baber/WOPTO huggingface dataset:
Patent DE-3843435-A1 (DE)
Title: Process for producing a decorative relief
Inventor: MOSCHNER GUENTER ING GRAD
IPC: B44C1/22
Filed: 1988-12-23
Abstract: In a process for producing a decorative relief, in particular for the interior décor of aircraft cabins, a metallic carrier material is shaped by etching. The essence of the invention is that aluminium or an aluminium alloy is used as carrier material and the following process steps are applied.     a) Pretreatment of the surface, b) application of the motif as a mask composed of a protective lacquer,   c) etching of the areas not covered by protective lacquer,     -low depths of up to approximately 0.2 mm in alkaline solution,   - greater depths of up to 0.5 mm in acidic etching solution,     d) posttreatment of the relief surface.   At the same time it is particularly advantageous for the decorative relief to consist essentially of aluminium so that the weight advantages of this metal can be exploited in aircraft applications.
Patent DE-3844175-A1 (DE)
Title: Flow-reversing device
Inventor: STEINBACH BERND DR ING
IPC: F16K11/087
Filed: 1988-12-29
Abstract: The invention relates to a flow-reversing device (1) which has a housing body (2) with three junctions (3, 4, 9). In this, the junctions (3, 4) are connected to a delivery-side and a suction-side pipe connection piece (5, 6), whilst the third junction part (9) is connected to a pipe-in-pipe system (12). Arranged in the housing body (2) of the reversing device (1) is a reversing element (13) which, in its two switching positions, connects either the delivery side or the suction side to the third junction part (9) for flow reversal. <IMAGE>
Patent DE-3902642-A1 (DE)
Title: Device for the releasable connection of a line
Inventor: BIERMANN MARTIN
IPC: F16L47/04
Filed: 1989-01-30
Abstract: A device for the releasable connection of a line (10), comprising a plastic pipe, in particular consisting of a semi-rigid plastic, having an externally smooth end for pressure medium exhibits a connection piece (1), bracing grippers (3), a sealing ring (2) between a shoulder (11) of the connection piece (1) and the bracing jaws (14) thereof, an actuating member (4) which can move axially relative to the connection piece (1), and a driving device (19, 20) of the actuating member (4), by means of which device the bracing grippers (3) can be pressed onto the sealing ring (2), and the connection between the plastic pipe (10) and the bracing claws (15), which can be pressed into the outer surface of said plastic pipe and belong to the bracing grippers (3), can be released by an axial displacement of the actuating member (4) relative to the connection piece (1). The end portion (9) over which the actuating member (4) engages and which belongs to the connection piece (1) is provided with an external thread which is in engagement with an internal thread of the actuating member (4). With reduction of the diameter of the outer cone (18) formed by them, the bracing jaws (14) can be introduced, by means of the driving device (19, 20), into the end portion (9) of the connection piece (1), towards the sealing ring (2), and can be pressed onto the sealing ring (2) by their end side (16) remote from the connecting ring (12). <IMAGE>
Patent DE-3906200-A1 (DE)
Title: Fastening of a seat cover to a cushion part
Inventor: RETSCH SIEGFRIED
IPC: A47C31/02
Filed: 1989-02-28
Abstract: In order to be able to fasten a seat cover (2) to a cushion part (1) in a time-saving manner and without retaining wire, it is proposed to use a retaining strip (3), which is secured to the cover (2) and has a barb-shaped portion (6), and a clamping strip (7), which is fastened to the cushion part (1) and reaches behind the barb-shaped portion (6) with inwardly directed projections (12, 13). <IMAGE>
Patent DE-3907783-A1 (DE)
Title: Apparatus for bonding moulded parts by ultrasound
Inventor: HELLWIG KARL-RUEDIGER
IPC: B29C65/08
Filed: 1989-03-10
Abstract: The apparatus for bonding moulded parts by ultrasound, in particular for producing optical storage discs, comprises a sonotrode (1), via which ultrasonic vibrations can be transferred to individual regions of the moulded parts (8, 9), a counterpressure plate (2) and a device (11) for the mutual positioning of the moulded parts. The sonotrode has a clearance (3) with offset vertical bounding faces (4, 5), of which the bounding face (4) largely covers the outer edge of the moulded parts and the bounding face (5) is formed by the device for positioning the moulded parts. <IMAGE>
Patent DE-3916888-A1 (DE)
Title: Filter candle element - has spring on one side of the filter separation wall, allowing in-situ adjustment of compression force
Inventor: KOCH PAUL
IPC: B01D29/15
Filed: 1989-05-24
Abstract: The filter element consists of a perforated centre tube closed at one end and is fitted in a boring in a separation wall in a filter housing. This tube carries on its outer end a stack of filter platelets which make up the filter body and are held in place between two spring-loaded end stops, one of which is fixed to the closed end of the centre tube. The other stop consists of a sealing ring which slides on the centre tube and is pressed against the outside of the separation wall by a coil spring fitted to the centre tube on the inside of the separation wall and tensioned by an adjusting nut. The centre tube contains several openings distributed over its length and its dia., or arranged as axially offset slots. USE/ADVANTAGE - New form of candle filter element for use in fine filtration, e.g. as is used in the filtration of dielectric fluids in spark-erosion machines, where very fine particles are encountered. The construction proposed is simple and allows in-situ adjustment and alteration of the filter material compression force.
Patent DE-3922304-A1 (DE)
Title: Chain-shortening device
Inventor: WALTERMANN HUBERT
IPC: B66C1/12
Filed: 1989-07-07
Abstract: In order to create a chain-shortening device consisting of a shaped part which can be fastened to a chain and has a receiving pocket for a chain link orientated parallel to the plane of the shaped part, which chain-shortening device is easy to mount subsequently without effort at any point of the chain and can be conveniently utilised, it is proposed that the shaped part (2) have one pocket (3) each at both ends. The pockets (3) are directed towards one another in mirror image and have one longitudinal slot (4) each, a leaf spring (7), designed as a double leg spring, being arranged in such a way as to extend roughly over the entire length of the shaped part (2) and project into the slots (4) with catch projections (8) integrally formed on its two ends and being shaped into a bearing eye (9) approximately at the centre of its longitudinal extent. A pin (10) held in the shaped part (2) passes through the bearing eye (9). <IMAGE>
Patent DE-3923458-A1 (DE)
Title: Unmanned vehicle guidance system e.g. for assembly plant - determines vehicle position and course using way point markers to support autonomous navigation system
Inventor: KROGMANN UWE
IPC: G05D1/02
Filed: 1989-07-15
Abstract: The system for guiding a steerable vehicle along a defined path contains a memory (32) in the vehicle contg. the stored path, an autonomous navigation system (20), a controller (34) which corrects positional errors and a vehicle steering system (24) controlled by the controller. The navigation system determines the vehicle's position and course. Markers are placed at discrete points along the path. They are detected from the vehicle and used to support the navigation system's position measurement. USE/ADVANTAGE - For transporting assembly parts in large scale manufacturing. The guide system can be installed and modified without great cost.
Patent DE-3925468-A1 (DE)
Title: Movement control for variable optics of enlargement copier - transfers drive for fixed focal length lens holder through step=up cam to mirror
Inventor: MIURA MASAKI
IPC: G03B27/34
Filed: 1989-08-01
Abstract: The lens holder (1) and mirror holder (2) are movable in predetermined mutually related directions, pref. in parallel to each other. The force of the drive (4,5) for the lens holder (1) is transferred to the mirror holder (2) via a cam element (4) and controlled so that the mirror holder (2) has a larger movement compared with movement of lens holder (1). Larger range of scales are thus achieved, without making volume of mechanical system larger. ADVANTAGE - Improved movement control for variable optics in enlargement copier with accurate, enlarged mirror movement without increase in mfg. costs.
Patent DE-3926013-A1 (DE)
Inventor: BOERNER JUERGEN
IPC: A47J43/25
Filed: 1989-08-05
Abstract: The invention is directed to a device for cutting fruit, vegetables or the like into slices, comprising a blade-holding plate at whose leading edge a V-shaped cutter blade is arranged, comprising two framing ledges arranged essentially parallel that are connected to one another by the blade-holding plate and by at least one further transverse web, and comprising a slide plate guided at the framing ledges and introducible parallel to the blade-holding plate, whereby a narrow gap remains between the back edge of the slide plate and the cutter blade. It is inventively provided that a support plate (11) fashioned as a closed surface is arranged under the slide plate (6) in order to increase the stability of the slide plate, particularly to counter sagging when pressure is exerted on the material to be cut.
Patent DE-3935154-A1 (DE)
Title: CAM for operating valve of piston machine - has its sliding surfaces lubricated by oil supplied through central axial hole present in it
Inventor: JUTZ BERNHARD DIPL ING
IPC: F01L1/08
Filed: 1989-10-21
Abstract: A piston machine has inlet and outlet valves actuated by cams (1) which operate on the end face (12) of the push rod (2). The sliding surfaces of the cam and push rod are lubricated by oil supplied through a central axial hole (10) in the cam. A radial hole (11) connects this axial hole with a tangential groove (8) in the part of the cam periphery of min. radius. The area of contact at the tip (4) of the cam where the max. pressure between cam and push rod occurs is thus not reduced by the lubrication groove. USE - Internal combustion engines.
Patent DE-3937635-A1 (DE)
Title: Determination of gas esp. ammonia in air - using calibrated pH-selective glass membrane measuring electrode
Inventor: FRITSCHE ULRICH DR
IPC: G01N33/00
Filed: 1989-11-11
Abstract: (A) In the quantitative determination of gases (esp. NH3) in air by potentiometric measurement using pH-selective glass membrane electrodes, the novelty is that a first electrode (measuring electrode) is directly contacted at the membrane side by the sample gas stream and is calibrated by a second electrode (calibration electrode) prior to taking measurements. (B) In appts. for carrying out the process, the first electrode (1) is mounted in a housing (2) such that its membrane side (3) is directly contacted by the sample air or calibration gas stream (18), while the membrane side (7) of the second electrode (4) is immersed in a soln. (6) partially filling a separate vessel (5) which has a first line (8) connected to the housing (2) and a second line (14) communicating with the air space of the vessel (5). USE/ADVANTAGE - The process allows simple, continuous, direct determination of NH3 (or other gases such as CO2, NOx, HNO3 or HCl) in air.
Patent DE-3939127-A1 (DE)
Title: Window which can be opened by winging or tilting - is guided by linkage which is concealed when window is closed
Inventor: LAHMANN ERNST
IPC: E05D15/52
Filed: 1989-11-27
Abstract: The window which can be swung open about a vertical axis or tilted about a horizontal axis, has the moving frame (2) attached to the fixed frame by a system of links  (10,11,13,14), which are fastened to the upper end and lower edges of the frames. When the window is closed these linkages are concealed in the gap between the rebates of the fixed and moving frames. The main link (10) has one end pivoted to the moving frame (2) and the other end attached to two links (13,14) which are attached to the fixed frame. The movement of the window frame (2) is guided by a pair of additional links with the end (17) of one of these links engaging a stop (16) and causing the shaped end (42) of the main link (10) to engage a socket (43) in the fixed frame to form a lock for the moving window frame. USE - Hinged or tilting windows.
Patent DE-3941509-A1 (DE)
Title: Air pressure warning appts. for vehicle tyres - has wheel-mounted resonator output decoded for two levels, with logic evaluation on vehicle
Inventor: HODATE MASATO
IPC: G01L17/00
Filed: 1989-12-15
Abstract: Anm oscillator (2) has a coil (1) attached to the side of the bodywork of a vehicle.  A resonator (7) is attached to the rim of a wheel having a tyre to be monitored, and is movable up to the coil (1).  It is in resonance with an e.m. wave sent out from this.  It comprises a resonance coil (3), a condensor (4), a resistor (5) and a pressure switch (6). A signal processor establishes normal and abnormal tyre pressures by rectifying the output signal of the oscillator (2) and binary encodes the rectified output with a limiting two at least two levels, and logic evaluates the output signal.  A warning signal (p) displays normal tyre pressure using an output signal of the processor. ADVANTAGE - Operates with twin-wheels, e.g. on buses and lorries.
Patent DE-4000123-A1 (DE)
Title: Holder for small incandescent lamp - is mounted in hole in CCT board via tube holding lamp
Inventor: ALBRECHT PAUL
IPC: F21V19/00
Filed: 1990-01-04
Abstract: The holder has the lamp's connection wires (10) connected to rivets (12) passing through holes in support parts (5,8). The upper and/or lower support part is elastically mounted onto the holder (1). The wires are held mechanically and electrically to the rivets by soldering, welding or bonding using a conducting adhesive. The rivets are rounded at teh end facing the circuit board (9). The support parts are on springy radial flaps (5). A peripheral lower flange (4) has recesses that form the flaps (5). USE/ADVANTAGE - For small incandescent lamp. Simple manufacture esp. of contact to lamp's connection wires despite production tolerances.
Patent DE-4001683-A1 (DE)
Title: Electro-optical LC system
Inventor: FINKENZELLER ULRICH DR
IPC: C09K19/54
Filed: 1990-01-22
Abstract: (+1.11.89(2), 9.12.89, 10.1.90(2), 12.1.90, 16.1.90, 19.1.90(3), 22.1.90, 23.1.90, 25.1.90-DE-936307/8, 940788, 000470/1, 000723, 001023, 001539, 001540/1, 001683, 001843, 002146) Electro-optical LC system comprises a dielectrically positive LC mixt. (LCM) and another optically transparent medium (M2) between 2 electrodes which may be mounted on substrate plates; the LC mols. have an irregular orientation in the "off" state one of the refractive indices of LCM matches that of the matrix (nM) and/or the ratio of the masses (LCM):(M2) is 1.5 or above, and the system shows reduced transmission in one of the switching states w.r.t. the other state, irrespective of the polarisation of the incident light; the novelty is that LCM contains cpd(s).  of formula (I). In (I), Q1 = A1-Z1-(Z2-Z2)m- (with A1, A2 = trans-1,4-cyclohexylene (Cyc), 1,4-phenylene (Phe), 2-fluoro-Phe or 3-fluoro-Phe; one of the gps. A1 and (if present) A2 can also = pyridine-, pyrimidine-, 1,3-dioxan- or tetrahydropyran-2,5-diyl, or naphthalene-2,6-diyl; Z1, Z2 = single bond, CH2CH2, COO, OCO, -CC-, and/or CH2O; m = 0, 1 or 2); Y, X = H or F; one gp. X or Y can also = Cl; W = CN, Cl, F, CF3, OCF3, OCHF2, NCS or R2 (with R2 = as for R1 below); R1 = 1-12C alkyl, opt. with 1 or 2 non-adjacent CH2 gps. replaced by O or CH=CH.
Patent DE-4002615-A1 (DE)
Title: A=D conversion circuitry for electrical measurement values - contains two comparators and capacitor with stepwise linear charging via periodically operated switch
Inventor: WOYDA-WOLF MARTIN DIPL ING
IPC: H03M1/56
Filed: 1990-01-30
Abstract: A circuit for analogue-to-digital conversion of electrical measurement values contains a microprocessor controller.  The meaurement value is compared with reference values and converted according to the single slope method. Commoned inputs of two comparators (VG1,VG2) are connected to a capacitor (C) which is charged linearly in steps via a periodically controlled switch (S1) to a voltage greater than the measurement (UM) and reference (UR) voltages, which are connected to the other comparator inputs.  The  measurement voltage is derived from the switch activations counted until a comparator switches. USE/ADVANTAGE - Component tolerances and ageing do not affect meassurement results of simple, single-slope converter.
Patent DE-4004362-A1 (DE)
Title: Repair of damaged storm gutters - requires removal of grating seating and part of gutter side before fixing reinforcing anchors and filling with concrete
Inventor: MEZGER FRIEDRICH
IPC: E01C23/06
Filed: 1990-02-13
Abstract: The method is for repairing damaged `U'-shaped gutters with a top grating. The damaged grating seating is completely removed leaving a void between the adjacent surface edge and the gutter (1), and right down to the concrete foundation (7). Reinforcing elements (15,16,17) are fixed in the side (3) of the gutter (1) from which the seating has been removed, to form a new seating for the grating (4). All the relevant surfaces are then cleaned (3,7), and the void is filled with concrete (20). In addition to the grating seating, a further thin portion of the gutter side (3) is also removed prior to repair. USE/ADVANTAGE - A permanent repair to the gutter.
Patent DE-4006559-A1 (DE)
Title: Ring spinning frame - has automatic spinning on mechanism to form loop on tubes or cops
Inventor: DOENMEZ ATTILA DIPL ING
IPC: D01H15/00
Filed: 1990-03-02
Abstract: Equipment fitted to a ringspinning frame enables spinning on to be commenced automatically. A device enables a loop of yarn to be made at or near the spindle, to engage on a tube, or cop, with several turns. ADVANTAGE - The method is adaptable to requirements, eliminates the need for manual operation, is reliable in use and economical to install.
Patent DE-4008773-A1 (DE)
Title: Controlling distribution of output from road gritting vehicles - measuring air and surface temp. and humidity to control quantity of substance scattered
Inventor: PIETSCH PETER-MAX DIPL ING
IPC: E01H10/00
Filed: 1990-03-19
Abstract: A probe (1) measures surface temp. A display (3) is provided in  the driver's cab. A storage container (5) is attached. The temp. of the road surface is continuously monitored for automatic control of the quantity of grit or salt scattered on the road. Pref., the humidity and ambient air temp. are also measured to determine optimum quantity of grit or salt to be laid. ADVANTAGE - Reduces waste.
Patent DE-4010882-A1 (DE)
Inventor: BECHEM HERBERT
IPC: C02F1/02
Filed: 1990-04-04
Abstract: Process for disinfecting process water circulating through a supply and return system, in which the water is heated for a predetermined minimum time to a sterilising minimum temperature. To ensure a fault-free disinfection in all parts of a process water supply network, both the attainment or maintenace of the sterilising minimum temperature and the holding for the required minimum time are monitored together in the return part of the utility water system. A process water plant suitable for carrying out this process comprises a heatable process water storage (1), a circulation line (4) leading to taps (10) and a circulation pump (5) arranged in this circulation line (4). To monitor the sterilising minimum temperature and the minimum duration of the disinfection, in the return (3) of this circulation line (4), a temperature sensor (6) is disposed, which is connected via a timer (8) and control leads (7, 9) to the drive of the circulation pump (5). Furthermore, after completion of the disinfection, the process water is cooled again to the set temperature expedient for its use and storage. In order to utilise the excess heat contained in this process water, the water, prior to cooling, is circulated in a circuit serving for heat removal, preferably heat exchange using a heating medium such as heating water. <IMAGE>
Patent DE-4011218-A1 (DE)
Title: Multiple ejector pump assembly - has series of nozzles with inserted rod to create annular gaps
IPC: F04F5/22
Filed: 1990-04-06
Abstract: The ejector arrangement has a set of nozzles (22,23,24,25) positioned one behind the other.  There is an inlet channel for a gaseous medium under pressure, a suction chamber and a number of suction channels connected by one-way valves with the suction chamber. The flow cross section of the nozzles is ring-shaped and the gaseous medium flows only through the annular gap between the walls of the nozzles and a concentric, axially arranged rod (27). USE/ADVANTAGE - Ejector having improved suction performance and providing a good vacuum.
Patent DE-4018936-A1 (DE)
Title: Heat storage system - uses latent heat of melting ice stored in underground tube connected to sump and contg. heat pump evaporator
IPC: F28D20/02
Filed: 1990-06-13
Abstract: A heat storage system, which utilises the latent heat of melting ice, consists of a tube (1) which is buried in the soil. This tube is partly filled with water and is connected to a sump (11). The water (10) in the tube is frozen but leaves a passageway (8) above the surface of the ice. An evaporator (5) of a heat pump (14) is installed in the tube and embedded in the ice. A pump (6) immersed in the sump pumps water to a solar heat collector (3). The heated water flows back to the tube and melts some of the ice so that the heat is stored as latent heat. Refrigerant from the heat pump is circulated through the evaporator to refreeze the water. USE - Heat storage.
Patent DE-4021359-A1 (DE)
Title: Detecting covered current paths in highly integrated circuits - using magneto=optical film and device to produce contrast image
Inventor: WELLER DIETER DR
IPC: G01R31/315
Filed: 1990-07-05
Abstract: The method of detecting covered current paths in a body (2) which are insulated w.r.t. a free surface (2a) involves detecting a magnetic field of known strength at the surface caused by currents flowing in the conducting paths. The free surface is covered by a thin film (5) of magnetooptical material with magnetic anisotropy with a defined orientation of the easy magnetisation direction. The magnetisation normal to the surface depends essentially linearly on the field.  The instantaneous magnetisation state in the film influences the magnetooptical rotation angle to appear as a contrast image (15) in a magnetooptical device (14). USE/ADVANTAGE - E.g. for fault detection in highly integrated circuits. For convenient location and testing of concealed current paths without ingress.
Patent DE-4021442-A1 (DE)
Title: Tunnel kiln - has combustion chambers in enlarged kiln mantle at the firing zone or at the transfer from the preheating zone
Inventor: HAESSLER ANDREAS DIPL ING
IPC: F27B9/30
Filed: 1990-07-05
Abstract: Heated combustion chambers are within the enlarged kiln mantle, of a tunnel kiln, at the firing zone or at the transfer between the preheating and firing zones. They have openings for gas inlet and outlet to take in the colder fuel gas for the kiln gas from the entry to the kiln. The gas channels run within the enlarged kiln mantle. Heat exchangers lie along the longitudinal direction of the kiln within the kiln mantle, on both sides of the preheating zone at its lower temp. section. They cool the hot kiln exhaust gases for lateral recirculation through fans. The heat exchangers are pitched at an angle to the axis of the firing channel, to give one or more V-shaped structures. At least part of the exhaust gas is passed to the inner combustion chambers, on its path through the heat exchangers in the enlarged mantle section of the preheating zone to the exhaust chimney.  ADVANTAGE - The system does not require special thermal insulation provisions.