baber/WOPTO huggingface dataset:
Patent DE-4332760-A1 (DE)
Title: Method for the operation of a low-pressure metal-casting apparatus and a low-pressure metal-casting apparatus for this purpose
Inventor: DOEHRER KLAUS
IPC: B22D18/04
Filed: 1993-09-25
Abstract: The invention relates to a method for operating a low-pressure metal-casting apparatus, particularly one for brass or copper. In this arrangement, a metal melt (2) is held in reserve in a closed melting furnace (10) and a die (5) placed on the upper end (31) of at least one rising pipe (3) which dips into the melt (2) and is passed out of the furnace (10) at the top can be filled with metal melt (2) through the said rising pipe by raising the pressure in the interior (12) of the furnace, and, after the metal melt (2) delivered to the die (5) has solidified, the molten metal level (20) in the rising pipe (3) is lowered again by reducing the pressure in the furnace (10), the filled die (5) is moved away from the rising pipe (3) and a new, empty die (5) is placed on the rising pipe (3). The new method is characterised in that as the molten metal level (20) in the rising pipe (3) falls or after it has fallen, a fluid medium (43', 44') which binds and/or displaces the atmospheric oxygen situated above the molten metal level (20) in the rising pipe (3) is pumped into the interior (30) of the upper part (31) of the rising pipe (3). The invention furthermore relates to a low-pressure metal-casting apparatus. <IMAGE>
Patent DE-4333093-A1 (DE)
Title: Coupling, which is integrated in the rotor shaft, for the excitation power supply lead of an electrical machine
Inventor: PAUL RUDOLF
IPC: H02K13/02
Filed: 1993-09-29
Abstract: In the rotor of an electrical machine, in particular a turbo generator, the rotor winding is connected to the sliprings and to the rotating exciter device via excitation power supply conductors (4, 5) which are arranged in pairs in a central shaft hole (3) in the rotor (1). In this case, the slipring arrangement or the excitor device is normally arranged on a shaft stub which is connected to the rotor shaft (1) by means of a detachable coupling (17). A contact arrangment is integrated in the coupling in order to connect the exciter power supply conductor of the main machine electrically to that of the exciter arrangement. Said contact arrangement comprises spring-loaded pressure contacts (46-49) which are electrically connected via stacks of leaf springs (39-42) to the exciter power supply conductors either directly or with intermediate elements (76, 77; 113, 114) being interposed. An electrical coupling of such a design can be produced easily and economically and results in an electrical connection which is satisfactory in all operating conditions and is achieved automatically during coupling. <IMAGE>
Patent DE-4339438-A1 (DE)
Title: Computer software vending machine coupled via LAN to central database
IPC: G07F17/16
Filed: 1993-11-19
Abstract: The purchase of software is made possible by terminals that the buyer can access having purchased a coded disc on which to copy the appropriate package. The terminals are linked over ISDN buses to a central memory that stores a large number of programs.  The terminal executes an identification routine to check the validity of the selection. Data is then transferred onto the inserted floppy disc.
Patent DE-4339757-A1 (DE)
Title: Ring spinner
Inventor: STOELZNER GERD
IPC: D01H1/42
Filed: 1993-11-22
Abstract: The spinning machine, and esp. a ring spinner, has an intermediate zone (6) between the rail (4) and the ring rail (1) as an air passage leading downwards.
Patent DE-4401597-A1 (DE)
Title: Laser machining apparatus with beam-mode control
Inventor: NISHIDA SATOSHI
IPC: B23K26/06
Filed: 1994-01-20
Abstract: A laser machining apparatus is described which enables a laser beam mode (TEM00, TEM01<*>), which is always optimally adapted to the machining of a workpiece (11), to be set on the basis of a change in the focussing property of each mode (TEM00, TEM01<*>) and of the amount of movement of the focal point of the beam with regard to a change in a laser output value. The laser machining apparatus comprises a laser oscillator (1, 10), which can change the beam mode (TEM00, TEM01<*>) of its laser beam (2), and a machining table (5), and all are controlled by a control device (6) which works to change the beam mode (TEM00, TEM01<*>) of the oscillator (1) in response (13, 14, 12d, 22) to a laser output during machining. <IMAGE>
Patent DE-4407176-A1 (DE)
Inventor: PETERSEN HANS
IPC: G01L11/02
Filed: 1994-03-04
Abstract: In a pressure measuring device, in particular for medical pressure measurements, a mechanical pressure sensor is connected to an evaluating electronic system (10) by means of a beam wave guide (3). In order to compensate adulteration of the measurement result by movements and flexions of the beam wave guide (3), a comparison beam wave guide (4) can be moved flexibly together with the beam wave guide (3) and parallel thereto. The light signal of the comparison beam wave guide (4) is uninfluenced by the pressure in the pressure sensor (2) and is delivered as a reference signal to the evaluating electronics system which, by means of the reference signal, compensates changes in the measured value which are caused by movement.
Patent DE-4407506-A1 (DE)
Title: I.C. piston engine with two centre-symmetrical pistons
Inventor: WOYDERSKI GEORG DIPL ING
IPC: F02B75/28
Filed: 1994-03-07
Abstract: The cylinder space (1) contains two opposite pistons (2), forming a space between them. There is a connection, via which the gases are transferable in dependence on the piston position. There is an effective intermediate drive (3-6) for the piston movement in the cylinder at identical stroke frequency. There is a main dive shaft (7).The cylinder space, integrated in a casing, contains the two pistons with symmetrical spacing from the central point of the central reverse point. The spacing is the piston intermediate space of the combustion chamber. Pref. the intermediate drive acts between the pistons and the main drive shaft.
Patent DE-4408414-A1 (DE)
Title: New chiral 2-substd. 5-pyranyl-oxy and di:hydro-5-pyranyl-oxy cpds.
Inventor: SIEMENSMEYER KARL DR
IPC: C07D405/12
Filed: 1994-03-12
Abstract: New cpds. (I) contain chiral gps. of formula (II): B = a single or double bond; R1 = 1-30C alkyl, opt. substd. by F, Cl, Br, CN or OH and opt. with O, S, NH, NMe, COO or OCO in the chain; phenyl, opt. substd. by F, Cl, Br, CN, 1-20C alkyl, 1-20C alkoxy or 1-20C alkoxycarbonyl; F; Cl; or CN.
Patent DE-4410385-A1 (DE)
Title: Device for fixing printing plates to plate cylinder
Inventor: KOEBLER INGO
IPC: B41F27/12
Filed: 1994-03-25
Abstract: The device has two clamping strips (3,4) which are connected by at least one pre-tensioned plate spring (5). One clamping strip (4) is in the form of the movable end of a plate spring fixed to the other clamping strip. The one clamping strip is a coupling over at least two plate springs forming a parallelogram with the other clamping strip to form a frame. At least one of the clamping strips is divided over the format width in the plate cylinder's axial direction. The lower clamping strip in the pit (2) of the plate cylinder is movably positioned. The pit contains a tensioning piece (9) for moving the lower clamping strip in the plate cylinder's peripheral direction.
Patent DE-4413304-A1 (DE)
Title: Treatment of polluted water esp. in the paper-making industry
Inventor: MAIER JOSEPH DIPL ING
IPC: C02F11/13
Filed: 1994-04-18
Abstract: Treatment of polluted water comprises: (a) reducing the solids content below 20 mg/l; (b) adjusting the pH to 2-11; (c) reducing the BaSO4 concn. to 10<-9> g/l or less and the K2SO4 concn. to 5x10<-4> g/l or less; and (d) passing the water through a membrane filtration or nano-filtration unit.
Patent DE-4417504-A1 (DE)
Title: Tanker vehicle for transport of milk
Inventor: STROMBERG HERBERT
IPC: B60P3/22
Filed: 1994-05-19
Abstract: The tanker vehicle is for the transport of liquids, esp. milk. It has a recirculation channel (38) containing a recirculation pump (40) and a cooling assembly (42). It can be connected to the channel system (26,28,30) to empty the tank (12), and can also be linked to the channels (44,46,48) passing back into the tank. The channels (26,28,30) to empty the separate chambers (16,18,20) are each fitted with closure taps (32), and a closure tap (52) is at each of the channels (44,46,48) leading back into the chambers (16,18,20). The recirculation channel (38) is connected to a battery of taps (24) at the upstream end, for selective connection to empty and fill the separate chambers (16,18,20) through the channels (16,28,30) for them and also to the main channel (22).
Patent DE-4420517-A1 (DE)
Inventor: ROSSELLO BLASI ANTONI
IPC: D21H19/46
Filed: 1994-06-13
Abstract: The invention concerns aqueous metallic soap dispersions having improved application properties. These dispersions are obtained by using an aqueous solution of a metal oxide or hydroxide and stirring in a mixture of: a) a linear fatty acid; and b) a branched fatty acid. The dispersions are suitable, for example, as coating agents for preparing paper.
Patent DE-4423467-A1 (DE)
Title: Reducing line flicker in still picture, e.g. test card on TV receiver screen
Inventor: BOHL ROLAND DIPL ING
IPC: H04N5/44
Filed: 1994-07-05
Abstract: The method is intended for still pictures represented by frames having a vertical frequency of 100 Hz, their status being transmitted as digital information in its lines. As the pictures are received, this information is evaluated and it is established whether the current picture is a test picture, a marked still picture or a normal television picture. A first control signal is generated in the latter case. If it is a test or still picture, a second control signal is generated. The signals control the read out from two memories (8,9); in the sequence AABB by the first control signal and in the sequence ABAB by the second control signal, where A and B are the respective half frames.
Patent DE-4424549-A1 (DE)
Inventor: KIM DONG-GOO
IPC: H01L23/02
Filed: 1994-07-12
Abstract: A method of packaging a power semiconductor device is disclosed, comprising the steps of preparing a lead frame including a paddle for providing a semiconductor chip on a top surface thereof, tie bars for supporting said paddle, wherein said paddle being provided lower in horizontal surface than the leads; attaching a heat radiating plate on a bottom surface of the paddle by cladding; attaching a Kovar plate on the top surface of the paddle by soldering, said Kovar plate having similar heat expansion coefficient to that of the chip; providing the chip on the Kovar plate by soldering; wire-bonding terminals of said semiconductor chip to the corresponding leads of the lead frame, respectively; coating polyimide over the semiconductor chip by spin-coating; curing the polyimide coated thus; forming a metal cap above the said paddle by soldering, and injecting a molding material into a molder for enclosing the paddle and curing the molding material injected thus the method can be applied to produce a plastic package of a power semiconductor device at low cost. The metal cap is grounded through the tie bars as a source electrode to shield a noise.
Patent DE-4425439-A1 (DE)
Inventor: AUGSTEIN MANFRED DIPL ING
IPC: G01N21/47
Filed: 1994-07-19
Abstract: The test strip evaluation device (1) has a transport unit (2) for feeding the test strips (3) perpendicular to their longitudinal direction, across a support surface (5) at the measuring position, in which a measuring gauge (4) is positioned over the test strip. The measuring gauge is supported by a guide arm, via a lever mechanism allowing movement of the measuring gauge in at least 2 directions, when the guide arm is displaced via an electric motor coupled to its bottom end. Pref., a spring blade extends between the opposite ends of the guide arm. <IMAGE>
Patent DE-4425823-A1 (DE)
Title: Electronic ballast for low-pressure  discharge lamp
Inventor: WESTERVELD JOHANNES H
IPC: H05B41/28
Filed: 1994-07-08
Abstract: An electronic ballast for a DC- or AC-mains powered, low-pressure discharge lamp uses a half bridge rectifier feeding at least one lamp through a parallel capacitance and a series inductance. There is an electronic harmonic filter, also with capacitance and inductance, with a control unit. The electronic switches, ie, transistors, t1, t2 of the inverter 1 are controlled through feedback coupling with a current-saturable transformer l3 which has a high magnetic permeability and a very narrow B-H curve with a very steep rise. The transformer has a low Q-factor. The primary winding n1 is joined to a point between the transistors. The inductance l1 and the secondary windings n2 are joined to the transistor bases.
Patent DE-4429602-A1 (DE)
IPC: F02G1/044
Filed: 1994-08-20
Abstract: The invention concerns a Stirling engine comprising a compression piston with an associated compression cylinder chamber (3), an expansion piston with an associated expansion cylinder chamber (2) and at least one connection line between the compression cylinder chamber (3) and the expansion cylinder chamber (2). Provided in the connection line (4) is a heater-regenerator-cooler arrangement (5). A device for co-ordinating the relative movement of the compression and expansion pistons is also provided. In order to bring about a phase shift of substantially 90 DEG  between compression and displacement at relatively high and maximum engine speeds, the expansion cylinder chamber (2) and compression cylinder chamber (3) have dead volumes (1) which, together with the total displacement volumes, act as pneumatic springs. The sizes of the two dead volumes (1) determine the phase relation between compression and displacement.
Patent DE-4430516-A1 (DE)
Title: Filtration of rainwater using simple construction with a virtually self-cleaning filter
Inventor: SPEIDEL GEORG
IPC: B01D29/01
Filed: 1994-08-27
Abstract: A filtration section for inclusion partic. in a rainwater collection system, having an entry for water, or other liquids, at least one filter element (13) and drain (15) for the filtrate. The filter element is inclined at an obtuse angle to the flow direction of the water. Excess water bypassing the filter is led through a chute (12) of increasing sectional area (12.1) to a waste drain (11).
Patent DE-4431691-A1 (DE)
Title: Installation conduit arrangement for electrical cables and piping
Inventor: VAHLBRAUK KARL HEINZ
IPC: E04F17/08
Filed: 1994-09-06
Abstract: The conduit arrangement contains at least one conduit element (4) of U-shaped cross-section closed off by a closure plate (6). The conduit element and closure plate are both made of inorganic foam material. Several conduit elements, each forming an individual installation conduit, can be arranged adjacent to each other. Each conduit element is interrupted at storey separation intervals by blocking plates. At least one part of the conduit element has inner rails or similar profile elements (11) to which attachment elements for installation device are fixed.
Patent DE-4437350-A1 (DE)
Title: Packaging material for electric light bulb
Inventor: RECKWEG CARSTEN
IPC: B65D85/42
Filed: 1994-10-19
Abstract: A type of packaging for a light bulb comprises a sleeve (10) which can collapse in the axial direction and which partly surrounds the bulb. A loop is slid around the sleeve to hold it around the bulb. The inside of the sleeve has a recess(22) for the glass envelope of the bulb, if larger than the base, or for the base, if larger in diameter than the glass envelope. The recess extends only partly across the sleeve width. There are also tongues to hold the bulb in place. The outside of the sleeve also has tongues which prevent the loop from slipping by pressing against it.
Patent DE-4438127-A1 (DE)
Title: Tongue arrangement for rails set in road surface
IPC: E01B5/18
Filed: 1994-10-27
Abstract: The rail bar (30) of the stock rail (10) in the region of the tongue rail (12) runs in part in an offset manner such that the stock rail remains unaltered on the travel edge side. The rail foot (32) and the rail head (38) of the stock rail are so formed that a straight line is produced through the machined out section and between the adjacent head and foot sections.
Patent DE-4438150-A1 (DE)
Title: Tape dispenser
Inventor: YOKOUCHI NOBUO
IPC: B65H35/00
Filed: 1994-10-25
Abstract: The tape dispenser is provided with a dispenser body having a tape retainer and a tape cutting blade and formed to such sizes that can be held by hand. The dispenser body is provided at its front portion with a member capable of pressing tape against an object on which the tape is to be pasted. The blade is positioned ahead of the tape pressing member when the blade is in a free state.  At least one of the tape pressing member and blade has escape displacement characteristics relative to the other which are displayed when a force is applied to the pressing member (namely, such displacement characteristics that permits the blade and tape pressing member to be displaced relatively to each other so that an angle between the dispenser body holding direction and the direction connecting a tape pressing point of the tape pressing member and the blade together decreases during a tape pressing and pasting operation). This enables the self-adhesion of a cut tape prior to the pasting of the tape on paper to be prevented reliably, and also the picking of the tape so as to draw out the same to be rendered unnecessary.
Patent DE-4439668-A1 (DE)
Title: Medicinal ointment compsns.
Inventor: KOLLAUTZ MANFRED
IPC: A61K35/38
Filed: 1994-11-07
Abstract: Medicinal ointments (I) comprise (parts): natural rosin (10-30), animal fat (30-50), beeswax (30-50), and opt. neat's-foot oil or gel.
Patent DE-4444367-A1 (DE)
Title: Fixed bed reactor for continuous exothermic reactions esp. for gas cleaning
Inventor: ROSCHKA ERHARD DR
IPC: B01J8/06
Filed: 1994-12-14
Abstract: Fixed bed reactor suits continuous exothermic reactions, especially gas cleaning processes. Its novel layout includes a cylindrical casing with conical cover including the gas inlet (1), and a conical base with outlet (10). Gas enters the distribution zone (2), to be directed outwards by an internal cone, to its edge. Here, three concentric circles of openings in triangular distribution, give into catalyst filled tubes (3) surrounded by catalyst layers (8) in a cross flow heat exchanger arrangement. The tubes enter the annulus (4) with cylindrical outer wall, and conical inner, tapering outwards in descending.
Patent DE-4444576-A1 (DE)
Title: Original document feed arrangement e.g. for photocopier
Inventor: TSUKAMOTO YOUICHI
IPC: G03B27/62
Filed: 1994-12-14
Abstract: A copier arrangement has a document table (3) for holding an original document (D), and a document feed arrangement (2) operating in circulatory or reciprocal mode. A sensor device (12) detects the length of the original using information from a measurement sensor (11) arranged on the original's path of motion and a selection arrangement (6,8). The selection arrangement selects a recirculation operating mode when the original is smaller than a defined length. It selects a reciprocal motion operating mode when the detected length of the original is greater than the defined length.
Patent DE-4447003-A1 (DE)
Title: Computer construction using sliding card carrier drawer
Inventor: STAHL HERMANN
IPC: G06F1/18
Filed: 1994-12-29
Abstract: An electronic circuit board housing consists of a closed box with flat sides (3,4) with an outer case (2) in which a sliding circuit board drawer (60) fits. The circuit board drawer is a close fit in the outer case. The drawer front panel (62) is hinged to tilt and is removable. The axis of rotation of the front panel is the adjacent corner of the drawer (60). The front panel (62) is made of plastic and attached by a film or belt hinge.
Patent WO-8500525-A1 (WO)
Title: Device for the treatment of respiratory tract by means of warm air
Inventor: HIRTZ HANNS-JOACHIM
IPC: A61M16/10
Filed: 1984-08-01
Abstract: The device is substantially comprised of a mask (20) that is placd on the face of the patient and of an insulating container (26) wherein may be introduced a heat accumulation medium such as hot water which may be enriched by drugs and/or an infusion of herbs. Due to the insulation effect of the container (26), a treatment by means of inhalation may be pursued during long periods of time, without requiring energy from the outside. This makes the device independent from any electric current source. Furthermore, it is easy to handle since the insulation effect prevents any outer heating of the insulating container (26).
Patent WO-8901540-A1 (WO)
Title: Power loom with a mechanical dobby loom
Inventor: BORISCH FRED
IPC: D03C1/14
Filed: 1988-07-15
Abstract: The invention concerns a power loom (10) with a mechanical dobby loom (20), in which, for example, a planet gear (102) driven by a servo driving mechanism (30) is incorporated in the camshaft (96) between the dobby loom and the power loom.
Patent WO-9201916-A1 (WO)
Title: Pressure sensor for determination of the pressure in a combustion chamber of an internal-combustion engine
Inventor: BENEDIKT WALTER
IPC: G01L9/04
Filed: 1991-06-27
Abstract: In the pressure sensor (11) disclosed, a sensor element (19) made of piezo-resistive material is located in a housing (10). The resistive films (23, 25) of this piezo-resistive sensor element (19) are compressed in the direction of the current flowing through the films. When very-high-resistance paste is used for the resistive films, it is possible to produce a relatively high measuring signal.
Patent WO-9313439-A1 (WO)
Inventor: HEIDRICH HELMUT
IPC: G02B6/30
Filed: 1992-12-18
Abstract: Die Konfektionierung eines monolithischen Mikrosystems, z.B. eines opto-elektronisch integrierten Chips -OEIC-, mit mindestens einer optischen Ein- und/oder Auskoppeleinrichtung ist bereits weitestgehend im Maskensatz für die auf dem gemeinsamen Substrat (1) aus einem III-V-Halbleitermaterial auszubildenden Strukturen vorbereitet. Dabei handelt es sich um eine Ätzgrube (11) für die dort eingebettete optische Faser (3) und einen Oberflächen-Streifenwellenleiter (2), der mit einer durch Mikroabspaltung erzeugten Endfläche (13) versehen ist. Der Wellenleiter (2) kann als asymmetrischer Wellenleiter-Taper (7) ausgebildet, alternativ die Faser (3) mit einem Taper versehen oder zwischen beiden Lichtleitern (2, 3) auch ein mikrooptisches Element angeordnet sein. Derartige monolithisch integrierte Lichtleiterverbindungen werden beim Einsatz von Bauelementen, Chips und Komponenten der Integrierten Optik an der Schnittstelle zur Faseroptik benötigt.
Patent WO-9323876-A1 (WO)
Inventor: BROSS GUENTER
IPC: H02H9/04
Filed: 1993-05-07
Abstract: A current mirror with at least one pnp-transistor (10, 11) has an emitter (14, 15) to which is applied a positive voltage. Both collectors are designed as partial collectors (16, 17 or 18, 19) of a collector that surrounds the emitter (14, 15) substantially as a ring. The first partial collector (16, 18) and the base (20) are connected to a source of reference current (21) and the second partial collector (17, 19) is linked to a connection (22) of the current source that needs to be protected against overvoltage. In the case of an overvoltage at the connection (22), the emitter is formed by the second partial collector (17, 19) linked to said connection (22). In case of overvoltage, therefore, the absorbed current can rise only up to a limit value (I) which is in a topology-conditioned relation to the reference current (Iref) of the mirror. An effective protection against overvoltages is thus ensured.