baber/WOPTO huggingface dataset:
Patent DE-3908102-A1 (DE)
Title: Automatic circuit breaker, especially a line protective circuit breaker
Inventor: OSTERMANN WERNER DIPL ING
IPC: H01H9/34
Filed: 1989-03-13
Abstract: Known automatic circuit breakers are provided inside their insulating material housing with an extinguishing chamber which is split into the actual arc extinguishing area, which is generally filled with an arc splitter stack, and into a funnel-shaped antechamber space which is located in front of said arc extinguishing area and contains the contact arrangement. The aim of the invention is to design this antechamber space such that the switching arc encounters a particularly low flow resistance when running off the contact point and the overall construction of the extinguishing chamber is simplified. A plurality of prismatically projecting webs (3d, 3e, 3f, 3g), which are directed towards the opening plane of the contact pieces (5a, 5b), are integrally formed on the chamber walls in the antechamber space (3c), which webs (3d, 3e, 3f, 3g) are arranged to be elongated from the region of the contact point (5a, 5b), approximately in the direction in which the switching arc (9, 9', 9'') runs, between the arc guide rails (5a', 6, 7) and into the arc extinguishing area (4). The switching arc which runs away from the contact point (5a, 5b) is in this case tightly guided and additionally driven between the projecting tops of the narrow webs (3d, 3e, 3f, 3g), while the gas pressure produced in front of the arc column can equalise itself in the flow channels (8) around this column. The refinement of the antechamber space according to the invention is intended especially for the extinguishing chamber of line protective circuit breakers of slimline construction. <IMAGE>
Patent DE-3908453-A1 (DE)
Title: Process and apparatus for the discontinuous delivery of application liquids solidifying in air from application nozzles
Inventor: FUNK FRANZ JOSEF
IPC: B05B15/52
Filed: 1989-03-15
Abstract: In the case of a process and an apparatus for the discontinuous delivery of application liquids solidifying in air from application nozzles, in which the nozzle opening is closed in the pauses between the delivery, by a closing member which acts on the nozzle end face and is sealed off, and is exposed before the beginning of delivery by a drive of the closing member, it is provided according to the invention that, during the closure movement of the closing member, the nozzle end face is wiped off in a scraping manner and, following this, an oil film which serves as a seal for the closing member is applied to the wiped face from an oil supply taken along by the closing member, and that upon exposure of the nozzle opening the oil film, protected against drying out, is at least partially maintained until the following wiping operation and/or is removed by the emerging application liquid.
Patent DE-3909077-A1 (DE)
Title: Combination for producing circular recesses of infinitely variable diameter in solid material
Inventor: LEEB FELIX
IPC: B23B31/02
Filed: 1989-03-20
Abstract: To produce circular recesses, in particular also fits or tapped holes alternatively, of infinitely variable diameter in solid material by means of a tool which is driven in a rotary manner about both its own axis and the recess axis by a suitable machine, for example a CNC drilling or milling machine, works with a milling action and consists of a milling cutter, provided with face cutting edges for producing a core hole, and a clamping device for this cutter, a combination of clamping device and cutter configuration is proposed which, partly to reduce the axial cutting resistance and partly to set the absolute concentric running of the cutter, contains a clamping device in conjunction with a cutter having a number of triangular face cutting edges forming a V-shaped cutting geometry. The clamping device has a collet, having at least two gripping jaws adjustable independently of one another and acting on the cutter shank in a uniformly bearing manner in the axial direction relative to the cutting edges of the cutter, and also a centring surface for the cutter shank, which centring surface is arranged at an axial distance from the bearing points of the gripping jaws at the cutter shank and is designed as a conical annular surface. <IMAGE>
Patent DE-3911681-A1 (DE)
Title: Mixer tap
Inventor: TRIET JOSPEH
IPC: F16K11/078
Filed: 1989-04-10
Abstract: A mixer tap for supplying hot water and cold water allows the independent adjustment of the overall water flow rate and of the proportion of hot water to cold water. The mixer tap has a mixing and regulating element (2) with an actuating stub (3), a fixed housing (7) around the mixing and regulating element and an actuating part for the latter, which is connected to the actuating stub. The mixer tap furthermore has a first set of stops (10, 11), which allow the selection of a limiting value for the maximum overall flow rate, and/or a second set of stops (20, 21, 22, 23), which allow a selection of the maximum limiting value for the relative magnitude of the hot-water flow rate to the cold-water flow rate. The arrangement allows this selection to be made from a limited number of possibilities during the assembly of the mixer tap. <IMAGE>
Patent DE-3912947-A1 (DE)
Title: Bicycle with regenerative brake - has flywheel driven by wheel sliding on main shaft
Inventor: FELDT WERNER
IPC: B62M1/36
Filed: 1989-04-20
Abstract: The bicycle incorporates a regenerative braking system. It is driven by a flywheel (B) and sliding driving wheels (A,D). The flywheel is mounted in the middle of the frame, and is driven by a main shaft with sliding driving wheel(A). USE/ADVANTGE - When travelling downhill the rear wheel drives the flywheel via the sliding wheels, both braking and storing up energy for subsequent use.
Patent DE-3916994-A1 (DE)
Title: Blood return flow improvement method - using electro-stimulation of leg muscles over length of leg
Inventor: EHRLY ALBRECHT PROF DR
IPC: A61N1/32
Filed: 1989-05-24
Abstract: The pairs of electrodes (1,2;3,4;5,6;7,8) from the lower the lower pair (1, 2) are arranged successively spaced at small distances ascending up the leg, and are fed with electrical excitation pulses, to contract the leg muscles. The lengths of the excitation pulses reacting successively on the pairs of electrodes last until the top pair of electrodes is excited. The system for carrying out the method includes a generator for providing the excitation pulses, the pairs of electrodes are arranged at the leg surface and can be fed independently from each other by electrical axcitation pulses. ADVANTAGE - Improved flow with defective as well as sound valves.
Patent DE-3917768-A1 (DE)
Title: Bonded semiconductor diode and thyristor device prodn. - by vapour coating and pressure bonding in vacuum chamber
Inventor: STOISIEK MICHAEL DR
IPC: H01L21/98
Filed: 1989-05-31
Abstract: Prodn. of a semiconductor device is claimed, comprising a disc-shaped asymmetrically blocking thyristor (1) and a disc-shaped semiconductor diode (2) connected in series with the same polarity to form a structural unit with the thyristor, the blocking capability of the unit being determined by the thyristor in the thyristor forward direction and by the diode in the reverse direction. The novelty comprises (a) polishing the anode-side major face (13) of the thyristor (1) and the cathode-side face (14) of the diode (2) so that interference images show relatively few Newton's rings; (b) vacuum vapour depositing bond coat layers (27,28) of 20-100 Angstroms thickness onto the polished faces (13,14); (c) vapour depositing precious metal layers (31,32) of 40-200 Angstroms thickness onto the layers (27,28) while maintaining the vacuum; and (d) contacting and bonding the coated faces in the vacuum by applying pressure at room temp. ADVANTAGE - A strong durable bond with low ohmic junction resistance is produced without deformation of the semiconductor wafers and without reverse doping of the diode in the region of the diode/thyristor interface.
Patent DE-3919415-A1 (DE)
Title: Cheap, single value, franking machine printer - has no facility to adjust franking values or be used after consumption of franking unit
Inventor: RIESS GABRIELE
IPC: G07B17/00
Filed: 1989-06-14
Abstract: A one-time franker/printer has a fixed tariff value for each user requirement and different postal designations for different countries of use. Contrary to the case with conventional techniques, when the franking unit has been used up the device cannot be used further. The device is maintenance-free during use and is equally suitable for permanently reproducing inserts for announcing and/or advertising purposes. USE/ADVANTAGE - The one-time franking/printing machine is considerably simplified compared to those machines which have the facility to adjust the franking values. Costs are thus reduced and the machine is accessible to more potential users. After use it is destroyed, making misuse impossible. Can print firm logo, slogan, etc. at same time as franking stamp.
Patent DE-3926560-A1 (DE)
Title: Vehicular rear-view mirror with blood-spot coverage - has electromagnetic, electric-or  hydropneumatic cylinder-piston actuator for modifying angle of vision by mirror reorientation
Inventor: KREUZER JOERG
IPC: B60R1/02
Filed: 1989-08-11
Abstract: The mirror (8) in its double-L-shaped holder (7) has a rotary connection (6) to an L-shaped support (5) whose shorter limb carries a pivoted cylinder (10) and piston (11) coupled (12) to the longer limb (13) of the holder (7). The baseplate (4) to which the support (5) is fitted can be positioned by an electric motor (3).  The electromagnetic or pneumatic cylinder (10) drives the piston (11) in and out to vary the attitude of the mirror (8). USE/ADVANTAGE - On cars, heavy goods vehicles and buses.  Mirror can be fitted to either side, and on passenger side improves driver's kerbside vision.
Patent DE-3934215-A1 (DE)
Title: D=A system with pulse width modulator - is actuated by digital system, while modulator signal is amplified
Inventor: ENGEL GERHARD DIPL ING
IPC: H03M1/82
Filed: 1989-10-13
Abstract: The pulse width modulator is energised by a digital signal. A pulse amplifier processes the signal from the pulse width modulator. The signal of the pulse width modulator is converted into an analog signal by a low pass filter. An audio signal generator is pref. used as the digital signal source. Alternatively, the signal source may be formed by a CD player.  An A/D converter may also form the digital signal source. The system is typically used for operation of car loudspeaker boxes, but may also be used for control pf motors and other consumer appliances. An optical fibre may be used for transmission from the digital signal source to the pulse width modulator. ADVANTAGE - No need for an analog amplifier.
Patent DE-3942934-A1 (DE)
Title: Underground pipeline replacing rig - is dragged through old pipe and shatters old pipe via shaped head
Inventor: MUELLER HANS
IPC: E21B7/26
Filed: 1989-12-23
Abstract: To replace an old pipeline, the rig is dragged through the pipe from one inspection shaft to the next. The rig head is larger than the old pipe and has external ribs (14) which break up the old pipe into shards. New pipe sections (17) are introduced from the rear inspection shaft. The new pipeline has a larger external diameter than the old pipeline. The shaped rig head displaces the soil to create the space for the new pipe sections. ADVANTAGE - No excavations required, cost saving pipeline replacement.
Patent DE-4004344-A1 (DE)
Title: Thin cylinder hardness testing method - being produced by knife edge of standard material pressed into and then retracted to produce response curves
Inventor: SCHMIRLER GERHARD DR
IPC: G01N3/42
Filed: 1990-02-13
Abstract: A narrow cylindrical body, esp. a wire or needle of 0.5-5.0 mm dia. is laid in the prismatic groove (22) in a support (21) and then inserted by applying vertical pressure to a transverse knife-edge (24a), esp. of diamond. As the knife edge penetrates, the increasing depth is recorded in relation to applied force and recorded in a computer. From a certain depth, the knife-edge is then retracted via the same path. The distance between the two graphical curves, for loading and relaxation and/or the different slopes in selected areas of the two curves determine the hardness of the specimen relative to the knife-edge material. The process may be repeated at least once and penetration may be linear or circular. ADVANTAGE - Hardness is quickly and automatically tested for cylindrical body, without previous need for embedding and surface grinding.
Patent DE-4004889-A1 (DE)
Title: Asynchronous time division multiplex transmission system - with storage of incoming cells during comparison of path information for selecting outgoing line
Inventor: MERTELMEIER CHRISTINE
IPC: H04L12/947
Filed: 1990-02-16
Abstract: The asynchronous time division multiplex transmission system provides intermittent storage of the incoming cells received from the incoming lines (7a...7d), before evaluation of the path information via a comparator, to allow transfer to an outgoing line. The intermediate circuit (25) between a synchronisation circuit (6) for the incoming lines (7a...7d) incorporates at least one coupling element, the comparator (16) coupled to the intermediate lines (14a...14d) and incorporating the storage buffers (22a-22d), with a multiplexer (24) controlling their read-out.
Patent DE-4006542-A1 (DE)
Title: Magnetic field correction device for CRT - has correction coil supplied with decaying AC signal and magnetic field dependant DC signal
Inventor: OTSUKA HIROSHI
IPC: H04N9/29
Filed: 1990-03-02
Abstract: The device uses a magnetic field correction coil (13) supplied at one end with an AC voltage provided by a voltage  generator (39) exhibiting a decaying voltage amplitude. The  opposite end of the coil (13) is supplied with a DC voltage corresponding to the magnetic field detected via a magnetic field sensor (24). The correction coil (13) is wound around the CRT of an image monitor, which may be enclosed by a magnetisable  material. Pref. the magnetic field sensor (24) responds to the horizontal component of the earth's magnetisation. USE - For eliminating magnetic field errors.
Patent DE-4016109-A1 (DE)
Title: Automatic casting unit with mould prodn. and casting stations - logs data concerning each mould and marks it so that appropriate action is taken following casting e.g. if mould proves to be empty
Inventor: JENSEN KAJ JOERGEN
IPC: B22D47/02
Filed: 1990-05-18
Abstract: Automatic casting installation with conveyors (22,31,32) for raw material, moulds and cores has the novelty that a recording system (51) logs data from the mould production and preparation station (11) and the casting station (21).  The parameters are recorded relative to each individual mould and may be supplied from outside or by determining the physical dimensions or other conditions concerning the mould. The parameters are fed to a control unit (53) which regulates operation of the casting station (21). Casting into the mould is prevented should the parameter data not conform to predetermined values or to other information which indicates that the mould is unsuitable. ADVANTAGE - The design prevents the danger of casting operations being conducted when the mould is unsuited for use.
Patent DE-4019774-A1 (DE)
Title: Cassette for noise protection - is filled with pneumatically compressed fibre material
Inventor: SCHARENBERG HANS
IPC: G10K11/16
Filed: 1990-06-21
Abstract: The housing for the cassette is formed by a bath-type lower part (1), and a similarly shaped upper part (2). The lower part has a flat base (3) of smooth plate, and low side edges (4) between which is an inwardly directed reinforcement edge (5). The upper part has a front surface (6) and side edges (7) with which it can partly engage over the side edges of the lower part. Parallel to opposing side edges (4) of the lower part is a U-shaped reinforcement plate (8) fixed with one arm to the base (3). In one side edge (4) of the lower part is a blow-in  aperture (9) for compressed air, next to which and also opposite to are outlet apertures (10). Filling with insulating material occurs with the housing closed so that a compact fill is achieved using stone wool. USE - As a cassette for the construction of sound-proofed cabins.
Patent DE-4020558-A1 (DE)
Title: Multi-stage gearbox with finely and coarsely stepped gear groups - has intermediate gearset, with sliding coupling and parallel double gear, arranged between finely stepped group and clutch
Inventor: MUELLER FRANZ
IPC: F16D25/12
Filed: 1990-06-28
Abstract: The multi-stage gearbox has the first counter shaft (12) of a finely stepped first gear group (7) axially coincident with the primary shaft (39) of a coarsely stepped main gear group (8). Between the first gear group and a clutch (26), a sliding coupling (36) encloses the axial bearing (33) joining the first counter and primary shafts. A double gear (28,29), rotating on a fixed axis (30) parallel to the coupling axis, meshes with a floating gear (31) on the output side of the sliding coupling. ADVANTAGE - Provision of an extra gearset without affecting the existing gear ratios.
Patent DE-4020808-A1 (DE)
Title: Clock pulse controlled data bit transmitter - has subscriber station with controllable clock pulse source coupled to data line
Inventor: SCHROTTENLOHER PETER DIPL ING
IPC: H04L7/00
Filed: 1990-06-29
Abstract: The transmitter has at least two allocated subscriber positions interconnected by a data line (3). It transmits each data bit in bit times limited by clock times of a clock pulse train. One subscriber station contains a clock pulse source, clock controllable and coupled to the data line. It is used to increase a first voltage level in the clock generator cycle to a second voltage level per pulse. At least one subscriber station has a switching device (23), controllable by the data pulses, under control of a bit time between two clock pulses. In the case of a data bit at the other logic level, the data line is short circuited by the switching device. USE/ADVANTAGE - High density magnetic tape recording. Single clock pulse generator for series data transmission.
Patent DE-4022026-A1 (DE)
Title: Optical coupler for laser amplifier chip - uses spherical lens between chip emergent face and angled incident face of optical fibreA
Inventor: GREIL ANDREAS DIPL PHYS
IPC: G02B6/32
Filed: 1990-07-11
Abstract: The connector allows the chip (1) to be coupled to an optical fibre (4) by a spherical lens (3) inserted in the light path between them for reducing the rear reflection.  The laser amplifier chip (1) has an active zone (2) at an acute angle to the light emergent face, the optical fibre (4) having an angled light incident face. The axes of the laser beam, the lens and the optical fibre are offset from one another in the axial direction. ADVANTAGE - Reduced rear reflection for increased coupling efficiency. Symmetrical construction.
Patent DE-4028786-A1 (DE)
Title: Air intake manifold for IC engine - has dividing wall with through aperture closable by throttle valve
Inventor: CAROLIN BERND
IPC: F02B9/08
Filed: 1990-09-11
Abstract: The air intake manifold (1) has an air entry aperture (2) and several air outlet apertures (3) leading to the suction channels of the individual cylinders of an internal combustion engine. The interior of the manifold is divided by a wall (4), on either side of which are equal numbers of air outlet apertures. To influence the resonance characteristics of the manifold, the dividing wall has a through aperture which is closable by a throttle valve (5). The throttle valve is rotatably located with its shaft (6) in a housing (7). This housing can be inserted from the exterior in the region of the inlet aperture in the manifold (1), where it is releasably attached by screws (8). USE/ADVANTAGE - To improve dissipation of resonance in an internal combustion engine air intake manifold.
Patent DE-4032117-A1 (DE)
Title: Pneumatic false twisting spinning station -  is a double station with a common drawing unit for the two slivers
Inventor: STAHLECKER FRITZ
IPC: D01H1/115
Filed: 1990-10-10
Abstract: The spinning stations of a pneumatic false twisting spinning assembly are structured as double spinning units with a common drawing unit for two slivers. The slivers pass through a common guide to the separate pneumatic false twisting sections. The guide surfaces are driven at a higher speed than the delivery speed of the drawing unit and also faster than the yarn take-off speed. The guide has a hollow cylinder containing a suction system and with perforations at the guide surfaces. A double spinning station is between the guide surfaces with a separator to keep the slivers apart from each other. The separator has a wall running generally radially to the guide surfaces with a recess matching the contour of the guide surfaces, with a lateral wall to define the gap to the guide surfaces. The separator wall has a shell or grooved recess round the peripheral direction of guide surfaces. The wall of the separator extends as far as the wedge-shaped gap at the paired delivery rollers of the drawing unit, with a recess to match the delivery roller contour, and ranges back into the zone bettween the guide and the facing roller away from the guide surfaces. The separator can be mounted and held at the guide and/or the paired delivery rollers of the drawing unit. ADVANTAGE - The assembly allows two yarns to be spun at the same stations, with only a small gap between the pneumatic false twisting spinning units as there is no ballooning of the slivers and they do not touch each other.
Patent DE-4032946-A1 (DE)
Title: Container with inner and outer receptacles for rubbish -  has rotary drive mechanism, bearing shaft, and meter
Inventor: GRONHOLZ CLAUS DIPL ING
IPC: B65F1/04
Filed: 1990-10-17
Abstract: The container, especially for rubbish, consists of an outer (12) and inner (11) container which can turn, driven by a mechanism (30), on its lengthwise axis by means of a bearing shaft (20) inside the outer (12) container which has a square exterior (13). The outer and inner container' (11,12) opposite facing sides are part cylindrical. The open top sides of the outer and inner containers (11,12) are level. The top of the part cylindrical surface (17) of the inner container (11) has a seal between inner and outer container. At least one end of the inner container has a metering flap preferably for photo ionisation. A hydraulically adjustable cylinder (27) connected to a gear (31) turns the inner container. USE/ADVANTAGE - The contents of the container are always visible, especially for dumping or recycling.
Patent DE-4037396-A1 (DE)
Title: Irrigation line - has central hose with porous surround to bury at root level
Inventor: ARNOLD ROLF
IPC: E02B13/00
Filed: 1990-11-22
Abstract: Linear irrigation channel consists of a hose with periodical outlets, surrounded by loose tufts, or a web of rotproof textile material, held in place by an outer elastic net. Pref. a plastic tube (1) of 15 mm outside dia., has 10 mm bore, and 1.5 mm holes at 400 mm distance along the length (6). The surrounding five layers (2) is made up of 150 mm wide porous web, having a density of 80 gms per sq. metre. This is enclosed in a net (4) having 65 loops per metre made of 200 tex polymer. The porous web of textile material may be a byprod. from other processes, and may be reinforced near the exterior with a compression resisting material, when buried deeply. USE - The channel is buried to give water at root level, and supplies water economically without disturbing the surface soil.