baber/WOPTO huggingface dataset:
Patent DE-4008698-A1 (DE)
Inventor: CORREA SANJAY MARC
IPC: F02C3/36
Filed: 1990-03-17
Abstract: A dry low NOx hydrocarbon combustion apparatus comprises first fuel burning means for rich burning hydrocarbon fuel at an equivalence ratio (ER) sufficiently greater than one so as to produce hot combustion gas products comprising substantially CO and H2 and negligible NOx cooling means for cooling said combustion gas products to a temperature below which ignition and thermal NOx products occur and second fuel burning means for burning said cooled combustion gas products at an ER sufficiently below one so as to minimize the production of NOx and CO. In a preferred embodiment fuel with or without fuel bound nitrogen (FBN) is burned in a high pressure machine (20 atm) comprising fuel and air compressors (200, 204), combustor (202) and turbine (206) at an equivalence ratio (ER) of about 2-3 and temperature below the threshold for creating thermal NOx. Prompt and FBN NOx are avoided due to rich mixture, having a death of O and OH, producing CO and H2 and little CH. The turbine (206) cools the products to reduce their temperature. The cooled products are mixed (208) with the remaining air (210) and burned (212) at a temperature below the thermal NOx threshold temperature at an ER of about 0.6 and used to drive a turbine (214). Commercial stand alone machines can be used for the rich (202) and for the lean (212) combustors wherein air and fuel are supplied to the rich combustors (202) and only air and the cooled combustion products (207) of the rich machine (202) are supplied to the lean combustor (212). <IMAGE>
Patent DE-4009317-A1 (DE)
Title: Prodn. method for pictorial or graphic, relief-type presentation - involves at least superimposed layers with illustrative motifs applied to basic surface
Inventor: ZERNKE WERNER
IPC: B44C3/02
Filed: 1990-03-23
Abstract: A typical presentation according to the method involves a table plate (2), a flat bowl (3, 4), a wine glass (5-7), and an apple (8, 9). The basic surface (1) for the presentation is of non-deformable cardboard. By means of corrugated paper strips (10), the layer (2) representing the table plate is constructed. The flat bowl is presented by two foils (3, 4), in which the wine glass, formed by spaced foils (5-7) is located. The apple is formed by two foils (8, 9) spaced away from the table plate (2).  To achieve the optimal raised relief appearance of the presentation, the foil layers can be four for the bowl, six for the wine glass, and four for the apple, all superimposed in their locations, and spaced by the corrugated cardboard intermediary layers (10). USE - For the presentation of pictorial or graphic relief illustrations, such as the topography of the earth surface.
Patent DE-4010681-A1 (DE)
Title: Middle frequency X=ray generator - has diode, resistor and capacitor between DC=DC converter output and DC=AC converter input to reduce ripple
Inventor: REUTHER ROLAND DIPL ING
IPC: H05G1/32
Filed: 1990-04-03
Abstract: The x-ray generator has a given circuit between the dc/dc voltage converter (3) and the dc/ac converter (5) whose bridge diagonal contains the primary winding of an hv transformer.  (The dc/dc converter supplies the dc/ac converter). The given circuit consists of a diode (18) and the parallel combination of a resistor (20) and a capacitor (19). The diode is poled to allow power to flow towards the load but to block the return of power caused by demagnetisation at the hv transformer (6) during the non-active phase of the dc/ac converter. This blocked power passes to the capacitor.  The capacitor is chosen so that the x-ray voltage drops at switch-off at no more than twice the speed at which is rises at switch-on. ADVANTAGE - Max. power with no extra power store. Reduction at ripple in dc. supply voltage.
Patent DE-4022318-A1 (DE)
Title: Construction of magnetic head for diskette player - consists of two-part ferrite head with metal film and glass encapsulation
Inventor: YANAGI MICHIO
IPC: G11B5/127
Filed: 1990-07-13
Abstract: The magnetic head consists of two basin parts  (10a,10b) made from ferrite laminations. Two films (11a,11b) of magnetic material are deposited on the sides of the heads and then covered with a glass coating (13) so as to leave a gap (12) between the two halves. Two grooves (14,16) are provided to accommodate windings. One groove (16) is flatter than the other groove (14). Preferably, the magnetic material film should be a thin film.  The head additional slots (17a,17b). USE/ADVANTAGE - Magnetic heads for use with diskettes, providing stability of the head.
Patent DE-4025418-A1 (DE)
Title: Di:phenyl and phenyl-cyclohexyl alkyl ester - in liq. crystalline medium for electro-optical display esp. LCD
Inventor: WAECHTLER ANDEAS DR
IPC: C09K19/30
Filed: 1990-08-10
Abstract: New alkyl 4-diphenyl-, 4-phenyl(di)cyclohexane- and 4-diphenyl(di)cyclohexane-carboxylates and  alkoxy-alkyl-diphenyl, -4-phenyl(cyclohexyl)cyclohexane and -4-(4-diphenyl)(cyclohexyl)cyclohexane cpds. are of formula (I) where n = 1-7; Q = -CO- or -(CH2)r-; r = 1-5; s = 0,1 or 2; t = 0 or 1; s + t = 1 or more; X = F, Cl, -CF3, -CN, -OCF3 or -OCHF2; Y,L and Z independently = H or F. (I) can be prepd. by standard methods, e.g. as described in Houben-Weyl, Methoden der Organischen Chemie, Georg-Thieme-Verlag, Stuttgart.  Pref. Y = Z = H; or Y = F and Z = H. USE/ADVANTAGE - (I) are claimed for use as components of liq. crystalline (LC) media for electrooptical displays, esp. LCDs.  They are useful in twisted cells, esp. of the supertwist type (STN) with twist angles much greater than 220 deg. They give STN displays with very high electrooptical gradient and displays with an active matrix with colourless and give LC metophase in a temp. range suitable f9r electrooptical purposes.
Patent DE-4026200-A1 (DE)
Inventor: COATES DAVID DR
IPC: G02F1/137
Filed: 1990-08-18
Abstract: Liquid crystalline medium having a high specific resistance and based on a mixture of polar compounds having a dielectric anisotropy greater than +1.5, characterized in that it contains one or more compounds chosen from the group of compounds of formula (Ia), (Ib) and (Ic), where each residue E is a single bond or one of the residues E can also denote -CH2CH2-, and L<1> and L<2> can denote H or one of the residues L<1> and L<2> can also denote fluorine, ring B denotes  alpha  or  beta , R<1> and R<2> independently denote n-alkyl, in which a CH2 group can also be replaced by -0-, -CHHal-, CHal2- or -CH=CH-, and X and Y independently denote H or F, provided that at least one of the residues X and Y in the molecule of formula (Ib) or (Ic) denotes F.
Patent DE-4028111-A1 (DE)
Title: Cooling and moistening roasted coffee beans - by treating prod. in fluidised bed contg. submerged water nozzles, switching supply reducing temp. below 30 deg. C. by air flow
Inventor: ROEBEN KLAUS WILHELM PROF DR I
IPC: A23F5/04
Filed: 1990-09-05
Abstract: In a procedure for cooling and moistening rosted coffee beans and similar products in a fluidised bed; a) cooling water is introduced intot he fluidised bed by nozzles at a distance below the bed surface equal to 50 and 80% of the bed depth, and b) after the waterDE4028111A - C supply has been switched off, conditioning air is introduced until the outlet temp. of the prod. falls below 30 deg.C. The cooling water at 50-70 deg. is pref. The cooling water is introduced during 6-17% of the treatment period. The pref. depth of water injection is at 60-70% of the bed depth below the bed surface. The flow rate of the fluidising air is set at 1.4-3 times, and pref. at 1.6-2.2 times, the min. fluidising flow rate.
Patent DE-4028385-A1 (DE)
Title: End stop for linear bearing - has clip locating into grooves each side of bearing support
Inventor: SCHORSCHER PETER
IPC: F16C29/04
Filed: 1990-09-07
Abstract: The bearings (3) are located between two support surfaces (1, 2) and aligned inside a cage (4). The movement of the cage is limited by an end stop each end of one support surface (1). The stop comprises a sprung clip (18) located into grooves (13) each side of the support surface and with one section of the slip extended to reach into the path of the cage. The clip can be made from steel rod or  from spring steel.  The locating grooves are of a similar depth to the clip thickness. The clip can also locate through other grooves in the support profile. ADVANTAGE - Low cost fitting, simple fastening, replaces costly plate end stops.
Patent DE-4031053-A1 (DE)
Title: Projection device using slide or video projectors -  uses overlapping images with screening strips for image edges
Inventor: SACHER FRIEDRICH JOSEF
IPC: H04N5/74
Filed: 1990-10-01
Abstract: The projection device has a large surface area projection surface (1) and at least 4 video or slide projectors (2), each contained within a respective housing (3), at the rear of the latter. The housings (3) lie closely adjacent, so that the projectors (2) each provide a respective section of the overall image. The horizontal and vertical front edges of each housing (3) lie at a given distance from the rear of the projection surface (1), so that the partial images overlap at their edges. The overlapping image edges are covered by screening strips (9) ensuring that they have the same brightness level as the remainder of the image. ADVANTAGE - Ensures uniform brightness of entire image.
Patent DE-4031844-A1 (DE)
Title: Use of alkoxylate derivs. of higher amine(s) in washing compsns. - preventing transfer of dye from dyed to undyed fabric
Inventor: HASLER ROLF DR
IPC: C11D1/62
Filed: 1990-10-08
Abstract: Cpds. of formula (I) are used as additives for washing compsns.. In (I) R = 8-22C aliphatic hydrocarbon gp.; R1 = H or 1-22C aliphatic hydrocarbon gp.; R2 = H or 1-4C alkyl; alkylene = ethylene or propylene; X = H, 1-4C alkyl or Ph-(1-2C alkyl): A- = gegenion; x, y = 0 or 1; r = 1 or 2; m, n, p = 0-200; m + r.n + p = 10-200. USE/ADVANTAGE - (I) are additives for textile washing compsnsn., for both industrial and household compsns.. Dyed textiles can be washed alone or with undyed textiles, and coloured goods can be washed in domestic machines. Re-deposition of dissolved dyes and dye breakdown prods. is prevented. (0/0)
Patent DE-4040494-A1 (DE)
Title: Object surface test arrangement - contains video camera processor object position detector and automatically displays video signal when defect detected
Inventor: KANZAKA TAKASHI
IPC: G01N21/89
Filed: 1990-12-18
Abstract: The arrangement processes a video camera image of the surface using a device contg. a surface defect detector. A position detector is connected to an object feed system to produce data about the delivered length of the object. Position and defect data are fed into a video processor and to a printer which produces a printout of the defect detection signals.
Patent DE-4040844-A1 (DE)
Title: Transferring or delivering roller - comprises shaft, concentrically running tube and 2 disengageable inwardly projecting bearing parts at roller end to allow driven or free rotation
Inventor: CHRISTIANSEN WERNER
IPC: B65G39/09
Filed: 1990-12-20
Abstract: The end-driven carrying- or delivering roll (10) has a shaft (12), a tube (14) running concentrically to the shaft (12) is new. Two inwardly projecting, opposed bearing parts are positioned in the space between the shaft (12) and the tube at the ends. The bearing parts are removable from the pipe and are mutually interchangeable. The inner surface (14c) of the tube (14) and the fist bearing part (18) is (in)directly frictionally- or pref. form-connected in the mounting position on the first tube end (14a). The other tube end (14b) is freely rotatable with and/or against the tube. The second bearing part is configured so that it is freely rotatable with the tube in the mounting positions at both tube ends. - Tube-shaped bushings (22, 24) at both tube ends, extend into the tube and receive the bearing parts (18, 20). The bushings are fitted to be torsionally resistant against the corresp. inner surface of the tube (14). The corresponding sections of the fist and second bearing part, the tube, bearing parts or the bushings (22, 24) are made of plastic. The roller is pref. made of a polyamide ABS, or metal.
Patent DE-4101003-A1 (DE)
Title: Automatically removing leather hide from rotary pigmenting machine - by suction applied from apertured and ribbed roller
Inventor: BIANCHINI CARLO
IPC: C14B17/00
Filed: 1991-01-15
Abstract: In a rotary roller machine for pigmenting large leather hides, a pigmenting roller, working in conjunction with a counter roller for advancing the pigmented leather, has an extractor gp.  including at least one suction element closely adjacent the pigmenting roller. Downstream of the counter-roller the extractor gp. engages to leather surface opposite the pigmented face and transfers the  leather to a conveyor. The suction element has suction apertures in an extractor roller whose axis is parallel to the pigmenting roller, with the suction zone limited by a closure loaded by a counterweight. A flexible cover on the extractor roller has radial detachment fins and is held by position adjusters. A frame holding the essential extractor elements may be advanced towards the pigmenting roller by a pneumatic piston also providing resilient balance. ADVANTAGE - Avoids the heavy work, normally involving two people of removing treated hides without smearing.
Patent DE-4101672-A1 (DE)
Inventor: SCHWEIGER KLAUS
IPC: F16H59/02
Filed: 1991-01-22
Abstract: The invention concerns a motor vehicle with a gearbox (1) which can be operated optionally in the semi-automatic or fully automatic mode and which is fitted with a gear-range selector (18) and a gear-shift control (21). The gear-range selector enables a gear range to be pre-selected in which the gearbox (1) is stepped up or down by operating the gear-shift control (21). So that both the driver's hands can stay on the steering wheel while these gear-shift operations are being carried out, permitting the driver to concentrate on the traffic, the gear-shift control (21) is designed as a foot switch (22, 24) fitted in the vicinity of the driver's feet.
Patent DE-4104054-A1 (DE)
Title: HP piston and cylinder aggregate - includes stepped piston seal mounted in cylinder
Inventor: EICKMANN KARL
IPC: F04B53/16
Filed: 1991-02-11
Abstract: The high pressure assembly is esp. for pressures above 1000 bar. It has pistons reciprocatable within cylinders in which part of the cylinder (611) directed towards the high pressure end is widened into a chamber (611') with a base surface (619) around the OD of the piston (610). A stepped sealing ring (602) which surrounds the piston is supported on the base surface of the chamber. USE/ADVANTAGE - Method of improving the sealing system to give increased efficiency or reduced friction.
Patent DE-4108057-A1 (DE)
Title: Triggering device for rotating war-head with laser rangefinder(s) - employs passive IR detector to increase probability of impact on target w.r.t. range and rotational speed
Inventor: BENEDIKTER RICHARD DR
IPC: F42C13/02
Filed: 1991-03-13
Abstract: Two AM/CW laser rangefinders (2,3) scan a circular track with beams at different angles to the axial direction. A two wavelength passive infrared radiometer (9) is directed at their point of impact, and connected to combinatorial logic (21) which detects a significant target. The range signals (12,13) are processed for absolute altitude (15) and discontinuity profile (14), centroid location (16) and time difference (17). A delay calculator (19) relates the firing signal (23) to rotational speed and range. ADVANTAGE - With parachute-braked warhead-scanning a spiral target track, point of impact is nearly independent of target distance.
Patent DE-4109693-A1 (DE)
Title: Current generator for motorcycle or bicycle - uses permanent magnet ring and cooperating coil providing induced current
Inventor: KUNZIG HANS-WERNER
IPC: B62J6/06
Filed: 1991-03-23
Abstract: The current generator for a motorcycle or bicycle uses a permanent magnet ring incorporated in the mudguard, in the wheel rim, or attached to the spokes, concentric to the wheel axis. The current generation is effected via a coil supported between the wheel fork and the wheel adjacent path of movement of the permanent magnet ring. ADVANTAGE - Prevents damage due to road dirt.
Patent DE-4109829-A1 (DE)
Title: Infectious waste decontamination method - involves moistening and preheating by steam in microwave chamber before irradiation
Inventor: MERTSCH JOACHIM DIPL ING
IPC: A61L11/00
Filed: 1991-03-26
Abstract: The method is for decontaminating infectious waste, this being shredded, moistened, and heat-treated by microwave irradiation. The shredded waste is delivered continuously or in batches into a microwave chamber, which can be sealed off. It is then moistened and preheated by steam, after which it is heated to treatment temperature by microwave irradiation and steam.  It is kept at this temperature for a minimum period. ADVANTAGE - Rapid and certain sterilisation.
Patent DE-4111282-A1 (DE)
Inventor: BESECKE SIEGMUND DR
IPC: C08L33/12
Filed: 1991-04-08
Abstract: The use of styrene-acrylonitrile copolymers for the preparation of thermoplastic, transparent, polymethyl methacrylate-based moulding compositions of increased stress cracking resistance.
Patent DE-4111586-A1 (DE)
Title: Electric load switch appts. with arc limitation - uses mechanically coupled short-circuit closures each with double function
Inventor: HOLLMANN FRITZ
IPC: H02B1/16
Filed: 1991-04-10
Abstract: The switch appts. uses at least two short-circuit closures (11, 12), each of which fulfils a double function and which are at least indirectly coupled together via a mechanical coupling. Pref. the switch appts. has a collector rail space (2), a switch space (3) and at least one cable termination space (4), for each switch cell (1). Each of the spaces (2, 3, 4) is partitioned from one another, one of the short-circuit closures (12) acting as an earthing device and contained in the cable termination space. ADVANTAGE - Full arc protection.
Patent DE-4112807-A1 (DE)
Title: Bicycle ridden lying down -  has frame sections folding alongside each other on oblique horizontal axes
Inventor: HASE MAREC
IPC: B62K3/00
Filed: 1991-04-19
Abstract: The bicycle is ridden lying down, having a steerable front wheel, a chain-driven rear one, and a frame between them accommodating the front-wheel fork with steering-gear, the rear-wheel fork, the pedals and the seat. The frame contains one or more hinge joints (19,20,21) lockable in the extended position and alongside the chain (14).  The hinge axes (22-24) are horizontal and at an acute angle (28-30) to the transverse direction.  Thus the sections (31,32,33) of the frame fold alongside each other. ADVANTAGE - No need to remove chain when folding for transport.
Patent DE-4114808-A1 (DE)
Title: Self locking eyelet for crane hooks - has two parallel support brackets fixable onto load to be carried by vertically movable bolt
Inventor: FRANK HANS
IPC: B66C1/34
Filed: 1991-05-07
Abstract: Each support bracket (2) has a parallel oblong hole (4) extending in the lift direction (3). It contains a support bolt (5) which extends across the lift direction, but is displaceable in the lift direction. A locking element (10) for the crane hook (16) is set laterally spaced from the bolt between the support brackets and can be brought into active connection with the support bolt by an operating element (8) such as a double-armed rocker lever, whose one arm (7) is connected to the bolt (5) and whose other arm (15) is connected to the locking element. USE/ADVANTAGE - The crane driver can operate the hook and lock from his cab by threading the hook into the eyelet formed by the brackets and bolt and then raising the bolt up to trigger the locking element.
Patent DE-4118823-A1 (DE)
Title: Active suspension for vehicle with fail=safe mode - has fail=safe valves for each unit to control fluid flow to and from unit
Inventor: NEUHAUS ROLF DR ING
IPC: B60G17/056
Filed: 1991-06-07
Abstract: The active suspension has a control valve system (44 to 77) for each unit. The safety system is operated if a defect is detected. This system takes over the suspension control and has separate valves to connect the suspension unit to the supply and to the return flow. The valves are normally held closed by springs and are operated by solenoids. The solenoid current is controlled to regulate the open position of the valves, thereby controlling the fluid. The system includes sensors for pressure, displacement and dynamic forces. ADVANTAGE - Uses minimum of fluid flow, efficient control, failsafe.
Patent DE-4126477-A1 (DE)
Title: Closure for membrane arrangement - comprises cannula, cover cap and mandril with press-in cap
Inventor: LIER ROLF
IPC: B65D51/22
Filed: 1991-08-07
Abstract: The components of the closure are a cannula (3), a cover cap (5) and a mandril (4) with a press-in cap (6). The length of the mandril is so chosen that the membrane is only penetrated when the cap (6) is pressed in, whereby as second function after the first penetration of the membrane the freeing of the cannula (3) is guaranteed by the mandril (4) remaining in the cover cap (5). The cannula (3) can be screwed on to a thread, knocked on to it or formed on it. USE/ADVANTAGE - For membrane aluminium tubes, in which the opening of the membrane is facilitated, with the feed cannula maintained free and undesired unscrewing of the complete closure is prevented.
Patent DE-4129945-A1 (DE)
Title: Pivot activator for cover flap operation of tape cassette recorder - has sensing arm associated with flap that is engaged by cassette to provide opening action via rack and pinion
Inventor: KROHN MARTIN
IPC: G11B33/02
Filed: 1991-09-09
Abstract: The mechanism is used to provide opening of the front opening flap in a magnetic tape cassette recorder. The flap (7) is hinged and has a pinion (25) at one end that is in mesh with a curved quadrant toothed rack that is formed as an extension on a pivot (13) mounted sensing arm (11). The arm has a tip (17) that engages with the cassette under certain conditions. During loading, the leading edge of the cassette (21) pushes the flap open and in doing so raises the sensing arm. For ejection of the cassette the arm tip (17) is contacted and this opens the flap again. ADVANTAGE - Uses cassette movement to open loading flap.
Patent DE-4130878-A1 (DE)
Title: Light-emitting semiconductor mfr. with recesses in substrate - producing e.g. double heterostructure LED in package with gallium aluminium@ arsenide layers having different aluminium@ contents
Inventor: LINNEBACH RICHARD DIPL PHYS DR
IPC: H01L33/00
Filed: 1991-09-17
Abstract: The recesses (11) are formed in the substrate (1) in the shape of e.g. conical frusta by masking and etching. A first contact layer (6) is applied before each recess (11) is filled with a transparent substrate layer (2) by liq. phase epitaxy. The light-emitting layer (4) is sandwiched between two protective claddings (3,5). A second contact layer (7) reduces the contact resistance between the metallisation and the semiconductor, esp. if the A1 content of the semiconductor layers bordering on the metallisation is 70% or more. ADVANTAGE - Mfr. with sufficiently thick transparent substrate layer facilitated.
Patent DE-4137356-A1 (DE)
Title: Speed-dependent power-assisted steering for motor vehicle - provides greater or less assistant torque in proportion to speed-sensitive deflation or inflation of tyres.
Inventor: VIELWERTH GERHARD
IPC: B62D6/00
Filed: 1991-11-13
Abstract: The curve which relates the steering torque (LM) to the steering angle (LW) is raised when the tyre pressures are reduced automatically at lower values of road speed. The assistance rendered to the steering is reinforced or diminished in accordance with the decrease or increase in tyre pressures, so that the influence of the latter on the steering effort demanded of the driver is more or less completely compensated. ADVANTAGE - The steering behaviour of the vehicle is at least approx. independent of the tyre pressures, making for enhanced ride comfort at low speeds.