baber/WOPTO huggingface dataset:
Patent DE-4121409-A1 (DE)
Title: Di:methyl sulphate prodn. from di:methyl ether and sulphur tri:oxide - using safe simple plant connected to combustion plant with flue gas desulphurisation
Inventor: GRAHN EBERHARD DR
IPC: C07C303/24
Filed: 1991-06-28
Abstract: In the prodn. of dimethyl sulphate (I) from dimethyl ether (II) and SO3, liq. (II) is dosed into a highly turbulent mixt. of (I) and S03 in a tubular reactor and immediately dispersed finely in the reaction mixt.. The heat of reaction is removed to ensure almost complete conversion in the circulating system; the (I)-S03 mixt. is kept below its b.pt. at the end of the cooling zone; and the waste gas is passed to a cumbustion plant with flue gas desulphurisation. (II) is pref. dosed into the (I)-S03 mixt. under a pressure of at least 1, pref. 3-6 bar and in amts. regulated by the density of the reaction mixt. at the inlet of the vessel. The waste gas is passed to the rotary calciner of a gypsum-H2SO4 plant. It is introduced into the burner zone or pref. into the suction zone of the coal dust firing injector. Both the discharge pipe from the (I) plant to the gypsum-H2S04 plant and opt. of the (I) plant are kept slightly below atmospheric pressure. USE/ADVANTAGE - High productivity is attained in relatively simple appts. and the waste gas is destroyed harmlessely. A high safety standard can be achievey t
Patent DE-4129472-A1 (DE)
Title: Holder device for door frame - has bracing with ends moved and fixed in position by connection element, braced against each other
Inventor: KLIMACH HORST
IPC: E04F21/00
Filed: 1991-09-05
Abstract: The holder device consists of a bracing, which can be extended in longitudinal direction to a desired length, and fixed. Contact elements at opposite ends of the bracing extend in a transverse direction at a defined angle to the longitudinal direction. The element engage on both side members of the frame. Each end (20) may be moved into various positions in transverse direction (52), and fixed in these positions. This is carried out by a first connection element (46), held on the end, and a second connection element (54), held on the contact element (22). One element is tensioned against two bracing points (80) on the other end. USE/ADVANTAGE - The holder device can be adjusted to all types of door frames, and in any situation on a building site.
Patent DE-4132245-A1 (DE)
Inventor: GAWLICK DIETER DIPL ING
IPC: B60T11/224
Filed: 1991-09-27
Abstract: In a two-step valve, in particular a brake valve, the effective cross-sections of two cross-sectional stages come into effect in succession. First of all, the larger effective cross-section is used for the filling of a system. After a transitional phase, only the smaller effective cross-section is then used for applying the working pressure. Arranged between the pressure space (84) of the larger effective cross-section and a reservoir (62) is a non-return valve (50) which opens at a predeterminable limiting pressure prevailing in the pressure space (84) of the larger effective cross-section. In order to keep the required actuating force for the valve small and to avoid an abrupt change in the working pressure, in particular during the traversing of the transitional phase, the closing force of the non-return valve (50) corresponding to the predeterminable limiting pressure is controllable as a function of the working pressure. For this purpose, the working pressure acts on a control spool (18) which influences the closing force of the non-return valve (50) in such a way that the said force decreases with increasing working pressure. The non-return valve has a valve element (50) which, given sufficient pressure in the pressure space (84) with the larger effective cross-section, rises from an associated seat (54) counter to the force of a non-return valve spring (46) and frees a passage to the reservoir (62). 
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Patent DE-4140640-A1 (DE)
Title: Copper@ recovery from discarded circuit boards - uses mixt. of organic acid and halogenated hydrocarbon(s) for sepn. and recovery
Inventor: DAMMER HANS DIPL ING
IPC: H05K3/22
Filed: 1991-12-10
Abstract: To recover copper from damaged circuit boards, which are to be discarded, the circuit boards are treated by a mixture of at least one organic acid in a water soln. and a halogenised hydrocarbon in a homogeneous phase until the copper is mechanically sepd. from the carrier. The solids are sepd. from the mixt., and the separated solids are further sepd. into copper and circuit board particles. The solids, sepd. from the liq.-mixt., are washed and dried before further sepn. into copper and circuit board particles through a cyclone separator or projection conveyor. The solids are separated from the mixt. by the addn. of further halogenised hydrocarbons for a phase sepn., and both fluid phases are sepd. ADVANTAGE - The method gives a simple operation to recover copper from circuit boards
Patent DE-4200185-A1 (DE)
Title: Continuous semiconductor single crystal pulling - by periodic material addition to crucible and removal from bar outside the chamber
Inventor: STEIN KARL-ULRICH DR ING
IPC: C30B15/00
Filed: 1992-01-07
Abstract: Semiconductor crystal bar is pulled in a crucible single crystal growth process featuring a continuous process. At regular intervals, the upper part of the bar is separated. The upper part of the bar (KS) is pref. cooled actively (KE), using coolant circulating through tubes or using liq. evaporation. The bar is held by provisions Ha which can be a system of, pref. at least 2, clamps or a number of rollers at a right angle to the pull direction (ZR). The level of liquid in the crucible is pref. restored periodically when the level has reached a min. through filling via a system NV. The parts of the bar which have been grown when the melt level was low are held separately from other parts cut off the bar. Equipment in which the process is carried out is also claimed. In a chamber (Gh) a crucible (ST) contains the molten semiconductor (e.g. Si) which is maintained at a constant temp., through heaters (Hz). The crucible can rotate and be moved vertically to adjust for the melt level. The bar (KS) formed is pulled upwards (ZR) through a system of holders (Ha). New material is added through a system NV. An operation TV cuts parts off the bar outside the chamber. The bar is actively cooled by a method KE.
Patent DE-4207916-A1 (DE)
Title: Interconnecting aluminium@ metallisation layers in semiconductor integrated circuit - involves forming barrier layer on first aluminium@ layer and sequence of titanium@ layer, barrier layer and aluminium@ layer as second metallisation
Inventor: HARADA SHIGERU
IPC: H01L23/522
Filed: 1992-03-12
Abstract: Interconnecton of Al metallisation layers uses via-holes etched in an insulating layer sepg. them. A Ti-Al intermetallic cpd. is formed between the 1st and 2nd Al-layer by depositing on top of the underlaying Al-layer (4), pref. contg. Si, a layer (312) of a high m.pt. metal, cpd. with a high m.pt. metal, high m.pt. silicide or amorphous Si, and the layer is etched into the required pattern. The layer (4, 312) is covered with an insulating layer (5) and a via-hole (6), pref. with a ratio of depth to dia. of not more than 1 and etched. A Ti-layer (101), pref. 5-15 nm thick, is then deposited, followed by a Ti-cpd. layer (102), pref. Ti-nitride with a resistivity of 250-400 micro-ohm.cm and 50-100 nm thick, and the next Al-layer (103). The via-hole etching pref. comprises insulator etching and sputter etching of the surface of the metallisation layer. The contacts are annealed, pref. for 15-60 mins. at 300-450 deg. C to initiate the reaction forming the Ti-Al intermetallic cpd. USE/ADVANTAGE - The top-layer on the underlying Al layer reduces the thickness of a contamination layer formed during via-etching which has to be removed by Ar-sputtering. The Ti first layer of the top metallisation is reactive and can getter the contamination left or redeposited without reducing the contact reliability and resistance. The second layer (Ti-cpd.) is a barrier to prevent the first layer being consumed by reaction with the Al deposited as part of the top layer. The contacts have reduced resistance, improved reliability and improved resistance to electromigration. The process is used in the mfr. of DRAMs.
Patent DE-4208285-A1 (DE)
Title: Electric cable wall entrance seal e.g. for switchgear or cabinet - includes plastic sleeve surrounding cable sheath and locally crimped on to inserted helical support winding
Inventor: MAIER ENGELBERT
IPC: H02G15/013
Filed: 1992-03-14
Abstract: The cable (7) is led into the cabinet, box or equipment (1) through a connection flange (2) having an inner circumferential groove (3) of suitable size for the rim of an annular seal (4) around the connector (10). A crimpable plastic sleeve (6) is fitted over the cable with one end pushed into the flange and crimped on to a supporting thread (8). In the crimped condition the sleeve seals the cable tightly on all sides. The seal (4) may surrounded by a rubber ring. USE/ADVANTAGE - Esp. for cables of large cross-section; easily fitted seal is adaptable to different requirements of connected equipment.
Patent DE-4208660-A1 (DE)
Title: Mains-powered unit for l.v. lamp built into ceiling - includes two portions both dimensioned to be passed through circular lamp installation aperture into ceiling space
Inventor: HALEMEIER ECKARD
IPC: F21V23/00
Filed: 1992-03-18
Abstract: In a false ceiling (12) a circular opening (16) for the installation of the lamp (18) is compatible in size with both portions (22,24) of a power unit converting the voltage on a mains cable (32) to the lower value required by the lamp. The first portion (22) introduced into the space (14) under the true ceiling contains e.g. an electronic frequency changer which feeds the prim. side of a transformer in the second portion (24). The latter is pushed together with the other portion along the false ceiling towards the mains connector (30). USE/ADVANTAGE - For use with e.g. 12 V or 24 V halogen lamps; the voltage dropping unit can be retrofitted into the ceiling space through the opening already made for the lamp.
Patent DE-4224365-A1 (DE)
Inventor: HOVESTADT WIELAND DR
IPC: C08F220/28
Filed: 1992-07-23
Abstract: A process for the preparation of polyhydroxyl compounds by free-radical-initiated polymerisation of   a) a mixture of olefinically unsaturated monomers which contain at least 1% by weight of alcoholic hydroxyl-containing monomers, b) cyclic compounds which can react in the sense of a ring-opening polymerisation reaction in the presence of alcoholic hydroxyl-containing compounds as initiator, in the presence of   c) polyhydric alcohols, the polyhydroxyl compounds obtained by this process, and their use, optionally in a form which has been at least partially transesterified by means of alkyl acetoacetates, as a binder component in one- or two-component paints (surface coatings, lacquers, varnishes, enamels).
Patent DE-4227609-A1 (DE)
Inventor: SCHUETT DIETER PROF DR
IPC: E04H6/42
Filed: 1992-08-20
Abstract: The mechanical arrangement of the invention for space-saving vehicle parking has at least one entry and exit (EA) and a plurality of parking spaces (EP) and there is a plurality of side-by-side, sideways movable stacking trucks (SW), each of which is designed in such a way that a plurality of pairs of adjacent pallets (PL) to take parked vehicles is arranged on it one above the other. A lifting passage (HGS) can be created between any two stacking trucks (SW) by moving said trucks sideways. A lift truck (HW) can travel to this lifting passage and take individual pallets (PL) from or place them on a stacking truck (SW) beside the lifting passage (HGS). This lift truck (HW) can lift any pallet (PL) to the level of at least one entry or exit (EA).
Patent DE-4230592-A1 (DE)
Title: Microelectronic sensor module for measuring control and regulating circuits - has analogue and digital multiplexers, voltage- and capacitance-frequency converters arranged in one region, and sensor layout arranged in other region
Inventor: AHLERS HORST DR ING HABIL
IPC: G08C15/12
Filed: 1992-09-12
Abstract: The sensor module has a semiconductor chip supporting a number of sensors and a microelectronic circuit with at least one analogue multiplexer (2), a digital multiplexer (3), a voltage/frequency converter (4) and a capacitance frequency converter (5). Double bonding pads are provided between the sensor layout area of the chip and the area provided with the microelectronic layout. Pref. the outputs of the analogue multiplexer are coupled to the inputs of the digital multiplexer via the voltage/frequency converter and the capacitance/frequency converter. ADVANTAGE - Simple modification of both sensor layout and microelectronic circuit for different customer-specific applications.
Patent DE-4233371-A1 (DE)
Title: Measuring flow of waste water through non-siphoned waste water pipe - operating magnetic=inductive sensor with motorised choke dependent on water level in upstream chamber or channel
Inventor: FAHRNER HEINZ ING GRAD
IPC: E03F7/00
Filed: 1992-10-05
Abstract: The waste water pipe has a measurement section whose throughput is measured with pref. a magnetic-inductive flow meter (MID). A motorised choke (9) downstream of the flow meter can be varied and closed off. The water level is sensed in a chamber or channel upstream of the waste water pipe and the choke is controlled during a first operating mode so that a characteristic flow rate is not exceeded. During a second operating mode, the choke is controlled so that it is closed when the water level and/or the flow rate reaches a lower limit. Measurements are then restarted after the water level reaches a second level and/or after expiry of a time delay. USE/ADVANTAGE - For use in waste water systems. Accurate measurement over entire flow rate range.
Patent DE-4234948-A1 (DE)
Title: Cutting tool for extracting machines - has nozzle unit with lower sieve sealingly fitted in bit pocket and has water supplied through two part supply canal
Inventor: KOMOTZKI MICHAEL
IPC: E21C35/187
Filed: 1992-10-16
Abstract: The nozzle insert (5) is formed as one piece and is sealingly fitted in the hole (12) of the bit pocket (14), having two ring seals (10,11). The insert has a semi circular or circular sieve (14) which protrudes into the lower part of the accommodating hole. The water from the water supply canal (6) has a spirally forward movement toward the nozzle. The recessed part (8) of the insert has a greater outer diameter than the rest of the part. The water supply canal is of two parts, one running in the longitudinal direction of the insert and the other (15) feeding tangentially into the first. ADVANTAGE - The relative movement between the bit head and the bit pocket cannot lead to any damage or disturbance to the nozzle insert.
Patent DE-4235323-A1 (DE)
Title: Aq. binders for anticorrosion coating materials - contain organo-polysiloxane resins, mono-organo-silanolate(s) or condensn. prods., and water
Inventor: PAUL KLAUS-PETER DIPL CHEM DR
IPC: C09D5/10
Filed: 1992-10-20
Abstract: Aq. binders (A) contain (a) organopolysiloxane resins, (b) mono-organo-silanolates and/or condensation prods. obtd. by cleavage of water, and (c) water. Prodn. of binders (A) comprises mixing aq. emulsions of (a) with aq. solns. of (b). Also claimed are (a) aq. binder compsns. (B) contg. binder (A), metal powder, opt. SiO2 with BET surface at least 50 m2/g (opt. waterproofed) and opt. water, and (b) a process for the prodn. of (B), by mixing the above components and opt. other substances. Resin (a) contains units of formula R4SiO(4-a)/2 (I) contg. 0-10 wt.% Si-bonded OH and/or alkoxy gps., and (b) has the formula R1Si(OM)m(OH)3-m (II); where R = 1-18C hydrocarbyl; a = 0,1,2 or 3 (average 1-1.5), R1 = 1-8C hydrocarbyl; M = alkali metal or ammonium cation; m = 0.1-3 (whole no. or fraction). Metal powder in (B) is Zn dust with mean particle size 2-9 microns. (B) contains 100 pts.wt. binder, 10-1500 pts.wt. metal powder, 0-5 pts.wt. SiO2 as above and 0-300 pts.wt. water. USE/ADVANTAGE - Used in 1- or 2-component corrosion-proofing coatings and primers for applications requiring thermal stability up to 420 deg.C, e.g. for coating tankers, bridges, offshore oil rigs, etc. Binders are for room temp.-curing, water-based coating compsns. for metal surfaces, with good anti-corrosion properties.
Patent DE-4235591-A1 (DE)
Title: Bio filter has horizontal substrate with downflow of organically polluted air - through sprinkler-moistened microorganisms, cleans air polluted by organic aerosol(s)
Inventor: NISI DIETER DIPL ING
IPC: B01D53/84
Filed: 1992-10-22
Abstract: A biofilter to clean organically polluted air incorporates a horizontal air-permeable filter substrate arranged parallel to gravitational force as a supporting medium for bioactive microorganisms; that the filter substrate is a loose pile of soft fine particles such as wood cuttings, sawdust, cork, foam granulate or fibres supported by an air-permeable base; that the microorganisms in the filter substrate are held moist by a water sprinkler. USE/ADVANTAGE - The filter cleans air polluted by organic aerosols. The filter substrate remains effective for a long time and the biological cleaning of the effluent air is more effective.
Patent DE-4236666-A1 (DE)
Title: Image recording system using video camera - has partially transmissive mirror and connects picture reproducing systems in audio visual communication system
Inventor: GARCIA-VICTORIA CARLOS
IPC: H04N7/14
Filed: 1992-10-30
Abstract: The partially transmissive mirror (5) is positioned in-front of the taking lens (8) and at an angle to the optical axis. The subject to be recorded is reflected by the mirror (5) to the lens (8). The mirror (5) is connected in a housing (4) with both the front (9) and back (10) having a viewing aperture (11,12) allowing the user to see through from one side to the other. The mirror (5) is arranged near the apertures (11,12) at an angle to the viewing direction (14). The reflective surface (15) of the mirror (5) is, according to the angle, adjacent the front aperture (11) or a reverse mirror (6). The aperture and housing dimensions are smaller than the image surface (1). USE/ADVANTAGE - Esp. for use in image reproducing systems in video telephone or multi-medium terminals. Provides parallax free reception and transmission at low cost and volume and allows use of bigger picture surfaces.
Patent DE-4237343-A1 (DE)
Title: Permanent excitation electric generator with adjustable output voltage - has two-part stator with coils in series and one stator half rotatable over width of magnet pole
Inventor: DITTNER ADAM
IPC: H02K21/00
Filed: 1992-11-05
Abstract: The multi-phase generator consists of a rotor with permanent magnets, and a coil carrying stator. The latter consists of two identical halves (6,7) with coils (8,9) in series. One stator half (6) is rotatable w.r.t. the other one (7), pref. over the width of a magnet pole. Thus the generated sinusoidal output voltage is adjustable over zero and max. voltage, dependent on speed. Pref. the mutual stator half rotation is contactless and carried out by a magnetic servo-drive (10). One stator half (7) may be fixed in a housing. Pref. forty poles are uniformly distributed over the rotor periphery. USE/ADVANTAGE - For vehicle voltage or current generators, with rapid matching to the consumer appliance current or voltage requirements.
Patent DE-4239169-A1 (DE)
Inventor: POETSCH EIKE DR
IPC: C07C255/49
Filed: 1992-11-21
Abstract: The invention relates to methylene cyclobutane-benzole derivatives of formula (I) in which R<1>, A<1>, Z<1>, L<1>, L<2>, m, V, W, Y and n have the meanings given in claim 1, and their use as components of liquid crystal media for electro-optical displays.
Patent DE-4239201-A1 (DE)
Title: Determination of wt. of moving mass - using sensor loaded with mass to be weighed and reference sensor arranged near first sensor and loaded with selected reference mass
Inventor: FEMBOECK JOSEF
IPC: G01G23/00
Filed: 1992-11-21
Abstract: The reference mass-reference sensor (2) system carries out the same movement as the system of the mass-sensor (1). The actual wt. of the mass to be weighed is determined from the measurement signals of the sensor (1) and the reference sensor (2). Identically constructed measurement pick-ups are used for the sensor (1) and the reference sensor (2). The pick-ups used as sensors, respectively deliver electrical measurement signals. These signals are respectively amplified (3,4) and supplied to a microcontroller (6) across an ADC (5). USE/ADVANTAGE - Determining amt. of rubbish generated at each household. Conventional sensors can be used. Unit for carrying out method is robust and simple to handle.
Patent DE-4300321-A1 (DE)
Title: Prepn. of oligo:glycerol ether sulphate from fatty alcohol oligo:glycerol ether
Inventor: FABRY BERND DR
IPC: C07C305/04
Filed: 1993-01-08
Abstract: Oligoglycerol ether sulphates (I) obtd. by reacting fatty alcohol oligoglycerol ethers of formula R10-(CH2-CH(OH)-CH20)nH (II) with a sulphating agent, followed by neutralising are claimed. In (II), R1 is 6-22C aliphatic hydrocarbon gp. with 0-3, C=C bonds; and n is 1.5-10).Universal washing powders, liq. cleaning and disinfecting compsns. hair shampoos and rinses and bath foams contain 10-30 wt. % of (I), and the usual additives. A liq. universal washing compsn. contains 10-70% of (I) and the usual additives. Liq. delicate washing compsns. manual dishwashing compsns. and clear rinses contain 10-50% of (I) and the usual additives.
Patent DE-4307946-A1 (DE)
Title: Microwave discharge lamp with TM-mode cavity - has discharge tube located within cavity with reflectors and wall having slots coupling to waveguide unit.
Inventor: SIMPSON JAMES E
IPC: H05B41/24
Filed: 1993-03-12
Abstract: The microwave supplied lamp has a tube (2) within a discharge cavity (1) at the point of highest field strength. The presence of the tube changes the field within the space. The central region (3) of the lower wall is formed by a wire mesh (3). A waveguide (4) is coupled to the space and has a slot shaped coupling aperture (5). The waveguide can also be located on the top surface. The discharge tube is made of quartz and has reflectors (8, 8') on both sides. The end of the unit has a location provided for a magnetron unit (6), supplying the lamp with energy. USE/ADVANTAGE - For incoherent optical radiation. Covers wide wave-band, from ultraviolet to visible or infrared range. Provides uniform discharge along wave-band. Lamp is uniformly excitable.
Patent DE-4308942-A1 (DE)
Title: Passage of a supply or discharge pipe through a wall opening
Inventor: BANKO HORST ING
IPC: F16L5/10
Filed: 1993-03-19
Abstract: Passage of a supply or discharge pipe through a wall opening has outer flange pressing outer seal axially against basin wall and radially against outer wall of pipe with second inner seal set inside opening.
Patent DE-4309254-A1 (DE)
Title: Continuous casting mould
Inventor: SCHOLZ HEINRICH
IPC: B22D11/04
Filed: 1993-03-23
Abstract: In a continuous casting mould (1), the mould cavity is formed by narrow side walls (2) and broad side walls with mould plates (3) which consist essentially of copper and are provided with inserts (6). To increase the life of the mould and obtain an optimum cooling action, highly stressed areas of the mould plates (3) are provided with replaceable inserts (6) which consist of a plurality of cooled strips (7) consisting essentially of copper. <IMAGE>