baber/WOPTO huggingface dataset:
Patent DE-3925645-A1 (DE)
Title: Optical imaging system for optical fibre splicing device - allows imaging in two perpendicular directions using at least one objective and 2 mirrors
Inventor: CANZEK LUDWIG DR
IPC: G02B17/00
Filed: 1989-08-03
Abstract: The optical imaging system uses 2 objectives (O1, O2) exhibiting a common subject plane (GE) perpendicular to their optical axes and a pair of mirrors (S3, S4) lying on the image side. Alternatively a single objective is used, with 2 mirrors lying on the object side of the latter, or with 4 mirrors lying 2 on the object side and 2 on the image side. Pref. the objective fulfills defined data for a given focal width and a light wavelength of 550nm. USE - For providing imaging in 2 perpendicular directions for optical fibre splicing device.
Patent DE-3928415-A1 (DE)
Title: Steel mfr. using direct redn. chamber - with heating tube system fed with combusted top gas and melting furnace off-gas
Inventor: WELLS WILLIAM
IPC: C21B13/14
Filed: 1989-08-28
Abstract: In steel mfr. by direct redn. of iron ore in a redn. chamber with recycling of top gas to the lower region of the chamber and passage of off-gas from a subsequent melting furnace through the chamber, the novelty is that the chamber is fed with a homogeneous mixt. of iron ore and coal which is heated by feeding the melting furnace off-gas and combustion gas in predetermined amounts to a heating tube system, located in and sealed from the chamber, the combustion gas being produced by combustion of the top gas in one or more combustion chambers. A redn. chamber for carrying out the process includes a heating tube system having stacked, vertically spaced arrays of co-planar, spaced, parallel tube sections. ADVANTAGE - The process allows steel prodn. in a simple, efficient and environmental-friendly manner even at relatively low annual prodn. rates.
Patent DE-3934887-A1 (DE)
Title: Deposition of thin magnetic films with constant thickness - uses sputtering method in which substrates perform specified planetary motions
Inventor: KUSUNOKI NAOKI
IPC: C23C14/34
Filed: 1989-10-19
Abstract: The active layers of a photomagnetic recording medium are deposited in a sputtering chamber using a metallic target electrode (16a) composed of a Rare Earth element (1a), pref.  Tb, a target electrode (16b) made of a transition metal (1b), pref. FeCo, and in which the substrates are suspended from supports (3). The substrates are rotated during depsn. and also the plate (4) holding the substrate supports rotates round an axis which is excentric wrt the substrates. The ratio of rotations per minute for the substrates and that of the plate (4) is 4 or more, pref. not a whole number. The substrate supports (3) are pref. coated before use with a dielectric film, pref. consisting of or containing Si-nitride. USE/ADVANTAGE - The planetary rotation method improves the evenness of the layer thickness, especially after depsn.  of several layers. This results in an improved performance of the device. The process is used for the mfr. of optical storage devices using Kerr or Fairchild effects.
Patent DE-3936832-A1 (DE)
Title: Hydraulic vehicle braking system - has two master cylinders connected by balancing pipe
Inventor: RUEHL UTE DIPL ING
IPC: B60T11/21
Filed: 1989-11-06
Abstract: The master cylinder system is for the hydraulic braking and steering system of a vehicle. It comprises a pair of master cylinders activatable independently of each other for the simultaneous braking of the vehicle and for steering assistance. A balancing pipe is connected to the balancing chamber (22) adjoining the pressure chamber (21) and a valve arrangement is formed by a sealing sleeve (7) on a switching piston (3) operable by the master cylinder piston (2). USE/ADVANTAGE - Twin master cylinder braking system in which the number of essential parts is reduced.
Patent DE-3939599-A1 (DE)
Title: Plastics branch pipe and concrete sewer - are connected by joint sealed with two-component adhesive applied by hand
Inventor: FUNKE GUENTER
IPC: E03F3/06
Filed: 1989-11-30
Abstract: The method is for connection of a house pipe toa  sewer pipe which is made of concrete (2) and lined with plastics (3).  A hole (5) is first bored in the wall of the concrete pipe and the exposed surface is coated with a two component adhesive. A branch pipe connection (6), which is made of plastics, is inserted into the hole (5) and pressed against the main pipe wall by a screw clamp (13).  Any gaps between the plastic pipe connection (6) and the concrete pipe and its plastic liner are filled with adhesive by hand. USE/ADVANTAGE - Waste water is prevented from coming into contact with bare concrete.
Patent DE-4002289-A1 (DE)
Inventor: BEHREND VOLKMAR
IPC: B63B19/16
Filed: 1990-01-26
Abstract: An arrangement is proposed for hoisting and transporting heavy objects, in particular a gantry for raising and transporting hatch covers on ships. The bridge forming the gantry is provided with travelling supports, on each of which two unilaterally supported levers are arranged, which can be raised by way of hydraulic cylinders. In the area of the free end of each lever a retractable and extendable bolt is provided which engages in a corresponding recess or an eye of the hatch cover. <IMAGE>
Patent DE-4002773-A1 (DE)
Title: Elastomer-covered roller prodn. - by assembling inner cylinder and cured outer elastomer tube with end plates and filling intermediate space with plastics or rubber
Inventor: SOLICH WILHELM
IPC: B29C70/84
Filed: 1990-01-31
Abstract: An elastomer-covered roller is produced which has a cylindrical core and an outer tube of cured elastomer, with a gap between them which is filled with a cpd. after sealing the ends with discs.  Once the outer tube is fixed on, a central cap is applied to each end so as to close off the intermediate gap; each cap has partly cylindrical ends and a rim whose i.d. matches the o.d. of the covering tube and fits over it; the cap has a central collar at the outer ends to fit the journal of the inner roller core and hence centre it; one cap has at least one hole at one end aligned with the gap concerned to allow the filling cpd. to be poured into the gap. The cpd. is a polymer or rubber. ADVANTAGE - The process is simple. The prod. has a uniform thickness elastomer layer but the process needs no spacers to produce this.
Patent DE-4003244-A1 (DE)
Title: Bridge circuitry for gas measuring appts. - connects catalytic active measuring sensor in one branch to catalytic inactive measuring sensor for heat change principle
Inventor: HOEHT WOLFGANG
IPC: G01N33/00
Filed: 1990-02-03
Abstract: The circuitry is for a gas measuring appts. for measuring and displaying combustible gases and vapours contained in air for two adjustable measuring systems. One system uses a measuring bridge operating on the heat and conductivity principle. The other system uses a measuring bridge operating on the absorption of heat principle. A measuring bridge (1) is provided for both systems. In one branch a catalytic active sensor (2) is switched to the catalytic inactive sensor (3) for the heat absorption principle. A further inactive measuring sensor (16) is switched in series with the inactive sensor (3) for the heat conductivity principle. Switching from one measuring system to the other is by means of a threshold value switch (13) and a following electronic switch (15) in such a manner that either the inactive sensor (16) is switched in and the catalytic active sensor (2) switched out or vice versa.
Patent DE-4005603-A1 (DE)
Title: Toggle angled lever transferring motion between shafts - comprises double lever with bush and bolt connection, piston-cylinder mechanism
Inventor: BICHLER FRANZ
IPC: G05G7/02
Filed: 1990-02-22
Abstract: A lever for transferring motion between control shafts of two devices with a fixed spatial relationship, consists of an angled lever (1) connected to one control shaft via a special connecting rod (24) and a second angled lever (2) with a restoring spring (38) and pivoting drive element (45). The levers are multiply angled, held mutually rotatably apart via a brush and bolt connection, have parallel parts and are held together via a piston-cylinder arrangement (10,11). The shafts can pivot in unison when the first shaft turns to convert linear to rotary motion and can reset the first shaft when the second shaft turns. USE/ADVANTAGE - Fuel injection pump for engine of motor vehicle. Lever is maintenance-free, functionally reliable and requires no alteration for different applications.
Patent DE-4006028-A1 (DE)
Title: Connecting bolt for machine elements
Inventor: ENGEL RICHARD LEO
IPC: F16B35/04
Filed: 1990-02-26
Abstract: Where the components are to be connected together in an assembly the bores (28,30) of each part (14,16) are in a straight line. A connecting bolt (10) has a shaft (32) with an enlarged section (34) and insert section (36). The enlarged section has a larger cross section than the bores. The length of this enlarged section (34) is such that the section extends through the bore (28) in one part (14) and through a sufficient axial section of the bore (30) in the other part to hold the parts together, whilst allowing easy release of at least the other part from the enlarged section. The enlarged section is pref. made of a deformable material to facilitate its insertion into the bores.
Patent DE-4006325-A1 (DE)
Title: Brush bristle active end processing - clamps bristle tufts at distance from active end, cuts them to size, and grinds active ends
Inventor: WEIHRAUCH GEORG
IPC: A46D1/04
Filed: 1990-03-01
Abstract: The brush bristle active ends processing starts with forming bristle tights and clamping them at a distance from the active ends. After cutting to size, the active ends are ground. The grinding is carried out by a surface, orthogonal to the bristle extension, whose all points move on circular tracks of identical dia. The bristle compression against the grinding surface is variable, and the bristles are supported at a variable spacing.
Patent DE-4007177-A1 (DE)
Title: Computer-controlled suspension for vehicle - uses sensors to monitor displacement, with programmed correction for damping valve
Inventor: ALTWICKER BERTHOLD
IPC: B60G17/018
Filed: 1990-03-07
Abstract: The dampers of the suspension are fitted with damping valves either integral to the damper, or external to it. The damping cross-section is varied by a processor control with a programmed reaction to the dynamic changes in the damping pistons. Sensors monitor the displacement of each piston and adjust the damping accordingly. The active suspension is controlled by the processor. The effective damping force required to control the displacement is computed and translated into cross-sections for the flow control valves. ADVANTAGE - Active suspension, improved ride, no sudden changes in suspension characteristics.
Patent DE-4011509-A1 (DE)
Title: Bidirectional, disconnectable semiconductor semiconductor component - has emitter regions of N plus doped N-type, and P-doped P-based layer
Inventor: BAUER FRIEDHELM
IPC: H01L29/745
Filed: 1990-04-10
Abstract: The component has a semiconductor substrate (4), bounded by two main surfaces (25, 26), between which are several differently doped layers. On the first main surface is a main electrode (1), as part of a first main terminal (HA1). One surface has a second main electrode (18), as part of a second main terminal (HA2). Under both electrodes are a number of doped emitter regions.  Short circuits (3, 6-8) for the emitter region are controlled by enrichment MOSFETs, just as second such short circuits (12, 14-16). The first emitter regions (5) are of plus + doped n-regions. An oppositely doped layer forms a p-base layer (8) of p doping. ADVANTAGE - No previously encountered limitations w.r.t. barrier voltage.
Patent DE-4015759-A1 (DE)
Inventor: OHKUMO HIROYA
IPC: F02P5/153
Filed: 1990-05-16
Abstract: The timing is based on a basic ignition timing and a learned correcting quantity including a large correcting quantity and a small correcting quantity both dependent on the presence or absence of knock. When the engine speed is higher than a predetermined value, the calculation based on the learning correcting quantity is stopped, and a small correcting quantity for high speed is selected dependent on engine speed and intake pressure from a memory which stores a plurality of small correcting quantities. An ignition timing for the high engine speed is calculated from the basic ignition timing, the large correcting quantity, and the small high speed correcting quantity.
Patent DE-4016368-A1 (DE)
Title: Double faced spray nozzle head
Inventor: BAUER THEOPHIL
IPC: B05B15/65
Filed: 1990-05-21
Abstract: Spraying head device for spraying liq. comprises two spray blocks (6) housing rows (2) of spray nozzles (3) held together by joining piece (8) and spaced apart by block (7) which can be easily replaced by another block of a different width.
Patent DE-4023037-A1 (DE)
Title: Fuel feed system for vehicle - has pump intake socket extending to bottom of fuel tank
Inventor: KOHLHAAS HELMUT
IPC: F02M37/10
Filed: 1990-07-20
Abstract: The fuel feed system is esp. for large fuel tanks in vehicles.  It has a suction pump, and a container, connected to the fuel return. The container interior is connected to the intake socket of the pump. The intake socket (7) opens into a tubular suction space (4) extending to the bottom of the tank (10).  The container (1) has a lower, nozzle-like outlet (13), which opens into the suction space, and is directed against the intake socket of the pump (6). USE/ADVANTAGE - Vehicle fuel feed system permits complete drainage of tank.
Patent DE-4023204-A1 (DE)
Title: 5-Chlorocarbonyl-5H-dibenz-(B,F)-azepine prepn.
Inventor: PALITZSCH PETER DIPL CHEM
IPC: C07D223/22
Filed: 1990-07-18
Abstract: Prepn. comprises (a) reacting iminostilbene in an inert solvent at 20-60 deg.C with phosgene; (b) liberating iminostilbene from the iminostilbene hydrochloride which forms in addn. to (I) by adding pref. aq. base; and (c) completely phosgenating the iminostilbene, maintaining acidic reaction conditions.
Patent DE-4023851-A1 (DE)
Inventor: HORN MICHAEL DR
IPC: C09D11/03
Filed: 1990-07-27
Abstract: Improved adhesion promoters based on titanium chelates are composed of isopropoxyalkoxytitanium bis(acetylacetonate) and are prepared by mixing diisopropoxytitanium bis(acetylacetonate) with dialkoxytitanium bis(acetylacetonate); alkyl = C2-4[2162] isopropyl; if appropriate with heating.
Patent DE-4024697-A1 (DE)
Title: Gas- and water-tight multi-sheet insulating glass - has outer and inner spaces, the latter being sealed with PVDc or a PVDc-treated cellulose-based material
Inventor: SIEGEL ROLF DR
IPC: E06B3/663
Filed: 1990-08-03
Abstract: Gas- and water-tight, multi-sheet insulating glass (I) is claimed, with at least 2 sheets of glass (A and B) and a profile spacer (C), bonded together in such a way as to form an inner and outer interspace. The novelty is that the inner cavity is sealed with PVDC or materials treated with PVDC, in the following manner: (a) the surface of (C) in contact with glass is provided with shaped PVDC (D) which, together with the device which is used to bond A/B and C together, forms a gas- and water-tight seal for the inner cavity, and/or (b) (A) and (B) are closely bonded together at the edges by material made of cellulose or a cellulose deriv. which has been treated with PVDC (E). (D) is PVDC film which is bonded flush with the glass-contacting surface of (C) by means of a PVDC soln., or a PVDC section which is adapted to fit the inner cavity and forms a mechanical seal, e.g. by folding into (C); (E) consists of absorbent paper or cotton strips which are stuck round the edges of (I), e.g. with epoxy adhesive, and then treated with PVDC soln., or a moulded profile which is stuck into the outer cavity, e.g. with epoxy adhesive, so as to fill it completely, and then treated with PVDC soln; (E) is treated with PVDC (aq. PVDC dispersion or a soln. of PVDC in THF-toluene) by brushing, spraying or dipping, followed by evapn. of solvent. USE/ADVANTAGE - The method provides multi-sheet insulating glass in which the inner space is permanently gas- and water-tight, thus preventing condensation due to ingress of water vapour and loss of insulation due to leakage of gas (Ar, SF6, etc.); the seal is relatively simple and inexpensive to produce, using known materials.
Patent DE-4027517-A1 (DE)
Inventor: SCHOLTA WINFRIED E
IPC: E01C5/00
Filed: 1990-08-30
Abstract: 2.1 Individual elements of paving stones or lawn grid stones can be pressed into the earth under high load because of their perpendicular contact surfaces. 
<??>In course of time, this leads to irregularities capable of causing accidents and pronounced soil compacting. 
<??>The new basic block elements, preferably produced from recycled plastics, prevent this by means of their oblique contact surfaces. 
<??>2.2 This is achieved by means of a shaping of the basic module which is open on one side, limited by side walls (S1, S, S2), rhomboid in longitudinal section (SF1 + 2) and polygonal and/or arcuate in cross-section. Additional slots, holes or grooves increase the load-bearing capacity and functionality as required. 
<??>2.3 Individual basic modules make it possible, by any combination and interconnection, to obtain a horizontal to a vertical consolidation of high load-bearing capacity of soils, at the same time with a possibility of planting, but also a free-standing, self-supporting space-lattice structure. 
<IMAGE>
Patent DE-4038746-A1 (DE)
Inventor: WISSEL HEINRICH DIPL ING
IPC: A62C3/00
Filed: 1990-12-05
Abstract: A sprinkler system for high rise shelf installations has at least one row (6, 8) of sprinklers (11) per shelf level, which sprinklers are arranged on sprinkler pipes (10, 12, 14, 16, 18) supplied via downpipes (34, 36, 38), to which fire-fighting water is fed through a pump (44) via valve stations (48, 50, 52, 54) and feed lines (40, 42, 44, 46). To reduce the outlay for construction and apparatus of such a sprinkler system and as far as possible guarantee sprinkler protection and electronic fire-alarm operation even in the event of failure of a valve station, the sprinklers of the superposed sprinkler rows of the shelf levels of one shelf or of a plurality of adjacent shelves are divided up horizontally into at least two separate sprinkler groups (20, 22, 24, 26) arranged above one another and each having at least one sprinkler row in the horizontal and/or vertical direction. The sprinkler pipes and the downpipes of a sprinkler group are horizontally interconnected. Only one feed line is provided per sprinkler group. <IMAGE>
Patent DE-4101861-A1 (DE)
Title: Molten glass droplets - are formed at bottom of vertical tube when vibrating frequency is supported to release glass flow
Inventor: KOENIG WILHELM
IPC: C03B7/08
Filed: 1991-01-23
Abstract: Appts. to hold molten glass for droplet working applies a vibrating frequency to the glass flow in a vertical feed tube, to bring it to a standstill. When the vibrating frequency is stopped, gravity gives a resumed glass flow, supported by a vertical movement of the feed tube against the force of gravity so that the molten glass forms a droplet at the bottom of the tube to be cut free. During the cutting action, the feed tube is moved downwards, in the direction of gravity, so that any projecting glass is drawn back into the tube and, simultaneously, the vibrating frequency is restored to maintain the molten glass column within the feed tube. The intervals between spearate glass droplet formations can be of different lengths, and the feed tube can be in different shapes according to glass types through changes in dia., of a conical passage. The fixed channel connected to the glass smelter can be closed by a slide against static pressure, either in the rhythm of the glass droplet formation of through the glass level control at the top of the feed tube. The channel and the feed tube can be heated, linked to droplet weight and vol., so that a constant droplet weight can be delivered through temp. control. ADVANTAGE - Operation gives glass droplets as required, without depending on a time cycle fixed by the viscosity of the molten glass, and eliminates waste through surplus glass flow
Patent DE-4102309-A1 (DE)
Title: Monitor and fault indicator in distribution network - has parallel optical fibres for signal transmission both ways
Inventor: TISCHER FRIEDRICH-CHRISTIAN DI
IPC: H04B10/08
Filed: 1991-01-26
Abstract: The monitoring and fault indicating system is for a distributor network with optical fibres. Along at least one transmission optical fibre at least one extra optical fibre (ZL1) is fitted which transmits to the central station (5) a signal appearing at least at one end point of the distributor network. Pref., the optical fibre (5) for the reverse transmission by-passes the branch points (V1, 2) of the tree network. A device can disconnect the central station transmitter on non-appearance of the reverse transmission signal. USE/ADVANTAGE - For laser utilising, multi-level transmission networks, with simple function monitoring, and transmit laser switch-off upon interruption.
Patent DE-4117003-A1 (DE)
Title: Definition of workpiece processing method - using standard models enabling decision to be made regarding processing elements specifications taking amount of local knowledge
Inventor: OUCHI SADAMI
IPC: G05B19/4093
Filed: 1991-05-24
Abstract: The method of automatically defining the machining processes of workpiece involves defining a number of standard component models, each corresp. to a number of workpiece machining patterns. A machining pattern is defined according to the selected component model and decisions are made about the processing elements and specifications for each process in the associated defined machining process pattern. USE/ADVANTAGE - Eliminates disadvantages of conventional methods and enables advantage to be taken of local knowledge in the machining shop.
Patent DE-4119404-A1 (DE)
Inventor: KOEPPLER HORST
IPC: D01H1/32
Filed: 1991-06-10
Abstract: The invention relates to a textile machine, in particular a drawframe or similar device for ensuring that a textile fibre lap is parallel and uniform. The invention is applicable to the processing of natural, synthetic and mixed natural/synthetic textile fibres loosely grouped together. The machine has several drives for individual functions. Common control is provided by a microcomputer which monitors the various drives independently of each other and controls them in accordance with a common control program. A control unit permits dialogue with the machine, as well as the display and modification of the control parameters.
Patent DE-4126001-A1 (DE)
Title: Magnetic tape cassette for dictation machine, telephone answering machine, etc. - has mechanism for counting rotating of winding spool for display in window on both sides of cassette housing using endless indicator tape
Inventor: STARKE JOHANNES
IPC: G11B23/087
Filed: 1991-08-06
Abstract: The cassette conforms to DIN 32750 part 1 and includes a gear wheel (2) which engages another gear wheel (3) in the free space over the tape spool (D). The latter gear wheel includes, in its axial direction, a worm drive (4) which engages a wheel (5) connected to a drive roller (6). The drive roller engages an endless indicator tape (7), which is fed through guides (8, 9, 10) within the housing, such that symbols on the indicator tape are visible in a window (F). ADVANTAGE - Exact indication of tape spool revolutions.