baber/WOPTO huggingface dataset:
Patent DE-4012643-A1 (DE)
Title: Efficient element for water heaters - is polyester of polyimide film, silk screen printed with conductor pattern, laid up with copper contact plus plain film, and hot pressed
Inventor: SCHAEFER STEFAN
IPC: F24H1/10
Filed: 1990-04-20
Abstract: A system for water heaters and continuous flow heaters in particular has heater elements through which the liquid flows; the element uses flat sheets laid up together with the conductor between them; this conductor is applied to one film with silk screen printed Ag or Cu conducting adhesive, and the films concerned are bonded together free from any blisters, using (preferably) hot-curing adhesive or epoxy resin. Pref films are made of polyester or polyimide. The figure shows the cross-section of a stack of layers, in which two thermally resistant films (11) have one film silk-screen printed with the Ag or Cu conducting paste to form the heater element (14). Whilst this layer is still damp the copper contact plate (15) is laid on the appropriate part of the element (14) and pressed together with it. The assembly is then heated as required, the second film (11), film (12) and, where appropriate, adhesive-coated copper foils (13) added and the complete layup is hot pressed free from voids. ADVANTAGE - The system provides a high heating area and hence rapid heating effect. The heating element is fully insulated electrically.
Patent DE-4016796-A1 (DE)
Title: Three=dimensional coordinates measurer for pair of stereo images - has stereo observation optics for images on carriers slidable in parallel by rail
Inventor: STAROSCZIK HERBERT
IPC: H04N13/239
Filed: 1990-05-25
Abstract: The two image carriers (1,2) are coupled by a rail (3) such that they can only slide in one direction in parallel.  The rail is fixed to one carrier while the other (2) can be moved along the rail by guides (4,5).  Both can be moved together onn the support (6). Each carrier has a coordinate measurer (7,8) as well as a stereoscopic observation unit (9,10). The measures ascertain the positions in a fixed table coordinate system.  A computer is coupled to calculate the image and land coordinates from thse table coordinates. USE/ADVANTAGE - Photographic images, e.g. aerial pictures. Simplified photogrammetric evaluation.
Patent DE-4017473-A1 (DE)
Title: Gas-borne particle measuring system - esp. for vehicle exhaust gas emission tests
Inventor: DECKER HANS-JOSEF
IPC: G01N1/38
Filed: 1990-05-14
Abstract: An exhaust gas particle measuring system, esp. for vehicle exhaust gas tests, mixes the exhaust gases with air in a dilution tunnel from which a representative sample stream is withdrawn through a sampling tube by a gas pump and then supplied to a particle filter. The sampling tube has a mass flow meter (1) which affects the gas pump (2), the pump and the flowmeter pref. being connected together via a computing unit (3) which provides a constant gas throughput even when the flow resistance of the particle filter (4) increases. ADVANTAGE - The system is simpler and is much more accurate than conventional systems.
Patent DE-4018903-A1 (DE)
Title: Vehicle windscreen wiper operating appts. - contains sensor for influencing intervals according to screen fouling, moisture or rain
Inventor: MANGLER JUERGEN
IPC: B60S1/08
Filed: 1990-06-13
Abstract: The arrangement contains a sensor for controlling the wipers according to the degree of fouling and/or the moisture or the rain on the screen. A signal processing arrangement influences the  interval (I) between successive wipe processes (W) according to the number of signals (S) generated by the sensor. ADVANTAGE - Improves interval mode of operation of windscreen wipers for motor vehicle.  It eliminates large differences between successive intervals.
Patent DE-4024271-A1 (DE)
Title: Assembly for removal or redn. of ozone content in gas - by passing gas through vessel in which energy is introduced and heating
Inventor: WELZ XAVER U DIPL ING
IPC: B01D53/00
Filed: 1990-07-31
Abstract: Ozone is produced by a variety of processes commonly found in everyday life such as photocopiers and poses a potential threat to human health. The novelty is that the ozone or gas containing ozone is passed through a vessel into which energy is introduced and heated to at least 50 deg.C for at least 0.05 seconds. USE/ADVANTAGE - The ozone is broken down using simple equipment requiring no additives other than energy, and producing no waste products.
Patent DE-4024552-A1 (DE)
Inventor: ROSSMAIER HENRY DR
IPC: C11D3/33
Filed: 1990-08-02
Abstract: 3-hydroxy-2,2'-iminoaspartic diacid and its soluble salts are made by the reaction of aspartic acid or its salts with epoxysuccinic acid or its salts. Such aspartic acid derivatives are used as complexing agents in substances for cleaning and/or disinfecting solid surfaces or textiles.
Patent DE-4028200-A1 (DE)
Title: High silica content product mfr. -  by moulding mixt. of quartz granules and slip
Inventor: LINDENFELSER BERND
IPC: C03B19/06
Filed: 1990-09-03
Abstract: High SiO2 content prods. are made by (1) preparing a mix of amorphous SiO2 such as quartz (glass) granules of various particle size fractions in the range above 63 microns to 3 mm; (ii) homogeneously mixing with 42-56 wt% of a ground slurry of density 1.72-1.85 g/cu.cm; (iii) pouring the homogenised plastic mass into a pretreated gypsum mould while vibrating for partial moisture removal and holding for several hrs; and (iv) after removing the pretreated gypsum mould, air drying and sintering. USE/ADVANTAGE - The process is used to mfr. high dimensional stability, complex shape prods. with more than 98% SiO2 content, e.g. protective pouring tubes, immersion pouring nozzles, metering vessels, crucibles, feeder heads, etc., which have properties typical of quartz (glass) e.g. high thermal cycling resistance to sudden temp. fluctuations between 1100 deg.C and room temp., long term heat resistance at up to 1400 deg.C, high electrical resistance and chemical resistance to acids.
Patent DE-4030541-A1 (DE)
Title: Burner for plasma powder coating device - has central electrode enclosed by plasma jet and carrier gas jet
Inventor: WOLLNER MICHAEL DR ING
IPC: B05B7/22
Filed: 1990-09-27
Abstract: The burner has a negative pole tungsten electrode (5) and a positive pole constriction nozzle (33) concentric to it, together defining an annular jet channel (37) for the plasma gases between them. The constriction nozzle (33) is enclosed by a carrier gas jet (59), the carrier gas jet channel (61) being defined between the jets (33,59). The carrier gas jet channel (61) has a central part (63) with a reduced flow cross-section and a mouthpiece (65) with an enlarged flow cross-section, the coating powder being fed to the plasma column at an angle of 45 deg. Both jets incorporate annular cooling spaces (45,71) supplied with coolant. USE - Powder coating of metal workpieces.
Patent DE-4031156-A1 (DE)
Title: Bucket wheel valve for dispensing loose material -  has vertical shaft, with fixed radial blades, rotor, and annular casing
IPC: B65G53/46
Filed: 1990-10-03
Abstract: The bucket wheel valve is used for dispensing and measuring out loose material. It has a vertical shaft to which are fixed radial blades (14,15) which form a rotor (12) rotating in a cylindrical housing (1). The radially outer edges of the blades (14,15) are joined to an annular casing (16). The annular gap (31) between the casing (16) and the housing (1) is sealed by seals (28,29) which are hedl between the housing (1) and lid (2,32). USE/ADVANTAGE - The bucket wheel valve for handling loose material, has a reduced air leakage, and works with greater efficiency.
Patent DE-4032399-A1 (DE)
Title: Tanker vehicle having detachable tank - uses lifting cylinders to raise tank above vehicle chassis
Inventor: BOYE JAN DR ING
IPC: B60P1/64
Filed: 1990-10-12
Abstract: The tanker vehicle has a detachable tank (5). This can be removed from and secured to the chassis (4) and may be placed on supports when separated from the vehicle. The chassis together with the auxilliary frame (7) and the tank can be raised by engine driven hydraulic or pneumatic cylinders in relation to the axles (10) to reach the dotted line position, and the detached unit is then supported by rigid stays (13). USE/ADVANTAGE - Simple method of removing a tank from a tanker vehicle without the use of an overhead crane.
Patent DE-4033521-A1 (DE)
Inventor: KNOP REINHARD
IPC: B05C1/08
Filed: 1990-10-22
Abstract: Apparatuses for coating both sides of a web (4) of material, in particular of a web of paper or cardboard, are known which have two pressing rollers (1, 2) arranged one next to the other, between which rollers a pressing gap (3) is formed through which the web (4) is guided. An application and metering system (6, 7) is arranged on each pressing roller (1, 2) outside the area of the pressing gap (3) and applies a metered film of coating material to each pressing roller (1, 2) which is subsequently transferred onto the web (4) in the pressing gap (3). According to the invention, a measuring device (8, 9) for continuously determining the amount of coating material applied to the rollers (1, 2) is arranged on each pressing roller (1, 2) in the direction of rotation behind the application and metering system (6, 7) and in front of the pressing gap (3). <IMAGE>
Patent DE-4036317-A1 (DE)
Title: Colour print cassette ribbon - has feed roller formed with moulded elastomer onto cylindrical core
Inventor: RAFFENBERG WOLFGANG
IPC: B41J33/26
Filed: 1990-11-12
Abstract: The feed system is in the form of a driven roller that presses the tape against a contact roller. The contact roller has a cylindrical core (11) of a polyamide material with low friction characteristics. The ends of the core are reduced in diameter to locate in the cassette plates. Formed on the core is a roller form with 4 sections (20) of a thermoplastic elastomer. The inner surface has ribs (27) to improve the mechanical bond. ADVANTAGE - Improved roller form.
Patent DE-4036557-A1 (DE)
Title: Prodn. of abrasive articles - by mixing wetted abrasive particles with thermosetting resin and hot moulding, but using only binder which cures without splitting off gases
Inventor: ELBEL KARL DIPL CHEM DR
IPC: C08J5/14
Filed: 1990-11-16
Abstract: Abrasives are produced by mixing abrasive particles and binder, moulding and setting hard the binder; the process uses a fusible resin as binder which cures at 150 - 250 deg.C without splitting off gases. The binder used is a powered thermosetting resin e.g. expoxide, polyester, polyurethane or cross-linked acrylics etc. They are applied in a conventional manner. E.g. the abrasive particles are first added to a mixer and then wetted with a liq. or dispersion of an expoxide resin before the main binder resin is added. The mix is placed in a mould and held there at 100 deg.C for a time depending upon the (e.g.) material thickness, before moulding at full temp. Various abrasive particles can be used, with their particle size from 8 to 1,200 to FEPA. The quantity of the particles is e.g. 30 - 70% vol. of the final prod. Lubricants can be mixed in the binder e.g. polyethylene, polypropylene, polyamide, sodium stearate etc. The process is more environmentally favourable than when using conventional phenolic resins. ADVANTAGE - The method is universally applicable. It produces efficient abrasives. It is hygienically harmless. (Dwg.0/0)
Patent DE-4036837-A1 (DE)
Inventor: KOLB ALFRED DIPL ING
IPC: A61C13/00
Filed: 1990-11-19
Abstract: In order to produce dental inlays made of dental ceramic or similar material, the invention calls for a moulded impression (1) to be made which serves as the original for the production of the inlay by grinding. For this purpose, the impression (1) and a blank (2) of the inlay are mounted on a common mouting (3). A copy-grinding machine scans the impression (1) with a probe (7) in a first setting and grinds part of the surface of the inlay on the blank (2). Subsequently, the impression (1) and the blank (2) are transferred to a second mounting (9), maintaining the same relative positions. The blank (2) is then finished by copy-grinding.
Patent DE-4038705-A1 (DE)
Title: Laminated sterilisable fabric for surgical applications - has water vapour permeable polyurethane film core thermally bonded to fabric outer layers
Inventor: BLUECHER HASSO VON
IPC: A61B46/00
Filed: 1990-12-05
Abstract: Laminated material for medical applications comprising a layer of water vapour permeable polyurethane film made by applying a mixt. of a polymeric masked isocyanate and a polyvalent amine to a pref. carrier and crosslinking, covered on both sides by a layer of textile material. Pref. the textile material at least on one side of the laminate is of a knitted polyester fabric roughened on one side. Laminating of the textile layers to the polyurethane layer is pref. carried out thermally without using adhesives. Pref. the total wt. of the material is 150-400 g/m2, esp. 200-250 g/m2 and the water vapour permeability is more than 2000 g/24 h.m2 (Lyssy method). USE/ADVANTAGE - The layered material is water-tight and particle-tight, has good water vapour permeability and an absorbent surface. The prod. is resistant to boil washing and sterilisation and is esp. useful for making operating theatre drapes, covers and clothing
Patent DE-4110930-A1 (DE)
Title: Prodn. of thin layers of nitride or oxide - using helium in plasma gas contg. argon, oxygen and nitrogen, in reactive or magnetron cathodic sputtering
Inventor: SARACOGLU IBRAHIM ADNAN PROF D
IPC: C23C14/00
Filed: 1991-04-04
Abstract: Prodn. of thin nitride or oxide layer comprises reactive cathode sputtering or reactive magnetron cathode sputtering on to a Ti, Si, Al, Zr, Hf, Mo, Ta and/or substrate metal. The deposition is carried out in vacuum. The process gas comprises O2 or N2 and Ar with traces of He such that the ratio of Ar:He is 40-500:1. Opt. Ne and/or Kr and/or Xe may be present, and Ne+Kr+Xe:Ar = 1:4-25. USE/ADVANTAGE - Increases the efficiency of deposition without reducing the quality of the deposited layer. There is no increase in energy requirement and the process is cost effective.
Patent DE-4112043-A1 (DE)
Inventor: MAURER INGO
IPC: G04C17/02
Filed: 1991-04-12
Abstract: A clock (1) with analog display consisting of a narrow light beam that executes a time-dependent revolution and functions as an indicator has a light source (3; 21) for generating the narrow light beam and a rotary device (7, 8, 11, 17, 18, 22) driven by a clock mechanism (10) for generating the time-dependent revolution of the light beam. The invention avoids the restrictions on the design of known clocks, which comprise a reference surface that serves as a dial. To this end, the rotary device (7, 8, 11, 17, 18, 22) rotates about a substantially vertical axis (4), the rotary device (7, 8, 11, 17, 18, 22) is designed so that the light beam rotates about the substantially vertical axis (4) in a substantially horizontal plane, and the clock (1) has no reference surface that serves as a dial. The light beam thus casts a light mark with a time-dependent, substantially horizontal position on surfaces (19) of the room in which the clock (1) is installed.
Patent DE-4119161-A1 (DE)
Inventor: HINGER KLAUS-JUERGEN PROF DR I
IPC: E03F3/06
Filed: 1991-06-11
Abstract: The device for repairing sewer pipes comprises an extruder (1) which is drivable by means of travelling mechanisms (14) and is provided with a radial pipe nozzle (11), which extrudes a thermoplastic tube (58) onto the inner surface (7) of the sewer pipe (8) to be repaired. The thermoplastic tube (58) is pressed by compressed air against the inner surface (7) and cooled to form a lining pipe (57). 
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Patent DE-4123486-A1 (DE)
Title: Cover for opening in domestic hot water tank - has clamping levers to ensure  pressure tight joint between cover and tank
Inventor: PRAETORIUS RICHARD DIPL ING
IPC: F24H9/18
Filed: 1991-07-16
Abstract: The domestic hot water tank (1) has an opening through which the heater (15) is inserted. The opening has a neck (2) which has an out-turned edge (3). The opening is sealed by a cover plate (12) which has a flange (9). The neck (2) is fitted with an external sleeve (4) which has  equally spaced lugs (11) which project axially. Each lug (11) has a square hole which engages the end of a clamping lever (17). The other end of the clamping lever (17) is bolted to the cover plate (12). USE/ADVANTAGE - Cover for a hot-water tank with a seal which does not impose a load on the tank body.
Patent DE-4127902-A1 (DE)
Title: Root crop cultivating machine - has two other wheels on a pivot to swing from one behind other to one above other
Inventor: WOLFRAM JOERG-FRIEDHELM
IPC: B60G3/18
Filed: 1991-08-22
Abstract: The root crop machine consists of a frame (2) with a fixed wheel (1) with two other wheels (3, 4) on a wing (5). A pivot (6) is staggered from the axle (7) of the fixed wheel (1) and can be adjusted as to height by a hydraulic cylinder and linkage (8). There are stops to limit the amount of adjustment and can selectively set the wheels one behind the other or one above the other.There can be pivots to limit the tilting of the vehicle chassis. USE/ADVANTAGE - The distance between wheels need not be adjusted for road or rail transportation or for working.
Patent DE-4130817-A1 (DE)
Title: Tractor-drawn liquid manure spreader - has control valves between distribution pipes and discharge nozzles with microprocessor-controlled spraying pattern
IPC: A01C23/00
Filed: 1991-09-17
Abstract: The tractor-drawn manure spreader has a manure drum supplying a pump and a distribution pipe network giving a uniform supply of manure over the working width. Between the distribution pipes and discharge nozzles are control valves operated by a microprocessor. This has an EPROM to store the control program and data for the valves, a keyboard for selecting different spraying modes, a metering device with LED's for showing the particulars of the chosen spraying mode and a driver output stage for the valve action according to the mode chosen. The microprocessor is a one-chip computer with a RAM working store. ADVANTAGE - Simple construction of control unit; easy control of manure spreading pattern.
Patent DE-4140120-A1 (DE)
IPC: B60K28/16
Filed: 1991-12-05
Abstract: Proposed is equipment for vehicles fitted with anti-slip control by braking action, the equipment including a hydraulic pump (21, 22) but no hydraulic accumulator. The equipment comprises a sensor (SD) and/or a circuit for the determination of driving situations in which there is a tendency for the drive wheels to spin. For instance, the angular speed of the engine throttle-valve flap (28) is measured and analysed. Auxiliary-pressure generation is started up as soon as the signal representing the spin tendency exceeds a certain limit.
Patent DE-4142061-A1 (DE)
Title: Aligning unit for cage with roller bearings - has guide grooves, and cage section with two deflectors around which runs continuous wire
Inventor: MOTTATE TATSUO
IPC: F16C29/04
Filed: 1991-12-19
Abstract: The aligner-unit has two elongated guides (1, 2) of equal length, each with a guide-groove (1a, 2a). Roller-bearings (4) roll between the guide-grooves (1a, 2a). A cage (3) is movably positioned in the cavity between the guides and keeps the roller bearings (4) apart and contains an elongated cage-section (3). The opposite ends of the cage-section (3) each has a preferably rotary deflector-component (9, 10). The total length of the cage (3, 9, 10) is shorter than each guide (1, 2). A continuous, for example, wire piece (13) runs round the two deflector-components (9, 10). Two points on the continuous piece (13) are joined by two connections (14, 15) to the two guides (1, 2). ADVANTAGE - The aligning unit prevents the cage from becoming displaced; possesses a low, constant displacement resistance and is durable.
Patent DE-4200079-A1 (DE)
Title: Empty bobbin feed for automatic doffer - comprises bobbin conveyor system, bobbin head control, bobbin rotator, buffer and correction system etc., gives correct bobbin positioning and centring
Inventor: LIU CHUN-HSIEN
IPC: D01H9/08
Filed: 1992-01-03
Abstract: Appts. comprises a bobbin conveyor system, a bobbin head control (1311,1312), a bobbin rotater, a bobbin buffer (110) and a bobbin correction station. A bobbin feed has a crank, a connecting rod (212), a push rod (213), a loading rod and paired sliding rails. The bobbin insertion mechanism has a cogwheel (311), a connected rod (312) and a positioning rod (313). The movement of an empty bobbin (101) into a holding zone (100), and the bobbin head control, operate through sensors which register the direction of the larger or smaller bobbin head and determine wehther the bobbin is to be turned. The empty bobbin is held in the buffer until the buffer is filled. The bobbin feed system moves the bobbin to the catch position during the time the feed moves to the catch point. At the end of a bobbin insertion cycle, the bobbin feed and insertion systems remain in a holding position. The bobbin transport system pref. has two sets of symmetrical connecting rods, a common setting rod (124) and a pair of electro-magnetic turn switches, to drive a pair of rotating rods to pass a catch axis (1231,1232) to an empty bobbin, and the setting rod (124) to bring the empty bobbin (101) where it can drop into the buffer (110). The bobbin head control pref. has an electro-magnetic turn switch, a pair of springs and a pair of head control plates (1311,1312). The springs pref. determine the limits of control plate (1311,1312) movement so that the smaller bobbin head is between the plates and the separating plates (102,103) pass through. The electro-magnetic turn switch pref. rotates the control plates (1311,1312) for the larger bobbin head to pass through. USE/ADVANTAGE - The assembly is for an automatic doffer with automatic spinners. The systems ensure that an empty bobbin is correctly positioned and centred to fit on a spindle in a smooth and trouble-free operation.
Patent DE-4200614-A1 (DE)
Title: Reclosable closure for carbonated drinks cans - has tab on underside swivelling into opening position against spring force
Inventor: ERCAN OELKUE
IPC: B65D47/08
Filed: 1992-01-13
Abstract: The tab (4) mounted below the lid (2) is dimensioned so that,in the closed state,it protrudes over the edge (3`) of the discharge opening (3). The tab can be pressed sealingly against the underside of the lid by a pretensioned spring (9) and after applying an opening force against the contact pressure force of the spring, the tab is brought out of contact with the lid and swivelled into an opening position. A piston (5) attached to the tab passes through the lid into a second opening (6) and is enclosed concentrically by the spring. ADVANTAGE - It is possible to re-close the can when required.
Patent DE-4201891-A1 (DE)
Title: Bicycle carrier for motor vehicle with trailer coupling - is formed from square-section and tubular struts for conveyance of load, bicycle or invalid carriage.
IPC: B60R9/10
Filed: 1992-01-24
Abstract: The frame of the carrier is assembled from four longitudinal struts, one transverse strut, one carrier support strut and a pivotable ball-joint coupling which may be integral with the last-mentioned. A stable frame is thus formed for attachment to the trailer coupling with a standard plug connector for electrical wiring. It can be shifted axially by 90 deg. A double three-point suspension is achieved with a crown linkage for immovability. ADVANTAGE - Assembled carrier can be coupled to vehicle by one person unaided, and does not degrade its manoeuvrability and fuel economy as with a roof rack.