baber/WOPTO huggingface dataset:
Patent DE-4103940-A1 (DE)
Title: Finely-crystalline soldered joint for joining semiconductor chips to support - using solder foil, temp. of which is held just below the liquids after wetting support
Inventor: ALBRECHT HANS-JUERGEN
IPC: H01L21/60
Filed: 1991-02-07
Abstract: A process is disclosed for mfg. a mechanically stable, finely crystalline soldered joint, particularly for power electronics components. Amorphous, finely-crystalline or conventional solder materials are used. Soldering is carried out using a solder foil inserted between the metallic or metallised support and the metallised semiconductor chip in an inert gas atmos. The solder foil is applied as a previously-mfd. item to the support. The temp. in the plane of the joint is reduced to 20-30 deg.K below the liquidus of the solder, and held at this level for 10-40 seconds before the application of the metallised chip. After soldering, the complete joint system is cooled to room temp. at 20-28 deg.K/minute. Pref the solder is used in a rapidly-solidified, finely-crystalline form. The rougher side of the solder foil is placed in contact with the support. ADVANTAGE - The wetting of the components by the solder is improved, the chip/solder/support structure has few defects, and the fatigue strength of the joint is improved
Patent DE-4111761-A1 (DE)
Title: Friction wheel control gear with two friction wheels - has driven wheel, drive plate and driven axle, with holder containing compression spring
Inventor: GOEZ GUENTHER
IPC: F16H15/10
Filed: 1991-04-11
Abstract: The friction-wheel control gear has a pair of friction wheels (12, 16) performing the gear-reduction, by displacing the position of the driven wheel (16) in relation to the drive-plate (12). The plate disc's (12) surface is parallel to the driven axle (3). The holder (10) for the plate-disc moves axially in relation to the drive shaft (2). The plate's surface is pressed against the driven wheel (16) by means of a compression spring (15) in the holder. The shaft's rotations are transmitted to the drive-plate by means of toothed protuberances (9) fixed to the bearing pushing (5) and matching recesses on the underneath end of the holder. ADVANTAGE - The drive plate is movably mounted in relation to the drive shaft in an axial direction.
Patent DE-4112774-A1 (DE)
Inventor: GUNTHER DANIEL
IPC: A01F15/07
Filed: 1991-04-19
Abstract: 2.1. Traction-means conveyors (20) are used, for example on round balers, in order to convey crops by means of a plurality of traction means (22), in such a way that a spiral round bale (28) forms. Small fragments of the crop can pass through gaps between the traction means (22), become enclosed in chambers between two traction means (22) and lead to blockages. 
<??>2.2. The traction-means conveyor (20) is so designed that the traction means (22) are guided alternately via rollers (24) arranged offset relative to one another and further rollers (26), thus resulting, between offset and non-offset traction means (22), in gaps (46), through which the enclosed crop can escape. The further rollers (26) extend only over the width of the traction means (22) running off over them. 
<??>2.3. A traction-means conveyor (20) of this type can be used on round balers employed in agriculture. 
<IMAGE>
Patent DE-4119253-A1 (DE)
Title: Passenger lift control device with cabin load compensation - uses weighing device at base of lift cabin supplying signal added to torque command signal for motor
Inventor: IKEJIMA HIROYUKI
IPC: B66B3/00
Filed: 1991-06-11
Abstract: The lift control device has a velocity control stage (5) providing a torque command signal which is combined with a compensation signal calculated in dependence on the actual position of the lift cabin (10) and the supplied torque command signals. The base of the lift cabin (10) has a load weighing device (17), providing an output signal which is added to the compensated torque command signal, before being supplied to the transducer stage supplying the lift motor (19). ADVANTAGE - Accurate movement and stopping at each floor.
Patent DE-4123536-A1 (DE)
Title: Method for charging lead accumulator uses gaseous medium or mixing electrolyte - collected as escaping gas formed during charging operation and reintroduced in electrolyte liquid in cell for compensating density of sulphuric acid
Inventor: MITTERMAIER XAVER DIPL ING
IPC: H01M10/42
Filed: 1991-07-16
Abstract: The escaping gas collected during charging is returned under positive pressure to the electrolyte. The mixing gas is taken from the closed cell compartment (13) above the electrolyte. The system from carrying out the method has an air blow-in line inserted in the cell. Its blow-out opening is arranged in the lower region of the cell. The blow-in line is connected to a suction line (11), the sucking-out opening of which is positioned in the sealed gas collection compartment (13) above the electrolyte. A pump (15) is integrated in this circuit for returning the sucked out gas. ADVANTAGE - Improved charging operation of lead accumulator.
Patent DE-4125944-A1 (DE)
Title: Combination lock for briefcase - has rotatable discs with their faces parallel to face of lock housing
Inventor: KLEIN HELMUT
IPC: E05B37/12
Filed: 1991-08-05
Abstract: The combination lock for a briefcase has a number of rotatable discs (35) which are arranged with their faces parallel to the flat wall of the lock housing. Each disc (35) has a ring of numbers on one face and can be coupled to a locking disc (32) in a number of different positions to enable the lock combination to be changed. The locking disc (32) has a hub (31) which forms a bearing. Each locking disc (32) has a radial slot (49) which has to be aligned with the claw (28) of a slider so that the slider can be moved towards the axes of the discs to release the lock. The discs (35), on which the numbers are marked, have serrated edges to enable them to be easily rotated. USE/ADVANTAGE - Combination lock for briefcase has easily changed combination.
Patent DE-4126790-A1 (DE)
Title: Energy saving muffle baking oven with heating elements - has inner coated IR reflective enamel layer of spectrally selective electroconductive e.g. tin oxide, for heat loss redn.
Inventor: SILLMEN ULRICH DR
IPC: F24C15/00
Filed: 1991-08-14
Abstract: The oven is partially coated on the inside with an enamel layer comprising a spectrally selective substance (I) which is refelctive w.r.t. radiation. The (I) is e.g. sprayed onto the enamel powder layer and fired together with the enamel. (I) is an electroconductive metal oxide, esp. SnO2. USE/ADVANTAGE - The walls of the oven are insulated in the direction of the surrounding insulation, reducing energy consumption. The reflective coating passes visible light, and avoids a mirror effecto
Patent DE-4132875-A1 (DE)
Title: Housing unit for circuit board mounting for programmable controllers - has L=shaped sections with bridging plate forming section to accommodate circuit boards
Inventor: KLASCHKA WALTER DR ING
IPC: H05K5/04
Filed: 1991-10-03
Abstract: The unit is formed around extruded section elements (14,16) of  the same L shape. A bridging element (18) connects the two together and may of a width selected to suit. Inserted between the sections in a horizontal direction, a bus plane board (34) has connecting sockets (40) receiving the strip plugs fixed to circuit boards (36,38,46). A top cover (28) fits into recessed sections in the vertical side walls of the sections, and end plates (22) complete the assembly. ADVANTAGE - For mounting in 19 inch cabinet but allows size of module to be varied.
Patent DE-4134660-A1 (DE)
Title: Tractor 4-wheel drive switching control - responds to detected power direction for each drive axle to control switched couplings
Inventor: KAEMPF KLAUS DIPL ING
IPC: F16D48/12
Filed: 1991-10-19
Abstract: The 4-wheel drive switching control uses an evaluation circuit (20), receiving signals representing power direction for each of drive trains to 2 wheel axles and providing control signals for a switched clutch (7) between the drive (6) and the driven axle (4) for the steered wheels (5), or for switched clutches (7,8) between the drive and each drive axle (2,4). Pref. the switched couplings each incorporate a power direction switch, with the coupling disengaged when a negative power direction for the corresponding drive axle (2,4) is detected. ADVANTAGE - Improved drive traction. One drive axle is disconnected when danger of tension occurs.
Patent DE-4136387-A1 (DE)
Title: Controlling continuous cable colour marking - supplying nominal and actual spray jet pressure values to controller to regulate pump motor speed
IPC: B41J2/01
Filed: 1991-11-05
Abstract: The control method regulates the pressure used to spray colouring agent on a cable. Measured values (I) are compared with nominal values (5) using a controller (24) so that the speed of the motor (22) driving the pump (18) supplying the agent is adjusted. More than one pumping and spraying system can be used to apply markings of different colours, the sprays being oscillated continuously. The motor is an asynchronous motor with its speed controlled by a frequency converter. A proportional integral controller may be included. USE/ADVANTAGE - For cable cores with or without metal inserts, e.g. for fibre optic cables or control cables. Easy control of spacing of marking rings.
Patent DE-4136949-A1 (DE)
Title: Photoactive purificn. of water contg. organic impurities - by passing thin film of water over UV light source which contains wavelengths suitable for formation of ozone molecules and hydroxyl radical
Inventor: NIEDERMEIER ROSWITHA
IPC: C02F1/78
Filed: 1991-11-11
Abstract: A thin film of water is passed without addn. of reagents over a source of uv-light which contains wavelengths suitable for the formation of ozone molecules and OH-radicals. The oxygen content of the atmos. in the space between the water and the light source can be varied as required. A cylindrical or polyhedral reactor for carrying out the procedure comprises a housing, a water inlet, water outlet, water distribtuor, lower gas inlet, upper gas outlet and light source.The reactor may be surrounded by a chamber filled with a packing material. Part of the water flow is diverted through this chamber in which it is exposed to the gas flow over the extended surface area. USE/ADVANTAGE - Used for photo-oxidative purifcn. esp. of drinking and waste waters. Provides continuous procedure which does not involve separate production and dosing of additive components. Accelerates the break-down of pesticides, herbicides etc. and allows the water to be efficiently enriched with oxygen.
Patent DE-4137705-A1 (DE)
Title: Operating method for IC engine - involves staged piston limiting two separated combustion or compression chambers in a single cylinder
Inventor: PLATZBAECKER WILHELM
IPC: F02B75/16
Filed: 1991-11-15
Abstract: At least one piston (2) is movable in a cylinder (1), limiting at least two separated combustion chambers (5, 6), in which a load for combustion is simultaneously compressed by the piston movement. The load exchange for each combustion chamber (5, 6) is by means of their own load exchange components (51, 51a, 52, 52a, 61, 61a, 62, 62a), whereby at least one of the combustion chambers can be cut off. The load in one of the combustion chambers (5) is ignited by an already ignited load part quantity out of the other combustion chamber (6) via a controllable connecting channel (9). The piston (2) is staged and the inlet load exchange component of a combustion chamber (5) is formed as a lift valve (51a) and can be cut off. USE/ADVANTAGE - An IC engine with two combustion chambers with which either the one or the other is operable, and when required to maximise load both can be operated at the same time.
Patent DE-4138616-A1 (DE)
Title: Prepn. of acylated single carbon-hydrogen and cpds. - by acid deriv. in presence of calcium cpd., useful in prepn. of intermediates used in pharmaceuticals and plant protectives
Inventor: PREISS MICHAEL DR
IPC: C07C67/343
Filed: 1991-11-25
Abstract: Prepn. of ketones of formula (III) comprises reating a C-H acid cpd. of formula (I) with an acid deriv. of formula R4COX (II) in presence of a Ca cpd. of formula Can(R6)m (V). In the formulae R1-R3 = COOR', COR' SO2R', CN, NO2, halo or H; R' = alkyl; R4 = opt. substd. alkyl, cycloalkyl, alkenyl, alkynyl, X = a leaving gp.; n = 1 or 3; m = 1 or 2; R6 = halo, NO2, NO3, CN, SO4, BF4, S, PO4, ClO4 or R4COO. USE/ADVANTAGE - (III) are useful in prepn. of intermediates for use in prodn. of pharmacueticals and plant protectants. Reaction is quick and uses cheap and readily accessible Ca cpds.. Reaction takes place at 500m temp. in acetone (which is practically non-toxicds
Patent DE-4141208-A1 (DE)
Title: Motor vehicle road safety device using auxiliary direction indicators - has intermittently operated light source combined with each wing rear view mirror controlled by direction indicator lever
Inventor: URUSHIZAKI SAKAE
IPC: B60Q1/54
Filed: 1991-12-13
Abstract: The road safety device has pair of auxiliary direction indicators (3) combined with the wing rear view mirrors (2) at either side of the vehicle and controlled by the direction indicator lever (7) within the vehicle to provide an intermittent light indication. Pref. the combined direction indicator (3) and rear view mirror (2) have a transparent hollow housing containing a light source, attached to the vehicle wing via a mounting bracket (5), the reflective surface of the rear view mirror incorporating a vehicle velocity indicator for providing a speed check for the driver. ADVANTAGE - Provides clear indication of intended direction of vehicle for both pedestrians and other road users.
Patent DE-4141646-A1 (DE)
Title: Synergistic compsn. comprising nilvadipine and captopril - for treatment of hypertension, angina pectoris and coronary insufficiency
Inventor: HOFER JOSEF MAXIMILIAN DR
IPC: A61K31/44
Filed: 1991-12-17
Abstract: Pharmaceutical combinations with a synergistic action contain nilvadipine (I) and captopril (II) or their salts. (I) is 5-isopropyl 3-methyl 2-cyano -6-methyl 4-(3-nitrophenyl) 1,4-dihydro -3,5-pyridine dicarboxylate (DE2940833). (I) and (II) are present in separate pellets contained in hard gelatin capsules. Unit doses are 4-16 (esp. 8)mg (I) and 10-100 (esp. 50)mg (II). The (I):(II) wt. ratio is 1:2-20, esp. 1:4-10. USE/ADVANTAGE - The combinations are useful for treating cardiovascular disorders, esp. hypertension, angina and coronary insufficiency. Satisfactory reductions in blood pressure can be sustained over 24 hrs. at moderate dosages without significant side effect
Patent DE-4142423-A1 (DE)
Inventor: PFAENDLER HANS RUDOLF PROF DR
IPC: A61K31/42
Filed: 1991-12-20
Abstract: The invention relates to 1-oxapenem-3-carboxylic acids of the following structure: <IMAGE> in which R<1>, R<3>, R<4> and R<5> independently of one another denote pharmaceutically acceptable groups which are bonded to the remaining part of the molecule via carbon-carbon single bonds and which have one to 10 carbon atoms, and in which R<2> denotes H, alkyl or acyl having up to 10 carbon atoms or an inorganic acid radical. These compounds, and also their pharmaceutically acceptable salts, esters and amide derivatives, are particularly useful beta-lactamase inhibitors. The invention furthermore relates to pharmaceutical preparations containing these compounds and to treatment processes, as well as to processes for the preparation of such compounds.
Patent DE-4210099-A1 (DE)
Title: Dynamic chair with base joined to bottom of intermediate piece - has wedge inserted into widening gap between curved parts, seat and stop piece
Inventor: GLOECKL JOSEF
IPC: A47C9/00
Filed: 1992-03-27
Abstract: The dynamic chair consists of a base (1) to which is joined the bottom of an intermediate piece (2) consisting of a first, U-shaped sprung part (4) one arm of which is rigidly joined to the base and the other arm to a seat (3). A second curved sprung part (11)l inside the first sprung part, has a lower arm joined to the lower arm of the first curved part. A widening gap between the first and second curved parts takes a wedge (12) for adjusting the desired spring temper. The seat has a stop piece (7) extending down through a hole (15) in the second curved part (11) to restrict the seat tilt. The seat is mounted in the intermediate piece by a flexible membrane (6) acting as a resetting piece. USE/ADVANTAGE - The economically and simply produced dynamic seat allows the sitter to exercise his back muscles and intervertebral discs.
Patent DE-4212370-A1 (DE)
Title: Programmable model for process plant network - has I=O modules coupled via path networks contg. range of functions selectable to create system
Inventor: MIEBS JUERGEN DIPL ING
IPC: G05B19/042
Filed: 1992-04-13
Abstract: A modelling system for process plant operations allows the path of either liquid or gaseous material components from a number of different sources (B/l-B/n) to be directed via a network to other stages (B31, B3n). The stages may be in the form of intermediate reaction units that, in turn, connect to a second network with further output stages (B5l-B5n). Located between inputs and outputs, a number of component models forms a network facility. These may be in the form of pumps, valves, vessels etc. The interconnections between units may be programmed to provide specific needs. USE/ADVANTAGE - Improves programmable capability of process path modelling.
Patent DE-4214145-A1 (DE)
Title: Cooling device for gas laser - has cooling pipes contained in annular flow space in abutting spirals
Inventor: PROKOP HEINZ-JUERGEN DR ING
IPC: H01S3/041
Filed: 1992-04-29
Abstract: The cooling device has an annular space (14) with a rectangular cross-section through which the gas is passed axially. This space (14) contains cooling pipes (4,5) through which a cooling medium is passed, the height and wdith of its cross-section being a multiple of the pipe diameter (d). The cooling pipes (4,5) lie in two or more abutting spirals (2,3) coaxial to the annular sapce (14). Pref. the outsides of the cooling pipes are ribbed. ADVANTAGE - Efficient cooling with simple, low-cost mfr.
Patent DE-4214768-A1 (DE)
Title: Measuring, monitoring and controlling appts. for liq. level in container, esp. engine sump - has two lines connecting sump to reservoir container, one line with controlled valve opened after engine has stopped
Inventor: BERTHOLD RAINER DIPL PHYS
IPC: F01M11/06
Filed: 1992-05-04
Abstract: The container (1) is connected to a higher reservoir container (5) via two lines (4,7) so that no additional liquid can flow into the container for one liquid level (2). When the liquid falls to another level (3), liquid flows via one line (4) into the container until the downwardly curved line opening is closed by the liquid. One (4) of the two lines can be closed by a valve (6). The level regulation process only starts when the valve is opened following a delay after the engine is switched off. USE/ADVANTAGE - Esp. for controlling liquid level in sump of petrol or diesel engine using simple arrangement which simultaneously indicates its own functional state.
Patent DE-4215844-A1 (DE)
Inventor: WIDENHORN LEONARD
IPC: H02B13/035
Filed: 1992-05-14
Abstract: In the case of the multiphase switching system (1), each (for example L3) of the phase conductors is arranged in the course of a generator output line (2), which is arranged between a generator (7) and a mains power supply transformer (8), together with a switching apparatus, separated from the other phase conductors, in encapsulation (5) which is insulated by air gaps. This switching system should be able to cope with virtually all the switching, protection and measurement functions occurring in a generator arrangement, despite having a compact and space-saving construction. This is achieved in that the switching apparatus (three position interrupter switch 10) has at least two switching points. A first of these two switching points is arranged between the generator (7) and an output, which acts on the mains power supply transformer (8), of the switching system (1). A second is, in contrast, located between the generator (7) and a power connection (20) to a starting device (21) which is located outside the encapsulation (for example 5) and acts on the generator (7) when the first switching point is open and the second is closed. In the case of a generator arrangement which is equipped with such a switching system (1), it is possible to save a load interrupter switch or interrupter switch (circuit breaker) used for connecting power from the starting device (21) to the generator (7). <IMAGE>
Patent DE-4219426-A1 (DE)
Title: Impregnated cathode structure for CRT electrode gun - has sleeve with head region, contg. frusto-conical aperture with preset central dia.
Inventor: RHO HWANCHUL
IPC: H01J1/28
Filed: 1992-06-11
Abstract: The sleeve of the impregnated cathode structure has a head section with a frusto-conical aperture of preset dia. in its centre. Inside is formed oxide cathode material, matching the form of the sleeve with a tip protruding through the aperture. The oxide cathode material is retained in a receptacle, forming a part of the sleeve. A rear closure divides the sleeve inner space such as to form a space for the receptacle. Under the rear closure in the sleeve is fitted a heater. Pref. the sleeve is formed by welding a cylindrical body onto a frusto-conical cap. The protruding cathode material tip is caoted with a layer of platinum ions. ADVANTAGE - Maintains preset level of electron emission under high load.
Patent DE-4219622-A1 (DE)
Title: Former for hollow workpieces, eg barrels - has two axis-parallel forming tools, and forming roller with drive, located centrally between tools
IPC: B21D51/32
Filed: 1992-06-16
Abstract: The device processes several ends of eg barrels, simultaneously. The barrel top, base, and/or a ring, may be clamped in a forming tool, which is driven about an axis of the barrel. A forming roller is pressed against the clamped end by an advance drive. Two forming tools are located axis-parallel next to, and orientated relative to, each other. The tools are driven synchronously. At least one forming roller is located centrally between the forming tools, and movable by the advance drive. Due to this, both clamped ends of the barrel are formed, so that the tools together form a profiling plate.
Patent DE-4221924-A1 (DE)
Inventor: PEDAIN JOSEF DR
IPC: C08G18/42
Filed: 1992-07-03
Abstract: A water-soluble or dispersible urethane group-containing polyisocyanate mixture containing blocked isocyanate groups and having a mean functionality of from 2.0 to 2.6, the use thereof in combination with water-soluble or dispersible polyhydroxyl compounds for the preparation of water-borne stoving (baking) finishes (coatings, paints, enamels, lacquers), and to a water-borne stoving finish whose binder comprises a combination of (a) a polyhydroxyl compound of this type based on selected starting materials with (b) a blocked polyisocyanate according to the invention.
Patent DE-4222355-A1 (DE)
Inventor: SCHMALZ KURT DR
IPC: B66C1/02
Filed: 1992-07-08
Abstract: Gripper apparatus for gripping by suction and raising discrete articles in the form of one or more objects has a suction box (2) which can be placed on the discrete articles and which can be connected to a reduced pressure apparatus and which has on its side edges air-impermeable curtains (4). Simple manipulation of the discrete articles is achieved in that the position of at least one curtain (4) of a side edge is alterable horizontally and/or vertically especially by means of actuators 13. Preferably the actuators are operated together by a central, star-shaped drive. Preferably the vacuum for individual articles is controlled by rakes with push rods opened by the presence of an article. <IMAGE>