baber/WOPTO huggingface dataset:
Patent DE-3716949-A1 (DE)
Title: Casting mould for the production of muffles
Inventor: KOHLER WOLFGANG
IPC: A61C13/20
Filed: 1987-05-20
Abstract: The invention relates to a casting mould for the production of muffles used for the conversion of wax patterns into metal. This casting mould comprises a funnel former (1), which consists of a disc-shaped baseplate (4) around the circumference of which there runs a sidewall (5) perpendicular to the baseplate, and of a cone (6) arranged in the centre of the baseplate, and further comprises a tubular muffle ring (2) partially inserted into the funnel former (1), the outer wall of the muffle ring (2) resting against the inner circumference of the sidewall (5) of the funnel former (1). According to the invention, a cylindrical ring (7), the central opening of which surrounds the cone, is inserted at that end of the muffle ring (2) which is adjacent to the funnel former (1). A blind funnel (3), the tip of which points towards the cone (6) of the funnel former (1), is furthermore provided at that end of the muffle ring (2) which lies opposite the funnel former (1). In this way, it is possible to achieve even three-dimensional expansion of the embedding material in the region of the casting cavities. <IMAGE>
Patent DE-3717457-A1 (DE)
Title: Method for fully automatic measurement and sampling on secondary metallurgical steel vessels
Inventor: CLEMENS KARL-HEINZ
IPC: C21C5/46
Filed: 1987-05-23
Abstract: For the fully automatic and remote-controlled measurement of temperature, oxygen activity, for recognition of the bath surface, and for sampling from secondary metallurgical vessels within an evacuated space, use is made of the measuring facility comprising the following parts:     - measuring and sampling lance - supply and disposal system for supplying the lance with sampling probes and for disposal of the used probes.   - Control via fully programmable electronic control. - Facility for recording measured values and evaluation of measured values. This facility offers the advantage of accurate process control combined with high repetition accuracy (reproducibility) and repetition rate of the measurements or sampling to be carried out.
Patent DE-3721068-A1 (DE)
Title: Diaphragm system with rotationally symmetric flexurally stiff diaphragm
Inventor: KRUEGER HELMUT
IPC: H04R7/12
Filed: 1987-06-26
Abstract: In a loudspeaker diaphragm (M), the wall thickness (H) initially continuously increases from the inside towards the outside edge but then continuously decreases again after reaching a maximum (Hm), the maximum being closer to the inside edge (r = ri) of the diaphragm (M) than to its outside edge (r = R).
Patent DE-3723883-A1 (DE)
Title: Prestressed-concrete girder
IPC: E01D2/04
Filed: 1987-07-18
Abstract: The prestressed-concrete girder 1 exhibits stressing members 3 which extend in the longitudinal direction, run in sheaths 5 and are subsequently interconnected with the concrete by pressing in grouting mortar 6. In the region of the stressing members 3, the prestressed-concrete girder 1 exhibits cavities 8 in which the stressing members 3 are located, without being interconnected with the concrete, and are freely accessible. Seen in the longitudinal direction of the prestressed-concrete girder 1, each stressing member 3 runs in an alternating manner through an interconnected region 7 and a cavity 8, with the result that subsequent exchange of a stressing member 3 is possible in that parts of the stressing member 3 within the cavities 8 are removed and those within the interconnected regions 7 are drawn out, whereupon a new stressing member 3 can be drawn in. <IMAGE>
Patent DE-3728448-A1 (DE)
Title: Valving surface for hydrostatic reciprocating pumps
Inventor: MUELLER MANFRED
IPC: F04B1/20
Filed: 1987-08-26
Abstract: The invention concerns a valving surface for hydrostatic reciprocating pumps, with damping notches located at a control opening. These valving surfaces are used in axial and radial reciprocating pumps with constant or variable working volume. The invention is implemented by arranging at least one damping notch in each face of the valving surface, so that each face acts as a seating surface or a control surface, depending on the direction of rotation of the axial reciprocating pump. The damping notches are arranged as mirror images on the control surfaces. <IMAGE>
Patent DE-3734129-A1 (DE)
Title: Waveguide angle
Inventor: HIRSCH GERHARD DIPL ING
IPC: H01P1/02
Filed: 1987-10-09
Abstract: A waveguide angle which can be implemented at low cost consists of two waveguide sections (2, 3) which open into one another and are angled with respect to one another, a bushing which forms the other waveguide section (3) being milled in one side wall of a waveguide (1) which represents one of the two waveguide sections (2), and means (5) being inserted into the waveguide (1) which bound that waveguide section (2) which is implemented by it in the region of the transition to the other waveguide section (3), in such a manner that electromagnetic waves are transferred from one waveguide section into the other (Figure 1). <IMAGE>
Patent DE-3736049-A1 (DE)
Title: Window wiper system for motor vehicles
Inventor: EGNER-WALTER BRUNO
IPC: B60S1/08
Filed: 1987-10-24
Abstract: A window wiper system for motor vehicles is described in which the contact force of the wiper blade against the window to be cleaned can be varied by means of an actuator. The position of the operating switch for determining the wiper speed of the wiper system and/or the amount of water on the window detected by means of a detector is evaluated as influencing variable for changing the contact force. In this way, an optimum adjustment of the contact force and thus an increase in the traffic safety is achieved in a simple way, even outside the high speed range, by virtue of an improved wiping effect.
Patent DE-3742368-A1 (DE)
Title: Aqueous release agent for the production of polyurethane foam mouldings
Inventor: MAKUS ZDZISLAW DR
IPC: B29C33/62
Filed: 1987-12-14
Abstract: The invention relates to an aqueous release agent for the production of polyurethane foam mouldings, in particular flexible polyurethane foam mouldings, which contains, as at least some of the release substance, one or more unsaturated, oligomeric or polymeric hydrocarbons having molecular weights of at least 500 and iodine numbers of at least 60 in combination with foam stabilisers which are suitable for polyurethane systems.
Patent DE-3742432-A1 (DE)
Inventor: KLOTZBACH MANFRED
IPC: A61H33/02
Filed: 1987-12-15
Abstract: In whirlpool baths, the entire piping system as such has to be cleaned for hygienic reasons, if appropriate by means of a cleanser and/or disinfectant solution. 
<??>In order to make this possible, the whirlpool nozzles (6) are designed to be closable and are connected to an overflow line (13) with a separate cut-off, which in turn is connected to the suction side of the pump (8), and into which a cleaning agent can be fed. 
<IMAGE>
Patent DE-3805840-A1 (DE)
Inventor: SCHIMMELPFENNIG HANS DIPL ING
IPC: B41J2/01
Filed: 1988-02-22
Abstract: In conventional processes, the printing mechanism of an ink jet printer is filled, after manufacture, with the appropriate ink and then adjusted. During subsequent storage of the ink jet printer, the ink in the printing mechanism could dry out or the dyestuff in the ink could be precipitated before delivery to the consumer. In the process disclosed, the interior (2, 3, 4, 6) of the printing mechanism (1) is filled, after manufacture of the ink jet printer, with an ink solvent preparation (10) possessing at least approximately the same physical properties as the ink. The ink solvent preparation (10) is only replaced by ink immediately before the ink jet printer is used for the first time in accordance with the instructions.
Patent DE-3809148-A1 (DE)
Title: Documentation device for leisure purposes
Inventor: HORUT JIRI KAREL
IPC: G11B33/06
Filed: 1988-03-18
Abstract: A combination of a simple camera and a simple audio-tape device is proposed for leisure purposes. With it, cassettes can be played and snapshots can be taken at the same time. Commercially available systems are used for the combination.
Patent DE-3810053-A1 (DE)
Title: Worktop and process for its production
Inventor: WERRES WILLY
IPC: A47B96/18
Filed: 1988-03-25
Abstract: A worktop comprises a core board (1), a top sheet (3) of a high-pressure laminate sheet or the like, which is applied to the upper side of the said core board and is drawn around the front edge of the worktop down to its underside, and an underside coating, which at least partially covers the underside of the core board (1). On the underside of the worktop, subsequently a sealing strip (4) of an extrusion hot-melt compound is applied to the front edge (2) as the underside coating. The sealing strip (4) fills a step recessed parallel to the front edge (2) of the core board (1). It prevents the ingress of moisture, in particular at the joint between the lower edge of the top sheet (3) and the wood material of the core board (1). <IMAGE>
Patent DE-3814322-A1 (DE)
Title: Damping insert with web bearing
Inventor: EICHELMANN HORST DIPL ING
IPC: E02D29/14
Filed: 1988-04-28
Abstract: In standardised top parts usual today for road gulleys and manhole covers, the bearing surfaces are mechanically treated in order to obtain a settled position, safe for traffic, of the gratings or lids. In addition, there are gratings and lids with an elastic damping insert, as a result of which the position is even improved. However, practice has shown that these measures do not fulfil their purpose if the bearing surfaces are considerably contaminated. In a combination of damping insert in the grating or lid and bearing webs in the frame, dirt pockets are obtained between the webs. Consequently, the bearing webs remain clean to a very large extent. The bearing webs also do not need to be machined in this combination, since the slight differences in height are compensated for by the damping insert. Thus it is always guaranteed that the gratings or lids are in a position which is safe for traffic.
Patent DE-3817475-A1 (DE)
Title: Screwless butt connection of abutting cable ducts
Inventor: MAETZLER EBERHARD DIPL ING
IPC: H02G3/06
Filed: 1988-05-21
Abstract: A screwless butt connection of abutting cable ducts of a U-shaped cross-sectional configuration has two slip-over sleeves, which span the butt joint of the ducts on the outside, and a dimensionally stable butt-joint moulding which is placed internally on the bases of the ducts, such that is runs transversely thereon, and likewise spans the butt joint of said ducts. The mutually opposite duct members are supported with respect to one another by the butt-joint moulding, which acts as a compression bar. The butt-joint moulding itself is connected in a positively locking manner, in the region of its two end sides, to the two slip-over sleeves by connecting means which run through a clearance delimited at the butt joint of the ducts between the end edges of said cable ducts.
Patent DE-3819357-A1 (DE)
Title: Process for regenerating a catalyst in a tubular reactor
Inventor: GOEHNA HERMANN DIPL ING
IPC: B01J8/06
Filed: 1988-06-07
Abstract: Granular catalyst which is arranged in the tubes of a tubular reactor is cooled by a coolant liquid during the production phase. The coolant liquid flows through the shell space surrounding the tubes. The shell of the reactor is designed for a pressure of 20 to 150 bar. During the regeneration, the coolant liquid is removed from the shell space and the catalyst is heated in the tubes in direct contact with hot regeneration gas to temperatures which are 100 to 400@C above the temperature during the production phase. In order to keep the temperature difference between the outside of the tubes and the inside of the reactor shell to at most 100@C during this, a gaseous or vaporous heating medium is introduced into the shell space.
Patent DE-3826121-A1 (DE)
Title: Display for speed limits
IPC: G09F9/33
Filed: 1988-08-01
Abstract: The invention relates to an arrangement to be used in motor vehicles for displaying the maximum speed which is permitted in each case. By using keys and electro-optical devices, those numerical values or speedometer digits can be represented or marked by means of an LED display or light-emitting diodes or lamps, which correspond to the respective speed limit.
Patent DE-3830033-A1 (DE)
Title: Built, oil-cooled piston for internal combustion engines
Inventor: MESSMER DIETER
IPC: F02B23/06
Filed: 1988-09-03
Abstract: A built, oil-cooled trunk piston for internal combustion engines comprises a piston head (1), which is detachably connected to a lower part (2) containing the bosses (9) for receiving the piston pin. A skirt (3) is pivotably connected to the lower part (2) by way of the piston pin. A ring channel (10), open to the piston skirt, is located radially outside in the area of the piston head (1). It is intended that cooling oil injected from the crank chamber be shook up in this ring channel (10). For this purpose an annular disc (15), which can be applied to a collar of the piston lower part (2), is provided, which completely covers the ring channel (10). In the lower part (2) an oil duct (20), running parallel to the longitudinal axis of the piston, is provided, through which the cooling oil can be injected into the ring channel (10). <IMAGE>
Patent DE-3832828-A1 (DE)
Title: Coating composition, comprising fluoropolymers
Inventor: BLICKLE PETER DR
IPC: C08J7/056
Filed: 1988-09-28
Abstract: A coating composition is described which comprises fluoropolymers with a hydrophilicising action, the composition consisting of A) a copolymer which is composed of tetrafluoroethylene or chlorotrifluoroethylene, a comonomer which contains -COOM groups (M = alkali metal, ammonium group) and, if desired, a fluorine-containing vinyl ether, dissolved in a mixture of an aprotic solvent and water and mixed with B) a colloidal, aqueous dispersion of a fluoroolefinic or fluorochloroolefinic homo- or copolymer having a melting point of </= 200@C. The composition may also contain a diluent and conventional levelling agents, and is particularly suitable for coating fluorinated plastic sheets which can be employed as roof coverings, the purpose of such a coating being to promote the run-off of water.
Patent DE-3836427-A1 (DE)
Inventor: HOESEL PETER
IPC: C25D17/16
Filed: 1988-10-26
Abstract: In order to provide increased throughput and occupation of the bath stations (12) with minimum space requirement in a transfer installation (10) for cleaning and electroplating processes having an inlet station and outlet station for the objects to be treated, having a plurality of bath stations (12) along a transport length extending between the inlet station and outlet station, and having a transfer device for transporting the objects along the transport length and for charging and emptying the bath stations (12), with side trucks (16, 18) held on lateral guides, it is proposed that the transfer device of the bath stations (12) comprises a second guide (22) for a second side truck (18) along the transport length and that the two side trucks (16, 18) associated with the first and second guide (20, 22) are movable independently of one another, essentially along the entire transport length. <IMAGE>
Patent DE-3836575-A1 (DE)
Title: Magnetic-tape cassette apparatus with a drive serving for playing magnetic-tape cassettes
Inventor: KLOES-HEIN KARL
IPC: G11B15/10
Filed: 1988-10-27
Abstract: The invention relates to a magnetic-tape cassette apparatus with a drive (1) serving for playing magnetic-tape cassettes (2), which has a cassette-loading mechanism which, by means of a lift lever (3), moves a cassette compartment (1a), which is guided displaceably in lift guides, with a cassette (2) received by it between an ejecting position and a playing position. In this arrangement, the cassette (2) is displaceable along a cassette guide (33) and a chassis plate (32) of the drive (1) comprises a metal plate, around which components of the drive (1) are formed by injection-moulding from plastic, at least one of the components (33, 34) being formed outside the chassis plate (32), but bonded to it, when moulding is carried out around the chassis plate. For moving into its operating position, the component (33, 34) can be swivelled about a joint (35, 36) which is formed by injection moulding at a hole (39a, 49a) in the chassis plate (32). <IMAGE>
Patent DE-3840096-A1 (DE)
Title: Lifting device protected against falling
Inventor: ZEITZSCHEL GUENTER
IPC: G21C19/10
Filed: 1988-11-28
Abstract: In an adjustable carrying device (4, 5) with a hanging threaded spindle (7) and a travelling nut (10) which is movable on the threaded spindle (7) and on which the load acts, a separately fastened carrying rod (14) passes through the threaded spindle as hollow spindle (7). The carrying rod (14) supports the bottom end (42) of the threaded spindle. The carrying device secured in this way is especially suitable for vertical-lift gates, doors and bulkheads, where a fall has to be ruled out in the event of a lifting element breaking. <IMAGE>
Patent DE-3905297-A1 (DE)
Title: Process for producing polycrystalline semiconductor material layers by plasma-excited vapour phase deposition
Inventor: GRIEP SUSANNE DR RER NAT
IPC: C23C16/452
Filed: 1989-02-21
Abstract: A process for producing polycrystalline semiconductor material layers, in particular composed of silicon, by vapour phase deposition in a plasma reactor (2), the reaction gas (1) is supplied with hydrogen in the activated state via an additional gas supply line (13) in the reactor (2). The activation is preferably carried out by an incandescent cathode (thermionic cathode) (14) disposed in the hydrogen gas supply line (13). The process enables the deposition of homogeneous polycrystalline semiconductor material layers at substrate temperatures in the range between 200 and 400@C; the deposition onto normal glass substrates can be carried out in plasma reactors of simple design. The process is used for the fabrication of transistors by means of thin-film techniques. <IMAGE>
Patent DE-3910696-A1 (DE)
Title: Method for monitoring the pressure in a pressurised gas-filled chamber and a device for carrying out the method
Inventor: BOEHM CHRISTIAN DIPL ING
IPC: G01L19/04
Filed: 1989-04-03
Abstract: In a switching installation having switching springs 1, 2, associated chambers 5 are provided with pressure sensors 7 for monitoring the gas pressure. The pressure measuring signals from these pressure sensors 7 are fed to a processor in a controller 8, and are there logically combined with a temperature signal from a temperature sensor 11 and processed to form switching or display signals. In order to be able, in a simple way, to make reliable statements about the switching or display signals or to carry out switching measures, the switching or display signal is corrected as a function of the ambient temperature of the chamber. <IMAGE>
Patent DE-3911119-A1 (DE)
Title: Mining method and machine equipment for carrying out the method
Inventor: WEBER HEINZ
IPC: E21C41/26
Filed: 1989-04-06
Abstract: During continuous and flat-spread opencast mining of mineral beds (10), the problem of the starting cut of a new "slice" (44) of predeterminable cut depth regularly occurs. In the novel method, mining is carried out linearly and continuously along parallel inclination lines (27) and the excavated material is removed via a belt system (31), trench-like excavation being carried out for "starting to cut" the "slice" (44). The belt system (31) consists of several belt units (33) which can be put individually into a new position during the extraction movement of the winning machine (32). The extracted material can also be conveyed away continuously when the belt system (31) is shifted as a body from one side of the winning machine (32) to the other side. <IMAGE>
Patent DE-3913638-A1 (DE)
Title: Forming speech pattern for speech-controlled dishwashers etc. - involves acoustic-visual repetition of code word spoken by operator
Inventor: WIPPERFUERTH FRANZ-JOSEF ING G
IPC: G10L15/06
Filed: 1989-04-26
Abstract: A process for speech pattern formation is for large speech-controlled household appliances, e.g. dishwashers and washing machines.  The code word spoken by the  machine user is repeated acoustically by the appliance and/or the meaning of the word is displayed optically. When the input code word agrees with the displayed or acoustically repeated code word, a start key is operated. ADVANTAGE - An average speech storage pattern that can be used universally is formed with the help of the code words input by different users.  Users with different dialects and speech habits can use the speech control directly.
Patent DE-3922593-A1 (DE)
Title: Low weight, high strength die castable alloy - contg. magnesium with up to 10 wt. per cent lithium
Inventor: LAUKOETTER KARL HEINZ
IPC: C22C23/00
Filed: 1989-07-10
Abstract: A specifically low weight alloy suitable for hot and cold die casting is a Mg-Li alloy contg. up to 10 wt. %. The alloy pref. contains 7-9 wt. % Li. The alloy is produced under inert gas and die cast with a high pressure of approx. 500 bar at a speed of 30m/sec into the mould. The inert gas which may be present when making and casting the alloy is pref. SFo or SO2. ADVANTAGE - Besides being light the alloy has good strength properties.
Patent DE-3925266-A1 (DE)
Title: Dyeing jig drive - is infinitely variable hydrostatic drive system with electronic control
Inventor: EICHHOLZ WILLI
IPC: B65H23/18
Filed: 1989-07-31
Abstract: The drive system for each roller winding, in a dyeing jig, is an infinitely variable adjustable hydrostatic drive using an adjustment pump and motor. They operate in a closed circuit, with electronic control for the driving and braking functions. ADVANTAGE - The mechanism gives a constant fabric speed through the dye path, with fine corrections for the changes in fabric tension, by altering the rotary speeds of the winding and unwinding rollers.
Patent DE-3927072-A1 (DE)
Title: Differential gear with compact dimensions - has worms and worm-wheels freely rotatable in differential case
Inventor: ARAKAWA YOSHICHIKA
IPC: F16H48/38
Filed: 1989-08-16
Abstract: The differential gear comprises a pair of axle shafts which support a differential cage (11) which contains a pair of worms (13L, 13R) each set as an engaged unit with one end of the axle shafts.  Pressure discs (14,15,16) are inserted between the end sides of the worms and the differential cage while several pairs of assocaited wormwheels (12L, 12R) are mounted freely rotatable in the differential cage (11) relative to the axis of the worms and each mesh with associated worms but engage with each other for a relative rotation. At least one of the dividing dia. which produce the meshing engagement between the wormwheels and worms is different from the other. USE/ADVANTAGE - The low-cost differential gear fulfils the function of an uneven division of the drive torque left and right or forwards andm backwards as well as the function of a restriction in the balance.
Patent DE-3931621-A1 (DE)
Title: Baking oven burner exhaust gas nitrous oxide redn. - using adjustable partial flue gas recycle to the burner to cool the burner flame and flame core
Inventor: FISCHER GEORG
IPC: A21B1/28
Filed: 1989-09-22
Abstract: The burner of a hot gas circulation oven has an entry around the flame tube through which a portion of circulating gas is recycled. The flame and particularly the flame core is thus cooled. The dwell time of the gases in the burner is pref.  controlled by an exhaust gas baffle. The burner pref. has perforations in the area of the flame tube and the pressure of the circulation blower is pref. adjustable. USE/ADVANTAGE - Oil and gas burning hot gas circulation ovens with high flame temps.. Reduced nitrous oxide emission.