baber/WOPTO huggingface dataset:
Patent DE-3734741-A1 (DE)
Title: Device for camber-grinding the ends of plug connectors or optical waveguides
Inventor: ODEMAR NORBERT DIPL ING
IPC: B24B19/22
Filed: 1987-10-09
Abstract: The ends of optical waveguides which are to be connected by a plug-in connection can be ground to have a camber on their end face, i.e. to be convex, in order to achieve a low coupling attenuation and low reflections. The camber-grinding can be carried out by pressing the end of the optical waveguide against a rubber membrane (10) supplied with an abrasive (15) and moving it perpendicularly to the press-on direction. Owing to the press-on force, there forms in the membrane (10) a concave shape which, during the grinding, is to form the end face of the waveguide into a convex shape. The object of the invention is to provide an appropriate device having a membrane (20, 24) which is easy to manufacture, is variable in its hardness and consists of a rigid material. The object is achieved according to the invention in that the membrane (20, 24) consists of a spring-steel foil (20) which, by means of a double-sided adhesive tape (24), is bonded onto a supporting plate (30) of a solid material, which can have an opening (31) in the region over which the end (21) of the optical waveguide is moved during the grinding operation. Production of optical-waveguide connections. <IMAGE>
Patent DE-3735591-A1 (DE)
Inventor: RUF ERICH DR
IPC: C03C17/25
Filed: 1987-10-21
Abstract: The preparations contain, as base compounds, tin(IV) chlorides optionally containing organic groups, and a fluorine-containing dopant, and have been prepared by dissolving
 from 27.5 to 89.5% by weight of tin(IV) chlorides optionally containing organic groups and
 from 0.5 to 5.0% by weight of tin(II) fluorosilicate in the form of an aqueous 30 to 50% strength by weight solution in
 from 10 to 67.5% by weight of a polar organic solvent,
 and, if necessary, filtering off the precipitated silica. 
<??>The preparations according to the invention are simple to handle industrially. Their effective constituents are readily accessible and inexpensive chemicals. They allow the production of surface coatings on glass or glass ceramic with particularly low surface resistance.
Patent DE-3740445-A1 (DE)
Inventor: SCHMITT WALTER ING GRAD
IPC: G01D5/26
Filed: 1987-11-28
Abstract: In such a position measuring system for measuring the relative position between two objects, the division (T) of a division carrier (M) is scanned by a scanning device (A) for generating two periodic scanning signals (Sa, Sb). These two periodic scanning signals (Sa, Sb) are supplied, on the one hand, to an evaluating device (W) for forming measurement values for the relative position between the two objects and, on the other hand, to an error detection device (F) having two trigger stages (TSa, TSb) for generating an error detection signal (FS) when the amplitude levels of the two scanning signals (Sa, Sb) are faulty. As the scanning speed of the scanning device (A) increases, however, the amplitude levels of the two scanning signals (Sa, Sb) decrease so that these amplitude levels can drop below the trigger thresholds of the two trigger stages (TSa, TSb) at high scanning speeds; the error detection device (F) outputs an error detection signal (FS) even though correct scanning signals (Sa, Sb) are still present. To avoid such an error message, the two trigger threshold voltages (TSSo, TSSu) can be regulated in dependence on the scanning speed for setting the two trigger thresholds of the two trigger stages (TSa, TSb). <IMAGE>
Patent DE-3800561-A1 (DE)
Title: Circular saw blade
Inventor: INAGAKI MASAHIRO
IPC: B23D61/02
Filed: 1988-01-12
Abstract: The subject of the invention is a circular saw blade with a base body (2) in the form of a circular disc and a plurality of cutting tips (10a) which are assigned to the circumference of the base body at a uniform distance from one another. Each cutting tip has a front face, the width of which continuously increases from the inner to the outer end of the cutting tip and the outer side of which cutting tip forms an arc-shaped cutting face, the centre of curvature of the arc lying on the line of symmetry of the increase in thickness of the front side. <IMAGE>
Patent DE-3801061-A1 (DE)
Title: Apparatus for cleaning pipes
Inventor: RIGHI EDUARD
IPC: B24B29/08
Filed: 1988-01-15
Abstract: In order to clean pipes of swarf or similar particles, an apparatus which allows working in cycles irrespective of the pipe length is to be provided. In addition, the apparatus to be provided is to be easily adaptable to the respective pipe diameter. The apparatus for cleaning pipes comprises a cleaning cartridge (1), which is operated for example by means of compressed air through the pipe (6) to be cleaned. The cleaning cartridge bears a cleaning ring (5) and a gasket (8). The cleaning cartridge (1) is introduced into the pipe to be cleaned by a feeding unit (2) and, after passing through the pipe, is received by an accepting station (3) and returned for further use by means of a return station (4). The cleaning of pipes of swarf or similar particles. <IMAGE>
Patent DE-3802662-A1 (DE)
Title: Phase-controlled antenna
Inventor: SOLBACH KLAUS DR
IPC: H01Q3/44
Filed: 1988-01-29
Abstract: For a phase-controlled antenna having one or more rows of radiating elements, the rows of radiating elements are designed as waveguide-slot antennas, in the case of which probes which couple to the waveguide wave are arranged in the waveguide, via which probes the waveguide is loaded, at the location of the probes and by means of switchable diodes, with a variable susceptance. Switching over the diode produces a phase shift. Despite there being a small phase shift in a single phase-shifting element formed by a probe and diode, considerable lobe pivoting can be achieved by a large number of elements and summation of the phase shifts of the series phase-shifting arrangement. The combination of phase shifters of extremely small size with the waveguide-slot antenna of simple construction results in a cost-effective, space-saving and weight-saving antenna with electronic beam pivoting in two dimensions, while maintaining the frequency agility and capability for multi-function operation.
Patent DE-3809207-A1 (DE)
Title: Device for recording and/or replaying a video signal
Inventor: SHIROCHI YOSHIKI
IPC: H04N9/86
Filed: 1988-03-18
Abstract: In this device, a pair of line-sequentially transmitted colour subcarrier signal components are recorded in each case in each second group of two fields delayed by one horizontal period for the purpose of colour alignment, and during the replaying a pair of colour subcarrier signal components not delayed during the recording, of in each case each second group of two fields are delayed by one horizontal period, pilot signals having four different frequencies which alternate sequentially and cyclically in four successive helical recording tracks are used as identification signal of the said groups of two fields for colour alignment, so that the reproduced colour subcarrier signal components in each second group of two fields can be delayed in correspondence with the colour subcarrier signal components not delayed during the recording and thus a vertical "vibrating" of the replayed image can be prevented. <IMAGE>
Patent DE-3811257-A1 (DE)
Title: Apparatus for sealing the openings of buildings
Inventor: LADWEIN BERNHARD
IPC: E06B9/00
Filed: 1988-04-02
Abstract: In particular in the event of floods, openings on buildings have to be closed off rapidly. The invention consists essentially in the fact that a sheet-like element is provided, which is a loose frame which can be positioned in the opening and has a filling, and the frame is provided, on the outer border, with inflatable seals. The advantages achieved therewith consist essentially in the fact that building openings can be sealed off by a small number of manipulations and the means for sealing can be used again and again.
Patent DE-3811879-A1 (DE)
Title: Direction-finding arrangement
Inventor: UHLMANN MANFRED DIPL ING
IPC: G01S3/34
Filed: 1988-04-09
Abstract: In the case of a broadband (wideband) non-selective direction finding arrangement having crossed-over double-circle polar diagrams, in the case of which arrangement the direction-finding information is obtained by comparing the logarithmic video altitudes of the two direction-finding voltages, unambiguity of the direction-finding angle, which has four possible values when initially determined, can be achieved by quadrant assignment. To this end, signal elements are extracted from the direction-finding voltages before rectification and are compared with an azimuth-independent omnidirectional voltage in phase discriminators. A logic circuit evaluates only the polarity of the output voltages from the discriminators in order to emit a two-bit digital word as the quadrant identification, so that phase discriminators of simple design can be used.
Patent DE-3814984-A1 (DE)
Title: One-part safety hook for clothes hangers
IPC: A47G25/14
Filed: 1988-05-03
Abstract: The one-part safety hook made of elastically deformable material for securing different types of clothes hangers on washing lines of different thickness is an innovation in its function. On one side, approximately in the centre, a rounded-off introduction opening (1) is present, which opens into a seven-stage radius pattern (2-8) which runs upwardly in a V-shaped manner. Through this introduction opening, it is possible to introduce a washing line of any thickness in such a manner that it engages in the radius pattern corresponding to its thickness and lies there so as not to be displaced or lifted out (even in high winds). If an item of laundry or garment is then to dry or air on the line by means of a clothes hanger, the bow of the clothes hanger is pushed through the round passage (9) provided therefor or the unequal-sided triangular passage (10), in which the side lengths (10a, 10b) are longer than the base surface (10c). It is envisaged for larger (thicker) clothes hangers. This one-part safety hook described above guarantees that items of laundry or garments hung up by clothes hanger are no longer blown or torn to the ground by the wind and consequently are not dirtied. <IMAGE>
Patent DE-3816297-A1 (DE)
Title: Angle of rotation measuring device
Inventor: ZIMPRICH HANS-JUERGEN DIPL ING
IPC: F02B77/08
Filed: 1988-05-13
Abstract: The adjustment of the start of fuel delivery of a piston internal combustion engine has hitherto been complicated and relatively inaccurate. The solution consists of a device with an electronic angle of rotation measuring instrument with digital display, which before measurement on the engine is zeroed in to the top dead centre position of the cylinder (1) by means of a master plate and which on the engine engages without play in a bore (11) of the crankshaft end (20) and in a bore (9) of the crankcase (10). The invention is suitable for all piston internal combustion engines with injection pump. <IMAGE>
Patent DE-3816835-A1 (DE)
Title: Profile strip for fastening to a motor vehicle
Inventor: SCHULZE HARTMUT
IPC: B60J10/35
Filed: 1988-05-18
Abstract: A profile strip (1) is composed of an elastic rubber basic body (3) and of an adhesive strip (7) which is bonded to the convex supporting side (6) of the said basic body (3). The supporting side (6') of the said adhesive strip (7) is also convex and is provided with a self-adhesive layer, so that when bonding between the adhesive strip (7) and the supporting part (2) is established, the air is pressed outwards, ensuring that no air is trapped. <IMAGE>
Patent DE-3819260-A1 (DE)
Title: Hydraulic valve
Inventor: FEICHTENBEINER HEINER DIPL ING
IPC: G05D7/03
Filed: 1988-06-06
Abstract: Hydraulic valves working as a function of pressure and having a piston (10) which forms an adjustable limit of a flow passage and has a control surface to which pressure prevailing in the flow passage can be admitted exhibit a deviation from the predetermined, pressure-dependent working behaviour during increasing choking of the flow. This is disadvantageous during flow control, because the controlled flow decreases during increasing inlet pressure. The novel hydraulic valve is intended to work without this deviation. In order to work purely as a function of pressure, a baffle shield (S) fixed relative to the piston (10) as regards the chamber is provided in the hydraulic valve. The baffle shield (S) has at least one baffle surface (25) which is arranged between the control surface (20) and a connection near the control surface in such a way as to face the connection. The baffle surface (25) keeps forces resulting from the flow dynamics away from the control surface of the piston. The hydraulic valve is suitable in particular for flow control (feed control) in the speed control of consumers. <IMAGE>
Patent DE-3823934-A1 (DE)
Title: Process for producing an ethylene polymerisation catalyst and ethylene polymerisation process
Inventor: QUIJADA ABARCA JUAN RAUL
IPC: C08F110/02
Filed: 1988-07-14
Abstract: Described is a production process for a catalyst based on a carrier (support) with a specific aluminium oxide modified with varying amounts of magnesium chloride. A higher proportion of MgCl2 results in a lower proportion of chains having a high molecular weight in the end polymer. The carrier produced by grinding the specific aluminium oxide with MgCl2, previously treated with ethyl benzoate, is impregnated with TiCl4 to prepare the catalyst. The resulting catalysts have a high activity, which renders the step of removing metal residues and chloride from the resulting resin unnecessary. In addition, the types of molecular weight distribution and the mechanical properties of the polymers produced differ.
Patent DE-3827303-A1 (DE)
Title: Monitor with lockable tilt device and rotation device
Inventor: TREY KARL
IPC: F16M11/12
Filed: 1988-08-11
Abstract: A device for the acceptance of a terminal or similar office device has a carrier plate (11) of spherical surface shape carrying the terminal, which is arranged on a carrier element (12) so as to be rotatable and pivotable. For locking the terminal both in the horizontal and in the vertical direction, a single clamping screw is arranged which is guided in a slot (22) of the carrier element. The clamping screw clamps the carrier plate (11) by means of a wing in a guide of a clamping piece (15), the clamping piece (15) likewise supporting itself rotationally securely on the carrier element (12). <IMAGE>
Patent DE-3828579-A1 (DE)
Title: Method for the filtration of waste water (effluent) treated in sewage treatment plants and apparatus for carrying out the method
IPC: C02F3/10
Filed: 1988-08-23
Abstract: The invention relates to a method for the filtration of waste water treated in sewage treatment plants and an apparatus for carrying out the method. The waste water is first fed to a filter through which flow passes upwards and the waste water then flows through a filter through which flow passes downwards. In the filter through which flow passes upwards, air is constantly fed to the water flowing through. This filter is designed as a flooded fixed-bed reactor. Complete nitrification and elimination of suspended matter proceed. Phosphate precipitation can be carried out. The filters are cleaned by backwashing with a mixture of clean water and air.
Patent DE-3841978-A1 (DE)
Inventor: POLZIN NORBERT DIPL ING
IPC: B60W30/18
Filed: 1988-12-14
Abstract: In a process for detecting the intention of a driver to start a stationary motor vehicle, the variation in engine speed is monitored when the accelerator is actuated, i.e., when the fuel feed increases, and the intention to start is detected when these variations lie with a certain range.
Patent DE-3843712-A1 (DE)
Title: Titanium boride ceramic material and process for the production thereof
Inventor: SAITO HAJIME
IPC: C04B35/58
Filed: 1988-12-23
Abstract: A sintered titanium boride ceramic body consists essentially of a matrix which has a three-dimensional network structure and consists essentially of TiC and at least one metal boride of transition metals in the form of mixed crystals and solid solutions, TiB2 particles which are present in the matrix in separated (isolated) form, and a grain boundary which is formed in the boundary surface (periphery) of each TiB2 particle. The grain boundary is present in the form of mixed crystals and solid solutions of TiB2 and metal boride. M denotes a metal.
Patent DE-3903760-A1 (DE)
Title: Snow-catching element
Inventor: WIELAND HEINZ
IPC: E04D13/10
Filed: 1989-02-09
Abstract: A snow-catching element comprises a profile piece which is bent approximately in the form of an L. It is fastened on one of the two L-legs. In order to prevent deformation, provision is made for reinforcement devices which act between the legs. In order to fasten the snow-catching element, use is made of a fastening member which exhibits a threaded portion on which one leg is fixed between two nuts. The snow-catching elements are fastened on a pitched roof surface by means of said fastening members.
Patent DE-3904293-A1 (DE)
Title: Area weapon
Inventor: SCHON GUENTER
IPC: F42B23/16
Filed: 1989-02-14
Abstract: An area weapon, preferably for ranges up to several hundred metres, is characterised in that a plurality of preferably pre-loaded barrels are arranged in a base body in such a manner that the longitudinal axes of at least two of the barrels run at an angle other than 0@ relative to one another, and in that firing elements for ammunition arranged in the barrels are provided in the base body. In consequence, a high fragmentation effect can be achieved at the target and terrain obstructions can be overcome.
Patent DE-3906286-A1 (DE)
Title: Ceramic microwave filter having aperture-coupled ceramic resonators with steepened resonance curve
Inventor: KELDENICH HANS-DIETER DIPL PHY
IPC: H01P1/205
Filed: 1989-02-28
Abstract: A ceramic microwave filter (1) having short-circuiting capacitors C1, C2 for increasing edge steepness. The short-circuiting capacitors C1 and C2 are constructionally integrated into the microwave filter (1).   <IMAGE>
Patent DE-3921959-A1 (DE)
Title: Electricity motor measurement mechanism carrier attachment arrangement - attaches metal carrier to thermosetting plastic plate using self-tapping screws
Inventor: FRITSCH RAINER DIPL ING
IPC: G01R11/04
Filed: 1989-07-04
Abstract: An attachment arrangement for the measurement mechanism carrier of an electricity meter has several bolt positions for equalising movement differences.  The carrier (2) is clamped to a shaped thermosetting plastic base plate (1) at one bolt position (3) and has two defined supporting points. The carrier, which has through-holes, is displaceably attached at a second bolt position (4).  The bolt positions consist of self-tapping screws (5) suitable for thermosetting plastic which are screwed directly into the base plate. ADVANTAGE - Ensures satisfactory attachment of a metal carrier to a thermosetting plastic base plate economically and using few parts.
Patent DE-3922781-A1 (DE)
Inventor: RIEGER BERNHARD DR
IPC: G02F1/1341
Filed: 1989-07-11
Abstract: The invention relates to a process for filling a liquid crystal display having a homoeotropic edge orientation with a liquid crystal medium in which an electric or magnetic field is applied during filling.
Patent DE-3923781-A1 (DE)
Inventor: YAHAGI TOSHIO
IPC: B60T8/64
Filed: 1989-07-18
Abstract: In a method of anti-lock brake control, in which when the wheel is about to become locked, control valve means 12, 14 capable of controlling a de-braking pressure for a brake device B is operated to reduce the braking pressure of the brake device in order to reduce a braking force, thereby avoiding the wheel becoming locked, and when the braking pressure is to be recovered, the control valve means is operated to intermittently increase the braking pressure for the brake device for a given time in order to moderate the increasing of the braking force, wherein the control of the intermittent increasing of the braking pressure is stopped when the completion of the braking operation has been detected in the course of intermittently increasing the braking pressure in recovering the braking pressure. This avoids the wasteful operation of the control valve means to prevent the generation of any unwanted operational noise and a wasteful consumption of electric power. <IMAGE>
Patent DE-3925542-A1 (DE)
IPC: B42D15/02
Filed: 1989-08-02
Abstract: Conventional greetings cards to accompany small gifts are availableas ready-made card-like objects. The invention proposes a more compact greetings card which can also be used for other gifts and presents. The greetings card, which is made for example from cardboard-like material, is initially flat and can be folded up so that it can contain a bottle for example. To this end, facing fastening and holding means in the form of tabs on the main section (7) of the greetings card can be fitted together to form a cavity (5) to accommodate the bottle. The greetings card is particularly designed to accompany a gift in the form of a bottle.
Patent DE-3926604-A1 (DE)
Inventor: FRANKE HILMAR DR
IPC: G01N21/55
Filed: 1989-08-11
Abstract: The invention relates to a polyimide waveguide which is used as an optical sensor for the quantitative determination of liquids in the vapor phase, as well as for the determination of NH3, "NH4OH", NO2 and N2O5. The polyimide waveguide is composed of a cover layer, one or two layers of a polyamide-imide or a perfluorinated polyimide and a substrate.
Patent DE-3927025-A1 (DE)
Title: Gas-liq. separator for refrigeration installation - has spherical receiver vessel mounted above separation chamber
Inventor: SCHMITZ HEINRICH
IPC: F25B39/02
Filed: 1989-08-16
Abstract: The refrigeration installation incorporates a device for separating the refrigerant, leaving the evaporator, into a liq. stream and a gaseous stream. The refrigerant flows from the evaporator through the valve (16) and pipe (1) to a spherical vessel (2) which is mounted above the separator (11). The refrigerant flows out of the spherical vessel (2) through the narrow ducts (3, 4). The liq. fraction falls to the lower part of the separator with the gaseous fraction occupying the upper part. The gaseous fraction flows out through vertical pipes (13) which have their upper ends inside the separator and above the level of the liq. fraction. USE - Gas liq. separator for a refrigeration installation.
Patent DE-3930288-A1 (DE)
Inventor: POHL JOACHIM DR
IPC: C07C29/149
Filed: 1989-09-11
Abstract: Solid copper silicate catalyst, especially for hydrolysing oils and fats and fatty acid methyl esters into fatty alcohols without a chromium content, in which there is a zinc content with an atomic ratio of zinc to the total quantity of zinc and copper of between 0.2 and 0.8 and especially between 0.3 and 0.6, with a specific area to BET of between 40 and 400 m<2>/g, and especially between 150 and 350 m<2>/g and with a molar silicon dioxide content of between 0.1 and 2 and especialy between 0.2 and 0.6.
Patent DE-3932035-A1 (DE)
Title: Serial data transfer via voltage isolator - has word added to carrier and decoded as bit=parallel at output
Inventor: BALLEIER KLAUS DR ING
IPC: H04L25/49
Filed: 1989-09-26
Abstract: In one half-wave of each period, the  rectangular ac is added into a data word of square pulses in a fixed time raster. The switch over instant to the second half-wave is delayed by the sum of the pulse durations of the square pulse representing the data word with the potential opposite to that of the half wave, so that the sample ratio of the rectangular ac remains constant. At the secondary side of the isolator the pulses representing the information are coupled out of the rectangular ac, and these pulses are converted under clock control into a bit-parallel representation of the transmitted data word. The pulse evaluator at the secondary side may produce pulses of defined width, and feed a store. This has an output to a clock generator including a shift register with back coupling. USE - Computer controlled modulation of controller or measuring device.