baber/WOPTO huggingface dataset:
Patent DE-3926249-A1 (DE)
Inventor: KELLER WERNER
IPC: B22D41/08
Filed: 1989-08-09
Abstract: The refractory stator/rotor unit for a nozzle gate of a vessel (11) containing molten metal consists of a stator (15) fastened in the vessel wall (14), and of a rotor (16), which is rotatable in the latter from the underside (11') of the base of the vessel and serves for opening or closing the gate. The unit projecting into the vessel has transverse openings (17, 18) extending therein and, starting from these openings (17, 18), a nozzle opening (19) leading out of the vessel. In the entire region lying within the vessel, a sealing cylindrical surface (20), surrounding the transverse openings (17, 18) is provided between the rotor (16) and the rotator (15) while in the region lying in the vessel wall (14) a clearance (22), compensating for the different thermal expansions of stator and rotor, is provided in order to prevent the unit from seizing. A gate system is thus provided which is very simple and space-saving and functions with high operational reliability. 
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Patent DE-3929273-A1 (DE)
Title: Photographic recording system esp. for passport photographs - has self service booth with automatic adjustment to suit user
Inventor: HAASE ERICH
IPC: G03B17/53
Filed: 1989-09-02
Abstract: The passport photograph facility is provided by a booth (1) that has a front panel in the form of a semi-transparent mirror (8).  Located behind the panel is a recess in which is mounted a cage (4) that can be raised and lowered on a cable by a motor. The base of the cage has a video camera (2) directed onto a ang-le mirror (3). The cage automatically adjusts in height until a sensor (5) cadicates correct positioning relative to the top of the head. The photograph is taken by operating a button (7). ADVANTAGE - Provides automatic adjustment and is of compact form.
Patent DE-3935106-A1 (DE)
Title: Nematic medium for liq. crystal displays - comprises mixt. of liq. crystalline component with min. dielectric anisotropy and pyridin-5-yl trans-substd. cyclohexane-carboxylate
Inventor: HITTICH REINHARD DR
IPC: C09K19/42
Filed: 1989-10-21
Abstract: Medium (I) contains (i) 20-80% (all pts. wt.) liq-crystalline component (A) consisting of one or more cpds.  with dielectric anisotropy over +1.5 (ii) 5-50% component (B) consisting of one or more cpds. of formula (1) m = 1 or 2; R1, R2 each = 1-7C alkyl, where one CH2 can be replaced by -O- or -CH=CH- (iii) 0-40% liq. crystalline component (C) consisting of one or more cpds.  with dielectric anisotropy not more than +1.5 (I) having nematic phase region of at least -10 to +50 deg. C, dielectric anisotropy at least 2, and max. viscosity at 0 deg. C 200 mPa-s, stipulated parameters meaning values measured at 20 deg. C. Also claimed are electro-optic display elements for  multiplex operation contg. (I). USE/ADVANTAGE - Multiplexable electro-optic display elements (claimed). (I) has nematic phase in required range, lower viewing angle dependency of contrast, permits short switching times in liq. crystal cells at room temp.
Patent DE-3940127-A1 (DE)
Title: Injection mould changeover mechanism - has simple drive system with pantograph, moves mould on conveyor rollers, and has cylinders to lock mould in position
Inventor: STEIN WALTER
IPC: B29C45/17
Filed: 1989-12-05
Abstract: A drive for the transverse movement of a carriage for automatic mould change in injection moulding machines has a coupling which moves the mould on rollers into/from the mould daylight, the fixed and moving mould clamping plates being connected on retractable columns. The drive system has a pantograph whose points of intersection have one fixed and one moving limit where a dog is at the moving position; this dog can be engaged by or uncoupled from a hole beneath the mould tools in the inserted or withdrawn positions of the pantograph which correspond to the positions of the mould, namely on the carriage or in the daylight of the moulding press. ADVANTAGE - The design is simple and inexpensive.
Patent DE-3942307-A1 (DE)
Title: Heavy-current switch esp. for plasma X=ray sources - has spherical or otherwise bowl-shaped assembly of anode and enclosed cathode with aligned discharge openings
Inventor: HERZIGER GERD PROF DR ING
IPC: H01J17/40
Filed: 1989-12-21
Abstract: Gas-discharge channels (2) are formed by aligned openings (2',2") through concentric electrodes (3,4) sepd. by a fixed distance (a). The inner electrode (4) surrounds the cathode space (1) into which charge carriers are released by a trigger electrode through openings (10) in an electrode wall (9). The max. depth (t) of this space (1) is about equal to the max. distance (w) between any two channel openings (2') in the cathode (4), which are nowhere diametrically opposed to one another. USE/ADVANTAGE - At voltages up to several tens of kV, currents up to 500 kA increasing at moe than 1 TA/s can be switched very rapidly.
Patent DE-3942652-A1 (DE)
Title: Telescopic shock absorber for vehicle suspension - incorporates system for extending piston rod guide
Inventor: HAJTO JENOE
IPC: B60G15/06
Filed: 1989-12-22
Abstract: Telescopic shock absorber for the wheel suspension of a vehicle consisting of a piston rod in a container tube, a piston rod guide and a support bearing by means of which the piston rod is connected to the vehicle body. The piston rod guide (5) is extended outwardly beyond the container tube (3) and the extended section can be introduced into the support bearing (9,23). USE/ADVANTAGE - Telescopic shock absorber of shorter length which is not subject to bending moments.
Patent DE-4002364-A1 (DE)
Title: Bending esp. of metallic rods, tubes or profiles - involves softening of metal by resistance heating current supplied through fixing clamp and sliding torsion device
Inventor: MANNS KONRAD
IPC: B21D7/02
Filed: 1990-01-25
Abstract: The undeformed workpiece (14) is held between two clamps, one (11) of which has a spindle (18) for taking up differences in dia. of workpieces. The other clamp has a screw adjustment. The workbench (23) supports a plate (25) with holes in various positions for the formation of a template (12). Both the  fixing clamp (11) and the torsion device have electrical connections (15) between which current flows from a transformer (21) for heating and softening the metal. ADVANTAGE - Easier and quicker shaping is achieved with low power consumption and without use of heating oil or other fuel.
Patent DE-4004564-A1 (DE)
Inventor: BRAUN FRANZ-JOSEF
IPC: H02G3/06
Filed: 1990-02-14
Abstract: A pipe junction fitting consisting of plastic, for corrugated pipes, can be swung open in the axial direction, has two half fittings, which are connected via a film hinge and are provided with latching means for mutual latching of the half fittings, and has at least one section, matched to the holder of a corrugated pipe, whose internal space is constructed corresponding to the external circumference of the corrugated pipe. The pipe junction fitting is provided with a connecting piece which has a thread, and a stop fitting is provided, whose external diameter is greater than the external diameter of the connecting piece. 
<??>A pipe connection fitting consisting of plastic, for corrugated pipes of different external diameter, is furthermore proposed and a plastic nut, which can be split, for such pipe connection fittings is used for attaching the connecting piece which is provided with a thread. 
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Patent DE-4021698-A1 (DE)
Title: Letter-box colour television system
Inventor: PLANTHOLT MARTIN DR
IPC: H04N11/16
Filed: 1990-07-07
Abstract: The television signal transmission system has a defined period in which an FBAS signal is handled that has a synchronising pulse, black boundary, colour burst and the video signal which occupies most of the period. In order that the transmission which relates to a 4:3 format reception can handle a 16:9 format, additional data is transmitted. The additional information is transmitted in the ultrablack region (21) of the video signal which is outside of the region corresponding to the standard format signal.
Patent DE-4026933-A1 (DE)
Title: Stripping pliers for conductors of different thicknesses - consists of two pairs of two opposite tong levers forming limbs jointed at centre and pairs of stripping jaws
Inventor: ODENTHAL HANS
IPC: H02G1/12
Filed: 1990-08-25
Abstract: Both pairs of tongs (21,31;22,32) are provided with rounded-off gripping sections as well the cooperating insulation stripping jaws. The pairs of jaws are designed for conductors in different dia. ranges. Cutting lamellae registers are provided with pointed cutting tips and are elastically flexible located in the insulation stripping jaws of the tong limbs. The thickness of the lamellae of the two pairs of insulation stripping jaws is different. ADVANTAGE - Enables wide range of cable dia. to be handled, pref. more than ten times min. dia..
Patent DE-4027423-A1 (DE)
Title: Differential drive using epicyclic gear train -  has pinions with helical teeth which generate axial locking force
Inventor: FRIELINGSDORF HERBERT DIPL ING
IPC: F16H48/26
Filed: 1990-08-30
Abstract: The differential gear has a housing (34) with two end covers (36,37) which form bearings for co-axial shafts. The housing (34) forms a cage for two sets of pinions (41,42). Each pinion of one set (4) meshes with the internally toothed gear (39) of one output shaft whilst each pinion of the other set meshes with the internally toothed gear (38) of the other shaft. The pinions and gears have helical teeth with each pinion being divided into two sections with teeth of different helix angles in each section. The helix angles cause the pinions to move axially when there is a difference in rotational speed between the two output shafts. The axial movement of the pinions exerts a braking force and the faster moving shaft to equalise the drive to the two output shafts. USE/ADVANTAGE- Differential gear with automatic locking.
Patent DE-4027451-A1 (DE)
Title: Cross spring joint for shaft mounting -  has inner and outer cylinders separated by flat springs attached each end to one cylinder
Inventor: KUGEL UDO DIPL ING
IPC: F16D3/00
Filed: 1990-08-30
Abstract: The cross spring joint locates a shaft such that it is rotatable about its axis. An inner cylinder (2) is designed for shaft mounting, and at least one outer cylinder (1) is located coaxially. The inner cylinder is located inside the outer cylinder via flat springs (4) which lie in planes cutting along the axis of the inner cylinder. Each spring is fixed at one end to the inside of the outer cylinder, and at the other end to the outer surface of the inner cylinder. ADVANTAGE - Simple design, flexible mounting of cross-spring link on shaft.
Patent DE-4037029-A1 (DE)
Title: Electron gun for colour CRT - produces good quality circular light points over entire screen using multistage focussing
Inventor: KOH NAM JE
IPC: H01J29/48
Filed: 1990-11-21
Abstract: An electron gun for a colour c.r.t. includes a triode, an electrostatic auxiliary focussing lens, a fourth grid electrode (4), first, lower, focussing electrode unit (5) and an electrostatic fine focussing lens disposed between first, upper accelerating/focussing electrode unit (7) and, a second accelerating/focussing electrode unit. The electron beam, broadened by the magnetic quad-pole lens of the deflecting magnetic field, is compensated in the horizontal direction so it is spread vertically at the entrance to the field which varies in dependence on the size of the deflected  beam so that the ring sections with smaller electron density, which surround the cone of a beam point with higher electron density are greatly reduced. USE/ADVANTAGE - Ensures good light point properties at edges of screen as well as middle, also using multistage focussing system. Reduced aberration.
Patent DE-4037750-A1 (DE)
Title: Day and night duration display - takes account of time of year and geographic width of reference place for use on clocks or watches
Inventor: SCHEIDT WALTER R DIPL ING
IPC: G04B19/26
Filed: 1990-11-28
Abstract: The system can have an analogue or an analogue and a digital indication of the time and time-dependent variables. The dial is provided with a 24 hour calibration, and one hand (2) located on a central shaft completes one revolution in 24 hours. The dial is pref. provided with sector windows and sectors (4,5) are provided which control the duration of the night for each day of the year, controlled to the time of the year, and the geographic width of a reference place, esp. mechanically adjustable via an operating system (45). The dia is pref. designed as a circular LC indicating surface, or is equipped also with an additional LC indicating surface. An adjustable microprocessor free of programmable from outside is provided for adjusting to the geographical width or selectvely to the geographical length of the reference place within a time zone for controlling the LCD image points of the LCD indicating surfaces, for continuous indication of the night hours (12) of each day of the year. USE/ADVANTAGE - Gives precise indication of night and day with real time relationships.
Patent DE-4090910-A1 (DE)
Title: Lateral scanning of napless areas of fabric webs
IPC: D06H3/08
Filed: 1990-06-02
Abstract: The appts. to scan moving fabric webs, partic. towellings, at the plain sections free of pile loops, two transmitters (2,3) are on the first leg (1a) of an angle frame (1), with three receivers (4,5,6) on the other leg (1b). One transmitter (2) acts with receivers (4,5) to scan the longitudinal pile edge (13) of the zone (9) without pile, and the other transmitter (3) works with the remaining receiver (6) to scan the edges of the pile-free zone (12) across the fabric (7).
Patent DE-4101092-A1 (DE)
Inventor: MEYER HORST
IPC: H01R13/514
Filed: 1991-01-16
Abstract: A plug socket box having an elongated plastic housing which is formed from a bottom cover (1) and a cap-shaped upper part (2) which is detachably connected thereto, in which housing one or more plug sockets and/or switches and/or safety chassis and/or communcations inserts and at least one plug connector (6), which is electrically connected by means of built-in wiring, are arranged. The plug sockets and/or switches and/or safety chassis and/or communcations inserts are surrounded on the access side by a covering frame (7) which is held detachably on the upper part (2). On the upper part (2), the plug-device supporting plates (8, 9) are integrally formed in the pot-shape or plate-shape of the plug sockets (3) and/or switches and/or safety chassis (4) and/or communcations inserts (3), and these plug-device supporting plates (8, 9), which are integral with the upper part (2), are gripped by the covering frame (7) which is latched thereto. <IMAGE>
Patent DE-4101996-A1 (DE)
Title: Liquid manure spreading system utilising same tractor tracks - initially discharges outer rows before spreading centre rows
Inventor: STENGLER KARL-HEINZ DR
IPC: A01C23/00
Filed: 1991-01-24
Abstract: The spreader (8) has a liquid container (1), pump (5) and distributor pipes (14,14') with evenly spaced discharge members (10) connected individually by control valves (13) to the distributor pipe. The discharger members are set over a width (B) amounting to a multiple of the width of the chassis (2). A control unit (15) controls selected groups (16,17,18) of control valves (13) so that during the first run over the field the manure is only discharged in outer strips (24,25) outside the tractor tracks (26). During the last run over the field in the same tracks (26) the manure is spread out in a centre strip (27) which covers the tractor tracks. ADVANTAGE - There is less damage to the ground and previously applied manure will now not stick to the tractor wheels.
Patent DE-4102364-A1 (DE)
Title: Piston pump unit - has stepped piston forming two working chambers
Inventor: VOLZ PETER DR
IPC: B60T8/40
Filed: 1991-01-28
Abstract: A primary working chamber (9) is bounded by a pump housing (1) and the front face of a stepped piston (5). A second working chamber (11) is bounded by the piston's smaller diameter section (6), the annular surface (10) facing it, and the housing (1). A discharge valve (14) links the first chamber (9) with the delivery connection (15), whereas the second chamber (11) connects directly with the delivery connection (15). ADVANTAGE - Simple construction and very quiet operation.
Patent DE-4105717-A1 (DE)
Inventor: REIMER PETER DIPL ING
IPC: H01S3/092
Filed: 1991-02-23
Abstract: A laser (1) has a source (2) of pumping radiation, a resonator arrangement, in which a crystal (3) made of a laser-active material is arranged between two mirrors (5, 6), and a reflector (12) that reflects the pumping radiation and directs it onto the crystal. In order to simplify the design of the laser and to generate laser beams having various wavelengths, an additional resonator arrangement having two mirrors (7, 8), between which is arranged a crystal (4) made of laser-active material, is located next to the source of pumping radiation and to the first resonator arrangement. The crystal of the additional resonator arrangement receives the pumping radiation of the single source of pumping radiation directly and over the reflector. The crystal (4) of the additional resonator arrangement is made of a different material than the other crystal (3), so that both crystals generate laser radiations within different wavelength domains.
Patent DE-4106365-A1 (DE)
Title: Plant or flower bowl - is designed for terrace-type planting on balconies on buildings
Inventor: WEBER JOACHIM
IPC: A01G9/02
Filed: 1991-02-28
Abstract: Flower or plant bowls of round, oval, angular or any suitable geometrical shape can be made in various sizes for terrace-type planting. The bowl (1) has a tubular opening (2) and strengthening ribs (3), with holes (5) for the passage of water; a perforated tube (4) can be pushed through the opening (2) for attachment to the balcony or railing. USE/ADVANTAGE - The bowl can be made of material such as wood, metal, plastics, or eternite (RTM), and is suitable for terrace-type planting.
Patent DE-4107285-A1 (DE)
Title: Composite panel for floor of caravan - has core of rigid plastics, with covering bonded to each side
Inventor: SCHMIDT GERHARD
IPC: B32B3/26
Filed: 1991-03-07
Abstract: A composite panel consists of a core of rigid plastic foam (3) with a covering layer (1) bonded to each side. Small depressions are formed in the surface on both sides of the core. These depressions may be of cylindrical form (4) or they may be of semicircular cross-section (5) and are arranged in a regular pattern which extends over the entire surface of each side of the core. These depressions receive the adhesive which bonds the covering layers to the core. The use of small depressions avoids the risk of stress concentration which occurs along the edges of continuous grooves. USE/ADVANTAGE - Panels are used to form the floors of caravans and possess high bending strength combined with low weight.
Patent DE-4110825-A1 (DE)
Title: Snap fit connector for thin pipes
Inventor: WASHIZU KATSUSHI
IPC: F16L37/12
Filed: 1991-04-04
Abstract: The thin pipe connector which comprises a body (1) having a stepped bore for receiving the end of a pipe (P) and containing a sealing ring (3a). The body has a flanged rear wall (1') to which pawls (5) of a thin, elastic metallic material, are clamped by a cap.  Free end portions (5') of the pawls (5) project into a portion of the bore for receiving an external projection (P') on the pipe, to engage behind the projection (P') and secure the pipe (P) in the body (1).
Patent DE-4113627-A1 (DE)
Title: Rubber conveyor belt with low running resistance - includes traction supports, opt. further inserts and has a Shore-A hardness of 45-57 near the running surface
Inventor: GOEHRING HELMUT PROF DR SC TEC
IPC: B65G15/36
Filed: 1991-04-26
Abstract: The rubber conveyor belt has traction supports and opt. further inserts. The rubber has a Shore-A hardness of 45-57 at least near the running surface. USE/ADVANTAGE - The belts are used in belt conveyor systems e.g. in open-pit mining, and have low running resistance.
Patent DE-4115980-A1 (DE)
Title: Panel mounted illumination potentiometer knob - has optical conductors inset at each position that transmit light from fibre optic cable coupled to base unit
Inventor: LIEBCHEN LARS GUNNAR
IPC: G05G1/10
Filed: 1991-05-16
Abstract: The potentiometer unit (7) is panel (6) mounted and has a threaded stem through which the spindle passes. The actuator knob (8) is fixed to the end of the spindle and this has a series of optically conducting bars (1) set on a specific diameter and with uniform spacing. A base unit has a recess (10) into which is set a fibre optic cable (5) coupled to a light source. Light is transmitted through the aligned optical conductor and passes through a coloured transparent foil (2) and cover (4) to indicate the set position. ADVANTAGE - Each set position indicated by light transmitted through fibre optic cable.
Patent DE-4116553-A1 (DE)
Title: Prodn. of fully-ceramic dentures e.g. dental crowns - by embedding elastic rubber model of teeth in mass, converting model into metal casting, burning ceramic mass on model and removing metal by chemical dissolution etc.
Inventor: GENTE MICHAEL DR MED
IPC: A61C13/34
Filed: 1991-05-21
Abstract: The process comprises, producing a model of the teeth or tooth stumps to be provided with dentures from an elastic rubber mass. The model is then embedded in a mass for non-precious metal casting, followed by casting to convert the model into a metal model. A ceramic mass on the obtd. model is then burned up and the metal model is removed by chemical dissolution of the metal. The elastic rubber mass is pref. based on a polyether. USE/ADVANTAGE - Ceramic crowns etc., are produced with high precision using a combination of known techniques. The process can also be used to produce ceramic bodies from sintered ceramic
Patent DE-4125570-A1 (DE)
Title: Connection of pipe to water tap - involves screwed bush with groove to receive turned over edge of pipe
Inventor: KAHLE DIETER
IPC: E03C1/04
Filed: 1991-08-02
Abstract: The water tap has a housing (1) which is connected to a pipe (2). The end edge (21) of the pipe (2) is turned inwards over the end flange of a screwed bush (3). This bush (3) is screwed into the screw thread (10) of the  smaller diameter of the stepped bore (11) in the top body. The bush (3) presses the turned over edge (21) of the pipe (2) against a conical seat formed in the body to make a pressure tight joint. A circumferential groove is formed around the bush (3) between the end flange and screw thread to receive the turned over edge (21) of the pipe (2). USE - Water taps.
Patent DE-4126479-A1 (DE)
Inventor: MISSLITZ ULF DR
IPC: A01N43/80
Filed: 1991-08-09
Abstract: Cyclohexenone oximethers have the formula (I), in which n is 0 to 5; m is 0 to 2; R<1> stands for C1-C6 alkyl; R<2> stands for C1-C4 alkyl or benzyl; A stands for C1-C6 alkylene, C3-C6 alkenylene, C3-C6 alkinylene, C3-C6 alkylene or C4-C6 alkenylene chains, all these elements being optionally substituted. In each of them a methylene group may be substituted by O, S, SO, SO2 or -N(R<a>)-; R<a> stands for H, C1-C4 alkyl, C3-C6 alkenyl, C3-C6 alkinyl; Z stands for phenyl, 5-membered heteroaromate or 6-membered heteroaromate with 1 to 4 N atoms; X stands for NO2, CN, halogen, C1-C4 alkyl, C1-C4 halogenalkyl, C1-C4 alkoxy, C1-C4 alkylthio, C1-C4 halogenalkoxy, COOH, C1-C4 alkoxycarbonyl, optionally substituted benzyloxycarbonyl, optionally substituted phenyl, optionally substituted pyridyl, -NR<b>R<c>,; R<b> stands for H, C1-C4 alkyl, C3-C6 alkenyl, C3-C6 alkinyl, R<c> stands for H, C1-C4 alkyl, C3-C6 alkenyl, C3-C6 alkinyl C1-C6 acyl, optionally substituted benzoyl. The compounds having the formula (I), as well as their salts and esters of C1-C10 carboxylic and anorganic acids useful in agriculture, are suitable as herbicides.