baber/WOPTO huggingface dataset:
Patent DE-4020560-A1 (DE)
Title: Working-up of seat pickling liquor contg. metal salts and acids - preventing pollution with only small expenditure on energy and materials
Inventor: BRUECKEN VOLKER DIPL ING
IPC: C02F1/04
Filed: 1990-06-28
Abstract: A spent liquor used for surface treatment of rolled steel products and contg. HF, HNO3, and salts of Fe, Co, Ni etc is worked up and recycled. In this method a cyclic scheme of acid dialysis, membrane electrolysis and evapn. takes place. In the acid dialysis a vol. of spent liquor per unit ion exchange membrane surface area of 0.5-10 1/hr./m2 is used, whilst in the membrane electrolysis a cathode potential of -400 to -1000mVh is employed which corresponds to a cell voltage of 2.8 to 5.0V. In the electrolysis, the catholyte used is the free acid of the depleted spent liquor, the anolyte is up to 1% HF/HNO3 and the freely selected cathode potential is kept at a constant level above a reference electrode by a rectifier.
Patent DE-4024270-A1 (DE)
Title: Rotary piston IC engine - has two=stroke working during rotation of eccentric shaft
Inventor: OPEL FRITZ
IPC: F02B53/02
Filed: 1990-07-31
Abstract: The high compression, air-compressing IC engine, has a stationary, circular housing with a central eccentric shaft. The shaft carries a piston drum, and a linear double piston, and two working chambers for varying volume are formed during a rotation. The double piston (7) is held via slide faces (8') in the piston drum (9); via bearing s(6) on the eccentric (5); and via slide faces (8) in the piston, forming two working chambers (10, 11).  For a two-stroke process, the jacket (1) has a common inlet (15) for fresh air for both chambers, and an outlet (16) for the combusted gases. USE - Rotary air compressing IC engine.
Patent DE-4025264-A1 (DE)
Title: Aq. aluminium-flaking pigment coating agent - obtd. by mixing aq. thickener based on polyacrylic acid with aluminium flake contg. mixt., and thermo-curable polyurethane dispersion
Inventor: RASCH ULRIKE DIPL ING
IPC: C09D5/38
Filed: 1990-08-09
Abstract: Aq. flaking pigment-coating agent (I) suitable for the mfr. of a base coat is obtd, by (a) mixing an aq.  thickening dispersion based on polyacyclic acid (pH 8.5-10.5) which is diluted with water to a solid content of polyacrylic acid of 0.5-3 wt.%; (b) with a 25-40 wt.% flake-contg. mixt. of usual flaking pigment-paste contg. 55-80 wt.% flakes in a organic solvent which is immiscible with water, and an organic solvent which is misable with water.(a) and (b) are used in such ammts that the mixt. obtd. contains 6-15 wt.% Al flakes; (c) and by the mixing of  the resulting mixt. with an aq. thermocurable polyurethane dispersion. Thickening dispersion pref. has a pH of 9-9.5 and the solid content of polyacrylic acid in the dispersion is 1-2 wt.%. Al flaking pigment paste is pref.  suspended with an organic solvent diluted with water in such an amt. that the amt. of Al flakes in (b) is 30-38 wt.% and the solvent is selected from the gp.  consisting of 1-4C alkylalcohols. Polyurethane dispersions contain essentially only water as a liq.  phase. Liq. phase contains no more than 1.5 pref. 10 esp. 7 wt.% organic solvent. USE/ADVANTAGE - (I) is used in the mfr. of base coats for thermocurable multilayer coatings. (I) contains water as a liq.phase, exhibits a metallic effect and can be cured at temps. under 90 deg.C.
Patent DE-4025523-A1 (DE)
Inventor: MUNK WERNER GEORG
IPC: C08L7/02
Filed: 1990-08-11
Abstract: The invention relates essentially to biodegradable containers based on polysaccharide material which are coated on their surface and/or impregnated internally with rubber. The rubber is preferably used in the form of latex milk which is incorporated in the pulp or paste during manufacture of the containers or is applied to the finished containers. The containers can be used in place of conventional plastic containers and are suitable for disposal by biodegradation.
Patent DE-4028603-A1 (DE)
Title: Doppler radar sensor transmitting linear polarised signal in plane -  carries out polarisation separation of transmit and receive signal in aerial feed
Inventor: BOHEIM MANFRED DR
IPC: H01Q1/24
Filed: 1990-09-08
Abstract: The Doppler echo reflecting objects detected move in a single plane. The sensor transmits a linearly polarised signal, processing only the reflected echo component with orthogonal polarisation w.r.t. the transmitted signal. The polarisation plane of the transmitted signal is rotated in a specified coordinate system (X, Y, Z). The polarison separation of transmit and receive signals is integrated in the aerial feed system. Pref. with an aerial, or its feed system, with a dual mode horn, the latter is extended by an ortho-mode coupler, at one gate of which the transmit signal is fed in, while the received signal is tapped at the other gate. ADVANTAGE - Simple design for movable targets.
Patent DE-4028982-A1 (DE)
Title: High speed encryption of data on work station -  involves encryption on output and decryption on input during data exchanges with storage media using little CPU processing power
Inventor: SIEDENTOP DIETRICH
IPC: G06F1/00
Filed: 1990-09-13
Abstract: The method of expanding the charcteristics of workstations by adding the capability to encode and decode data to be stored on storage media such as fixed discs, floppy discs and tape streamers involves encoding the output data and decoding the input data during data communications with the storage media. The processing power of the workstation`s CPU is only used indirectly and to a small extent for data encryption. ADVANTAGE - Enables programs in workstation to run faster and higher data exchange rates to be achieved.
Patent DE-4032442-A1 (DE)
Title: Rotary machine for printing proof copies - can also print numbers of sheets in succession without changing printing mechanism
Inventor: JENTZSCH ARNDT DIPL ING
IPC: B41F21/10
Filed: 1990-10-12
Abstract: The rotary printing machine for printing on individual sheets is so designed that it can print single proof copies or print numbers of copies in succession. The machine has two sets of printing mechanisms (1,2) each of which consists of a plate cylinder (6), a blanket cylinder (7) and a printing cylinder (8) with dia. ratios of 1:1:2 and with a transfer cylinder (9) mounted between the two sets. The transfer cylinder has a dia which is equal to three times the dia. of the plate cylinder (6) or blanket cylinder (7). The line (13) joining the axis of a printing cylinder (8) with the axis of the transfer cylinder (9) is inclined at an angle (alpha) to the horizontal plane (14). The angle (alpha) is equal to 18 deg or to 54 deg. USE/ADVANTAGE - Printing machine for printing proof copies or numbers of copies in succession without changing the printing mechanism and can accept paper of any thickness.
Patent DE-4033696-A1 (DE)
Title: Wind-powered electricity generator with profiled rotor blades - has two pole wheels rotated in opposite directions on opposite sides of stator
Inventor: KORDELLE RAINER
IPC: F03D9/25
Filed: 1990-10-15
Abstract: The rotor blades (2-5) are rotated relative to one another. Attached pole wheels (7, 8) are positioned on either side of a stator (6) and rotate in opposite directions relative to a central mast (1). The pole wheels (7, 8) and the stator (6) are each formed in at least two parts. The stator stampings packet comprises iron balls of uniform or differing dia. which are insulated from one another. USE - For supplying electrical energy for current network.
Patent DE-4036064-A1 (DE)
Inventor: ECKERT ALFRED DIPL ING
IPC: B60G17/018
Filed: 1990-11-13
Abstract: The semi-active suspension-control system proposed contains, as sensors (1) to obtain data for damping-force control, only body-mounted acceleration sensors (S1 to S3). The output signals of these sensors are processed through a filter (3) whose transmission characteristics approximate linearly to those of a discrete Kalman filter, the signals being concentrated in the frequency range between the natural frequency of the body and that of the wheels.
Patent DE-4104976-A1 (DE)
Title: Clamping tailstock to grinding machine table - with steel cable passing through open channel tensioned between T=slot and nut at front of tailstock
Inventor: KEEFER HERMANN
IPC: B23Q1/00
Filed: 1991-02-19
Abstract: The tailstock (2), which must be firmly clamped against the top and front locating faes of the grinding machine table (1), rests over a T-slot (5) running the length of the table. A block (6) fits into the T-slot and can be slid to any position along the table. Fixed to the block at an angle (27) to the table top is a flexible steel cable (16) which seats in an open-sided channel (17) in the tailstock. At the other end the cable is secured to a threaded stud (29) having a square section (22) for part of its length to prevent rotation. The cable is tensioned and the tailstocks clamped by tightening nut (31). USE/ADVANTAGE - Can be used to clamp a variety of machine parts. Simple design permitting convenient and accessible clamping.
Patent DE-4108722-A1 (DE)
Title: Conveyor feed for mfg. particle board - comprises ejection conveyor with pin-and-brush rollers arranged transversely above, fed by rotatable pick=up conveyor
Inventor: SAIRANEN PERTTI
IPC: B27N3/14
Filed: 1991-03-18
Abstract: The device consists of an ejection covneyor (3) and pin- and brush-rollers (4) arranged transversely above it for uniform distribution of the chip material moving on the ejector conveyor. The chips are led to the eject conveyor by a pickup conveyor (1), with staggered distributor elements, rotatable about the vertical axis, to ensure uniform distribution of the chips on the conveyor. The mixing arms can have comb-shaped elements or distributor plates. USE/ADVANTAGE - Ensures effective feeding of the chips in a spreading device for particle-board manufacture.
Patent DE-4117991-A1 (DE)
Title: Loading conveyor with clothing on coat hangers - involves conveyor with sequence of hanging sectors and crossways to movement direction is gripper securing coat hanger hooks
Inventor: HEINOLD HANS
IPC: B65G47/61
Filed: 1991-06-03
Abstract: The gripper (24) takes hold of the hook (12) of a coat hanger (11) on which an article of clothing is located and which is fed forward by a slide rod (25). A bracing device (39) displaceably located between two coat hangers (11) fitted in the distance of a free hanging section. The gripper, the bracing device and the conveyor are controlled by a control unit in such a way that the gripper (24) with the secured coat hanger is insertable between the two predetermined adjacent coat hangers (11) hanging on the conveyor, where the secured hanger hook is released. During this operation, the bracing device holds the two coat hangers on the conveyor apart. The gripper consists of two clamp jaws (28), the one of which is pivotable by a cylinder (22) around an axis common to both jaws. The bracing device (39) has two jaws which are pivotable by a cylinder (41) around an axis common to both bracing jaws. USE/ADVANTAGE - In the clothing trade, to load articles of clothing fitted on coat hangers as required on to a conveyor in the desired sequence.
Patent DE-4118857-A1 (DE)
Inventor: MADER HEINZ BERNHARD
IPC: G21F5/00
Filed: 1991-06-07
Abstract: The proposal is for a container system (1) for the safe transport of hazardous and/or delicate items consisting of several individual containers (2, 4, 6). The inner container (2) holds the items directly and consists of stainless steel. The intermediate (4) and outer (6) containers are designed in such a way that they form self-contained transport containers, whereby the inner container can be directly fitted in the intermediate container. The intermediate and outer containers are of substantially the same construction, with the outer container preferably designed for the means of transport concerned, e.g. ship, aircraft, etc.
Patent DE-4124055-A1 (DE)
Title: High pressure metal halogen discharge lamp - has glass envelope with wall thickness defined by regulation in terms of lamp power
Inventor: GOELLING HANS-WERNER
IPC: H01J61/30
Filed: 1991-07-19
Abstract: The discharge lamp has a lamp envelope (2) which is rotationally symmetrical and which is fitted to a quartz glass lamp shaft (3,4) at each end, receiving an electrode (5,6) via a gas-tight sealing foil (7,8). The lamp envelope (2) is filled with one or more metal halogenides and has an optimal wall thickness d, defined by d=1.5+0.1 cube root (P), where P is the power of the lamp in Watts. Pref. the difference in the actual wall thickness from the optimum wall thickness is less than plus or minus 0.2 times the optimal wall thickness, d. ADVANTAGE - Optimum lamp operating characteristics and compact size.
Patent DE-4128762-A1 (DE)
Title: Sequential flushing of several urinals identified in use - applying logic operating on encoded identification signals to ensure successive flushing operations performed in same sequence
Inventor: WILSON JOHN R
IPC: E03D5/10
Filed: 1991-08-29
Abstract: Each connection box (10) associated with an individual urinal features a signal wire (12) from an infrared proximity sensor to a monostable (18), a return wire (14) from a decoder (30) of the electrical identification code (20), and a common earth wire (16). After use of any urinal its identification signal is stored in a first-in first-out register (22). Flushing commands are produced at uniform intervals in the sequence of identification signal storage. ADVANTAGE - Waste of water is avoided by preventing flushing of any urinal while in use, or of more than one at a time.
Patent DE-4129696-A1 (DE)
Title: Vehicle engine oil level limit measuring appts. - has light emitting diode and phototransistor in semi-open tube whereby diode is also used for system functional monitoring
Inventor: GISTL EGMONT DR MED
IPC: G01F23/04
Filed: 1991-09-06
Abstract: The appts. for measuring the limit levels of liquids has a measurement sensor consisting of a combination of a light emitting diode (L) and phototransistor (F). An electrical circuit is arranged so that a light emitting diode indicates when a limit level is reached and also enables functional monitoring of the system. The measurement sensor is pref. mounted in a semi-open tube. ADVANTAGE - Economically priced for installation in motor vehicles, e.g. by layman.
Patent DE-4131921-A1 (DE)
Inventor: SPIESS WOLFRAM
IPC: C07F11/00
Filed: 1991-09-25
Abstract: Novel tungsten hexa(dialkyldithiocarbamates) of the general formula I    <IMAGE>  I  in which R and R1 can be identical or different, branched or straight-chain, saturated or unsaturated alkyl radicals having 1-18 carbon atoms are prepared by a process in which 6 mols of an alkali metal dialkyldithiocarbamate of the general formula II    <IMAGE>  II  in which R and R1 are as signified above and Me can be sodium, potassium or ammonium, are reacted with 1 mol of tungsten hexachloride in a solvent which is inert with respect to the reaction. The alkali metal chloride or ammonium chloride formed is separated off and the tungsten hexa(dialkyldithiocarbamate) is isolated. The tungsten hexa(dialkyldithiocarbamates) of the invention can be used as additives for prolonging the life of hydraulic oils or permanent gear lubrication oils.
Patent DE-4137313-A1 (DE)
Title: Pre=built body shower - consists of vertical tube with connection sockets for side shower heads, for connection to existing hand shower fitting
Inventor: KARL JUERGEN
IPC: A47K3/28
Filed: 1991-11-13
Abstract: The shower consists of a thin-walled tube with plugs at each end, two or more connection sockets at the front, for side shower heads, and a side water supply connection. Water supply is via a hose, using the existing connection for the hand shower. This is connected to a control valve, which is screwed to the water intake socket. The valve controls water feed to hand or body shower. The tube is fixed to the wall by holders at top and bottom and may be extended at the top, to carry a holder for a hand shower. It is chromed or painted with sanitary colours. ADVANTAGE - Simple and quick installation without expensive alterations to bathroom.
Patent DE-4140936-A1 (DE)
Title: Bolt with necked-down portion - has grooves running longitudinally through shaft and thread and has reduced cross=sectional area at shaft.
Inventor: FEZER WOLFGANG
IPC: F16B35/04
Filed: 1991-12-12
Abstract: A necked-down bolt comprises a threaded section and a necked down shaft, whose load carrying cross-sectional surface is less than that of the threaded area. The cross-sectional area reduction includes reduction of several longitudinal or spiral grooves extending over the shaft and thread areas. The bottoms of the grooves are at a constant distance from the centreline and the top portions of the grooves are cut away at the neck. An odd number of grooves is symmetrically arranged around the circumference, so that each groove lies diametrically opposite a non-grooved area. USE/ADVANTAGE - Cost-effective mfr. of grooved bolt with necked-down portion.
Patent DE-4143294-A1 (DE)
Title: Underrun protection frame for goods vehicle - comprises detachable protective board unit, using quick release fasteners, screwed to vertical supports on vehicle body
IPC: B60R19/56
Filed: 1991-12-05
Abstract: The protection frame has protective boards (3) attached to at least two vertical supports (5) bolted on to crossbeams (6) or a longitudinal member (4). The supports have a series of through holes on each side allowing the boards, which are screwed to stays, to be fitted using quick release fasteners. The fasteners are fitted in an open U-shaped support by a tensioning bolt through a slot. There is an eyebolt, which is tightened from behind, is located in the middle of the tensioning. ADVANTAGE - Effective side protection system of a goods vehicle and its trailer. Gives ready access to spare tyres, fuel tanks and storage boxes situated below the vehicle body.
Patent DE-4204812-A1 (DE)
Title: Ball arrest device for road vehicle door fitting - has guide bush for slide guiding the arresting means in which screw pressure spring is coaxially arranged
Inventor: SCHRADER JUERGEN DIPL ING
IPC: E05C17/28
Filed: 1992-02-18
Abstract: The lateral outward bending of the screw pressure spring is limited by the guide bush and the bush (5) in the length area of the greatest outward bending of the screw pressure spring (8) has a radial, elastic, pliable guide and support area. The guide and support area is formed by a support ring (12) which encloses with virtual lack of clearance the winding of the screw pressure spring (8). The guide bush (5) is of bendable elastic material, and a narrowed longitudinal section of it itself acts as support ring (12). USE/ADVANTAGE - A road vehicle door fitting ball arrest device with which the occurrence of crack noises via the spring windings is adequately prevented.
Patent DE-4205083-A1 (DE)
Title: Hard plastic cover on loading platform walls on lorries - is applied by hand to edges of wall, to protect wheel arches, lights, etc.
Inventor: SCHUBERT JOACHIM
IPC: B60R13/04
Filed: 1992-02-17
Abstract: The hard plastic coating is for the edges of walls on loading platforms of small lorries and heavy goods vehicles. It prevents damage to wheel arches and rear lights, when the walls are let down. The hard plastic has small internal knobs, or air honeycombs. It can be replaced, and is recyclable. The plastic is black, rounded, and is placed by hand, and never screwed down.
Patent DE-4211213-A1 (DE)
Title: Regulating optical disk scanning during start=up phase of drive - using radial and tangential servo regulators responding to eliminate error between angles of optical scanner and that of disc
Inventor: KUEHN HANS-ROBERT
IPC: G11B7/095
Filed: 1992-04-03
Abstract: The optical disc system has a pick-up (A) coupled to, and controlled by, a processor (P) connected to a focus regulating circuit (FS), a radial servo regulator (KSX), a tangential servo regulator (KSY) and a tracking control servo (TS). Each stage connects to the pick-up unit via controlled switches (S1-S4). During start-up the focus unit responds to identify the correct position. At this point the tracking error signal is read and process to establish successive values for the tilt servo units (KSX,KSY) to eliminate any angular variation. USE/ADVANTAGE - Corrects for optical angular errors esp. in start-up phase where no data or modulation signals for evaluation are yet available. Can use already existing appts.
Patent DE-4213883-A1 (DE)
Title: Driver circuit for time signal receiver with computer interface - resets internal clock to official time with receiver data rate adjusted to between 1 and 8 times reciprocal of pulse duration
Inventor: GUDE MICHAEL DR
IPC: G06F1/14
Filed: 1992-04-28
Abstract: The receiver (3) drawing only about 0.5 mA can be supplied via the Data Set Ready and Ready To Send output lines of the interface (1) with a voltage of plus or minus 10 to 12 V which is reduced to the appropriate 1.5 V by a suitable regulator. A stabilised voltage is delivered by a pulse length regulator (2) with good interference suppression. A standard interface-level signal is produced by a level convertor (4) from the receiver output pulse which is displayed by an inverse-parallel LED combination (5). USE/ADVANTAGE - Integrated DCF77 receiver can be coupled at min. cost to s standard RS232 or V24 interface.
Patent DE-4214699-A1 (DE)
Title: Wall hook for pictures or clocks - has long point and further underneath points inserted between plaster and wall covering and then into plaster
Inventor: SCHIEBEN JUN ROLF HANS
IPC: F16B15/06
Filed: 1992-05-02
Abstract: The wall hook (1) has a long pointed part (2) which is pushed upwards between the wall covering and the plaster. The underneath points are pressed by the extra load of, for instance, a picture hung on it, through the wall covering into the plaster. The long end then serves as a lever and distributes the load to all sides. USE/ADVANTAGE - When objects such as clocks, pictures, wall units, are wall hung, the hook prevents holes in the plaster and walls, and eliminates subsequent infilling.
Patent DE-4218365-A1 (DE)
Title: Mfg. shock absorbing and thermally insulated package - by bending filling stalks in meandering shape for form interconnected stalk sections
Inventor: GUCKERT UTE
IPC: B65D81/05
Filed: 1992-06-09
Abstract: The package or insulating cushion is mfd. from natural stalk (3-6), such as straw, hay, or reed and a strong, tear-resistant hose, cushion, or bag material. The original length of the stalk material is bent into a meander shape so that the individual stalks consist of connected sections. The sections are sepd. by the bend points (7-9), which are used for interconnecting the stalks to form a relatively solid layer. The bent stalks are inserted into the hose etc. material, whose open ends are then closed. USE/ADVANTAGE - Uniform thickness of insulating material, and non-polluting disposal.
Patent DE-4219858-A1 (DE)
Title: Thread cutter for protection of coin operated machines - is in form of heated wire that is activated to cut through thread and release coin into magazine
Inventor: MUELLER ERICH
IPC: G07F1/04
Filed: 1992-06-17
Abstract: A coin operated machine has an entry slot that directs the coins through a station (10) where any coin (6b) connected to a thread (30) can be handled. The coin is directed in such a way that the thread loops over a lever (14). At the point the coin is retained against a controlled stop (9a) and the thread engages a heating wire (11). The lever is displaced to operate a limit switch (13) and this connects the heating wire to an electrical power supply (Uo). The heating effect cuts the thread and the coin is allowed to fall into the magazine. USE/ADVANTAGE - Prevents repeated use by coin on end of thread.