baber/WOPTO huggingface dataset:
Patent DE-3808679-A1 (DE)
Title: Process for the preparation of 14,17 alpha -etheno-1,3,5(10)-oestratrienes
Inventor: LAURENT HENRY DR
IPC: C07J53/00
Filed: 1988-03-11
Abstract: In a process for the preparation of 14,17 alpha -etheno-1,3,5(10)-oestratrienes of the general formula I <IMAGE>  in which     R<1> is a hydrogen atom or a methyl or acetyl group and R<2> is a hydrogen atom, an acyl, preferably acetyl, group or a trialkylsilyl, preferably trimethyl or dimethyl-tert-butylsilyl, group,  compounds of the general formula II <IMAGE>  in which     R<1b> is a methyl or acetyl group and R<2b> is an acyl, preferably acetyl, group or a trialkylsilyl, preferably trimethyl or dimethyl-tert-butylsilyl, group and   x is 1 or 2, are reduced with an electropositive metal in a free electron solvating solvent and, where appropriate, subsequently ether groups are cleaved, acetyl groups are hydrolysed or free hydroxyl groups are acetylated.
Patent DE-3817606-A1 (DE)
Inventor: SCHALKE MANFRED
IPC: B67D7/06
Filed: 1988-05-24
Abstract: An apparatus for dispensing a liquid product, e.g. gasoline with a product supply pipe which is not readily accessible, e.g. buried, has a gas return line which is run through the product supply pipe by means of sealed inlet and outlet members connected to the product supply pipe.
Patent DE-3826920-A1 (DE)
Title: Installation device for sanitary washbasins
Inventor: SCHLINKMANN BRUNO
IPC: E03C1/322
Filed: 1988-08-09
Abstract: The installation device comprises a frame (10) which consists of a steel strip and can be fitted on the wall. At the top, threaded rods (12) are welded on the frame, such that they jut out therefrom, in order to suspend a washbasin. At the bottom a siphon bend (16) is held centrally on the frame and horizontal connection studs (21) of vertical copper pipes (20) for the supply of hot water and cold water are held in a clamp to the left-hand side and right-hand side of said siphon bend. In the region of the clamp, the pipes are enclosed by a shaped rubber part (30) for the purpose of sound insulation. The installation device, prepared as described above, considerably reduces the assembly times on the building site. <IMAGE>
Patent DE-3830820-A1 (DE)
Title: Steerable surfboard with stability due to roll-up handling lines
Inventor: ROTT GUENTER
IPC: B63B35/79
Filed: 1988-09-10
Abstract: Short description: the hull of the surfboard can be steered in any direction by the permanently joined daggerboard due to the suspension by the spherical (ball-and-socket) joint. The stability on the surfboard is achieved via the sitting bag, which can be rolled up automatically by means of handling lines. Unbalances of the hull and unevenness in the effect of the wind on the triangular sail are balanced by weight shifting onto the backrest and sitting bag. When tacking (going about), the maintenance of equilibrium is greatly improved by the automatic tensioning device of the backrest and sitting bag over the front (bow) of the hull.
Patent DE-3833837-A1 (DE)
Title: Applicator, especially for cosmetic products, with an applicator head of a foamed material
Inventor: FITJER HOLGER
IPC: A61F13/40
Filed: 1988-10-05
Abstract: It is proposed that the applicator heads of foamed applicators be made of a compressed foam.
Patent DE-3840951-A1 (DE)
Title: Supporting roller, in particular for belt conveyors or the like
Inventor: FRIEDL HEINZ-DIETER
IPC: B65G39/073
Filed: 1988-12-05
Abstract: The supporting roller (50), in particular for a belt conveyor or the like, has a cylindrical casing (52) which is supported on a shaft (62) via bearings (58). A protective cover (66) is arranged on the outer surface of the casing (52). The protective cover (66) is designed in the form of a flexible tube and is connected, in particular bonded, by its ends (68) in an air-tight manner to the roller casing (52). By way of a small tube which is guided into the space (80) between the roller casing (52) and the protective cover (66) and is closed with a valve (78), the space (80) can be expanded so that the protective cover is continuously subject to a milling procedure during running and caking-on of material is in particular prevented. <IMAGE>
Patent DE-3911894-A1 (DE)
Title: Gas filter
Inventor: KATO YOSHIHISA
IPC: B01D46/00
Filed: 1989-04-12
Abstract: In a gas filter, a ceramic composite body (10) has a multiplicity of gas through-holes (12). A glass sealing layer (11) is attached to an end surface of the ceramic composite body (10) on its gas outlet side. On the inside of each of the gas through-holes (12) is attached a fine-porous ceramic layer (13). A closure element is attached to an end-side face at the gas inlet side of the ceramic composite body (10). The closure element is produced from a fine-porous ceramic material, the pores of which are smaller than the pores of the fine-porous ceramic layer (13). The closure element has a gas passage channel at its end-side face on the gas inlet side so that the gas which is introduced through the inlet channel enters from the outside of the ceramic composite body (10) into the gas through-holes (12) (Fig. 1).
Patent DE-3919884-A1 (DE)
Inventor: DOERRIE HORST
IPC: H01Q9/32
Filed: 1989-06-19
Abstract: The invention is based on the object of developing a known rod- shaped radio antenna, which does not have an approximately circular omnidirectional characteristic when arranged obliquely, such that the antenna operates as an antenna with gain, with a largely circular characteristic, at an inclination angle deviating from the vertical by up to 40 DEG . 
<??>This object is achieved by an elastic rod (12) of dielectric material being fixedly connected to a spring element (11) and carrying a plurality of coils (SP1 ... SP4) and a radiating part (13). Together with the spring part (11), a first coil (SP1) which is electrically connected to the said spring part (11) has a first length L1 =  lambda /4. A second coil (SP2), connected to the first coil (SP1), has a length L2 =  lambda /4. A third coil (SP3) is wound running backwards from the end of the second coil (SP2) and has a length L3 =  lambda /8. A fourth coil (SP4) is wound from the end of the third coil (SP3) parallel to the second coil (SP2). A radiating part (13), having a length L4 = 3/8  lambda , is connected to the fourth coil (SP4). In this case,  lambda  is the mean operating wavelength of the relevant radio band. 
<??>A preferred area of application for the rod-shaped radio antenna is the Radio Network C of the German Federal Post Office. 
<??>The drawing shows a winding layout for the rod-shaped radio antenna. 
<IMAGE>
Patent DE-3920074-A1 (DE)
Title: Envelope with adhesive separable closures - has side flaps and sealing flap, each with corresp. adhesive and non-stick surfaces
Inventor: WEGENER MICHAEL
IPC: B65D27/14
Filed: 1989-06-20
Abstract: The envelope has side flaps (6,7) and a sealing flap (9), all formed as adhesive separable closures for non-destructive unfolding of the flaps into the blank form. The closures comprise one surface (10,14) of an adhesive layer and an opposing surface (11,12,13) of a printed or sprayed non-stick layer, such as a wax or silicon based material. USE - To enable envelopes bearing internal advertising printing to be simply unfolded without tearing.
Patent DE-3921420-A1 (DE)
Title: Magnetic sensor
Inventor: SHIGENO YOSHIHARU
IPC: G07D7/04
Filed: 1989-06-29
Abstract: A magnetic sensor is described for alignment of at least one detector unit, which has a magnetoelectric convertor element for converting magnetic data which are printed on a bank note, a security or the like into electrical signals and which is fitted in a slot provided therefor in series with a detector line by means of a screw element provided on a sensor housing. A non-magnetic head covering for covering the slot of the magnetic sensor which accommodates the detector unit is fixed to the sensor with the aid of claw regions which are engaged with slits provided therefor on the side face of the sensor housing, elastic or plug-in foot regions being provided on the head covering for plugging into the slits present on the sensor housing for receiving the covering, the slot receiving the detector unit being located between the slits.
Patent DE-3933816-A1 (DE)
Inventor: HORRY YVES
IPC: A47C23/06
Filed: 1989-10-10
Abstract: Bed base made of spring members (1) extending in the longitudinal direction and battens (2) laid across them, characterised in that fixing strips are connected to the spring members, which exhibit loops, slits or holes (3) to take the batten ends, and that devices to lock them are provided on the battens. 
<IMAGE>
Patent DE-3935190-A1 (DE)
Title: Cooling and lubrication system for tube rolling mandrels - in which two rows of nozzles parallel to mandrel axis sprays are retracted, slowly rotating mandrel with cooling fluid and lubricant
Inventor: STAAT KARLHANS DIPL ING
IPC: B21B25/04
Filed: 1989-10-23
Abstract: A process and device are described for cooling and lubricating a mandrel used during mfr. of seamless pipes by rolling in e.g, angled rollers. After rolling and shaping a hollow bar on a mandrel the seamless tube is removed, the mandrel retracted and before a further hollow bar is loaded cooling fluid and lubricant are sprayed onto the mandrel surface. Both sprays are arranged in rows parallel to the mandrel axis. When the mandrel is retracted, the first set of spray nozzles cover a strip of the slowly rotating mandrel with a cooling fluid which during rotation covers the entire surface area. Further mandrel retraction enables the second set of spray nozzles to repeat the operation with a lubricant. USE/ADVANTAGE - In a process for producing seamless tubes by rolling a hollow bar, lubricates the mandrel for product removal and removes heat caused by rolling. Stroke length of the mandrel is kept short and the use of a number of replacement mandrels is avoided.
Patent DE-3939053-A1 (DE)
Title: Skate board with drive - has retractable pull out cable operated by person standing on board
Inventor: DYKHOFF WALTER
IPC: A63C17/12
Filed: 1989-11-25
Abstract: The driven skateboard is operated by a person standing on the board and pulling on a cable which is looped round a wheel or axle of the board. The cable which is unwound with each pull can wind up again automatically at the end of the pulling action through spring force. USE - To speed up the board to provide muscle exercise.
Patent DE-4002514-A1 (DE)
Inventor: LAURENT MICHEL
IPC: C03C27/12
Filed: 1990-01-29
Abstract: A multiple glazing panel for a vehicle comprises at least two panes of glass (10, 12) and a sealing spacer between the or each pair of adjacent panes in which the sealing spacer comprises a flexible and malleable first element (22) in contact with both adjacent panes (10, 12) and providing a barrier to entry of humidity into the sealed space (16), and a second element (26) in contact with both adjacent panes (10, 12) and being at least partially formed of an adhesive having a modulus of elasticity greater than 1.4MPa (measured as hereinbefore defined). The first element may include thread 24. The first element may be of butyl rubber, and the second element of polyurethane. <IMAGE>
Patent DE-4007552-A1 (DE)
Title: Control system for circular saw - with accurate position monitoring of saw and with programmable saw movement for workpieces
Inventor: AMRATH HANS DIPL ING
IPC: B23D47/08
Filed: 1990-03-09
Abstract: The circular saw is mounted in a sliding support and slides to cut through the workpiece (2) and into the clamping piece (1). In order to optimise the cutting sequence the operator determines when the saw reaches the workpiece and when it has cut through the workpiece. Accurate position monitoring of the saw travel enables a simple programmable control to be set up for subsequent workpieces of similar dimensions. The control can be extended by programmed work cycles for predetermined workpiece sizes and shapes. The control returns the saw to the starting position at a rapid rate after each cut. ADVANTAGE - Fast throughput rate, programmable cutting cycles.
Patent DE-4011186-A1 (DE)
Title: Stop for car boot lid - can be positionally adjusted after fitting to lid
Inventor: MEYER DIETER
IPC: E05F5/02
Filed: 1990-04-06
Abstract: A stop for the lid of a car boot is attached to the inner wall (3) of the lid by a flanged fitting (1) secured by bolts (5). The fitting has an internal left hand thread (6) which receives a screwed bush (7). The stop (10) has a domed head (27) which is attached by a screw (12) to a split body (9). The screw (12), which has a right hand thread, has a pointed end which expands the body (9) so that it grips the bore of the bush (7). This feature enables the position of the stop to be adjusted in the axial direction after it has been fitted to the  lid. USE - Stop for car boot lid.
Patent DE-4013131-A1 (DE)
Title: Connection for primary coil of ignition coil - has terminal shaped to provide location for external connection plate
Inventor: BADAUD ERIC
IPC: H01F5/04
Filed: 1990-04-25
Abstract: An ignition coil assembly for use on vehicle IC engines has primary coils (2) wound on formers (3) that locate with secondary coil elements mounted on magnetic cores. Each end of the former has a projecting, rectangular section guide (42) that is used as part of a connection for the coil ends. The coil ends has a soldered lead (46,47) that sits in a groove. A metal terminal (80) has a blade (81) that fits into the guide slot (44) and has a formed end (84). A metal pressing contact strip (70) engages with the terminal. ADVANTAGE - Connections suited to automatic assembly process.
Patent DE-4016008-A1 (DE)
Inventor: BUECHL JOSEF
IPC: F02D11/10
Filed: 1990-05-18
Abstract: The proposal is for a throttle butterfly adjuster in which information can be mechanically transmitted from an initial transmission component by way of an intermediate piece (28) to a throttle butterfly actuator. However, the position of intermediate piece (28) is fixed in the normal operating condition and throttle butterfly (56) is actuated by a suitable electric motor.
Patent DE-4020076-A1 (DE)
Inventor: ROTH WALTER PROF DR
IPC: H01L21/336
Filed: 1990-06-23
Abstract: A process is disclosed for producing a PMOS-transistor (1) in a p-doped substrate (2). A n-doped trough (4) is produced by implantation, then by diffusion, the transistor (1) is insulated with a field oxide layer (14) and the transistor gate is produced by photolithographically patterning a layer. The photosensitive resist that remains from the gate etching by photolithographic patterning is used to mask the drain area at the extremity on the gate side, for at least one p<->-implantation. A falling edge to the surface of the drain area is generated in the layer of photoresist (22) at the gate edge (11). The falling edge deviates the flank (17, 19) of the implantation concentration profile (16, 18) towards the channel located under the gate area (12) when the implantation is introduced.
Patent DE-4030631-A1 (DE)
Title: Multiplexer with emitter-coupled bipolar transistors - uses two ECL gates exhibiting address, data and reference transistors
Inventor: FRIEDRICH DIRK DIPL ING
IPC: H03K17/62
Filed: 1990-09-27
Abstract: The multiplexer has two reference transistors (22, 23) coupled together at their collectors and connected to a supply voltage (VCC) via a resistor (26). Both their emitters are coupled via a respective transistor (10, 11) and resistor (12, 13) circuit to a second voltage (VSS), each of their bases coupled to a reference potential (VB1). Each reference transistor (22, 23) has an associated address and data transistor (20, 21; 25, 24), with their output circuits in parallel, coupled to the supply voltage (VCC) on the collector side and to the emitters of the referernce transistors (22, 23) on the emitter side. The address transistors (20, 25) are controlled by complementary inputs (A, bar A). ADVANTAGE - Reduced sensitivity to signal peaks.
Patent DE-4031915-A1 (DE)
Title: Cleaning of coolant-lubricants from wet-cutting machine tools - in automatically controlled filter belt with return to machine tool for reuse
Inventor: KNOLL JUERGEN DIPL ING
IPC: C10M175/00
Filed: 1990-10-09
Abstract: Plant is used for handling and/or purifying the coolant/lubricants, chippings, sludge and the like from wet-cutting machine tools. Appts. includes device for sucking material out of the machine tool and transferring it to a connected purifying plant. The suction arrangement is arranged as a tank (4) with a closure device (10) at the bottom for removal of all the material. This device can operate to suit the liquid level (18), and the material goes to the purifying plant (20). Variants include: tank (4) at an underpressure by a vacuum turbine, venturi nozzles or other arrangement; the closure (10) being a flap, slide or other device; and several other plant design variants. USE/ADVANTAGE - Earlier plant for dealing with this material entails constant manual attention and cleaning of the tank. The proposed plant is simple, largely maintenance-free and fully automatic. The purified/lubricant can be used again, so that there is a considerable saving in costs.
Patent DE-4032077-A1 (DE)
Title: Chemical works for batch operation - assembled from several modules and mobile processing tanks
Inventor: FUJII HIDETSUGU
IPC: B01J19/00
Filed: 1990-10-10
Abstract: A chemical works operating in batch prodn. has a process tank on a self-propelled carrier which can be attached to one of several process modules in turn and separated from them. Each module is fitted with the facilities required for one process stage of the desired prod.. Pref. the plant comprises a charging module(A), a stirring module (B), a prod. discharge module(C), a wash module(D) and processing tank units(R). Module (A) has raw material tanks, valves, piping with connectors and a manipulator. Module(B) has a drive motor, a stirrer and a transmission. Module(C) has a storage tank and a transfer system. Module(D) has a washing fluid tank with pump, valve, piping, coupling, waste fluid tank, coupling and piping.  The unit(R) is fitted with a reactor, a wheeled carrier, connectors stirrer, couplings, valve and piping. ADVANTAGE - This permits a quick adaptation to the fluctuations of the demand and the need for changes. It saves all piping and necessary reconstruction to meet such changes.
Patent DE-4036877-A1 (DE)
Title: Computer controlled drawing appts. - processes or handles object using carriages with drive belts and motors
IPC: G01D9/40
Filed: 1990-11-19
Abstract: An arrangement for making computer controlled drawings or for computer controlled processing or handling of objects contains an operating element on a carriage which is movable along a rail in an x direction. The rail is attached to a carriage which is movable along a further rail in a y direction perpendicular to the x direction. A motor (13) associated with the carriage and/or the operating carriage (8) drives a toothed belt via a gear wheel. The belt partially encloses the gear wheel and its reverse side is in contact with a press. roller. USE/ADVANTAGE - E.g. for plotter or photocopier. Significantly redued wt. and substantially better carriage drive.
Patent DE-4039489-A1 (DE)
Inventor: HOERMANSDOERFER GERD
IPC: B23Q27/00
Filed: 1990-12-11
Abstract: The invention concerns a special device for producing by machining a multiplicity of shaped bores or shaped external surfaces, such as squares, hexagons, ellipses, polygons. This is done by superimposing a forced radial motion, produced by purely rolling-action elements (12, 13, 14, 15), on the rotational motion of a tool holder (3) in such a way that the cutting edge of a tool (23) inserted in the tool holder (3) follows the required path as the tool holder rotates. Unlike other methods, such as broaching and floating-tool broaching as well as erosion machining and milling, the device proposed enables shaped bores and external surfaces to be produced not only cleanly and to the required tolerances, but also very rapidly and simply. The form drilling and turning device proposed can be used on normal drilling and milling machines and machining centres, as well as on turning machines with powered tools.
Patent DE-4107568-A1 (DE)
Title: Controlling reforming reaction for treatment of crude gasoline - by determining ratio of (dehydro)cyclisised and hydro-split paraffin(s)
Inventor: VOELKER UWE
IPC: C10G35/24
Filed: 1991-03-06
Abstract: Controlling a reforming reaction in the treatment of crude gasoline boiling at 320-470K, at 0.5-2.5 MPa and 730-830K in the presence of at least 70 vol% H2 is claimed. For controlling catalyst efficiency in all reaction zones, pref. in the last reaction zone, the ratio of paraffins converted by (dehydro)cyclisation and those produced by hydrosplitting is determined and compared using the equation APcycl+APHSP=constant (I) (Product 370-470K)APcycl is at least APHSP, (Product 320-410K)APcycl is at least n.APHSP (for n=3-4). APcycl = amt. of (dehydro)cyclisised paraffins; and APHSP = amt. of paraffins produced by hydrosplitting. Catalyst performance is adjusted by varying reaction temp. in the last reaction zone of the reforming process. ADVANTAGE - Activity and performance of a reforming catalyst is followed during reaction and any defects immediately recognised.
Patent DE-4107634-A1 (DE)
Title: Blower for air dispersal of particles - has attachment of lattice to air flow equalising plate
Inventor: SAIRANEN PERTTI
IPC: F15D1/08
Filed: 1991-03-11
Abstract: The blower installation for the air dispersal of particles comprises a blower (1), a blower horn (2), leading from an air chamber (4) and an air flow equalising plate (3). A lattice grating made of crosswise arranged plate strips (5) is fixed in the air chamber immediately behind the air flow equaliser. The width of the plate strips becomes larger the nearer the strips are to the central region of the equaliser. ADVANTAGE - Standardisation of the length of the dispersal air flow independently of the passage point of the air flow from the equaliser.
Patent DE-4111601-A1 (DE)
Inventor: SCHMIDT OSWALD
IPC: F16C17/10
Filed: 1991-04-10
Abstract: The invention provides a slide bearing for crank shafts of internal combustion engines, in particular, engines of automative vehicles. To achieve a defined lubricating film between slide bearing and crank shaft at manufacturing costs reduced compared to the state-of-the-art bearings, and to attain a precise axial guidance of the crank shaft, a dual-conical formation (3) is provided in the area of the radial slide face (2). Advantageously, the dual-conical bearing layer is applied to a steel beam which, in its turn, for taking up the axial forces, is held by means of lateral flanges (6) on the engine block and on the bearing cap of the engine.
Patent DE-4114233-A1 (DE)
Title: Ultrasonic flow measurement system - performs measurements in different diffusion directions and flow speed is determined from transit time difference using ultrasonic signal converters
Inventor: HILPERT JENS
IPC: G01F1/66
Filed: 1991-04-26
Abstract: The ultrasonic converters (1, 2) are connected to a transmitting pulse former (4) and a receiver amplifier (5) across a changeover unit (3). A gate circuit closes the signal circuit between the transmitting pulse former and the receiver amplifier. An assembly consists a counter (11), a gate (10) and an oscillator (9) and determines the signal transit time. A measurement cycle control (8) and a clearing circuit (12) are provided. A receiving signal identification circuit (15) is included, with which, emanating from a predetermined voltage control, the trigger threshold for the prodn. of the preliminary trigger signal is altered by the signal itself, across a dynamic threshold lowering (16). With the interface of the trigger threshold influenced by the receiving signal, with the receiver signal itself, across a comparator (17), a release signal is produced for the zero passage trigger (18). ADVANTAGE - With strongly disturbed flow, reliable measuring is possible. Also records faulty determination of impingement times to exclude generated measurement faults.