baber/WOPTO huggingface dataset:
Patent DE-3902456-A1 (DE)
Title: Composite structure of optical materials
Inventor: SASAKI SHIRO
IPC: G02B27/12
Filed: 1989-01-27
Abstract: In a composite structure of optical materials, in which a multilayer film (14) made of layers with a high refractive index and layers with a low refractive index is arranged on a substrate (11), and a material (12) to be joined thereto is connected to the upper side of the multilayer film (14) by means of an organic adhesive (13), the multilayer film (14) has at least one layer of a material of high density between a selected layer and the organic adhesive (13). Prevented by this means are the penetration of the adhesive into the multilayer film, the occurrence of chemical reactions and the generation of light absorptions. <IMAGE>
Patent DE-3902544-A1 (DE)
Title: Pressure-wave machine
Inventor: MAYER ANDREAS DIPL ING
IPC: F04F99/00
Filed: 1989-01-28
Abstract: The pressure-wave machine has a cellular wheel (1) which interacts with an air-guide casing (3) having at least one high-pressure air duct (10, 11). The invention provides a pressure-wave machine in which lower wall friction losses occur in the high-pressure air ducts (10, 11). This is achieved by providing an impact diffuser (12) in the wall of the high-pressure air duct (10) in casing part (4). <IMAGE>
Patent DE-3903300-A1 (DE)
Title: Superconducting oxidic ceramic material and process for the preparation thereof
Inventor: WUESTEFELD CLAUS DIPL CHEM
IPC: C04B35/45
Filed: 1989-02-04
Abstract: Superconducting oxidic ceramic materials in the form of copper oxides in combination with the oxides of yttrium and rare earths and also in the form of SrBi2Ox where x [lacuna] are known. The disadvantage of these compounds is their instability resulting from loss of oxygen. The invention is to provide new materials having a higher and more reproducible transition temperature. According to the invention, the superconducting substances are prepared in accordance with a hitherto unknown formula unit of general importance for the maintenance of the oxidation state. The compounds have a constant oxygen content. Adherence to the molar ratio of the metals valid for all compositions, namely 1/n = 3 log m/n, in which 1 represents the oxides of metals such as Tl, Pb and Bi and n represents the oxide of copper and m represents the alkaline earth metal oxides, gives, for high molar values of n and m, substances of hitherto unattained transition temperatures of up to 180 degrees kelvin and above.
Patent DE-3905584-A1 (DE)
Title: Adjustable hinge for window or door shutters
Inventor: HOETZL MANFRED
IPC: E05D7/04
Filed: 1989-02-23
Abstract: An adjustable hinge for window or door shutters exhibits a pin (6) for a shutter-side hinge sleeve on an extension arm (3, 3') which is mounted displaceably in a bracket (1, 1') provided for mounting on a frame. In the bracket (1, 1') there is provided, parallel to the axis of the extension arm (3, 3'), a spindle drive (7, 7') with a freely rotatably and axially non-displaceably mounted threaded bolt which, preferably via a driver (8), is connected to the extension arm (3, 3') for the axial displacement of the same. <IMAGE>
Patent DE-3906229-A1 (DE)
Title: Daylight system assisted by indirect lighting
Inventor: KOESTER HELMUT DIPL ING
IPC: F21S19/00
Filed: 1989-02-28
Abstract: The invention relates to the optically coupling of daylight-guiding systems and indirect-lighting systems for brightness-dependent assistance of the daylight supply of interior spaces by artificial light. The daylight-guiding system is in this case used as reflector for the indirect lighting. The artificial light is input into the window and reflected into the interior space by means of specific reflecting parts of the daylight-guiding system. The way in which the light input surfaces have been configured and arranged according to the invention permits them to be used simultaneously as reflectors for artificial light from the inside.
Patent DE-3906793-A1 (DE)
Title: Method for correcting cell losses in the transmission of digitally coded analog signals
Inventor: HESSENMUELLER HORST DIPL ING
IPC: H04L1/00
Filed: 1989-03-03
Abstract: According to CCITT recommendation I.121 for a broadband ISDN transmission network, an asynchronous time-division multiplex method (ATD) is provided. In this method, the signal is transmitted in cells of equal length and consisting of cell header and information field. Cells lost during the transmission can be detected by means of continuous numbering of the cells and corrected by means of a forward error correction (FEC) in connection with bit interleaving. The novel method is intended to prevent the high storage requirement in this method and the result of great time delay. Even-numbered samples are transmitted in cells 2n-1 and odd-numbered samples are transmitted in cells 2n. When a cell is missing, the missing samples can be reconstructed from the adjacent samples at the receiving end by means of an error masking technique. The method can be applied in the case of originally analog signals such as television signals, higher quality audio signals or video signals. <IMAGE>
Patent DE-3911624-A1 (DE)
Title: Tool for digging and undercutting slit trench - has cutting tool mounted on links pivoted to lower end of fixed frame
IPC: E02D17/13
Filed: 1989-04-09
Abstract: The tool for digging a slit trench has a frame (10) with a rotating cutting tool (36) mounted at its lower end.  The axis of the tool (36) is aligned parallel to the lower edge of the frame (10). The frame (10) consists of a rigid upper part (18) with two pivoted links (24) and (30) attached to its lower end with the cutting tool mounted on the lower end of the lower link (30).  These links (24, 30) can be rotated relative to the rigid upper part by means of hydraulic cylinders mounted inside the links and enable the sides of the trench to be undercut. USE - Excavating and undercutting of slit trenches.
Patent DE-3912433-A1 (DE)
Title: Homogeneous aq. soln. of hypericin or derivs. prodn. - by dissolving solid in organic solvent then dilution to predetermined active ingredient content
Inventor: KLEIN GUSTAV DR
IPC: A61K9/08
Filed: 1989-04-15
Abstract: Prodn. of galenical formulations of hypericin (I) and/or its derivs. such as pseudohypericin (Ia), initially in solid aggregate form, comprises first completely dissolving the active ingredient in a suitable solvent to produce a concentrate. This is then diluted with water, or an aq. soln., to form a homogeneous aq. soln. of predetermd.  (I), or deriv. soln. More specifically, the solid is dissolved in a water-sol.  organic liq., e.g. glycerine, propylene glycol and/or polyglycol, or in a solubiliser such as 'Tween' (RTM) or a sulphoxide or formamide deriv. The solid is pref. dissolved at 20-200 deg.c, pref. in a water or oil bath, with stirring or ultrasonic treatment. Dilution to the required concn. is with an aq. soln. of sugar (e.g. glucose, sucrose, fructose, etc.), partic. one suitable for infusion, or of a polyvalent alcohol (e.g. erythritol, arabitol or sorbitol). USE/ADVANTAGE - This method allows solns. of relatively high concn. (suitable for injection or infusion) to be prepd. from the sparingly sol. active ingredients.
Patent DE-3917585-A1 (DE)
Title: Process for the effect dyeing of wool or blends of wool with other textile fibres
Inventor: FLENSBERG HERMANN
IPC: D06P5/12
Filed: 1989-05-30
Abstract: Novel process for the effect dyeing of wool or blends of wool with other textile fibres by partial reservation of coloured or undyed wool with an impregnating liquor containing sulphamic acid or derivatives thereof, subsequent fixation and dyeing, characterised in that the impregnating liquor contains 25 to 100 g of sulphamic acid or derivatives thereof per 1000 g of impregnating liquor.
Patent DE-3921233-A1 (DE)
Inventor: IRION KLAUS DR
IPC: A61B1/00
Filed: 1989-06-28
Abstract: PCT No. PCT/DE90/00486 Sec. 371 Date Feb. 28, 1991 Sec. 102(e) Date Feb. 28, 1991 PCT Filed Jun. 28, 1990 PCT Pub. No. WO91/00049 PCT Pub. Date Jan. 10, 1991.An endoscope has a video device arranged at the distal end of the endoscope shaft. The video device is connected by means of a transmission system to a supply unit arranged at the proximal end of the endoscope shaft. The video device is provided with a lens for imaging an object field and an illumination unit. The lens and the image recorder are combined into a video unit which is held in such a movable manner at the endoscope shaft that the outer contour of the cross-section of the video unit lays essentially within the outer contour of the cross-section of the distal end of the endoscope shaft when being introduced into the cavity to be examined. After termination of the introduction procedure, the video unit can be moved in relation to the distal end of the endoscopic shaft beyond the outer contour of the cross-section and/or longitudinal section.
Patent DE-3926669-A1 (DE)
Title: Packet switching for async. transfer mode information blocks - coupling blocks contg. control and information signal bits via reverse coupling bays with multipled stages
Inventor: DANNER GERD DIPL PHYS
IPC: H04L12/54
Filed: 1989-08-11
Abstract: The communications exchange uses a multi-stage coupling circuit, each stage (KS1,KS2) having a number of coupling blocks (KV11...KV18; KV21...KV24). The latter are coupled together to allow the connection to be provided in opposite directions. Each input of each coupling module (KV11...KV18; KV21...KV24) is coupled to a storage device for holding the information blocks until the connection path for information transfer in the required direction is available. ADVANTAGE - Reduced reaction time for condition signals.
Patent DE-3930284-A1 (DE)
Inventor: RUNGE VOLKER
IPC: A61L9/01
Filed: 1989-09-11
Abstract: In a process for the adsorption of odorous substances from fermentation liquors and/or the useful substance concentrates produced therefrom the selectivity of the adsorbing agent has to be improved. This is achieved in that cells of fungi, plants and/or bacteria or cell wall particles from these organisms are used as selective adsorbing agents.
Patent DE-3936425-A1 (DE)
Title: Releasable fastener for two contacting components - has mushroom-shaped section next to larger end of conical bolt section
Inventor: REHLING PETER
IPC: F16B19/10
Filed: 1989-11-02
Abstract: A front plate (2) is detachably fastened to a frame (1) by a fastener consisting of two parts i.e. a bush (6) and a bolt (7). The bush has a flange (12) and spring fingers (10,11).  The bush is inserted through holes in the front plate and frame. The bolt is then inserted in the bush so that the spring fingers are elastically deflected in the radially outward direction.  When the bolt is pressed fully into the bush the spring fingers move inwards to grip a conical surface (19) of the bolt. ADVANTAGE - Improved fastening even with the bolt.
Patent DE-4000311-A1 (DE)
Title: Reconditioning of hides preservative salts - by heating in retort and stirring to vaporise or carbonise liq. and/or solid contaminants
Inventor: SCHICK MARTIN
IPC: B09B3/00
Filed: 1990-01-08
Abstract: Granular mineral salts or salt mixts., specially skin and hide preservatives, which have been contaminated with flesh and skin remnants, hairs, faeces, blood or urine, are treated for recycling by heating to over 330 deg.C in order to evaporate or carbonise the liq., and/or solid constituents.  During the heating process, the salt granules are kept in constant motion relative to each other by stirring or shaking. ADVANTAGE - This reconditions such salts and makes them fit for re-use. carried on a common structure (8).  The inner alloy steel cylinder (12) is charged with the contaminated salt from the storage bunker (24).  A paddle mixer shaft (34) is driven by a motor (38) at 8 rev./min. and carries paddles (48).  An electrically heated spiral (60) heats the retort.  Vapours and gases escape through the hollow shaft (34).  Brine can be injected  through the injector (65).  The purified salt is discharged to a cooling bin by lowering the cone (22).
Patent DE-4000531-A1 (DE)
Title: Adjusting engine valve stroke - involves hydraulic cylinder-piston closure device
Inventor: SCHMIDT ROLAND
IPC: F01L13/00
Filed: 1990-01-10
Abstract: The adjustment arrangement is used to alter the valve timing and valve stroke of curve-controlled valve mechanisms, especially cam drives.  It uses a pressure medium and control is achieved by a cylinder-piston combination. The piston (1) receives a control movement from the valve drive with an outflow opening (6) arranged in the cylinder (2), by whose closure through the action of the piston a force closure occurs which opens the valve. USE/ADVANTAGE - Arrangement to reduce gas exchange loss in a IC engine by providing variable valve stroke control.
Patent DE-4015870-A1 (DE)
Inventor: GESSNER ULRICH
IPC: E05D15/06
Filed: 1990-05-17
Abstract: A sliding door 3 consists of a plurality of wings 4 which are movable by means of rollers 19 on a double-rail system 5, 5'. In the closed state, the wings 4 lie next to one another in one plane. For opening, the wings 4 are displaceable via bent rail sections 8 into a stacking position. To provide a simple double-rail system, the latter consists of components 6 for the rectilinearly running double rails, between which separate components 7 are fitted in the region of the bent rail sections 8. <IMAGE>
Patent DE-4017975-A1 (DE)
Title: Washing machine drainage - has air escape and feed tubes connected to the valve cover to washing medium container and pump
Inventor: RICHTER SIEGFRIED DIPL ING
IPC: D06F39/08
Filed: 1990-06-05
Abstract: The drainage system for the fluid, particularly in washing machines, has connections at the valve cover (1) for an air escape tube (2) to the washing medium container (3) and a . connecting tube (4) to the feed side of the pump (5). A feed tube (6) connects the output side of the pump (5) to the water distributor (7). The pump (5) is a single-stage vane impeller pump.  The air escape tube (2) has a smaller cross section than the connecting (4) and feed (6) tubes. The pump (5) is located at the lowest point. The connection of the air escape channel (13) at the washing medium container (3) is below the injection channel (14). ADVANTAGE - The drainage system is reliable, is simply built and is cheaply made.
Patent DE-4020262-A1 (DE)
Title: Combustion chamber for IC engine - is formed by depression in piston crown
Inventor: MEIER KLAUS DIPL ING
IPC: F02B23/08
Filed: 1990-06-26
Abstract: The IC engine, with sparking plug ignition, has a piston (2) with a depression in its crown which forms the combustion chamber. This combustion chamber is divided into two separate combustion chambers (6,7) by a transverse rib (4). These two chambers (6,7) are connected to each other by an opening (5) which extends around the circumference of the crown. The height of the transverse rib (4) is reduced in the regions of the crown near to the cylinder walls. The raised circumferential ridge (11,12) which forms a wall of the combustion chamber does not project above the floor of the depression as far as does the transverse rib (4). USE - Piston top for IC engine.
Patent DE-4025105-A1 (DE)
Title: Centrifugal regulator for IC engine - with adjustment of regulator characteristic via bearing race position
Inventor: FUCHS HEINZ WOLFGANG
IPC: F02D1/10
Filed: 1990-08-08
Abstract: The centrifugal regulator has an axially sliding cuff (2) attached to the regulator drive shaft (1) and and acted on by a centrifugal weight (3). The movement of the cuff (2) is transferred to a regulating lever (4) via 2 ball bearings (5a) on diametrically opposite sides of the shaft (1). The basic distance between at least one bearing outer race (6) relative to a cooperating edge (11) of the cuff (2) is adjustable without dismantling the regulator. Pref. one of the bearings (5a) is attached to the regulating lever (4) via an eccentric bolt. ADVANTAGE - Simple adjustment of regulator characteristic.
Patent DE-4032333-A1 (DE)
Title: Transmission bearing in concast mould vibrating lever -  has rotationally driven bearing surface, to increase work life
Inventor: PARIS HANS-JOACHIM DIPL ING
IPC: B22D11/053
Filed: 1990-10-09
Abstract: Support bearings (2,2') of a power transmission lever (1) include rotationally driven (6) bearing surfaces (7) in which the driven means (6) is an air pressure mortar. USE/ADVANTAGE - Esp. for a vibrational lever in a concasting mould. The rotating bearing surface ensures longer working life for the lever without harming the vibrational conditions.
Patent DE-4033626-A1 (DE)
Title: Porous ceramic membranes prepn. for filtration - by coagulating suspension of ceramic material in soln. of plastics material and heating to volatilise plastics and sinter ceramic material
Inventor: PENTH FRANZ
IPC: B01D71/02
Filed: 1990-10-23
Abstract: The membranes (I) are prepd. by (1) forming plastics membrane contg. ceramic by coagulating suspension of ceramic material in soln. of plastics material (II) in a solvent (2) heating such that (II) successively pre-oxidises, carbonises, then oxidises to volatile gases so that a ceramic mass remains in original (II)-ceramic article and sinters to solid ceramic body with original pore structure. (II) at its decompostion temp. pref. has sufficient mechanical strength for maintaining prescribed pore structure, partic. polyacrylonitrile (III), cellulose, or cellulose deriv. Ceramic material is powder of pure metal oxide, partic. Al2O3, TiO2, or ZrO2, or hydroxide, carbide, partic. SiC, nitride, or natural mixed oxides. Solvent is acetone, dimethylformamide, dimethylacetamide, or N-methyl-2-pyrrolidone (IV). USE/ADVANTAGE - In micro- or ultra-filtration (claimed). (I) combine advantages of membranes of (II) and of cermaic materials, have pronounced asymmetric structure with drainage canals commencing immediately below uppermost fine porous layer and broadening conically to rear face of (I) (less prone to blockage), and their prepn. involves only one firing. (0/3)
Patent DE-4035348-A1 (DE)
Title: Appts. for controlled gas nitriding of iron@ components - has heated preliminary chamber with lifting device, heaters and ammonia and water inlets
Inventor: WEISSGERBER FRIEDMAR
IPC: C23C8/26
Filed: 1990-11-07
Abstract: The installation for controlled gas nitriding of iron components for a temp. range of up to 650 deg.C has heated preliminary chamber (6) adjoining the process chamber (7). The preliminary chamber is provided with a lifting device (15) and consists of unheated and heated sections (12, 13). The heated section has vertical heaters (1), with water and ammonia gas inlets (3, 4) arranged between them. USE/ADVANTAGE - For rapid gas nitriding of iron components. Reduced nitriding times as well as reduced energy and gas consumption together with improved quality of the components treated.
Patent DE-4100237-A1 (DE)
Title: Electro-optical LC system
Inventor: FINKENZELLER HANS-ULRICH RUDOL
IPC: C09K19/12
Filed: 1991-01-07
Abstract: (+1.11.89(2), 9.12.89, 10.1.90(2), 12.1.90, 16.1.90, 19.1.90(3), 22.1.90, 23.1.90, 25.1.90-DE-936307/8, 940788, 000470/1, 000723, 001023, 001539, 001540/1, 001683, 001843, 002146) Electro-optical LC system comprises a dielectrically positive LC mixt. (LCM) and another optically transparent medium (M2) between 2 electrodes which may be mounted on substrate plates; the LC mols. have an irregular orientation in the "off" state one of the refractive indices of LCM matches that of the matrix (nM) and/or the ratio of the masses (LCM):(M2) is 1.5 or above, and the system shows reduced transmission in one of the switching states w.r.t. the other state, irrespective of the polarisation of the incident light; the novelty is that LCM contains cpd(s).  of formula (I). In (I), Q1 = A1-Z1-(Z2-Z2)m- (with A1, A2 = trans-1,4-cyclohexylene (Cyc), 1,4-phenylene (Phe), 2-fluoro-Phe or 3-fluoro-Phe; one of the gps. A1 and (if present) A2 can also = pyridine-, pyrimidine-, 1,3-dioxan- or tetrahydropyran-2,5-diyl, or naphthalene-2,6-diyl; Z1, Z2 = single bond, CH2CH2, COO, OCO, -CC-, and/or CH2O; m = 0, 1 or 2); Y, X = H or F; one gp. X or Y can also = Cl; W = CN, Cl, F, CF3, OCF3, OCHF2, NCS or R2 (with R2 = as for R1 below); R1 = 1-12C alkyl, opt. with 1 or 2 non-adjacent CH2 gps. replaced by O or CH=CH.
Patent DE-4101061-A1 (DE)
Title: Non-return safety valve for pipes - has disc driven up by float to adjoin perforated disc
Inventor: BARBKNECHT INGRID
IPC: A61M39/24
Filed: 1991-01-16
Abstract: The non-return safety valve in vertical pipes and tubes uses a thin floating disc which strikes against a fixed perforated disc when propelled upwards. This allows the water to flow through but not return. ADVANTAGE - The valve withstands high pressures and is simple in manufacture.
Patent DE-4106906-A1 (DE)
Title: Filler safety device for evaporator for liq. anaesthetic - prevents filling unless temp. of anaesthetic is below its boiling point
Inventor: FALB WOLFGANG
IPC: A61M16/18
Filed: 1991-03-05
Abstract: An evaporator (2) for a liquid anaesthetic has a filler chamber (3) which is fitted with a filler safety device (1). The safety device has a slot (8) which receives an adaptor which connects the filler pipe to the chamber inlet (5) and connects the vent passage to a vent pipe. When the evaporator is not being filled, the slot (8) is occupied by a slider (9) which replaces the adaptor. The slider (9) is locked in the slot by the rod (19) of a temperature sensitive device which engages a recess in the slider. The slider cannot be removed until the temperature of the anaesthetic falls below its boiling point so that the device (15) contracts and releases the slider. USE/ADVANTAGE - Filler safety device for anaesthetic evaporator. Evaporator can only be filled when temperature of anaesthetic is below its boiling point.
Patent DE-4115204-A1 (DE)
Title: Connection fitting for vehicle seat with back rest - uses slotted plate spring as torque transmission element
Inventor: ERNST HANS-HELLMUT
IPC: B60N2/225
Filed: 1991-05-10
Abstract: The connection fitting for a vehicle seat has an adjustable back rest having a plate spring (6) forming a fixed connection between a drive shaft (5) and a rotatable eccentric (3). The plate spring has a slotted region (6b) at its centre forming individual spring arms which stand in positive engagement with ribs (3b) in the eccentric. The plate spring also has holes (6a) at its outer edge which are in fixed engagement with the studs (7a) of a pick up disc mounted on the drive shaft. ADVANTAGE - Seat fitting in which the spring not only produces axial tension but also acts as a torque transmission.
Patent DE-4115258-A1 (DE)
Inventor: SAITO SHOSAKU
IPC: B60S1/16
Filed: 1991-05-10
Abstract: A lag angle is formed between first and second rotary wipers at the initial operation time in order to avoid interference between them. The wipers are rotated while holding the lag angle during operation, and the lag angle generated at the initial operation time is cancelled when the operation is stopped. The rotary window cleaner comprises a first motor 22 having a driving shaft (30) for the first wiper 2, a second motor 26 having a driving shaft 40 for the second wiper 3, and a connection mechanism A for connecting and disconnecting the driving shaft of the first motor to and from the driving shaft of the second motor. A control mechanism B, Fig 4 (not shown) for the motors is triggered by magnets (72, 73) which are mounted on gears (70, 71) at differing rotary positions. Also, the driving shafts are connected together with lost motion by use of a screw (31) on one shaft driving a travelling element (50) towards the other. <IMAGE>