baber/WOPTO huggingface dataset:
Patent DE-3110534-A1 (DE)
Inventor: SCHERER MANFRED
IPC: B22C9/08
Filed: 1981-03-18
Abstract: 1. Feeder for castings (1), in particular of cast-iron with a body (3) of an exothermic heating material comprising a cylindrical cavity (5), which material keeps the substance located in the feeder molten until the completion of the shrinkage of the casting material through the region of the casting to be fed, in which case the feeder volume corresponds to the quantity of the shrinkage volume plus the maximum safety amount of 30% of the shrinkage volume, characterised in that the cylindrical cavity (5) is open towards the outside on its upper side and that located in this cavity (5) is a float (9) adapted to its cross section and able to move with respect to the body (3) of exothermic heating material, which float likewise consists of an exothermic heating material.
Patent DE-3110736-A1 (DE)
Title: Sacrificial anode with a consumption indication and immersion sleeve for a temperature sensor
Inventor: HOESSLE WERNER
IPC: F24H9/20
Filed: 1981-03-16
Abstract: Sacrificial anode according to patent application P3,035,450.8 is substantially improved by the invention in such a way that its indicator current is always available without a battery being required. This is accomplished by means of a housing which is connected to the anode screw-fitting and within which an accumulator is located whose electrodes can be activated by water; the terminals of these electrodes are connected to an indicator element, water entering the accumulator via one or more orifices in the bottom of the housing which also contains a vent valve. Within the scope of the invention, it is also possible to provide at least one completely maintenance-free voltage source by means of a housing which is connected to the anode screw-fitting and within which a mains-connected transformer is located whose secondary side, into which an indicator element is connected, is closed when water enters. In this case, the current consumption is negligibly small because only the no-load current of the transformer, open on the secondary side, flows. <IMAGE>
Patent DE-3117904-A1 (DE)
Title: Briquetting machine
Inventor: OHTAWA KIMIAKI
IPC: B30B15/00
Filed: 1981-05-06
Abstract: In the case of the briquetting machine according to the invention for pressing a bulk material, two briquetting rollers (2) are arranged downstream of two shearing rollers (3) which are provided on their outer surfaces with circumferentially and/or longitudinally extending cutting blades, are arranged at a predetermined distance from one another parallel to the briquetting rollers (2) and can be made to rotate in opposite directions to one another synchronously with the briquetting rollers (2), it being possible to cut a line of briquette material emerging from the briquetting rollers (2) into individual briquettes by means of the shearing rollers (3). In a modified embodiment, the distance between the shearing rollers (3) is selected in such a way that the line of briquette material is not severed and/or cut into individual briquettes as it passes between them but is merely notched by the shearing rollers (3). Furthermore, a briquette guide (4) is arranged downstream of the shearing rollers (3) and has in its turn arranged downstream of it a severing device (5) which is composed of a roller (5a) with radial beater arms (5b), which roller (5a) rotates in synchronism with the briquetting and shearing rollers (2 and 3 respectively), it being possible to cut off, at the notched points, individual briquettes from the line of briquette material emerging from the pair of shearing rollers. <IMAGE>
Patent DE-3127270-A1 (DE)
Title: Bone substitute implant as base for implantation of an artificial tooth
Inventor: LINK GOTTLIEB
IPC: A61L27/36
Filed: 1981-07-10
Abstract: Use of the endogenous bone substitute implant as base for the implantation of a tooth or of repair of bone splinterings, bone fractures etc. avoids future rejection of such implants by the body. In addition, such wounds heal very much more quickly and the surgeon is provided in the future with the possibility and the tool for preventing deformation of parts of the body.
Patent DE-3128568-A1 (DE)
Title: Process for producing a heat insulation core and heat-insulation material/dispersion adhesive mixture
IPC: C04B30/00
Filed: 1981-07-18
Abstract: The invention relates to a process for producing a heat insulation core from a granular heat insulation material in a heat insulation interspace of a building part with inner shell and outer shell, the granular heat insulation material being provided with a dispersion adhesive and introduced into the heat insulation interspace, and the dispersion adhesive fixing the grains of the heat insulation material. The dispersion adhesive (which per se would break and develop an adhesive force when mixed with the granular heat insulation material) is, before mixing with the granular heat insulation material, provided with a buffering quantity of water, which buffers the evolution of adhesive force. In other respects, the granular heat insulation material is mixed like concrete or mortar with the dispersion adhesive/buffering water mixture and introduced into the heat insulation interspace. The quantity of buffering water is then caused to evaporate, i.e. the heat insulation core is dried. The invention also relates to a heat insulation material/dispersion adhesive mixture which is prepared correspondingly with the dispersion adhesive/buffering water mixture and is packed in a package which is water vapour-tight and storable and is broken open only at the place of introduction.
Patent DE-3130102-A1 (DE)
Title: Electronic off-commutation of the stator windings of electronically commutated motors
Inventor: ZAHN DIETER
IPC: H02P6/14
Filed: 1981-07-30
Abstract: The invention relates to a circuit arrangement having a thyristor for electronic off-commutation of the coil energy of the stator windings in the case of electronically commutated motors which are used, for example, as high-quality drives in precision equipment technology. The aim of the invention is continuously to ensure the reduction in the coil energy independently of the commutating frequency, the magnitude of the coil current to the commutated off and the actual point in time of the off-commutation, without any major circuitry complexity. This is achieved according to the invention in that a thyristor is connected over each stator winding in such a manner that it is connected in the reverse direction when the operating voltage is applied to the winding. A relatively small capacitor is arranged in its triggering circuit, to the neutral point, into which capacitor a reverse-charging current flows when the coil current is interrupted and during the off-commutating pulse which is induced thereby and has a high edge gradient, the magnitude of which reverse-charging current is such that the thyristor is immediately triggered when the off-commutation pulse falls below the neutral-point potential by the threshold voltage of the thyristor.
Patent DE-3132006-A1 (DE)
Title: Process for preparing glyoxylic acid
Inventor: POLLACK WILHELM DIPL CHEM DR
IPC: C07C51/27
Filed: 1981-08-13
Abstract: The invention relates to an improved process for preparing glyoxylic acid by oxidising acetaldehyde with nitric acid. Oxidation of the intermediate glyoxal in the presence of oxalic acid yields a pure product in a simple procedure.
Patent DE-3133793-A1 (DE)
Title: Tourniquet arrangement
IPC: A61B17/132
Filed: 1981-08-26
Abstract: Tourniquet arrangement for producing ischaemia in a body part (12), in which arrangement the two ends of a strap (13) applied around the body part (12) are moved towards one another in a fastening arrangement (11) via an articulated lever device (40), which is activated by a screw spindle (24). The fastening arrangement (11) is supported on the body part (12) via a support plate (21) which projects laterally to a considerable extent, so that no areas of skin are caught between the strap (13) and fastening arrangement (11) when the strap (13) is drawn tight. <IMAGE>
Patent DE-3136826-A1 (DE)
Title: Auxiliary device for sexing chicks and for sorting chicks according to sex
IPC: A01K45/00
Filed: 1981-09-16
Abstract: Auxiliary device for use when sexing chicks and for sorting chicks according to sex, having a feeding conveyor, a second conveyor supported on a frame, a number of work stations formed along the second conveyor and sorting means on the frame for separately discharging cocks and hens, which sorting means are provided with two separate discharging means which are arranged at a distance from the second conveyor, characterised in that the sorting means at each work station are provided with two flowing troughs which are arranged beside the operator.
Patent DE-3140774-A1 (DE)
Title: Arrangement for the continuous measurement and, in particular, display of the fuel consumption of diesel engines, especially in motor vehicles
Inventor: JAKOBI FRANZ-JOSEF
IPC: G01F9/00
Filed: 1981-10-14
Abstract: A pressure transducer mounted on the external wall of a diesel feed line between an injection pump and the diesel engine, as close as possible to the injection pump, is used to measure the expansion movement of this high-pressure diesel line and the pulses picked up are fed to an electronic evaluation unit. Since the number of pulses picked up per unit time corresponds to the engine speed and the length of the pulses is a measure of the time during which diesel fuel is injected, the following equation holds: Quantity of fuel consumed =                Unit time Constant x injection duration x engine speed.   <IMAGE>
Patent DE-3143339-A1 (DE)
Title: Semiconductor device
Inventor: SCHIERZ WINFRIED ING GRAD
IPC: H01L25/07
Filed: 1981-10-31
Abstract: In a semiconductor device, at least two semiconductor components are mounted in an electrically insulated manner on the baseplate of a housing comprising metallic baseplate and insulating upper section and are embedded in insulating material. The baseplate is composed of light metal with a solderable coating. Soldered onto its internal surface is an electrically insulating intermediate disc. For the purpose of mutual support, baseplate and housing upper section have, for example, sections provided for mutual interaction which are appropriately created in the peripheral zone. The housing upper section is sealed with a lid fixed by the latching of projections and has openings for through contact lugs. The housing upper section is provided with perforations for feeding through current supply leads which are mounted on the intermediate disc and which each support a semiconductor chip. At least one current supply lead is formed in the interior of the housing to locate and fix an insulated support point for a contact lug. The perforations in the housing upper section are sealed by slides which are guided by strips and are located by latching to the housing wall.
Patent DE-3205824-A1 (DE)
Title: Sawing bench for use in sawing long wood into firewood
Inventor: CLAUSEN ARNE VINDFELDT
IPC: B27B17/00
Filed: 1982-02-18
Abstract: The invention relates to a sawing bench for use in sawing long wood into firewood. To be able to saw large quantities of long wood in a time-saving and simple manner into firewood pieces, two identical U-shaped frames are provided which are or can be set at a distance opposite one another, in such a way that their webs situated at the bottom form a place for storing the long wood, spaced from a setting-down area, and further long wood can be stacked between the legs of the frames.
Patent DE-3205928-A1 (DE)
Title: Impact-expansion dowel for anchorage in especially conically inwardly expanded drilled holes
Inventor: FISCHER ARTUR DR
IPC: F16B13/10
Filed: 1982-02-19
Abstract: The invention relates to an impact-expansion dowel for anchorage in especially conically inwardly expanded drilled holes. The impact-expansion dowel consists of a slotted expansion sleeve with an external and/or internal thread for the attachment of objects, and of an expansion body which expands the expansion sleeve and has a shaft which is guided in the internal hole of the expansion sleeve. In order to prevent the expansion sleeve pulling out from the expansion body, especially with impact-expansion dowels which are inserted into conically inwardly expanded drilled holes, the shaft of the expansion body has a circumferential groove into which a ring which presses against the wall of the internal hole of the expansion sleeve is inserted.
Patent DE-3209660-A1 (DE)
Title: Air-pressure indicator for vehicle tyres
Inventor: SONNLEITNER HEINZ DIETER DIPL
IPC: B60C23/04
Filed: 1982-03-17
Abstract: An air-pressure indicator for vehicles tyres is proposed, in which a movable part, e.g. an elastic diaphragm (13), is provided which moves when the air-pressure in the tyre changes and at the same time indirectly or directly rotates an element (21) about an axis (23a), which element emits a field. This field, for example a magnetic field, acts on a sensor (37) which is arranged fixedly and is not involved in the rotary movements of the tyre. At a specific tyre pressure and thus at a specific position of the movable part, the element (21) suddenly tilts over so that its field experiences a change in polarity with respect to the sensor (37). <IMAGE>
Patent DE-3212779-A1 (DE)
Title: Loading bridge for ramps
Inventor: ALTEN KURT
IPC: B65G69/28
Filed: 1982-04-06
Abstract: The invention is based on bridges of this type, in which the bridge superstructure has drive means for pivoting and automatically returns to its horizontal rest position when, or shortly before, the upper end position has been reached. The bridge superstructure, which is provided with an extensible and retractable projection, is, according to the invention, equipped with a device for monitoring the operating state of the projection; in addition, lowering of the bridge superstructure into its rest position is impeded when the projection is wholly or partially extended. This measure has been taken to protect against accidents and is based on the realisation that accidents during lowering of the bridge superstructure can only occur when the projection is wholly or partially extended.
Patent DE-3215045-A1 (DE)
Title: Device and switching arrangement for monitoring a lock
Inventor: REICHERT JOHN-GERHARD
IPC: B60R25/021
Filed: 1982-04-22
Abstract: Device and switching arrangement for monitoring a lock, for example a steering-wheel lock, in that monitoring circuits having monitoring wires (90, 91) are guided through the bolt (3) and its projecting portion (31) and/or the lock cylinder (4), their leads (93, 94; 95, 96) being guided within the housing (1) to the monitoring circuit (WS) and/or to the switch arrangement (6). There are provided switching arrangements, by means of which, in the event of the destruction of the bolt (3) or lock cylinder (4), the operation of consumers connected to the cable (5) is prevented and/or an alarm is triggered. The monitoring circuit (WS) works independently of external wiring from the cable (5). <IMAGE>
Patent DE-3215575-A1 (DE)
Title: Large-hole drilling device
Inventor: KLEMM GUENTER DIPL ING
IPC: E21B4/14
Filed: 1982-04-27
Abstract: The large-hole drilling device has a cuttings receiving device (14) which can be lowered into a bore hole, is rotated and, with scraper elements (45a), scrapes cuttings from the bottom of the bore hole and receives them. Located in the interior of the cuttings receiving device (14) is a fluid hammer (22) which can be switched on when required and with its piston (23) strikes a percussion tool (35) which has a percussion beam (40) which extends below the cuttings receiving device (14) and is rotated together with it. In this way, blows are exerted on the bottom of the bore hole by the percussion beam (40). The cuttings released as a result are directed into the cuttings receiving device during the rotation by the following scraper elements (45a). <IMAGE>
Patent DE-3216299-A1 (DE)
Title: Pneumatic health shoe sole
Inventor: KRAUSE GUENTER
IPC: A43B13/20
Filed: 1982-04-26
Abstract: To sum up, the abovementioned inventive idea is suitable for achieving as great as possible a degree of elasticity in a shoe sole. This is achieved in the most optimum manner in that there exists inside a normal shoe sole a cavity which is surrounded in an airtight manner by flexible material. Projecting into the latter, reachable from outside, is a valve, and by means of an air pump this abovementioned cavity can then be filled with air, it being possible in this process to regulate the air quantity as required. This pneumatic health shoe sole can best be compared to the known air-filled car tyres and other air-sprung tyre equipment of vehicles. The most optimum cushioning for sport shoes is achieved with this air-sprung shoe sole, but use would also be desirable in orthopaedics. In this connection, sports injuries of the joints, ligaments and muscles are considerably reduced and secondly existing complaints are reduced or completely avoided, such as e.g. signs of degeneration of the extremities etc.
Patent DE-3221304-A1 (DE)
Title: Process for producing dielectrically insulated solid-state circuits
Inventor: ADAM FRITZ GUENTER DIPL PHYS D
IPC: H01L21/268
Filed: 1982-06-05
Abstract: To produce dielectrically insulated solid-state circuits, specified regions of the principal faces of a silicon single-crystal substrate are converted into silicon dioxide layers and the entire surface is then coated with a polysilicon layer. Laser or electron beam treatment is used to epitaxially recrystallise those regions of the polysilicon layer which adjoin the single-crystal substrate horizontally between the silicon dioxide layers. The recrystallisation process is extended to the entire polysilicon layer and the single-crystal silicon layer produced at the surface regions situated above the regions where the single-crystal silicon layer is joined to the silicon substrate is converted into silicon dioxide, thereby producing single-crystal silicon islands which are surrounded by silicon dioxide and in which the solid-state circuits can then be arranged. <IMAGE>
Patent DE-3226003-A1 (DE)
Title: Gas/liquid contacting device
Inventor: NUTTER DALE EDWARD
IPC: B01J19/32
Filed: 1982-07-12
Abstract: This vapour/liquid contacting device suitable for fractionation towers has a plurality of grids arranged in the form of a stack. The individual grids are formed from a plurality of parallel horizontal long segments. The longitudinal axes of these segments are turned at an angle to the segment axes in the grid below. Each segment has an upwardly projecting or vertical flange, on which a liquid flows downwards as a thin film, and also a trough for reception of the liquid flowing off the flange. The trough is furnished with liquid outlet openings, which are arranged so that the liquid is passed directly to the touching upper edges of the flanges of the grid below. The gas flows upwards through openings which are provided between the flanges and the troughs of the segments. The rising gas impacts a blunt projection, which results from the lower surface of the trough and which imparts a slight angular velocity or a slight twist to the gas without a particular pressure drop and thus promotes the contact of the gas with the thin liquid layer on the flange. <IMAGE>
Patent DE-3230369-A1 (DE)
Title: Device for fastening a door
Inventor: JOHOW GUENTER
IPC: E05D11/00
Filed: 1982-08-14
Abstract: A door (2) is fastened to a housing in such a way that the door does not extend laterally beyond the edge of the housing when it is opened. Furthermore, a rail running in the housing interior behind the joint (8) between the door and the adjacent housing wall (1) in the swivelling area protects this joint (8) from being pierced by tools suitable for forcing open the housing. This rail is formed by a leg (5) of a piano hinge (4, 5, 6) which holds the door and is carried by a stirrup (3) running continuously over the height of the door and fastened to the housing wall and the pivot (6) of which is located in the housing interior. Penetration by force, e.g. with a crowbar, in the hinge area certainly leads to deformation, but deeper penetration into the housing in order to obtain a greater lever action is prevented, because hinge and housing parts joined together have to be overcome. <IMAGE>
Patent DE-3236771-A1 (DE)
Title: Frequency filter for loudspeaker enclosures with adjustable cross-over frequencies
Inventor: KEITZ MICHAEL VON
IPC: H04R3/14
Filed: 1982-10-05
Abstract: To reduce the cost of production of a frequency filter for loudspeaker enclosures with adjustable cross-over frequencies and to simplify its use, the frequency filter consists of exclusively passive components which are electrically connected to one another.
Patent DE-3236819-A1 (DE)
Title: Fitting ram for squeeze tubes
Inventor: FLIER GUSTAV
IPC: B65D35/28
Filed: 1982-10-05
Abstract: Published without abstract.
Patent DE-3238000-A1 (DE)
Title: Arc indicating device for metal-encapsulated high-voltage switching installations
Inventor: GUTALJ VLADIMIR
IPC: G01R31/327
Filed: 1982-10-13
Abstract: A rapid pressure increase in the encapsulation (1) (as a consequence of the heat of an arc) leads to a high sudden pressure difference in the cylinder spaces (32, 33) because the compensating opening (340) passes less gas per unit time than the throughpassage (31). This leads to the piston (34) moving in opposition to the spring (35), as a result of which the microswitch (36) is operated. When the temperature changes slowly, the pressure rise is also so slow that no piston movement is produced because the compensating opening (340) then provides the possibility for adequate pressure compensation between cylinder spaces (32, 33). <IMAGE>
Patent DE-3245885-A1 (DE)
Title: Broadband-saving quadrature amplitude modulation (QAM) system
Inventor: BESSAI HORST DIPL ING
IPC: H04L27/38
Filed: 1982-12-11
Abstract: The invention provides a novel broadband-saving quadrature amplitude modulation (QAM) system with low sensitivity to interference. To achieve this, the binary input signal is first split up at the transmitting end into two sub-signals with half the bit rate (1), as in the known 16-QAM system. The novelty lies in the fact that each of the sub-signals is coded in duobinary form and is then converted into a ternary signal (2) before being subjected to conventional quadrature amplitude modulation (5). The resulting signal has 9 signal states. Its bandwidth requirement corresponds to that of a 16-QAM signal, while its sensitivity to interference is around 3 dB lower than the latter. The two ternary baseband signals resulting from conventional QAM demodulation (9) are decoded at the receiving end following threshold value discrimination (11) and are combined to form a binary output signal (12) (Fig. 4). <IMAGE>
Patent DE-3311887-A1 (DE)
Inventor: LENTFER DIERCK DIPL CHEM DR
IPC: C12Q1/28
Filed: 1983-03-31
Abstract: An improved determination of peroxidase activity by end dilution titration is carried out with a benzidine derivative of the general formula I <CHEM>  where R1 stands for a hydrogen atom, a halogen atom, an amino group, a (C1-C4) alkyl group, a (C1-C4) alkoxy group, a carboxy group, a sulfo group or a carboxypropyloxy group and  where R2 stands for a hydrogen atom, a halogen atom, a (C1-C4) alkyl group, or a salt of this benzidine compound, in the presence of a non-chromogenic or low-chromogenic phenylene derivative of the general formula II <CHEM>  where R3 and R4 are equal or different and stand for a hydroxy group or an amino group, a (C1-C4) alkyl amino group or a benzylamino group.