baber/WOPTO huggingface dataset:
Patent DE-3811735-A1 (DE)
Title: Method for measuring frequency
Inventor: HELMSTAEDTER GERALD
IPC: G01R29/027
Filed: 1988-04-08
Abstract: In this method, in which the frequency of a supplied signal is repeatedly measured, a first frequency measurement is carried out in accordance with a first method. Depending on the result of the measurement, a subsequent frequency measurement is carried out in accordance with the same or a different method. <IMAGE>
Patent DE-3814913-A1 (DE)
IPC: F16L37/14
Filed: 1988-05-03
Abstract: The invention relates to a pipe joint for propulsion pipes or the like, having joining elements in each case on the free ends of the individual pipes. In the joining region there is a flexible sealing element (3) for sealing the connected pipes (1). The pipe wall (13) in this region is displaced backwards on at least one free end (11, 12) as a mirror image of the surrounding sleeve end, in stepped segments (121, 122, 131, 132) of corresponding length and depth. An additional retaining slot (123, 133), for forming a retaining chamber (15), is incorporated in each case on the inner circumference at a defined distance from the free end (111) of the sleeve end (11) and from the free end (124) of the plug end (12). A locking element (2) is inserted into this retaining chamber (15) from the outside, via an opening (14) in the pipe wall. The sealing element (3) is located between the free end (124) of the plug end (12) and the supporting shoulder (112) of the sleeve end (11). In this way, a pipe joint is produced which is resistant to tension and compression forces in equal measure and which is still designed to be fluid-proof by means of the partially- compressed sealing element (3). <IMAGE>
Patent DE-3815803-A1 (DE)
Title: Piston ring for internal combustion engines
Inventor: JAKOBS ROLF DR
IPC: F02B3/06
Filed: 1988-05-09
Abstract: Known double-trapezium taper face rings with cross-sectional distortion twist anticlockwise in the fitted state. This results in a wearing edge which adversely affects the oil consumption of the internal combustion engine. The new piston ring is intended to guarantee the oil scraper effect for a long operating time. The double trapezium taper face ring (1) is capable of meeting this requirement in that a cross-sectional distortion (3, 14) is arranged on that side remote from the combustion chamber. The piston ring is especially suitable for diesel engines. <IMAGE>
Patent DE-3816462-A1 (DE)
Title: Method for transmitting signals via a narrowband channel
Inventor: KALLIO-KOENNOE KARI
IPC: H04B1/66
Filed: 1988-05-13
Abstract: Method for transmitting signals containing information on the radio path via a narrowband signal channel. The signal containing the information is fed at the transmitting end to a mixing unit to which the signal of the local oscillator of the transmitting end is fed. In the mixing unit, a mixing product is formed from the information signal and the local oscillator signal, its frequency range being essentially lower than the frequency range of the information signal which is to be transmitted. The mixing product signal is used as the modulation signal of the radio transmitter with which both the signal of the aforementioned modulation signal containing the information and precise information on the frequency and phase of the local oscillator signal are transmitted. At the receiving end, the demodulated modulation which is to be transmitted is separated with a bandpass filter and the signal obtained is fed to the mixing unit of the receiving end to which the signal containing information on the frequency and phase of the local oscillator of the transmitting end is also fed. A mixing product which corresponds in terms of its information content and frequency to the original information signal of the transmitting end is formed in the mixing unit from the aforementioned signals which are fed into it.
Patent DE-3823188-A1 (DE)
Title: Automatically driven door or window system
Inventor: BLUEMLE JOHANNES
IPC: E05F15/643
Filed: 1988-07-08
Abstract: The invention relates to an automatically driven door or window system with sliding wings guided in a running rail. In known systems of this type, the drive units are fastened to a stationary frame part in a complicated manner. The invention provides for fastening the drive units on the housing of the running rail, the housing 5 having a portion with a dovetail profile 40, on which at least one component 15 of the drive is mounted. <IMAGE>
Patent DE-3823327-A1 (DE)
Title: Reference electrode for measuring electrochemical variables
Inventor: HAAF DIETER
IPC: G01N27/30
Filed: 1988-07-09
Abstract: A reference electrode (11) for measuring electrochemical variables (quantitites) is provided with a metallic electrode body (12). The object of the invention is for such a reference electrode (11) to be of simple design, have enhanced operational reliability and be pressure-resistant and insensitive to contamination by substances having surface affinity. To this end it is provided for the metallic electrode body (12) to be formed by a solid single-piece body which is made of a metal and, on a surface zone, is coated with a thin layer (12) of a metal ion or metal salt, and for there to bear, on this surface zone, a bridge body (14) made of a solid electrically conducting but electrochemically inert material. <IMAGE>
Patent DE-3825558-A1 (DE)
Title: Bellows
Inventor: SCHULIN GERHARD
IPC: F16H59/02
Filed: 1988-07-28
Abstract: A bellows has folds arranged on a helical line and a cable is arranged along one of the helical folds of the bellows and connected to the bellows essentially over the entire length of the fold. The cable is thus supported over a large part of its length and bending stresses are transmitted uniformly to the cable.
Patent DE-3825979-A1 (DE)
Title: Arrangement for cooling components which dissipate lost heat
Inventor: MANCHEN JOACHIM DIPL ING
IPC: H01L23/427
Filed: 1988-07-27
Abstract: The invention relates to an arrangement for cooling components which dissipate lost heat, in particular wafer cell semiconductors via heat sinks preferably via isolated heat sinks. In order in the case of air cooling to achieve an improvement in the cooling of power semiconductor devices, in particular in insulated cooling systems which, e.g., can be at frame potential, and in order to compensate even the increase in thermal resistance which occurs in the case of electrical (galvanic) isolation between the power semiconductor and heat sink by thermally conductive solid-state insulators, it is proposed that heat pipes (2, 2a) are integrated in the heat sink(s) (1, 1a) for isothermalisation purposes. If heat-conducting brackets are to be used for double-sided cooling, heat pipes can also be integrated in the heat-conducting brackets. Various possibilities of embodiment are presented. <IMAGE>
Patent DE-3826421-A1 (DE)
Title: Single-conductor connecting cable for electrical welding tongs
Inventor: PITSCH FRANZ
IPC: H01B7/18
Filed: 1988-08-03
Abstract: A flexible single-conductor connecting cable for electrical welding tongs, consisting of a bundle (10) of stranded and braided copper braids, whose ends are held in copper caps (18) of preferably rectangular cross-section and are crimped to them to form solid connecting blocks (18). A mesh flexible tube (18) consisting of non-combustible insulating material, such as plastic fibres or fibreglass fibres, extends with its ends under the copper caps (18) and is additionally crimped thereto, which ensures that, even if the cable is bent extremely severely, its region between the connecting blocks is insulated, and any risk of short-circuit is in consequence prevented. <IMAGE>
Patent DE-3828386-A1 (DE)
Inventor: WATTS PETER JOHNSON
IPC: B42D15/04
Filed: 1988-08-20
Abstract: Reusable greetings card has a removably secured and replaceable section 2 strategically located on the card to receive a personal message written by the sender or to bear a preprinted message to suit a particular purpose. <IMAGE>
Patent DE-3831180-A1 (DE)
Title: Method for recording images and device for implementation thereof
Inventor: EBDING TILMANN DR
IPC: H05G1/64
Filed: 1988-09-13
Abstract: Device for taking images with high picture repetition frequency, consisting of a generator (1) for producing X-ray pulses (IX) which are intended to be directed onto an object (2) of which X-ray images are to be taken, and behind which a scintillator screen (4) which converts the X-rays into visible light and image-recording parts (5) are arranged. Photomultiplier parts (3) are inserted between the object (2) of which images are to be taken and the scintillator screen (4), in order to increase the intensity of the X-radiation acting on the scintillator screen. Use for taking X-ray images of a transient high-speed process such as the detonation of an explosive or the impact of a projectile on a target. <IMAGE>
Patent DE-3831845-A1 (DE)
Inventor: RIENECKER REIMUND
IPC: D21D5/02
Filed: 1988-09-19
Abstract: Structural/mechanical measures are used so that it is possible either continuously or in increments over the length of a wire cage (2) of a screen to maintain a differential velocity of at least 5 m/s between the peripheral velocity of the screening vanes (3) of a rotor and the fibrous suspension. As a result the throughput is considerably greater than with conventional wire cages. This may be done by having a wire cage and rotor whose diameters increase steplessly, or in a stepped manner, from the input to the output end of the apparatus. Alternatively or additionally baffles may be provided at discontinuities along the internal wall of the cage. <IMAGE>
Patent DE-3835050-A1 (DE)
Title: Torque-limiting coupling
Inventor: JAKOB LUDWIG DIPL ING
IPC: F16D7/08
Filed: 1988-10-14
Abstract: According to the invention, it is proposed to realise the form closure, which is automatically self-releasing when a torque limit is exceeded, in a plurality of parallel planes (in the basic sketch of Figure 1 two are shown) instead of only in one plane as in the previously known torque-limiting couplings. In the exemplary embodiment of Figure 1 the engaged condition is shown above the centre line and the disengaged condition below the centre line. All of the parts are only shown in one piece for the sake of clarity, even if they comprise more than one piece during or at the end of manufacture. In a construction and function known per se drivers (detent balls) (3) are accommodated movably in the openings (1a) in the coupling body (1), which drivers are pressed by the force of the spring (5) via the pressure disc (4) into recesses (2a) in the coupling body (2). According to the invention, it is proposed to provide, parallel to the partition line (7), further partition lines for the form-closure mechanism by directing the torque of the coupling body (1) via a driver cage (1c) and the force of the spring (5) via a spring cage (6) to the next partition line (8). <IMAGE>
Patent DE-3842194-A1 (DE)
Title: Circuit for decoding amplitude-modulated pulse signals proportional to the tidal flow
Inventor: HOFFMANN JUERGEN
IPC: A61B5/091
Filed: 1988-12-15
Abstract: The invention relates to a circuit for detecting respiration cycles from coded pulse signals. The aim and object of the invention consists in creating with the lowest outlay on circuitry a noise-free (interference-free) decoding circuit by means of which signals for detecting the beginning or end of a breath can be filtered out of amplitude-modulated pulse signals which are proportional to the tidal flow and are transmitted via a two-(double-) pole (bipolar) measuring line. This is achieved according to the invention when the decoding circuit consists of a programmable low-power operational amplifier which is connected on the output side to the IT input of a timing (timer) circuit which operates as a trigger and whose programming input is connected via a resistor and a zener diode to the pulse input of the circuit and the IS input of the timer circuit.
Patent DE-3843462-A1 (DE)
Title: Running roller for use with a crawler unit which has two rows of vertical journals
Inventor: STUEHRENBERG HEIKO
IPC: B62D55/14
Filed: 1988-12-23
Abstract: The subject matter of the invention is a running roller for use with a crawler unit which has two rows of vertical journals. In order to avoid the body of the vehicle vibrating and to prevent externally visible wear of the rows of vertical journals, a running roller which consists essentially of three wheel bodies is proposed, the central body serving exclusively to guide the track laterally whilst the two outer bodies direct the weight of the vehicle onto the track.
Patent DE-3903007-A1 (DE)
Title: Surface decoration for jewellery, useful and artistic articles
Inventor: FIUKOWSKI EBERHARD DIPL PHYS D
IPC: B44C1/14
Filed: 1989-01-30
Abstract: Published without abstract.
Patent DE-3910734-A1 (DE)
Title: Apparatus for the manufacture of wood shingles
Inventor: WEISS LUDWIG
IPC: B27M3/02
Filed: 1989-04-03
Abstract: The invention relates to an apparatus for the manufacture of wood shingles, having a stationary supply conveyor which feeds the wooden blocks from which the shingles are produced to a power saw, a working-cylinder device which presses the wooden blocks against the saw blade, and a stationary discharge conveyor which transports the shingles sawn off the wooden blocks away from the power saw. In the manufacture of wood shingles from parallelepipedal wooden blocks whose edge length corresponds to the shingle length and width, wedge-shaped pieces corresponding to the wedge-shaped configuration of the shingles have to be successively cut from such a wooden block. The substantial automation of the manufacture is effected by a slide table between supply conveyor and power saw, which slide table is movable to and fro parallel to the saw blade and past the latter and is equipped with two rocking devices each having a tilting plate for bearing against the surface of the wooden block, of which the one tilting plate on the bottom side serves as supporting base for the wooden block and the other tilting plate on the saw-blade side serves as lateral bearing for the wooden block, such that the two tilting plates incline the wooden block in relation to the cutting plane of the saw blade during each saw cut by the wedge angle of the wood shingle to be manufactured, whereby in each case two successive cut faces in the wooden block enclose in relation to the constant cutting plane of the saw blade opposite wedge angles  alpha  and  beta , and ... Original abstract incomplete.
Patent DE-3913061-A1 (DE)
Title: Process for vibration filling of electrode matrices having a foamed or fibrous structure for galvanic cells, and corresponding active mass paste
Inventor: BENDA KLAUS VON DR
IPC: H01M4/62
Filed: 1989-04-21
Abstract: A process for vibration filling of electrode matrices having a foamed or fibrous structure for galvanic cells, in particular for electrical accumulators, is described in which one or more electrode matrices are completely immersed into an active mass paste which is being vibrated. In addition, the active mass paste is specified, which has an active mass proportion of from 25 to 60% by volume, a maximum particle size of the active particles of 0.04 mm, and in the non-vibrated state a yield strength of from 10 to 120 Pa and a plastic viscosity of from 0.1 to 1 Pa.s at 20@C. The active mass paste may additionally contain a dispersant from the group comprising the water-soluble salts of the polyphosphoric acids.
Patent DE-3917150-A1 (DE)
Title: Clamping device for shuttering boards of an end shuttering for concrete floors
Inventor: ALBANESE GIULIO
IPC: E04G11/36
Filed: 1989-05-26
Abstract: The clamping device comprises a clamping piece (11) which is designed, for example, as a round bar and has a handle (13) which is arranged perpendicularly with respect to the longitudinal axis (X) of the clamping piece (11). The free end (13') of the handle (13) is designed in the form of a hook and merges into a point (13''). Slots (12) running transversely with respect to the longitudinal axis (X) of the clamping piece (11) are provided on both sides of, and parallel to, the handle (13). The shuttering boards (3) nailed onto vertical parts of the retaining devices of the end shuttering are clamped with respect to the vertical parts, by means of each of the clamping devices (10), such that the projecting nail ends (8') guided through the slots (12) are bent off about the longitudinal axis (X) at an angle of approximately 60@ by means of the lever-like handle (13), and the shuttering board (3) is clamped with respect to the vertical part of the retaining device by means of the point (13'') which is directed towards the shuttering board (3) and can be driven into the same. <IMAGE>
Patent DE-3917393-A1 (DE)
Title: Serological detection of antibodies against Lyme disease - using non pathogenic Borrelia hyodysenteriae as antigen source
Inventor: KOERTING HANS JOACHIM DR
IPC: G01N33/569
Filed: 1989-05-29
Abstract: Qualitative detection of antibodies (Ab) against Lyme disease uses, as the antigenic component, the Spirochaete Borrelia hyodysenteriae (B.h.) which is not pathogenic to humans.  B.h. is used either as complete cells or as antigen-carrying disintegration products. USE/ADVANTAGE - This method allows serological detection of Ab without requiring precautions against the spread of infection (contrast the standard method which uses the highly pathogenic B. burgdorferi as antigen source). B.h. can be grown  safely under normal laboratory conditions. Detection of Ab provides early diagnosis of infection.
Patent DE-3920585-A1 (DE)
Title: formation of double-diffused emitter for power semiconductors - using processes based on sidewall spacers or controlled isotropic under-cutting of diffusion windows
Inventor: BAUER FRIEDHELM DR
IPC: H01L21/331
Filed: 1989-06-23
Abstract: The emitter area to be formed consists of a central, deep, highly doped region (5) and a lightly doped, lateral region (4). It is constructed by 2 separate diffusions through 2 self-aligned windows. In the first process the larger window is opened in a masking layer (22), pref.  polysilicon, pref. separated from teh substrate (14) by an isolation layer (16). This is then covered by a layer (17), pref. a low temp. deposited SiO2 or spun-on polyimide, which is etched back anisotropically to leave spacers at the edges of the window, which define the diffusion window for the deep diffusion. After this diffusion the spacers are etched away isotropically using an oxygen-plasma in the case of a polyimide layer. In the alternative process a masking layer (22), pref. separated from teh substrate (14) by an insulating layer (16), is etched, pref. using SF6 with CFC13, through an etchmask layer (19), pref. photoresist. The window etched is the diffusion window for the deep diffusion (5). Then, with teh mask (19) still in place, the layer (22) is undercut, pref. using SF6 only, defining the larger window. After removal of the mask (19) the shallow diffusion (4) is made. USE/ADVANTAGE - The processes define selfaligned diffusion areas, avoiding the yield and performance reductions in current devices resulting from misalignment. It allows lower values of emitter series resistance. The processes are used in the mfr. of insulated gate bipolar transistors (IGBT) and mos controlled thyristors (MCT).
Patent DE-3924288-A1 (DE)
Title: Optical fibre parison cleaning rod - with flexible spiral, removes deposited soot from inside
Inventor: MOETTER ADOLF
IPC: C03B37/018
Filed: 1989-07-22
Abstract: A glass tube representing the parison for an optical fibre is cleared for the internal CVD deposition of sheath and core glass layers, by using a cleansing rod which has the shape of a spiral at the end and has at least in this end piece adequate flexibility to adapt its cross-section to that of the section to be kept clear of SiO2 soot. A rotary drive keeps the cleansing rod in motion. Pref. the cleansing rod (1) for the glass tube (2) has a spiral-shaped end piece (3) and the top end (4) is slit to a fork (4', 4''). A three-jaw chuck (5) is used to introduce the rod after each coating cycle. A rotary drive (11) revolves it in a tail stock (9) with two ball bearings (7,8) and a linear drive (10) reciprocates it. The collected soot is extracted by suction (12).
Patent DE-3926990-A1 (DE)
Title: Mains supply with battery back-up - switched in by relay stages to maintain continuity esp. in hospital
Inventor: LIEVENBRUECK NORBERT
IPC: H01H47/00
Filed: 1989-08-16
Abstract: An electrical power supply system has a mains supply (1) and an emergency supply (2) in the form of a battery (3) powered a.c. inverter (4). Load circuits (5) are connected to the mains via relays (H1, H2) and a transformer (T) that provides isolation as required in hospital systems. The back-up supply is connected via a pair of relays (N1, N2) with output lines commoned onto the mains supply lines. As the back-up supply is switched in, the mains is switched out by the action of links (12, 13). ADVANTAGE - High level of functional security, even if fault arises on switching elements, good chance of switch-over remains.
Patent DE-3927836-A1 (DE)
Title: Ceiling plug with external or internal thread - has dia. as big or bigger than shaft and provides secure fastening in ceiling
IPC: F16B13/00
Filed: 1989-08-19
Abstract: The ceiling plug has either an external (7) or internal (8) thread. The dia. of the plug (1) is at least as big as the dia. of the plug shaft. The internal thread (8) is positioned in the head (2) or the main plug part (1). USE/ADVANTAGE - The plug is for fastening fittings to a ceiling.
Patent DE-3929088-A1 (DE)
Title: Belt pulley for speed regulators for motor vehicle - consists of vibration damper with hub and opposite facing flanges
Inventor: BONFILIO CIRIACO
IPC: F16H55/56
Filed: 1989-09-01
Abstract: The belt pulley for speed regulators, especially for a motor vehicle, comprises a vibration damper (26), a hub (1) with a free end (24) and around which are two opposite-facing annular flanges (5,6) of a truncated-cone shape.  One flange (6) is moved axially by axial elastic means (10) and has at least one annular plate spring (11). A support (14) is axially fixed on the hub (1) and differs from the vibration damper (26) to which the fixed flange belongs.  The vibration damper (26) possesses a mass (25) extending radially over the fixed flange (5). USE/ADVANTAGE - The amount of material required for supporting the vibration damper is reduced.
Patent DE-3930155-A1 (DE)
Title: Oil sepn. from horizontally flowing liq. - with transverse barrier of flow-directing apertured plate preceded by mesh structure
Inventor: BEYER KURT
IPC: B01D17/02
Filed: 1989-09-09
Abstract: While liq. is flowing horizontally through a container (5) between an inlet (2) and float-controlled outlet (4) at opposite ends, oil is sepd. by one or more transverse flow controlling barriers. The (or each) barrier has a perforated plate (6) or rigid grid, immediately preceeded by a net structure (7) pref. made of knitted wire or fabric filaments. Several such inserts may follow in the byflow direction. ADVANTAGE - The simple device provides effective sepn.
Patent DE-3933860-A1 (DE)
Inventor: BEHLER ANSGAR DR
IPC: C09K23/42
Filed: 1989-10-11
Abstract: The sulphatisation of ethoxylised alkanols obtained by the reaction of ethylene oxide with alcohols with 8 to 22 C atoms in the presence of a hydrotalcite catalyst provides alkyl polyethoxy ether sulphates distinguished by a low dioxane content and extremely good coagulability using ordinary electrolytes.