baber/WOPTO huggingface dataset:
Patent DE-3412525-A1 (DE)
Title: Process for flame-hardening of the inner pipe of a double-layer pipe
Inventor: ESSER ALEXANDER
IPC: C21D9/14
Filed: 1984-04-04
Abstract: The inner pipes of double-layer pipes have hitherto been hardened by moving a disc burner or rod burner through the rotating pipe and thus heating the inner pipe to the necessary temperature. At a distance behind the burner a quenching spray is provided which then suddenly reduces the temperature of the inner pipe so that a hardened structure is formed. Since the pipes generally have more or less large tolerances, heat bridges form in the contact areas of the inner pipe with the outer pipe via which the heat can flow away unhindered so that the inner pipe is not heated uniformly overall and, consequently, following the quenching, differently hardened regions are present. According to the invention, the outer pipe 3 is now also heated together with the inner pipe 2 in the same pipe length region or in advance. As a result, heat bridges are avoided and an undesired flowing away of the heat is prevented. The inner pipe 2 is uniformly hardened throughout. The quenching of the inner pipe 2 can be carried out in the same length region in which the outer pipe 3 is cooled. However, it can also be quenched in advance of the outer pipe cooling. <IMAGE>
Patent DE-3417822-A1 (DE)
Title: Device for exhaust gas recirculation, especially for diesel engines
Inventor: VOGEL WOLFGANG DIPL ING
IPC: F02D21/08
Filed: 1984-05-14
Abstract: The invention relates to exhaust gas recirculation on diesel engines, especially on vehicles. The aim of the invention is a recirculation of exhaust gas as a function of the load and achievement of optimum air pollution control efficiency. The object of the invention is to create a device for exhaust gas recirculation by means of which the quantity of exhaust gas recirculated is controlled as a function of the delivery of the fuel injection pump. The essence of the invention lies in the fact that in the device a control element, which is provided with bores and carries a piston, is located in a housing. A sliding control sleeve is connected to the control rod of the injection pump. In a second housing is a further piston which is connected to a formed cone. This closes the intake opening off from the exhaust opening. The two housings are connected to one another by a line. The preferred sphere of application of the invention is vehicle construction. <IMAGE>
Patent DE-3420909-A1 (DE)
Title: Method and device for the protection of invertors in high-voltage, direct-current, transmission systems
Inventor: KAUFHOLD WOLFGANG DIPL ING
IPC: H02M1/084
Filed: 1984-06-05
Abstract: In order to prevent the pulling out of invertors when using the output variables of their control sets (2) and signal generators (3) for the margin-angle measurements from the thyristor voltage of the invertor, both signals containing the overlap and signals which are free of overlap are formed for each phase from the relevant output variables, and the actual overlapping signals are derived therefrom, from which an overlap desired value is obtained as a function of the set signal, which determines the measurement period, of the relevant control set and of the direct current flowing in the invertor before commutation, by integration, and is compared with the overlapping signal, an additional control signal for the invertor becoming effective if the overlapping signal predominates. <IMAGE>
Patent DE-3422396-A1 (DE)
Title: Process and apparatus for the wet treatment of textile material
Inventor: SCHUIERER MANFRED DIPL ING
IPC: D06B3/26
Filed: 1984-06-15
Abstract: The invention relates to a process and an apparatus for the wet treatment of textile material circulating continuously in a vessel, the textile material passing through an immersion trough and the treatment liquor drawn off from the immersion trough by overflow being fed in countercurrent to the rising strand of textile material. This results in an intensive interpenetration between the treatment liquor and textile material.
Patent DE-3422846-A1 (DE)
Title: Paper machine breastbox
Inventor: FUJIWARA HARUYOSHI
IPC: D21F1/00
Filed: 1984-06-20
Abstract: The invention relates to a paper machine breastbox which is improved to the effect that a first flow path (5) having a uniform cross-section in the width or cross direction serves to introduce a flow detachment for producing turbulence in the flow and thus movement or vortexing of a liquid paper pulp and, in the direction of flow, a second flow path (6) having a uniform cross-section in the width or cross direction is connected to the first flow path (5), the flow cross-sectional area of which second flow path uniformly or smoothly repeatedly contracts and expands in order to subject the liquid paper pulp repeatedly to an acceleration and retardation without introducing turbulence into the flow. <IMAGE>
Patent DE-3423440-A1 (DE)
Title: Magnetic drive
Inventor: SANDERN ERWIN
IPC: H02K53/00
Filed: 1984-06-26
Abstract: Published without abstract.
Patent DE-3426763-A1 (DE)
Title: Releasable rigid connection of items of furniture, in particular seat elements
Inventor: SCHROEDER GUENTER
IPC: A47C13/00
Filed: 1984-07-20
Abstract: The invention is intended to remove the disadvantages occurring when joining items of furniture together to form groups of furniture or dismantling them. A connection was previously produced by clamping rings, frames or brackets. In this case, the disadvantages are difficult assembly or visible measures. In this case, the invention is intended to provide a remedy: The legs of the items of furniture are given a cutout. Engaging in this (these) cutout(s) is a fitting connecting piece which is not visible since the connecting piece is concealed by the legs and the item of furniture. By tilting an item of furniture, the legs are raised from the ground and the connecting piece is then pushed halfway under said legs. The furniture is then placed on the connecting piece and the same procedure is likewise followed with the adjacent item of furniture. As a result, the individual items of furniture are connected to one another in an non-displaceable manner. The aim of easy assembly and dismantling with little effort and expenditure is thus achieved.
Patent DE-3428357-A1 (DE)
Title: Apparatus for treating compressed air
Inventor: COOPER PETER HENRY
IPC: F16N7/34
Filed: 1984-08-01
Abstract: An apparatus for treating compressed air contains an integral air filter (12, 24) which removes particles from a flow of compressed air as well as a device (14, 28) which delivers oil into the filtered air flow, which is then directed to pneumatically actuated devices. <IMAGE>
Patent DE-3438310-A1 (DE)
Title: Device for homogenising the charging of charging material via a feed, in particular a double-door feed, into a comminuting machine
Inventor: STEINBISS EBERHARD
IPC: B02C13/288
Filed: 1984-10-19
Abstract: Comminuting machines through which gas flows and which are fed with charging material via a double-door feed, experience, during discontinuous feeding, impact loads which require the mill drive to be designed to be stronger than would be required with continuous feeding. By means of the device according to the invention, the charging of the charging material is homogenised by repeated deflection of the charging material in the material-charging shaft out of its direct dropping direction. The deflection is effected by installations (5), which change the direction of drop, in the material-charging shaft (3) of the comminuting machine (4) and/or by means of the zigzag-shaped course of the material-charging shaft. <IMAGE>
Patent DE-3443845-A1 (DE)
Title: Elektrode fuer die verwendung bei der elektrochemischen deionisierung und verfahren zu ihrer herstellung
Inventor: BRIDGER NEVILL JOHN
IPC: B01J47/06
Filed: 1984-11-30
Abstract: Die Erfindung betrifft eine Elektrode für die Verwendung bei der elektrochemischen Deionisierung, welche einen Stromzuleitungsträger enthält, der eine innige Mischung eines Ionenaustauschermaterials und eines Bindemittels umfaßt.  Die Elektrode ist mit einer inerten, für den Elektrolyt permeablen äußeren Umhüllung, die an der Mischung haftet, versehen, um die Mischung während der Verwendung der Elektrode beim elektrochemischen Ionenaustausch in Kontakt mit der Stromzuleitung zu halten. Die Umhüllung kann in der Form eines Faservliestuches aus Polyamid vorliegen und kann mit einem äußeren Begrenzer, z. B. in Form eines Metall- oder Kunststoffnetzwerks, versehen sein.
Patent DE-3445743-A1 (DE)
Inventor: KLEMM JOHANN
IPC: F04B49/00
Filed: 1984-12-14
Abstract: 1. Device for disengaging a clutch (9) connecting a motorised drive to a compressed air compressor (1), having an annular piston (43) guided in an annular chamber (41) and acted on by compressed air, this piston, on being actuated by pressure, acting indirectly or directly in opposition to spring elements (45) used to disengage the clutch and having a clutch control valve (7) which is connected to the annular chamber and controls its aeration and ventilation, characterized in that teh clutch valve (7) is connected to a compressed air supply (5) and has a valve mechanism for the controlled feeding of compressed air into the annular chamber (41) and for ventilation the same down to a residual pressure, wherein an outlet (19) of a pressure regulator (3) connected to the compressed air compressor (1) and conducting a control pressure is connected to a control connection 23) of the clutch control valve (7), and the valve mechanism of the clutch valve has a piston (25) which can be acted on by the control pressure of the pressure regulator present at the control connection (23), this piston controlling, in dependence on the control pressure, the connection of the annular chamber (41) to the compressed air supply connected to the clutch control valve or to a ventilation valve (35).
Patent DE-3447099-A1 (DE)
Title: Mounted-appliance combination for tractors for ground-working and seedbed preparation
Inventor: WEICHEL ERNST
IPC: A01C7/08
Filed: 1984-12-22
Abstract: An appliance combination for ground-loosening and seedbed preparation, which is provided for mounting on a tractor, has an essentially tunnel-shaped frame (4), in which the input shaft (13) of the main gear (7) is located above and behind the implement shaft (10), and the longitudinal centre line (7e) of the following spur gear (7c, 7d, 29a, 29b) extends obliquely from the rear at the top forwards at the bottom as far as the implement shaft (10), as seen in the direction of travel. <IMAGE>
Patent DE-3447132-A1 (DE)
Title: Hydraulic device
Inventor: KOERNER GERHARD
IPC: H01H33/34
Filed: 1984-12-22
Abstract: A novel hydraulic device for driving a piston/cylinder arrangement for operating an electrical high-voltage power circuit breaker (10/11) is distinguished by the fact that it contains a first high-pressure reservoir (21) and a second high-pressure reservoir (22) and in that the second high-pressure reservoir (22) is dimensioned such that the hydraulic fluid stored in it is exclusively sufficient for only one switching-off operation, the first high-pressure reservoir (21) in contrast having a volume which corresponds to the volume of the second high-pressure reservoir plus a fluid quantity for the switching-on process. In this case, the (operating) pressure range of the first hydraulic reservoir is intended to be above that of the second hydraulic reservoir. In other respects, the two high-pressure reservoirs (21, 22) are connected to one another such that the first high-pressure reservoir (21) causes the second high-pressure reservoir (22) to be filled during the switching-on process once the high-voltage power circuit breaker has been switched off and the said second high-pressure reservoir (22) has in consequence been emptied. In consequence, a mechanically comparatively uncomplicated hydraulic device can be achieved for the said requirement case, in the case of which - and this is the primary object - the energy for two directly successive switching-off processes (O-CO cycle) is virtually completely identical. <IMAGE>
Patent DE-3500822-A1 (DE)
Inventor: SPIEGELBERG ANDREAS
IPC: A61B5/03
Filed: 1985-01-10
Abstract: In order to measure the pressure inside the human body or the body of an animal, the pressure is transmitted to a pressure transducer (7) by means of a balloon (1) only partly filled with a gaseous medium, which is applied to a double or multi-luminar catheter(2). The partial filling required for reliable pressure transmission is achieved by one or several piston-pumps (6, 12) or a combination of one or several piston-pumps with one or several valves (8, 9).
Patent DE-3514194-A1 (DE)
Title: Furniture
IPC: A47B88/00
Filed: 1985-04-19
Abstract: In an item of furniture, e.g. a roller container, an extensible drawer (66) has at its front end an auxiliary foot (76) which, when the drawer is retracted, lies a short distance (x) above the standing surface and, when the drawer (66) is extended a long way, comes into sliding or rolling engagement with the standing surface. <IMAGE>
Patent DE-3515670-A1 (DE)
Title: Process for operating biological clarification pits and clarification lagoons
Inventor: MACHNICKI MANFRED
IPC: C02F1/32
Filed: 1985-05-02
Abstract: A process for operating biological clarification pits and clarification lagoons by irradiation of the surface of the clarification pit or the clarification lagoon with artificial light, the spectrum of which approximates the spectrum of sunlight.
Patent DE-3517763-A1 (DE)
Title: Method and apparatus for maintaining a predetermined yarn twist
Inventor: WASSENHOVEN HEINZ-GEORG
IPC: D01H13/22
Filed: 1985-05-17
Abstract: The diameter of the running yarn (23) is monitored continuously by means of a yarn-diameter recording element (27). In the event of upward deviations beyond an upper tolerance limit, friction-reinforcing action is taken on the friction-spinning apparatus (1) by means of a friction-control device (30), for example by setting the motor (21) driving the friction elements (11, 12) to a higher speed by means of a speed-adjusting device (33). In the event of downward deviations in diameter below a lower tolerance limit, friction-reducing action is conversely taken on the friction-spinning apparatus (1). <IMAGE>
Patent DE-3518235-A1 (DE)
Title: Dynamic noise suppression circuit
Inventor: ANDRIANOV VITALIJ VASILEVIC
IPC: H03G1/00
Filed: 1985-05-21
Abstract: The invention relates to radio and audio systems and concerns in particular a dynamic noise suppression circuit. The dynamic noise suppression circuit contains an adjustable main low-pass filter (1) which has a series circuit comprising field effect transistors (2, 6), an active element (10) and a control unit (11) which is connected to the field effect transistors (2, 6). The control unit (11) has a series circuit comprising an algebraic adder (22), a weighted filter (23), a minimum value limiter (24), a frequency corrector (25) and an amplitude detector (28). The dynamic noise suppression circuit also contains an additional adjustable high-pass filter (14) which has a series circuit comprising an external capacitor (19) and a field effect transistor (15) which is connected to the field effect transistors (2, 6) and the algebraic adder (22). The dynamic noise suppression circuit contains an amplitude detector (29) which is connected to an amplifier (27) of the frequency corrector (25), a regulator (33) for the final value of the passband, a fixer (32) for the final value of the passband and a control current source (34). The output of the regulator (33) is coupled with the inputs of the amplitude detectors (28, 29) and the fixer (32). The invention can be used in different audio system and audio reproduction devices. <IMAGE>
Patent DE-3519153-A1 (DE)
Title: Wall element
IPC: E04C2/38
Filed: 1985-05-29
Abstract: The present invention relates to a wall element which is made of an insulating element, arranged in a steel frame, and a visible panel coated with ceramic. A description is given of the steps taken by the invention in order to achieve a high-grade resistance to weathering and optimum sound insulation while, at the same time, preventing thermal stresses and the formation of condensation.
Patent DE-3519455-A1 (DE)
Title: Thiophene derivatives
Inventor: SCHEFCZIK ERNST DR
IPC: C07D333/38
Filed: 1985-05-31
Abstract: The invention relates to compounds of the general formula I <IMAGE>  in which     X is alkoxy, aroxy or optionally substituted amino, Y is nitrophenyl which is optionally substituted by chlorine, bromine, methoxy or methyl and   Z is cyano or carboxylic ester.   The compounds according to the invention are suitable as diazo components.
Patent DE-3521520-A1 (DE)
Title: Process and installation for producing expanded pellets from materials containing glass-forming silicates
Inventor: PIEPER HELMUT DIPL ING
IPC: C04B20/06
Filed: 1985-06-15
Abstract: In a process for thermally treating particles expandable by foaming in the plastic state, in particular for producing expanded pellets from fly ash, harbour silt, gravel mud and similar materials containing glass-forming silicates, green pellets are prepared from a mixture containing these materials and expanding agent, these pellets are dried, hardened and preheated to a temperature below the softening point, preheated pellets being expanded batchwise in a discontinuous working step in each case in a substantially upright-directed flow field of hot gas in suspension, with a control system maintaining a preset temperature/time curve. <IMAGE>
Patent DE-3525170-A1 (DE)
Title: Magnetic recording carrier
Inventor: MUTA KUNIHIKO
IPC: G11B5/716
Filed: 1985-07-15
Abstract: A magnetic recording carrier having a layer support comprising a plastic film and a magnetic layer of a thin metal film on one or both sides of the layer support. The layer support has a modulus of elasticity of at least 800 kg/mm<2> and preferably at least 1400 kg/mm<2>.
Patent DE-3529738-A1 (DE)
Title: Tear-gas safety lock for bicycles
Inventor: HUBERT HARTMUT E
IPC: E05B45/00
Filed: 1985-08-20
Abstract: The tear-gas safety lock serves for forestalling and preventing thefts of bicycles. Conventional locks offer resistance only by means of metal connections which can be overcome by appropriate tools. (Force factor). The addition of tear gas in the lock increases safety many times, since, first, the metal sheath and the tube enclosed by the metal sheath have to be damaged so that the gas can flow out. Further manipulations of the lock are possible only after a lengthy waiting time. (Time factor). The combination of force plus time largely prevents normal street theft, especially as the thief relies on rapid action and escape from the scene of the crime. The gas presents no danger to health, but makes it necessary to move away from the lock on account of the high irritant effect. (Respiratory tract, eyes, skin). The tear-gas safety lock consists of a tube having a movable metal sheath, similar to the tube for a hand-held shower, and of a safety lock which encloses the ends of the tube.
Patent DE-3533306-A1 (DE)
Title: Process for separating and clear filtration of suspensions and apparatus therefor
Inventor: REITER ADOLF
IPC: C12H1/075
Filed: 1985-09-18
Abstract: The invention relates to a novel process for the separation and clear filtration of suspensions, for example of beverages containing suspended matter, such as beer containing yeast and haze material, and the like, in which a suspension to be freed from material above a certain particle size is conducted through a separation stage, such as a filter or a centrifuge, in which the suspension is separated by an ultrafiltration stage into a clear filtrate and a concentrated suspension and this concentrated suspension is separated in a solids separation apparatus into a solids-rich phase and a liquid phase which is returned to the suspension stream upstream of the ultrafiltration stage. The invention also relates to an apparatus for carrying out this process.
Patent DE-3533347-A1 (DE)
Title: Print head for a multi-colour ink jet printer
Inventor: FLECHTNER VOLKER DIPL ING
IPC: B41J2/21
Filed: 1985-09-19
Abstract: The invention relates to a print head for a multi-colour ink jet printer. The aim of the invention is to provide a print head for multi-colour ink jet printing which can be produced cost-effectively and guarantees a clear printed image, the object consisting in keeping the dimensions of the print head relatively small by means of a favourable construction thereof. This is achieved by a division of the ink chambers in each case into two identical fluid chambers, by providing a central web which separates the ink colours from one another so that it is possible using a piezo element to apply rhythmic interferences for a synchronous droplet formation simultaneously to two completely separate ink jets. <IMAGE>
Patent DE-3538623-A1 (DE)
Title: Device for drying material webs, in particular paper webs
Inventor: PINTER REINHARD DR
IPC: D21F5/04
Filed: 1985-10-30
Abstract: Device for drying material webs, in particular paper webs, with a drying cylinder (1) and with a continuous sieve band (2) which partially winds round the drying cylinder (1) and which carries the material web to be dried, in which device, in the run-on and/or run-off region of the sieve band onto or from the drying cylinder (1), at least one blowing or suction box (6) is provided, there being provided at least on the side of the blowing or suction box (6) adjacent to the drying cylinder (1) at least one seal (8) which bears against the surface of the drying cylinder (1) and extends along the entire axial length of the side of the blowing or suction box (6) adjacent to the drying cylinder so that the gap between the blowing or suction box (6) and the drying cylinder (1) is sealed. <IMAGE>
Patent DE-3541326-A1 (DE)
Title: Measuring and/or sampling probe for metal melts
Inventor: BOLLEN THEO PIETER CLEMENT
IPC: G01K1/12
Filed: 1985-11-22
Abstract: The invention relates to a device for performing measurements in metal melts, having an immersion measuring head (1), inserted into the front end of a tube, which head holds a measuring device, with the parts of the measuring device which project relative to the body of the measuring head being covered with one or more caps. To increase the precision of measurement, an aluminium foil is applied over the outer cap, which preferably consists of cardboard, and rests tightly against this cap. In another embodiment of the invention, the cardboard tube (2), surrounded by an outer refractory sheath (12), is covered, at least in the region of the outer tubular sheath (12), with an aluminium foil (10) which also covers the front outer surface of the body of the measuring head (1). Further, the body of the measuring head can be wrapped with an aluminium foil, and is inserted, without use of a cardboard tube, into the front end of a tubular refractory sheath. The body can also be mounted in the front end of a cardboard tube; in that case the said tube is provided with an aluminium foil, at least over the length which is immersed in the melt. <IMAGE>
Patent DE-3541571-A1 (DE)
Inventor: ZAHN CHRISTIAN
IPC: B29C43/10
Filed: 1985-11-25
Abstract: 1. Method of making a steel helmet with a lining (9) of the steel cap (4) of textile layers (5) impregnated with a thermo-setting binder, in which the textile layers (5) are laid in the steel cap (4) which, for its part is placed in a heated mould (1), and are deformed and hardened by pressing the textile layers (5) on all sides against the heated steel cap (4), characterized in that the heating of the steel cap and the pressing of the textile layers (5) against the heated cap are so effected that a firm bonding of the textile layers (5) to the steel cap (4) is produced.