baber/WOPTO huggingface dataset:
Patent DE-3739341-A1 (DE)
Inventor: JAEGER ULRICH PROF DIPL ING
IPC: B65B63/02
Filed: 1987-11-20
Abstract: Web-like products (6), in particular films and fibre-based products, are introduced to a compaction space (5) which is bounded by a plurality of rotating rollers (1a-1d) and is formed into a roll (7) as a result of the transmission of force of the rotating rollers (1a-1d) and guided out of the compaction space (5). <IMAGE>
Patent DE-3739677-A1 (DE)
Title: Device for cooling a compressor with cooling air
Inventor: SCHOENFELD KARL-HEINRICH DR IN
IPC: F04B39/06
Filed: 1987-11-24
Abstract: In known devices, a movement of air generated by a fan impeller arranged in the drive-gear casing and driven by the drive gear is used in an attempt to dissipate the heat from the said drive-gear casing. However, there are limits to the increase in power possible with a compressor provided with cooling of this kind. The object of the new cooling device is to achieve an increase in the power of the compressor by improving the heat dissipation from the drive-gear casing. The invention uses the intake-air flow of an internal combustion engine to generate a flow of cooling air through the interior (16) of the drive-gear casing (5) by having the internal combustion engine (20) draw in its combustion air through the drive-gear casing (5) of the compressor (1). An air-intake filter (17) which is connected to the air inlet (14) of the drive-gear casing (5) and simultaneously serves as an engine intake filter ensures that the flow of cooling air in the drive-gear casing (5) is free from dust. The device is suitable for compressors in vehicles or in stationary plant equipped with internal combustion engines. <IMAGE>
Patent DE-3742332-A1 (DE)
Title: Measurement cell for integral experimental reactors for studying heterogeneously catalytic processes
Inventor: SCHMOZ GUENTER DIPL CHEM
IPC: B01J8/02
Filed: 1987-12-14
Abstract: Measurement cell for integral experimental reactors for studying heterogeneously catalytic processes in chemical research, in particular for the measurement of the parameters of state temperature, concentration, pressure in bulk catalyst through which gas flows. The measurement cell shown in Fig. 1 has a modular structure. It comprises a mountable base body and measurement probes which can be radially introduced, sealed on the outside with glands and inside arranged directly in the fixed bed in any axial and radial positions. The pressure measurement is carried out in a ring channel of the cell. The measurement head of the temperature measurement probe is in the form of a fluid-permeable basket in the centre of which there is located the active measuring point of a thermocouple. The head of the concentration measurement probe likewise comprises a fluid-permeable basket or is configured as a cap orifice. <IMAGE>
Patent DE-3742766-A1 (DE)
Title: Process and appliance for mechanical production of box-less casting mould sections consisting of facing sand and filler sand containing environmentally safe binders
Inventor: BUEHLER EUGEN DIPL ING
IPC: B22C15/23
Filed: 1987-12-17
Abstract: The mechanical manufacture is presented of casting moulds, especially of cylindrical moulds having a mould area of less than 1 m<2>, according to the two-sand method. This involves using the facing sand and the core sand, respectively, only in very thin layers in the moulds and the cores, and filling in (backing up) with reprocessed filler sand (backing sand, back-up sand). The binders used for the various sands are limited to environmentally safe, non-toxic substances, specifically preferably inorganic clay binders and water-glass binders. However, it is also possible to use demonstrably non-hazardous organic binders, e.g. the duroplastics cured with reaction gases such as methylformate or acetate. The invention provides for a considerable reduction in used-sand landfilling costs.
Patent DE-3805443-A1 (DE)
Inventor: STRATHMANN HEINZ
IPC: F16J15/3284
Filed: 1988-02-22
Abstract: A seal for sealing between outer and inner parts, having a fixing portion and a sealing portion with at least one sealing lip, has its fixing portion and/or its sealing portion provided with a magnetised material so as to be magnetically attracted to the part it engages. Preferred embodiments are main seals 20 or secondary seals 19 for the journals and bearing cups of Hookes universal joints. <IMAGE>
Patent DE-3809745-A1 (DE)
Title: Wheelchair
Inventor: MATTHECK CLAUS DR
IPC: A61G5/00
Filed: 1988-03-23
Abstract: A wheelchair having a frame which comprises two side pieces and connecting elements for the latter and can be folded together perpendicular to the travel direction, rear wheels provided on its outside, a seating surface, a backrest and armrests on the frame, support wheels pivotably mounted on the frame in front of the rear wheels and having a smaller diameter, and a foot support surface located in front of the seat in the region of the support wheels. The side pieces 1, 2 are made of a pipe which is bent in the shape of a lying S. The upward-pointing end 7 of the S is allocated the backrest 12, while the downward-pointing end 8 is allocated the foot support surface 11 and the bearing of the front wheels 16. The axle of the rear wheels 4 is fastened in the region of the downward-pointing curvature 3 of the S. One or more tensioning straps 13, 14, 15 may be tensioned between the two ends of each curvature 3 and 5 of both S, the tension of these straps counteracting the bending outwards of the S. <IMAGE>
Patent DE-3811854-A1 (DE)
Title: Device for four-pin contacting
Inventor: FLESSA KLAUS
IPC: G01R31/26
Filed: 1988-04-08
Abstract: A device for four-pin kelvin contacting of two-pin components has a first pair of contact springs (21, 22) and a second pair of contact springs (23, 24), the contact springs (21-24) of which can be spread apart in each case in the direction of guide slots (18, 19) when an operating lever (28) is pressed so that an SMD component (27) can be contacted by four pins when the operating lever (28) is released and the spring contacts (21-24) of the pairs of contact springs approach each other again and rest against the contact surfaces (25, 26) of the SMD component (27). <IMAGE>
Patent DE-3813834-A1 (DE)
Title: Automatic firing device
Inventor: HANGAUER WILFRIED DR
IPC: F23N5/24
Filed: 1988-04-23
Abstract: Automatic firing device for a gas-heated water heater, whose burner is fed from a gas line provided with a solenoid valve which is controlled by a solenoid valve relay. The coil of the solenoid valve relay is excited during the ignition process via a pull-in circuit, and during operation via a holding circuit. Provision is made of a flame detector and of a switch arranged in the pull-in circuit and of a safety switch which is looped into both circuits and in which, in accordance with the invention, the excitation of the relay coil (45) is performed by a reversible constant-current source (43). <IMAGE>
Patent DE-3813935-A1 (DE)
Inventor: ACHREMKO ALEKSANDR VLADIMIROVI
IPC: H01H1/58
Filed: 1988-04-25
Abstract: A switching device for an electronic watch, comprising a conducting rotor (1) mounted for rotation through discrete angular steps, having contacts (2) in a number equalling 2<n-1> where n>3 is the number of the switchable conductors (4) of the circuit board (3) of the electronic unit, arranged in the engagement zone of the contacts (2) of the conducting rotor (1) asymmetrically with respect to its axis of rotation at relative angular spacings which are integers of  pi /2<n-1>, their arrangement in the plane of rotation of the rotor (1) with respect to its contacts (2) being such that in one angular position of the rotor (1) all the switchable conductors (4) are engaged by the contacts (2) of the rotor (1), and in another angular position none of the switchable contacts (4) is engaged. The electric connection of the conducting rotor (1) with one pole of the power source is established through a conductor (7) accommodated on the circuit board (3) of the electronic unit in the engagement zone of the contacts (2) of the rotor (1), in areas free from the switchable conductors (4), its arrangement in the plane of rotation of the rotor (1) being such that in each angular position of the rotor (1) it is engaged by at least one of the contacts (2) or the rotor (1). <IMAGE>
Patent DE-3816071-A1 (DE)
Title: Chair, in particular swivel chair
Inventor: LITEWKA JACK
IPC: A47C1/03
Filed: 1988-05-11
Abstract: A chair, in particular swivel chair, with armrests, is characterized in that each armrest is fixed to an armrest support so as to be rotatable about at least two, preferably three vertical axes. The armrest preferably has an elbow support, adapted to the size of an elbow, for supporting the elbow joint.
Patent DE-3816645-A1 (DE)
Title: Glass pane
Inventor: JORDAN PAUL DIPL ING
IPC: E06B3/54
Filed: 1988-05-16
Abstract: The invention relates to a technical solution for providing glass panes which are made more secure with respect to breaking out and falling downwards in specific cases, for example in the event of disasters and the like, to be precise in that wire inserts are installed in all, or only in part, of the border portions.
Patent DE-3820477-A1 (DE)
Inventor: BAAS DIETER
IPC: G11B19/28
Filed: 1988-06-16
Abstract: PCT No. PCT/EP89/00590 Sec. 371 Date Feb. 12, 1990 Sec. 102(e) Date Feb. 12, 1990 PCT Filed May 26, 1989 PCT Pub. No. WO89/12932 PCT Pub. Date Dec. 18, 1989.A phase control circuit in which a first phase comparator compares an input frequency with a reference frequency. The output of the first phase comparator is connected to a controlled oscillator through a control stage. A second control stage is also connected to the input of the controlled oscillator which has an output connected to a second phase comparator which receives also the reference frequency at an input. The output of the second phase comparator is connected to an input of the second control stage. The first control stage is separated from the controlled oscillator to compensate the circuit automatically. The second control stage varies its output until the frequency at the controlled oscillator output equals the reference frequency. The second control stage maintains this level subsequent to compensation independent of the output from the second phase comparator, and the first control stage is reconnected to the input terminal of the controlled oscillator.
Patent DE-3827085-A1 (DE)
Title: Thermally activated mattress for decubitus prophylaxis and decubitus rehabilitation
Inventor: WALDNER MICHAEL
IPC: A61F7/00
Filed: 1988-08-10
Abstract: Published without abstract.
Patent DE-3833275-A1 (DE)
Title: Adjusting and measuring device for detachable connectors of optical waveguides
Inventor: BACHL JOHANN DIPL ING
IPC: G02B6/38
Filed: 1988-09-30
Abstract: Devices which are used to adjust or determine the core position of an optical waveguide (1) mostly had until now an optics, in particular a microscope. The method of determining or aligning the position of the fibre core of an optical waveguide (1) with respect to the corresponding connector pin (2) by measuring the injected light intensity between two optical waveguides (1), which mutually face each other with their end faces, as a function of the displacement of the optical waveguide (1), which is to be adjusted, transversely with respect to its axis, usually involves the use of a master connector (7). According to the invention, no optics whatsoever is used between the optical waveguides (1). A master connector (7) is used. The essential feature of the invention is a fitting sleeve (4) which provides approximately the same conditions as a connector, for example a connector sleeve. The fitting sleeve (4) is designed in terms of construction in a particular manner by a slot (5) and by cutouts (6) for adjusting and determining the core position of an optical waveguide (1), for the specific displacement of the optical waveguide (1) with respect to the corresponding connector pin (2) by means of a gripper (11). <IMAGE>
Patent DE-3834018-A1 (DE)
Title: Method for changing currency units by means of a money changer and money changer for carrying out the method
Inventor: SOEBY SVEN OVE
IPC: G07D1/04
Filed: 1988-10-06
Abstract: The invention relates to a method for changing currency units by means of a money changer and to a money changer for carrying out the method. The money changer, before being started up, is filled with a quantity of unsorted coinage via a coin insertion. The sum of the coinage is entered in a memory of a microcomputer according to the size and type of coins. For dispensing a predetermined quantity of money, a quantity of money equivalent in value is introduced as coinage through the coin insertion and/or as banknotes into a banknote-changing device or as a digital number statement by means of a coded identification card. The value quantity introduced is entered in a data memory of the microcomputer according to the size and type of the money. Then, by means of a hopper, unsorted coinage is fed from the coin container to a coin tester, guiding coins to a pay-out tray or into the coin container again according to size and quantity in dependence on coin values predetermined by the microcomputer, until the paid-out part quantity of unsorted coinage corresponds to the sum to be paid out.
Patent DE-3836485-A1 (DE)
Title: Hydrostatic transmission
Inventor: BACKE WOLFGANG PROF DR ING
IPC: F16H43/00
Filed: 1988-10-26
Abstract: A hydrostatic transmission comprises a variable-displacement pump which is connected via working lines to a double-acting drive. A static pressure level is produced in the working lines by a separate pressure-medium source and the drive is thus hydraulically preloaded. The loading of the drive leads, by deflection of the variable-displacement pump, to a pressure difference in the working lines and, due to the increased pressure level, to a symmetrical shift in the pressures. According to the invention, the working lines are connected to the separate pressure-medium source by way of a control valve.
Patent DE-3840166-A1 (DE)
Title: Films comprising mixtures of specific, novel polycarbonates with other thermoplastics or with elastomers
Inventor: FREITAG DIETER DIPL CHEM DR
IPC: C08L69/00
Filed: 1988-11-29
Abstract: Films comprising mixtures containing   a) thermoplastic polycarbonates based on diphenols of the formula (I)   <IMAGE>  in which   R<1> and R<2>, independently of one another, are hydrogen, halogen, C1-C8-alkyl, C5-C6-cycloalkyl, C6-C10-aryl or C7-C12- aralkyl,   m is an integer from 4 to 7, R<3> and R<4>, individually selectable for each X, are, independently of one another, hydrogen or C1-C6-alkyl, and   X is carbon, with the proviso that R<3> and R<4> on at least one atom X are simultaneously alkyl, and b) elastomers or thermoplastics other than component a), and optionally   c) conventional additives, having a thickness between 1 and 3000  mu m.
Patent DE-3840977-A1 (DE)
Title: Hot-water storage apparatus
Inventor: BERG JOACHIM
IPC: F24D3/08
Filed: 1988-12-06
Abstract: The storage space of a continuous-flow hot-water storage apparatus is subdivided by a baffle wall (5), extending over only part of the height of the storage apparatus, into an annular outer space (6) containing a heating coiled pipe (2) and a central inner space (7) enclosed by the baffle wall (5), from the inner region of which inner space the hot water-drawing conduit (8) proceeds. The central inner space (7) is bounded at the bottom by a baffle-wall bottom (9) which adjoins the lower edge of the baffle wall (5) and has an opening (10) located coaxially opposite the mouth (11) of the cold-water supply conduit (12) arranged in the bottom of the storage apparatus. Provided between this opening (10) of the baffle-wall bottom (9) and the mouth (11) of the cold-water supply conduit (12) located opposite it is a control member (13) which is automatically adjustable by the water pressure and can consist of a valve element or a diaphragm (16). In the recharging mode of the storage apparatus, this control member (13) - if need be - keeps the cold-water supply conduit (12) closed and the opening (10) in the baffle-wall bottom (9) open, so that the water can circulate within the storage apparatus. <IMAGE>
Patent DE-3902258-A1 (DE)
Title: Apparatus for storing liquid
Inventor: KUBICKI ROBERT DIPL ING
IPC: F24D3/10
Filed: 1989-01-26
Abstract: Inside a vessel for storing liquid with a gas cushion above the liquid level there is provided an overflow which is connected via a U-shaped standpipe to an outlet (13) guided out of the vessel (1). The pipe limbs (9, 10) of the standpipe are connected on both sides of a lower U-pipe bend (8) by an overflow conduit (14) which rises in the flow direction. <IMAGE>
Patent DE-3904435-A1 (DE)
Inventor: FRANCKOWIAK SIGISMOND
IPC: C10G11/18
Filed: 1989-02-14
Abstract: A process for the catalytic cracking of a hydrocarbon charge comprises contacting the charge with a catalyst in a column (1) of a unit, separating the catalyst from the reaction effluents in a separator (10), stripping the used catalyst and regenerating said catalyst, in which pure oxygen is added (through line 31) to the stripping gas, which generally consists of steam, the stripping gas/oxygen ratio by volume ranging from 1 to 20, the proportion of oxygen thus used as make-up gas being from 1 to 50% with respect to the total amount of oxygen consumed in the unit. <IMAGE>
Patent DE-3911793-A1 (DE)
Title: Coupling unit for clutch release bearings, particularly for a motor vehicle
Inventor: FEIGLER JACQUES
IPC: F16D23/12
Filed: 1989-04-11
Abstract: This coupling unit comprises a coupling piece (16) with a collar (17) by which it rests on the diaphragm of the clutch to be equipped, a sleeve (18) for insertion through the central opening in the diaphragm, and, for the attachment of a clutch release bearing, a coupling ring (20) which is elastically deformable in the radial direction and is open on one side, having two legs (21A, 21B) at this point. According to the invention, the two legs (21A, 21B) of the coupling ring (20) are hooked into one another elastically outside the sleeve (18) of the coupling piece (16) in such a way that, under load, the said coupling ring (20) is completely closed at the circumference. The coupling unit is intended for coupling a clutch release bearing to the diaphragm of a clutch, particularly for a motor vehicle. <IMAGE>
Patent DE-3918408-A1 (DE)
Title: Electric bridge initiator fuse with inductive meander line - has conductive track broken for insertion of two fusible bridges between symmetrical halves of induction coil
Inventor: SPIES HANS
IPC: F42B3/14
Filed: 1989-06-06
Abstract: On a pref. polyamide insulating bridge carrier, the flat conductive track (15) is laid with electrical and mechanical connections from its beginning and end to contact terminals (4-6). To form the sparking section (19,27), the track (15) is interrupted and fusible bridges (17, 25) are inserted. Over all or part of its length the track (15) may follow a meandering course to form the induction coil (28,28') with symmetry about an axis through the central contact terminal (5).  The device fits into a standard transistor package. ADVANTAGE - Easily mfd. device affords high EMC security and precise ignition behaviour.
Patent DE-3919391-A1 (DE)
Inventor: LUDWIG HORST PROF DR
IPC: A61L2/02
Filed: 1989-06-14
Abstract: The invention relates to a sterile material, a process for sterilisation, and packaging of the material.
Patent DE-3922828-A1 (DE)
Title: Duplication of dental model - involves making plaster impression of master model for use as mould
Inventor: BAUMANN KARSTEN U
IPC: A61C11/08
Filed: 1989-07-08
Abstract: In producing a dental prosthesis, a master model is made of the patient's jaw and teeth. This master model (30) is then duplicated by mounting it on a base (28) which is mounted on the arm (12) of an articulator. A trough (32) is mounted no a support on the other arm (10) of the articulator. This trough is filled with plaster of Paris and the upper arm (12) of the articulator is swung downwards pressing the master model (30) into the plaster. When the plaster has hardened the master model is removed and the plaster, which has received an impression of the master model is then used as a mould to case a duplicate. USE - Prodn. of dental prosthesis using duplicate model.
Patent DE-3924817-A1 (DE)
Inventor: GROSS HANS DIPL ING
IPC: B60K7/00
Filed: 1989-07-27
Abstract: A drive, in particular for wheel-chairs or the like, comprises an electrically powered driving motor (3) with a stator (15), a rotor (16) with a driving shaft (17), and a gearbox with a driven shaft (61) connected with the driving shaft (17) of the rotor (16). The driven shaft (61) of the gearbox (2) is connected to a wheel (9). To obtain a drive of low height and hence a larger empty space inside the wheel-chair frame, the drive is designed as a wheel hub drive (1) the gearbox (2) of which is designed as a multistage planetary drive (47 and 53) with a power branch. The wheel hub drive (1) is very compact. Electrically powered wheel-chairs in which this space-saving drive is installed can therefore be equipped with batteries of greater capacity and are consequently more powerful.
Patent DE-3927183-A1 (DE)
Title: Controlling alkali digestion of cellulosic material - by determining volatile acid concn. ratio in liquor
Inventor: RAIMO ALEN
IPC: D21C3/02
Filed: 1989-08-17
Abstract: In the control of alkali (esp. sulphate and caustic soda) digestion of cellulosic material, the novelty is that the volatile acids, formed during lignin decompsn., are analysed and the time required to achieve the desired digestion level is determd. on the basis of the concn. ratio of the volatile acids reporting in the waste liquor. ADVANTAGE - The digestion process control is easily carried out and improved conformity with the desired digestion level is achieved.
Patent DE-3935445-A1 (DE)
Title: Purifying waste water contg. volatiles, esp. hydrocarbon(s) - by treating with current of air in appts. comprising desorption column at reduced pressure and adsorption column
IPC: C02F1/20
Filed: 1989-10-25
Abstract: In purification of water contaminated with volatile substances, esp. volatile hydrocarbons, by treating the waste water in a desorption column with air in a pre-determiend amt., withdrawing the pure water, and leading the loaded air to an adsorption column, from which it issues pure air, the desorption column is operated under reduced pressure, the  loaded air is fed through a pump which maintains the reduced pressure in the desorption column, and presses the loaded air into the adsorption column. The appts. has a desorption column (1), an adsorption column (2), a feed (3) for the waste water, an outlet (4) for pure water and an air inlet (5). The air inlet is a closed cycle with a reduced pressure part and a pressure part, sepd. by a pump (7) and a pressure release device (8), with the desorption column (1) arranged in the reduced pressure part and the adsorption column (2) in the pressure part. The air inlet (5) has control and  regulating devices for the reduced pressure and the pressurised part, and these can be adjusted. ADVANTAGE - The amt. of the air stream does not have to be increased when the waste water shows peak loading. The appts. is smaller.
Patent DE-3941929-A1 (DE)
Title: Variable position multiplying circuit - includes switch with four OR=gates, each with two inputs and seven diodes
Inventor: MERKLE PAUL
IPC: G06F7/491
Filed: 1989-12-19
Abstract: The main circuit consists of 28 product and circuits, each with 2 inputs and 26 diodes. One OR circuit has 5 inputs, another 4, another 3, another 4, and a further one 5. The input circuit consists of 9 AND circuits, each with 2 inputs and 4 AND circuits, each with 2 inputs and 7  diodes. The code conversion circuit consists of 9 AND circuits, each with 2 inputs and 2 inverters and an OR circuit with 4 inputs. ADVANTAGE - Improvement on previous patent which had a  failing in that not all the necessary diodes were present.