baber/WOPTO huggingface dataset:
Patent DE-2912854-A1 (DE)
Title: Demodulator for binary frequency modulated signals - uses difference between measured and expected periods to determine state change at receiver, after given constant time
Inventor: GERLACH ALBRECHT DR ING
IPC: H04L27/156
Filed: 1979-03-30
Abstract: The demodulator compares the measured values of the half-periods with one of the two expected values for the half period corresponding to the first and second frequency. The difference between the expected value and the measured value determines the point in time at which transmit-side changeover occurs from one binary state to the other. After given constant time relating to this point is initiated to produce the binary state in the receiver corresponding to the binary state of the transmitted signal. The two binary states are sent by switching over between two carrier waves of different frequency (=first and second frequencies). The periods are determined by counting the number of clock pulses between consecutive zeros of the waveforms of these two frequencies at the receiver.
Patent DE-2915868-A1 (DE)
Title: Dry cleaner for HI=FI sound record discs - has disc passing between two inclined conical rollers with adhesive covering to remove dirt from grooves
Inventor: NAWRATH PETER
IPC: G11B3/58
Filed: 1979-04-19
Abstract: The dry cleaner has an adhesive substance on a backing wrapped around two rollers between which the disc passes. The rollers are conical. One roller is hinged so that it can be pivoted clear of the other. The axes of the rollers are arranged such that the curved surfaces of the rollers rest on the faces of the disc. The adhesive substance removes dirt from the disc without coming away from its backing. The viscosity of the adhesive is chosen so that it penetrates to the bottom of the disc's grooves. The adhesive has antistatic properties. The backings are conical and fit over the rollers: they are removed and disposed of once the adhesive has lost its adhesive power. The rollers are covered with an elastic layer and may be driven manually or eletrically.
Patent DE-2919723-A1 (DE)
Title: Panel edge retouching process - draws off colouring fluid after fibre saturation and returns it to pressure vessel
Inventor: PRUEFER ECKERHARD
IPC: B05C11/10
Filed: 1979-05-16
Abstract: The process retouches the edges of components of wood, chipboard etc., coated with material and particularly as used for furniture components, using a colouring fluid stored in a pressure vessel with filters and valve. The fluid is delivered in sufficient quantity at a pressure of 0.04-0.08 kg/sq. cm. to the edge tobe retouched, and after the fibres of the coating material have been saturated it is drawn off and returned in a closed circuit to the vessel again, where it is separated from the transporting air.
Patent DE-2924399-A1 (DE)
Title: Nozzle for sandwich construction injection mouldings - elastic valve plate plus controls permit skin or core polymer flow
Inventor: LOHMANN ALBERT
IPC: B29C45/16
Filed: 1979-06-16
Abstract: Injection moulding nozzle, for injecting at least two different polymers to produce composite (sandwich) mouldings, has a main bore plus at least two feed holes and a valve to combine/separate them. This valve has an elastic bored plate on the inlet side, polymer feed holes lead to a space on each side, at the back of the plate a through hole has a seal face. The plate is moved into two positions, in the first at least part of its front face seals off the inlet side of the main bore, in the second it is lifted away and allows connection between the inlet side space and the main bore. Arrangement permits very short injection times; bore size is unaffected by the valve design.
Patent DE-2925391-A1 (DE)
Title: Digital communications network - has insertion of vacant characters filling gaps obtained by handling at progressively increasing clock rates
Inventor: KLIEM HELMUT DIPL ING
IPC: H04J3/07
Filed: 1979-06-21
Abstract: The digital communications network has an autonomous clock oscillator for each coupling point, the latter operating in exclusive frequency ranges which increase in the transmission direction. The incoming TDM signals are stored according to the transmission channel at each coupling point and handled at a higher clock rate with channel and frame synchronisation. The resulting signal gaps have vacant characters inserted in them and the resulting TDM signal with frame and channel synchronisation is extracted by a time multiplex technique according to the channel for subsequent transmission. The inserted vacant characters are removed before conversion of the TDM signal into a different format, eg a PCM analogue or digital signal.
Patent DE-2929661-A1 (DE)
Title: DC=AC current source impedance network - has detector measuring resistor resistance, with output voltage cancelling AC input signal (BE 28.1.80)
Inventor: VENKEN JAN HUBERT GHISLAAN
IPC: H04M3/02
Filed: 1979-07-21
Abstract: The network has a variable resistor and a DC detector detecting changes in its resistance. Their terminals are connected to diagonals of a bridge circuit. A filter is allocated to the detector and ensures that the current source AC component has no effect on the operation of the detector with an output at a fixed DC potential. This output is connected to the current source, that an AC component at its output cancels the AC signal at the detector (DC) input.
Patent DE-2932150-A1 (DE)
Title: Child's safety seat for car - has padded structure over lap with slot for restraining belt
Inventor: MOTHES HANS
IPC: B60N2/28
Filed: 1979-08-08
Abstract: The child's safety seat for strapping onto a car seat has a padded structure (1) which sits over the lap of the child and protects it from impacts and prevents it from slipping out of the belt. The top of the structure has a curved slot, (6) open to the top, to take the restraining belt (8). The restraining belt is clipped to the fixed belts (10) by release clasps. The two shoulder belts.
Patent DE-2932616-A1 (DE)
Title: Ventilated paint spray booth - is divided into sections, with individual air flows, at different speeds
Inventor: LINDBLADH HARRY
IPC: B05B16/60
Filed: 1979-08-10
Abstract: The paint spray booth incorporates an air flow, which passes through it at high speed, to move paint particles and solvents away from the area of the operator. The bottle is divided into two or more sections in a longitudinal direction, each having an individually controlled air inlet unit. The air emerges from these units at different speed, so that the booth section, through which the air passes, is screened from the neighbouring sections. The booth has sensors in all sections. Dependent upon the presence of one operator in a section the sensors actuate associated valves, so that the air flows through one section only. The valves are switched via an independent control system. For drying purposes, air may be passed simultaneously through all booth sections.
Patent DE-2933952-A1 (DE)
Title: Solar heat conveying composite wall or roof panel - has ducts linking cavities between thin plates forming trapezoid profiled cover
IPC: E04C2/52
Filed: 1979-08-22
Abstract: Mechanical joining is provided for a heat-insulating core and covering on both sides - one, at least, having trapezoid profiling - in an element assembled with others into a wall, ceiling or roof covering. For extracting or supplying solar energy, the profiled covering is made up from two complementary, pref. thin sheet metal plates (3,4), fitting together along their stem pieces (5). These form narrow cavities (6,7), sealed at the edges (10,11). In the edge area the cavities are connected by one or more ducts, and they have a shared attachment for inflow and outflow of the medium flowing through them. Plates are pref. non-corroding, and the outer one can be covered by a flat transparent pane.
Patent DE-2939046-A1 (DE)
Title: Heat exchanger for waste heat recovery from flue gases - has adjustable flue gas connector, located eccentrically
Inventor: SCHWENDEMANN WERNER
IPC: F28D21/00
Filed: 1979-09-27
Abstract: The heat exchanger is esp. for the recovery of heat from flue gases of central heating plants. It has an inlet and outlet for the flue gas, and an inlet and outlet for pref. heating water of the central heating system. At least one exhaust gas connector is positioned eccentrically on the heat exchanger, and is adjustable. Both connectors may be adjustable, esp. rotatable about the central axis of the heat exchanger. The exchanger housing is circular, the connectors being on the end faces, and pref. on rotatable and lockable covers. The heat exchanger jacket is double-skinned, and has an inlet and outlet for heating water.
Patent DE-2944131-A1 (DE)
Title: Band scale measurement rule with cassette and motor - has scale cursor and swivel mounting with angle meter
Inventor: STRACKE HELMUT
IPC: G01D13/10
Filed: 1979-11-02
Abstract: The band scale measurement rule suitable for educational and industrial applications combines the sitributts of and performs the functions previously requiring both a rule and a geo-triangle and several calculators. It contains a scale band (1a) which can have any scale printed on it. The scale band is driven either manually or by a motor (2) and has a cassette (3) into which it rolls up. The tape or band may be marked with a distance scale and the rule carries a measurement cursor and centre line marker slide pieces. The rule has a mounting section with an angle meter. It is able to rotate about a pivot point with a clamp screw. There is a knob enabling the tape or band to be slid for adjustment.
Patent DE-2946649-A1 (DE)
Title: High quality reproduction technique for paper or textile printing - scanning half-tone images and graduation data retained in electronic image memory
Inventor: WELLENDORF KLAUS DIPL ING DR
IPC: H04N1/387
Filed: 1979-11-19
Abstract: The imaging system, for printing plate mfr., uses a number of half-tone images, each obtained from the original, which are scanned electronically, simultaneous with the scanning of the graduation information held in an electronic image store. A larger number of recording beams is used for recording the half-tone raster points than for the graduation reproduction. Pref. the control information for selective control of each recording beam for each scanning point is obtained by comparing the stored data for this point with that for the surrounding points.
Patent DE-3000429-A1 (DE)
Title: Single handed work stage fitting system for ladders - involves sliding carrier arm on socket swivelling on shaft linking support lugs
Inventor: KENK ERHARD
IPC: E06C7/16
Filed: 1980-01-08
Abstract: The system uses bent support lugs (4), laid on one or two rungs (2) and partially embracing the stringers (5). The shaft (6) connecting them is fitted with a swivelling socket (9) with a displaceable carrier arm (11). The open end of the arm may bear a two-part height-adjustable support. The shaft may have an extension with a pluggable rod, bearing a socket containing a telescopic cross rod at its top end. The system facilitates quick, easy, and secure platform mounting on ordinary ladders. The platforms may be set up single-handed and using readily transportable components.
Patent DE-3001930-A1 (DE)
Title: Strewing agent for ice and snow covered road or path - consists of slag granules from smelting, avoiding polluting
Inventor: FRIEDRICH GERHARD
IPC: C09K3/18
Filed: 1980-01-19
Abstract: Strewing agent for slippery ice- and snow-covered paths and roads consists of slag granules obtd. in the smelting process. Granules obtd. in desulphurisation, based on soda, are pref. Environmental pollution is reduced considerably compared with the use of salt contg. Cl. If alkaline slag is used, thawing is effected without the formation of harmful acids and there is no damage to the road surface. The slag pref. contains ca. 70% dead fraction and 30% magnetic fraction. The upper particle size of the granules is 5 mm. Max. 15% thawing agent, e.g. salt etc., and be added.
Patent DE-3006498-A1 (DE)
Title: Force release of falsely engaged telephone exchange equipment - using search programme to interrogate associated equipment storage and release if not call held by processor working store
Inventor: BARTHOLOMAE HENRIK ING GRAD
IPC: H04Q3/54
Filed: 1980-02-21
Abstract: The system scans the store and checks busied storage compartments against the address code for calls in progress through the exchange. Any of these held and unrelated to calls in progress are force released so that the switch block equipment or peripheral equipment is force released at the same time. The method is partic. suitable for PABX central processor type exchanges. The search cycle to check the stores is only initiated if all stores are found to be busy during a call setup or if a long period of time has elapsed since a particular command has been used. The first call attempt through the exchange may fail due to busy storage compartments so the search programme is initiated to free falsely held ones so that the second attempt will succeed. The compartments in the working store are allocated to the control of the various exchange equipments used for call connection. The search programme involves forward and backward counting through the store.
Patent DE-3015957-A1 (DE)
Title: Two stage concn. and purificn. of sulphuric acid contg. organic cpds. - by vacuum evapn. and nitric acid treatment in heat exchangers of optimum material
Inventor: VOLLMUELLER HELMUT DIPL ING
IPC: B01J19/02
Filed: 1980-04-25
Abstract: In the concn. and purificn. of 20-60 wt.% H2SO4 contg. organic impurities, the acid is first conc. under vacuum to 60-80 wt.% in a rotary evaporator with heat exchange surfaces of glass, graphite or enamelled steel. The acid is then heated to 150-250 deg. C at normal or higher pressure in a second heating appts. with heat exchange surfaces of Ta, Ta-plated steel or Si cast iron, and treated at this temp. with HNO3, without altering the concn., until the organic impurities are (partly) decomposed. The appts. is also specified. The process is esp. suitable for H2SO4 from the prodn. of aromatic intermediates. Both stages can be operated continuously. Since concn. is carried out at relatively low temp. and oxidn. at high temp. in different pts. of the appts., different materials with optimum properties for the purpose can be employed.
Patent DE-3016281-A1 (DE)
Title: Live organic material drying plant - heats material while in intermediate storage area
Inventor: STOCKINGER JOSEF
IPC: B02B1/08
Filed: 1980-04-28
Abstract: The drying method is for live organic material delivered in particles, partic. grains of corn, the material being temporarily stored in an intermediate area and then transferred to a storage area for final drying. The material is heated while in the intermediate storage area, typically by hot air passed through it, or by the exhaust from an engine driving a harvesting machine. The hot air can be used for final drying, its flow being assisted by a blower fan driven directly by the engine or via a tractor power take-off. The cooling air for the engine can also be used for heating, mixed if necessary with the engine exhaust.
Patent DE-3019598-A1 (DE)
Title: Razor blade sharpener assembly - has endless stropping belt driven by rollers along flat surface, and has fixture holding blade to inner belt surface
Inventor: HASSE DIETRICH
IPC: B24B21/00
Filed: 1980-05-22
Abstract: The razor blade (9) sharpener comprises at least one endless stropping belt (1) which is arranged around two rollers (3) and has its outer surface roughened, ribbed (2) or the like. Thus the belt can be driven by rolling the assembly along a flat surface. Fixtures (6) are provided to secure the blades pref. with their cutting edges in contact with the inner surface of the belt. The position of the fixtures may be adjustable. One of the rollers may be adjustable to tension the belt. One roller may be formed as, or coupled to, a flywheel.
Patent DE-3025686-A1 (DE)
Title: Length measurement on difference scale maps - using measurement wheel probe producing pulses for control with scale programming
Inventor: WASNER HERBERT
IPC: G01B7/02
Filed: 1980-07-07
Abstract: It consists of a counter unit (1) connected to a pulse generator probe (10) with a contact measurement wheel (12). The two units are made to operate together. They may be adjusted for different scales and measurement is performed by rolling the wheel along the measurement path on the map. The scaling is programmed in the counter. Pulses to be counted are fed to the counter via a cable (13) connecting the probe to the counter. The measurement wheel operates a switch via a cam and pin to trigger the generation of pulses corresp. to wheel rotation and leave distance covered.
Patent DE-3032109-A1 (DE)
Inventor: HAMPE ANDREAS DR ING
IPC: F24J3/08
Filed: 1980-08-22
Abstract: The device comprises verti-cal heat exchange elements and at least one horizontal collector located close to the ground surface for transporting the heat conveyor fluid from the heat exchanger element to a heat user. Means for the reintroduction of heat in the ground, arranged at the vicinity of the earth surface, include a collector (3, 5) which has only a small thermal transmission resistance with respect to the earth (1) close to the surface. Switching members (18) may be actuated to cause a pump (7) to transport the heat conveyor fluid through the collector (3, 5) and the heat exchange element (2), even when the heat utilization means are disconnected.
Patent DE-3036514-A1 (DE)
Title: Electronic flash control for camera - has partial IR filter for fill-in flash preventing invisible light reaching photocell and causing underexposure
Inventor: DANIELS STEVEN DAVID
IPC: G03B7/16
Filed: 1980-09-27
Abstract: An electronic flash control has an IR filter swung over the photocell for normal flash exposures and a second filter, with partial IR blocking, used when the flash is used for fill-in exposures in daylight. The two filters enable accurate exposures to be taken over a wide range of illuminations, avoiding under-exposure due to i.r. light being reflected from, e.g. leaves in the shady area brightened by the flash unit. The filter position is selected automatically by the level of light intensity, with the position of the flash-gun monitored by a fail-safe interlock. This prevents flash exposure if the flash gun is not in the ready position.
Patent DE-3040110-A1 (DE)
Title: Regenerative heat utilisation equipment - has absorber inside translucent housing with fan connected to heat energy sources
Inventor: FATH JAKOB
IPC: F24J2/00
Filed: 1980-10-24
Abstract: The regenerative heat utilisation equipment has an air-water or brine-water heat-pump circuit. It has an absorber exposed to the ambient air, with a stack or bundle of heat-exchange elements spaced apart, between which the ambient air flows. The absorber (13) is mounted inside a translucent housing (12) with air inlet (21) and outlet (22) ports. This contains a fan (31) producing a draught with a speed of 3 to 5 metres per second. The absorber can be connected to a source of heat energy. The inlet and outlet ports can be in a straight line in the housing, and the fan can be on the pressure side in front of the absorber.
Patent DE-3043608-A1 (DE)
Inventor: HABENSTEIN KLAUS DIPL CHEM DR
IPC: G01N33/52
Filed: 1980-11-19
Abstract: 1. An analytical means for the detection of ingredients of aqueous or water-containing fluids by chromatographic methods, comprising at least two fluid-absorbing zones which are in mutual contact and of which at least one is composed of a chromatographically active material and another serves as a fluid reservoir, and a carrier which is two-dimensional or has the form of a hollow body and stabilizes this arrangement, wherein the zone serving as a fluid reservoir is composed of a hydrophilic swellable polymer which, if appropriate, can contain chemicals or other substances necessary for the test.
Patent DE-3043810-A1 (DE)
Title: Monitoring ink supply in ink printer - using metallic sensor changing magnetic field induced by ring coil
Inventor: DIETRICH KLAUS DR RER NAT
IPC: B41J2/175
Filed: 1980-11-20
Abstract: The monitor operates practically independently of external influences and provides a continuous exact indication. A magnetic field is produced in the ink in the container by a ring coil (4) encircling the container (3). A sensor (5) changes position according to the level in the ink container. The change in sensor position causes a cange in the magnetic field which is used as a monitoring criterion for the ink supply. The sensor, which is placed in the upper section of a flexible ink container, may be of metal. It may be of a material whose relative permeability differs from unity, e.g. of ferrite material. The ring coil may form part of an oscillator circuit.
Patent DE-3048052-A1 (DE)
Title: Expresso coffee machine filling two cups simultaneously - feeds coffee to identical discharge pipes from common collection chamber in discharge line
Inventor: NAUTA WILHELM DIPL ING
IPC: A47J31/22
Filed: 1980-12-19
Abstract: The coffee machine has two discharge pipes (48,50) for the prepared coffee, which is divided between them so that two cups (52,54) can be filled simultaneously. The discharge line (26,30,36) incorporates a collection chamber (36) with two identical outlet openings (44,46) in its opposing sides, each communicating with one of the discharge pipes (48,50). Each outlet opening (44,46) is V shaped and widens out towards the top. Pref. the inlet opening (34) to the collection chamber (36) positioned at the top has a central transverse partition plate (38) lying along the line of flow, its bottom edge tapering to a point. The machine is for the catering trade to provide uniform cups of coffee.
Patent DE-3048411-A1 (DE)
Title: Spur gear drive for turbo-engine testing - has separate gears for coupled drive wheels enabling high power operation
Inventor: SIGG HANS
IPC: F16H1/20
Filed: 1980-12-22
Abstract: One drive wheel (20) is connected to a further drive wheel (33) via an intermediate wheel (40) that engages both. It is developed from similar devices at low cost to enable a specific high power to be transferred. This is achieved without reducing the safety margins of the intermediate wheel against tooth fracture below requirements and without exceeding max. permissible heating. The intermediate wheel has two axially adjacent gear sets (43,43') separated by an annular slot (44). One gear set (43) is connected to the first drive wheel only and the other set (43') to the second drive wheel (43') only. The drive wheels are offset by the gear width of one of them. The intermediate wheel is as wide or wider than the sum of the drive wheel widths.
Patent DE-3108751-A1 (DE)
Title: Process and catalyst for afterburning waste products
Inventor: FREUDENBERG WERNER DR ING
IPC: B01D53/86
Filed: 1981-03-07
Abstract: The invention relates to the catalytic afterburning of the waste products produced in paraffin oxidation. The aim of the invention is the elimination of the odour pollution of the environment by waste products of paraffin oxidation with simultaneous exploitation of the waste heat. According to the invention this is achieved by passing the waste gas over a catalyst combination composed of a noble metal catalyst or diluted noble metal catalyst and non-noble metal oxide catalyst.