baber/WOPTO huggingface dataset:
Patent DE-2934942-A1 (DE)
Title: Gas laser ignition and operating circuit - has transformer with constant or variable frequency circuit using switching transistor in primary winding
Inventor: KARZMARZYK MANFRED DIPL ING
IPC: H02M3/335
Filed: 1979-08-29
Abstract: A transformer (6) has its primary (7) connected between a positive voltage connection (8) and an oscillator, giving a constant frequency. Between the secondary winding (5) and the tube is a series diode (4). In parallel with the secondary winding is a capacitor (2). Pulses (13) developed by the oscillator are built up across a resistor (3) between the other ends of the tube and secondary winding. The oscillator uses a switching transistor (9) in parallel with an ohmic resistor (11) and a diode (12). Between this transistor and the diode is a capacitor (10). An alternative circuit uses a variable frequency system.
Patent DE-2938463-A1 (DE)
Title: Control system for dental drill hose pump - has timer to control reversing of drive motor on switch off to prevent liquid leakage and contamination
Inventor: WOELFLE WILFRIED ING GRAD
IPC: A61C1/05
Filed: 1979-09-22
Abstract: The pump for a dental drill has a control system for the pump motor which operates so that after the motor has been switched off, it is driven in the opposite direction for a short time. This prevents leakage each time the pump is used, thus preventing contamination of the eouipment. The pump can be turned through a half rotation after switching off. The pump is reversed at a fixed speed independently of the speed of rotation in the other direction, this being controlled by a foot pedal. A timing device is triggered by starting signals when the pump motor is switched off and output signals are obtained for a determined period of time which operate a relay controlling the direction of rotation of the motor and also a switch for the motor power supply.
Patent DE-2939489-A1 (DE)
Inventor: WOBORSCHIL WALTER DIPL ING
IPC: G06F3/037
Filed: 1979-09-28
Abstract: A system for localizing a region of a display incorporates a plurality of resettable counters for defining the position and extent of a cursor in two dimensions. Data is set into the counters periodically at the beginning of each frame, or at the beginning of each scanning line, so that the size and shape of the cursor is selectable, as well as its position on the display. When the data is modified during successive time periods, the cursor can be made to progressively reduce its size so as to indicate a point, and/or to progressively change its location.
Patent DE-2941226-A1 (DE)
Title: Starter for gas-discharge lamp - uses timing circuit to control gas-turn-off thyristor supplying heating current
Inventor: KALBERLAH KLAUS DIPL ING DR RE
IPC: H05B41/06
Filed: 1979-10-11
Abstract: The starter has a timing circuit controlling a gate-turn-off thyristor that interrupts the lamp's heating current when the inductive voltage pulse needed to turn the lamp on has reached its maximum. The voltage at the thyristor remains for as long as a voltage is applied to the lamp. The timing circuit defines a preheating time of the order of 1 second. The lamp is a low-pressure fluorescent lamp supplied from 220V ac and has a conventional preheating circuit.
Patent DE-2952184-A1 (DE)
Title: Rotating cutter for machining stationary brake lining - has swarf suction line contg. chamber having rotating and stationary portion
Inventor: KINDERMANN GOTTFRIED
IPC: B23B5/04
Filed: 1979-12-22
Abstract: The arrangement is intended for machining the brake lining of a vehicle brake whilst the lining carrier is stationary and the cutting tool head rotates. A suction line extends from an inlet opening near the cutting edge of the tool and rotates with the head. This line carries the cuttings away and contains a two-part collecting chamber of which one part rotates with the head whilst the other is stationary and connects to the suction blower. The rotating part of the chamber may be arranged between the head and its drive motor whilst the motor shaft passes through the stationary part.
Patent DE-3005808-A1 (DE)
Title: Carburettor for IC engine - has hollow float with air and fuel openings to facilitate initial setting up
Inventor: SCHWANDER DIETER
IPC: F02M5/16
Filed: 1980-02-16
Abstract: The carburettor has a float chamber (2) which contains a float (5). The flaot controls a needle valve (3) on the fuel inlet into the chamber. The float has a hollow space (7) inside it. The space has a connection (8) to the air space above the fuel in the chamber and a connection (9) to the liquid fuel in the chamber. The cross section of the connection to the fuel is smaller than the cross section of the connection to the air space. The flow through these connections dampens the oscillation of the float when the needle valve is calibrated and adjusted. In subsequent operation the float behaves normally.
Patent DE-3007706-A1 (DE)
Title: Greenhouse heating energy fence - has transparent elastic casing for fluid whose colour can be altered
Inventor: HOELTER HEINZ ING GRAD
IPC: A01G9/24
Filed: 1980-02-29
Abstract: The energy fence is for use in heating greenhouses etc. using solar radiation, and comprises a heat-absorbent casing enclosing the fluid and of transparent elastic material. The fluid is coloured as necessary, to vary the degree to which the sunrays can pass through., and also regulate the effect of ultraviolet rays on the plants.
Patent DE-3011156-A1 (DE)
Title: 1-Cyclomexyl-carboxamido-methyl-isoquinoline derivs. mfr. - by catalytic hydrogenation of unsatd. precursors
Inventor: POHLKE ROLF DR
IPC: C07D217/14
Filed: 1980-03-22
Abstract: Prepn. of 1-(cyclohexylcarboxamidomethyl) -1,2,3,4-tetrahydro- isoquinoline derivs. of formula (I) is effected by catalytic hydrogenation of isoquinoline derivs. of formula (II). R1 and R2 are H or R1+R2 is COCH2; R3, R4, R6 and R7 are H or Me; R5 is H, Me, Cl or NH2; R8 is H, OH or Me; R9 is CN nand R10 is COR14, or R9 is CHR7-NR2-COR14 and R10 is R1; R11 and R12 are H or R11+R12 is a C-C bond; R13 is R5 or NO2; R14 is a phenyl or 1-cyclohexenyl gp. opt. substd.by OH or Me. (I; R1+R2 = COCH2) are anthelmintics useful for control of tape worms and schistosomiasis. (I; R1 = R2 = H) are intermediates for such anthelmintics. The process avoids the use of malodorous cyclohexanecarboxylic acid derivs.
Patent DE-3014377-A1 (DE)
Title: Direct lever action rotary piston IC engine with triangle rotor layout - has sealing rotor between and pressed against other two rotors to form working chambers
Inventor: DILLEN SEN PETER MARTINUS
IPC: F01C1/20
Filed: 1980-04-15
Abstract: The direct-lever-action rotary piston IC engine basically has three rotors shaped and arranged to permit the formation of compression and explosion chambers demonstrating the necessary sealing qualities. The rotor axes form apices of a triangle. A sealing rotor (6) has projections and recesses so that, in combination with the casing (3) and the other two rotors, compression (C) and explosion (B) chambers are formed and communicate as the three rotate synchronously. Slide-mounting the sealing rotor permits pressing it against the others which also have radially-mobile projecting sliders (1) bearing against the casing. Spring-loaded loose liners provide the sealing elsewhere.
Patent DE-3014616-A1 (DE)
Title: Funeral shroud for corpses - comprising upper and lower foil bag joined by sliding clasp fastener
IPC: A61G17/06
Filed: 1980-04-16
Abstract: Shroud for a corpse is a bag made of foil material to suit the inside shape of a coffin. It consists of a lower part, and an upper part which is joined airtight to the former by a sliding clasp fastener. The entire shroud is made of a material, which easily decomposes when moisture has access, and carries on the inside a coating of cellulose, cellulose derivatives or polyvinyl acetates. Alternatively, the entire shroud can be made of a transparent foil on the basis of polyvinyl alcohol of several mu thickness. This prevents any objectionable smell and does not impede the natural decomposition of the corpse after interment.
Patent DE-3014620-A1 (DE)
Title: Modified calcium carbonate contg. other cations of specified radius - has increased acid resistance and is useful in paper mfr.
Inventor: BAUMEISTER MANFRED DR
IPC: C09C1/02
Filed: 1980-04-16
Abstract: Modified CaCO3 has pt. of the Ca cations replaced by cations with a cationic radius of 0.53-1.34 (0.68-1.20) Angstrom, pref. Li(+), Mg(2+), Ba(2+), Sc(3+), Y(3+), La(3+), Mn(2+), Co(2+), Ni(2+), Cu(2+), Ag(2+), Au(3+), Zn(2+), Cd(2+), Ge(4+), Pb(2+) and/or lanthanide, esp. Zn, Mg and/or Li cations. 0.05-10 (0.5-8, esp. 3-6) wt.% of the Ca cations are replaced, pref. only on the surface of the CaCO3 particles. Preparation consists of an (aq. 60-80 (70) wt.%) suspension of CaCO3 particles mixed with an aq. (0.1-15, esp. 5-10 wt.%) soln. contg. the required cations and the modified CaCO3 particles are isolated and dried if necessary. The mixt. of suspension and aq. soln. has pH 3-6.5 (4-6). It is pref. to use an aq. soln. of a Zn salt, esp. a Zn halide. The modified CaCO3 has increased acid resistance. It is esp. useful in paper mfr.
Patent DE-3015437-A1 (DE)
Title: Duplex digital information transmitter-receiver - has frequency shift keying for processing modulated digital data to minimise disturbances
Inventor: KLOEBER PETER DIPL ING
IPC: H04L27/10
Filed: 1980-04-22
Abstract: The duplex transmitter receiver unit for modulated digital information is designed to minimise disturbance effects. The system has a transmission modulator (1) with two input (A,B) and a coupled oscillator (2) that is coupled into a circulator (3). One input (A) receives binary transmission data and the other (B) has a third base frequency to control the oscillator. The transmitter frequencies (f1,f2,f3) is coupled over the circulator to the antenna. The receiver has a mixer (5), amplifier (6) and mixer (7). An auxiliary oscillator (8) is controlled by a transmission modulator (9). A filter circuit (10,11) controls a demodulator (12) to generate the binary data.
Patent DE-3021062-A1 (DE)
Title: Energy saving electric motor drive for wood processing machinery - uses flywheel interposed between drive motor and circular saw blades
Inventor: LOEBNER ANDREAS DIPL ING
IPC: B23Q5/10
Filed: 1980-06-04
Abstract: The saw mill processing machinery layout consists of an electric motor (5c), coupled to a large flywheel (2), which in turn, is coupled to the circular saw blades (1). Some of the energy required by the saw (1), is extracted from the flywheel (2) and fed back to the latter during the pause in production due to the time taken to feed fresh timber in. To obtain a sufficiently high energy exchange in the motor-flywheel-drive shaft system, fluctuations in revolutions are necessary which are not obtainable with a normal A.C. squirrel cage motor. Therefore, drive systems are required which permit these large fluctuations within the parameters of the production process requirements. This can be achieved by using a motor with a 'soft' characteristic e.g. slip ring motor, allowing fluctuations of up to 10 per cent of the nominal revolutions. Thus, with optimum feed spaced, smaller motors than previously can be used, where not only the maximum demand on the supply network is reduced, but for a comparatively similar energy yield to the saw blades, less energy is drawn from the supply.
Patent DE-3023484-A1 (DE)
Title: 3-Di:halo:vinyl-2,2- di:methyl-cyclopropane- carboxylic acid ester(s) - prepd. by esterification of the acids with 3-phenoxy-alpha-vinyl-benzyl:alcohol cpds., used as insecticides and acaricides
Inventor: SCHWARZ GERD-ULRICH DIPL CHEM
IPC: A01N53/00
Filed: 1980-06-24
Abstract: Racemic-cis-3-dihalovinyl- 2,2-dimethylcyclopropane carboxylic acid alpha-vinyl-3-phenoxybenzyl esters (I) are new (where R1 and R2 are halogen; and R3 is H, halogen or 1-3C alkyl). (I) are pref. prepd. from (I) and (II) by esterification. The esterification can be carried out e.g. by converting the acid to (II) into the halide and reaction of this with the alcohol (III); conversion of the alcohol (III) into a halide and reaction of this with the acid (II); condensn. of the acid (II) with the alcohol (III); or conversion of the acid (II) into an ester and trans-esterification of this with the alcohol (III). (I) are insecticides and acaricides with much higher activity than the corresp. trans isomers. They are suitable for use in plant protection, as well as in the hygiene, stored prods. and veterinary sectors. They are advantageously used in combination with pyrethroid synergists such as piperonyl butoxide.
Patent DE-3023872-A1 (DE)
Title: Trap door locking mechanism - has pull rod operated swivel arm in lock housing with one end moving spring-loaded catch bolt
Inventor: HENKE WILHELM
IPC: E05C1/14
Filed: 1980-06-26
Abstract: The locking mechanism is fitted in the proximity of the trap door frame (12) with a catch bolt (15), cooperating with an angle piece (14) fitted to the inner surface of the frame section by a screw (13). The catch bolt has a curved end surface (16). In its inner cavity (17) swivels a two-arm lever (18). A spring (24) urges one end in a recess (25) of the catch bolt, while the other end rests against the catch bolt in the locked position. The catch bolt slides inside a housing (34) operated by one arm (19) of the lever, resting against the surface (26) of the catch bolt cavity. The other arm (20) lever is operated by collar (33) fitted on a pull-rod (29) through the trap door leaf (10).
Patent DE-3024014-A1 (DE)
Inventor: LEUTHOLD OSKAR DIPL ING
IPC: H03D1/18
Filed: 1980-06-26
Abstract: The converter comprises a first MOS transistor fed by a current source or by a current-limiting element and it receives through an input capacitor the alternating input voltage. The first transistor is biased by a second MOS transistor the distance drain-source of which is connected between the gate and the drain of the first transistor. The second transistor is biased on its gate by a voltage of reference in such a way that its equivalent internal resistance takes a very high value. A filter capacitor is connected between drain and source of the first transistor. A direct voltage is delivered on the drain of the first transistor the value of which being function of the amplitude of the alternating input voltage. The converter can be implemented by any conventional technology for MOS integrated circuits because it uses only standards elements which are easily integrated.
Patent DE-3025537-A1 (DE)
Inventor: BOEHM ARTHUR
IPC: F16L7/00
Filed: 1980-07-05
Abstract: 1. Spacer for the support of tubes within other tubes, especially for holding the tubes of tube postal systems within protective tubes, consisting of concentrically arranged rings (10-13), which are held spaced from one another by connector elements (14, 16, 38, 39), whereby the inner ring (10) has a central opening to receive the tube to be supported and the outer ring (13) is provided for mounting on the inner wall of the outer tube, characterized in that more than two rings (10-13) are provided, of which the connecting elements (14, 16, 38, 39) between adjacent rings (10-13) are separable, so that a suitable number of the outer (13, 12) and/or inner rings (10, 11) are removable, to provide diameter adjustment.
Patent DE-3027685-A1 (DE)
Title: Solidifying radioactive waste for storage - from mixture of conc. liquid effluent solid waste and cement
Inventor: BAYER WOLFGANG DR
IPC: G21F9/16
Filed: 1980-07-22
Abstract: Prodn. of solid radioactive waste for final storage in containers consists of mixing one or more liquid and/or dried radioactive wastes with inactive cement, and feeding the product into storage containers. In particular empty or partly filled containers fitted with rolling tyres may be used. Process is for the permanent disposal of radioactive waste from nuclear power plants etc., in particular used resins, evaporated concentrates, scrap machine components and the like. In particular evaporator concentrates having a maximum solids content of 20-30% (claimed) originating from the evaporation of radioactive liquid effluent may be stored in this way. The method achieves a substantial reduction in the volume of the material to be stored, amounting to approx. 20% over a fairly long period.
Patent DE-3032894-A1 (DE)
Inventor: BELL MICHAEL-FRANCIS DR
IPC: C04B35/00
Filed: 1980-09-01
Abstract: Mixed crystals of the general formula Na1+xM2-1/3x+ySixZ3-xO12-2/3x+2y wherein M represents one of the transition metals of the Fourth Group of the Periodic System, Zr, Ti, Hf or mixtures thereof, Z represents one of the elements of the Fifth Group of the Periodic System, P, Sb, Bi, V, Nb, Ta or mixtures thereof, and x represents a number from 0.01 to 3, and y a number from 0 to 0.5, are new, and are suitable as ion-conducting electrolyte in electrochemical cells.
Patent DE-3035706-A1 (DE)
Title: Sports shoe for indoor use - with rubber insert of specified hardness in ball region of polyurethane foam outsole
Inventor: SCHMOHL MICHAEL W DIPL KFM
IPC: A43B13/22
Filed: 1980-09-22
Abstract: A sports shoe, esp. for indoor sports, is made of a soft plastic material such as polyurethane foam. The outsole carries a pattern which is arranged in a circle around the centre of the ball of the big toe. An insert which corresponds to a small circle around this centre and concentric to the rest of the pattern consists of a sole rubber of greater hardness. Its preferred Shore hardness A range is between 55 and 75 deg. (65 deg.). This provides a better non-slip property for the shoe on wooden flooring and a safer feeling to the wearer.
Patent DE-3043801-A1 (DE)
Title: Regulator for HV supply for TV tube - which changes resonant frequency of line transformer to provide voltage correction
Inventor: BOHN JOSEF DIPL ING
IPC: H04N3/185
Filed: 1980-11-20
Abstract: The application is typically to television monitors in which the high direct voltage for the cathode ray tube is obtained by rectifying the output of the line transformer. The regulation of the voltage level is achieved by adjusting the resonant frequency of the transformer output circuit. In series with the output winding (W2) is an inductor (W3) and capacitor (C1) which together form a resonant circuit which determines the line return impulse. The inductor is made in the form of a transductor (TD) whose control winding (W4) is used to determine the effective inductance (W3) in parallel with the capacitor (C1). By changing this value the resonant frequency can be trimmed to give the desired voltage output from the rectifier (HGL). The circuit can be responsive to the primary winding (W1) current, or to an error signal resulting from the comparison of the rectified voltage with a reference voltage (Z).
Patent DE-3046952-A1 (DE)
Title: Lost formwork form board - is pref. corrugated hollow plastic unit with shaped stiffener
Inventor: MAYR FRIEDRICH
IPC: E04B2/86
Filed: 1980-12-12
Abstract: A sidewall (1) with a shaped stiffening piece is incorporated in a hollow plastic unit serving as form board for lost formwork. This side can be corrugated, with a succession of ribs (3) welded to ribs on the other side (2). Ribs may have slots (4) on their longitudinal sides, and can be open, or have openings, at their ends. The board's narrow sides may have protruding strips (6); or one narrow side may have a tongue and the other a groove. The board can be blown into shape from a plastic tube, with the openings also providing for needle insertion.
Patent DE-3106056-A1 (DE)
Title: Coking plant feed mixture having coal binder
Inventor: WESKAMP WILHELM DR ING
IPC: C10B57/04
Filed: 1981-02-19
Abstract: In a coking plant feed mixture having a coal binder, which consists, in particular, of coal-tar pitch and/or coal-oil preparation residues and/or oil refinery residues, an undesirable shrinkage and similar disadvantages resulting from adding the coal binder are avoided by adding 0.1-0.3% light heating oil.
Patent DE-3107721-A1 (DE)
Title: Snap-action drive device for an electrical switching apparatus, especially for a medium-voltage load interrupter switch
Inventor: HOEGL VITUS
IPC: H01H3/30
Filed: 1981-02-28
Abstract: A snap-action drive device for an electrical switching apparatus has a rotation spring (3) which is supported on a spring carrier (4) with built-in prestressing. When a drive shaft (1) rotates, one of the ends (35, 36) of the rotation spring (3) is driven by driver elements (43, 44) on the drive shaft (1) in the sense of increasing the stress of the rotation spring (3), while the spring carrier (4) is initially still held firmly together with the switching shaft (2) by means of a locking device (10). In the course of the rotational movement of the drive shaft (1), before reaching a rotation angle which corresponds to the switching angle, the locking device (10) is released by a tripping device (23), so that the spring carrier (4) suddenly lags the drive shaft (1) under the force of the more strongly stressed rotation spring (3) and at the same time drives the switching shaft (2). Since the rotation spring (3) is held on the spring carrier (4) by built-in prestressing, which is never undershot, springing back of the switching contacts (for example in the event of switching on into a short-circuit) is always reliably trapped by a force corresponding to the built-in prestressing, and the switching shaft (2) is thus reliably pressed into the respective switching limit position with the switching contacts, and there automatically latches once again, by means of the locking device (10). <IMAGE>
Patent DE-3109100-A1 (DE)
Title: X-ray instrument
Inventor: FRIEDEL RUDOLF DIPL PHYS
IPC: H01J35/10
Filed: 1981-03-10
Abstract: The invention relates to an X-ray instrument for simultaneously producing a number of transverse-layer X-ray images of an object to be recorded (16). In such an instrument, in which the recording period is reduced compared with the production of single layer recordings, a number of X-ray tubes which are mounted offset with respect to one another on a rotating frame (1) is used. According to the invention, the great complexity of this is reduced by using a multiple-cathode X-ray tube (5) in which the cathodes are allocated to focal areas (6 to 8) which are in one line which extends transversely to the direction of scanning. An X-ray instrument according to the invention is particularly suitable for use in medical X-ray diagnostics. <IMAGE>
Patent DE-3110896-A1 (DE)
Title: Method for comminuting and activating limestone by reaction with carbon dioxide
Inventor: FAATZ ALBERT C
IPC: B01D53/50
Filed: 1981-03-20
Abstract: The invention relates to a non-mechanical method for converting coarsely ground limestone into a very fine powder. A slurry of ground calcium carbonate or limestone is admixed with gaseous carbon dioxide at high pressure, in order to convert the solid in the slurry into an unstable form. Then the carbon dioxide pressure is reduced abruptly, so that a slurry of activated calcium carbonate particles is formed whose particle size is considerably reduced. This slurry of activated calcium carbonate can be used for scrubbing exhaust gases <IMAGE>
Patent DE-3115157-A1 (DE)
Inventor: WUEST REINHOLD
IPC: B01D11/02
Filed: 1981-04-15
Abstract: 1. A process for the production of plant extracts having improved sensory properties, the plants initially being subjected to a first extraction with liquefied or supercritical gas, then to a second extraction with water or an organic solvent, after which the two extracts are combined and dried, characterized in that the plant ingredients obtained in the first extraction with liquefied or supercritical gas are deposited on a powder-from or granular carrier material in the separation vessel of the extraction apparatus, the extract obtained in the second extraction with water and/or a monohydric alcohol containing from 1 to 3 C-atoms is dried and optionally size-reduced and the two extraction products are combined by mixing.