baber/WOPTO huggingface dataset:
Patent DE-3733307-A1 (DE)
Title: Pump
Inventor: GSCHWENDER ALOIS
IPC: F04D15/00
Filed: 1987-10-02
Abstract: The pump has an outer tube which surrounds an inner tube at a distance, forming an annulus. A pump shaft is mounted in this so that it can turn, and bears a rotor on its lower end. This is located in the vicinity of an intake that can be closed by a valve body. The latter is formed by a sphere that is moved into a position blocking the intake by its own weight or by a spring. The ball presents problems in use and does not ensure reliably that the intake will be sealed perfectly. In addition, the ball hinders pumping. Therefore, this pump is to be designed so that the valve body closes the intake reliably without interfering with pumping. The intake is closed by the valve body by means of a relative displacement between the outer and inner tubes. The valve body is thus forced into its closed or open position, so that the intake is closed reliably. Pumping is not impaired by the valve body, because this no longer has a tendency to move into the closed position if the pumping pressure drops. The pump is used for aspirating liquids.
Patent DE-3735915-A1 (DE)
Title: Heat exchanger
Inventor: RICHTER HEINZ DIPL ING
IPC: F28F1/42
Filed: 1987-10-23
Abstract: The invention relates to a heat exchanger, in particular a fuel cooler, which consists of an inner tube (1) and an enclosing tube (2) arranged concentrically therewith. In this arrangement, a first heat exchange (transfer) medium (cooling agent) flows axially through the inner tube (1), while a second heat exchange medium (fuel) is guided via an inlet opening (4) and outlet opening (6), respectively, through the annular space (3) between the inner tube (1) and enclosing tube (2). The inner tube (1) is constructed as a finned tube having helically wound outer fins (1') and is characterised by the following features:       a) the pitch tR is in the following range: 1.60 < tR < 3.90 mm; b) the fin height hR is in the following range: 0.2 mm < hR < 2.0 mm;   c) the ratio of fin pitch tR/fin height hR is in the following range: 1 < tR/hR < 15; d) the ratio of fin cross-sectional area AR/fin height hR is: AR/hR > 0.5 mm.   The finned tube is preferably provided at the same time with an internal corrugation (Fig. 3). <IMAGE>
Patent DE-3743380-A1 (DE)
Inventor: MANOCHIN ANATOLIJ IVANOVIC
IPC: C21C5/35
Filed: 1987-12-21
Abstract: A steelmaking process in an oxygen-blown converter using ferrous metallic materials in solid form and molten pig iron consists in charging the ferrous metallic materials into the converter, heating them up to a temperature short of the melting point by means of combustion of hydrocarbon and carbonaceous fuels introduced into the converter in a stream of an oxygen-containing gas, where the amount of the hydrocarbon fuel fed from the bottom is confined to a limit of 1.5-6.0 kg of equivalent fuel per tonne of the ferrous metallic materials in solid form subjecting these materials to a homogenizing blast of a neutral gas introduced from the bottom before pouring the molten pig iron into the converter.
Patent DE-3744650-A1 (DE)
Title: Holographic impression method
IPC: G03H1/02
Filed: 1987-12-30
Abstract: A method is specified for applying a hologram to a printing substrate, especially paper or board, using the impression method. According to the invention, a precompressed coated printing substrate (6) is used, onto which a lacquer layer (7) is applied, into which the hologram is impressed by means of metallizing. <IMAGE>
Patent DE-3800309-A1 (DE)
Title: Apparatus for the structuring, patterning and variation of the surface mass of fibre and thread streams
Inventor: OFFERMANN PETER PROF DR SC TEC
IPC: D04H1/70
Filed: 1988-01-08
Abstract: The invention relates to an apparatus for the structuring, patterning and variation of the surface mass of a sheet-like textile fibre or thread stream. Proceeding from the object of providing an apparatus for the structuring, patterning and variation of the surface mass of a sheet-like fibre and thread stream, there is arranged, in this apparatus having a support, feeders and a consolidating device, above or within or below the fibre or thread stream, a stretching element which acts on the latter and which is connected to at least one form-changing drive - bending drive and/or warping drive and/or stretching drive. <IMAGE>
Patent DE-3801798-A1 (DE)
Inventor: LADWIG HORST DIPL CHEM DR
IPC: C09K19/60
Filed: 1988-01-22
Abstract: By the coupling of additional substituents to the dichroitic dye molecule (guest) so that they appear in conjugation with the chromophoric group (exerting a mesomeric and/or inductive effect thereby), a bathochromic or hypsochromic effect respectively is achieved. By these means the absorption of the dye can be intentionally shifted towards the maximum of the ???/ lambda  curve (which depicts the brightness sensitivity of the eye) and their overlap increased giving rise to enhanced contrast. By the incorporation of the substituents laterally, it is possible for the degree of order of the dye in the LC display to decrease with concomitant increase in LC display contrast.
Patent DE-3806018-A1 (DE)
Title: Tube-type interconnected masonry structure (RVMW)
Inventor: ELSNER BERNHARD
IPC: E04B2/10
Filed: 1988-02-26
Abstract: Tube-type interconnected masonry structure (RVMW), in the case of which the blocks of a masonry wall are set one upon the other in the dry state and are later cast with one another.
Patent DE-3809311-A1 (DE)
Title: Thermally insulated pipeline
Inventor: RANK WERNER DIPL ING
IPC: F16L59/12
Filed: 1988-03-19
Abstract: In the case of thermally insulated pipelines which are of a small nominal width and exhibit a metallic core pipe and a mineral-wool insulation between the core pipe and casing pipe, complex precautions have to be taken, in terms of high gas temperatures and pressures, in order to control these conditions. According to the invention, the core pipe (1) is produced from a heat-resistant, porous ceramic or ceramic-like material. The individual core-pipe sections are plugged together by portions which jut out and portions which jut back (10, 12) and are covered over by centring rings (3), these centring rings on the circumference having grooves (5, 6) with inserted snap rings or spring coils which serve to fix the core pipe in the casing pipe (4). The annular space between core pipe (1) and casing pipe (4) is filled with a compressed, fibrous insulating material (2). The thermally insulated pipeline of a small nominal width is intended for hot gases under pressure. <IMAGE>
Patent DE-3811695-A1 (DE)
Title: Process for producing superconducting Nb3Sn layers on niobium surfaces, and appliance for carrying out this process
Inventor: PEINIGER MICHAEL
IPC: H01L39/24
Filed: 1988-04-07
Abstract: Process and appliance for producing superconducting Nb3Sn layers on the inner surfaces of niobium hollow bodies. The niobium sheets should have high thermal conductivity at low temperatures, which is retained even after a coating treatment at high temperatures. In order to avoid, during coating, a diffusion of oxygen into niobium, there is maintained, outside the hollow bodies, a partial pressure of a getter metal, especially titanium. <IMAGE>
Patent DE-3811758-A1 (DE)
Title: Device for separating off pollutants from the exhaust air of carpet production plants
Inventor: CHRIST MICHAEL DIPL ING
IPC: B01D46/00
Filed: 1988-04-08
Abstract: A device (11) for separating off pollutants from the exhaust air of plants (12) for coating the rear of carpets has an apparatus (45) for prefiltering and a final filter device (83), each of which are formed by at least two separate units (13, 14 and 44, 54; 81, 82), of which each is assigned to individual or combined exhaust air streams (I-VII) of the plant (12) which are ordered according to different loads and/or to temperature ranges. To separate off condensable pollutants and solid particles, each unit (44, 54) of the apparatus (45) of prefiltering the exhaust air is formed by at least one heat exchange stage (44, 54) which is furnished with a condensate take-off (78, 79). In this manner, such a device (11) can take into account, in its structural design, the different process technologies in the individual sections of a plant whose exhaust air fumes are to be cleaned of pollutants. <IMAGE>
Patent DE-3812354-A1 (DE)
Title: Rubber
Inventor: TIRPITZ WOLF V DR
IPC: C08L15/00
Filed: 1988-04-14
Abstract: In order to achieve a smaller change in volume V and greater strength, in particular greater tear propagation strength W' and tensile strength Z', in a rubber, in particular a gasket (seal) rubber containing a first base mixture containing silicone rubber as principal constituent, after use of the rubber in hot oil, it is ensured that the first base mixture is mixed with a second base mixture containing hydrogenated nitrile rubber as the principal constituent, in a ratio of from 10 to 90 to 90 to 10 percent by weight. <IMAGE>
Patent DE-3815277-A1 (DE)
Title: Suction box
Inventor: SOLLINGER HANS-PETER
IPC: B65H19/18
Filed: 1988-05-05
Abstract: At the connection point of a device for connecting the ends of two fabric webs, the suction box 12 located there has a leaf spring 13 for extension towards the connection point. A better web stabilisation for the cut-off end of the old fabric web 3 is thereby achieved by means of a larger region of negative pressure which extends further towards the connection point than otherwise. <IMAGE>
Patent DE-3815649-A1 (DE)
Title: Surgical instrument for fixing freely floating or partially fixed tissue parts
Inventor: GROEBEN KURT DR MED
IPC: A61B17/28
Filed: 1988-05-07
Abstract: There is described a surgical instrument that can be inserted through small transcutaneous accesses for fixing freely floating or partially fixed tissue parts for arthroscopy or transarthroscopic operations on joints, especially the knee joint. The instrument comprises a clamping part for gripping the tissue part, a holding and tensioning member connected to the clamping part and having the shape of a thin wire or thread, an insertion member for insertion of the clamping part with the holding and tensioning member through the transcutaneous access into the region of the tissue part, and an actuation member for the clamping part for fixing the latter to the tissue part, where the clamping part and insertion member are connected to one another via a releasable connection. <IMAGE>
Patent DE-3817578-A1 (DE)
Title: Process for microfiltration and ultrafiltration and for reverse osmosis and apparatus for carrying out this process
IPC: B01D63/16
Filed: 1988-05-24
Abstract: In the process for microfiltration and ultrafiltration and for reverse osmosis, a feed (24) is separated by means of at least one membrane (7, 7', 40) by a cross-flow, using a pressure difference between the membrane outside and inside. Each membrane (7, 7', 40) is constructed as a hollow body and is completely enclosed by the feed (24). Each membrane is rotated in the feed. The apparatus for carrying out this process has a vessel (2) for the feed (24) and at least one membrane (7, 7', 7'', 40) in the form of a hollow body which is covered by the feed and is driven to rotate. <IMAGE>
Patent DE-3837844-A1 (DE)
Title: Arrangement of the stator in the motor housing of electric tools
Inventor: LANGHOFF BORIS ING GRAD
IPC: H02K1/18
Filed: 1988-11-08
Abstract: As a result of temperature and the influence of moisture, the dimensions of electric tool motor housings consisting of plastic are frequently enlarged such that position displacements of the stator in the motor housing are possible. In order to preclude the risk of such position displacements of the laminated stator core in the motor housing, the laminated stator core (11) is held in the motor housing (13) with play in the direction of the three axes (x, y, z) of said laminated stator core (11). <IMAGE>
Patent DE-3838124-A1 (DE)
Inventor: GEYER GERHARD DIPL ING
IPC: F02D1/18
Filed: 1988-11-10
Abstract: An injection timer with which the angular position of an output shaft (3) relative to a drive shaft (2) can be altered in dependence upon operating characteristics, comprises two pairs of eccentrics, which act as an adjusting mechanism and which each comprise an adjusting eccentric (11) and a compensating eccentric (12), the adjusting eccentric (11) being guided by means of a pin (27) moulded onto each intermediate member (19) and two levers (25) moulded onto each intermediate member (19), which are guided in outwardly directed transverse grooves in the outer end faces (26) of adjusting pistons (16) disposed in a piston carrier (15). Two of the hydraulically actuatable adjusting pistons (16) are respectively disposed in parallel on one side of the timer and are connected by one of the levers (25) respectively to one of the intermediate members (19), and by way of the latter to an adjusting eccentric (11). As a result of changes in the position of the adjusting pistons (16) caused by the hydraulic medium, the adjusting eccentrics (11) can be turned to change the injection timing. <IMAGE>
Patent DE-3839035-A1 (DE)
Inventor: SCHAPER HANS-HEINRICH
IPC: G01N30/96
Filed: 1988-11-18
Abstract: The invention concerns a method for the chromatographic determination of monovalent and polyvalent cations, in particular for the simultaneous determination of alkali and alkaline earth ions in wine or mineral water. At least one polybasic carboxylic acid with a hydrophobic residue is applied to a reversed-phase column so that at least a part of the stationary phase of the column is coated with the carboxylic acid. The substance containing the cations to be determined is then applied to the column and the cations are eluted from the column with an eluent. The column is advantageously coated with at least one alkylsuccinic acid. The polybasic carboxylic acids used to coat the column can be substituted in the  alpha -position of the carboxyl groups with a substituent having a - I or a - M effect. The invention also concerns a reversed-phase material coated with the polybasic carboxylic acid as well as a particularly advantageous solution for applying and eluting the reversed-phase material.
Patent DE-3842390-A1 (DE)
Title: Control device for driving valve units
Inventor: SCHWEBEL ADOLF
IPC: B65H3/08
Filed: 1988-12-16
Abstract: The invention relates to a control device for driving valve units 12, by which pressure and subatmospheric-pressure consumers of a machine processing sheets can be connected to or separated from a pressure or subatmospheric-pressure source in the work cycle of the machine. The cycle frequency of the work cycle can be varied between a minimum cycle frequency and a maximum cycle frequency. The cycle frequency of the work cycle frequency can be detected by a sensor arrangement 8 and a corresponding signal can be supplied to a control unit 9. In the case of a cycle frequency which is greater than the minimum cycle frequency, the valve units 12 can be driven in a leading manner relative to the work cycle by the control unit 9. <IMAGE>
Patent DE-3843134-A1 (DE)
Title: Clutch release device with a plastic sliding sleeve
Inventor: LIMBACHER BERNHARD
IPC: F16D23/14
Filed: 1988-12-22
Abstract: The invention relates to a clutch release device, the non-revolving bearing ring of which is connected to a plastic sliding sleeve. During the process in which the sliding sleeve is injection-moulded, the moulding material flows around the radially inner region of the bearing ring, thus establishing positive engagement between the two components. To provide a better connection between the two components, the bearing ring is of dovetail design, at least in the region around which the moulding material flows.
Patent DE-3901284-A1 (DE)
Title: Valve
Inventor: STOLL KURT DIPL ING
IPC: F16K27/08
Filed: 1989-01-18
Abstract: The invention relates to a valve with a valve housing (1) and a valve element (20) arranged adjustably thereon. The said valve element is connected to a fastening portion (23) to which an adjusting tool (32) can be applied from outside. A protective part (25) is provided and this can be arranged removably on the valve housing, where it covers the actuating portion (23). Connected permanently to the protective part (25) is an adjusting tool (32) which, with the protective parts (25) removed from the valve housing (1), can be applied to the actuating portion (23). <IMAGE>
Patent DE-3902410-A1 (DE)
Inventor: WEIMEL ERICH
IPC: A61B3/12
Filed: 1989-01-27
Abstract: An apparatus for examining and treating the eye comprises an observation device (6) which is directed into the patient's eye (9), a lamp and a laser which direct radiation, via an optical deflection device (12), into the eye in order to illuminate and treat the eye. To ensure rapid and precise displacement of the irradiated region of the eye, the optical deflection device is designed as an electrically controlled scanner system (11 ... 19) with deflection along two mutually perpendicular axes.
Patent DE-3905514-A1 (DE)
Title: Signal transmitter unit, in particular alarm system for detecting changes in the load on parts of land or buildings
Inventor: BURT OLIVER
IPC: G08B13/20
Filed: 1989-02-23
Abstract: A signal transmitter unit, in particular alarm system for detecting changes in the load on parts of land or buildings has at least one pressurised hollow body and a device for measuring and evaluating the various pressures. This system is characterised in that the measuring device (34) registers the pressure which in each case actually prevails and in that the evaluation device (36) determines the relative rise or reduction in pressure for any predeterminable time interval and compares the calculation value thus determined with a predeterminable comparison value and triggers the signal (38, 39, 40) when this comparison value has been reached or exceeded. <IMAGE>
Patent DE-3906771-A1 (DE)
Inventor: BAUS ULF DR
IPC: A01N43/653
Filed: 1989-03-03
Abstract: Compounds of the general formula   <IMAGE> I  where X is CH2 or O, Y is hydrogen, alkyl, alkoxy, halogen, aryl or aryloxy and n is from 1 to 5, and their salts and complexes, and fungicides containing these compounds.
Patent DE-3916510-A1 (DE)
Title: Cable tie, hose tie, line tie
Inventor: KREIS MANFRED
IPC: F16L3/223
Filed: 1989-05-20
Abstract: The invention relates to a cable tie, hose tie or line tie for simultaneously holding a plurality of cables, hoses or lines. It has an essentially cylindrical body on whose circumference a plurality of spring clamps 2, 3 are integrally formed which are open on the outside and are aligned parallel to one another. <IMAGE>
Patent DE-3918423-A1 (DE)
Title: Double layer through-hole coupled rigid and flexible circuits - have support boards coupled together using adhesive bond to secure flexible unit in slot
Inventor: MUENZBERG ROLAND
IPC: H05K3/42
Filed: 1989-06-06
Abstract: The two layer circuit board unit has a rigid board (1) that has a through hole contact arrangement (2) for connection of tracks on both sides. The rigid board is connected to a flexible board (5) that is inset into a slot formed in the edge of the rigid board. The flexible board has a through hole contact bush (6) that aligns with that of the rigid board. The two boards are secured together by an adhesive bond (4). ADVANTAGE - Economical means of connecting flexible and rigid circuit boards.
Patent DE-3918828-A1 (DE)
Title: Twisted nematic cell type LCD - has greater view angle in larger operating temp. range with less background noise
Inventor: BADER OTTO DIPL PHYS
IPC: G02F1/139
Filed: 1989-06-09
Abstract: An LCD device has a TN cell (1) between polar filters. They (3, 4) are linear and are either parallel or crossed depending on whether positive or negative depiction is intended. Each filter (3, 4) has a degree of polarisation between 85 percent and 98.6 percent. The cell (1) has a nematic, twisted layer (2).  The twist angle between the two layer surfaces is between 70 and 100 deg. Transparent electrode films are arranged on both sides of the liquid crystal layer (2) and a drive voltage is applied through which the optical transmission characteristics of the layer (2) are varied. The path difference d x deltan of the cell (1) is relatively small, preferably 0.4 to 0.6. USE/ADVANTAGE - Reflective, transmissive or transreflective devices, for positive or negative depiction. Increased angle of view with reduced amplification of background noise over larger operating temp. range. Better contrast. Reduced change in background noise with large temp. changes.
Patent DE-3919263-A1 (DE)
Inventor: COUNTANDIN JOCHEN DR
IPC: B29C33/38
Filed: 1989-06-13
Abstract: Mechanically robust star couplers of polymer optical waveguides having low insertion losses and small fluctuations between the individual output fibers are obtained if polymer optical waveguides are arranged in parallel in the middle region of an apparatus and fused with one another under pressure and with the supply of heat. The optical cladding of the polymer optical waveguides has been previously removed. The method is easy and cost-effective. The apparatus is composed of a lower part with a channel recessed therein and an upper part with a male die located therein, which male die corresponds in its shape to the shape of the channel.
Patent DE-3923429-A1 (DE)
Title: Automatic door opening system for apartment building - has rest contact in door opening line providing feedback signal to display stage in series with opening button
Inventor: HILLEY GARVIN
IPC: G08B5/36
Filed: 1989-07-15
Abstract: The door opening system allows the main door to be opened upon operation of a door opening button (1) provided in each apartment, upon the caller being interrogated via an intercom system. The opening and subsequent re-closing of the door is detected via a rest contact (6) inserted in the door opening line (4), with a display stage (3) provided in series with the door opening button (1) within each apartment. Pref. the rest contact (6) is provided by a sensor responding to the door being opened, the delay stage (3) pref. using a LED in parallel with a resistor. ADVANTAGE - Provides feedback signal when door is opened.
Patent DE-3925653-A1 (DE)
Inventor: TINNEFELD BERND
IPC: B65G45/02
Filed: 1989-08-03
Abstract: A mobile lubricating appliance for tubular track permits rapid lubrication even during operation. A support (1) holds and guides the lubricating appliance by means of a tubular track (2) during lubrication. Rollers (4) are supported on at least two bearings (3) which rotate independently of each other about an approximately vertical axis. A holding device (5) for a lubricant reservoir is located below the support (1) and a lubricant line (6) with a nozzle at one end leads from the holding device (5) to the support (1).
Patent DE-3927616-A1 (DE)
Title: Float forming cover for fluid tanks - is circular with protruding circumferential strip linking with other strips to close gaps
Inventor: BENNEMANN KARL PROF
IPC: B65D88/36
Filed: 1989-08-22
Abstract: The float which is designed as an anti-evaporation cover forming a protective barrier layer for the surfaces of liquids in containers is designed as a substantially circular hollow or solid body wherein in the middle plane of the float there is a circumferential flange-like edge strip (2) which extends in the plane of the centre plane. The edge strip (2) pref. lies at a distance above the fluid e surface layer.  The width of the edge strip (2) is pref.  a quarter of the diameter of the hollow body (1). ADVANTAGE - Even the areas between adjoining floats can now be safely covered.