baber/WOPTO huggingface dataset:
Patent DE-2633000-A1 (DE)
Title: Interference suppression circuit for stereo car radios - has gating circuit connected between demodulator and decoder stages
Inventor: BUSSE WOLFGANG DR
IPC: H03G3/34
Filed: 1976-07-22
Abstract: The stereo radio receiver interfrence suppression circuit consists of a band-pass filter on the output of the FM demodulator. The filter output is fed to a bi-phase rectifier circuit and to a different amplifier. The rectifier output is also taken to a transistor operating as a threshold detector to set the sensitivity of the blanking circuit. The output of this transistor is fed to one input of a comparator. The second input of the comparator is supplied from the first differential amplifier. The output of the suppression circuit is taken to a gating stage between the receiver demodulator and the stereo decoder. The circuit is designed for use in car radios to suppress ignition interference.
Patent DE-2640962-A1 (DE)
Title: Tuner for radio receiver in vehicle - has transducer responding to tuner knob movement to desensitise receiver during tuning
Inventor: HOERMANN BERNT-OTTO DIPL ING
IPC: H03G3/34
Filed: 1976-09-11
Abstract: The tuner, for a radio receiver in a vehicle, has a device (8), that automatically desensitise the input of the receiver or switches an attenuator (5) between the antenna and the receiver or causes attenuation in the HF part of the receiver. The device consists of a transducer (9) that produces a switching signal during each change in the receiver's oscillator frequency. The transducer responds to movement of the tuning knob (11). The switching signal is delayed (10) by a given amount. The device can be switched off:.
Patent DE-2641772-A1 (DE)
Title: Throughflow or current measuring instrument - has time-difference measuring instrument detecting oscillator pulses and further pulses
Inventor: SATO TOMOMI DIPL ING
IPC: G01F1/66
Filed: 1976-09-14
Abstract: The time-difference measuring instrument has associated with it a monitoring circuit with several comparator circuit parts connected to an amplifier receiving the further electrical pulses. The amplifier and the time-difference measuring instrument are controlled so that a signal corresponding to the time difference is generated only when amplifier output pulses formed from the further pulses are at a height with a given range. The further pulses are produced from acoustic or optical pulses sent obliquely through the flow and derived from the oscillator arrangement.
Patent DE-2642814-A1 (DE)
Title: (4,5)-Benzospiro-(2,4)-heptane-carboxylate esters - used as pesticides, esp. insecticides and acaricides
Inventor: FAROOQ SALEEM DR
IPC: A01N53/10
Filed: 1976-09-23
Abstract: derivs. of formula (I) are new (where R1 and R2 are H or together form a C-C bond; R3-R5 are H, halogen or 1-4C alkyl).
Patent DE-2651020-A1 (DE)
Title: Valve cartridge for hydraulic system valve - has actuating plunger passing with play through system to control valve
Inventor: AMLING FRIEDEL
IPC: F16K39/02
Filed: 1976-11-09
Abstract: The valve cartridge is used for hydraulic water system exposed to dirt in operation. Cartridge has slider with valve closing element actuated against the spring restoring force. The valve closing element moves axially in the cylindrical cartridge housing. The latter has a valve seat at one end and the other end enclosed a pressure compensation chamber. The actuating plunger which can move relative to the slider to a limited extent, passes through a throttle with a load connection with appreciable play. It can be connected at the end to a spring loaded control valve of small nominal size. The latter is held in the valve closing element and connected with the pressure chamber.
Patent DE-2702886-A1 (DE)
Title: Continuous fabric cleaning process - comprising first stage using cleaning intensifier followed by a dwell-zone before rising
IPC: D06B9/00
Filed: 1977-01-25
Abstract: In the continuous cleaning of piece goods, the fabric is passed through a cleaning fluid contg. a solvent and a cleaning intensifier and water. In the first stage of the cleaning process the ratio of each litre of fluid per kg of fabric is less than 1:2 in the fluid applied to the material. The fabric then dwells for at least one minute before it is rinsed through with a solvent. The process is economical in the use of a cleaning intensifier so that costs are reduced while still giving an effective cleaning action.
Patent DE-2705485-A1 (DE)
Title: Wet scrubber with elastically deformable work elements - whose fluid induced deformations remove incrustations
Inventor: HOELTER HEINZ
IPC: B01D47/02
Filed: 1977-02-10
Abstract: A wet scrubber for gases comprises a column provided with elastically deformable components, e.g., spray nozzles and gas/liq. mixing and distributing elements. Used for purificn. of industrial gases. The elastic deformation leads to removal of incrustations formed by the gas impurities, e.g., calcium sulphate and sulphite.
Patent DE-2710149-A1 (DE)
Title: Lightweight aggregate for mfg. concrete - in which aggregate is made using inexpensive waste sand obtd. from gravel works
Inventor: HACKENBERG WOLFGANG
IPC: C04B18/02
Filed: 1977-03-09
Abstract: Aggregate for lightweight concrete, consists of hardened and crushed porous mortar. The main constituent of the mortar is surplus, unused sand obtd. from gravel or pebble mfr. in a gravel works. This sand is mixed with cement, water, and materials forming air pores, then cast into blocks. After hardening, the blocks are crushed to the desired grain sizes. The blocks are pref. cast into moulds; hardened; and the moulds are then removed and the blocks crushed in a rebound- or impact mill to obtain the aggregate. The aggregate may also be sieved into suitable fractions before use in the concrete. Used e.g. in lightweight concrete with thermal-insulating properties, used in buildings. The surplus sand is a low cost waste material, which is readily obtd. without high transport costs; the sand may even be obtd. from gravel works no longer in prodn.
Patent DE-2714874-A1 (DE)
Title: Multi-channel remote control unit for TV receivers - has coded keyboards fitted on upper and reverse sides
Inventor: KELLER HANS DIPL ING
IPC: H01H9/02
Filed: 1977-04-02
Abstract: The multi-channel remote control unit is esp. for domestic television and entertainment equipment. It consists of a rectangular case divided into two sections. One end section (2) contains the ultrasonic or infra-red transmitter and battery, the other section houses the operating controls, i.e. a keyboard (3). The controller is fitted with two keyboards, one on the upper side and another on the underside of the hand-held unit. The keys on one side can be of different shape or profile and a different colour from the keys on the reverse side to avoid confusion between the respective operating functions. A raised lip around the edge of the case prevents the keys on the underside being inadvertently operated when the unit is laid down on a surface. Automatic switching of the carrier frequencies can be efected via a position-dependent switch.
Patent DE-2725199-A1 (DE)
Title: Dispersing calcium carbonate in water at high pH - by addn. of an organic phosphonate and an amino organic phosphonate
Inventor: DAVIS PHILIP S
IPC: C02F5/14
Filed: 1977-06-03
Abstract: Dispersion of CaCO3 in an aq. system at a pH 9 comprises adding to the system an effective amt. of (i) an organic phosphonate (MO)2-PO-R1-PO-(MO)2 in which R1 = 1-3C alkyl gp. opt. substd. by OH and/or 1-3C alkyl, and M = water soluble cation; and (ii) an amino-organic phosphonate contg. the gp. >N-CH2-PO3M2, esp. a cpd. (R3)(R4)N-CN2-PO-(OM)2 in which R3 = H or -CH3-PO3M2 and R4 = -CH2-PO3M2 if R3 = -CH2-PO3M2 or R4 = -(-(CH2)n-N)m-(PO3M2)2 if R3 = H; m = 1-3 and n = 1-6. Generally the phosphonate cpds. are added at 0.5-500 ppm to the water at a pH of 10-14, with a wt. ratio phosphonates (i):(ii) = 1:6 to 6:1. The phosphonate mixts. are esp. useful for keeping CaCO3 in suspension in aq. systems at high pH, and esp. to prevent scale formation and encrusting e.g. of appts. used in papermaking and wood pulp mfr., esp. the evaporators used for black liquor and wood pulp digestion units used in the Kraft process, etc.
Patent DE-2732168-A1 (DE)
Title: Extinction fluid pellets in candles - introduced by pusher ram on extrusion tube with automatic control
Inventor: THIELE HEINZ
IPC: C11C5/00
Filed: 1977-07-14
Abstract: Self-extinguishing candle has a quantity of an extinguishing fluid arranged near its wick not far from the base. This fluid is introduced either as a deep frozen pellet or as a plastic ampulla. In the first case the temp. is chosen low enough not to melt the pellet during the mfg. processes. In the latter case the plastic is such that it melts under the effect of the candle flame. Process prevents damage by a candle burning down to a stump. The portions of fluid can be applied simply and are applicable even to pressed and extruded cables.
Patent DE-2744974-A1 (DE)
Title: Exposure control for two element shutter - has monitoring levers for film speed marking and flash fitting and avoids need for manual correction
Inventor: SIMON HORST
IPC: G03B7/00
Filed: 1977-10-06
Abstract: The compact camera has a two part shutter with which different exposure times are set. The setting lever (6) has several arms to operate on different exposure factor, with one arm (6c) monitoring the film speed marking (7a) on the cassette (7) while another arm (6c) monitors any fitted flash gun. The camera operates with automatic exposure over a wide range of conditions without the user having to provide manual correction.
Patent DE-2749383-A1 (DE)
Title: Broken glass fibre joining - by water jet severing droplet and blowing fibre towards deflection pulley
Inventor: SCHLACHTER FREDO
IPC: C03B37/03
Filed: 1977-11-04
Abstract: Glass fibres which have broken in a continuous filament fibre drawing process are joined up before the fibre strand leaves the machine by directing the droplets formed by a conical funnel to a point where a water jet severs the droplets. The filament is directed towards a first deflection pulley and joins the strand of fibres. It is drawn out to the right thickness before it leaves at a second deflection pulley. The arrangement saves special joining drums for broken fibres which are expensive, wear rapidly and demand much maintenance.
Patent DE-2753983-A1 (DE)
Title: Insecticidal 4-pyridyl or 4-quinolyl carbamate derivs. - prepd. by reacting 4-hydroxy cpd. with carbamoyl halide using ammonia as hydrogen halide acceptor
Inventor: KNORR HARALD DIPL CHEM DR
IPC: C07D215/22
Filed: 1977-12-03
Abstract: In the prodn. of 4-pyridyl carbamates of formula (I) by reaction of a 4-pyridone of formula (IIa) or its tautomer (IIb) with a halide of formula (III) in the presence of a hydrogen halide acceptor at elevated temp., ammonia is used as the hydrogen halide acceptor and the reaction is carried out at 80-150, pref. 90-110 degrees C: Hal-CO-NR5R6 (III) In the formula R1 is H, 1-3C alkyl or phenyl; R2 is H or 1-3C alkyl; R3 is H and R4 is H or 1-3C alkyl, or R3+R4 = -CHA-CHB-CHC-CH2- in which A and C are H, 1-3C alkyl, 1-3C alkoxy or F, B is H or CF3, and the C-atom carrying A is attached to the 2-position of the pyridine ring; R5 and R6 are CH3 or C2H5; and Hal is Cl or Br. (I) are systemically active insecticides (cf. DT2361438).
Patent DE-2758795-A1 (DE)
Title: Cycle with pedal crank device producing constant force - has rollers mounted on cranks to engage slots in L-shaped cam plates mounting transmission ratio control links
Inventor: BROWN LAWRENCE G
IPC: B62M1/24
Filed: 1977-12-29
Abstract: A pedal crank mechanism has a shaft (52) driving a device which converts the cyclically varying force produced by the pedal crank mechanism to constant force which is applied to transmission means for driving the rear wheel of the cycle. A roller (60) is mounted on each crank (22) at a distance from the shaft (52). The roller (60) engages a slot (66) in an L-shaped cam plate (62) pivoted on axis (64) to the cycle frame. Rotation of the pedal crank (22) results in oscillation of the plate (62). To vary the transmission ratio, the position of a link (82) on the plate (62) is controlled by a cable (88) and hand lever (86). The link (82) is connected by rods (88, 90) to pinions (92, 94) engaged by an endless chain (100) engaging the rear wheel pinion (98). The transmission ratio is varied by operating a catch (106) by hand lever (108).
Patent DE-2802372-A1 (DE)
Title: Flexure girder for composite steel and timber structure - uses steel plugs, end supports and suspension brackets to rigidify structure
Inventor: BORSDORF HEINZ DIPL ING
IPC: E04B1/26
Filed: 1978-01-20
Abstract: The composite wood and steel construction system has form-locking flexure girders passing through. Less rigid cross-sections are consolidated with steel plugs or plates and bending pressure elements have contact surfaces for the introduction of pressure forces. Bottom support brackets and top suspension brackets on the stiffened adjacent girder ends have tension components overlapped by fishplates plugged to the girders. Use is also made of U-shaped cut-out profile girders, two-piece prestressed wooden flexure girders, rectangular anchoring discs, reinforced concrete cross-sections enclosed in profile steel and three-dimensional lattice bar systems.
Patent DE-2808550-A1 (DE)
Title: Bag supporting strip conveyor - has two parallel endless toothed belts synchronised by gearbox
Inventor: SCHERZ WILHELM
IPC: B65B43/12
Filed: 1978-02-28
Abstract: The conveyor is for the supporting strip of a string of bags, with two parallel endless belts having two adjacent runs securing the strip positively between them and running in the same direction. The belts are toothed and are synchronised by a gearbox. One of the belts can have behind its working run a thrust body forming an elastic support for the teeth from behind. A strip-type slide portion is supported from a bracket fixed to the machine frame by a strip of rubber or similar elastic material.
Patent DE-2818973-A1 (DE)
Title: Long life miniature warning lamp - uses LED and special resistance under transparent cover for reduced output in sunlight
Inventor: GRUBE WINFRIED DIPL PHYS
IPC: F21Y115/10
Filed: 1978-04-28
Abstract: The long lasting miniature lamp powered by two small batteries (1) is suitable for placing on a gravestone. The bulb (3) which is mounted in series with a special resistance (2) and the batteries, is a light emitting diode (LED) and its full output is not used. The resistance is a ceramic cold conducting device with a Curie temperature between zero and 40 deg.C. The bulb and resistance are mounted on a plate (5) and enclosed by a dome shaped transparent cover (8) so that the output of the bulb is reduced when sun shines on the cover, and the resistance becomes warm. The LED and resistance can be enclosed inside an externally threaded sleeve which can be screwed into a bulb holder. The bulb may give a red light.
Patent DE-2819109-A1 (DE)
Title: Signboard fastening device with hoop and clamp - has board carrier and clamp for fastening to masts with metal strip (NL 31.10.79)
Inventor: ORTH KURT
IPC: G09F7/20
Filed: 1978-04-29
Abstract: The signboard fastening device clamp (4) consists of a piece of hoop iron joined to the board carrier (3). It has two bent legs which possess openings for pulling through the metal strip and has central cut-outs at the ends. The centre piece of the clamp is designed with bent regions on the margin side which grip round the board carrier. This board carrier has a series of holes to receive a connecting screw to the clamp.
Patent DE-2819687-A1 (DE)
Title: Vehicle steering vibration balancing device - operates with wheels unloaded and measures imbalances in hubs, drums, discs etc.
Inventor: MAURER KURT
IPC: G01M1/28
Filed: 1978-05-05
Abstract: A steering vibration balancing device enables measurements to be made with the wheels unloaded. The car is jacked such that the wheel to be balanced is completely free. The device is attached to the steering. The device has both battery and mains supplies, containins a measurement instrument indicating the required wt., and uses a flashing light to determine the wt position. It is applicable to any vehicle, and measures the vibrations in hubs, drums and discs etc., rather than just in wheels and tyres.
Patent DE-2820016-A1 (DE)
Title: Remote controlled vehicle wheel grip assistance system - includes rotating grip track directed under wheels from under vehicle
Inventor: HANDL ALFONS
IPC: B60B39/00
Filed: 1978-05-08
Abstract: The remotely operated wheel slip preventing system for a vehicle acts in the main of snow chains. The built-in system has a special holder under the middle of the car and extending a servo arm (13) to position the grip aid under the wheel when required. The grip aid has rotating elastic strips which provide the grip between the wheels and the road. The system is operated from the dashboard and requires no fitting at the roadside. It does not damage the road surface.
Patent DE-2821691-A1 (DE)
Title: Lock indicator for steered wheels - has electronic or mechanical sensor on steering column and indicator on dashboard
Inventor: BUNCAK PAVEL DIPL ING CHEM
IPC: B62D15/02
Filed: 1978-05-18
Abstract: The steering column (1) is fitted with a monitor to determine the amount the column has been turned in either direction, and to operate a simple indicator in the view of the driver, above the steering wheel. The sensor can be mechanical or electronic, while the coupling to the indicator can be either. The system can be retrofitted to any vehicle and gives the driver clear indication of the direction the wheels are turned. This is especially useful when leaving tight parking places.
Patent DE-2823052-A1 (DE)
Title: Mounting for measuring probe in smoke pipe - is achieved by sliding probe in guide system held onto pipe and has conical joint to make sealed contact
Inventor: HAGEMANN UWE ING GRAD
IPC: G01D11/30
Filed: 1978-05-26
Abstract: The measuring probe is introduced into a hole in a smoke pipe to measure parameters such as temperature, blackness and amount of carbon dioxide. The prove slides in a guided system to permit accurate positional adjustment. Smoke pipe (10) has a cylindrical measurement hole (11) against edge (15) of which the conical section of the guide (17) maintains sealed contact. The guide has a bore hole (19) in which a measuring probe (20) can slide and is locked by a stop (21) with a locking screw (23). A base (27) with feet (25,26) is held against the pipe by a collar (37) which a rapid action locking element (35). A compression spring (50) maintains the conical joint in sealed contact with the pipe.
Patent DE-2836371-A1 (DE)
Title: Speech intelligibility improvement method for noisy environment - splitting signal into frequency bands whose amplification is differently adjusted
Inventor: PORTSCHT RAINER DR ING
IPC: H03G3/32
Filed: 1978-08-19
Abstract: The technique applies to loudspeaking telephones in noisy rooms. The electric signal allocated to the speech is split before electroacoustical convertion into several frequency bands, and their amplification is differently adjusted in accordance with the intensity and spectral distribution of the noise in the reproduction room, or with a measurable physical variable related to the noise. The control circuit comprises a main control unit (11) interconnected with a coefficient-store (2). There are cross lines with the frequency band amplifier (4), a frequency band amplifier, a terminal unit (6) and a loudspeaker (7).
Patent DE-2838341-A1 (DE)
Title: Fire extinguishing agent container - has rubber vessel fitted inside metal vessel both optionally usable for agent or gas
Inventor: ELLINGHAUSEN HERMANN
IPC: A62C13/76
Filed: 1978-09-02
Abstract: The vessel (1) for an extinguishing agent is made of metal and the vessel (2) is fitted an inside vessel (1) filled with pressurised gas. Inside the metal vessel (1) a screen (3) is fitted at some distance from the inner surface of the vessel (1). The assembly is fitted with an external pressure (4) connected with the internal rubber vessel (2) via a pressure reducing unit. When the shut off valve of the pressure reducing unit is opened pressure gas flows from pressure cylinder (4) into the rubber vessel (2) which expands and forces the extinguishing agent from the metal vessel (1) out of the vessel until the walls of the rubber vessel (2) come to rest against screen body.
Patent DE-2839899-A1 (DE)
Title: Composite layered masonry building block - has reinforcing wire meshes integrated in stoneware slabs enclosing insulating slab
Inventor: BASTECK GERHARD
IPC: E04B2/02
Filed: 1978-09-13
Abstract: A series of rectangular or square stone-type slabs are combined in the composite building elements, esp. masonry building block, with an intervening slab of heat-insulating material form-locked between at least two of them. The stone slabs (3) are reinforced with one or more wire meshes (20). One of these is formed together with a mesh for each of the slabs adjoining the insulating slab (5). This forms a structural entity with a clamp which has its rear side in a plane at right angles to the slabs. All the stone slabs contribute to wall rigidity and there are not continuous mortar bridges.
Patent DE-2850760-A1 (DE)
Title: Rotary piston IC engine - has outer ends of pistons and valves controlled by elliptical track inside combustion chamber
Inventor: KRANEFOER JOHN
IPC: F02B75/26
Filed: 1978-11-23
Abstract: The rotary piston engine (10) has an oval shaped chamber. It has four pistons carried inside a rotating circular block with the outer ends of the pistons guided by a sleeve following the oval contour of the inside of the chamber. The pistons operate in holes in the block, with their axes at right angles to each other. As the block rotates, the pistons reciprocate against the oval chamber. The combustion gases circulate through channels bored through the block, controlled by valves at the inner ends of the pistons, also operated by the oval track.
Patent DE-2854131-A1 (DE)
Title: Plant pot moisture reservoir - consists of buried layer of granular or laminar expanded aluminium silicate
Inventor: HOELTER HEINZ ING GRAD
IPC: A01G7/00
Filed: 1978-12-15
Abstract: Moisture reservoir comprises a layer of granular or plate-like expanded aluminium silicate, pref. of calcium-aluminium silicate. The layer is pref. located below the surface and is impregnated with fertilizers or nutritive salts. The layer may be shipped and installed within a wrapping having at least one surface or moisture-pervious fibrous fleece. A silicate container with a perforated cover and sides may be fitted within a planter and a filler pipe may extend through the soil in to the container. Granular silicate may be mixed with the soil.
Patent DE-2901414-A1 (DE)
Inventor: KAMPS G L L
IPC: B01D46/02
Filed: 1979-01-15
Abstract: In a gas filter, especially a room air filter (1) comprising a rectangular frame (2), a replaceable filter pack (4) which includes a filter web (7) arranged in zig-zag fashion to form a plurality of filter pockets disposed in side-by-side relationship which is mounted between peripheral walls is adapted to be received within the frame by a supporting grid structure (3) which is mounted within the frame and shaped to match the plies of the filter web. 
<??>In order to provide a gas filter which is easy to handle and whose filter pack can also be transported without causing any trouble even, when it is in contaminated condition all peripheral walls (8, 9, 10 and 11) of the filter pack are stiff and jointly define a rigid container, the gas inlet opening (13) of this container being adapted to be closed by folding and bending marginal portions (R) of the peripheral walls (8, 9, 10 and 11) adjacent to this opening, and plies (21) provided adjacent the gas outlet opening (14) are held by tensioning means (22) which extend in the direction of the plies and are anchored to opposed peripheral walls (8, 10).