baber/WOPTO huggingface dataset:
Patent DE-3738850-A1 (DE)
Inventor: BRAUN ROLF
IPC: B41F33/00
Filed: 1987-11-16
Abstract: In a method and device for the automatic positioning of a printing test strip for automatic densitometer measurement equipment on printing machines, further automatisation of the measurement procedure is accomplished by means of a search operation by the measuring head before the measurement operation. In order to ensure that the measurement head travels reliably over a measurement field of the printing test strip, the sheet is positioned on the inspection table so as to coincide with register marks on the measuring table.
Patent DE-3740331-A1 (DE)
Title: Process and appliance for the formation of the plates, provided with active paste, of lead-acid batteries
Inventor: KIESSLING REINER DR
IPC: H02J7/00
Filed: 1987-11-27
Abstract: A process for the formation of the positive and negative plates, which are provided with active paste consisting, at least essentially, of lead oxide, of lead-acid batteries involves arranging the plates in an electrolyte consisting of dilute sulphuric acid and a charging current flowing between the positive and negative plates through the electrolyte until the lead oxide in the positive plate has essentially been oxidised to lead dioxide and in the negative plate has essentially been reduced to lead sponge. The formation is effected, according to the invention, with the electrolyte temperature being limited to a maximum value of approximately 55@C, a first formation step involving essentially limiting the current and a second formation step involving limiting the voltage to a value which virtually rules out gas generation. <IMAGE>
Patent DE-3742155-A1 (DE)
Title: Method and apparatus for producing seamless tubes
Inventor: LAMPE ALFRED ING GRAD
IPC: B21B25/02
Filed: 1987-12-10
Abstract: Published without abstract.
Patent DE-3804670-A1 (DE)
Title: Continuously adjustable tree stand
Inventor: REINHARD HELMUT
IPC: A47G33/12
Filed: 1988-02-15
Abstract: The alignment of non-straight trees, predominantly Christmas trees, in a conventional tree stand is awkward and often possible only using additional parts such as small wedges. The new tree stand can be adapted without any problems to the non-straight tree by means of a device. In order to provide the tree stand with the ability to adapt to the non-straight tree, a pivoting bearing with internal bush is provided underneath the receiving sleeve for the tree. As a result, the tree can be continuously turned about the stand and about its own axis. The tree stand is mainly suitable for Christmas trees in dwellings.
Patent DE-3809247-A1 (DE)
Inventor: BECK FRITZ PROF DR
IPC: G01N27/416
Filed: 1988-03-18
Abstract: In a method for the electrical measurement of the concentration of acids a measurement electrode (11) consisting at least predominantly of crystalline graphite is arranged in an acid (12) having anions which form graphite intercalation compounds with graphite. The measurement electrode (11) is then intercalated by generating in the measurement electrode (11), at a variable positive potential, a current of such a size that the anions of the acids (12) can from graphite intercalation compounds with the graphite. The current is maintained until the intercalation compounds have formed at the surface. The potential at the measurement electrode (11) is then measured and used as a measure for the acid concentration. The measurement electrode (11) is subsequently deintercalated again.
Patent DE-3823962-A1 (DE)
Title: Electrical actuating element for setting the driving speed
Inventor: BURMANN KARSTEN
IPC: B60K31/02
Filed: 1988-07-15
Abstract: An actuating element for setting the driving speed has a pot-shaped magnet (3) with a plurality of coils (4, 7) which are distributed over its circumference and through which current passes in pairs. A threaded nut (2) which is constructed as a rotor and is seated on a threaded spindle (1) (which is arranged such that it cannot rotate) engages in this pot-shaped magnet (3). When current passes through the coils (4, 7), the threaded nut (2) and hence the pot-shaped magnet (3) are each displaced axially in one direction or the other, depending on the rotation direction. At the same time, the current holds an armature plate (12) against the pot-shaped magnet (3). This armature plate is connected by means of transition elements (13) to the throttle valve of the internal combustion engine of the motor vehicle. <IMAGE>
Patent DE-3825245-A1 (DE)
Inventor: BEZIN MICHEL
IPC: B62K19/16
Filed: 1988-07-25
Abstract: A method for manufacturing a bicycle fork having a steering pivot (11) consisting of steel, a fork head (12) consisting of fibre-reinforced plastic, two fork arms (13) constructed integrally with the fork head (12) and also consisting of fibre-reinforced plastic, and axle guides (14) inserted into the free end of the fork arms (13) consists in the fact that connecting pins provided on the axle guides (14) are extended by a rigid foam core (19), that the rigid foam core (19) is extended in the region of the fork head (12) by a plastic-impregnated, flexible foam core (22), that a plastic-impregnated, flexible foam sheath (20) is laid around the connecting pins (21), the rigid foam core (19) and the flexible foam core (22), that various fibre-reinforced sheaths (15, 16, 17, 18) are then laid around the foam sheath (20), that various fibre-reinforced sheaths (15, 16, 17, 18) are then laid around the foam sheath (20), that then the upper part of the fork head (12) containing the foam core (22) are combined to form a single steering pivot connecting part (12a) and are introduced at least essentially into the lower end of the steering pivot (11), and that the unfinished specimen, prepared in this way, in a heatable form is then brought into its final form and hardened. 
<IMAGE>
Patent DE-3826660-A1 (DE)
Title: Electrical heating cartridge with self-regulation
Inventor: HILLINGER ERICH
IPC: H05B3/46
Filed: 1988-08-05
Abstract: To regulate the temperature of heating cartridges automatically, specific devices, such as temperature detectors (sensors) were previously provided, which, however, cause additional technical outlay. In addition, this sort of heating cartridge has a relatively long warm-up time (heat-up time). For low levels of temperature it is also known to use heating cartridges with PTC thermistor heating elements which are self-regulating but cannot be used at higher temperature levels, as already mentioned. It was therefore the object of the present invention to create a heating cartridge of short warm-up time which has a reliable self-regulating effect even at higher temperature levels. According to the invention, this object is achieved in that the heating conductor of the cartridge is produced from an alloy which starts from a nickel basis and has a temperature coefficient Tk larger than 200 %. <IMAGE>
Patent DE-3833252-A1 (DE)
Title: Trolley
Inventor: EBERLEIN HERBERT DIPL ING
IPC: B62B5/04
Filed: 1988-09-30
Abstract: In the case of a trolley (1) having in each case one spring-actuated brake linkage (9) leading through two upright hollow pillars (4) to the rear wheels, the push handle (6) is mounted pivotably on bearings (13), which are seated on the hollow pillars (4), and is connected to the brake linkage (9). An articulated part (23) is attached to each of the two ends of the push handle (6). The articulated parts (23) are mounted in the bearings (13) in a manner such that they can pivot about a common, horizontal axis (7). The articulated parts (23) and the brake linkage (9) are connected to each other in each case by a flexible tension part (28), each bearing (13) and each articulated part (23) having an interior (19) which is covered to the outside and is intended for receiving a portion of the tension parts (28). <IMAGE>
Patent DE-3835541-A1 (DE)
Title: Catalytic converter for the exhaust emission control of internal combustion engines
Inventor: SCHUSTER HANS-DIETER DIPL ING
IPC: F01N3/28
Filed: 1988-10-19
Abstract: A catalytic converter for internal combustion engines is described, a ceramic body surrounded by an elastic steel wire knitted fabric is arranged under preloading in a sheet metal casing. The sheet metal casing has a trapezoidal cross-section and in at least two peripherally offset locations in its cross-section has - viewed from outside - concavely shaped wall sections.
Patent DE-3841267-A1 (DE)
Title: Doppler radar sensor
Inventor: BOHEIM MANFRED DR
IPC: G01S13/92
Filed: 1988-12-08
Abstract: The invention relates to a Doppler radar sensor for detecting Doppler echoes from objects which move essentially in a plane in the region in which the sensor acts. The sensor transmits a polarised signal and is aligned with its main radiating direction directed at a point in the movement plane of the objects, which point passes at least one or some of the moving objects and reflects back part of the signal as a Doppler echo into the sensor. The sensor processes only that component of the reflected-back Doppler echo whose polarisation is orthogonal to the polarisation of the transmitted signal. The transmitted signal is linear-polarised. The polarisation plane is in this case in a right-angled coordinate system whose X-axis corresponds with the main radiating direction of the sensor and whose Y-axis is at right angles to the X-axis and is aligned parallel to the movement plane of the objects, and whose Z-axis is at right angles to these two axes, rotated through an angle of + alpha  or - alpha  with respect to the Z-axis, where 0 <  alpha  <  pi /2, and alpha  is preferably approximately 45@.
Patent DE-3842918-A1 (DE)
Title: Method of controlling the sequence of movement of a load held in a pendulous manner
Inventor: SCHOENENBERGER URS DIPL ING
IPC: B66C13/06
Filed: 1988-12-21
Abstract: The method serves to control the sequence of movement of a load held in a pendulous manner on a rope (3), variable in length, of a lifting appliance and displaceable in the horizontal direction by a travelling crab (2). Here, the load (4) is accelerated gradually via the travelling crab (2) in such a way that, after the acceleration phase, it is guided at constant speed virtually free of oscillation in the direction of movement of the crab (2). This method is to be optimised in such a way that the sequence of movement of the load (4) can take place especially rapidly and therefore especially short loading and unloading times can be achieved by the lifting appliance. This is achieved by the length of the rope (3) being varied during the acceleration phase. <IMAGE>
Patent DE-3842996-A1 (DE)
Title: Method for adjusting the water level, especially in domestic washing machines and device for carrying out the method
Inventor: HENNINGER ALFRED DIPL ING
IPC: D06F39/08
Filed: 1988-12-21
Abstract: To reduce the water and energy consumption, the washing levels of appliances under discussion are to be reduced. At the same time it must be ensured that the heating can be switched on only when the heating rod is sufficiently covered with water. For this purpose, and for the adjustment of a washing level, known appliances need at least two pressure switches responding to different water levels. In the method according to the invention, a single pressure switch undertakes this function. The pressure switch (P) has a switch-on contact (TR) and a switch-over contact (N2) which are coupled to each other. (TR) monitors the circuit of the heater (H) and controls the heating-rod-covering (going dry) level (FTRon-off). (N2) is in the control loop of the machine and controls the supply solenoid valve (MV) and the washing level (FN2in-out). The method according to the invention can be used for domestic washing machines with a reduced washing level. <IMAGE>
Patent DE-3901073-A1 (DE)
Inventor: DOTZAUER BERNHARD DR
IPC: E04D1/28
Filed: 1989-01-16
Abstract: A concrete roof tile is coated with an unfilled or aggregate- and/or pigment-filled film of a copolymer containing (a) from 0.03 to 2% by weight of tin in the form of a polymerizable organotin compound (b) from 0.5 to 5% by weight of (meth)acrylic acid, (meth)acrylamide and/or vinylsulfonic acid and (c) from 0.1 to 5% by weight of carbonyl-containing monomers crosslinked with certain dicarboxodihydrazides, besides (d) at least two (meth)acrylic esters of C1-C8alkanols and/or styrene as copolymerized units in such an amount and such mixing ratios that the copolymer has a glass transition temperature of -15 to +10 DEG  C. prior to crosslinking.
Patent DE-3911060-A1 (DE)
Title: Process for reducing the iron content of molten zinc
Inventor: SOLMS JUERGEN DIPL ING
IPC: C23C2/06
Filed: 1989-04-06
Abstract: When the saturation limit of molten zink for iron is exceeded, solid iron-zinc crystals precipitate, the so-called hard zinc which settles on the bottom of the vessel and must be removed from time to time in order to preserve the maximum immersion depth of a galvanisation vessel and to protect the material to be galvanised from contamination by the hard zinc crystals. The formation of hard zinc causes considerable process engineering disadvantages in galvanisation establishments, such as a high zinc consumption, quality defects in the material galvanised, cleaning effort, etc. By means of treating the hard zinc melt with a slag containing silicon and aluminium, the iron content of the melt is reduced by the formation of an iron-silicon-aluminium compound, floating on the melt, to low values and the recovery of the zinc is thus made possible.
Patent DE-3911247-A1 (DE)
Title: Process for recovering phenols from their mixtures
Inventor: POLACZEK JERZY DR
IPC: C07C37/86
Filed: 1989-04-07
Abstract: The invention relates to a process for recovering phenols from their mixtures, in particular from mixtures originating from coal. In this process the phenol-containing crude starting material is treated with solid urea, the mother liquor, which contains inert constituents and thiophenol, is separated off from the crystalline phase and the crystalline phase is then slowly heated and a xylenol-urea complex fraction, a cresol-urea complex fraction and a phenol-urea complex fraction are separated off in turn and the individual phenol fractions are liberated from the individual complexes by heating to a temperature above 70@C.
Patent DE-3911763-A1 (DE)
Inventor: BERGHOF HANS-JOACHIM
IPC: B60N2/48
Filed: 1989-04-11
Abstract: A shoulder support (10) is mounted on the upper portion of a backrest of a backrest frame (11) and is adjustable and lockable by means of a positioning device. The positioning device comprises on each long side of the frame (11) a positioning slide (20) displaceable in respect of and in the longitudinal direction of the backrest frame, a positioning rocker (13) which can be pivoted by the positioning slide (20) and, so that the shoulder support can be adjustable in height, a support slide (17) interposed between the positioning slide (20) and the backrest frame (11) and mounted for longitudinal displacement on the backrest frame and with respect to the longitudinally displaceable positioning slide (20). <IMAGE>
Patent DE-3915428-A1 (DE)
IPC: B28B21/98
Filed: 1989-05-11
Abstract: In a process for manufacturing gas-tight aluminium tubes suitable for carrying out catalytic high-temperature reactions, powdered aluminium oxide is mixed with water, a binder and a plasticizer, and the mixture is deformed by drawing a hank into a cylindrical green body, which is then deformed in at least two places so that the circular cross-section of the tube becomes approximately ellipsoidal. The deformed green body is dried and sintered at 1740 DEG C. Excellent mixing of the gas in the tube is achieved as a result of the constrictions in the cross-section.
Patent DE-3915922-A1 (DE)
Title: Method and device for stabilising and supporting rock
Inventor: SVRCULA MILAN
IPC: E21D21/00
Filed: 1989-05-16
Abstract: In a method for stabilising and supporting rock, a borehole of sufficient length to insert a self-clamping rock bolt is made in the surrounding rock. Inserted into the borehole is a double-curved, hydraulic, self-clamping rock bolt which has at least one locking element at the end section inserted into the borehole. A grouting medium is fed at increased pressure into the rock bolt in order to clamp or tension the latter inside the borehole. The pressure of the grouting medium is increased until the grouting medium, after a limit value predetermined by the locking element is exceeded, comes out of the rock-bolt end section inserted into the borehole, enters the adjacent surrounding rock and solidifies there.
Patent DE-3917048-A1 (DE)
Inventor: MORENO DAMASO
IPC: B65D75/12
Filed: 1989-05-25
Abstract: A folding package (10) is produced from a single foil web (12) which is folded around an article to be packed and then sealed in such a way that the article is hermetically sealed by it on all sides. Here, the closure is made by adhesively securing the opposite edge regions of the foil web which border the inner region thereof. According to the invention, two opposite edge regions (26, 28) have at least one area (50, 60, 72, 74) which does not adhere permanently, whereby these areas overlap (29) in when the foil is folded to form a package (10), and one of these two edge areas (50, 72) is partially physically separated from the remaining edge region (26) along its peripheral line (54, 70, 52). The adhesive layers (40, 42) lie between these two areas (50, 60 or 72, 74) and the inner region (22, 14, 16, 18, 20) so that the inner region is laterally completely surrounded by the adhesive layers (40, 42).
Patent DE-3918194-A1 (DE)
Inventor: JONES ROBERT
IPC: G01P15/093
Filed: 1989-06-03
Abstract: An accelerometer contains a mass (28) suspended on springs (29) in a rigid holder (20). The mass can move linearly in a (+/-Y) direction. The position of the mass is measured by an optical sensor (33, 34). In order to compensate the interferences due to temperature fluctuations, the support (20), the mass (28), the springs (29) and the optical sensor (33, 34) are arranged so that their thermally neutral planes, from which they extend symmetrically in the (+/-Y) direction of movement of the mass (28), lie in a common principal (XZ) plane.
Patent DE-3921106-A1 (DE)
Title: Operating normally aspirated IC engine - uses air suction manifold to generate accelerating air vol. upstream of fuel mixing zone
Inventor: LEISTRITZ HANS KARL DR
IPC: F02M31/04
Filed: 1989-06-28
Abstract: A multi-cylinder, normally aspirated, fuel-injection or carburettor i.c engine, has an exhaust manifold forming a thrust nozzle.  In operation, each cylinder has a separate intake pipe, with a specially dimensioned oblong section upstream of the mixing zone. From a cold start, the pipe forms an intake air vol.  accelerating at an increasing or decreasing rate, dependent on load.  As engine speed rises, the inherent kinetic energy increases carburation efficiency, allowing practically complete combustion in the engine combustion chamber and small separate explosions in the exhaust manifold. ADVANTAGE - Improved air-charge, and reduced pollution.
Patent DE-3921777-A1 (DE)
Title: Foam sealing strip for building joints - has open-cell foam strip covered by foil of U-shaped cross-section, with one shank coupled to strip
IPC: E04B1/684
Filed: 1989-07-01
Abstract: The joint between adjacent building blocks is sealed by a foam sealing strip (3).  The sealing strip is folded along a central line (3c) so that a double thickness (3b) fits between adjacent vertical surfaces.  The strip is then folded outwards and then upwards on each side to form a seal between the horizontal faces of blocks placed one upon another.  A second strip is fitted between the block of the row immediately below, but inverted w.r.t.  the strip sealing the joint, of the upper row of blocks. ADVANTAGE - Improved seal with extra moisture-proof effect.
Patent DE-3923186-A1 (DE)
Title: Rope payout winch - for aircraft drag targets with tow rope of reinforced optical fibre with spiral spring
Inventor: SPICER LYNDON REGINALD
IPC: G02B6/44
Filed: 1989-07-13
Abstract: The rope for an aircraft drag target is paid out from a winch (1) which is supported in the bearings (2) of a fixture (3). The hollow hub (4) carries a wound-up composite tow-rope (5) which consists of an optical fibre cable, reinforced by a tensile strength element. A flat spiral spring (6) is attached between mount (2) and inside hub (4). One edge of this spring (6) carries a not reinforced flexible optical fibre (7), one end of which is joined to the wound-up optical fibre cable and the other to the optical connector (8) on the solid mount (3). The composite tow rope (5) has aramide fibres, stranded on an optical fibre in the opposite direction, with a primary coating of a silicone elastomer and the two rope can have an outer sleeve of an extruded elastomer. The optical fibre is a glass fibre with a triple coating of plastic material. ADVANTAGE - This overcomes all problems in the pay-out of tow ropes for aircraft drag targets and requires no sliprings.
Patent DE-3929738-A1 (DE)
Inventor: VIETH ALFRED
IPC: F04D29/32
Filed: 1989-09-07
Abstract: PCT No. PCT/DE90/00604 Sec. 371 Date Feb. 25, 1991 Sec. 102(e) Date Feb. 25, 1992 PCT Filed Aug. 6, 1990 PCT Pub. No. WO91/03648 PCT Pub. Date Mar. 21, 1991.The invention is directed to an impeller of an axial-flow type fan, in particular for appliances for drying and dressing hair, in which adjacent blades overlap each other completely over the radial extent of the blades in the edge regions of the blades. To ensure that the injection-molded impeller is capable of being ejected from the mold, the angle of opening is required to be smaller than or equal to the angle of rotation.
Patent DE-3936017-A1 (DE)
Title: Combined domestic refrigerator and freezer - has cold pack fluid container incorporated in freezer or refrigerator compartment
Inventor: BLANKEN DIETER
IPC: F25D11/00
Filed: 1989-10-28
Abstract: The combined refrigerator and freezer has one cold pack fluid container (15) housed within the refrigerator (11) or freezer compartment (12) and used to extend the duration for which the food can be held at the required temp. upon failure of the electrical supply. Pref. the container (15) is integrated in the door (13) of the freezer compartment (12), e.g. within a recess (14) provided on the inside of the freezer door (13) and is secured in place by releasable retaining clips. Alternatively the container (15) is directly attached to the top wall of the refrigerator (11) or freezer compartment (12). ADVANTAGE - Holds food at correct temp. upon current failure.
Patent DE-3939876-A1 (DE)
Title: Foil thickness-thermal property contactless measurement device - has head connected to heat source and thermal radiation receiver via optical conductors
Inventor: BEYFUSS MARTIN DIPL PHYS
IPC: G01N25/72
Filed: 1989-12-01
Abstract: An arrangement for contactless measurement of the thickness and/or thermal properties of foils and thin surface coatings uses intermittent thermal conduction.  It has a heater (Hc) which generates intensity modulated heating radiation (Hs) directed at the measurement object (Mo) and a receiver (Se) of the thermal radiation (St) from the object. The heating radiation is directed at the object by a measurement head (Mk) which is connected to the heater (Hc) and radiation receiver (Se) via flexible light conductors (L11,L12). USE/ADVANTAGE - For contact less measurement of foil thickness and/or thermal properties can be flexibly applied under manufacturing conditions.
Patent DE-3940331-A1 (DE)
Inventor: HAASE JUERGEN DR
IPC: C07C2/86
Filed: 1989-12-06
Abstract: The invention relates to a process for the preparation of p-aralkylbiphenyls by aralkylation of biphenyl, which process is characterised in that aralkylation is carried out on a catalyst of the montmorillonite type having a specific surface area of at least 110 m<2>/g. By means of this catalyst, high selectivity of the reaction with respect to the p isomers is achieved.