baber/WOPTO huggingface dataset:
Patent DE-3910724-A1 (DE)
Title: Arrangement for gain control in a vehicle
Inventor: BOSE AMAR G
IPC: H03G3/32
Filed: 1989-04-03
Abstract: The invention relates to an arrangement for gain control in a vehicle with a driving engine and a sound amplifier system which contains a signal source and which has a manually operable means for adjusting the sound level of a useful signal in the vehicle, a power amplifier and an electroacoustic transducer. In order to achieve an increase in the gain as response to the running engine of the vehicle and a reduction in this gain when the engine is not running, the arrangement has a signal source which supplies a signal which is representative of the switched-on and switched-off state of the engine, a means for achieving a variable gain which is connected to the abovementioned volume control and which responds to an electrical sound input signal which must be amplified by the system in such a manner that a signal with controlled amplitude is available, the means for achieving a variable gain responding to the signal representative of the state of the engine and, as a result, controlling the gain of the system in such a manner that it is increased or reduced, respectively, in dependence on whether the engine is switched on or off. <IMAGE>
Patent DE-3911356-A1 (DE)
Title: Holding device for a display unit
Inventor: TISCHER KURT MANFRED
IPC: C03B35/04
Filed: 1989-04-07
Abstract: A device for holding the front screen and the trough of a flat display unit during a manufacturing process with increased temperature has an inclining resting surface which is formed by the tips of elevations (13). These tips serve to rest the front screen, with its front side pointing downwards, on the holding device. Due to the fact that the holding device is designed in such a manner that the display unit, with the front screen pointing downwards, can be held in a supported manner, it is ensured that the front screen is not deformed during the manufacturing process with increased temperature. Due to the fact that the front screen does not rest on a flat holding surface but on individual elevations, accumulations of heat, which represent an increased risk of breakage for a front screen, are avoided. <IMAGE>
Patent DE-3913530-A1 (DE)
Title: Valve actuating device
Inventor: SARIDAKIS NIKOLAUS DIPL PHYS
IPC: F01L1/08
Filed: 1989-04-25
Abstract: A device is described for actuating the inlet and exhaust valves of a reciprocating piston internal combustion engine, which has a cam device (1) held on a camshaft (3) driven angle-synchronously by a crankshaft of the internal combustion engine, which device has a cam (4, 5) with an opening flank (6) but no closing flank assigned to each inlet valve (15). In addition, a transmission device (2) interacting with the cam (4, 5) is provided, which acts on the valve (15) against a valve spring (18) acting in the closing direction. In order to prevent damage of the cam device or transmission device in the event of a crankshaft and hence camshaft rotation in the wrong direction caused, for example, by misfiring of the internal combustion engine, it is proposed that each cam (4, 5) be held on the camshaft (3) in such a way that any transmission of power to the transmission device (2) is possible only in a predetermined direction of rotation of the internal combustion engine and in a predetermined phase position between the crankshaft and the cam (Fig.1). <IMAGE>
Patent DE-3923689-A1 (DE)
Inventor: LEONARD JOACHIM DR PHIL
IPC: A61K31/425
Filed: 1989-07-18
Abstract: The known compounds of formula (I), where R1 and R2 have the meanings given in the description, can be used in the form of conventional preparations for treating diseases of the eye, in particular to reduce the intraocular pressure and to increase the visual contrast sensitivity.
Patent DE-3925677-A1 (DE)
Title: Ramp for bridge - consists of access and exit multilevel circular ramp at entrance to bridge
Inventor: BROSCH FRIEDRICH DIPL ING
IPC: E01D1/00
Filed: 1989-08-03
Abstract: A ramp for a bridge over a river or for a flyover consists of two multi level circular ramps (7), one on either side of the bridge as its end (B), one for access to the bridge and the other for exit. The ramps serve a road parallel to the river, or at right angles to the bridge. USE/ADVANTAGE - Vehicles entering or leaving do not cause congestion along the extension to the bridge carriageway.
Patent DE-3926380-A1 (DE)
Title: Liq. circulation system for lithotriptor - has mechanism for automatically filling system and keeping it topped up
Inventor: ESTERER HELMUT
IPC: A61B17/22
Filed: 1989-08-10
Abstract: The liquid circulation system is installed in a device for shock wave treatment, esp. a lithotriptor. The circuit consists of a shock wave source, a water cushion, a main circulation system for heating the water, a mechanism for filling and emptying the water cushion and a device to regulate the water pressure in the cushion. The liquid circulation system forms a closed circuit and a de-gassing circuit is arranged parallel to this liquid circulation system. The system is provided with a central de-gassing vessel (EB) for heating the liquid. An air separator (LA) mounted on the de-gassing vessel removes the gas bubbles from the de-gassing circuit. Means are provided for the automatic initial filling of liquid circulation system and for keeping it topped up. USE - Breaking up stones in a patient's kidneys.
Patent DE-3926429-A1 (DE)
Title: Thermally insulated tubular component prodn. - by internally flame-spray coating ceramic shell and casting around metal outer casing
Inventor: KLOSE PETER DR ING
IPC: C23C4/00
Filed: 1989-08-10
Abstract: Thermally insulated tubular component is produced by pressing an insulation. layer (14), spraying the internal surface with a high thermal resistant coating (12) and finally encasing inside an outer casing (16). The pressed insultation layer (14) is made up of shells (22,24) separable along the tube axis and fitted with tons and groove type joints (26,28). The layer (14) is made by pressing together a powder mixture of micro-porous SiO2, ceramic fibres, sliming agent and inorganic wetting agent. The flame sprayed layer is made of a Ni-Cr-Al coating. The halfs of the shell are stuck together before being surrounded by a casing of grey cast iron or Al in a casting mould. ADVANTAGE: The production method is cost effective and the finished product is thermally stable.
Patent DE-3930609-A1 (DE)
Title: Cooker mounting hinge mechanism - has bell-crank lever arms with roller and slide coupled to fixed wall
Inventor: SCHUBERT WOLFGANG ING
IPC: A47B77/12
Filed: 1989-09-13
Abstract: The hinge mechanism is for a mounting accommodating cookers etc. It has a parallellogram linkage with a control cam, against which a spring-loaded roller on a control lever bears. The roller (12) is mounted on one arm of a bell-crank lever (1), along whose other arm a slide (3) travels. The latter is coupled via a thrust rod (16) with compression springs (15) to the fixed housing sidewall (5). ADVANTAGE - Increased roller pressure against cam, and easy adjustment of linkage, particularly in end positions.
Patent DE-3931142-A1 (DE)
Title: Atmos. pollution redn. e.g. of sprayed oil from metal processing - sucks particles into pivoting hood and through filter
Inventor: LAUFENBERG WOLFGANG VON
IPC: B08B15/02
Filed: 1989-09-19
Abstract: Pollutants such as sprayed oil or fat particles, or solid lubricant particles emitted from a machine are trapped by suction forces inside a hood (13) suspended from a horizontally mobile cantilever arm (1) projecting from the top of a vertical stand (26).  The hood is composite, formed of laterally engaging ribbed strips or plates. From the outer end of the cantilever arm, an upwardly sloped support fork carries a tubular conduit (7) by which suction is applied and which after bending through about 90 deg. is coupled to a pollutant extractor system.  In addn. to a blower providing the suction force, this system incldues a preliminary separator, a fine filter e.g. of electrostatic type, and a sound absorber (44) with a final discharge filter.  Extractor system elements are mounted on a lateral support bracket (35) affixed to the vertical stand.  A distributor (41) ensures travelling pollutants are uniformly spread over the entire filter area. USE - Esp. for metal processing plant in casting shops and  foundries where atmos. pollution must be minimised.
Patent DE-3931514-A1 (DE)
Title: Communication control system - has multiple processors connects via channel controller connected to outputs
Inventor: WASHIO KAZUTOSHI
IPC: G06F15/16
Filed: 1989-09-21
Abstract: A number of host computers have CPU's (1) with associated communication control units (2) that connect iwth a common control system (3). The host computer channels connect with a channel adapter (4) operated by a service precessor (6). The adaptor has a number of communication processor modules (5) that provide output onto transmission lines. The channel adaptor has interface stages on the host computerr side and these connect with a selector that connects with output control interface units. Control of the internal cycle of the adapter is provided by a microprocessor based module. ADVANTAGE - Provides high speed communication between host computers and control processors.
Patent DE-3938217-A1 (DE)
Title: Reflector aerial for two different frequency ranges - has exciter with high secondary lobes and narrowing radiation diagram with increased frequency
Inventor: SCHNEEMANN JOERG DR
IPC: H01Q5/55
Filed: 1989-11-17
Abstract: The reflector aerial has at least one reflector and an exciter for operation in two different frequency ranges.  The exciter is designed with high secondary lobes, while its radiation diagram is narrowed with increased frequency such that for the higher frequency range an anti-phase field engagement of the reflector(s) results. Thus an aerial characteristic is provided, whose main lobe is flattened and reduces towards the edge of the radiation zone at a slight incline. Pref. the exciter has a negligible phase fault at least for the lower frequency range. The exciter may have a waveguide wave transit chamber with an elliptical, rectangular, or circular cross section. ADVANTAGE - Improved edge yield in both frequency ranges.
Patent DE-3939498-A1 (DE)
IPC: A24F19/08
Filed: 1989-11-30
Abstract: In an integral ashtray (1) for motor vehicles with a housing (2) securable to the vehicle in which a container (3) in the form of a drawer-like slide is movably fitted and can be moved from an inoperative position in the casing (2), for which a spring is provided by means of which the container (3) is taken to the position of use after a lock has been released, a space-saving structure avoiding the use of expensive guide components is achieved in that the spring takes the form of a spiral strip spring (12), one end of which is wound on a core (11), whereby the core (11) is rotatably secured to the casing (2) or the container (3) and the other end is secured to the container (3) or the casing (2).
Patent DE-3939960-A1 (DE)
Title: Overhead pan electronic balance with corner load correction - has variable spring constant plate springs between load detector and fixed points on housing
Inventor: STADLER EBERHARD
IPC: G01G21/24
Filed: 1989-12-02
Abstract: The overhead pan electronic balance has a housing and a load detector spring-connected to fixed points on a housing via an upper and a lower linkage forming a parallel guide.  At least one plate spring (8,8') of variable effective spring constant is connected between the load detector (2) and the fixed points (7,7') for corner load correction. At least one plate spring can be connected between the load detector and the fixed points for both orthogonal directions of the corner load on the weighing pan.  The plate springs can be sprung lateral protrusions of the load detector. ADVANTAGE - Overhead pan weighing device has simplified corner load correction compared to conventional devices and even enables adjustment of nonlinear corner load errors.
Patent DE-3942343-A1 (DE)
Title: Measuring pressure changes e.g. in ABS ASR braking systems - using relative cheap temp. sensor and software derivation of rate of pressure changes
Inventor: MEISSNER MANFRED DIPL ING
IPC: G01L11/00
Filed: 1989-12-21
Abstract: A method of detecting the variation in the pressure of a medium involves measuring the temp. of the medium and then determining the variation in the pressure from the known and stored relationship between the temp. and the rate of change of pressure. The pressure can then be derived by integrating the rate of change of pressure. USE/ADVANTAGE - Determining braking pressure in motor vehicle ABS and ASR braking systems. Cost of obtaining pressure information is low since the temp. sensor is relatively cheap and the derivation costs lie in the software.
Patent DE-3942976-A1 (DE)
Title: Power supply for pluggable assemblies at telephone exchange - follows current path from vertical rails of frame to transverse rails with grooves for insulated inserts
Inventor: WEIGEL DIETER DIPL ING
IPC: H04M19/08
Filed: 1989-12-23
Abstract: The circuit boards (9) slid into their holders are supplied with power via the transverse rails (6') which are connected with the vertical current busbars (4-6) of the frame in which they are set. On the front of each transverse rail (6') a groove is provided for insertion of an insulated moulding (4', 5') which serves as a voltage supply line. The handgrip (12) has corresp. metallic contacts (13) on its back. ADVANTAGE - Spatial sepn. of signal and power supply lines is combined with benefit of contact points on board holders made available for additional signal lines.
Patent DE-3943370-A1 (DE)
Title: Pneumatic wt. balancer with control block - maintains base pressure dependent on applied wt. as control pressure for automatic wt. control
IPC: B66F3/24
Filed: 1989-12-30
Abstract: A pneumatic wt. balancer allows a defined, load-dependent static pressure to build up in a cylinder chamber on the piston rod side of a wt. loaded, vertically movable pneumatic cylinder on the end of a piston rod before the rod moves. When the piston moves the base pressure, dependent linearly on the wt. on the piston rod, remains constant and is used to control a pressure regulator via a control block. The control pressure is maintained to the regulator. USE/ADVANTAGE - Esp. for use as handling aid; automatically allows for correct wt.
Patent DE-4000931-A1 (DE)
Title: Error correction in inter-frame DPCM video signal transmission - involving direct use of received signal for reconstruction of picture from estimate of simultaneously corrected value
Inventor: ERDEL KARLHEINZ
IPC: H04N19/895
Filed: 1990-01-15
Abstract: A forward error correction DPCM decoder (FEC-DEC) with a propagation time of exactly one picture period set by a delay circuit (V1) is used with two adders (AD,AD2) and a single picture memory (SF). An error detector (FE) operates a switch (SU) whereby the input signal (et) may be added (AD2) as necessary to the corrected estimate (x circumflex sub t) with appropriate delay (V2). This may be introduced by another decoder having a shorter propagation time and correcting single transmission errors. USE/ADVANTAGE - In e.g. videotelephone and teleconferencing systems. Forward error correction is achieved without temporally relevant error propagation or undue delay in transmission.
Patent DE-4001675-A1 (DE)
Title: Gas pressure regulator - has double poppet unit to allow operating range to be varied
Inventor: SPIESSER GILBERT
IPC: G05D16/16
Filed: 1990-01-22
Abstract: A gas pressure regulator has the flow of gas between an inlet (2) and outlet (3) controlled by a double poppet (6,10) arrangement. The smaller poppet is coupled by a valve stem (7) to the diaphragm (8) of a servo actuator. The large poppet is coupled by a spring (11) to the valve stem. The servo actuator responds to the difference between the output pressure and a set value. When operating about a point the small poppet action provides regulation. The large poppet setting is varied to change the operating point.
Patent DE-4003736-A1 (DE)
Title: Microwave oven lighting with truncated conical reflector housing - gives widely scattered distribution of light from filament lamp through transparent screen into irradiated cooking space
Inventor: HOLTDIRK HANS-GERD
IPC: F21S8/02
Filed: 1990-02-08
Abstract: The housing (1) formed on the rear wall (3) of the cooking space (4) has a trapezoidal cross-section with max. dia. less than a quarter of the wavelength of the microwaves, from which it is shielded by a transparent screen (10). A filament lamp (7) is installed in a lampholder (6) at the back (5) of the reflector (11). The distance between any points of the filament (8) is less than a tenth of the wavelength of the microwave radiation. ADVANTAGE - Distribution of light within cooking space is improved with lamp protection from microwaves and prevention of leakage.
Patent DE-4008582-A1 (DE)
Title: Brick with gripper recesses - has each recess formed by semicircular groove between cylindrical inner and outer faces
Inventor: SCHMIDT HERBERT
IPC: E04B2/02
Filed: 1990-03-15
Abstract: The brick has gripper recesses formed in opposite side faces. Each recess consists of a semicircular groove (4), enclosed between inner (5) and outer (6) cylindrical faces, at right angles to the side surface (2). The height of the inner face is less than that of the outer one, and it defines a gripper base (8) of part-cylindrical cross-section. The centres of the cylindrical faces can be spaced. ADVANTAGE - Easy handling even of abutting bricks.
Patent DE-4018474-A1 (DE)
Title: Welded construction vehicle wheel - has rim and hub sections welded in low stress flange region
Inventor: DANTELE JOHANN DIPL ING
IPC: B60B3/04
Filed: 1990-06-07
Abstract: The vehicle wheel is of welded construction. It has a profiled drop centre rim (1) welded to the hub (5) at the wheel flange (4). Several cooling holes (8) are located around the wheel hub circumference between the hub and wheel flange. In the region of the joint (2) on the wheel outer edge, the free end (3) of the drop rim locates against a section (7) of the wheel flange hub. The connecting weld joints (6,9) are in a low stress region. USE/ADVANTAGE - Lower weight with a higher fatigue life, low cost manufacture.
Patent DE-4020377-A1 (DE)
Title: Profile body for shutter - is used in ventilation system and has fillet with crosspiece running along one of its narrow sides
Inventor: HABERER ELK
IPC: E06B9/165
Filed: 1990-06-27
Abstract: The fillet (2) with a crosspiece (3) has a number of circular holes (1), and the profile body (10) has a slot (6) along the other narrow side (5) opposite to the fillet (2) which can engage the fillet and crosspiece of an adjacent profile body. The circular holes (1) are arranged in a regular manner, and at their narrowest through passage point have a dia. between 1 and 2 mm. They are formed conically, with their formation narrowing towards the outer wide side (16) of the profile body. Alternatively, they may widen in that direction. The cone angle is pref. between 20 and 35 deg. USE/ADVANTAGE - As a shutter ventilation system profile body which has an optimal insert inhibitor effect, whilst maintaining good ventilation.
Patent DE-4025863-A1 (DE)
Title: Producing samples for pressure testing of hard and brittle materials - removing blank from machined piece so that plane-parallel sides present end faces for intermediate pieces
Inventor: STIEBLER KLEMENS DR ING
IPC: G01N1/28
Filed: 1990-08-16
Abstract: A piece of the material to be tested is machined so that several samples can be extracted from it. Two plane parallel surfaces are produced. A blank is separated from the machined piece such that the plane-parallel sides form the end faces of the pressure sample. The sample to provide the generated surfaces (1) is clamped in the appts. (3) via intermediate pieces (2). The latter are force-fitted to the end faces (1a) of the sample (1). The intermediate pieces can be joined to the end faces by adhesive. The intermediate pieces are produced from easily worked material and take the form of cylinders. The intermediate pieces have a central bore (4). The piece from which the samples are taken can be rectangular. USE/ADVANTAGE- Pressure resistance testing of e.g.  metal and ceramic pieces. Low wastage.
Patent DE-4026578-A1 (DE)
Title: External rear view mirror for car - uses two-section mirror surface with curved area
Inventor: KRAEMER HORST
IPC: B60R1/08
Filed: 1990-08-20
Abstract: Rear view external mirror for a passenger car having a mirror surface divided into a vehicle-side larger main mirror surface and an adjacent additional surface with progressive curvature. The progressive curvature is spherical and runs not only horizontally outwards but also slopingly downwards. ADVANTAGE - Mirror having an additional surface which provides an enlargement of the field of view.
Patent DE-4040618-A1 (DE)
Title: Constantly moving ship unloader system - has turning platforms and jibs unloading directly on quay
Inventor: GRATHOFF HARTMUT DIPL ING
IPC: B65G67/60
Filed: 1990-12-19
Abstract: The constantly moving ship unloader has a pick-up member for the cargo, and a vertical conveyor adjoined by a horizontal conveyor set on a mobile portal structure. The pick-up element (3) which is braced with the horizontal conveyor (3a) and the ballast jib (10) is braced with the ballast (11) by pylons (8) and cables (9), is designed as a rocker arm (3, 3a, 8, 9, 10, 11) and is mounted with the rocker mechanism (12) on a C-frame like rotary platform (4) which supports a discharge jib (14) with belt conveyor (15) which can swivel on a rotary platform (7) and which can be raised and lowered by a lift mechanism (13). ADVANTAGE - Using a long discharge jib it is possible to load the storage area or quay belts directly.
Patent DE-4040922-A1 (DE)
Title: Purifying combustion fumes - using multi-apertured lava filter balls on mesh supports near exhaust stack mouth
IPC: B01J20/02
Filed: 1990-12-20
Abstract: Atmos pollution, esp by C02 in combustion fumes, is countered by absorbing the fumes in filter elements made of balls of lava with multiple transverse bones. The filter unit is installed near the head of the exhaust stack from domestic or industrial furnace plant. the balls (6) are deposited as loose, replaceable layers on one or more open-mesh supports (5) forming superimposed levels in a drawer-like structure enclosed in side walls and with a catch closure on the end wall. ADVANTAGE - Filtera replacement involves no skill.
Patent DE-4041643-A1 (DE)
Title: Cordless telephone allowing for alternate two=way traffic - reduces frequency spacing of duplex channels at main station as relay between two mobile stations
Inventor: SCHWARZ ERWIN DIPL ING
IPC: H04B1/38
Filed: 1990-12-22
Abstract: The main station (BS) and mobile stations (MS) communicate by transmission of call signs (K), which their receivers (EBS, EMS) acknowledge after comparison with the contents of memories (SPBS,SPMS) to initiate conversation over another free channel. The mobile telephones can converse among themselves, using the main station as a relay, whose controller (STBS) assigns two appropriate channels. The duplex channel spacing is changed for this purpose from 45 MHz to an integral multiple of 25 kHz at the main station only. USE/ADVANTAGE - For cordless telephone system, with reduced circuit complexity and the system can be introduced without special measures.