baber/WOPTO huggingface dataset:
Patent DE-3806968-A1 (DE)
Title: Method and circuit arrangement for generating a regulated compensating voltage from a higher input DC
IPC: G05F1/595
Filed: 1988-03-03
Abstract: In a stabilised output DC (+) of predetermined value from a load-dependently fluctuating input DC, it is known to drop the difference voltage across an output regulating unit (IC202). This must be able to correct the entire range of fluctuation of the input DC and completely absorb the power loss occurring due to the voltage drop. The reliability of the overall arrangement depends on the operation of one regulating unit. These problems are eliminated in that the input DC is reduced step by step to the output DC (+) via a series circuit of a number of voltage regulating units (IC200-202). A uniform distribution of the voltage drop across the regulating units (IC200-202) is particularly advantageous in this connection. Circuit arrangements for this exhibit differential amplifiers (Tr. 201-203) and resistive voltage dividers (R206, R207). Preferred applications are power supplies and DC converters, particularly in industrial areas having high safety requirements such as, for example, for mining equipment. <IMAGE>
Patent DE-3814139-A1 (DE)
Title: Transfer device for the workpieces on a press
Inventor: JUNKLEWITZ HUGO DIPL ING
IPC: B21J13/08
Filed: 1988-04-27
Abstract: A transfer device (1) for conveying pins (studs) (2) or the like from a furnace (25) into a press (8). The transfer device has controlled tongs (14, 16) which are moved into the closed position by spring loading (37). The device operates cyclically. The tongs (14, 16) are opened by control means (28, 12, 10, 18, 22, 35). The transfer device (1) rotates cyclically about an axis (9) of rotation and is mounted on a hollow shaft (20) in which a shaft (10) is accommodated in a manner which allows it to move. The transmission of the movement for the moveable tong jaws takes place via or by means of the shaft (10). The tong control is separate from the tongs. The control means are enclosed in a housing (34). Control is uninfluenced by heat, scale and cooling water. <IMAGE>
Patent DE-3817161-A1 (DE)
Inventor: ATANASSOV JIVKO STOEV DIPL ING
IPC: B23B31/26
Filed: 1988-05-19
Abstract: A machine for cylindrical grinding comprises a base (1) having a carriage (12) for external grinding mounted on transverse slideways (11), a left-hand carriage (2) mounted on longitudinal slideways (57) and driven by an electric motor (13), and a right-hand carriage (7) mounted on the longitudinal slideways (57) and driven by an electric motor (14). The left-hand carriage (2) is adapted to support the workpiece (19) at its left-hand end by means of either a headstock centre (6) or a chuck (54), and the right-hand carriage (7) is adapted to apply a grinding device (32) to the right-hand end of the workpiece (19), or to support the right-hand end of the workpiece (19) by means of a tailstock centre (33). This arrangement allows the grinding machine to operate on either chuck-clamped or centre-type workpieces. Changing between headstock centre (6) and chuck (54), and between tailstock centre (33) and grinding mandrel (35) can be performed either manually or automatically. In the latter case the appropriate device can be aligned with the workpiece by either linear or rotational movement of the left and right carriages (2, 7). <IMAGE>
Patent DE-3817705-A1 (DE)
Title: Method and device for estimating low rotational speeds
Inventor: HARDING ROBERT L
IPC: B60T8/172
Filed: 1988-05-25
Abstract: A device and a method are described for determining the rotational speed of a rotating part. The rotational speed is determined from signals having a frequency which is directly proportional to the rotational speed. The device enables a rotational speed to be estimated even if no rotational speed signals are detected during a scanning (sampling) interval.
Patent DE-3820884-A1 (DE)
IPC: B65G21/06
Filed: 1988-06-21
Abstract: The longitudinal side piece of the frame of a chain cconveyor consists of two right-angled C profiled parts (12, 14) arranged one above the other at a distance apart and fastened by means of connecting plates (56, 58), clamps (70) seated in the profiled parts (12, 14) and clamping bolts (74) engaging in the connecting plates as well as by means of holding bolts (76)  which pass through the profiled parts and engage in the connecting plates (56, 58). The inner space of the lower profiled section (12) provides a supporting surface for the return strand of a conveyor chain, and the upper side of the upper profiled part (14) provides a supporting surface for the driving strand of the conveyor chain. Feet and transverse braces of this type can be mounted at any point on this longitudinal frame side piece. No mechanical machining of the profiled sections is necessary at the junctions.
Patent DE-3830149-A1 (DE)
Title: Optical lens for closing off housings in a hermetically tight manner
Inventor: SCHROETTLE WILHELM DIPL ING
IPC: G02B3/00
Filed: 1988-09-05
Abstract: Optically transparent openings on housings (5), for example in optical transducers, where previously closed off in a hermetically tight manner by hermetically tight soldering in of ball lenses by means of glass solder or metal solder or by welding on a frame (9), by means of a soldered-in optically high-quality thin window (1), an optical lens being placed separately in the beam path. In contrast thereto, an optical lens (8) according to the invention consists of an outer and an inner lens part (2, 3) which are applied to a common axis (10) on the two sides of a thin window (1) by glueing (adhesion). The thin window (1) has been incorporated into a frame (9) by melting glass, and the frame (9) is welded on the housing (5). As a result of the adhesion using an optical adhesive agent (4) aberration (image errors) and reflection losses at the glued boundary surfaces are minimised. <IMAGE>
Patent DE-3835674-A1 (DE)
Title: Bumper arrangement for motor vehicles
Inventor: WAGNER KURT
IPC: B60R19/40
Filed: 1988-10-20
Abstract: A bumper arrangement for motor vehicles is described, in the case of which the bumper can be extended in the case of danger. In this process the bumper initially adopts a prestressed rest position in which it is also able to absorb relatively small shocks, as may occur during parking, for example. If a collision at a relatively high speed seems to be imminent, the bumper is automatically completely extended in order to have at its disposal an absorption path which is sufficiently long for the collision. In its retracted, prestress position, the bumper is held by means of a retraction device (wire cable 3, toothed rod 4, geared motor 6). <IMAGE>
Patent DE-3839458-A1 (DE)
Title: Chair
Inventor: BOHL RAINER
IPC: A47C1/032
Filed: 1988-11-23
Abstract: A chair has a seat which is pivotable about a first horizontal axis (20) against the force of a spring (23) by a first angle relative to a seat shell (13) which is incapable of tilting. A backrest is inclined by a second angle with respect to the seat (11) and is pivotable about a second horizontal axis (21). In order to coordinate the pivoting of backrest and seat with one another, a transmission linkage (22) is provided which interconnects the seat, the backrest and the seat shell (13) and automatically adjusts the second angle as a function of the first angle (Fig. 3). <IMAGE>
Patent DE-3841093-A1 (DE)
Title: Method of manufacturing an injection-moulding tool
Inventor: PEUKE HELMUT DIPL ING
IPC: B29C45/73
Filed: 1988-12-07
Abstract: Described is an improved method of manufacturing an injection-moulding tool which contains cavities of complicated construction for the manufacture of shaped parts, for example rollers, the heating-cooling channels being made beforehand in the parts to be joined by milling, turning or drilling and these parts being joined together after prior cleaning by vacuum brazing with the use of brazing-wire material. After the vacuum brazing, the hardening of the assembled injection-moulding tool is carried out.
Patent DE-3900901-A1 (DE)
Title: Optical waveguide having a coating of stretched material
Inventor: FAUSTMANN JOSEF DIPL CHEM DR
IPC: G02B6/44
Filed: 1989-01-13
Abstract: The material is applied in the shape of individual threads (FD1, FD2) in the prestretched state onto the protective layer (CT) of the optical waveguide (LW). <IMAGE>
Patent DE-3900990-A1 (DE)
Title: Method for computer-supported mapping of the layout of, and device for manufacturing spatially bent, small-calibre pipelines, in particular fuel lines or brake lines in the car industry
Inventor: MUEFFKE WALTER DIPL ING
IPC: B21D7/12
Filed: 1989-01-12
Abstract: The previous system of determining small-calibre, spatially bent pipelines (2) on the drawing board is improved in that, in a first step using a mechanically actuated measuring pin (6), spatial points (7) of the course of the pipeline are recorded and the corresponding spatial coordinate values are stored in a memory (8) of a computer (9), and in that subsequently, in a second step, using a conversion program (10) loaded into the computer (9), the spatial coordinate values of the intersection points of the centre lines are calculated by in each case two pipeline sections (11a, and 11b). <IMAGE>
Patent DE-3903829-A1 (DE)
Title: Arrangement for actuating the swell apparatus in an organ
Inventor: TARNAI ENDRE
IPC: G10B3/16
Filed: 1989-02-09
Abstract: The invention relates to an arrangement for actuating the swell apparatus in an organ, which is provided with an actuating bar which is connected to an adjusting element of the swell apparatus, can be moved in both directions between two end positions, is arranged in a pressure box and is connected via control valves to pressure chambers connected to a pressure line. In the arrangement according to the invention, the pressure box (1) is divided into pressure chambers by diaphragms (9) which are fastened in diaphragm frames (8) and movable between two end positions, the actuating bar (2) is guided displaceably through the diaphragms (9) and the actuating bar (2) is provided with a stop (4) inside the pressure box (1), the centre distance between two adjacent diaphragm frames (8) is greater than the centre distance between the central regions (6) of the corresponding diaphragms (9) when pressed against one another, and the individual pressure chambers delimited by the diaphragms (9) are connected via the control valves alternately either to the compressed-air line or to the external atmosphere. <IMAGE>
Patent DE-3908749-A1 (DE)
Title: Cardiovascular medicine
Inventor: GOERTZ LOTHAR
IPC: C07H17/07
Filed: 1989-03-17
Abstract: Published without abstract.
Patent DE-3909116-A1 (DE)
Title: Electronic measuring tools and gauges with an overhung microprocessor system
Inventor: MEYER ERNST
IPC: G01B21/02
Filed: 1989-03-20
Abstract: Electronic measuring tools and gauges, such as electronic vernier callipers, electronic height measuring and marking-out devices and electronic tracer rod measuring devices are fitted as standard with an original electronic unit. A second electronic unit having an extensive microprocessor system is mounted overhung on this original electronic unit. As a result, the functions of the electronic tools and gauges are substantially extended. It is also possible to operate peripheral devices such as monitors, printers, actuators or controllers without an interposed computer.
Patent DE-3912786-A1 (DE)
Inventor: SCHMIDT MANFRED
IPC: B23B33/00
Filed: 1989-04-19
Abstract: In a device for driving a workpiece (11) held between centres (1) of a machine tool, in particular a cylindrical grinding machine, lathe or the like, and driven about its axis (3) of rotation, with a clamping element (4) which accommodates one end (10) of the workpiece (11), is coupled in a rotary manner to a driven centre (1) via at least one driving dog (6) and has at least two clamping jaws (8) movable symmetrically towards one another via a thread (7) and detachably securing the end (10) of the workpiece (11), it is proposed, in order to simplify clamping and release without a special drive for a power driver, that the clamping element (4) have a dog plate (5) which is connected to the centre (1) in such a way as to be fixed in terms of rotation and has a scroll thread (7) moving the clamping jaws (8), and furthermore that the radially movable clamping jaws (8) be displaceably guided in a support plate (9) and each have a scroll thread which interacts with the scroll thread (7) of the dog plate (5), and that the support plate (9) or the clamping jaws (8) interact with a stop (14), independent of the rotation of the driven centre (1), in order to clamp or release the clamping jaws. 
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Patent DE-3917983-A1 (DE)
Title: Removing nitrogen oxide(s) from flue gases - by incorporating redn. gas and catalytically reducing
Inventor: KLUG KARL HERBERT DIPL ING
IPC: F23J15/02
Filed: 1989-06-02
Abstract: NO-concn. of NO-contg. flue gas (I) is reduced by adding a redn. gas (II) to the flue gas thus producing a mixed gas, which is then catalytically reduced. (II) comprises a mixt. of a CO- and an H2-contg. gas. Appts. comprises a catalyser with a number of catalyst beds (10,11,12) arranged adjacent to each other. Each bed has an inlet for (II). ADVANTAGE - Less redn. gas is used than is normally necessary for the complete conversion of nitrogen and oxygen. The mixed gas ensures a more economic and satisfactory redn. of the NO-concn.
Patent DE-3920046-A1 (DE)
Title: Pulse generating valve for flushing pipework - has impeller driven pulse generating valves to supply water and air mixt. without external power supply
Inventor: BRUEGEL ULRICH
IPC: B08B9/02
Filed: 1989-06-20
Abstract: The pulse generating valve supplies an impulse stream of water-air mixt. to flush out the pipework system.  The valve is in three parts: a main water flow and turbine drive to the other valve parts; a water impulse generator; and an air impulse generator. Air and water are obtained from the site compressor and public water supply.  The freq. and shape of the impulses can be regulated to give the desired cleaning action. ADVANTAGE - Can use readily available water and air supplies.  Does not required electrical power supply.  Compact dimensions and low cost.
Patent DE-3921336-A1 (DE)
Title: Biological decontamination of soil - using plants, esp. polygonum sachalinense
IPC: G21F9/28
Filed: 1989-06-29
Abstract: In a ground cleaning process for removal of liq.-soluble contaminants (esp. Cd, Pb, Zn, Tl, dioxins, nitrates, nitrites and phosphates) and/or radioactive materials (esp. Cs 137) from within and/or from the surface of the ground, the novelty comprises planting the contaminated ground with pollution-resistant, esp. heavy metal resistant plants which take up one or more of the contaminants and/or radioactive materials. Harvesting and further treatment are carried out several times a year on the above-ground plant portions and after a few years on the plant roots. Propagation of a pollution (esp. heavy metal resistant Polyzonium sachalineuse variety from a pollution (esp.  heavy metal) tolerant Polygonium sachalineuse variety is carried out by in-vitro methods involving (a)  sterile isolation of the apical meristem; (b) optimisation of the callus and suspension culture; (c) selection of high capacity cell lines; and (d) regeneration of these totipotent cells to form the entire plant. Also claimed is cleaning of ground contaminated with e.g.  Cd, Pb, Zn, Tl, dioxins, nitrates, nitrites and phosphates by (a) mixing the contaminated soil with water to achieve a sprayable mixt.; (b) spraying the mixt. onto pollution resistant plants in hydroculture beds; (c) collecting the run-off from the beds for re-spraying; and (d) repeating steps (b) and (c) until the soil is free of contaminant. ADVANTAGE - The processes allow reliable biological decontamination of soil, including soils which cannot be chemically decontaminated. When process (A) is used, removal of contaminated soil from the ground is not required.
Patent DE-3923635-A1 (DE)
Title: Remote control device for computer system - using conversion of input signals into wave control signals before transmission to remote control receiver
Inventor: VILSECKER SIEGFRIED
IPC: G06F3/00
Filed: 1989-07-17
Abstract: The remote control device for a computer system uses at least one transmitter (9) supplying a radio remote control signal to a receiver (12) associated with at least one robot (1a,1b). The input controls e.g. a pen reader (3) used to scan a bare code (2) arc coupled to the transmitter (9) via a coupler (5) converting the input signals into wave signals, the wave signals received by the receiver (12) converted back into the original form via a recoupler (13) coupled to the latter. Pref. the wave signals may be provided by a loudspeaker (7). The recoupler (13) uses a microphone (10), both operating in the audible range. USE/ADVANTAGE - Remote control of data processing systems, robots, position, etc. Good remote-control accuracy.
Patent DE-3924436-A1 (DE)
Title: Annular combustor for gas turbine engine
Inventor: DUBELL THOMAS L
IPC: F23R3/46
Filed: 1989-07-24
Abstract: The annular combustor including an elongated annular outer liner and an elongated annular inner liner. A dome encloses the forward end of the annular combustor being supported to the annular outer liner and the annular inner liner, all of which define a combustion zone. There are openings circumferentially spaced in the dome for admitting air axially into the combustion zone. At least one row of fixed openings in the inner annular liner and outer annular liner are circumferentially spaced within a transverse plane for admitting air radially into the combustion zone. A portion of the openings is in the dome and a portion of the row of fixed openings are dimensioned to admit, via a given sector of the combustion zone, a reduced level of air compared to the amount of air being admitted, from outside of the sector.
Patent DE-3925621-A1 (DE)
Title: Variable support system for displaying objects - has tension members running over tension arms on support elements
Inventor: FLUCK JOSEF DIPL ING
IPC: A47F5/04
Filed: 1989-08-02
Abstract: The variable support system has at least one vertical support element (1) whose upper end(s) is (are) connected by tension members (3) to the associated holder (4). The tension members (3) run over tension arms (2) fixed horizontally on the associated support element (1) and the carriers or supports (8) for the display objects are mounted between the tension members (3) and the associated support elements (1). There are pref several support elements connected together by supports (8) and/or connecting elements (11). USE/ADVANTAGE - The support and display system is more versatile and offers a more attractive display of objects.
Patent DE-3926264-A1 (DE)
Title: Soil surface seal inserting mechanism - has drive shield assembly, contg. cutter shield with coupled follower shield, with drive blade on cutter
Inventor: GOEBEL CHRISTOPH
IPC: E02D31/00
Filed: 1989-08-09
Abstract: Seepage from an old refuse dump is prevented by placing a sheet of plastics film under it. The sheet is formed from a number of strips (5',5'',5''') which are welded edge to edge. Each strip is placed under the dump by a tunnelling machine (4). It excavates material from ahead and transfers the material to the rear to refill the tunnel. The machine has a shield to support the tunnel before it is refilled. It carries a roll of plastics film which is unrolled on the floor of the tunnel as the machine travels under the dump.
Patent DE-3927494-A1 (DE)
Title: Control voltage generator for LCD - contains negative temp. coefficient bipolar transistor and is suitable for motor vehicle
Inventor: SCHLAPPNER HORST DIPL ING
IPC: G09G3/36
Filed: 1989-08-21
Abstract: The circuit generates control voltages for segments of a LCD from an input voltage (Uein) and contains a circuit component (7) with a negative tmep. coefficient which reduces the control voltage for constant input voltage and increasing temp. The temp. dependency of the circuit component corresp. to that of the LCD. The component is a bipolar transistor wiht resistors (R1, R2) in parallel with its base-emitter and base-collector paths and a third resistor (Ri) in series with the transistor between the input voltage and earth.
Patent DE-3929251-A1 (DE)
Title: Single lever mixer battery for sanitary ware - consists of control lever, handle, cylindrical cap with cavity and connection
Inventor: WESTERHOFF HORST
IPC: F16K31/60
Filed: 1989-09-02
Abstract: The single lever mixer battery has a cartridge (14) which has a protruding control lever (16) with a handle. A connection incorporates a cap (18) covering the cartridge (14). The  cylindrical cap (18) has a cavity (19) sloping towards the cylinder axis and in which the control lever (16) fits. The cap (18) has a radial hole in which is screwed a separate handle (21). A cone (23) on the end of the handle is contained in a matching recess (17) in the lever. USE/ADVANTAGE - The connection in sanitary ware between the lever, cap and handle is simple and requires no additional parts. (5pp
Patent DE-3930790-A1 (DE)
Title: Tie piece for masonry - consists of expander sleeve with longitudinal slits, and internally threaded hole, with cone and plastics ring
Inventor: BOHNET HARTMUT
IPC: F16B13/12
Filed: 1989-09-14
Abstract: The tie-piece consists of an expander sleeve (1) with longitudinal slits (6) in and a longitudinal hole (8) with internal thread (9). A cone (2) is forced into the longitudinal hole (8). A plastics ring (3) is positioned at the end of the cone (2) facing away from the entrance (10a) to the longitudinal hole (8). the dia. of the plastics ring (3) is bigger than the core dia. of the cone (2). USE/ADVANTAGE - The energy required to ram in the tie-piece is very much less than in previous systems.
Patent DE-3932321-A1 (DE)
Title: Multi-chambered bio-reactor for waste water purificn. - is slowly rotated in vat by internal liq. transfers
Inventor: TATURA JOACHIM DIPL ING
IPC: C02F3/08
Filed: 1989-09-28
Abstract: A bioreactor, suitable for removing surplus nitrates from agricultural drainage water, or for other decontamination functions which also use bacteria colonies, has these colonies on a filling of support bodies inside the multiple sectors of a drum rotating about a horizontal axis within a vat.  The drum is slowly rotated by gravitational forces produced by systematic transfer of lip from one sector to an adjacent sector.  During rotation the contents are subjected to UV radiation from a source in the vat side-wall. The reactor can be set up in locations without electrical power supply, and any small amts. of electrical current needed for control and quality measurement are produced by using the rotating reactor as a generator. ADVANTAGE - All the main features of the reactor are ecologically desirable.
Patent DE-3936263-A1 (DE)
Title: IC engine with two inlet valves per cylinder - has system to control degree of swirl in air flowing to each valve
Inventor: WAGNER JOHANN
IPC: F02D9/16
Filed: 1989-10-31
Abstract: The IC engine has two inlet valves (4,4') per cylinder with each inlet valve being connected by a duct (2,2') to the inlet manifold (5). A rotatable tube (1) is mounted in the inlet manifold and has openings (3,3') cut in its wall. These openings (3,3') are aligned with the inlet ducts (2,2').  By rotating the tube about its longitudinal axis the degree of swirl imparted to the air flowing into the inlet ducts (2,2') can be varied. This feature enables different degrees of swirl to be imparted to the air flowing into each cylinder and to vary the degree of swirl with engine speed. USE - IC engine inlet valve swirl system.