baber/WOPTO huggingface dataset:
Patent DE-3231699-A1 (DE)
Title: Process and apparatus for producing a blackening or bluing oxide layer on the surface of iron-containing parts produced by powder metallurgy
Inventor: JOHNEN DIETER
IPC: C23C8/18
Filed: 1982-08-26
Abstract: A process and an apparatus for producing a blackening or bluing oxide layer on the surface of iron-containing parts produced by powder metallurgy are described. The parts are treated in a reaction chamber with an oxidising atmosphere at temperatures above 300 DEG C. This oxidising atmosphere is prepared from fuels burned sub-stoichiometrically at an apparent reaction temperature of T > 800 DEG C, and the combustion products are discharged from the combustion point directly into the reaction chamber. The apparatus is characterised in that it is designed as a continuous furnace and has at least one combustion chamber which is arranged within the furnace chamber or extends into the latter and which has an upstream mixing device, by means of which a fuel/air mixture can be fed to the combustion chamber. <IMAGE>
Patent DE-3232905-A1 (DE)
Title: Process and apparatus for the loading, comminution, transportation and metered unloading of agricultural bulk materials
Inventor: WEICHEL ERNST
IPC: A01D90/00
Filed: 1982-09-04
Abstract: A process for the loading, if appropriate with simultaneous comminution, as well as transportation and metered spreading or unloading, if appropriate with further secondary comminution, of agricultural bulk materials by means of a correspondingly equipped loading truck (1) ensures that the material extracted from the loading space (2) is comminuted, if appropriate even chopped or mashed, a further time by means of a corresponding accessory device (17) before its further transport. In particular, the material which has been subjected to further secondary comminution after leaving the metering device (14, 15) can be returned in a closed circuit into the loading space (2) at least a further time and run through the metering device (14, 15) and secondary comminution once again. <IMAGE>
Patent DE-3237293-A1 (DE)
Title: Process for the preparation of molybdenum oxide
Inventor: BAUER GUENTER DIPL ING
IPC: C22B34/34
Filed: 1982-10-08
Abstract: The starting point of the invention is a process for the preparation of molybdenum oxide by oxidation of a molybdenum sulphide concentrate contaminated with accompanying metals. In a suspension step, an aqueous suspension is prepared from the molybdenum sulphide concentrate, whose average particle size is in the range from 20  mu m to 90  mu m, preferably 70  mu m. This suspension is subjected in an autoclave at elevated temperature and elevated oxygen partial pressure to an oxidation treatment, during which it is reacted. The reacted suspension is removed. First, the molybdenum oxide is filtered off from the reacted suspension. The primary filtrate thus formed, which contains sulphuric acid, is neutralised with the formation of gypsum and again filtered in order to free it from the gypsum. The resulting secondary filtrate is recirculated into the suspension step. A suspension whose suspension density is maintained in the range from 100 to 150 grammes per litre is subjected to the oxidation treatment, and the temperature, and thus the pressure, in the autoclave are controlled by regulating the suspension density. When the temperature decreases, the suspension density increases. When the temperature increases, water is introduced into the suspension step. However, the temperature in the autoclave can also be additionally regulated for the purpose of decreasing the temperature for a short period by adjusting the oxygen partial pressure. The temperature in the autoclave is maintained in a range from 230 to 245 DEG C. ... Original abstract incomplete.
Patent DE-3242133-A1 (DE)
Title: Support method and hollow bodies to be filled with construction material
Inventor: KETTERER KLAUS DIPL ING
IPC: E21D11/15
Filed: 1982-11-13
Abstract: Roadways in underground mining and tunnelling are secured by an underpinning support system which is given the necessary frictional contact with the rock by hollow bodies arranged in between first of all being tautly inflated with compressed air and then by the compressed air being exchanged for a construction material. To this end, the hollow bodies have at least one non-return filling valve and a relief valve so that the compressed air can escape simultaneously and uniformly during the re-filling of the hollow bodies with the construction material. When the individual support arches are being erected, the hollow bodies are also placed in position in the folded state and are immediately filled with compressed air, while the construction material is placed at a suitable point and at a distance from the heading. An advantageous frictional contact of the support system with the rock is the result. <IMAGE>
Patent DE-3246771-A1 (DE)
Inventor: SCHOTTEN ALFONS
IPC: B01D25/26
Filed: 1982-12-17
Abstract: A plate filter comprises a plurality of shiftable filter plates and first and second deflecting rolls carried on opposite sides of each filter plate. The axes of consecutive first deflecting rolls lie alternatingly in a first plane and in a second plane spaced from one another. A filter cloth is guided in a zigzag course between consecutive filter plates by the first and second deflecting rolls. A first sprocket is affixed to each first deflecting roll and a second sprocket is mounted on each first deflecting roll for free idling rotation. First and second spaced, elongated, oppositely driven chains are respectively trained in a zigzag course in an alternating sequence about first and second sprockets of first deflecting rolls belonging to consecutive filter plates. The first and second chains are in meshing relationship with the first and second sprockets about which the chains are consecutively trained. The diameter of the first and second sprockets and the distance between the first and second planes are dimensioned for varying the magnitude of a loop angle represented by an arc along which the first and second chains are in engagement with respective first and second sprockets to compensate for length variations of the first and second chains upon shifting motion of the filter plates relative to one another.
Patent DE-3247715-A1 (DE)
Title: Process for the preparation of hydrocarbons, and plant for carrying out a process of this type
Inventor: HACKLER ERICH
IPC: C07C1/04
Filed: 1982-12-23
Abstract: The invention relates to a process for the preparation of hydrocarbons from H2- and C-containing starting gases at elevated pressure and elevated temperature using a fluidised-bed catalyst having at least one cooled gas-phase catalyst fluidised bed, and to a plant for carrying out a process of this type. The invention is intended to achieve simple filtering-off of the fine catalyst particles entrained from the first gas-phase catalyst fluidised bed without impairing the performance of the process. This problem is essentially solved by feeding the gaseous hydrocarbons with the residual starting gases from a first gas-phase catalyst fluidised bed through a second separate purification catalyst fluidised bed. A plant intended for carrying out this process is distinguished, for example, by the gas-phase catalyst fluidised bed and the purification catalyst fluidised bed being accommodated in separate pressure reactor tanks.
Patent DE-3248286-A1 (DE)
Title: Composite profile for windows and/or doors
Inventor: ZANKER HELMUT DR
IPC: E06B3/263
Filed: 1982-12-28
Abstract: A composite profile for windows and/or doors which comprises two thermally separated metal profiles, preferably consisting of aluminium, the aluminium profiles being held at a distance from one another by at least one plastic connecting profile which is connected to the aluminium profiles, and the plastic profile being designed as a hollow-chamber profile and having at least one web which is arranged on one side and projects into the clearance between the two aluminium profiles. Said composite profile is to be designed such that additional parts belonging to the composite profile can be secured in a simple manner. For this purpose, the invention provides that the web of the plastic profile is provided with at least one transverse web, extending transversely to the longitudinal extent thereof, a lug, an undercut or the like, and that the web is arranged in the region of an outer third of the longitudinal extent of the cross-section of the plastic profile.
Patent DE-3300071-A1 (DE)
Title: Light signal for toy railways
Inventor: HERZER KUNO
IPC: A63H19/34
Filed: 1983-01-04
Abstract: In the subject matter of the invention, the central wall (possibly even the entire upper end of the pole) of the pole is an intermediate plate between the signal concept carrier and the light source carrying plate. In this way, it is ensured that the signalling head has a narrow appearance and additionally is constructed so as to be fracture-proof and vibration-proof. All of these three main components are plugged one into the other and thus can be easily assembled. <IMAGE>
Patent DE-3300941-A1 (DE)
Title: Gritting system for motor vehicles
Inventor: FERTL KLAUS
IPC: B60B39/08
Filed: 1983-01-13
Abstract: The invention relates to a gritting system for motor vehicles, in which the respective gritting agent, for example sand, is placed in front of the driven wheels with the aid of compressed air. In such a system, simple operation and a high degree of operativeness under all weather conditions is aimed for. This is achieved if the system is characterised by a compressed air storage space (19), upstream of which an overflow valve (20) is connected and downstream of which an on/off valve (16), preferably a solenoid valve, which can be operated from the driver's cab (17) is connected, and said valve (16) is preferably followed by a compressed air control valve (14) with manometer (15) from which at least partially flexible lines (11, 12) lead to the storage containers (7, 8) which are located in the region of the wheels (5, 6) and bear the gritting nozzles (5, 6) which are directed obliquely downwards and rearwards and have funnel-like ends.   <IMAGE>
Patent DE-3301989-A1 (DE)
Title: Device for spreading and guiding a continuous web of material
Inventor: ELLNER FRANK
IPC: B65H23/025
Filed: 1983-01-21
Abstract: In a device for spreading and guiding a continuous web of material, especially a web of textile material, with a stationarily arranged guide body which extends at right angles to the direction of feed of the web of material and which at least in its central section has guide elements which are located next to one another, engage with the underside of the web of material and respectively point diagonally outwards in the direction opposite the direction of feed in two adjacent areas at right angles to the direction of feed, in such a way that the directions of the guide elements in the two adjacent areas diverge in the direction of feed, in order to achieve a simplified design in which the webs of material being guided are subjected to as little strain as possible, it is proposed to make the position of the interface between the adjacent areas displaceable at right angles to the direction of feed.
Patent DE-3306815-A1 (DE)
Title: Device for transporting flat products occurring in an imbricated formation, in particular printed products
Inventor: MEIER JACQUES
IPC: B65H29/66
Filed: 1983-02-26
Abstract: The printed products (12) arriving in imbricated formation (S) are fed to a transporter (1) by means of a belt conveyor (14). The conveying direction (C) of the belt conveyor (14) forms an acute angle with the conveying direction (A) of the transporter (1). The conveying speed (v3) of the belt conveyor (14) is greater than the conveying speed (v1) of the transporter (1). Seen in its conveying direction (A), the transporter (1) has grippers (2) which are arranged successively at intervals and are attached to a chain (3). Each gripper (2) has a fixed clamping jaw (5) and a swivellable clamping jaw (6). The gripper mouth which is open towards the rear seen in the conveying direction (A) is bounded at the front by a plate-type stop (7). The latter runs perpendicular to the conveying direction (A) of the transporter (1). To open the grippers (2), the swivellable clamping jaw (6) is swivelled by a connecting link (10) counter to the effect of a closing spring. The printed products (12) which are fed by the belt conveyor (14) at a higher speed catch up with the grippers (2) and are inserted into the open gripper mouth until they strike against the stop (7). This striking causes the printed products (12) to be aligned in the region of their leading edge (12a). In the region of their trailing edge (12b), the printed products (12) remain under the conveying effect of the belt conveyor (14), at least until the grippers (2) close, but preferably even longer. When release of the printed products (12) by the belt conveyor (14) has been completed, the trailing part of the printed product (12) can also pass into the aligned position. <IMAGE>
Patent DE-3310590-A1 (DE)
Title: Circuit arrangement for a small dial-up PBX system
Inventor: FAHRENSCHON FRANZ DIPL ING
IPC: H04Q3/62
Filed: 1983-03-23
Abstract: Published without abstract.
Patent DE-3315574-A1 (DE)
Title: Device serving to increase the utility value of containers containing spreadable foodstuffs
Inventor: VOELK POLYKARP
IPC: B65D25/02
Filed: 1983-04-29
Abstract: In order to avoid smearing in the region of the opening and the lid of a container (14) which is filled with a foodstuff or luxury article and can be closed by a lid (17), a strut (11) is provided which traverses the opening of the container and on which the excess contents removed from the container can be scraped off, in which case the container itself, an upper part or a so-called outer pot can serve as support for said strut; cf. Figure 4. <IMAGE>
Patent DE-3316895-A1 (DE)
Inventor: SCHABERT HANS-PETER DIPL ING
IPC: F16K1/34
Filed: 1983-05-09
Abstract: A shutoff valve, includes a conical valve seat, and a valve disc movable toward the valve seat in a given direction, the valve disc including a base body covering the valve seat, an annular projection projecting from the base body in the given direction, and a rim formed on the outside of the projection resting against the valve seat in a closed position of the valve, the projection having a region with a given wall thickness in vicinity of the base body and the projection having a free end reinforced to at least 1.5 times the given thickness in the radial direction.
Patent DE-3317780-A1 (DE)
Title: Arrangement for masking errors in a video signal
Inventor: REITMEIER GLENN ARTHUR
IPC: G11B20/18
Filed: 1983-05-16
Abstract: The subject matter of the invention is an arrangement for masking errors in a digital video signal which, depending on the gravity of the error, selects one of different error masking methods. In detail, an adaptive estimation (horizontal or vertical averaging) of faulty pixels is selected when all pixels needed for such an estimation are free of faults. If this is not the case, a four-point averaging is used. If this is not possible, either, a vertical averaging and, finally, a horizontal averaging, is used. If the fault is very severe, a line buffer (64) supplies the last previous valid line. <IMAGE>
Patent DE-3318095-A1 (DE)
Title: Electrical levelling device
Inventor: GOTTWALD WALDEMAR
IPC: G01C9/10
Filed: 1983-05-18
Abstract: The invention relates to a levelling device for determining the correct operating position of manually operated machines, particularly tradesmens' machines, which consists of an electrical contact device with connected display device. The contacting device is arranged in a spherical cage connected to the machine and preferably consists of a sphere which closes contacts arranged in the cage and produces a display when the machine is in a suitable position.
Patent DE-3319286-A1 (DE)
Title: Roller-shutter box with incoming-air and outgoing-air preparation
Inventor: SCHATTA MARTIN
IPC: F24F8/50
Filed: 1983-05-27
Abstract: In this roller-shutter box, there is on the one hand installed in a sound-insulated incoming-air duct an electric motor with a tractor airscrew and/or a pusher airscrew which allows the outside air to flow through the air filter via the heating resistor, which is made up of a guide plate, the heating grating and the guide tongue, with injector effect, to the sound lock. In the further course of flow, the outgoing air, drawn by injector effect out of the outgoing-air duct via the connecting duct, strikes the heating resistor, which is designed as injector part, or primarily the heatable guide plate, in order subsequently to be mixed in the sound lock with the incoming air flowing out of the heating grating, it being possible constantly to use the filtered and thus sterilised outgoing air for adjustable heat recovery by means of the valve flap. If the roller-shutter roller has a lifting motor, the absence of the belt pulley in association with the lower round design produces the free space for the installation of corresponding ventilation ducts.
Patent DE-3319439-A1 (DE)
Title: Video crossbar distributor
Inventor: FRANK DIETER
IPC: H04N5/268
Filed: 1983-05-28
Abstract: A video crossbar distributor is proposed which has an automatic frequency response correction for the video signals to be distributed. For this purpose, the direct current flowing through the conducting switching point is measured, from this a control signal is derived and this is used to control a frequency response correction circuit (22), which is arranged in the input amplifier (10), in the sense of reducing the change in frequency response of the video signal to be transmitted. <IMAGE>
Patent DE-3320193-A1 (DE)
Title: Door fitting or the like
IPC: E05B3/06
Filed: 1983-06-03
Abstract: A door fitting or the like consists of a plate (1) with a plate recess (4) and of an actuating shaft (2) mounted therein rotatably, but axially non-displaceably, and having a handle (3) connected to its free end. The actuating shaft (2) is surrounded by a flanged sleeve (10) which projects partially into the plate recess (4) and of which the flange (11) perpendicular to the axis of the actuating shaft (2) is arranged between the plate (1) and the handle (3). In such a door fitting, it is no longer necessary to replace the associated lock in the event of a weakening of the effect of its spring, if the flanged sleeve (10) is fixed non-rotatably to the plate (1) and has, on its side facing the handle (3), a guide collar (13) extending in the circumferential direction and projecting into a handle recess (14), with a wedge portion (15) which rises axially in the actuating direction of the handle (3) and against the end face of which bears the end face of a complementary wedge portion (16) of a counter-sleeve (17) which is mounted in the handle recess (14) fixedly in terms of rotation, but axially displaceably, and which is loaded in the direction of the plate (1) by a helical spring (19) supported on the bottom (20) of the said handle recess (14). <IMAGE>
Patent DE-3321862-A1 (DE)
Inventor: SCHOEN MANFRED DIPL ING
IPC: G01K1/02
Filed: 1983-06-16
Abstract: 1. A measuring device for detecting a temperature difference, comprising two temperature-measuring resistors (1, 2) which are each respectively connected via a first or second switch (4, 5) as the case may be, to a constant current source (14) and are connected via a common reference resistor (3) to a reference potential, where the connection point of each temperature-measuring resistor (1, 2) to the first or second switch (4, 5), as the case may be, is connected via a respective third and fourth switch (6, 7) and via a resistor (10) to a first input of an operational amplifier (11a), connected to an integration capacitor (11b) as integrator, and with a second input connected to the reference resistor (3), where a fifth switch (8) connects the first input of the operational amplifier (11a) via the resistor (10) to the reference potential, where the operational amplifier (11a) is connected at its output to an analysis circuit (17), and where the switches (4 to 8) are driven in such manner that the voltage which occur across the temperature-measuring resistors (1, 2) are converted in accordance with the dual-slope process into digital values, characterised in that the first input of the operational amplifier (11a) is connected to the reference potential via a compensation resistor (12), where the compensation resistor (12) is dimensioned such that where the measuring temperature of the connected temperature-measuring resistor (1 or 2) is below a desired temperature measurement range, the integration current (JJ ) through the integration capacitor (11b) is zero.
Patent DE-3322569-A1 (DE)
Title: Process and device for increasing the operating life of a suspended solids filter or other depth filter
Inventor: RUEDINGER VOLKER DR
IPC: B01D46/44
Filed: 1983-06-23
Abstract: The invention relates to a process for increasing the operating life of a suspended solids filter or other depth filter which is impinged by an air stream in which particulate substances are contained, and a device for carrying out the process. The object of the invention is to find a process and a device of the type mentioned in the introduction as a result of which an increase can be achieved in the amount of the very fine dust which can be retained by the filter until the pressure drop is reached which requires a filter change. The solution is characterised in that the relative humidity of the airstream remains set to a value below 100% with increasing differential pressure at the filter, which is due to the loading, or at the latest when a maximum differential pressure is attained, until a stable differential pressure is established approximately equal to that for the unladen filter.
Patent DE-3326004-A1 (DE)
Inventor: NIEDERMEIER GEORG
IPC: F28D21/00
Filed: 1983-07-19
Abstract: 1. Heat exchanger having several concentrically spaced ring chambers (1) for the passage of a first heat exchange medium and annular or tubular passages (2) respectively defined by the ring chambers for a second heat exchange medium, characterized in that the ring chambers (1) being connected with each other have a distributing pipe (4) for the entry of the first heat exchange medium and a collecting pipe (5) for the exit of the first heat exchange medium and being divided by a common dividing wall (7) between distributing pipe (4) and collecting pipe (5) so that the first heat exchange medium entering through the distributing pipe (4) passes completely through the ring chambers and only than being discharged through the collecting pipe (5).
Patent DE-3330487-A1 (DE)
Inventor: KOERFGEN HARALD
IPC: A46B7/04
Filed: 1983-08-24
Abstract: A brush for cleaning articles like bottles includes a hollow handle and a brush body connected to the latter and having a plurality of bristles. The brush body accommodates a passage through which the fluid flows and is provided with a plurality of slots radially extending from the passage in one plane. Cooperating with the slots is a deflector which has a rim portion extending beyond the plane of the slots so that the fluid after flowing through the handle and the passage is discharged through the slots and deflected onto the bristles at an acute angle with respect to the center axis of the brush.