baber/WOPTO huggingface dataset:
Patent DE-3918458-A1 (DE)
Title: Process for preparing alpha-ketobutyric acid
Inventor: IMANARI MAKOTO
IPC: B01J23/42
Filed: 1989-06-06
Abstract: A process is provided for preparing alpha-ketobutyric acid, in which 1,2-butanediol is contacted with molecular oxygen in the presence of a platinum catalyst. This process gives alpha-ketobutyric acid in high yields and at low cost.
Patent DE-3920648-A1 (DE)
Inventor: POPPINGER MANFRED DR
IPC: G08C19/14
Filed: 1989-06-23
Abstract: In many electrical measurement detectors, the measured value to be detected is converted into two frequency-analogue measurement signals from which a differential frequency or a frequency ratio is derived to determine the measurement. In order to eliminate the effect of interferences on the result of measurement and to reduce non-linearity, according to the invention the determination of the measurement is based on the difference between the ratio fa/fb of the frequencies fa and fb of two measurement signals and its reciprocal fb/fa. In a preferred embodiment of the invention a corresponding electrical arrangement for processing measurement signals is integrated with the measurement detector on a semiconductor chip.
Patent DE-3920919-A1 (DE)
Title: Contact lens applicator
Inventor: SCHNEIDER PAUL
IPC: A61B17/30
Filed: 1989-06-27
Abstract: The invention relates to a contact lens applicator which comprises a fluid-operated lens holder, a connection line and a bellows-type pump which is preferably designed as a pear-shaped ball. At the front the lens holder is covered by a thin rubber diaphragm which can selectively be transferred into the concave state (gripping) or the convex state (releasing) by deliberate generation of superatmospheric or reduced pressure with the bellows-type pump. On gripping, the contact lens rests sealingly against the rubber diaphragm at an annular sealing surface; a reduced pressure space which firmly holds the contact lens is produced between the contact lens and the rubber diaphragm. The lens holder has a larger diameter than the contact lens, and this ensures that the contact lens can be securely held and guided in a shock-insensitive and unlosable manner. Various ergonomic and structural optimisations are dealt with. The contact lens applicator according to the invention can be used to pick up contact lenses securely, to guide them and to apply them to the eye, and vice versa. At the same time, the risk of letting the contact lens drop accidentally is virtually ruled out.
Patent DE-3926870-A1 (DE)
Title: Bismuth vanadate or mixed pigment coated with hardly soluble iron cpd. - to minimise photochromic effect, prodn. and use in paint, printing ink or plastics
Inventor: SCHWIDETZKY CHRISTOPH DR
IPC: C09C1/00
Filed: 1989-08-16
Abstract: Bi vanadate pigments or pigments contg. Bi vanadate are coated with hardly soluble inorganic Fe cpds. (I). Pref. (I) are used in amts. of 0.001-2.0, pref. 0.05-0.5 wt.% w.r.t. the pigment. The pigments are produced by sepg. them from a suspension in an aq. Fe salt soln. and drying. The Fe salt is Fe2(SO4)3, Fe(NO3)3 or FeCl3. USE/ADVANTAGE - For pigmenting paints, printing inks and plastics. The (I) coating greatly reduced the photochromic effect. In an example, a suspension of 80 g pigment with the compsn. BiVO4.0.75 Bi2MoO6 and 120 g water was ball milled for 60 min.  at 1200 rpm (A) without additive or with addn. of (B) 11.4 g Fe(NO3)3.9H2O or 6.8 g Fe2(SO4)3 in dissolved form. The suspension was filtered, washed and dried, giving a pigment contg. (A) 0.003, (B) 0.05, (C) 0.02 wt.% Fe. Paint contg. 20 g pigment in 80 g alkyl-melamine resin was sprayed onto sheet metal and half the sheet was exposed to a 1000 W lamp, 50 cm  away, for 1 h. The difference in colour between the exposed and unexposed areas was (A) 2.2, (B) 1.1, (C) 0.7 immediately after exposure and (A) 1.0, (B) 0.2, (C) 0.1, 24 h after exposure.
Patent DE-3929122-A1 (DE)
Inventor: MORGENROTH GERHARD
IPC: E05B55/08
Filed: 1989-09-01
Abstract: The invention relates to a case (10), the mutually movable halves (12, 14) of which can be locked by suitable mechanisms, in which the actuation of the locking mechanisms can be remotely controlled. These locking mechanisms are advantageously electromagnetically actuated snap-locks (40) operable by remote wireless control.
Patent DE-3934261-A1 (DE)
Title: Chain conveyor for workpiece drying - has workpiece supports, each with two holding arms in plane transverse to chain motion sense
Inventor: MUELLER THOMAS
IPC: F26B15/14
Filed: 1989-10-13
Abstract: The conveyor (10) for workpiece (12) drying has a continuous conveyor chain (16) running over sprockets (20, 22) mounted on a frame (18) at both ends. Workpiece holders (25, 27) are conveyed by the conveyor chain (16) along a top preliminary conveyor section (32) from the input point (34) at one end of the chain conveyor to the deflector point at the other end with a workpiece  discharge (36). Each workpiece holder consists of two holding arms in a plane transverse to the direction of movement of the conveyor chain. The arms diverge from the conveyor chain towards their free ends. ADVANTAGE - Low-cost design and reduced surface between work and supports.
Patent DE-3934361-A1 (DE)
Title: Missile loaded with bomblets - with each bomblet having explosive charge to separate it from missile
Inventor: ALTENAU ERNST-WILHELM DIPL ING
IPC: F42B12/62
Filed: 1989-10-14
Abstract: A missile which carries a number of bomblets has the bomblets (14) stored in tubes (26) packed inside the missile. Each tube (26) receives several bomblets (14) which are arranged one behind the other in the tube (26) whilst the tubes (26) are arranged in a group around a central duct in the missile. Each bomblet (14) has a small explosive charge (32) in addition to the main explosive charge (13). This small explosive charge is detonated by a detonator (30) and the subsequent explosion drives the bomblet (14) out of the tube (26). USE - Missiles loaded with bomblets.
Patent DE-3935204-A1 (DE)
Inventor: ARTIGA GONZALEZ RENE-ANDRES DI
IPC: C09K3/10
Filed: 1989-10-23
Abstract: Anaerobically curing sealing compounds containing 40 to 85 parts by weight of (meth)acrylates with a molecular weight in the range of over 400 to 8000, 8 to 20 parts by weight of (meth)acrylic acid derivatives with polar groups and 4 to 27, especially 7.5 to 17.5 parts by weight, of multifunctional (meth)acrylates with 3 to 6 (meth)acrylate functions and, where appropriate, customary additives like initiators, especially 0.5 to 8 parts by weight, accelerators and stabilisers, especially 0.5 to 5 parts by weight, are suitable for the repeatable sealing of pipe unions.
Patent DE-3938367-A1 (DE)
Title: Support plate for dental technicians model - has levelling screws and circular spirit level secured by permanent magnet
Inventor: FATH BRUNO DR MED
IPC: A61B90/00
Filed: 1989-11-20
Abstract: A dental technician's model of a patient's jaw or teeth is brought to a level position by mounting it on a base plate (1) (fig a). This base plate (1) is supported on three legs (2,3) of which two legs (2) are provided with levelling screws. A circular spirit level (4) is attached to the model by means of a permanent magnet (5) (fig. b) and a disc (6) (fig c). The disc (6) has three projections on its undersurface which enable it to be pressed into the plaster of the model and become bonded to the model when the plaster hardens., This disc then receives the magnet which in turn receives the circular spirit level (4). USE - Dentistry.
Patent DE-3941703-A1 (DE)
Title: Pharmaceutical compsns. contg. bumetanid for treatment of hypertonia - contg. pellets, 30 per cent of which give quick release and rest giving slow release of active ingredient
Inventor: FISCHER WILFRIED DR RER NAT
IPC: A61P9/12
Filed: 1989-12-18
Abstract: Prepns. contg. Bumetanid contain pellets, each with a suitable coating which ensures that 30% of pellets, release the active ingredient immediately and that remaining pellets give prolonged release of active ingredient so that the pellets release (a) not more than 30% during 1/4 hr in a buffer soln. of pH 1; (b) 50-55 % after 2 hrs. in a buffer soln. of pH 5.8; and (c) up to 80% after the 4th hr. and more than 85% (practically quantitative) after the 6th hr. in a buffer soln. of pH 7.5. USE/ADVANTAGE - The pellets can be used in the long-term treatment of hypertonia, and avoid the unpleasant diuresis peak usually experienced by patients shortly after taking Bumetanid. The pellets enable small doses of Bumetanid to be used, giving the same therapeutic effect achieved normally with 2-3 times the dose.
Patent DE-4002613-A1 (DE)
Inventor: STEHR NORBERT DR ING
IPC: B02C17/16
Filed: 1990-01-30
Abstract: A stirring mill has a respectively annular cylindrical outer milling space (9') and an inner milling space (9'') which are separated from one another by a pot-shaped stirring mechanism (21), the inner milling space (9'') and the outer milling space (9') being connected to one another by overflow channels (60), constructed in the stirring mechanism (21), for returning bodies (41) which aid in milling. 
<??>In order to improve the milling result and to increase the service life of the bodies which aid in milling and to be able to use still smaller bodies to aid in milling without said bodies being able to pass to a separating device (34) arranged upstream of an outlet for the milled material, in the region of the overflow channels (60) on the inner casing of the stirring mechanism (21) drivers (62) are arranged over a substantial part of the radial width of the inner milling space (9'') and extend therein. 
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Patent DE-4003028-A1 (DE)
Inventor: MUELLER HEINZ
IPC: C09K23/00
Filed: 1990-02-02
Abstract: New N-free emulsifiers for use in oil-based invert emulsions are partial ethers of lower polyfunctional alcohols with monofunctional alcohols containing at least 8 carbon atoms and/or their alkoxylates, preferably glycerin partial ethers. These emulsifiers can be used to make ecologically improved invert drilling fluids of the indicated type which are suitable for non-polluting extraction of geological deposits and have a closed oil phase containing a disperse aqueous phase together with usual additional adjuvants, such as emulsifiers, loading agents, thickeners, fluid-loss additives and alkali reserves.
Patent DE-4004479-A1 (DE)
Title: Electrical voltage setting element - has series of resistance paths printed on carrier cooperating with sliders
Inventor: HEUSER EDGAR
IPC: B60R16/02
Filed: 1990-02-14
Abstract: The setting element has a setting wheel (3) determining the relative position between a resistance path and a cooperating slider (15, 16, 17). The setting wheel has a rotatable pin roller (8) used to transport a carrier (9) in the form of a perforated film. The carrier is printed with a series of resistance paths, brought into alignment with the sliders. Pref. the resistance paths are printed on the carrier sequentially with position markings carried by the setting wheel allowing the carrier to be indexed by the length of a single resistance path. USE - Setting width of motor vehicle headlamp beam.
Patent DE-4010713-A1 (DE)
Title: Insert angle holder for cladding panels - has hinged base plate forming two independent, flexible frames, with guide carriage and stop
Inventor: KLEMENT ROLAND
IPC: E04F13/08
Filed: 1990-04-03
Abstract: Cladding panels are supported on an understrcture by concealed fasteners on mounting. The fastener is in two parts, with one part fastened to the understructure and the other one to a panel support frame. The part attached to the understructure consists of a hinge with leaves (1) which fit around the corner of the understructure. Each leaf has a rectangular hole with side flanges (4) which project over the hole. The panel support frame has attached fitting which fit under the flanges of the holes in the leaves of the hinged corner fitting. USE/ADVANTAGE - For wall or ceiling cladding panels, with precise corner fastening for any panel sizes.
Patent DE-4012770-A1 (DE)
Title: Micro hardness testing arrangement for use with optical microscope - has penetration body mounted in front lens of objective mounted on membrane springs
Inventor: ETZOLD CHRISTFRIED DIPL ING
IPC: G02B21/32
Filed: 1990-04-21
Abstract: A micro hardness testing arrangement has a housing shaped like a microscope lens enclosing individual components and a computer contg. memory, input and output units. A combination contains a penetration body (5) arranged axially in the front lens (3a) of an objective (3), a housing with a connector (2a), a signal acquisition unit and a multiple component z-adjuster. The objective is centred by membrane springs (4) in the housing which also contains a transmitter diode (6) and receiver element (7) with a measurement aperture (8) between them. USE/ADVANTAGE - For use with an optical microscope for measuring penetration into a specimen. High reliability.
Patent DE-4013526-A1 (DE)
Title: Data transmitting circuit between devices - uses two line bus and inductor premagnetisation of transmitter core
Inventor: BENEKEN THOMAS DIPL ING
IPC: H04L12/10
Filed: 1990-04-27
Abstract: A circuit transmits data between devices via bus lines to which the devices and power supply (SV) are connected. The devices are each connected by a transmitter which has twow coils (W1,W2), with equal numbers of windings, connected in series to bus lines (D1,D2) and which have a transformer (SW1) connected between them. A transmitter and receiver is connected to a third coil (W3). A capacitor (C1) is connected between the transformer (SW1) and the bus line (D2).
Patent DE-4026190-A1 (DE)
Title: Audio tape cassette contg. magnetic tape - with coating of pigment and binder on rear face with specified max. coefft. of friction against felt cushion
Inventor: KATSUTA YOSHIHARU
IPC: G11B5/735
Filed: 1990-08-18
Abstract: Cassette (I) comprises (A) cassette housing (B) pair of hubs arranged so they rotate in (A) (C) magnetic tape which is wound around (B) with magnetic layer turned outwards, (D) guide part in (A) and guiding running of (C) (E) felt cushion between (B) and contacting rear face of (C) to press (C) against a magnetic head, (C) having coating (II) on rear face comprising a pigment and binder and having coefft. of friction against (E) of not more than 0.4. Pref. (A) is of synthetic resin esp. ethylene-propylene copolymer or phenolic resin, or composite of ethylene-propylene copolymer and CaCO3 and opt ZnO or of phenolic resin and glass fibres. (E) is of Angora rabbit hair. (II) has max. pencil hardness of 5H. (II) has max. ave. thickness along middle line of 0.03 micron. Pigment in (II) has max. hardness on Moh scale of 4, pigment in (II) is CaCO3. Binder in (II) is resin having max coeffct. of friction against (E) of 0.4 when (II) is formed only from this resin. Resin in (II) is vinyl chloride-vinyl acetate copolymer and/or polyurethane resin. ADVANTAGE - (C) has good running qualities, damage to edge of (C) is avoided, wow, flutter, and modulation hiss are prevented.
Patent DE-4033655-A1 (DE)
Title: Earth-covered storage container - has anchorage preventing containers from sliding and turning
Inventor: SPRECKELMEYER RAINER DIPL ING
IPC: F17C1/00
Filed: 1990-10-23
Abstract: The storage container (1) is anchored in the ground or forms a compound unit with one or more adjoining containers (2,3). The compound unit can comprise tension and/or pressure rods (11,12,15) wherein some parallel rods (11,12) can be combined with a diagonally mounted rod (15). - The parallel rods can be fixed to the domes (4,5) and bases of the containers (1,2,3).
Patent DE-4033714-A1 (DE)
Inventor: KORNFELD SHAUL DR
IPC: G01N33/543
Filed: 1990-10-24
Abstract: Described is a ligand/carrier-protein conjugate in which the ligand is not a protein or a polypeptide and is linked to the protein by a bifunctional spacer unit. The conjugate is characterized in that the ligand has at least one amino group, the protein has at least one sulphydryl (SH) group, and the bifunctional spacer links the ligand to the protein by means of the former's amino group and the latter's SH group. This ligand/carrier-protein conjugate is suitable for use in the preparation of diagnostic agents.
Patent DE-4034393-A1 (DE)
Title: Improved golf club construction
Inventor: LO KUN NAN
IPC: A63B53/00
Filed: 1990-10-29
Abstract: The golf club construction comprises a club head and a shaft. The club head and hte shaft are made of a resin impregnated fibrous material and are interconnected integrally by cohesive-bonding. The club head and the shaft are separate moulded pieces which are joined to one another to form a neck portion in between. The neck portion is wrapped around with layers of the resin impregnated fibrous material. The club head, the shaft and the layers of the resin impregnated fibrous material are cohesively bonded together after application of heat. The club head and the shaft is a one piece moulded article made from the resin impregnated fibrous material.
Patent DE-4040264-A1 (DE)
Title: Compressed air powered searchlight - uses small air-powered turbine for generator behind reflector housing and compressed air cooling giving explosion and fire damp protection
Inventor: HARNISCHMACHER FRIEDHELM
IPC: F21V25/12
Filed: 1990-12-17
Abstract: The lamp (10) comprises a reflector housing (11) with lamp bulb attached to the generator (19) housing containing a small turbine (30) coupled to a generator. The compressed air supply to the lamp passes first around the lamp bulb within the reflector housing to act as coolant and then through internal passages to the turbine. A pressure relief valve maintains the correct pressure for the compressed air. Sealing washers are used throughout and the lamp is explosion-proof and fire-damproof. USE/ADVANTAGE - Especially advantageous where no electrical cables are allowed on safety grounds, e.g, tunnelling, mining.
Patent DE-4102162-A1 (DE)
Title: Quiet running electric fuel pump for motor vehicle - has gear shaped impeller with sloping teeth for controlled axial thrusts
Inventor: SCHELHAS PETER
IPC: F04C2/10
Filed: 1991-01-25
Abstract: The fuel pump has a rotating gearwheel (22) inside a gear ring (25) with inwardly facing teeth, the ring being much larger than the wheel. The gearwheel meshes on one side of the outer ring and forces the ring to rotate around the wheel. The fuel is forced in and out of lateral ducts by the changing volume of the pump chamber formed between the wheel and the ring. The wheel and ring rotate between fixed outer plates. The sloping profile of the gear teeth provide an even reaction force on the gear wheel and prevent it from vibrating with the pump action. ADVANTAGE - No pulsating pump vibrations, quiet running.
Patent DE-4104288-A1 (DE)
Title: Equalising bends in loaded mould tools - by arranging set=up to ensure that both tools deflect equally under applied pressure so that no gap arises to produce extra flash
Inventor: MUELLER DIETER H PROF DR ING
IPC: B30B15/00
Filed: 1991-02-13
Abstract: A layout compensates for differences in the deflections of at least two components with different bending properties, and, in particular, the two tools of a mould. The means of compensating for the differences can be adjusted according to the condition of the mould and the forces acting on the mould. ADVANTAGE - The system functions regardless of the mould tools used, the clamping forces applied to them, or the internal pressures in the mould. The system is universally applicable. It can therefore be used e.g. when the mould is changed over, and requires no change to the clamping plates
Patent DE-4109006-A1 (DE)
Title: Chain driven bicycle dynamo - is connected to guide pinion with dynamo shaft and armature rotated by chain movement and rotation of guide, pinion to induce continuous current in stator windings
Inventor: METZNER STEFAN E
IPC: B62J6/10
Filed: 1991-03-19
Abstract: On the rear wheel strut, the dynamo holder is fixed which folds in to the chain by operation of the dynamo with the connected chain pinion. The drive of the dynamo can be by battery buffering or directly. For bicycles which have a chain gearing arrangement, it is recommended that the dynamo be integrated with its pinion in the gearing, in which case it is positioned in the gearing part. In the area around the rear nave or hub, the dynamo (2) is flanged onto the chain gearing (1), and is activated by rotation of the guide pinion (3), and being folded into the chain. USE - Dynamo for bicycles.
Patent DE-4110737-A1 (DE)
Title: Base for electronic circuit board connection to component - has wedge-shaped pegs or balls movable along rails for combinatorial linking of plug and socket pins
Inventor: EITER PAUL
IPC: H01R29/00
Filed: 1991-04-03
Abstract: The pins (9) of a plug (3) providing connections to a circuit board are linked with the pins of a socket (2) providing connections to an electrical or electronic component, via a plne (6) in which conductive pegs (11) can be moved between spaced positions along rails (12). The number of positions on each rail is one more than the number of pins. The connectors (2, 3) are hinged together (7) and secured by a catch (8b) on the socket engaging with a slotted bracket (8a) formed on the plug (3). ADVANTAGE - Variable combinations between circuit board and component are possible.
Patent DE-4112348-A1 (DE)
Title: Holder for internal mirror in vehicle - makes use of ball joint to position height of mirror
Inventor: BEINHAUER UWE
IPC: B60R1/04
Filed: 1991-04-16
Abstract: The holder is for the internal mirror of a vehicle. It has a holding arm (1) which carries a mirror on a ball joint (1a) and is rotatable about an obliquely set rotary axis (4) arranged at a distance (5) from the holding arm. The distance is determined by a distance piece (1b) on the rotary journal (3). The height of the mirror is maintained by a manually operated catch or by an automatically operating device (8) which connects the holding arm and the mounting base (6). USE/ADVANTAGE - Internal mirror where the height at which it is arranged can easily be adjusted using just one hand.
Patent DE-4115027-A1 (DE)
Title: Fabric workpiece feed - has frame with opening to release bottom layer of stack and rollers to loosen and detach the bottom layer to allow for various thicknesses
Inventor: URANO AKIYOSHI
IPC: B65H3/22
Filed: 1991-05-08
Abstract: The appts. to feed a number of fabric workpieces, of variable thicknesses, has a frame (2) to support the stacked materials with an opening so that the bottom workpiece is partially free. At least one roller (8,8') is at the opening, to come into contact with the bottom workpiece in the stack. The rollers (8,8') are operated by a drive (7,11,13) to rotate them, loosen the bottom fabric workpiece, and form a gap between the bottom fabric layer and the remainder of the stack. The fabric removal system has a drive (16) to move a rod (16a) into the gap between the bottom fabric workpiece and the remainder of the stack, and a further drive (14) to move the rod (16a) to draw the bottom fabric layer downwards. ADVANTAGE - The appts. gives a stable feed of fabric workpieces with different thicknesses, in a compact configuration which is produced at an economic cost.
Patent DE-4116135-A1 (DE)
Title: Roving frame in which high speed winding can be achieved - has the flyer in the form of a bell to shape the bobbin, and prevents hairiness and fluff on winding
Inventor: STEINER HANS ULRICH
IPC: D01H7/26
Filed: 1991-05-17
Abstract: A roving frame utilises a bell in place of a flyer. The bell is shaped in a curve along the bottom edge so that one side is lower than the other. The bell pref. has a top shape of a tumbler and bottom of an apron, hanging lower at the front and with an open curve at the back. This leaves the bobbin partly open during winding for fluff to escape. The tubular form continues through the hole as a tube for the slubbing down to the exit point at the lower edge of the apron. At this point, the arm attached to the bell is bent round and fitted with a presser pad at the end. This lays the slubbing evenly on to the bobbin. ADVANTAGE - The winding can be at high speed to form the correct shape of bobbin. Fluff and hairiness on the winding is avoided.