baber/WOPTO huggingface dataset:
Patent DE-3939353-A1 (DE)
Title: Path or angle measuring system - scans measuring track with sequence of markings, providing specified combinations
Inventor: SCHUELER BEN-MICHAEL
IPC: G01D5/249
Filed: 1989-11-24
Abstract: The measuring system scans a sequence of markings, which provide different combination on scanning a number of markings dependent on the logarithm of the relevant number.  From the combinations are decoded information from each individual markings. The appts., uses a coding, e.g. a measuring track on a code disc. W.r.t. the code disc is movable a scanner and a transmitter of a positioning signal, corresp. to the scanning.  The measuring track consists of individual markings, e.g. bits in bright or dark marking, arranged in groups of adjacent individual markings.  The latter are combined in a code word by a number of scanners. ADVANTAGE - Facility for absolute measurement using single code track only.
Patent DE-3940450-A1 (DE)
Inventor: SOLLINGER HANS-PETER DR
IPC: B05B17/06
Filed: 1989-12-07
Abstract: For the purpose of cleaning a doctoring device 1, a groove 3 is provided on the seat of a blade 2, which groove can be filled with fluid. Vibration pulse elements 7 are present which impact the fluid with ultrasonic frequency. As a result, deposits are cleaned from the seat of the blade. 
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Patent DE-3940512-A1 (DE)
Title: Gyro stabilised target seeker for guided missile
Inventor: GIESENBERG PETER
IPC: F25D19/00
Filed: 1989-12-07
Abstract: The target seeker uses a rotor (32) which is free to move about its centre point (20) to all sides, with a rotary axis (34) passing through the centre point (20).  The rotor (32) supports an optical imaging system (36, 40, 28) with a field of view in a plane perpendicular to the rotary axis (34).  The obtained image is received by a detector (62) for providing target signals in turn used to provide missile guidance signals. The detector (629 is contained by a stationary cooling housing (46) relative to which the detector (62) can pivot in all directions about the centre point (20), to maintain it in a plane perpendicular to the rotor axis (34).
Patent DE-3941834-A1 (DE)
Title: Friction type fluid coupling - has solenoid coil outside vee-belt pulley and adjacent to valve body
Inventor: ERATH HERBERT
IPC: F16D35/02
Filed: 1989-12-19
Abstract: The solenoid-operated friction-type fluid coupling is for an engine cooling fan, having a vee-belt pulley rotating with a driving shaft, to which a primary wheel is coupled. The latter works in a chamber in a housing turning freely on the shaft. A storage chamber is connected to the working one via a valve-controlled passage for the fluid. The valve forms the armature of a solenoid coil coaxial to the shaft. The coil body (29) is mounted outside the vee-belt pulley (8, 7) and immediately adjacent to the valve body (26) in the axial direction, being separated from it by the housing (16). ADVANTAGE - Light weight, low cost, and reduced losses in solenoid.
Patent DE-4004687-A1 (DE)
Title: Pourable defoamer granules contg. organo-polysiloxane - contg. silica, plus cellulose ether and mixt. of non-phosphate carrier salts, useful in washing and cleaning compsns., etc.
Inventor: SEITER WOLFGANG DR
IPC: C11D3/22
Filed: 1990-02-15
Abstract: Prepn. of pourable defoamer granulate contg. (a) a water-insol. defoamer (A), i.e. an organopolysiloxane (I) contg. finely-divided SiO2, opt. mixed with paraffin oil and/or paraffin wax; (b) 0.2-3 wt.% mixt. (80:20 - 40:60) of Na carboxymethylcellulose (NaCMC) and methylcellulose (MC); (c) 70-90 wt.% inorganic carrier salt (II), soluble or dispersible in water, and (d) the balance water, is new. An aq. soln. of 2-8 wt.% mixt. (b) is swollen at 15-60 deg.C until the viscosity of the soln. has at least 75% of the viscosity measured for a fully swollen (b) soln., then (a) dispersed in this and after addn. of (II) and opt. water, the homogeneous dispersion is spray-dried. Component (a) is 7.5-15 wt.% and (II) is a phosphate-free mixt. of Na silicate, Na2CO3 and Na2SO4. USE/ADVANTAGE - Replacement of the phosphate carrier (DE3436194) with non-aphosphates gives a product which is less damaging to the environment. Despite a high (A) content the compsn.  is free-flowing and storage stable, and the total amt. of (A) required is reduced.
Patent DE-4007198-A1 (DE)
Title: Electric cooking oven with hot air circulation - provides two partial air streams directed forwards and directly onto cooked food
IPC: A47J39/00
Filed: 1990-03-07
Abstract: The cooking oven has a fan (12) incorporated in the rear wall (17). An associated baffle (30,31) allows the circulated warm air to be divided into partial streams, directed towards the front oven door, a further partial stream being directly fed onto the food being cooked. Pref., respective baffles (30,31) lie adjacent the opposite oven sides (14,15) and extend over the full height of the oven space.  A continuous adjustment allows adjustment of the ratio between the obtained partial streams. ADVANTAGE - Ensures even cooking and easy cleaning of oven interior.
Patent DE-4009694-A1 (DE)
Title: Vehicle theft-prevention system - has automatic gearbox lever acting against lock cylinder cam via control body
Inventor: BOSSE RUEDIGER DIPL ING
IPC: F16H59/10
Filed: 1990-03-27
Abstract: The equipment prevents theft of key-removal from a vehicle with ignition lock (1) containing a cylinder (4) turning in a housing (3). On the cylinder is a cam (4a), against which a control body (5) acts. A slide (9) acting on the body has a control ramp face, and is moved by the selector lever (22) of an automatic geaFbox (23). The slide is fixed so that it cannot slide onto a transmission member between lever and gearbox, while there is a transmission mechanism between slide and control body. ADVANTAGE - Easy operation of key, or fitting to an existing vehicle.
Patent DE-4011965-A1 (DE)
Title: Quality control device for axi-symmetrical parts - uses photocomparison techniques to gauge size with computer processing image
IPC: B07C5/10
Filed: 1990-04-12
Abstract: A turntable (4) driven by a stepped motor receives axi-symmetrical parts (1). A camera (6) is synchronised with the stepper motor so that outlines of the part are taken when the turntable is stationary. A computer (17) processes the image of the part outline and compares it with what it should be. Any rejects are identified and ejected into the reject box (24). ADVANTAGE - Reliability of device is improved by using diffuse light to avoid shadows and high colour contrast between turn table and work piece and has high throughput.
Patent DE-4017107-A1 (DE)
Title: Continuously operating open-cut mining device
Inventor: GRATHOFF HARTMUT DIPL ING
IPC: E02F3/24
Filed: 1990-05-28
Abstract: A caterpillar-mounted, self-propelled, continuously operating open-cast mining machine having a  drum-shaped mining device with cutting tools arranged around the circumference of the drum. The cutting drum (1) is equipped with cutting teeth (4) which can cut in both directions and the  mined material is guided into the interior of the cutting drum (1), with the cutter bars (2) being arranged in a substantially axial pattern on the circumference of the drum. The teeth holders (3) are arranged on the cutter bars (2) and carry teeth (4a, 4b) and the teeth holders (3) with the teeth (4a, 4b) are pivotable about an axis (8) in such a way that the teeth (4a) pointing in the direction of rotation of the drum pivot automatically into the cutting position as they engage in the material to be extracted, while the teeth (4b) pointing in the opposite direction are simultaneously pivoted out of the clearance angle zone (6) of the teeth (4a) doing the actual cutting. The mined material is transported by means of the cutter bars (2) and the flights (33) via a curved liner (9) and a feed chute (10) onto a discharge belt (11) arranged axially inside the cutting drum (1). The cutter bars (2) are joined together with the rotating ring members (35) by conical rings (37) bearing radially arranged ribs (38). The discharge belt (11) carries the mined material to the end of the drum where the material is transferred to further conveyor belts (12, 13, 14) located outside the cutting drum (1). @(40pp Dwg.No.1/11)@
Patent DE-4017197-A1 (DE)
Title: Prefabricated wall element mfr. - by casting concrete between machined wall face shell elements
Inventor: ALTEKRUEGER GUENTER
IPC: E04B2/86
Filed: 1990-05-29
Abstract: Mfr. of prefabricated wall elements involves cutting two associated shell elements used to form the wall faces, mounting the elements at a distance from one another and then filling the gap between the elements. Also claimed is a prefabricated wall element with length and width dimensions corresponding to those of the finished wall. Pref. the outer shell element (1) consists of rigid foam and the inner shell element (2) consists of constructional board pref. with a thin polyurethane foam layer on its inner face. USE/ADVANTAGE - To prefabricate concrete wall elements. Mfr.  is simple and inexpensive and is adaptable to various selected locations of openings (e.g. doors and windows).
Patent DE-4018721-A1 (DE)
Title: Outputting print data in data processing system - additionally sending data in parallel to additional print mechanism for printing dispatch forms
Inventor: BOETTNER JAN-CLAUS
IPC: B07C3/18
Filed: 1990-06-12
Abstract: The method of outputting  data in data processing system involves passing the data defined for output to a printer additionally in parallel form in its entirety or in part to a further print mechanism. USE/ADVANTAGE - Enables a despatch form to be printed using conventional programs, print mechanisms and data programming systems without additional operational steps and without use of expensive and cost intensive carrier materials.
Patent DE-4023504-A1 (DE)
Title: Measurement arrangement checking workpiece dimensions - has fixed measurement element, and sensing element in contact with measurement surface
Inventor: KNAEBEL HORST DIPL ING
IPC: G01B7/00
Filed: 1990-07-24
Abstract: A measurement arrangement for installation in a carrier for checking the dimensions of objects, such as mechanical workpieces, contains a fixed measurement element (9,10) and a separate sensing element (15) in contact with the measurement surface. The distance between the measurement and sensing elements forms a measurement parameter. The measurement and sensing elements are attached to a base body (7). The measurement element is an electrical field carrier and the sensing element is a deflection body or a carrier for a deflection body. USE/ADVANTAGE - Compact, self-cleaning. Produces summing measurement result suitable for computer processing and enables high measurement frequency at low cost.
Patent DE-4025186-A1 (DE)
Title: Poly-hydantoin and poly-isocyanurate-poly-oxazolidinone resin mixt. - useful for prodn. of cast film, mouldings and printed circuit boards with low shrinkage at high temp.
Inventor: JONAS FRIEDRICH DIPL CHEM DR
IPC: C08L79/08
Filed: 1990-08-09
Abstract: Mixts. (I) of 95-10 wt.% polyhydantoin (II) and 5-90 wt.% polyisocyanurate/-polyoxazolidinone resin (III) are claimed. Pref., (II) are polyhydantoin resins as described, e.g. in DE-A 1795751 and 3913586, and pref. (III) is EPIC resin (RTM: solid at below 50 deg.C; B-stage resin, see DE-A 3644382); Prodn. of film involves casting from a soln. of (II) and (III) in a solvent such as CH2Cl2 or CHCl3, in presence of a latent catalyst e.g.  salts of amines and phosphonate esters, or BHal3/tert. amine complexes). USE/ADVANTAGE - (I) are useful for the prodn. of films and fibre-reinforced materials (claimed). The invention provides heat-resistant polyhydantoin-based materials with little or no shrinkage at high temp. (contrast unmodified polyhydantoins), suitable for prodn. of mouldings, cast film, printed circuit boards, etc.
Patent DE-4025600-A1 (DE)
Title: Machine for removal of rind and skin from meat and fish - cutting blade moves automatically against spring load into working position as meat contacts blade
Inventor: NOCK FERDINAND
IPC: A22C25/17
Filed: 1990-08-13
Abstract: A machine for removal of both rind and skin from meat and fish. A cutting blade under load from the food being processed moves automatically against the force of a main spring into a working position defined by an end stop. The knife holder is connected to a lever arm forming part of an adjusting lever arrangement onto which the main spring applies a load. The knife holder is also connected to a sliding guide located on the cutting edge side of the knifeholder and running parallel to a tangent to the upper crown of the conveyor roller. A second spring acting on a crank governing the slide movement, presses the knife towards the conveyor roller surface. Switching from rind to skin removal is effected by a mechanism which limits main spring travel and forces the knife holder against the fixed end stop. USE/ADVANTAGE - The machine removes both rind and skin from meat and fish, automatically adapts to rind thickness and yet carefully removes the skin.
Patent DE-4031514-A1 (DE)
Title: Catalystic reactor for compensating catalyst shrinkage in catalyst tubes -  has catalyst supply hoppers fitted to catalyst tubes, with inernal vol. corresp. to catalyst vol. redn.
Inventor: BAEHNISCH HANS-JOACHIM
IPC: B01J8/06
Filed: 1990-10-05
Abstract: In a catalytic reactor with tubes contg. catalytic material which shrinks on chemical redn. with e.g. H2 and/or CO during reactor start-up, the upper free ends (2a) of the catalyst tubes (2) are fitted with catalyst supply hoppers (6) having an interior volume corresponding to at least the catalyst volume redn. Pref. each hopper (6) has a main portion of larger effective cross-section than the catalyst tube (2) and tapers to the catalyst tube diameter at its lower end. The lower end of each hopper may be in the form of an inserted element in the catalyst tube. Sealing elements (8) are pref. provided between the outer hoppers (6) and the inner wall (7) of the gas dome (5) of the reactor. USE/ADVANTAGE - Useful for methanol synthesis or low temp. CO conversion. The decision prevents formation of catalyst-free regions in the tubes during reactor operation.
Patent DE-4034722-A1 (DE)
Title: Introducing molten metal through immersion tube
Inventor: SCHNEIDER RALF DR
IPC: B22D41/56
Filed: 1990-10-29
Abstract: Molten metal is introduced to a mould from a ladle or tundish through a discharge opening which excludes air from an undisturbed flow path. The discharge opening located at the bottom of the tundish has a closure plane in an immersion tube which rotates about an offset axis to the main axis of the tundish.  metal flow is blocked when the discharge opening and the tundish passage opening are not aligned. The opening and closure appts. provides for transport and treatment of the melt without impairment of the slide closure over a long period of treatment or from mechanical damage during transport operations.
Patent DE-4041216-A1 (DE)
Title: Solns. for recovery of enantiomers by fractional crystallisation - contain organic solvents and 0-15 wt. per-cent water and one of the enantiomers in excess and when seeded with racemate, crystallise out racemate
Inventor: KAMPE KLAUS-DIETER DR
IPC: C07D233/54
Filed: 1990-12-21
Abstract: Solns. contg. organic solvent(s) and 0-15 wt.% water and one of the two enantiomers of formula (I) in excess and from which pref. the racemate crystallises out, enriching the amt. of the enantiomer originally in excess, are new. (where R1 = H, F, Cl, Br or Me; R2 = H or Me). USE/ADVANTAGE - The solns. can be used in the sepn. of enantiomers of chiral organic cpds. by fractional distn. without the need to convert (I) into diastereomeric salts e.g. hydrogen tartrate and then liberate (I) repeatedly. One conversion into the hydrogen tartrate using the cheaper (2R,3R)-(+)-tartaric acid suffices and one crystallisation step gives solns. of (I) with excess of an enantiomer used to crystallise out the racemate, further enriching the enantiomer in excess. This saves time and materials. The sepn. of racemates of (I) is achieved with high yields. The enantiomer is enriched in the soln. to an amt. of up to 97% of the specific optical rotation.
Patent DE-4101503-A1 (DE)
Title: Lockable surface box - has spindle with screw thread and nut-like locking bolt
Inventor: EIGLSPERGER JOHANN
IPC: E03B9/10
Filed: 1991-01-19
Abstract: The surface box is for underground shut-off devices for gas or water pipes. It consists of a tubular housing (1), with top cover (2), having an inward-projecting spindle (3), which is turnable from the top of the cover. The spindle has a radially-projecting bolt (5), which engages under a projection (7) on the internal housing side. The spindle has a screw thread (4), on which the bolt is turnable like a nut. A ring segment-like web forms the projection, and has a stop (9) on its underside. The bolt engages on the stop, in locking position, and in unlocking position.
Patent DE-4105625-A1 (DE)
Title: Inflatable seal for use e.g. between cable and duct - consists of e.g. laminate of plastic films which is folded over, suitably bonded to form envelope
Inventor: PEACOCK DONALD GEORGE
IPC: H02G3/22
Filed: 1991-02-22
Abstract: A seal for the space between a cable duct and the article inside it has an inflatable covering which is impervious to gases; this covering is produced by folding over a flat film to make one or more overlaps and bonding and/or welding these together. The film used is preferably a laminate of a polymer, a strongly orientated polymer, aluminium foil, and another polymer layer. The laminate or film used is produced as a rectangular sheet and coated with adhesive (20) in the form of strips running near to and parallel to each side (i.e. 20 and 21). The sheet is next folded over close to each end, so that the two fold lines (23) are parallel to each other, but the folded ends to not overlap each other. Similarly the two longer edges are also folded over inwards (e.g. along the line 26). An area left between the strips of adhesive receives a separating film to prevent sticking (30) and the product thus form an envelope. A small tube, preferably with valve, is let in between the top overlaps and all the overlaps are e.g. bonded/pressed together. The product can then be wrapped round a cable and inflated. ADVANTAGE - The seal is produced simply by applying compressed air.
Patent DE-4106505-A1 (DE)
Title: Over voltage protection appts. for house-connected data lines - has conductive paths to effect discharge to ground e.g. from lightning
Inventor: SCHLUETER DIETER
IPC: H02H9/06
Filed: 1991-03-01
Abstract: A voltage overload protection system is used with data information cables used on a LAN between different buildings. Each cable (14) has two cores (12,13) that connect internal equipment housed in metal boxes (20,20'). The boxes are connected to a ground line. The internal and external screening of the cable is connected to overload voltage elements (24-27) and a ground line (21) connects to a parallel bridge (16), gas conductor (17) and capacitor (18). ADVANTAGE - Can be monitored and secured against external interference.
Patent DE-4111742-A1 (DE)
Title: Mass-spectrometer measuring ions and neutral particles - uses retractable probe and HF-plasma for neutrals
Inventor: OSWALD STEFFEN
IPC: G01N23/225
Filed: 1991-04-06
Abstract: The beam from a primary ion source (3) in a vacuum vessel (1) passes through a raster system (15) onto a probe which is retractable from the lens stage (8) and is a source of secondary ions (6a, 6b). The ions are drawn off by a snow plough electrode and focussed through an electrostatic lens (11) into a  mass-spectrometer (12). When the probe is lowered below the lens stage (6b) the neutral particles are ionised in an HF-plasma generated in the lower section by admitting gas through a differential pumping-system. ADVANTAGE - Enables analysis of sec. ions and neutral particles  from same ion-source.
Patent DE-4114629-A1 (DE)
Title: Light conductor with coupling surface - has beam coupling wedge shaped extension of surface where cladding is removed
Inventor: RUHE WILFRIED DIPL ING
IPC: G02B6/28
Filed: 1991-04-30
Abstract: A light conductor (10) is provided with a coupling surface. Over a short area (20) of the conductor the coating (12) around the core (11) is removed. The coating in this region (20) is replaced by a material (13) which has a higher refractive index than the core (11). Pref., the higher index material (13) is placed on the conductor such that it has a triangular cross-section (14). The triangle is pref. a right-angled triangle whose hypoteneuse is parallel to the core (11) and slopes upwards in the beam advancing direction. The gradient of the short side (15) of the triangle (14) so that the emergent light (17) is not guided back into the core. The output surface (18) of the extension (14) may have a convex curved surface. ADVANTAGE - Increases degree of out-coupling of conductor and greatly reduces energy loss.
Patent DE-4119265-A1 (DE)
Title: Laser transmission frequency stabilisation in fibre=optic network - by tuning, e.g. Fabry-Perot, filter between beam-splitters associated with laser-and filter-stabilising photodetectors
Inventor: MUEHLNIKEL GERD DIPL ING
IPC: H01S5/0687
Filed: 1991-06-12
Abstract: The passband of the adjustable periodic filter is tuned to the desired transmission frequency of the laser. Part of the emitted optical power is diverted by a first divider between this filter and the glass fibre leading to the exchange. A second power divider between the filter and the laser diverts part of the light transmitted from the exchange for filter tuning. The laser frequency is adjusted for max. output from its photodetector. ADVANTAGE - Frequency stability is guaranteed by suitably inexpensive method for subscriber stations which both receive and transmit.
Patent DE-4120455-A1 (DE)
Title: Sliding piston gear with positive end stop - has locking clamp on piston rod and end position flange with release piston located between cylinder and flange
Inventor: SCHMEING JOSEF
IPC: F15B15/26
Filed: 1991-06-21
Abstract: The sliding piston (1) has one or more locking clamps (10) and can be locked into and released from its end position either manually or by hydraulic or pneumatic members. The thrust piston (6) slides in the axial direction of the piston rod (5), to which a fixed locking clamp (10) is mounted. At the end position a locking flange (7) is joined to the cylinder barrel. A release piston (8) is located between the base (2) or top (3) of the cylinder and the flange (7). The flange (7) and release piston (8) have locking surfaces (13, 14) which can be gripped by parts of the locking clamp (10). USE/ADVANTAGE - For use with single or double acting cylinders with locking at one or both ends. A simple and reliable locking method.
Patent DE-4121589-A1 (DE)
Title: Automatic emergency call system using standard telephone - includes auxiliary telephone attachment incorporating memories for emergency call number and emergency message
Inventor: ZWINGEL DIETER DR RER NAT
IPC: H04M11/04
Filed: 1991-06-29
Abstract: The emergency call system requires an attachment (6) for the telephone (2) with a control device (10) allowing signals provided via the telephone keyboard (5) to be entered in an emergency call number memory (11) and also allowing speech signals provided via the telephone microphone (4) to be entered in an emergency message memory (12). Pref. the control device responds to operation of an emergency call button (13) for initiating the emergency call, with an electronic blocking device for disconnecting the telephone microphone. USE - Automatic placing of emergency assistance call.