baber/WOPTO huggingface dataset:
Patent DE-3824202-A1 (DE)
Title: Method for controlling a four-quadrant controller
Inventor: MANGOLD CHRISTIAN DIPL ING
IPC: H02M1/12
Filed: 1988-07-16
Abstract: Asynchronous drive motors of three-phase locomotives are frequently supplied from an AC voltage network via a four-quadrant controller, a DC voltage intermediate circuit and an invertor. Interfering network harmonics occur in the intermediate circuit in the case of a distorted contact-wire voltage on the input side which is not sinusoidal. In order to avoid these harmonics it is proposed to transform the actual value of the contact-wire voltage (XAUF) and the actual value of the controller alternating current (XAIF) from the time domain into the frequency domain by means of discrete Fourier transformation. The complex current control variables (I3R, I3I, I5R, I5I) and voltage control variables (U3R, U3I, U5R, U5I) for the harmonics can thus be determined in the frequency domain - especially for the third and fifth harmonics -, and can then subsequently be transformed back into the time domain. This allows a compensation control voltage (YAUSTK) and a compensation control current (WAIK) to be formed in order to eliminate the interfering harmonics, and to be inserted into the control system of the four-quadrant controller. <IMAGE>
Patent DE-3825256-A1 (DE)
Inventor: KOPONEN TAUNO KALERVO
IPC: F24B7/00
Filed: 1988-07-25
Abstract: A heat radiation utilising apparatus which prevents heat radiation to a room and reduces the surface temperature of heaters, lowers the dust quantity in breathing air, and improves the heating effect of the heater, reducing temperature differences between ceiling and floor comprises plates (5) fastened one on top of another by support means (2) on a surface of a cover plate (1), and which have a horizontally directed upper edge higher than the lower edge (19) of the adjacent higher plate (5), and which plates (5) form an inclined upward air gap (7) between the plates (5) thereby causing air to flow from a space (6) between the cover plate (1) and the plates (5) towards the radiating surface of a room heater. <IMAGE>
Patent DE-3825401-A1 (DE)
Title: Vertical carousel
Inventor: SIEGLER ADRIAN DIPL ING
IPC: B65G1/127
Filed: 1988-07-22
Abstract: In a vertical carousel having carriers (3) fastened on chain strands (6) by means of carrying arms (4, 5), at least one chain guide rail (11) is provided with a window (15) for a pressure-measuring sensor (16), against which pressure-measuring sensor (16) a guide element (9) arranged at the end of a carrying arm (5) is supported when a carrier (3) is located in the region of a charging and removal opening (2) of the vertical carousel. It is possible with the aid of the pressure-measuring sensor (16) to prevent overloading of the vertical carousel and the formation of unbalances. <IMAGE>
Patent DE-3828851-A1 (DE)
Inventor: KURT GOTTFRIED
IPC: F16C33/66
Filed: 1988-08-25
Abstract: A horizontal-axis oil-lubricated cylindrical roller bearing arrangement for bearing traction motors of rail vehicles, including a stationary bearing bracket, a cylindrical roller bearing having an outer ring fastened to the stationary bearing bracket, a shaft on which an inner ring of the cylindrical roller bearing is fastened, and an annular oil chamber arranged coaxially relative to the bearing and having an upper section connected with the bearing by at least an oil outlet in the chamber wall facing the bearing and connected by at least one duct with an oil-catcher device. The oil-catcher device is supplied from a gear case serving as a lubricant oil reservoir and is placed on the inside of the gear case. The oil-catcher device meters the amount of oil to be caught by the catcher device. Feeding of the lubricating oil to the annular oil chamber takes place at a level which is below the oil outlet from the annular oil chamber into the bearing. Between the annular oil chamber and the bearing is provided an annular interspace which contains means for producing a lubricating oil mist for bearing lubrication. To assure bearing lubrication after downtimes, an oil retention device for storing a reside amount of oil is provided in the interspace.
Patent DE-3833623-A1 (DE)
Title: Valve arrangement for the controlled supply of at least one working space with hydraulic fluid
Inventor: RUEB WINFRIED DIPL ING
IPC: F16H61/06
Filed: 1988-10-03
Abstract: A valve arrangement for the controlled supply of at least one working space, for example of a control member of a power shift transmission, with hydraulic fluid is described in which a pressure-regulating valve is incorporated in the hydraulic-fluid supply line leading to the working space. Attached to the spring side of the pressure-regulating valve is a control-pressure line which is connected to an accumulator cylinder for the modulation of the pressure in the supply line. Allocated to the accumulator cylinder is a control valve which, against the force of the restoring spring under the action of a piston displaceable in the accumulator cylinder against spring force, can be moved from a first position in which it opens a displacement line, attached to the return side of the piston, to the tank in a controlled manner into a second position attaching the displacement line to a higher pressure level. This valve arrangement enables a single modulation system to be utilised for any number of control members by the modulation system moving again into an initial ready position with the start of every new control action.
Patent DE-3834709-A1 (DE)
Title: Image recording device
Inventor: GRETHEN HARTMUT DR ING
IPC: B41J2/51
Filed: 1988-10-07
Abstract: In a known image recording device with a recording head which has a plurality of recording elements arranged in a gap, the outer recording elements are larger in design than the other recording elements in order to avoid, when printing successive lines of print, unprinted white strips on the recording carrier to be printed. In order to simplify manufacture and operation of the recording head, the recording head (1) has at least one additional recording element more than the number of recording elements (7) required to print a printing line level, the at least one additional recording element being provided with the same printing data as its respectively directly adjacent recording element (7). <IMAGE>
Patent DE-3834794-A1 (DE)
Title: Composition for oral administration to treat psoriasis
Inventor: SCHIELEIN F
IPC: A61K9/48
Filed: 1988-10-12
Abstract: The composition contains one or more fumaric acid compound(s) as active substance(s) as well as, where appropriate, conventional vehicles and/or ancillary substances and is formulated in the form of a presentation which releases the active substance(s) in the stomach and which causes delayed release of the active substance(s) during the residence time in the stomach. The compositions according to the invention cause better absorption of active substance than the previously disclosed compositions releasing the active substances in the intestinal tract and also permit the use of single active substances.
Patent DE-3900942-A1 (DE)
Title: Multiple sensor system
Inventor: FLEISCHMANN ROBERT DR
IPC: G01N17/00
Filed: 1989-01-14
Abstract: Multiple sensor arrangement for monitoring installations which are loaded by chemically and mechanically aggressive multi-phase flows. A description is given of a combination sensor system for the detection of the operating conditions in installations having flowing media. The basis is the transient determination of impingement rates, flow velocities, concentrations, pressure and temperature. For this purpose, new sensor arrangements and known principles are brought together in a novel type of formulation. The construction is shown, in particular, in Figure 1. <IMAGE>
Patent DE-3901899-A1 (DE)
Title: Method for making an articulated connection between two parts formed as castings, in particular of a metal alloy, and also a buckle or accessories for belts, shoes and leather goods with an articulated connection produced by this method
Inventor: BATTISTI GIANFRANCO
IPC: B22D19/12
Filed: 1989-01-23
Abstract: Method for producing the articulated connection between two parts in the form of castings, in particular castings composed of a metal alloy, having the following stages:   - in a first casting operation, a first part is produced on which there are provided two coaxial, mutually opposite blind seats which are to be connected in articulate fashion to the ends of coaxial, mutually opposite pins, arranged at a limited distance from one another, of the second part, - after casting and after cooling, the first part is arranged in a recess, determining the position of the articulated connection, in the mould for the casting of the second part, this recess for the arranging of the first part having no runner for the casting material or the molten metal alloy, and the blind seats of the first part which has been introduced into the recess forming the end closure of the impressions in the mould which are used for the casting of the said pins, - the second part is cast with the aid of the mould, while the first part is arranged in the said recess, during which casting of the second part the said pins are produced, which engage by their ends in the seats of the first part and in this way constitute the articulated connection, since the surfaces of the pins, owing to the temperature difference between the cold first part and the arriving molten material for producing the pins, ... with the faces of the ... in the first part ...   Original abstract incomplete. <IMAGE>
Patent DE-3906457-A1 (DE)
Title: Pipe-insulating shell with integrated spacer
Inventor: JAEGER FRITZ
IPC: F16L59/12
Filed: 1989-03-01
Abstract: Pipelines with a ventilated weatherproof casing expediently exhibit an insulation which consists of a mineral-fibre insulating material and into which spacers in the form of spacer rings are integrated. The integration of the spacer rings and/or of the parts jutting out beyond the surface of the insulating-material shells takes place in one operation by pressing in corresponding forms (moulds). The spacer rings then serve as a bearing surface for the weatherproof casing, possibilities for cross-ventilation between individual chambers arising due to corresponding notching or a corresponding tapered configuration. <IMAGE>
Patent DE-3906809-A1 (DE)
Title: Desk
Inventor: NAGEL ERWIN DIPL ING
IPC: A47B17/03
Filed: 1989-03-03
Abstract: Published without abstract.
Patent DE-3908253-A1 (DE)
Title: Towel dispenser
IPC: A47K10/28
Filed: 1989-03-14
Abstract: Two towel apparatuses with automatic mechanical or electrical end draw-in means, by which the end of the used towel is drawn in, are coupled to one another in such a way that in each case only one device is freed for use, while the other is blocked until the towel supply in the first device is used up. In the case of a mechanical version, the draw-in operation triggers the switching operation by rotation of a spring wheel (30) which moves on a switching wheel (60) by an eighth of a revolution via a slide (55) and thus releases the blocking, in existence until that moment, of a ratchet wheel (50) by a pawl (51) in the neighbouring apparatus (12). <IMAGE>
Patent DE-3920347-A1 (DE)
Title: Process for reforming heavy oils containing asphaltenes
Inventor: LE PAGE JEAN-FRANCOIS
IPC: C10G67/04
Filed: 1989-06-21
Abstract: The invention relates to a process for treating a heavy oil from crude oil, which contains asphaltenes, in order to produce a synthetic crude oil. According to the invention, the charge (previously subjected, if desired, to a desalination (1) and topping or tailing (2)) is divided into at least one first part F1 and a second part F2; the second part is subjected to a hydropyrolysis (viscoreduction) (at 10), followed by deasphalting (at 15), and the first part is mixed with the deasphalted oil obtained after the hydropyrolysis and deasphalting of the second part. Applications: transport of heavy oils and production of bitumen. <IMAGE>
Patent DE-3929407-A1 (DE)
Title: Efficient braking control for variable speed electric motor - uses electronic frequency changer for control of speed and regenerative braking torque using smaller ballast resistor
Inventor: LUST KARL-HEINZ
IPC: H02P3/12
Filed: 1989-09-05
Abstract: The electric motor speed control is supplied with rectified DC from the power network (1) and a rotating field is generated in known fashion by a combination of electrically timed switches (7). A regenerative braking circuit comprising switch (6) and ballast resistor (5) is connected in parallel with the DC output of the sources and provides the necessary heat sink for energy dissipation during braking. Generation during braking is arranged to produce a higher frequency component in the motor windings by the electronic switching unit (7) and losses in the motor are thereby increased with corresponding reduction in the ballast (5) rating requirement for effective retardation. ADVANTAGE - Minimises dimensioning of ballast resistor and its switch up to limits imposed by thermal capacity of motor windings.
Patent DE-3932906-A1 (DE)
Title: Collecting, and transporting contaminated soil - erects enclosed, slidable hall over contaminated site, transportable in any direction
Inventor: SELL SIEGFRIED
IPC: E04B1/32
Filed: 1989-10-03
Abstract: The collecting and transporting away contaminated soil, digs up the soil by an excavator (17) and set on a conveyor (15) which transports it to containers (13). The latter are transported by a second conveyor (20) to a lorry (14) for transport to a decontaminating plant. THe decontaminated material is returned by a lorry (8) and conveyor (7) to refill the trench formed by the excavation. The site is covered by a slidable two-part hall (1, 2). A suction fan maintains a sub-atmos. pressure inside the hall to prevent the dust and fume escape. USE/ADVANTAGE - For industrial sites, petrol pumps etc. with efficienct decontamination.
Patent DE-3935629-A1 (DE)
Title: Seal for vertically opening window - has pressure flange on window to increase seal effect with window closed
Inventor: GRABNER JOERG
IPC: B60J10/75
Filed: 1989-10-26
Abstract: The window (5) slides vertically through a slot opening (4) in the vehicle body, e.g. door, and is supported on shaped brackets (6) on the underside.  A flange of the bracket is angled to exert a lateral pressure onto the  underside of a shaped sealing strip (10) and press it against the inside of the window when the window is raised to the closed position. The sealing strip has a hinged mounting via an integral spring support (8).  The seal can be on a height adjustable mounting for accurate sealing adjustment. ADVANTAGE - Good sealing pressure without increasing seal drag when window is partially open.
Patent DE-4003278-A1 (DE)
Title: Cable duct with mouldings for electrical equipment adaptor - with hook fixture which enables inserted equipment to be held clear of floor duct, but removed when required
Inventor: KLEINKORRES UWE
IPC: H02G3/04
Filed: 1990-02-03
Abstract: On the floor of the duct (10) mushroom-shaped mouldings (24) are provided for the introduction of an adaptor (27). This has similar mouldings (33) on its upper surface (28), to which the electrical equipment (37) can be fitted. The sidewalls (30, 31) of the adaptor (27) end in hooks (32) for engagement under the heads (26) of the mouldings (24). One hook has an additional flange (36) into which a screwdriver blade can be inserted for leverage so that the adaptor (27) is freed from the mushroom head (26). ADVANTAGE - Conventional equipment can be fitted to more highly rated cable ducts without need for special appts.
Patent DE-4004412-A1 (DE)
Title: DC to DC voltage converter
Inventor: SAITOU AKIRA
IPC: H02M3/335
Filed: 1990-02-13
Abstract: The d.c. to d.c. voltage converter has a transformer (2) with a primary winding (2a), a secondary winding (26) and a reset winding (2C). The d.c. source (1) is coupled to the primary via a switching element controlled by a circuit (11). The secondary circuit has a inductance (5), rectifying diodes (6,7), smoothing inductance (8) and capacitor (9) and the connected load.$ The switching element (3) has a switching action with rise (ton) and fall (toff) times that are related to the system parameters by L greater than E. ton/ID and LM greater than 4 toff to power 2/TT to power 2 Ll. By suitable selection of values the switching speed can be increased and loss reduced.$
Patent DE-4005076-A1 (DE)
Title: Overvoltage protection for data processing appts. - has common board with overvoltage protection members, and terminal for supply and data sides
Inventor: HASSE PETER DR ING
IPC: H05K1/02
Filed: 1990-02-17
Abstract: The oven voltage protection is coupled both to a supply and data network, with electric coupling between the network for over-voltage derivation, completed between the networks. The protection is formed as a unitary appts with respective terminals. It has a common support board (1) for the avervoltage protection (5,13) and for both network terminals. A common earth connector (7) of the board serves as the electric coupler, binding the PE conductor of the supply network to the earth line of the data network. Pref the board earth condition of the board is a conductor, or metal foil, typically of copper. ADVANTAGE - Simple and compact electric coupling.
Patent DE-4015031-A1 (DE)
Inventor: GODDERIDGE VOLKER
IPC: B22C5/08
Filed: 1990-05-10
Abstract: A process for thermically recovering old sand obtained in casting plants and for treating dust containing combustible organic components and incombustible inorganic components is disclosed. Dust obtained by mechanical preparation of the old sand is separated from the sand. The sand is used to form a fluid bed in a fluid-bed kiln having a post-combustion space and an outlet for releasing combustion gases. Dust containing combustible organic components and incombustible inorganic components is introduced into the fluid bed, the combustion of the organic components being used to maintain reaction temperature in the fluid bed. The heat of the fluid bed and the post-combustion space deactivates inorganic components of the dust, which are transported by released combustion gases to effectively separate the inorganic components of the dust from the thermically recovered old sand. These deactivated inorganic components of the dust can be separated from the released combustion gases for easy disposal.
Patent DE-4020885-A1 (DE)
Title: Setting pulse voltage level for heating resistance of ink jet printer - comparing measured resistance with stored value in electronic unit
Inventor: SCHULLERUS WOLFGANG DIPL ING
IPC: B41J2/05
Filed: 1990-06-29
Abstract: An ink jet print head has a series of heating resistors (H1-H4) coupled to contacts (K1-K4) and operated in a pulsed mode to generate ink droplets from the nozzles. Coupled to the elements, a reference resistor (RZ) has a switch in parallel (LS). The value of the resistor is measured in a test cycle and compared with a stored value. The difference is used to control the pulse voltage and provide an optimum value.
Patent DE-4038640-A1 (DE)
Title: Combustion processes monitoring system - uses relationship between soot particle density and ion concn. in exhaust gases to control air-fuel ratio
Inventor: BURTSCHER HEINZ KURT
IPC: F23N5/00
Filed: 1990-12-04
Abstract: Exhaust gas ions are highly active and attach themselves readily to less active exhaust particles such as soot. Efficient combustion generates very few soot particles to which ions can attach themselves. A suitably polarised measuring probe (11) is inserted into the exhaust pipe to monitor the concentration of exhaust gas ions. Free ions are attracted to the monitor probe causing a current to flow. The current flow output, which is processed by the system to indicate the density of exhaust gas soot particles, can be used in an automatic system to regulate the air to fuel ratio in the combustion process. ADVANTAGE - Relatively cheap and simple to mfr. Not susceptible to external interference.
Patent DE-4039786-A1 (DE)
Title: Piston compressor with reduced cylinder dead space - has valve plate with recessed valve seat and location for plate valve spring
Inventor: NISSEN HARRY STENTOFT
IPC: F04B39/10
Filed: 1990-12-13
Abstract: A piston-cylinder compressor with reduced dead space, particularly for use as a hermetically encapsulated refrigerator, has a suction valve whose valve seat (18) sits against a valve plate (9) covering the cylinder bore. The seal achieved via a plate spring (19) between valve plate and cylinder block. A recess (24) exists in the valve plate for the spring and at one end for the valve seat. The other end of the recess (29) matches the shape of the spring, ensuring surcure location. ADVANTAGE - Simplified manufacture and assembly.
Patent DE-4108879-A1 (DE)
Title: Double paint application roller to fence members - has U=shaped bracket, with shanks extending from middle section for rollers at spacing exceeded painted member thickness
Inventor: KOHLMETZ WOLFGANG
IPC: B05C17/02
Filed: 1991-03-19
Abstract: The double roller is for double-side application of paint to elongated parts. The rollers are located on the angled end shanks of a bracket, which has a handle at its middle section (2). The bracket (1) is U-shaped, and the shanks, extending from the middle section for the two rollers (7, 7') are at a distance (3), larger than the thickness of the parts (4) to be painted, and at least equal to the width (9) of the handle (10). USE/ADVANTAGE - For fence parts etc., with a facility to use with any types of paint buckets, smooth roller motion, simple and sturdy design.
Patent DE-4114169-A1 (DE)
Title: Work feed for machine to deburr ends of long workpieces - has workpieces held captive between meshing fingers of main conveyor and overhead auxiliary conveyor
Inventor: ARTHUR MAHLKE MASCHINENBAU INH
IPC: B23Q7/00
Filed: 1991-04-30
Abstract: The machine has an endless conveyor (11) with uniformly spaced upright fingers (15) which carry long workpieces (30) e.g. circular or rectangular section bar, with their ends projecting outside the conveyor track and traversing past deburring brushes. Positioned above a section (B) of the track is an auxiliary conveyor (21) moving at the same speed and with upright fingers (24) at the same pitch as the fingers of the main conveyor. On the inclined approach section (4) of the main conveyor, workpieces can easily be dropped into the spaces between the fingers (15). On the following section (B) the worpieces are held captive between the meshing finger pairs of the two conveyors as they are traversed past the deburring brushes. ADVANTAGE - Workpieces can be reliably fed at high feed rates through the machine.
Patent DE-4124353-A1 (DE)
Inventor: BISCHOFF BERND
IPC: E03C1/06
Filed: 1991-07-23
Abstract: In a wall slidebar for a shower or the like, the wall slidebar being accommodated at the end areas in one blind hole each by bracket-like holders which can be fastened to the building wall with screws, provision is made for at least one radial bore (11) to be provided at each end area of the wall slidebar (1) in order to improve the same, which radial bore (11) is in alignment with the bore of the holder (2) for the wall fastening in the extended position so that the holder (2) can be fastened together with the wall slidebar (1) to the building wall (5) in each case with one screw (21). <IMAGE>