baber/WOPTO huggingface dataset:
Patent DE-4008718-A1 (DE)
Title: Forming total dental prosthesis
Inventor: BECKER WOLFGANG
IPC: A61C13/00
Filed: 1990-03-19
Abstract: The method forms a dental prosthesis, partic. a total one, with a top- or bottom-jaw base, using a milling machine. The base(23) is milled out from a plastic material block to match the contours of the mouth cavity in contact with it, and forms the initial product for further operations to form the prosthesis.  The contour can be determined by taking an impression. The contour and surface scanning can be helped by using data stored in a computer. The intermediate space between the base and teeth can be completed by matching to preprogrammed radii of curvature stored in the computer.
Patent DE-4010260-A1 (DE)
Title: Single-screw extruder - using recirculating ball system to provide positive displacement extrusion
Inventor: PESCHEL ROLAND
IPC: B29C48/67
Filed: 1990-03-30
Abstract: The proposed extruder is in the form of a ball-and-screw mechanism with recirculating balls or rollers. A groove is provided in the inner surface of the extruder cylinder along which the rollers move from an inlet to an outlet point, and the shape of the extruder screw is adapted to the shape of the rollers. Transition curves are provided in the extruder screw at the roller inlet and outlet points. The roller path may extend over all or a part of the extruder length, and more than one roller path may be arranged around the circumference of the extruder cylinder. The proposed system may be applied to conical as well as to cylindrical extruders. Various shapes of rollers may be used. USE/ADVANTAGE - This invention is used in the extrusion of foodstuffs. The customary design of single-screw extruder relies on friction between the foodstuff and the cylinder walls to provide the extrusion force. This invention proposes a single screw extruder which is simple and economical to manufacture, and has the advantages of a double-screw extruder in that it provides positive-displacement extrusion and has a self-cleaning screw.
Patent DE-4013460-A1 (DE)
Title: Accurate pref. computer-controlled flow control - has pipe carrying one material variable in position w.r.t. hopper-shaped rotary part carrying another
Inventor: ZIEGLER GUSTAV PROF DIPL ING
IPC: G05D11/13
Filed: 1990-04-27
Abstract: An arrangement for flow control of two materials flowing together feeds one material through the annular gap between the pipe (4) carrying the other and a coaxial, hopper-shaped rotary part (5). The required control is achieved by moving the hopper axially w.r.t. the pipe, pref. under computer control. The end of the pipe protruding into the hopper is chamfered to form a dihedral or beaded to give advantageous flow characteristics. USE/ADVANTAGE - E.g. for use in measuring flow properties of various fittings. More economical to mfr. and operate.
Patent DE-4015445-A1 (DE)
Title: Clamping system for workpiece pallets - has rack engaging with pinion segment and pinion nut to rotate and pull down clamping piece
Inventor: DIETZ RUDOLF
IPC: B23Q1/00
Filed: 1990-05-14
Abstract: To clamp the pallet (4) it is lowered over the clamping piece (2), the clamping piece is rotated to bring it into engagement with the pallet clamping surfaces (3), and the clamping piece is then pulled down to complete the clamping operation. The clamping piece is secured to the vertical spindle (1) which is mounted in the bearings (12, 13) and is supported on the pin and spring (19, 20) at its bottom end. A 'clamping' pinion (7) supported against bearing (10) runs on a screwed section (5) of the spindle, and a 'rotational' pinion segment (14) is keyed to the spindle immediately below the clamping pinion. A hydraulically driven rack (9) engages with both pinions. Movement of the rack first causes the rotational pinion segment and spindle to rotate and lock into the clamping position; continued movement pulls the spindle downwards by rotation of the screwed clamping pinion and clamps the pallet. The screw is non-reversing under load. USE/ADVANTAGE - Compact design. CLamping is maintained if power fails.
Patent DE-4019430-A1 (DE)
Title: Articulated joints for dolls - incorporates pins and sockets and securing screws for extra durability
Inventor: TEULINGS HARRY
IPC: A63H3/46
Filed: 1990-06-19
Abstract: The articulated connection for a doll comprises pins on the head, arms or legs rotatably engaging in  corresponding sockets in the hollow body. A connecting bolt in the form of a screw (16) is screwed by its threaded shaft into a threaded sleeve (13) provided in the articulated pin (7). Its screw head (16a) set in the doll body (1) or a nut screwed onto the threaded shaft is supported under tension on a semi-spherical resilient dish (15) which opens towards the articualted pin whereby the free edge (15a) of the dish is supported on the inner wall (1a) of the body in the circumferential area of the socket (10). USE/ADVANTAGE - The joints for the limbs of a doll are reliable and give a long service life.
Patent DE-4025166-A1 (DE)
Title: Making lipping round rim of windscreen - by producing clean join between ends by curing polyurethane extrusion in position, cutting of piece and gluing separate piece in its place
Inventor: NOEBEL UDO
IPC: B60J10/70
Filed: 1990-08-08
Abstract: A polyurethane bead is produced with a profiled section along the periphery of a windscreen.a First viscous polyurethane extrusion is produced round the windscreen and its two ends are matched together; the material is then allowed to harden and a visible part is cut off the join and of a partic width so as to leave a cut; an identical piece of the width concerned is taken off a prefabricated and cured polyurethane bead and is glued into the cut which has been left.
Patent DE-4025776-A1 (DE)
Title: New curable prepolymers prepn. - from diol-or di:amino-terminated poly:tetra-hydro-furan with di:isocyanate and hydroxy-or amino-acrylate or with isocyanato-acrylate
Inventor: ELLRICH KLAUS DR
IPC: C09J175/16
Filed: 1990-08-14
Abstract: Prepolymers (I) are obtd. by reacting (A) polyether diol or polyether diamine of formula H-X1-PE-X1-H (where X1 = O, NH or NR, where R = 1-4C alkyl; PE = polyether residue consisting at least partly of polytetrahydrofuran units) with (B) di-isocyanate of formula OCN-A1-NCO (where A1 = opt. substd. 2-30C hydrocarbon gp.) and (C) monomeric hydroxy- and/or amino-functional deriv. of acrylic and/or methacrylic acid, of formula H-X2-R1-O-C(O)-C(R2)=CH2 (where X2 = O, NH or NR; R1 = 2-3C alkylene; R2 = H or Me) or by reacting (A) with (D) monomeric, isocyanate-functional deriv. of acrylic and/or methacrylic acid, of formula OCN-R1-O-C(O)-C(R2)=CH2. USE/ADVANTAGE - (II) is used as adhesive, sealant or potting material partic. bonding articles or surfaces of polycarbonate with articles or surfaces of polycarbonate or other material. (II) harden quickly, are economical in materials, have low shrinkage, and give durable bonds with polycarbonates.
Patent DE-4033789-A1 (DE)
Title: Level regulating equipment for sediment liq. - esp. in flue gas scrubber unit
IPC: B01D47/06
Filed: 1990-10-24
Abstract: In equipment for sediment liq. level regulation in a flue gas cleaning unit (esp. a scrubber) with a valve-controlled sediment liq. discharge line located in the bottom part of the vessel, the vessel (1) has an overflow (7,8), operating when the desired level (4) is exceeded, and that the discharge line (5) has an effective cross-section of size such that a small portion (pref. 5-15, esp. 10%) of the sediment liq. being produced drains practically constantly through the overflow line. ADVANTAGE - The equipment has a simplified construction and has satisfactory operational reliability.
Patent DE-4041894-A1 (DE)
Title: Ophthalmic surgical instrument with cold light UV laser - has laser pulse homogeniser with two cylindrical lenses with optical axes intersecting at 90 deg.
Inventor: DARDENNE MICHAEL ULRICH PROF D
IPC: A61F9/01
Filed: 1990-12-27
Abstract: The laser pulses, after processing by a two-lens homogeniser (2) are converted from a rectangular into a square cross section of 20 x 20 mm in orthogonal direction to the centre point axis. A widening optical system (3) acts on the square laser pulses to increase the cross section, while reducing the pulse density. The cylindrical optical part (4) is of smaller dia. than that of the widening optical system. The cylindrical part has quartz glass lenses with large outer dia., consisting of high purity synthetic quartz glass, transparent to UV, with uniformly doped solid absorbents, e.g. metals or metal oxides. The photoabletion depth and radial absorption gradient are adjustable curvature radii and doping variations. USE/ADVANTAGE - For treating myopia, hyperopia, astigmatism etc., with easy mfr., improved reliability and better handling.
Patent DE-4108208-A1 (DE)
Title: Built-in electrical installation device for furniture or skirting - has tension restraint for electrical leads attached to flat mounting flange
Inventor: BRAEUNICKE KARL-HEINZ
IPC: H02G3/18
Filed: 1991-03-14
Abstract: The electrical installation device has a flat fixing flange (1), a rear contact protection cap and a tension restraint (3,4) for the electrtical leads. The tension restraint (3,4) is attached to the fixing flange (1) and the protection cap has a U shaped edge opening. The tension restraint (3,4) uses a restraint clip (3) which is attached to the mounting flange (1) via a film hinge (4) and which cooperates with a restraint bridge (6). USE/ADVANTAGE - For switches, buttons, sockets etc. Min. overall sizes.
Patent DE-4109600-A1 (DE)
Title: Controlling closing sequence of pair of doors - using linkage system connected to pistons to make first door always close before second
Inventor: TILLMANN HORST
IPC: E05F5/12
Filed: 1991-03-25
Abstract: The device controls the closing sequence of a pair of doors, one designated as the opening door and the other the standing door. Both doors are operated by spring loaded door closers (18) located at the feet of the doors. An interconnection between the door closers of a piston and lever arrangement, holds the opening door open until the standing door is closed and a released valve lets the open door close. USE/ADVANTAGE - Closing sequence of doors ensured through valve arrangement.
Patent DE-4111392-A1 (DE)
Inventor: KUBITZA WERNER DIPL ING
IPC: C08G18/10
Filed: 1991-04-09
Abstract: An aqueous binder combination essentially comprising A) an aqueous solution or dispersion of a polyester resin containing urethane, carboxylate and hydroxyl groups, and B) a polyisocyanate component having a viscosity at 23 DEG C of from 50 to 10,000 mPa.s, a process for the preparation of coating agents based on a binder combination of this type by emulsifying a polyisocyanate component of said type in an aqueous solution or dispersion of a polyester resin of this type, to which any assistants and additives also used have been incorporated in advance, and the use of binder combinations of said type as binders for paints, coatings or sealants.
Patent DE-4112308-A1 (DE)
Title: Fire fighting method - uses steam produced by mobile heater
Inventor: KUNEL HEINRICH
IPC: A62C99/00
Filed: 1991-04-15
Abstract: This fire fighting method uses, entirely or partly, steam as the extinguishing agent. The steam can be very hot. Plant claimed for the method includes a heater to produce the steam, and may be mobile. The seat of the fire, together with the flames, can be enveloped in the steam, which removes, wholly or partly, the oxygen. USE/ADVANTAGE - The method, with plant of suitable size, can be used, on its own or together with other plant, for extinguishing most types of fire, including oil fires and fires in buildings. Only simple consumables - water and fuel - are needed.
Patent DE-4113632-A1 (DE)
Title: Laser beam device for locating feed tubes, etc. - with feed cables and tubes located in area between beam guide tube and inner wall of guide column
Inventor: TOELLER MANFRED
IPC: B23K26/70
Filed: 1991-04-26
Abstract: Laser beam device in which a working head (12) is attached to a column (10) through which the laser beam is directed in a channel (14) surrounded by a protection tube (16). A ring area (20) between the tube (16) and inner wall (18) of column (10) is used to locate the feed tubes and cables (24) which are connected to the head. The ring area (20) is sepd. from the protection tube (16) by a heat dispersion tube (26) with a thermal protection cover (28) located between the tubes (26) and (16). A coupling ring (30) is inserted between the head (12) and the ring area (16) with coupling elements (32,34) for fixing the parts together and connections for the ends of the cables and tubes. USE/ADVANTAGE - In precision laser cutting. Improved design for locating feed tubes, cables, etc.
Patent DE-4113813-A1 (DE)
Title: Cleaning waste water from printing operations - in which desorption air is purified in activated carbon@ filter before venting, and desorbed water is further filtered
IPC: C02F1/20
Filed: 1991-04-27
Abstract: In cleaning waste water from printing works, the water is settled (1), filtered (3, 4) and is then stripped (5), using air (17) as the desorption medium. The stripping air is cooled and then cleaned in an activated carbon filter. A water softener (29) is provided in the water inlet to the printing plant (30, 31) and a cooling device (27) and activated C filter (21) are provided in the air outlet (19, 20) from the desorption tank (5). The water softener is in the form of a calcium ion exchanger unit. A filter (6) downstream of the desorption tank consists of a vessel inside which is a removable insert which has a permeable floor and which contains a filtration or reaction material. The clean water outlet from this filter is at a short distance above its floor, so that a sump is formed in the lower part of the filter from which a drain pipe leads to a sludge receiving tank. USE/ADVANTAGE - Used in purifying waste water from printing operations.
Patent DE-4115700-A1 (DE)
Title: Reflective delay line as surface wave structure - has spacing of electrode finger(s) in surface wave reflectors differently selected w.r.t. other electrode fingers
Inventor: FLEISCHMANN BERND
IPC: H03H9/42
Filed: 1991-05-14
Abstract: The delay line has an input/output interdigital converter (10) and several surface wave reflectors (11-1 ...), which are fitted at different spacings for realising different transit times of the surface waves between the reflectors and the converter. The distance of at least one electrode finger (12 - 4, N-n) in the surface wave reflectors from an adjacent electrode finger (12 - 3, N-4) is selected in a variable manner w.r.t. the distance of the remaining electrode fingers. Pref. at least one electrode finger has a spacing (B,C), different from an acoustic half-wavelength of the adjacent electrode finger. USE/ADVANTAGE - Converting supplied HF signal into recognition bit code, with improved constant output amplitude of delay line.
Patent DE-4116116-A1 (DE)
Title: Fluorescent light measuring instrument for joint testing - has optical passages generating quasi monochromatic excitation light and contg. collector lenses and detectors, for compact system
Inventor: SOMMER KLAUS DIPL PHYS DR
IPC: G01N21/64
Filed: 1991-05-17
Abstract: Instrument comprises an optical excitation passage and two fluorescence ones. The excitation passage has a light source and lenses generating a quasi-monochromatic excitation light. The fluorescene ones contain collector lenses, and interference filter detectors, measuring the intensity of fluorescent light for each wavelength. ADVANTAGE  - Simple to operate.
Patent DE-4118541-A1 (DE)
Title: Interface coupling for microwave strip conductors - uses overlapping integrated circuit chip over supporting substrate to interface microwave strip conductor to other circuit elements
Inventor: MENZEL WOLFGANG PROF
IPC: H01L23/66
Filed: 1991-06-06
Abstract: The arrangement comprises a high frequency (HF) millimetre wave integrated circuit chip (1) mounted on a supporting substrate (2). The former has part of a millimetre wave switching structure (3) with an HF connecting conductor (4) separated from an underlying earthed plate (8), while the latter features an earth section (9), connected by through contacts (10) to an earth section (9), connected by through contacts (10) to an earth grounding plate (11), and an HF connecting structure (5a) that forms the other part of the millimetre wave switching structure. The circuit chip is positioned on the substrate so that the chip earthed plate and the substrate earth section connect together and so that the HF coupling structures overlap each other by approximately a quarter wavelength. ADVANTAGE - Cost effective coupling arrangement suitable for different conductor types.
Patent DE-4124066-A1 (DE)
Title: Low-voltage lighting system with rail-mounted lampholders - has conductively coated rail gripped by symmetrical holding elements allowing for adjustment of angle of projection
Inventor: SACHER DOMINIC
IPC: F21V21/34
Filed: 1991-07-19
Abstract: The holder (11) for the lamp (12) is fitted to a rail (10) in the form of a flexible strip secured to a wall or ceiling. The insulating central layer (13) of the strip is flanked by outer layers (14,15) of Al alloy. Two holding elements (16,16') grip the rail (10) on opposite sides and are held together by screws (21,22) in transverse bores above and below the rail. Contact pins in the lamp socket (25,25') are retained by grub screws (28,28'). ADVANTAGE - Safe supply of current is guaranteed to simple and reliable installation of lamp, lampholder and rail.
Patent DE-4129268-A1 (DE)
Title: Plasma display panel with auxiliary discharge - has matrix of cells formed by anodes and cathodes with spacers having light emitting coating
Inventor: KIM DAE-IL
IPC: G09F9/313
Filed: 1991-09-03
Abstract: A plasma display panel is formed with strip type anodes (A) and cathodes (K) formed on the surfaces of front (10) and back (20) plates to create a matrix. The anodes and cathodes are separated by spacers (B1-B3), of which two (B1,B3) are located adajcent to the top plate and the other on the base. Auxiliary anode elements (A') are formed on the underside of one type of spacer (B1). A light emitting material (P) is formed on the sides of the spacers in the cells of the matrix. ADVANTAGE - High contrast. Can be multicoloured.
Patent DE-4132135-A1 (DE)
Title: Storage container for magnetic tape cassettes
Inventor: ACKERET PETER
IPC: G11B23/023
Filed: 1991-09-26
Abstract: The device has, a housing part, a cassette transporter, an ejection spring mechanism, a releasable latch blocking members. The housing part is a parallel elepipedic shape which has an opening. The cassette transporter part is displaceable through the opening relative to the first part. The ejection spring mechanism biasses the parts towards the removal position. The releasable latch retains the parts in the storing position against the bias of the spring mechanism.     The blocking members are engageable into the cassette tape reels and are accessible from the exterior. Cassettes having tape reels which are inaccessible from the exterior have blodcins members which are deactivated to enable storage.
Patent DE-4134639-A1 (DE)
Title: Coke oven, reducing harmful gas from ramming coke plant - has oven walls near door, coated with heat resistant and thermally protective layer pref. ceramic
Inventor: GROSS HELMUT
IPC: C10B29/02
Filed: 1991-10-19
Abstract: The hot oven walls near the oven openings, especially near the door, are provided with a heat-resistant and thermally-protective layer which (claimed in a variant) may be of a ceramic material. USE/ADVANTAGE - Used for ramming coke plant. The oven can be operated, for ramming, at an underpressure and environmentally harmful gas emissions are avoided.
Patent DE-4137197-A1 (DE)
Title: Gas sensor with temp. gradient region useful in portable battery powered detectors - has temp. sensors provided with exothermic reaction catalyst
Inventor: GALL MARTIN
IPC: G01N27/16
Filed: 1991-11-12
Abstract: Sensor structure includes heating element (4) on a substrate (1) to enclose an area (5) in which a temp. gradient is produced during heating element operation. Two or more temp. sensors (6,7), each arranged along an isotherm, are provided on the enclosed area (5) and are provided with a catalyst, at the surface of which a gas reacts with evolution of heat deflected by the temp. sensors (6,7). Heating element (4) and the temp. sensors (6,7) are thermally insulated from the substrate (1). Temp. sensors (6,7) are pref. in the form of thin film resistors having an electrical resistance which varies markedly in the detection temp. range. Sensors (6,7) may be provided with layers of pref. different catalyst materials or may consist of electrically conductive catalyst material. Pref. the heating element (4) is also in the form of a thin film resistor. Substrate (1) pref. consists of Si and is thermally insulated from the heating element (4) and the temp. sensors (6,7) pref. by provision of a cavity (2) and an insulating membrane e.g. of Si3N4. USE/ADVANTAGE - Gas sensor structure is useful in portable, battery powered detectors for detecting e.g. combustible gases and can detect several gases simultaneously and is suitable for use in portable equipment
Patent DE-4137535-A1 (DE)
Title: Combined compressor and electrical generator - is driven by vehicle engine or by own IC engine dependent on energy requirement
Inventor: FICHT REINHOLD
IPC: B60R16/03
Filed: 1991-11-14
Abstract: The combined compressor and electrical generator, is contained in a common housing (7) fitted directly to the i.c. engine (4), with electromagnetic clutches (9,12) between the engine output shaft (8) of this engine and the compressor (3) and between a belt drive (5) rotated by the vehicle engine and the compressor (3), to allow its operation from either or both drive sources. Pref. the compressor (3) has a hollow shaft (15) through which the main shaft (10) between the belt drive (5) and the switched coupling (18) is passed. ADVANTAGE - Allows vehicle heating or air-conditioning to be maintained in operation when vehicle is at a standstill.
Patent DE-4141986-A1 (DE)
Title: Car gearbox gearchange linkage latch - has ball retaining element in plastics housing with metal bush moulded into it
Inventor: MALIK REINHART DIPL ING
IPC: F16H63/38
Filed: 1991-12-19
Abstract: A spring-loaded indent formation has a central cylinder (2) that has a ball (22) captive in the end section. The ball is retained on small balls (20) by a shaped metal holder (24). The cylinder is subject to coil spring (5) force and moves on a linear ball bearing race, within a moulded plastics housing (10). The plastics body is reinforced by moulding embedded a cylindrical metal bush (15). The latter has a pattern of apertures filled by the plastics for secure retention. USE/ADVANTAGE - For car gearboxes,with reliable, lightweight design and sufficient strength.