baber/WOPTO huggingface dataset:
Patent DE-3929782-A1 (DE)
Title: Cleaning of heat exchanger tubes - by driving cleaning balls through tubes by water pressure
Inventor: BAEHR SIEGFRIED
IPC: F28G1/12
Filed: 1989-09-07
Abstract: Heat exchanger tubes, which may be either straight or U shaped, are cleaned by driving balls through the tubes by means of water pressure.  The tube (11) to be cleaned has a Y piece (3) connected to each end whilst the remaining tubes (4) are sealed at each end by plugs (13) supported by a plate (2). The branch (12) of one Y piece is connected to a pump (9).  The cleaning balls are inserted through the straight part of the Y piece which is then closed with the plug (10).  The water pressure generated by the pump (9) drives the balls through the pipes to clean them. USE - Cleaning of heat exchanger tubes.
Patent DE-3932170-A1 (DE)
Title: Display device for domestic appliance - displays energy consumption for selected program before program start
Inventor: JUNG GUENTHER ING GRAD
IPC: D06F34/32
Filed: 1989-09-27
Abstract: A display device for electric household appliances - e.g.  washing machines, dish-washers, cookers - with an electronic program control installation and comprises a display field integrated in the appliance. The field displays, before the start of a program, the forecast energy consumption which is determined by the selected program and is stored in a  storage of the program control device. ADVANTAGE - The appliance encourages the operator to select energy-saving programs.
Patent DE-3933678-A1 (DE)
Inventor: SIMETH CLAUS
IPC: B41F27/12
Filed: 1989-10-09
Abstract: PCT No. PCT/EP90/01686 Sec. 371 Date Jun. 4, 1991 Sec. 102(e) Date Jun. 4, 1991 PCT Filed Oct. 9, 1990 PCT Pub. No. WO91/04859 PCT Pub. Date Apr. 18, 1991.The accurately positioned tensioning of a printing plate on the printing cylinder of a printing mechanism. The circumference of the printing cylinder has a groove extending in the axial direction of the cylinder which accommodates a tensioning and fastening mechanism for the printing plate. The mechanism includes a front tensioning bar for the start of printing of the printing plate and a rear tensioning bar for the end of printing of the printing plate, the rear tensioning bar being disposed ahead of the front tensioning bar in the direction of rotation of the printing cylinder. Releasable fastening of the ends of the printing plate to the two tensioning bars, displacement of the rear tensioning bar in the circumferential direction of the printing cylinder over a longer tensioning path for the purpose of tensioning the printing plate over the circumference of the cylinder, and displacement of the front tensioning bar in the circumferential direction of the printing cylinder over a smaller adjustment path for adjusting the image to be printed are provided for. Adjustment of the printing plate is further facilitated by a stop fixed to the cylinder as the zero position disposed at the side of the front tensioning bar and oriented toward the rear tensioning bar. A spring urges the front tensioning bar against the stop.
Patent DE-3935056-A1 (DE)
Title: Controlling paper feed in folding machines - using opto-electronic sensors to monitor passage of paper through machine
Inventor: BRESSERT EDGAR
IPC: B65H45/12
Filed: 1989-10-20
Abstract: A high speed paper sheet handling system has four units (10,12,14,16) coupled in series for folding operations. Each unit has three sensors coupled to counter stages (4) and a pulse generator (2). The sensors are of an opto-electronic type that reflect light from the surfaces of the passing sheets of paper. The sensors distinguish between the presence and absence of the sheet and provide an edge detection capability. Manually operated switches allows the units to be operated for test purposes. ADVANTAGE - Rapid identification of faults in folding.
Patent DE-3943207-A1 (DE)
Title: Fuel ratio control for IC engine with electronic fuel injection - detects individual operating parameters for each engine cylinder and uses microprocessor to evaluate them
Inventor: ATAGO TAKESHI
IPC: F02D41/14
Filed: 1989-12-28
Abstract: The fuel ratio control, has a sensor (8) detecting the quantity of air (Qa) fed to one of the engine cylinders (24), a signal processor (16) providing a signal representing the engine revs (N) and a sensor (18) providing a mixture ratio signed for the exhaust from each engine cylinder (24). A microprocessor evaluates the measured parameters to calculate the fuel quantity for each fuel injection jet (22), with independent regulation of the individual fuel injetcion jets (22). ADVANTAGE - Accurate fuel injection regulation for each individual engine cylinder.
Patent DE-4002579-A1 (DE)
Title: Monitoring pneumatic conveyor for filling-up underground workings - using parallel evacuated line to measure dust content, and instigate alarm at critical level
IPC: E21F15/08
Filed: 1990-01-30
Abstract: The conveyor (1) carries an evacuated measuring line (2) mounted, on e.g. 100 mm supports (5), and coupled to a dust-measuring device (4) by a suction pump or injector (6). At a predetermined dust content the measuring device (4) operates a switch (7) to interrupt the air flow in a predetermined time sequence, and pref. simultaneously to show visually on which section penetration by dust has occurred, either on the section itself or at the associated monitoring station. ADVANTAGE - Time taken to establish dust permeation is minimised and alarm delay is reduced.
Patent DE-4006401-A1 (DE)
Title: Crosslinked copolymers are prepd. by polymerising - cyclic aliphatic ester with cyclic aliphatic carbonate having crosslinking-active gps. then crosslinking with radical source, esp. peroxide
Inventor: HOECKER HARTWIG PROF DIPL CHEM
IPC: C08G63/64
Filed: 1990-03-01
Abstract: Crosslinked copolymers (I) prepd. from (A) 5-99.5% (all pts.wt.) cyclic aliphatic ester (B) 0.5-95% cyclic aliphatic carbonate of which at least part (B1) is such a carbonate with side gps. active in crosslinking are claimed. - Prepn. of (I) by (1) polymerising (A) and (B) in aprotic solvent at -100 to +50 deg.C (2) opt. isolating copolymer (3) crosslinking copolymer at +80 to +250 deg.C in melt in presence of source of radicals.
Patent DE-4007950-A1 (DE)
Title: Shuttering panel clamping connector - has fixed and adjustable claws on traverse, engaging panel frame recesses
Inventor: SCHWANEKAMP WOLFGANG
IPC: E04G17/00
Filed: 1990-03-13
Abstract: The connector clamps shuttering panels, with each panel fitted with a peripheral frame, whose sections have undercut recesses open towards the inside. A traverse (2), placed against the rear side of the frame, has claws (4,6) hooking into the recesses of adjacent panels to clamp them together. Two pairs of claws are mounted on the sides of the traverse, and are spaced for the width of the frame section (19).  One pair is adjustable on the traverse w.r.t. the other pair by a detachable clamp (13, 14), acting between its free end and an outside surface (15) of the improved, traverse. ADVANTAGE - Improved, simple design, and versatility.
Patent DE-4009794-A1 (DE)
Title: Shutter triggering synchronisation for photogrammetric measurement - measuring triggering opening delay of each and delaying one or more accordingly
Inventor: KUNZE WERNER DR ING
IPC: G03B17/40
Filed: 1990-03-27
Abstract: Synchronisation of shutter triggering of at least two photogrammetric measurement chambers involves determining the delay between generating the triggering pulse and the actual shutter opening for each chamber and delaying at least one chamber accordingly. The delay can be determined by using an already provided indicator signal, i.e. the flash contact signal of each shutter.  The shutter opening of the faster reacting shutter can be delayed.  A defined delay between the shutters can be set up. USE/ADVANTAGE - For synchronising shutter opening of two phtogrammetric measurement chambers or setting defined time intervals.
Patent DE-4010033-A1 (DE)
Title: Radar-type control sensor - has sequencer operating antenna, sensor, amplifier, converter, memory, comparator and trigger
Inventor: LINDNER KURT DIPL ING
IPC: G01S7/41
Filed: 1990-03-29
Abstract: The sensor comprises the series circuit of an antenna (30), a radar sensor (31) an amplifier (32), a converter (33) for the time-region or the spectral region, a store (34), a comparator (35), a trigger (36), as well as a sequence controller (37) operating the devices. The sequence controller pref. operates direct on all or a few of the modules in a control or regulation sense. The radar sensor may have plural polarisations of the irradiation and the reception direction, which when evaluated are series or parallel processed. USE/ADVANTAGE - Robot automated production system quality control and monitoring. Easily made, cheap and material saving.
Patent DE-4017368-A1 (DE)
Title: Cleaning insides of pipes - involves guide carriage with centring rods and spring-loaded lever arms
Inventor: MUNDING HARALD
IPC: B08B9/053
Filed: 1990-05-30
Abstract: The device for cleaning the inside face of pipes has at least one rotary nozzle arrangement arranged concentric by means of a guide carriage which consists of a centring rod linkage which is inserted into the pipe (1) secured against rotation relative to the rotary nozzle arrangement (6,7a,7b,8a,8b).  The centring rod linkage consists of at least three offset spring-loaded arms (18) attached for articulated movement to a bearing ring (17) or sleeve (11) on tongue-shaped bearing brackets or in recesses. The lever arms are longer than the radius of the pipe but are of equal length with each other.  The lever arms each swivel against rhe force of a spring towards the longitudinal axis of the pipe on insertion into the pipe and are supported against the inner face of the pipe.  The flow pipe (10) for the rotary nozzle arrangement runs centrally in the bearing ring (17) or the sleeve (11). USE/ADVANTAGE - The appts. can be inserted in pipes of different dia. without having to change the guide elements.
Patent DE-4024068-A1 (DE)
Title: Faraday-cage for plug-in cassette in 19-inch rack format - has sprung contacts on side-covers with through-contact on circuit board
Inventor: MAYER HERBERT DIPL ING
IPC: H05K9/00
Filed: 1990-07-28
Abstract: An electrical circuit board (2) is contained in a plug-in cassette fitting the guides (9) of a standard 19 inch unit (10). The board is screened on both sides with screw-on metal panels (3,4) which are fitted with internal sprung contacts (11,12) on flanges bent in to meet the board surface on either side of a conductor incorporated in its edge (15). Spacing between the panels is maintained by hollow threaded pillars fastened between them (18). The Faraday-Cage thus formed gives screening protection against high-frequency fields of from 120 to 150 dB. USE/ADVANTAGE - E.g. for directional radio appts. Permits operation of HF circuits in proximity to extremely interference-prone or sensitive units.
Patent DE-4024071-A1 (DE)
Title: Swivel mounted vehicle seat - is capable of change in centre of gravity in accident
Inventor: WILLE HOLGER DR
IPC: B60N2/04
Filed: 1990-07-28
Abstract: The vehicle seat (23) can be swivelled about a horizontal transverse axis (42). This has a locking arrangement to prevent the swivel action. The centre of gravity of the seat is changed when the vehicle exceeds a preset retardation boundary value, causing the upper part of the seat to swivel backwards relative to the vehicle bodywork. USE/ADVANTAGE - Method for avoiding or reducing head injuries to a seat occupant in a vehicle in the event of an accident.
Patent DE-4028223-A1 (DE)
Title: Neutron optical detector with neutron luminous screen -  mounted on photoresistance to prevent light loss
Inventor: STOCKMEYER ROLF DR
IPC: G01T1/26
Filed: 1990-09-06
Abstract: A neutron optical detector contains a neutron luminous screen (NS) arranged in the beam path in front of a conventional photoresistance (PW). The neutron luminous screen can be applied to the photoresistance. The neutron luminous screen contains the components LiGF, ZnS(ag) and water glass. USE/ADVANTAGE - New type in which arranging neutron luminous screen directly on photoresistance prevents light losses. Can be mfd. at low cost.
Patent DE-4031575-A1 (DE)
Inventor: SCHUREN GERARDUS WILHELMUS
IPC: C08G8/08
Filed: 1990-10-05
Abstract: A phenol resin is produced by reacting phenolic compounds, preferably compounds based on bisphenol, in particular bis(hydroxyphenyl)alkane, with formaldehyde and/or a formaldehyde-splitting compound in the presence of a catalyst. The ratio of the total number of reactive sites (A) in the phenol resin to the total number of sites (B) in the phenol resin to which formaldehyde is added, to the total number of sites (C) in the phenol resin in which two molecules of the phenolic compounds are condensed with each other through a methylene group, is as follows: (A):(B):(C)=1:(0.85 to 1.0):(less than or equal to 0.05, in particular less than or equal to 0.02). The phenol resin is produced in a relatively short reaction time of not more than 15 minutes.
Patent DE-4032871-A1 (DE)
Inventor: ROESINGER ANDREAS
IPC: G11B7/126
Filed: 1990-10-17
Abstract: A circuit for scanning optical data substrates comprises a scanning device, a first control circuit to focus a scanning device light beam directed on the information plane of the data substrate and a second control circuit to guide the light beam along an information track. The first control circuit has a first control amplifier to which the focus error signal is taken and the second control circuit has a second control amplifier to which the track error signal is taken. The control amplifiers control actuators which mechanically adjust the scanning device. To compensate for control amplification temperature variations, there are adjusters connected via amplification regulators to temperature sensors in the first and second control circuits which alter the amplification dependently upon the temperature.
Patent DE-4033155-A1 (DE)
Title: Silicone based waterproofing and insulating agent for wood, etc. -  comprises soln. of methyl:alkoxy-poly or oligo-di:silyl-siloxane, with strong and long lasting action
Inventor: DATHE CHRISTIAN DR
IPC: B27K3/15
Filed: 1990-10-12
Abstract: Silicone-based waterproofing or insulating agents for (in)organic materials contain (1) 5-40 wt.% methylalkoxypoly(disilyl) siloxane (I) made by one step alkoxylation and hydrolysis of disilane-contg. distn. residues from methylchlorosilane synthesis and/or 5-40 wt.% methylalkoxyoligo(disilyl)siloxane (II) made by alkoxylation of (A), and (2) 60-95 wt.% at least one organic solvent. When (I) and (II) are both used, the wt. ratio is 2:100-100:2. (I) or (II) is present at 10-20 wt.%. (I) contains 1-5 wt.% alkoxy (esp. MeO or EtO) while (II) contains 6-20 wt.% alkoxy. USE/ADVANTAGE - The compsns. are esp. used to treat wood, mortar, concrete and brickwork to prevent/delay penetration by water (e.g. rising damp). They can be delivered by external application or injection;; are inexpensive and simply provide a high degree of protection (much better than know methylsilicone resin soln.) which lasts a long time.
Patent DE-4101244-A1 (DE)
Title: Nitrification of waste water - using immobilised microorganisms in stirred bio-reactor with floating support for microorganisms above water level
Inventor: VOLLMER GERD-RAINER DIPL CHEM
IPC: C02F3/12
Filed: 1991-01-17
Abstract: In environment-friendly nitrification of waste water with immobilised microorganisms in a bioreactor operating as a stirred vessel, 20-50% of the vol. of the bioreactor above the waste water-air/gas  mixt. is filled with floating supports for the microorganisms. The waste air enriched with harmful substances flows through this supports, ensuring adequate contact time between support and reaction mass. The concn. of dissolved O2 is 0.2-3.5 mg/l, and the waste water is later clarified by settling. USE/ADVANTAGE - The rate of nitrification and the efficiency are raised, thus reducing the vol. of the tank needed.  Nitrification and purification of waste air are in a closed system. Emission of NH3 is greatly reduced. The waste water may be of agricultural, municipal or industrial origin.
Patent DE-4101853-A1 (DE)
Title: Single or multi-use compressible packaging - comprises plastic, metal or similar body with circumferential folds forming constrictions allowing compression of package after use
Inventor: BERGER DIETRICH
IPC: B65D1/02
Filed: 1991-01-23
Abstract: A package for use once or several times is mfd. in plastic, metal or similar material and is designed to be compressed in size after use to reduce storage or transporting space. The package body (3) has circumferential folding lines (7) which form constrictions (6) along the package length and when pressure (10) is applied at one end, the package (3) folds, concertina fashion, into a much lower height. USE/ADVANTAGE - The packaging is suitable for use once, e.g. as a beer or lemonade can or can be used several times where it replaces rigid glass or plastic containers and can be reduced in size without expensive equipment.
Patent DE-4109907-A1 (DE)
Title: Building game for children - comprises bricks of same shape but two different sizes
Inventor: FINDEISEN NORBERT
IPC: A63H33/04
Filed: 1991-03-26
Abstract: The building game comprises bricks (1-23) engaging positively with each other. The bricks are of the same shape and two different sizes. Each brick can have a flat rectangular body with a protrusion at each end and to the same side. These form triangular teeth, with one flank at right angles to the body, and the other sloping and at the side furthest from the brick end. USE/ADVANTAGE - Building game with two sizes of bricks. Encourages really creative activity.
Patent DE-4112371-A1 (DE)
Title: Overload protector for measurement elements e.g. force or weighing cell - has spring packet between pressure piece and measurement element with bolt and nut applying bias force
Inventor: PFLAUM HERMANN DR ING
IPC: G01D3/08
Filed: 1991-04-16
Abstract: An overload protection arrangement for a measurement element acted upon by an external pressure piece contains a compressed spring packet (12) between the pressure piece (3) and measurement element (2). The measurement force acting on the pressure piece is normally less than the bias force of the spring packet which is less than the max. permissable force for the measurement element. The spring packet consists of at least one helical or plate spring (15) with a bolt (13) passed axially through it and clamped between a pressure plate (11) and a collar (14) on the bolt by a nut screwed onto the bolt. USE/ADVANTAGE - Measurement element is protected against damage by overload yet measurement forces are transferred without measurement errors.
Patent DE-4114254-A1 (DE)
Title: Scanning head for coordinate measuring appts. for scanning workpiece - has exchangeable scanning pin freely movable simultaneously in coordinate directions X and Y in guides for determining direction and size of deflection at workpiece
Inventor: GURNY WERNER H
IPC: G01B5/012
Filed: 1991-05-02
Abstract: The scanning pin (9) works in conjunction with displacement pick-ups, for determining the direction and the size of the deflection and is acted on by restoring forces for taking up the coordinate zero position. The guides in the X and Y coordinates are formed by slide elements. The slide elements (11,14) are arranged in corresp. recesses in discs, plates or similar, movable at 90 deg. to each other, which lie over each other in the Z coordinate. The slide elements work in conjunction with teh scanning pin mounting (18), and also a deflection mechanism is provided for the Z coordinate. The slide elements (11,14) in their end sections assigned to the X and Y coordinates movement direction are acted upon by gaseous or hydraulic pressure or by suction pressure. ADVANTAGE - Following deflection of scanning pin and corresp. return from workpiece to coordinate zero position is achieved at once, and in rest position is held reliably at end stop without further movement or vibration.
Patent DE-4122925-A1 (DE)
Title: Compact optical spectrometer with multiple LED source - has monochromator contg. integrated optical, acoustically controllable wavelength filter
Inventor: HINKOV VLADIMIR DR
IPC: G01J3/12
Filed: 1991-07-11
Abstract: The spectrometer has a light source to illuminate a material in a measurement specimen chamber, a monochromator and a detector arrangement. The monochromator consists of at least one integrated optical acoustically controllable wavelength filter (38). The light source contains light emitting diodes (33-37) covering several different spectral regions, coupled to wavelength filters via monomode optical fibres (11-15). Each wavelength filter includes an acoustic waveguide (56,57,67) respectively with an interdigital converter (53,54,55) and acoustic absorbers (58,59) to provide the required light waves. Polarisation filters (23,24,25) integrated on a LiNb03 substrate are placed at the signal output, behind optical lenses (20-22). The outputted light is incident upon a detector arrangement (26-29) after interacting with the material (5) under investigation. USE/ADVANTAGE - Measuring optical properties of liq., powder, oil, fat etc.. Enables rapid changes of wavelength to be achieved.
Patent DE-4131637-A1 (DE)
Title: Sealing cuff for pipe going through wall - has flexible seal covered with fabric except in area round pipe hole
Inventor: SCHNEIDER PETER
IPC: F16L5/10
Filed: 1991-09-23
Abstract: A sealing cuff (6) for sealing around a pipe (1) which passes through a wall (3) consists of an elastic material with at least one side covered by a fibrous or porous surface. The region surrounding the opening (7a) does not have this covering surface. The covering can be a non-woven fabric or alternatively a woven or knitted fabric. It can be vulcanised to the cuff (6) or attached by adhesives. It is at least 0.15 mm, pref. at least 0.2 mm thick. USE/ADVANTAGE - By keeping the active sealing area clear of mortar, the flexibility of the cuff is maintained and the performance of the seal is improved. (1/3)
Patent DE-4132425-A1 (DE)
Title: Glass bottle neck fault testing device - uses light reflection with lens across bottom end of test head containing light source and photosensors
Inventor: FISCHER KNUT DIPL PHYS
IPC: G01N21/90
Filed: 1991-09-28
Abstract: The fault testing device (1) has a housing (6) enclosing a test head (5), positioned above the glass or transparent plastics item (2) to be checked and incorporating a light source with a lamp (10) and a number of photosensors (15) for detecting reflected light. An optical lens (7) across the open bottom end of the test head (5) has a central bore (8) for passage of a light conductor (9) coupled to the lamp (10) at the light input end. The light reflected by flaws in the checked item (2) is focussed onto the photosensors (15) via the optical lens (7) and a respective condenser lens (14), with evaluation of the photosensor output signals. USE - For checking neck of glass or transparent plastics bottle.
Patent DE-4132612-A1 (DE)
Title: Sheet aligning system for rotary printing machine - is actuated by mechanism incorporating two sets of four-bar linkages.
Inventor: JENTZSCH ARNDT
IPC: B65H9/10
Filed: 1991-10-01
Abstract: The rotary printing machine has a mechanism to align the individual sheets before they pass through the printing cylinder. The mechanism first aligns the front edge of each sheet with a defined mark and then aligns the sheet laterally with a defined side mark. Finally the rear edge of the sheet is adjusted. The adjustment mechanism is operated by two sets of four-bar linkages (14.1,14.2) which are in turn actuated by a cam (5) and a shaft (6). USE/ADVANTAGE - Rotary printing machine. The sheets are correctly aligned with the printing cylinders.