baber/WOPTO huggingface dataset:
Patent DE-3940917-A1 (DE)
Title: Friction coupling with flywheel and pressure plate - has membrane spring with ring cylinder and two bearings on tongue ends
Inventor: GROSSPIETSCH WOLFGANG DIPL ING
IPC: F16D25/04
Filed: 1989-12-12
Abstract: The friction coupling consists of a flywheel (2) with a pressure-plate (3). A membrane-spring (7) exerts compressive force for tightening the friction lining of a coupling-disc (6). A hydraulic control has a ring-cylinder (22) which is axially supported by two pressure-bearings (23, 24) on the tongue-ends (17) of the membrane spring (7) and on an axially fixed component. The coupling housing (9, 10, 11) is axially supported and has an inner diameter matching that of the  membrane spring's (7) tongues (18, 17). USE/ADVANTAGE - The friction coupling has a ring cylinder between the sprung tongue ends of the membrane spring, and a housing part on the same level, to give support free of outward axial force.
Patent DE-3941123-A1 (DE)
Inventor: GRADERT ARNO
IPC: E21C50/00
Filed: 1989-12-13
Abstract: The proposal is for a traction tooth (6) for cutting wheels, like blade wheels, underwater cutting wheels or the like, pivotably arranged in the region of several blades fitted at the periphery of the cutting wheel. The displacement (13) of each traction tooth takes place unilaterally and without any other guide and holding components directly at the back of the appropriate blade. The pivoting axis (8) of the traction tooth can be adjusted in the direction of the resultant cutting speed of the wheel. The traction tooth is in one piece and has a right-angled to acute-angled cross-sectional shape.
Patent DE-4006759-A1 (DE)
Title: Equipment for casting plaster floor - comprises anchoring fillet locating on floor and vertically extending threaded bolts
Inventor: SCHULTE KURT
IPC: E04F21/05
Filed: 1990-03-03
Abstract: The equipment includes an angle piece (3) with a horizontal anchoring leg (19) and a vertical limit leg (20) which is fixed to the basic floor (1). The free longitudinal edges (18) of the horizontal anchoring leg (19) enable the angle piece to be pivotable both vertically and horizontally, and adjustable as to height. The free longitudinal edges of the horizontal anchoring leg are partly enclosed by a clamp piece (12) which by means of nuts (13,14) is vertically adjustable on a threaded bolt (8) standing vertically on the basic floor (10) The threaded bolt is a component of an anchoring fillet (8) and the clamp piece is formed as a two-piece component. The angle piece (3) the clamp piece (12) and a diagonal brace (23) used are all of aluminium, aluminium alloy or plastics. USE - For casting a plaster floor in a building.
Patent DE-4009561-A1 (DE)
Title: New anti-retroviral desoxy:nojirimycin derivs.
Inventor: ROEBEN WOLFGANG DIPL CHEM DR
IPC: C07D211/46
Filed: 1990-03-24
Abstract: Desoxynojirimycin derivs. of formula (I) and their salts are new. R1 = H or upto 10C alkyl, alkenyl or alkadienyl, all opt. substd. by halo, upto 8C alkoxy, 6-10 aryl or aryloxy or CONR6R7. R6, R7 = independently H, upto 8C acyl or alkyl, or phenyl (which may be substd. by upto 8C alkyl or alkoxy, halo or CF3 gp.). R2-R5 = independently H, COR8, 3-8C cycloalkyl (opt. substd. by upto 6C alkyl) or NR6R7, or R2 and R3, R3 and R4 or R4 and R5 together form -(CH2)n-, -C(R9)(R10)- or O(SiR11R12)2-. n = 1 or 2. R8 = upto 30C alkyl, alkenyl or alkadienyl or 6-10C aryl, which is opt. substd. by 1-2 independent halo, COOH or upto 8C alkyl, alkoxy or alkoxycarbonyl gps. R9-R12 = independently upto 8C alkyl or phenyl, which itself may be substd. by upto 8C alkyl. At least one of R2-R5 is not H. (I) may be prepd. e.g. from the correspg. N-substd. nojirimycin cpd. and a cpd. of formula Y-CO-Hal, O(COR8)2 or R13-N=C=O. Y has the same meanings as R2-R5 (but is not H); Hal - halogen, pref. Cl; and R13 = R6 or R7 (but not H). (I) is e.g. N-butenyl-4,6-isopropylidene-nojirimycin.
Patent DE-4010476-A1 (DE)
IPC: F16B31/02
Filed: 1990-03-31
Abstract: A indicating-nut threaded coupling with load-indicating device (1) adapted to be arranged in particular on grouted anchors for mining or the like and in order to obtain a simple solution which is advantageous in use a free space is formed by at least one groove (4) equipped with a fold bottom (5), the groove being arranged in the outer wall (3) of a bushing (2) which extends spaced from the outer surface of the anchor.
Patent DE-4018786-A1 (DE)
IPC: B01D53/38
Filed: 1990-06-12
Abstract: A process and a plant are described for the purification of waste gases of plants for the production of cement clinker, the hot waste gases exiting a preheating zone in a multistage filter zone being initially freed from dust in a first filter stage and then purified in a further filter stage from NHx compounds, heavy metals and trace pollutants, SO2 and NOx. To achieve a particularly effective and economical purification, the waste gases of the preheating zone, prior to the first filter stage, are adjusted to a filter zone intake temperature such that in this first filter stage, in addition to the dust, at least part of the readily volatile polluting elements and polluting compounds are eliminated from the waste gases. 
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Patent DE-4020150-A1 (DE)
Inventor: BRUN ROBERT DR
IPC: G02B27/34
Filed: 1990-06-25
Abstract: The reticle (11) display device has a light source (10) producing said reticle, an imaging lens system (12) and a beam splitter (13) which reflects one part of the light into a viewing beam path and directs the other part onto a two-dimensional photosensor array (18). The actual position of the reticle can be determined from the signals of this array, while a ballistics computer specifies the desired position. Control signals for the continuous movement of the reticle are produced from the desired/actual comparison and simultaneously correspond to the lead and correction angle relative to the optical axis of the viewing beam path. The signals of the photosensor array additionally control the contrast of the reticle with respect to its immediate surroundings. The movement of the reticle is performed by tilting the imaging lens system, displacing the light source or rotating wedges (20) about the optical axis. 
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Patent DE-4022410-A1 (DE)
Title: Magnetic field reversing circuit with coil - couples inductance terminal to supply voltage source pole via third controllable switch
Inventor: ZUCKER FRIEDHELM
IPC: G11B11/105
Filed: 1990-07-13
Abstract: A coil (S) of two series-connected windings (W1,2) has an opposite winding sense. The junction point of the two windings is coupled to a terminal of an inductance (L), and the free terminal (B1) of the first winding (W1) is linked to a reference voltage via a controllable switch (S1), just as the other winding terminal (B2) via second controllable switch (S2). - The other terminal of the inductance is coupled to a pole of a supply voltage source (U) via a third controllable switch (S3), while being linked to the reference potential via a free-wheeling diode (FD). The other voltage source pole lies also at the reference potential. The inductance contains a current sensor (HS), coupled to a control (RG) input.
Patent DE-4033506-A1 (DE)
Title: Underwater installation system for geotextile mats - uses combination pontoon for installation, guidance, and rockfill
Inventor: JOHANNSSEN KARSTEN
IPC: E02D19/18
Filed: 1990-10-21
Abstract: The system is for installing geotextile mats, esp. in inland waterways and shipping canals, where ships are moved past the site at small distances during installation. It uses an installation pontoon and a rockfill pontoon. The geotextile is drawn off a roll, lowered into the water, and then loaded with rockfill. The geotextile length (2) lowered from the bow (3) of a combination pontoon. Via an installation device, it is placed on the canal bottom below the complete rockfill pontoon area towards the stern (4), and then weighted down immediately by the rockfill. The geotextile length are installed across the width of the canal.
Patent DE-4034606-A1 (DE)
Title: Paper sheet alignment feed - has roller spindles in elongated holes in aligning straight edge
Inventor: FISCHER WOLFGANG
IPC: B65H9/16
Filed: 1990-10-31
Abstract: The machine transports and aligns sheets of paper or cardboard on a table, having a guiding straight-edge to which transport rollers are inclined. Vertical elongated holes (4) along the straight-edge (3) accommodate the spindles (5) of pressure heads, which have conveyor rollers (6) on both sides of the straight-edge. Under their own weight or additional pressure on the spindles, these are kept in continuous contact with the transport rollers (2) underneath - or, where sheets are transported at one side of the straight-edge, with the rollers at one side and the sheets (7), of any desired thickness, at the other. ADVANTAGE - More even transport and alignment of sheets with minimum marking of them.
Patent DE-4039576-A1 (DE)
Title: Device for positioning paper sheets in clamp rail - has guide taring clamp rail and clamp mandrel with accommodation groove
Inventor: SCHWALOWSKI KARL
IPC: B42B5/06
Filed: 1990-12-12
Abstract: A guide is provided which accommodates the clamp rail between the arms of which paper sheets (30) are fitted. A clamp mandril (16) has an accommodation groove, and its external die, corresponds to the internal dia. of the clamp rail in the open position. The mandril has a conical front section, the dia. of which is smaller than the internal dia. of the clamp rail in the non-open position. A device is available to draw in the mandril through the clamp rail (12). All the relevant parts are fitted on a frame (18), and also on the frame is a pivotally arranged angle piece (26), the free end of which is formed for gripping the mandril (16). In the front area of the accommodation groove on the mandril is fixed a guide piece (22). USE - To introduce paper sheets between the arms of a clamp rail.
Patent DE-4106520-A1 (DE)
Inventor: DORBATH BERND DR
IPC: C09C3/00
Filed: 1991-03-01
Abstract: The invention relates to purple pigments based on glass frits having an average particle diameter (D50 value) of 0.5 to 50  mu m, whose surface has a coating of essentially 0.05 to 5% by weight, relative to the pigment, of colloidal gold and, if desired, shade-modifying metals from the series consisting of Ag, Cu, Co, Ni, Sn, Ru, Rh, Pd, Os, Ir and Pt in a total weight below that of the gold. 
<??>The new purple pigments can be simply prepared and do not require the calcination step necessary hitherto. The pigments are distinguished by their homogeneity. They can be used for the pigmentation of glazes, enamels, glass stains, decorative colours, plastics, printing inks and finishes.
Patent DE-4109393-A1 (DE)
Title: Operating table for large animals - has restraints for animal's extremities supported on adjustable arms mounted on rails below narrow ends of table
Inventor: BUCHEN RICHARD DR MED
IPC: A61D3/00
Filed: 1991-03-22
Abstract: A new operating table (20) for large animals is characterised by having a rail (30) under one of its edges. A mounting block (32) can be attached to this rail at any point, and carries a support (34) which extends across the table and is fitted with a restraint (36) for one of the limbs of the animal. The length of the support (34) is adjustable, and the support may be in the form of a spring-loaded piston/cylinder unit or a screwed spindle. The support (34) may further have a section (66) extending parallel to the length of the table, in the form of a rail connected at right angles to a lower tubular section (64) and to which a second mounting block (68) can be fixed. The restraint (36) can be locked in any required rotational position relative to the support (34). The restraint contains a support plate and a block of foam (56) with open passages (58). The main rail (30) has a C-shaped profile and the mounting block (32) has a projection (44) which fits into this profile, and a bearing plate (46) which rests against the outside of the rail. The support (34) is located at a distance of 0.5 to 5cm from the narrow side of the table, and the rail (30) is 2 to 5cm below the lower surface of the table. The table is covered by a layer (26) of thermally-weldable polyurethane 2 to 8mm thick. This layer extends over the edges of the table. USE/ADVANTAGE - Used in verterinary clinics where surgical procedures on large animals are performed. Supports for the limbs of the animals are provided without the need for any penetrations in the surface of the table, and the limbs are gripped securely but gently and can be held at any desired location.
Patent DE-4112681-A1 (DE)
Title: Distribution box for optical fibres - has each optical fibre guided in its inner chamber round deflection roller(s)
Inventor: DAHLHAUS WITTICH
IPC: G02B6/44
Filed: 1991-04-18
Abstract: A number of optical fibres are inserted into the distribution box (1) via inlets, and brought out via outlets. Inside the box, each optical fibre (6) is guided over deflection rollers (13). Some rollers are movably guided transversely to the connecting line between the inlet (5) and outlet (17), independently of the other deflection rollers. The optical fibres are as long as to reach over the deflection roller and the longest path between the inlet and outlet. The movable deflection rollers are each pref. freely guided on either side via guide grooves (11,12). The latter may be arranged in opposite pairs so that they engage the roller peripherally. USE - For optical data transmission systems.
Patent DE-4112936-A1 (DE)
Title: Electrode esp. for heart pacemaker - has non-conductive tip coated with conductive coating
Inventor: HEIL HORST F DR
IPC: A61N1/05
Filed: 1991-04-17
Abstract: Electrode for medical applications, esp. as a heart pacemaker electrode, has an insulated pref. wound lead and an electrode tip with a porous surface in its active region. The electrode tip (11) consists of a non-conductive body coated with a conductive coating. Pref. the body is made of ceramic (pref. alumina-ceramic or glass-ceramic) or a polymer (esp. a polysulphone). Prodn. of the electrode tip involves (i) coating the body (10) by PVD, CVD, electron beam deposition or thermal spraying to form a conductive layer with a porous surface; (ii) drawing the wound lead over the shaft of the body; and (iii) drawing a sheath (26), pref. of silicone material, over the lead (16) until the sheath fits closely against the electrode tip (11). ADVANTAGE - The choice of coating processes is extended and the porosity-affecting parameters are optimised independently of the tip body.
Patent DE-4117847-A1 (DE)
Title: Evaluating bar coded optical information - subjecting output from sensor to peak and min. valve generation with comparison process
Inventor: DEUTER KLAUS DR ING
IPC: G06K7/10
Filed: 1991-05-31
Abstract: An optically coded data card has a bar coding structure read by an opto-electronic sensor providing an input (A) to a processing circuit (24). The signal is received by a max. (28) and min. (30) value. A difference voltage generator (32) provides two outputs with different scaling values for comparison with the original input (A). The square wave outputs are fed back (K1,K2) to reset the peak and min. value detectors and also are processed (38) to generate a signal for evaluation by a microcomputer. ADVANTAGE - Processes distorted sensor signal for reliable identification of bar code signals.
Patent DE-4122808-A1 (DE)
Title: Coating susceptor tube of zirconium oxide furnace - by preheating with chemically reducing heating rod covered by quartz glass tube having holes over surface
Inventor: CLASEN ROLF DR
IPC: C23C14/10
Filed: 1991-07-10
Abstract: Coating the internal surface of a zirconium oxide tubular furnace with quartz glass consists of preheating the internal surface with a chemically reducing heating rod which is surrounded chemically reducing heat rod which is surrounded by a quartz glass tube having several holes in the surface. The rod is heated by a low power, high frequency energy source so that the temp. of the rod reaches 1400-1900 deg. C and that of the susceptor wall remains lower. The quartz is vaporised from the tube under the reducing action of the rod via holes (10) and produces a coating on the wall. ADVANTAGE - For producing a compact, thin, adhesive layer of quartz glass that prevents zirconium oxide contamination when light wave conductors are drawn in the furance.
Patent DE-4125562-A1 (DE)
Title: Fragrance compsns., esp. for aromatherapy - contg. marjoram, origanum, rosemary and coriander oils
Inventor: EBERT KARIN
IPC: A61K8/92
Filed: 1991-08-02
Abstract: Fragrance compsns. comprise marjoram oil (I), oregano oil (II), rosemary oil (III), coriander oil (IV) and opt. a diluent. The (I):(II):(III):(IV) vol. ratio is (0.3-8.4):(0.8-7.0):(0.2-12.3):(0.4-9.8). Pref. the compsns. comprise 3.6-8.4 vol.% (I), 1.2-2.8 vol.% (II), 1.2-2.8 vol.% (III), 2.4-5.6 vol.% (IV), 9.63-22.4 vol.% cold-pressed wheatgerm oil, balance cold-pressed grapeseed oil. The compsns. may also contain 0.2-7.2 (esp. 2.4-5.6) vol.% ginger oil, 0.2-7.2 (esp. 2.4-5.6) vol.% basil oil and/or 0.2-7.2 (esp. 1.2-2.8) vol.% cypress oil. USE - The compsns. are esp. useful in aromatheraphy for relieving muscular tension and improving blood circulation. They may also be used in perfumes, cosmetics and pharmaceutical prods.
Patent DE-4125563-A1 (DE)
Title: Sound barrier unit - consists of vertical triangular frames clad with mesh panels and filled with waste rubber or plastics
Inventor: GRUBER FRIEDRICH
IPC: E01F8/02
Filed: 1991-08-02
Abstract: A sound barrier consists of a number of base plates (1) at intervals along the length of the barrier, with two raking supports (3, 4) bolted to the ends of the base plates (1) and bolted together at the top (25). Wire mesh panels are fixed to hooks (6) on the supports (3, 4), the panels being as long as the distance between the supports (1, 3, 4). A vertical standard (2) is bolted to the middle of the base plate (1). Adjustable traverse braces bind the supports (3, 4) together, and the space between the two sets of mesh panels is filled with waste rubber or plastics material. USE/ADVANTAGE - Quickly and easily assembled yet stable.
Patent DE-4126953-A1 (DE)
Title: CORDIC trigonometric algorithms for processing of arithmetic operations - involves iterative computation of XYZ values with data word-width of N bits using adder and subtractor units
Inventor: TIMMERMANN DIRK DIPL ING
IPC: G06F7/544
Filed: 1991-08-14
Abstract: A so called CORDIC trigonometric computing technique provides a simplified means of processing of arithmetic functions. The process uses algorithms performing iterative operations and has adder/subtractor blocks (X, Y, Z). One block (Z) has n/3 adder units, where 'n' is the number of adders previously utilised. A code conversion process is used (U) that is in table form. In a rotation mode, a specific number of bits are used (delta, sigma). In a vector mode, values are fed to an adder/subtractor (S, A). ADVANTAGE - Reduced hardware requiremnt.
Patent DE-4131497-A1 (DE)
Title: Determining angular position of crankshaft of internal combustion engine - detecting peripheral markings on plate rotating with crankshaft to form count pulses, and reference points with position index marks
Inventor: KUENZEL ULRICH
IPC: F02P7/06
Filed: 1991-09-21
Abstract: The method involves detecting markings uniformly distributed about the periphery of a plate rotating with the crankshaft to produce count pulses, each representing an angle increment. Reference points at defined angular intervals are defined by further markings or index marks. The number of index marks defining a reference point describes the angular position of the reference mark. USE/ADVANTAGE - For electronic engine-control. Enables angular speed of crankshaft to be determined very accurately and with short synchronisation time.
Patent DE-4138930-A1 (DE)
Title: Master cylinder for antilock braking circuit - has first and second flow channels between fluid reservoir and working chamber
Inventor: OTT KAROLA DIPL PHYS
IPC: B60T13/16
Filed: 1991-11-27
Abstract: The master cylinder (1) for an antilock hydraulic braking circuit in a vehicle has a storage container (7) in which a first channel (27, 29) runs between the working chamber (34) of the master cylinder and the storage container. A second channel (28, 30) runs between the working chamber and the storage container which on the displacement of the piston (21) is closed in a second working position; the second channel has a control valve (31) which keeps the path closed in its basic position and opens during an antilock control sequence. ADVANTAGE - Master cylinder which does not create an unwelcome reaction effect at the brake pedal during antilock sequences.
Patent DE-4140879-A1 (DE)
Inventor: SCHIEL CHRISTIAN
IPC: D21F3/04
Filed: 1991-12-11
Abstract: Two press units (1, 2), the axes of which are in a pressing plane (E1) inclined from the vertical, together form a press gap. The two press units (1, 2) are supported on pillow blocks (31, 32) which are coupled together in pairs by means of releasable tension rods (30) which transmit the pressing force. The pillow blocks (32) of one press unit are rigidly supported (i.e. directly on a machine frame (27), base or the like) and bear at least a part of the weight of the other press unit (1). On the machine frame (26), base or the like there is a supporting device at least temporarily to take a component of the weight of the other press unit (1) running transversely to the pressing plane (E1).
Patent DE-4142231-A1 (DE)
Title: Deep drawing thermoplastic film components and process appts. - where film is initially stretched in eventual edge areas before thermo-forming stage produces final prod. shape
Inventor: LENDER THOMAS
IPC: B29C51/08
Filed: 1991-12-20
Abstract: In a process for deep drawing components, e.g. container lids, in thermoplastic film the film is prestretched to a given height around the edge region of the final component. A final thermoforming stage follows to produce the final prod. shape. Process equipment comprises a tool with an upper half having a cutting plate and a lower tool half with a cutting punch and stripper plate. Upward movement of the lower tool presses the film against an elastically-loaded support in the cutting plate during the prestretching phase. The working breadth of the support is smaller than the working breadth of the cutting plate. The initial position of the support face relative to the cutting plate face depends on the component forming depth. USE/ADVANTAGE - The process is used for deep drawing thermoplastic film e.g. container lids and eliminates component thinning in the edge region thus producing a stronger prod..
Patent DE-4143306-A1 (DE)
Title: Seal for ball valve - has spring-loaded backing ring which allows adjustment to suit working conditions
Inventor: DRAXLER ERNST DIPL ING
IPC: F16K5/06
Filed: 1991-03-27
Abstract: Ball valve has a seal (6) with a recess (20) which has an angle ring (15), a second sealing ring (14) and a disc spring (16). A gland ring (17) is screwed into an inner thread in the flow passage (25). For a working temp. of -200 to +600 deg.C the seals can be of metal or graphite while for the middle temp. range of -50 to +250 deg.C they can consist of synthetic material e.g. PTFE or PTFE with a filler. A ball valve has a ball (3) retained in a two-part housing (1,2) with metal seals on both sides (5,6) backed by graphite seals (7,14). There is an angle ring (22) in a recess (20) on the metal seal (6) which transmits the pressure of a spring (16) to the graphite seal. The sealing pressure and seal material can be readily adjusted to suit working conditions e.g. degree of thermal expansion. ADVANTAGE - The seal can be of a standard construction which can be readily adapted to different working conditions.