baber/WOPTO huggingface dataset:
Patent DE-4018219-A1 (DE)
Title: Microwave filter with coaxial resonator - has metallised face on dielectric for coupling two resonators, separated by outer wall(s)
Inventor: GOERTZ FRANZ-JOSEF DIPL ING
IPC: H01P1/202
Filed: 1990-06-07
Abstract: The coaxial resonators are partly filled with dielectric round their inner conductors. For coupling between two coaxial resonators (1,2), separated by their outer wall (126), the dielectric (14,24) is provided with a metallised surface (17,27) on each coaxial resonator. The metallised surfaces are interconnected by a conductor (30), passed through an opening (31) in the outer wall. Pref. between the dielectric and the outer wall is an air gap. For equalising the coupling, one or several tuning screws protrude into the coaxial resonators, taking part in the coupling, via the metallised surfaces. ADVANTAGE - Lightweight and compact design with easy tuning.
Patent DE-4019807-A1 (DE)
Title: Mechanical injection pump control for IC engine - uses EM motor to adjust linkage setting w.r.t. engine working parameters
Inventor: PANTEN DETLEF DIPL ING
IPC: F02D41/10
Filed: 1990-06-21
Abstract: The turbocharged engine has a mechanical linkage to set the fuel injection rate. A flyweight controlled linkage regulates the injection w.r.t. engine speed while the throttle linkage adjusts for throttle setting. Other engine parameters, e.g. temp. are added via an e.m. unit (20) mounted into one end of the linkage. The correction unit is driven by a processor control (21) and enables the fuel injection to be accurately controlled when the engine is accelerated. It provides additional torque despite the reaction time of the turbo. The control unit also regulates the injection rate w.r.t. exhaust emission sensor, torque monitor and pressures in the inlet and outlet manifolds. ADVANTAGE - Improved engine control using simple mechanical linkage.s
Patent DE-4021686-A1 (DE)
Title: Continuously variable hydrostatic and mechanical drive unit - has hydrostatic delivery vol. set to min. when starting up, and when running has two mechanical drives coupled to output shaft
Inventor: NIKOLAUS HEINRICH PROF DR
IPC: F16H61/20
Filed: 1990-07-07
Abstract: The continuously variable drive unit (1), espl for tractors, has parallel hydrostatic and mechanical drives (4,5).  The two drives are coupled by planetary gearing, such that at max. fluid delivery of the hydrostatic drive, the hydrostatic and mechanical drive shaft (16,23) speeds sum to give a coupling output shaft (56) speed of zero. When starting up the drive unit, the hydrostatic drive delivery vol. is set to a min.  Once running, coupling devices (K1,KR) for two speed ranges are connected to the output shaft (56). USE/ADVANTAGE - Low starting resistance and inadvertent movement of the vehicle prevented when idling.
Patent DE-4022871-A1 (DE)
Title: Continuous casting material guide
Inventor: SCHERTLER ARMIN DIPL ING
IPC: B22D11/128
Filed: 1990-07-18
Abstract: In the material guide for a continuous casting assembly, a rotating bush (43) with a screw-shaped support surface (45) is in series between the stand sections (7,9) at each support (26) and counter support (27), where a buttress (44) supports a stand section (9). The buttress is pref. a bush (44) with a screw-shaped supporting surface (46), which cannot rotate, where its support surface (46) lies on the support surface (45) of the rotating bush (43). The assembly (26,27,43,44) is centrally against the tie rod of the opposite stand section. The stand sections (7,9) in plan, are rectangular frames with a tie rod in each corner. The tie rod is a pressure cylinder assembly, where the cylinder is anchored to one stand section (7,9) and the piston is linked to the opposite stand section. The piston rod passes through the support (26) and counter support (27) units. A guide system is at one stand section (7), to take the other section (9) at the side, at right angles to the sliding direction while allowing the sections (7,9) to swing in relation to each other round an axis parallel to the rollers, etc. AVANTAGE The gaps between the strip guide rollers can be adjusted easily to give practically an infinitely variable roller gap, which gives easy maintenance requiring little repair. @(17pp Dwg.No.4/13)@
Patent DE-4027566-A1 (DE)
Title: Coin magazine with movable carrier plate -  receives coins via passage along angled guide track suitable for computer or spring force control
Inventor: MUENDEL BERND
IPC: G07F9/06
Filed: 1990-08-31
Abstract: The coin magazine has a cup shaped cylinder (6) with a support plate (2) on a rod (4) that is moved to maintain a constant distance (a) from the open end to the top coin of the stack (3).  The coins have a diameter that is less than the internal diameter by an amount that allows the coins to fall cleanly onto the stack. Coins are entered into the cylinder via an angled guide (5).  The angle is set to provide consistent motion along the guide. ADVANTAGE - Provides reliable entry into magazine.
Patent DE-4029066-A1 (DE)
Title: Aluminium oxide body with dispersed zirconium oxide particles -  has improved fracture, corrosion and wear resistance by adding yttrium oxide to stabilise zirconium oxide
Inventor: RECKZIEGEL ARNO DR
IPC: C04B35/119
Filed: 1990-09-13
Abstract: Ceramic bodies are made up of Al2O3 matrix with 3-12 vol.% stabilised ZrO2 particles of grain size below 4 microns in predominantly a cubic modification. The body has an intercrystalline phase which is resistant to acid and/or alkali attack. To stabilise the ZrO2, 0.4-1.7 wt.% Y2O3 is added. This also acts to increase the corrosion resistance. ADVANTAGE - At 20-300 deg. C, the body has a fracture strength of 400-450 MPa. It's wear resistance is 3-10 times higher than traditional Al2O3 bodies. After testing for 1 week in boiling H2SO4, no grain boundary corrosion was observed. After testing for 1 week in NaOH, no grain boundary corrosion was observed.
Patent DE-4035157-A1 (DE)
Title: Ladder for use on uneven surfaces - has ladder feet of adjustable length type, provided with elastic covering
Inventor: ERKELENZ THOMAS
IPC: E06C7/44
Filed: 1990-11-06
Abstract: At least one of the feet of the ladder, below the lowest rung, is adjustable in length, the adjustment being either telescopic and spring assisted or a simple sliding extension. The feet of the ladder have an elastic covering to accommodate localised unevenness in the footing. ADVANTAGE - Allows use of ladder directly on uneven surfaces.
Patent DE-4041675-A1 (DE)
Title: Mechanical system for inserting objects vertically into guide path - uses tray holding objects to bring same vertically up to guide path entrance
IPC: A61M5/00
Filed: 1990-12-22
Abstract: When introducing oblong objects (16) in a vertical position into a guide path (11) which has a longitudinal slit (14) adjoined each side by wall members (12, 13), the objects (16) which are held suspended inside a tray (23) in sockets which are spaced from each other along parallel rows are brough up close to the beginning of the guide path by moving up the entire tray (23). The protruding projections (18) of the objects (16) located in a row in the tray (23) are exposed and the tray is moved with this row of objects in the direction of the slit (14) in the guide path (11) so that the objects of this row enter the slit. Through vertical relative movement between the tray and guide path the objects in the slit are set down with their protruding projections on the top side (15) of the guide path and moved out of the sockets of the tray (23). ADVANTAGE - The objects, e.g. sterilized bottles can be moved mechanically untouched by hand thereby avoiding contamination.
Patent DE-4041726-A1 (DE)
Title: Production method for detachable belt connection - consists of sprung steel clasps in which holes are punched, and with rod inserted into them
Inventor: FUNKE BERND
IPC: A44B11/00
Filed: 1990-12-24
Abstract: The method of producing a detachable connection for the ends of belts (3), by means of sprung-steel clasps (1) extending the whole width of the belt-ends, consists of stamping out holes in the sprung steel clasps (1), and fitting the clasp hooks (5) into the holes. The alternately facing holes fit into each other like teeth for the detachable connection by means of a connecting-rod inserted into the holes. The holes for the sprung steel clasp hooks are punched out mechanically with a standard hole-template. ADVANTAGE - Tensile forces are transferred to the whole width of the belt by a durable belt connection.
Patent DE-4042144-A1 (DE)
Title: Prepn. of finely divided silica from alkali-silicate soln. - by neutralisation with acid and treatment with poly-di:methyl-di:allyl-ammonium salts
Inventor: COTTA FRITZ DR RER NAT
IPC: C01B33/193
Filed: 1990-12-28
Abstract: Prepn. of finely divided silica comprises reaction of an alkali silicate soln. with acid or acid-type reagents with mixing by stirring and action of high sheer strengths, circumverting a coherent hydrogel structure. The alkali silicate soln, is successively (a) neutralised and (b) treated with solns. of tensioactive poly-dimethyldiallyl ammonium polymers (I), at the point at which the viscosity of the sol phase is 10-15 mPa/s and prior to reaching an electrolyte concn. of 0.3N. The concn. of the (I) soln. is such that coagulation takes place below the critical micelle-forming concn. of (I). USE/ADVANTAGE - The finely divided silica is an active filler for polymer work-up, a thickener and thixotropic agent for various systems, a carrier for biologically active materials, an extender for dispersion paints and a mobile solvent for bulk materi
Patent DE-4109196-A1 (DE)
Inventor: BRUCH HELMUT DIPL ING
IPC: G02B6/38
Filed: 1991-03-18
Abstract: The invention discloses a device for coupling optical waveguides in which groups of optical waveguides which pass along centering grooves are moved translationally relative to each other and which has stopping faces for limiting a switching movement which do not need to be adjusted during manufacture of the device. To this end, the device contains two silicon discs (1, 2, 37, 38) which can move relative to each other and which have projections and/or recesses (3, 4; 55), whose boundary surfaces (23, 24, 25; 58, 59) serve to align the silicon discs (1, 2, 37, 38) relative to each other and as stopping faces for limiting a switching movement. The invention can be used advantageously in all optical switches which have mobile switching parts.
Patent DE-4111221-A1 (DE)
Title: Sewing machine - has equipment attached to feed and sense the tension and speed of elasticated banding when being sewn into position
Inventor: LIENEMANN ERNST
IPC: D05B35/06
Filed: 1991-04-08
Abstract: A sewing machine has a feed system attached, to bring elasticated banding from a roll, into the stitch point. Tension of the banding is regulated by means of an electronic control module, to feed back signals from an electro-magnetic sensor device, indicating tension and speed. This is employed to regulate the speed of a feed motor. The equipment for feed regulation is contained within the housing (2) which is wide enough to accept the banding employed. It is bolted (3) to the top arm (1) of the machine. The roll of banding (5) is fed through a top guide roller (7) and between rollers (6, 11) driven from a motor (10) and gear (9). The band (4) is then tensioned around rollers (17. 21) on the angular arms (19. 22) hinged at the centre (17). Also on this centre are two plates, designed to cover separate light sources for two photo electric sensors fixed in the housing, to indicate the position of the angular arm, and therefore the tension through the rollers. When more tension is required, the electro-magnet (26) pushes the armature (25), so that the arm (19, 21) moves to increase tension. When tension is too tight with the magnet switched off, the motor (10) is driven faster. The signals and controls are contained in an electronic module, which automatically switches the devices on and off, and may also be employed to control cutters and other implements, sense the feed of the banding, and indicate that the machine is sewing. There is also an indicator to give a measure of the tension at the stitch position. ADVANTAGE - The speed and tension of the banding is controlled in accordance with the speed of sewing. Other devices on the sewing machine are controlled at the same time.
Patent DE-4112540-A1 (DE)
Title: IC engine air intake mass flow rate measurement - using first order low-pass filter with variable filter factor dependent on rate of change of measured value and operating parameter of engine
Inventor: HOTZ UWE
IPC: F02D41/18
Filed: 1991-04-17
Abstract: A mass flowrate sensor is incorporated in the engine air intake pipe. The measured valve provided by the sensor is passed through a low-pass filter of the first order. The filter is supplied with a variable filter factor obtained from the absolute value of the measured value rate of change. The filter factor may be corrected by multiplying it with a correction value obtained from one of the ic engine operating parameters, e.g. the engine speed or the speed and the engine load. ADVANTAGE - Uses simplified digital signal processing circuit to provide exact result even during unsteady flow.
Patent DE-4113936-A1 (DE)
Title: Beam splitter for laser Doppler velocity measuring device - comprises optical cube displaced perpendicular to incident beam and rotated to determine partial beam intersection characteristics
Inventor: SCHULZ WOLFGANG DIPL PHYS DR I
IPC: G02B27/12
Filed: 1991-04-29
Abstract: The beam splitter uses an optical cube (2), onto which the incident laser beam (1) is directed at an angle of 45 deg. to one of its side faces. The cube is displaced perpendicular to the incident direction of the laser beam and is rotated to determine the point of intersection and the intersection angle of the two partial beams (1a, 1b). Pref. a glass plate (3) lies in the path of one of the partial beams (16) provided by the cube, with an adjustable angular position, ensuring the optimum overlap of the partial beams at the intersection point. ADVANTAGE - Provides measuring accuracy to within 0.1 per cent.
Patent DE-4120836-A1 (DE)
Inventor: DENECKE HANS
IPC: B05B12/04
Filed: 1991-06-24
Abstract: A device for coating an opening line (2) on a tin lid (1) with a material reducing the likelihood of corrosion in the region of the opening line (2) facilitates the coating of any shape of opening line by: a conveyor device for traversing the tin lid (1) in relation to a spray device (3); a spray device (3) wide enough to correspond at least to the maximum distance between two opening seam sections perpendicular to the direction of transport A and with a plurality of adjacent spray nozzles (4) which are individually controllable; and a control system which synchronises the spray nozzles (4) with the conveyor device so that they spray the material on the sections (21, 22, 23) of the opening line (2) passing by the spray nozzles (4) while the tin lid (1) is being transported.
Patent DE-4122239-A1 (DE)
Title: Electrical switch for holding grip for handicapped persons - is formed as adjustable split reed system with contacts encapsulated in grip or behind it and magnets in applied operating component
Inventor: KOSER MANFRED
IPC: A61G12/00
Filed: 1991-07-05
Abstract: The switch includes tubular operating rockers and magnets eccentrically fixed in a rotatable closure cap. A safety fold stirrup (1) works with a holding device (10), a protective cover (8) for a gas pressure damper and an electrical connection, together with a double key operating element. The operating element comprises a rapid holder (2), tube keys (3) and closure caps (4). The keys (3) have their own work direction (13, 23), as does the adjustment device of the operating element (12). Magnets are retained in the closure cap (4), and in the grip tube is inserted a contact holder with Reed contacts. USE - As aid for physically handicapped persons when using toilet, to operate electrically controlled flushing system.
Patent DE-4126689-A1 (DE)
Title: Modular parts supply system -  has separate storage and feed device and linear conveyor modules fitted to base frame
Inventor: STICHT WALTER
IPC: B23P19/00
Filed: 1991-08-13
Abstract: The supply system has a base frame for a linear conveyor (11) providing a feed path (17) for the items, with sorting and/or separation of the latter and a cooperating reception and/or feed device and a parts store (39). The storage and feed device (13) and the linear conveyor (11) are provided by respective modules which are interchangably fitted to the frame (4) via remote-controlled coupling devices. ADVANATAGE - Simple modification for different applications.
Patent DE-4127910-A1 (DE)
Title: Camera with zoom lens and fill-in flash unit - has microcomputer using two data tables for optimal focal lengths for various and set subject ranges
Inventor: KARASAWA TAKAYUKI
IPC: G03B7/16
Filed: 1991-08-23
Abstract: The f-value of the zoom lens changes in dependence on changes of focal length with fully open shutter. The focal length can be set to a desired value by an electromotor drive. A range finder (14), exposure meter (23), an electronic flash unit (30) and film speed sensor (29) are provided in the camera. A first data table (35) provides optimal focal lengths of the zoom lens according to various subject ranges. A second data table (36) provides optimal focal lengths according to certain subject ranges taking into account, and in dependence on, the effective range of the flash unit. A zoom focal length determining unit (37) sets the focal length according to the subject range. The first data table is selected when the exposure value is not below a set value, taking into account the brightness of the scene as measured by the exposure meter, the film speed and the f-value at a certain focal length and fully open shutter. The second table is selected when the exposure value is below the set value. ADVANTAGE - Focal length automatically matched to subject distance. Prevents underexposure by taking into account range of flash unit.
Patent DE-4135857-A1 (DE)
Title: Drive head for drilling unit - involves pinion rotated by drive motor acting on drive gearwheel via two free-running intermediate gearwheels, with drill connected to drive gearwheel
IPC: B23Q5/04
Filed: 1991-10-31
Abstract: The intermediate gearwheels (14,16) have a larger dia. than the pinion (12), and which corresponds approximately to the average of the dia. of the pinion and the dia. of the drive gearwheel (18), pref. approximately 65% of this average value. It is also possible for the intermediate gearwheels to have the same dia. as the pinion. The distance of the intermediate gearwheels in relation to the drive gearwheel is adjustable both in a peripheral direction and also radially. USE/ADVANTAGE - To obtain a satisfactory torque transmission from a drive head to a drilling unit.
Patent DE-4136327-A1 (DE)
Title: Agricultural machine with reaping or soil working tools fitted on pivot arm - has brush wheel fitted vertically over tools on outside of machine
IPC: A01D34/86
Filed: 1991-11-05
Abstract: The cleaning tool is fitted vertically above the tool (4) on the outside of the machine or pivot arm. It consists of a driven brush wheel (11) rotating around a vertical axis (A) or a brush roller rotating around a horizontal axis, the brushes (12) of which, at least on the outside of the tool (4), extend over the work area of the latter. The brush wheel (11) is arranged concentrically to a tool holder, directly on it or on the pivot arm (3). With an inclined disc as soil working tool on its tool holder, the brushes of the brush wheel are directed to be inclined parallel to the disc. A chain or belt drive is provided for the brush wheel. USE/ADVANTAGE - An agricultural machine which combines reaping and soil work operations with a cleaning and clearance process.
Patent DE-4141255-A1 (DE)
Title: Sepn. of iron@ and zinc@ impurities from hot galvanising pre- and post-treatment baths - by concentrating liq. by evaporation and separating iron-contg. crystals from the residue to be cleaned for further use
Inventor: HOFMANN ALEXANDER
IPC: C23G1/36
Filed: 1991-12-14
Abstract: To separate impurities from water and/or acid content baths, especially for ferrous and zinc from the pre- and post-treatment baths in a hot galvanising process for iron and steel components, the fluid is concentrated by evaporation. The evaporation rate is set so that the remaining material has a consistency with at least a high proportion of ferrous crystals which precipitate after removal from the evaporation stage and any cooling. They are separated and further cleaned for use as the purest possible recycled iron. The precipitated iron is separated mechanically from the remainder of the unevaporated residue, where the crystals are cleaned in water with an ion exchanger. A centrifuge is used to separate the ferrous crystals mechanically. Any viscous impurities clinging to the separated crystals are cleaned off by a solvent. ADVANTAGE - The method gives an increased volume of recovered material, with simple equipment and low energy consumption.
Patent DE-4207303-A1 (DE)
Title: Wrapping web arrester for pressed blank in press - has brake integrated in press to hold web in displacement path of press ram
Inventor: GOTTERBARM ULRICH
IPC: B65B13/18
Filed: 1992-03-07
Abstract: The brake unit is formed by a brake plate (32) adjustable in the direction of the wrapping web (21) against the force of a spring (38), and by a locally fixed pressure member (33) against which the brake plate can be pressed by a piston (35) which moves in a cylinder (34) when biased by a hydraulic  medium. The brake plate and/or pressure member can each have on the end sides, facing the wrapping web, one or more guide members such as interacting rails (39,40) between which the web is tensioned. ADVANTAGE - Simple design for secure web arresting without need for manual handling.
Patent DE-4215447-A1 (DE)
Title: Dust filter bag esp. for industrial suction cleaner - is bent into U=section with large-radius bends facilitating flow of air into lateral collection spaces
Inventor: SCHMIERER UWE
IPC: A47L9/14
Filed: 1992-05-11
Abstract: The bag is mfd. of air-permeable flexible paper-like material and supplied flat with a central opening (106) through a vacuum hose coupling (107). For insertion into the cleaner it is bent in two places (117,118) where stiffening material (119,120) is provided. The bends are of sufficient radius with the sides (115,116) parallel to each other so that air can flow through the gaps between the frontal and lateral spaces around the insert. ADVANTAGE - Dust capacity increased by rounded bends which do not prevent filling of lateral regions of bag.
Patent DE-4218725-A1 (DE)
Title: Prepn. of naphthionic acid used as dyestuff intermediate - by reacting naphthyl-amine and sulphuric acid, then reacting with sulphamic acid
Inventor: PIESCHEL FRIEDEMANN DR
IPC: C07C309/47
Filed: 1992-06-06
Abstract: Prepn. of 1-naphthylamine-4-sulphonic acid (I) is effected by reaction of 1 mole of 1-naphthylamine and 1-1.2 mole of 95-100% sulphuric acid to give naphtylaminehydrogen sulphate. This is subsequently reacted with 1-1.3 moel of finely crystalline of sulphamic acid having a particle size of 20-100 mmicrons at 160-200 deg. C. USE/ADVANTAGE - (I), (naphthionic acid) is an intermediate for dyestuffs. The process gives higher yields than the prior art. In an example, 33.5ml of 96% sulphuric acid and 71.5g of alpha-naphthylamine in flake form were mixed and gradually solidified. The reaction mixture was pulverised and mixed with 55g of sulphamic acid. It was heated to 170 deg. C giving a melt, which after 10 mins became turbulent. The temp. was riased to 180 deg. C producing a hard mass containing (I) 57.9%, 1-naphthylamine-2-sulphonic acid 0.4%, 1-napthylamine-5-sulphonic acid 0.1%, disulphonic acid 3.3% and alpha-naphthylamine 1.3%. Yield was 96% of theory.