baber/WOPTO huggingface dataset:
Patent DE-3906440-A1 (DE)
Title: Super-fast charger for gas-tight nickel-cadmium accumulators with an accumulator full-charge state identification, called an SS-20 (20 minute charging time)
Inventor: BECH JAROSLAV
IPC: H01M10/44
Filed: 1989-03-01
Abstract: The subject-matter of the invention is a charger which makes it possible to recharge gas-tight nickel-cadmium accumulators in an extremely short time, indicates the charging of a full battery or charging at unacceptably low temperatures and, using a reconditioning discharge unit, allows possible actuation of the accumulator or its discharging - in order to charge it fully again absolutely reliably and without damage, in 20 minutes.
Patent DE-3908739-A1 (DE)
Title: Process for the removal or decrease of halogenated aromatic compounds from exhaust gases of incineration plants for waste or special waste
Inventor: KAINER HARTMUT DR
IPC: B01J37/00
Filed: 1989-03-17
Abstract: The invention starts from a process for the removal or diminution of halogenated aromatic compounds, in particular polychlorinated phenols or polychlorinated dibenzodioxins and polychlorinated biphenyls from exhaust gases of incineration plants for waste or special waste by thermal treatment at temperatures between 300@C and 700@C in the presence of an iron oxide-containing catalyst. The process according to the invention is characterised in that   a) air and NH3 for the simultaneous diminution of the NOx contents are added to the hot exhaust gases, and b) the catalyst used is a sulphate-containing and/or phosphate-containing iron oxide catalyst.   The process according to the invention has the advantage that, with simultaneous decrease of the NOx contents, even highly toxic halogenated aromatic compounds, in particular PCBs can be removed from exhaust gases of incineration plants for waste or special waste.   <IMAGE>
Patent DE-3909566-A1 (DE)
Inventor: REWITZER SIEGFRIED
IPC: B30B9/30
Filed: 1989-03-23
Abstract: Device and method for packaging and pressing fibre flocks from short-cut fibres or fibres with high sliding properties in bale form by means of a filling shaft (2), in which a distributor device (6) ensures that the fibre flocks are transferred uniformly to a clearing device (7) already having the width (4) of the press-container orifice (5), the clearing device (7), in interaction with a longitudinal smoothing device (9), moving the flocks further in such a way that a uniform feed of the press container (11) is obtained. Fibre flocks introduced in this way can then be prepressed, finish-pressed, packaged to form bales and sheathed in a way known per se. 
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Patent DE-3909822-A1 (DE)
Title: Device for actuation and control of the valves of an internal combustion engine
Inventor: WEIGLE DIETER DIPL ING
IPC: F01L9/10
Filed: 1989-03-25
Abstract: The engine valves (11, 12) of an internal combustion engine (10) are actuated and controlled by means of hydraulic cylinders (15, 16), which are connected by lines to the corresponding pump cylinders (21, 22) of an injection pump. In this way optimum control of the engine in terms of exhaust emissions and consumption can be achieved, especially by adjusting the pump delivery by way of the control rod (23) of the injection pump. <IMAGE>
Patent DE-3918634-A1 (DE)
Title: Thermal print head unit - has electrodes formed by coil winding followed by cutting into separate units
Inventor: KIESEWETTER LOTHAR PROF DR
IPC: B41J2/335
Filed: 1989-06-05
Abstract: A thermal printer has a head unit (1) with a carrier block (2) of ceramic or epoxy resin onto which is wound a coil of wire (5) with a specific pitch distance between coils. The coils are separated into individual electrodes by cutting along the front edge. Each electrode has a contact block (7) that is engaged by spring contact fingers (9) with connecting wires (10).  The electrode wire is lacquer-coated and this is removed from the surface at the points of contact with the paper (12).  A connector block provides direct contact with the electrode ends as an alternative means of supplying the elements. ADVANTAGE - Simplifies manufacture of the head of printer.
Patent DE-3924257-A1 (DE)
Title: New tri:alkoxy-silyl derivs. - which are of aminoacid(s), sugars, etc. useful as protected intermediates
Inventor: GRUSZECKI WOJCIECH DR
IPC: C07F7/04
Filed: 1989-07-19
Abstract: Trialkoxysilyl derivs. of formula RxSi(OR1)3 (I) are new; where R= the residue of an amino acid, peptide or sugar of formula RXH, or a 1-24C hydrocarbon gp. which is opt. substd.  by amino, oxo, thio (sic) gps. and/or interrupted by O, N or S; R1 = 1-4C alkyl; X= O or S. Pref. (I) area amino acid trialkoxysilyl esters, or amino acid or sugar trialkoxysilyl ethers. USE/ADVANTAGE - (I) are useful as protected intermediates, e.g. in the synthesis of peptides or sugar derivs.. For example, N-Boc-aspartic acid beta-(tri-t-butoxysilyl) ester is useful as an intermediate for the sweetener aspartane. Trialkoxysilyl protecting gps. are easy to introduce and remove, and the protected intermediates are easily isolated and have good stability in aq. media and good solubility in organic solvents.
Patent DE-3925806-A1 (DE)
Title: Capacitive voltage converter for encapsulated switching systems - has cylindrical intermediate electrode, and requires no additional sealing points
Inventor: NIEGL MANFRED DIPL ING
IPC: G01R15/16
Filed: 1989-08-04
Abstract: A capacitive voltage converter contains a capacitor on the high voltage side whose electrodes are a primary conductor (3) fed into a capsule (1) and a pref. cylindrical, thin-walled metal intermediate electrode (4) between the conductor and capsule (1). The intermediate electrode and part of the capsule form a measurement electrode. Intermediate electrode fixing parts (5) and a connecting cable (7) connector are mounted on the outside of the metal cylidner (4). At least one fixing part maintains the metal cylinder and outer tube insulation separation. USE/ADVANTAGE - For use in metal encapsulated switching systems with gas or liquid insulation without requiring additional sealing points.
Patent DE-3926624-A1 (DE)
Inventor: BUSCHOR KARL
IPC: B05B7/14
Filed: 1989-08-11
Abstract: In the feed gas line (4) and in the metering gas line (24) of an injector (2), there is in each case a pressure-adjustment device (6,26) which can be adjusted with respect to the initial pressure. A gas flow meter (46) indicates the entire quantity of feed air and metering air flowing per time unit. As a result, the pressures of the feed air and of the metering air can be varied and, nevertheless, the entire quantity of gas in the powder/gas stream can be kept at a desired value in a simple manner. 
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Patent DE-3926781-A1 (DE)
Inventor: IMHOFF RALF DIPL ING
IPC: B23K26/14
Filed: 1989-08-15
Abstract: Process for welding by laser beam or similar high-energy radiation, in which two contiguous workpieces have a coating between them, the vaporization point of which is lower than the melting point of the material of the workpieces, and in which a gas flow is directed onto the weld. To improve this process so that coated workpieces can be welded without gaps and so that gas can escape through the vapour capillaries of the weld, a current of gas which promotes degasification of the vaporized coating through the vapour capillaries of the weld is used in addition to the current of protective or working gas which flows around the weld.
Patent DE-3937740-A1 (DE)
Title: Prodn. of metal or alloy nano-crystals - by vaporising base material by plasma flame and condensing on cooled surface to produce particles of uniform size
Inventor: ALBERTI RUDOLF C DR
IPC: B22F9/12
Filed: 1989-11-13
Abstract: Prodn. of nanocrystalline powders made from metals, alloys or ceramic materials has the novelty that the base material is vaporised by a plasma flame and is condensed on a cooled surface. More specifically a solid body made from the base material forms the cathode and is swept by a plasma flame under a low pressure. A vaporisation and condensn. of the base material is effected at a pressure of about 50mbar. When the powder is made from ceramic material, finely divided powder with a size less than 20 micrometres and made from the base material is blown into the plasma flame by a carrier gas comprising Ar and/or He. Powder or largely uniform particle size is produced with only limited requirement for appts.
Patent DE-3939982-A1 (DE)
Title: New 2,4-substd.-phenyl or -bi:phenyl 5-substd.-alkyl pyridine cpds. - used in liq. crystal phase esp. dielectric for electro-optical display
Inventor: WAECHTLER ANDREAS DR
IPC: C09K19/34
Filed: 1989-12-02
Abstract: New 2-(4-substd.-(bi)phenyl)-5-(substd.-alkyl)-pyridine cpds. of formula (I) are new; where R1 and R2 independently = 1-12 C alkyl, alkenyl or oxaalkyl; L1 and L2 independently = H or F; Y = -O-, -CO-O, -O-CO- or a single bond; m = 1 or 2; Z = H,F,OH or 1-5 C alkyl; and Q = -O-, -O-CO- or, if z = F or OH, may also = a single bond. (I) may be prepd. by standard methods, e.g. as described in Houben-Weyl, Methoden der Organischen Chemie, George-Thieme-Verlag, Stuttgart. USE/ADVANTAGE - (I), which are pref. optically active, are claimed for use in chiral tilted smectic liq. crystal (LC) phases, esp. as dielectric for electroptical displays.  They give stable chiral tilted smectic LC phases with favourable ferroelectric phase region, esp. with wide SC (asterisk) phase region, negative or positive dielectric anisotropy, low optical anisotropy, favourable pitch height, low viscosity, esc. low temp.  dependence of the switching time, high spontaneous polarisation  and very short switching times. (I) are also useful as intermediates for other substances used in LC phases.
Patent DE-3940285-A1 (DE)
Title: Electrical switch with contact bar between two stops - has asymmetrical wedge profile at end of bar, reversible for NO or NC application
Inventor: NEUBAUER WALTER
IPC: H01H11/00
Filed: 1989-12-06
Abstract: The bar (33) is pivoted within the switch housing (10) and carries a wedge profile (34) which co-operates with a movable switching element (21). The fixed contact (39) is mounted rigidly at one end of the range of displacement of the bar (33). The stops (49) are formed on respective mouldings (11,12) at opposite sides of the housing (10) so that the switch can be converted from a normally-closed to a normally-open variant simply by reversal of the wedge profile (34). USE/ADVANTAGE - Esp. in motor vehicle. Opening, closing and change-over switches can be assembled easily from common components.
Patent DE-4004644-A1 (DE)
Title: Concrete paving slabs with spacers and dummy joints - are longitudinal irregular octagons with internal angles less than 180 deg. made up into sets of four
Inventor: ROTH REINER DIPL ING
IPC: E01C5/06
Filed: 1990-02-15
Abstract: Concrete paving slabs with spacers and dummy joints are longitudinal irregular octagons (2) with internal angles of less than 180 deg. The slabs (1) are joined together by integral bridging pieces (4) at a low level, the width of a joint (5), but which do not extend the full length of the joint (6). Opposite pairs of long sides (7) are the same length and longer than the opposite pairs of short sides (8), so that from both axes (9) the slab is mirror imaged. Four slabs (1) make up a set with two longitudinal slabs end on end (10), and the other two are set longitudinally one above the other and below and centrally on the first two. USE/ADVANTAGE - Concrete paving slab system saves time by laying four at a time.
Patent DE-4008873-A1 (DE)
Title: Electronic musical instrument sound generator
Inventor: FRANZ REINHARD
IPC: G10H1/12
Filed: 1990-03-20
Abstract: An electronic musical instrument has a main processor with an associated memory storing digitally sampled signals representing the musical sounds. Coupled to the system bus, modules generate the sounds associated with different instruments.  Each generation module (8) has processors (19-22) connected to an interpolation filter (23). Values from the main system memory are digitally interpolated and the higher frequency components attenuated to provide improved sound reproduction.
Patent DE-4010537-A1 (DE)
Title: Sand moulds - are shaped with a counter-pressure plate and separate dies to reduce sand consumption
Inventor: WEISS FRANZ DIPL ING
IPC: B22C15/08
Filed: 1990-04-02
Abstract: To produce moulds from sand contg. a bonding agent, using a model pressed into the mould area against the action of a counter plate, the moulds are filled with the sand through bulk filling or pneumatically in a mould frame or box. A multiple die press plate at the mould edge presses in, or is inserted into the mould zone, to be locked with the mould walls at an adjustable depth. Pressure is applied to the separate dies, together or individually, with an adjustment for each die to give a partic. value. ADVANTAGE - The method reduces the amt. of sand consumed, and can be used for a wide range of models and mould types.
Patent DE-4014084-A1 (DE)
Title: Suspending loads on channel profiles - involves two hook-head screws and connectable traverse
Inventor: PREDL BRUNO
IPC: E21F17/02
Filed: 1990-05-02
Abstract: The suspension claw (10) anchored to a reinforcement profile (11) comprises two hook head screws (12), a traverse (13), and a load connecting member (14). The traverse has a central part (15) which is virtually the same shape as the reinforcement profile (11), and along its central axis is an aperture (16), and two arms (17) on each side of the central part (15). A hole (18) passes through the two arms. These holes serve to accommodate hook head screws (12) with a threaded section (20) and a hook section (20) in order to fix the traverse (13) to the reinforcement profile (11). The aperture (16) in the traverse is formed as along hole, and the load connecting member (14) has a hook (22) on the load side, and which has a T-shaped end area (23).
Patent DE-4015107-A1 (DE)
Title: Measurement nozzle for heating system throughput - has bores either side of aperture leading to differential press meter adaptor
Inventor: SEIFFERT GUENTHER DIPL ING
IPC: G01F1/42
Filed: 1990-05-11
Abstract: The nozzle is for flow measurement on heating bodies in heating systems carrying heating liquid media such as water is installed between the heating body and its fitting to the system. Radial bores (8,9) are arranged before and after an aperture (7) mounted in the measurement nozzle's flow channel between the connections for the heating body and its system fitting. The bores open into closable connection channels of an adapter (13). Each channel has a differential press. measurement arrangement output. USE/ADVANTAGE - For use in hydraulic balancing of heating system. Enables very rapid measurement of throughput using differential press. measurement device.
Patent DE-4016304-A1 (DE)
Title: Device for aligning overlapping sheets - uses adjustable size suction force avoiding edge deformations
Inventor: REINSCH KARSTEN DIPL ING
IPC: B65H9/10
Filed: 1990-05-21
Abstract: The device for aligning underlapping sheets has at least two suction plates set side by side in the feed table to convey the sheets inclined to the original conveyor direction.  The smallest distance (1) between the front marks (2) and the pitch circle (4.1) of the suction plates (4) is at least greater than the underlapping scale distrace. The suctionn device (5) which is mounted in the suction plate can be designed as double-stroke suction members freely rotatably about their axis. USE/ADVANTAGE - Higher productivity in printing machines when processng different printed matter.
Patent DE-4016458-A1 (DE)
Title: System for measuring distance between vehicles - transmits information between two successive vehicles by electromagnetic waves and acoustic pulses
Inventor: RAPPS PETER
IPC: G01S15/931
Filed: 1990-05-22
Abstract: Each vehicle (1, 2) has, at its front, an ultra sonic transmitter (3) and an electromagnetic wave receiver (7) and, at its rear, an ultra sonic receiver (5) and an electromagnetic wave transmitter (6). Electromagnetic waves are transmitted in at least one direction between the vehicles and acoustic pulses are transmitted in at least an opposite direction. - The information transmitted by the electromagnetic waves includes information on the timer the acoustic pulses are received and the information may then be further analysed and processed.
Patent DE-4017661-A1 (DE)
Inventor: BOEHM LUDWIG DR
IPC: C08F4/68
Filed: 1990-06-01
Abstract: Poly-1-olefins, in particular polyethylene, are produced using a Ziegler catalyst whose transition metal constituents are produced by reacting a transition metal compound of titanium, zirconium, vanadium or chromium with a gel-like dispersion of a magnesium, alcoholate. An organoaluminium compound is used as co-catalyst. The polymerizates are obtained in high to very high yields and the particle size distribution of the polymerizates can be controlled.
Patent DE-4019263-A1 (DE)
Title: Temp. controlled snap action switch - has bimetallic disc for operating actuator plunger opening contacts
Inventor: JOECHNER RAINER
IPC: H01H37/54
Filed: 1990-06-16
Abstract: A snap action temp. operated switch, of the type used in a road vehicle cooling system has an end cap with a bimetallic disc (12) held in place by an external cover (13). A plunger (10) is located in the centre of the end cap. The base of the unit supports contact pins (2, 3). The contacts are normally bridged by a ball (7) held in place by a spring (8). When a set temp. is reached the bimetallic strip inverts its shape and so displaces the plunger to move the ball and so break the contact. Other shapes of bridging element are provided.
Patent DE-4028040-A1 (DE)
Title: N-Alkylation of urea cpds. -  by reacting urea cpd. with alkylating agent in diluent in presence of phase transfer catalyst and solid base
Inventor: HACKL KURT ALFRED DIPL ING
IPC: C07C273/18
Filed: 1990-09-05
Abstract: Urea cpds. of formula R1R2N(CO)NHR3 (I) in which R1 and R2 (same or different) = H, straight, branched or cyclic alkyl (opt. substd. by gps. which are inert under the prevailing reaction conditions) or aralkyl or R1 and R2 together with the N atom may complete a non-aromatic heterocyclic ring and R3 = an alkyl gp. which is opt. substd. by gps. which are inert under the prevailing reaction conditions, with the exception of a tert. butyl gp., are prepd. by N-alkylating a urea cpd. of formula R1R2N(CO)NH2 (II) with an alkylating agent of formula (R3)n-X (III) in which n = 1 or 2, if n = 1, X = halide, sulphonic acid or hydrogen sulphate gp. and if n = 2, X = a sulphate gp., at 0-150 deg C in the presence of a solid base and a phase transfer catalyst in a diluent. USE/ADVANTAGE - The process allows direct N-alkylation of urea cpds. (II) to give cpds.(I) of good purity in high yield, and is an improvement on previous processes for prodn. of N-alkylated ureas (I).
Patent DE-4032701-A1 (DE)
Title: Piston IC engine cooling system - has switchable coolant pump in cooling circuit, and second pump for selective temp. control
Inventor: STEIDELE THOMAS DIPL ING
IPC: F01P5/10
Filed: 1990-10-15
Abstract: The main coolant circuit has a main coolant pump (22) which takes coolant from a heat exchanger (20) and pumps it first through the engine block (12) and then through the cylinder head (14) and back to the heat exchanger. For a rapid warm up the main coolant circuit is shut off and coolant is pumped via a secondary, electrically driven pump (36) through the cylinder head only. The secondary circuit contains a heat accumulator (38). The secondary circuit also has a heat exchanger (52) and an interior heater. The heat accumulator holds latent heat and is recharged, when the engine runs. The secondary pump is shut off when the heat store has been recharged. ADVANTAGE - Rapid engine warming after cold start even for a diesel engine.
Patent DE-4038811-A1 (DE)
Title: 1,2,4-Triazole derivs. - are plant growth regulators and herbicides, esp. effective against dicotyledons
Inventor: TOBLER HANS DR
IPC: C07D249/12
Filed: 1990-12-05
Abstract: Triazole cpds of formula (I) and their optically active forms are new, R1 = 1-5C alkyl, 1-4C aralkyl or aryl; R2 = 1-5C alkyl or 1-5C haloalkyl; R3 and R4 = each H or 1-2C alkyl; X = 0, S or NR9; R5 = C00H, C00R6, C0NR7R8, C0SR6, C0S(CH2)mC0R6, CN or C00N=CMe2; R6 = 1-5C alkyl, 3-5C alkenyl, 3-5C alkynyl, 1-4C aralkyl or aryl; R7 = H, 1-4C alkyl, 3-4C alkenyl, 1-2C alkoxy, 1-4C aralkyl or aryl; R8 = H, 1-4C alkyl or 3-4C alkenyl; or R7 and R8 together with N to which they are attached form pyrrolidono, piperidino or morpholino; R9 = H or 1-4C alkyl; m = 1 or 2, n = 0 or 1. The intermediates of formulae (II), (III) and (IV) are also new.  Hal is halogen, esp Cl or Br. USE/ADVANTAGE - (I) are selective plant growth regulators and herbicides, esp effective against dicotyledons in crops such as sugar cane, cereals, cotton, soya, maize and rice. (I) are also selectively effective against weeds previously only controlled with total herbicides. (I) can be used in smaller quantities than previous herbicides.  (I), (III) and (IV) are intermediates in the prepn of various (I).
Patent DE-4039501-A1 (DE)
Inventor: WILDE EUGEN
IPC: H05B3/74
Filed: 1990-12-11
Abstract: The rim of an electric radiant heater is formed by a multilayer body (13). It can have the cross-sectional shape of a U, whose interior is filled with a good insulating material. In the interior (23) is placed a sensor coil (23) for a pot detection system, where it is well shielded against heat and mechanical influences.
Patent DE-4042274-A1 (DE)
Title: Circuit generating defined control deviation - has path rated value coupled to prod. former as rated speed via differential member
Inventor: EBERMANN JOACHIM
IPC: G05B19/19
Filed: 1990-12-31
Abstract: The circuit generates a defined control deviation in position control loops. It contains a rated/actual comparison element and a prod. former (7) for loop gain. A rated path displacement is connected, via a differential element (2), as rated speed to the prod. former, which receives the reciprocal of the rated loop gain from memory. The prod. and a null shift are subtracted (9) from the control deviation. The result of the subtraction is connected via a sign decoder (15.1) to an equivalence element (22), which also receives the differential element output via a further sign decoder (15.2) and controls a changeover switch (16), passing the input or its inverse to an integrator (20). The latter output is added to the rated gain and fed into the loop gain prod. former. USE/ADVANTAGE - For converting multi-dimensional; interpolated rated displacement values into high accuracy path movements in machine tools, with path error elimination for precise machining.
Patent DE-4104744-A1 (DE)
Title: Coating appts. fixing film onto circuit boards - applies photosensitive film fed from both sides onto surface of PCB
Inventor: TAGUCHI HIROSHI
IPC: H05K3/06
Filed: 1991-02-15
Abstract: A multi layer film is supplied (1) to a stage (3) where separation of protective film (1A) and a multi layered film (1B) is carried out. The multilayer film is passed over rollers (5) and an anti-static element (18) through a low pressure suction chamber (6). The chamber is moved vertically and passes a cutting stage (15). A p.c.b. carrier (22) moves horizontally between the two film handling stages. The film strips from both sides are brought into contact with the board and are fixed in  position. - utomatc xng o lm onto crcut oar suraces.
Patent DE-4111274-A1 (DE)
Title: Stand with lock for bicycle - has single pivoted element to serve as support foot and locking bar
Inventor: MANN ROBERT
IPC: B62H5/00
Filed: 1991-04-08
Abstract: The stand has a foot (1), with a locking bar (2) on a common defined locking axis (7); a lock (11) with a double transverse bar (3,4) and a central fastening screw (5). The locking bar engages in the spokes (9), when swivelled, and in this position, covers the fastening screw. The double bar is formed as a single punched part. The stand is welded or rivetted to the bicycle frame.