baber/WOPTO huggingface dataset:
Patent DE-4039334-A1 (DE)
Title: Two level light sensitive system with radiation de-polymerisable coat - with light sensitive top coat forming mask, giving resist with good contrast
Inventor: OSUCH CHRISTOPHER E
IPC: G03F7/095
Filed: 1990-12-10
Abstract: Light-sensitive object with 2 levels has (a) a substrate; (b) a radiation-depolymerisable coating; and (c) a light-sensitive top coat. Coating (b) contains a copolymer (I) of ca. 10-90 mole-% maleimide units, ca. 10-90 mole-% units of a styrene cpd., i.e. styrene, alpha-methylstyrene, 4-(1-5C alkyl)-styrene or 2,4-di-(1-5C alkyl)-styrene, or an (alkyl)acrylonitrile or alkyl (alkyl)acrylate monomer of the formula CH2=CRaM (Ra = H or 1-5C alkyl; M = CN or -CO2Rb; Rb = 1-5C alkyl); and 0-90 mole-% N-(1-5C alkyl)-maleimide units. (I) has a mol.wt. of ca.  5000-2000000. Coating (c) contains a water-insol. binder resin (II), which dissolves or swells in aq. alkali, in an amt. giving a homogeneous mixt. and enough light-sensitive component(s) (III) to impart photosensitivity, (III) being an o-quinone diazide or a combination of a cpd. forming a strong acid on exposure and a cpd. contg. acid-hydrolysable C-O-C linkage(s). The material may also have (d) a barrier layer between (b) and (c), to prevent these mixing. (d) pref. consists of a polysulphone polymer, PVA or glass. (I) has a mol.wt. of ca. 5000-100000, esp. 10000-90000. (II) is a novolak or polyvinyl phenol; and (III) a naphthoquinone-(1,2)-diazide-4- or -5-sulphonyl chloride condensed with a hydroxybenzophenone or hydroxyalkylphenol.  In particular, (II) is a cresol-HCHO novolak and (III) naphtho-quinone-(1,2)-diazide-4- or -5-sulphonyl chloride condensed with a trihydroxybenzophenone. Coating (c) may also contain a colourant, streaking inhibitor, plasticiser, adhesion promoter, accelerator, solvent, crosslinker and/or surfactant. The solvent pref. is propylene glycol monoalkyl ether acetate and/or propylene glycol monoalkyl ether. USE/ADVANTAGE - The photoresist gives good image contrast. It is useful Si, Al, polymer resin, (doped) SiO2, Si3N4, Ta, Cu, polysilocone, poly-Si, ceramics, Al/Cu mixts., GaAs and/or gp.  III/V cpd. substrates.
Patent DE-4040167-A1 (DE)
Title: Machine to cut plastic blocks with wires - uses sets of wires mounted taut on oscillating frames, and if it detects wire with flaw it automatically removes material and replaces frame
Inventor: WINZ RUDOLF
IPC: B26D7/22
Filed: 1990-12-15
Abstract: Blocks of plastic are cut up in a machine with a frame on which cutting wires are mounted taut and which is set into an oscillating motion, the blocks being pressed against them. During the cutting process the wires on the frame are examined for any flaws. If a flaw is detected the cutting process is automatically interrupted and the frame with faulty wire is replaced with a fresh frame and mounted wires. The machine can be mounted on a polymer-concrete block to damp down vibrations. - Pref. the blocks of e.g. polystyrene or polyurethane foam are fed in on rollers (15) by a feed device (2, 3) to a cutter (4) which provides four cuts. Each cut block next enters a vertical and horizontal cutter (5) where it is divided by oscillating wires and cut to length. It then comes to the station (6) for orientation and gauging in readiness for cutting (8). Its width and height are also measured (7).
Patent DE-4040170-A1 (DE)
Inventor: WEDDING BERTHOLD DR RER NAT
IPC: H04B10/67
Filed: 1990-12-15
Abstract: In a transmitter including a carrier source an input signal is present which contains the information to be transmitted and is composed of signal components having amplitudes less than a predetermined threshold value or equal to the threshold value and signal components whose amplitudes are less than the threshold value or equal to the threshold value. For the purpose of identification, the two signal components are sampled in different ways, for example at different frequencies and are combined into a modulation signal in such a manner that the two signal components have the same sign. In a receiver, a circuit arrangement is provided which identifies the sign of the partial signals on the basis of their different sampling frequencies, demodulates envelope curves and combines them into an output signal which corresponds to the signal. The transmitter and receiver are advantageously components of an analog optical transmission system. They prevent the clipping effect while simultaneously increasing the degree of modulation.
Patent DE-4100699-A1 (DE)
Inventor: GRONEMEYER MICHAEL DIPL ING
IPC: G06F11/27
Filed: 1991-01-11
Abstract: A number of input modules (OE1 to OE4) and output modules are provided for the computer-controlled input/output of messages and commands. These modules are selected via a first register (R1.1) by a computer system (R), the message in each case presented from the process being supplied to the computer system via a common data line (D1) or a command being output to the process. The potential present at the output of the first register (R1.1) is read back via a second register (R2.1) into the computer system which recognises from this the module to which the message present on the data line (D1) is to be allocated. In a test operation, the modules are sequentially switched on, off or on and off and the resultant status messages of the modules are read in by the computer system via a separate data line (DP1) and evaluated. The circuit is particularly suitable for relatively small computer-controlled systems in which the basic load of the computer is allowed to be relatively high for carrying out test routines but in which it is important to minimise the hardware expenditure. <IMAGE>
Patent DE-4101936-A1 (DE)
Title: Intravascular perfusion throttling device - consists of balloon with radially extending ribs
Inventor: FISCHER MATTHIAS DR MED
IPC: A61B17/12
Filed: 1991-01-21
Abstract: An intravascular perfusion throttling device consists of a balloon (1) with attached curved ribs (2) extending radially. These ribs have their outer ends attached to the wall of the blood vessel and hold the balloon in a central position so that the cross-sectional area of flow through the blood vessel is reduced. The ribs (2) are fastened to the two poles of the balloon and an eye (5) is attached to one of the poles to enable the device to be withdrawn after the completion of the treatment. USE/ADVANTAGE - Treatment of circulatory disorders. The device can be removed after completion of the treatment.
Patent DE-4102787-A1 (DE)
Title: Hydropneumatic car suspension with spring units - has parts of hydraulic fluid energised vibration, as compensation mass, w.r.t. sprung mass
Inventor: HARTL MATHIAS DIPL ING
IPC: B60G17/04
Filed: 1991-01-31
Abstract: Spring system for a vehicle having a hydropneumatic spring aggregate comprising a hydraulic displacement unit and a pneumatic spring accumulator arranged between the sprung mass (1) of the vehicle and the unsprung mass (2) of the axle. Part of the hydraulic medium which acts as a cancelling mass relative to the sprung mass can be stimulated to oscillations whose natural frequency coincides with a critical frequency of relative movements between the sprung and unsprung masses. ADVANTAGE - Spring system which can operate with increased damping effect in critical resonance regions.
Patent DE-4102833-A1 (DE)
Title: Gas turbine engine - has multiple compressors between pre-compressor and combustion chamber and mounted circumferentially
Inventor: STEINHARDT ERICH DR
IPC: F02C7/236
Filed: 1991-01-31
Abstract: The gas turbine engine has individual compressors (2), located on the circumference between a precompressor (1) and the combustion chamber (3). The compressors are driven by a turbine shaft (6) via a transmission. Each compressor has several stages. A heat exchanger for intermediate cooling of the working gas is located between the outlet of the precompressor, and the intakes of the individual compressors. ADVANTAGE - Allows high pressure ratios.
Patent DE-4105885-A1 (DE)
Title: Metal circuit board with circuit on insulating plate - has depressions formed in part of metal plate opposite to circuit
Inventor: KUROSAKI TOSHIO
IPC: H05K3/00
Filed: 1991-02-25
Abstract: The metal circuit board has the conductive circuit on a surface of an insulating plate forming a layer on a metal plate (1).  In portions of the latter are formed depressions set opposite to the conductive circuit (3). Each depression pref. has the same flat shape as the conductive circuit part in opposite configuration w.r.t. the depression.  The width of each depression is greater than that of the respective conductive circuit part in opposite position. The depression width prevents electric field concentration between the depression edges and the circuit part. ADVANTAGE - Min. stray capacity between circuit and metal plate, with good heat radiation.
Patent DE-4112319-A1 (DE)
Inventor: ZACHRES GEORG
IPC: A44B19/30
Filed: 1991-04-16
Abstract: The invention relates to a lockable slider for slide fasteners, in whose one side piece (12) a pin (18) or the like is mounted, which is displaceable perpendicular to the slider and is displaced by a spindle into its end positions according to Figure 4, the pin (18) extending into the slide fastener teeth in the one end position and releasing the teeth in the other end position. 
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Patent DE-4112454-A1 (DE)
Title: Assembly to separate dust from coal burner smoke gases - by concentrating dust particles in peripheral zone as they change direction using collectors, etc.
Inventor: KORITZ DIETER DR ING
IPC: F23J15/02
Filed: 1991-04-12
Abstract: In a process and assembly to separate dust from coal burner smoke gases, the novelty is that the dust particles are concd. in a peripheral zone as they change direction by means of a baffle collectors; that the particles impinge on the baffles at different heights and are selectively removed from the gas flow; that the smoke boundary layer flow is force-fed both before and or during the directional change. USE/ADVANTAGE - The arrangement and assembly separates dust particles from smoke gases. The arrangement enables a selection to be achieved of the particles to be separated by treating all or part of the smoke gases.
Patent DE-4115256-A1 (DE)
Title: Adjusting angle of grill reflectors in gas stove - involves pair of centrally hinged plates controlled by geared mechanism
Inventor: HA DAE JIN
IPC: A47J37/06
Filed: 1991-05-10
Abstract: The device for adjusting the angle of reflection of grill reflector plates on a gas cooker. It consists of a pair of reflector plates (10A,10B) pivotted at the top on a common hinge (11) and located in the upper part of the oven. There are two grill burners, one above and one below the grilling shelf. A transverse spindle (16) with two separate threaded sections (18,18A) and a central worm gear (17) connects the lower free moving parts of the reflectors (10A,10B) and a revolving gear (13) is held in holders (14) in each reflector (10A,10B) to engage in the threads (18,18A) of the spindle (16). An endless chain running around two sprockets and controlled by a knob drives a worm (22) in mesh with the worm gear (17) on the spindle (16) to open or close the reflectors (10A,10B). USE/ADVANTAGE - The precise desired angle of reflection of grill reflector plates can be achieved.
Patent DE-4117426-A1 (DE)
Title: Base for bath or shower tray - has cross bars joined by lengthwise bars, and two support feet, with flexible metal belt attached by height adjustments
IPC: A47K3/17
Filed: 1991-05-28
Abstract: The base for a bath or shower-tray has at least one cross-bar (1, 2) to which are fixed two support-feet (3) which are adjustable in height. The cross-bar(s) have at least one holder for the bottom of the bath-tray. The cross-bars are joined by at least one lengthwise bar (11) which has at least one support (12) adjustable in the middle between the two cross-bars. The holder has at least one flexible, metal belt (6) the free ends of which are adjusted in height by adjustments (9) and are attached to the middle of the cross-bar(s). At least part of the belt's surface facing the bath's bottom has self-adhesive strip (10). ADVANTAGE - The base for the bath or shower-tray is more easily assembled and consists of a flexible belt adaptable to any shape of bath-tray.
Patent DE-4118185-A1 (DE)
Inventor: SCHMIDT HELMUT PROF DR
IPC: C01G23/00
Filed: 1991-06-03
Abstract: Described is a method of producing a suspension containing oxide particles with diameters in the nanometer range. In this method, an aqueous phase containing, in dissolved form, an element which can be precipitated as an oxide or oxide hydrate is emulsified in an organic liquid to form a water-in-oil emulsion and the pH in the emulsified water droplets is then altered, thus causing the oxide to precipitate. The method is characterized in that a mixture of at least one non-ionic emulsifying agent with an HLB value less than 7 and at least one non-ionic emulsifying agent with an HLB value greater than 9 is used as the emulsifier.
Patent DE-4118225-A1 (DE)
Title: Dispensing device for cream - comprises box body and cover plate with at least one emission aperture, and all-round part locating on side wall of box body
Inventor: HORNTRICH GUENTER
IPC: B65D83/00
Filed: 1991-06-04
Abstract: The cover plate (2) is arched outwards and has a central hollow (10). The emission aperture (3) is formed outside the middle (12) of the hollow and the part of the cover plate evolves into an all-round sealing lip directed towards the base of the box body (5). The surface of the hollow is larger than the finger tip of a user. The side of the holow which in plan view is approximately circular and which is facing the user has a part (9) with a rougher structure. The cover plate in the area of the emission aperture has a smooth top surface. It is also possible to have two emission apertures which are symmetrically arranged in relation to the centre of the cover plate. USE/ADVANTAGE - For dispensing cream using a box body which permits complete issue of cream, using simple means.
Patent DE-4120151-A1 (DE)
Title: Tool insert for installing small components comprising cylindrical sleeve with piston - has socket to contain component and spring loaded piston with angled tip to hold component
Inventor: METZGER MANFRED DIPL ING
IPC: B25B23/10
Filed: 1991-06-19
Abstract: The tool insert (1) for the holding of small components (6) has, at the lower end, a socket (4) to contain the component. There is a central bore (2) through the length of the insert in which a spring (13)-loaded piston (5) can slide. The piston (5) is tapered (3) from a dia. slightly less than the inner dia. of the insert to a dia. at its lower end (7) just less than the inside dia. (10) of the component. The lower section is on an inclined axis so that its end (9) presses against the inner surface (22) of the component (6). The top end (11) of the piston (5) has a collar (15) which acts as a stop for the spring (13) and presses against the inner surface (23) of the bore (2). USE/ADVANTAGE - For power wrenches fitting nuts. Easy to use and has a strong holding potential.
Patent DE-4123982-A1 (DE)
Inventor: RISS UDO DR
IPC: H02K37/00
Filed: 1991-07-19
Abstract: In order to drive a stepping motor (1, 2) which can be driven in main steps and in intermediate steps within each main step, the motor (1, 2) is driven into a defined zero position for starting, using a phase current combination which corresponds to the defined position. Thereafter, a test is carried out via a reference switch (4, 5) which is arranged between the mutually moving motor parts (1, 2) to determine whether the motor (1, 2) is in the defined position. The defined position is reached when the reference switch (4, 5) triggers. If said switch does not trigger, the motor (1, 2) is driven so that it carries out a movement whose magnitude is equivalent to a plurality of main steps and is then once again driven with the abovementioned phase current combination. The reference switch (4, 5) is then interrogated again. This is repeated until the reference switch (4, 5) triggers and the defined position is hence reached. <IMAGE>
Patent DE-4124470-A1 (DE)
Inventor: WILLNAT HELMUT
IPC: H01R33/06
Filed: 1991-07-24
Abstract: The socket for a two-pin halogen lamp (10) having a base (13) which is constructed of insulating material comprises a contact plate (19) for transferring current to the lamp pins (17), in this case the contact plate (19), on which a spring (20) acts, loads the lamp pins (17) and holds them pressed against a stop surface (26), in this case the contact plate (19) when it is in the inserted position lies obliquely with respect to the bearing surface (26) so that an insertion ramp for the lamp pins is produced. <IMAGE>
Patent DE-4131816-A1 (DE)
Title: Contact system for encapsulated compressed gas power switches - has power switching stage coupled to isolating switching stage via contact fingers engaging blade connection, allowing some movement
Inventor: CHYLA THOMAS
IPC: H02B11/04
Filed: 1991-09-20
Abstract: The power switching stage (3) couples an isolating switch (2) and power switch (1). The switching stage comprises several overlying contact fingers (6) within a cage (5) that engage a blade contact (7). The cage is enclosed by a housing(4). The power switch may be moved in the horizontal direction (H) while the isolating switch is separated by movement in the vertical direction (V). The blade contact is fixed to the body of the main power switch to allow the power switch to be moved in the horizontal direction without contact separation occurring. USE/ADVANTAGE - Mid voltage switching gear. Easy access of switching stage.
Patent DE-4132659-A1 (DE)
Title: Vane-stabilised practice projectile for large calibre barrel weapon - has equal calibre central part supporting guide strip and connecting shaft part carrying vanes
Inventor: BECKER WILLI
IPC: F42B8/12
Filed: 1991-10-01
Abstract: A projectile point is accommodated on a pin which is connected to the central part via an equal calibre widened formation. The central and shaft parts comprise a single forged part which, at least up to a point side end of the guide strip, is formed as a full body. The part of the forged part between the guide strip and the pin has a recess and the forged part is of aluminium. USE/ADVANTAGE - A practice projectile for a large calibre barrel weapon, which is stabilised by vanes.
Patent DE-4134109-A1 (DE)
Title: Electrolytic soln. contg. vanadium ion pair prodn. for redox battery
Inventor: KANEKO HIROKO
IPC: C01G31/00
Filed: 1991-10-15
Abstract: In the prodn. of an electrolytic soln. for redox batteries, using V as one active material on both the cathode and anode, the novelty is that a redn. stage is carried out with a V cpd. (I) i.e. NH4VO3 or V2O5 in the presence of an inorganic acid (II) to dissolve (I).- Pref. conc. (II) and then (I) are added, pref. at least twice. Redn.is carried out in the presence of a reducing agent, pref. H2SO4, N2H4.2HCl, H2O2 or H2, or by electrolysis. (I) is reduced to V (III) or V (II) by electrolytic redn. and then (I) is added and reduced again to produce V (VI). In partic. V (III) is produced at the anode and V (V) at the cathode, then the V (V) is reduced to V (IV) with a reducing agent. The V is converted to a discharged tetravalent and trivalent pair, i.e. V(IV)/V(III), and a charged pentavalent and divalent pair i.e. V(V)/V(II)
Patent DE-4206398-A1 (DE)
Title: Fixing attachment holding switch housing to pipe - has trough and housing of insulating material snapping together around pipe, with locating peg in trough
Inventor: SCHULTE SIEGFRIED
IPC: H02B1/04
Filed: 1992-02-29
Abstract: An attachment for a pipe consists of a short trough and a mating switch housing which snap together to surround the pipe. Both components are made from electrically insulating material. The trough has at least one radially projecting peg which fits into an opening in the pipe for locating purposes. The snap-fitting rims of the switch housing are integral with the end wall of the housing. At the top and bottom ends of the trough, flexible tongues project crosswise to the snap-fitting edge to locate the housing correctly in the longitudinal direction. The trough and switch housing are detached by using an annular unlocking tool. ADVANTAGE - Insulated switch housing can be attached easily and detached without damage.
Patent DE-4207025-A1 (DE)
Title: Refuse baling press with automatic wrapping of bale - has wall opposite ram wall on slide with compartment for rolled up tubular net that wraps round bale as slide is pushed back at end of baling cycle
Inventor: KROHM REINOLD
IPC: B65B27/12
Filed: 1992-03-06
Abstract: The chamber (2) of the press has a sliding top cover (10) closing the filling opening (12). The wall (7) opposite the horizontally moving ram wall (6) of the baling chamber is guided on a slide (30) and can be moved backwards after baling to open the chamber and allow the bale to be pushed out on rails (20). The walls, floor and cover are reinforced by cross-beams (4,5) to permit high baling pressures. In the slide (30) is a compartment for a rolled-up tubular net (33) which is attached to the end of the baling chamber. Thus as the bale is pushed out of the chamber the net automatically unrolls and wraps round the bale. The ends of the net are closed to secure the bale, which can then be lifted on a crane hook. ADVANTAGE - Bale is contained against disintegration and is easily transported.
Patent DE-4208174-A1 (DE)
Title: Pneumatically operating pressing head for pallet system - has four swivelling pressing arms each designed as double-armed lever and four pneumatic piston cylinder units.
Inventor: PRECHTL ROBERT DIPL ING
IPC: B65G47/90
Filed: 1992-03-13
Abstract: Each piston cylinder unit (7,8) is coupled to an elbow lever mechanism whose two elbow levers (4,5) are attached to the horizontally and vertically movable frame and to one end of the associated pressing arm lever (1). A stop (10) defines the end position of the two elbow levers after exceeding the stretched position in the tension position. The length of one elbow lever of each mechanism can be variable. Each piston cylinder unit pref. comprises two pneumatic cylinders connected in series and controllable one after the other. USE/ADVANTAGE - Pressing arms have definite end position when tensioned which they retain even when pressure drops.
Patent DE-4210965-A1 (DE)
Title: Airbag for use as safety cushion - in cars has bottom fabric with defined gas permeability
Inventor: BARNEKOW ECKHARD VON
IPC: D03D1/02
Filed: 1992-04-02
Abstract: An airbag features a bottom fabric (10), which is equipped with a gas entry opening, is to be fastened on a steering column and has a defined gas permeability. A top fabric is sewn on to the bottom fabric (10) to form a bullet shape. The bottom fabric (10), features subareas (30,32,34,36) in jacquard construction. The bottom fabric (10) is equipped with a ring (16) in plain weave round its periphery. ADVANTAGE - The airbag, for use as a safety cushion in cars, is strong with the bottom fabric featuring a gas permeability that can be adjusted with a high degree of precision.
Patent DE-4211003-A1 (DE)
Title: Liq. vol. detector for dosing, coating or injection appts. - senses each drop delivered using optical detector aligned to light source and time measuring circuit
Inventor: KITAJIMA MASAICHI
IPC: G01N35/10
Filed: 1992-04-02
Abstract: A motor (5) drives a syringe (2). A nozzle (1) continuously delivers drops (8). The vol. delivered by the syringe can be varied. Light from a source (10) crosses the path of the delivered drops. An optical detector (13) intercepts the light propagated from the source. A time measuring circuit (14) measures the time during which light from the source changes due to a drop falling across its path. The measurement is based on a detection signal delivered by the optical detector. A time/injection vol. conversion circuit (15) ascertains the vol. of the drop on the basis of the measured time. USE/ADVANTAGE - Biochemical chemical or immunological analysis appts. in hospital or laboratory. Each single drop can be measured even if falling continuously but irregularly.