baber/WOPTO huggingface dataset:
Patent DE-3913757-A1 (DE)
Title: New imidazoline-2-acrylic acid derivs. - and related cpds., useful as selective herbicides
Inventor: NORDHOFF ERHARD DIPL CHEM DR
IPC: C07D405/12
Filed: 1989-04-21
Abstract: (A) Imidazolinee-2-acrylic acid derivs. of formula (I) and their optical isomers and salts are new: where R1 = 1-4C alkyl, R2 = 1-6C alkyl or 3-6C cycloalkyl, or CR1R2 = 3-6C cycloalkylidene opt. substd. by Me, A = CH2OH, COOR3 or CONR4R5, R3 = (a)H, (b) 1-12C alkyl opt.  interrupted by one or more O or S atoms and/or substd. by OH, halogen, 1-4C alkoxy, 1-4C alkylthio, 3-6C cycloalkyl, benzyl, etc. (c) 3-8C alkenyl or alkynyl opt. substd. by 1-3C alkoxy, phenyl or halogen, (d) 3-6C cycloalkyl opt. substd. by Me, (e) di(1-4C)alkylmethyleneimino (SiC) or (f) alkali (ne earth) metal, Mn, Cu, Fe, Zn, NH4, or organoammonium, R4 = H, OH, 1-4C alkyl (opt. substd. by OH, halogen, 1-3C alkoxy or 1-3C alkyl(thio) 3C alkenyl or 3C alkynyl R5, R4 or may be NH2, CN, NMe2, NHCOMe or NHPh when R4 = H, B = H, COR6 or SO2R7 when W = O, A = COOR3 and R3 is not H or a cation, R6 = 1-8C alkyl, alkoxy, or alkylthio di(1-8C)amino, 1-6C haloalkyl, or phenyl or phenoxy opt. substd. by halogen, NO2, 1-4C alkyl or 1-4C alkoxy, R7 = 1-8C alkyl, CF3, CCl3 or phenyl (opt. substd.) W = O or S, one of X and Y is 1-6C alkoxy and the other is 1-6C alkyl.
Patent DE-3915154-A1 (DE)
Title: Fixing system for vacuum cleaner filter bag - has stub pipe for reception of filter bag with section radially flexible and fitted at holding plate
Inventor: VOIGT FRIEDER DR ING
IPC: A47L9/14
Filed: 1989-05-09
Abstract: The stub pipe (3) for the reception of the filter bag (1) has an inner dia. (d) and has an outer contour matching the opening of the filter bag. The expansion piece (5) pushed in to the inside of the stub pipe (3) produces a secure and sealing  connection between the stub pipe and the filter bag (2). The outside dia. of the expansion piece is larger than the inner dia. (d) of the pipe stub in the region of the elastic section.  The stub pipe (3) has a bulge (7) around its circumference, which in the pushed on position of the filter bag (1) engages the filter bag edge surrounding the opening. USE/ADVANTAGE - Fixing system for vacuum cleaner filter bag. Tight fixing is ensured independent of outer contour of filter bag.  Filter bag does not stick on its entire surface to filter  paper. Simplifies prodn. and makes possible use of smaller filter bag.
Patent DE-3915576-A1 (DE)
Title: Control circuit for a pulse motor (impulse motor)
Inventor: HIROSHI KUBOTA
IPC: H02P8/14
Filed: 1989-05-12
Abstract: A control circuit for a pulse motor having a winding selection circuit for selecting a group of windings of a phase, which is to be energised, of the pulse motor and having an electricity supply unit for applying an electrical current, whose duty ratio between the switched-on time and the switched-off time is varied with a predetermined period, the electrical current being applied to the winding group selected by the winding selection device, as a result of which the pulse motor can be driven through an angle which is less than the characteristic step angle for pulse motors.
Patent DE-3929722-A1 (DE)
Inventor: FLEMMING GUENTER DR
IPC: B21B45/00
Filed: 1989-09-07
Abstract: In a device for producing steel strip, the steel strip cast in a mould is passed into a horizontally arranged driving and levelling device and then into a temperature equalising furnace. 
<??>To prevent the steel strip (1) running sideways in the temperature equalising furnace (3), an aligning station (11) for the steel strip is arranged between the driving and levelling device (8) and the temperature equalising furnace (3). 
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Patent DE-3930652-A1 (DE)
Title: Continuous rayon filament mfr. - gives prim. drawing at spinning unit and filaments pass in parallel through remaining stages to winding
Inventor: YASUKAWA YOSHIKI
IPC: D01F2/06
Filed: 1989-09-13
Abstract: In the continuous mfg. of rayon filaments, filaments are given a preliminary drawing parallel to each other in the spinning unit. They are passed continuously through a cleaning, drying and winding stage, in sequence while the filaments are advanced in the parallel formation. Pref.  a sec. drawing action is used for the filaments between the spinning unit and the cleaning stage. The washing action, in the cleaning stage, has a sulphur removal action by acid wash and there is a treatment with an oil medium, and this stage can also incorporate a bleaching action. The drying zone is closed. The system uses 100-300 filaments passing along side(s) of the processing units. ADVANTAGE - Technique makes the filaments easier to handle.
Patent DE-3933489-A1 (DE)
Title: Taxi rank - accommodates that one behind other on forward-sloping ramp reached via opposite-sloping rear ramp
Inventor: KERN LUTZ
IPC: E04H6/10
Filed: 1989-10-06
Abstract: The taxi rank for installation in a street, square, etc., comprises a ramp (1) of stone, wood, metal etc., and with a surface (3) sloping in the travel direction. The taxis park one behind the other on this surface, which merges at the front (4) into that of the road (2).  At the rear end there is a surface (6) sloping in the opposite direction, via which the taxis drive in. ADVANTAGE - No need to start a taxi engine each time it moves forward.
Patent DE-3943400-A1 (DE)
Title: Inflatable aerofoil for para glider - is divided into cells with majority of cells fitted with non-return valve
Inventor: RUHFUS MATHIAS
IPC: B64D17/02
Filed: 1989-12-30
Abstract: The para-glider used for sport has a rigid aerofoil which is divided into separate cells which can be inflated to provide the required rigidity. At least one cell has a permanent opening (2) in its leading edge. All the cells have openings (3) in their side walls so that ram air which flows through the opening can flow through these openings to inflate all the cells. The majority of the cells have non-return valves formed by flaps (1) fitted near the leading edge. These flaps open automatically when the pressure inside the associated cell falls below the ram air pressure. USE - Para-gliders.
Patent DE-3943445-A1 (DE)
Title: Surfboard mast mounting - is adjustable away from and along centre line
Inventor: MANK MANFRED DR ING
IPC: B63B15/02
Filed: 1989-12-27
Abstract: The adjustable mounting is for the mast of a sailing vessel and particularly a surfboard. Together with the mast (3) it is adjustable both away from and also along the centre line (16) of the vessel and in opposition to the aerodynamic sail force (29). Mast movement can still be used for steering, the torque thus exerted on the surfboard (4) being dependent on the force exerted by the surfer on the mast. ADVANTAGE - Allows larger sails and leeward listing to improve stability and reduce contact area with water, thus increasing speed.
Patent DE-4000319-A1 (DE)
Title: Nitrogen-oxide reduction system - is for steam generator and delivers carbonaceous material for sub-stoichiometric combustion into fluidised bed
Inventor: REIDICK HEINZ DIPL ING
IPC: F23C10/00
Filed: 1990-01-08
Abstract: The method reduces emission of nitrogen oxides from a steam-generator firing system using pulverised coal and with dry ash extraction. Carbonaceous material is delivered into a fluidised bed (2) at the funnel outlet (1) from the combustion chamber, where it undergoes substochiometric combustion. The fine grains separated from the subsequent fluidised-bed ash sifter (3) are returned to the bed (2). Combustion in the fuel bed is regulated separately from the main combustion system (4). USE/ADVANTAGE - Pulverised coal combustor system keeps NOX emission below prescribed level even when the load alters or mills are cut in and out of use.
Patent DE-4003451-A1 (DE)
Title: Method of supplying carton making machine with blanks
Inventor: FOCKE HEINZ
IPC: B31B50/02
Filed: 1990-02-06
Abstract: The machine for making cartons is fed with cardboard blanks which are joined end to end in a continuous strip and folded in zig-zag fashion. The folded blanks are driven through ducts by endless belts which grip the folded edges of the blanks. The ducts have right angled bends and the blanks (20) are unfolded in a fan-like manner as the group of folded blanks negotiates each bend. After passing around the bend the blanks are pressed back to their previously folded form.
Patent DE-4003522-A1 (DE)
Title: Stepping motor with adaptive set-point current regulator - uses auxiliary controller to reduce desired value of motor current on approach to max. rated value
Inventor: SCHOERLIN FELIX DIPL ING
IPC: H02P8/34
Filed: 1990-02-06
Abstract: A winding (3) behaving as an inductance with an ohmic component draws current from a regulator (4), to whose output (6) is added (S1) the back EMF generated (G) by the rotation. - The measured motor current is fed back (11) for comparison (S2) with the set-point provided by the auxiliary integral controller (10) with allowance (S3) for the current rating (Inenn). Input to the controller (10) is adjusted (S4) by feedback (8) from the output of the main regulator (4) to reduce the set-point (Isoll) as the limit is approached.
Patent DE-4007317-A1 (DE)
Title: New tri:fluoro-chloro-di:fluoro-and tri:chloro-ethoxy-pyrimidine deriv - are intermediates in the prepn. of plant protectants, dyes and pharmaceuticals
Inventor: HAMPRECHT GERHARD DR
IPC: C07D239/60
Filed: 1990-03-08
Abstract: Trifluoro- or chlorodifluoromethoxy-pyrimidine derivs. of formula (I) are new: R3 = H, halo or 1-4C haloalkyl; R1, R2 = H, halo, 1-4C haloalkyl, CF3O or Cl3CO; n = 0 or 1; m = 2 or 3; m+n = 3. Cpds. of formula (II) are also new: R1', R2' = H, halo, 1-4C haloalkyl or Cl3CO. 4 Cpds. of formula (I) and 3 or formula (II), including: 2,4-difluoro-6-trifluoromethoxy-pyrimidine; 2,4-dichloro-6-trichloromethoxy-pyrimidine (IIa); and 2-fluoro-4-trifluoro-methoxy- 6-trifluoromethyl-pyrimidine are specifically claimed.
Patent DE-4007474-A1 (DE)
Title: Fire arrester housing in air conduit - has flaps shutting both inlet and outlet ports
Inventor: MUELLER GOTTFRIED
IPC: A62C2/14
Filed: 1990-03-09
Abstract: The fire-arrester housing in an air conduit system has inlet and outlet ports. There is a hinging flap which is designed to shut off the air current. Flaps (5, 20) are provided to shut off both the inlet (36) and the outlet (30) port when fire breaks out. They can be coupled together, one of them automatically shutting its port off when the other shuts, and holding it in this position. USE/ADVANTAGE - Fire arrester in air conduit system. Safely shuts off air flow of prevent fire spreading.
Patent DE-4007924-A1 (DE)
Title: Radiation-sensitive mixt., esp. for positive photoresists - contains phenolic resin binder in which 30-70 per cent of hydroxyl gps. are protected, esp. by 2-tetra:hydro-pyranyl or -furanyl gps.
Inventor: NGUYEN KIM SON DR
IPC: G03F7/039
Filed: 1990-03-13
Abstract: A radiation-sensitive mixt. (I) is claimed, contg. mainly (a) water-insol., aq. alkali-soluble binder(s) and (b) a cpd. which forms a strong acid when irradiated; the novelty is that (a) is a phenolic resin in which 30-70% of the phenolic OH gps. are replaced by gps. of formula (II). R1, R2 = alkyl; R3 = H or alkyl; or R1 + R2 can form a ring contg. the gp. -(CH2)m- (with m = 3-6). (a) is a mixt. of a phenolic resin and a different novolak, or (a) is poly-(p-hydroxy-styrene) or poly-(p-hydroxy-alpha-methylstyrene) with Mn 200-200,000 and with 30-70% of the OH gps. replaced by (II); (a) contains gps. of formula (III) and (IVA) and (III) and (IVB) (with x = 2 or 3; R' = H or Me; R'', R''' = 1-4C alkyl; pref. (a) is a copolymer of p-hydroxystyrene and 2-tetrahydropyranyloxystyrene or 2-tetrahydrofuranyloxystyrene; (b) is a sulphonium or iodonium salt of formula RaRbRcS(+)X(-) or RaRbI(+)X(-) (with Ra, Rb, Rc = 1-3C alkyl, opt. substd. aryl or aralkyl; X = ClO4, AsF6, SbF6, PF6, BF4 and/or CF3SO3); at least one of the gps. Ra-Rc = phenyl substd. with Rd, Re and Rf (Rd-Rf = H, OH, Hal, or 1-4C alkyl or alkoxy); amts. are 80-99 wt.% (a) and 1-20 wt.% (b); (I) also contains a sensitiser which absorbs radiation and transfers it to (b), and pref. up to 1 wt.% coupling agent, surfactant or dye.
Patent DE-4019869-A1 (DE)
Title: Measuring viscosity of resin in hardening process - applying voltage to electrode or conductive component of product contg. resin and measuring phase shift and amplitude attenuation
Inventor: DENOEL JOSE DR
IPC: G01N33/44
Filed: 1990-06-22
Abstract: An output electrode (4) is introduced into the product such that it is brought into contact with the resin and not with electrically conductive components of the product. This electrode is worked in so that it remains in the product after the resin has hardened. The electrically conductive components of the product are used as the input electrode or at least one input electrode is introduced. The input and output electrodes are spaced from each other but remain in contact via the resin. The input electrode also remains in the product. A voltage is applied to the input electrode or conductive components. The phase shift and attenuation of amplitude of the output voltage are measured and used to calculate the dielectric value of the resin. This, in turn, is used to calculate the viscosity of the resin. USE/ADVANTAGE - Fibre laminated product consisting of carbon fibre and resin layers. Quality control by regulating pressure and temp. in autoclave taking into account unpredictable factors such as age of resin, moisture content.
Patent DE-4020633-A1 (DE)
Title: Circuit for time variant spectral analysis of electrical signals - uses parallel integration circuits feeding summation circuits after amplification and inversions stages
Inventor: VOLKE HANS-JUERGEN DR SC NAT
IPC: A61B5/374
Filed: 1990-06-26
Abstract: The circuit processes electrical signals consisting of n sinusoidal components with variable frequency fluctuating about a known mean foi. A computation circuit is provided for each frequency component. The computation circuits integrate, the cross product of the signal and the cosine of 2xPI t/Ti w.r.t. time t, where Ti = (1 + 0.15)/foi, and feed a summation element with input multiplication factors which are selected so that compoennts yi(t) applied to the input produce minimal output signals xk(t) (i NOT = k).
Patent DE-4023211-A1 (DE)
Title: Lining pipe with film tubing - is by drawing tubular fabric through pipe, coating film tubing with adhesive and inserting inside-out in fabric by air draught
Inventor: PUSEMANN KURT-JUERGEN
IPC: F16L55/165
Filed: 1990-07-19
Abstract: Pipes are lined with film tubing by inflating the film while turning it inside out into the pipe and pressing it against the i.d. of the pipe; before pressing the film inside however a tubular fabric is inserted into the pipe, the film is pressed inside this fabric, and the fabric is pressed against the pipe i.d. The fabric is pref. knitted or woven frompolyester threads. In the first action a tubular fabric (3) is drawn through the pipe (1) by means of a windlass. The film tubing (4) is coated with adhesive and then introduced into the pipe (1) by an air draught by turning it inside out. The fabric (3) thus lies between the film tubing (4) and the wall of the pipe (1). ADVNATAGE - The procedure makes a lined pipe which can withstand high internal pressure.
Patent DE-4024406-A1 (DE)
Title: Flower box with built-in irrigation system - is made of fibre impregnated plastics foam covered with impervious plastics layer and has integral water storage and duct
Inventor: AAGAARD WERNER
IPC: A01G27/02
Filed: 1990-08-01
Abstract: Flower boxes with an irrigation system are constructed with a foam water absorbent plastics or at least the bottom of the box are so constructed. Along the bottom (4) longitudinally a duct is incorporated (11), and a water storage vessel (2) is attached to one end. A layer of fibre (12) is built in to the upper surface of the box (1), and the foam incorporates fibrous particles (13). The outer surface of the box (1) is covered with an impervious plastics layer (14). The duct (11) is built into a rib (10) on the inside of the bottom (4) of the box (1). USE/ADVANTAGE - A water supply sufficient for the needs  is assured.
Patent DE-4028403-A1 (DE)
Title: Thermoelectric electricity generator with solid electrolyte - has two spaces either side of latter with simple interchange of position relative to heat source
Inventor: KNOEDLER REINHARD DR
IPC: H01G9/21
Filed: 1990-09-07
Abstract: The generator (1), allowing direct conversion of heat into electrical energy, has 2 spaces (5,6) held at different temps. by a heat source (14) and separated from one another by a solid electrolyte (4) allowing conduction of alkali ions. The electrolyte (4) has 2 electrodes on opposite sides with a heat transfer medium fed between the space at the higher temp. and the space at the lower temp.  The position of the 2 spaces (5,6) relative to the heat source (14) is interchangeable. Pref. the generator (1) has a cylindrical housing (3) receiving a beaker shaped electrolyte with an outer flange (4F) abutting its inside face for dividing its interior into 2 equal spaces (5,6). ADVANTAGE - Simple interchange of hot and cold generator spaces.
Patent DE-4029424-A1 (DE)
Inventor: BRUNS KLAUS PROF
IPC: C07D307/93
Filed: 1990-09-17
Abstract: The isomeric 11-oxa-tricyclo[7.3.0.0<2,6>]dodecene derivatives proposed are valuable new odoriferous substances characterized by their different nuances of intense woody notes and extremely high persistence. They can be mixed with each other, or with other odoriferous substances, in widely varying proportions to give new perfume compositions, generally containing between 1 and 50 % by wt., relative to the weight of the whole composition, of the derivatives proposed.
Patent DE-4030449-A1 (DE)
Title: Digital picture processing system for X=ray diagnostics - uses TV camera in conjunction with processor to enable further picture processing and quality monitoring
Inventor: MARHOFF PAUL DIPL ING
IPC: H04N5/32
Filed: 1990-09-26
Abstract: The X ray equipment (1,2) passes X rays through patient (3) to tVsca TV camera system (4,5). The video signals are amplified by unit-(6) and passed to central display (9) and monitor (8). A control piece (11) is attached to allow monitoring of quality The digital processing system is constructed from modules. The  analog information from the camera is interconnected with a picture processing unit to produce digital pictures which can then be further processed and redisplayed as required. Pref. an X ray diagnostic deviec is switchable.
Patent DE-4030893-A1 (DE)
Title: Ultrasonic measurement system for welded joints -  uses two channels to differentiate fully automatically between real defects and those arising from reflections
Inventor: MAYER RAIMUND
IPC: G01N29/07
Filed: 1990-09-29
Abstract: The ultrasonic measurement system contains two ultrasonic test heads (2, 3), each with a signal processing and display device (6, 7), i.e. it is a two channel system. The heads are mechanically connected so that their separation distance is an integral step length. The two ultrasonic channels are combined via an evaluation unit (10) so that only indications arising simultaneously in both channels are evaluated or displayed. USE/ADVANTAGE - Enables fully automatic differentiation between real defects and those arising from reflections.
Patent DE-4031776-A1 (DE)
Inventor: KILPER KARL
IPC: F41G1/16
Filed: 1990-10-06
Abstract: In a sighting device with a fore-sight and a diopter (19), the diopter is vertically and laterally adjustable by means of a compound slide rest having a horizontal slide and a vertical slide, with adjustment spindle drives. In order to detect relative displacements of the vertical slide (48) with respect to a frame (33) fastened to the gun, as well as relative displacements of the horizontal slide (49) with respect to the vertical slide (48), an electronic incremental measurement system (28) is provided per slide, which generates characteristic output signals exclusively for relative displacements of the slides (48 and 49) with respect to each other or to the gun from arbitrarily selectable initial positions XO and YO of the horizontal slide and vertical slide, respectively. These output signals form a measurement for incremental changes of position and can be counted by an electronic evaluation unit. The electronic evaluation unit has memory elements in which various competition positions - lying, kneeling, standing - can be stored as optimally associated pairs of values (XL, YL; XK, YK and XS, YS) with respect to the initial position (XO, YO). Displays allow the characteristic pairs of values for the instant position and for the optimal positions of the diopter to be visualized.
Patent DE-4035115-A1 (DE)
Title: Drawing off hot drinking water from heating installation - involves two separate circuits with pressurised fresh cold water supply to secondary circuit
Inventor: SANDLER MARTIN
IPC: F24D3/08
Filed: 1990-11-05
Abstract: The arrangement is for drawing off hot domestic water of drinking quality from a heating installation with one or more heat sources and a hot water container. An intermediate container (12) has a connection (22) for drawing off the water, combined with a circulation pump (16) and a heat exchanger (5). These together form a circuit (20) in a predetermined directional flow. There is a constant connection (15) for fresh cold water under pressure in the circuit. The hot water container (1) forms a second circuit (10) with the same heat exchanger (5) and a second circulation pump (6). A control circuit (25) is activated by signals from a flow recorder (26) and a thermometer (27) controls the pumps (16, 6). USE/ADVANTAGE - A simple and convenient hot water arrangement in a house can supply drinking quality water.
Patent DE-4041418-A1 (DE)
Inventor: DROSSEL ROLF DIPL ING
IPC: G21C1/09
Filed: 1990-12-21
Abstract: Described is a safety-valve unit for a pressurized container (2),the safety-valve unit comprising a valve assembly (6) fitted directly to a connector pipe (4) to form a common housing block (7). The valve assembly (6) includes a safety valve (8) actuated hydraulically by the fluid in the pressurized container (2). The pressure-outlet and control lines (34, 38, and 30) necessary for the operation of the safety valve (8) are located inside the connector pipe (4), the pressurized container (2) and the housing (7), respectively, thus obviating the need for exposed lines.
Patent DE-4105312-A1 (DE)
Title: Application appts. for fluids - comprises main shaft and cap both with oval cross-section, and O=ring
Inventor: NAKAZIMA NOBUYUKI
IPC: B05C17/00
Filed: 1991-02-20
Abstract: The appts. contains a fluid storage part (2) in the form of a sponge impregnated with fluid and located in the main shaft (1). A sealingg part (13) is provided at the rear end of the appts. in the form of an end stop, and a front shaft (4) houses a reservoir (3) which acts as an applicator. The front shaft is firmly fixed to the front end of the main shaft, and the cap (5) fits removably on the front outer peripheral section of the main shaft. An O-ring (6) fits on an outer periphery of the front end of the main shaft in  such a way that it follows, inside the cap, any elastic deformation of the appts. USE - For applying hair colouring fluids, printing inks,  paint, liq. pharmaceutical products.
Patent DE-4107087-A1 (DE)
Title: Motor-driven surfboard for training purposes - has engine with propeller, and foot control pedal
Inventor: PACZKOWSKI KLAUS VON
IPC: B63B35/79
Filed: 1991-03-06
Abstract: The surfboard is without sails, and is for training purposes. An engine with drive propellor is located in the centre of gravity of the board. The drive energy is regulated by compression of a footpedal. Reduction of the pressure on the pedal switches-off the engine. The propellor is located in an intake and pressure channel.