baber/WOPTO huggingface dataset:
Patent DE-4004769-A1 (DE)
Title: Natural draught combustion system - includes bulging fuel basket which directs secondary hot air over combustion chamber in layers
Inventor: SZEPAN REINER DIPL PHYS
IPC: F23C7/02
Filed: 1990-02-15
Abstract: The combustion system maintains a natural flame lacking in harmful substances and keeps it at a controllable level. Heated secondary air warmed by the oven itself flows over the combustion chamber in layers, but pref. towards  higher flame zones. The form of the combustion chamber cover narrows towards the chimney, but is generally round. A heat exchanger (9) transfers heat to the secondary air and the curve of the fuel basket (3) forms the layered secondary air stream. USE/ADVANTAGE - Natural draught combustion system prevents the accumulation of soot and tar.
Patent DE-4007736-A1 (DE)
Title: Bedridden person lifting equipment - comprises frame of person's size with hook-clasp fasteners to lifting cloth
Inventor: BORMANN DIETRICH
IPC: A61G7/10
Filed: 1990-03-08
Abstract: The lifting equipment is for a bedridden person lying on a lifting cloth accessible from both sides. The cloth is secured to a supporting member which is lifted and lowered. This member consists of a frame (4) with external dimensions approx. corresponding to the person's size. Hook-clasp fastener strips (3, 7) are mounted on each lengthwise side of the frame, and also along the cloth edges, so as to secure the cloth (2) detachably to the frame. USE/ADVANTAGE - Easy attachment of lifting equipment for bedridden person even by the unskilled.
Patent DE-4008626-A1 (DE)
Title: Brickwork pointing tool head - has spring-loaded, hemispherical, smoothing tool sliding and tilting on nozzle tube
Inventor: MUELLER WOLFGANG DIPL ING
IPC: E04F21/165
Filed: 1990-03-17
Abstract: The tool head for pointing up brickwork and smoothing the applied mortar has a nozzle base (2) to which a nozzle tube (3) is connected and inserted in the joint gap. A hemispherical shoe (4) tilts on the tube, and also slides towards the base against spring (6) action, forming a smoothing tool. The shoe dia. can be between 2 and 2.5 times the width of the joint gap. ADVANTAGE - No escape of mortar from the joint, and smoothing simultaneously with application.
Patent DE-4008817-A1 (DE)
Inventor: ARGO ROBERT MELVILLE
IPC: H01K3/22
Filed: 1990-03-20
Abstract: An improved reflector lamp unit construction is disclosed employing a tungsten-halogen lamp (22) for the light source. The lamp component has a tungsten filament (32) suspended within the lamp envelope (24) by a combination of lead-in wires (34) joined outside of the lamp envelope to other wires (36) of larger diameter physically supported by the reflector member in a particular manner. A preferred lamp unit embodiment utilizes an aluminoscilicate glass composition to form the envelope portion of the tungsten-halogen lamp. <IMAGE>
Patent DE-4015941-A1 (DE)
Title: Increased contrast, auto visual controlled chip mounting - using fluorescent liquid on chip legs to enable camera to accurately control positioning of chips on high density circuit board
Inventor: FLIER GUSTAV
IPC: H05K3/30
Filed: 1990-05-18
Abstract: The method of accurately mounting components (5) onto a circuit board (7) uses the chip mounting machine (4) which picks up the chip (5) whose pins (2) are first dipped into a fluorescent liquid (6) before mounting. The component (5) is then placed onto the contact pads (1) of the board (7) where the liquid (8) on the pins (2) is spread out to an edge region (10) by the pads (1) such that the camera (3) sees a distinct contrast and can carry out accurate position control or correction. USE/ADVANTAGE - Enables pins to be accurately located onto contact pads of circuit board and their positioning to be controlled, checked and corrected by automatic camera. Damaged pins can also be detected and faulty chip replaced. Enables fully automated, fast and accurate mounting of chips, on high density circuit boards.
Patent DE-4020920-A1 (DE)
Title: Continuous preheating furnace allowing uniform heating - comprising section plates for holding workpieces which are transferred from loading station to transport device for plastic workpieces
Inventor: KABUS LORE
IPC: F27B9/38
Filed: 1990-06-30
Abstract: A continuous preheating furnace, esp. for heating plastics workpieces (13) such as glass fibre-reinforced polypropylene plates to the working temp., has section plates (7) which can hold one or more workpieces (13) and which are individually transferred from a loading station (14) to a transport device (16) within the furnace (1) and from the transport device to an unloading station (15).
Patent DE-4023825-A1 (DE)
Title: Power assisted steering system - has ball bearing to support gear wheel driven by servomotor
Inventor: SCHUSTEK SIEGFRIED DR ING DR
IPC: F16C19/55
Filed: 1990-07-27
Abstract: The power assisted steering system of a motor vehicle has a shaft (4) which has one end attached to the steering wheel (2). The other end (4) of the shaft has an integrally formed pinion (8) which meshes with the actuating rack (3). The manual effort applied to the steering wheel (2) is assisted by a servo-motor which drives a gear wheel (9) which can be connected to the shaft (4) by a friction clutch. The gear wheel (9) is supported on a ball bearing (14). The inner race of this bearing is formed by a groove in a bush (15) which also forms the outer race of the needle bearing which supports the shaft (4). The outer race of the ball bearing is formed by two rings with conical faces. These conical faces together with the groove in the bush (15) support each ball of the ball bearing on four points. USE/ADVANTAGE - Compact bearing for power assisted steering.
Patent DE-4029334-A1 (DE)
Inventor: DROTT PETER ING GRAD
IPC: B60T7/06
Filed: 1990-09-15
Abstract: The foot-pedal unit (1) described comprises an accelerator pedal (6), a brake pedal (7) and a clutch pedal (8), each of the three pedals (6, 7 and 8) actuating an associated electronally controlled device (potentiometers 9, 10; switch 11) and the pedal unit being pre-assembled and connected by means of electrical terminals to a power supply (2) and a data bus (4). The invention makes available an easy-to-assembly pedal unit which does not require holes in the pedal region of the vehicle bodywork. In addition, the pedal unit (1) satisfies the requirements of the modern manufacturing industry for, for instance, modular design and timely delivery.
Patent DE-4031662-A1 (DE)
Title: Direct memory access controller for data processor - has external interrupt facility for communication in burst mode
Inventor: YAMASAKI TAKASHI
IPC: G06F13/28
Filed: 1990-10-05
Abstract: The data processing system has a direct memory access, DMA, facility and contains a CPU (1), RAM memory (2), address output unit (3), bus access controller (11), 4 I/O units (12), security register (18) and the DMA controller (17). The DMA controller contains a transfer counter (9) and a request signal generator (10) that provides an input to the bus access controller (11) coupled to the CPU. The counter totalises the number of byte transfers and generates a carry after 255 counts. An external signal is used to trigger a timer (15) to isolate the I/O units (12) from the bus, while the CPU communicates in a burst mode of operation. ADVANTAGE - Improves effectiveness of CPU operation.
Patent DE-4034337-A1 (DE)
Inventor: SEELE RAINER DR
IPC: C07D521/00
Filed: 1990-10-29
Abstract: Azolylmethylspiro(2.5)octanols of the formula  (* CHEMICAL STRUCTURE *)  where A and R are each hydrogen or alkyl; D is alkyl, cycloalkyl, cycloalkenyl, biphenylyl, naphthyl, hetaryl or phenyl, it being possible for each of these radicals to be substituted; Z is CH2 or O, X is CH or N, and the plant-compatible acid addition salts and metal complexes thereof are used as or in fungicides.
Patent DE-4036803-A1 (DE)
Title: Pressing copper@ clad or laminates - surrounding each prepreg stack with soldered loop of copper@ wire to obtain cured laminate free from visual and thickness edge effects
Inventor: FASBENDER HELMUT DIPL CHEM DR
IPC: B29C70/34
Filed: 1990-11-19
Abstract: Laminated sheets, and copper-clad sheets in particular, are produced by hot pressing a number of prepreg layers impregnated with thermo-softened resin. Before being pressed the stack of prepreg receives a wire loop round it, the dia. of the wire used being at least the nominal thickness of the sheets. ADVANTAGE - The method produces laminates with more uniform thickness/closer tolerances than at present. (Dwg.1/4)
Patent DE-4039439-A1 (DE)
Title: Twin chamber hydraulic or pneumatic motor - makes use of permanent magnet to stabilise the valves
Inventor: VOGEL GUENTHER
IPC: B60T17/02
Filed: 1990-12-11
Abstract: The hydraulic or pneumatic motor has a housing enclosing two working chambers separated by a freely movable piston (5) mounted on the shaft (7) of a second piston (10). There are two valves controllable by the movement of the first piston. The two valves (22,23) are operable independently of each other as a result of pressure in one of the working chambers (20,21), with a permanent magnet (39) to stabilise the valve positions. USE/ADVANTAGE - Simple pressure medium motor which is insensitive to pressure fluctuations.
Patent DE-4041902-A1 (DE)
Title: Pyrolytic graphite-coated graphite clamp - used to hold starter wire for poly-silicon rod prod.
Inventor: GILBERT MICHAEL HENRY
IPC: C30B15/00
Filed: 1990-12-27
Abstract: A graphite clamp (10), for clamping an incandescent starter wire (14) used in polysilicon rod prodn. by pyrolytic decomposition of a gaseous silicon cpd. on the wire, has an external protective coating of pyrolytic graphite. Pref. the pyrolytic graphite coating is at least 2.5 (usually 13-75) microns thick to provide a barrier to H2. The coating is formed by decomposition of methanee, opt. diluted with inert diluent gas such as He, Ar or N2 in amt. 10-400 pts.vol.  diluent gas per pt. vol. of methane. USE/ADVANTAGE - The polysilicon rods are used as precursor for single crystal Si rods for the semiconductor industry. The clamp coating allows C-free polysilicon rods to be produced.
Patent DE-4101834-A1 (DE)
Title: Lock for circuit breaker - has protruding actuating toggle whose head is fitted with swivelling strap with stop between release and lock positions
Inventor: ZUELLIGHOFEN PAUL
IPC: H01H9/28
Filed: 1991-01-23
Abstract: An actuating toggle (4) protrudes from the circuit breaker (2) housing aperture (3). A head (5) is securable to the toggle by a scrwe, gripping over the toggle by a recess. The head is fitted with a strap (7) swivellable between a release and a locking position, limited by a stop. In the release position, it abuts the head parallel to the actuating toggle. It has locking claws, protruding against the breaker housing (9), which lie opposite stop faces (8), directly adjacent to the toggle in an acute angle, with the locking strap swivelled to one side in the locking position. The head has a locking bracket with a stop position, reacting with the housing stop in locking position. ADVANTAGE - Simple and reliable lock of compact design.
Patent DE-4102907-A1 (DE)
Inventor: ROSE DAVID DR
IPC: C07C217/84
Filed: 1991-01-31
Abstract: Bis-(2,5-diamino phenoxy)-oxaalkanes of formula (I) in which n = 2 or 3 and x is a whole number from 1 - 3 are suitable as developer compounds for the production of oxidation dyes, especially for the production of hair colorants. Very brilliant and uniform hair colorants with good colour-fastness are obtained with suitable coupling compounds, preferably from the group of resorcines, naphthols, aminophenols or hydroxypyridines.
Patent DE-4105452-A1 (DE)
Title: Machine expanding bags with folded sides and bottom - has outer mould with regions corresp. to position of formed bag with folded sides, and immersion spreader
Inventor: KUCKHERMANN GUSTAV
IPC: B31B160/20
Filed: 1991-02-21
Abstract: The machine preparing folded bags for filling, has an outer mould with at least individual areas, corresp. in position to the final shape of the bag (3). An expander (2) projects into the bag initially opened at the top edge so as to spread out the flat or partly opened areas. The expander has two shapers (6, 7), which swivel about at least one horizontal axis and are designed to press from inside against the side folds (8, 9). The horizontal swivel axis (12, 13) of the expander extends parallel to the bag side face. ADVANTAGE - Mechanical bag preparation for easy filling.
Patent DE-4110955-A1 (DE)
Title: Height adjustable vehicle seat - uses pivot mounting and rack segment at opposite ends of seat rail
Inventor: BEERBAUM PETER
IPC: B60N2/16
Filed: 1991-04-05
Abstract: The seat has a seat squab (2) and a backrest (3), with a pivot mounting (6) supporting the front edge of the squab, its rear edge locked at a required height to a curved rack segment (8). The pivot mounting (6) and the rack segment (8) are supported at the opposite ends of two spaced seat rails (5). Pref. the centre point (a) of the curved rack segment (8) lies behind the seat backrest (3), with a slit (9) exhibiting a similar curvature, receiving a guide pin (10) attached to the seat, the locking teeth (11) engaged by a spring-loaded latch. ADVANTAGE - Reduced weight and cost.
Patent DE-4112501-A1 (DE)
Title: Foam control in detergent compsns. - using low concns. of sulphonated unsatd. tri:glyceride(s)
Inventor: FABRY BERND DR
IPC: C11D3/00
Filed: 1991-04-17
Abstract: Prods. (I) obtd. by sulphonating unsatd. triglycerides of formula R10CH2-CH0R2-CH20R3 (II) are used for foam control in detergent compsns.in (II), R1 is 16-24C acyl contg. 1-5 double bonds; and R2 and R3 are 6-24C acyl contg. 0-5 double bonds. Compsns. for foam control pref. comprises (I) and at least one other foam inhibitor (II) selected from fatty acids and their alkali metal salts, paraffin oils, alkoxylated alkyl ethers and alkoxylated glycol monoethers. The (I):(II) wt. ratio is 10:90 to 90:10. The compsns. are added to detergents in an amt. of 0.1-5 wt.%. (I) is pref. a sulphonated rapeseed oil (SR0) deriv. from a rapeseed oil in which the triglycerides have an oleic acid content above 80 wt.%. ADVANTAGE - (I) suppress foaming in anionic surfactant solns. at low concns. over a broad temp. range. They have surface active properties, good water-solubility and good compatibility with other detergent ingredient
Patent DE-4119992-A1 (DE)
Title: Equipment for spraying pesticide - consists of tank and beam fitted with nozzles which can be fitted to any tractor
Inventor: DREYER HEINZ DIPL ING DR
IPC: A01M7/00
Filed: 1991-06-18
Abstract: The equipment is used for spraying a liquid, such as a pesticide, over fields. It consists of a tractor which either carries a tank for the herbicide or pulls a trailer which carries the tank (5). The tractor or trailer supports a beam (11) which is mounted transversely to the direction of travel and is fitted with nozzles spaced at intervals along its length. The nozzles are supplied with pesticide through a flow measuring device. The beam (11) is so designed that it can be quickly fitted to or removed from the tractor and together with the tank can be fitted to any agricultural tractor. USE/ADVANTAGE - Pesticide spraying equipment which is easily fitted to any agricultural tractor.
Patent DE-4124336-A1 (DE)
Inventor: BUSSE JUERGEN
IPC: B01F23/10
Filed: 1991-07-23
Abstract: When producing a cold gas stream under pressure by means of heat exchange and mixing a gaseous with a cold liquid component, a relatively long period of time elapses until the droplets of liquid have evaporated completely. Corresponding production devices using indirect heat exchange are therefore technically complex and expensive. To simplify this, production takes place in a device enabling direct heat exchange. The device comprises an isolated pressure vessel (1) in which a long tubular mixing section (3) is situated into which the two components are introduced. The cold gas emerging from the mouth of the mixing section is discharged from the pressure vessel via a connection (7). <IMAGE>
Patent DE-4126914-A1 (DE)
Title: Appts. for separating oil-in-water emulsions - comprising electrolysis cell, oil separator and circulating pump
Inventor: ROOB STEFFEN
IPC: B01D17/02
Filed: 1991-08-14
Abstract: Appts. for separating oil-in water emulsions, esp. drilling oil emulsions comprises: (a) an electrolyses cell (2) to discharge the emulsified oil drops at at least two opposite-poled electrodes (9,10); (b) an oil separator (3) to separate the oil phase of the oil-water mixt. continually leaving the cell (2); (c) a circulating pump (1) to continually recycle the oil-water mixt. into the cell. Pref. the outlet (4) of the oil-water mixt. to the oil separator is formed by an overflow at the cell (2) The electrodes (9,10) are horizontally arranged and have a sieve or lattice structure made of Ti-mesh. The cell (2) is filled with the retentate of an ultrafiltration appts. to separate the oil-in-water emulsions. ADVANTAGE - Sepn. is effective - the oil slurry produced is free from water and the water phase free from visible oil components. any remaining waste is reduced compared to prior art methods.
Patent DE-4127892-A1 (DE)
Title: Doppler sensor for microwave range and monolithic integration - has microwave transistor with nonlinear characteristic which is feedback coupled for self oscillating mode
Inventor: GUETTICH ULRICH DR ING
IPC: G01S7/03
Filed: 1991-08-22
Abstract: The Doppler sensor includes a self oscillating mixer, a microwave transistor (MWT) with a frequency stabilising stage (ZA), a feedback network (ZS) and an output interface network (ZD) for connection to a transmit/receive antenna (A). The circuit is produced in microstrip form suitable for monolithic integration based upon a GaAs or Si substrate. The high frequency Doppler transmitted signal (PD) is reflected back (Pi) from an object and is received by the antenna. ADVANTAGE - Economical microwave Doppler sensor.
Patent DE-4130357-A1 (DE)
Title: Active mixer circuit for HF signals - uses counter clock current control in series with active mixer.
Inventor: WEINZIERL FRANZ DIPL ING
IPC: H03D7/14
Filed: 1991-09-12
Abstract: The mixer circuit for HF signals uses a current-controlled active two or four quadrant mixer, the current control being  provided by a counter-clock circuit, pref. using a pnp and a npn transistor. Pref. the current control is connected in series with the active mixer, the latter using standard mixer IC's with an external node for the collector of the HF input transistor and an integrated npn control transistor which cooperates with an external pnp transistor to provide the counter-clock circuit. USES - For UHF timer.
Patent DE-4130481-A1 (DE)
Inventor: MOHN JUERGEN
IPC: B01D65/00
Filed: 1991-09-13
Abstract: An apparatus for filtering and separating flowing medium by reverse osmosis, ultrafiltration, and microfiltration. Disposed in a closed housing is an element stack comprised of disk-shaped spacers and filter elements, with a respective filter element being disposed between each two spacers, about which the flowing medium flows. The housing has a spherical configuration.
Patent DE-4130835-A1 (DE)
Title: Grinding machine - has wear resistant vessel lining forming removable insert
Inventor: FABIAN PETER DIPL ING
IPC: B02C17/16
Filed: 1991-09-17
Abstract: The grinding machine has a meal vessel, inside which is a body movable in relation ato it. The vessel has a wear-resistant lining on the inside. The lining consists of an insert, shaped to fit inside the vessel and removable from it. It can consist of a supporting body with perforated wall, fully embedded in plastic. The body can be of woven wire or perforated sheet-metal, and polyurethane can be used as the plastic. It can be permeable to vapour, while a vacuum is generated on the outside to hold it in place. ADVANTAGE - Improved lining life.
Patent DE-4131466-A1 (DE)
Title: Sealing insert for water outflow system - has through-flow piece with holes in it of different cross=sections and recesses, with water tight seal part and flange
Inventor: BELSAK RUDI
IPC: F16L55/24
Filed: 1991-09-21
Abstract: The seal-insert for controlling water-outflow is incorporated in the pressurised part of a water-pipe or water-fitment. A through-flow piece (2) has one or more holes (2a) of differing cross-section and recesses (2b) on the side of a conical power-supply section (3). A water-tight seal-part (1) enables the power-supply section (3) with the flange part (3a) to be firmly fixed to one side of the through-flow piece (2). ADVANTAGE - The dia. of the water-pipe is restricted by the combined seal.
Patent DE-4135610-A1 (DE)
Title: Agent for controlling cereal diseases transmitted in seeds - contains a maleimide deriv. and is esp. effective against helminthosporium gramineum in barley
IPC: A01N37/32
Filed: 1991-10-29
Abstract: An agent for the control of cereal diseases which are transmitted by seeds, esp. Helminthosporium granineum on barley contains a maleic acid imide deriv of formula (I) (where X = H or Br; R = H or Me). USE/ADVANTAGE - (I) are able to control the most important diseases of cereals which are transmitted in the seeds, without damaging the seeds or effecting germination (I), even in relatively low concns. are effective against Helminthosporium granineum or barley, a disease which is usually difficult to control. (I) are also effective against fusarium nivale, Tilletia tritici and Ustilago arciae. Suitable amts. for use are 1-80 (esp. 40-60) g/dt seeds.
Patent DE-4138353-A1 (DE)
Title: Diesel engine with crank case - has cover hood on cylinder head, with separate chambers for valve drive and injection valve, chambers being oil tight and closed by closure
Inventor: SPESSERT BRUNO DR
IPC: F02B3/06
Filed: 1991-11-21
Abstract: The cover (1) is deflection resistant, and covers the valve drive and the fuel injection valve, so as to be sound-absorbent. It has two chambers (2, 3), separated by an internal wall (12), the first chamber containing the drive, the second chamber, the valve. The first chamber is oil-tight relative to the second chamber and the exterior. The second chamber is closed to the cover and has an opening (4) for an injection pipe which is closed by an elastic closure. ADVANTAGE - Minimises noise emission from valve drive and injection valve.
Patent DE-4138957-A1 (DE)
Title: Vibration transporter conveying components - uses adjustable counter mass to balance drive fixable to machine frame
Inventor: KUMETH SIEGMUND DIPL ING
IPC: B65G27/30
Filed: 1991-11-27
Abstract: The drive unit carries the transporter duct (1) by one section (2), the counter mass being supported by the mounting. The drive between the two masses is by a solenoid etc. To balance the vibration the relative masses have to be adjusted. This is achieved by having the counter masses replaced without dismantling the drive. The masses (35) are accessed on one side of the drive. The counter mass can be assembled from a series of smaller masses to enable the drive to be tuned to a fine degree. The solenoid is driven with varying amplitude currents. At least one of the parts of the drive is made from lightweight material. ADVANTAGE - Simple to tune drive without dismantling drive unit.