
Title: Nucleic acid adduct for in situ hybridisation to give nucleic acid sequences - comprises water soluble basic polymer and nucleic acid sequence formed by polymerase chain reaction and/or reverse transcriptase reaction
Inventor: SCHLECHTE HORST DR
IPC: C12Q1/6841
Filed: 1990-11-28
Abstract: Nucleic acid adduct comprises (a) a water soluble, basic polymer, adsorbed on cells in histological or cytological prepns.; and (b) a nucleic acid sequence contained in the cells and is formed by a polymerase chain reaction and/or reverse transcriptors reaction. Adducts are amplifiable and there is a bond between the two components.       Basic polymer is pref. polyethylene-imine or DEAE-dextran.       USE/ADVANTAGE - Can be used for in situ hybridisation to give special nucleic acid sequences. Double-stranded or single-stranded DNA or RNA, of viral or cellular origin, is bound in situ to the basic polymer and the adduct is amplified by a polymerase chain reaction and hybridised with a labelled gene probe. In an example, cervix carcinoma tissue was fixed with neutral formaldehyde soln. and embedded in paraffin. A slice of this was placed on a microscopic slide which had been pre-treated with 3-(triethoxysilyl)-propylamine. This was incubated with 5% polyethylene imine (mol.wt. 30,000-40,000) in water for 30 mins. at 37 deg.C. Glass carrier was rinsed with water and dried. Cover slide was placed over the tissue and a conventional polymerase chain reaction was carried out by dipping the prepn. in a thermostatic bath, followed by hybridisation with biotin labelled human papilloma virus type 16-DNA. (Dwg.0/0)
Patent DE-4100708-A1 (DE)
Title: Spherical housing contg. reflex horn for sound reproduction - has centrally divided horn with internal space shaped to minimise distortion and over modulation of acoustic waves
Inventor: SCHWANITZ ROBERT
IPC: H04R1/22
Filed: 1991-01-11
Abstract: The largely circular or elliptical cross-section of the space within the sphere enables sound to be guided directly to the shortest possible path. The horn is divided centrally so that the reflex system may attain a length of 30 cm to 3 m. Several applications are depicted in cross-section with one or more active or passive acoustic transducers, either direct or reflex. ADVANTAGE - Efficiency is increases, standing waves are avoided and significant boost in lower frequency range is achieved along with better aural impression at medium and high frequencies.
Patent DE-4111997-A1 (DE)
Title: Polar liq. crystal compsns.
Inventor: RIEGER BERNHARD DR
IPC: C09K19/42
Filed: 1991-04-12
Abstract: Liq crystal media based on a mixt of polar cpds with positive dielectric anisotropy contain one or more 2-phenyl-pyrimidine derivs of formula (I): L = H or F; X = F, Cl or CF3; R = 1-7C alkyl, oxaalkyl, fluoroalkyl or alkenyl.
Patent DE-4120969-A1 (DE)
Title: Refill cartridge for pen case - consists of formed body of coating material, pushed into case
Inventor: LEPSIUS TILWIN
IPC: A45D40/16
Filed: 1991-06-25
Abstract: The cartridge is used to refill a pen (14), e.g. for adhesive, lipstick, deodorant, shaving soap, or coloured pen. It has a case (15), with a cap, and an opening at one end, and a longitudinally axially moveable piston, which moves the contents to apply a coat. The refill consists of a formed body (2) of the material (23), which conforms to internal volume and shape of the case. It is pushed/pulled into the open end of the case. The body is contained in a tube (22), and the piston is used to move the body from the tube to the case. ADVANTAGE - Re-use of pen.
Patent DE-4121231-A1 (DE)
Title: Powdery snow deflector for snow plough - is arranged along upper edge of ploughshare and has deflection vane movable between two end positions for drivers clear view
Inventor: SCHMIDT ALFRED DIPL ING
IPC: E01H5/06
Filed: 1991-06-27
Abstract: The deflection vane in the lower end position (U) at least partly locates on the ploughshare (1), and in the upper end position (C) is raised upwards from the ploughshare so that between he latter and the deflection vane (9) a flow channel, issuing downwards, is formed. The deflector is fitted along the upper edge of the ploughshare (1), and the latter is provided with an extension  along its upper edge. On the rear side of the share, the deflector vane, corresp. to the extension of the share (2), has an arched form at least on its underside pointing to the share extension. USE/ADVANTAGE - For snow plough, to disperse powdery snow  during operation so that the vehicle operator has a clear view forward.
Patent DE-4125866-A1 (DE)
Inventor: KAMM ROLAND
IPC: A47L1/08
Filed: 1991-08-03
Abstract: The invention concerns a device for cleaning hard surfaces, in particular windows, comprising a slit-shaped suction nozzle (6) along which is mounted a flexible wiper lip (27) which extends out beyond the suction nozzle. In order to reduce the power consumption of the suction equipment and also to improve the cleaning action of the device, the invention calls for the wiper lip to be mounted on one wall (4) of the suction nozzle and to be pulled against the opposite wall (2) of the nozzle by the action of the stream of air sucked in through the nozzle, thus closing off the nozzle.
Patent DE-4130078-A1 (DE)
Title: Protein modified composite contg. cement, polymer and glass fibres - comprises aq. soln. of protein and hardener, for high mechanical and chemical properties in building industry
Inventor: VOLLHARDT DIETER DR
IPC: C04B28/02
Filed: 1991-09-06
Abstract: The components contain an aq. soln. with 2-25 wt.% of protein and 1-80%, w.r.t. protein solids content, of a hardener. Pref. protein is casein or gelatin, and the hardener is an aliphatic or aromatic aldehyde, cyanuric acid or chromate ions. USE/ADVANTAGE - Esp. high chemical stability is obtd. In an example, a mixt. of 3000 g of casein, 760g of borax, 2g of "E 30" (RTM : Na alkane sulphonate of medium chain length) and 21 l of water was stirred for 4.5h at 50-60 deg.C. The soln. was used after cooling, or could be kept for weeks after addn. of 60 g of phenol. 3 wt.% of propionaldehyde was added to the casein soln. A mixt. of 1000 g of Portland cement, 30 g of chopped fibres of E-glass and 25 g of the casein/propionaldehyde soln. was formed into 160x40x10 mm mouldings (A). C.f., mouldings (B) of the same size were made from a mixt. of 1000 g of Portland cement, 400 g of water and 30 g of chopped glass fibres. After 70 days at room temp. in a moist atmos., the flexing strength of the mouldings (A) was higher by a factor of 4.5 than that of mouldings
Patent DE-4131551-A1 (DE)
Title: Aq. dispersions of amino- or amido-polysiloxane(s) - contain alkyl-poly:glycoside(s) as dispersants, and are useful for treatment of fibre materials, esp. textiles
Inventor: CHROBACZEK HARALD DR
IPC: C09K23/56
Filed: 1991-09-21
Abstract: Aq. dispersions (I) contain (a) an organopolysiloxane with, on average, at least one Si-C linked gp. R contg. amino or amido gp(s). and (b) one or more dispersants, at least one of which is an alkyl-polyglycoside (II). Pref. N-contg. polysiloxanes (a) are commercially available or otherwise known prods., as described, e.g. in EP342830, US 4620878, WO8808436, DE3926005, EP-441530 etc. (b) are commerically available prods., e.g. as described in DE 2841623, DE3925846 and EP-0362671. USE/ADVANTAGE - (I) are useful, opt. after diluting with water, for the treatment of fibre materials, esp. textiles, opt. with addn. of normal fibre-treatment additives. Textiles treated with (I) have an agreeable soft feel and a reduced tendency to yellowing. Alkyl-polyglycoside emulsifiers are more environmentally acceptable and biodegradable than ethoxylated alcohols etc., and enable the prodn. of (I) in the form of esp. stable micro-emulsions. In an example, (a) was a polysiloxane with side-chains contg. piperazine rings, as described in EP-0441530, p 6, line 55; (b) was a mixt. of alkyl-polyglycosides of formula L-O-Zn (with L = 10-12C alkyl; Z = oligo-glucose unit), used as a 46 wt.% aq. soln. (viscosity 660 mPa.s.). Mixt. of 15 pts. wt. (a), 20 pts.wt. soln. (b), 63 pts.wt. water and 2 pts. wt. 60% AcOH was heated to 70 deg. C while stirring, kept at this temp. for 5 mins. and cooled to give a clear, yellowish microemulsion (I) with nephelometric turbidity = 28. Textiles treated with (I) by the usual methods had a pleasant solt 'texture'.
Patent DE-4137304-A1 (DE)
Title: Bass sound generating system for motor vehicle audio installation - has loudspeaker and fan mounted on prefabricated synthetic base mounted in boot using existing threads
Inventor: SCHNEIDER BERNDT PETER
IPC: B60H1/00
Filed: 1991-11-12
Abstract: The system includes a prefabricated synthetic base (1), a base fixing screw (2), a bass loudspeaker (3) with a spacing ring (4), a loudspeaker protection grating (5) and fixing screw (6) and nut (7) as well as a bass reflex tube (8) with a flange (9), a fan (10) and a fan fixing screw (11). The system is fixed into the boot by wedging the lower synthetic base part on the rear wall of the rear seats, and by screwing the upper synthetic base part into existing threads in the parcel shelf. ADVANTAGE - Requires no modification to the motor vehicle construction.
Patent DE-4138557-A1 (DE)
Title: Deformable mirror for high energy laser machining device - has hermetic seal between mirror surface and mirror housing containing pre-assembled translators at rear of mirror
Inventor: SCHMIEDL REINHARD
IPC: G02B26/08
Filed: 1991-11-23
Abstract: The deformable mirror allows the beam geometry and/or the cross-sectional wavefront of the high energy laser beam to be adjusted. It comprises a deformable mirror plate (13) across the front of a housing (12) containing a number of pre-assembled translators (19) coupled to respective pins (18) provided at the rear of the mirror plate (13). Pref. the mirror plate (13) is provided by the base of a pot (14) with a peripheral wall (16) which axially abuts the mirror housing (12) and which is clamped against the latter via an outer ring (38) with a radial lip (39) engaging the outer edge (15) of the mirror plate (13). ADVANTAGE - Simple assembly and dismounting with effective hermetic seal between mirror surface and mirror housing.
Patent DE-4141860-A1 (DE)
Title: Newspaper covering layer with good printing lustre - comprises mixt. of pigments consisting of clay, amphoteric copolymer matrix mfd. by copolymerisation of unsatd. amine with butadiene]
Inventor: SHIMAZOE TAKAHIRO
IPC: D21H17/00
Filed: 1991-12-18
Abstract: A coating compsn. (I) for newspaper is claimed, contg. 100 pts.wt. pigment and 3-50 pts.wt. amphoteric copolymer latex (II) as pigment binder (expressed as amt. of solid). More specifically, (I) also contains up to 15 (pref. up to 10) pts.wt. water-soluble polymer (III), such that the total amt. of pigment binder (solids) is 3-50 (pref. 5-40) pts.wt./100 pts.wt. pigment; (II) is obtd. by copolymerisation of a mixt. of (a) 20-50 wt.% conjugated aliphatic diene, (b) 10-74 wt.% aromatic vinyl monomer, (c) 0.5-20 wt.% unsatd. acid monomer, (d) 0.5-20 wt.% of a monomer which introduces a gelatinisation pt. into the copolymer (pref. an unsatd. amine, causing the polymer to gel) and (e) not above 40 wt.% comonomer, or by copolymerisation of a similar mixt. (without d), using (f) an amphoteric surfactant. USE/ADVANTAGE - (I) is useful esp. for paper used for multicolour offset printing; (I) gives a paper with markedly improved offset printing properties, e.g. colour setting, water dissipation, surface strength (esp. wet absorption resistance) and print gloss, together with good brightness and opacity, etc
Patent DE-4142508-A1 (DE)
Title: Offset printing varnishing plate - comprises hard and non-distorting carrier plate with soft layer covered by photosensitive material
Inventor: OSENEGG CARLFRIED
IPC: B41N1/14
Filed: 1991-12-21
Abstract: Plate has a relatively hard and non-distorting carrier layer (1) and a soft layer (3) to transfer the varnish during printing. They are bonded together, with a covering layer (4) over the free surface of the transfer layer (3) of a light-sensitive material. Pref., the two layers (1,3) are bonded together by lamination on an adhesive layer (2), using a thermal-setting adhesive or a bonding adhesive. The carrier layer (1) is of a polymer material, such as polyester or metal foil, and the varnish transfer layer (3) is a polymer material which can be cut, such as polyurethane. The light sensitive material is of positive or negative diazo dyestuffs. The carrier layer (1) has a thickness of 100-700 microns and the transfer layer (3) has a thickness of 100-1100 microns. ADVANTAGE - The plate structure allows spot varnishing to be applied to paper or cardboard in an offset printing machine in a simple operation.