baber/WOPTO huggingface dataset:
Patent DE-3922776-A1 (DE)
Title: Multispindle drilling head with pitch circle adjustment - has spindles in radial slides with simultaneous and equal adjustment by ring cam mechanism
Inventor: SEEGER MANFRED
IPC: B23B39/16
Filed: 1989-07-11
Abstract: Multispindle drilling heads have pitch circle adjustment. They often have separare mechanisms for radial and circumferential adjustment. This is avoided by mounting the spindles (2,3,4,5) in radial slides (31,32,33,34) with guide slots (27.29,.,.) set at an angle beta to the orthogonal axes (29.30). The rollers (22,23,.,.) are fixed in a control ring and engage in the slots (27,28,.,.), so that when the ring is rotated the radial slides, together with the spindles (2,3,4,5) simultaneously move inwards or outwards by equal amounts. The spindles can be hydraulically clamped and adjustment can be under NC control. USE/ADVANTAGE - Machine with multispindle drilling heads is of simple design. Compact dimensions. Adjustment can be made quickly without the need to change any components.
Patent DE-3927775-A1 (DE)
Title: Supplying rotating shaft with oil - involves shaft fitted with two end face sealing rings
Inventor: MUELLER WALTER
IPC: F16L27/087
Filed: 1989-08-23
Abstract: Lubricating or cooling oil is supplied from a housing (2) to a rotating shaft (1) by means of a sealing device with two sealing surfaces (7) and (8). The housing (2) has an oil supply hole (5) and the shaft (1) has a radial hole (6) positioned between the two sealing surfaces (7, 8). The sealing surfaces are formed by the contact faces of outer sealings (10, 11) fitted in the housing (2), and inner sealing rings (14) and (15) which are mounted on the shaft (1). This type of oil seal can accommodate relative radial movement between shaft and housing due to vibration. USE - Lubrication of gear drives.
Patent DE-3930657-A1 (DE)
Title: Semiconductor structure with stacked capacitor electrodes - uses low stress oxide layer on poly:silicon during etching of recess transistor gate to avoid undercutting
Inventor: HACHISUKA ATSUSHI
IPC: H01L21/316
Filed: 1989-09-13
Abstract: A polycrystalline Si-layer, covered with an insulator layer, is etche dinto a pattern including MOS transistor gates and using a single mask for both layers.  The feature is that the insulator layer is a low stress (pref. less than 10 power9 dyne/ cm2) oxide layer which has been deposited at. a temp. between room temp. and 800 deg.C. The insulator film is pref. made using chemical vapour depsn.  (CVD) using tetra-ethoxy-ortho-silicate(TEOS).  Also claimed is the use of TEOS in a depsn. process using ozone (O3), at a temp. between room tmep. and 430 deg.C. The MOSFET is pref. used as a part of a storage cell also contains a capacitor, pref. with a stacked structure, consisting of 2 conducting layers separated by an insulator layer.  These capacitor plates pref. overlap the gate electrodes formed as claimed and are separated from this by the low-stress oxide layer. USE/ADVANTAGE - The feature enables the dry-etch process to etch access transistor gates from DRAMs without producing undercutting. This provides a more conductive channel region, and so a lower on-resistance of the transistor.  This results in faster operation of the DRAMS.
Patent DE-3935249-A1 (DE)
Title: Removing water from animal slurry - by mixing slurry with composting material in fermentation container and evaporating water by heat produced by microorganisms in compost
Inventor: HOFMANN HERMANN
IPC: C05F15/00
Filed: 1989-10-23
Abstract: Animal slurry is de-watered by evapn. the heat required being supplied by microorganisms. The slurry is added to a decomposing or composting mixt. contg. the microorganisms.  Additional heat, such as waste heat from a combustion process, may be added. The mixt. of slurry and compost is placed in a fermentation container and aerobically stabilised until the moisture in the slurry is evaporated. On completion of drying, the solid particles formed on the surface of the compost are sepd.  by sieving. Packing materials may be used in the fermentation container, and these may be externally heated and can take the form of heated pipes or plates projecting into the interior of the container. The air introduced into the fermentation container may be pre-heated. USE/ADVANTAGE - Slurry is a valuable agricultural prod. which has an excessive moisture content. This invention provides an improved method for reducing this moisture content, reduces the risk of contamination of ground waters, prevents the emission of odours and avoids the need to use expensive stacking areas.
Patent DE-3939444-A1 (DE)
Title: Holding dentures in place - involves U=shaped piece of spring wire which engages notches in back molars
IPC: A61C13/28
Filed: 1989-11-29
Abstract: Upper and lower dentures are held in place in the mouth of the wearer by means of two U shaped or V shaped devices.  Each of these devices is made of elastically deformable material and is bent sideways. One of these ends fits in the notch in a back molar (5) of the upper denture (6) while the other end of the device fits in the notch of the corresp. back molar of the lower.  denture (7).  The device is made from spring steel wire with a corrosion resistant coating. USE - Dentures held in place by springs.
Patent DE-4002628-A1 (DE)
Title: Dirt-resistant vehicle tyres - have on outside of outer side wall rubber mixt. with low specific resistance contg. electrically-conducting carbon black
Inventor: TOKIEDA AKINORI
IPC: C08L21/00
Filed: 1990-01-30
Abstract: Pref. radial vehicle tyres (I), esp. for automobiles, have, on the outside of the outer side wall, a rubber mixt. (II) consisting of vulcanisable rubber (III) and electrically-conducting carbon black (IV), with specific resistance below 10,000 ohm.cm. More specifically (IV) has specific surface area 100-150 m2/g (by nitrogen adsorption), dibutyl phthalate adsorption 90-130 ml/100 g, pH 7.0-8.0 and a volatiles content of 1.0-3.0; amt. of (IV) is 5-25 pts. wt. per 100 pts. wt. (III); (III) is natural rubber, or polyisoprene, butadiene and/or SB rubber. Conventional carbon black can also be incorporated for reinforcing purposes, so long as it does not adversely affect the elelectrical conductivity of (II). ADVANTAGE - Incorporation of (IV) greatly reduces the tendency of the tyres to get dirty, and makes them easier to clean.
Patent DE-4013482-A1 (DE)
Title: Assembly process for visual display matrix boards - uses pure iron for matrix, anode and frame components
Inventor: TISCHER KURT-MANFRED
IPC: H01J29/46
Filed: 1990-04-27
Abstract: A visual display panel comprises two rectangular parallel planes of conductors orientated orthoganally to form a matrix over a planar anode and held inside a frame (11). They are bonded together through separately insulated by means of glass-solder. In order to avoid undue stresses in the assembly process the thermal expansion coefficient of the glass and frit is chosen to match that of the frame, the anode and the conductor planes (16, 17) which have a coefficient of 12 times 10 to-6. During fritting an excess temperature of between 20 and 50 degrees C is held in the conductor planes by means of an overlaid hot-plate so that they remain stretched on cooling. ADVANTAGE - Optimum control of thermal stresses during assembly.
Patent DE-4017822-A1 (DE)
Title: Ring seal for body of  rotary slide valve - avoids thermal damage by tapping into the cooling system
Inventor: HELLMICH WOLFRAM
IPC: F01L7/10
Filed: 1990-06-01
Abstract: Ring seal (16) consisting of an annular body (17) with a sealing element (59) fitted into an annular groove (19) of the cylinder head (1) of an IC engine with a sealing ring (34) between the annular body and the wall of the groove. The annular groove is connected at two opposite points to the cooling medium circuit (46) and both connections (45) are sealed by the sealing rings (33, 34). USE/ADVANTAGE - Seal for a IC engine rotary slide valve body in which harmful temp. effects on the sealing ring are reduced.
Patent DE-4020383-A1 (DE)
Inventor: FRIESE KARL-HERMANN DIPL PHYS
IPC: G01N25/30
Filed: 1990-06-27
Abstract: The description relates to a process for protecting catalysts used for cleaning exhaust gases by temperature measurement using a heat tone sensor which is specially suitable for implementing the process, in which behind the catalyst in the exhaust gas flow or part thereof is inserted a heat tone sensor with at least two NTC or PTC resistors and a coating in the region of at least one of these resistors of a catalytically active material on which the same exothermal reactions are triggered as on the catalyst used for cleaning the exhaust gases and thereby to detect the fall in the conversion rate of the catalyst by means of the change in resistance caused by the excessively strong exothermal reaction when the resistor is overheated.
Patent DE-4021410-A1 (DE)
Inventor: STRELOW GUENTER
IPC: F04D13/14
Filed: 1990-07-06
Abstract: The invention relates to a duplex centrifugal pump with two impellers supported in a housing and two electric motors arranged side by side in parallel,
 - the pump housing having a plane side wall containing the inlet and outlet,
 - the pump housing being fixed by this flat side wall to a second device, in particular a consuming device,
 - an insert being detachably enclosed in the pump housing which can be slid in through a large aperture in the flat side wall and forms the inlet and outlet as well as internal connecting ducts and
 - one or more shut-off elements, particularly reversing valves or non- return valves, being arranged in the insert. 
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Patent DE-4024178-A1 (DE)
Inventor: BUCK WALTER DR
IPC: H04B7/08
Filed: 1990-07-30
Abstract: In a reception process for the mobile reception of frequency-modulated stereo-multiplex signals, e.g. UHF radio signals with a diversity reception process, the reception quality is further improved in that the diversity reception process is fitted to remove interference occurring on by-pass lengths at which one weakening in reception occurs and interference occurring on by-pass lengths at which at least two reception weakenings occur are removed in a subsequent signal processing circuit.
Patent DE-4028247-A1 (DE)
Title: Provisional grave inscription unit - incorporates column comprising post with bearer plate fixed to its backwardly angled upper part
Inventor: WINKLER MORITZ
IPC: G09F3/08
Filed: 1990-09-06
Abstract: The bearer plate (3) fixed to the post (2) accommodates an exchangeable inscription panel (4). This panel is made of weather-resistant, directly inscribable material, and is fixed to the bearer plate (3) by retainers (5). It is of a material, the upper surface of which can be coated with silver, gold or wood grain material. The retainers (5) for the inscription panel (4) engage only at its corners, are elastic, thus securing the bearer plate in position. USE - To mark a grave with the identity of the deceased.
Patent DE-4030477-A1 (DE)
Title: Mfg. mouldings and objects for prodn. of vehicle inner linings, etc.
Inventor: LANDLER JOSEF DIPL ING
IPC: B29C48/345
Filed: 1990-09-26
Abstract: Mfr. of mouldings or objects (I) is claimed. (I) consists of at least one external plastic layer with the moulding on one surface on which a foam layer is arranged either via an intermediate or directly. The plastic coating or moulding is mfd. by negative or positive thermoforming, extrusion, blowing processes or blow moulding, slush moulding or by rotation sintering. The novelty is that (I) made of a formed film, sheet, plate, mass, blow moulding, melt or lower before, during or after cooling is made into a second form which corresponds to a form or profile of the first produced form. The moulding is closed or sealed with a lid and after final moulding and/or surface structuring or pocking, and before, during or after closing the moulding, plastic foam or hollow particles selected from spherical granulate open porous or closed porous foams, are applied into the intermediate space between the plastic (I) or lid. A hot gas or water vapour is then introduced via several pipes into the closed intermediate space which contains particles partially or completed sintered or welded or moulded using adhesive cpds.. The particles simultaneously bond with (I) comprising moulded and/or structured polyolefin film, sheet, plate or layer, and the finished moulding or object contg. a foamed layer is removed from the mould after or during cooling. An appts. for carrying out the process is also claimed.
Patent DE-4032882-A1 (DE)
Title: Dental adhesive with good initial adhesion
Inventor: EPPINGER BERNHARD
IPC: C09J4/00
Filed: 1990-10-17
Abstract: A novel dental adhesive comprises (A) 1-25 (pref. 5-20) wt.% of (meth)acryloyloxy-ethyl -dihydrogenphosphate and/or di(meth)-acryloyloxyethyl -hydrogenphosphate; (B) 3-40 (pref. 5-30) wt.% of one or more acid carboxylic acid esters which is a dicarboxylic acid mono(meth)acryloyloxyethyl ester (the dicarboxylic acid pref.  being an alkane dicarboxylic acid with 1-6C in the alkane gp., maleic acid, benzene dicarboxylic acid, or a cyclohexane dicarboxylic acid), o-trimellitic acid,  mono(meth)acryloyloxyethyl ester or pyromellitic acid di(meth)acryloyloxyethyl ester; (C) 0.05-5 (pref. 0.1-2) wt.% of a photopolymerisation catalyst; and (D) the balance of EtOH.
Patent DE-4033545-A1 (DE)
Title: Light scattering safety glass pane - has two glass skins bonded with dispersion of light scattering particles in resin of different refractive index
Inventor: MARQUARDT REINHOLD DIPL CHEM D
IPC: G02B5/02
Filed: 1990-10-22
Abstract: A light-scattering sheet of safety glass has at least two transparent clear glass layers with a bonding layer between made of an organic-based resin/polymer contg. uniformly distributed light-scattering material which is transparent and clear and in the form of a separate liq. or solid phase, the particles of which have a different refractive index from that of the resin/polymer in which they are dispersed. The latter is also transparent and clear and is pref. polyvinyl-butyral, polyacrylic, polymethylmethacrylate, polyester, polyurethane or epoxide. The light-scattering particles are pref. at least partially PVC or glass or aliphatic silicone. ADVANTAGE - The total transmission of the prod. is high and remains constant within the temp. range of -40 to +130 deg. C.
Patent DE-4038155-A1 (DE)
Title: Filtration and absorption material - is used for liquids contg. oil grease and paint and can be applied to  environmental protection
Inventor: ALTHOEFER WERNER GUSTAV
IPC: C09K3/32
Filed: 1990-11-30
Abstract: The filtration and absorption material sucks up liquids containing oil, grease and paint and bonds to them. It can absorb emulsions of oil and water, while discharging clarified water, and can be usable with liquid or gas or mixtures of them. It is of ground polyurethane foam diluted with chlorine.       USE - For cleaning and environmental protection. (Dwg.0/0)
Patent DE-4100243-A1 (DE)
Inventor: JUDEX HELMUT
IPC: A21C5/02
Filed: 1991-01-07
Abstract: The dough dividing machine has a dividing chamber support (1) which with its front side is movable to and fro in relation to the outlet (2) of a dough supply (3, 4) and in each of the dividing chambers (5) or (51) of which, which are arranged next to one another in a row, a measuring piston (6) or (62) is situated, it being possible according to requirement to put one or more dividing chambers (5) out of operation, the measuring pistons (6) situated therein being locked in their position flush with the front side of the dividing chamber support (1). 
<??>The measuring piston (6) is designed as a double measuring piston, the outer main piston being formed as a piston sleeve (61), in which the inner small measuring piston (62) can be driven for dividing small dough volumes or, in the locked state with the piston sleeve (61), for dividing large dough volumes. 
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Patent DE-4102482-A1 (DE)
Inventor: EICHER BERNHARD
IPC: B27F1/00
Filed: 1991-01-29
Abstract: A hand tool, especially an angle grinder, has a tool housing (10) divided into a motor casing (11) and a hand-grip (15) arranged on its front, the hand-grip (15) being rotatable about the longitudinal axis of the motor casing (11). A securing device (20) ensures that the hand-grip (15) is held in at least two predetermined rotating positions on the motor casing (11). In order structurally to simplify the securing device (20), the hand-grip (15) is fitted on a mounting (22) on the motor casing (11) so as to rotate and move axially and engages with at least one locking cam (26) in an annular groove (23) in the mounting (22) corresponding to at least two locking recesses (24) in the annular collar (25). The engagement between the cam (26) and the recesses (24) attained by the axial movement of the hand-grip (15) is maintained by at least one locking pin (28).
Patent DE-4107119-A1 (DE)
IPC: C09K19/42
Filed: 1991-03-06
Abstract: The invention concerns a liquid-crystal medium based on a mixture of polar compounds exhibiting positive dielectric anisotropy, characterized in that the medium contains one or more compounds of general formula (I) in which X is fluorine, chlorine, CF3, OCF3 or OCHF2; ring A is trans-1,4-cyclohexilene or 1,4-phenylene; and R is alkyl, oxaalkyl, fluoroalkyl or alkenyl with, in each case, up to 7 C-atoms.
Patent DE-4109251-A1 (DE)
Title: Fatty alcohol poly:alkylene-glycol] ether] prodn.
Inventor: HEN-FERRENBACH KATHERINE LE
IPC: C07C41/03
Filed: 1991-03-21
Abstract: Fatty alcohol polyalkylene glycol ethers with improved filterability are prepd. by alkoxylation of fatty alcohols in the presence of catalysts which are insoluble in the reaction mixt., whereby (a) fatty alcohols of formula R1-OH (I) in which R1 = 6-24C aliphatic hydrocarbon gp. with 0, 1, 2 or 3 double bonds are reacted with an ave. of 1-20 mol. ethylene- and/or propylene oxide per mol. fatty alcohol in the presence of layer cpds. (II), (b) the reaction prod. is treated with a coagulating agent (III) and opt. a base and (c) the coagulate formed from the layer cpd. and the coagulating agent is separated, opt. in the presence of a filter aid.
Patent DE-4114690-A1 (DE)
Title: Vehicle number plate holder - has profiled bearer part whose front flanges hold plate, with recesses for fixtures in side flanges of vertical central web
Inventor: STELL THOMAS DIPL ING
IPC: G09F7/18
Filed: 1991-05-06
Abstract: On each side of the central web (4) are profiles (7,8), the height of which correspond to that of the web and have at least two recesses (9,10) which extend vertically to the longitudinal direction of the bearer part (2). On either side of the central web is at least one further vertical web. The number plate holder (1) has at least one cross profiling directed in the direction of the longitudinal axis. In the intersection area of the central web with the cross profiling X-shaped incisions are provided. USE/ADVANTAGE - A simple and practical fixture for a number plate which can be fitted to both vertical and horizontal vehicle components.
Patent DE-4116599-A1 (DE)
Title: Boot stretching tree - has two opposed side sections in upper and joined by steel plate
Inventor: ROESSLER WERNER
IPC: A43D3/14
Filed: 1991-05-22
Abstract: The boot-tree has two opposite-facing, downward-pointing side parts (2, 2') in the boot's upper, and joined by at least one steel plate spring (3) in their top part (2a), and splayed apart for tightening the boot-upper. The spring's ends are held in pockets (10, 10') in the sides. The top of the side parts has a tension bar (5) which locks the bottom parts (2b) of the sides together, when the top parts (2a) are pressed together. The tension bar operates in conjunction with a flat spring (3, 3') in the top and bottom parts. The top of the tension bar has an eyelet (6) through which the flat spring loosely passes. A lifting-link (7) consists of a bearing-strip (8) with elongated slot (9). ADVANTAGE - The boot tree can easily be inserted into a downward-narrowing boot upper.
Patent DE-4123042-A1 (DE)
Title: Electronic weighing machine conducting housing - has transparent, conductive layer coated with non-conductive, transparent, protective mesh
Inventor: MELCHER FRANZ-JOSEF
IPC: G01G23/18
Filed: 1991-07-12
Abstract: The electronic weighing machine has an electrically conducting housing and a display region covered by an electrically conducting, transparent layer (11) connected to the housing. An electrically non-conducting, transparent protective film (12) is applied to the conducting, transparent film in the form of a mesh with a pitch between 0.01 and 0.03 mm. The non-conducting film is pref. printed. Both films can be applied to a glass plate or to a plastics foil. ADVANTAGE - Improved protection with reduced glare.
Patent DE-4123229-A1 (DE)
Inventor: REINSCH BURKHARD
IPC: B60J7/047
Filed: 1991-07-13
Abstract: A vehicle roof for closing an aperture in a fixed roof 11 surface comprising a series of strips 10a-10e. In closing the roof the strips lie edge to edge to form a flat sheet. The strips are mounted on guide tracks 22 in a roof frame fixed beneath the roof surface around the aperture. Each strip is mounted to the guide tracks at two locations by means of pins 57a-57e and 82a-82e and the strips can be moved rearwards and tilted. In the roof open position the strips are tilted and lie substantially parallel to one another. The tilting takes place towards the rear of the aperture as each strip is completing its rearward movement. The strips remain engaged with both guide track locations at all times and this ensures the stability of the assembly. A wind deflector 16 is provided at the forward end of the roof. <IMAGE>
Patent DE-4124339-A1 (DE)
Title: Ball valve with ceramic ball and housing with plastics lining - is fitted with rings to prevent abrasive particles damaging lining
Inventor: NEMETZ JOSEF
IPC: F16K5/06
Filed: 1991-07-23
Abstract: A ball valve has a housing (1) made of metal, or other suitable material, and has a lining (3) made of plastics. The ball, which is not provided with a surface coating, is made from ceramics or similar material. A ring (7) of resilient or flexible material is fitted in the plastics lining on the inlet side and a second such ring may be fitted on the outlet side. This ring (7) is either in direct contact with the ball (2) or separated from the ball by a small gap (a) which is smaller than any abrasive particle which may be suspended in the gas or liq. flowing through the valve. USE/ADVANTAGE - The ring prevents abrasive particles from becoming lodged between the ball and lining and so causing damage to the lining.
Patent DE-4128517-A1 (DE)
Title: Cable end seal for cylindrical plastic-coated conductors
Inventor: BAUER WOLFGANG-VOLKER DIPL ING
IPC: H02G15/04
Filed: 1991-08-28
Abstract: The one-piece can has a conically narrowing bag mouth hole, the opening dia. (D) of which is greater and the bag mouth end dia. (d) is smaller than the outer dia. (4) of the cable (3) and is provided with a conically running inner thread. The inner thread has a sharp-edged peak thread with a flank angle between 25 and 60 deg. The pitch of the inner thread amounts to 0.3 to 3.0 times the outer dia. of the cable (3). The thread height of the inner thread is between 0.1 and 0.9 times the thickness of the cable covering, and is pref. 0.5 times. Conically running outer threads connect to the two flanks of the inner thread. The inner thread or the inner and outer threads are formed as sharp-edged saw threads with a flank angle between 15 and 30 deg.