baber/WOPTO huggingface dataset:
Patent DE-3930250-A1 (DE)
Title: Adaptor and core-bit and centre-hole bit - are attached to hand-operated electric drill spindle
Inventor: KLEIN WALTER
IPC: B25D17/08
Filed: 1989-09-11
Abstract: The hand-guided electrically powered drill is fitted with the centre drilling bit and the larger diameter core drill bit working simultaneously. The non cutting end of the core drilling bit (14) is joined to the threaded stem (13) of the drilling adaptor (10) at which point the normal centre drilling bit (19) terminates. In the side wall of the adaptor (10) are located two channels (16) which pass through the axial bore (11) of the adaptor (10). The whole of the adaptor (10) is screwed to the drive spindle of an electric drill and is positively attached by location notches and matching keyways. The adaptor remains airtight during operations thereby reducing amounts of dust produced at the drill end. USE - Attachment for hand-held electric drill.
Patent DE-3930446-A1 (DE)
Title: New hydroxy-indole cpds. - used for dyeing hair and other keratinous materials, to increase range of shades available
Inventor: LANG GERARD
IPC: A61Q1/00
Filed: 1989-09-12
Abstract: Dyestuff used for dyeing keratinous materials, esp.  human hair, skins or pelts, is an indole cpd. (IA) of formula (I); and new hydroxyindole cpds. (IB) are of formula (I) with specified substits. (IB) comprise 7 cpds. with the following substits.: (IB-1) R4 = OH and R5 = OEt (5-ethoxy -4-hydroxyindole); (IB-2) R2 = Me, R4 = OH and R5 = OMe (4-hydroxy-2-methyl- 5-methoxyindole); (IB-3) R2 = Me, R4 = OH and R5 = OEt (4-hydroxy-2-methyl-5-ethoxyindole); (IB-4) R5 = R7 = OMe and R6 = OH (5,7-dimethoxy -6-hydroxyindole); (IB-5) R2 = R3 7-hydroxy-4-methoxyindole); (IB-6) R2 = R3 = Me, R4 = OH, R7 = OMe (2,3-dimethyl-4-hydroxy- 7-methoxyindole); (IB-7) R1 = Me, R4 = OH, R5 = OEt (5-ethoxy-4-hydroxy -5-methylindole); all other substits. = H; in (IA), the substits. are: R1 = H, lower alkyl or SiR11R12R13; R2-3 independently = H, alkyl, COOH, lower alkoxycarbonyl or -COOSiR11R12R13; R4-7 independently = H or O-Z; Z = H, linear or branched 1-20C alkyl, aralkyl, formyl, linear or branched 2-20 C acyl, linear or branched 3-20 C alkenyl, SiR11R12R13, -P(O)(OR8)2 or R8OSO2-; or CR4R5 or CR6R7 = a gine, =CO, =CS, =P(O)(OR8) or =CR9R10; provided that at least 2 of R4-7 = OZ or a ring and R4 and/or R7 = OZ; R8-9 = H or lower alkyl; R10 = lower alkoxy or mono- or dialkylamino; R11-13 independently = linear or branched alkyl; and the corresp. alkali(ne earth) and ammonium salts and corresp. amines. ADVANTAGE - 5,6-Dihydroxyindole and its derivs. give black or more or less grey colours. Indoles with a di-or tri-substd. aromatic ring, esp. with substit(s). in the 4- or 7-position, extend the range of shades and give more natural shades.
Patent DE-3931480-A1 (DE)
Inventor: BREHER RUDOLF
IPC: F16G1/28
Filed: 1989-09-21
Abstract: A toothed belt where the crown surfaces of its teeth are to be disposed on the bases of gear wheel grooves is provided. In order to achieve a dampened, low-noise running-up of the toothed belt upon the gear wheel, as well as to achieve a free-of-play filling of the gear wheel grooves via the belt teeth in the direction of rotation as required for a reversible belt drive, embedded in the crown surface of each tooth belt is a crown piece made of a material that is elastically softer than the belt material. Viewed in the longitudinal cross-section of the belt, the crown piece extends essentially over the entire length of the crown surface of the belt tooth and protrudes from the crown surface in such a way that as the tooth runs up on the gear wheel, first the part of the curved outer side that protrudes the most strikes the base of the gear wheel groove, and subsequently this outer side is pressed flat against the groove by the belt tension. The inner side of the crown piece that is connected with the belt material is profiled and extends into the material of the belt tooth in such a way that the crown piece, when it spreads in the circumferential direction of the belt due to the radial compression, spreads the belt tooth out  until both sides thereof contact the two sides of the gear wheel groove.
Patent DE-3933328-A1 (DE)
Title: Protection of encased electrical equipment from water droplets - diverting condensate across floor of housing by conical ribs extending inwards from sealing pocket
Inventor: REICH DOROTHEA
IPC: H02B1/28
Filed: 1989-10-06
Abstract: The flat floor (1) of the housing of the equipment is surrounded by outer and inner sealing ribs (2, 3) between which the edges of the cover are set so as to form a so-called labyrinth seal. The pockets (5, 6) are provided for sealing pads at the midpoints of the longer sides. One (5) of the pockets slopes downwards with pointed ribs (7) which guide droplets of condensate towards two drains (8) via a channel between two electrical equipment bases, so that no droplets come into contact with live parts. A gable (9) divides the flow into two streams diverted away from the other pocket (6) and into the drains (8). ADVANTAGE - Application properties of waterproofed electrical installations are improved by simple measures involving no additional components.
Patent DE-3936343-A1 (DE)
Inventor: WILDT ADOLF
IPC: E06B9/54
Filed: 1989-11-02
Abstract: The insect-protection roller grill includes a grating type insect protection grill, which is wound onto a winding shaft which can be arranged in a conventional roller shutter box. Fixed at the lower end of the insect-protection grill is a guide strip which is taken up in a lead weight strip. The guide strip extends beyond the weight strip at both axial ends and engages in side guide rails in which it is guided when the insect-protection grill is wound up and down. The weight of the lead strip causes smooth winding down of the insect-protection grill from the winding shaft when the latter is released. The weight strip is permanently tensioned in the wound-down state, so that it cannot be torn out of the side guide rails even by gusts of wind. The roller grill is economical to obtain and assemble, so simple to handle that it can be operated both by children and adults, and prevents the penetration of insects virtually completely, so that the use of "insecticides" in living areas can be avoided. <IMAGE>
Patent DE-3938158-A1 (DE)
IPC: G06N5/04
Filed: 1989-11-16
Abstract: The knowledge processing system is applicable to artificial intelligence systems for solving unformal problems, problems in a rule-based form rather than a purely mathematical form. The system includes an associative logical memory (2) storing a knowledge base, which can produce a result at its outputs when presented with query data at its inputs. Input/ output means (3, 4) connect the associative logical memory to external devices, which can include speech and image recognition units (6, 8), a speech synthesizer (5) and/or visual display unit (7), and so forth. A knowledge interpreter (1) used during setting up of the system, to translate data entered for the knowledge base into a rule-based form suitable for storage in the associative logical memory (2). <IMAGE>
Patent DE-3938601-A1 (DE)
Inventor: HILGER GERNOT DIPL PHYS
IPC: G01P15/08
Filed: 1989-11-21
Abstract: Proposed for an accelerometer having a spring-mass system and a measuring transducer and consisting of a strip of amorphous metal and a coil arrangement assigned thereto is a design which has a high transverse stability, allows the overall space to be greatly compressed and, if required, enables machine assembly and rapid adjustment in conjunction with good reproducibility in mass production. In detail, apart from a screen (90, 91) assigned to the accelerometer (50) there are assigned to a seismic mass (81, 82), to which one end of the strip (68) is attached, two diaphragm springs (56, 59) which are supported by a supporting sleeve (51). It is possible to attach, by means of hot upsetting, to the latter at the face at one end a base part (58), and at the other end a carrier (60) for the coil arrangement (62) and the bearing for a winding mandrel (70), which serves for fastening the other end of the strip (68), as well as a cover (61), which exercises a braking function for the winding mandrel (70) and is provided with a socket (75). <IMAGE>
Patent DE-3938901-A1 (DE)
IPC: C09K23/00
Filed: 1989-11-24
Abstract: A stable emulsion which is anhydrous and comprises about 20 to 30% by mass of petroleum jelly, about 70 to 80% by mass of glycerine and about 3.5 to 10% by mass of emulsifying wax BP. The invention extends to a stable emulsion which includes water in an amount which constitutes not more than 40% by mass of the emulsion and which has been prepared from the above described anhydrous emulsion. The invention extends further to the use of an emulsion according to the invention for preparing a nutritious, cosmetic or therapeutic substance or composition for application to the human skin or hair. An emulsifying agent is used, the disclosed ones being sulphated higher alcohols. A mixing device is described in which the consituents are fed to a vat in which a pump causes recirculation. <IMAGE>
Patent DE-3942190-A1 (DE)
Title: Prodn. of continuous belts
Inventor: HOMBSCH JOERG PETER DR
IPC: B29C70/50
Filed: 1989-12-20
Abstract: Endless coated belts, particlularly for use on paper or textile machinery, are produced in elastomer with internal reinforcement.  In the process an endless belt of fabric with set length and width is first made, this is held taut as the reinforcement across at least two parallel tensioning rollers and is coated on the top side with liquid or paste of elastomer, a specific pressure is applied to force the elastomer partly through the fabric; a second belt is introduced to run with the first and act as speparating agent between the coating and the pressure device so that the belt is coated on both sides in one operation. A preferred coating is polyurethane: the second belt is e.g. paper, thin metal foil or polyethyleneterephthalate film.
Patent DE-4001405-A1 (DE)
Title: Door post and lintel - is made of fibre board material with surfaces which can be polished or painted
IPC: E06B1/24
Filed: 1990-01-16
Abstract: The door posts and lintel of a doorway are made from fibre board material which is formed into channel sections. Alternatively, channel sections may be formed by bonding together suitably shaped strips of this material. The lintel is joined to the door post by steel clamps (4) which fit in grooves formed in the sections in the internal corners. The surface of the material is treated so that it can be polished or coated with paint. This material does not rot like wood or corrode like steel. USE - Construction industry.
Patent DE-4001904-A1 (DE)
Title: Deposition of ceramic superconductor thin and thick films - uses primary ion beam deposition in high vacuum environment
Inventor: KHAN HAMID RAZA PROF DR
IPC: H01L39/24
Filed: 1990-01-24
Abstract: The alloy use features a general compsn. ReBxMy in which Re stands for a Rare Earth element or Alkaline Earth element, B represents Boron and M is at least one element from the group: Ni, Co, Mn, Al, Cr, Fe, Cu, Sn, Sb, Mo, V, Nb, Ta, Zn, Zr and Ti. The value of x is pref. 0.005-0.1 esp. 0.015-0.1, and of y pref. 3.5-6.0. The alloy pref. contains a hydride which has an equilbrium pressure at 40 deg.C of 0.05-5 atm. Esp. claimed are alloys contg. Co and/or Al, resp. Co and/or Mn together with Al or Mn and either Mo, Zr, or Cr. The alloy features 2 or more metal-cpds. of which the main cpd has the compsn. ReM and the ancillary phase contains at least B, pref. with an element of the Group IVA, VA or VIA of the Periodic System. USE/ADVANTAGE - The presence of the B-rich phase causes a higher number of cracks in the alloy, which makes a larger surface available for the electrode reaction. The B cpd. also enhances the diffusion-rate of H, allowing a higher efficiency. The alloy does not change into powder, which improves the cycling performance. The alloy is used as negative electrode in alkaline rechargeable storage cells.
Patent DE-4007694-A1 (DE)
Title: Variable-profile aircraft wing - has front profiled component hinging where flow is deflected for high lift
Inventor: QUAST ARMIN DIPL ING
IPC: B64C3/48
Filed: 1990-03-10
Abstract: The aircraft wing has a profile variable at the trailing edge so as to give low flow resistance and high height, or high lift and low height. At the trailing edge there are two profiled components (12, 14), extending for the span of the wing and hinging together. The front one (12) is attached to the structure of the wing (2) at the point (10) where flow is deflected to generate high lift. At the setting for low flow resistance, the gap (24) at this joint is completely shut. The joint (18) between the components is at the point (4) where flow is deflected when set for minimum flow resistance. The trailing end of the rear component is arranged to slide.  A drive mechanism (26) moves the components between the settings and is lockable. ADVANTAGE - Simplicity, and requires little modification of wing structure.
Patent DE-4007710-A1 (DE)
Title: Railway track-laying system in tunnel - forms floor with same transverse inclination as track
IPC: E01B3/38
Filed: 1990-03-10
Abstract: The railway track-laying system in a tunnel is particularly for very high-speed trains, a section of track with concrete sleepers, preferably pre-stressed, being aligned in the vertical and horizontal directions in a trough in relation to the tunnel floor, and grouted in with concrete poured on site. The tunnel floor surface (4) at the track is formed with the same transverse inclination as the track and at a constant height (h) below the rail of the track at a small distance from the sleeper ends. The grout (13) securing the sleepers (9) is poured onto the floor. ADVANTAGE - Economy of material.
Patent DE-4014261-A1 (DE)
Inventor: WITTENBERG DIETMAR DR
IPC: C08J9/16
Filed: 1990-05-04
Abstract: Expandable styrene polymers containing 
 
  a) a styrene polymer, 
  b) from 0.05 to 3 % by weight, based on a), of water, 
  c) from 0.001 to 1 % by weight, based on a), of a finely divided organic polymer having a water-absorption capacity of at least 10 g/g, 
  d) from 0.5 to 8 % by weight, based on a), of a C3- to C6-hydrocarbon, and optionally 
  e) conventional additives in effective amounts, 
 are distinguished by good flow properties and a low degree of clumping during prefoaming.
Patent DE-4014854-A1 (DE)
Title: Removing oil and fat from concrete, cement or stone floor - or other porous surface by brushing on nutrient soln. contg. Pseudomonas Putidans and feeding compressed air
IPC: B09B3/00
Filed: 1990-05-09
Abstract: Oil and fat deposits are removed from concrete, cement and stone floors and other porous solid bodies, e.g. railbed ballast or contaminated earth, by distribution and brushing an aq. bacterial nutrient soln. with various lipophilic and hydrophilic materials based on N and phosphate, with addn. of surface-active enzyme proteases and single-cell bacteria of Pseudomonas putida, to stimulate growth of bacterial strains already seeded onto the surface, with simultaneous feeding of compressed air through the brushes. A temp. of 20-35 deg.C. is maintained by treatment with warm water in repeated (about 4) treatments. Rinsing with water and suction from the surfaces follow. Pref. to clean metal-working oils based on an extreme-pressure additive contg. S, single-cell bacteria of the types of Thiobacillus ferooxidans or thiooxidans can be added, at up to 40 deg.C.. After clearing, a water-emulsifiable epoxy resin coating is applied to the still moist surface. ADVANTAGE - There is no risk of explosion and no danger to health. The bacterial emulsion produced can be sepd. into water for disposal and an oil-soil emulsion, which is biodegradable after about 21 days, and can be dried and packed for disposal or burning.
Patent DE-4018950-A1 (DE)
Title: Unit to feed beginning of metal coil strip to processing installation - by gripping coil end in prongs on carriage which is swivelled to installation strip mounting drive
Inventor: KOCK PETER DE
IPC: B21C47/34
Filed: 1990-06-13
Abstract: Unit for conducting the beginning of esp. rolled metal strip from a supply coil to a strip processing installation has the novelty that the strip mounting carriage (1) is movable longitudinally in a guide assembly (2,6) whereby the carriage and guide assembly are located on a swivable table (3). The side of the carriage (1) facing the coil (9) has a two-pronged chisel (4) used to lift the beginning of the strip from the coil and to clamp it hydraulically or magnetically. The guide assembly has a stationary component (6) which is positioned centrally in relation to the line of the strip before the mounting drive (7) of the strip processing installation.
Patent DE-4023810-A1 (DE)
Title: Hotplate for electric hub - provides connection litz wire or lead at ends of heating element resistance wire for protection
Inventor: HECHT JOSEF DIPL ING
IPC: H05B3/74
Filed: 1990-07-27
Abstract: The hotplate can be set into an insulated shell of an electrical hob, pref. under a glass ceramic plate. The heating resistance wire, pref. based on molybdenum disilicide, is wound so that its ends are close together. It is joined to an electrically insulating ceramic formed piece inoertable in the insulated shell. Each wire end (3, 4) is joined to the end region of a conductive litz wire (4, 10) or terminal lead. The formed piece (12) extends only by the wire ends and/or the end regions and leaves the windings free. The formed piece is held to both the wire ends and/or the end regions. ADVANTAGE - Despite sensitivity of heating resistance wire to breakage is easily handled for tansport and mounting without having to support the base surface of the element along its whole length. Is easily connected electrically without having to exert force on the element which could lead to its breakage.
Patent DE-4027300-A1 (DE)
Title: Desulphurisation of gases - by scrubbing with nitrogen contg. heterocyclic solvent
Inventor: LANDECK HEINER DIPL PHYS DR RE
IPC: C10K1/14
Filed: 1990-08-29
Abstract: Selective removal of inorganic and/or organic S cpds. e.g. H2S, COS, CS2 and mercaptans from gases contg. H2, N2, Ar, CO2, CO and/or aliphatic hydrocarbons is effected by scrubbing with a physical solvent comprising a heterocyclic cpd. (I) with 5 or more ring members and at least 3 heteroatoms, including at least one N atom that is double-bonded or is single-bonded and substd. by an organic gp. Pref. (I) is 1,3,5-trimethyl-hexahydro-1,3,5 -triazine, 1,3,5-trimethyl-hexahydro-1,3,5-triazine-2-one, 1,3,5-tri(dimethylaminoethyl) -hexahydro-1,3,5-triazine or 3,5-dimethyl-tetrahydro-1,3,5 -oxadiazine-4-one. ADVANTAGE - Cpds. (I) have a greater H2S/CO2 selectivity than conventional solvents such as N-methylpyrrolidone and polyethylene glycol dialkyl ethers. (12pp Dwg.No.0/1)
Patent DE-4030225-A1 (DE)
Title: Marine craft constructed from two surf-boards - has boards fastened to each other by rigid frame
Inventor: LEISCHNER KURT
IPC: F02B61/04
Filed: 1990-09-25
Abstract: The marine craft may be driven by an outboard motor or propelled by pedal power. It is constructed from two surfboards which are connected to each other by a rigid frame which is not subjected to any torsional force. The frame consists of two longitudinal members (2a) which are fastened to pins (2i) which fit in the holes intended for masts. The longitudinal members (2a) are connected by a rear cross-member (2b) and a front cross-member (2c). The frame is braced by diagonal members (2d) which are fastened to each other by rigid corner joints (2e). USE/ADVANTAGE - Surfboard which is not subjected to rolling or pitching motions.
Patent DE-4034501-A1 (DE)
Inventor: ERPENBACH HEINZ DIPL CHEM DR
IPC: C07C51/573
Filed: 1990-10-30
Abstract: A method for the removal of metallic corrosion products from non-aqueous carbonylation reaction systems is specified in which methyl acetate and/or methanol and/or dimethyl ether are reacted on a noble metal catalyst system which consists of a noble metal of group VIII of the Periodic Table of the Elements, a co-catalyst such as iodide or bromide, in particular methyl iodide, and a promoter such as organophosphonium or organoammonium salt and optionally lithium salt, to give acetic acid and/or acetic anhydride, which is characterised in that 
 
  a) the reaction solution contaminated with metallic corrosion products and containing the catalyst system is contacted with an ion exchanger; 
  b) this thus contacted reaction solution is separated from the ion exchanger; 
  c) the promoter adsorbed on the ion exchanger is desorbed before regeneration with acetic acid and/or acetic anhydride; 
  d) the eluate obtained in step c) is combined with the reaction solution separated off in step b) and together returned to the carbonylation reaction; 
  e) the ion exchanger obtained from step c) is regenerated with strong mineral acid; 
  f) the ion exchanger regenerated in this way is washed until anhydrous with acetic acid and/or acetic anhydride before use in step a).
Patent DE-4038498-A1 (DE)
Title: Plastics foil with controllable transparency - comprises liq. crystal layer between polyvinyl chloride foil layers, for blind slat, window coating and composite glass interlayer
Inventor: TROUSSAS JOANNIS DIPL ING
IPC: B32B7/02
Filed: 1990-12-03
Abstract: Foil comprises two individual stretched plastic (e.g. PVC) foils having, on facing sides, electrically conductive layers (3,4) between which is nematic liq. crystal layer (5).       USE/ADVANTAGE - Foil can change between a transparent and non-transparent state at the touch of a button.       (Dwg.1/1)
Patent DE-4103445-A1 (DE)
Title: Hot rolling process esp. for steel plates - where material is pre-rolled to required width with transverse taper produced by continuous opening and closing of roll gap and finish rolled turned through 90 deg.
Inventor: BOROWIKOW ALEXANDER DR ING
IPC: B21B1/08
Filed: 1991-02-01
Abstract: Hot rolling process esp. for steel plates in a reversing mill to produce material of tapered cross section in width, whereby the material is pre-rolled in several passes to the required width and a taper in width is produced in the last pass by continuous opening and closing of the roll gap. The material is finish rolled turned through 90 deg. in several equal-reduction passes with rolls set to the same taper geometry. USE/ADVANTAGE - Claimed invention provides process for rolling plate material tapered across the width, for use e.g. in the outer skin of ship's hulls and crane construction.
Patent DE-4110960-A1 (DE)
Title: Cleaning socket for tubes or containers - by locking device ensuring correct alignment of cover on tube surface
IPC: B08B9/00
Filed: 1991-04-05
Abstract: Cleaning socket for tubes or containers in which a welding ring (1) is welded to the tube surface with a ring seating (6) of the cover (4) fitting into the ring (1). A plate (9) with central bore is welded to the ring (6) and a threaded pin (10) is set in the bore. The pin in turn is screwed into a central bore (12) of guide bolt (11) which has an upper rotatable wheel (19) and supports the locking mechanism (14). ADVANTAGE - Device ensures correct realignment of sealing section (5) when socket is closed thereby avoiding any flow and dirt deposition problems being caused by a stepped inside surface of the tube.