baber/WOPTO huggingface dataset:
Patent DE-4007123-A1 (DE)
Title: Plasma treatment appts. - has working vessel with vacuum sealed vessel with evacuation of the intermediate zone
Inventor: STRAEMKE SIEGFRIED DIPL ING DR
IPC: C23C8/36
Filed: 1990-03-07
Abstract: The plasma treatment appts., to give a surface treatment to workpieces by the application of foreign atoms or coating, has a vessel (10) which is enclosed within a vacuum sealed outer vessel (18). The intermediate zone (19), between the two vessels (10,18), can be evacuated. The intermediate zone (19) pref. contains a heat suppression insulation (20), and is connected to a recirculation system (22) for convection insulation. The intermediate zone (19) can also contain an insulation against radiation, of slats which can be adjusted in relation to each other.
Patent DE-4012948-A1 (DE)
Inventor: BOEHME ANDREAS DR
IPC: B65H5/22
Filed: 1990-04-24
Abstract: Conveying tables for overlapping sheet transport between a feeding device and a printing machine are known, which work with suction air acting through suction bands. The underpressure created in a suction chamber must not, however, fasten, by suction, the printed sheet on the conveying table via spurious air flowing through side regions. 
<??>The suction bands 6 are let into the conveying table 3. At the side of the guide grooves 10, ventilation openings 11, 12 are provided, which are connected to the environment separately from the suction chamber. To this end, ventilation ducts are provided, which unite the ventilation openings 11, 12. The perforation in the suction band 6 can be made in the form of slots 14 which are arranged in a mutually offset manner and leave free support regions on the edge and in the centre 16 of the band. 
<??>Spurious air caused by band expansion is avoided. The printed sheets are held uniformly on both sides and guided across the conveying table without distortion. 
<IMAGE>
Patent DE-4022639-A1 (DE)
Inventor: SCHAEFER GERD
IPC: C02F1/00
Filed: 1990-07-17
Abstract: Apparatus for aerobic biological purification of waste water comprising a container (1) having an elongate body (2) which is subdivided into two chambers (4, 5) by a vertical wall (3). The chamber (4) is provided with a waste water feed (7) opening into a strainer basket (6), whereas the chamber (5) is equipped with a floating water outlet (13). In the apparatus, a discontinuous process is employed, according to which repeating process cycles (filling, aerating, settling, discharging water) are initiated periodically.
Patent DE-4024191-A1 (DE)
Title: Concrete oil-water sepn. container with end bulges - holding integral inlet and outlet bores respectively for raw and treated water
Inventor: ZAPF WERNER
IPC: B01D17/02
Filed: 1990-07-30
Abstract: A sunken upright cylindrical container (2) made of water-resistant concrete is used for sepn. either by gravity or coalescence of contaminating oil from waste water. Integrally formed in a bulge (8) projecting from the container end is an approach bore (36) for incoming water, which at the foot of the bone is diverted horizontally by an inclined slope (64) into the main container chamber where oil seperates into a surface layer. A corresponding outlet bore (38) is formed in an integral bulge (10) from the diametrically opposite container end; access to the outlet is controlled by a float valve 196). A coalescent sepn one or more multi-perforated intermediate flaw distributor floors (112) are instilled in the central container zone. or an insert (114) contg; coalescing material, air flowed through upwards . USE - Esp for filling stations, car washes, workshops, or industrial plant.
Patent DE-4028031-A1 (DE)
Inventor: BAUMGARTNER FRANZ DIPL CHEM
IPC: B01J2/00
Filed: 1990-09-04
Abstract: The invention relates to a process for coating granular mineral materials with synthetic resin. Minerals of this type, for example quartz sand, zircon sand, chrome ore sand, fireclay and corundum, are used in coated form in foundries as a moulding material (sand) for the production of shell moulds by the Croning process. The invention has the object of providing a hot-coating process which involves adding hot-liquid synthetic resin to the mineral material to be coated, but overcomes the disadvantages of the prior art by allowing rapid change of the synthetic resin types to be processed, allowing inherently reactive synthetic resins to be employed, and generally being more practicable and less complex. This object is achieved according to the invention in that the hot-liquid synthetic resin is only formed just before its addition to the mineral material, by melting solid synthetic resin.
Patent DE-4032505-A1 (DE)
Title: Use of dental filling compsn. with high filler content - to fix inlay, onlay or facing by high frequency vibration
Inventor: ROULET JEAN FRANCOIS PROF
IPC: A61C5/00
Filed: 1990-10-12
Abstract: Dental filling compsns. with a high filler content are used to fix inlays, onlays and facings by high-frequency vibration. The vibration frequency is pref. 200 Hz-1MHz (at least 10,000 Hz), and is applied by an ultrasonic appts., esp. with an intermediate layer between the appts. and the part to be attached. The filling compsn. contains (a) 60-95 (70-90) wt.% of inorganic filler,  (b) 4-39.99%(9-29.9%) of ethylenically unsatd. polymerisable monomers and/or polymers, (c) 0.01-3% (0.1-2%) of photoinitiators, and opt. (d) activators, initiators for a redox polymerisation, pigments, radiopaque additives and/or thixotropising agents.  (a) The average grain size of the filler is not above 5 microns, and the upper limit is 25 microns. Esp., the average size is 0.02-0.06 microns, and 65-85% of the grains havee average size of 1-5 microns. (b) The component is a (meth)acrylic ester of a mono-or poly-alcohol. ADVANTAGE - The compsns. are transparent, mechanically strong, and low-shrink. By using high-frequency vibration, the compsns.  are easy-flowing, give good wetting, and can be used in min. film thickness.
Patent DE-4033109-A1 (DE)
Title: Quick-fitting cover for electrical box - has corner pins, each with spiral external groove to allow it to twist-fit into hole with corresponding lugs on main part of box
Inventor: POHLMANN FRANZ F
IPC: H05K5/00
Filed: 1990-10-18
Abstract: A box to hold electrical or electronic gear has a cover with a quick action fitting on to the lower part; this action is provided by a closure pin and a corresponding hole in the lower part of the box, the pin being inserted by means of a spiral slot on its surface and a lug fitting into it. The hole for inseting the pin has at least one holding lug projecting from its inner face and moulded on to it. The gear is housed in the lower part (1) of the box and the cover (2) has the quick-action locking pins at its corners. Each pin (3) fits into a hole (4) and has a spiral groove (5) on its surface which allows it to be locked in position by at least one holding lug (6) which fits into the groove (5). The action is thus a bayonet type fitting and quickly locked or unlocked. It is best if two lugs are provided; each preferably has a trapezoidal cross-section (6a) and two lugs fit into two grooves (5). ADVANTAGE - The design of closure has no visible openings in the area of the insertion holes. No additional parts are needed. The product is designed to be moulded and the invention includes also the mould design.
Patent DE-4034697-A1 (DE)
Inventor: BENECKE WOLFGANG
IPC: B03C5/02
Filed: 1990-10-31
Abstract: The description relates to a process for manipulating microscopically small dielectric particles in which the particles are exposed to an electric field. In prior art processes the particles are exposed to non-uniform electric fields are polarised thereby. The polarised particles are moved towards higher field intensity. These processes do not permit the reversal of the direction of movement of the particles. The particles are enriched at the electrode and cannot therefore be held in free space. In the process of the invention the particles are exposed to one or more high-frequency fields moving in predeterminable directions whereby a force is exerted on the particles which puts them into a movement strongly asynchronous to the field. With the aid of a device for implementing the process of the invention it is possible very flexibly to manipulate particles. The particles can be moved by means of linearly or circularly arranged electrodes in any direction and through branched microstructures, they can be separated according to their dielectric properties and held contactlessly. The applications lie in the field of biotechnology and molecular separation, focussing and microtransport technology.
Patent DE-4036754-A1 (DE)
Title: Motor vehicle fuel pump unit - has hydraulic component gp. and electrical component gp. separately supported by end cover of housing
Inventor: NUSSER HERMANN
IPC: H02K11/026
Filed: 1990-11-17
Abstract: The fuel pump unit, for feeding the fuel from the fuel tank to the engine, comprises a tubular housing (22) enclosing the pump (24) and the electric drive motor (30) and fitted at each end with an end cover (32, 38), respectively incorporating an entry and exit opening for the fuel. The second end cover (38) directly supports the hydraulic component group, or the electrical component group, the other component group supported indirectly via an attached mounting element (46). The latter pref. fits in a seating provided by the housing and cover. ADVANTAGE - Simple assembly and testing.
Patent DE-4038573-A1 (DE)
Title: Automatic pruning machine for single-person operation - moves linearly or spirally up around trunk axis
Inventor: ELLSAESSER DIETRICH GERHARD
IPC: A01G23/095
Filed: 1990-12-04
Abstract: The automatic pruner with swivel axle arms can be moved linearly on the trunk axis and by swivelling the wheels the machine can move spirally upwards about the trunk axis whereby the vertically upward chain saw trims the branch at a distance from the trunk which can be adjusted. The wheels which during the pruning operation act as counter pressure rollers can be swivelled diagonally backwards for travel over the ground so that they carry out a supporting function for the travelling process. The machine can return to its linear travelling position through gravity. ADVANTAGE - Remote control to protect operator from injury.
Patent DE-4038687-A1 (DE)
Title: Bale breaker - has toothed rollers with separate lifters to clear fibres up to limit wall
Inventor: TEMBURG JOSEF
IPC: D01G7/04
Filed: 1990-12-05
Abstract: The bale breaker, to extract fibres from hard compressed bales of cotton or man-made fibres, etc. has toothed rollers which rotate in the same direction and can be raised separately from the upper surface of the bale. Pref. each toothed roller has its own lifter to disengage it from the upper surface of the bale, and the roller away from the wall is lifted clear. The roller lifting mechanism is pref. a pneumatic cylinder or a threaded spindle. The toothed rollers are powered together by a drive. The appts. can rotate round the centre axis of a fibre extraction roller, so that one toothed roller is brought away from the upper surface of the bale. The drive, such as a belt or chain, is fitted with a spring-loaded tensioner. ADVANTAGE - The appts. gives an even extn. from the upper fibre layer in a bale which is limited by a wall.
Patent DE-4041173-A1 (DE)
Inventor: FRISTAD WILLIAM DR
IPC: C07D521/00
Filed: 1990-12-21
Abstract: The invention relates to 1-mono and 1,3-bis[omega-(1-oxo-alkyl/aryl-amino)-alkyl]-imidazolium salts and their benzo analogues of general formulae (I) to (IV) in which R<1> is an R<3>-CONH-(CH2)n radical with n = 2 or 3, R<2> is hydrogen or a saturated, straight or branched-chain alkyl radical with 1 to 6 C atoms or an unsaturated, straight or branched chanin alkyl radical with 2 to 6 C atoms; R<3> is a saturated, straight or branched chain alkyl radical with 1 to 29 C atoms or an unsaturated, straight or branched chain alkyl radical with 2 to 29 C atoms or an aromatic radical with 6 to 18 C atoms, and in which X is an anionic counter-ion from the group formed by halides, sulphonates, sulphates, carbonates, phosphates or carboxylic acid anions with 1 to 30 C atoms, and their use as corrosion protection, antimicrobial and brightening agents.
Patent DE-4100219-A1 (DE)
IPC: A61B17/128
Filed: 1991-01-07
Abstract: Disclosed is a clip applicator (1) for placing and closing blood-vessel clips, etc. The applicator has two jaws (9, 10) which can be moved relative to each other about an axis of rotation (4), thus varying the angle between the jaws. Each jaw has an inwards-facing recess, the two recesses being designed to hold an open blood-vessel clip. Each of the applicator jaws (9, 10) is detachably connected to jaw mountings (7, 8) located behind the jaws and including the axis of rotation (4).
Patent DE-4100894-A1 (DE)
Title: Container such as tube with externally threaded neck - has membrane which is pierced by protuberance on screw closure piece
Inventor: SCHROEDER MICHAEL DIPL ING
IPC: B65D51/22
Filed: 1991-01-15
Abstract: The container (1), such as a tube, has an externally threaded neck (3), a perforated membrane (5) and a screw-closure-piece (4) with internal thread for screwing onto the externally threaded neck (3). The inside of the screw closure piece (4) has a perforation piece, such as a truncated one, pin or other protuberance (10). Between the externally threaded neck (3) and the screw closure piece (4) is a flexible catch or snap connection (8, 12). The screw thread (7, 9) of the screw closure piece (4) and externally threaded neck (3) is positioned so that, when screwed in one direction (13), the protuberance (10) pierces the membrane (5). ADVANTAGE - The membrane cannot be inadvertently pierced except by the person operating it.
Patent DE-4102728-A1 (DE)
Title: Switch appts. combination for electronic appts. - has main switch appts. with electronic information processing stage and load circuit switches
Inventor: SOLLEDER REINHARD DIPL ING
IPC: H02H3/33
Filed: 1991-01-30
Abstract: The switch appts. combination has a main switch appts. (2) with an electronic information processing stage (4) on the supply network side and an individual secondary switch appts.  (6) for each load circuit. Each secondary switch appts. has an associated electronic control device (9) for monitoring the switch release, which is coupled to the information processing stage (4) of the main switch appts. (2). Pref. the main switch appts. (2) uses a selective difference current protection switch, each auxiliary switch appts. (6) comprising a difference current protection switch, a fault current protection switch, or a combination of a network voltage dependent protection switch and an electronic protection switch. ADVANTAGE - Improved safety.
Patent DE-4102893-A1 (DE)
Title: Pulse width modulated three=phase current converter for washing machine motor - has transistors clocked by fundamental frequency of output voltage in half bridges with diodes in one half
Inventor: KLEIN HANS-WILHELM DIPL ING
IPC: H02M7/5395
Filed: 1991-01-31
Abstract: The converter of high clock frequency for driving a 3-phase asynchronous motor (M) contains transistors clocked by a defined fundamental frequency of the output voltage and with free-running diodes in the half bridges. Each half bridge has only one transistor (T1,T3,T5) clocked by the fundamental frequency during one half cycle and another (T2,T4,T6) on throughout the other half cycle with associated free-running diodes (D1-D3). USE/ADVANTAGE - For use with motor with short-circuit rotor for driving washing machine. Enables higher end speed and greater spread of speeds to be achieved at lower component cost.
Patent DE-4105334-A1 (DE)
Title: Cooling system for wire drawing drum - consists of helical passageway for circulation of cooling medium
Inventor: MEISCHNER ROLF
IPC: B21C1/14
Filed: 1991-02-18
Abstract: The drum of a wire drawing machine has an inner part (1) which is rigidly fastened to the outer part (2). The outer part has a helical groove (8) formed in the surface of its base so that a helical passageway is formed between the outer part and the outside surface of the inner part. This passageway is connected at each end to radial holes (13, 14) which are in turn connected to a chamber which is enclosed by an end plate. The passageways enable a cooling medium to be circulated through the drum to remove the heat from the wire as it is wound on to the drum. USE/ADVANTAGE - Cooling system for a wire drawing drum to produce high quality wire.
Patent DE-4105417-A1 (DE)
Title: Cop spindles - are held in housings with suction unit to take yarn at each housing to lead yarn to cross wound bobbin winder
Inventor: BROCKMANNS KARL-JOSEF DR ING
IPC: B65H67/08
Filed: 1991-02-21
Abstract: The combined spinner/winder assembly, with a set of wp spindles for the winder and a transfer mechanism to lay the yarn at the winder, has a set of housings (15) for the spindles (12) and cover them in the winding position. Each housing has a yarn take-off opening (20). A fixed suction unit (21), in front of the yarn take-off openings at the housings, is selectively placed under underpressure, with its outlet (27) directed at the cross winder. A gripper tube (28), leading to the underpressure source, is selectively coupled to the outlet opening of the suction unit and swung against the winder assembly. ADVANTAGE - The assembly gives a yarn laying action at the winder which is rapid, simple and reliable in operation, to take yarn from cops.
Patent DE-4108162-A1 (DE)
Title: Interchangeable silos with detachable frame - has reusable locks with angled sockets
Inventor: BOCK NORMANN
IPC: B65D88/30
Filed: 1991-03-14
Abstract: The foot frame is divided into a section (13) fixed to the silo body (9) and a section (18) connectable with the first section by lockable connectors having a bolt (15, 16) on one section associated with sockets (19, 20, 21) on the other. The sockets are pref. upwardly open semi-dishes set inclined by 45 deg. backwards. The section (18) on the foot side pref. has ballast tanks which can be easily filled and emptied. ADVANTAGE - Easy handling. As soon as the silo body stands upright the inclined semi-dishes prevent the bolts from sliding out.
Patent DE-4108830-A1 (DE)
Title: Groove turning tool - has bar-shaped insert with longitudinal serrations seated on two=part wedging clamp with matching serrations
IPC: B23B27/04
Filed: 1991-03-18
Abstract: The groove turning tool has a bar-shaped cutting insert (5) which is supported and clamped in the pocket (3) of the tool body by a two-part clamp (9, 11). The top side (17) of the upper trapezoidal-shaped part (11) of the clamp has longitudinal serrations which fit into matching serrations in the underside of the cutting insert. The lower triangular-shaped part (9) of the clamp has clamping screw (13) near the apex. The normal extending upwards from the mating surface of the two parts of the clamp is inclined towards the tool body by 5 to 30 deg. so that the upper part and insert and pressed against the floor of the pocket. ADVANTAGE - Can machine very narrow grooves.
Patent DE-4122844-A1 (DE)
Title: Balancing machine for motor vehicle wheels - contains retractable sensing element which measures distance of balance flame, with sensor angular position also measured
Inventor: DRECHSLER JOSEF
IPC: G01M1/32
Filed: 1991-07-10
Abstract: The balancing machine for motor vehicle wheels clamped to the main shaft of the machine contains a sensing device for distance measurement of the balance plane or planes and for detecting the balance radius. The sensing element has a retractable organ (10, 11, 17) in a common plane with the main shafts axis. The sensor provides electrical signals corresp. to the measured values to a device which evaluates the imbalance values measured during one or more measurement processes. The sensor has an angle measurement device (24) which measures the angular position of the sensing organ or its parts to determine the balance radius. ADVANTAGE - Ensures accurate position determination for each balance wt. on wheel rim.
Patent DE-4124641-A1 (DE)
Title: Heating and/or air conditioning system for car - has specified arrangement of two air ducts in space for driver's feet
Inventor: LEILICH MARTIN DIPL ING
IPC: B60H1/24
Filed: 1991-07-25
Abstract: The installation has a foot support (11) at the side of the pedals (12 13 14) for the left foot of the driver connected to a centrally arranged heating and air conditioning union (2) by a first duct (7) with floor space openings, and a second duct(8). The second duct serves the rear seat space (6) on the driver's side and continues down below into a cavity (10) of the foot support to which a duct(15) is connected. USE/ADVANTAGE - For car heating and/or air conditioning,with sufficient efficiency even in confined space.
Patent DE-4125227-A1 (DE)
Inventor: DORRA MICHAEL
IPC: H02H3/04
Filed: 1991-07-30
Abstract: The invention relates to an electrical circuit arrangement for monitoring a voltage supply for a data processing installation. As is known, overvoltages lead to corruption of the reliable data transmission, or overvoltage leads to destruction of components. Both are avoided by providing both an undervoltage simulation stage and an overvoltage and undervoltage switching stage, which monitor the voltage and do not release the data processing installation as a load unless the voltage is within a specific tolerance band. <IMAGE>
Patent DE-4125331-A1 (DE)
Inventor: KUEHNE NORBERT
IPC: C12N9/56
Filed: 1991-07-31
Abstract: The invention concerns a process for the filtration of an aqueous liquid through a porous membrane with a pore radius of between 1nm and 20  mu m using pressure differences of between 0.1 and 10 bar. The aim of the invention is to counter the decrease in the rate of flow which occurs. This is achieved by introducing into the liquid to be filtered a surfactant at a concentration of between 0.01 and 1 % by wt., which improves the rate of flow.
Patent DE-4127871-A1 (DE)
Title: Moulding tool and process for mfg. lip sealing rings - where different polymers are injected through separate nozzles and fuse together to form housing and lip components in single moulding
Inventor: PESCH KLAUS DIPL ING
IPC: B29C45/16
Filed: 1991-08-22
Abstract: A process and moulding tool to mfr. lip sealing rings for rotating and rising and falling shafts. The seal is mfd. by injection of different materials through separate nozzles, either simultaneously or one after the other. A thermoplastic polymer is used for the housing zone and a thermoplastic elastomer for the lip seal itself. Both materials integrate with each other at the joining line between them to form a secure bond. The moulding tool has a slide at the boundary between the housing and sealing components. Opening the slide either under injection pressure or by mechanical means allows both materials to flow into each other. USE/ADVANTAGE - The process and tool mfr. lip sealing rings for rotating and longitudinally moving shafts and are not limited to polymer combinations with similar interdiffusion characteristics to obtain a good bond between the two areas of the component
Patent DE-4134820-A1 (DE)
Title: Ultrasonic sensing system for control of agricultural tractor - has pair of sensor to monitor row of plants and to give guidance signals
Inventor: STEFFEN GERD E F DIPL ING
IPC: G05D1/02
Filed: 1991-10-22
Abstract: The ultrasonic sensing system is used to detect a line of plants and provides guidance for a tractor. Mounted on the tractor are a pair of sensors (51, 52) that are set apart by a distance to suit the width of the row of plants (11). The sensor outputs are processed by a logic unit (12) that indicates whether the tractor is centred over the row or is to the left or right. ADVANTAGE - Provides automatic measurement of alignment.