baber/WOPTO huggingface dataset:
Patent DE-3363313-D1 (DE)
Title: Carrier frequency system for four-wire operation
Inventor: ANDERS ALOIS DIPL ING
IPC: H04B17/40
Filed: 1983-01-17
Granted: 1986-06-12
Abstract: 1. A communications transmission system for carrier frequency signals and four-wire operation having terminal units (I, IV; I, IV') which contain a transmitter (3, 16; 3, 16') and a receiver (4, 15; 4, 15'), whith intermediate stations (II, III; II', III') having amplifiers (7, 11; 7', 11') for one transmission direction and amplifiers (8, 12; 8', 12') for the other transmission direction and, with a transmitting medium (5, 6, 9, 10, 13, 14) characterised in that each transmitter (3, 16; 3, 16') contains a cascade circuit of a frequency modulator (20, 85) for carrier-frequency signals, a limiter (21, 84), a second matching circuit (22, 83) and an electro-optical converter (23, 82), that the second matching circuit (22, 83) is provided with a second input for an additional analogue signal located below the band of the frequency-modulated, carrier-frequency signals, that each receiver (4, 15; 4, 15') contains a cascade circuit consisting of an opto-electrical converter (34, 71), a first matching circuit (33, 72), a limiter (32, 73), and a frequency demodulator (31, 74), that the first matching circuit (33, 72) is provided with a second output for the additional signals, which is followed by a filter (28, 29, 75, 77, 87) to block the band of the frequency-modulated, carrier-frequency signals, that in each direction of transmission the intermediate stations (II, III, II', III') the amplifier (7, 8, 11, 12; 7', 8', 11', 12') has a cascade circuit consisting of an opto-electrical converter (35, 52, 53, 70), a first matching circuit (36, 51, 54, 69), a limiter (37, 50, 55, 68), a second matching circuit (38, 49, 56, 67) and an electro-optical converter (39, 48, 57, 66), that a first transmission path is provided purely for additionnal signals, in the intermediate stations (II', III') between the second output of the first matching circuit (36, 51, 54, 69) and the second output of the second matching circuit (38, 49, 56, 67) in both directions of transmission and that a second transmission path is provided purely for additional signals in the intermediate stations (II, III) between the second output of the first matching circuit (36, 54) in the first transmission direction and the second input of the second matching circuit (49, 67) in the second transmission direction, that in each intermediate station (II', III') a generator (44, 62, 90, 91) for an additional signal, individually assigned to each intermediate station, is connected to the second input of each second matching circuit (38, 49, 56, 67) and that in each intermediate station (II, III) a generator (44, 62) for an additional signal, individually assigned to each intermediate station, is connected to the second input of the second matching circuit (38, 56) of that direction of transmission from which the second transmission path for additional signals commences and that optical waveguides (5, 6, 9, 10, 13, 14) are provided as transmitting medium.
Patent DE-3378165-D1 (DE)
Title: Method and apparatus for cleaning heat exchangers
Inventor: BADER EMIL
IPC: F28G9/00
Filed: 1983-05-11
Granted: 1988-11-10
Abstract: 1. Method of cleaning a heat exchanger (30) for heat recovery from an exhaust-air stream, consisting of tubes (32) traversed by a heat carrier which have lamellas (31) or ribs, characterized in that, during operation of the heat exchanger (30), nozzles (46) moving to-and-fro along the exhaust-air entrance side thereof are used to spray first a cleaning liquid and next a rinsing liquid in the direction of the exhaust-air stream, against the lamellas (31) or ribs of the heat exchanger (30), and the spent liquid is drained off below the heat exchanger (30).
Patent DE-3380903-D1 (DE)
Inventor: READ RANDOL ROBERT
IPC: G01V1/24
Filed: 1983-12-15
Granted: 1990-01-04
Abstract: An improved cableless seismic digital recording system is disclosed which records seismic-trace data generated by any type of seismic source, including high energy impulsive seismic sources, such as dynamite, and low energy surface seismic sources, such as vibrators and hammers. A seismometer, or geophone, is connected to a remotely deployed radio-controlled portable recorder which contains circuitry for sampling, digitizing, processing, storing, and recording seismic-trace data. Coded radio signals instruct each recorder to commence an operation or sequence of operations from a predetermined set of programmed instructions stored in program read only memory included in each recorder. Such operations include seismic-trace data acquisition; optional weighting and vertical stacking (summing); normalization; recording; and seismic source initiation.
Patent DE-3382675-D1 (DE)
Inventor: GONZALEZ CARLOS F
IPC: C12N1/00
Filed: 1983-10-20
Granted: 1993-05-19
Abstract: Derived microorganisms containing foreign DNA encoding for nisin production and a method for producing the derived microorganisms by transferring DNA to a recipient microorganism are described. The recipient microorganisms are preferably bacteria lacking in the ability to produce nisin. Nisin inhibits the growth of spoilage bacteria and is used in various materials for preservation, including foods and particularly at refrigeration temperatures. Nisin is also used in animals for improving the health of the animal. The foreign DNA is obtained from a donor microorganism and encodes for nisin production when transferred to the recipient microorganism.
Patent DE-3462401-D1 (DE)
Title: A process for the manufacture of quinolinic acid
Inventor: MATHIAPARANAM PONNAMPALAM
IPC: C07D213/807
Filed: 1984-08-03
Granted: 1987-04-02
Abstract: Quinolinic acid is made by oxidising quinoline with ruthenium tetraoxide in the presence of hypochlorite solution supplemented with additional base such that the molar ratio of total base to quinoline is at least 4:1. Optionally carbon tetrachloride is present in the reaction medium. 
<??>The additional base enables inproved yields of quinolinic acid to be obtained. 
<??>Quinolinic acid is a starting material for some chromogenic materials used in the pressure sensitive record material field.
Patent DE-3466732-D1 (DE)
Title: Self-closing valve
Inventor: STRANGFELD REINER
IPC: F16K21/04
Filed: 1984-06-22
Granted: 1987-11-12
Abstract: A self closing valve has a housing with a water inlet and outlet and with a valve piston positioned inside it in such a way that the end of the piston facing away from the valve seat demarcates a discharge chamber in conjunction with the inlet and outlet through flowthrough passages that are activated in opposite directions by supplementary-valve controls in such a way that the duration of operation is determined by a decelerated opening stroke of the valve piston and closure is activated by a rapid closing stroke of the valve piston. The initiating position of the supplementary-valve controls that is provided during the opening activation of the valve piston is designed to maintain itself hydraulically as the result of a pressure difference generated at a choking device as the result of the flow through the valve and discontinuing the automatic maintenance shifts the supplementary-valve controls. Any leakage flows that may occur at the self-maintaining members are diverted to the outlet, without being choked off, through the supplementary valve that is opened by means of the initiating position of the supplementary-valve controls and the supplementary valve closes once self-maintenance and the shift in the supplementary-valve controls that is provided thereby have been discontinued, eliminating any potential bypass flow parallel to the flow through the choking device on the part of the flow through the valve.
Patent DE-3469433-D1 (DE)
Title: Improvements in or relating to winches
Inventor: WEBB JOHN THOMAS HIRD
IPC: B66D3/06
Filed: 1984-04-27
Granted: 1988-03-31
Abstract: A winch comprises a capstan (2) provided with a plurality of circumferential grooves (11). The grooves (11) comprise a high friction material and the density of the material of each groove (11) is different, so that the coefficient of friction of the cable bearing surface increases from the load end to the tail end of the capstan (2).
Patent DE-3475630-D1 (DE)
Title: Method and apparatus for drying tubular knitted fabric
Inventor: DIGGLE EDMUND A
IPC: D06B15/09
Filed: 1984-10-27
Granted: 1989-01-19
Abstract: Wet tubular knitted fabric is laterally distended to a smooth flat form before following a V-shaped path around a nozzle.  High velocity gas pref. at an elevated temp. e.g., steam is discharged through the fabric.  Adjustment of input and exit speeds maintain the fabric under tension and in contact with the nozzle; fabric elongation reduces its width on either side of the nozzle. After passing the nozzle, the fabric is immediately distended to a predetermined width before completing its drying process whilst still warm and possibly loosely folded. The gas velocity is pref. close to the speed of sound.  The fabric may be impregnated with foam based chemicals.
Patent DE-3478709-D1 (DE)
Title: Sectional frame
Inventor: RIXEN EDGAR
IPC: F16B7/04
Filed: 1984-07-18
Granted: 1989-07-20
Abstract: 1. Sectional frame (10, 11, 12) particularly of light metal sections, which are provided with a longitudinally bored central core (17) and has longitudinal grooves (21) undercut in its outer surfaces (23), two of which form a mutually opposed pair relative to the central core (17), wherein two profile sections (10, 11) are assembled at an angle and are held together by a connecting screw (27) which is arranged its screw head (29) enabling drawing together with this screw (27) disposed in the undercut of a longitudinal groove of one of the assembled profile sections (11) and is screwed with the screw thread from the end of the second profile section (10) into its central core (17) provided with an internal screw thread, characterised in that the screw head (29) of the connecting screw (27) is arranged in the undercut (21) of the first profile section (11) adjacent the second profile section (10), which has at least one screw adjusting bore (25) running transversely through its central core (17).
Patent DE-3482726-D1 (DE)
Inventor: HUGHES CHARLES JOSEPH
IPC: G01S5/02
Filed: 1984-04-26
Granted: 1990-08-23
Abstract: A vehicle route finding system whereby a vehicle borne receiver (10) picks up signals from a radio navigation system (14, 15, 16, 23), such as the Loran-C system, and transmits data related to its location to a central station, via the data channel on a radiotelephone link. At the central station a computer (16) determines the vehicle's position from the Loran data and, knowing its desired destination, retransmits routing information back to the driver. True position values additionally transmitted from the vehicle are used to compensate for propagation errors.
Patent DE-3564218-D1 (DE)
Title: Intaglio printing machine
Inventor: ICHIKAWA IEYASU
IPC: B41F11/02
Filed: 1985-08-05
Granted: 1988-09-15
Abstract: 57 An intaglio printing machine includes a plate cylinder (36) having a plate (37) thereon, a pattern roller (38) having projections (38a) which are in rolling contact with the outer surface of the plate, and an inking unit (42) with a duct roller (39) which is in rolling contact with the patern roller, wherein the duct roller (39) has substantially the same diameter as that of the pattern roller (38) which includes the projections, and ink holding recesses (39a) having different depths corresponding to those of the plate are formed in the outer surface of the duct roller along the circumferential and axial directions thereof.
Patent DE-3575697-D1 (DE)
Inventor: MENELL HANS DIPL ING
IPC: B29D30/24
Filed: 1985-09-17
Granted: 1990-03-08
Abstract: The build-up drum of build-up machines is frequently interchangeably mounted on its drive shaft in order to be able to adapt to changes in dimension in the production program with one and the same machine. If the operating and control elements associated with the drum bear directly against the end walls of the drum, each change of the drum requires considerable expense for adjustments and alignments. This is avoided by providing the build-up drum on both sides with a respective spacer and abutment sleeve against which the movable operating and control elements can bear in a constantly uniform orientation relative to the middle of the drum as the critical reference plane.
Patent DE-3581351-D1 (DE)
Inventor: SAKAMOTO HITOSHI C O SONY CORP
IPC: G11B5/592
Filed: 1985-09-25
Granted: 1991-02-21
Abstract: An automatic tracking apparatus for use in a video tape recorder including a magnetic head mounted on a piezo-electric element. The automatic tracking apparatus includes a driving pulse generator which generates a driving pulse signal causing the piezo-electric element to drive the magnetic head. The driving pulse signal has a waveform including a lumping portion causing the magnetic head to jump from one recording track to another recording track, which generates ringing vibrations in the piezo-electric element in a change-speed reproduction mode. An inflection point is imposed on the jumping portion of the driving pulse signal waveform. The position of the inflection point is determined in accordance with the amplitude level of the ringing vibrations so as to minimize the amplitude level of the ringing vibrations.
Patent DE-3584310-D1 (DE)
Inventor: STERNAD ROLF
IPC: H03F1/52
Filed: 1985-05-04
Granted: 1991-11-14
Abstract: The circuit has a resistor (13) connected between the base of a driver transistor (3) and the collector of a compensation transistor (12).  A series circuit contg. a diode (14) and a resistor (15) is connected in series with the resistor (13). The junction of the series diode and resistor is connected to the base of a protection transistor (16) whose emitter and collector are each connected to a base of a driver transistor (3,4). The resistor (13) connected to the first driver transistor's (13) base is selected so that the collector emitter voltage of the compensation transistor is smaller than the threshold voltage of the series diode (14) and the base-emitter diode of the protection transistor (16).
Patent DE-3585618-D1 (DE)
Inventor: BROWN L
IPC: C12N15/09
Filed: 1985-10-16
Granted: 1992-04-16
Abstract: A method for treating corneal stromal wounds to promote regeneration of the affected tissue is provided. This method employs recombinant human epidermal growth factor.
Patent DE-3585750-D1 (DE)
Inventor: TAKAGI YUUJI
IPC: G11B20/18
Filed: 1985-06-12
Granted: 1992-05-07
Abstract: An information recording and reproducing apparatus records and reproduces information in and from a recording medium including an information recording region divided into a plurality of sectors. In recording and reproducing information in and from the recording medium, each sector includes a sector address part formatted and a data recording part for recording data. A predetermined signal is overwritten in the address of a sector thereby making reproduction of the address impossible to prevent data from being recorded again by error in the sector containing data, while at the same time protecting the writing in the sectors. In data recording, on the other hand, the address signal from the recording medium is binary-coded at a different level to detect a sector of unstable address reproduction, so that a predetermined signal is overwritten in the address of this sector to make subsequent reproduction of the address impossible, thus permitting recording only in the sectors of stable address reproduction for stable data reproduction. Further, an optical disc having sectors of stable address reproduction alone detects a sector of unstable reproduction at the time of inspection, and overwrites a predetermined signal in the address part of the particular sector to make subsequent reproduction of the address impossible.
Patent DE-3660830-D1 (DE)
Title: Dowel sleeve
Inventor: SCHIEFER ERWIN
IPC: F16B13/08
Filed: 1986-06-13
Granted: 1988-11-03
Abstract: An axially extending anchoring bush has a pair of opposite ends with a blind borehole extending axially into the bush from one end with the blind borehole arranged to receive and secure an anchor bolt. The bush has at least three generally axially extending slots ranging from the end opposite the end in which the blind borehole is formed toward the other end. Each slot is located in a different plane with the planes extending obliquely of the axis of the bush. Slots extend inwardly from the axially extending outer surface of the bush and intersect inwardly of the outer surface. The planes of the slots define the axially extending sides of a pyramidally shaped expansion member located inwardly of the slot.
Patent DE-3665337-D1 (DE)
Title: Method of manufacturing building panels.
Inventor: BRAUCHL PETER
IPC: E04C2/38
Filed: 1986-05-02
Granted: 1989-10-05
Abstract: 1. Method for the production of panel-like structural elements, especially wall panels for the construction of prefabricated wooden houses, wherein impregnated wooden frames (1, 2, 3) are produced and are initially clad on one side, and water glass is sprayed into the recess defined by the frame and the one-sided cladding (panel 4a), and wood fibre (5) is then placed layer by layer in said recess in layers of a thickness of about 2 cm as an insulating material and the layers are each sprayed with water glass, and this operation is repeated until said recess has been filled completely and finally the second cladding (panel 4b) sprayed with water glass is installed.
Patent DE-3665765-D1 (DE)
Title: Installation for heating liquids at different temperature levels
Inventor: AUSTRUY GEORGES
IPC: F24H1/10
Filed: 1986-07-15
Granted: 1989-10-26
Abstract: The present invention relates to a process and installation for heating liquids at different levels of temperature, comprising a first vat containing a first liquid heated by an exchanger immersed in this liquid and connected to the exit of a burner, and a second vat containing a second liquid into which a diffusing system is immersed and connected to the exit of the exchanger, while a pump ensures the transfer of the liquid from one vat to the other.
Patent DE-3672557-D1 (DE)
Inventor: BAUER GUSTAV
IPC: H04B/
Filed: 1986-04-08
Granted: 1990-08-16
Abstract: PCT No. PCT/SE86/00162 Sec. 371 Date Dec. 12, 1986 Sec. 102(e) Date Dec. 12, 1986 PCT Filed Apr. 8, 1986 PCT Pub. No. WO86/06567 PCT Pub. Date Nov. 6, 1986.In particular, there are provided in accordance with the invention a method and apparatus for adjusting a digital equalizing filter in a hybrid circuit in a telecommunication system for transmitting digital information in duplex on a single line pair with simultaneous adaptive echo elimination and adaptive elimination of noise caused by intersymbol interference, where a first and a second compensation signal (e(t), i(t)), which are respectively dependent on the stored parameters of a digital balance filter and an equalizing filter, are subtracted from a received signal (a(t)+e(t)+i(t)) to form a difference signal (r(t)) which is compensated for noise respectively caused by echoes and intersymbol interference, the balance filter parameters being corrected with the aid of a correction signal ( epsilon B kappa ) dependent on the difference signal (r(t)). The equalizing filter parameters are adjusted with the aid of a further correction signal ( epsilon U kappa ) formed by the balance filter correction signal ( epsilon B kappa ) and the first compensation signal (ê(t)) such that the further correction signal ( epsilon U kappa ) will substantially agree with the balance filtercorrection signal ( epsilon B kappa ), but obtain the value zero when the first compensation signal (ê(t)) and the balance filter correction signal ( epsilon B kappa ) are both positive simultaneously or negative simultaneously. There is thus prevented the correction sequence of the equalizing filter parameters when the balance filter parameters are changed in a direction such that the absolute value of the estimated echo (ê(t)) increases.
Patent DE-3684694-D1 (DE)
Inventor: HAWKINS WALLACE H
IPC: B62D53/08
Filed: 1986-07-11
Granted: 1992-05-07
Abstract: A system including an anti-jackknifing abutment apparatus (FIGS. 1-4, 7, 8) and electrical (FIG. 5) and hydraulic (FIG. 6) controls provides system control which controls limited relative angular movement between an articulated tractor 10 and trailer 20. An engagement driver in the form of cylinder 36 mounted within a rigid frame 23 is mounted by a mounting bar 25 to a forward beam member 22 of the trailer 20 for moving a abutment element 28, 128 into and out of an engagement zone within the longitudinal V-slot 17 of the fifth wheel 14. The abutment element in position on a rotational swing of the articulated vehicle is contacted by ears 18 of the V-slot, where due to the structure of the apparatus, the further rotational movement may be arrested or controlled to permit adjustment of the rotational limit of further angular movement under control of the driver. The system can be adjusted and controlled to permit adaption of the moving vehicle to various road and rig movement conditions, acting to prevent dangerous jackknifing from occurring.
Patent DE-3686727-D1 (DE)
Inventor: LE CLERC DE BUSSY JACQUES
IPC: C10B53/02
Filed: 1986-05-26
Granted: 1992-10-15
Abstract: PCT No. PCT/FR86/00177 Sec. 371 Date Jan. 9, 1987 Sec. 102(e) Date Jan. 9, 1987 PCT Filed May 26, 1986 PCT Pub. No. WO86/06930 PCT Pub. Date Dec. 4, 1986.New product consisting of wood which is torrefied between 250 DEG  and 280 DEG  C. in a non oxidizing atmosphere, in the form of sticks of uniform length: 15 mm for example and having a diameter comprised between 5 and 20 mm, which are not disbarked. The preparation of the method comprised the obtention by culture of rectilinear ligneous rejections, the cutting, drying and torrefaction thereof preferably in a vertical reactor (101) where the material to be torrefied (115) is traversed by a gas stream circulating at high speed.
Patent DE-3770023-D1 (DE)
Inventor: LUGLI CARLO
IPC: A24F13/04
Filed: 1987-02-25
Granted: 1991-06-20
Abstract: The mouth-piece comprises a tubular body (2) which accommodates a filter element (4) which defines, with the inner walls of the tubular body (2), a first collection chamber (5) for the combustion products, while a second collection chamber (6) for the condensation products is defined in the same tubular body (2) by a slot (11) which extends into the tubular body (2) and is rigidly connected thereto. The filter element (4) has a nucleus (4a) of truncated cone shape, which is completely inserted inside the tubular body (2) and has a face (4d) in abutment with the end of a cigarette (7).
Patent DE-3772962-D1 (DE)
Inventor: MICHEL DIETER DIPL ING
IPC: G01B11/00
Filed: 1987-11-17
Granted: 1991-10-17
Abstract: The photoelectric measuring arrangement has an illuminating unit and shiftable grid for producing at least two curved irradiating partial beams brought to interference in a coupler with an associated optical circuit assembled on a substrate the integrated optical circuit also embodying the illuminating unit (L'). The illuminating unit may be a semiconductor laser.  There may be a substrate (S') on which the partial beams are made incident.  On the substrate there can be two coupling devices (+H',-H').
Patent DE-3786284-D1 (DE)
Inventor: PRASNIK GOTTFRIED
IPC: F42B3/16
Filed: 1987-02-23
Granted: 1993-07-29
Abstract: The mechanically released ignition element for a detonator, is followed by delay and initiator charges. It has a thin inner sleeve (8) and a thick outer sleeve (7) with a thin end wall (10) remote from the inner sleeve, which is shorter, and which also has a thin end wall (11). Between the two end walls is a space forming a chamber holding the ignition charge (9) which is made of a fast acting initiator substance. The thick outer wall reduces in size towards the other end, being tapered. Both walls are open at this end, being bent inwards.