baber/WOPTO huggingface dataset:
Patent DE-3941752-A1 (DE)
Inventor: SNYDER ROBERT N
IPC: B25B21/00
Filed: 1989-12-18
Abstract: The apparatus has a split ring 64 which engages a member 88 to which a torque load is to be applied. The split ring 64 is initially loaded to establish a threshold friction load between the split ring 64 and the member. The split ring is loaded into gripping engagement with the member 88 during a toward (torque input) operation; and the split ring 64 is released from the member during a return operation to achieve repeated operation without removing the apparatus from the member to be torqued. The member 88 may have a smooth cylindrical outer surface or its outer surface may be undulating (Fig. 8, not shown). <IMAGE>
Patent DE-4000713-A1 (DE)
Inventor: MEHLINGER FRIEDRICH
IPC: A47F3/04
Filed: 1990-01-12
Abstract: A refrigerated vending cabinet is described which has a lower, chest-type merchandise space (1) and, above it, an upper cabinet-type merchandise space (2). Cold air is conducted through air supply ducts (20, 21, 22, 24) into the two merchandise spaces (1, 2) and air is removed from the merchandise spaces (1, 2) through return air ducts (10, 11, 12, 16). According to the invention, a first common air supply duct (20, 21) extends from an evaporator (31) and branches into a second (24) and a third (22) air supply duct. The second air supply duct (24) leads into the lower merchandise space (1) and the third air supply duct (22) into the upper merchandise space (2). <IMAGE>
Patent DE-4004978-A1 (DE)
Title: Preventing therapy for Alzheimer's disease - comprises administering synthetic complexing agent with higher affinity for aluminium ions than ATP and citrate ions
Inventor: LEHMANN HANS-DIETER DR
IPC: A61K31/44
Filed: 1990-02-19
Abstract: A process for eliminating aluminium ions from the body comprisese administering a synthetic complexing agent with a higher affinity for aluminium ions than ATP and citrate ions. Pref. the complexing agent is administered in the form of a non-complexing precursor which is changed in the body to a form which can be eliminated by the kidney. The complexing agent is pref. a bidentate ligand which contains neighbouring OH gps. on an aromatic or heteroaromatic ring, masked as the ester of a carboxylic acid. The precursor, which contains additional carboxylic acid gps., is administered as the Mg salt. The compelxing agent may contain several ligands which are coupled together to conform to the 6 coordination positions of the aluminium.
Patent DE-4006800-A1 (DE)
Title: Jack for use with large vehicles - incorporates vertical tube containing sleeve with spiral track
Inventor: CROTTI QUINZIO
IPC: B60C25/00
Filed: 1990-03-03
Abstract: The jack (1) includes a journal which can be brought out of the guide tube in which it slides, if required, either by hand or hydraulically. mOn the top of the journal there is a head or a rest for placing underneath the axle of the vehicle. There are two grooves along the shaft and pin, spring controlled, is mounted on the side of the tube to hold the rest in position.  There is a sleeve (10) with a spiral track, for a quick release. USE/ADVANTAGE - The advantage is a simple, effective and low cost jack.  It is suitable for use in removing tyres from large vehicles, lorries, coaches and tractors.
Patent DE-4008815-A1 (DE)
Inventor: ZERTANI RUDOLF DR
IPC: G03F7/027
Filed: 1990-03-20
Abstract: A description is given of a photopolymerisable composition which contains a polymeric binder, a free-radical-polymerisable compound containing at least one polymerisable group and at least one photooxidisable group in the molecule, and a metallocene compound as photoinitiator. The composition is suitable for producing printing plates and photoresists and is notable for particularly high photosensitivity, especially in the visible spectral range, and a very good thermal stability. Images can be produced on it by laser radiation in the visible range.
Patent DE-4016570-A1 (DE)
Title: Video recording system for police vehicle - has optical lens and associated electronic control fitted adjacent vehicle rear view mirror
Inventor: AICHELE HELMUT
IPC: B60R11/04
Filed: 1990-05-23
Abstract: The video recording system has an optical lens (1) and an associated electronic control fitted adjacent the vehicle rear view mirror, mounted at the centre of the front windscreen. The optical lens (1) can pivot and tip and is coupled, together with the electronic control, to the remainder of the video recording system housed within the vehicle. Pref. the optical lens (1) is adjusted via a wing mirror setting motor and an associated control switch. The remainder of the video recording system may be housed in the boot. USE - For providing video record of motoring offence.
Patent DE-4017455-A1 (DE)
Title: Crash barrier at side of motorway - consists of two parallel back=to=back steel planks secured by posts and crossbeams
Inventor: MANTEL JAQUES
IPC: E01F15/04
Filed: 1990-05-30
Abstract: The motorway crash barrier consists of two horizontal parallel rows of steel profiled planks fixed together at intervals by cross beams (10). Steel C-section channel posts (20) are driven into the ground vertically below the centre of the cross beam (10). Welded centrally to the underside of the cross beam (10) is a C-section spigot (16) into which the free end of the post slides. A vertical slot (19) is formed in the web of the post (20) near its free end, and a hole (18) is drilled in the web (16a) of the spigot (16), through both of which a locking nut and bolt (17) is tightened to fix barrier to post. USE/ADVANTAGE - Prevents the possibility of vehicles crashing through the barrier and across the central reservation.
Patent DE-4023688-A1 (DE)
Title: Needle valve for fuel injection nozzle - has two permanent magnets to damp out needle vibrations
Inventor: AUWAERTER GERHARD
IPC: F02M63/00
Filed: 1990-07-26
Abstract: The engine has a fuel injection nozzle with a nozzle body (1) which has an axially sliding valve needle (18). The valve needle is held in the closed position by a spring (25) and is opened by the pressure of the fuel. The valve is fitted with damper to prevent vibration of the needle. This consists of two permanent magnets (35,37) which are arranged so that their ends of like polarity face each other and are separated by an air gas (S) when the valve is closed. One magnet is fixed and the other moves with the needle (18). The repulsive force between the magnets damps out needle vibration.
Patent DE-4028682-A1 (DE)
Title: New azido-desoxy-thymidine derivs. -  have virustatic, cytostatic and antibacterial activity
Inventor: EGER KURT PROF DR
IPC: C07H19/06
Filed: 1990-09-10
Abstract: 3'-Azido-3'-desoxy-thymidine derivs. (I) are new. R1 = H, alkyl, halogen, trifluoromethyl or halo-alkenyl; R2 = H; or R2 + R4 = -O-; R3 = H; or R2 + R3 + -O-; R4 = H and R5 = azido or R4 = azido and R5 = H; R6 = hydroxymethyl, dibromovinyl, formyl or ethynyl. Prepn. of (I) comprises: (A) oxidn. of (II) with e.g. DMSO or DCCl, followed by a Wittig reaction to give (I) (R6 is -CH=CBr2); (B) debromination of (I) where R6 = -CH=CBr2 to (I) where R6 = -CCH, e.g. using n-BuLi; and (C) for anhydro cpds. (I) where R6 = CH2OH, treatment of corresp. O-protected cpds. with azide salt in DMF/water. USE/ADVANTAGE - Cpds. (I) are useful in treating viral diseases, tumours and bacterial infections. Compared with known nucleosides, cpds. (I) avoid resistance problems, are more selective and have fewer side effects.
Patent DE-4030304-A1 (DE)
Inventor: TRABOLD HERMANN
IPC: B01D29/21
Filed: 1990-09-25
Abstract: The invention relates to a filter (1) for filtering gaseous and liquid media, especially in an oil filter for internal combustion engines, with a filter casing (2) and a filter packing (8) of a porous, deformable material, e.g. an absorbent paper coil, in the filter casing. To prevent the filter packing from deforming and thus preventing smooth flow through the filter packing, stabilising components (12), e.g. stabilising rods, are fitted which fix the shape and position of the filter packing (8) in the filter casing.
Patent DE-4031693-A1 (DE)
Title: Compact photographic rotary slide camera -  is of parallel adjustable wide angle type with picture carrier and parallel movable lens carrier
Inventor: GOTTSCHALT WOLFGANG
IPC: G03B5/02
Filed: 1990-10-03
Abstract: The rigid camera housing (1) serves as retainer for internationally standardised exchangeable picture carriers (8), and for a multi-port housing front plate (3, 4, 6). A rotary disc (3) rotates unclosably in a circular housing front section (5), and supports a push slide (4). This slide provides a three-point location with pressure screw for the lens plate (6). Each lens (7) has its own plate (6), and is therefore exchangeable. The rotary push slide permits parallel movement of the lens to the picture carrier (8). A three-stage, adjustable press pusher (13) engages laterally in the double-walled housing, permitting clamping of three different thicknesses of picture carrier. USE - For wide angle photography using the shift-lens technique.
Patent DE-4033973-A1 (DE)
Title: Switching equipment for operation of fluorescent lamp - generates DC by rectification of output from mains fed HF circuit followed by reversing switch
Inventor: WALZ ALFRED PROF DIPL ING DR I
IPC: H05B41/292
Filed: 1990-10-25
Abstract: The lamp (2) is operated from AC mains (3,4) with DC produced by a high-voltage circuit (5) capable of giving sufficient voltage to strike the discharge. It has sufficient DC power for long-term operation. A reversing switch (8) is interposed between the high-voltage output terminals (6) and the lamp electrodes (7). A high-frequency generating circuit (15) is supplied with mains voltage. Its output at a multiple of mains frequency is fed to a full-wave rectifier (18). USE/ADVANTAGE - The DC is produced at comparatively low cost with the high-frequency section encapsulated and screened to suppress interference.
Patent DE-4034520-A1 (DE)
Title: Three=phase current regulator for variable speed drive - provides direct regulation of electrical output parameter using detected phase components
Inventor: BOEHRINGER ANDREAS PROF
IPC: H02P27/08
Filed: 1990-10-30
Abstract: The current regulator is coupled at its output to a measuring device providing each phase component of the regulated electrical parameter, with the corresponding vector compared with the required vector. Logic control signals are provided for the thyristors within the power output stage. Pref. the employed clock frequency is kept to between 2 and 10 kHg for reducing the switching losses and for optimum use of the current regulator components. ADVANTAGE - Reduced output harmonics and reduced operating noise.
Patent DE-4037682-A1 (DE)
Title: Linear-action windscreen-wiper - is used on road vehicle and is driven by parallel belts
Inventor: LOIDL WALTER
IPC: B60S1/34
Filed: 1990-11-27
Abstract: The windscreen wiper (1) with linear action is driven by parallel belts (2, 3). It is designed to cover the max. area of the vehicle windscreen. The drive mechanism can be below or above the windscreen, or divided, and can be housed in an oblong cassette matching the amount of blade movement, and shaped to suit installation requirements. USE/ADVANTAGE - Linear action windscreen wiper fitted to motor vehicle covers max. area of windscreen to provide good visibility.
Patent DE-4039121-A1 (DE)
Title: Running yarn monitor - has voltage divider to set limits for automatic tolerance range adjustment after a start-up
IPC: B65H59/40
Filed: 1990-12-07
Abstract: The monitor for the running yarn at a textile machine, partic a ply twister, has a voltage  (22) which determines the upper and lower voltage limits after the start-up phase. This is applied to the output signal of the yarn tension sensor through a delay unit (13). Pref the monitoring signal is passed through a second delay unit (14) to each input of the two comparators.  The time constant of the second delay unit (14) is less than the time constant of the first delay unit (13). To determine the tolerance range, on a start-up, a delayed version of the electrical voltage is formed and a percentage portion of the delayed voltage establishes the upper and lower  eg limits of the yarn tension  band. ADVANTAGE - The tolerance range is automatically adjusted to the yarn tension, at the start of the machine.
Patent DE-4040116-A1 (DE)
Title: Stator for linear motor with yoke core - which coacts with toothed laminations, inserted at 90 deg offset in core grooves
Inventor: KLEEMANN DIETMAR DIPL ING
IPC: H02K1/16
Filed: 1990-12-13
Abstract: The linear motor stator consists of insulated yoke core laminations with grooves in the core, and a separate toothed laminations, or a core of such, coacting with the yoke core. The toothed laminations (4) extend at 90 deg offset w.r.t. yoke core laminations (13) and are inserted into the yoke core grooves (14). Pref the toothed laminations are grouped into cores (5), fitted into the yoke core grooves with a press fit. ADVANTAGE - Low-cost precise mfr, compact design, and improved efficiency.
Patent DE-4040619-A1 (DE)
Inventor: WOLFF HANS PETER DR RER NAT
IPC: C07D257/04
Filed: 1990-12-19
Abstract: Compounds of formula (I) in which: A is fluorine or hydrogen, n is an integer between 1 and 10; and B is a saturated or unsaturated, straight or branched chain alkylene group with 1 to 12 carbon atoms; and the physiologically acceptable salts, process for producing them and their use as a medicament in the treatment of diabetes, prediabetes and maturity diabetes.
Patent DE-4100767-A1 (DE)
Title: Illumination esp. for cooker hob - delimits cooking areas by shaped light conductors supplied from light source
Inventor: SCHROEDER ERICH
IPC: F21V8/00
Filed: 1991-01-12
Abstract: A light for domestic equipment has an elongate light conductor (1) with a light source located at one or both ends (17,18) of the light guide, the light guide having longitudinally distributed devices (15) for light deflection in the transverse direction and a translucent outer face. The light conductor can consist of a tube with two or more layers (11,12,13) of glass with different thermal expansion coeffts., the layer (12) with high thermal expansion coefft. pref. being of normal glass and having cracks (15). This light guide is pref. made by dipping a normal glass tube in a melt of pref. borosilicate glass melt to form inner and/or outer layers (11,13) and then cooling to produce the cracks (15). Alternatively, the light guide is a solid glass or plastics profile having transverse notches for light deflection. ADVANTAGE - Easily and inexpensively mfd. and installed. Withstands high temperatures.
Patent DE-4102246-A1 (DE)
Title: Portable map carrier for motor vehicle - uses suction pads for attachment to vehicle with illumination
Inventor: DOERFLER PETER
IPC: G09B29/06
Filed: 1991-01-24
Abstract: The maps are contained in a portable housing attached to the vehicle by suction pads (2). The maps are rolled onto a central shaft, either in continuous form or in separate leaves. An integral illuminator (3) is powered by a battery (5) in the bottom of the housing. The housing is operated by a switch for the illuminator and by a control knob on the side to turn the map support. The maps are secured by a clamp fitting, and can be rapidly exchanged for another set of maps. The battery can be supplemented by a power cord connection (6) to the vehicle. ADVANTAGE - Portable, simple to fit, universal fitting.
Patent DE-4104440-A1 (DE)
Title: Vehicle seat with adjustable seat depth - consists of two connected continuous sections
Inventor: MEILLER HERMANN
IPC: B60N2/62
Filed: 1991-02-14
Abstract: The seat, esp, vehicle seat, has a seat pad (20) with a front and rear section (34,32). The front section is adjustable in the longitudinal seat direction, relative to the rear section, to adjust the sitting depth of the seat pad. In any depth position of the seat, the two seat sections form a connected continuous seat pad surface (100). The two sections are formed by a common flexible pad (36). USE/ADVANTAGE - Vehicle seat is simple to clean in any depth position.
Patent DE-4105701-A1 (DE)
Inventor: LENZE REINHARD
IPC: F16L9/04
Filed: 1991-02-21
Abstract: The invention relates to a method of manufacturing a thick-walled high-pressure metal tube, in which two preliminary tubes of different cross-sectional dimensions are first of all inserted telescope-fashion into one another and then pressed together radially by cold drawing. In order to specify a simple and economical method of manufacturing high-pressure tubes with a diameter/wall thickness ratio of 2.4 to 3.6, which have a smooth inner surface, a uniform inside diameter along their length and good cold deformability and which can withstand a pulsating internal pressure equal to or greater than 1000 bar, it is proposed that the preliminary tubes be produced from tube blanks, produced by a hot method, by a sequence of cold draws with intermediate heat treatments, forming preferably being performed by drawing with an internal tool and the reduction in the wall thickness, in particular of the inner tube, accounting for a large proportion of the respective total deformation, that the preliminary tubes be pushed into one another in the cold-worked state with little play and the double-walled tube produced in this way be first of all heat-treated and then cold-drawn at least once and a final heat treatment operation be carried out after the last cold draw, the first cold draw after the first heat treatment of the double-walled tube produced being performed with an internal tool. <IMAGE>
Patent DE-4111944-A1 (DE)
Inventor: CHU WING-FONG DR
IPC: G02F1/1523
Filed: 1991-04-12
Abstract: An electrochromic system. It comprises layers of solid/materials deposited on glass or another substrate. The solids function in an atmosphere that can be dry. One layer is preferably Li3AlF6 and conducts positive lithium ions. Another layer is a counterelectrode. The counterelectrode is improved to the extent that it can reversibly accept ions from and donate them to the ion conductor while remaining extensively transparent. The counterelectrode can be LixTiOy, (Li2O)m(WO3)n(Sb2O3), or (Li2O)m(WO3)n(CeO2)o.
Patent DE-4113082-A1 (DE)
Title: Armchair with armrests and movable seat surface - has bottom frame with two side struts and floor support, with rigid seat panel and cushion
Inventor: STIERLI DIETER
IPC: A47C3/021
Filed: 1991-04-22
Abstract: The chair, esp. an armchair (1), has an at least partly sprung bottom frame (4), with arm-rests (10). A seat-surface (12) is movable on a horizontal axle (8, 10). Also included is a back-rest (3). The bottoam frame has two side, resilient, convex support struts (12) pointing upwards from a floor-support (11). The seat and back-rest are fixed to the struts. The front part (15) of each support-strut (12) next to the floor support forms a springy, flexible leg. The bending resistance of the support-struts decreases upwards. The seat's underside (5) has a rigid panel (6) the front of which is movably attached to the support-struts and which has a cushion (7) on it. ADVANTAGE - The seat surface is vertically sprung when the sitter's body weight is applied to the seat-surface attachment, and when the sitter leans back, the height of the seat axle remains unchanged.
Patent DE-4113752-A1 (DE)
Title: Mould producing hollow concrete cylinder - has plate which remains in place after concrete has hardened
Inventor: ITO GOJI
IPC: B28B7/16
Filed: 1991-04-26
Abstract: The method is for prodn. of a concrete component of hollow cylindrical form with a flat end wall. The method involves the use of a mould whcih has a cylindrical core (14) and a hollow cylindrical outer form (16) with an annular space (24) between the core (14) and form (16). A flat plate is placed on the upper end face (14b) of the core (14). The dia. of this plate (34) is such that it projects over the edge of the core (14) but leaves a radial gap through which the annular space (24) can be filled with concrete. After the concrete has hardened the core (14) and form (16) are removed but the plate (34) remains in place. USE - Prefab. hollow concrete cylinders.
Patent DE-4117501-A1 (DE)
Title: Amine-modified polyimide membranes for gas sepn. and ultrafiltration - by mixing polyimide soln. with soluble polyfunctional amine contg. at least 2 prim. amino gps., and casting a membrane from mixt.
Inventor: PEINEMANN KLAUS-VIKTOR DR
IPC: C08L79/08
Filed: 1991-05-28
Abstract: Amine-modified polyimide membranes (I) are obtd. by mixing a casting soln. contg. a polyimide (II) with units of formula (III) in the polymer chain with a soluble polyfunctional organic amine (IV) contg. at least 2 prim. amino gps., and producing a membrane from its mixt. (IV) is a cpd. of formula H2N-X-NH2 (with X = aliphatic residue, esp. alkylene, or aromatic residue (either opt. substd. with 1 or more additional prim. amino gps.) or -R1-O-R2-, -R1-CO-R2- or -R1-CHOH-R2- (with R1, R2 are aliphatic or aromatic residues as above), pref. with mol. wt. of 60-5000, and amt. of (IV) in the soln. is 0.05-5 (pref. 0.05-1) wt.%; pref. (IV) is polyoxypropylene-triamine and/or -diamine; (IV) is allowed to react with the polyimide soln. for 1 hr. -10 days before casting the membrane. USE/ADVANTAGE - Enables the prodn. of highly selective, microporous polyimide membranes with a low sepn. limit (ultrafiltration), which are largely free of defects and therefore do not require coating with elastomer (gas sepn.) (contrast prior -art polyimide membranes).
Patent DE-4118261-A1 (DE)
Title: Liquid fuel burner with fan - has returned gas outlets between slots in air turbulence disc
Inventor: VIESSMANN HANS DR
IPC: F23C9/00
Filed: 1991-06-04
Abstract: The boiler burner with fan is particularly for liquid fuel, exhaust gas being returned from the combustion chamber seved by it. It has a double-skinned tubular housing (2) enclosing the nozzle base (1), with a return union (3) for the gas to the space (4) between its skings, and tapering in a truncated cone towards the combustion chamber. Inside the air passage (5) in the housing and before the outlet (6) is an air-baffle and turbulence-inducing disc (7). Between the turbulence sots in the disc are one or more exhaust-gas outlets (9), connected by pipes (10) to the space between the sins of the housing. ADVANTAGE - Delivers part of the exhaust gas to the flame roots while keeping it clear of the nozzle base, disc andother internal components.
Patent DE-4118393-A1 (DE)
Title: Automatic sun visor for vehicle - has light sensor which determines angle of light and intensity to position sun visor
Inventor: MEYER-STAUFENBIEL TORSTEN ING
IPC: E06B9/70
Filed: 1991-06-05
Abstract: The light sensor has the sensor at the far end of a tunnel type housing. This enables it to monitor the angle of incident sunlight as well as its intensity. The light sensor is coupled to a processor which computes the optimum setting of the sun visor for the vehicle, or in the case of a sun blind over a window, in a building, to set the amount of shade required. For a vehicle the sensor is mounted at the top centre of the windscreen. The servo drive for the sun visors is mounted between the visors (7.8), which are moved along mounting tracks (10) under the roof and down part of the windscreen. ADVANTAGE - Automatic sun shade control, processor controlled.