baber/WOPTO huggingface dataset:
Patent DE-3315453-A1 (DE)
Title: Diecasting process for the production of high-strength diecastings, which can be tempered, by smooth guiding of the plunger, and apparatus for performing it
Inventor: WURM ROBERT
IPC: B22D17/20
Filed: 1983-04-28
Abstract: Process and apparatus for the smooth guiding of the plunger (11) of a diecasting machine. The plunger (11) is guided, so as to be capable of rotating to and fro, in a press cylinder (12) and is acted on both sides by a hydraulic medium (16). When the piston rod (13) travels into the press chamber (not shown), the hydraulic medium (16) flowing out through the drain pipe (17) opposes a counterpressure by means of a drain throttle (24) arranged in the drain pipe (17). The drain throttle (24) is provided with a throttle gap (26) which can be varied by means of an adjustable opening path (25) of the drain throttle (24) which is guided in a throttle guide (29). 
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Patent DE-3318900-A1 (DE)
Title: Proximity switch with minimum current consumption
Inventor: TIGGES BURKHARD DIPL ING
IPC: H03K17/95
Filed: 1983-05-25
Abstract: To achieve a proximity switch with minimum current consumption and at the same time little circuit and component expenditure, it is provided in accordance with the invention that an electrical resonant circuit (3, 4), the coil (3) of which can be influenced by the proximity, is excited into oscillation by a direct-current pulse, that the degree of proximity is inferred from the decaying process of the damped oscillation thus generated and that the excitation of the resonant circuit is effected periodically by a pulse sequence. <IMAGE>
Patent DE-3321188-A1 (DE)
Title: Hydraulic turbo engine of radial type
Inventor: CHRIST ALFRED DR
IPC: F03B11/06
Filed: 1983-06-11
Abstract: In the case of a hydraulic turbo engine, for example a Francis turbine, storage pump or pump-turbine, the hub disc (101) and the cover disc (102) of the impeller are sealed off from the housing (104) on their outer and/or inner rim by means of radially acting, hydrostatic seals (1, 2, 3). The seal water escaping from the seals (1, 2, 3) is led off outside by bores (201, 202, 203) and kept away from the outer surfaces of the hub disc (101) and the cover disc (102). <IMAGE>
Patent DE-3321402-A1 (DE)
Title: Apparatus and process for the evaporation of refrigerants
IPC: F25B1/00
Filed: 1983-06-14
Abstract: Published without abstract.
Patent DE-3321814-A1 (DE)
Title: Battery indicator
Inventor: BURGHOFF HEINZ-GEORG DIPL PHYS
IPC: G01R31/36
Filed: 1983-06-16
Abstract: This batter indicator detects the respective operating condition of the battery, enables the starting capability of the battery to be quantitatively assessed and indicates this as a starting limit temperature.
Patent DE-3322543-A1 (DE)
Title: Outlet valve on fire extinguishers
IPC: F16K17/14
Filed: 1983-06-23
Abstract: The outlet valve of a container which is under pressure and stores fire extinguishing agent essentially comprises the housing 52, the inner space of which is closed off from that of the container by the diaphragm 49. The latter is supported on the housing side on the plate 53, which at one end is mounted on a shaft and at the other end rests on the roller 54. The latter engages with its two ends in cages 56 which are fastened on an operating shaft 57 which is arranged parallel to the roller 54, controls the latter and, if need be, releases the supporting plate. Upon release of the supporting plate 53, it swivels about its bearing shaft and withdraws its support from the diaphragm, so that the latter ruptures under the pressure acting on it. What is essential here is that great forces which act from the fire extinguisher container on the supporting plate can be initiated by means of comparatively small operating forces by virtue of the rolling friction occurring at 54 (Fig. 4). <IMAGE>
Patent DE-3323515-A1 (DE)
Title: Energy-saving burner
Inventor: NUSSER ALBAN
IPC: F23C3/00
Filed: 1983-06-30
Abstract: The invention relates to an energy-saving burner for obtaining a complete combustion of the fuel with a large range of variation of the heating power in relation to the surroundings, especially as a gas, evaporation, and atomising burner, e.g. in cooking appliances, heaters and heating boilers, in which the conventional mixing apparatus for fuel and combustion air is supplemented by a combustion chamber in which the fuel is burnt. The combustion zone is sufficiently enclosed by the combustion chamber, which reflects the heat back to increase the flame temperature. The dimensions of the combustion air supply are such that not much more combustion air reaches the flame than is required for a complete combustion. Especially with atomising burners, the combustion zone is directly surrounded, within the combustion chamber and at a small concentric distance from its wall, by a heat exchanger tube, of heat-resistant material, heated to a very high temperature by the flame, a portion of the combustion gases which are heated to a high temperature level for evaporation of the fuel mist by the hot heat exchange tube being returned to the flame root.
Patent DE-3325363-A1 (DE)
Title: Device for reworking glass abrasion on returnable bottles
Inventor: KIEFER ERNST DIPL ING
IPC: B05C1/02
Filed: 1983-07-14
Abstract: In a known device for reworking glass abrasion on returnable bottles 16, in which the returnable bottles are conveyed along a roller rail 4 for application of a glaze, the conveying movement is imparted to the returnable bottles 16 by special transport belts. However, these transport belts are prone to wear and they do not guarantee the condition of the returnable bottles 16, or their even spacing, for example for transfer to a subsequent processing unit which requires even spacing. To overcome these disadvantages, the roller rail 4 is now curved and situated opposite the reception cells 23 of a transport star 14; at least two rollers are to be arranged in this case on a reception cell 23 for the rolling support of a returnable bottle 16 in the reception cell 23 against the roller rail 4. <IMAGE>
Patent DE-3326020-A1 (DE)
Title: Plasma process for chemically treating objects and substances
Inventor: BEERWALD HANS DR RER NAT
IPC: C23C14/34
Filed: 1983-07-20
Abstract: In a plasma process for chemically treating objects in a gas discharge chamber, for example to coat substrate plates, in which the gas containing the substances needed for the chemical reaction is passed over said objects, pulsed discharges are used in which the pulse spacing is matched to the time required by the gas to flow through the reaction chamber in such a way that the time interval between two successive pulses is equal to the time needed to fill the gas discharge space above the objects to be treated with unused gas.
Patent DE-3326694-A1 (DE)
Inventor: DOERGES EUGEN DIPL ING
IPC: F23H7/08
Filed: 1983-07-23
Abstract: An inclined furnace grate for an industrial furnace or incinerator with transverse grate beams supporting a downwardly stepped succession of banks of stationary and reciprocating grate bars, the grate beams having arranged in their supporting surfaces removable bearing pads of abrasion-resistant, alloyed cast iron for the sliding support and lateral positioning of the reciprocating grate bars, thereby protecting the softer cast iron grate beams against sliding wear and abrasion. The removable bearing pads are received inside shallow recessed seats and retained in place by the adjacent stationary grate bars.
Patent DE-3331676-A1 (DE)
Inventor: SPAETH WOLFGANG
IPC: B29C45/03
Filed: 1983-09-02
Abstract: 1. Die-clamping device, in which, by means of a tensioning element fastened to the tool, the tool can be held tight against the die platen by a clamping member that comprises a clamping wedge arranged at the free end of a clamping piston and a complementary wedge which cooperates with the clamping wedge, the inclined wedge faces thereof being arranged so that they are displaceable relative to one another, characterised in that the clamping wedge (5) is connected via a resilient member (7) to the complementary wedge (6) and the complementary wedge (6) is so movable against a rigid stop that a relative movement between the two wedges (5, 6) occurs as a result of further displacement of the clamping wedge (5).
Patent DE-3339348-A1 (DE)
Title: Neodymium-YAG laser with passive mode locking
Inventor: SCHROEDER ECKHARD DIPL PHYS
IPC: H01S3/098
Filed: 1983-10-29
Abstract: A description is given of a neodymium-YAG laser with passive mode locking, in which a control device automatically refills the dye. Refilling is always undertaken when the stationary transmission of the dye and/or the laser energy have fallen below specific critical values. In a preferred exemplary embodiment, an infrared diode is used to measure the stationary transmission of the dye.
Patent DE-3402156-A1 (DE)
Title: Subscriber set with push-button dialling
Inventor: KRAFT OTHMAR ING
IPC: H04M1/31
Filed: 1984-01-23
Abstract: In a subscriber set for push-button dialling in which a first electronic switch (15) is connected upstream of the speech circuit (3) and a second electronic switch (16) is connected upstream of the dialling circuit (4) and in which, by means of a bridge rectifier (2), a switchover from dialling mode to speech mode which is independent of the respective polarity of the subscriber line (1) is enabled by a dialling circuit (4), the speech circuit is disposed upstream of the bridge rectifier rather than downstream as it had been previously to prevent a reduction in the power available for the speech mode and an inverting switching stage (7) is inserted between the dialling circuit (4) and the first electronic switch (15) which supplies the first electronic switch with each control voltage with both polarities. <IMAGE>
Patent DE-3403021-A1 (DE)
Inventor: RUPILIUS WOLFGANG DR
IPC: C07C69/30
Filed: 1984-01-28
Abstract: A process for the production of fatty acid mixtures containing a high proportion of C6-C10-fatty acids consisting essentially of (1) transesterifying mixtures consisting essentially of C6-C10-fatty acid alkyl esters with from 1 to 4 carbon atoms in the alkyl with glycerine at 160 DEG  to 250 DEG  C. in the presence of transesterification catalysts with removal of the C1-C4-alkanol formed, (2) adding the C6-C10-fatty acid glycerides to a C6-C18-fatty acid glyceride selected from the group consisting of coconut oil, palm kernel oil and mixtures thereof, (3) subjecting the mixture of glycerides to lipolysis in the presence of an excess of water at 200 DEG  C. to 250 DEG  C. at the autogenous pressure in the absence of a catalyst until until the required degree of splitting is achieved and (4) recovering a fatty acid mixture containing a high proportion of C6-C10-fatty acids.
Patent DE-3406972-A1 (DE)
Title: Hearing aid to be worn in the auditory tract
Inventor: HUEBER KLAUS
IPC: H04R25/02
Filed: 1984-02-25
Abstract: The invention relates to a hearing aid to be worn in the auditory tract for persons with impaired or severely impaired hearing, with a microphone (5), amplifier part (7), telephone (10), battery compartment (8), on/off switch, volume control and connection to an ear adapter piece in which at least the entire upper cover (1) of the hearing aid is rotatably disposed for actuation of the latter, a part (2) of the upper covering being removable or pivotable to provide access to the battery compartment. <IMAGE>
Patent DE-3409453-A1 (DE)
Title: Process for the non-destructive determination of the moisture content of bodies made of solid, porous materials
IPC: G01N25/56
Filed: 1984-03-15
Abstract: For the non-destructive determination of the moisture content of structural bodies made of solid, porous materials, in particular concrete, a closed air-filled space is formed including at least a part of the surface of the body to be tested, in which space the relative humidity and temperature of the enclosed air are measured. Because of the physical correlations between the diameter of a water-filled capillary and the vapour pressure prevailing over it, the diameter of those pores which are still filled with water or aqueous solution can be determined from the vapour pressure and the temperature and the moisture content of the material can be inferred therefrom. <IMAGE>
Patent DE-3409631-A1 (DE)
Title: Circuit arrangement for a power converter drive of a vehicle with DC voltage supply
Inventor: STILL LUDWIG DIPL ING
IPC: B60L7/14
Filed: 1984-03-16
Abstract: In this circuit arrangement, an asynchronous machine (ASM) which serves as a drive machine of an electrical power unit is fed via a DC chopper converter (TH, LK, CK, TL, LU, TU, DF, DB), an intermediate-circuit restrictor (Ld) and an inverted rectifier (WR). The braking moment which occurs during braking operation can be larger in size due to the omission of the field attenuation mode, than the moment occurring during travelling mode. In order to limit the increased intermediate-circuit voltage (Ud) occurring as a result during braking operation, a drop resistor (RV1) with parallel bypassing thyristor (TV1) is provided between the inverted rectifier (WR) and the brake diode (DB2) which serves for feedback. Since the drop resistor (RV1) is directly assigned to the DC chopper converter, the bypassing thyristor (TV1) can be turned off by the turning-off device which is present in any case for the main thyristor (TH) of the converter. <IMAGE>
Patent DE-3414490-A1 (DE)
Title: Multi-stage automatic transmission with a lock-up clutch and a F omega ttinger torque converter with an injector
Inventor: INGELHEIM PETER GRAF VON
IPC: F16D33/02
Filed: 1984-04-17
Abstract: The invention relates to a multi-stage automatic transmission with a lock-up clutch and a F omega ttinger torque converter with an injector. In this transmission, the injector can be controlled in such a way that, at a given pump rotational speed and a specified speed ratio, any turbine torque between a maximum and zero can be achieved. With the injector closed, the converter can be used as a hydrodynamic brake.
Patent DE-3421093-A1 (DE)
Title: Contact elements for board edge connectors
Inventor: COBAUGH ROBERT FRANKLIN
IPC: H01R12/89
Filed: 1984-06-06
Abstract: The present invention discloses a contact element (14) for use in board edge connectors (10), the contact surface (34) of the contact element (14) being located on the free end of the self-supporting arm (32) and having a sharp spherical radius. <IMAGE>
Patent DE-3421878-A1 (DE)
Title: Process and plant for the continuous production of pig iron
Inventor: HENRICH GUENTER DR
IPC: C21B13/14
Filed: 1984-06-13
Abstract: The production of pig iron from mouldings which consist of lump ore or of fine ores containing iron and optional additives, even today requires the expenditure of very large amounts of energy, particularly if the mouldings have to be fired in order to have sufficient mechanical strength during the reduction process, for example in a reduction blast-furnace. In smelting processes with simultaneous production of a reduction gas in the smelting gasifier, cooling of the reduction gas generated to a temperature below the sticking temperature of the pellets can only be achieved by complex and expensive equipment and procedures. According to the invention, said drawbacks are overcome by the green mouldings (7) being preheated, dried and reduced to sponge iron on a travelling grid (8), using a process gas from a coal gasification reactor (17), making full use of the thermal energy contained in the process gas generated, and being then continuously fed, via a feed shaft (15) which can be sealed in a gas-tight manner, into a coal gasification reactor (17) and being smelted. <IMAGE>
Patent DE-3422606-A1 (DE)
Title: Hydraulic bypass valve with optical indicator
Inventor: SCHULTE HEINZ
IPC: F16K37/00
Filed: 1984-06-18
Abstract: A bypass valve with an electro-optical indicator is disclosed which has a piston which is inserted in a sliding manner in a through-bore of a housing and via the end faces of which a certain pressure drop from a hydraulic system is applied and which, at a corresponding value determined by a spring, is displaced by this pressure difference in such a way that it opens a connection between an inlet connection and an outlet connection of the bypass valve. Inserted in a sliding manner in the piston is a plunger, via the ends of which the said pressure drop is likewise applied and which is displaced by this pressure drop in such a way that, upon reaching a certain pressure drop as a function of the dimensioning of a spring, it touches an electrical contact and thereby earths the latter.
Patent DE-3430154-A1 (DE)
Title: Refrigerator or the like
Inventor: BONINSEGNI AURELIO
IPC: F25D17/04
Filed: 1984-08-16
Abstract: This invention relates to a refrigerating device or the like, consisting of a refrigerating compartment and a freezing compartment arranged independently thereof, which are separated from one another by an insulated wall, two different refrigerating systems being used in the device, specifically one which is static and one which operates by means of a blower flow. In this case, the device also has a single refrigerant circulation, through a compressor and downstream devices, as well as through a condenser, a compartmentalised or simple flow device, a static evaporator and through an evaporator operated in association with a fan, which devices can also be arranged in reversed order.
Patent DE-3430961-A1 (DE)
Title: Semiconductor switch
Inventor: PEPPEL MICHAEL DR ING
IPC: H03K17/00
Filed: 1984-08-20
Abstract: The invention relates to a semiconductor switch which has an actuating input (20), with at least one switching transistor (21) and with a monitoring device (27) assigned to the latter, which device includes a voltage-assessing device (27), arranged on the input side in a parallel branch to the switching transistor (21), and has a controllable semiconductor switching element (35), which is in connection with the actuating input (20) of the semiconductor switch and the control terminal of which is connected to the output (34) of the voltage-assessing device (28). In order to achieve a particularly simple and functionally reliable construction of the semiconductor switch, as a result of dispensing with its own power supply device, and in order to ensure a particularly low own power consumption, the voltage-assessing device (28) has a voltage divider (29, 30) which lies parallel to the switching transistor (21) and the pick-up of which forms the output (34) of the voltage-assessing device (28); the controllable semiconductor switching element (35) lies in a bridging branch at the control input (26) of the switching transistor (21), and a current-limiting device (39) is arranged in a transverse branch between the actuating input (20) of the semiconductor switch and the control input (26) of the switching transistor (21). <IMAGE>
Patent DE-3431331-A1 (DE)
Title: Container
Inventor: NEUGEBAUER PETER ING GRAD
IPC: B65D88/74
Filed: 1984-08-25
Abstract: The container consists in each case of a base panel, which surrounds a container interior and is supported on bottom supports, a top panel, a right and left side wall and a front and rear end wall. In order to provide the container with a ventilation system which, on the one hand, provides the ventilation performance also required in the case of highly sensitive products and, on the other hand, does not impede the loading of the container, at least one bottom support is constructed as a ventilation duct. Said bottom support has at least one ventilation aperture. The ventilation aperture is made in a wall of the bottom support facing the container interior. The bottom support can have at least one access which is made in a wall of the bottom support facing away from the container interior. An air inlet space constructed as a ventilation distribution space can be connected upstream of the bottom support in the flow direction. The air inlet space can have at least one ventilator.
Patent DE-3432945-A1 (DE)
Title: Apparatus for the transport in steps of materials in tape or strip form
IPC: B65H20/04
Filed: 1984-09-07
Abstract: The movement of a carriage 19 which reciprocates in the direction of the double-headed arrow 18 is transmitted via a toothed rod 15 with inclined toothing, a gear wheel 12 with inclined toothing, and a slip coupling 13 to a drive shaft 7 for a transport roller 3, so that a material in strip form can be transported in steps. The toothed rod 15 is on the one hand mounted on guide pins 16 and 17, which are connected to the carriage 19, so as to reciprocate laterally in the direction of the double-headed arrow 21 and on the other hand is guided in the longitudinal direction of the double-headed arrow 18 via guide spigots 25 and 26, which slide in longitudinal grooves 29 and 30 in pivotably mounted guide rods 27 and 28, the said longitudinal movement being combined with the lateral reciprocating movement in dependence on the angular position  beta of the guide rods 27 and 28. A lateral movement of the toothed rod 15 causes, owing to its inclined toothing, a slight rotary movement of the drive shaft 7 in addition to the rotary movement resulting from the longitudinal movement corresponding to the drive by the carriage 19. <IMAGE>
Patent DE-3435356-A1 (DE)
Title: Internal combustion engine
Inventor: NORDSTROEM RABBE DR MED
IPC: F02B71/00
Filed: 1984-09-26
Abstract: The internal combustion engine comprises at least one set of three coaxially arranged cylinder chambers (3, 5, 7), sealed off from one another, and three pistons (9, 11, 13), connected to one another by a common piston rod (15), each of which is sealed off and displaceable in one of the cylinder chambers (3, 5, 7). The middle piston (11) divides the middle cylinder chamber (5) into two combustion spaces (17, 19). The two outer pistons (9, 13) define two precompression spaces (25, 27) in the outer cylinder chambers (3, 7). The maximum volume of the precompression spaces (25, 27) is greater than the maximum volume of the combustion spaces (17, 19). Between the precompression spaces (25, 27) and the adjacent combustion spaces (17, 19), rotary slide valve arrangements (29, 31) are provided, which control the inlet ports (33, 35) of the precompression spaces (25, 27) and/or the transfer ports (37, 39) and/or exhaust valves of the combustion spaces (17, 19). The precompression spaces (25, 27) may have a dead space (79, 81) and can be controlled so that the fuel/air mixture is first compressed in the precompression spaces (25, 27) and then expanded before it is fed into the combustion space. In this way the mixing of the mixture is improved. The internal combustion engine can in this case be designed as a two-stroke or four-stroke engine. The transfer ports can also be designed so that they ... Original abstract incomplete. <IMAGE>
Patent DE-3436511-A1 (DE)
Title: Electrical machine, especially as a drive for a circulation pump
Inventor: AHNER PETER DIPL ING
IPC: H02K1/16
Filed: 1984-10-05
Abstract: An electrical machine is proposed, especially as a drive for a circulation pump, which has a rotor (1) which is in the form of a spherical section and is surrounded by a corresponding spherical recess in a stator (2) having a constant air gap. The stator (2) is formed from an annular stator yoke (11) and teeth (10) (which are in each case pressed from soft-magnetic composite material) and from a stator winding (15) which is inserted into open slots. The cup (4) which rests on the stator teeth (10) and separates the internal space (5) on the rotor side from the internal space (6) on the stator side is at the same time the slot closure towards the rotor (1). Such stators make it possible to construct magnetic circuits having complicated shapes using simple means, save space and save on stator iron, and simplify the insertion of the winding with a good slot filling factor. <IMAGE>