baber/WOPTO huggingface dataset:
Patent DE-4038087-A1 (DE)
Title: Asbestos free laminated flat gasket materials - contg. specified amts. of glass cloth and binder, exhibit esp. high strength, elasticity and gas-proofing
Inventor: SCHMIDT ULRICH DIPL CHEM DR
IPC: C09K3/10
Filed: 1990-11-29
Abstract: Fabric contg. asbestos-free flat gasket materials based on asbestos-free inorganic fibres and binders comprises 70-95 wt.% glass cloth esp. of surface wt. 50-400 g/m2 and 5-30 wt.% binder based on the total amt. of material.       USE/ADVANTAGE - Materials exhibit the properties of asbestos-contg. conventional materials, esp. high strength, elasticity and gas-proofing. Materials pref. comprise 80-95, esp. 80-90 wt.% inorganic fibres and 5-20, esp. 10-20 wt.% binder. Glass cloth pref. comprises glass fibre of dia. 5-12 microns, has a surface wt. of 100-300 g/m2, esp. 150-250 g/m2, has a thickness of 0.2-0.5mm, esp.0.2-0mm, and it has calico weaving. Binder pref. comprises SBR-, NBR-, natural rubber or Si rubber in form of a latex or liq. Si or a polymer dissolved in a solvent.       In an example, a nitrile latex (butadiene-acrylonite copolymer) is used as a binder 1000g NBR latex is mixed with 100g of the vulcanisation mixt. of compsn. 19 wt.% zinc oxide, 19 wt.% colloidal S, 7 wt.% vulcanisation accelerator Vulkacit (RTM), 6 wt.% dispersion agent Vultamol (RTM) and 50 wt.% water. Glass cloth is fed through a padding machine, the cloth having a surface wt. of 200g/m2, of 0.1mm dia., exhibiting calico weaving and having a cloth width of 100 cm. Gas leakage is 0.1-0.5 ml at a gas pressure of 50 N/mm2, the pressure stability is 40-50 N/mm2 and the compression/springiness is 10-15/60-80 wt.%. (Dwg.0/0)
Patent DE-4039436-A1 (DE)
Title: Braking and holding equipment for containers conveyed in pressure transport tube - includes stopping unit formed by mechanical stop following braking unit and connected together via control unit
Inventor: BOLZ ALFRED
IPC: B65G51/20
Filed: 1990-12-11
Abstract: The braking unit (2) has a tubular section of variable passage cross-section. The container (5) in the region of this tubular section contacts the wall of the tube. The stopping unit (3) reduces the free passage cross-section (D) of the transport tube (4). The braking unit (2) is connected to the stopping unit (3) via a control unit (36). The latter operates the stopping unit (3) depending on the position of the braking unit. Sensors (17, 22) connected to the control unit are provided which determine the position of the braking or the stopping unit (2, 3). The control unit operates the stopping unit repeatedly at predetermined time intervals, if the sensor (22) assigned to the stopping unit establishes that the stopping unit, despite a corresp. control signal, does not close or completely close. USE/ADVANTAGE - Ensures reliable holding of required container in hydraulic and pneumatic systems.
Patent DE-4104015-A1 (DE)
Title: Hydraulic hammer for breaking masonry etc. - has elastic sealing diaphragm for working chamber supplied with clear water
Inventor: PLAGA KURT
IPC: B25D9/12
Filed: 1991-02-09
Abstract: The hydraulic hammer is for breaking rock, masonry etc., having a seal (2), a striker piston (3), a guide housing (4) a chiesel (5), a valve housing with valve (6,8), a handle (10), and a hand trigger (11). The seal for the working chamber (1) comprises an elastic diaphragm (2). Energy is supplied at high frequency via clear water. The diaphragm can be secured between the guide and valve housings, and also to the striker piston. It, together with the part in contact with the water, can be of rustproof material. ADVANTAGE - Good sealing and avoids need for hydraulic oil.
Patent DE-4105803-A1 (DE)
Title: Fibre suspension compression appts. - has high-speed continuous sieve belt round a grooved roller and a perforated hollow cylinder
Inventor: BAEHR THEODOR
IPC: D21C9/18
Filed: 1991-02-23
Abstract: The high-speed continuous sieve belt (2), to extract water from a fibre suspension and give a thickened pulp, passes round one cylinder (1) with grooves and a second cylinder (3) which is hollow with a perforated mantle. ADVANTAGE - The appts. gives a compressed fibre pulp, with most of the water extracted from it, with clean separation from the sieve belt cylinders in a simple and cost-effective operation.
Patent DE-4109751-A1 (DE)
Title: Naphthoquinone-thiazol(-2-)one azine derivs. prodn. - by coupling hydrazone and naphthol in presence of hydrogen peroxide and peroxidase, useful as basis for clinical assays
Inventor: PFEIFFER WOLF-DIETHARD DR SC N
IPC: C12Q1/28
Filed: 1991-03-25
Abstract: P-naphthoquinone-thiazole-azine derivs. prepn. of formula (I) comprises reacting hydrazone (II) and alpha-naphthol (III) in presence of H2O2 and peroxidase, in aq. soln. and/or polar or apolar solvent.  In the formulae R1 = alkyl, aryl or H; R2 = alkyl, aryl, alkoxycarbonyl, acyl or H; R3 = alkyl, aryl or NH2; R4 = H or SO3H. USE/ADVANTAGE - Formation of (I) is useful for analytical detection and quantification of phenols, naphthols, peroxidase, (II) or esp. H2O2 (since the amt. of (I) formed is equivalent to H2O2 consumed). The method is particularly used in clinical diagnosis.  (I) can now be prepd. in high yield from readily available materials, in neutral medium under physiological conditions, without decompsn. of (II) (contrast use of NH4OH as reaction medium).
Patent DE-4112929-A1 (DE)
Title: Constant pressure ratio maintenance device for rocket engine - includes additional lasers cooperating with successive flow interception grids in downstream direction for energy leakage recovery
Inventor: STARGARD SIEGFRIED
IPC: F02K9/80
Filed: 1991-04-18
Abstract: A first grid (8) associated with two laser (3, 4) stores the laser beam energy and is opened and closed to prevent suction of the high-pressure medium into the vacuum. Two additional lasers (6, 7) are associated with second and third grids (9, 10) operating on an electro-vacuum basis, intercepting the flow into the thrust nozzle (2) so that leakage of energy from the first grid (8) is recovered and returned to the upstream laser (3). ADVANTAGE - Energy losses at grid are reduced so that compensation by high-power generator is unnecessary even at extreme pressure differences.
Patent DE-4120244-A1 (DE)
Title: Magnetic head slide piece material - based on stabilised cubic zirconia
Inventor: WADA TOSHIAKI
IPC: G11B15/60
Filed: 1991-06-19
Abstract: A material, for a slide piece of a magnetic head, consists of 0.1-20 vol% gp. Vb element oxide(s) (pref. Ta2O5, V2O5 and/or Nb2O5) and 80-99.9 vol% stabilised cubic ZrO2 (pref. stabilised with Y2O3, MgO and/or CeO2). Also claimed are a slide piece consisting of material (A) and a magnetic head having the slide piece. USE/ADVANTAGE - The magnetic head is used for magnetic recording and/or playback in audio equipment, VTRs or computers. The material is wear resistant and has precision machinability processability, high strength, structural density and compatibility with recording materials.
Patent DE-4121267-A1 (DE)
Title: Measuring rotation angle of rotating or pivoting part - using rotation sensor having stator with N-phase rotary field coil and single phase rotor coil, and measuring relative null position
Inventor: LOEWEL HELMUT ING GRAD
IPC: G01B7/30
Filed: 1991-06-27
Abstract: The method involves using a rotation sensor contg. a stator with a rotary field coil for an n-phase system and a rotor with a single phase rotor coil coupled to the rotating or pivoting measurement part. One period of all phases (R, S, T) is divided into equal parts and voltages measured for each point of one half period. The voltages are stored, read out and applied to the stator rotary field coil phase windings. A counter is started at the magnetic field null and used to detect the rotor's null position w.r.t. the field null and hence the rotor angle. The measuring circuit includes a memory (19), a D/A converter (22) and counter (18) which can be clocked at a high rate for high resolution measurements. ADVANTAGE - Does not require specific A.C. supply or carrier modulation.  High accuracy.
Patent DE-4128949-A1 (DE)
Title: Three=dimensional television system - uses volume of fluorescent materials in which points are selectively activated by lasers and electron guns to create 3D images.
IPC: H04N13/00
Filed: 1991-08-31
Abstract: The 3D television system is based upon a viewing chamber that is filled with a mixture of multiple fluorescent substances that can be energised at specific three dimensional coordinate points. The excitation is produced with the aid of a mixture of movable lasers and a fixed electron guns. The emissions can be modulated by a computer operating to a vector control pattern. Only energised points will be visible to the observer. ADVANTAGE - Does not require reference beam to be deflected of viewed object
Patent DE-4131563-A1 (DE)
Title: Determining heat consumption of domestic radiator - processing measured temperatures only when regulator valve is open and surface temperature distribution is uniform
Inventor: RIEDEL MANFRED DR ING
IPC: F16K31/64
Filed: 1991-09-18
Abstract: The forward and return flow temps. and that of the room to be heated by the radiator (32) are measured by sensors (33-35) and combined with heating constants specific to the equipment properties and prescribed standards. A computer (36) generates an output signal corresp. to the quantity of heat required, for use in operation of a pref. thermoelectrically controlled valve (6) which includes an element which can be electrically heated for closing the valve. USE/ADVANTAGE - In a regulated central heating system for calculating heating costs for individual users. The heat consumption can be determined with higher precision without additional cost in equipment and computer power.
Patent DE-4135900-A1 (DE)
Title: Adjustable automotive air spring - is adjusted by varying effective working surface area using tapered supporting cylinder and rolling bellows
Inventor: KETTENBERGER JOHANN
IPC: B60G17/052
Filed: 1991-10-31
Abstract: The air spring is particularly for automative use, its spring effort being adjustable independently of the amount of spring movement. Adjustment is by varying the effective working surface area of the spring (1). This can be done by a supporting cylinder(10) tapering where it encloses a rolling bellows (9). The cylinder is moved axially in relation to the spring mounting, causing radial movement of the bellows in relation to the lengthwise axis of the spring. There is also a contoured piston (14) against which the inside of bellows rolls, and which is movable in the axial direction. ADVANTAGE - Rapid adjustment, low power consumption, and low production and installation costs.
Patent DE-4142234-A1 (DE)
Title: Sensor carrier for use in nuclear spin tomography - contains upper and lower spring-loaded housing parts pivotably joined by axle and with light conductor leading to opposing cushions on front ends
Inventor: HACKEL OLIVER DIPL ING
IPC: G01R33/28
Filed: 1991-12-20
Abstract: The sensor carrier has upper and lower housing parts (2,3) pivotably connected together via an axle (4). Each has a deformable cushion (13,14) attached to its front end. The cushion are arranged opposite each other. A helical spring element (17) operates in the rear of the housing. A light conductor cable (20) contains at least one light conductor (21) leading to the cushions. The helical spring element is of non-metallic material. It is made of an elastomer, pref. of silicon. USE/ADVANTAGE - The sensor carrier is in the form of a clamp.
Patent DE-4206386-A1 (DE)
Inventor: KULPE JUERGEN DIPL CHEM DR
IPC: C07C55/32
Filed: 1992-02-29
Abstract: Fluoro-substituted dicarboxylic acids of the general formula <IMAGE>  or <IMAGE> in which the substituents R1 to R8 independently of one another have the following meaning:  R1 to R8 = H, fluorine, C1- to C18-alkyl, in which a part of or all the hydrogens can be replaced by fluorine, and at least one of the substituents R1 to R8 is a completely fluorinated alkyl or an alkyl of the formula  -(CH2)m-(CnF2n+1), in which m represents 1 or 2 and n represents an integer from 1 to 17. A process for the preparation of fluorinated dicarboxylic acids is additionally given. During the mutual polycondensation with diamines to give  epsilon -lactam or with diols or polyols to give polyester, products having increased thermal stability are obtained.
Patent DE-4207802-A1 (DE)
Inventor: BREUER WOLFGANG DR
IPC: C11D3/12
Filed: 1992-03-12
Abstract: Hydrophobised hydrotalcites are effective thickening agents for non-aqueous liquid washing and cleaning agents with a high concentration of active substance.
Patent DE-4211123-A1 (DE)
Title: Removing oil film from water - using lifting helix screw which is immersed in water at inclined angle.
Inventor: KOERKEMEIER KARLHEINZ
IPC: E02B15/10
Filed: 1992-04-03
Abstract: A pipe-like cylindrical body (40) contains a helix screw (12) which is immersed in the water (16) below the oil film (18) at an inclined angle. As the screw is rotated, the oil is collected and led to a collection chamber (46). The pipe containing the screw can have a series of longitudinal slits (42) arranged around its circumference  in the immersion area. USE/ADVANTAGE - Oil spill collector which is simple in construction and requires little maintenance.
Patent DE-4217445-A1 (DE)
Inventor: MINAHARA HATSUHIRO
IPC: B23K35/36
Filed: 1992-05-26
Abstract: Soldering flux and solder paste compositions which are non-acidic, low-residue and non-corrosive, leaving no substantial residue after soldering without a subsequent cleaning process and yet exhibiting excellent solderability comprise (A) at least one compound which generates a peroxide by decomposition or oxidation when subjected to heating, and (B) at least one ester from an inorganic or organic acid which generates an acid by decomposition in the presence of compound (A). They are particularly advantageous for eliminating the cleaning process with a chlorofluorocarbon solvent to solve the ozone layer destruction problem and for improving the performance of the in-circuit test for printed-circuit boards after soldering. Compound (A) may be an ester such as ethyleneglycol monomethyl ester; an ester such as dimethyl phtholate; or an unsaturated alcohol such as alkyl alcohol. The ester may be a phosphoric ester, a phosphorous ester, a hypophosphite ester, a boric ester, a gallic ester or a salicylic ester.
Patent DE-4227885-A1 (DE)
Title: Open-end spinner pneumatic fibre feed - detaches fibres from wall round sliver loosening roller to be led to zone of fibre feed channel where airflow has the highest speed
Inventor: GEBHARDT WOLFGANG
IPC: D01H4/38
Filed: 1992-08-22
Abstract: In the pneumatic fibre feed operation, for an open-end spinner, the fibres in the fibre feed channel which have been detached from the preceding guide wall around the sliver loosening roller, are detached and directed to the zone where there is the highest air flow speed. Also claimed is an appts. where the concave surrounding wall (12), leading to the fibre feed channel (4), leads into the channel (4) through a convex surface (41) into the wall (42) of the channel (4), so that a tangent (43) at the end of the channel (4) with the surrounding wall (12) in front intersects the facing wall (420) of the channel (4). An auxiliary air stream, against the direction of the loosening roller rotation towards the feed channel, detaches fibres from the wall and holds the fibres detached from the opposite wall where the air has the fastest flow speed. The auxiliary air stream width matches the width of the loosening roller clothing. The fibres detached from the wall are carried to the zone in the fibre feed channel where the auxiliary air stream meets the carrier air stream, when the matching of the flow profile ends. USE/ADVANTAGE - The system is for the pneumatic feed of loosened fibres for an open-end spinner. The operation gives an improved extension of the fibres in the feed channel.
Patent DE-4228733-A1 (DE)
Inventor: HETZEL HERBERT
IPC: H04B10/213
Filed: 1992-08-28
Abstract: In a system, several electric items (10, 12, 14, 16) of various types are connected each by an interface to a common bus constituted by fiber optic sections (18, 20, 22, 24) and which forms a closed ring. Each apparatus is connected to the bus by a connector block (30). The connector block (30) has electric contacts for connecting with the respective apparatus, a fiber optic input and a fiber optic output inserted between two fiber optic sections (18, 20, 22, 24). The connector block (30) contains two electrooptical transducers for converting optical signals arriving via the bus into electric signals and for converting electric signals coming from the electric contacts into optical signals transmitted via the bus. In order to ensure the integrity of the whole bus system even when an item breaks down, the optical path inside each connector block (30) is automatically bridged when the connected apparatus is faulty or when no apparatus is connected. As bridging element a concentrating reflector (118) may be used.
Patent DE-4235757-A1 (DE)
Title: Radiation detector - has detector element on wall of Dewar vessel vacuum chamber with Joule-Thomson cooler
Inventor: LOBENSTEIN WALTER
IPC: G05D23/27
Filed: 1992-10-23
Abstract: The radiation detector has a detector element (2) arranged in a vacuum chamber of a Dewar vessel and mounted on a wall  (1) cooled by a Joule-Thomson cooler.  The cooling effect of the cooler is dependent on the temp. of the wall section carrying the detector element. An electrical temp. sensor is mounted on the wall section next to the detector element.  Its electrical signal controls the flow of coolant in an expansion region of the cooler to maintain constant the detector element temp. USE/ADVANTAGE  - Radiation detector with cryogenic cooling system. The radiation detector is improved to achieve increased temp. stability of the detector element and more rapid control response.
Patent DE-4237548-A1 (DE)
Inventor: LUNKENHEIMER WINFRIED DR
IPC: C07D235/10
Filed: 1992-11-06
Abstract: The invention concerns substituted benzimidazoles of general formula (I), in which R<1> is hydrogen, alkyl or optionally substituted aryl; R<2> is hydroxy, cyano, alkoxy or optionally substituted amino; R<3> is perhaloalkyl and X<1>, X<2>, X<3> and X<4>, independently of each other, are hydrogen, halogen, nitro or optionally substituted aryloxy, at least one of the substituents X<1>, X<2>, X<3> and X<4> being different from hydrogen, the compound 1-cyanomethyl-2-trifluoromethyl-5,6-dichlorobenzimidazole being excluded. The invention also concerns the preparation of such compounds and their use as pesticides.
Patent DE-4242601-A1 (DE)
Title: Fluid power cylinder with adjustable stroke
IPC: F15B15/24
Filed: 1992-12-17
Abstract: The stroke of the piston (4) is limited by endstop elements (2,3) which also act as dashpots to cushion the piston movement. One of the endstop elements (2) is axially adjustable along the cylinder by rotation of a leadscrew (6) mounted in a bearing of the endcap (21) and having an outside handwheel (9).An eccentrically positioned throttle pin (18) passing through a hole and seal in the endcap allows adjustment of a cushioning throttle valve (23) and also prevents rotation of the endstop element (2).
Patent DE-4243394-A1 (DE)
Title: Control system for electrically powered road vehicle - returns road and motor speed signals to determine optimum operating condition for drive via CVT transmission
Inventor: OBARA SANSHIRO
IPC: F16H61/66
Filed: 1992-12-21
Abstract: An electrically powered road vehicle has an accelerator pedal providing an input that is compared (20) with a speed sensor (81) signal. A computer (21) provides an input to a unit (30) to determine the maximum motor (70) speed. The motor speed (71) is fed back and is compared (40) to allow a processor to control a rectifier (60) providing the power input. Power is transmitted to the road wheels via a continuously variable transmission that is controlled (90, 91) to provide the optimum ratio. ADVANTAGE - Improved efficiency of operation.
Patent DE-4301743-A1 (DE)
Title: Arrangement for positioning hard substances in castings
Inventor: LANGE KARL
IPC: B22D19/02
Filed: 1993-01-23
Abstract: The arrangement for positioning hard substances in castings is characterised by the fact that the mould (1) is divided into at least two regions, (2,3) by means of a perforated separating wall (4), with the region (2) with proposed higher wear resistance enriched with particles (5) with higher hardness than the base material (6).The hard substance particles (5) are sintered hard-alloy particles of the same or different sizes, dependent on the requirements imposed on the component to be produced.
Patent DE-4305077-A1 (DE)
Title: Container for contg. hot melting adhesive or resin with tendency to cold flow - comprises floor of full or corrugated cardboard and side walling of paper or plastic sheeting of silicone coating or concealed with siliconised paper
Inventor: WUNDERLICH HANS-DIETER
IPC: B65D65/42
Filed: 1993-02-19
Abstract: The container (1) has a floor (2) of full or corrugated cardboard and a sidewall (4) of paper or plastic sheeting connected with the floor (2) via adhesive areas (3 ). The surfaces of the floor and the side walling facing the interior (5) of the container (1) are coated with silicone or are concealed with siliconised paper. Pref. the adhesive area (3) of the side walling (4) overlaps in the adhesion. The adhesive area(s)  (3) of the container (1) is connected by adhesive strips on the siliconised inner side of the container, and the surfaces of the strips facing the inner space (5) of the container (1) are siliconised. USE/ADVANTAGE - Used for contg. adhesive material with a tendency to cold flowing. It is inexpensive to produce and may easily be sepd. from the hot melting adhesive material.
Patent DE-4309106-A1 (DE)
Inventor: WORLITZER STEFAN
IPC: A43B3/20
Filed: 1993-03-22
Abstract: The shoe for mountain climbers has a shaft and upper part made of a first material (2) as well as an exchangeable sole with edge part made of a second material (7); the materials are selected in such a manner that, as a result of the high coefficient of friction between them, slipping of the sole is excluded even in the case of extreme loading. <IMAGE>
Patent DE-4312302-A1 (DE)
Title: Bicycle cabling for lamps - has cabling within tubular frame and brush-slip ring arrangement between front forks and handlebar column
Inventor: BRUST ERNST
IPC: B62J6/00
Filed: 1993-04-15
Abstract: The bicycle with tubular frame has the cabling (4) between a dynamo, headlamp and rear lamp passing along inside the tubes. The pivot shaft for the front forks within the handlebar column has a flat copper foil around it which acts as a slip ring for a brush contact, the cable for the headlamp being connected to it on the inside. The brush holder is a plastic cylinder (9) held in the handlebar column sidewall at the junction between it and the down tube. The brush is held against the slip ring by spring pressure. The cable exiting the fork shaft leading to the headlamp is integrated with the front mudguard whilst that to the dynamo lies in the down tube. ADVANTAGE - Well-protected cabling allowing easy replacement of lamps.