baber/WOPTO huggingface dataset:
Patent DE-4023154-A1 (DE)
Title: Fabry-Perot resonator e.g. for astronomy - has two reflectors formed as superconducting films on carrier(s)
Inventor: RENK KARL F PROF DR
IPC: G01J3/26
Filed: 1990-07-20
Abstract: A Fabry-Perot resonator has two reflectors, at least one of which is partially transmitting and consists of a superconducting film on a carrier substrate. The superconducting film or films are unstructured or at least partially structured and are thin films in the physical sense. Each superconducting film (3, 4) can be applied to a separate carrier (5, 6) and the carriers can be arranged parallel to each other or at an acute angle. USE - For use in wavelength range 50 microns to 10 mm., e.g. for astronomy.
Patent DE-4029107-A1 (DE)
Title: Varistors with improved radial resistance distribution -  comprises differing ceramic compsn. for centre and mantle for cylinder for high energy dissipation
Inventor: BRUCHHAUS RAINER DR
IPC: H01C7/112
Filed: 1990-09-13
Abstract: Varistors prepn. comprises dividing cylindrical form into 2 coaxial parts, using ceramic mass of one compsn. for the inner core and using a mass with a different compsn., contg. pref. a different amt. of Bi2O3, SiO2 or Sb2O3 for the outer mantle, sintering and coating part with electrodes. Mfr. pref. comprises using cylindrical press-form in which 2 coaxial compartments have been formed. Pref. compsn. of the ceramic mass in the outer mantle, compared with that of the inner core is: Bi2O3 0.5-0.75 times, SiO2 or Sb2O3 2-1.1. The radius of the core is pref. at least 70% of that of the complete part. USE/ADVANTAGE - Using outer mantle of a freely selectable width with a clearly defined compsn. The change in the concn. of Bi, Si or Sb-oxide reduce grain growth in the mantle and so a higher resistance, reducing the occurrence of fused channels due to high energy dissipation. Higher energy dissipation.
Patent DE-4029807-A1 (DE)
Inventor: STOLTEFUSS JUERGEN DIPL ING
IPC: C07D215/48
Filed: 1990-09-20
Abstract: A process for preparing 3-phenyl-quinoline-5-carboxylic acid comprising reacting 4-amino-3-hydroxyphthalide with phenylacetaldehyde.
Patent DE-4035824-A1 (DE)
Title: Seal, especially for spring leg piston rod - has guide in housing, with section consisting of two sealing surfaces, rings, partitions and compartments
Inventor: STUMPF ROBERT
IPC: F16F9/36
Filed: 1990-11-10
Abstract: The seal, especially for a spring-leg piston rod (1) has a guide (2) in a housing. The guide (2) contains an axially adjustable rod-section which is enclosed by a sealing-section supported on the guide (2) and possessing a peripheral sealing surface. The sealing section has radially opposite, axially displaced peripheral parts. The sealing section has two sealing surfaces (12", 12"') axially behind each other and enclosing a pressure-compartment between the two sealing surfaces. The sealing section has two axially and peripherally spaced apart sealing-rings (3, 3') joined by two axial partitions (4, 4') dividing the space between the sealing rings (3, 3') into two compartments with different pressures, the sealing rings (3, 3') and partitions (4, 4') protrude radially inwards into a radial cavity (5) in the guide (2). ADVANTAGE - The easily made and replaced seal gives a reliable seal.
Patent DE-4038902-A1 (DE)
Title: Flat lamp holder - with conductive lines and lamp fixing points
Inventor: KITTSTEINER ROLF
IPC: F21S2/00
Filed: 1990-12-06
Abstract: A lighting component comprises a flat insulation -coated lamp holder which has two conductive layers of different potential connected to a current source and which has fixing points at which a current circuit is closed by fitting one or more current food components and lamps. The novelty is that the conductive layers (18,19) are in the form of lines provided on one side of the lamp holder (11) and that each fixing point (20) is at least partially surrounded by the two layers (18,19) of different potential.
Patent DE-4042030-A1 (DE)
Title: Platinum pptn. from nitric acid also contg. silver and palladium - with ammonium chloride, excess chloride and oxidant after precipitating silver as chloride
Inventor: KNOTHE MAX DR RER NAT
IPC: C22B11/06
Filed: 1990-12-28
Abstract: Sepn. of Pt from a soln. (I) in HNO3, which also contains Ag and Pd, is carried out by first pptg. Ag as AgCl and then Pt as diammonium hexachloroplatinate (IV) and Pd as diammine dichloro-Pd (II). After pptg. the Ag, Pt is pptd. from the soln. contg. Pt and Pd in the presence of excess Cl ions, under special thermal conditions and with addn. of NH3Cl and an oxidant (II). (II) is pref. NaClO3 or NaBrO3. The special thermal conditions involve heating near the b.pt. for several hrs., with reflux cooling, and evapn. 2-3 times with addn. of HCl; or evapn. several times with addn. of HCl, evapn. to dryness and briefly over-heating the residue and taking it up in HCl. USE/ADVANTAGE - For (I) from the lixiviation stage of working up anode sludge from Ag electrolysis. It is also useful for recovering noble metals from other prim. and sec. raw materials. Pt can be sepd. with high selectivity and in high yield.
Patent DE-4100764-A1 (DE)
Title: Tool and installation for forming outer and intermediate soles - comprising shoe body, side moulding parts and counter-pressure plate, side moulding parts having openings in side faces
Inventor: KRAEMER RUDOLF
IPC: B29D35/08
Filed: 1991-01-12
Abstract: Tool (I) for moulding shoe soles having outer sole and one intermediate sole comprises: (1) one last for the shoe body, (2) one pair of side moulding parts, and opt. (3) one counterpressure plate, the side moulding parts which, in operation, are in closed position, having openings in the side faces. In the closed position, one casting channel leads into a mould cavity for forming the outer sole, and the other leads into a mould cavity for forming the intermediate sole, one of these channels opening into one front face of the side moulding parts and the other channel opening into the other front face of the side moulding parts. Soles are formed from mixt. of isocyanate and polyol forming a PU. Side moulding pieces in closed position have number of casting holes corresp. to number of layers to be formed, one of the two casting holes opening into one front face of the side moulding pieces and other opening into other front face of those pieces. Side moulding pieces have number of casting holes corresp. to number of layers or sections of layers, and side moulding pieces in direction of heel tips and direction perpendicular to it have a plane of sepn. and the casting holes empty into front faces and side faces of side moulding pieces. ADVANTAGE - More compact work stations are achieved, with mixing devices arranged in two lines instead of all in one, technical requirements for prodn. line are reduced. (16pp Dwg.No.1a/8)
Patent DE-4101837-A1 (DE)
Title: Plastics packaging aid for folded boxes - has rectangular base panel with vertical panels on corner edges
Inventor: MEURER STEFAN
IPC: B65D21/02
Filed: 1991-01-23
Abstract: The entirely recycled plastics packaging aid for positioning on the surface of which folded boxes stand has a rectangular base panel (2) of the same size as the surface on which the folded box stands. Near the corner edges of the panel (2) are pairs of vertical panels (3) at right angles to each other. The panels (3) extend up and down above the base panel (2). ADVANTAGE - The folded box for packaging goods avoids the bottoms getting wet.
Patent DE-4102252-A1 (DE)
Title: Negative photoresist for sub-micron structurising - contains mixed cresol formaldehyde condensate as binder and specified quinone di:azide cpd., developed using dry process
Inventor: ABRAHAM HANS WERNER DR
IPC: G03F7/26
Filed: 1991-01-23
Abstract: Negative photoresist suitable for dry development for microlithographic recording is produced by coating a semiconductor substrate with a film-forming soln. in an organic solvent (mixt.), drying, exposure with UV or visible light, gas phase silylation and development with a plasma contg. O2. The novelty is that the binder used consists of a condensation prod. of cresol mixts. and HCHO and the light-sensitive component is a 2,4-bis-(1-hydroxybenzyl or 1-hydroxy-3-alkyl-benzyl)-phenol or -6-alkylphenol tris(1,2-naphthoquinone-(2)-diazido)-4- or -5-sulphonate) of formula (I) and opt. a dyestuff. In (I), R = alkyl or H; D = a 1,2-naphthoquinone-(2)-diazide-4- or -5-sulphonyl gp.). USE/ADVANTAGE - The resist is suitable for making microelectronic devices in the multi-Mbit-memory level. Masks for producing structures with high resolution (in sub-micron region) and definition, with great technological latitude, can be made in less time and using less energy than usual.
Patent DE-4104645-A1 (DE)
Inventor: SCHOLZ WERNER DIPL ING
IPC: G11B20/10
Filed: 1991-02-15
Abstract: For reproducing magnetically recorded binary signals, a signal composed of pulses that are alternatively positive and negative with respect to a center line is scanned from the tape. In order to recover the binary signal, level discriminators that are capable of detecting the low level and the high level of the signal are required. Known circuitry require an AGC and are only suitable for direct voltage-free binary signals. The object of the invention is to design circuitry that requires no AGC and that is also suitable for binary signals having a direct voltage component. For that purpose, the signal is applied to two comparators (2, 3), whereas the difference between the applied bias voltages is regulated by the means value of the output voltages (C1, C2) ofthe comparators and the means pulse width of the output voltages is approximately constant. The invention is particularly useful for video recorders with digital signal recording.
Patent DE-4104872-A1 (DE)
Title: Throttle-free load control for Otto engine - using two inlet valves per cylinder operated by two cam shafts
Inventor: SCHIECK WOLFGANG
IPC: F01L1/26
Filed: 1991-02-18
Abstract: The engine has two inlet valves (E1, E2) plus one outlet valve (A1) cylinder, and two single camshafts (N1) via. rigid shafts with fixed cams, and unalterable cam contours. The first inlet (E1) and the outlet valve are operated by the first camshaft (N1), and the second inlet valve (E2) by the second camshaft. The first camshaft requires no variation possibility in the control times, and is directly driven from the crankshaft. The camshafts (N1) have the same cam layout for the inlet valves and rotates at the same speeds. The second camshaft is driven via an adjustment mechanism which allows it to be regulated relatively to the first camshaft (N1). This causes the inlet valves to move in equal phase, and thereby to achieve a max. cylinder fill, or for the second inlet valve (E2) to be phase-displaced in relation to the first (E1) so that for the part load operation of the engine, the second inlet valve only closes when a part of the fresh load is pushed back into the aspiration system by the piston rising on the compression stroke. This causes only the amt. of fresh load to remain in the combustion chamber which is required for prodn. of the desired power. USE/ADVANTAGE - Controls the load of an Otto engine without use of a throttle.
Patent DE-4109555-A1 (DE)
Title: Checking position of test object on carrier, e.g. drinks container - by detecting light reflected or scattered by object and varying positional relationship of source, carrier and detector to achieve defined intensity
Inventor: LEISTNER HERMANN
IPC: B07C5/34
Filed: 1991-03-22
Abstract: The method of checking the position of a test object on a carrier (12) involves illuminating the object (11) with a beam of defined propagation characteristic and energy content. The intensity of the light reflected and/or scattered fromt he object is used to determine the object position. The carrier is brought into a defined position w.r.t the light source (23). This position, the light source arrangement and the position of the detector (29) are varied w.r.t. each other to produce a defined intensity value at the detector. This intensity has a super imposed relationship to the deviation of the object fromt he desired position. USE/ADVANTAGE - E.g. for positioning containers for automatic drinks filling. Reliable position checking with very short measurement times so as not to delay conveyor flow.
Patent DE-4111576-A1 (DE)
Title: Worm gear with globoidal screw and worm wheel - has teeth spring-mounted on bolt with flat steel spring and screws
Inventor: ARNDT FRANZ MARTIN
IPC: F16H55/22
Filed: 1991-04-10
Abstract: The worm gear consists of a globoidal screw and worm wheel, the globoidal worm wheel teeth each consist of two movable cogs (1, 2) into each of which are spring-mounted a bolt (3) by means of a flat steel spring (12) and screws (14). An adjusting-spring is axially adjustably mounted in the wheel (16). The bolts possess a cylindrical pin with thread. The cogs are centred in sprung grooves by means of flat steel springs, and contain pressurised-oil pockets connected by ducts to coupling holes and oil-ducts (10). Pressurised-oil couplings convey the oil by means of O-rings (6). ADVANTAGE - The efficiency of the worm gear is increased by reducing the throughflow volume of the lubricating oil by attaching one cog-flank to a pressurised medium pump, and by reducing the gap in the wheel-cog.
Patent DE-4116823-A1 (DE)
Title: Actuator for manually operated gearbox - has tongue to eliminate play in drive which rotates actuating shaft
Inventor: SCHETTER MARTIN
IPC: F16H63/30
Filed: 1991-05-23
Abstract: The manually operated gearbox for a motor vehicle is actuated by a lever which is rigidly attached to a sleeve (16) which forms the outer race of a linear bell bearing. The sleeve (16) is of cylindrical form with longitudinal grooves (11) formed in its inner surface. These grooves receive balls (9, 10) which engage grooves in the shaft (3). The shaft (3) is thus forced to rotate with the sleeve (16) but can be moved axially relative to the sleeve. The sleeve has a tongue (15) formed, by longitudinal (13) and transverse cuts (14), in the wall of one of the grooves. This tongue (15) is bent inwards in order to eliminate any play between the balls and the grooves. USE/ADVANTAGE - Gear change mechanism without play.
Patent DE-4121743-A1 (DE)
Title: Optical fibre conductor jack-plug - uses glass capillary held in guide sleeve in turn received in outer sleeve
Inventor: DOUKLIAS NIKOLAOS DR
IPC: G02B6/38
Filed: 1991-07-02
Abstract: The jack-plug has an outer sleeve (AH) enclosing a guide sleeve (FH1) receiving the optical fibre (LWF) via a glass capillary (GK). The latter contained in the guide sleeve is united with the outer sleeve at the end face. Pref., the glass capillary is secured in the guide sleeve (FH1) via an adhesive, the bore for the glass capillary (GK) being accurately centred relative to the guide sleeve. The latter is pref. made of ductile material. ADVANTAGE - Secure retention of glass capillary.
Patent DE-4123075-A1 (DE)
Title: Distributor for thick material carried along pipes - consists of branch pipe with outlet pipes, and two outlet holes, with closure surface
Inventor: BENCKERT HARTMUT DR
IPC: F04B7/00
Filed: 1991-07-12
Abstract: The distributor for conveyors transporting thick material incorporates, on the input side, a branch-pipe (2) on which pressure is exerted by a pulsated current, and, on the outlet side, joined by at least two pressurised outlet pipes (3, 3'), - at the same time the other pipes are temporarily closed. The branch pipe is connected to a drive shaft forming the pivot axle (23). The distance between two outlet-side holes (28) is larger than their diameter. The end-wall between the two holes (28) forms a closure-surface (29) closing the outlet (26) of the swing pipe (24). ADVANTAGE - The pulsating current of thick material can be distributed smoothly to several, pressurised conveyor pipes.
Patent DE-4123539-A1 (DE)
IPC: G02F1/13
Filed: 1991-07-16
Abstract: The invention concerns a liquid-crystal material based on a mixture of polar compounds exhibiting positive dielectric anisotropy. The material is characterized in that it contains one or more compounds of the general formula (I), in which L<1> and L<2> are each H or F; n is 1 or 2; X is H, F, Cl, CF3, OCF3 or OCHF2; and R is an alkyl, oxaalkyl, fluoroalkyl or alkenyl group with up to 7 C-atoms.
Patent DE-4132881-A1 (DE)
Title: Brushless DC motor control circuit - has circuit for phase displacement of commutation times depending on motor speed using functional relationship
Inventor: KARWATH ARNO
IPC: H02P6/06
Filed: 1991-10-03
Abstract: A brushless motor is controlled with a commutation device which feeds current (and also breaks current) to the stator phase windings in positive or negative directions depending on the angular position of the rotor. There is a circuit for the phase displacement of commutation times depending on measured motor speed according to a predetermined functional relationship. This may be linear or non-linear. At initial starting, the commutation times are in advance of the rotor position by a first phase angle, and during run-up, the advance is a second phase angle, this being smaller than the first angle. If the motor speed exceeds a certain value, the commutation lines are advanced increasingly more relative to the rotor position. ADVANTAGE - Gives improved overall efficiency over wide speed range.
Patent DE-4133280-A1 (DE)
Title: Wall facing skin with part-circular cross section + - has recess for a cooler and inward and outward air flow openings and ducts
Inventor: GEMUENDEN MANFRED
IPC: F24F1/0071
Filed: 1991-10-08
Abstract: The wall face skin is C-shaped in cross section and has a recess for a cooler. There are one vertical and two horizontal air ducts, and inward and outward flow openings.The air ducts can be removed for cleaning without disturbing the stability of the structure. Air permeable cladding is fixed over the openings, and the vertical side cheeks of the wall skin are fitted with rails for the attachment of fittings,such as filing cabinets or other office equipment. ADVANTAGE - Improved ventilation without use of fans etc.
Patent DE-4133855-A1 (DE)
Title: Road vehicle velocity regulators - are switched on and off automatically in dependence on detected velocity and engine revs
Inventor: AUGESKY CHRISTIAN DR
IPC: B60K31/00
Filed: 1991-10-12
Abstract: The velocity regulator has at least one operator controlled element for setting a vehicle speed at a desired value. The actual vehicle velocity is matched to the selected velocity value. The velocity regulator is switched on and off in dependence on the detected vehicle velocity and the detected engine revs. Pref. the detected velocity and engine revs are used to determine the selected gear ratio, with the velocity regulator switched in and out accordingly, eg in dependence on the max. velocity for each detected gear ratio. ADVANTAGE - Improved regulation and reliability characteristics.
Patent DE-4139507-A1 (DE)
Inventor: PLICKERT BERND
IPC: B25B11/00
Filed: 1991-11-27
Abstract: A device for mounting plate-like elements, such as glass plates, that form an object, for example shelves, when several are mounted together, and that are at first temporarily held by the mounting device and then fixed, for example glued, to each other, has suction nipples capable of being removably fastened to the elements by vacuum generation, and components, for example bars, that can be removably linked to each other and upon which the suction nipples can be removably fastened. The suction nipples can be linked by flexible tubes (7) to a suction chamber linked to a suction pump. In each of the ducts that extend between the suction areas (4) of the suction nipples and the suction chamber is arranged a hand-operated, easily accessible check valve (8). The suction areas (4) of the suction nipples have a very small fixed gap, in particular approximately 0.3 mm wide, between the surface of the element (1) and the opposite surface of the suction nipple, so that the suction holding force can act very quickly when the check valve (8) is opened. The suction areas (4) of the suction nipples are connected to the flexible tubes (7) by a very small bore (9), in particular a bore having approximately 1 mm diameter, so that any pressure increase in a suction area (4) of a suction nipple cannot affect at all the remaining suction system, or only very slowly. The elements can thus be temporarily assembled in a quick, simple and precise manner.
Patent DE-4200780-A1 (DE)
Title: Stretching device on flat base and vertical frame - is equipped with hydraulic system integral with stretching elements which are mounted on frame and have central housing for workpiece
Inventor: GIEVERS WINFRIED
IPC: B23Q1/00
Filed: 1992-01-10
Abstract: A stretching comprises a vertical flat frame (2) attached to a horizontal base plate (1). The frame (2) surrounds a space (3) into which work pieces are inserted, and mounted on the frame (2) are stretching elements. These elements have an integral hydraulic pressure system with a connection (21) for the supply. The space (3) has straight side stops and rounded corners. USE/ADVANTAGE - Saves time and has increased capacity.
Patent DE-4210522-A1 (DE)
Title: Exterior lamp with flower and plant carriers or surfaces for their arrangement - uses lights with reflectors and fittings to assist climbing of tendrils combined to form stand or mast structure and with plant container at foot of "green lamp".
Inventor: KLAUS JUERGEN
IPC: A01G9/02
Filed: 1992-03-31
Abstract: Suitable carrying, holding or reception elements (3), are provided at the lamp mast or carrier and/or the lamp itself, for the flowers or for training the plants or the tendrils. The plant growth is taken up by carrying, holding or reception elements (3), which are found directly at the lamp mast and/or at additional arms. The lamp itself is so arranged, that it has a min. distance to the plant growth. USE/ADVANTAGES - Inner city pedestrian ways, boulevards, hotels and similar. Combines plant and flower display with illumination unit, to give constructive and aesthetic unit, which is practical and decorative.
Patent DE-4212542-A1 (DE)
Title: Braking energy recycling system for wheeled vehicle, train, electric motor - has motor-pump unit to accept pressurised oil from reservoir during acceleration and deliver it during braking
Inventor: HUBER KURT
IPC: B60K17/16
Filed: 1992-04-15
Abstract: If braking energy in vehicles is recycled to give the necessary extra boost during acceleration, the overall machine efficiency is increased. The patent describes a hydraulic system. The brake energy converter is an oil motor-pump unit which pumps oil through a valve into a reservoir during vehicle braking. During vehicle acceleration, however, the unit acts as a motor driven by the pressurised oil from the reservoir via the valve. In the reservoir, the oil pumped inwards moves a piston which compresses nitrogen in a cylinder. The compressed nitrogen acts as an energy store to return oil to the oil-motor when necessary. ADVANTAGE - Increased vehicle efficiency.
Patent DE-4212606-A1 (DE)
Title: Mortar and plaster mixing - has assembly on site to heat water feed to a required temp.
Inventor: BENZ THEOPHIL
IPC: B28C5/46
Filed: 1992-04-15
Abstract: To stir mortar and lime plaster with water, the material is stirred with water heated to a required temp. The assembly has a container (12) for the material, and a water feed (14) with a water heater (20) to bring it to the required temp. The water heater (20) is near the container (12) to give a short path for the heated water to the container (12). The water feed (14) is insulated between the heater (20) and the container (12). USE/ADVANTAGE - The method, for use at a construction site, is for stirring dry ready mortar with a methyl cellulose content, dry mortar, plaster mixtures with mineral additives or porous plaster mixtures with components to develop a gas. The method gives a material and water mixture, on site, matching the climatic conditions at the time.