baber/WOPTO huggingface dataset:
Patent DE-3813751-A1 (DE)
Inventor: RADEMACHER WILHELM
IPC: E06B9/68
Filed: 1988-04-23
Abstract: An electric and/or electronic control device for blackout mechanisms such as shutters, blinds, awnings, lamellar shutters or the like, with a receiving unit (2), a transmission line (3) which can be connected to the receiving unit (2) and a light-radiating sensor (4) disposed at the end of the transmission line (3), in which the light- radiating sensor (4) is preferably inserted in a mounting element (5) in the form of a suction cup or the like, is simplified in that the receiving unit (2) has an opto-electrical or opto-electronic transducer (6), the transmission line is designed as an optical waveguide (3), one end of which is connected to the optical side of the opto-electrical or opto-electronic transducer (6), the light- radiating sensor (4) is designed as a purely optical light-receiving element and the other end of the optical waveguide (3) is inserted into the optical light-receiving element (4) or led directly to the optical light-receiving element (4). <IMAGE>
Patent DE-3813953-A1 (DE)
Title: Tread crank for pedal drives
Inventor: WEDEKIND WILHELM
IPC: B62M3/04
Filed: 1988-04-26
Abstract: The efficiency in pedal drives is relatively low. The tread crank according to the invention is to improve the efficiency of the pedal drives. In the front part of the pedalling circle, as a result of increased pedalling force on the front part of the pedal (4), the pedal lever (2) alters its direction of rotation in the tread crank arm (1) and is rigidly connected to the latter via the freewheel (3) in such a manner that both form an extended force arm in the effective region. The pedal (4) is designed in such a manner that the foot can retain its natural position in the effective phase. The tread crank according to the invention is suitable for the pedal drives of bicycles, pedal boats, flying machines having pedal drive etc. It can be fitted subsequently to almost all pedal drives. <IMAGE>
Patent DE-3821614-A1 (DE)
Title: Covering layer of amorphous carbon on a substrate, process for producing the covering layer and use of the covering layer
Inventor: NIEMANN EKKEHARD DIPL PHYS
IPC: C23C14/06
Filed: 1988-06-27
Abstract: The invention relates to a process for producing a covering layer of amorphous carbon, which contains hydrogen and/or fluorine as additional element, on a substrate, and to a covering layer produced by the process. With glass-like coal as the target, the amorphous carbon is deposited on the substrate in an argon/hydrogen atmosphere or argon/hydrogen/fluorocarbon atmosphere by direct-current magnetron cathode sputtering. <IMAGE>
Patent DE-3825700-A1 (DE)
Inventor: NEUGEBAUER JUERGEN DR ING
IPC: G01L3/00
Filed: 1988-07-28
Abstract: The invention makes available a measuring wheel (1) having a hub (2) and a rim (3), as well as at least one connecting arrangement (A1 to A4, R1 to R3, T1, T2) between hub (2) and rim (3), and having one or more measuring elements in or on the connecting arrangement for the purpose of measuring forces and/or moments, which are effective on the rotating measuring wheel (1). The connecting arrangement comprises a radial connecting arrangement (R1 to R3) and/or an axial connecting arrangement (A1 to A4) and/or a tangential connecting arrangement (T1, T2), which are attached between hub (2) and rim (3) independently of one another in terms of the flux of forces in each case, and form force flux measuring paths separated from one another in each case for the measurement of the radial and/or axial and/or tangential forces between hub (2) and rim (3). <IMAGE>
Patent DE-3826955-A1 (DE)
Title: Process and apparatus for introducing oxygen into liquids
Inventor: BERNSTEIN KURT DIPL ING
IPC: B01F3/04
Filed: 1988-08-09
Abstract: In numerous industrial processes, such as the production of yeast from sugar solutions, the oxidation of ethanol to acetic acid or the aerobic purification of waste water, it is necessary to enrich a liquid, usually aqueous phase with oxygen. In the previous processes and apparatuses, a relatively poor oxygen utilisation results because of the insufficient residence time of the gas bubbles in the liquid phase. The object of the invention is to improve the utilisation of the oxygen or oxygen-containing gas introduced into a liquid column with the aim of improving the economic efficiency of such processes. This object is achieved by the liquid being conducted from top to bottom through the reaction section and by the flow velocity being established such that it is somewhat lower than the rising velocity of gas bubbles of critical size relative to the liquid. The process according to the invention is advantageously used in all processes in which oxygen must be fed to a liquid, preferably in the production of yeast, the production of acetic acid or the purification of waste water.
Patent DE-3833557-A1 (DE)
Title: Sliding bearing composed of plastic
Inventor: ROSENTHAL DIETER
IPC: F16H61/26
Filed: 1988-10-03
Abstract: Sliding bearings composed of plastic are known, having an outer part (10) that can be inserted into a bearing receptacle (3, 4) and an inner part (11) which is inserted into the outer part (10) and locked to the latter, has a bearing surface (17), can be pushed onto the shaft or rod (6) to be supported and, between it and the outer part (10), forms lubricant-filled chambers (12) which are connected via passages (13) or the like to the bearing surface (17) of the inner part (11). The outer surface of the outer part (10) and of the inner part (11) of the bearing surface (17) of these known sliding bearings are of cylindrical design and arranged coaxially to one another. To support a shaft by means of two sliding bearings of this kind, the bearing receptacles have to be aligned precisely coaxially to one another in the housing or frame. The new sliding bearing is intended to permit support of shafts without jamming even if the bearing receptacles are not precisely coaxial. For this purpose, the inner surface (14) of the outer part (10), the surface resting against the inner part (11), and the outer surface of the inner part (11), the surface resting against the outer part (10), have a spherical curvature and the inner part (11) is inserted into the cavity in the outer part (10) with elastic deformation. The sliding bearing is used for the rotatable and/or axially displaceable support of shafts and rods. <IMAGE>
Patent DE-3902871-A1 (DE)
Title: Automatic control of the operating point of radio-frequency field-effect transistors in keyed pulse mode
Inventor: OBERHETTINGER CHRISTIAN DIPL P
IPC: H03F1/30
Filed: 1989-02-01
Abstract: A circuit arrangement (10) for the controlled stabilisation of the operating point of a radio-frequency power field-effect transistor (11), the gate electrode (12) of which coupled to the radio-frequency input (16) and the drain electrode (13) of which coupled to the radio-frequency output (17) are in each case DC-decoupled from the input and the output via a capacitor (C1 and, respectively, C4), has a DC feedback in the form of a negative and a positive direct voltage, the latter one of which is coupled to the drain electrode (13) via a resistor (R7). For such a circuit arrangement (2) to provide a simple automatic calibration and equalisation of ageing-related temperature-dependent effects and an independence from component spreads in the respective transistors, particularly also in a pulse operation, a resistor (R1) of a voltage divider (R1, R2) and the base-emitter path of a bipolar control transistor (T1) are provided in parallel with the drain resistor (R7), the collector of which control transistor is connected, on the one hand, to the gate electrode of the field-effect transistor and a charging capacitor (C2) in parallel with the latter and, on the other hand, to the negative direct voltage via a resistor (R4). Furthermore, the negative direct voltage is [lacuna] essentially directly to the gate electrode of the field-effect transistor (11) via a switch device (T2) which can be controlled by means of a pulse voltage which is positive compared with the negative direct voltage... Original abstract incomplete. <IMAGE>
Patent DE-3903779-A1 (DE)
Title: Wing (mainplane)
IPC: B64C31/028
Filed: 1989-02-09
Abstract: In the case of a wing, for example for a hang glider, ultralite aircraft, or the like, or else as a paraglider, made of an upper material web (1) and a lower material web (2), the lower material web and upper material web are themselves intended to form an enclosed air chamber. At least one enclosed flexible-tube chamber (4, 5) which can be filled can also be arranged between the upper material web (1) and the lower material web (2). This flexible-tube chamber then lies transversely with respect to the direction of flight. <IMAGE>
Patent DE-3910045-A1 (DE)
Title: Measuring slide (carriage) unit
IPC: G01B5/012
Filed: 1989-03-28
Abstract: The invention relates to a measuring slide unit having at least one measuring slide (60, 30 or 40) which can be moved on a guide member and in each case has a linear measuring displacement sensor (position pickup) (61, 31, 41) for scanning a measurement object. The measuring displacement sensors (61, 31, 41) are reproducibly fixed in the axial direction in each case in a cavity of the guide member or of the measuring slide (30) by means of a clamping device (38, 38', 39). The clamping device (38, 38', 39) preferably consists of a cylindrical clamp sleeve (38), which is rigidly connected to the guide member of the slide (30). Provided in the clamp sleeve (38) is a clip (shackle) (38') by means of which the measuring displacement sensor (31) is clamped radially by a clamping screw (set screw) (39) provided in the guide member. The integration of the measuring displacement sensor in the guide member or measuring slide permits a very compact measuring slide unit to be implemented in particular also for the case of measurements with several degrees of freedom. <IMAGE>
Patent DE-3913846-A1 (DE)
Title: Separate spring element for electrical contacts - has contact surfaces forced against blade by spring loop
Inventor: TEUFEL FIDELIS
IPC: H01H1/42
Filed: 1989-04-27
Abstract: A single loop spring element (4) is used to increase the contact pressure between contact surfaces (2, 3) and an insert contact blade (13). The ends of the spring are formed (5, 6) locate freely in insulated caps (7, 8) that are fixed by rivets (9, 10) to the contact blocks (1). The gap (12) between the contacts is smaller that the thickness of the inserted contact blade, which ensures good contact pressure. ADVANTAGE - Improves contact between elements. used for safety switches.
Patent DE-3918441-A1 (DE)
Title: Chimney driven coolant circuit for nuclear storage chamber - has baffles at outlet for radiation shielding and is simple and effective
Inventor: KUMPF HERMANN DIPL ING
IPC: G21C19/07
Filed: 1989-06-06
Abstract: A chimney is used to power a natural convection cooling circuit for a storage chamber contg. radioactive waste; specifically, spent nuclear fuel elements in gas tight boxes. The store consists of a concrete outer chamber, a storage chamber, multiple channels through which cooling air flows and a exit channel for hot air passing to the chimney. The exit channel is baffled heavily to prevent radiation penetrating out of the chamber. Two prefered embodiments show the chimney built above and together with the outer chamber or built on a separate foundation and attached to the outer chamber by elastic couplings. ADVANTAGE - The natural convection design is simpler to construct, less prone to problems and is more effective.
Patent DE-3925230-A1 (DE)
Title: Fertilisers prepd. from quicklime - by slaking with waste water from starch mfr.
Inventor: MAHL JAKOB DR
IPC: C05D3/02
Filed: 1989-07-29
Abstract: Dry fertiliser compsns. are prepd. by slaking CaO with waste water from the mfr. of cereal, legume or potato starch. The waste water may be used in concd., unconcd. or water-diluted form. Water-absorbing materials, esp. bentonite, aerated cement waste, kieselguhr and/or dried potato pulp, may be added. The prod. may be in powder, granule or pellet form. ADVANTAGE - The compsns. are non-hydgroscopic solids with similar Ca, Mg, N and K ratios to guano, and are prepd. using inexpensive and environmentally safe materials.
Patent DE-3926878-A1 (DE)
Title: Casing-less differential gear - consists of differential star driven from shaft via spur- or bevel wheel carrying differential pinions on spigots
Inventor: SCHMETZ ROLAND DIPL ING
IPC: B60K17/16
Filed: 1989-08-16
Abstract: The differential gear is designed without a casing. It comprises a differential star (2) driven from the shaft via spur- or bevel wheel (1). The differential star carries spigots (2a, 2b) on which differential bevel gears (3,4) are rotatingly fitted and spigots (2c, 2d) with axle shaft bevels (5,6). USE/ADVANTAGE - Elimination of costly housing for vehicle differential gear.
Patent DE-3931834-A1 (DE)
Title: Filler head for can filling machine - has connectors to atmos. from second pressure chamber, can support and can inside
Inventor: RAABE GERALD
IPC: B67C3/26
Filed: 1989-09-23
Abstract: The can filling machine has a filling head which for cans of differential filling hole (3a,3b) by using one or the other of two sealing rings (29,30) of different dias., corresp. to the can dia. The filling head has two pressure chambers (9,17), with both used to press the head onto the can, when filling a larger dia. can (3a). When filling the smaller dia. can (3b), the chamber (17) is vented to the atmos. through a hole (34) in the sealing ring support (33). ADVANTAGE - Improved compression of filling head, without need for its exchange.
Patent DE-3935331-A1 (DE)
Inventor: ROTH HARALD DIPL ING
IPC: H05B41/295
Filed: 1989-10-24
Abstract: A circuit, having a split primary transformer, for controlling the warm-up, ignition and normal operating stages of a fluorescent tube initially applies in phase voltages to opposite sides of the split primary transformer during a warm-up stage; during an ignition stage and during the normal tube operation, out of phase voltage waveforms are applied to opposite sides of the split primary of the transformer.
Patent DE-3939040-A1 (DE)
Title: Roll position measurement appts. for flying body - has two antennae fixed to flying body at orthogonal polarisation directions, different HF waveguide switch operating frequencies
Inventor: NEININGER GUENTER DIPL ING
IPC: G01S7/02
Filed: 1989-11-25
Abstract: The arrangement for measuring flying body roll position contains a first antenna (10) fixed w.r.t. the body and with a polarisation sensitive receiver characteristic.  The antenna polarisation direction (10') is radial to the body's rotation axis (3). An HF waveguide switch in a waveguide connected to the first antenna's horn (11) is periodically driven by a clock generator with a first switching frequency.  The waveguide is terminated by a short circuit.  A further antenna (20) with polarisation direction (20") orthogonal to the first is operated at a different frequency. USE/ADVANTAGE - For high resolution roll position measurement with partic. simple arrangement.
Patent DE-3939145-A1 (DE)
Title: Motor vehicle with compartment for folding hood - has compartment cover made in three pieces for ease of opening
Inventor: EYB WOLFGANG DIPL ING
IPC: B60J7/20
Filed: 1989-11-27
Abstract: The motor vehicle has a folding hood, which, when folded, is stored in a compartment behind the rear seat. This compartment is provided with a cover which consists of a middle piece (8) and two side pieces (9, 10). When the hood is required to be used access to this compartment is provided by sliding the middle piece (8) forwards over the rear seat and then swinging the side pieces (9, 10) about vertical axes (14) so that they are swung horizontally inwards over the retracted middle piece (8). The cover (8,9,10) thus requires no additional space whilst the hood is set in position. USE - Motor vehicles with folding hoods.
Patent DE-3942532-A1 (DE)
Title: EM actuator controlling pneumatic diaphragm actuator - has linear actuator to displace valve controlling pressure in pneumatic actuator chamber
Inventor: MAUSNER EBERHARD
IPC: G05D16/20
Filed: 1989-12-22
Abstract: An electromagnetically-actuated valve is used to control the force applied by a pneumatic diaphragm actuator (8,38).  The actuator has the pressure on one side (7) varied between atmospheric and a vacuum condition by a spool valve (11).  One port (12) connects with atmosphere and the other to vacuum. Movement of the spool is provided by the electromagnetic actuator that has a coil (16) and armature (17).  The end of the armature is tapered (39) to enter a cone shaped recess (40) to linearise the relationship between current and armature displacement. USE/ADVANTAGE - Accurate control of actuator force.  Regulating throughflow of by-pass of throttle flap of motor vehicle.
Patent DE-4002391-A1 (DE)
Title: New 4-(propylamino)-2-cyano-indole derivs.
Inventor: STENZEL WOLFGANG DR
IPC: C07D401/14
Filed: 1990-01-27
Abstract: 4-(propylamino)-2-cyano-indole derivs. of formula (I) and their salts, tautomers and optical isomers are new. R1, R2 = independently phenyl (opt. mono- or di-substd. by halo, 1-6C alkyl, 3-7C cycloalkyl or 1-6C alkoxy), 2-, 3- or 4-pyridinyl or 2- or 3-thienyl. (R,S)-4-(3-(1-diphenylmethyl- azetidine-3-oxy)-2-hydroxypropylamino) -1H-indole-2-carbonitrile is specifically claimed.
Patent DE-4014468-A1 (DE)
Title: Pedal-operated opening system for waste bins - has double-armed lever attached to upright flat iron and lift rod
Inventor: DOERR WILHELM ING GRAD
IPC: B65F1/16
Filed: 1990-05-07
Abstract: The pedal bin opening system comprises a flat iron (5) provided at the top end with a hook (6) and at the bottom end with a movable fitted double-armed lever (8) whose longer end forms a foot pedal (9) through a 90 deg. turn. A guide (7) is fitted on the flat iron and a lift rod (10) is attached movable on the shorter end of the lever arm (8). The lift rod is guided in the guide (7) of the flat iron (5) and has a locking screw (11). A sheet metal plate (12) bent in a double U-shape is attached movably to the upper end of the lift rod (10). USE - Pedal bin opening system. When stepping on the pedal the lift rod is pressed up by the double armed lever to open the lid.
Patent DE-4014964-A1 (DE)
Title: Chimney renovation to give cleaner emissions - has flue tube sections and shaped sections with a muff at one end of each to fit into each other
Inventor: DENDL PETER DR RER NAT
IPC: F23J13/04
Filed: 1990-05-10
Abstract: To convert a chimney to give cleaner emissions, by inserting shaped sections (6) into the flue (4), an insertion fit is provided between the flue sections (5) and shaped sections (6) through a muff (8), at one end of each, to build up a flue (4).  The flue sections (5) are built up on top of each other to form the flue (4) as far as the level of a side opening (2) in the chimney (1), if necessary cutting the plain ends of the flue sections (5) to give the height alignment with the side opening (2). A shaped section (6) is passed through the side opening (2) and placed on the uppermost flue section (5). Where the flue sections (5) and the shaped sections (6) are joined together, between the flue sections (5) and between flue sections (5) and shaped sections (6), they are additionally bonded and sealed through putty, mortar or a ceramic fibre material. The side shaping (7) of the shaped section (6) is directly near the muff (8). When fully assembled, the flue (4) carries out the exhaust gas with a greatly reduced dia.  compared to the original chimney (1), to renovate chimneys to meet environmental needs and to correct chimney construction faults. ADVANTAGE - Old chimneys can be renovated through the use of shaped sections in the flue tube.
Patent DE-4017292-A1 (DE)
Title: Coupling connecting hose - is used for gas or liq. and is actuated by hydraulic cylinder
Inventor: SOLTYSIAK PETER
IPC: F16L37/00
Filed: 1990-05-25
Abstract: The tank, containing a gas or liq. under pressure, is provided with two coupling points for the connection of hoses for the filling or emptying of the tank. Each coupling is rotated to its sealing position by means of a ring (1) with a ring for each coupling being mounted on a common support plate (3). Each ring (1) is equipped with four spring-loaded pins (2) which extend radially inwards.  These pins (2) engage recesses in the periphery of the coupling so that when the ring is rotated it also rotates the coupling.  Each ring (1) is rotated by means of a hydraulic cylinder (5) which is mounted on an arm (4) extending from the support plate (3).  The piston rod of each cylinder (5) is connected by an L shaped link (7) to an arm (6) extending from each ring (1). USE - Couplings for tanks containing high pressure gas or liq..
Patent DE-4018849-A1 (DE)
Title: Shoe cleaning machine using rotating brush(es) - driven by electric motor and projecting above top of housing through slot
Inventor: OTTO PETER H DR ING
IPC: A47L23/26
Filed: 1990-06-13
Abstract: The brush (1) is roller shaped, with a width which at least corresponds to the width of the shoe sole and the slot (10) in the top side of the housing (8) is rectangular. The brush (1) can be cup-shaped, its dia. being smaller or the same size as the width of a shoe sole, and the recess (10) in the top side of the housing (8) is circular. A button (7) of an electrical switch (11) projects from the top side (9) of the housing and controls the electric motor. The button is operated by the underside of the shoe (3) applied on the top side (9) of the housing and is operated by the region between the shoe sole (12) and the heel (13). A light barrier is fitted at the top side of the housing which starts the motor when interrupted by the foot and stops the motor when the foot is withdrawn. The motor (14) can be controlled by a timing element started by the switch or the light barrier. The direction of rotation of the brush can be reversed. USE/ADVANTAGE - Esp. for dancing or sports shoes that require particular attention at soles, not usually given by conventional cleaning devices.
Patent DE-4024921-A1 (DE)
Inventor: WITTWER ROLAND
IPC: D04B15/08
Filed: 1990-08-06
Abstract: In a flat knitting machine with at least one combined knitting and take-up block a brush holder (4) with a brush (5) to open the latch-needles is secured in the block region of a slide (1). The brush holder (4) is fitted to move on the slide (1) parallel to the running direction of the slide (S). This provides for the certain and reliable actuation and deactuation of the brush (6) for the knitting or take-up region, whereby this switching process requires little space and can be obtained with simple means.
Patent DE-4025474-A1 (DE)
Title: Electronic multiplier circuit using parallel addition - has reset control block assigned to flip=flop
Inventor: MERKLE PAUL
IPC: G06F7/52
Filed: 1990-08-10
Abstract: An electronic multiplier circuit produces intermediate results by n-times parallel addition of the multiplicands and then forms the final result. Each intermediate result is shifted w.r.t. the multiplicands when necessary. The control stage contains a folk circuit (40) and only one potential storage flip-flop (27) which stores the output potential of another stage (8). The flip-flop has a reset drive block (70) consisting of the negation circuit (36) and the AND circuit (31) or similar components. USE/ADVANTAGE - Developed to reduce number of potential storage flip-flops from two to one and to use a different conductor architecture and quad pulse circuit.