baber/WOPTO huggingface dataset:
Patent DE-4012491-A1 (DE)
Title: Two stroke IC engine - has fuel injection valve which begins to operate after closing of exhaust valve
Inventor: KRUEGER HERMANN DR
IPC: F01L1/38
Filed: 1990-04-19
Abstract: The two-stroke ic-engine has at least one inlet (4) and one exhaust (5) valve per cylinder (1). It has the valve timing arranged to provide an overlap in the operation of the two valves in order to scavenge the combustion chamber with fresh incoming air. The engine has a sparking plug (6) and a fuel injection valve (10). To prevent unburnt fuel from flowing out of the exhaust valve the timing of the fuel injection valve (10) is so arranged that it does not begin to operate until the exhaust valve (5) is closed. USE/ADVANTAGE - Reduction of exhaust pollution.
Patent DE-4024907-A1 (DE)
Title: Controlled power amplifier with input voltage monitoring - adjusts input attenuating section when input voltage is above given threshold
Inventor: GRUENSCH ECKHARDT
IPC: H03F3/30
Filed: 1990-08-06
Abstract: The amplifier has a controlled input attenuating sections (ED) which is set to a value to an amplifier output level below the max. effective sinusoidal output when the amplifier input voltage is above a given threshold value. Pref., the latter input voltage threshold has a value which, when multiplied with the amplification factor, corresponds to the amplitude of the power amplifier operating voltage. ADVANTAGE - Improved efficiency and low operating voltage. Even when over controlled does not lead to interruption of operation.
Patent DE-4028936-A1 (DE)
Title: Bridge-like structure for theatre scenery -  has rectangular frame supported onfour legs and can be easily assembled
Inventor: EISENBERG HANS JOCHEN
IPC: E04H3/24
Filed: 1990-09-12
Abstract: A bridge-like structure forming part of theatre scenery is used for scenes involving action on two storeys. The structure consists of a rectangular frame (1) supported on four legs (2). - The rectangular frame consists of two longitudinal members (3) connected at their ends by cross-members (4). These frame members have longitudinal grooves (7) to receive the ribs (14) of adapter plates (12, 13) which together with corner brackets (17) fasten the end members (4) to the longitudinal members (3). Each corner bracket (17) has a socket to receive the upper end of a leg (2) which is clamped in position by a sliding wedge (25) which is actuated by a lever (41).
Patent DE-4029396-A1 (DE)
Inventor: SCHULTZE WERNER DR
IPC: C22B21/06
Filed: 1990-09-17
Abstract: The invention relates to an apparatus for the purification of molten non-ferrous metals, in particular molten aluminium and the like, by flotation of the impurities and degassing by reducing the hydrogen partial pressure in the melt with the aid of a flushing gas flowing through the melt inside a closed chamber formed by a trough (1) or the like provided with a removable cover (2). According to the invention, the trough (1) is provided with a central chamber (10) which is formed by an inner tube (5) and which is connected in its end region to the trough chamber at the circumference of the inner tube, the flushing gas feed and the feed for the melt to be purified being associated with the central chamber. Preferably, the inner tube (5) is concentrically enclosed by further tubular elements (6 to 9) which form a chamber system in the trough connected in syphon-and-labyrinth fashion for the melt to flow through. The purification apparatus according to the invention makes it possible to achieve a particularly effective purification of the melt even with reduced amounts of flushing gas. <IMAGE>
Patent DE-4033382-A1 (DE)
Title: Wildlife safety warning system - in which warning sound signal is set of by headlamps of approaching vehicle
Inventor: FOERTSCH HANS DIETER
IPC: A01K15/02
Filed: 1990-10-20
Abstract: The wildlife warning system is used to warn wildlife of approaching vehicles. It is mounted on lamp posts on the road. The system comprises at least one sound emitter (8) which is actuable by a switch stage (12) to emit an acoustic warning signal. The switch stage (12) is connected to a sensor (6,7) on the lamp post which reacts to light from the headlamps of an approaching vehicle to actuate the switch (12). USE/ADVANTAGE - A simple inexpensive system which can easily be integrated into existing lamp posts etc. Gives clear warning of approaching vehicles when it is dark or in half light.
Patent DE-4033756-A1 (DE)
Title: Storage and feed unit for cartridges - has outers positioned parallel to each other and in plane at right-angles
Inventor: JAKUBASCHK HORST ING GRAD
IPC: F41A9/45
Filed: 1990-10-24
Abstract: Retainers (88) are provided for the cartridges which are so formed that equipment connected to a firearm can engage over the cartridge and remove it. Each retainer consists of at least two shell components (89,90) which engage around the cartridge. One of each of the shell components engages the cartridge at an angle of approximately 90 deg. The shell components have control nose formations for regulating their movement, and which stand outwards tangentially from the components, facing one another. A pivot lever is provided between the control nose formations and holds them at a distance. The retainers (88) have a securing lever (91) which prevent the displacement of the cartridge in the direction of its rear end. USE - As a round magazine, for use in conjunction with a 40 mm machine gun.
Patent DE-4035162-A1 (DE)
Title: Pneumatic or hydraulic multi-way control valve - has longitudinal pockets in spool surface to connect ports as valve is switched
Inventor: LAMPENSCHERF INGO
IPC: F16K11/07
Filed: 1990-11-06
Abstract: The valve has a spool (9) sliding in the cylindrical bore (2) of housing (3). On one side of the valve are connections (14, 15, 16) to annular spaces (14', 15', 16') in the bore, and on the other side are connections (17, 18) to annular spaces (17', 18'). On each side of the annular spaces are circumferential grooves with O-rings (20) in light sealing contact with the surface of the spool. The outer surface of the spool is smooth, except for two pockets (21, 22) machined in the direction of the spool axis. These are repeated at 120 deg. intervals around the spool. With the spool to the right (as shown), the pockets provide pathways connecting space (15') to space (17') and space (16') to space (18'). Other connections are similarly made via the pockets when the spool is moved to the left. At no stage is there a circumferential shearing edge tending to roll the O-ring seals out of position, causing high wear and jamming of the spool. ADVANTAGE - Easy movement of spool with good sealing. Low rsistance. Simple, low-cost design. Easy to assemble and service.
Patent DE-4039764-A1 (DE)
Title: Insert for hollow charges - for projectiles produced by chemical or electrolytic deposition
Inventor: SCHARF PETER DIPL ING
IPC: C25D1/02
Filed: 1990-12-13
Abstract: Insert for shot or projectile-forming hollow charges is mfd. by deposition of heavy metal particles and matrix particles on an insert mandrel corresp. to the required thickness by chemical or electrolytic deposition in a normal bath. Heavy metal particles are 0.1-50 micron in size and are of Mo, W, V or Ta, while matrix particles are of Cu or Ni. The insert is removed mechanically or thermally and is heat treated. ADVANTAGE - Low cost, while retaining penetration characteristics.
Patent DE-4041469-A1 (DE)
Title: Reinforced ABS moulding materials with good matrix-filler coupling
Inventor: HEGER GEORG DIPL CHEM DR
IPC: C08L55/02
Filed: 1990-12-22
Abstract: Filler-reinforced ABS moulding materials (I) contain 4-25 wt.% tert, alkyl ester gp.-contg. graft copolymers (II) based on diene or acrylate rubbers. Also claimed is a process for the prodn. of (I), by adding (II) and the filler to the ABS components or by mixing (II) with the ABS components and adding filler to the melt. (I) consists of (A) grafted rubber and (B) thermoplastic resin based on styrene, alpha-methylstyrene, acrylonitrile, MMA and/or maleic anhydride (with total amt. of A+B = 86-15 wt.% of the mixt. (A+B)+C+D), contg. (C) 4-25 wt.% (II) and (D) 10-60 wt.% fillers; (C) is obtd. by graft copolymerisation of (C.2) 5-45 wt.% rubber particles (Tg below 0 deg.C) with a sheath (C.1) consisting of (C.1.1) styrenes, alpha-methylstyrenes, (meth)acrylonitrile, 1-4C vinylcarboxylic acids and/or (prim. or sec. 1-10C alkyl) (meth)acrylates, pref. combinations of styrene or alpha-methylstyrene and acrylonitrile, and (C.1.2) 1-12 wt.% (4-10C tert.-alkyl) (meth)acrylate(s).
Patent DE-4041983-A1 (DE)
Title: New 2-methyl-sulphonyl 3-sulpho-propyl ammonium betaine cpds. - by reacting allyl ammonium salt with chloro-acetic acid and hydrogen sulphite etc.
Inventor: OHME ROLAND DR
IPC: C07C317/28
Filed: 1990-12-21
Abstract: New 2-methylsulphonyl -3-sulphopropyl-ammonium betaines (methylsulphone sulphobetaines) are of the formula R1R2R2N+-CH2-CH(SO3CH3)-CH2-SO3(-) where R1 and R2 = H or 1-3 C alkyl; R3 = H, 1-22 C alkyl or an alkyl gp. attached by a -CH2-CONH- gp. (I) are prepd. by a 2-stage reaction, involving (1) reacting allylammonium salts of the formula R1R2R3N+-CH2-CH=CH2 (II) with equimolar amts. of ClCH2COOH and twice molar amts. of a metal H sulphite, pref. NaHSO3, in the presence of a catalytic amt. of a peroxidisulphate (III); and (2) adding a catalytic amt. of iodide and boiling the soln. until the sulphinate content has been reduced to zero. USE/ADVANTAGE - (I) are useful as organic intermediates. Prods. in which R3 = a long-chain alkyl gp. can be used as polyfunctional surfactants and those with short chains as hydrotropic cpds. (I) can be prepd. easily in high purity and high yield from readily available starting materials, without by-prod. formation.
Patent DE-4101606-A1 (DE)
Title: Plate holding force booster for press - has short stroke cylinders of multistage type engageable by several pressure levels via valves
Inventor: PETTER WIELAND DR
IPC: B21D24/14
Filed: 1991-01-21
Abstract: The sheet plate holding forces on press table cushions are boasted by a device, in which tie-rods to a traverse generate a force flow for a counter holding force. They can be mutually decoupled. The traverse is coupled to the cushion plate by stop bars. The cushion plate carries short stroke cylinders, acting with the drawing ring. The cylinders (4) are of multi-stage type and are charged by multi-way valves (6,7), and pressure accumulators (8,9) with several pressure levels. USE/ADVANTAGE - For drawing presses without complex valving and microprocessor control.
Patent DE-4105677-A1 (DE)
Title: Transversal excited fibre=optic laser - has cylindrical profile with transmission channel and cooling channels with outer surface metal-coated
Inventor: KRUEGER HANS DIPL PHYS
IPC: H01S3/041
Filed: 1991-02-22
Abstract: A transversal excited carbon dioxide waveguide laser has a cylindrical profile (1) with an internal transmission space (3) and built-in cooling channels (4). The outer surface of the unit is covered by a metal layer (6, 7) to form the control electrodes. Zig-zag conductor paths (11) are formed over the surface. The second channel unit (2) is located on the first. Glass solder strips (12) are heated to form a vacuum-tight seal. Cooling channels (13, 14) are also formed. ADVANTAGE - Reduced cost by simple construction.
Patent DE-4110875-A1 (DE)
Inventor: BEISSWANGER RUDOLF
IPC: F26B13/20
Filed: 1991-04-04
Abstract: A web guiding structure in a drying section downstream from a coating device, and having suspension and infrared dryers and with a directly preceding coating device for paper or board. A rigid beam-like chest-like web bend device with blowing elements is adapted to produce a pressurized gas cushion for the web for contact-free bending of the web in its direction through an angle between 50 DEG and 120 DEG , so that with an increase in its distance from the bending device, the web also moves away from the coating device. Following the bend device a heating device or a suspension device having beam-like, chest-like blowing air guide devices in each case produces a course of the web undulating in the direction of movement of the web (web valleys and crests extending in the transverse direction) on the upper and lower sides of the web. Further dryers are included, with radiation and/or a hot gas action, and are alternately arranged with drying devices in the form of infrared dryers and suspension dryers, alternating at least twice.
Patent DE-4114538-A1 (DE)
Title: Steel-concrete construction with collision resistant lining - made of concrete with high pore volume to absorb kinetic energy of colliding body
IPC: E01F15/14
Filed: 1991-05-04
Abstract: Steel concrete or steel construction is provided with a cover layer to protect it from impact of large masses with high kinetic energy. The cover consists of a concrete lining having high degree of porosity which enables the large mass to penetrate the lining and absorbs its kinetic eneryg. The thickness of the lining and pore volume is adapted to the weight of the mass and its probable kinetic energy. USE/ADVANTAGE - As support or cover construction. The support cabability and/or density of the construction is not harmed by impact with masses.
Patent DE-4115404-A1 (DE)
Title: Adsorption filter for purification of contaminated gas flow - comprises activated carbon@ sandwiched between two layers of porous fibrous web by needle-bonding
Inventor: GUTSCHE EUGEN
IPC: B01D39/08
Filed: 1991-05-10
Abstract: Process for mfr. of a filtration medium consisting of porous carrier material in which is entrapped activated carbon, comprises a) distibuting a layer of activated carbon as an aqueous, binder free, mixture, on to a layer of fibrous web; b) covering the activated carbon layer with a further fibrous web layer; c) needle-bonding the web/carbon sandwich and, d) removing the water from the activated carbon layer by drying. USE/ADVANTAGE - Filter medium with high absorption efficiency, unimpeded by adsorption of any binder adhesive to the activated carbon useful for large scale purificn. of smoke gases, etc. to remove sulphur, halogen, dioxine and furan compounds and heavy metals, etc.
Patent DE-4117715-A1 (DE)
Title: Carding machine parts on fibre processing machinery - are fitted with card clothing in zones with varying depth of gap space
Inventor: LEHMANN KARL-HEINZ DR ING
IPC: D01G15/86
Filed: 1991-05-30
Abstract: Equipment on fibre processing machinery, such as cards, supports card clothing made up from saw-tooth wire. This has a pliable base, a blade projection, and a tooth formation at the tip of the blade. The thickness of the base creates a gap between the blades when lying alongside one another. The depth of this gap is increased or decreased in the end zones relative to the middle zone of the swift. Pref. the swift has a smooth surface and the sawtooth wire is wound spirally edge to edge. In the end zones the height of the blade is increased by reducing the height of the base which gives a large gap space relative to the gap space in the middle zone. This may be reversed and applied to other elements of a card, such as flats, workers and doffers. A similar procedure exists for pointed wire card clothing, with variation in the zones of the angle of wire, depth of garniture base or density of wires. ADVANTAGE - The method avoids or reduces the possibility of over accumulation of fibres in a particular zone, reducing neps.
Patent DE-4119526-A1 (DE)
Title: HV meandering electrode system for electrostatic holding plates - has tracks formed on board with outer tracks receiving HV to cause electrostatic discharge
Inventor: SCHUETT EBERHARD
IPC: H05K1/02
Filed: 1991-06-13
Abstract: An electrostatically chargeable holding plate has a frame (6) contg. a pair of conductor tracks (3,4) having horizontal sections with spaces in-between. Located in the space, a meandering track (5) is coupled to the outer frame which is earthed. Two conductor tracks (3,4) are coupled to the h.v. supply and result in the generation of an electrostatic discharge. The ends of the tracks are rounded (10,12). Coulomb discharge is minimised by inclusion of non conducting islands (13). USE/ADVANTAGE - E.g. holding paper sheets for printing. Improved life.
Patent DE-4120845-A1 (DE)
Title: Hydraulic pressure producer - has pneumatically-driven hydraulic piston pump with valves and fluid container integrated in square block
Inventor: ROEDIGER KLAUS
IPC: F04B23/02
Filed: 1991-06-25
Abstract: The hydraulic pressure producer has a pneumatically-operated hydraulic piston pump (1), a storage holder (10) for the hydraulic medium and a valve system (11-13) between the pump and the container on one side and the user on the other. The valve system and the container are integrated in a quadriform connection block (18), with the pump attached by a flanged connection. The container has three connections (16-28) for a selectively attachable filling and venting union (29) and two control unions (30,31). ADVANTAGE - Can be applied to a circular switching table, as an integrated aggregate.
Patent DE-4122660-A1 (DE)
Title: Skip for waste material - has sidewalls diverging from bottom with external supports and other adjustable supports
Inventor: BAUMANN WOLFGANG
IPC: B65D88/02
Filed: 1991-07-09
Abstract: The open-topped skip has transverse walls at an obtuse angle to the bottom and extends for only part of the skip height. The lengthwise walls (3,4) diverge upwards, being at more than 90 deg. to the bottom (2), while there are protruding supports (10,11) on the outside of these  and/or the transverse walls (5,6). Other supports (14 - 17) at the top or bottom are adjustable between the working and retracted positions. In the case of the bottom supports, in the working position they are extended outwards laterally, whereas the top ones protrude inwards above the skip interior. ADVANTAGE - Minimises space required during transit and storage.
Patent DE-4131280-A1 (DE)
Title: Turret for armoured fighting vehicle - has crew space in front of which is weapon installation and with munition storage at rear
Inventor: JAHN HELMUT
IPC: F41A9/37
Filed: 1991-09-20
Abstract: The munition store is arranged laterally near the longitudinal centre line of the turret and in it munitions are located in the longitudinal direction of the turret. In the area behind the munition store (3) is a charge store(4) in which a predetermined number of charges are arranged in a belt magazine (5) movable crosswise to the longitudinal direction (LM) of the turret (KPT). A delivery path (6) providing the index positions of the belt magazine (5) is connected with the area immediately behind the weapon installation (1) for automatic transport of the charges. USE/ADVANTAGE - To maximise the use of space in a military vehicle turret.
Patent DE-4136924-A1 (DE)
Inventor: BURGER DIETHARD
IPC: H02K11/20
Filed: 1991-11-11
Abstract: The invention relates to a support (1) for an electric motor (4) of a kitchen machine, in particular a lemon squeezer, which has a board (2) consisting of insulating material with a holder for the attachment of the motor (4). Constructed on the board (2) are end sections (13 to 16) which can be connected via connecting cables (which are not shown) to an electrical power source and which are used for the connection of contact tabs or contact pins (18) which are constructed on the motor (4). The contact pins (18) are connected to the end sections (13 to 16) in the form of touching contacts. The end sections (13 to 16) are constructed on conductor tracks (5 to 8) which are stamped out of sheet metal and are constructed to be elastically deformable in such a manner that the contact pins (18) of the motor (4) can be pressed in a resiliently elastic manner against the end sections (13 to 16) when said motor is being displaced in the longitudinal direction of the motor axis. Contact tabs (23, 24) which are adjacent to one another on the conductor tracks (5, 6) are integrally formed in order to form a switch, one of which contact tabs (23) can be pressed against the other contact tab (24) by elastic deformation, with the aid of a moveable operating element (27). In consequence, a connection of the contact pins (18) of the motor (4) to the end sections (14, 15) which are constructed on conductor tracks (5 to 8) is formed in a manner which can be produced cost-effectively and can be installed easily, the conductor tracks (5 to 8) also forming an electrical switch (23, 24) at the same time. <IMAGE>
Patent DE-4141089-A1 (DE)
Title: Aggregate support for vehicle engine and transmission - combines fastening frame with auxiliary frame and elastic mountings
Inventor: SCHAEFER FRANK
IPC: B60K5/12
Filed: 1991-12-13
Abstract: The aggregate mounting for the support of a vehicle engine (21) and transmission housing (22) has a fastening frame (46) releasably secured to the body of the vehicle and at least one common fastening point (58) with an elastic mounting (32,38) on the auxiliary frame (20). The fastening frame can be screwed to longitudinal carriers (12,14) on the chassis wherein at least one screw passes through the frame and the elastic mounting. ADVANTAGE - Engine and transmission mounting system which is simple and cost effective to make and assemble.
Patent DE-4215921-A1 (DE)
Title: Continuous determn. of organic fluoro cpds. in gases - by hydrolysis in absorption soln. and fluoride ion determination, using fluoride selective electrode
Inventor: ANGENENDT HEINRICH DR
IPC: G01N27/416
Filed: 1992-05-14
Abstract: A process for the continuous determination of organic fluoro cpds. (I) in gases by means of hydrolysis is claimed. The gas contg. (I) is mixed with an aq. soln. of an aromatic amine (II) with a pKa value of 2.0-7.0 and/or an aromatic aminosulphonic acid (III) and/or an amino carboxylic acid (IV) with a pKa2 of 2.0-7.0. The aq. soln. has a pH of 5.0-8.0 and the aq. soln. is sedp. after mixing and the fluoride ion content measured electrochemically. USE/ADVANTAGE - The process is useful fr the continuous determination of (I), such as acetyl fluoride, benzoyl fluoride and cyanurfluoride in gas streams, particularly air and is useful for process control. Use of (II), (III) or (IV) enables a wider range of (I) to be determined rapidly and continuously at low temps. then prior art process.
Patent DE-4219115-A1 (DE)
Title: Ventilators in maintenance pits under tracks - are used for ventilation of working areas in train maintenance shed
Inventor: BORBELY GYOERGY J DIPL ING
IPC: F24F7/08
Filed: 1992-06-11
Abstract: The device is for use in a shed having one or more tracks for train units, and a maintenance pit under the track. The track is carried on supports, which extend into the pit. There is a working area on both sides of, and under a train unit. A number of ventilator appliances (10) is evenly distributed over the length of the working pit (3). Each appliance has a branch unit (13) with at least two branches, and an air passage (30,40) on one branch. The air passages are located inside and outside the pit, pref. in a ratio 1: 1. The branch units are thermally isolated from the pit wall. USE/ADVANTAGE - Ventilator for railway train maintenance pits under tracks gives comfortable working conditions in winter and summer, ventilation can be adjusted to configuration of train units
Patent DE-4226087-A1 (DE)
Inventor: KUEBLER HANS
IPC: C02F3/28
Filed: 1992-08-06
Abstract: The invention describes a process for the biological treatment of organic substances, especially for the anaerobic biological hydrolysis for the following biomethanation, having pH control, in which the dissolved and/or undissolved organic substances fed to a first reactor (1) are subjected in this reactor at least to an acidification, the majority of the undissolved, at least acidified, organic substances withdrawn from the first reactor being fed to a second reactor (2) for at least a solids hydrolysis to be carried out, and the majority of the dissolved, at least acidified, organic substances from the first reactor (1) and from the second reactor (2) being fed to a third reactor (3) for at least methanation to be carried out. <IMAGE>