baber/WOPTO huggingface dataset:
Patent DE-2737813-A1 (DE)
Title: Graduated fibre optical conductor - has regions of variable doping to produce refractive index of asymmetrical form w.r.t. central axis
Inventor: STEINER KARL-HEINZ DR ING
IPC: G02B6/028
Filed: 1977-08-22
Abstract: The optical wave guide is in the form of an optical fibre with a graduated refractive indese defined by an algebraic equation of the form:-n(R)/n1 = 1 - 1/2 R2 - 1/4 square root 1/2 R3 where n is the refractive indese at effective radius R, n1 is the refractive index at the centre of the fibre and R =square root (alpha). r, where (alpha) is a profile coefficient and r is the geometrical radius rector. In one form of the embodiment, the fibre has a cylindrical shape with one half lightly doped and the other half heavily doped. A graph of the refractive index versus radius thus has an asymmetrical parabolic form and enables the optical waves to follow helical paths along the fibre.
Patent DE-2742215-A1 (DE)
Title: Versatile playpen and cot support - is wheel-shaped with padding for aiding crawling by allowing rotation through weight displacement
Inventor: KEIDERLING GEORG
IPC: A47D13/04
Filed: 1977-09-20
Abstract: The multi-purpose playpen unit is in the form of a wheel with suitable padding. There are pictures or toys detachably fitted so that as one toy is removed the child moves forward to the next toy thereby causing the wheel to rotate through weight displacement thus encouraging the child to crawl. The two outer sides can be opened and closed by suitable fitments to provide a fully enclosed playpen when required, with these fitments being lined with suitable mesh material or the like. A lower section of the wheel can be unfolded to allow the wheel to be fixed in one position wherein a cot mattress can be fitted if required.
Patent DE-2747645-A1 (DE)
Title: Mono- or di-carboxylic acid ester and ammonium sulphate prepn. - using ammonium bi-sulphate free from the corresp. amide using only half the sulphuric acid normally used
Inventor: SCHOENBECK RUPERT DR
IPC: C07C67/20
Filed: 1977-10-24
Abstract: Prepn. of mono or dicarboxylic acid esters with aliphatic alcohols and ammonium sulphate comprises reacting at elevated temp. the corresp. acid amides with an alcohol, and sulphur acid and/or ammonium bisulphate using 0.3-0.6 mole sulphuric acid or 0.6-1.2 mole of bisulphate and 1-6 moles of alcohol per equiv. of acid amide. The process uses much less sulphuric acid than the normal, and it can be carried out using ammonium bisulphate, usually regarded as an undesirable waste by-product, to give the esters and the ammonium sulphate free of bisulphate.
Patent DE-2749057-A1 (DE)
Title: Accumulator battery electrode block assembly method - sorts electrodes according to thickness and groups plus and minus electrodes into required groups
Inventor: KOLOSOV IVAN ALEKSANDROVITSCH
IPC: B07C5/36
Filed: 1977-11-02
Abstract: The electrode groups are stacked according to thickness, packaging in insulating separation material and assorting of plus and minus electrodes in a given sequence. Prior to the sequencing of electrodes the electrodes are sorted in an uneven number of groups, i.e. thin, medium, and thick ones. In the grouping of the electrodes the two middle ones form the sum thickness of the side ones, i.e. a thin and a thick one. The stacks of the middle thickness electrodes are arranged sequentially with the same polarity, while the stacks of the equidistant thin and thick electrodes are only arranged in pairs. Then an electrode from each stack is picked up and shifted into a horizontal position. Subsequently such electrodes are formed into a block of given thickness.
Patent DE-2750512-A1 (DE)
Title: Variable geometry steel sail - is tensioned in extending frame by cables and has flexible metal backing
Inventor: HABERL JOSEF
IPC: B63H9/06
Filed: 1977-11-11
Abstract: The variable geometry steel sail has the sail in flexible metal sections tensioned by cables strung from the central mast. The assembly turns on bearings to adjust to the wind direction. The system is designed to provide extra thrust for large ships, especially freighters and the height and shape of the sail is adjusted by servo drives.
Patent DE-2751898-A1 (DE)
Title: Telephone PBX system with main and secondary exchanges - has identification units in latter whose signals are transmitted to main exchange like dialling signals
Inventor: HUTT HANS
IPC: H04M7/14
Filed: 1977-11-21
Abstract: The secondary exchanges of the PBX system have identification units whose results are transmitted to the corresponding main exchange. Identification results are transmitted in the code used for dialling signals, over the channels for these dialling signals using the transmitting and receiving equipment provided for dialling. Circuits in the secondary exchange which evaluate dialling information from a caller connect either the register which receives the dialling information or a store receiving the identification result to the dialling transmitter according to type of traffic.
Patent DE-2755574-A1 (DE)
Title: Geyser system drier for granular material - has vertical screw in vessel with perforations and bottom swirler blades
Inventor: ARADI EMIL DIPL ING
IPC: F26B9/08
Filed: 1977-12-09
Abstract: The pulverised, granular material, solutions, suspension and pasty materials are brought into contact with each other or with a gas for their drying. The geyser type system used requires relatively little blowing energy. Sticky materials and materials with wide grain size range can be processed. The vessel (1) of the plant has vertical transporter screw (5), arranged within a vertical channel (3). The housing within which the screw and the channel are arranged, has perforated bottom (11) and laterial air supply channels (8, 10). The vertical transporter screw (5) does not project beyond the top surface of the material charge (2). This screw is driven by motor (12) at the bottom of the unit. The air enters the process vessel through blading which imparts it a swirling motion.
Patent DE-2756380-A1 (DE)
Title: Surface treatment of blanks or semi-finished prods. - using helical streams of water for cleaning or degreasing the workpieces
IPC: C23G5/00
Filed: 1977-12-17
Abstract: The treatment uses streams of water following a rotary helical path while flowing round the workpiece; and the helical path of the water is combined with relative axial movement of the workpiece w.r.t. the helix of water. The water treatment is pref. followed by spraying the workpieces with a solvent or a lacquer. In the case of flat workpieces, the travelling helix of water pref. follows an elliptical path. The process can be used e.g. for the cleaning and degreasing of metal strip, and is an extension of the process and plant described in DT 2341604. The water cleaning station can be followed by lacquering and then a drying station using hot air.
Patent DE-2801990-A1 (DE)
Title: Reducing the shrinkage of cast polyamide mouldings - by adding an inorganic filler to the molten activated lactam monomer casting mixt.
Inventor: ANSELMENT WOLFGANG DIPL CHEM D
IPC: C08K3/013
Filed: 1978-01-18
Abstract: The shrinkage of cast polyamide mouldings made by anionic activated polymerisation of lactams is reduced by mixing the original melt of monomeric caprolactam, catalyst and activator with a filler. Suitable fillers are e.g. magnesium-, aluminium- or magnesium-aluminium, silicates, perlite, glass fibres, glass microspheres of glass microballoons. Pref. compsns. contain 15-25%, esp. 22 wt.% of a filler comprising glass microballoons with an average particle size of 80 mu and a density of 0.34g/cm3. Addn. of the filler gives mouldings with reduced shrinkage and greater precision. Glass microsphere fillers neither sink nor float and, besides high moulding tolerance, give mouldings of lower density and improve contour precision.
Patent DE-2802199-A1 (DE)
Title: Extraction of isobutene from 4C hydrocarbon mixts. - by reaction with isobutanol and decomposition of tert. ether formed
Inventor: BRUNNER ERWIN DIPL PHYS DR
IPC: C07C7/148
Filed: 1978-01-19
Abstract: Isobutene is extracted from 4C hyrocarbon mixts. by reaction with isobutanol in presence of an acid condensing agent, sepn. of the tert. ether formed and decomposition at elevated temp. in presence of an acid catalyst. Used for treatment of 4C fractions from ethylene plants or butane/butene dehydrogenation plants to obtain isobutene-free raffinates for prodn. of sec. butanol, MEK, butene-1, octenene or maleic anhydride. No previous extn. of butadiene from the 4C fraction is required. The isobutanol forms no azeotrope with the 4C hydocarbons (as occurs by use of methanol), so that sepn. of the ether by simple fractionation gives an almost alcohol-free 4C raffinate without water-washing, contg. 50 (20) esp. =5 ppm isobutanol. Isobutene is obtd. in high purity and yield.
Patent DE-2813683-A1 (DE)
Title: Holder for circuit boards in computer - has row of hinged sections each holding rear edge of one board for ease of maintenance
Inventor: HEGER DIRK DIPL ING
IPC: H05K7/16
Filed: 1978-03-30
Abstract: The holder, for circuit boards, in computers, has a row of sections (8) hinged together and each carrying a circuit board (7). The boards are electrically connected by flexible flat cables. The front edges of the boards have clasps (9) that hold them together into a rigid assembly. One end of the row of hinged sections is pivoted (13) to the holders frame whilst the other end is free to travel along a slot (14) in the frame, when one or more of the clasps is undone. The arrangement permits service work to be carried out without interrupting operation.
Patent DE-2814628-A1 (DE)
Title: Cine projector for various film sizes - has claw film transport and film guide through gate as demountable unit and registering adjusters
Inventor: RIEDEL WOLFGANG
IPC: G03B1/42
Filed: 1978-04-05
Abstract: A Cine projector is such that the film guide and the transport claw mechanism form a completely interchangeable unit mounted inside the projector housing. This enables the projector to show various gauge films. The claw assembly (6) in the projector gate is mounted on a demountable plate assembly (4). The claw and film guide assembly is adjustable by a cam (3) etc. to place it, and therefore the film, in correct register w.r.t. the lens (10).
Patent DE-2817213-A1 (DE)
Title: Pile web machine cutting knife sharpening system - has upper and lower resiliently mounted sharpening wheels in path of knife
Inventor: MAASSEN HEINZ
IPC: B24B3/36
Filed: 1978-04-20
Abstract: The cutting knife for a web machine such as a web pile machines has a sharpening system using two disc shaped sharpening wheels (11a, b). As the knife (5) is pulled along a straight path by a cable (4), its edge passes the first wheel (11b) then the second wheel (11a) in turn, tangentially to their periphery. The periphery of the first wheel tapers inwards and downwards, while that of the second wheel tapers inwards and upwards. Thus opposite sides of the knife are sharpened at the correct slope. The sharpening action is assisted by springs (16a, 16b), mounted on the vertical spindles (13a, b) carrying the wheels enabling them to move resiliently downwards and upwards respectively.
Patent DE-2824443-A1 (DE)
Inventor: DIESSEL PAUL ING GRAD
IPC: C11D7/14
Filed: 1978-06-03
Abstract: A storage-stable, pourable and pumpable aqueous suspension which contains finely divided water-insoluble sodium aluminum silicate and one or more hydroxyl-free saturated or unsaturated aliphatic dicarboxylic acids of 3 to 10 carbon atoms, or their alkali metal salts, as a stabilizer and flow improver.
Patent DE-2828729-A1 (DE)
Title: Motor car seat structure - consists of tubular metal frame with springs between back and front members with cross pieces
Inventor: BRANDOLI LUIGI
IPC: A47C7/18
Filed: 1978-06-30
Abstract: The motor-car seat structure consists of a frame (1-6) all round made of metal tubing, and enclosed to form a ring. Between the front (1) and back (2) sides of the frame are hooked a number of springs (7). Each spring (7) has a first part at each end, facing downwards and with a cross-piece (8) underneath the upper plane limit of the frame. The cross-pieces (8) form anchorage points for the inner upholstery of the seat. Metal wire pieces (12) act as fixtures for the inner stuffing where the cross-pieces are inadequate. Attached to the frame are hinges fixing the seat to the vehicle floor.
Patent DE-2833935-A1 (DE)
Title: Joining strips into continuous length for stamping operations - by pressure resistance welding profiled strip ends together
Inventor: LINDNER KURT
IPC: B23P15/40
Filed: 1978-08-02
Abstract: A tooth-shaped profile is stamped in the end of one strip; and the teeth are then joined to the smooth end of the other strip, esp. via resistance welding. Only the tips of the teeth stamped in the end of one strip are pref. used to make the weld, i.e. so ther is little or no increase in strip thickness at the welded joint. Due to the absence of a major increase in strip thickness at the joint, no difficulty arises in feeding the continuous strip into the stamping tools. Useful in the continuous, automatic stamping of components from strip.
Patent DE-2848352-A1 (DE)
Title: Driving wheel of stepped switch gear - has pins fitting into driven grooves with cylindrical parts arranged around driving and driven wheels
Inventor: ZOELL DIETER
IPC: F16H27/06
Filed: 1978-11-08
Abstract: The stepped switch gear produces rotary movements and retention intervals and involves the driving wheel having at least one concentric cylinder part which produces such intervals by engaging in a hollow cylinder section concavely arranged and firmly connected to the driven wheel. The driving wheel (15) has at least two axially parallel drive pins (12, 13) which are accommodated in at least two grooves (6, 10) in the driven wheel. One or more cylinder parts (4) are arranged symmetrically or on-symmetrically around the driving wheel (15) and likewise hollow cylindrical parts (5, 9) around the driven wheel.
Patent DE-2852998-A1 (DE)
Title: Universal handle for all automatically opening umbrellas - has insert with release button lining handle grip to shaft containing release mechanism
Inventor: WEBER HEINZ
IPC: A45B9/02
Filed: 1978-12-07
Abstract: The actual handle is comprised of a grip part (1b) and an insert (1a) which can be fixedly connected to the grip (1b) and can be displaced and fixed on the umbrella shaft. The insert (1a) contains the press button release (2) which is detachably guided in the insert in a radial opening (1c) which is closed at the side when the grip (1b) is fitted. The handle can then be fitted to any type of umbrella and where there is any gap between the press button and the release mechanisms in the umbrella shaft only the press button need be exchanged for a thicker, thinner, deeper or flatter one.
Patent DE-2855746-A1 (DE)
Inventor: WOLFER PETER
IPC: G01L1/16
Filed: 1978-12-22
Abstract: A piezoelectric strain/force transducer is described, which is attached preferably by only one locking screw to a test specimen or machine part. The force transmitting member of the transducer comprises two bearing surfaces at a distance apart, which bear frictionally on the surface of the machine part and experience a change in spacing in the case of a change in length of the machine part. Due to this, a resilient member, which can be adapted to a desired sensitivity of the gauge, is tensioned and a set of piezoelectric plates held under precompression in the force-transmitting member are subjected to a corresponding shearing force. The piezoelectric plates are cut or polarized so that they respond piezoelectrically solely to shearing forces. The resulting piezoelectric charge is a measurement of the strain or mechanical stress of the machine part and can be used for monitoring or controlling machines or components, in particular those which are subjected to cyclic loads.
Patent DE-2900462-A1 (DE)
Title: Ignition control system for IC engine - has ROM allowing adaptation to other engine characteristics
Inventor: SCHMIDT GUENTHER DIPL ING DR
IPC: F02P5/15
Filed: 1979-01-08
Abstract: The ignition control system has a pulse generator (10) couple to the engine's crankshaft generating numerous pulses per revolution and reference market singles dependent in number on the number of cylinders. The marker signals trigger a timing circuit (20). A signal sequence is counted by a counter (18) during the timing circuit's hold time. The frequency of this sequence is controlled via a r.o.m. (28) by at least one parameter of the engine in accordance with a freely chosen function. After the hold time has ended, the count attained by the counter is counted ut by ulses from the generator. At the end of counting out, a control signal is produced that initiates ignition.
Patent DE-2900700-A1 (DE)
Title: Connector with two similar interdigitating parts - with each part having contact on one side of each finger, except one outer finger
Inventor: JOHANSSON OVE
IPC: H01R13/44
Filed: 1979-01-10
Abstract: The two parts of the coupling are of similar shape. The insulating case of each part has a number of projecting fingers, all except one having a contact element on its surface that faces the one finger that does not have a contact. The spaces between the fingers are equivalent to the thickness of a finger, so that the fingers of one part can fit into the spaces of the other part.
Patent DE-2901742-A1 (DE)
Title: Contactless shaft seal in partition wall - has circulating fluid seal groove within flange facing high pressure side
Inventor: YOSHIOKA MASAHIRO
IPC: F16J15/42
Filed: 1979-01-17
Abstract: The contactless shaft seal ensures sealing between a wall and shaft over a wide speed range. The wall separates two chambers under different pressures. The wall (1) separates high and low pressure chambers. The wall has a seat on the high pressure side with a flat face (1a) which faces the flat rim face (5c) of the flange (5c) of the flange (5) keyed on the shaft by an integral sleeve. The flange rests against the shoulder of the shaft. Gaps (G1, G2) between flange and wall (1) are open to the high pressure side. The flange has an internal groove (9) for forming a seal with the circulating fluid.
Patent DE-2910967-A1 (DE)
Title: Under-ceiling double C=profile support rail - has anchor hanger and fixture clamping slit in top and bottom gripping openings
Inventor: RICHTER REINHOLD DIPL ING
IPC: E04B9/06
Filed: 1979-03-21
Abstract: The system is used as part of the structure of a building. Two interfacing parallel sheet metal C-profile pieces are joined together in the carrier for a underceiling, esp. spanning wide areas. The two pieces are arranged with stems horizontal and directly joined. The top piece is open upwards, and has inward-bent edges engaged from behind by an anchor hanger hung into it. The other is open downwards with edges bent inwards to form a clamping slit for ceiling fixture elements.
Patent DE-2914105-A1 (DE)
Title: Plastic cylinder head gasket - with areas around holes having higher durability through greater degree of cure of impregnant
Inventor: ZERFASS HANS RAINER DIPL CHEM
IPC: F16J15/12
Filed: 1979-04-07
Abstract: Flat gasket in soft material, partic. for cylinder heads in i.c. engines, consists of a soft sheet (w/without metal reinforcement), with holes for the combustion chamber, fixing bolts, cooling and lubricating systems, plus polymerising impregnant, this impregnant being cured further in the areas round all or part of the holes than elsewhere. Areas round holes have good resistance to temp., combustion gases, lubricant, coolant, and also to compression; simple and cheap to produce.
Patent DE-2915581-A1 (DE)
Title: Toilet flushing cistern water saving system - has press knobs and outflow valves providing continuous discharge volume adjustment
Inventor: METTIN CHRISTIAN
IPC: E03D1/14
Filed: 1979-04-18
Abstract: In an economy system applicable to any water closet, discharge of water can be affected by operation of buttons, and opening and closing of outflow valves, providing different selected max. and min. volumes. Discharge can be continuously regulated, according to needs. There are pref. three buttons, and two outflow valves, one above the other, with float for each, and pref. with an intervening partition in the cistern. Valves and lid may be easily fitted to an existing installation, without skilled labour. This combines adequate hygiene with water saving.
Patent DE-2916494-A1 (DE)
Title: Electrosensitive matrix film for making stencils - has outer coating of low conductivity produced from soln. of binder mixed with conductor powder in melt (NL 30.10.79)
Inventor: SHIMOMUKAI SEIICHI
IPC: B41N1/24
Filed: 1979-04-24
Abstract: Electrosensitive matrix film has (A) a substrate film with (B) a coating of good electrical conductivity and then (C) a coating of low electrical conductivity. (C) is produced by mixing a film-fomring polymer (I) and a finely-divided electrically conductive material (II) in the melt and dissolving the mist. in a solvent (III) for (I), giving a soln. which is used for coating. The matrix film is specified for use as matrix or stencil for duplicating recording. It gives satisfactory results and copy density and is durable. Suitable (A) is (un)coated paper or a polymer film; and (I) is PVC, vinyl chloride copolymer, PVAc, copolymer, polyethylene, polypropylene, (co)polystyrene, PVd C vinylidene chloride, polycarbonate, polyesters, polyamides, cellulose acetate and/or cellulose acetate-butyrate.
Patent DE-2918433-A1 (DE)
Title: Guide for threading plastics film into processing machines - is block with contoured end which guides film into operating slot
IPC: B65H23/00
Filed: 1979-05-08
Abstract: Guide consists of a solid surrounding block and a cut block at the end of the processing tools which are attached to them. The film passes quickly and in a straight line through the guide which moves it into the operating position. Useful e.g. in printing machines or corona discharge machines etc. Simple and cheap way of threading without using equipment to move the processing tools.
Patent DE-2922046-A1 (DE)
Title: Wall or furniture panel mfr. from rough timber - involves cutting wood block to size after drying in high frequency zone
Inventor: FASCHINGBAUER JOSEF
IPC: E04F13/10
Filed: 1979-05-30
Abstract: Wooden panels cut to size and stabilised by drying are arranged in a row on a support element and glued on it. These are used for prodn. of wooden, esp. wall or furniture units. A wood block with plan-parallel end faces is dried in a microwave oven under vacuum. It is then cut to the production size of slices and individual slices (15) of predetermined thickness are cut off it, pref. 0.5-10 mm. thick. Insertion leaves (19) may be glued in the spaces between polygonal slices, and these can be of another type of wood. Drying may take place in a vacuum.
Patent DE-2929419-A1 (DE)
Title: Exhaust driven turbocharger for IC engine - has by=pass valve between compressor and turbine opened by suction at turbine inlet
Inventor: INDRA FRITZ DR ING
IPC: F02B37/16
Filed: 1979-07-20
Abstract: The turbocharger has a centrifugal compressor (12) delivering air to the engine which is directly coupled to a turbine (22) driven by the exhaust gases from the engine (6). There is a valve (28) between the outlet of the compressor and the inlet of the turbine. When the compressor pressure rises above a preset value it opens the valve against a spring (32). A chamber (34) containing the spring has a connection (36) to the turbine inlet. The opening force is thus increased if the turbine inlet pressure drops. This ensures prompt opening of the valve as soon as flow conditions require such opening.