baber/WOPTO huggingface dataset:
Patent DE-4129754-A1 (DE)
Inventor: DOLLE LOTHAR
IPC: B03B9/06
Filed: 1991-09-04
Abstract: The invention relates to a method for the computer-controlled recovery of pure fractions of plastics from mixtures comprising to a large extent plastics parts, in particular packaging materials. The following process steps are provided for this: Coarse screening, fine screening, separation of film from the medium and coarse fraction, magnetic separation from the medium and fine fraction, separation of non-ferrous metals from the medium and fine fraction, ballistic screening of the medium fraction, isolation of the medium fraction, registering the size of the parts in the medium fraction by optoelectrical means, spectral analysis of the parts and computer-controlled discharge of the parts of the same or different grade. <IMAGE>
Patent DE-4131291-A1 (DE)
Title: Fuel-fired heater for inlet manifold airflow - has single fuel feed to single control valve and distribution to separate heaters in inlet manifold branches.
Inventor: KLAK ROLAND
IPC: F02N19/08
Filed: 1991-09-20
Abstract: The heater has a cylindrical housing (4) fitted into the inlet manifold pipe (1) and is secured by a mounting plate (10) on the outside of the manifold. The plate also locates a glow plug (9) ignitor and a jet (12) for spraying fuel onto the glow plug. A single control valve (14) fitted to one of the mounting plates is fed by a single fuel pipe (16). Distribution ducts feed fuel to the other heaters. The control valve housing has a duct (17) through its length. One end locates the main control valve and the other end connects to the fuel distribution lines. The injector jet also connects to the through duct. ADVANTAGE - Efficient prewarming of all of intake air; cost saving construction using single valve and single main fuel feed.
Patent DE-4133294-A1 (DE)
Title: Printing plates for electrophotographic printing plates - have light sensitive layer contg. photoconducting 3,4,9,10-perylene:tetra:carboxyl:di:anhydride in particulate form
Inventor: AKAO AKIO
IPC: C09B3/14
Filed: 1991-10-08
Abstract: The printing plates comprise a substrate with at least one conducting layer covered by a light sensitive layer, comprising a photoconductive substance in an alkali soluble resin. At least one photoconducting substance 3,4,9,10-perylene tetra-carboxyldianhydride is in an undefined particulate form. Pref. the light sensitive layer additionally comprises an electron donating substance. The alkali soluble resin is chosen from a copolymer of acrylic or methacrylic acid with at least one methacrylate, a copolymer of at least one vinyl ester with an unsatd. carboxylic acid, a copolymer of styrene with maleic acid or maleic acid anhydride, a novolak-phenol resin obtd. by condensn. of at least one phenol or substd. phenol with an aldehyde under acidic conditions, and their combination. USE/ADVANTAGE - The electrophotographic printing plates exhibit high sensitivity and enhanced image quality and are free from staining or discolouration.
Patent DE-4140900-A1 (DE)
Inventor: ADEL JOERG DR
IPC: C23C16/40
Filed: 1991-12-12
Abstract: Described are particles (I) suitable for use as carrier particles in electrophotographic processes and made up of: a) a magnetic core and b) an envelope consisting of aluminium oxide, chromium oxide, molybdenum oxide, tungsten oxide, silicon oxide, tin oxide or zirconium oxide or a mixture of these oxides. Also described are particles (II) made up of: a) a magnetic core and b) an envelope of titanium oxide and produced by decomposing titanium tetraalcoholates in the gas phase by means of water and/or oxygen in the presence of the moving cores. The invention also concerns the manufacture of the particles and their use in two-component developers for electrophotographic processes.
Patent DE-4206852-A1 (DE)
Title: Note holes for recorder - has rings of elastic material fitted around their edges on outside surface of recorder tube
Inventor: THEVIS PAUL
IPC: G10D7/02
Filed: 1992-03-05
Abstract: A row of note holes (3) extends along the tube. Each note hole is surrounded, on the outside surface of the tube, by a ring (6) of soft elastic material or the recorder tube may be covered with a layer of soft elastic material. The ring around the hole or the tube cover may be made from a foamed plastics material which may be marked with particular colours. The ring or the tube cover may be covered by a sheet of plastics film. USE/ADVANTAGE - For making it easier for children to completely close the holes. Enables playing by persons with relatively small fingers.
Patent DE-4207417-A1 (DE)
Title: TV lounge lighting control device - uses smoothed and compared chrominance signal components for adjustment of dimmers applied to corresp. primary coloured lamps
Inventor: AMSBECK KLEMENS
IPC: H05B39/04
Filed: 1992-03-09
Abstract: The room lighting unit (2) incorporates red, green and blue (primary colours) lamps (22-24) whose brightness is adjusted individually by dimmers (25-27) in the mains supply circuit (28, 29). The dimmers are controlled by signals on a transmission line (20) from a circuit (1) in which the corresp. chrominance signals (11-13) are individually smoothed (14-16) and converted (17-19) by comparison with a mains-frequency sawtooth waveform. An additional element in the control circuit allows manual settings of the min. and max. brightness. ADVANTAGE - The brightness and colour of the room lighting can be varied in sympathy with the luminance and chrominance of the displayed picture for an enhanced impression.
Patent DE-4207847-A1 (DE)
Title: Candle with continuous burning wick - mounted in compression spring-biased holder plate on molten wax pool
Inventor: SCHIRNEKER HANS-LUDWIG
IPC: C11C5/00
Filed: 1992-03-12
Abstract: A candle (1) consists of one or more candle bodies (10) and a top-mounted sinking head (2) which has a low thermal conductivity cylinder (23), sealing around the candle body (10), and a horizontal intermediate wall (22) with wax passage openings (25). The head carries a thermally conductive cylinder (3) extending upwardly above and sealing against the other cylinder (23) to form, above the intermediate wall (22), an upper chamber (20) which, during use, is partially filled with molten wax (10A) in which one or more constantly burning wicks (4) are partially immersed. (i) the wick (4) is held in a holder plate (40) which is free at its sides and which is supported at its underside against the intermediate wall (22) by a compression spring (41); and (ii) the spring (41) has spring characteristics selected so that, in a lower position (SS), the spring supports the wick (4) and the holder plate (40) and exactly counterbalances the surface tension of the molten wax (10A), acting on the holder plate (40) but, when loaded only by the wick and the holder plate, the spring holds the wick and holder plate in a free position above the thermally conductive cylinder. ADVANTAGE - The candle has a simplified structure, and a long life and burns reliably and safely.
Patent DE-4209873-A1 (DE)
Title: Positive and negative photocopy prodn. - by exposure to change adhesion between light heat transformation coat and copying coat and image transfer
Inventor: TAKAHASHI YONOSUKE
IPC: G03F7/34
Filed: 1992-03-26
Abstract: Copying process involves selective exposure of light-sensitive material (I) having a film base (II), a light-heat transformation coat (III) and a copying coat (IV) to change the adhesion between (III) and (IV) in the exposed areas and image transfer to give both positive and negative copies. USE/ADVANTAGE - The process is useful for producing copies with high resolution, which are useful as masking films (e.g. lith films) or colour sepn. in printing. Development can be carried out in daylight without using a developer soln. In an example, coating solns. contained (VI-A) 4.5 (wt.) pts. C black, 20 pts. resorcinol, 100 pts. methoxypropyl acetate (VIII), 200 pts. MEK and 0.1 pt. fluorinated surfactant (IX), (VII-A) 1.0 pts. polyester resin, 67 pts. MEK, 3 pts. (VIII) and 0.1 pt. (IX) and (IV-A) 4.5 pts. cyan pigment, 300 pts. 1-methoxy-2-propanol and 0.1 pts. (IX). PET film was spin coated with (VI-A) and dried at 120 deg.C to give a coating with an optical density of 0.8 which adhered firmly to the PET film. This was coated with the other solns. and dried at 100 deg.C to give a micron (VII-A) and a 0.6 micron (IV-A) coating. The composite film was exposed through a coloured mask with a high power Xe flash lamp (pulse half width 3 ms., distance 10 cm., 400-2400 W variable output) and developed by laminating with a (VA) (roll temp. 70 deg.C, speed 900 mm/min.) and stripping at room temp. At an output power of 1600 W, a negative cyan image with clear contrast and resolution of 40 micron line width was produced on the PET film base and positive cyan image with clear contrast on (VA).
Patent DE-4212209-A1 (DE)
Title: Waterproof garment - has slide fastener with teeth sewn in with thermoplastic sealing strips
Inventor: MEIER REINHARD
IPC: B29C65/10
Filed: 1992-04-10
Abstract: Waterproof clothing with a slide fastener has the necessary teeth held on suitable opposing sections, which are sewn beneath the overlapping face of the garment. The fastener sections are extended and stitched to the garment beneath waterproof seals. The slide fasteners (1) pref. has teeth (3) on two opposing (2A, 2B) carrier sections (7), which have a greater breadth (7a) than usual, being at least 15 to 20 mm wide. They are stitched (13) to the overlap of the garment (1) with an intermediary sealing strip of waterproof material (8, 9), such as polyvinyl chloride or polyurethane. This consists of a layer (9) of adhesive thermoplastic attached to a layer of polyurethane (8), and which may be more than single thickness. The front loverlap (4) can have a self adhesive waterproof strip (10) on the inside. This is applied with thermoplastic as adhesive. USE - To close the garment by a slide fastener and to have overlapping which does not allow any rain water to seep through the stitching.
Patent DE-4216427-A1 (DE)
Title: Separation of root crops, esp. sugar beet, from soil - by separating whole tubers in first screen, larger fragments in second screen and small fragments in final band screen using screens with tines
Inventor: BUETFERING ANTONIUS
IPC: B07B1/15
Filed: 1992-05-18
Abstract: Process for separating soil from root crops consists of the following steps: a) whole tubers (6) are separated from the crop/soil mixture (29) in a first separation zone, b) the remaining material (8) passes to a second separation zone (3) in which relatively large tuber fragments (11) are separated, and c) the residual material (14) passes to a third separation zone (4) in which the remaining small tuber fragments (23) and earth (25) are separated. Also claimed is a device for carrying out the procedure with:  a) a first stage having a collection conveyor (5) for the whole tubers and a conveyor (7) for the remaining mixture, b) a second stage having a collection conveyor (12) for the larger tuber fragments and a conveyor (13) for the remaining mixture, and c) a third stage with conveyors (22,24) for the separated smaller fragments and earth. USE/ADVANTAGE - Especially for cleaning sugar beet and recovering beet from mixtures of beet and soil. Fragments of tubers are recovered as well as whole tubers.
Patent DE-4219109-A1 (DE)
Title: Max. compression of large rectangular stem-crop bales - involves exerting pressure in turn on different sections of baling passage
Inventor: BAHLMANN HANS-HERMANN
IPC: A01F15/04
Filed: 1992-06-11
Abstract: Rectangular large-section bales of stem-crops are compressed to the max. degree. The cross-section of the baling passage is divided into sections, on which pressure is exerted in turn, and these sections can consist of central and peripheral portions of the same surface area. Pressure can be supplied by separate drive mechanisms. The pressure can be transmitted via the crop to a supporting piston. On the latter there can be a central bar exerting pressure and sliding in the lengthwise direction of the bale. USE/ADVANTAGE - Compression equipment for large rectangular stem-crop bales generates permanent pressure inside bales.
Patent DE-4220470-A1 (DE)
Inventor: MARBACH KUNO
IPC: F24D19/10
Filed: 1992-06-23
Abstract: In the method according to the invention for controlling a circulation pump of a heating system, the circulation pump is switched on for a specific time (tE) periodically during the lowering period. When the pump is running, the temperature characteristic is determined by means of a temperature sensor arranged in the heating circuit, and the off period (tpw) until the circulation pump is next switched on is determined using the aforementioned temperature characteristic. In this case, a minimum value (Tmin) occurring when the pump is in operation can be taken into account, as can also a value (TE) which can be measured at the end of an on period of the circulation pump. If the temperature in the heating system undershoots a threshold value (TS3), the burner is switched on. This method guarantees that the heating system is reliably protected against frost without the need for a sensor for the outside temperature. <IMAGE>
Patent DE-4221478-A1 (DE)
Title: Soldering nozzle for wave soldering of flat circuitry components - has central opening for producing wave with ring groove for holding solder bath
Inventor: BURGER RUDOLF
IPC: B23K1/08
Filed: 1992-06-30
Abstract: Appts. for soldering individual or groups of solder points on flat circuitry components comprises a solder nozzle (1) which produces a solder wave (5). The nozzle is essentially cylindrical with a central bore (11) whose diameter determines the size of the wave. The top of the nozzle has a ring groove (12) which retains solder to form a solder bath (6). The ring groove (12) may be rectangular or semi-round in cross section. The parts to the soldered are moved by a handling unit through the wave and held there for a predetermined time before being rapidly moved sideways and/or slightly upwards out of the wave. ADVANTAGE - The solder wave can be adapted to differently sized connection legs and pad on the component (2) which is to be soldered to the conductor plate. There is no need to bend the connection legs.
Patent DE-4223761-A1 (DE)
Title: Bitumen roofing course with synthetic fibre mat - is covered with polypropylene@ fibre mat contg. elemental copper@ to prevent plant roots from growing
Inventor: BAUDER GERHARD
IPC: E04D11/00
Filed: 1992-07-18
Abstract: A bitumen roofing course is equipped with a synthetic fibre mat applied on the outside. The mat (3) incorporates elemental copper, which can be in the form of metallic threads embedded in the mat. Alternatively, the mat (3) is impregnated with a liq. contg. metallic copper. The synthetic fibre mat (3) consists of polypropylene with a surface wt. of 8-50 g/m2. ADVANTAGE - The roofing prevents plant roots from growing into the course, and other damage, without the need to insert copper foil into the bitumen course.
Patent DE-4223815-A1 (DE)
Title: Magnetic series drive for contactless transmission of torque - has arrangement of driving and driven shafts mutually aligned with at least one wheel on each shaft having  permanent magnets around its circumference
Inventor: SCHUESLER GERD
IPC: H02K49/10
Filed: 1992-07-20
Abstract: Circular magnetic flux conducting elements (3), orientated axially, are fitted at the wheels (1, 2). The ends of the flux conducting elements cover the respective driving and driven wheels. Some of the flux conducting elements are displaced in the direction of rotation. The number of the permanent magnetic poles of the individual wheels (1, 2) differ from each other. One wheel (1, 2) at least is arranged on each shaft. Either permanent magnets (6) or a gear tooth system are arranged on a wheel circumference. ADVANTAGE - Permits transmission of large torques at high efficiency and can be produced with low mfg. cost.
Patent DE-4224759-A1 (DE)
Inventor: ADLER HELLMUT DIPL ING
IPC: F16H7/08
Filed: 1992-07-27
Abstract: The invention relates to a tensioning system for a belt or chain drive. Tensioners are known in which there are plastic friction bushes to damp oscillations where the coefficient of friction is adversely affected by temperature effects. It is the purpose of the invention to provide a tensioning system in which the friction coating retains a virtually constant frictional torque throughout its useful life. To this end, according to the invention there is a basic component (2) in which against a base (5) in the shape of a circular disc bears a friction coating (18) on which is supported a friction disc (10) which is secured against rotation by means of a shaft (7), to the tensioner (9) producing the oscillating movement.
Patent DE-4225425-A1 (DE)
Inventor: BENEDICENTI CARLO
IPC: D01D5/40
Filed: 1992-07-31
Abstract: A starch pulp, particularly advantageous for use in the production of paper and cardboard, is produced by preparing an aqueous starch suspension (at 1) with a concentration jet cooking of between 5 and 40% by weight, jet cooking (at 4) at a temperature of between 90 and 180 DEG C, injecting (at 7) the suspension at a temperature of between 20 and 100 DEG C into a primary flux of a coagulating agent with the ratio of the speed of the primary flux and the starch being greater than 1:30, and by subjecting the pulp to maturing (at 8) in its own mother liquors for a period of 1 to 4 hours at a temperature of between 20 and 40 DEG C. The coagulating agent is a solution of a salt such as ammonium sulphate. The resulting pulp comprises starch flakes which can be mixed with cellulose fibre for making paper or cardboard. The starch may be naturally-occurring types. <IMAGE>
Patent DE-4226759-A1 (DE)
Title: Loose leaf document file - incorporates transparent front and stiffened cardboard rear side
Inventor: SCHABER ERICH
IPC: B42F9/00
Filed: 1992-08-13
Abstract: The loose leaf file (a,b,b1) is designed to hold a block (c) of individual documents or leaves of paper. Each of the individual leaves are inserted in the loose leaf document file which has a transparent front side, and a stiffened cardboard rear side, where they are clipped together. Over the clipped side is inserted a plastics clamping strip (a) which is also adapted for covering the clipping. USE/ADVANTAGE - No unintentional loosening of individual leaves in the document file, but the construction of the file allows damage-free leaf release.
Patent DE-4230920-A1 (DE)
Title: Paper-making drying cylinder - has support bearing at journal for steam and syphon tube and steam head to prevent bending and distortion
IPC: F26B13/18
Filed: 1992-09-16
Abstract: The rotating drum with a closed mantle with a heating medium esp. hot steam passes in through a hollow journal, has a support bearing (20) subjected to pressure and/or tensile loading at the steam tube (10) and/or at the syphon rising tube (12) and/or at the steam head. It provides supporting forces at the inner wall of the drying cylinder in relation to the hollow cylinder body. ADVANTAGE - The assembly prevents bending and distortion of the drum seating, to maintain the syphon mouthpiece against the cylinder wall to take off the condensation.
Patent DE-4235570-A1 (DE)
Title: Motor vehicle with chassis frame and front and rear axles connected to frame - has front and rear wheels respectively connected to front and rear axles and support chassis frame related to ground and spring units are fitted between axles and frame
Inventor: SPIES ERICH
IPC: F16H59/44
Filed: 1992-10-22
Abstract: A gearbox (15) connects the drive engine (14) with one axle (rear axle 4), which is provided with a gear change unit (18). An axle load detection unit (pressure sensor 23, 24, spring displacement sensor 39, 40) is respectively assigned to the front and rear axles (3, 4). They respectively transmit an axle load signal dependent on the axle load. A vehicle standstill detection unit gives a standstill signal if the vehicle is at a standstill. The axle load signals and the standstill signal are supplied to a control unit (29). With the supply of a standstill signal and at least one axle load signal, which exceeds a specified axle load, a gear limiting signal is given. This signal is transmitted to a high gear blocking unit. ADVANTAGE - With exceeding of specified axle loading at one axle only, forced limitation of max. vehicle speed occurs.
Patent DE-4239488-A1 (DE)
Title: Submerged electric pump for fuel tank supplying combustion engine - has pockets open at edges in both faces of pumping chamber assisting restoration of turbine wheel to untilted position
Inventor: HUFNAGEL KLAUS-DIETER DIPL ING
IPC: F04D5/00
Filed: 1992-11-25
Abstract: The pump has a disc-shaped turbine wheel (26) rotated by the armature shaft (22) of an electric motor and having blades (44) on its periphery joined by an all-round ring (46). Pressure-equalising holes (48) through the wheel near its hub lead into an annular inner constriction (82) which is surrounded by an outer constriction (84). The inner constriction is wider than the outer one, in the ratio of the outer dia. (70) to the inner dia. (8) of trapezoidal sectoral pockets (64,164) in both faces of the casing (30,32). USE/ADVANTAGE - On motor vehicle. Arrangement and shaping of constrictions ensures that rotor reverts automatically to its advantageous middle position.
Patent DE-4240125-A1 (DE)
Title: Hydraulic unit for changing over container loads - has four swivel-out support elements with associated levers coupled with lift cylinders and connected by connecting bars.
Inventor: EICKWORTH PETER
IPC: B60P1/64
Filed: 1992-11-30
Abstract: The container (3) can be raised and lowered by simultaneously swivelling out the four support elements (2). Only one double- acting lift cylinder (8) is associated with the support elements lying on a longitudinal side and the coupling between the support elements and cylinder is provided by a front intermediate lever (3) and rear intermediate lever (4) which are connected together for swivel movement through coupling points by a coupling rod (15). When the four support elements are swivelled out the container load can be lowered right down to the ground to adapt stepped or infinitely to the loading height. When the container is in the raised position the supports have a definite inclined position and do not project sideways beyond the container. Each of the supports preferably has a support foot swivel mounted in a bearing as well as a slide path and guide. USE/ADVANTAGE - Faster and easier handling of container cargo with automatic locking.
Patent DE-4240677-A1 (DE)
Title: Drop=out detection device for magnetic recording tape - uses recording and playback heads for narrow band signal at fixed relative spacing
Inventor: SCHILFFARTH KARL-CHRISTIAN DR
IPC: G01R33/12
Filed: 1992-12-03
Abstract: The detection device uses one or more recording heads (8) for recording a narrow band signal longitudinally along at least one recording track and one or more corresponding playback heads (11) at a constant distance from the recording heads, the detected drop-outs being recorded by a counter. Pref. the track width of the recorded signal corresponds to that of the tested video system the tape transport velocity corresponding to the relative velocity between the video head and the recording tape in the video system, the frequency of the recorded signal lying in the same range as the luminance signal frequency-modulated carrier. USE - Detecting drop-out errors for video tape testing.