baber/WOPTO huggingface dataset:
Patent DE-3134647-A1 (DE)
Title: Overvoltage-limited control of optically fired power semiconductors
Inventor: SCHRAEDER ALFONS DIPL ING
IPC: H03K17/78
Filed: 1981-08-29
Abstract: For the overvoltage-limited control of optically fired power semiconductors in which the light source connected between positive potential and neutral rail and the power semiconductor crystal are accommodated separated by an insulation gap in one housing, the light source (2) is connected in series with a transistor (15) which can be driven by a circuit keeping the current constant. The light source (2) and/or the transistor (15) are associated with ohmic series resistors (13) and a voltage limiter (10) and a combination of a capacitor and a further ohmic resistor are connected in parallel with an ohmic resistor (4) connected in series with the transistor (15). <IMAGE>
Patent DE-3139638-A1 (DE)
Title: Cylinder with piston and piston rod, in particular for control purposes
Inventor: MUELLER GERHARD
IPC: F15B15/28
Filed: 1981-10-06
Abstract: Cylinders with a piston and piston rod are often used for control purposes, monitoring of the piston position or of the distance travelled by the piston being required in many cases. The mechanical components hitherto used for this purpose were driven by the piston rod or the piston. To avoid the disadvantages which arise with mechanical components, the invention provides an arrangement which permits accurate monitoring of the position of the piston and of its motion in the cylinder by simple and low-cost means. This is achieved by virtue of the fact that the piston rod is provided with a magnetic surface coating for magnetic signals, which are applied and picked up by means of a magnetic head. The magnetic surface coating can cover the entire surface of the piston rod and the piston rod can be surrounded by an annular magnetic head. A strip-shaped surface coating is also possible. <IMAGE>
Patent DE-3146800-A1 (DE)
Title: Thermally controlled valve
Inventor: LINGNAU JOSEF
IPC: F16K17/36
Filed: 1981-11-26
Abstract: A thermally controlled valve having a two-piece valve housing (1, 4), a closing part (8), a bimetallic element (10) and having an adjusting device (5), which can be controlled from the outside, for the opposing bearing (11) of the bimetallic element (10). A compression spring element (12), which is supported by the housing part (1) holding the valve seat (7), acts on the side of the opposing bearing (11) facing away from the bimetallic element (10). The spring movement of the compression spring element (12) in the stress relief direction is limited by a pretensioning force which is greater than the bimetallic operating force provided. A compression-force transmission element (14) extends between the opposing bearing (11) and the adjusting device (5). Assembly and also dismantling of the valve is possible without manipulation on the adjusting device. <IMAGE>
Patent DE-3147279-A1 (DE)
Title: Device for piston-type briquetting presses
Inventor: HATLAPA ROLF
IPC: B30B15/28
Filed: 1981-11-28
Abstract: In a device for piston-type briquetting presses, a ram is connected via an overload safeguard to a drive. For this purpose, the ram is arranged above a piston and is supported in relation to the drive via an interposed chamber acting as a cylinder for the piston. For this purpose, the chamber is filled with oil and has a correspondingly adjusted overpressure valve. Furthermore, the chamber is connected to a line for feeding or draining oil, so that the piston, and thus the ram, can be adjusted in terms of its depth of penetration into the material.
Patent DE-3147320-A1 (DE)
Inventor: MUELLER WOLFGANG HANS EDUARD D
IPC: C07C47/04
Filed: 1981-11-28
Abstract: In a process for recovering pure methylal from methanol-methylal mixtures, which can optionally contain still further compounds, the separation conducted in a rectification device comprising two rectifying columns. In the first rectifying column, the mixture to be separated is rectified under a pressure lower than that in the second column, into a methylal-rich, methanol-poor distillate, and into a practically methylal-free, methanol-rich sump product. The methylal-rich distillate of the first rectification is then separated in a second rectifying column, operated under a higher pressure than the first rectification column, into a compound stream containing methanol and methylal, which is then recycled to the first rectifying column, and into pure methylal as the sump product. In a specific refinement, the first rectification is preferably operated under a pressure of 1-22 bar absolute and the second rectification preferably under a pressure of 9-30 bar absolute, with the second rectification being operated under a pressure which is at least 8 bar higher than that of the first rectification.
Patent DE-3200929-A1 (DE)
Title: Pressure reducer
Inventor: WELSCHEHOLD ARTUR
IPC: G05D16/06
Filed: 1982-01-14
Abstract: The pressure reducer, especially for the autogenous technique, has at least two concentrically arranged valve seats for the pressure-regulating valve, with one or more valve gaskets assigned to the valve seats. An outer valve seat is required preferably for low pressures to be reduced and an inner preferably for high pressures. According to the particular device, therefore, the pressure reducer can be used for high pressures, for low pressures or for both pressure ranges.
Patent DE-3201017-A1 (DE)
Title: Bollard made of castable material, in particular grey cast iron
Inventor: DENTZER GEORG
IPC: E01F9/638
Filed: 1982-01-15
Abstract: The invention relates to a bollard which is made of a castable material, in particular grey cast iron. Bollards of this type are used for blocking off roads or squares and can also have chains or ropes clamped between them to provide a fencing around monuments or similar structures. Previous designs were formed from solid cast iron and had a projection, serving for anchorage purposes, extending down under the normal traffic level. According to the invention, a considerable saving in weight relative to these extremely heavy designs is achieved if, starting from its base, the bollard has over part of its axial length an inner cavity which serves for receiving and fixing a fixing tube which projects outwardly beyond the base, the cavity having at least one cross-sectional reduction which, by deforming the inserted fixing tube, secures the latter against becoming detached.
Patent DE-3203537-A1 (DE)
Title: Method for transferring a specific gene from a genome into Escherichia coli
Inventor: LINDENMAIER WERNER DR
IPC: C12N1/21
Filed: 1982-02-03
Abstract: The invention relates to a method for transferring a specific gene from a genome into Escherichia coli.
Patent DE-3206268-A1 (DE)
Title: Arrangement for forming the actual current values of currents with harmonics
Inventor: MOSCHETTI ARMANDO DR ING
IPC: G01R19/00
Filed: 1982-02-20
Abstract: The invention relates to an arrangement for forming the actual current values of currents with harmonics of a three-phase voltage system, the frequency and amplitude of the fundamental oscillation of which can be adjusted by means of a pulse width modulator. The actual current values (iR, iS, iT) are continuously supplied to a sample and hold circuit (6). The sample and hold circuit (6) is connected at the output to an evaluating circuit (7) for forming the current amount (i) and the current phase angle ( phi i). The current amount and the current phase angle are input as control signals to the pulse width modulator (8). The input of the sample and hold circuit (6) is supplied with trigger signals (TR) for sampling the instantaneous actual current values ((iR, iS, iT). The trigger signals (TR) only occur at the times within the period at which the amount of the actual current value is equal to or essentially equal to the amount of the fundamental current oscillation. This largely eliminates the interfering influence of the harmonics in the detection of the actual current value. The trigger signals (TR) can be either precalculated or they are derived from the signals generating the timing of the pulse-width modulator (8). <IMAGE>
Patent DE-3209834-A1 (DE)
Title: Device for determining the displacement of a piston of a die-casting machine
Inventor: MOTOMURA NORIYUKI
IPC: B22D17/20
Filed: 1982-03-18
Abstract: Device for determining a displacement of a piston, and also of a piston rod, of a die-casting machine or injection-moulding machine, having a rectilinear rod which extends parallel to the piston rod and is connected to the latter in such a way that it moves with it, and having a measuring device which is arranged in the vicinity of the rod and detects the displacement of the rod magnetically. The rectilinear rod contains a nonmagnetic hollow tube, on the inside of which is arranged a magnet which has alternate north and south poles which are arranged at a constant spacing along the axial direction of the tube, and the measuring device is arranged around the tube, with the result that the tube can be displaced in its axial direction when the piston rod moves in order thereby to sample the strength of the magnetic flux which is caused by the north and south poles of the magnet in order to form electric output signals which represent the displacement of the piston rod.
Patent DE-3217879-A1 (DE)
Title: Magneto-dynamic installation
Inventor: SIDLOVSKIJ ANATOLIJ KORNEEVIC
IPC: H02J3/26
Filed: 1982-05-12
Abstract: The invention relates to the electromagnetic heating of metal. The installation according to the invention contains at least one inductor (4), at least one electromagnet (5) and a power supply which is connected to a multi-phase network. The power supply contains two autotransformers (1, 2) and a control capacitor (3). According to the invention, the autotransformers carry out a plurality of functions in the installation according to the invention. Thus, in the specific embodiment variants, each connects the functions of the supply source of the inductor (4) and of the electromagnet (5) to those of current balancing and compensation for the reactive power. At its most successful, the installation according to the invention can be used for preheating and metered casting of metals into casting moulds. <IMAGE>
Patent DE-3218636-A1 (DE)
Inventor: REITH HANS-JUERGEN
IPC: F23J15/00
Filed: 1982-05-18
Abstract: 1. Heating installation, with a boiler (10), in particular an oil- or gas-fired boiler and with a heat pump (12), to the evaporator of which the waste gases of the boiler (10) can be supplied, a neutralisation unit (22) with a neutralisation container (23) being provided, which contains an alkaline earth metal oxide as the neutralising agent (24), condensate containing acid formed at the evaporator of the heat pump (12) being able to be passed through this neutralisation container (23), characterised in that the neutralisation container (23) contains magnesium oxide as the neutralising agent (24), that a condensate pipe (27) opens on the under side into the neutralisation container (23), that the condensate can be passed in an upwards direction through the neutralising agent (24) in the neutralisation container (23) and that a collecting container (26) for residues is located on the under side of the neutralisation container (23).
Patent DE-3219973-A1 (DE)
Title: Automatic device for centring and mounting lenses
Inventor: BLASS ULRICH
IPC: G02B7/02
Filed: 1982-05-27
Abstract: An automatic device for centring and mounting lenses is described which is chiefly characterised in that the mounting spindle is vertical. The lens mounts are successively inserted, with already inserted lens, on this spindle by means of a gripping mechanism which transports these mounts to the spindle and back from a feed disc which is arranged next to the spindle and can be rotated in a stepwise fashion. Arranged coaxially above the spindle is a plunger which consists of an internal centring plunger and a sleeve-shaped mounting plunger embracing the latter. Both plungers can be displaced relative to one another in the axial direction against a spring force. After a mount with lens has been placed on the mounting spindle, the plunger is lowered. In this process, the inner centring plunger first strikes the lens and centres the latter. Thereafter, the actual mounting plunger strikes the mounting ridge of the lens mount and bends the latter over. The movements of the individual parts of the device are controlled in a properly timed fashion relative to one another by a control mechanism.
Patent DE-3226115-A1 (DE)
Title: Process for the continuous preparation of dissolved phenolic resins
Inventor: CONRAD ALEXANDER DR RER NAT
IPC: C08G8/08
Filed: 1982-07-13
Abstract: The invention relates to a process for the continuous preparation of dissolved phenolic resins which are used for the impregnation of natural and synthetic fibre materials, for example for the production of insulating boards, laminates or moulding compositions. The object of the invention is to carry out the process of dissolution of phenolic resin melts continuously, with solvent losses being excluded and environmental pollution due to emission of solvent vapours being avoided, and to carry out the continuous dissolution process in such a manner that the boiling point of the solvent is not exceeded. According to the invention, the preparation of the dissolved phenolic resins is carried out continuously in three process steps one immediately after the other, the polycondensation being carried out in the first step to a conversion of at least 50 % of the formaldehyde employed, the polycondensation in the second step being continued to a conversion of at least 80 % of the formaldehyde employed and the mixture simultaneously being concentrated by distillation to a solids content of at least 85 %. In a third process step, the phenolic resin formed is dissolved in a continuous dynamic or static mixer.
Patent DE-3227797-A1 (DE)
Title: Telescopic pipe
Inventor: SANNECK HUGO DR ING
IPC: A47L9/24
Filed: 1982-07-24
Abstract: In a telescopic pipe for vacuum cleaners, an intermediate layer (11) is mounted on the clamping device in the region of radially adjustable clamping jaws (7). In order thereby to be able to make the associated clamping surfaces on the clamping jaws (7) of smooth design for fixing said intermediate layer (11), the intermediate layer (11) is formed by a coating with a high friction value which is applied to the clamping surfaces and the adjacent region of the clamping piece (6). <IMAGE>
Patent DE-3228242-A1 (DE)
Title: Keyboard
Inventor: HEISS REINHOLD DIPL ING
IPC: H01H13/702
Filed: 1982-07-28
Abstract: Published without abstract.
Patent DE-3231203-A1 (DE)
Title: Process for the catalytic reforming of pyrolysates from solid fuels and organic wastes
Inventor: LINDEMANN ROLF W
IPC: F02B3/06
Filed: 1982-08-21
Abstract: For refining pyrolysis products into marketable products such as synthetic natural gas, gasoline, diesel and raw materials for the chemical industry, the pyrolysis of solid fuels and organic wastes is coupled with the catalytic reforming of the pyrolysate in one process step. Acidic mineral catalysts (for example aluminosilicates) are either directly mixed with the fuel or arranged spatially separately in the reaction space. Depending on the composition of the starting products and the desired end products, extraneous steam is fed for reforming.
Patent DE-3235300-A1 (DE)
Title: Arrangement for connecting components as well as tensioning and/or monitoring devices of lifting and/or lashing arrangements to straps
Inventor: SMETZ REINHARD DIPL ING
IPC: F16G11/00
Filed: 1982-09-21
Abstract: In an arrangement for connecting components (4) to straps (1) with a coupling member (2) in between, the coupling member (2) is provided with an interchangeable adaptor (3) rotatably mounted in the coupling member (2). By exchanging the adaptor (3), components (4) with connection heads (6) of different type can be connected by the coupling member (2). <IMAGE>
Patent DE-3237499-A1 (DE)
Title: Stepping motor for adjusting actuation elements
Inventor: DJORDJEVIC ILJA
IPC: H02P8/00
Filed: 1982-10-09
Abstract: A stepping motor for adjusting actuation elements is proposed, having an electronic control device in which the stepping motor is driven as a function of operating parameters with a respectively required number of actuation steps for the adjustment of a desired quantity of injected fuel, a preferred position of the actuation element (7) which is actuated by the stepping motor (17) being detected as a position acknowledgement by a signal generator circuit. At the same time, a limit position of the stepping motor actuator (15), by means of which a switch (20) can be actuated which is located in the signal generator circuit and which triggers a generator signal upon actuation, serves as preferred position. <IMAGE>
Patent DE-3243951-A1 (DE)
Title: Process and apparatus for the compression of foundry mould material
Inventor: KOEBEL ALFONS ING GRAD
IPC: B22C15/00
Filed: 1982-11-27
Abstract: In a process for the compression of foundry mould material, which is poured loosely over a model in a closed mould space, compressed gas acts on the surface of the mould material with a pressure of at most 8 bar, which is decompressed into the mould space from a pre-pressure space at a higher pressure through a closable opening between this and the mould space with a gas mass throughput of more than 50 kg/s and at a rate of pressure increase of more than 300 bar/s, the pressure in the pre-pressure space being at most 20 bar. An apparatus for performing the process consists of a pressure container, a mould box arranged below it with filling frame and model plate with model, and a valve, between the pressure container and the mould space, having an opening cross-section amounting to 50-150 % of the horizontal mould box cross-section and released by a closure element in a few milliseconds.
Patent DE-3246955-A1 (DE)
Title: Handle for pushing or pulling a suitcase on rollers
IPC: A45C13/26
Filed: 1982-12-18
Abstract: A handle for pushing or pulling a suitcase provided with rollers consists of a lower part (2) to be attached to the suitcase, an upper part (1) mounted pivotably on said lower part and serving as a handle, and a retraction spring (14) for the pivoted-out upper part. In order that the suitcase is in a stable position secure against tilting during pushing or pulling, the upper part is of angled construction and has a shorter leg (3) and a longer leg (4). The apex (5) is to be arranged in the region of an upper corner of the suitcase and the shorter leg is to be mounted pivotably in the region of the lock and handle side of the suitcase. <IMAGE>
Patent DE-3248170-A1 (DE)
Title: Substances or materials for producing moulds and cores for use in foundries, process for preparing such substances or materials, and use of pulverulent and/or granular substances
Inventor: CRISTALLI CAESARINO
IPC: B22D15/00
Filed: 1982-12-27
Abstract: The materials and substances of the present invention make it possible to obtain castings from any desired metallic alloy and in any desired dimensions, it being possible to impart to them an optimum crystallographic structure. In this way, the castings are provided with outstanding mechanical features and, especially in the case of cast iron, also with particularly good properties when bearing pressurised liquids without leakages. A characterising feature of the new substances or materials is that it is possible to control the thermal conductivity and the heat capacity of the moulds and the cores, in such a way that better and more uniform mechanical and structural characteristics are obtained when the thickness of the castings is varied, while selecting the components with controlled thermal conductivity.
Patent DE-3307808-A1 (DE)
Title: Co-ordinate carriage for a router usable in wood-working
Inventor: KOUKAL ANTON
IPC: B27C5/02
Filed: 1983-03-04
Abstract: A co-ordinate carriage for working a workpiece by numerical or follow-up control is designed as a structural unit which can be mounted on and fixed to the machine table of a working machine, in particular a router, for wood-working. The longitudinal carriage is displaceably guided on a guide shaft running in the X-direction and is supported, on the side of the machine table located opposite this guide shaft, by means of a supporting roller on a supporting bar fastened laterally to the machine table. The transverse carriage is displaceably guided on guide shafts between two longitudinal-carriage supports running at a lateral distance from one another in the Y-direction. The table top of the transverse carriage crosses the supports extending in the Y-direction at a distance of about 1 cm. The horizontal guide shafts of the transverse carriage run approximately level with the horizontal longitudinal mid-plane of the longitudinal-carriage supports. The transverse carriage is for its part provided with hollow-section supports which extend in the Y-direction and on which one of the Y-drives of the transverse carriage acts. A rack drive, the rack of which runs underneath the hollow-section supports of the longitudinal carriage and at right angles thereto, is provided as the X-coordinate drive.
Patent DE-3310724-A1 (DE)
Title: Shearing drum with supporting device
Inventor: WILDFOERSTER HEINRICH DIPL ING
IPC: E21C25/10
Filed: 1983-03-24
Abstract: The shearing drum for a mining machine consists of several spiral turns, surrounding the drum body and carrying loosening tools, and an end ring which is formed in a key shape, is likewise set with loosening tools over the periphery and is directed towards the coal face. To reduce axial movements and the consequences associated with them, such as wear, at least one rotatable supporting element, essentially flexibly linked in the axial direction, is provided on the drum body (1) inside the end ring (2) (Fig. 1). <IMAGE>
Patent DE-3328647-A1 (DE)
Inventor: BAUER MICHAEL
IPC: E04H3/24
Filed: 1983-08-09
Abstract: 1. Stage apparatus (10) having at least one stage platform (11), which is movable upwards and downwards essentially vertically to a base plane by means of a lifting device (19), having at least one transfer device (15), assigned to the lifting device (19) or to the respective stage platform (11), and having a storage device (12), assigned to the transfer device (15), in which energy being released during the lowering of the respective stage platform (11) is storable, which energy can be passed to the lifting device (19) by the transfer device (15) during the lifting of the stage platform (11) to reduce the total energy input of the said lifting device (19), characterized in that the storage device is designed as at least one container containing a pressurized medium for the storage of energy by increasing the pressure in the container, and the transfer device (15) has at least one pressure medium line (17), connected to the container, and a pressure cylinder device (13) connected to the said pressure medium line (17).
Patent DE-3343579-A1 (DE)
Title: Hinged centreboard for a sailboard or the like
Inventor: FICHTNER HANSI
IPC: B63B35/79
Filed: 1983-12-01
Abstract: A sailboard with hinged centreboard is described, where the centreboard, by means of a hinge arranged in or parallel to the longitudinal axis of the board, can be pivoted between a swung-in position, in which it lies flat against the bottom surface of the board, and a swung-out position approximately at right angles thereto. Two centreboards of this type are preferably arranged on either side of the centre axis of the sailboard. On downwind courses both centreboards lie flat against the bottom surface of the sailboard, while when heading into the wind the lee-side hinged centreboard is always swung out, as a result of which close-hauled tacking against the wind is possible.