baber/WOPTO huggingface dataset:
Patent DE-3928772-A1 (DE)
Title: Sepn. of methane:phosphonic acid mono:alkyl ester(s) - from mixts. contg. unreacted methane:phosphonic acid, by distn. at reduced pressure in presence of polyethylene glycol di:methyl ether(s)
Inventor: ELSNER GEORG DIPL CHEM DR
IPC: C07F9/48
Filed: 1989-08-31
Abstract: Process for sepn. of methanephosphonic acid monoalkylester (I) from an essentially alkanol-free reaction soln. from the esterification of methanphosphonic acid CH3P(O)HOH (II), with 3-5C alkanols and consisting predominantly of (I) and unreacted (II), comprises distilling the (I) out of the reaction mixt. in the presence of (ethyleneglycol)ndimethylethers CH3-O-(CH2CH2O)nCH3 (III) at a temp. of 100-110 deg.C and a press. below 2 mbar. USE/ADVANTAGE - The presence of (III) during the distn. allows greatly improved distillative sepn. of (I) from a mixt. of (I) and (II) than prior art distn. processes without the (III) or using different liq. assistants. After (II) has been distilled off, the sump residue can be recycled to the esterification stage, opt. after treatment with an oxidising agent such as H202 to destroy contaminating decompsn. prods. The presence of (III) causes no side reactions and does not interfere with the esterification process.
Patent DE-3928868-A1 (DE)
Title: Fixing clamp for panels of concrete shuttering - is in form of inverted U with adjusting screws at lower ends of legs
Inventor: WEISS DIETER
IPC: E04G17/12
Filed: 1989-08-31
Abstract: The shuttering panels (10,12) for forming a concrete structure, are held at the required distance from each other by means of an inverted U shaped clamp (14). This U shaped clamp is formed from two inverted L shaped members (16,18) with the horizontal arm of the one L shape fitting telescopically into the horizontal arm of the other L shape. The distance between the panels (10,12) is adjusted by means of adjusting screws (40) fitted to the lower end of each vertical leg. The force exerted by the pressure of the concrete is resisted by a screwed bar (30) which connects the two vertical legs (16,18) near their upper ends and has a nut (36)  at each end. USE - Casting of concrete structures.
Patent DE-3930379-A1 (DE)
Title: Flat item-sharpening mechanism - has magnets below inclined supports over which endless belts run
Inventor: HAHN KARL-HEINZ
IPC: B24B3/36
Filed: 1989-09-12
Abstract: The sharpening mechanism is for flat items such as knife blades, the magnetic items being directed below a grinder disc etc. A set number of endless conveyor belts (10) run round driving (8) and return (9) drums, and over interchangeable supports. The supports are set in an inclined position and have lateral stop strips, below which are flat magnets (14). Thus the items are held at a set angle of up to 45 deg for  machining against the supports and between the strips. USE/ADVANTAGE - Knife sharpening machine several items can be parallel - or taper-ground at the same time.
Patent DE-3930801-A1 (DE)
Title: Test-tubes aligned in passages between hollow cooling blocks - transfer heat to externally cooled water circulating into block interiors
Inventor: MUELLEJANS HERBERT DR ING
IPC: F25D17/00
Filed: 1989-09-14
Abstract: Test tubes (11) to be maintained at constant temp e.g. contg. blood for analysis are lined in rows in the straight passage ways formed between cooling blocks (11) inside a thermally insualted casing. Heat emitted from the tubes, predominantly by radiation is absorbed by the blocks pref. coloured block to facilitate absorption and transmitted to cooling liq. travelling inside the blocks and directed in circulation through the cooled evaporator (17) of an external cooling unit. Air flow along the passage ways is provided by an externally mounted blower, whose operation may be controlled by a sensor set in a monitoring test tube filled with liq. of comparable behaviour with the analysis samples. Within the cooling blocks liq. may glow in zig-zag direction round partitions alternatively projecting from opposite block sides. ADVANTAGE - Avoids bacterial infection and leakage of cooling water which could falsify results.
Patent DE-3931808-A1 (DE)
Title: Robot gripper for handling several layers of material elements - has movable plates and gripper fingers moved by motor with worm gear
Inventor: THOM HEINZ DR ING
IPC: B25J15/00
Filed: 1989-09-23
Abstract: The gripper for handling several layers of thin sheets of material or the like placed on a brush-like support or the like from where they are accessible from below comprises two plates (1,2) connected at a distance by guide bolts (5). Between these two plates there is a third movable plate (3) which is held in a rest position by means of springs (6) and a stop and on which is fixed the motor (7) which has a worm gear (8) for two rotatable gripper fingers (9,10).  These fingers are mounted rotatable in the middle plate (3) and rotatable and longitudinally displaceable in the lower second plate as the cam face. The support element (10) which is attached at right angles on the rotatable finger rod can be turned in a circular sector  shaped recess of the second plate during the rest position.  The second plate can be moved down against spring action with the gripper fingers. USE - As a robotic system for handling cut-out blanks of material etc.
Patent DE-4001339-A1 (DE)
Title: Sales display stand assembly - incorporates foot with anchoring magnet in underside
Inventor: HERLITZ KLAUS DR
IPC: G09F7/18
Filed: 1990-01-18
Abstract: The display stand is for supports, of magnetisable material, accommodating items for sale, and comprises a foot (10) with a mounting for one or more panels. The foot incorporates one or more anchoring magnets (12) in its surface towards the supporting surface. The magnet can be disc-shaped, fitting in a recess in the underside of the foot. It can be arranged to pivot at the middle, while two or more compression springs act against it. USE/ADVANTAGE - Foot of display stand forms long-term but detachable anchor.
Patent DE-4008851-A1 (DE)
Title: Van-type road vehicle - has tent with roof and sidewalls rendered self-supporting by inflatable chamber
Inventor: RANKL GERALD
IPC: B60P3/42
Filed: 1990-03-20
Abstract: The van-type vehicle has a tent (13) with roof section (4) extending from its roof (3) at one end at least. One or more sidewalls (8) extend from the tent roof to the ground (9), while an inflatable chamber renders the tent self-supporting. A container is provided on the van body (2) for stowage of the tent after the chamber has been deflated, typically on the roof. USE/ADVANTAGE - Simple and rapid erection of weatherproof working space, while requiring little space when stowed for transit.
Patent DE-4011891-A1 (DE)
Title: Water-air mixture atomising nozzle - incorporates axial water connection and radial air connection
Inventor: BENDIG LOTHAR
IPC: B05B7/04
Filed: 1990-04-12
Abstract: Them atomising nozzle handles a mixture of a liq., such as water, and a gaseous medium, such as compressed air. It has an axial connection for the water and a radial connection for the compressed air. The axial connection (16) for a water is formed by a tapped hole in the body of a nozzle (13) which is screwed into the atomising nozzle housing (10). This water nozzle has a tubular extension (17) which extends into the throat of the compressed air outlet (18) to form an annular convergent divergent nozzle for the compressed air. A deflector (24) is fitted as the outlet of this convergent divergent nozzle and may be in the form of a ball, a cone, or a plate. USE - Atomising nozzle for air-water mixture.
Patent DE-4014796-A1 (DE)
Title: Linearising transfer characteristic function - processing signal by compensation circuit based on filtered components for electronic component or circuit
Inventor: SEIDENBERG JUERGEN DR
IPC: H04B3/06
Filed: 1990-05-09
Abstract: The input (E) is received by two stages that provide  second (IM2) and third (IM3) order functions adjusted by control signals (y1,y2) generated by a regulating stage (R). The regulator responds to two different  frequency components (x1,x2) provided by a pair of filters (F2,F3) coupled to an output stage (B). USE/ADVANTAGE - May also be used to linearise a  laser diode characteristic. Minimises intermodulation interference.
Patent DE-4028325-A1 (DE)
Title: Ignition timing circuit for engine - adjusts timing when fuel mixture is enriched for higher loads
Inventor: FUJIMOTO SACHITO
IPC: F02P5/145
Filed: 1990-09-06
Abstract: The improved load capability of an engine is obtained by sensors which monitor the louding and controls which enrich the fuel/air mixture if the load demands remain longer than a programmed time interval. The system computes the new firing point, for the enriched mixture, and sets the actual firing point between this and the normal running point. The actual firing point is obtained by a retardation circuit in the CPU. The loading of the engine is determined by monitoring the engine speed and the fuel injection rates. Simple timing circuits monitor both parameters. ADVANTAGE - Improved engine control, less risk of knocking.
Patent DE-4031336-A1 (DE)
Title: Pedal driven miniature submarine -  is propelled by rear fin mounted on end of swinging arm
Inventor: KNAF WILHELM
IPC: B63H1/36
Filed: 1990-10-04
Abstract: A miniature submarine is propelled by means of an oscillating fin (5) mounted on the end of a swinging arm (6) which extends from the rear end of the submarine. The swinging arm is actuated by pedals (13) which are connected by cables (14) to the swing arm. The fin is mounted on a vertical spindle (7). A spring attached to the fin causes the fin to swing in the reverse direction to the arm (6) as it swings from side to side under the action of the pedals. USE/ADVANTAGE - Miniature submarine which does not require an electric motor and batteries.
Patent DE-4031526-A1 (DE)
Inventor: PROSKE REINHARD
IPC: B01J47/11
Filed: 1990-10-05
Abstract: The invention is based on a process for ion exchange in aqueous solutions by means of ion exchange resins (hereinafter abbreviated to "resins") in ion exchangers in which the resins are alternately charged, regenerated, and possibly treated and rinsed. In order to be able to remove the solution concerned without problems and also more economically, the process first provides for containers (18) with the resin (19) to be taken into a treatment chamber (17) whereafter the aqueous solution is introduced into the container and directed through the resin. Then, by lifting the container and holding it above the treatment chamber, the solution in the container and resin is caused to run off. Thereupon the container is taken to one or more chamber(s) (34, 36, 37, 37') of a regenerating, treating or rinsing station into which it is lowered and treated with the regenerating solution. Then, once again, by lifting the container and holding it above the regeneration chamber, the remaining regenerating solution is caused to run out of the container and the resin. Finally the container is taken to a further chamber for charging or regeneration. The invention also concerns an installation for implementing the process.
Patent DE-4031628-A1 (DE)
Title: Three=way regulator valve - has piston for controlled alternating connection of tank or system pressure line to regulating pressure chamber
Inventor: WOELFGES HANS
IPC: G05D16/20
Filed: 1990-10-05
Abstract: The 3-way valve (2) incorporates a regulating piston (4) displaceable in a housing bush (6) which has the form of several seals fitted in a valve control block. The end section of the bush is sealed in a recess (10) of a valve cover (12) which has a staged hole (14) issuing into a control pressure chamber (16) of the valve. The regulating piston (4) is staged with two effective diameters (D1, D2). The larger dia. defines the size of a control pressure surface on the one side of the piston, whilst the smaller defines the surface exposed to the ruling user pressure. A regulating pressure chamber (18) is formed by control edges (20, 22) formed on evenly distributed through apertures (24). USE - As a three-way regulating valve for pressure medium.
Patent DE-4033174-A1 (DE)
Title: Light metal air freight container -  has hollow sections with connecting flanges and plates, with fish-plates at corners, and rivets
Inventor: KLAPPERICH LEO DIPL ING
IPC: B65D88/14
Filed: 1990-10-19
Abstract: The air freight container made of light metal is in the form of a stable hollow container (15) made of hollow sections (1-10a) with connecting flanges and light metal plates (14) bolted to the connecting flanges and fishplates (23) joined at the corners to the outsides of the plates (14). The connecting flanges for the container roof have solid horizontally flush arms. All of the connecting flanges apart from those for the roof, are in the form of hollow flanges. The bolts are preferably rivets (18) with heads (20) in the cavity of the hollow flanges (16). USE/ADVANTAGE - The lightweight, strong air freight container has maximum storage capacity and is automatically produced.
Patent DE-4033430-A1 (DE)
Title: Solder coating of conductor pattern for attaching TAB-assembled device - consists of placing foil of flux material with a solder pattern on top, over substrate pattern
Inventor: CONIGLIO ALDO
IPC: H05K3/34
Filed: 1990-10-20
Abstract: A solder based layer is applied to a conductor pattern (3) on a substrate (1,6) by placing a foil (4) made of the flux with the conductor pattern (5) in solder already formed on top of it with the solder layer uppermost. The solder is pref. applied to the foil as a paste, pref. by screen printing or tampon application. The oil is then pref. placed on a glass substrate carrying a conductor pattern which is part of a liquid crystal display or on a PCB with a conductor pattern formed by wet chemistry. The solder pattern can be applied to the entire surface area of the flux foil or as a pattern. The connectors of TAB assembled devices are then bonded with the conductor pattern by application of pressure and heat. USE/ADVANTAGE - The process ensures reliable solder layers are applied to a conductor pattern in a way which ensures reliable electrical connections to IC's. The process is used in applications where solder plating must be avoided. The process is suitable for mass prodn. and is used e.g, for the mfr. of LCD's integrated with IC's.
Patent DE-4037046-A1 (DE)
Title: Prepn. of ash free anticorrosion agent for mineral, esp. two=stroke engine oil - by condensing alkylbenzene sulphonic acid with para-formaldehyde, long chain amine and short chain amine, in two stages
Inventor: OEHLER RALF
IPC: C07C309/73
Filed: 1990-11-19
Abstract: In prepn. of an ash-free anti-corrosion agent for mineral oils, esp. for 2-stroke engine oils with pre-mix components, alkylbenzene sulphonic acid mixts. with oil-insol. structure and 1-2 2-32C alkyl gps. are condensed in a 2-stage process with prim. or sec. 16-22C amines in the 1st stage, and with 4-12C amines and HCHO, as paraformaldehyde in the 2nd stage, to an oil-soluble prod. In the 1st stage, 0.4-1.2 mols of HCHO as paraformaldehyde, w.r.t. 1 mol of SO3H, 0.001-0.03 wt% of a foam suppressant, and 0.2-0.8 mols of molten fatty amine w.r.t. mol. SO3H at 60-110 deg.C, are added to the whole amt. of the alkylbenzene sulphonic acid in a reactor, with cooling. After a post-reaction of up to 30 mins., the mixt. is cooled to 70 deg.C and the remainder HCHO, up to 1.8 mols w.r.t. 1 mol SO3H, is added, as paraformaldehyde, and 0.6-1.2 mols of short-chain amine w.r.t. 1 mol SO3H, at 70-110 deg.C, with cooling. The mixt. is heated to 120-130 deg.C and after 30 mins. the water of reaction is removed by N2 stripping. ADVANTAGE - The agent has high polarity, and is used in low concn.
Patent DE-4039311-A1 (DE)
Title: System for smoothing sheet against printing press cylinder - uses air nozzle with ends offset from middle part
Inventor: BERGMEIER DIETER
IPC: B41F21/10
Filed: 1990-12-10
Abstract: The system smooths a sheet against the cylinder of a rotary printing press before the printing gap, using an air blast nozzle extending for most of the cylinder width. This is situated before and clear of the gap and aimed at the cylinder surface, being swung to and fro on a parallel axis in synchronism with the press. The ends of the nozzle (8) are offset from the middle part in the travel direction of the sheet, so as to smooth the sheet from the leading to the trailing edge, and from its middle towards both outside edges. ADVANTAGE - Maximum protection against crinkling and smearing.
Patent DE-4040956-A1 (DE)
Title: Nut plate and fastener for motor vehicle - is movable and has two threaded bores
Inventor: ENNING NORBERT DIPL ING
IPC: B62D27/00
Filed: 1990-12-20
Abstract: The nut plate and fastener is for the body wall of a motor vehicle, esp. a support. The plate has a threaded bore for a fastening screw; a fastening device inside the support, for secure holding of the plate; and a bore through the support wall, to insert the fastening screw. The plate (6) has two or more threaded bores (9,10). It is adjustably held, so that a bore can be moved under a bore (11) in the body wall (1). ADVANTAGE - The plate does not have to be replaced, if a thread is damaged.
Patent DE-4101056-A1 (DE)
Title: Paint spray plant - has spray mist collection trough with guide panels, and second trough
IPC: B05B14/46
Filed: 1991-01-16
Abstract: The paint spray plant, resp. manual spray stand, has a colelction trough with water-moistened sides to collect paint spray mist, and an outlet slot in the base; a water trough; and an air filter chamber. The outlet slot (2) has extended guide panels (3) to collect, and divert the paint spray mist (4) into the water trough (5). There is a second trough (12,13) with a similar slot (9), below the air filter chamber (6). The water-enriched spray mist is sprayed upwards through that slot, and falls back due to gravity.
Patent DE-4104707-A1 (DE)
Title: Forming of collar on end of thin walled tube - by upsetting end of tube by applying gradually increasing force
Inventor: BRUECK BRUNO JAKOB
IPC: B21K21/12
Filed: 1991-02-15
Abstract: A collar is formed on the end of a steel tube (1) by an upsetting process. The tube has an initial additional length to provide sufficient material to form the collar. The tube is supported internally by a close fitting tool. The tube end is then subjected to an axial force by a second tool which presses the material of the tube against the rounded shoulder of a third tool. The axial force is increased in stages, causing a gradual reduction in length and a corresponding increase in diameter of the end position of the tube until a collar of the required dimensions is formed. USE/ADVANTAGE - Forming of collars on tubes by upsetting. The process is applicable to thin-walled tubes.
Patent DE-4116076-A1 (DE)
Title: IC engine ignition device - has electronic switch coupled directly to plug connector pins
Inventor: TARUYA MASAAKI
IPC: F02P15/00
Filed: 1991-05-16
Abstract: The ignition device has a housing (101), containing an electronic switch (102), e.g. a power transistor, directly coupled to the pins (104) of a connector plug (103) integral with the housing (101). Pref. the housing (101) and the connector plug (103) are formed as a resin block within which the electronic switch (102) and the connector pins (104) are embedded. ADVANTAGE - Reduced mfg. cost.
Patent DE-4116366-A1 (DE)
Title: New thermoplastic partly crystalline aromatic copolyimide and prepolymer - prepd. from bis:amino-phenoxy benzene, oxy-bis:phthalic and other anhydride
Inventor: WOLF PETER DR
IPC: C08G73/10
Filed: 1991-05-18
Abstract: Partly crystalline, aromatic polyimide of formula (I) and its prepolymers is new. Ar = divalent residue of an aromatic diamine; provided that upto 60 mol.% units (II) are replaced, by a residue from those of formulae (III)-(V) and at least 60 mol.% units are of formula (VI). USE/ADVANTAGE - The polymers have good heat resistance and have a melt temp. of below 400 deg.C as well as high melt stability. They are also recrystallisable. They can be used as structural adhesives with high solvent resistance.
Patent DE-4117933-A1 (DE)
Title: Gas turbine unit for hypersonic aircraft - has axial compressor and blower replaced by tangential blower
Inventor: KASTENS KARL DIPL ING
IPC: F02K7/16
Filed: 1991-05-31
Abstract: The turbo-drive unit (1) involves thrust prodn. units (3) and gas outlet channels (16). A basic drive unit (2) has a front-sided ring-shaped combustion device (4), followed by a drum turbine (5) with connected running roller (6), and inner counterflow channels (8). A first outlet mass flows through a counterflow channel (8) and is heated in the combustion device (4). It then flows into the drum turbine (5) connected to the running roller (6) by a connecting plate carrying the main bearing. A tongue in the counterflow channel divides the input mass into first and second inlet masses, and first and second outlet masses. USE/ADVANTAGE - To reduce noise levels in supersonic aircraft turbo-drive units.
Patent DE-4120832-A1 (DE)
Title: Easily loaded transport device with base connected to sidewalls - includes at least one sidewall swivelling around corner upright
Inventor: CORDES WERNER
IPC: B60P7/06
Filed: 1991-06-24
Abstract: The corner uprights (5,6) are mounted in the corner areas (7,8) away from the back wall (2). The side wall (3,4) can be mounted in a swivelled-up state allowing side access in the area of the front plane (34) extending parallel to the back wall (2). Where both side walls each swivel about a corner upright they can cover each other in the area of the front plane (34). Each side wall pref. comprises a main area and an upper cover area separated from each other by a vertical cross bar extending perpendicularly. USE/ADVANTAGE - The device can be loaded sideways from a conveyor.
Patent DE-4121701-A1 (DE)
Title: Oscillatory nozzle coupler for ultrasonic excitation of currents in contact fluid - has strongly vibrated layer of outlet apertures on one side and vibrated layer of inlet apertures on other
Inventor: HOLLE HANS-JOACHIM
IPC: B08B3/12
Filed: 1991-07-02
Abstract: The coupler is of layered sandwich construction with a strongly vibrated layer of outlet apertures on one side and a weakly vibrated layer of inlet apertures on the other. The contact fluid is forced through the coupler to produce the desired currents.  The layers are made of the same material. ADVANTAGE - Improved cleaning action.
Patent DE-4125173-A1 (DE)
Title: Shaft slide injection nozzle for piston engine - has helically arranged injection nozzle on slide, for pre- and sequence injection
Inventor: GRIGAR OTTO
IPC: F02M61/04
Filed: 1991-07-30
Abstract: The injection nozzle is for fuel processing and combination of mineral and biological materials, for piston engines with compression ignition. It has a slide in the nozzle body, turnably held in an axial bearing, and loaded by a return spring in closing direction. The slide consists of a turbo drive of helical channels. Turbo drive (2), piston (3), and slide (7) with internal conduits (4,a), form a positive, removable assembly. There are a stepped pressure ring (6) with seal guide (3) overload valve (6a) on the intake side; and a stepped nozzle body (9) with slide on the other side. The slide carries a helical row (9b) of pre- and subsequent injection nozzles (8,a). A distance tube (14) contains return spring, axial bearing, and removable injection pressure disc (13). ADVANTAGE - Suitable for continuous and intermittent operation, economical advantages.
Patent DE-4128537-A1 (DE)
Inventor: RODI ANTON
IPC: B41F7/26
Filed: 1991-08-28
Abstract: The invention relates to a method for setting a production run ink zone profile of an offset printing machine. Firstly, an ink zone profile is set which is inverted relative to the desired ink zone profile and said inverted ink zone profile is then matched to the actually desired ink zone profile.