baber/WOPTO huggingface dataset:
Patent DE-3918809-A1 (DE)
Title: Master-slave dimmer with opto-couplers and triacs - has series connection of controlling inputs overridden by fast-switching short-circuit protective thyristors gating arrangement
Inventor: PETSCHICK VOLKER
IPC: H05B39/08
Filed: 1989-06-09
Abstract: The master dimmer (11) and the substantially identical slave dimmer (12) are equipped each with a triac (13) in series with a low measuring resistance (18) and a safety switch (22) coupled mechanically to its counterpart. The voltage drop monitoring circuit (23) gates a thyristor (24) to block the operation of the triac (13) by an opto-coupler (16, 14). The two LEDs (16) are wired together in series with push button switches (20) and a conductor (X-Y) of the switchboard. An alternative circuit arrangement of two master dimmers in parallel is also disclosed. ADVANTAGE - Synchronisation of the parallel dimmers is guaranteed and overloading is avoided.
Patent DE-3928180-A1 (DE)
Inventor: NISHIWAKI ISAO
IPC: C08L63/00
Filed: 1989-08-25
Abstract: A modified epoxy composition comprises   (a) an epoxy group-containing compound or a mixture of said epoxy group-containing compound with a curing agent or a curing accelerator for said epoxy group-containing compound, and (b) a crosslinked rubbery random copolymer obtained by copolymerizing a monomer mixture comprising (1) an unsaturated compound having a functional group reactive with epoxy group or with the active hydrogen possessed by the curing agent or the curing accelerator for the epoxy group-containing compound and (2) other unsaturated compound, wherein the component (b) is dispersed in the component (a) in the form of particles. The cured product has good mechanical strength, heat resistance, and toughness.
Patent DE-3931892-A1 (DE)
Title: Inductive proximity switch with magnetisable generator - has AC source operating frequency at which LC circuit has highest Q=factor
IPC: H03K17/95
Filed: 1989-09-25
Abstract: The magnetisable primary detecting element body (12) is connectable to an object to be detected.  The magnetic field, influenced by the primary detector, is provided by a coil unit (10), which forms, with a capacitor (16), an LC circuit.  The circuit is energised by an a.c. source to a preset frequency and is connected to an evaluating circuit (24,26), generating an output signal. The output signal generation depends on a voltage in the circuit reaching a preset value.  The a.c. source operating frequency corresponds to that at which the LC circuit has a max. The coil unit is thermally coupled to a temp. sensor (20).  The a.c. source, or the evaluating circuit, has a modifying circuit, to which the temp. sensor output signal is applied. ADVANTAGE - Wide temp. compensation even for increased switching distance.
Patent DE-3938581-A1 (DE)
Title: Air supply for gas-mask from protective suit - interior also incorporating aerosol protection
Inventor: RUITER ERNEST DE DR
IPC: A62B17/00
Filed: 1989-11-21
Abstract: A gas mask for protection from ABC weapons is made as a three-dimensional matrix with active carbon particles distributed over its surfaces. To provide additional protection from aerosols, while . maintaining low breathing resistance, air enters the mask form the space provided by the interior of a  protective ABC suit. The adsorption filter may be a plate or flat strips inside the suit, or form a cylindrical liner in the mask feeder hose drawing air from the suit interior. ADVANTAGE - Added resistance to aerosols does not add to user's breathing difficulty.
Patent DE-3939128-A1 (DE)
Inventor: ZAHLAUS HELMUT
IPC: B21D11/12
Filed: 1989-11-27
Abstract: The invention relates to an apparatus for bending rod-shaped, radially non-rotatable material (8), the bending device (3, 4, 5) being arranged replaceably on a bending swivel arm (1) which can be rotated as desired about the longitudinal axis (X) of the material to be bent. The bending apparatus is driven via a hydraulic cylinder extending in the longitudinal axis of the bending swivel arm. The swivelling radius (r) of the bending swivel arm itself is approximately equal to the diameter of a bending roller (5) around which the material is bent. <IMAGE>
Patent DE-3940244-A1 (DE)
Title: Plated composite material for coinage use - has base roll plated followed by thin electroplating layer
Inventor: SINNER ROLF DIPL ING
IPC: C25D7/00
Filed: 1989-12-05
Abstract: Composite material for use in stamping coinage consists of a core (1) made of cheap material, coated by roll plating with a layer (2) of high value material followed by a thin layer of electroplated. high value material. Pref. the roll plating layer has a thickness of at least 0.015 mm and that of the electroplating layer is 0.008-0.1, pref. less than 0.05 mm. The core is a deep-drawing steel with a roll plated layer of Cu, brass, bronze or Ag. The electroplated layer is Ni. The core may alternatively be a CuNi alloy. ADVANTAGE - Similar corrosion resistance and coloration is achieved but the expensive electroplating stage is reduced.
Patent DE-3942868-A1 (DE)
Inventor: HAUBS MICHAEL DR
IPC: B32B7/02
Filed: 1989-12-23
Abstract: A composite diaphragm for gas separation with a three-layer structure, consisting of: A) a supporting diaphragm layer of porous polymer; B) a non-porous, gas-permeable intermediate layer; C) a perm-selective layer of regularly arranged organic molecules with a layer thickness of 3 to 100 nm; where layers (A) and (C) envelop the intermediate layer (B). The perm-selective layer (C) is formed of at least one regularly arranged polymer consisting of at least one of the unsaturated monomers (I) and (II), in which R<1> and R<2> are independently CH3 and C2H5 and X is H, CH3, Cl, F and CN.
Patent DE-3943362-A1 (DE)
Title: Bipolar electrolysis cell for hydrogen and oxygen prodn. - has cell frame formed from border of central sheet to withstand higher process pressure and temp.
Inventor: ZIEM WERNER
IPC: C25B9/20
Filed: 1989-12-30
Abstract: Bipolar electrolysis cell with central sheet (106), a diaphragm (110), gas and electrolyte channels, electrodes and a seal, has the novelty that the cell chamber is formed from the border region (107) of the central sheet (106). The mirror-like arrangement of the central sheets makes possible a pressure frame (111) and a frame seal (114). The frame receives the process pressure of the cells and the surface pressure of the seal (114). The electric contacts (105) are directed from the central sheets towards both electrodes, and pressed flexibly against them. A linear flow path is formed to the electrodes (108,109) by the anode chamber (112) and cathode chamber (113) lying opposite to contacts (105) formed from the central sheet. USE/ADVANTAGE - For prodn. of H2 and O2, energy consumption is reduced by allowing a higher operating temp. and a higher process pressure to be used. In addition a higher current density increases the space-time efficiency.
Patent DE-4004225-A1 (DE)
Inventor: GELLERT JOBST ULRICH
IPC: B29C49/06
Filed: 1990-02-12
Abstract: A valve gated injection molding system for making hollow plastic products. A fixed pin (66) extends through an elongated hollow valve member (60) which is reciprocated between a retracted open position and a forward closed position in which the forward end (64) of the valve member (60) is seated in the gate (18). The fixed pin (66) has a hollow portion (90) for the flow of pressurized gas to a porous portion at the forward end (68) which is centrally located in the gate (18). In the open position, gas from the fixed pin flows into the hollow center (134) of a stream of melt (130) which flows into the cavity (20) around the forward end (68) of the fixed pin (66) to form a melt (136) bubble in the cavity (20).
Patent DE-4006847-A1 (DE)
Title: Bicycle carrier pack with solar cells - has charging batteries within pack for powering bicycle lights or radio
Inventor: WILLEMS MANFRED
IPC: B62J6/00
Filed: 1990-03-05
Abstract: The bicycle carrier pack is provided with solar cells on its external surfaces for electrically charging a battery set contained within the carrier pack. The battery set is used to provide the electrical energy for operating the bicycle lamps, a transistor radio and/or a cassette player. The solar cells may be attached permanently to the outside of the carrier pack, or they may be secured via press-stud, or hook and loop temporary fixings. ADVANTAGE - Simple provision of rechargable battery power supply.
Patent DE-4009680-A1 (DE)
Title: Two=stage centrifugal separator - has cyclone type and rotary flow type stages
Inventor: SCHULZ SIEGBERT DR ING
IPC: B04C7/00
Filed: 1990-03-26
Abstract: A centrifugal separator to segregate the particles from contaminated gas has above the cyclone (2) with the casing (4), inlet (6) and dip tube (5) a second separation stage in the shape of a rotary-flow separator (3). The dip tube (5) carrying a flow with an imposed swirl terminates at its bottom end. Its top end has at least one secondary air channel (17) which enters tangentially and cooperates with twist-producing a-vanes (1). ADVANTAGE - This combines the advantages of a cyclone separator with those of a rotary-flow separator and reduces the energy consumption.
Patent DE-4020899-A1 (DE)
Title: Domestic dishwasher - has devices to prevent malfunction arising from incorrect loading of crockery
Inventor: WIPPERFUERTH FRANZ-JOSEF ING G
IPC: A47L15/23
Filed: 1990-06-30
Abstract: A dishwasher with an overhead spray arm has unidirectional bearings. The arm is coupled to valves which open on rotation of the spray arm. A control on the bearings ensures the spray arm rotates full circle before the fluid valves remain open. The pump (1) sends fluid under pressure (13) along the supply tube (2). This pressure raises the spray arm (3) on the bearings (5) and at the same time allowing washing fluid to flow past the valve (8) into the arm (3). The pressure also creates a rotation of the arm, which is assisted by the latch (6) which prevents reversal. The spring (9), or otherwise a magnet, is employed to bring back the arm and close the valves.  ADVANTAGE - Eradicates the possibility of protruding crockery preventing the spray arm rotating completely with the fluid valves open, leaving half the contents unwashed.
Patent DE-4037053-A1 (DE)
Title: Detecting sterility or vitality of microorganisms in nutrient media - by staining with controlled amount of acridine orange then fluorescence microscopy, for e.g. sterility determn. of fermentation medium
Inventor: WARTIG MONIKA
IPC: C12Q1/22
Filed: 1990-11-16
Abstract: Method for detecting sterility and/or vitality of microorganisms in media comprises staining with acridine orange (I) soln. then microscopic examination. The (I) soln. is added to the medium, depending on its nutrient compsn. and sediment concn., mixed and incubated. Microscopic examination then reveals a fluorescent green colour for live organisms and a red-orange colour for dead ones. The dye: medium mixing ratio is tested to ensure that the (I) concn. is neither too high nor too low by incubating a portion of the sample with a known amt. of the vegetative form of a live, polymorphic microorganism of known morphology. Too much (I) is indicated by a change in the no. and morphology of this organism or a red-orange colour, while too little (I) is indicated by a lack of green-red contrast under the fluorescence microscope. USE/ADVANTAGE - This method is rapid (about 30 min. to detect live organisms) and provides reliable results without a culture stage. Material consumption is low; both fungi and bacteria are detectable, and good differentiation between dead and living cells is achieved. The method is used to monitor the sterility of fermentation medium and the vitability of prodn. strains, or to detect miroorganisms.
Patent DE-4037970-A1 (DE)
Title: Automatic start-up of high-temp. hydrocarbon fuel cells - involves preheating of fuel and air by combustion with natural convection assistance in afterburner above stack
Inventor: BOSSEL ULF DR
IPC: H01M8/04223
Filed: 1990-11-29
Abstract: A stack of ceramic fuel cells (14) in a double-walled enclosure (3) is supplied with methane (4) and air (1) via preheaters (6,2) built at different levels around the vertical exhaust pipe (12). Oxygen ion migration is promoted by warm-up using piezoelectric ignition (10) of the gaseous mixt. in the afterburner (9), aided by suction into the chimney (11) through natural convection. A temp. of 600 deg.C is attained within about 7 min, and the full 900 deg.C in 20 min. USE/ADVANTAGE - With ZrO2-based ionic condn. electrolytes.  Start-up is effected easily without input of energy from external sources and complex control loops.
Patent DE-4100921-A1 (DE)
Title: Gangway from ship to quay - comprises hinging steps coupled to common adjusting member via levers
Inventor: BACHER MANFRED
IPC: E06C9/06
Filed: 1991-01-15
Abstract: The gangway is particularly for use between a moored ship and the adjacent quay, having a walking surface between the two beams spaced apart in the horizontal direction. The surface is formed by successive individual steps (13) pivoting for a limited amount in the beams (11, 12). Fixed to each step is an intermediate lever (22), protruding radially from te hinge axis. The levers are coupled to a common adjusting lever (21), in turn actuated by an adjusting member (31). ADVANTAGE - Ensures safe transit even between widely different levels.
Patent DE-4106783-A1 (DE)
Title: Inertia balancing suspension system for vehicle - has longitudinal rods connected rods connected to diagonally opposed wheels
Inventor: INHOFFEN MARTIN
IPC: B60G21/04
Filed: 1991-03-04
Abstract: Suspension and steering system for a motor vehicle consisting of arms (16) which connect the wheel hubs (18) with the torsion springs (14) which in turn are connected by crank arms (12) to longitudinal rods (10). The rods, which are joined via the gear wheel (30) with the steering bar (20) each connect two diagonally opposed wheels (17/19). ADVANTAGE - Suspension and steering system in which dynamic demands are better met during travel in order to increase the comfort of occupants and improve their safety.
Patent DE-4112669-A1 (DE)
Title: Wooden half-timbering bearer in nail contact mode - uses wooden beams and filler bars nailed into position, with end pressure contact between them
Inventor: PATT WILHELM
IPC: E04C3/16
Filed: 1991-04-18
Abstract: The filler bars (3) are located in a plane and arranged near to the beam bars (2), whereby the pressure force-transmitting filler bars (4) contact the draw diagonals (5) on the inside of the bar ends. The pressure-transmitting filler bars (4) transmit on the bar ends a part of the pressure force through nailing to the beam bars, and the residual force on to the draw diagonals (5) via the contact seam (6). The necessary contact (6) between pressure (4) and draw diagonals (5) can also be achieved after nailing by cutting the seam and introducing a support material with sawblade thickness. The diagonals (3) are connected to the beams (2), and the existing intermediate space in the field middle is closed on each side of a trapezoidal-shaped wooden material plate. ADVANTAGE - To produce a half-timbering bearer economically, using ordinary nailed planks without additional material such as metal plates.
Patent DE-4116916-A1 (DE)
Inventor: BRITZ HERBERT
IPC: B03D1/24
Filed: 1991-05-24
Abstract: A flotation device serves to remove ink particles and dirt particles from fibre suspensions which are produced in waste paper recycling. The air admixture is carried out in stage diffusers (5). The suspension mixed with air, prior to entry into the flotation vessel (1), is passed through a deflector part (11) operating as an impact mixer having a subsequent mixing diffuser (12), one flow direction being preferred in the latter. The flotation device according to the invention is particularly suitable for the elimination of interfering substances which are present in a relatively broad spectrum of particle sizes. Particularly favourable embodiments use closed flotation vessels in which the air leaving the foam (9) can advantageously be reused for aeration. 
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Patent DE-4119249-A1 (DE)
Title: Inflatable tyre with improved rolling resistance - has specified cross-section between steel cord in breaker layer with given distance between cord layers
Inventor: TOZAWA YUKIO
IPC: B60C9/20
Filed: 1991-06-11
Abstract: An inflatable tyre is described which has improved rolling resistance and increased resistance to sepn. of the steel cords from the rubber coating. Each steel coard is formed of two wires twisted together, the steel having a carbon content of 0.8-0.92 % by wt. The rubber coating has a modulus of elasticity at 100% extension of 35-55 kg/sq.cm. Each cord and the rubber coating has a given mean cross-sectional area and the cord layers are arranged between adjacent breaker layers at a given distance from each other. USE/ADVANTAGE - The steel cord breaker layer has relatively low wt. reduced rolling resistance, and improves resistance to sepn. of cords from the rubber coating at the breaker layer edges, thus preventing cord breakage. (6pp Dwg.No.2/3)
Patent DE-4120569-A1 (DE)
Title: Rapier loom - has cut=out on band edge in order to lower the guide head gap below any possible loose warp thread
Inventor: SPEICH FRANCISCO
IPC: D03D47/27
Filed: 1991-06-21
Abstract: On a rapier loom which has at least one band, and guides at the edges, the band has a reduced cross-section, in association with the head of the guides. The warp has an open shed and in the event of weft threads being loose and falling on to the rapier band, they are held above the gap between the band and the head of the guide. This is achieved by having a cross-sectional reduction in the band. The same result is obtained by fixing another section on top of the band. An alternative alteration to the band cross-section is to have an angled side, and with the head of the guide set at the same angle. In the event of a double rapier band, the guides are placed on both edges, with a similar cut-out in the cross-section at each side of the band. The guide at the reed side may be designed to be a part of the reed. ADVANTAGE - The gap between the band and the head of the guide is located below any possible misaligned warp thread, and avoids broken ends on this account
Patent DE-4122006-A1 (DE)
Title: Staircase mfd. out of sheet metal - is made with adjustable connections to stair-well walls to enable prefab. components to be fitted to different sizes and shapes of buildings
Inventor: KENNGOTT HANS
IPC: E04F11/025
Filed: 1991-07-03
Abstract: The metal staircase sits in a stairwell between three walls (12.1,12.2,12.3). The supporting stringers are sawtooth shaped to match the stair going and rise and are made out of sheet metal. A fixing (26) connects the inner stringer to the wall and cross piece (75) connects the outer stringer to the inner stringer. Stair treads are laid across the flat or horizontal parts of the top surface of each stringer. Further fixings (61) connect the bottom ends of the stringers to the floor. USE/ADVANTAGE - Adjustable fitting allows this prefab staircase to be fitted to a constructed stairwell without precise measurements.
Patent DE-4122927-A1 (DE)
Title: Snow catchment for building roof - has panel shaped to conform with roof covering to which is fitted stop for prevention of snow slip
Inventor: STOOSS PETER
IPC: E04D13/10
Filed: 1991-07-11
Abstract: A large-surfaced shaped panel part, formed to conform with the surface shape of the roof covering, has a stop, running horizontally and parallel to the roof, which prevents the snow sliding downwards. The shaped panel part, on its underside, is provided with a non-metallic layer.The  lower surface of the panel can be profiled.The weight of the snow on the panel increases the stability of the snow catcher. USE/ADVANTAGE - To prevent snow sliding off roofs.
Patent DE-4133380-A1 (DE)
Title: Regulator for throttle valve in IC engine - has gear with larger reference diameter with internal toothing, and pivot axis of second gear within larger reference diameter
Inventor: STIEFEL HANS-PETER
IPC: F02D11/10
Filed: 1991-10-09
Abstract: The regulator is for control of an IC engine, with a pivoted throttle valve. It has a servo motor with a rotor, and a transmission. This has two meshing toothed gears with different reference diameters, to transmit a pivot movement of the rotor to a pivoted movement of the throttle valve. Both gears have a stationary pivot axis. The toothed gear (10) with the larger reference diameter has internal toothing (16). The pivot axis (30) of the gear (10) with the smaller reference diameter, is located within the larger reference diameter. The internal toothing covers less than 360 deg. ADVANTAGE - Requires smaller space, which results in larger transmission ratio.
Patent DE-4133917-A1 (DE)
Title: Heating and/or cooling system for vehicle interior - has two zeolite absorption reactors with alternating air flows.
Inventor: KHELIFA NOUREDDINE DIPL PHYS D
IPC: B60H3/02
Filed: 1991-10-12
Abstract: The arrangement is for heating and/or cooling the cab or passenger space of a vehicle. It has an air supply channel (7) and an air removal channel (6), with two absorption reactors (20.1 20.2) having reaction chambers (21.1 21.2) containing an absorbent such as zeolite. The two reactors are so arranged that the air flow carrying the absorption heat from one reactor can flow through the other reactor and simultaneously a moisture removing air flow can pass through the first reactor. USE/ADVANTAGE - Arrangement which allows the continuous heating and/or cooling of the passenger compartment of a car over a long period.
Patent DE-4135865-A1 (DE)
Title: Pressure limitation valve in hydraulic plant - has seat body receiving pressure medium flow in lift direction and piston-shaped attachment in outflow direction
IPC: F16K17/04
Filed: 1991-10-31
Abstract: The piston-shaped attachment (14) is guided in a housing part (18), and on it connects a further piston-shaped attachment of smaller dia. This is guided in a corresp. bore (17) in the housing part (18). The ring space (23) in the housing part limited by the piston-shaped attachment (14) is activated by the pressure medium pressure in the inflow direction of the seat body. The guide bore (16,17) for the piston-shaped attachments (14,15) of the closure body (13) is socket-shaped and has a support surface (21) on a housing stop surface (22) and radial play for alignment of the seat body on the housing seat edge (12). USE/ADVANTAGE - To improve the function of a differential valve for pressure limitation in hydraulic plant, achieving a good damping of the conical closure body.
Patent DE-4141454-A1 (DE)
Inventor: VORBRUEGGEN HEKMUT PROF
IPC: C07H19/20
Filed: 1991-12-12
Abstract: The invention concerns a method for the preparation of 2-fluoropurine derivatives from 2-aminopurine derivatives which are transformed into HF/pyridine or HF/pyridine/H2O in the presence of a nitrite.
Patent DE-4142731-A1 (DE)
Inventor: HUTH HANS-ULLRICH DR
IPC: C08F220/04
Filed: 1991-12-21
Abstract: Preparation of biocidal polymers and copolymers based on free radical-polymerizable and copolymerizable ethylenically unsaturated monomers containing monomer units composed of BCM salts of ethylenically unsaturated carboxylic acids, sulfonic acids or phosphonic acids, solutions thereof and preferably aqueous dispersions thereof. Processes for their preparation and their use as fungicidal and algicidal impregnating agents, paints and finishing agents for scumbles and dispersion paints providing protection against blue staining on wood, for synthetic resin renderings, for exposed concrete paints and for textile finishing agents.