baber/WOPTO huggingface dataset:
Patent DE-3926687-A1 (DE)
Title: Continuous electrophoresis appts. - for elution of fractions sepd. by electrophoresis without destroying the gel
Inventor: PSARROS NIKOLAOS DR RER NAT DI
IPC: B01D57/02
Filed: 1989-08-12
Abstract: An electrophoresis appts. is to be used to eluate from a gel (a homogeneous macromolecular mix) the fractions sepd by gel electrophoresis and thus to perform an isolation without destroying the gel. The appts includes an upper electrode chamber, a separator tube, a lower electrode chamber and a filling facility for the liq separating medium. ADVANTAGE: This appts. is simple to use on an analytical or semi-preparatory scale with optional sepg media. Pref the upper electrode chamber (1) has a current connection (1a) with a protective sleeve (1b), a pt wire electrode (1c), two hose connections (1d) and a rod for fixing to a stand. The separator tube (2) has an electrophoresis tube (2a) with a cooling jacket (2b). The bottom electrode chamber (3) has a current connection (3a) with a protective sleeve(3b), a pt disc electrode (3c) and the elution system with the inlet (3d) outlet (3e), bypass (3g) elution chamber (31) and bypass connector (3h). To fill the appts. the tube (2) is fixed by a union nut (2f) to the filling facility (4).
Patent DE-3929018-A1 (DE)
Title: Opto-electronic image converter on semiconductor chip - has image sensors in=line and A=D converter for each sensor
Inventor: WENDT HARTMUT DIPL ING
IPC: H04N3/15
Filed: 1989-09-01
Abstract: The converter is formed on a semiconductor chip for a high resolution TV camera. In one line numerous image sensors (S1 - n) are formed each image sensor is connected to an  A/D converter (ADW) for digitising the data. A shaft register (SR) is used for buffer storage of the digital data. Pref. 2,000 image sensors are arranged in a line. The A/D converter typically consists of pulse width modulators (PWMI - n) and counters (ZL - n). The sensors pick up photosignals (LI - n) which are converted into a signal voltage proportional to the photoenergy. It is of advantage to provide an extra control of the photosensitivity. ADVANTAGE - High TV resolution and linearity even at low light intensity.
Patent DE-3930075-A1 (DE)
Title: Fault tolerant operation of multiprocessor systems - has signature vectors generated by each processor for comparison to identify fault
Inventor: STOPP ANDREAS DR ING
IPC: G06F11/08
Filed: 1989-09-09
Abstract: A fault tolerant multiprocessor system is based upon a number of identical processors, each one of which has a CPU (1), ROM (4), RAM (5), timer (6), I/O interface (12) and a communication interface (11). Each of the processors has an error independent signature switching circuit (10) that are heirarchically connected to the highest priority processor. The signature circuit operates to provide automatic monitoring of the processor, combined with testing and isolation of the unit in the event of a fault being identified. In association with the processor, the signature controls a cycle that results in fault correction. The control algorithm is based upon comparison of signature values. ADVANTAGE - Provides high fault-tolerant mode of operation.
Patent DE-3934489-A1 (DE)
Title: Sound barrier alongside railway track
Inventor: TERKL HANS ULRICH ING
IPC: E01F8/02
Filed: 1989-10-16
Abstract: Sound barrier alongside railway track consists of inverted funnel-shaped element topped by angled element and lined with sound-proofing material
Patent DE-3940162-A1 (DE)
Title: Sealed dish or packing foodstuff - is made by folding rectangular sheet of plastics coated cardboard
Inventor: FAERBER JUERGEN
IPC: B65D5/20
Filed: 1989-12-05
Abstract: A liq. tight and gas tight packing is made in the form of a shallow rectangular dish which is provided with a cover.  The dish is made from a sheet of thin cardboard which is coated with plastics which enables the cover to be heat sealed to the dish flanges. The dish is made from a rectangular blank which is folded to form sloping side walls and turned out flanges  (17,18,19,20).  The edges (29) to (32) of these flanges form continuous lines with the sides of the square areas (21) to (24) at the dish corners when the blank is folded to form the dish. USE - Packing of foodstuff.
Patent DE-3940180-A1 (DE)
Inventor: ZIRPS WILHELM ING GRAD
IPC: B60T8/40
Filed: 1989-12-05
Abstract: The proposal is for a brake pressure regulating system for brake installations with anti-lock and starting slip control in which there is at least one expansion chamber (29) with a closing device (31) fitted therein between the wheel brake cylinders (9, 10) and the return pump (16). This additional closing device (31) fitted on the expansion chamber (29) obviates the need for a separate brake pressure regulating valve. In addition, a valve seat (32) at the outflow aperture (29b) from the expansion chamber (29) which is smaller in relation to the area of the piston (30) in the expansion chamber (29) results in a steeper closing force gradient, since even small pressure differences result in large closing force differences, so that the opening and closing pressures are close together.
Patent DE-4001088-A1 (DE)
Title: Road sweeping and cleaning vehicle - has sleeves rotatable on height-adjustable bearing posts allowing horizontal pivoting of working appts.
Inventor: BOETTGER BERND
IPC: E01H1/05
Filed: 1990-01-17
Abstract: The roadsweeper has sweeping systems (6,7) to clean the surface of the road and to collect dust and rubbish. These systems are held by a retainer (3) that fixes removably to the sweeper vehicle (1). The retainer consists of a vertical bearing post (3) on which sleeves (4,5) rotate. One or more sweeping systems are fixed to the sleeves. The sweeping systems pivot in a horizontal direction.  The bearing posts on the vehicle are adjustable in height.  The sweeping systems are fixed by pivoted arms to the sleeves.  A pivoting device pivots a part of a sweeping system and is operated from the vehicle driver's cab and can pivot according to the steering angle of the vehicle. ADVANTAGE - Compact sweeping systems beneath vehicle. Simple and quick to fit.
Patent DE-4007169-A1 (DE)
Title: Electro-cardiograph with bio-electrical amplifier - has ECG recording part arranged as monitor and separate external tapping for auxiliary use
Inventor: DIMITROV PENTCHO DR
IPC: A61B5/308
Filed: 1990-03-07
Abstract: The external tapping (7) provided for the strengthened electrical measurement signals allows the  electrocardiograph to perform auxiliary functions.  The external tapping forms a further output of the amplifier of the electrocardiograph.  The tapping has a plug connection (8) such as, e.g. a socket connection or similar, arranged at the outside of the ECG housing. The tapping is assigned a hand operated adjusting device (11), e.g. a resistance switch or similar for adjusting the current and/or the voltage.  The auxiliary function can be used as a temporary heart pacemaker or as a nerve stimulator.  USE/ADVANTAGE - Electrocardiograph pref. for . introduction in clinical field.  Range of unit application widened.
Patent DE-4008212-A1 (DE)
Title: Pocket-sized collapsible umbrella - has extending centre rod, spiral wires to open out cover and tubular hand-grip to accept rod, spiral wires and cover
Inventor: SZEKELY ISTVAN
IPC: A45B25/14
Filed: 1990-03-15
Abstract: The invention relates to a pocket-sized umbrella with a handle and a collapsible frame which opens out a fabric cover in the open position. The frame (3) comprises an extendable central rod (31), and spiral wires (32) for opening the cover (2). The handgrip (4) is formed of a tube shaped collar which accepts the central rod (31), the spiral wires (32) and the cover (2). The spiral wires (32) and nylon tensioning cords (33) which govern the opening distance from the cetral rod (31) are fixed to the outer edge (21) of the cover (2). USE/ADVANTAGE - The pocket-sized umbrella is smaller than previous types.
Patent DE-4008589-A1 (DE)
Title: Hinge for vehicle exterior mirror
Inventor: VALDE GUISEPPE
IPC: B60R1/06
Filed: 1990-03-18
Abstract: The hinge for a vehicle exterior rear view mirror housing carrier frame has the free ends (40) of the frame (10) flattened and provided with three holes to correspond with projections on a first element (48) whose base is provided with a groove (65) into which locates a projection (66) on the surface of a second element (47). The second element (48) is provided on its base with pegs (68) which locate into holes (70) in the lower shank of a 'U' shaped console (41). Fitted above the frame end (40) is a coil spring (46) between upper and lower spring cups (76). The upper spring cup is supported beneath the upper shank of the console (41). A hinge pin (44) passes through the shanks of the console and central openings in the spring cups (76), the carrier frame end (40) and the first and second elements (47,48) and held in place by a nut (74).
Patent DE-4010510-A1 (DE)
Title: Reactive adhesive with imporved high temp. properties - contains rubbery polymers and initiators in olefinic monomer mixt. contg. 1-80 wt. per cent N,N,N-tris-methacryloxy:ethyl-isocyanurate
Inventor: DITTRICH UWE DR
IPC: C09J4/00
Filed: 1990-04-02
Abstract: Radically-curable reactive adhesives (I) are based on olefinic monomers (II) contg. soluble or dispersible rubbery polymers (III) and radical-forming polymerisation initiators; the novelty is that 1-80 wt.% of (II) consists of N,N',N''-tris(methacryloyl-oxyethyl)-isocyanurate (IV). Pref., 2-30 wt.% of (I) consists of glass microspheres, surface-modified with reactive organic gps. (V). Pref. (I) contain 60-85 wt.% alkyl (meth)acrylate (e.g. n-Bu, 2-ethylhexyl, etc.), vinyl acetate, styrene, acrylonitrile, etc. (II), butadiene copolymer rubber, etc. (III), with benzoyl or other peroxide and reducing agent as initiator system. USE/ADVANTAGE - W.r.t. prior-art reactive adhesives, (I) have improved adhesive properties, esp. tensile shear strength and stability at high temp. (e.g. above 100 deg.C.).
Patent DE-4017116-A1 (DE)
Title: Security key holder coupled to central alarm system - activates or disables alarm system depending upon removal or replacement of keys
IPC: G08B13/22
Filed: 1990-05-28
Abstract: The key holder has a microswitch (7,8) associated with each key hook (5,6), providing a signal used to set the central alarm system when the key is removed from the hook and for disabling the alarm  system when the  keys are replaced. A delay interval is pref., introduced, sufficient to allow the owner of the house to exit after removing the key.  Pref. the central alarm system can be switched on and off independently via a timer, for night time security etc.
Patent DE-4018600-A1 (DE)
Title: Auxiliary power operated gear changing unit for motor vehicle drive - has gear selector and gear change controlled by driver across clutch operation at pedal
Inventor: SCHREINER FRIEDRICH
IPC: B60K23/02
Filed: 1990-06-09
Abstract: The reaction of the haptic signal at the clutch pedal (3) follows the gear change at the gear box (1).  The haptic signal also works as a restoring force at the clutch pedal (3).  The resetting effect is limited in time across a control unit (8).  The resetting effect is restricted using a limit switch (31) arranged at the clutch pedal (3). The compressed air for the resetting of the clutch (2) and the clutch pedal (3) reacts in the form of pulses, working in the piston cylinder (52) across the control unit (8) and the control valve (7). The valve (7) arranged as an electro-pneumatic way valve is connected to a compressed air source (9). USE/ADVANTAGE - Auxiliary power operated gear changing unit using intermittent haptic signals at clutch pedal, further developed so that closing of clutch without gear insertion is prevented with increased reliability.
Patent DE-4022284-A1 (DE)
Title: One-piece injection moulding - has lengths produced by using sliding element for the mould
Inventor: SCHREIBER KLAUS
IPC: G09F23/00
Filed: 1990-07-12
Abstract: A box (1) for stacks of paper slips for memoranda to stand on writing desks in offices is made of plastic material as a one-piece injection moulding. Imprinted legends indicating the contents or for sales promotion (e.g. the legend DEMO) often wear away soon. To ensure the permanency of such legends, it is suggested to arrange in one of the walls (3, 4, 5, 6) recessed legends (8) with a depth of at least 1/3 of the wall thickness. The raised contours of the injection mould walls are designed with sliding elements for the legends. ADVANTAGE - The permanency of the legends is ensured.
Patent DE-4025493-A1 (DE)
Inventor: BEYER CLAUDIA DIPL CHEM DR
IPC: C08F20/12
Filed: 1990-08-11
Abstract: The invention relates to a process for the preparation of oligomers and cooligomers by free radical polymerisation of at least one monomer component B) having a relatively high tendency to polymerise and 0 - 90% by weight, based on the oligomers, of a monomer component A) having a lower tendency to polymerise, at elevated temperature and in the presence of polymerisation initiators in a conventional polymerisation vessel, in which   a) a liquid phase comprising the monomer component A) or a solvent L or both is introduced into the polymerisation vessel and is brought to the reaction temperature b) the component B) having a relatively high tendency to polymerise is added, if the component A) is present, in such a way that the molar ratio of the component B) to the component A) passes through values from 0 to about 0.2 in the initial phase of the polymerisation and assumes the value 0.2 to 20 in the end phase of the polymerisation, with the proviso that c) the reaction temperature is chosen so that it is in a range in which a homopolymer of the more readily polymerising monomer component B) is already significantly depolymerised and d) the initiator I is fed in over the entire polymerisation time, the initiator I being chosen so that the half lives at the corresponding reaction temperature are 1 minute to around 5 hours and the amounts of initiator are 0.1 to 10% by weight, based on the totality of the monomers. o
Patent DE-4027961-A1 (DE)
Title: Inner layers for tubeless vehicle tyres - prepd. from sulphur-vulcanisable rubber blend contg. synergistic mixt. of phthalic anhydride with thio-amide cpds.
Inventor: ESSER ANDREAS DR RER NAT
IPC: B60C1/00
Filed: 1990-09-04
Abstract: Tyre layers with low gas permeability are made from (A) S-vulcanisable rubber blend contg. halogenated butyl rubber, (B) reinforcing filler, (C) stearic acid, (D) ZnO, (E) sulphur, (G) vulcanisation accelerator, and (H) as retardant combination at total 0.1-1.0 pts. per 100 pts. wt. rubber of (H1) N-cyclohexylthiophthalimide (I) and phthalic anhydride (II) or (H2) N, N',N"-tris(isopropylthio) -N,N'-N"-triphenyl phosphoramide (III) and (II). ADVANTAGE - Prevulcanisation time is increased, expensive (I) or (III) is partly replaced by cheaper (II). In an example, rubber mixt. (unspecified) contg. 0.1 pt. each (I) and (II) per 100 pts. rubber had prevulcanisation time for 40% crosslinking (t40) at 170 deg.C 2.8 minutes. When mixt. contained 0.2 pt. (I) only t40 was 2.7 minutes when it contained 0.2 pt. (II) t40 was 2.6 minutes and when it contained neither (I) nor (II) t40 was 2.4 minutes. (3pp Dwg.No.0/0)
Patent DE-4028657-A1 (DE)
Title: Automatic detection of compulsive forces while balancing rotors - by comparing differences of imbalance measurement values at different revolution rates
Inventor: TROMMER WOLFGANG DR
IPC: G01M1/02
Filed: 1990-09-10
Abstract: A method for automatic detection of compulsive forces in rotors which are being balanced involves determining imbalance measurement values in each balancing plane for different revolution rates. At least two difference values per correction plane are formed from at least three imbalance measurement values per correction plane in an evaluation device. - A compulsive force is detected when both difference values for a higher revolution rate are lower than for a lower revolution rate and the decrease is of quadratic form.
Patent DE-4029104-A1 (DE)
Title: Measuring program running time of data processing system -  using timer started and stopped when defined address range boundaries are reached
Inventor: BIRK STEFAN
IPC: G06F11/34
Filed: 1990-09-13
Abstract: The method of measuring the program running time of a data processing system (DV) involves connecting the address outputs of a control unit of the data processing system with a test system (BG) with an arrangement (K1,K2) for specifying an address range and a time measurement device (TB,TN). During program running the control unit starts a time measurement when it outputs an address corresp. to a first address range boundary.  The time measurement is stopped when the control unit outputs a second address corresp. to a second predefined address range boundary. USE/ADVANTAGE - Flexible measurement of gross and nett run times of programs in data processing systems controlled independently of operator.
Patent DE-4030153-A1 (DE)
Title: HF seal for screened electronic module coupling plate -  has numerous apertures for coaxial sockets secured to closely spaced socket plate
Inventor: SANDERS WERNER
IPC: H05K9/00
Filed: 1990-09-24
Abstract: The metal housing with electronic modules to be screened has a coupling plate, whose conductive part is directly linked to the housing side walls via contact springs.  The coupling plate (9) has apertures (8) for plugging-in coaxial sockets (7).  The latter are secured on a socket plate, parallel and at a close spacing to the coupling plate. The two plates are connected via spacers (12) so shaped and fitted that they press against the contact springs (18) on the side walls (3).  Pref. the spacers are U-shaped, with the two plates secured to the shank outer sides respectively.  The mouth of the U faces the side walls. USE/ADVANTAGE - Telecommunications appts., improved screening for radiation sensitive electronic modules.
Patent DE-4033099-A1 (DE)
Title: 2,2-Bis:(aminophenyl)-propane prodn. - by nitration of 2,2-di:phenyl-propane and redn. of resulting 2,2-bis:(nitrophenyl)-propane
Inventor: BUYSCH HANS-JOSEF DIPL CHEM DR
IPC: C07C209/36
Filed: 1990-10-18
Abstract: Process for the prodn. of 2,2-bis-(aminophenyl)-propane (I) with a proportion of the 4,4'-isomer of at least 70 %, comprises nitrating 2,2-diphenylpropane (II) to 2,2-bis-(nitrophenyl)-propane (III) and reducing the (III) in a subsequent step to form (I). - Pref. nitration is carried out using 50-100 % HNO3, HNO3/H2SO4 mixts. or mixts. of H2SO4 with alkali (ne earth) nitrates. In the HNO3/H2SO4 mixts. the HNO3 may contain up to 60 wt. % H2O and the H2SO4 may contain up to 20 wt. % H2O or up to 20 wt. % SO3. Pref. the nitration reaction is carried out in a solvent chosen from aliphatic hydrocarbons, aliphatic halohydrocarbons and aromatic nitro cpds., at a temp. of 0 - 150 deg. C and using a mol. ratio of (II) to the nitro gp. contg. nitrating reagent of 1:2-15, esp. 1:2-5. Redn. of the nitro cpd. (III) is carried out eg with mixts. of non-noble metals and acids, mixts. of hydrazine and hydrogenation catalysts, mixts. of sulphides or H2S and dithionites or by catalytic hydrogenation at 0-200, esp. 20-150 deg.C and a H2 pressure of 1-100 bar, esp. 2-50 bar, and pref. using an excess of H2 of 1-10 mol H2 per mol (III) above the amt. of H2 required for complete hydrogenation of the nitro gps.
Patent DE-4036873-A1 (DE)
Title: Refill system for writing or drawing implement - has deformable compression zone located on dosing element
Inventor: BIEGEL FRIEDRICH
IPC: B44D3/12
Filed: 1990-11-19
Abstract: The refill system is for a writing/drawing/printing implement, which consists of a reservoir and a dosing element. The outer wall of reservoir and/or dosing element is wholly/partly flexible and/or elastically deformable, and has one or more compression zones. The compression zone (6) is located on the dosing element (2). This is integrated in the reservoir (3), or may be fixed to it later. The overall value of the dosing volume changed by the compression zone, corresponds mainly to the value of the desired resp. required filling volume of part of it. ADVANTAGE - Simple; provides defined filling volume.
Patent DE-4041179-A1 (DE)
Inventor: JUERGENS ERNST DR
IPC: C07C227/18
Filed: 1990-12-21
Abstract: The process is characterised in that p-nitrobenzoic acid is esterified in butanol in a manner known per se, the nitro ester is catalytically hydrogenated without intermediate isolation and the resulting hydrogenation solution, after removal by distillation of the majority of the alcohol used, is reacted with diethylaminoethanol in the presence of alkali metal alkoxides at 80 to 150 DEG C, preferably 80 to 130 DEG C, and in the course of this the alcohol liberated is continuously removed in vacuo.
Patent DE-4103715-A1 (DE)
Title: Plant for treating household and industrial waste - has bunker for supplying waste, fermentation reactor, carbonisation drum and second fermentation reactor
Inventor: KUTZER ANNEROSE
IPC: B09B3/00
Filed: 1991-02-04
Abstract: A plant for treating household waste and industrial effluents has a bunker (10) with divided compartments for supplying sorted household waste, vegetable waste, rubble and clarified waste, a fermentation reactor (18) and a composting appts. as the first partial degasification stage, and a carbonisation drum (22) as the second residual degasification stage to thermally  decompose the residues from the first stage; A fermentation reactor (32) dilutes the pollutants from the pyrolysis residues of carbonisation drum with inert or pollutant-deficient minerals, e.g. rubble, which burn the pyrolysed residue with addn. of CaO (35); to a re-mineralised ceramic clinker in third threatment stage. Process for treating household and industrial wastes is also claimed. ADVANTAGE - The pollutant potential of the thermally decomposed residue of waste can be measured exactly and then mineralised in such a way that the high effluent protection requirements for residues from waste disposal processes are fulfilled.
Patent DE-4106219-A1 (DE)
Title: Sinter powder with increased iron content - gives prods. of improved dimensional stability and mechanical properties,increasing mfg. efficiency
Inventor: TAKATA JINSUKE
IPC: C22C33/02
Filed: 1991-02-27
Abstract: The mfr. of sintered items made from an Fe based powder gives a finer control of prod. dimensions. The powder contains a higher proportion of the Fe base and has no more than 1% of an additive which can liberate water on thermal decomposition at a temp.  below the A1 transition temp. point of water. Usefully, 0.05-0.6% by wt. of an additive such as boric or oxalic acids (or their salts), or borosilicates is added. In this way, not only is the dimensional stability improved, but at the same time the effects of the type of atoms. gas, the dew point, and heat treatment in the delubrification processes are reduced. USE/ADVANTAGE - Improved prods. are obtained, both dimensionally and in mechanical properties. Increased mfg. efficiency is also.
Patent DE-4109412-A1 (DE)
Inventor: GAMPPER GERALD DIPL ING
IPC: G01B3/06
Filed: 1991-03-22
Abstract: A folding ruler has elongated wooden members (14) hingedly interconnected in pairs by clinched bolts and that snap together in their parallel positions. In order to establish the snapping connection, snap-in recesses (28) are direcly formed in the large side surface (26) of one wooden member (10, 14), spaced apart from the hinge bores (16), whereas a snap-in body made of a harder material than wood and having a convex smooth snapping surface projects over the large side surface of the other wooden member (10', 14). The snapping forces are caused by flexural strain of the member parts that project over the clinched bolts in the longitudinal direction and that, when the wooden members (14) are pivoted, are elastically expanded under the influence of the snap-in body (30) that moves over the large side surface (26) of the opposite wooden member (14).