baber/WOPTO huggingface dataset:
Patent DE-2939839-A1 (DE)
Inventor: KUEBBELER HANS-KLAUS DIPL CHEM
IPC: C07C51/54
Filed: 1979-10-02
Abstract: The invention relates to an improved process for making acetic anhydride by reacting methyl acetate and/or dimethylether with carbon monoxide under practically anhydrous conditions, at temperatures of 350 to 575 K., under pressures of 1 to 300 bars, and in the presence of a catalyst system containing noble metals belonging to group VIII of the periodic system of the elements, or compounds thereof, iodine and/or its compounds, and an aliphatic carboxylic acid having 1 to 8 carbon atoms. The improved process is effected in the presence of a catalyst system containing, as additional ingredients, a heterocyclic aromatic compound, in which at least one hetero atom is a quaternary nitrogen atom, or a quaternary organophosphorus compound, and a zirconium compound being soluble in the reaction mixture.
Patent DE-2946566-A1 (DE)
Title: Electrical defrosting device for refrigeration appts. - has rigid sleeve enclosing junction between supply lead and heating cable to increase robustness
Inventor: RADERMACHER WILLI
IPC: H05B3/06
Filed: 1979-11-17
Abstract: The device comprises a heating cable (1) with a resilient outer sleeve (4) enclosing a conductive wire heating coil (5) and a supply lead (2) for the heating cable (1). The heating coil (5) has an insulated return conductor (6) and a rigid metal sleeve (10) encloses the connection between the conductors (8,9;5,6) of the supply lead (2) and the heating cable (1). The rigid metal sleeve (10) fits over the ends of the supply lead and the heating cable (1) and it is surrounded by a rubber outer sheath (13) extending beyond both ends to form a seal around the supply lead (2) and the heating cable (1). Pref. the mating conductor (8,6;9,5) of the supply lead (2) and the heating cable are joined at axially offset points within the rigid metal sleeve (10).
Patent DE-2947833-A1 (DE)
Title: Wiping interval control circuit for windscreen wiper motor - has interval network with decoupling diode and capacitor in series and connected to trigger stage input
Inventor: HUELSMANN ULRICH
IPC: B60S1/48
Filed: 1979-11-28
Abstract: The wiping and washing interval control circuit is for a motor vehicle's wiper motor connected on one side to the reference voltage of the bodywork voltage source and connectable on the other side to a stabilised supply voltage via a switching stage. A parking position switch is provided to excite the switching stage until the park position of the motor has been reached. An electronic circuit is assigned to control the switching stage. This electronic circuit contains a trigger stage (IC) having a switch-over threshold. The trigger input (2/6) is connected on one side to the stabilised voltage supply (15) and on the other side to a multi-switch (U) via a time-dependent network with coupling points (15b,85). The multi-switch has at least two interval contacts (m3,m4) and its middle contact (M) is connected to earth.
Patent DE-2948176-A1 (DE)
Title: Mfg. compost by decomposing organic waste in mechanised silo - which conveyor and compacts with min. wear of moving parts
Inventor: NEMETZ HERBERT
IPC: C05F17/02
Filed: 1979-11-30
Abstract: Process and mechanised silo is for decomposing and/or drying organic waste material. The silo is of the type which is supplied with waste in bulk. The waste is advanced through a silo reaction chamber for aeration, deaeration heating, etc., being retained for a period necessary for decomposition, generally about 10 days in all. The reaction chamber is now formed as a tunnel. Equal batches of waste are introduced at regular intervals at one end of the tunnel. Each batch in turn is advanced further into the tunnel to make room for the next batch. The newly introduced batch pushes preceding batches as it advanced, the compacted, unified mass sliding on its base along the floor of the tunnel. Equal batches of processed compost are periodically discharged at the outlet end of the tunnel. Two or more tunnels can be superimposed, a gravity transfer of periodic batches taking place from the upper to the lower tunnel. Used for drying and/or decomposition of organic waste partic. for the mfr. of compost. The cycle can be arranged to ensure complete decomposition. The necessary conveying and compacting motions are effected with min. mechanical effort. Wear on moving parts is reduced to a min. Optimum use is made of oxygen.
Patent DE-2949079-A1 (DE)
Title: Child's sledge with full height backrest seat - which is releasably secured, with seat usable as child's safety seat in motor vehicle
Inventor: KRAMPITZ HORST
IPC: B62B17/06
Filed: 1979-12-06
Abstract: The child's sledge (1) comprises a seat, whose backrest (3) extends the full height of the child and is releasably secured (4,5) to the skid assembly. The seat may be used as a child's safety seat in a motorcar. The sledge may be provided with a squab (2) shaped to fit the underside of the seat or may itself be shaped to fit a standard car safety seat.
Patent DE-2950892-A1 (DE)
Title: Multiple digital telegraphic data channels in one speech channel - employing time multiplexing and use of single digital transmitters and receivers
Inventor: SCHALLER WOLFGANG DR ING
IPC: H04L5/06
Filed: 1979-12-18
Abstract: The application is to telegraphic alternating current digital signal transmission. The object is to require less equipment in order to achieve the necessary encoding and decoding. A single transmitter and receiver are used with time division multiplexing and digital filtering based on the algorithm of the fast Fourier transform. In a typical receiver, the incoming analog signal is applied to a low pass filter and then converted into a digital signal. In the following stage the digital filtering is carried out, and subsequently the individual channels formed by the time division multiplexing circuit. The transmitter unit operates in a similar manner but in reverse order.
Patent DE-2951394-A1 (DE)
Title: Slitting of plastic foil in rolls - by spraying liquefied gas in saw cut made by circular cutter blade
Inventor: ENZINGER HANS-JOACHIM
IPC: B23D59/02
Filed: 1979-12-20
Abstract: Plastic foil which has been mfd. in wide strips and has been wound to large rolls is cut into narrow tapes by resting the roll on two revolving rollers. Liquefied gas at a low temp. is sprayed against the roll at the point where a circular saw performs a cut and continues to be sprayed in the gap produced as cutting proceeds. Two rollers revolve in the same direction and cause the roll of plastic foil to rotate in a direction opposite to the circular raw blade which is driven by a motor. A guard plate supports a pipe for liquefied gas which emerges at a nozzle and follows the deepening saw cut. An exhaust funnel collects the plastic shavings. The lowtemp. makes the plastic brittle and easy to cut so that the life of the cutting tool is lengthened. It also prevents the layers from sticking together. The time for unwinding and rewinding is saved.
Patent DE-3006514-A1 (DE)
Title: End-closures fixing in aluminium hollow-extrusions - uses elastic force stored in rim during insertion for cutting wall-recess
Inventor: LEISTRITZ HANS KARL DR
IPC: F01N13/18
Filed: 1980-02-21
Abstract: The arrangement for fixing end-closures in aluminium hollow extrusions is basically as in 2927679, a domed closure (2) with axial slots (5) around the rim. These are shaped to match the extrusion bore but slightly larger than this being inserted with elastic compression of the rim. However instead of there being a preformed recess in the extrusion wall (1) into which the insert-rim springs, the recess is generated by rotating the insert about its axis. A jig ensures correct final location, produces the rotation and supplements the insert elastically in cutting into the wall.
Patent DE-3007840-A1 (DE)
Title: Single frame copier for cine film - has hinged film holder and flash exposed, self-processing film holder using existing film editor
Inventor: KRETSCHMER HUMBERT
IPC: G03B17/52
Filed: 1980-02-29
Abstract: The single frame copier attachment for a cine viewer/editor has a hinged plate (8) to press the relevant part of the cine film onto an exposure plate, from where the image is projected onto a self processing film pack (13) in the base of the attachment. The exposure is through electronic flash (4) directed at the film via an angled mirror (6). The flash provides a rapid exposure without danger of thermal damage to the cine film. The film pack is linked to a servo-drive (15) to operate the processing rollers. The operator views the film in the editor (1) which stands on the attachment. When a particular frame is reached and marked, the film loop is taken out of the gate and inserted between the exposure plates. The self-processing film holder provides a rapid print.
Patent DE-3023286-A1 (DE)
Title: Multiple round socket - has spring washers for pressing flange of core against lip of holder screwed onto component
Inventor: SCHAEFER DIETER ING GRAD
IPC: H01R13/74
Filed: 1980-06-21
Abstract: The socket has a flanged core (5) carrying pins or socket holes and is mounted on a component (1) by means of a holder (8). The holder has a flange (8b) with holes for screws (9) that fix it to the component. The holder has an overhanging lip (8c) that engages behind the flange (7) of the core and prevents it moving axially outwards. The holes for the screws contain rubber inlays (13) through which the screws pass. A cavity is left inside the holder between the core's flange and the component. The cavity contains a stack of toroidal diaphragm springs (11) or spring washers. A ring (10) closes the component-end of the cavity.
Patent DE-3025559-A1 (DE)
Title: 2-Carboxy:phenyl-5-phenyl:imino-1,3,4-thiazolidine derivs. - plant growth regulants prepd. by acid-catalysed cyclisation of 1-carboxy:phenyl-4-phenyl-thiazolidine derivs.
Inventor: KIRKPATRICK JOEL LEE
IPC: G03B21/46
Filed: 1980-07-05
Abstract: New 2-(2-carboxy-phenyl)-5-phenylimino -1,3,4-thiadiazolidine derivs. are of formula (I) (where R1 is H or 1-4 substituents selected from Cl, lower alkyl and lower alkoxy, R2 is H, lower alkyl, lower alkoxyalkyl, lower alkenyl, lower haloalkyl, or an agriculturally acceptable cation; R3 is H, lower alkyl, lower alkenyl, lower alkynyl, lower haloalkyl or benzyl; and R4 is H or one or more substituents selected from F, Cl, Br, CF3, lower alkyl and lower alkoxy). Depending on the rate of application and the species to which the cpds. are applied, (I) are plant growth regulants. Effects that can be obtained include promotion of tillering in oats and certain other grasses, increasing of fruit-set, and eradication of Digitaria sanguinalis (crabgrass).
Patent DE-3028436-A1 (DE)
Title: Mobile inhalator - with automatic pump linking small boiler to large liquid storage tank
Inventor: BLUTHARDT HEINZ
IPC: A61M11/04
Filed: 1980-07-26
Abstract: An inhalator on a movable stand consists of an electrically heated liquid-filled boiler and a vapour distributor with atomizing nozzles. The boiler is connected through a pump to a separate liquid storage tank. On reaching a max. liquid level in the boiler the pump is automatically cut off and when a min. level is reached, it is automatically cut in. The volume of the storage tank is a multiple of the boiler volume. The boiler is hinged and kept in position by a spring. When its weight corresponds to a max. liquid level, it tips and actuates a microswitch to cut off the pump. The pump is re-started when a min. liquid level is reached. The boiler can thus be designed small and is heated up quickly. The liquid in the storage tank ensures that no frequent replenishing is necessary for long periods.
Patent DE-3028653-A1 (DE)
Title: Toy train control system - has low and medium frequency range extending below and above limiting frequency
IPC: A63H19/24
Filed: 1980-07-29
Abstract: The toy train system has electrically driven vehicles and stationary accessories such as signals and points. The power is transmitted to the locomotive engines for various frequency ranges. The low frequency range extends beneath the limiting frequency for the engines, and the middle frequency range extends over the limiting frequency of the engine. Both energy carriers are inter-related in time so that the sum of both components is constant at any point.
Patent DE-3038610-A1 (DE)
Title: Layer-type capacitors made from rolled alternate layers - of metallised and non-metallised plastics foil cut into capacitor lengths
Inventor: PETRICK PAUL DR
IPC: H01G4/30
Filed: 1980-10-13
Abstract: Laminated capacitors are made from a basic laminated capacitor prepared on a large diameter drum by winding, then cutting into sections. The basic capacitor is prepared from a plastics foil with parallel, metallized strips on both faces, the gaps between the strips on one face being opposite to the centres of the strips on the opposite face, and from an unmetallized plastics foil in strips of slightly smaller width than the mesh of the individual capacitors; these two foils, the unmetallized and the metallized, are wound in alternating layers onto the drum, with the gaps between the non-metallized foil being centrally disposed between those of the adjacent metallized foils. The finished laminated structure is then cut as above to form individual capacitors. Preferably, the non-metallized plastics foil strips are narrower by 0.1-2 mm than the metallized strips. The packets, after cutting, are pref. sprayed with metal on both cut faces. Preferred materials for the plastics foils include polyester, polycarbonate, polypropylene and polysulphone.
Patent DE-3039429-A1 (DE)
Title: Multiphase travelling field motor - has incomplete or no magnetic short circuit, with excitation coil concentrated at motor ends
Inventor: ZELLER THOMAS
IPC: H02K41/02
Filed: 1980-10-18
Abstract: The travelling field motor has either a flat surface, i.e. of a linear motor type or a curved surface, e.g. a sector motor type. It is intended for transportation or movement of electrically conductive or magnetic bodies. Its design is without a magnetic short circuit part The excitation coil of the travelling field motor is concentrated at the ends. The end slots for retaining the concentrated coil are pref. enlarged compared with remaining slots. The motor may be fitted with devices for improved cooling. The end slots may be exposed to higher current density with a correspondingly intensified cooling. The motor may be energised via inverters or current intensifier. The slots may be of any arbitrary arcuated or articulated shape.
Patent DE-3042013-A1 (DE)
Title: Tow-bar with ball joint - has swivel head to enable coupling to inclined vehicle
Inventor: KRIEG SEN PAUL
IPC: B60D1/14
Filed: 1980-11-07
Abstract: The towbar is made from at least two sections secured by cross-bolts (6) and has one end with a forked swivel head (3) to clamp to the tow coupling. The swivel prevents torsion damage to the tow-bar when towing over rough ground. The swivel head also allows coupling to the towing eyes fitted to the chassis of most vehicles, providing the tow-bar does not foul the bumper.
Patent DE-3048841-A1 (DE)
Title: Water fluoridation system - passing artesian well water through sterilisation and fluoride metering stations before bottling
Inventor: EIFLER OTTO
IPC: C02F1/68
Filed: 1980-12-23
Abstract: Non carbonated water from Artesian wells is passed through a sterilisation station and a fluorizidation station where dissolved fluorine cpds. are added under pressure and mixed uniformly in a pipe of certain length. The preferred final fluoride content is held to between 1.0 and 1.5 mg per litre. The bottled water is held at a precise fluoride content so that the risk, induced by fluoride tablets, of under- or overmedication, is eliminated. It ensures to the population freedom from dental caries.
Patent DE-3101959-A1 (DE)
Title: Ratchet mechanism
Inventor: ZOELL DIETER
IPC: F16H27/06
Filed: 1981-01-22
Abstract: The invention relates to a ratchet mechanism with a hydrodynamic indexing aid and a hydrostatic control part for the production of rotation and dwell phases, the driving wheel having at least one concentric cylindrical part which, to produce at least one dwell phase, engages in at least one hollow-cylindrical part connected rigidly to the driven wheel and situated in a position such that it is concave relative to the said wheel. One or more radial holes communicating with the central supply hole are formed on one side in the corresponding hollow-cylindrical parts to construct the hydrodynamic indexing aid, and the edges of the hydrostatic control part, which are fed from the shaft centre via radial holes, are let in in an azimuthal direction on the other side.
Patent DE-3110005-A1 (DE)
Title: Plug socket with child protection
Inventor: LEHMANN HELGA
IPC: H01R13/703
Filed: 1981-03-11
Abstract: In order to protect children against the hazards of plug sockets which are at mains voltage, a push-button switch (23) is provided in the plug socket, for operation via an operating means (22). <IMAGE>
Patent DE-3111437-A1 (DE)
Title: Centrifugal mixer
Inventor: KROEMMELBEIN KLAUS HORST DIPL
IPC: B04B7/02
Filed: 1981-03-24
Abstract: In a clamping frame (vice) (7) which is drivable about a horizontal axis, two clamping plates (15, 16), which between them can accommodate a container (17), can be displaced in opposite directions. The one clamping plate (15) is driven so as to perform a rotary movement about the longitudinal axis of the container. The other clamping plate (16) is supported on a swivel arm (32) and can be swung out almost completely from the mixer housing. In the swung-in position, the swivel arm (32) is locked into position and centred on a bearing block (12) which is displaceable in the clamping frame (7). <IMAGE>
Patent DE-3111888-A1 (DE)
Title: PCM device
Inventor: SANDER LOTHAR DR
IPC: F28D20/02
Filed: 1981-03-26
Abstract: In a PCM device which is heated by a solar collector, having a PCM medium whose phase-change temperature is at the desired feed temperature of a useful heating circuit, the utilisation of the thermal energy provided by the solar collector is to be improved. For this purpose, in addition to the first PCM medium at least one second PCM medium is provided in the store (7). The phase-change temperatures of the PCM medium or the further PCM media are staggered below the phase-change temperature of the first PCM medium. <IMAGE>
Patent DE-3112107-A1 (DE)
Title: Thermoelectric disc generators for solar mirrors
Inventor: ENZIAN EDWIN DIPL ING
IPC: H01L35/32
Filed: 1981-03-27
Abstract: Individual generators already known as thermopiles, connected in series and equipped with disc-type limbs are adapted as generator rods for installation in the focal line of parabolic solar mirrors. The only partial irradiation of the circular circumference necessitates suppression of interfering thermal currents by omitting spokes (32, 33, 34) in the case of only one limb, whereas the counterlimb constructed as a circular sheet-metal disc with concentric elongated-hole perforations and their offset connecting bridges have the elasticity necessary to absorb the radial tensions occurring in various limb materials. The mounting of a second, downstream generator rod with a special cooling circuit in producing the solar mirror is proposed for the recooling of the heat medium necessary after it has been heated up in the generator rod. <IMAGE>
Patent DE-3114748-A1 (DE)
Title: Mascara brush
Inventor: KARL GEORG
IPC: A46D1/00
Filed: 1981-04-11
Abstract: Mascara brush with a handle and an application part arranged on its front end, comprising a central carrier with radial projections in the form of encircling discs, the application part being a one-piece part made of foam or soft plastic with encircling grooves incorporated therein. <IMAGE>
Patent DE-3124738-A1 (DE)
Inventor: PIEPHO RALF F
IPC: C02F9/00
Filed: 1981-06-24
Abstract: 1. Transportable device for the treatment of used emulsions, solutions, industrial effluents and the like with a reaction vessel with a turbine mixer to create flocculations and precipitates, with a downcomer and a fleece-covered belt filter underneath it, under which a filtrate container is arranged, as well as compression rollers placed at the output end of the belt filter, characterized by the fact that at least two reaction vessels connected in series (4, 11) are provided to form flocculations and precipitates with turbine mixers (5, 5') contained therein, in such a way that only one dosing apparatus (6) feeds the first reaction vessel (4) with a chemical separating agent to form flocculations and precipitates, that the apparatus is so designed that the liquid to be treated flows through all the reaction vessels (4, 11) and flows into settling tanks (20, 15, 22, 61) in which reaction product and liquid separate from one another, and a continuous circulating belt (38) removes precipitates and flocculations from the settling tanks, and that a pipe is provided for overflow, passing from the settling tank (15) to the belt filter (28), which, with two troughs placed one behind the other (41, 41', or 68, 71) is provided for the separate filtration of liquid and precipitate or flocculation.
Patent DE-3128291-A1 (DE)
Title: Process for the spinning of staple fibres
Inventor: MERKL JAKOB
IPC: D01H1/00
Filed: 1981-07-17
Abstract: The invention relates to a process and an apparatus for the spinning of staple fibres, in which a set of worsted cards produces a fibrous web which is divided by web dividers into web slivers compacted in a rubbing gear to form roving threads. According to the invention, the storage of the roving threads takes place in cans, from which they can subsequently be fed to drafting units of spinning machines.
Patent DE-3129998-A1 (DE)
Inventor: VAGT PETER
IPC: G01M7/00
Filed: 1981-07-29
Abstract: Method of non-destructively determining response pressure of a reversible rupture disc which includes: measuring resonance frequencies of lower vibration modes of the reversible rupture disc at varying measuring pressures below the response pressure of the reversible rupture disc; and extrapolating from the resonance frequencies of each of the vibration modes as a function of the measuring pressure, that pressure at which the resonance frequency of the respective vibration mode becomes zero, the lowest pressure at which one of the vibration modes would have zero resonance frequency being the lowest response pressure of the reversible rupture disc; and apparatus for performing the method.
Patent DE-3139136-A1 (DE)
Title: Device for determining the frequency of alternating electrical quantities, particularly of a rotating-field machine
Inventor: BLASCHKE FELIX DIPL ING DR
IPC: H02P21/00
Filed: 1981-10-01
Abstract: An angle ( alpha ) can be allocated to two alternating quantities (a1, a2) by means of the relation                       a1 DIVIDED a2=ctg alpha A quantity (w) corresponding to the change of this angle with time (frequency) is to be determined. For this purpose, the alternating quantity (a1) is connected to a first multiplier (M1) and the alternating quantity (a2) and the change of the alternating quantity (a1) with time is connected to a second multiplier (M2) and the quantity (w) is picked up at a following subtracting circuit (3). The frequency can be obtained directly if the alternating quantities are in each case connected to a squaring circuit (12, 13), the outputs of the squaring circuit are added together and the quantity (w) is divided by this sum. <IMAGE>