baber/WOPTO huggingface dataset:
Patent DE-4042146-A1 (DE)
Title: Prepn. of finely divided silica e.g. for polymer chemistry, paints - by reacting alkali silicate solns. with acids or acid-type reagents
Inventor: COTTA FRITZ DR RER NAT
IPC: C01B33/193
Filed: 1990-12-28
Abstract: Prepn. of finely divided silica comprises reaction of alkali silicate solns. with acids or acid-type reagents, circumventing a coherent hydrogel structure. The alkali silicate soln. is neutralised at 80-100 deg.C, treated with a trialkylbenzylammonium type cpd., at the point where the viscosity of the sol phase is 10-14 mPals, to form monodisperse floc-agglomerates, conc. and worked up. USE/ADVANTAGE - Finely divided silica is used as a filler for polymer work-up, a thickener or thixotropic agent for various systems, a mobile solvent for bulk materials, or extender for dispersion paints or a carrier for biologically active materials. The process is economical and the pptn. is easier to control than in prior-art processes
Patent DE-4042265-A1 (DE)
Title: Translucent member for sloping roofs - pref. has outer and inner layers of polycarbonate double-skin sheet and intermediate layer of glass fibre mat pref. plus water-glass
Inventor: SCHULZ HERBERT
IPC: E04D3/08
Filed: 1990-12-31
Abstract: A translucent roofing member has a transparent outermost sheet, a transparent inner sheet parallel to and 10-30 mm from the outer sheet, and an intermediate translucent layer of spun glass and/or glass mat. Pref. materials are (a) a double-skin polycarbonate sheet for the outer and inner layers (b) a glass mat impregnated with water glass or with a GRP sheet for the intermediate layer. The example shown has (a) double-skin polycarbonate sheet outermost layer (2) 10 mm thick, a core (4) of 220 g/m2 20 mm thick slightly compressed glass yarn, a 25 g/m2 layer of glass mat (6) impregnated with soda water glass, and an inner sheet (8) of double-skin polycarbonate sheet. The figure shows the gutter area where the lower end of the member fits into a holder (12) on a metal sheet (16) on a wooden section (10). The underside of the member has one neoprene seal (14) and another (18) over the bar (20). The construction lends itself to a number of variations. They can be walked on. The fibres in the centre layer run at right angles to the webs of the skins. ADVANTAGE - Prod. meets the appropriate fire specifications. It has good thermal insulation.
Patent DE-4101818-A1 (DE)
Title: Pneumatic fertiliser distributor machine - has multiple hoppers for different types of fertiliser
Inventor: SCHEUFLER BERND DR ING
IPC: A01C15/04
Filed: 1991-01-23
Abstract: The pneumatic fertilser distributor has it at least two hoppers (1,2,3) for separate carrying of at least two different types of fertilizer. It has a dosing valve (4) for each hopper, and a blower (6) connected to a central duct (5). The dosing valves (4) pass the material directly into the central duct (5), which is connected to a distributor element (8) which distributes the material to the individual outlet openings of a pneumatic distributor rod (11). USE/ADVANTAGE - Greatly simplifies the design of a pnematic multi-chamber fertiliser distributor.
Patent DE-4106307-A1 (DE)
Inventor: REISNECKER LUDWIG
IPC: H01R43/08
Filed: 1991-02-28
Abstract: The roll commutator proposed has a number of adjacent lamellae manufactured from a continuous shaped-section metal bar. The roll commutator (39) is characterized in that, before the lamellae (31) are manufactured, the metal bar (1) has shoulders (9 and 11) on one side which act as retaining lugs (13, 15) after the series of sections produced from the metal bar (1) have been unrolled. Since it is unnecessary to machine the lugs when manufacturing the commutator, no additional tools or machining steps are necessary.
Patent DE-4109191-A1 (DE)
Title: Automatic prepn. and positioning arrangement for microscope specimens - conveyed on filter strip from beneath liq. containers to fluorescence microscope whereby micro=organisms are rendered visible
Inventor: SCHUBERT HENDRIK DR RER NAT
IPC: G01N1/31
Filed: 1991-03-16
Abstract: A funnel (2) with a sealing ring is placed periodically over the filter strip (1) unreeled from a cassette (9). 5 ml of aq. soln. of the sample (5) are mixed with 5 ml of water (7) and 20 microlitres of fluorescent dye (6) for 5 minutes. The water is sucked out (3) and the sample is rinsed twice and dried.The funnel is removed and the sample transferred to a polished plate (8) under the microscope. Fluorescence images are read by a matrix camera (10). USE/ADVANTAGE - For counting heterotrophic bacteria in water samples, larger quantities can be processed for rapid and repeatable results.
Patent DE-4111022-A1 (DE)
IPC: B30B5/06
Filed: 1991-04-05
Abstract: 2. In continuous surface pressing, a pressure chamber is allocated to each working strand of the endless press band, which pressure chamber is sealed off from the atmosphere in an encircling manner by means of a sealing strip. These sealing strips are exposed to high pressures and temperatures. 2.1 The object of the invention is to prolong the life of these sealing strips. 2.2 To achieve this object, compact shaped bodies (7) arranged at a distance from one another and made from a solid lubricant are embedded in the plastic sealing strips (4), which shaped bodies (7) are supported with an exposed working surface (8) on the allocated strand of the press band. 2.3 The device is used for producing wooden boards and laminates for the furniture industry, for the electrical industry and for other industrial branches. <IMAGE>
Patent DE-4111267-A1 (DE)
Title: Hay gathering machine with six wheel rakes - has extra detachable stops between support frames for easier control by driver
Inventor: MAIRHUBER JOSEF
IPC: A01D78/10
Filed: 1991-04-08
Abstract: The hay gathering machine such as tedder has several wheel rakes driven in opposite directions on upright axes of rotation. In addition to the detachable stop device (39) between the inner support frame (1) and the outer support frame (3) there is a further additional detachable stop device (41) between the outer support frame (3) and the middle support frame (2) whereby the swivel movement of the outer support frame (3) relative to the middle support frame (2) is restricted upwards to an angle (37) of about 15 deg.C. The two stop devices and the locking device (40) between the outer support frame and inner support frame can be operated and released by the same remote control operating means (42). USE/ADVANTAGE - Easier operation of hay gathering machine with infinite control from the drivers seat.
Patent DE-4112200-A1 (DE)
Title: Dental implant in human jaw - involves implantation body inserted in jaw-bone recess into which is inserted threaded screw with free end forming radial segments in body
Inventor: PILAREK MIROSLAUS
IPC: A61C8/00
Filed: 1991-04-13
Abstract: The cylindrical implantation body is fixed in a corresp. recess in the jawbone and into it is screwed a holder for the tooth replacement part. The holder (6,7) with a threaded pin (8) engages in an adjustment ball (4,5) which is supported in a pressure bearing (2) in the implantation body, against which it is pressed by means of an axially inserted ring screw (3) in the implantation body. The adjustment ball (4,5) is divided in the ratio of 2/3:1/3 into upper (4) and lower (5) sections, of which the larger upper section accommodates the threaded pin (8) of the holder (6,7) which projects into the lower smaller ball section with a threadless centering extension (9). USE - Dental implant permanently fixed in patient's jaw.
Patent DE-4115026-A1 (DE)
Title: Short inking mechanism for rotary offset printing press - includes blade positioned by adjuster, in electronic control loop, for thickness of film on feed roller
Inventor: MARK ERNST
IPC: B41F31/04
Filed: 1991-05-08
Abstract: The effective thickness of the film of ink formed on the feed roller (2) is measured by an electronic device (6) for comparison with the desired value (9) in an electronic regulator (8). The error signal is applied to an electric drive (11) which adjusts the position of a blade (4) controlling the width of the gap (5) between the end of the ink duct (3) and the surface of the feed roller (2). ADVANTAGE - Time-invariant and esp. uniform thin film is produced with possibility of faster correction by mechanism suitable also for high-grade printing.
Patent DE-4118506-A1 (DE)
Title: Assembly of electronic components in housing - comprises injection moulded housing with internal chamber contg. circuit board and electronic components insulated by epoxy] resin
Inventor: ENGEL WOLFGANG DIPL ING
IPC: H05K5/00
Filed: 1991-06-06
Abstract: An assembly of silicon chip components within a housing is described. A chamber (14) inside the housing (15) has an internal circumferential lip supporting a circuit board (10) together with electronic components (11, 13). A polymer, typically epoxy resin is cast onto the side containing the electronic components (11, 13) and acts as an insulator (18). The housing (15) comprises an injection moulded plastic component. USE/ADVANTAGE - The housing is used with twin covers as a hearing aid and allows easy mounting an insulation of electronic components, even those occupying very small areas.
Patent DE-4119546-A1 (DE)
Title: Formation of passageway in servo-cylinder wall - uses press tool with narrowed tip having curved section to produce uniform curved passageway entrance
Inventor: KOJIMA TAKAO
IPC: B62D5/12
Filed: 1991-06-13
Abstract: The cylinder (2) has a passageway for servo-fluid, with a sloping section (20) curved on its inner end along its circumference. The tool for machining the cylinder is used as a punch to form the opening in the cylinder wall. It comprises a body (30c) of diameter larger than its end (30a) such that a sloping section exists between them to form the curved opening when pressed into the cylinder. The axial portion of the tool's sloping section has a curved recess. The press process is effected with the axis of the tool aligned with or displaced relative to the cylinder axis. USE/ADVANTAGE - Used in servo-assisted steering systems, the method of forming the passageway provides an opening which is uniform along the circumference of its sloping section. This avoids damage to the sealing element that divides the servo-cylinder into its separate chambers.
Patent DE-4121753-A1 (DE)
Title: Purificn. of peptide derivs. by chromatography on hydrophobic carrier - uses acidic eluent so that lipophilic impurities are retained but target cpd. is not and providing high yield at high column loadings
Inventor: HAENSICKE ANDRE DR
IPC: C07K1/20
Filed: 1991-07-01
Abstract: Lipohilic synthesis by-prods. and coloured impurities are sepd. from peptide (derivs) (I) by liq. chromatography on hydrophobic carriers. (I) is contained as a temp. component of an acidic aq-organic elution medium (at up to satn. concn) and is eluted in the breakthrough without retention. Chromatography is by isocratic elution with a medium contg. up to 30% solvent and of pH below 3.5. Suitable carriers are reverse-phase silica gel or organic polymers, esp. CAE carriers based on acrylate ester-divinylbenzene copolymers. USE/ADVANTAGE - The method is used to purify (I) to pharmaceutical quality (better than 98% pure); the mostly poorly characterised lipophilic impurities are retained on the column after elution of (I). Impurities are removed simply without the expense of preparative HPLC; high column loadings can be achieved (e.g. 50-150 mg (I)/ml compared in usual systems) and since (I) is recovered before impurities there are almost no losses of materi
Patent DE-4121972-A1 (DE)
Title: Denture cleaning appts. using washing fluid - rotates dentures in basket immersed in cleaning fluid and ensures intense fluid flow
Inventor: SANDERS THEO
IPC: A61C17/02
Filed: 1991-07-03
Abstract: The denture cleaning appts. consists of a container in which the dentures are moved in a basket through a cleaning fluid. Both the container and the basket are pref. ribbed so as to cause intense flow of fluid to improve the washing effect. The rotation of the basket is controlled by electronic circuitry. A drive motor is made to run backwards and forwards to intensify the generation of eddy currents in the cleaning fluid and ensure that no unwashed spots remain on the dentures after washing. The control circuitry also allows timing of the cleaning process and variation in motor speed. ADVANTAGE - Enables intensive multi stage cleaning process.
Patent DE-4128662-A1 (DE)
Title: Juggling club with two rubber caps, bar, handle and main part - are all joined together by ridges, with rubber shock absorber ring
Inventor: LUEFT WERNER
IPC: A63B15/00
Filed: 1991-08-29
Abstract: The juggling club consists of two rubber caps (11, 14) a bar (25), a main club part (12) and a handle (13). The sections are ridged so that under slight pressure they can be interlocked. The rubber caps (11, 14) are fixed by slanting ridges (42). The bar (25) and handle (13) are interlocked by a ridge (41); the bar (25) and main part (12) are joined by a ridge (23), and the main part (12) fixed into a socket (22) by the ridge (23) on the main part (12) and the ridges (24) on the bar (25). The club main part (12) and handle (13) are joined by ridges (31, 32). A rubber ring (34) acts as shock absorber . The rubber cap (11) is fixed by a ridge (62) on the protuberance (61) on the main club part (12). USE/ADVANTAGE - The separate parts of the juggling club are held together securely by pressure and are elastic enough to withstand impact and breaking.
Patent DE-4129671-A1 (DE)
Title: Vehicle seat with height and angle adjusters - uses crank slide attached to joint mounted on seat back rest
Inventor: NURTSCH BERND
IPC: B60N2/16
Filed: 1991-09-06
Abstract: The vehicle seat with a seating surface (2) and a back rest (3), has adjusters for the height of the seat and the angle of the back rest, in which the back rest is swivel mounted separately from the seat on rails (7). The seat and the back rest are connected to each other by a lockable crank slide (19, 20) of the height adjuster with a linkage point (17) linearly introduced into a guide  parallel to the axis (11) of the back rest. ADVANTAGE - Vehicle seat of lightweight construction able to withstand the forces exerted by the seat belt and the adjustment movements of the back rest.
Patent DE-4130594-A1 (DE)
Title: Membrane flow control valve for cleaning without dismantling - has semi-spherical sealing element pressure membrane into curved seat containing flow ducts
IPC: F16K7/12
Filed: 1991-09-12
Abstract: The flow control valve has the flow ducts each side of a semi-spherical valve seating into which the membrane (12) is pressed by a semi-spherical thrust element (15). The sealing force is applied at right angles to the flow via a threaded spindle drive. The bottom of the semi-sphere is tangential to the bottom of the duct profile. For enhanced sealing action the membrane has an outer ridge (18) to form a sealing plane. The thruster is prevented from rotating by a guide pin (17) set into the outer housing (7). To clean the valve it is opened and a cleaning flow passed through the ducts. ADVANTAGE - Simple design, secure sealing action, simple cleaning process.
Patent DE-4131868-A1 (DE)
Title: Negative electrode for lead battery - comprises copper@ sheet or electronics board with active mass of tin@ and lead@ contg. alloy paste
IPC: H01M4/14
Filed: 1991-09-25
Abstract: Negative electrode for a Pb battery consists of an electronics board or an alloy-coated perforated Cu sheet, with an active mass of an alloy paste of Sn-Pb contg. 0-95% Sn. ADVANTAGE - For use in automobiles. Increased energy density and longer lifez
Patent DE-4136178-A1 (DE)
IPC: A61B17/56
Filed: 1991-11-02
Abstract: In a television receiver, especially with differing image formats, it is desirable to make the image width continuously adjustable after the manner of a zoom effect. It is the purpose of the invention to provide a simple circuit for continuously adjusting the image width without any perceptible effect on the horizontal scan output. To the tangent capacitor (Cs1) is allocated another capacitor (Cs2) with a switch connected in parallel to it. The switch is closed for an adjustable period beginning at the line centre. Especially for television receivers with differing image formats and zoom adjustment facilities for the image width.
Patent DE-4208009-A1 (DE)
Title: Rapid coupling for pressure line with venting facility - has central venting hole in valve element with edge slot to vent pressure line when coupling is opened
Inventor: WICKART ALBERT
IPC: F16L37/12
Filed: 1992-03-13
Abstract: The rapid coupling has a connector body (4) with a spring loaded self sealing valve (18) which is opened when the coupling nipple (6) of the connecting pipe is inserted. A sleeve (30) around the coupling releases a ratchet catch (32) to enable the valve to be disconnected. Two ratchets are provided, to hold the valve in a partially opened setting, for venting, and a fully released setting. The dome shaped valve element has a central venting duct (22) and a side slot (24) for a limited venting flow. When the supply line is switched off the two stage removal of the coupling vents the system. ADVANTAGE - Fully venting coupling, no damage through thermal expansion of trapped gasses, no uncontrolled pipe movements when opened.
Patent DE-4209284-A1 (DE)
Title: Electronic circuit interrupter with attached terminal connector block
Inventor: LESSLIE DAVID JAMES
IPC: H01R9/22
Filed: 1992-03-21
Abstract: Low voltage electric switchgear equipment includes a central processor unit electrically interconnected with electronic main and branch circuit interrupters within the same enclosure and used within a multi-phase power distribution circuit. A terminal connector block is connected by cable with each of the electronic trip units within the branch circuit interrupters to provide communications between the branch circuit interrupters and the main circuit interrupter for continuously updating the status of the branch circuit interrupters and their associated electrical equipment.     Strain relief is provided to the cable connecting between the terminal connector block and the branch circuit interrupter to prevent damage to the electrical components within the electronic trip unit that are internally connected with the cable.
Patent DE-4210898-A1 (DE)
Inventor: REHM KARL
IPC: B23Q27/00
Filed: 1992-04-02
Abstract: The tool spindle serves to machine or produce elliptical surfaces, in particular elliptical bores. A sleeve is rotatably mounted in a housing, and a shaft which carries the tool is rotatably mounted in the interior of the sleeve but eccentrically to the sleeve axis. The shaft and the sleeve are driven in opposite directions but at the same speed. <IMAGE>
Patent DE-4212363-A1 (DE)
Title: Electromagnetic metal detector giving audible and visual indications - reinforces acoustic indication of conductive object with null-indicator displays related to nature of buried metal
Inventor: ING KLAUS EBINGER KOELN
IPC: G01D7/12
Filed: 1992-04-13
Abstract: The output of an oscillatory circuit including a search coil (1) parallel capacitor (1a) is rectified (3) for application to a DC amplifier (4) and voltage-to-frequency convertor (5) driving a loudspeaker (6). A portion of the amplified DC is tapped off to an amplitude/frequency comparator (7) which compares the voltage level with the output of an oscillation frequency comparator (8) addressed by a frequency modulator (9). The two visual displays (10,11) represent the attenuation of the oscillatory signal and the direction of its frequency shift as a criterion for distinction between ferrous and nonferrous metals. ADVANTAGE - The appts. guarantees a reliable indication of the material of the object as well as its position and size.
Patent DE-4226531-A1 (DE)
Inventor: ROTH WOLFGANG DIPL ING
IPC: B60H1/08
Filed: 1992-08-11
Abstract: In a constant timing valve for the discontinuous metering of a volume flow, especially the flow of cooling water flowing through the heat exchanger of a motor vehicle heating system, in order to keep the volume flow at the valve outlet (17) constant regardless of the volume flow at the inlet (16), there is a by-pass pipe (28) in the valve housing (18) from the inlet (16) to a return line (18) which is closed by a spring-loaded, pressure-controlled by-pass valve (29). The by-pass valve (29) is designed so that, when the connection between the inlet and outlet (16, 17) is not blocked, the excess volume flow passes via the return line (18), at least until a predetermined minimum pressure is attained in the by-pass pipe (28). The integrated by-pass valve (29) is coupled to the timing valve (14) in such a way that it is affected by the timing valve (14) when the latter is closed.
Patent DE-4226693-A1 (DE)
Title: Computer control of airjet loom - has data store of unwinding behaviour of weft yarn supply to set up optimum processing conditions
Inventor: TSUNASHIMA YOSHIHIRO
IPC: D03D47/30
Filed: 1992-08-12
Abstract: Weft insertion in a jet loom is controlled by first checking a data store for the relationship between yarn unwinding speed and jet pressure and then calculating the required settings for the current processing conditions. The process can be used with a single jet or with an arrangement of secondary jets. Control is effected by adjusting jet pressure and timing. Pref. air jet loom has a main jet (1) supplying weft yarn (Y) whose flight is maintained by secondary jets (16) placed in six groups (G1-G6). A microcomputer (20) has a data store (20c) for the relationship calculated by the processor (20b) based on the input from sensors (21,22,23). When new conditions have to be set up, the variables are keyed into an input device, e.g. a keyboard (24), and the required processing coditions are calculated by a controller (20d) connected to acutators and timers (25). USE/ADVANTAGE - Reduces the operator skill required to set up conditions on automatic air jet looms by using a computer which can store data on the unwiding behaviour of the weft yarn.
Patent DE-4233793-A1 (DE)
Title: Ink jet print head mfr. - applying positive and negative voltages to electrode pairs formed on either side of separating wall
Inventor: FUJIMOTO HISAYOSHI
IPC: B41J2/16
Filed: 1992-10-07
Abstract: The method involves forming a pair of electrodes (26) on either side of a separating wall (22). Positive and negative voltages are applied to electrode pairs in order to cause a polarisation of the separating wall. Several ink channels (20) are formed with a set alignment in a block of piezoelectric material. An electrode is formed on the inner wall of each channel, and positive and negative voltages are applied to the electrodes of two neighbouring channels to polarise the separating wall (22) between them. A front plate is attached having several openings for ejection of ink at the front of the piezoelectric block. A back panel with ink feed lines is applied to the back of the piezoelectric block. ADVANTAGE - Allows polarising treatment of piezoelectric material to be carried out at low voltage.
Patent DE-4234311-A1 (DE)
Title: Prodn. of high temp. superconductor based on bismuth alkali-earth cuprate(s) - by partially melting powdered starting material, calcining, and cooling in inert gas atmosphere
Inventor: BAUMANN THOMAS DR
IPC: H01L39/24
Filed: 1992-10-12
Abstract: Prodn. of a high temp. superconductor based on bismuth alkali-earth cuprates comprises: (a) partially melting a powdered starting material at a 1st process temp. (T1) above the melting point at an O2 partial pressure p(O2); (b) calcining at a 2nd process temp. (T2) at 830-870 deg.C at an O2 partial pressure p(O2); and (c) cooling to room temp. below 700 deg.C in inert gas atmosphere. The novelty is that partial melting at 1st process temp. (T1) is carried out in range of Tm (melting point of powdered starting material) K greater than T1 greater than Tm + 10K over a 1st process period (D1) of 1 hr. greater than D1 greater than 3 hrs. ADVANTAGE - High current density achieved.