baber/WOPTO huggingface dataset:
Patent DE-3925312-A1 (DE)
Title: Microscopic imaging appts. for thermal and thermo-elastic structure - has piezoelectrical flexural transducer detecting mechanical vibrations caused by light variations
Inventor: BARTHEL JOCHEN DIPL PHYS DR RE
IPC: G01N21/17
Filed: 1989-07-31
Abstract: The arrangement consists of a source (1) of visbile, visible, i.r. or u.v. light, a lens (2) for producing a microscopic light spot on the specimen, a light intensity controller (4), a scanner (5a,5b), a detector of the mechanical vibrations of the specimen caused by the varying illumination, an electronic amplifier, a signal processor and an image reproduction device. The detector of the mechanical vibrations is a piezo-electric flexural transducer (8) placed in acoustic contact with the specimen. The specimen and the flexural transducer are mounted together on a rapidly moving specimen table (9) in a sound insulating chamber (10). ADVANTAGE - Range of applications of laser scanning microscopes is expanded by developing arrangement for rapid, non-destructive imaging of structures inside material using the photo-acoustic effect.
Patent DE-3926587-A1 (DE)
Title: Unloading chute for tipper section of vehicle - has two converging sidewalls, with outlet where they meet
Inventor: REBER PETER
IPC: B65G67/24
Filed: 1989-08-11
Abstract: The chute is used for unloading a gravel-like material from the tipper section of a vehicle. It has two converging sidewalls (1). An outlet (2) with a variable opening is fitted where the sidewalls meet. The distance between the free ends of the sidewalls is adjustable, so that the chute can be fitted to tipper sections of different width. USE/ADVANTAGE - Quickly and easily fitted to vehicle tipper sections of different width.
Patent DE-3928214-A1 (DE)
IPC: F23C9/00
Filed: 1989-08-25
Abstract: A burner with fuel gas recycling for free-flowing fuels comprises a combustion air inlet tube (1), a fuel nozzle (5), a connected mixing tube (6) and a flame tube (7) into which the mixing tube (6) extends. The flame tube (7), together with the wall of the mixing tube (6), delimits an annular space (11) through which fuel gas flows and which communicates with the inside of the mixing tube (6) through openings (12). The mixing tube (6) is designed as a funnel which widens in the flow direction. The wall of the flame tube (7) in the region of the mixing tube (6) is parallel to the wall of the mixing tube (6) and arranged at a short distance from the latter to form a narrow conical annular gap (11) through which the recycled fuel gases flow at high velocity, heating the mixing tube (6) to very high temperatures. As a result, the preparation of the fuel-air-fuel gas mixture in the mixing tube (6) is considerably improved.
Patent DE-3928556-A1 (DE)
Title: Sepn. of ammonia from gaseous mixt. with isocyanic acid - by addn. of tert. amine and condensation of adduct of isocyanic acid and amine
Inventor: STERN GERHARD DIPL ING DR
IPC: C01C1/12
Filed: 1989-08-29
Abstract: NH3 is sepd from a gaseous mixt of isocyanic acid and NH3 by adding a tert amine at 250-600 deg C, contacting the mixt with an inert diluent, and cooling when the adduct of isocyanic acid and tert amine condenses and the NH3 escapes as gas and is sepd. Addn of the amine is at 320-380 deg C. the amine is a cyclic amine or an amine of formula NR1R2R3, esp a trialkylamine, partic tri(m)ethylamine or triisopentylamine, in molar ratio of isocyanic acid:amine of 1:1-7. The diluent is an opt halogenated aliphatic or aromatic hydrocarbon, an ether, and/or a carboxamide, esp CHC13, toluene or N-methylpyrrolidone.  R1, R2, R3 = (un)branched alkyl, aryl, alkaryl or aralkyl. USE/ADVANTAGE - Isocyanic acid is a reactant for synthesis or organic cpds. A soln or suspension of a substd NH4 isocyanate (I) is obtd; (I) is more stable than isocyanic acid.
Patent DE-3935585-A1 (DE)
Title: Model-supported test system for electrical machines or drives - has electronic RPM counter without mechanical coupling matching output waveform of VCO to input waveform of PLL
Inventor: FILBERT DIETER PROF DR ING
IPC: G01P3/48
Filed: 1989-10-23
Abstract: A model supported test system for electrical machines or drives continuously monitors the revolution rate of the machine. A signal whose frequency is proportional to the motor's revolution rate is derived from the revolution harmonics in  the motor current or contact voltage using a phase-locked loop. The waveform of the output signal of a voltage controlled oscillator is matched to that of the PLL input. A further PLL is used for frequency synchronisation. USE/ADVANTAGE - Continuous electronic monitoring of electric motor revolution rates. Mechanical coupling of conventional revolution rate meter rendered superfluous.
Patent DE-4005933-A1 (DE)
Title: Rear projection lens assembly - has vertical corrugations in surface towards viewer and scatter layer on rear surface
Inventor: STECHEMESSER ERNST DIPL PHYS
IPC: G03B21/625
Filed: 1990-02-26
Abstract: The rear projection lens is made of transparent plastics. Its front surface towards the viewer has a vertical corrugated or grooved lenticular structure (2). The rear surface of the lens has a scatter layer (3), applied by spraying or casting, and containing scatter bodies, pref. of ground quartz. These can be embedded in the plastics. An anti-reflection coating (4) can be sprayed or cast onto the front lens surface. USE/ADVANTAGE - Simplicity, and low production cost of near projection lens for open-air film projector.
Patent DE-4010377-A1 (DE)
Title: Moulding sand recovery improving quality of sand - using thermal treatment and mechanical action to recycle sand with reduced energy consumption
Inventor: SPEKTOR ANATOLIJ ALEKSANDROVIC
IPC: B22C5/00
Filed: 1990-03-30
Abstract: To recover used sand from a casting assembly, for further use, the thermal treatment for the sand grains is applied at 310-900 deg. C. The sand grains are classified and worked mechanically in cycles with a grain movement speed of 5-50 m/s.  At least one of the cycles is in a watery medium, with a sand grain movement speed of 5-7 m/s. The sand grains are given a mechanical handling action in a watery medium after a thermal treatment at 310-490 deg. C. A mechanical action can be applied before and after the thermal treatment at 700-900 deg. C, using a watery medium before the heat treatment, and an air medium after the heat treatment at a grain movement speed of 30-50 m/s. ADVANTAGE - The method increases the quality of regenerated sand and reduces energy consumption and extends the life of sand used for hot box casting. It also reduces the losses of fresh sand, bentonite and carbon to save natural resources and transport while protecting the environment.
Patent DE-4011847-A1 (DE)
Title: Fixing bracket for electric switch e.g. vehicle door contact switch - is fitted to carrier in different positions to determine switch operating point
Inventor: POLIC MARKO
IPC: H02B1/04
Filed: 1990-04-12
Abstract: The fixing bracket (3) for an electric switch (4) inserted through a vehicle body panel is adjustable along the operating direction of the switch actuator (45), to determine the switch operating point.  The bracket (3) has 2 opposing insertion sides (5,6), either of which can receive the switch (4) and is attached to a carrier (1) in 2 alternate positions offset from one another by 180 degs., dependent on which side (5,6) is fitted with the switch (4). A series of identical guides (11) spaced apart along the operating direction of the switch actuator (45) allow the bracket (3) to be fitted to the carrier (1) in corresponding positions.
Patent DE-4015411-A1 (DE)
Title: Dual fuel gas engine - is driven by main and gases with cut=off valves and automatic pressure regulators in input pipes
Inventor: STELLWAGEN KARL
IPC: F02M21/02
Filed: 1990-05-14
Abstract: The main gas conduit (10) is connected to the engine (4), and feed pipes (11,12) for each type of gas (I,II) is connected to it. In each of these feed pipes, is at least one cut-off valve (1,2), and gas pressure is regulated automatically by a regulator (8,9). In the main gas conduit is a gas-air mixer (3). One of the two gas pressure regulators (8) is provided with an adjustment component (7) for variation of the pressure theoretical value. By continual throttling of the pressure of one type of gas, and continual pressure increase of the other type of gas in the main gas conduit (10), a gas is produced which in its composition is slowly altered, until only the second type of gas is present. USE/ADVANTAGE - To operate a gas IC engine using a main and a secondary gas, in which a changeover of gas type is possible without variations in load or speed.
Patent DE-4017752-A1 (DE)
Title: Circuit board - is of format to receive electronic HF transistor stage
Inventor: PFEIFFER CLAUS DIPL ING
IPC: H01L23/495
Filed: 1990-06-01
Abstract: A high frequency, HF, power transistor (2) is produced with a flat plate formed as connectors (3, 4, 5, 12) and with a flange with holes (13) for fixing to a surface. The transistor is connected to a circuit board (1) with a shape formed to match the transistor contacts. The board has contact surfaces (6, 7, 8) that are formed by slotted sections (11). The surfaces are metallised and allow soldered contacts to be formed. ADVANTAGE - Improved reliability of operator.
Patent DE-4020001-A1 (DE)
Title: Neural network circuitry with multiple inputs and single output - has loadable memory holding I=O relationship definitions
Inventor: BROCKMANN WERNER DIPL ING
IPC: G06N3/063
Filed: 1990-06-24
Abstract: A circuit for a neural network consists of several neuron circuits (N), each with several inputs (E) and one output (A).  Networl input signals are passed to at least one of the inputs of each neuron circuit and at least one of the outputs forms the network output. The contents of loadable memories (BT) in the neuron circuits represent a parameterisation defining the relationship of the output signals to the input signals at defined times. Neuron circuit input signals are combined to form a base index (BI) which is used to select a base cell entry for delivery to the output. ADVANTAGE - Short processing times. Widely applicable.
Patent DE-4025882-A1 (DE)
Inventor: BADUR KLAUS
IPC: G01M15/00
Filed: 1990-08-16
Abstract: 2.1 The undertaking of a so-called cold test for testing combustion engines is already known. This is carried out, however, only when the combustion engine is almost completely assembled and permits only two findings, that is that the combustion engine tested is either in order or not in order. Such a cold test does not meet the increasing quality requirements made of modern, high-performance combustion engines. In particular any faults are detected too late, which has an adverse affect on the economy of manufacture. 2.2 According to the invention intermediate function tests (18, 19) are carried out after one or more assembly stations (16, 17) in addition to a final function test. In this way any functional defects occurring can be detected in good time and by comparison with earlier measurements or master measurements precise findings can be arrived at on the nature of the defective function. 3. The procedure according to the invention is particularly suitable for the testing of combustion engines assembled on assembly lines (15), and also of gearboxes or the like. <IMAGE>
Patent DE-4028000-A1 (DE)
Title: Control device case in hollow pipe form - has rectangular cross=section with PCB holder and set of cooling fins in axial direction of pipe
Inventor: ITO EIJI
IPC: H05K7/14
Filed: 1990-09-04
Abstract: The control device case comprises a body (21) in the form of a hollow pipe having a substantially rectangular cross section. The body has a printed circuit board holding structure (21b) formed on an inner periphery thereof for holding a printed circuit board (22) on which an element which may generate heat is mounted. The body has a set of cooling fins (21a) formed in an axial direction of the pipe on an outer periphery thereof for radiating heat generated from the element. The opposite ends of the body in the axial direction are formed such that a first wall (21A) is shorter than the opposing second wall (21D). A pair of covers are mounted on the opposite end portions of the body and each has an opening formed therein such that a terminal block (23) mounted on the board (22) may be manually operated therethrough.
Patent DE-4028441-A1 (DE)
Title: SCroll decanter centrifuge with variable bowl-scroll speed -  utilising an ancillary variable speed electric pump, to provide constant flow, in the hydraulic control feedback circuit
Inventor: BRUENING PAUL DIPL ING
IPC: B04B1/20
Filed: 1990-09-07
Abstract: Drive unit for a continuous feed, horizontal, scroll type centrifuge having a main driving motor (4) providing belt drive (7) to the centrifuge bowl (2) which is united with an extension housing (8) formed with an internal peripheral gear ring (10), which together with the pinion wheels and carrier frame (13) (11) comprises a planetary gear thereby providing differential speed drive to the feedback loop is provided by hydraulic braking pump (17) which is rigidly attached to the inlet pivot shaft (16) of the planetary gear, and provides a pressurised fluid feed to a hydraulic motor (20) which has its rotor rigidly connected to the output shaft of the main motor (4), via hydraulic line (19), with the use of an ancillary variable speed electric motor drive hydraulic pump with output flow V111 feeding into line (19) so that the flow V1 from pump (17) can be compensated to provide the constant flow V11 demanded by the hydro motor (20), such that V11 = V1 + V111. USE/ADVANTAGE - The use of the variable speed electric pump in the control feedback hydraulic circuit allows continuously variable adjustment of the speed differential between the bowl and the scroll, and hence control of solids residence time in the centrifuge.
Patent DE-4028758-A1 (DE)
Title: Caravan etc. water tanks on seat hollow brackets -  have coupling hoses in lower parts and air vents in top parts
Inventor: FRICK EWALD
IPC: B60N3/18
Filed: 1990-09-11
Abstract: The water tanks are situated in the driver's cab of a caravan, comprising two separate, hollow brackets (3,4) to which seats are attached. A water tank (16,17) is contained in each bracket and both tanks are joined by a common hose (20) in their lower parts with air vents (20,24) on the upper sides. ADVANTAGE - Increased water holding capacity.
Patent DE-4035139-A1 (DE)
Title: Eccentric shaft slide piece - has equalising ring with spars, and rotary cam
Inventor: BRUCHER JOSEF
IPC: F04B3/00
Filed: 1990-11-06
Abstract: The eccentric shaft slide-piece has an equalising ring (1b) on the rotaty cam (1a) and which is rotated at the same speed in a contrary direction to produce a constant to and fro movement of the parts mounted on the outside of the equalising ring (1b). The eccentric shaft and the equalising ring have spars (2e & d) which equalise the centrifugal force of the to and fro movements and cause them not to vibrate by weighting the corresponding parts. ADVANTAGE - The eccentric shaft slide-piece with a rigid piston rod, instead of a crank shaft and connecting-rod, cause quiet running, need only gear-oil for lubricating the parts and have separate oil lubrication not needing to be replenished.
Patent DE-4041425-A1 (DE)
Title: Light conductor plug with pin spring-mounted in axial direction - is prevented from rotating by axial groove or rib corresp. to slidable ring of complementary profiling
Inventor: ZISSLER WOLFGANG
IPC: G02B6/38
Filed: 1990-12-21
Abstract: The plug pin (1) is non-rotatably held in the plug housing (3) to ensure a certain circumferential orientation. The outer circumference of the housing has an axial groove or rib (3b) that corresponds to complementary profiling (6a) of a slidable ring (6). This ring has a protruding nose (6b) at a certain point confirming the required circumferential orientation of the pin. The profiling of the ring can be in the form of a set of wedges. A circular spring (7) can be used to secure the ring on the front end of the plug housing. This spring fits partly in the circumferential groove of the latter and partly in the groove in the inner wall of the ring lying in the same plane. ADVANTAGE - Lowest possible attenuation.
Patent DE-4103115-A1 (DE)
Title: Tank gas exhaust system used when refilling - has storage vessel in gas and fuel pipes between tanks
Inventor: CURTIUS FRITZ
IPC: B67D7/04
Filed: 1991-02-03
Abstract: The system exhausts the gas-filled space from a tank when refilling from a storage tank and returns it to the latter. A gastight storage vessel (3) is mounted in the gas-return pipe (9) and liquid-supply pipe (4) between the tanks. In a first stage, the liq. flows from the vessel into the tank (1) to be replenished, gas being simultaneously exhausted from the latter by the vacuum and temporarily stored in the vessel. In a second stage, the vessel is refilled from the storage tank (2), the gas being expelled from the vessel back into the tank. ADVANTAGE - Full sealing against atmospheric pollution when refilling vehicle fuel tanks.
Patent DE-4116909-A1 (DE)
Inventor: HAALCK BOJE DR
IPC: B63B25/00
Filed: 1991-05-21
Abstract: The invention relates to a convertible freighter, the cargo space of which can be adapted to the cargo to be carried, which can be converted from a vessel with usual moulded depth to a vessel with raised moulded depth and thus helps reduce tonnage costs. According to the invention, the hatch covers in the vertical open position together with the external longitudinal walls of the superstructure (crossbeams) between the cargo spaces form an outer limit (outer skin) of the ship which is extended upwards. With the hatch covers open, the vessel has a great moulded depth or is a ship without hatch covers. In addition, according to the invention, the hatch covers can take the form of a folding type pair which can be stowed against one of the longitudinal sides of the vessel so that the ship has a great moulded depth on one side only.
Patent DE-4118108-A1 (DE)
Inventor: OBRIST BASIL
IPC: B23Q41/02
Filed: 1991-06-03
Abstract: The manufacturing plant comprises at least one manufacturing cell provided with at least one processing device, a handling device associated with the processing device in order to automatically exchange tools and/or workpieces on the processing device, and a magazine for the objects to be handled arranged in the reach of the handling device. The magazine is provided with a rotating rack having a plurality of storing planes mounted upon another on a support. The manufacturing plant comprises a plurality of such rotating racks. The rotating racks are designed as separate transportable constructional units which are exchangeably inserted in a stationary part of the magazine. The stationary part comprises means for rotating the rotating rack. The manufacturing plant further comprises a transfer station separate from the manufacturing cell for loading and unloading the rotating racks. Transporting means, e.g. at least one floor conveying truck, are provided for transporting the rotating racks between the transfer station and the magazine. The rotating racks can be automaticly exchanged and be unloaded and reloaded outside the magazine station. The exchange of the magazine can be effected without interruption of the manufacturing process. A plurality of manufacturing cells can be operationally linked by the transporting means which transmit the rotating racks farther from manufacturing cell to manufacturing cell.
Patent DE-4122545-A1 (DE)
Inventor: SCHALLES ERHARD
IPC: B23B19/02
Filed: 1991-07-08
Abstract: The workpiece spindle (6) of a lathe with a rotor (7) of a driving motor (11) arranged on the workpiece spindle (6) between the spindle bearings (4, 5) is designed in such a way that the workpiece spindle (6) can be installed in and removed from the head stock (1) without the need to remove the rotor (7) from the workpiece spindle (6). To this end, the spindle flange (12) is connected releasably to the workpiece spindle (6) and the workpiece spindle (6) is stepped at both ends in such a way that the inner races of the spindle rolling bearings (4,5) can be mounted from both ends. <IMAGE>
Patent DE-4122656-A1 (DE)
Title: Fire-resistant, transparent polycarbonate(s) - contain polycarbonate(s) with iso:octyl:phenyl and/or iso:nonyl:phenyl end gps. based on specific di:phenol(s) and alkali sulphonate fire retardant(s)
Inventor: KUEHLING STEFFEN DIPL CHEM DR
IPC: C08K5/42
Filed: 1991-07-09
Abstract: Branched aromatic polycarbonates with Mw 12,000-29,000 (by GPC) are claimed (I), based on diphenols (II), with iso-octylphenyl and/or iso-nonylphenyl end gps. and contg. alkali sulphonate fire retardant (III); (I) contain only diphenols of formula (II): X = 1-5C alkylidene, -S- or a single bond; R = Me, Cl or Br; n = 0, 1 or 2. Pref., (I) is 4,4'-dihydroxybiphenyl, 4,4'-dihydroxy-diphenyl sulphide or Bisphenol A; the end gps. are derived from 3.5-6 mol. % 8-9C branched alkylphenols as chain cleavage agents, and pref. chain branching agent is 3,3-bis-(4-hydroxyphenyl)-2-keto-2,3-dihydro-indole or the corresp. 4-hydroxy-3-methylphenyl cpd.; pref. (III) is K perfluoroalkane-sulphonate (with alkane = methane, ethane, propane or butane) or K diphenylsulphone-sulphonate, in amts. of 0.03-0.3 wt. %. USE/ADVANTAGE - Provides (I) with an ideal combination of good fire resistance, flow properties and transparency, and high impact strength, without incorporating special bis-hydroxyaryl-cycloalkanes in the diphenol component.
Patent DE-4125081-A1 (DE)
Title: Roller drive for video camera -  has mechanical interlock to control movement of recording drive roller during rewind
Inventor: PARK MO
IPC: G11B15/26
Filed: 1991-07-29
Abstract: A miniature video camera has a tape feed drive roller (6) and a recording drive roller (7).  Changeover between the rollers is effected by a contact roller (3) mounted at the end of plate (4) The plate (4) has a pulley wheel (2) around which a belt passes. The projecting end of the plate has a claw (20a) that can be moved to engage and idler gear wheel (21).  During the rewind of the tape the interlock is engaged to prevent rotation of the recording gear. ADVANTAGE - Prevents tape slackening due to tape direction change.
Patent DE-4128119-A1 (DE)
Inventor: BOERGER GOETZ-GERALD DR
IPC: B01D53/18
Filed: 1991-08-24
Abstract: The separation process and apparatus is based on conducting the explosive gas or vapour through a mass transfer column which is charged with an absorbent and filled with an electrically conductive packing. The packing (2) of the mass transfer column (1) must be earthed and have such a dense lattice spacing that no electric charge sufficient for ignition can accumulate at any point in the packing. Under these conditions, a non-conductive electrostatically chargeable liquid may be used as absorption liquid.
Patent DE-4129742-A1 (DE)
Inventor: RADDATZ SIEGFRIED DR
IPC: C07D409/12
Filed: 1991-09-06
Abstract: Quinolylmethoxyphenylacetamides substituted by heterocycles are prepared by amidation of corresponding carboxylic acids. The compounds can be used in pharmaceutical compositions, in particular with lipoxygenase inhibiting action.