baber/WOPTO huggingface dataset:
Patent DE-3706928-A1 (DE)
Title: Method for influencing predetermined frequency channels within a frequency range and graphic equaliser for carrying out the method
Inventor: HEGELER WILHELM
IPC: H03H11/04
Filed: 1987-03-04
Abstract: When adjusting the frequency channels of a graphic equaliser by changing the transmission properties of the associated filters, the properties of the non-changed frequency channels can also be influenced so that overall a different frequency response than the frequency response desired by the user by way of the adjustment is produced. In order to avoid this error, a microprocessor is used which is capable of calculating by approximation the actual effect, that is to say the influencing of the frequency channel on one another, of an adjustment and which subsequently calculates and brings about a new adjustment which is dimensioned such that the errors are largely compensated, and that the frequency response which is obtained corresponds to the adjustment performed by a user.
Patent DE-3710429-A1 (DE)
Title: Sun visor for motor vehicles
Inventor: HAGEN HANS DR
IPC: B60J3/02
Filed: 1987-03-28
Abstract: The sun visor comprises a sun-visor body (1) which is connected in an articulated manner in its central region to a holding rod (2). The holding rod (2) can be pivoted relative to the vehicle body around an approximately perpendicular axis in the hinge (3). In the swung-down condition of the sun-visor body (1), the sun-visor body (1) can be rotated relative to the holding rod (2) around a likewise approximately perpendicular rotational axis (4). The sun-visor body (1) can be moved from a position behind the windscreen into a position within the side window without one of its edges coming too close to the upper body or the head of the passenger. <IMAGE>
Patent DE-3711181-A1 (DE)
Title: Circular brush, in particular gutter-cleaning brush for road-sweeping machines
Inventor: REISLAENDER KONRAD
IPC: A46B3/14
Filed: 1987-04-02
Abstract: In a circular brush, in particular a gutter-cleaning brush, for attachment to a rotating drive head (13) of a road-sweeping machine, the brush body is attached indirectly to the circular brush due to the fact that the bristle tufts (14) are attached to segment plates (3) which, in turn, are screwed to the edge (9) of the circular element (1). The mounting of the brush body on the circular element (1) and the replacement of the brush body are thus simplified considerably. <IMAGE>
Patent DE-3711785-A1 (DE)
Inventor: ZIEGLER GERD
IPC: B60C5/20
Filed: 1987-04-08
Abstract: The standard of safety of vehicle wheels provided with compressed air pneumatic tyres is greatly improved if a second chamber is disposed within the chamber, designated the outer chamber (14), formed by the tyre itself. Said inner chamber, separate from the outer chamber, is filled with compressed air and adopts the function of the outer chamber in case of a reduction in pressure in said outer chamber. The inner chamber (15) is provided with a flexible casing (16) or tube and, according to the specific formation of its valves (4), is filled first with compressed air, until a pressure level of between 20 and 80 % below the intended tyre pressure is attained. Only then is the outer chamber filled until the preset tyre pressure is reached. When the outer chamber is filled, the inner chamber is compressed until the same pressure prevails in both chambers. The driving qualities of the vehicle are not affected, whilst the pneumatic safety tyres considerably increase safety during driving.
Patent DE-3721615-A1 (DE)
Title: Method for producing a numerically programmable clamping force and apparatus for carrying it out, in particular for the tailstock of machine tools
Inventor: MARKOVICS GYOERGY
IPC: B23B23/00
Filed: 1987-06-30
Abstract: The invention relates to a method for producing a numerically programmable clamping force and an apparatus for carrying it out, in particular for the tailstock of machine tools which is connected to a mechanical clamping unit. The method according to the invention consists essentially in that a movement proportional to the clamping force is produced in the clamping unit, whereupon digital voltage pulses proportional to this movement are produced, which are stored in the form of binary codes in a counter, after which they are compared via a coincidence circuit with voltage levels preset in the form of binary codes, a shut-off signal being produced at the coincidence point of the preset and the measured electric voltage signals and, by means of this signal, the further operation of the mechanical clamping unit being shut off and its position fixed. The apparatus suitable for carrying out the method has a mechanical clamping unit, known per se, which contains an electric motor provided with a parking brake, a gearing provided with a transmission, a ribbed sleeve rotatably mounted in the gearing, and also a threaded spindle which is axially displaceable against the force of the springs mounted in the ribbed sleeve and connects the ribbed sleeve to the sleeve of the tailstock, according to the invention recesses (11) being formed in the outer shell of the ribbed sleeve (6) and said row of recesses (11) ... Original abstract incomplete. <IMAGE>
Patent DE-3724795-A1 (DE)
Title: D/A and A/D converter having an approximately ideal, logarithmic characteristic
Inventor: WANISCH THOMAS
IPC: H03M1/00
Filed: 1987-07-27
Abstract: In order to produce an approximately ideal, logarithmic characteristic for a D/A-A/D converter, the output of the D/A converter is fed back to the reference input via a resistor network and driver. The characteristic is in this case defined only by the ratio of the resistors to one another, as a result of which the circuit is very well suited for integration in a microchip.
Patent DE-3732262-A1 (DE)
Title: Plant, known as high-security large waste tip and large natural energy plant, for dressing and ultimate disposal of refuse materials including abandoned waste dumps, for receiving wind energy plants and for long-term hothouse use
Inventor: MEYER GERHARD
IPC: F03D9/00
Filed: 1987-09-25
Abstract: Plant, known as high-security large waste tip and large natural energy plant, for dressing and ultimate disposal of refuse materials including abandoned waste dumps, for receiving wind energy plants according to P 3609936.8-15 and, in particular, according to P 3715008.1-15 and for long-term hothouse use. As a final point of a nationwide supply and disposal system in which, beginning with individual catchment areas of approximately 15,000 inhabitants, refuse is separately collected, separately driven away and optimally branched, together with all other refuse, in sorting, processing and dispatch buildings in accordance with a 12-sort system, such a plant is presented here as No. 1 Luneplate-Nordniedersachsen, as the first of 10 such plants nationwide, with proportionate own-processing, with proportionate dispatch of reusable containers, with proportionate dispatch of raw materials and with proportionate dispatch, to the nearest high-security large waste tip, of refuse of all types which can no longer be used and with use of recycling freight depots which are to be installed in catchment areas of approximately 150,000 inhabitants for the purpose of material transport by rail which is to be the primary form of material transport. In this arrangement, the areas used are optimally utilised in the long term by means of wind energy installations which are built at the same time and proportionally cover the nationwide demand for current and by means of later hothouse installations which proportionately cover the nationwide demand for raw foods.
Patent DE-3732657-A1 (DE)
Title: Method for increasing grip on icy surfaces
Inventor: TAETZNER WOLFGANG DR
IPC: C09K3/18
Filed: 1987-09-28
Abstract: Method for increasing grip on icy surfaces using a granular water-insoluble spreading agent, in particular sand, in which the spreading agent is moistened, brought to an elevated temperature and applied to the icy surface in this form. Additives which lower the freezing point can be mixed with the spreading agent.
Patent DE-3740125-A1 (DE)
Title: Azole derivatives
Inventor: EGGER HELMUT DR
IPC: C07D233/61
Filed: 1987-11-26
Abstract: Aromatase-inhibiting azole derivatives of the formula I <IMAGE>  in which   R1 and R2 are identical or different and in each case stand for an unsubstituted or mono-or polysubstitued aryl or heteroaryl radical, R3 stands for an unsubstituted or mono- or polysubstituted alkyl, cycloalkyl, aryl or heteroaryl radical or an unsubstituted or mono- or polysubstituted cycloalkyl, aryl or heteroaryl radical fused to a benzene ring or for an alkoxy group, and   X stands for CH or N, where if R3 stands for methyl and R1 and R2 both stand for a phenyl radical, at least one of these phenyl radicals must be substituted.
Patent DE-3801847-A1 (DE)
IPC: B22D19/00
Filed: 1988-01-22
Abstract: A piston (10) for an internal combustion engine incorporates at least one metal reinforcing member (20 or 30) provided with open pores all over its surface. A squeeze casting-method is employed to cause the molten piston material, which is aluminium or an aluminium alloy, to fill the pores of the metal reinforcing member(s) throughout the thickness thereby improving the strength of the piston. The reinforcing member(s) may be a sintered alloy of chromium, nickel, carbon, copper, silicon, manganese and iron in specified proportions.   <IMAGE>
Patent DE-3802187-A1 (DE)
Inventor: HOCHDANINGER FRANZ
IPC: A62C27/00
Filed: 1988-01-26
Abstract: In a service vehicle (1), in particular a fire service vehicle, an equipment cab (7) arranged on a chassis frame (2) is provided with equipment containers 9, 10, 11, 25, Fig 2, having modules 23, 24 for appliances and/or quenching agents 17, 18, 21. The modules (23, 24) are displaceable with respect to the equipment containers and each module is closed off by means of a door system (12) and is coupled to a bearing system (27) and is pivotable around a spindle (28) extending perpendicularly to a wheel support plane (4). The equipment module (23, 24) is suitably provided with no more than a shelf base (26) or a carrying frame (73), Fig 8. The modules may be arranged at different levels to pivot about spindles (46, 47, 48), Fig 6, which are offset transversely and longitudinally of the vehicle and means, eg parallel pivoting levers (57), (58), Fig 6, may be provided to enable an equipment container (45) to be lowered towards the ground. <IMAGE>
Patent DE-3806635-A1 (DE)
Title: Method for growing a single crystal
Inventor: SCHMITTBERGER HORST
IPC: C30B7/00
Filed: 1988-03-02
Abstract: A method is described for growing a single crystal by evaporation of a solvent from a droplet which is held without contact in a stationary sound field (sonic field). In order to initiate crystallisation of the single crystal, it is seeded with a foreign nucleus. This ensures that only one single crystal is grown from the droplet.
Patent DE-3809071-A1 (DE)
Inventor: GIMPERA JOSE
IPC: B22D41/08
Filed: 1988-03-18
Abstract: A gate valve for an outlet, in particular an extended outlet, of a vessel containing molten metal comprises an immovable, refractory gate-valve part (3) with inflow and outflow openings and a refractory gate-valve part (13) which can be moved sealingly relative to the immovable gate-valve part and has a connecting channel for connecting the inflow and outflow openings in the open position of the gate valve. In order to avoid penetration openings for the connecting channel, the movable gate-valve part (13) has as a connecting channel at least one recess (15) extending on the circumferential surface (14) of the movable gate-valve part (13). 
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Patent DE-3815400-A1 (DE)
Inventor: FUJITA MASANORI
IPC: G02F1/13
Filed: 1988-05-05
Abstract: A method of during an electro-optical apparatus having a ferro-electric liquid crystal material disposed between two sets of electrodes comprises a first step of applying a first pulse group P1 or P2 to set an electro-optic element firstly in a particular one of its saturated ON or OFF states and then in its other state, a second step of applying a second pulse group P3 or P4 to either set the element in the particular one state or to hold it in its other state and a third step of applying A.C. pulses P5, P6 to hold the element in the desired state and the pulse group P3, P4 includes an equal number of pulses of opposite polarity. The first step whose duration may be lengthened initialises the element in a particular state and reduces the re-writing time of a frame. Gradation or tone variation may be achieved by controlling the amplitude or pulse width of the signals applied to one set of electrodes. Re-writing may be effected in blocks of scanning lines. The apparatus may be used in a display device or a printer. <IMAGE>
Patent DE-3820371-A1 (DE)
Title: Fine lead insert for compass legs
Inventor: PARTES STEFAN
IPC: B43L9/24
Filed: 1988-06-15
Abstract: The invention relates to a fine lead insert for compass legs which has a housing to receive the lead mechanism, which housing is provided with a laterally projecting attachment on which an insertion pin is located. The object of the invention is that such a fine lead insert should also be made suitable for the drawing of small circles with a line of thickness that remains uniform, where use must not be impeded by guide bars, fine adjustment spindles or other parts of the compass. This is achieved in that the attachment has a drill hole in which the insertion pin, forming an independent component, is mounted so as to be rotatable about its longitudinal axis; in addition, the drilled hole can also be pivoted in its own plane and in the plane accommodating the longitudinal axis of the housing. <IMAGE>
Patent DE-3820714-A1 (DE)
Title: Crucible for molten silicon
Inventor: GRUBER UDO DIPL ING
IPC: F27B14/10
Filed: 1988-06-18
Abstract: For melting and vaporising silicon use is made of crucibles of carbon and graphite, whose operating life is relatively short because of the formation of silicon carbide and the volume increase associated therewith. The new crucible is to have a longer operating life. The crucible comprises carbon-fibre-reinforced carbon (CC composite) having a bulk density of from 1.30 to 1.70 g/cm<3>. Melting of silicon, siliciding.
Patent DE-3832375-A1 (DE)
Title: Method and arrangement for detecting objects passing a call-up signal barrier in mine operations
Inventor: ORMANNS SIEGFRIED ING GRAD
IPC: G07C9/00
Filed: 1988-09-23
Abstract: In mine operations, persons are detected when they pass a call-up signal barrier (3a...3f) in that a call-up signal is transmitted into the signal barrier area and each response signal is processed by a transceiver carried by the person. The mine building is divided into separate zones (I...IV) by a number of call-up signal barriers (3a...3f) distributed in the room. At each transition from one zone to another zone, the number of persons and the direction in which they have passed are detected. The data with respect to number of persons and direction of their passage, detected at all signal barriers of the zones (I...IV), are centrally stored in a processor (30) and the current number and distribution of the persons are determined from these data. In addition to the detection of the distribution of persons, switching processes can also be triggered in the individual zones in dependence on population, particularly a light or operating plant in a zone (IV) can be switched on or off when the first person enters the zone or the last person leaves the zone (IV). <IMAGE>
Patent DE-3834511-A1 (DE)
Title: Propeller fan
Inventor: KASTENS KARL DIPL ING
IPC: F02C7/36
Filed: 1988-10-11
Abstract: According to Figure 3 of the attached drawing set, the development of the propeller fan is proposed as is described in the Main Application P 3734624.5-22. In this case, the main feature is the reduction in the noise emission. The measures required for this purpose at the same time allow improvements in the thrust to power ratio and the behaviour at altitude. For this purpose, the rotors I and II (which contrarotate and are connected to the rows of blades) as well as both the front and rear power turbines Tf and Th are provided with selectable, different rotation speeds and/or power consumptions in that, on the gas exhaust side, the turbine disc 1 of the rotor I is used as an epicyclic gear support on which the planet wheels 6 are fitted on the right, which are connected in a rotationally fixed manner, via the planet shafts 5, to the planet wheels 7 on the left hand side which, for their part, engage with the toothed rim 12 on the turbine disc 7 of the rotor II. As a result of the supporting anchor 9, which is firmly connected to the fan stator 27 and operates as a sun wheel and on whose toothed rim 10 the described planet system rolls, the two rotors rotate in opposite directions. The differences between the rotation speeds of the rotors are in this case governed by the different diameters DL and DR. These measures allow both rotors to be connected to a single row of blades, and the use of otherwise contrarotating blades by braking as a guide apparatus, as a result of which, for any flight attitude, the ... Original abstract incomplete. <IMAGE>
Patent DE-3835505-A1 (DE)
Title: Seal for reciprocating pistons, plungers, rods, cylinders and rod bearings
Inventor: AMMANN SIEGFRIED ING GRAD
IPC: F16J15/3208
Filed: 1988-10-19
Abstract: The invention relates to a seal for reciprocating pistons, plungers, rods, cylinders and rod bearings, which each have a groove for receiving this seal, which groove comprises a friction ring made of plastic, in particular teflon, and a buffer ring, which bears against the bottom of the groove and is in particular made of silicone rubber, the seal being used in particular for a metering piston in a filling device for liquid or viscous foodstuffs. In this seal, the outline of the buffer ring (11') corresponds to the outline of the groove (2) both in its region which bears against the bottom (10) of the groove and in its region which is adjacent to the side walls (12, 13) of the groove (2), and even in the relaxed position bears against the groove (2). In its region which is adjacent to the friction ring (5) and in that region which faces the latter, the outline of the buffer ring (11') has recesses (15, 16), which each run up to the groove walls (12, 13) and then subsequently run in the circumferential direction, and are configured in such a manner that in the relaxed position the buffer ring (11') and the friction ring (5) only come into contact in the region of a radial centre plane and on both sides thereof, whereas in the tensioned position (Fig. 4) in which, in each case depending on the installation situation, the friction ring (5) is radially contracted or expanded due to elastic deformation of the buffer ring (11'), the two rings (5, 11') bear against each other essentially over the full width of the friction ring (5). This makes it possible for the groove base to be well sealed whilst, at the same time, the penetration and settling of dirt is prevented. <IMAGE>
Patent DE-3835875-A1 (DE)
Inventor: REHN HERBERT
IPC: G03C5/18
Filed: 1988-10-21
Abstract: To produce a colour proof a multi-layer diazotype material is exposed through black/white colour separation film originals in the three spectral regions with filtered light specifically adjusted to the three light-sensitive layers and is developed in a manner suitable for diazotype materials. The multi-layer diazotype material comprises three light-sensitive layers, each layer containing one or more diazonium salts and colour couplers. Two of the light-sensitive layers have absorption maxima close to each other but not closer than 20 nm, e.g. UV senisitive (range 350-400n.m) and blue sensitive (range 390-450 n.m), and the third light-sensitive layer has its absorption maximum at least 60 nm from the above absorption maxima, e.g. green sensitive or above 450 n.m.
Patent DE-3836457-A1 (DE)
Title: Torque transmission unit
Inventor: HONZEK ROBERT
IPC: B60K17/35
Filed: 1988-10-26
Abstract: A torque transmission unit is described in which an intermediate shaft is supported in a housing by means of a first set of bearings, on which shaft at an interval from the first set of bearings a second set of bearings is arranged for the rotatable support of a sleeve connectable to a universally jointed drive shaft, which sleeve simultaneously serves as thrust bearing of a multi-plate friction clutch accommodated between the two sets of bearings. Known torque transmission units of this type must be dismantled for wear adjustment of the plates. This disadvantage is removed if the second set of bearings (11), as proposed, is fixed on the intermediate shaft (2) so that it is displaceable against an elastic element (diaphragm spring (13)). This makes it possible to compensate for the wear, in that the sleeve (14) is correspondingly axially displaced by appropriate tightening of the lock nut (10) securing the second set of bearings. <IMAGE>
Patent DE-3836997-A1 (DE)
Title: Novel desk assembly kit
IPC: A47B87/00
Filed: 1988-10-31
Abstract: The invention relates to a combination desk assembly kit, the elements of which are coordinated with one another in their dimensional division by means of preset dimensions A and B in such a way that they can be arranged in a row singly or multiply without gaps.
Patent DE-3838669-A1 (DE)
Title: Pressure-resistant housing for accommodating a power switch (circuit breaker)
Inventor: LODWIG KLAUS
IPC: H01H9/04
Filed: 1988-11-15
Abstract: Pressure-resistant housings which are used to accommodate power switches in a flameproof manner are within the prior art. They are equipped with a closure cover, which is guided displaceably in grooves, and a switching lever which allows the closure cover to be displaced only when the power switch is open. The new cover interlock is intended to be of simpler construction and to simplify access to the housing interior. It is proposed that the switching lever (18) be arranged on the closure cover (9) and that its switching shaft (25, 26), which can be displaced axially and engages through a hole (20) in the closure cover (9), be constructed such that it can be connected in a positively locking manner to the power switch (3). The switching shaft (25, 26) can in this case be locked in two positions which are rotated with respect to its axis, and that switching shaft end (33) which can be connected to the power switch (3) is located within the hole (20) in the closure cover (9) when the power switch (3) is open, and releases said closure cover (9). The displacement movement of the closure cover (9) is designed in such a manner that, in its open position, it covers the opening (35) in the power switch (3) which accommodates the switching shaft end (33). <IMAGE>
Patent DE-3900770-A1 (DE)
Inventor: HOPPE JUERGEN PROF DR
IPC: C12N15/19
Filed: 1989-01-12
Abstract: Process for producing PDGF-A as well as biologically active PDGF-AA and PDGF-AB.
Patent DE-3907869-A1 (DE)
Inventor: LINDEN ALFRED
IPC: A23G4/08
Filed: 1989-03-10
Abstract: Use of a plastic which can be dissolved in a basic aqueous solution as the chewing material of a chewing-gum or as a constituent thereof.
Patent DE-3913789-A1 (DE)
Title: Roller switch with centre position setting - has spring that acts in either direction from central position
Inventor: HINTERBERGER LEOPOLD
IPC: H01H19/48
Filed: 1989-04-26
Abstract: The rocker switch assembly combined with potentiometer functions has a fixed plate (1) with a contact ring (2) that engages with a sliding contact element (3).  This is secured to a carrier (4) that is automatically centred by the action of a spring (5).  The spring is in the form of a loop with ends that are positioned on either side of a centre stop (12). Movement of the sliding carrier on either side away from the centre causes the spring to be loaded and provide a return force. USE/ADVANTAGE - For digitally programmable hearing aid speaker. Provides automatic return to off position.