baber/WOPTO huggingface dataset:
Patent DE-3923301-A1 (DE)
Title: Plastic-bound prefabricated filtering stone for use in drinking water wells and other units through which flow liquids and gases
Inventor: NKOY MBOLOKOLA DIPL ING
IPC: B01D39/20
Filed: 1989-07-14
Abstract: Published without abstract.
Patent DE-3926457-A1 (DE)
Title: Fibre=optic sensor for parameter measurement or transmission
IPC: G01B11/16
Filed: 1989-08-10
Abstract: The sensor comprises a single optical fibre or an intertained optical fibre bundle (1, 2, 3) connected at their ends (8a, 9a) to a light testing device.  Pref. the optical fibre bundle (1, 2, 3)has three individual optical fibres which are plaited together and joined at spaced points, contained within an outer protective sleeve which can be attached to a ship`s trawl cable, for measuring the radial deformation of the latter, e.g. for geological survey of the sea bed.
Patent DE-3930976-A1 (DE)
Inventor: BANHOLZER KURT
IPC: G06M3/12
Filed: 1989-09-16
Abstract: The electromechanical counter mechanism has numerical cylinders (4) which are accommodated in a housing (3) and are moved by a drive (2). The drive (2) is connected to a switch armature (8) by means of which an indexing wheel (7) can be operated to move the numerical cylinders (4) onwards. The drive (2) furthermore has a first and a second pivoting arm (10, 11) which are not mechanically coupled to one another and each have a coil (28, 29). The two pivoting arms (10, 11) can be pivoted synchronously, at right angles to the pole surface of the permanent magnet (38), in opposite directions in order to move the numerical cylinders (4). The permanent magnet (38) is located between the pivoting arms (10, 11). Both pivoting arms (10, 11) are supported in a sprung manner on the housing (3). The pivoting arms (10, 11) cannot pivot inadvertently with respect to one another and hence also cannot inadvertently initiate a movement process. In consequence, the electromechanical counter mechanism can be used where impacts occur and a relatively large magnetic influence can take place. 
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Patent DE-3935209-A1 (DE)
Title: Adsorption filter for fuel vapour - incorporates ventilation device at filter outlet
Inventor: HOLZER WALTER DR
IPC: F02M25/08
Filed: 1989-10-23
Abstract: The filter is esp. for use in vehicles. It has a feed connection (5) for vapours from the fuel tank, resp. for vapour suction (6) to the engine at the filter intake, and a fresh air connection (4) at the filter outlet. A ventilation device (3) is connected to the adsorption filter (1), forming a single unit. The filler has a return shut-off device (13), to block the vapour feed connection in direction of fuel tank. USE - Fuel vapours filter for use in vehicles.
Patent DE-3937794-A1 (DE)
Title: Fastener driving tool with EM impact device - has coil spring for return movement of impact blade
Inventor: HOELZEL MARTIN
IPC: B25C1/06
Filed: 1989-11-14
Abstract: The impact device comprises an e.m. coil (9). A central bore (10) receives a relatively displaced armature (14) coupled to an impact blade (15) acting on the fasteners fed from a supply magazine. A coil spring (18) provides the return movement of the impact blade. The spring is attached to the impact blade at one end, its opposite end being attached to the housing (3) of the fastener driving tool. Pref. the length of the armature is not greater than that of the winding (13) of the drive coil. ADVANTAGE - Reduced overall size.
Patent DE-3940167-A1 (DE)
Title: Finger-tip tooth cleaning device - is flexible cover with studs fitting over finger
Inventor: KOEHLER GEB SAHEBI
IPC: A46B5/04
Filed: 1989-12-05
Abstract: The finger tip tooth brush is a flexible finger tip cover (1) which can be made in different sizes fro childreb abd adults. On the underenath side of the plastic cover tehre are knobs used to massage and clean the teeth and gums. The bristle {()(3) are attached to the plastics cover. USE/ADVANTAGE - Readily available toothbrush which can be easier to use, particularly by children. It is also easily portable and thus readily available.
Patent DE-3942571-A1 (DE)
Title: Monitoring quality of sound archive material - having recording quality parameter compared with stored valve to identify faults
Inventor: HERLA SIEGBERT DIPL ING
IPC: G11B27/00
Filed: 1989-12-22
Abstract: Audio signals are recorded (10) with the signals played back to a coupled computer (20) that determines errors based upon defined quality of recording parameters. The signals are permanently stored of the processor generator generates an output (21). The recorded signals on tape or disc are then placed in a sound archive (30). Each use of the recording involves comparison of the actual quality with the stored quality parameter. Any sudden changes in performance can be detected and action taken. ADVANTAGE - Monitors quality of sound archive recording.
Patent DE-4006818-A1 (DE)
Title: Injection moulding shoe soles - die with movable insert gives better attachment of edge trim strip
IPC: B29D35/06
Filed: 1990-03-05
Abstract: A process for injection moulding shoe soles uses a die whose lower half (1) consists of a floor insert (4) which is resiliently mounted in a cup (2) and seals (5) against the side walls (6). The process steps are: (i) an edge trim strip (19) is placed in the die; (ii) a last (17) is moved into position; (iii) sole material is injected pressing the trip strip (19) against the side wall (6); and (iv) the floor insert (4) moves downwards while the trim strip (19) stays in place. The mould space (18) is enlarged creating a gap near the bottom (21) of the trim strip which then fills with sole material to form a bridge. The floor insert is mounted on coil springs (8). Foamed polyurethane is injected through nozzles (15) and fills the gap (18) between the last (17) and the insert (4). As the pressure rises, the spring force is overcome and the insert (4) moves downwards and allows the bridge to form. USE/ADVANTAGE - This method of construction attaches the trim more firmly and gives better edge protection to the shoe.
Patent DE-4010027-A1 (DE)
Title: Suspension reel for cable or hosepipe storage - has low cost fixed drum assembly with spring loaded radial stops enabling coils to be freed
Inventor: STEILNER AUREL DIPL ING
IPC: B65H75/36
Filed: 1990-03-29
Abstract: A suspension reel for the storage of coiled cable or flexible hose (26) has a stationary drum (10) fixed to a wall (14) by flange (12) around which the cable (26) is coiled. The front face (44) of the drum (10) carries an upper (20) and lower (22) finger shaped spring steel cable stop securely clamped by saddle (40) but free to move outwards against the return force of spring coils (36, 38). Any required number of turns of the cable may thus be conveniently removed against the stops which automatically return when tension ceases. A simplfied drumless construction is also illustrated. USE/ADVANTAGE - The storage of coiled cable or hose. Improves on alternative low cost support hook which does not permit frontal removal of cable without lifting all coils off hook.
Patent DE-4018828-A1 (DE)
Title: Stereoselective introduction of 7 or 8-substits. in oestratriene - by reacting tetra:ene with formaldehyde, then redn. or hydrogenation, and new process intermediates
Inventor: KUENZER HERMANN DR
IPC: C07J51/00
Filed: 1990-06-08
Abstract: Prepn. of oestratriene-3,17-diol derivs. of formula (I) comprises (1) reacting tetraene (III) with HCHO in presence of Lewis acid to give hydroxymethyl cpds. (IIa) or (IIb), then (2) catalytic hydrogenation of (IIa) to give (I; X=alpha-CH2OH, Y=Z=alpha-H); or Birch redn. of (IIa) to give (I; X=alpha-CH2OH+ Y=beta-H; Z=alpha-H), or catalytic hydrogenation of (IIb) to give (I; Y=alpha-CH2OH; Z=alpha-H; X=H). The CH2OH can then be converted conventionally to other values of X or Y, and opt. the protecting gps. R'1 and R'2 are then removed. Cpds. (IIa) and (IIb) are new, where G+K = double bond and L=H; or G=H and K+L= double bond; R'1 and R'2= OH protecting gp.; (a) X=alpha-CH2OH, to syloxymethyl, Me, CHO, formyldithioalkyl-ketal, 2-14C alkyl or alk-1,2-enyl (which can include additional double bonds); Y=Z=alpha-H; (b) is as in (a); Y =beta-H and Z=alpha-H; (c) X=H; Y is as defined for X in (a); Z=alpha-H; R1 and R2= H or OH protecting gps.. USE/ADVANTAGE - (I) have biological activity; cpds. with 7alpha- or 8alpha- substits. have stronger activity than unsubstd. analogues. This method provides stereoselective introduction of opt. substd. 7/8 alkyl substits. in the alpha configuration, so the troublesome sepn. of alpha/beta forms is avoided.
Patent DE-4020285-A1 (DE)
Inventor: KUEPPERSBUSCH GERD
IPC: B65D77/06
Filed: 1990-06-26
Abstract: A stackable bulk-material packing or container is disclosed, which can have a simple opening for pouring out the contents. The packing uses a folding-box carton with a bag inside it. The bag has an opening for pouring out the contents. The opening has an annular shoulder and is located behind a removable section of the carton. Removal of this section produces an opening in the carton giving access to the opening in the bag. The removal section of the carton is located at one of the upper corners or one of the upper edges of the carton. Because the removable section of the carton and the opening in the bag are co-located at one of the upper corners or one of the upper edges of the carton, the contents do not exert any pressure on them, and the closure can thus be of a simple design.
Patent DE-4022545-A1 (DE)
Title: Solder contact points prodn. on semiconductor contact layer - using structurised oxide film of e.g. silica or alumina as solder stop in simple, quick and economical technique
Inventor: SMOLA JAN DIPL ING
IPC: H01L23/485
Filed: 1990-07-16
Abstract: Application of solder contact points on a contact layer of semiconductor chips produced on a wafer involves providing the entire contact layer with a solder contact point structure. The structure of the contact points (1) is defined by an oxide layer (3), which is applied to the contact layer (3) and etched; and the solder contact points (1) are formed by dip soldering. The structurised oxide film is used as solder stop and pref. consists of Al2O3 or SiO2. A Sn-Pb-Ag alloy solder is used. USE/ADVANTAGE - For applying contact points to a contact layer of laser diode chips (claimed). It is simple, quick and economical.
Patent DE-4030319-A1 (DE)
Title: Fibre-reinforced structures with couplings - comprise reinforced structure, pref. of fibre-reinforced polyphenylene sulphide with enlarged end which forms connection to coupling
Inventor: O'CONNOR JAMES E
IPC: F16C7/00
Filed: 1990-09-25
Abstract: A product (I) is claimed, with (a) a fibre-reinforced thermoplastic composite structure, (b) a fibre-reinforced thermoplastic composite insert, at least part of which is fused with part of (a) so that part of (a) is thereby expanded, and (c) a coupling which is connected with (a) via the enlarged part. (I) is produced by positioning (c) round (a) near the end of (a), heating the end of (a) to at least soften it, and inserting (b) into the heated end of (a) so as to enlarge it and prevent the coupling coming off. Pref., (a) and (b) are of reinforced polyarylene sulphide (II), pref. PPS, and (b) is fused with one end of (a); (c) also contains (II)-composite and is connected with the enlarged end of (a); (I) also has a retaining device connected to (c), to keep it close to the enlarged end of (a); (I) is a pump rod of PPS composite, comprising reinforcing fibres in a PPS matrix. USE/ADVANTAGE - The invention provides coupled structures of fibre-reinforced PPS, esp. pump rods for use in the oil and gas industry, which have adequate mechanical strength but are lighter and more chemically-resistant than corresp. metal structures.
Patent DE-4031806-A1 (DE)
Title: Electrolytic element with negative zinc electrode - and bismuth-coated current conductors giving reduced cell gassing when using mercury-free zinc@
Inventor: CROFTS JOHN DOUGLAS
IPC: H01M4/66
Filed: 1990-10-08
Abstract: An electrolytic element is disclosed, with a negative Zn electrode, a positive metal oxide electrode and an alkaline electrolyte.  The Zn electrode has a current conductor with a metal coating on it surface to reduce gas evolution in the cell. The Zn electrode comprises Zn which is free from Hg, and the basic material of the current conductor is coated with Bi. USE/ADVANTAGE - The element is used in Mn-alkali cells, and also in other alkaline cells with Zn electrode, e.g., Zn-Ag oxide or Zn-air systems. Corrosion problems associated with a negative Zn electrode are overcome using simple means and in a way which is environmentally acceptable, i.e., which avoids the use of Hg.
Patent DE-4032372-A1 (DE)
Title: Ball cleaning device for rolling bearings - has relatively movable opposite bodies containing balls in guide paths
Inventor: RAUBE WOLFHARD DIPL ING
IPC: B08B1/04
Filed: 1990-10-12
Abstract: The ball processing machine for cleaning rolling bearings etc. has two bodies (1,2) which move opposite each other to roll the balls (5) between same in one or more guide paths (4) which have a sinusoidal base and possibly upper curved behaviour. Where the guide paths run along a curve about the rotary axes (3,13) of the bodies the flat wound or projected curvature of the guide path has the sinusoidal base or upper curved behaviour. ADVANTAGE - More complete cleaning of the ball surface where the guide paths are rotationally symmetrical as far as possible.
Patent DE-4032570-A1 (DE)
Title: Preparing implants comprising solid metallic nucleus -  by thermally treating to form oxide layer and coating with hydroxy-apatite
Inventor: DHUPIA GURSEV S DR
IPC: A61K6/04
Filed: 1990-10-13
Abstract: Prepn. of implants (I) consisting of a solid esp. metallic nucleus with a tissue-compatible coating, in which the surface of the nucleus is initially roughened, thermally treated at a suitable temperature to form an oxide layer and then coated with a layer of hydroxyapatite. - Also claimed is (I) in which the metallic nucleus consists of a light metal (alloy) or steel (alloy). - Synthetic or natural hydroxylapatite esp. from algae is used and is applied by plasma spraying. The thickness of the coating is 0.05-0.15 mm and has a porosity of 7-10%. The surface is roughened by sand-blasting and has a roughness of 3-8 micron.
Patent DE-4103848-A1 (DE)
Title: Rotating displacement pump for handling viscous media - incorporates at least one drivable impeller worm rotatably located in cylindrical inner chamber of pump housing
Inventor: KRAEMER HERMANN
IPC: F04C2/107
Filed: 1991-02-08
Abstract: The impeller worm (2) is rotatably located around the pump longitudinal axis (40) in the cylinder inner chamber (3) of the pump housing (4). It is connected at its driveside end with a drive shaft (5) via approximately radially oriented connecting webs (28). The worm is formed from a tube at least partially open on its face side, the inner and outer cover surfaces of which are screw-form. From the end area of the impeller worm turned away from the drive shaft extends a displacement part into the tube interior which is somewhat cylindrical. At its end projecting over the impeller worm the displacement part is connected to the housing inner wall (8) by at least two radially orientated connecting webs (7). USE/ADVANTAGE - A displacement pump for delivery of heavy, viscous liquids.
Patent DE-4104001-A1 (DE)
Title: Continuous cast slab finishing - has stand to compress material at edges directly before rolling for thickness redn.
Inventor: ROHDE WOLFGANG PROF DR
IPC: B21B1/26
Filed: 1991-02-09
Abstract: To roll out thin slabs and strips, from a continuous casting assembly with a cast thickness of 40-70 mm, the slab (4) is initially compressed (6) through dynamic shape changes at the zones (4c,4d) of the material edges (4a,4b). It then passes directly to the first stand (7a) of the finishing roller assembly (7) to be rolled out with a high thickness reduction, taking up to 60%. The composition (6) to change the material shape at the edges (4a,4c) affects the material in a zone (4c,4d) which is up to four times the material thickness. The edges of the material are profiled during the compression (6). ADVANTAGE - The operation prevents cracks or other material damage occurring, particularly at the edges, during the finishing rolling stage.
Patent DE-4119341-A1 (DE)
Inventor: HAHN ERWIN DR
IPC: C25D3/22
Filed: 1991-06-12
Abstract: The invention relates to the production of bright zinc-plated or zinc-alloy-plated shaped parts by the electrolytic desposition or zinc or a zinc alloy from an acidic aqueous galvanic bath containing as its essential components one or more zinc salts and optionally salts of other alloy metals, one or more conducting salts, one or more surface-active agents and one or more brighteners. Used as brighteners are compounds of the formula (I), in which R<1> is a C1-C8 alkoxy, phenoxy, benzyloxy, amino, C1-C6 alkylamino or di(C1-C6) alkylamino group; R<2> is a C1-C4 alkyl, phenyl or benzyl group or one of the groups given for R<1>; Ar is a phenyl or naphthyl group which may be substituted by one to three C1-C4 alkyl or C1-C4 alkoxy groups.
Patent DE-4125351-A1 (DE)
Title: Textile bulked material - comprises pile folds of fibres or nonwovens with outer stitched layers
Inventor: PLOCH SIEGFRIED DR
IPC: D04B21/02
Filed: 1991-07-31
Abstract: The textile material, for insulation/dampening/reinforcement applications, is composed of pile folds of fibres or nonwovens, with stitched layers on the outer sides. Pref. the stitched layers are of identical or different fibres, to give a variety of types, colours, thickness or mixtures. The gap between the stitched layers is set by the height of the pile folds of the first fibre layer, across the stitched wales. The stitched layers are formed by needles of different densities, to give varied wale densities. ADVANTAGE - The material is bulked from separated fibres or nonwovens, is light and with stable surfaces to give high volumes.
Patent DE-4127121-A1 (DE)
Title: Ceramic fibres and ceramic fibre-contg. particle composites - prepd. by blowing air through metal carbide, nitride or oxide in amorphous form or bound to alkyl:sulphamido-carboxylic acid, at specified temp
Inventor: WUESTEFELD ALOYS DR
IPC: C04B35/622
Filed: 1991-08-16
Abstract: In prodn. of ceramic fibres (1) contg. certain metal cpds. (II); the metal component of (II) is combined with non-metallic Main Gp. 4-6 element(s), i.e. C, N and/or O, and (I) are produced by blowing a strong current of air through the metal cpd. (II), in amorphous form or bound on alkylsulphamido-carboxylic acid (III), in a muffle furnace at above 1000 deg. C, to give very fine ceramic fibres 1-10 microns thick. Also claimed are ceramic fibres (I). (II) are binary metal cpds., i.e. borides, carbides, nitrides, or oxides, pref. oxides; (III) are 12-18C n-alkyl-sulphamidocarbocylic acids, pref. with 1-3 C atoms in the carboxylic acid, esp. pref. 12-18C n-alkyl-sulphamido-acetic acid (IIIA); the bound metal cpd. is obtd. from a slurry of the powdered (II) in an aq. soln. of (III), by suspending (II) and drying the suspension; (II) is mixed with a material which has a cellular structure or acquires a cellular structure in the furnace, pref. pumice, pearlite, obsidian or pitchstone, esp. pref. pearlite. USE/ADVANTAGE - Enables the prodn. of particle composites and ceramic fibres with low brittleness, combined with the usual desirable properties, i.e high abrasion resistance, chemical resistance and heat resistance, low thermal and electrical conductivity etc.; the fibre structure the particle composite and opt. the cellular structure are produced under the same thermal conditions by the blowing process (contrast the 3-stage, high-temp. prodn. of expanded pearlite as described in At 391684 B)
Patent DE-4129120-A1 (DE)
Inventor: HENNE RUDOLF DR ING
IPC: B05B7/16
Filed: 1991-09-02
Abstract: A process for coating substrates with heat-resistant polymers is proposed, which polymers are applied by thermal spraying processes with high jet velocity. The polymer is introduced into the relatively cold jet region. As thermal spraying processes, high-velocity flame spraying or atmospheric, vacuum or inert gas plasma spraying processes, in each case modified for high jet velocity, can be used. <IMAGE>
Patent DE-4130630-A1 (DE)
Inventor: DIAS FRANCISCO J
IPC: C04B38/06
Filed: 1991-09-14
Abstract: A process is disclosed for producing porous, through-flowable mouldings made of silicium carbide having low electric resistance, as well as a diesel soot filtering element produced according to this process. An appropriate granulated powder mix, composed for example of coking organic binder, silicium and a nitrogen compound, is moulded into a green body, is coked in an inert gas atmosphere or under vacuum at a temperature between 600 DEG  and 1000  DEG C, then silicated at 1400 DEG  to 2000  DEG C. If the powder mix contains no nitrogen compounds, the green body is silicated in a nitrogen-containing atmosphere. Advantageous embodiments of the invention concern individual details of the powder mix preparation. This process makes it possible to produce a diesel soot filtering element that can be electrically heated up and regenerated.
Patent DE-4131733-A1 (DE)
Title: Mounting for street sign post -  is of hot dipped galvanised metal plate in form of cup and drive in spikes
Inventor: RUCHTI AUGUST
IPC: E01F9/673
Filed: 1991-09-24
Abstract: The mounting for a street sign post comprises a blind socket (3) shaped to receive the end of the post, on the top end of a tapered drive-in spike (4). The spike (4), in cross section, is cross vaned tapering downwards at an angle of about twenty degrees. The mounting is of hot dipped galvanised metal, and of welded plate. The mounting can have radial fixing screws. USE/ADVANTAGE - A simple mounting is rapidly installed.
Patent DE-4136341-A1 (DE)
IPC: E01C13/00
Filed: 1991-11-05
Abstract: Described is a pile-fabric strip floor-covering for sports surfaces, in particular synthetic-grass surfaces. The floor-covering has a substrate which has apertures in it and is therefore permeable to water. Attached to the substrate are pile elements which form the pile, plus a thick elastic layer of plastic material on the underside of the substrate. To increase the water-retention capacity of the floor-covering, the plastic layer is made of open-cell cellular-plastic material, and there is a storage layer with water-retention properties on the underside of the cellular-plastic layer.
Patent DE-4138713-A1 (DE)
Title: Multifrequency ultrasonic oscillator for cleaning process - uses piezoceramic oscillation generator between two identical beams or rods acting as longitudinal resonator
IPC: B06B1/06
Filed: 1991-11-21
Abstract: The ultrasonic oscillator for supplying ultrasonic oscillations to the fluid in a cleaning bath has an oscillation generator (3) between two geometrically identical flexure beams or rods (1, 2) acting as a longitudinal resonator (7). The length of the beams is a whole multiple of the flexure wavelength, or the length of the rods is an odd multiple of half the wavelength at the resonance frequency. Pref. the oscillation generator (3) uses a whole number of piezoceramic elements and lies at the centre of the beams or rods (1, 2). A cleaning frequency of between 20 and 25 kHz is pref. employed. USE - Ultrasonic cleaning of partially coarse and fine (e.g. small bores) structured components, allowing two stage cleaning process. Can be used at various frequencies for cleaning different objects.
Patent DE-4141745-A1 (DE)
Title: Ventilator to cool appts. and components esp. high risk units - has dust and water droplet filter of gauze, profiled rods and mat
Inventor: CONRAD UWE
IPC: H05K9/00
Filed: 1991-12-13
Abstract: In an air ventilator filter within a housing, the filter is a drawn metal gauze, followed by an integral block of transposed profiled rods overlapping each other over the entire width of the gauze; that behind the profiled rods is a sheet metal overflow barrier and a filter mat, and a perforated sheet metal filter. USE/ADVANTAGE - The ventilator filters dust and water droplets from air used to cool equipment and components in high-risk applications.