baber/WOPTO huggingface dataset:
Patent DE-3924788-A1 (DE)
Title: Mfr. method for saw-blades - involves cutting steel strip along zigzag longitudinal line to make two blades
Inventor: SPIEGELER JAKOB
IPC: B23D65/02
Filed: 1989-07-24
Abstract: Sawblades are produced two at a time from a steel strip. The steel strip is stamped along a zig-zag longitudinal line so that two strips are produced with each strip having a serrated edge. Instead of stamping along a continuous line, the initial strip (110) may be cut into two parts by stamping a line of overlapping triangular holes to produce two blades (114, 115). USE/ADVANTAGE - Production of sawblades with min. wastage of material.
Patent DE-3925780-A1 (DE)
Title: Noise and heat retaining barrier for ceilings - comprising layer of mineral wool attached by flat-headed fastener and covered by light concrete layer and plastic film
Inventor: KUHN KLAUS
IPC: E04F13/08
Filed: 1989-08-03
Abstract: A barrier element (201), typically for a ceiling in buildings, remains in place after the concrete in the ceiling construction has hardened off. The barrier (201) has an acceptable visible surface which does not require finishing. Barrier construction consists of a mineral wool panel (202) through which at least one fastener (203) passes. The fastener (203) has a flat head (204) which rests on the outer face of the panel (202) and is covered by a layer of light concrete (208). A removable plastic film, typically polyethylene separates the concrete (208) from the outer moulding shell (212). USE/ADVANTAGE - Building construction, particularly ceilings. Has fire resistance props., noise damping characteristics and is a good heat insulator. External surface does not require further finishing.
Patent DE-3926471-A1 (DE)
Title: Heat treatment of organic material mixts. - by exposure to microwave field of given frequency in a resonance space
Inventor: SCHULZE REINHARD
IPC: C11B9/00
Filed: 1989-08-10
Abstract: Mixts. of organic substances are liquefied, specially for the mfr. of perfumes, by applying a microwave field of a given nominal frequency. At least one component of the mixt. should be absorptive within the nominal frequency and a given temp. range. The rectangular resonance chamber should have two facing side walls with microwave input fields, both with the antennae of many magnetrons in a raster pattern, producing a stationary microwave field. The principal dimension should not be less than eight times the free-space wavelength of the microwave field, referred to nominal frequency. A max. percentage of 8% of the resonance space vol. should be applied for treatment by a microwave field. ADVANTAGE - This performs a uniform heat treatment, esp. for liquefaction of delicate organic mixts. free from decomposition.
Patent DE-3928516-A1 (DE)
Title: Lifting and moving paving slabs in batches - involves movable jaws controlled by compressed air operated by lever in grip handle
Inventor: TYSSEN MICHAEL
IPC: B65G7/12
Filed: 1989-08-29
Abstract: The device is used for lifting and moving batches of paving slabs (1). It has two movable jaws (2) sliding The jaws (2) are controlled by a compressed air cylinder (6) operated by a lever (7) in one of the handles (3). The jaws are forced inwards using the pressure of the compressed air, so that the batches of paving slabs are held firmly and are only dropped when the pressure is released. USE/ADVANTAGE - Lifting and transporting device for batches of paving stones can be used by one or two operatives.
Patent DE-3935130-A1 (DE)
Title: Checking composition of steel work pieces - using Eddy current technique to measure characteristic values for comparison with reference curves
Inventor: NAGELS HANS-JUERGEN DIPL ING
IPC: G01N27/72
Filed: 1989-10-19
Abstract: A method of checking errors in steel workpieces involves detecting the actual values of several characteristics which identify them and comparing these with reference workpiece values.  The values are measured using a conventional eddy current technique which produces loci representing the characteristics. The loci produced for at least a first workpiece which is identified by spectral testing are used as the reference loci for all subsequent workpieces in a production run. USE/ADVANTAGE - Enables regulated, simple checking giving positive identification of steel workpieces in short testing time.
Patent DE-3935612-A1 (DE)
Title: IC engine fuel vapour recovery accessory - has additional pipe from filter to intake closed at low engine speed
Inventor: FISCHER HANS-UDO
IPC: F02M25/08
Filed: 1989-10-26
Abstract: The accessory for an IC engine recovers fuel vapour accumulated in a vapour filter.  It has a first regeneration pipe between the filter and an area under vacuum when the engine is under low load. A second regeneration pipe (11) runs from the filter (8) to a point on the engine intake upstream of a measurement point for the air flow rate.  This has a stop valve (18) shutting when the engine is stopped or running at low speed.  A flushing fan (16) delivers into the filter at a rate increasing with speed, and is driven (15) from the engine (1). USE/ADVANTAGE - Fuel vapour recovery system for IC engine.  Ensures proper filter regeneration over virtually the entire engine speed range.
Patent DE-4004557-A1 (DE)
Title: Television display system - uses video camera and memories to display variety of single frame pictures during stand by operation of TV
Inventor: WEBER JAN TOBIAS
IPC: H04N5/44
Filed: 1990-02-14
Abstract: The television system has a receiver (2) connected to inputs from a cable (10), antenna (8) and video camera (22) and an output to a display/monitor (16). Receiver selects, processes and demodulates TV pictures from all three sources. In particular, the TV receiver (2) includes memories (21a, b, c) to enable storage of a complete TV picture, and switches (26a, b, c, 12) to enable playback of single picture frames. Preferably, memories (21a, b, c) are non volatile. USE/ADVANTAGE - Display of pictures/scenery on wall mounted TV display systems.
Patent DE-4006212-A1 (DE)
Title: Non-rectangular venetian blind - has vertical lifting member driven at different rates
Inventor: BAIER OSKAR
IPC: E06B9/303
Filed: 1990-02-28
Abstract: The Venetian blind (1) is non-rectangular and preferably of trapezium shape, having slats (4a,4b) of different lengths and inclined to the horizontal, working in parallel vertical guide strings (9) at the sides.  The top slats (4a), extending to the bottom at the shorter side of the blind, are all of the same length, while the bottom ones (4b) are of different lengths, ending at a rail (5) which is horizontal in the lowermost position.  The rail is fixed to vertical lifting members (11) at the sides and which work in  guides at the inclined top end of the blind. The members wind onto components (14) driven at  different rates corresponding to the difference in their lengths.  They can be in the form of strips, preferably passing through the slats and winding onto drums. USE/ADVANTAGE - Simplicity, low cost, and easy to operate.
Patent DE-4012670-A1 (DE)
Inventor: GRABBE KLAUS DR
IPC: B09B1/00
Filed: 1990-04-20
Abstract: A rubbish dump and a process for making it are distinguished by the compacted layering of previously microbially conversion-stabilised rotted material of the most widely differing origins, hereinafter referred to as stable compost.
Patent DE-4016948-A1 (DE)
Title: Contactless magnetic guidance system esp. for sliding door - exploits mutual repulsion of like poles of radial permanent magnets at edges of mouldings and guide
Inventor: JUST FRANC
IPC: E05F15/60
Filed: 1990-05-25
Abstract: The leaf (1) of the door is hung from a vertical supporting plate (2) which slides in a guide (3) having a stationary housing (4) with a slot (5) in its underside. Sliding pieces (7) on the plate (2) move between rails (6) on either side of the slot (5), without contact. Permanently magnetised bars (8a-8d) are ranged around part of the circumference of a tubular passage in which a cylindrical moulding (12) on top of the plate (2) carries co-operative magnets (11a-11d) corresponding spaced. The door may be driven by an electric linear motor (15). ADVANTAGE - Simple structure. Generates very little noise with effective damping of all movements by eddy-current braking.
Patent DE-4018944-A1 (DE)
Title: Heat pump or refrigerating machine - has three pistons connected by triangular linking element
Inventor: KRAUCH HELMUT PROF DR RER NAT
IPC: F16H21/34
Filed: 1990-06-13
Abstract: The thermal machine (1) can be used either as a heat pump or as a refrigerating machine. It has three cylinders with their axes inclined at 60 deg. to each other and with a piston operating in each cylinderr. The machine has no shaft but each piston is connected to a common linking element by a connecting rod. This linking element is in the form of an equilateral triangle with a crankpin at each corner which forms a bearing for a connecting rod. When any one piston is at a top or bottom dead centre position the drive is maintained by the other two pistons. USE - Heat pumps.
Patent DE-4019276-A1 (DE)
Title: Mirror drive for monocular reflex camera
Inventor: HEERKLOTZ GUENTER
IPC: G03B19/12
Filed: 1990-06-16
Abstract: A first mirror holder (5) carries a reflex viewing mirror (6) having an at least partly transparent zone, the pivot axis of which is disposed on a pivoting lever (2) rotatably mounted at a fixed location in the camera casing. A second mirror holder (10) carries a measuring mirror (11) and is pivotally journalled in such a manner that the measuring mirror, in the observation position of the mirror drive, deflects the light beams passing through the transparent zone of the viewing mirror onto a photoelectric measuring cell. The photographic position it bears against the rear face of the viewing mirror.  Adjustable contact elements are provided for aligning the viewing mirror and the measuring mirror in the observation position. The second mirror holder (10) is rotatably journalled independently from the first mirror holder (5) about a journal (9) provided on the pivoting lever (2). It can be tensioned, by a spring (14), against an adjustably mounted contact element (16;23).
Patent DE-4020316-A1 (DE)
Title: Flexible, wear-resistant coatings for carbonate], metal, etc. - by reaction of water with epoxy Gp.-contg. hydrolysable silane(s), esp. gamma-glycidyl-oxy-propyl-tri:methoxy-silane
Inventor: ARPAC ERTUGRUL
IPC: C09D183/14
Filed: 1990-06-26
Abstract: A process for the prodn. of paint (I), by reaction of hydrolysable silanes of formula R4Si (II) and/or corresp. oligomeric hydrolysis prods. thereof at not above 50 deg.C. with water in the mol. ratio water:(hydrolysable gps.) = (1:1)-(0.4:1); R = hydrolysable gps. (A), OH gps. or non-hydrolysable gps. (B); at least some of the (B) gps. contain an epoxide ring, and mol. ratio (A gps.):(epoxy gps.) = (6:1)-(0.5:1). Also claimed are paints (I) as such. Pref. (II) is a glycidyloxyalkyl- trialkoxysilane, esp. gamma-glycidyloxypropyl- trimethylsilane (IIA); mol. ratio (A gps.):(epoxy gps.) = (4.5:1)-(1.5:1), pref. (3.5:1)-(2.5:1), and mol. ratio (water):(B gps.) = (0.7:1)-(0.45:1), pref. (0.6:1)-(0.5:1); reaction is carried out in the presence of an acid or basic catalyst which causes no ring-opening under these conditions, pref. H.Hal (esp. HCl), carboxylic acid (esp. HCOOH or ACOH). Also claimed is a process for coating substrates (esp. polycarbonate, poly(meth)acrylate, rubbery polymers, PET or metals, partic. Al or Cu), by applying (I) and hardening the coating by heat or irradiation (opt. with added catalyst). %  USE/ADVANTAGE - Provides an abrasion resistant coating material which is more flexible than prior - art polysiloxane-based coatings and is therefore suitable for coating flexible moulded prods., e.g. film; the coatings obtd. also have good adhesion and excellent optical properties, and are resistant to humidity and stress cracking.
Patent DE-4026003-A1 (DE)
Title: Belt drive with automatic speed regulation - has effective diameter of driven pulley varied by centrifugal force
Inventor: HONG YEH-SUN
IPC: F16H61/662
Filed: 1990-08-16
Abstract: The belt drive consists of a driving shaft (1) with a driving pulley (2), a belt (4), a driven pulley (10) and driven shaft (3). The driven pulley consists of two conical discs (11,12). One disc (11) is fixed directly to the shaft (3). The other disc (12) can slide axially on the shaft and slides on pins (17) projecting from the first disc. The shaft (3) carries a third disc (13) with a curved inner face (13a). Balls (14) fitted between this outer disc and the pulley disc (12) move radially outwards under the influence of centrifugal force and press the disc towards the other disc causing the belt to move radially outwards. The effective diameter of the pulley is thus increased and the speed of rotation of the shaft reduced, thus forming a speed control device.
Patent DE-4027563-A1 (DE)
Inventor: THIEL RUDOLF
IPC: F16D65/095
Filed: 1990-08-31
Abstract: The invention concerns the mounting, on an externally fitted brake pad (4), of the floating caliper (7) of a partly lined disc brake. To this end, two support elements (5, 6) on the sides edges of the brake pad (4) have extension pieces (8, 9) which engage in two longitudinal grooves (14, 15) in the caliper (7), the internal surfaces of the extension pieces resting against the surfaces of the groove. To give it sufficient rigidity, the floating caliper (7) proposed has the maximum possible body width and, since it is mounted in the grooves (14, 15) on the brake pad (4) by means of the extension pieces (8, 9) on the support elements (5, 6), it is unaffected by vibration, thus ensuring that it cannot come out of its mounting and jam, whatever position the brake is fitted in, even if the brake is fitted behind the axle of a vehicle wheel, for instance.
Patent DE-4027581-A1 (DE)
Title: Continuously processing animal excrement esp. liq. manure - by mechanical sepn. of solid and liq., addn. of flocculant, precipitant and reactant to liq., and then flotation
Inventor: FINKEN HEINZ DIPL CHEM DR
IPC: C05F3/00
Filed: 1990-08-31
Abstract: During the process comprising mechanical sepn. into solids and liqs. and clarification of the liq. in a flotation appts., components of the sepd. liq. are flocculated, pptd. and degassed by addn. of flocculants, precipitants and reactants, before the liq. enters the flotation appts. ADVANTAGE - Undissolved and dissolved components are sepd., irrespective of dia. and specific wt., and of the type and dry matter content of the liq. manure. Addn. of aids is reduced to a min., and use of ecologically acceptable additives means that the prods. can be used as liq. and solid fertilisers. The liq. fertiliser has little smell, penetrates the soil easily, emits no NH3, does not attack plants, can be used with a wide range of vegetation, gives uniform distribution of nutrients immediately available to the plants, can be applied easily in precise amt., and gives no problems with water contamination. The solid fertiliser is a transportable N fertiliser with slow release affect, is rich in nutrients and humic acids, improves the structure, esp. as a substitute for peat, has high hydrocarbon content and C/N ratio of about 30:1, and can be composted
Patent DE-4029875-A1 (DE)
Inventor: GRADL REINHARD DIPL CHEM DR
IPC: C07C41/46
Filed: 1990-09-21
Abstract: A process for inhibiting and destroying peroxides in dialkyl ethers having the general formula R1OR2 in which R1 and R2 are alkyl groups having 1 to 6 carbon atoms, which comprises adding, as inhibitor, a quaternary alkyl iodide of the general formula [CH3alk3P]I to the dialkyl ethers.
Patent DE-4029879-A1 (DE)
Title: Method for using organic wastes contg. macromolecules
Inventor: MENGES GEORG PROF DR ING
IPC: C10B53/07
Filed: 1990-09-21
Abstract: (+21.9.90,6.12.90(2), 21.9.90,19.12.90, 6.3.91-DE-029880,038896/7, 029879,040672,107046). Macromolecules contg. organic -wastes are utilised by decomposing by warming to more than 150 deg.C, pref. under pressure or by shearing to liq. and gaseous components which can then be utilised. An appts. for carrying out the process comprises a melt vessel with a grate and a collecting vessel underneath for collecting the melt. It also has a pump and a means to treat the liq. and gaseous components further, pref. a mixing chamber.
Patent DE-4033860-A1 (DE)
Inventor: JORDAN MARTIN
IPC: G01P1/00
Filed: 1990-10-24
Abstract: Disclosed is a mounting designed to position a sensor (12) a given precise distance (x) from an object (10). The device has a spring (28) which biases the sensor (12) towards the object, plus a mobile actuator element (24) which moves the sensor (12) against the bias of the spring (28) between first and second positions in such a way that the sensor is brought to a position the required distance (x) from the object (10).
Patent DE-4037346-A1 (DE)
Title: Executing and evaluating electron microscopic examinations - ascertaining relative position of crystal coordinate system(s) w.r.t. electron microscopic relevant coordinate system
Inventor: MOECK PETER
IPC: G01N23/20
Filed: 1990-11-20
Abstract: The method is based on the combined application of K-lines (Kikuck, Coates, electron back-scatter lines etc) imaging and other electron microscopic imaging or signals and used directly during work at the microscope and pref. controlled by a computer. At least two easily identifiable K line poles are automatically or manually set sequentially for each crystal to be  investigated directly before the actual electron microscopic examinations by means of crystal rotation with goniometer for accurate placing on the centrum or consistently on the same spot of the screen of the microscope. USE - Scientific investigation of material by means of crystalline samples for transmission, raster-transmission or raster electron microscopes.
Patent DE-4037736-A1 (DE)
Title: Dipstick for enzyme immunoassay not requiring washing step - includes test zone with capture reagent immobilised in specific pattern and able to form sandwich complex with analyte and enzyme labelled a
Inventor: KANG JEMO
IPC: G01N33/543
Filed: 1990-11-27
Abstract: Dipstick for immunoassays comprises a base (12); at least one zone (10) on the base and at least one immobilised, immunologically active component (I) distributed in zone (10) in the form of a specific symbol. (I) can bind an enzyme-labelled antibody (Pb), via a target analyte (A), so as to form a sandwich complex on zone (10). This complex, after contact with a suitable enzyme substrate, will produce a difference  between the specified symbol and the rest of the test zone which can be detected by the eye. Also new is a kit comprising, apart from the dipstick, a soln. of Ab and a soln. of substrate which generates an insoluble coloured prod. in contact with Ab. USE/ADVANTAGE - This device obviates the need for a washing step generally required in dipstick assays, and can be used successfully by relatively untrained personnel. It can be used to assay antibodies, antigens or haptens, e.g. human chlorionic gonadotropin (HCG), luteinising hormone and alpha-foetoprotein.
Patent DE-4038532-A1 (DE)
Title: Chair with non-upholstered reverse sides - has textured surface areas remote from user side and uses studs to create textured surface
Inventor: SCHULZE-BAHR WERNER
IPC: A47C7/00
Filed: 1990-12-03
Abstract: The visible surfaces of the chair on the side remote from the user are not upholstered but have an at least partially structured or textured surface (7) such as studded or ribbed. The backrest can have a full-length surface texture (7) at the back. The stud elements forming the textured surface can be arranged in grid patterns. Where the visible surfaces are made from wood the surface structure can be press-formed in a heatable pressing mould. ADVANTAGE - The reverse side of the chair can be made of low-grade material yet still have an acceptable appearance.
Patent DE-4042306-A1 (DE)
Title: Dispersal point break-before-make changeover connector - uses sliding U-piece bearing against spring contacts to test operation
Inventor: BURMEISTER KLAUS-DIETER
IPC: H01R13/66
Filed: 1990-12-31
Abstract: The break-before-make connector is tested using a sliding inverted U-piece (61) of insulating material bearing against the spring contacts (1,2,11,21). Each side of the U-piece has a conducting strip (63), also of U-shape. In one position contacts 1 and 2 are connected, as are contacts 11 and 12. When the U-piece is pushed down, the connections are respectively between contacts 2 and 21 and between contacts 1 and 11. USE/ADVANTAGE - For use in telecommunications equipment. Allows reliable testing.
Patent DE-4100799-A1 (DE)
Title: Method of liq. purificn. esp. drinking water - before filtration, liq. passes through electric field of 1000 to 2000 volts, which kills microorganisms and agglomerates impurities
Inventor: WITTICH PAUL
IPC: C02F1/50
Filed: 1991-01-12
Abstract: In a procedure for purificn. of liquids, microscopic particles of different materials are conglomerated and/or agglomerated by a force field produced in the liquid so that the resulting particles are of greater than a required size, the single-cell and/or multi-cell organisms in the liquid are killed. The force field agglomerates particles of different substances of the same type. These particles may be crystals, dust particles, metals and/or microorganisms. The force is produced by an electric field of 1,000 to 20,000 volts DC through which the liquid flows. After this treatment, the liquid is passed through a filter. USE/ADVANTAGE - Used for purifying and sterilising liquids, esp. water. A simple and low-cost appts. and procedure are used to effectively purify the liquid by mechanical means. The use of chemicals or other additives is avoided.
Patent DE-4101844-A1 (DE)
Title: Short stroke actuating piston for clutches, brakes, etc. - is supported in cylinder by fixed elastomer seals which also provide return force on piston
Inventor: NAUMANN WOLFGANG
IPC: F16D25/0638
Filed: 1991-01-23
Abstract: In a typical arrangement an aperture (2) in the housing wall (1) has a lining ring (3) cemented in position (41,42). A second ring (7) of similar section constitutes the actuating piston. Between the housing lines and actuating piston is an annular chamber (6) which is supplied with pressurised fluid through hole (13). Two fixed elsatomer rings (81,82) secured by adhesive or vulcanising, seal off the annular chamber (6) and support the piston concentric with the lines. The width of the rings is at least twice and the thickness is at least one third the piston stroke. A bearing and plunger (11,12) transmit the piston movement to the clutch or similar device when pressurised fluid is admitted to the chamber (6). The axial return force when the perssure is released is provided by the elastomer seals. ADVANTAGE - Fast reaction time with low hysteresis. No return spring is required, giving compact design with few parts. No leakage. Simple to produce and assemble.
Patent DE-4111662-A1 (DE)
Title: Agricultural gravitation pump - is of rotatable double float construction with two opposite feed pumps
IPC: F03B17/00
Filed: 1991-04-10
Abstract: The main energy consumption of the pump is economically utilised by the gravitation force of water, relative to an air-filled container, and converted into mechanical movement. The pump is of double-float construction, with two opposite water feed pumps. The construction may be rotated via running rollers on guide rails. Roller holders, main shaft tube, and drum are fastened to each other, and form a single unit. The feed pumps are located on a divided main tube between the guide rails. The tube has built-in non-return valves. USE/ADVANTAGE - 80 per cent reduction in operational costs. Irrigation of agricultural areas in dry countries.