baber/WOPTO huggingface dataset:
Patent DE-3940428-A1 (DE)
Title: Removing thiophene from benzene - by adsorption on pentasil-type zeolite, pref. a ZSM-5 zeolite, followed by heating to recover thiophene
Inventor: WEITKAMP JENS PROF DR
IPC: C07C7/13
Filed: 1989-12-07
Abstract: Process for sepn. of n from benzene comprises adsorption on pentasil-type zeolite (I). More specifically (I) is a zeolite of the ZSM-5 type, pref. with the alkali ions partly or completely replaced by H or Cu(II) ions, or silicalite; the adsorbed thiophene is recovered by heating the thiophen-loaded (I) at up to 250 deg.C, pref. in a stream of inert gas. Pref., the benzene/thiophene mixt. is passed through a column of (I) at room temp.-60 deg.C; as an example, NaZSM-5 has an adsorption capacity of 12-15 mg thiophene/g (I), and 80% of the thiophene can be recovered. USE/ADVANTAGE - The process is useful esp. for the purificn. of coke-oven benzene. (I) has high absorption capacity and good selectivity for thiophene (w.r.t. prior-art zeolite adsorbent) but also enables regeneration of the zeolite without destructive distn. and consequent loss of the adsorbed thiophene.
Patent DE-3940855-A1 (DE)
Title: Auto-cleaning vacuum system - comprises gas permeable membrane for cleaning effluent gases
Inventor: HAUK GERHARD DR ING
IPC: B01D53/22
Filed: 1989-12-11
Abstract: In a vacuum plant incorporating a gas permeable membrane for cleansing effluent gases, gas circulates a number of times. The effluent gas is pressed a number of times as a feed-current through one or several gas-permeable membranes by means of the same vacuum pumps and leaves the module or modules in a cleansed state. USE/ADVANTAGE - This system provides a highly effective means by which emissions from vacuum pumps are avoided in conjunction with low investment costs and minimal requirement of consumables. The sepd. effluent such as organic and halogen-organic gas can be condensed, disposed of, removed or recovered for re-use.
Patent DE-4001708-A1 (DE)
Title: New mono:azo dyestuff cpds., prepn. used in dyeing hydrophobic fibre - which are di:cyano benzene azo acyl allyl cyano-alkyl phenylene di:amine cpds.
Inventor: BUEHLER ULRICH DR
IPC: C09B43/40
Filed: 1990-01-22
Abstract: New monoazo dyestuffs are 4-substd.-2,6-dicyano-benzene (1-azo-4) N-allyl-N-beta- cyanoethyl- or -N-gamma-cyano-propyl-N'-acyl -phenylene-1,3-diamines of formula (I): X = Me, Et, F, Cl, Br, MeO or EtO; R = Me, Et, n-Pr, i-Pr, n-Bu, i-Bu or s-Bu; n = 2 or 3. The claims also cover mixts. contg. 2 or more (I) cpds.. (I) are prepd. by a nucleophilic exchange reaction from the corresp. 2-cyano-6-halo- or 2,6-dihalo-benzene azo cpds. (pref. chloro or esp. bromo cpds.) with the cyanide ion CN(-) as nucleophilic agent.
Patent DE-4006828-A1 (DE)
Title: Use of ester lubricating oils
Inventor: CORNILS BOY PROF DIPL CHEM DR
IPC: C10M105/42
Filed: 1990-03-05
Abstract: Certain esters (I) are used as lubricants for refrigerant compressors operating with Cl-free partially fluorinated hydrocarbon refrigerants. (I) are esters derived from 'dicarboxylic acids and glycols or polyglycols and monocarboxylic acids or monoalcohols' (sic).
Patent DE-4006872-A1 (DE)
Title: Plastic costume jewellery - made by injection moulding two incompatible components to give fibrous surface
Inventor: RIEDERER WINFRIED
IPC: A44C27/00
Filed: 1990-03-05
Abstract: Pieces for fashion jewellery are made by injection moulding two synthetic materials which are chemically incompatiblea and give a rough texture to the exposed surface. The surface can have a woolly, fibrous or laminated appearance or a mixture between them.  Further roughening can be obtained by sand blasting, by abrasion treatment in a drum or by other tools. USE/ADVANTAGE - Gives a plastic item the appearance of a natural material by changing the surface optical properties.
Patent DE-4007989-A1 (DE)
Title: Data modem transversal equaliser coefficient selection system
Inventor: KARI RISTO
IPC: H04L25/03
Filed: 1990-03-13
Abstract: The coefficient selection system uses a defined periodic data sequence with a discrete Fourier transformation transmitted along the transmission channel. The discrete Fourier transformation of the periodic sequence obtained from the transmission channel is calculated. The initial discrete Fourier transformation is combined with a reference spectrum and divided by the calculated discrete Fourier transformation to obtain a ratio which is subjected to an inverse discrete Fourier transformation to calculate the equaliser coefficients. The reference spectrum is selected to obtain a pulse characteristic which decreases rapidly.
Patent DE-4008706-A1 (DE)
Title: Wheel suspension for motor vehicle - uses intermediate carrier plate with projections to reduce machining operations
Inventor: KALTWASSER HELMUT DIPL ING
IPC: B60G7/00
Filed: 1990-03-17
Abstract: The wheel suspension for a motor vehicle has a connecting arm with a wheel carrier (6) and a wheel bearing support (9) screwed to the wheel carrier. A metal carrier plate (8) between the wheel carrier and the bearing support is welded to the wheel carrier. The carrier plate is provided on the side directed towards the bearing support with several projections (17) against which the bearing support lies. ADVANTAGE - Wheel suspension in which the energy consumption required in machining the carrier plate is considerably reduced.
Patent DE-4010832-A1 (DE)
Title: Continuous liquid sampling device for product flow
Inventor: MELZER WERNER DR
IPC: G01N35/08
Filed: 1990-04-04
Abstract: The continuous liquid sampling device (2) for a product flow allows the obtained sample to be conveyed pneumatically to an analysis device (11), using an inert gas as the conveying medium, with subsequent separation of the inert gas from the fluid sample. Pref. the sampling device (2) is coupled to a pipeline system comprising a conveying line (10) leading to the analysis device (11) coupled to a gas line (9) incorporating a gas feed pump (6), with the fluid separator (12) connected directly after the analysis device (11).
Patent DE-4014535-A1 (DE)
Title: Dispensing nozzles for dough prods. - has sidewalls of each nozzle sprung so that nozzle opens out under pressure
Inventor: FOEHL ARTUR
IPC: A21C11/16
Filed: 1990-05-07
Abstract: In dispensing nozzles used with a press to produce dough prods., a number of nozzles are fixed to a plate. The outlet of each nozzle has elastic spring sidewalls. When not under pressure, segments of the sidewall overlap, and pressure opens up the nozzle and reduces the overlaps. ADVANTAGE - Prods. with larger dia. can be produced with smooth outer surface.
Patent DE-4016691-A1 (DE)
Title: Removing workpieces from machine tool - involves receptacle attached to lower end of swinging arm
Inventor: WERNER SIEGFRIED
IPC: B23Q7/04
Filed: 1990-05-23
Abstract: The machine tool, in particular a lathe, has at least one workpiece spindle (2) and/or (3) with an associated work space (4) or (5). It is equipped with a device for removing a finished workpiece, The device consists of a swinging arm (7) which is mounted on an overhead rail (13). The arm (7) has a receptacle (6) at its lower end which receives the workpiece. The arm (7) is then swung sideways so that it is clear of the machine tool and is then moved along the overhead rail (3) in the direction parallel to the machine axis. USE - Machine tools.
Patent DE-4018426-A1 (DE)
Title: Machine for making single sided corrugated cardboard - has pressurised glue reservoir to press cardboard against rollers for corrugation and gluing
Inventor: MOSBURGER HANS
IPC: B31F1/28
Filed: 1990-06-08
Abstract: The machine is for making a single sided corrugated cardboard. The cardboard strip (4) which is to be corrugated is passed between a pair of corrugating rollers (2, 3). As the cardboard passes around the upper corrugating roller, it receives a coating of glue from a roller (7). This roller and a second roller (11) together form a wall which divides the glue reservoir (14) into two compartments (16, 17). The upper compartment is subjected to a high pressure (PI) in order to press the corrugated strip against the corrugating roller (3) until the corrugated strip can be pressed against the plain strip (25), to form the single-sided corrugated cardboard. USE - Production of single sided corrugated cardboard.
Patent DE-4023365-A1 (DE)
Title: Changing gear in automatic motor vehicle gearbox - determining quality of change by measuring engine or gearbox displacement or torque changes on shaft
Inventor: ALTENKIRCH MANFRED DIPL ING
IPC: F16H61/08
Filed: 1990-07-23
Abstract: A method of changing gear in an automatic gear change mechanism involves determining the quality of the change by measuring parameters dependent on changes in torque and adapting switching parameters accordingly for transmission and/or switching element control. The changes in torque can be determined by measuring parameters dependent on engine and/or transmission system displacements or by measuring changes in the revolution rates of shafts, esp. of a transmission output shaft, w.r.t. the gearbox housing. ADVANTAGE - Enables automatic vehicle gear change to be operated more smoothly under changing operating conditions.
Patent DE-4032831-A1 (DE)
Title: Transistor assembly for bipolar integrated semiconductor circuit - has P-conductive zone, surrounding vertical PNP transistor within insulating frame
Inventor: LENZ MICHAEL
IPC: H01L27/082
Filed: 1990-10-16
Abstract: In an n-conductive epitaxial layer (2) on a p-conductive semiconductor substrate (1) an npn transistor (3-5) is formed with a p-conductive insulating frame (7) on an n-conductive buried layer zone. In the insulating frame is formed an enclosed p-conductive zone (10, 11) surrounding the vertical npn transistor. A lateral pnp transistor (4, 5, 10, 11) is formed by the p-conductive zone, the base and collector of the vertical npn transistor. The enclosed p-conductive zone pref. has a contact (12), externally accessible in the integrated semiconductor circuit. The contact may be coupled to the npn transistor emitter (3). ADVANTAGE - Preventing substrate currents in npn transistors of integrated circuits.
Patent DE-4034039-A1 (DE)
Inventor: BESSON RENE
IPC: G04C3/14
Filed: 1990-10-26
Abstract: The device for implementing the method for the automatic initialisation of the date display of a perpetual calendar electronic watch comprising a face fitted with a window and a date disk permits, every time the watch stops, at the moment the electronic circuit is reconnected, the automatic identification of the date appearing in the window, by optically analysing a code attributed to this date and by memorizing this data by means of the electronic circuit. This optical device (10) comprises a source (11) emitting a beam of light (12), reflective surfaces (13) fixed onto the date disk (15) and a receiver (14). The beam (16) reflected by a surface (13) is intercepted by the receiver (14) which supplies a signal to the electronic circuit (17) which controls an electronic motor (18) driving the disk (15) by a system of reduction gears (19, 20).
Patent DE-4037493-A1 (DE)
Title: Covered path pick=up esp. potentiometer - has carriage with device to select defined position on resistance path for automatic positioning adjustment
Inventor: UHLIG GUENTER DIPL ING
IPC: G01D5/165
Filed: 1990-11-26
Abstract: A distance sensor, esp. a potentiometer, has a carrier (6) for a physical parameter memory device, esp. a resistance path, and a carriage (8) movable w.r.t.  the carrier with a device which selects a defined memory device position. The carrier and carriage have interacting carrier drive elements (10-13) near one end. The carrier is moved in the direction of carriage movement after a restraining force produced by slide springs (16-18) has been overcome. USE/ADVANTAGE - Enables automatic position adjustment between memeory device, e.g. resistive track in case of a potentiometer, and carriage. Converting linear movement into electrical or optical signals. Angle coder pref. generating electrical signals, e.g. to indicate throttle flap angle of i.c. engine.
Patent DE-4037683-A1 (DE)
Title: Striker coupling for overcoming adhesion friction - works in spindle gears with power-dependent motor switching and has spindle retained axially in plate springs
Inventor: RODEN KARL ING GRAD
IPC: H02K7/06
Filed: 1990-11-27
Abstract: The coupling (2-4) is fitted between the motor (1) and a spindle gear (5) for operation of a tractive and press movement for a plate coupling or a longitudinal movement. As the axial forces of the spindle gear are equal, the spindle is retained axially in plate springs (8) and the motor can be switched off in end positions by position switches (11). The spindle has a noticeable adhesion friction in the end positions which a motor with a normal coupling during rearward movement cannot overcome. The coupling used (2-4) has two pick-up pins (3) which press the one coupling half against locations (4) of the other coupling half, and after the motor direction has been changed over, the adhesion friction between the spindle (5) and nut (12) can be overcome by the motor flywheel moment. USE - To overcome adhesion friction in a spindle gear.
Patent DE-4040647-A1 (DE)
Title: Thief-proof vehicle number plste mounting - ha U=section locking members with hooks on flanges
Inventor: PEUKER TINO
IPC: B60R13/10
Filed: 1990-12-19
Abstract: The thief-proof mounting is for a motor-vehicle number-plate, and comprises a baseplate with peripheral U-section edge (3). This edge contains two insertion slots (9) at one side of the mounting (1) while bending U-section locking members (4,5) are fixed to the baseplate (2). These have locking hooks (7) on each of their flanges, and one of them (5) has a central rib (8), also with locking hooks. ADVANTAGE - Allows unhindered changing of number plate, or makes it thief-proof.
Patent DE-4101445-A1 (DE)
Title: Determn. of ejaculate quality - by measuring concn. of microparticles
Inventor: BUNDSCHUH GERHARD DR MED
IPC: G01N33/487
Filed: 1991-01-17
Abstract: The quality of ejaculates, esp. intended for artificial insemination of livestock, is determined by measuring the concn. of microparticles in the ejaculate and using a calibration curve to determine the statistically probable efficiency of the ejaculate. The microparticles are membrane-enclosed vesicles with a dia. of 1-6 microns, filled with cytoplasm components. The assay is performed by diluting an ejaculate sample with physiological saline, placing the sample in a blood cell counter chamber, and counting the microparticles under a microscope. ADVANTAGE - The process gives more reliable results w.r.t. probable pregnancy rates than the process of DD 269555.
Patent DE-4103129-A1 (DE)
Title: Glass melting appts. - with grating supporting charge layer above glass bath
Inventor: SCHELINSKI SIEGFRIED
IPC: C03B5/033
Filed: 1991-01-30
Abstract: In a glass melting appts., in which a charge layer of glass raw material batch and opt. cullet or glass powder, grit, shards, scrap or frit is supported at its underside and heated and melted above a free gas space, the novelty comprises the provision of a grating comprising high temp. support tubes, rods or beam with a max. cross-sectional dimension not greater than 300 mm., arranged at spacings of up to 150 (pref. 20-100) % of the max. dimension alongside one another in a horizontal plane or alternately in two horizontal planes. ADVANTAGE - The grating supports the charge layer above and spaced from a glass bath surface so that a stable gas space is formed, across which the molten charge drips or flows.
Patent DE-4105036-A1 (DE)
Title: Treatment of effluent water contg. cement or concrete solids - by incorporating an antisticking agent for the cement, removing coarse solids and pumping the water contg. the fine solids to a filter unit
Inventor: BIZER KLAUS
IPC: C02F9/00
Filed: 1991-02-19
Abstract: An installation for sepn. of solids from concrete- or cement- contg. effluent ater resulting from processing of concrete, prodn. of concrete parts or the cleaning of concrete processing machinery, uses a filter container with filter basket inset which removes the solids from the effluent water. It is characteirsed in that the unit includes: (i) an input device, for introducing an anti-sticking agent into the effluent water; (ii) a collection vessel with stirrer for the effluent water and (iii) a pump for pumping the effluent water out of the collection vessel into the filter container. USE/ADVANTAGE - Incorporating an anti-sticking agent into the effluent water prevents the solids from setting in the filter as in previous filter purificn. systems and allows the coarser solids to be sepd. from the remaining effluent water with a sieve or screw conveyor so that the effluent water contg. the finer solids can be pumped into the filter container. Due to the presence of the antisticking agent, no deposition of cement solids occurs on any of the parts of the appts. coming into contact with the effluent water during the pumping operation, thus giving problem-free operation of the system. The cement solids collected in the filter container do not set so they remain pourable at all times to enable easy emptying of the filter when required
Patent DE-4105466-A1 (DE)
Title: Linking personal computer and pushbutton telephone - using optical or magnetic link to provide galvanic separation and wireless data transmission
Inventor: MANTHEY REINHARD
IPC: H04M1/737
Filed: 1991-02-21
Abstract: The computer link allows a telephone number stored in the personal computer memory to be transferred to the telephone handset (F5) via a data line (D) and an interface device (UE). The data is transferred fromt he interface device (UE) to the telephone handset (F5) via a optical or magnetic link (S). Pref. the data is transferred between the interface device (UE) and the telephone handset (FS) via an IR signal or a modulated HF signal. ADVANTAGE - Ensures galvanic separation between personal computer and telephone handset.
Patent DE-4107653-A1 (DE)
Inventor: BUBIK ALFRED DR
IPC: D21F1/52
Filed: 1991-03-09
Abstract: A dewatering device for the web-forming or wet section of a papermaking machine comprises foils arranged transverse to a forming wire, that is to say, extend in the cross-machine direction. Force or powering elements act upon the foils so as to exert a force or pressure upon the forming wire, and thus, bring about dewatering and sheet formation of a layer of fiber stock suspension reposing upon the forming wire. The force elements are constructed and positioned such that additional moments are generated which counteract tilting moments produced by the frictional force present between the foils and the forming wire. In certain arrangements, the force elements also can be interconnected with one another.
Patent DE-4115089-A1 (DE)
Title: Pipe-end chamfering mechanism clamped inside pipe - is supplied with driving oil by separate gear pump via flexible hose
Inventor: LEHMANN GERHARD
IPC: B23B5/16
Filed: 1991-05-06
Abstract: The chamfering mechanism for a pipe end face is clamped inside the pipe itself. Hydraulic oil under pressure for driving the tool is supplied by a separate unit connected to it by flexible feed and return hoses (5,5'), and which comprises a gear pump (2) with drive mechanism (1), and an oil storage tank (4). The tool comprises a clamping system, a feed mechanism and a toolholder (12). The clamping mechanism can comprise a central boss (15) with spring-loaded radial clamping rams (16). These are supplied by a pressure accumulator with control valve. ADVANTAGE - Safely clamps in pipe for entire machining period, the feed and tool drive being separately controllable.
Patent DE-4116274-A1 (DE)
Title: Environmentally-acceptable, non-CFC refrigerant - consists of mixt. of carbon di:oxide and partly fluorinated hydrocarbon(s), esp. R32, R143A, R125 etc.
Inventor: KRUSE HORST PROF DR ING
IPC: C09K5/04
Filed: 1991-05-17
Abstract: The coolant (I) for refrigerators or heat pumps consists of a mixt. of CO2 and partly fluorinated hydrocarbon(s) (II). Pref. (II) is CHF3 (R 23), CH2F2 (R 32), CHF2-CH3 (R 152a), CHF2-CH2F (R 143), CF3-CH3 (R 143a), CHF2-CHF2 (R 134), CF3-CH2F (R 134a), CF3-CHF2 (R 125) and/or CF3-CHF-CF3 (R 227). Pref. (I) contains 1-99 (pref. 4-80) wt.% CO2 and 99-1 (pref. 96-2) wt.% (II), esp. R 32, R 143a and/or R 125. Esp. (I) contain (a) 4-25 wt.% CO2 and 75-96 wt.% R 134a or R 152a, or (b) 5-50 wt.% CO2 and 50-95 wt.% R 32, R 143a or R 125, or (c) 5-50 wt.% CO2, 25-70 wt.% R 32 and 25-50 wt.% R 125. USE/ADVANTAGE - (I) is useful as a substitute for the coolants R 22 (CHClF2) or R 502 (azeotropic mixt. of R 22 and R 115 (C2ClF5)) (with II = R 152a, R 143, R 134, R 134a and/or R 227; esp. mixts. (a) above), and as a substit. for the coolant R 13B1 (CF3Br) (claimed). Provides an environmentally acceptable substitute for various CFC-tpe coolants. Mixts. of (I) are non-flammable and non-toxic, with low ozone degradation potential, low greenhouse potential (GVP), and adjustable b.pt. (within certain limits)
Patent DE-4119016-A1 (DE)
Inventor: BAUMANN GUENTER
IPC: B42D15/04
Filed: 1991-06-08
Abstract: The publicity letter (100) has an inner part (101) and an outer part (102). The outer part (102) and the inner part (101) each have two flaps (outer flaps 104 and 105 and inner flaps 107 and 108, respectively), which can each be folded relative to one another about a fold line (primary fold line 106 and 109 respectively). The inner flaps (107; 108) are each adjoined, on the edge remote from their fold line (109), by an additional (secondary) flat section (111; 112), between which and the associated inner flap there is a second fold line (secondary fold line, 113; 114). The secondary fold lines (113; 114) are oriented parallel to the fold line (109) of the inner flaps. At least adjacent to the secondary fold lines (113; 114), the additional flat section (111; 112) of each of the inner flaps (107; 108) is connected to the neighbouring outer flap (104; 105). A removal part (103) is arranged in the interior of the inner part (101). On the inner part (101) there is a removal aperture (115) which is matched to the removal part (103), in respect of its dimensions and its arrangement, such that when the outer flaps (104; 105) are folded apart, entailing the folding apart of the inner flaps (107; 108), the removal part (103) emerges at least partially from the removal aperture (115) and can then be removed completely therefrom. <IMAGE>
Patent DE-4122747-A1 (DE)
Title: Electrical multistage contact switch - has spring contact arm that deflects to engage multiple fixed contacts
Inventor: GANSER MARTIN DIPL ING
IPC: H01H19/60
Filed: 1991-07-10
Abstract: A multistage electrical switch has a number of fixed contacts (9) supported in holders (10) set around a circular arc. Each contact has a connector (11) for external use. The movable contact is in the form of a pressed metal strip (8) with a spring characteristic and is supported at one end by being fixed to a contact pad (BE). The spring contact is in the form of a curved section that moved by a pivot-mounted (3) actuator arm (2). The end of the arm is shaped (6, 7) to slade smoothly over the spring contact. After 90 deg. movement the unit is securely held agains the contact. ADVANTAGE - More secure electrical contact engagement.
Patent DE-4123691-A1 (DE)
Title: Vehicle roof attachment - has plastics box-like container with projecting edges to engage rainwater channels
Inventor: SCHMUDE HANS-JOACHIM
IPC: B60R9/058
Filed: 1991-07-17
Abstract: Roof attachment for a vehicle made in the shape of a plastic box and releasably attachable to the vehicle roof (2). The box (3) has on its base (4) a drawn-down shaped support edge (5) which allows the box to engage the rain channel (6), where the support edge and the channel are stabilised by the addition of a clamping rail (7) which can be secured by screws (8). ADVANTAGE - Method of attaching a box-like structure to a vehicle roof which does not shake free over rough terrain, and which also improves aerodynamic behaviour.