baber/WOPTO huggingface dataset:
Patent DE-3804217-A1 (DE)
Inventor: SCHEIDEL WOLFGANG ING GRAD
IPC: F01P5/06
Filed: 1988-02-11
Abstract: An axial fan, preferably for cooling an internal combustion engine in a motor vehicle, comprises an intake frame (2b) arranged in front of the impeller (12) when viewed in the direction of flow of the medium and a ring (20) arranged at the free ends of the impeller blades and surrounding the blade ring. The face of the ring (20) exposed to the flow is flared like a funnel, so that an axial gap (28) is created between the frame (26) and the ring (20). To obtain a particularly quiet axial fan, even in the absence of relatively close tolerances between impeller (12) and intake frame (26), the fan is provided with an outer ring (30) extending from the intake frame (26) in the direction of flow of the medium at least as far as the funnel rim (32) of the impeller ring, so as to create a radial gap (34) between the impeller ring and the outer ring (30).
Patent DE-3806590-A1 (DE)
Title: Heating boiler with a stepped flame-deflecting pot
Inventor: HIRSCH WOLFGANG
IPC: F24H1/26
Filed: 1988-02-26
Abstract: Heating boilers are known in which a flame-deflecting pot deflects the flue gases so that they subsequently flow in small channels between ribs on the inside of the water jacket to the waste-gas collector. In this arrangement, various flow conditions are set up in the channels. More uniform flow conditions are to be obtainable by means of a sloping pot bottom, which results in a different length of the channels. According to the invention, it is envisaged to achieve a more intense cooling of the flame and hence a lower nitrogen-oxide emission by means of a recess (25) in the pot shell (21) and by deflecting the flue gas out of the upper part of the deflection pot (2) to the beginnings of the channels (12) in the lower part. The invention further envisages blocking off the upper channels (121) by means of a lengthening (23) of the pot shell (21) reaching as far as the rear wall (36) in order to achieve an increased flow of the flue gas through the channels (12) situated in the lower part and thereby better heating of the colder water in the lower part of the water jacket (1). <IMAGE>
Patent DE-3808021-A1 (DE)
Title: Method and plant for mixing material
Inventor: HEINEMANN OTTO DIPL ING
IPC: B01F15/02
Filed: 1988-03-10
Abstract: The invention relates to a method and a plant for mixing a plurality of flows of fine-grained material using a mixing reactor to which the material flows are fed pneumatically by conveying devices, the conveying capacity of which can be adjusted before the start of the conveying operation, the conveying capacity being controlled so as to be constant during the conveying operation by means of the difference between the pressure in the mixing reactor and the bottom pressure of the individual conveying devices.
Patent DE-3808464-A1 (DE)
Inventor: TSUYAMA KENJI
IPC: H02K13/10
Filed: 1988-03-14
Abstract: A commutator device for electric motors has a commutator with a plurality of commutator segments (4) with which sliding contact is made by brush shoes (2) of blushes (1) formed of electrically conductive metallic strips and having a cross-section forming linear edges which make sliding contact with the commutator. Separating grooves (5) between the commutator segments (4) are formed into a crank shape so that the flow of current from a brush to the commutator is not interrupted. The cross-section is preferably V-shaped, with said linear edges defined either at the distal or the proximal ends of the legs of the V. <IMAGE>
Patent DE-3810789-A1 (DE)
Title: Shower head having rotating brushes
IPC: B05B3/04
Filed: 1988-03-30
Abstract: The invention proposes a shower head having rotating brushes consisting of durable material, in which shower head rotating brushes 7 are attached on at least one side. The brushes 7 are connected to one or more drive vanes by means of an axle. <IMAGE>
Patent DE-3811430-A1 (DE)
Title: Variable gear mechanism with circular translation
Inventor: ARNDT FRANZ MARTIN
IPC: F16H3/42
Filed: 1988-04-05
Abstract: Published without abstract.
Patent DE-3813691-A1 (DE)
Title: Inductive sensor
Inventor: NOWAK RAINER DR ING
IPC: F15B15/28
Filed: 1988-04-22
Abstract: An inductive displacement sensor with a measuring inductance exhibiting a first measuring coil, a second or redundant measuring coils which detect the measuring distance of a measuring cone being provided for achieving redundancy.
Patent DE-3813742-A1 (DE)
Title: Method for introducing additional heat into the solid combustion in the circulating fluidised bed
Inventor: BAGUSS INGOLF DIPL ING
IPC: F23C1/00
Filed: 1988-04-23
Abstract: During normal operation, fine-grained and dust-like solid fuel and combustion air are fed to the combustion chamber of a circulating fluidised bed. Outside normal operation, heat is generated in the combustion chamber by a burner operated with liquid or gaseous fuel. In this case, the liquid or gaseous fuel is guided through a pipe with a flameless jet into the combustion chamber and the flame of a pilot burner operated with gaseous or liquid fuel is directed into the flameless jet. The combustion air arrives via the supply serving for normal operation.
Patent DE-3814346-A1 (DE)
Inventor: WAECHTLER ANDREAS DR
IPC: C07D213/16
Filed: 1988-04-28
Abstract: Compounds of formula (I), wherein A denotes a pyridine ring, are particularly useful as components of liquid-crystal.
Patent DE-3820127-A1 (DE)
Title: Yarn and process for producing it
Inventor: MAWICK PETER DR
IPC: D02G3/44
Filed: 1988-06-13
Abstract: The invention provides a yarn consisting of at least one textile thread which contains metal fibres and other fibres which can particularly, but in no way exclusively, be synthetic fibres. The predominant part of the metal fibres or the total content of metal fibres is arranged in the inner cross-sectional region of the textile thread. The outer cross-sectional region of the textile thread, which encases the inner cross-sectional region, is produced predominantly or solely from skin-compatible fibres. The yarn, which can consist of the said textile thread itself or be a twine produced by using one or more such textile threads, can be processed to form physiologically compatible easy-care fabrics or knits for the shielding of electromagnetic radiation which can easily undergo further processing.
Patent DE-3823864-A1 (DE)
IPC: C12P13/00
Filed: 1988-07-14
Abstract: The enzymatic reaction of aliphatic, aromatic or heteroaromatic aldehydes or ketones with hydrocyanic acid to give the corresponding (R)-cyanohydrins or (S)-cyanohydrins is carried out in aqueous medium in the presence of (R)-oxynitrilase (4.1.2.10) or oxynitrilase (4.1.2.11) under conditions which are sufficiently acid and at temperatures such that the chemical competing reaction and the racemisation are negligible compared with the enzymatic synthesis. The process is preferably carried out at pH values </= 4.5 and, in particular, at reaction temperatures between -5 DEG C and +50 DEG C. The reaction is preferably carried out continuously, especially in an enzyme membrane reactor. The reaction of aromatic aldehydes to give the corresponding optically active cyanohydrins is of particular interest.
Patent DE-3835144-A1 (DE)
Title: Ball valve with a non-return device
Inventor: HECKING WILLI
IPC: F16K5/06
Filed: 1988-10-15
Abstract: A ball valve with a non-return device (68) contains a valve housing (10) with an inlet channel (28) and an outlet channel (16) coaxial with the latter, and with a closing-body cavity (32) formed between them. Arranged in the closing-body cavity (32) is an essentially spherical valve-closing body (38) which is rotatable by means of a handle (60) about an axis of rotation (92) perpendicular to the axes (30) of the inlet channel (28) and outlet channel (16). The valve-closing body (38) forms a diametral passage channel (62). Arranged in the passage channel (62) is a non-return device (68) which subdivides the passage channel (62) into an inlet-side and an outlet-side portion (64 and 66). Provided on the valve housing (10) is a lateral outlet which, in a test position of the valve-closing body (38), is connected to the inlet-side portion (64) of the passage channel (62), the outlet-side portion (66) of which is itself connected to the outlet channel (16) in the test position. The lateral outlet has a test connection piece, in which a moulding provided with a longitudinally extending emptying channel is axially guided adjustably between an outer, a middle and an inner position. In the outer position, the moulding is located with its inner end freely outside the valve-closing body (38). In the middle position, the moulding [lacuna] with its end sealingly in the inlet-side portion (64) of the [lacuna]... Original abstract incomplete. <IMAGE>
Patent DE-3836619-A1 (DE)
Title: Method and device of removing brackets of an electrically non-conducting material stuck on to a dental surface
Inventor: HOHMANN WOLFGANG PROF DR ING
IPC: A61C7/02
Filed: 1988-10-27
Abstract: For removal of brackets of electrically non-conducting material stuck on to the dental surface there is proposed an enveloping part of an electrically conducting material which is inverted over the brackets on removal and heated via an electrical resistance heating. <IMAGE>
Patent DE-3836990-A1 (DE)
Title: Safety monitoring circuit
Inventor: GAIGL DIETMAR DIPL ING
IPC: H02H5/04
Filed: 1988-10-31
Abstract: A safety monitoring circuit for a temperature of an output stage of a variable-speed electric-motor drive, in which the rotational speed is set via a control device and an output stage using a duty ratio, measures the temperature of the output stage using a thermistor (temperature-variable resistor). A comparator compares the temperature of the output stage with a limit temperature and alters the duty ratio such that the heat loss which is dissipated by the output stage and depends on the duty ratio is reduced.
Patent DE-3837108-A1 (DE)
Title: Method of directly rebasing dentures with functional shaping in one session
Inventor: FATH BRUNO DR MED
IPC: A61C13/07
Filed: 1988-11-02
Abstract: Use of light-polymerizable plastic in rebasing of dentures permits a true impression of the jaw even by the long-term method. Polymerization can also be effected stepwise. In this way, the viscosity of the plastic can be influenced. Control and any correction are possible immediately after making the polymerization by the same method. Laboratory technical processing in the intervening period by the conventional technique (preparation of a model, pressing, etc.) is superfluous. Thus, there are less sources of error and rebasing can be done in one session.
Patent DE-3838984-A1 (DE)
Title: Mould for shaping a preform
IPC: B29C49/56
Filed: 1988-11-18
Abstract: A mould for shaping a preform into a hollow body by the stretch-blow-moulding process has two mould halves, which can be moved during closing towards each other about a common swivel axis. These mould halves enclose a cavity receiving the hollow body. They have an interlocking closure and act one on the other by mutually facing boundary surfaces. The mould halves have a control, which controls their swivelling movement and is aimed at controlling the closure. The mould halves are arranged in such a way that they can swivel about a swivel axis which runs approximately parallel to a centre axis. The closure is provided on a boundary of the mould halves lying opposite the swivel axis with respect to the centre axis. The swivel axis defines with the centre axis a perpendicular plane in which an advancing movement introducing the preform into the cavity is intended. The mould halves have a base, which terminates them jointly in the direction of the preform expanding into the cavity and is arranged movably with respect to the mould halves.
Patent DE-3843180-A1 (DE)
Inventor: ERHARDT DIETMAR DIPL ING
IPC: D04H1/74
Filed: 1988-12-22
Abstract: In order to detect and correct folding errors during the manufacture of a web of multi-layer non-woven fabric by a folding machine in which a web of single-layer non-woven fabric is fed to a belt conveyor transversally to its direction of motion and laid alternately back and forth on the belt conveyor so as to form a multi-layer web, the thickness of the multi-layered non-woven fabric and/or its mass per unit area are continuously measured. The measurement signal is automatically monitored, preferably after a Fourier transformation, in order to detect disturbances in the form of periodic fluctuations in the signal amplitude. The speed of the belt conveyor and/or the feed rate of the web of single-layer non-woven fabric and/or the feed width of the web of single-layer non-woven fabric and/or the width of the web laid on the belt conveyor are adjusted so as to minimize the periodic fluctuations in the signal amplitude.
Patent DE-3844471-A1 (DE)
Title: Distributing bell for bar-steel rolled stock
Inventor: ROETTGER JUERGEN DR ING
IPC: B21B39/18
Filed: 1988-12-31
Abstract: The invention relates to a distributing bell for bar-steel rolled stock, which distributing bell is arranged directly in front of bar-braking devices, in particular centrifugal-force braking devices, in small section mills having cooling bed shears which cut to the finished length. The aim of the invention is to improve the mass-output ratio of the approach region of cooling beds. The device according to the invention consists of an exchangeable three-part guide tube which is arranged in a specially constructed housing. <IMAGE>
Patent DE-3905753-A1 (DE)
Title: Process and device for the denitrification of water
Inventor: WERNER HORST DIPL ING
IPC: C02F3/28
Filed: 1989-02-24
Abstract: A process and a device operating according to this are proposed for the denitrification of water. The water is continuously circulated, in particular by means of trickling filters such as rotating biological contactors or disc contactors, at least some of the water circulation region being hermetically sealed from the atmosphere and gases, such as biogases, alkanes or the like being introduced into the sealed off region. As a result of the rotary movement of the trickling filter, the gases are incorporated into the water, in which case they act here as carbon donors and thus induce the denitrification process. <IMAGE>
Patent DE-3908900-A1 (DE)
Title: Novel substituted alkynyl phenylacetates, their preparation, and their use as pesticides with an insecticidal and acaricidal activity
Inventor: BUEHMANN ULRICH DR
IPC: A01N37/10
Filed: 1989-03-15
Abstract: Described are novel substituted alkynyl phenylacetates of the general formula I <IMAGE>  in which R<1>, R<2>, R<3> and R<4> have the meanings given in the description, and processes for their preparation. The compounds according to the invention can be used as pesticides, in particular against insects and mites.
Patent DE-3913392-A1 (DE)
Inventor: MEHNER GOTTHILF
IPC: A61M39/00
Filed: 1989-04-24
Abstract: A connector (1) for catheters is proposed, this connector having a valve formed by a cup-shaped valve body (3) of elastomeric material, which is longitudinally displaceable to a limited extent in the through-channel (2) and whose base (5) has at least one central slot (6), and by a truncated cone (7) which is directed towards the base and has a central through-opening. <IMAGE>
Patent DE-3919572-A1 (DE)
Title: Laser beam intensity profile measuring arrangement - using detector in focussed beam, low transmission focussing lens and deflection mirror for high powder beams
Inventor: SCHOTTELIUS HORST-ULF DIPL PHY
IPC: G01J1/42
Filed: 1989-06-15
Abstract: The profile measuring arrangement has a detector (14) arranged in the reflection section of the laser beam (12) after deflection of the focussed beam by a vibrated mirror (36). The detector output provides a signal corresp. to the intensity of the laser beam incident on the detector. The cross section of the beam in the detector plane is greater than that of the detector.  The focussing lens (32) has a low transmission characteristic or is suitably coated. ADVANTAGE - Enables accurate measurement of high power laser beam intensity profiles without degrading focus control.
Patent DE-3920239-A1 (DE)
Title: Mechanism for opening fan light - has screwed spindle drive which engages sliding nut connected to opening mechanism
Inventor: KOHLER EGON
IPC: E05F11/34
Filed: 1989-06-21
Abstract: A window, especially a fanlight, is opened or closed by means of a screwed spindle drive. The screwed spindle (27) is rotated by an attached handle and engages a nut (28) which is connected to the window opening mechanism. The nut (28) slides vertically in a guide formed by a U section, or C section or L section. In the case of a U section or C section being used, the nut (28) is guided on three sides. The length of the guide exceeds the length of the nut by a distance which is at least equal to the travel of the nut. USE - Opening mechanism for fanlights.
Patent DE-3926229-A1 (DE)
Inventor: FISCHER ARTUR PROF DR
IPC: F16B13/04
Filed: 1989-08-09
Abstract: 2.1. Metallic expansion plugs, with an expansion sleeve and an attachment shank, can be anchored in a positively locking manner in drilled holes with an undercut. The driving-in process can be carried out by means of a hammer drill. 2.2. In order to prevent the expansion sleeve rotating at the same time during the driving-in process, a weak point is provided between the expansion region and the attachment shank, which fractures when the expansion sleeve is stressed in the drilled hole. <IMAGE>
Patent DE-3929657-A1 (DE)
Inventor: ENZINGER KURT
IPC: B23Q37/00
Filed: 1989-09-06
Abstract: Vertical spindle head, in particular for attachment to a lathe, the vertical spindle head (17) comprising a vertical column (18) and a motor-driven vertical spindle (21) arranged thereon so as to be vertically adjustable on the vertical column (18). The vertical column (18) is a hollow column on which a spindle housing (20) is mounted in a vertically displaceable manner. Fastened to the spindle housing (20) is a tension band (24) or the like which is run over a deflection roller fastened to the top end of the vertical column (18) and the free end of which is connected to a tension spring (28) arranged and anchored in the interior of the hollow vertical column (18), means supported on the vertical column being provided for the vertical adjustment of the spindle housing (20) along the vertical column. The means for the vertical adjustment of the spindle housing (20) comprise a rotatable, drivable vertical leadscrew (30) which is mounted at the top end of the vertical column (18) in a rotatable and axially fixed manner and which interacts with a spindle nut (32) firmly arranged in the spindle housing (20). 
<IMAGE>
Patent DE-3931979-A1 (DE)
Title: Finding geographical position by digital measurement of height of sun - storing digital time of day with digital sun height measurement to ascertain longitude and latitude for navigation
Inventor: DUJAN BERISLAV DIPL ING
IPC: G01C1/08
Filed: 1989-09-26
Abstract: To increase the measuring accuracy several pairs of the measurement pairs are digitally made and the mean value derived by an evaluating electronic unit and digitally stored for further evaluation. The ephemevis time and meridian of the sun are calculated by a known algorithm and digitally stored. The assumed position is manually entered and the values for azimuth and the differences in height of sun between the digitally measured and calculated values derived by means of the evaluating electronics and known and stored spherical trigonometric formulae. The astronomic position is thus ascertained, stored and displayed if desired. USE/ADVANTAGE: Easily used, reliable, rapid and sufficiently accurate to ascertain geographic position.
Patent DE-3937636-A1 (DE)
Title: Reusable, releasable ball coupling of efficient manufacture - has elastically deformable block contg. ball seal and elastically deformable vane fitting
Inventor: FRACASSO GUISEPPE
IPC: F16C11/06
Filed: 1989-11-11
Abstract: The releasable ball coupling has a guiding (2) and a guided (3) organ with between them a ball linkage with a spherical seat carried by the second organ.  An elastically deformable block (7) is held in an aperture (14) in the second organ by elastic elements. The block has a number of deformable vanes (11) which partially bound the seat and a narrowing insertion cup (13) for the seat.  The aperture size is such as to prevent outward deformation of the vanes and a resulting expansion of the insertion cup when the block is inserted into the second organ. USE/ADVANTAGE - The coupling is suitable for use where simple coupling assembly using relatively low forces is required and where the coupling must be efficiently manufacturable, removable and reusable.
Patent DE-3937885-A1 (DE)
Title: Viewfinder for still, video or cine camera - provides different field condensing lenses for selectable field of view and focus and adjusting lens
Inventor: MUELLER ROLF DR
IPC: G03B19/20
Filed: 1989-11-10
Abstract: The viewfinding system for optical observation appts., esp. a camera, has a reflex mirror system which projects the image from the taking lens onto the adjusting lens. A viewing system includes a field condensing lens for observation of the focus and field of view adjusting lens. Various kinds of the latter (2) are provided or acceptable. A specified field condensing lens (3) is assigned to each type of adjusting lens. The latter can be a matt disc and/or a plate of optical fibres.  In a cine camera, a rotating mirror shutter (10) deflects the beam from the taking lens to the film plane (11) or periodically to the viewfinder beam path. ADVANTAGE - Offers use of different adjusting lenses to give cleareSt VieW WilhOu rQUirin rfOCuS in in Viewin System.
Patent DE-3942226-A1 (DE)
Title: Transparent composite fibre material optical refraction test system - has test body illuminated arrangement, deflection light detectors at fixed points and body movement arrangement
Inventor: HENTSCHEL MANFRED DIPL PHYS DR
IPC: G01M11/08
Filed: 1989-12-21
Abstract: The method of non-destructively testing transparent composite fibre material involves using optical transmission and return beams, angle and orientation-independent refraction and reflection effects at transparent fibres, boundaires and surfaces. A test body is illuminated by a light beam, the light deflected by it is detected at several points in space and continuously recorded and the test body is moved wrt. in illumination beam.  The light signals from the selected positions are continuously checked against each other. ADVANTAGE - Enables continuous non-destructive testing of composite glass fibre material and graphic display of results.
Patent DE-4001134-A1 (DE)
Title: Halogen light - has leaf-springs on periphery of pot shaped casing to clamp into cavity
Inventor: HALEMEIER ECKHARD DIPL ING
IPC: F21V21/08
Filed: 1990-01-17
Abstract: The halogen light has a cover ring (38) covering the edge (32) of the reflector and the edge (14) of the casing. The outer periphery of the pot-shaped casing (12) of the light has leaf springs (36) to clamp the casing into a cavity. The edge (32) of the reflector (26) is attached to an outward-projecting flange (14) on the casing by rivets (34), to which also is riveted one of the leaf springs (36). A holder (22) for the halogen lamp is fixed into the casing by a retaining angle (16) riveted to the bottom of the casing.  This fixing is such that the lamp extends axially along the casing through an opening (28) in the reflector. Clamping springs fix the cover ring (38) to the casing. These  (leaf-like) springs are riveted to the cover ring. ADVANTAGE - Simple to make and instal.