baber/WOPTO huggingface dataset:
Patent DE-4015167-A1 (DE)
Title: Housing for brake pads on disc brake - is held in place by leaf spring which is clipped to supporting frame
Inventor: HENDRICH UWE
IPC: F16D55/2265
Filed: 1990-05-11
Abstract: A disc brake has the brake pads mounted in a housing which is supported in a frame (4). This frame (4) consists of a rectangle (8) with two horizontal arms (12) projecting axially from each end of its upper edge. These two arms (12) are connected by a cross-member (15). The brake pad housing is held in place by a leaf spring (42). This leaf spring has two lugs (59) extending at right angles from its mid-point. These two lugs (59) from a U-shaped clip which fastens the leaf spring (42) to the cross-member (15) of the frame (4). USE - Disc brakes of vehicles.
Patent DE-4019778-A1 (DE)
Title: DC operating circuit for multi-phase synchronous motor - uses electronic switches for communication of successive winding phases
Inventor: FROEHLICH PETER DIPL ING
IPC: H02P6/08
Filed: 1990-06-21
Abstract: The circuit uses a number of electronic switches (13..,15) for successive connection of the different winding phases (U, V,W) of the armature winding (10) to the DC network voltage.  The switches (13..,15) are operated via a commutation logic (16) responding to the detected rotor position provided by a number of Hall sensors (17..,19). Pref. the Hall sensors (17..,19) are positioned around the rotor at equi-angular positions, each angle corresponding to the product of the number of phases, multiplied by the number of rotor pole pairs, divided into 360 degrees. ADVANTAGE - Reduced commutation noise.
Patent DE-4020044-A1 (DE)
Title: Rotating body esp. waste water treatment for drum reactors - with mounting rings to which drum frame is bolted first welded to drum shaft and weld stress-received to reduce danger of fracture
IPC: C02F3/08
Filed: 1990-06-23
Abstract: A rotating body with at least one frame attached to a central rotating shaft and filled with a substrate for microorganisms, is provided with one or more mounting rings to which the frame is attached and which are welded to the shaft. The rings completely surround the shaft and are pref. attached to it by at least one circumferential weld seam. The rings may be star-shaped, and have a number of through holes, or screwed blind holes, equally spaced about their edges. The frame is attached to these holes by screws. The rings may have projections (24) in the region of the fixing holes, between which are stress-reducing recesses. Radial members of the frame are attached to the rings, each member being preferably attached to one projection on the ring. The shaft may be in the form of a tube, the thickness of the rings being less than the wall thickness of this tube. The inner radius of the rings is closely fitted to the shaft, and is provided with chamfered edges. The rings and shaft are heated after welding at least in the region of the welds, and may be stress relieved by annealing at 600-700 deg.C.. USE/ADVANTAGE - Used in the mfr. especially of rotating-drum reactors for the continuous cleaning of liqs., and esp. of waste waters. The common metal fracture problem with existing reactors of this type, in which the frame is welded directly to the shaft, is avoided. The serviceability and productivity of the reactor unit are therefore improved.
Patent DE-4020168-A1 (DE)
Title: Rod-controlled grill cleaner for power stations - has grill arm, and all its movements are activated by motor with threaded drive and pivot rod
Inventor: GEIRHOS MATHIAS
IPC: E02B8/02
Filed: 1990-06-25
Abstract: All necessary grill movements are only effected by means of a drive motor (8) working in conjunction with a threaded spindle (5), a tapped nut (7), and a rod combination consisting of a thrust rod (10), a drive (11), a tip lever (12), a further thrust rod (13), and disengagement seesaw (14), the latter being pivoted by a second drive motor and threaded drive. The grill arm (I) need not consist of an outer (1) and inner (2) tube which is its standard format, but can comprise several inner tubes running one in the other telescopically so that for deeper stretches of water a reduced structural height is achieved. USE - To clean grills at water power stations.
Patent DE-4023700-A1 (DE)
Title: Frequency monitoring circuitry for signal sequence - applies cyclic reset signal on detection of excessive frequency error esp. as microprocessor watchdog
Inventor: BULLMER WOLFGANG DIPL ING
IPC: G06F11/14
Filed: 1990-07-26
Abstract: The circuitry monitoring electronic equipment contains a device for generating an error or reset signal for the equipment if a selected deviation from a defined frequency is exceeded. A frequency generator (31) produces a cyclic error or reset signal when such an excess frequency deviation state exists. The frequency generator is in the form of a start-stop oscillator. USE/ADVANTAGE - Microcomputer watchdog, e.g. electronic control unit of motor vehicle. Enables equipment to be brought back into correct operational state after occurrence of fault resulting in excessive frequency error.
Patent DE-4023849-A1 (DE)
Title: Ceramic material contg. pre-ceramic silicon polymers - and metallic powder with equivalent of organo:metallic cpd., useful as matrix in ceramic fibres
Inventor: EHRMANN URSULA DIPL ING
IPC: C04B35/65
Filed: 1990-07-27
Abstract: Ceramic material (I) based on preceramic Si-polymers (e.g. polysiloxane, polysilane, polysilazane) are claimed which are homogeneously mixed with 0-90 wt.% ceramic powders (e.g.  SiC, Si3N4, 3Al2O3.2SiO3) and 0.1-60 wt.% metallic  powder and/or with an equivalent amount (based on the metal) of an organometallic cpd. Dur ing pyrolysis of the preceramic Si-polymer to form a ceramic matrix, the metal powder and/or the organometallic cpd. are reacted with the pyrolysis prods. to form oxidic, carbidic, nitridic structures or their mixts. and these are bonded with oxidic and nitridic components and/or free carbon from the pyrolysis prods. of the preceramic Si-polymer. Pref., before crosslinking of the Si polymer, inorganic continuous fibres (e.g. C, SiC, SiO2, Al2O3, Si3N4, Al2O3.SiO2.B2O3 or their mixts. orcpds.), ceramic short fibres, whiskers or platelets of identical composition are used as reinforcing agents. USE/ADVANTAGE - (I) is used as a matrix in ceramic fibre composites. It has improved high temp. properties.
Patent DE-4028990-A1 (DE)
Title: Vehicle airbag gas generator -  has combustion and detonation chambers with some chamber connecting apertures closed at low ambient temps. by temp. dependent valve element
Inventor: KERNER WOLFGANG DIPL ING
IPC: B60R21/264
Filed: 1990-09-13
Abstract: The gas generator (1) for vehicle airbag restraints has charge-filled combustion and detonation chambers (5, 3) connected by detonation apertures (7, 8). A temp. dependent valve element (10) closes a number of the apertures at low ambient temps. in the gas generator and opens all apertures at high temps. The valve elements is actuated by a shape-memory alloy drive element, forming the temp. sensor. USE/ADVANTAGE - The gas generator for a vehicle airbag both requires less combustion fuel and is suitable for a wide temp. range.
Patent DE-4034487-A1 (DE)
Inventor: FIMML HANS DIPL ING
IPC: H01J1/312
Filed: 1990-10-30
Abstract: The invention relates to a method for operating a tunnel cathode, which consists of a basic metal, an insulating layer and a metallic covering layer. If an electrical potential is applied to these, an electron emission occurs if the insulating layer and covering layer are suitably thin. In this case, the difficulty is that the insulating layer is severely stressed by the necessary high field intensity. This stress is considerably reduced according to the invention in that the diode current flowing between the basic metal and the covering layer is converted into brief pulses by means of an interrupter or an electronic chopper. The Al - Al2O3 design used in tunnel cathodes has disadvantages to the extent that the Al2O3 represents a  gamma -modification, which is hygroscopic and is sensitive to acid. For this reason, the invention also specifies the conversion of the  gamma -modification into the  alpha -modification, which does not have these disadvantages.
Patent DE-4036723-A1 (DE)
Title: Filling and emptying device for extinguisher - has two instruments with independent positioning motors, with coupling by magnet valve
Inventor: COLLJUNG RAIMUND
IPC: A62C37/50
Filed: 1990-11-17
Abstract: The filling and emptying equipment for rise pipes (10) of static fire extinguishers has filling (1) and emptying (2) instruments operated by the pressure of the extinguishing medium used by positioning motors. The movement of the two instruments by reason of a coupling is in opposite directions, and the flow to the work chamber of a positioning motor via a control pipe (8) occurs via a remote-controlled magnet valve (5) for opening and closing. The filling and emptying instruments (1,2) have independent positioning motors (3,4), and coupling of them is via a common magnet valve (5). Via a branching control pipe (8,6,7), the magnet valve is connected to the filling instrument positioning motor work chamber acting in the closure direction and to the emptying instrument positioning motor work chamber acting in the opening direction. USE - To fill and empty static fire extinguishers.
Patent DE-4107086-A1 (DE)
Title: Sliding prevention system for blind shaft - has metal strip with square opening in spherical protrusion
Inventor: SCHLOTTERBECK HELMUT
IPC: E06B9/50
Filed: 1991-03-06
Abstract: The system prevents sliding of a driven rotary coiling shaft for blinds, awnings etc., using a metal strip fixed at the end of the blind housing. The strip (1) has a spherical protrusion (3) at the bearing. In this is a roughly square opening (4) with a pin (5) at the bottom. Above the opening a lug (6) is cut out and bent slightly inwards from the protrusion. ADVANTAGE - Simple installation and securing of shaft.
Patent DE-4115213-A1 (DE)
Inventor: REIME GERD
IPC: H04N9/79
Filed: 1991-05-10
Abstract: The comb filter (13.1) in the chrominance channel (6) at the playback side of a video recorder contains, in parallel with its delay circuit (14), an addition circuit (15) and a subtraction circuit (25), the signal outputs of which are connected to a comparison circuit (30). From the comparison of the envelope curves of the output signals (Sc and Sd) of the addition and subtraction circuit, the latter then generates a switching signal (Sf) for controlling an electronic switch (31) when the level of the envelope curve of the subtraction signal is greater than the level of the envelope curve of the addition signal. For this purpose, the level ratios of the two signals are adjusted in such a manner that the level of the envelope curve of the subtraction signal at a transition from white background to a chrominance signal of a particular colour intensity is greater than the level of the envelope curve of the addition signal at the same colour transition. As a result, colour transitions in parallel lines, which transitions are subjected to colour interference due to the comb filter action, are correctly detected and, by switching to an undisturbed chrominance signal, are replaced by this chrominance signal (Sa). <IMAGE>
Patent DE-4116580-A1 (DE)
Inventor: NIEENDICK CLAUS
IPC: C11D7/26
Filed: 1991-05-21
Abstract: Disclosed is the use of 2-ethylhexyl esters of fatty acids, optionally mixed with emulsifiers, solubilizers, corrosion inhibitors and/or water, as low-viscosity agents for the cold cleaning of metal surfaces contaminated mainly with oil. Such agents are non-toxic when inhaled and completely biodegradable.
Patent DE-4119793-A1 (DE)
Title: Air massaging method for sun bed - using e.g. rotating tubes to emit impulses of humidified air after chemical filtering, for improving circulation of blood during tanning
Inventor: HOELTER HEINZ PROF DR
IPC: A61N5/06
Filed: 1991-06-15
Abstract: The method achieves tanning with simultaneous skin massage and skin humidification using a flow of clean, humid air. Solarium cabins are equipped with a device for generating pulses of air in combination with a moisture generator. The air is fed in via a filter containing bacteria and fungicide. The air may be ejected onto the body via rotating tubes having spiral-shaped openings and variable speed. Vibration of the air may be superimposed on the air stream, e.g. by electromagnetic pistons, to increase the massaging effect. ADVANTAGE - Healthier.
Patent DE-4126815-A1 (DE)
Title: Speech decoder system for digital telephone network - has regenerator with detector to produce standard DTMF signal from input signal contg. distorted DTMF signal
Inventor: RANDERS ESBEN
IPC: H04Q1/46
Filed: 1991-08-09
Abstract: The speech decoder has devices (15) for regenerating a standard DTMF signal from an input one, contg. a distorted DTMF signal. The regenerating devices pref. contain DTMF signal detectors (17) as well as generators (18) of a standard DTMF signal. The generators typically contain a tone generator (9) coupled to the detectors, as well as a delay member (5) coupled to the input signal. A multiplexer (10) is coupled to the tone generator, the delay member, and the detectors. The detectors may contain devices for separating the input signal into a HF and an LF group, as well as devices for determining autocorrelation coeffts. and energies for both frequency groups, which can be compared. USE/ADVANTAGE - Telephone answering machines and conference systems, with facility for access of DTMF signals to detectors.
Patent DE-4126817-A1 (DE)
Title: Rectifier circuit for use with rail systems - has connector lines coupled to fast response isolator stages having thyristor based coupling and discharge circuit
Inventor: GERLACH HORST DR ING
IPC: B60M3/00
Filed: 1991-08-09
Abstract: The rectifier has an input stage (1) coupled to the collector points (3,4) via fast response isolators (5,6) and with current converters (7,8). Each isolator connects with a coupling module (9,10) that has forward and return diodes (16,18) and awaiting isolators (11,12) arranged as parallel stages connected to return and forward lines (20,21). A coupling/discharge module (13) has diodes (22,34) a coupling thyristor (23) together with discharge thyristors (24,25) and discharge capacitors. ADVANTAGE - Cost effective fast isolation coupled with simple test possibilities.
Patent DE-4128274-A1 (DE)
Title: Thermoplastic polyurethane blends with improved properties - are prepd. by compounding thermoplastic polyurethane with a polyester and small amts. of organic di;isocyanate
Inventor: RISCHE THOMAS DIPL ING
IPC: C08L75/04
Filed: 1991-08-27
Abstract: Thermoplastic moulding materials (I) with increased strength and elastic modulus and improved thermal dimensional stability are claimed, contg. (A) 99.5-60 wt.% thermoplastic polyurethane elastomer (TPU) and (B) 0.5-40 wt.% other polymer, the novelty is that (B) is a polyester, and (I) also contains (C) 0.05-5 wt.% organic isocyanate esp. a diisocyanate. Also claimed is a process for the prodn. of (I) by blending (A) with amts. of (B) and (C) as above. Amt. of (C) is 0.1-3 wt.%, (A) is a polyester- and/or polyether-urethane based on long-chain OH cpds. with mol. wt. 500-3000, short-chain aliphatic and/or aromatic diols with mol. wt. below 600, aliphatic and/or aromatic diisocyanates and opt. stabilisers, etc., (B) is a homo- and/or copolymer and/or a blend based on linear thermoplastic polyester, pref. polyalkylene terephthalate, polycarbonate or polyethylene terephthalate/p-hydroxybenzoic acid copolymer, (c) is an aliphatic and/or aromatic diisocyanate and/or diiisocyanate- releasing cpd. and/or NCO-terminated prepolymer with mol. wt. below 500 contg. 0-60 wt.% higher-functional isocyanate, (C) is introduced into the compounding process together with (A) and/or (B) as a premix or separately via the same inlet, pref. (C) is added as a liq. or solid, in the direction of processing after adding (A), compounding temp. is 180-250 (pref. 210-240) deg.C. USE/ADVANTAGE - The invention provides TPU-based moulding materials with the above combination of improved properties, this is achieved by chemical reaction between terminal OH and COOH gps. in (B) and the diisocyanate (C) dissolved in (A), component (B) softens even at the low compounding temps. used, thus minimising thermal degradation of (A)
Patent DE-4130634-A1 (DE)
Title: Motor-driven body messager for humans and animals - has detachable flat circular disc with adhesive contact layer underneath
Inventor: KURHT HELMUT
IPC: A46B13/02
Filed: 1991-09-14
Abstract: The disc has several individual brush type elements (38, 39) set at a distance (37) from its top side and on its underside the adhesive connecting layer by which it is connected to the drive can be a textile touch and close type fastening layer. The drive member (15) can rotate around its centre point or can be driven eccentrically. The disc is pref. made of hard rubber or plastics. Bending soft intermediate members of hard rubber or plastics connect the individual elements to the top of the disc. A dust suction means can be associated with the drive machine. USE/ADVANTAGE - The rotary driven disc cuts down on the manual effort required for body massage and grooming of animals.
Patent DE-4130705-A1 (DE)
Title: Heterodyne frequency-changer - has three differential amplifier stages in control circuit with loop including low pass filter or regulating amplifier with 0.5 duty ratio
Inventor: TRAENKLE GUENTHER DIPL PHYS
IPC: H03D7/12
Filed: 1991-09-14
Abstract: An antiphase mixer (M) is constituted by a differential amplifier stage with two transistors (T71, T72) driven by emitter-followers (T5, T6) with current sources (I5, I6). The local oscillator input connection (E) is sepd. from the mixer (M) by two further differential amplifiers (T11, T12; T21, T22) and a control loop. Pref. this loop detects the on/off ratio of the output of the second differential amplifier (T21, T22), whose input level is set by a third differential amplifier (T31, T32). ADVANTAGE - Esp. low-noise circuit guarantees high reverse isolation at input with control loop sepd. from output of control stage.
Patent DE-4133413-A1 (DE)
Title: Device for delivering adhesive of single component type - comprises work cylinder with adhesive entry aperture and control delivery nozzle in cover
Inventor: JACOBS WILLI
IPC: B05C11/10
Filed: 1991-10-09
Abstract: Work cylinder is a displaceable work cylinder and the entry aperture is closable by a first closure component. The delivery nozzle is closable by a needle-shaped second closure component, which is axially guided through the work piston and is connected to a displacement drive. The work cylinder is a double-acting cylinder and the empty aperture for the adhesive being arranged in the cover, the aperture for the input and output of flow medium for the drive of the work piston is in the floor of the work cylinder. The needle-shaped closure component can be moved between a withdrawn position releasing the delivery nozzle and one in which it is advanced to close the nozzle. USE/ADVANTAGE - To deliver adhesive material evenly and with precision.
Patent DE-4133833-A1 (DE)
Title: Continuous identification marking system for communication or control cables - performs cleaning cycle of spray nozzle between switching marking paint colour
Inventor: STASCHEWSKI HARRY
IPC: B41F17/00
Filed: 1991-10-12
Abstract: The marking system uses a pair of marking devices (K1, K2) lying next to one another. Each marking device comprises an oscillation system with at least one spray jet and a paint catchment dish (14, 15), a feed pump (F) and a paint return pump (R). A cleaning fluid reservoir (20) is coupled to the feed pump (F) and a soiled paint container (21) is coupled to the return pump (R). The connections to the paint containers (18, 19) or the cleaning fluid reservoir and the soiled paint container are controlled via valves (V1, V12), to allow cleaning before switching between paint colours. USE - For identifying communications or control cable wires.
Patent DE-4139763-A1 (DE)
IPC: A61K31/4995
Filed: 1991-12-03
Abstract: 1,5-Fumaric acid salts of N,N'-di-lower alkyl-substituted 9,9-alkylene-3,7-diazabicyclo[3.3.1]nonanes are described. The salts are obtained in stoichiometrically pure form and are virtually non-hygroscopic.
Patent DE-4200546-A1 (DE)
Title: Automatic sortation system for e.g. polyethylene terepthalate bottles - includes feeding through inspection device where faults generate corresp. signals and affected bottles are removed at suitable stations
Inventor: FIWEK WOLFGANG
IPC: B07C5/342
Filed: 1992-01-11
Abstract: In a new bottle-treating system, and partic. one for polyethylene-terephthalate bottles, the bottles are first passed through a checking station where they are inspected for the presence of any particular types of fault and classified accordingly as satisfactory or faulty; faulty bottles are then separated, whilst the rest are passsed to the next treatment. The bottles are fed conventionally (1) so as to move at regular intervals by means of e.g. a chain conveyor (4) with holders (9) to grip the necks of the bottles (11). Each holder (9) has jaws (13,14) to grip the neck and is shaped accordingly (16). The conveyor takes the bottles to the discharge point (22) where they are picked up (23) and delivered to the following processing station. The bottles pass the inspection station (26) which detects various types of fault e.g. non-standard types or those filled with non-standard contents etc.. Such faults generate correspondng signals in a device (28); these pass to a control arrangement where an extractor device (36) removes the relevant bottles from the conveyor (4). Different signals from the device (28) can stimulate different separators (41,42,43) so that the rejected bottles become appropriately classified and sorted. ADVANTAGE - The process provides conformity and eliminates errors.
Patent DE-4208740-A1 (DE)
Title: Underground support ring for planting trees in paved areas - has pressure distributor grid with radial arms
Inventor: KOCH ARNIM
IPC: E01C9/00
Filed: 1992-03-18
Abstract: The radial arms (3) connect the outer support ring (1) to the inner support ring (2) secure against distortion. The grid (6) is installed in a supporting layer which surrounds the trench dug for the tree and over which the paved or plastered arem is to be laid. The edge area of the fixed surface is supported vertically and horizontally. The inner support ring (2) pref has angled areas forming an abutment for the edge of the fixed surface. ADVANTAGE - The trench can be madqe large enough to ensure good growth without danger of the top surface breaking up through subsidence.
Patent DE-4211761-A1 (DE)
Title: Redn. of scrubber liquor aerosol carry-over - by indirect air cooling, suitable for air conditioning system scrubber product air
Inventor: SAMERSKI LOTHAR DR ING
IPC: B01D5/00
Filed: 1992-04-08
Abstract: Exhaust air from a wash liquor scrubbing installation is purified by passing the scrubber outlet air (vapour) through an air-cooled heat exchanger. Warm moist air stream at 70 deg. C from a liquor scrubbing installation, is cooled to approx. 35 deg. C by passing through a heat exchanger against a cool air flow at approx. 20 deg. C. Stream deposits condensate on cooling and so is effectively dried; stream has its temperature raised above its dew-point. After leaving the exchanger the two streams are combined to produce a discharged flow of air visibly free of moisture (i.e. less than 1mg/m3). USE/ADVANTAGE - Reduction of aerosol cloud emissions from air scrubbers, by air stream dew point control, in an energy efficient scheme.