baber/WOPTO huggingface dataset:
Patent DE-4008372-A1 (DE)
Inventor: MUHL WERNER
IPC: F02D19/08
Filed: 1990-03-15
Abstract: An otto internal combustion engine (1) can be operated on fuels with different methanol fractions by means of an adaptive lambda control system which stores the dosing characteristic values for the mixing installation in function of the signals from a lambda sensor (6). If the almost empty tank (12) of a vehicle with this installation is filled with a fuel with a markedly different methanol fraction and the engine then switched off, starting could be difficult at the next cold start. To overcome this problem, a shutoff valve (11) is located downstream of the tank and a fuel buffer volume (10) is provided downstream of the shutoff valve (11).
Patent DE-4012249-A1 (DE)
IPC: F25C1/08
Filed: 1990-04-14
Abstract: A device for producing clear ice lumps (17), in particular for use in association with refrigerators or deep-freezers, in which there is created in a tank (16) a water flow which flows around cooling fingers (1), and in which the cooling fingers (1) are in heat-conducting connection with a refrigerant pipe (6) fed with intensely cooled refrigerating medium, with an electric heating device for heating the cooling fingers during freeing of the clear ice lumps, is to be improved with regard to the favourable utilisation of the refrigerating medium and perfect clear ice formation. This is achieved according to the invention in that a thermal barrier (4, 5) is interposed between refrigerant pipe (6) and cooling finger (1), and in that the electric heating device (14) lies behind the thermal barrier (4, 5). An advantageous control circuit, with which a temperature, in particular above -10 DEG C, can be maintained, is constructed in such a manner that the temperature of the cooling finger (1) behind the thermal barrier (4, 5) is held at least approximately constant above a lower limit value by a regulating circuit which controls the electric heating device (14). 
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Patent DE-4012846-A1 (DE)
Title: Video camera control preventing overflow of coder buffer memory - uses switches, amplifiers, sample-and-hold circuits, AND=gate and time to hold camera parameters constant
Inventor: DEMMER WALTER
IPC: H04N19/00
Filed: 1990-04-23
Abstract: The control device is used to prevent the overflow of a buffer memory (8) associated with a coder (7) for the video images by holding the video camera parameters unaltered when a given filling level of the buffer memory (8) is reached. Pref. a timer (5,6) is activated when the buffer memory (8) reaches a given filling level, the adjustment of the camera parameters, e.g. the focal length, less aperture, while balance, is only effected after the  elapse of the timer internal, the timer (5,6) then being reset. ADVANTAGE - Prevents degraded image quality of decoded video images.a
Patent DE-4013517-A1 (DE)
Inventor: BERNHARDT UDO
IPC: A21C3/02
Filed: 1990-04-27
Abstract: Wiper device for cleaning the light barrier (9) of a dough rolling machine (1), in particular for reversing operation, which has a pressure roller (2) which limits the dough passage gap (4) adjustably and with whose gap-adjusting stroke (36) a wiper (10) which passes over the light barrier surface is coupled via an actuating element (12), and a releasing organ (31), hinged on or opposite the dough rolling machine (1), which acts on the actuating element (12) due to a swivelling movement (34) which is synchronised with the press roller adjusting stroke (36). <IMAGE>
Patent DE-4017018-A1 (DE)
Title: Stimulable sheet radiation image line scanner - has fluorescent rod within a high reflective shrouding for more effective light-electrical conversion
Inventor: KOCH ECKHARD DR SC NAT
IPC: C09K11/06
Filed: 1990-05-26
Abstract: The appts. to give a line scan of material with latent luminescent picture data, such as for luminescent radiography, where the luminescence is energised for scanning, has a fluorescent rod (11,12) as the light conductor, with a cross section to match the light input surface of the light-electrical converter.  A high reflective shrouding (16) covers rod apart from the end side for the luminescent and fluorescent radiation.  A slit opening (17) allows light to pass from the activated light emission into the rod (11,12), and its length exceeds the line length of the picture. ADVANTAGE - The appts. gives a more effective conversion of light into electrical signals, within a relatively small assembly  which is simple and less costly than conventional appts.
Patent DE-4021407-A1 (DE)
Title: Cross-cutting machine for flat sheeting - has overhead cutter moving in two directions and located above transverse slit in suction box which holds material during cutting
Inventor: GERDES HEINZ
IPC: B23K26/14
Filed: 1990-07-05
Abstract: A cutting machine for flat sheets, such as films, plates etc. of e.g. metal, wood, card, fabric, leather, plastics, ceramics, or their combinations, has a means of holding the material in position, a cutter head moving over the front face of the held material, and a suction device which engages the reverse side of the material and which moves over that side. The machine has an overhead cross-arm (4) carrying the cutter head (2) and mounted on end rails (6,7) so that the cutter moves in two directions. The arm (4) can be driven by a stepped motor and the overall control can be by microcomputer. The actual cutter is e.g. a laser beam (8). The material (1) is held on a carriage (16). A suction box (20) underneath the material (1) extends across the full width and has a slit (24) in its top cover (22). This suction box (20) also moves on end rails (26,27) and it is connected to a suitable fan. In action the cutter head (2) moves immediately above the suction slit (24); offcut material is then drawn off. ADVANTAGE - The suction device is very simple, so that it is cheap and requires min. maintenance without any loss of efficiency.
Patent DE-4025813-A1 (DE)
Title: Heat protective material - has inner layer of nonwoven partially graphitised polyacrylonitrile fibres
Inventor: HAHN MANFRED DIPL CHEM DR
IPC: A41D31/00
Filed: 1990-08-16
Abstract: The heat-protection material, with an inner nonwoven or woven layer using fibres which give a high temp. resistance and insulation and which are hard to ignite, and an outer metal foil or metallised surface, uses partially graphitised polyacrylonitrile fibres for the nonwoven (1). The material (1) is then clad with a metal foil (3) or is metallised. Pref. reinforcement yarns (5,6) are worked into the nonwoven (1), in both the warp and weft directions to give 4-24 yarns/inch or 8-10 yarns/inch in the warp direction, and 4-15 yarns/inch or 6-8 yarns/inch in the weft direction. The nonwoven has a wt. of 4-100 g/m2, with reinforcement yarns (5,6) at a rate of 12-200/m2. The polyacrylonitrile fibres have a limiting oxygen index value of at least 40, and the reinforcement yarns along the warp line have a LOI value below 27. The reinforcement yarns (5,6) are of a thermoplastic material, pref. polyester or polyamidimide. ADVANTAGE - The material gives protection against heat, but also gives cover for exposure to flames.
Patent DE-4027588-A1 (DE)
Title: New 5-substd. 2,4-di:amino-pyrimidine cpds. -  are antibacterial and antimycotic agents, esp. active against tuberculosis bacteria and Candida albicans
Inventor: SEYDEL JOACHIM K PROF DR
IPC: C07D239/48
Filed: 1990-08-31
Abstract: 2,4-diaminopyrimidine derivs. of formula (I) are new, where X = O, S or CH2, R = phenyl or naphthyl opt. substd. by halogen, Me, Et, OMe or OEt. USE/ADVANTAGE - (I) are antimycobacterial and antimycotic agnets, e.g. with higher activity than trimethoprim against mycobacterium tuberculosis and other mycobacterium spp. and against Candida albicans dihydrofolate reductase (DHFR). Synergistic effects may be administered by combinations of (I) with dihydrofolate synthase inhibitors such as sulphonamides or 4,4'-diaminodiphenyl sulphone. In an example a mixt. of 480mg 2,4-diamino-5-hydroxypyrrimidine 2HCl, 650 mg 1-naphthylmethyl chloride and 9ml 2-methoxymethanol pretreated with 170 mg Na was stirred at room temp. for 4 days, treated with 50ml of 3N NaOH, and the ppte. filtered off and recrystd. from MeOH to give 2,4-diamino-5- (1-naphthylmethoxy) -pyrimidine (Ia), m.pt. 190 deg.C.
Patent DE-4029736-A1 (DE)
Inventor: SOMMER KARL PROF DR
IPC: C05G3/80
Filed: 1990-09-20
Abstract: Soil additive pellet for supplying plants with nitrogen. The soil additive pellet is composed of a mixture of, on the one hand, a nitrogen source based on ammonium and/or urea and, on the other hand, a matrix former composed of a substance from the group comprising gypsum, clay, magnesium sulphate or mixtures of these substances. The mixture is shaped into soil additive pellets which are sufficiently stable in the soil. There are also specified processes for the preparation of the soil additive pellets.
Patent DE-4035570-A1 (DE)
Title: Multi row grubbing machine for root crops - comprises cross beam with suspended share bearer connected at ends by hydraulic rams
Inventor: HOLMER ALFONS
IPC: A01D33/14
Filed: 1990-11-08
Abstract: A multi-row grubbing machine for root crops is fitted to the front of a self propelled turnip lifter or a multi purpose vehicle or a tractor. It consists of rows of discs (17) which are forced into the ground, above which is a cross beam (10) with hydraulic rams (11) at either end connected to the ends of a bearer (12) carrying the shares (20) attached to the ends of upright bars (19). The rams (11) vary the height of the discs (17) and the share bearer (12), and work independently of each other. USE/ADVANTAGE - The depth at which the shares work is independently controlled.
Patent DE-4037675-A1 (DE)
Inventor: HOFFMANN HORST
IPC: B29C48/00
Filed: 1990-11-27
Abstract: A process and an apparatus for applying a polymeric enclosure to surfaces of articles (5) to provide protection against environmental influences, corrosion or mechanical stressing of the surfaces, is described. The process is essentially a continuous process, involving extruding a semi-finished polymeric part (7) in the form of a strip or tube which is slit or split or in the form of two strips, while it is in its deformable state, positioning the article (5) to be enclosed in the extrusion path of the semi-finished part and then using moulding presses (2a, 2b) to urge the semi-finished part around the article.
Patent DE-4102901-A1 (DE)
Title: Sports racket with improved damping - has head hand grip and throat area between two arms with cut-away sections parallel to strings and filled with silicone rubber
Inventor: SCHWARZ MARCUS
IPC: A63B49/03
Filed: 1991-01-31
Abstract: The invention describes a racket frame (5), esp. a tennis racket comprising a hand grip (1), a head (8) and a throat section (3) formed of two arms (3',3") connecting the head (8) to the handle (1). A slot-like cut away area in both arms (3',3") forming the throat (3) runs parallel to the racket strings (7) and is filled with silicane or silicone rubber for improved damping. USE/ADVANTAGE - The racket can be used for any racket sport, but is esp. suitable for tennis and has improved vibration damping of impact by a ball.
Patent DE-4105626-A1 (DE)
Title: Tennis court net height adjuster - consists of cable tightener inside net post, with outside lever, cog wheel, toothed rack and two catches
Inventor: PILLER HELMUT
IPC: A63B61/02
Filed: 1991-02-22
Abstract: The height-adjustment control for tennis-court nets consists of a cable-tightener (2) inside the net-post (1) and externally operated by a lever (5). A cog-wheel (4) engages with a toothed rack (3) on the cable-tightener. The cog-wheel is moved up or down from outside by a lever which has two exact catches (6). The tennis-net is fixed to the post outside the doubles-court boundary, and 0.913 metres outside the singles-court boundary, and adjusted to an exact height of 1.060 metres. ADVANTAGE - The tennis net is quickly and accurately fixed at the right height for a singles or doubles court by extending the net-tightener by a vertical toothed rack adjusted in height by a horizontally rotated cog wheel connected to a lever outside the tube.
Patent DE-4109072-A1 (DE)
Title: Check valve for radial piston pump - uses spring tongue in circumferential groove in valve housing
Inventor: HERTELL SIEGFRIED DIPL ING
IPC: F04B1/04
Filed: 1991-03-20
Abstract: The radial piston pump has a housing with a groove (7) around the circumference into which the outlet openings (24) from the cylinders communicate and in which outlet check valves (8) are arranged. The check valves are spring-tongue valves stressed on one side in the groove with their free ends against the cylinder outlet openings, and curved more strongly than the curve of the groove. ADVANTAGE - Check valve for a radial piston pump which is simple to manufacture and has a good seat.
Patent DE-4119836-A1 (DE)
Inventor: GALLIEN ARNOLD
IPC: C25B9/17
Filed: 1991-06-12
Abstract: PCT No. PCT/DE92/00499 Sec. 371 Date Feb. 18, 1994 Sec. 102(e) Date Feb. 18, 1994 PCT Filed Jun. 12, 1992 PCT Pub. No. WO92/22681 PCT Pub. Date Dec. 23, 1992.An electrolysis cell for gas-emitting or gas dissipating electrolytic processes using at least one electrode having a capillary structure in its edge region (51, 52) on the reaction side such that the gas (6) and electrolyte (L) are substantially conveyed there transversely to the electrode and in which there is a capillary slit adjoining this edge region which offers substantially less resistance to the conveyance of the gas and electrolyte along the vertical electrode plane than the edge region. The preferred embodiment are a plurality of foil-like (44), mutually supported, shaped electrode components. The process of the invention for running the electrolysis cell makes full use of its ejector effect, i.e. it supplies itself with electrolyte when the level of electrolyte in the cell is greatly reduced.
Patent DE-4127467-A1 (DE)
Inventor: SCHWENK HANS MARTIN ING GRAD
IPC: H05K5/00
Filed: 1991-08-20
Abstract: An equipment cabinet for electrical and electronic push-in equipment has fixed panelling parts 2 and a door 3 which is attached by means of hinges such that it can pivot. The door 3 and the ends of the panelling parts 2 located opposite are in each case provided with edge strips 5, 5' which run all round, are bent inwards at an acute angle of preferably 45 degrees and carry sealing surfaces 6, 6', which are opposite and parallel to one another at a short distance apart. Provided between the sealing surfaces 6, 6' are resilient seals which may comprise the contact strips 7, consisting of an electrically highly conductive material, and rubber-elastic sealing strips 8 which are arranged parallel, alongside. As a result of the oblique arrangement of the sealing surfaces 6, 6', the spring forces F exerted by the seals are divided into two force components F1 and F2, it being necessary to overcome only the one force component F1 when pushing the door 3 to. <IMAGE>
Patent DE-4130784-A1 (DE)
Inventor: SCHENKYR DIETER DIPL PHYS
IPC: H04B7/08
Filed: 1991-09-16
Abstract: Reception process for a diversity system with several individual receiving aerials, on whose output signals an auxiliary modulation is added, a sum signal being formed therefrom, then demodulated and the phase relation and/or amplitude of the individual signals in relation to the sum signal being derived therefrom. Complete compatibility between the diversity system used and the individual receivers marketed by different manufacturers is achieved in that the calibration process for correcting faulty transmissions in the entire receiving system made up of the diversity circuitry (5) and the receiver circuit (7) is performed. The calibration process preferably comprises a transit time, a phase and/or an amplitude correction. The calibration process is preferably program-controlled and fully automatic. A receiving aerial arrangement for implementing the process is given.
Patent DE-4131570-A1 (DE)
Title: Rectifier bridge for vehicle alternator - has identical phase conductor connections provided for 2 diode sets on respective plates
Inventor: GALLIET MICHEL
IPC: H02K11/04
Filed: 1991-09-23
Abstract: The rectifier bridge has 2 sets of diodes (12,14) mounted on 2 overlying plates (11,13), the individual diodes (12,14) coupled to the phase conductors (16) arranged in a concentric arc around the outer periphery of the first plate (11). The second plate (13) has notches acommodating the diodes (12) on the first plate (11), so that each lies adjacent a diode (14) on the second plate (13). The connections for each diode set are identical, provided by parallel latches (17,18). USE/ADVANTAGE - Simplified diode connections for vehicle alternator rectifier bridge.
Patent DE-4138849-A1 (DE)
Title: Intrusion mould filling for thermoplastic blanks - uses timed filling in sequence with reduced pressure in final filling stage from continuous extruder
Inventor: BECK ERICH
IPC: B29C45/12
Filed: 1991-11-26
Abstract: The assembly to produce blanks of thermoplastics, from a continuously operating extruder, uses intrusion moulding in a static assembly with at least two moulds which are filled in succession from a continuous flow of melted material. Before the end of a filling operation of a mould the next mould filling action starts for the next mould, in the time sequence, by release of the molten flow and the remainder of the filling is at a reduced pressure. Pref. the filling pressure is maintained at the mould for the whole filling and cooling phases, with a short interruption for emptying. The moulded blanks are ejected by the pressure of steam formed by the coolant water injected at the heated zone, and/or by compressed air. The moulded blank can also be ejected by the subsequent molten pressure, where the mould and feed closure acts through holding the moulded blank to be ejected. ADVANTAGE - The final filling of the mould is slowed down to avoid a pressure shock. In operation all the feed slides are open until a short closing time in each mould for emptying, the residual pressure remains for the filling time at each mould in the whole array, so that the hollow zone shrinkage is minimised to give uninterrupted extruder working.
Patent DE-4140167-A1 (DE)
Title: Safety belt - has portions of the belt with different characteristics which collapse to avoid injury
IPC: A62B35/04
Filed: 1991-12-05
Abstract: A safety belt is constructed continuously and at programmed distances various regions of rigidity and elasticity are created. Pref. the safety belt material is woven on a loom, with certain sections at a specific distance having a variation in the type of yarn. The basic material is polyester and polyamide. The variation may be made prior to weaving, and if subsequent to weaving, there is a removal of some yarn at the specified distances. The method of removal may be by thermal ray treatment, ultrasonics, or by chemical treatment. There is also the possibility of removing certain sections of fibre by a cold mechanical process. It is also possible to alter certain fibres by a mechanical process prior to weaving. Some non-stretch yarn such as Kevlar, Spectra or carbon fibre may be utilised. Some of the high stretch yarn may also be removed. ADVANTAGE - The design allows extension when a vehicle is suddnely stopped, with the necessary restraint, but eliminates a catapult action on recoil. Has inbuilt collapse characteristics.
Patent DE-4143086-A1 (DE)
Title: Material grinding machine - has guide delivering to several rotary drums in succession
Inventor: PAGE JAMES H
IPC: B02C4/08
Filed: 1991-12-27
Abstract: The material-grinding machine has a vertical chamber open to the top and containing rotary drums (50,56) spaced apart in the vertical direction. A conveyor (40) delivers the material into the top part of the chamber, which contains a vertical guide (26-28,35) delivering it to the drums in succession. This guide can be fixed to a chamber access door (21), which is pre-loaded into the shut position. ADVANTAGE - Reduces lumps of asphalt aggregate etc. into particles of a pre-determined size.
Patent DE-4143103-A1 (DE)
Title: Turning surface of aluminium@ substrate for electrophotographic photoreceptor - with sintered polycrystalline diamond tool and water or aq. soln. as cutting fluid
Inventor: KAWADA SUNAO
IPC: G03G5/10
Filed: 1991-12-27
Abstract: Surface treatment of an electrophotographic photoreceptor substrate of Al material on a lathe involves (a) supplying the substrate with a cutting fluid (I) consisting of water, an aq. surfactant soln. or an aq. soln. of a water-soluble organic solvent; and (b) cutting the surface with a sintered polycrystalline diamond tool. Pref. (I) is supplied in amts. greater than 0.003 ml/cm2. Cutting is carried out so that the surface roughness is 0.3-3.0 micro-m R(max) and 5-100 tiny recesses/traverse in the tool feed direction are obtd. on the surface, depending on the microgranule size of the sintered polycrystalline diamond. ADVANTAGE - The surface has good cleaning properties and causes fewer copying defects than usual.
Patent DE-4201385-A1 (DE)
Title: Optical measurement system with light curtain, photoelectric receiver - contains null point, linearity error correction circuit for digitised receiver signal
Inventor: RENNER PETER DIPL ING
IPC: G01B11/02
Filed: 1992-01-21
Abstract: The optical measurement system contg. a light source (1), lens (6) and photoelectric receiver element (2) produces a light curtain (8). Dimensions of objects (9) inserted into the light curtain can be measured from the shadow cast onto the receiver element. The resulting analogue signal from the element is digitised. Linearity and null point errors of the optical system are corrected for in a digital error correction device. USE/ADVANTAGE - The system compensates for ageing and fouling effects in addition to linearity and null point errors eg by a microprocessor.
Patent DE-4202321-A1 (DE)
Title: Low temp. carbonisation of waste materials - in series of 3 chambers for filling, carbonisation and cooling, with afterburner, has low energy requirement and high throughput
Inventor: GORSKI ADOLF
IPC: F23G5/027
Filed: 1992-01-29
Abstract: Plant is for the low-temp. carbonisation of waste materials has a treatment chamber (1) and an arrangement for the afterburning of the pyrolysis gases. The treatment chamber consists of a series of three chambers for, respectively, filling, carbonisation, and cooling. The carbonisation and cooling chambers each have a double-wall housing with the inner walls fitted with heat-exchanger ribs, and the inner space of each (14) has a deflector plate (15) with nozzles on one side. The carbonisation and the cooling chambers each have a circulator arrangement (8) that draws in the gases on one side of the chamber and blows them through the nozzles on the other side. USE/ADVANTAGE - Difficulties with known pyrolysis plants include leakages at drum seams, and, in another type, long cycle times and hence low throughput. The proposed plant avoids these drawbacks, operates with min. heating energy, and has a very high throughput of the material being handled.
Patent DE-4204116-A1 (DE)
Title: X=ray image processing system - provides filter between with two converters and semiconductor array and real=time on=line-subtraction processing
Inventor: HAENDLE JOERG DIPL ING
IPC: H05G1/60
Filed: 1992-02-12
Abstract: The system contains an X-ray source (1) and a filter (3). The beam passes through the patient (4) and strikes a detector (5). The detector consists of two large area X-ray converters with a two-dimensional semiconductor array and an interposed filter. The image from the two detector planes is read out via an A/D (7) converter and processed in differencing mode so as to maximise contrast and reduce S/N. The resulting image frame store (9) is converted to a video signal for display (10,11).The second filter may consist of a matrix structure using slices of X ray absorbing material. USE/ADVANTAGE - Medical high performance X-ray imaging.