baber/WOPTO huggingface dataset:
Patent DE-3809400-A1 (DE)
Title: Drive device for displacing a movable machine part, in particular on grinding machines
Inventor: JANUTTA REINHARD
IPC: B23B47/20
Filed: 1988-03-21
Abstract: A drive device for displacing a movable machine part is to be specified which embodies a completely different drive principle from the spindle drives usually provided for such purposes. This drive device is to be distinguished by a smaller and lighter type of construction, low-noise and low-vibration operation, lower manufacturing costs and its wide range of constructional features and uses. For the linear displacement of a movable machine part (34) relative to a fixed machine part (33), a revolving, endless tension means (26) is provided which is run over a roller arrangement (27, 28, D1, D2, U1 to U4) in which at least one transmission stage formed by two differential rollers (D1, D2) coupled to one another is integrated. The drive device according to the invention has a wide range of uses, but can be used in particular in grinding machines and other machine tools as a drive for slide rests, tables, dressing attachments and other parts and units movable in a linear manner on such machines. <IMAGE>
Patent DE-3810561-A1 (DE)
Title: Drive of small overall dimensions for gate or door systems
Inventor: MENKE PETER
IPC: E05F15/16
Filed: 1988-03-29
Abstract: To raise and lower rolling shutter doors (sliding gates), rolling grilles, awnings and the like, use is made of a driving device in which the housing part accommodating the drive motor and the control box are arranged parallel and adjacent to one another and on the same side of the hollow shaft. The driving motor is fitted with an extended armature and is connected via a stepped drive shaft to the worm gear mechanism. The limit switch arranged in the control box is, for its part, connected via an operating shaft to the hollow shaft, which meshes in an eccentrically arranged worm drive of the limit switch, thereby ensuring, overall, a markedly reduced width of the housing accommodating the entire drive motor while providing optimum operating conditions. This favourable arrangement of the individual parts of the driving device ensures that the necessary power is transmitted from the drive motor to the hollow shaft via the reduction gear mechanism. <IMAGE>
Patent DE-3813636-A1 (DE)
Title: Process for the removal of indole, quinoline bases and higher phenol derivatives from coal tar oil by extraction with supercritical gases
Inventor: BENEKE HERBERT DIPL CHEM DR
IPC: B01D11/00
Filed: 1988-04-22
Abstract: A three-stage process for the extraction of methylnaphthalene oil with supercritical carbon dioxide and an entraining agent is proposed. In this way it is possible without use of chemicals to separate indole, quinoline bases and phenols effectively from the neutral oils.
Patent DE-3817876-A1 (DE)
Title: Method and arrangement for inserting a character into a sequence of characters
Inventor: OLTMANNS FRED
IPC: G06F17/24
Filed: 1988-05-26
Abstract: When inserting a character (Z), assigned to a first switch-over mark (shift, escape) (U1) into a sequence of characters, assigned to a second switch-over character (U2), for example when inserting a digit into a sequence of letters in a teletypewriter, there is the danger that after entering the first switch-over mark (U1), assigned to the character (Z) the remainder of the sequence of characters is likewise interpreted as being assigned to the first switch-over mark (U1). When inserting the character (Z), a second switch-over mark (U2) is automatically generated in addition to the first switch-over mark (U1) and inserted into the sequence of characters so that the coding of the remainder of the sequence of characters remains unchanged. During a subsequent immediate correction not only the character (Z) is deleted, but the two switch-over marks (U1, U2) are also deleted. The method and the arrangement are particularly suitable for editing texts in teletypewriters in which the characters are represented according to a transparent code. <IMAGE>
Patent DE-3818749-A1 (DE)
Inventor: HANSEN JENS DIPL ING
IPC: H03D3/00
Filed: 1988-05-30
Abstract: A receptor circuit with means for compensating, as a function of the effective modulation, the medium frequency of a filter (2, 6, 10, 11), which is relatively narrow compared with the width of the channel-band, includes a circuit for modifying the signal transmission characteristic of the IF and/or LF part, comprising a signal identification part (28), with circuits (29-33) for determining values characterizing reception or interference conditions, having inputs which are each connected to a circuit point of the IF or LF part holding the signal to be processed and outputs for reception or interference conditions. Said circuit also includes a signal regeneration part (600) for signals characteristic of reception or interference conditions, with at least one amplitude-threshold or time-threshold circuit, the inputs of which are connected to the outputs of the signal identification part (28). It further includes a signal emitting part (200, 400) for sending to individual stages of the IF or LF part the regenerated signals characteristic of reception or interference conditions as control signals for influencing the processing characteristic of the signal processing part. Inputs of the signal emitting part (200, 400) are connected to outputs of the signal regenerating part (600). A timing circuit (700) is provided which only produces an enabling signal for terminating the emission of the control signal when the signal disturbance has stopped for a predetermined minimum interval of time.
Patent DE-3820554-A1 (DE)
Title: Spark plug for an internal combustion engine
Inventor: QASRAWI AZZAM
IPC: H01T13/32
Filed: 1988-06-16
Abstract: A spark plug is specified which has an outer housing, a centre electrode, an insulator and an essentially U-shaped side electrode or earth electrode. The centre section of the side electrode is produced from a single material, such as a nickel alloy for example. The other parts and/or sections of the side electrode consist of an outer layer, for example of a nickel alloy, and of an inner core which can be produced, for example, from copper. The fact that there is no continuous copper core in the side electrode increases the life of the spark plug according to the invention.
Patent DE-3821729-A1 (DE)
Title: Sealing hook
Inventor: FRIESE PAUL
IPC: B60D1/04
Filed: 1988-06-28
Abstract: The features of the summary of the sealing hook are represented as follows: the introduction holes 2 of the single-sealing hook and 8 of the double-sealing hook are matched in such a manner that the securing pins 3 do not lose their securing function. After the fitting of the compression spring 7 and securing pin 3 the insertion hook 9 is pressed into the closure position. For lasting security, in addition to the sealing wire 5 a fitting pin may be pressed into the hole 2, the fitting pin having a corresponding hole. <IMAGE>
Patent DE-3824309-A1 (DE)
Title: Method for evaluating traffic information, which is received in digitally coded form in a data message, as well as a broadcast radio receiver
Inventor: DUCKECK RALF
IPC: H04H40/27
Filed: 1988-07-18
Abstract: By means of the RDS system it is possible to transmit traffic information in digitally coded form as a data message. Decoding and evaluation of the traffic information, with subsequent storage, is carried out in the receiver. For evaluation it is necessary to synchronise a computer, which is provided in the decoder, for each new cycle of traffic information. In the event of unfavourable reception conditions, synchronisation may fail as a result of a data word which is transmitted at the end of a cycle of traffic information as an end marking. Reliable and faster synchronisation, particularly in the case of unfavourable reception conditions, can be achieved if an edge bit is evaluated which exists a plurality of times in the data message and is changed after completion of a complete cycle of traffic information. The state change of the edge bit can then be used for synchronisation of the cycle evaluation. <IMAGE>
Patent DE-3824467-A1 (DE)
Title: Injection valve
Inventor: GENTSCHEFF JORDAN DIPL ING
IPC: F02M63/00
Filed: 1988-07-19
Abstract: An injection valve is provided with two rows of nozzle apertures, which are opened and closed by two spring-loaded closing elements, actuatable independently of one another and independently of the fuel pressure. With the injection valve according to the invention it is possible, in conjunction with a known fuel injection pump, controllable by way of rotatable bevelled edges, to control the timing and delivery over a wide range.
Patent DE-3827693-A1 (DE)
Title: Winch for a mining machine, in particular for a shearer loader in underground use
Inventor: OBERSTE-BEULMANN KLAUS DIPL IN
IPC: E21C31/00
Filed: 1988-08-16
Abstract: The prior art includes equipping shearer loaders with three-phase motors and regulating these motors via a frequency converter. It is also known to split up the frequency converter and to allocate its rectifier to the roadway but its inverter to the shearer loader in order to be able to make a speed adjustment of the three-phase motor at the machine by means of the inverter. Another solution for regulating the speed of the winch equipped with a three-phase motor is proposed. To this end, the winch housing (1) is equipped with a hydraulic circuit (12), the fluid pump (10) of which, continuously adjustable in both delivery directions, is connected to the output shaft end (5) of the three-phase motor (4) and the fluid motor (11) of which is directly connected to the central sun gear (13) of an epicyclic gear stage (9). With a spur gear (6) fastened to its output shaft end (5), the three-phase motor (4) engages in the peripheral tooth system (7) of the outer gear rim (8) of the epicyclic gear stage (9) and superimposes the variable speed of the fluid motor (11). <IMAGE>
Patent DE-3830687-A1 (DE)
Title: Calibrating method for a controller for controlling the air ratio of gas engines
Inventor: DIEHL MARKUS DIPL ING
IPC: F02D41/14
Filed: 1988-09-09
Abstract: To control the fuel/air mixture for internal combustion engines, the invention proposes a lambda controller (10) in conjunction with a calibrating device (11) for the desired value (17). The calibrating device is configured and programmed in such a way that it automatically adjusts the desired value, namely the lambda ratio, in the direction of the ignition limit of the mixture, and continues to do this until a misfire detector (13) signals a misfire. The desired value is then corrected by a certain amount in the direction of a richer mixture. The calibrating device (11) then begins to adjust the desired value in the direction of a leaner mixture again. As a result, the air ratio  lambda  moves periodically in a range between the ignition failure limit and a lower value, and the operation of the internal combustion engine thus takes place in a range in which the NOx emissions are at their lowest. <IMAGE>
Patent DE-3831585-A1 (DE)
Title: Cutter for cutting and mixing a foodstuff mass, in particular for sausage manufacture
Inventor: KRAUS FERDINAND
IPC: B02C18/06
Filed: 1988-09-16
Abstract: In the case of cutters for cutting and mixing a foodstuff mass, in particular for sausage manufacture, it proves to be difficult to seal the emergence point 6 of the knife shaft 4 of the cutter, situated in the working space of the cutter, with respect to its shaft housing 5. In particular, the sealing is to be effective against penetration by the foodstuff mass or by cleaning water. For the purpose of achieving a very good sealing effect while simultaneously avoiding severe friction in the sealing region, the emergence point 6 of the knife shaft is sealed with respect to the shaft housing 5 by means of an axial sealing ring arrangement. <IMAGE>
Patent DE-3834121-A1 (DE)
Title: Underwater vessel-side cleaning device driven by the flow due to the motion of the vessel
Inventor: FIEDLER ARNO ING GRAD
IPC: B63B59/08
Filed: 1988-09-29
Abstract: Construction consisting of three sheet-metal parts. Openings in the base and in the side parts. Rudder drive by means of spring, hauling rope (accessible slackening and heaving cable). Lever with roller fitting and deflecting plate. Self-sharpening cleaning edges/blades.
Patent DE-3834606-A1 (DE)
Title: Device for fixing a roll ring
Inventor: BUCHEGGER RUDOLF DIPL ING
IPC: B21B31/10
Filed: 1988-10-11
Abstract: In the case of a device for fixing a roll ring (4) on a roll shaft (2) mounted in two parallel roll housings (1a, 1b) on either side of the roll ring, a radial prestress is produced in the roll ring (4) by means of a clamping device (18) and a wedge sleeve (8) which can be axially clamped. In addition, the wedge sleeve (8) carries the roll-shaft bearing arrangement (3a). In order to be able to adjust simply and accurately the axial and radial prestress of the roll ring (4) despite the additional roll-shaft bearing arrangement (3a), the clamping device (18) acts, on the one hand, on the roll ring (4), clamped between two thrust rings (22, 23), via a first adjusting drive passing through the roll housing (1a) and acts, on the other hand, on the wedge sleeve (8) via a second adjusting drive passing through the roll housing, one of the two adjusting drives receiving the roll-shaft bearing arrangement (3a). <IMAGE>
Patent DE-3836103-A1 (DE)
Title: Hydraulic piston/cylinder arrangement
IPC: F15B11/036
Filed: 1988-10-22
Abstract: Arranged between cylinder part (1) and piston part (2) are a multiplicity of pressure or stroke spaces (6, 7, 8, 12, 13) which can be connected independently of one another via reversing valves essentially free of choking either to a pressure source or a hydraulic reservoir. <IMAGE>
Patent DE-3838655-A1 (DE)
Title: Process and apparatus for filling vehicle body cavities with foam
Inventor: SCHUECH ERWIN
IPC: B29C44/18
Filed: 1988-11-15
Abstract: To fill elongated vehicle body cavities (2) with foam, a bore (3) is provided in the cavity wall (1). A sleeve (4) with a continuation (5) is inserted into the bore (3). The continuation (5) has sections (10, 11) which swing open to form an outlet opening (13) for the foam (14) into the cavity section (2') to be filled with foam and at the same time close off the cavity (2) in such a way that no foam (14) can flow away downwards. Instead of the sections (10, 11) which can be swung open, also possible are other configurations of the continuation for forming outlet openings and for expansion of the continuation for preventing the flowing away of foam (14) downwards. <IMAGE>
Patent DE-3840565-A1 (DE)
Title: Process for the hydrogenation of organochlorine compounds and neutralisation of the hydrogen chloride produced, and neutralising agents for hydrogen chloride produced from organochlorine compounds
Inventor: JANKOWSKI ALFONS DIPL CHEM DR
IPC: A62D3/37
Filed: 1988-12-01
Abstract: In a process for the hydrogenation of organochlorine compounds, such as of chlorine-contaminated mineral oils or chlorine-containing carbon-derived substances and in particular of waste substances, in which the chlorine produced as hydrogen chloride is neutralised, precipitation of neutralisation products and blockage of components of the hydrogenation plant by neutralisation products is suppressed by the neutralising agent being liquid under reaction conditions or being soluble in oil, in particular homogeneous, or being present on, in particular applied to, a support material, in particular a large pore support material.
Patent DE-3841085-A1 (DE)
Title: Magnetic recording medium
Inventor: WIMBERSKY WERNER
IPC: G11B5/706
Filed: 1988-12-07
Abstract: The invention relates to a magnetic recording medium which has a compatibility, regarding the technical storage data, which is necessary for a certain system, for example the VHS video system. The recording medium contains uniaxial magnetic pigments having a remanence of >/= 0.2 tesla and, as non-magnetic additive, spherical alpha -Fe2O3 pigments. The BET value of these non-magnetic pigments is less than or equal to the BET value of the magnetic pigment, which is in the order of 20-35 m<3>/g.
Patent DE-3907358-A1 (DE)
Title: Toilet seat with protective cover
Inventor: PETERS GERHARD
IPC: A47K13/14
Filed: 1989-03-08
Abstract: A toilet seat with a device for drawing on a tube-like protective cover (13) includes two sitting arms (1, 2) with spaced-apart front ends (6, 7). The sitting arms (1, 2) contain a supply channel (9) for the tube-like protective cover (13), which supply channel extends in their longitudinal direction and opens out at their front ends (6, 7). In the region of the rear ends (10, 11) of each sitting arm (1, 2) there are arranged in each case an unrolling device (4) for the unused protective cover (13) and a rolling-up device (5) for the used protective cover (13) which is slit open by the slitting knife (14). The protective cover (13) is fitted round the front end (6, 7) of its sitting arm (1, 2) in the manner of a sleeve and envelopes the sitting arm (1, 2) as far as the region of its back end (10, 11). <IMAGE>
Patent DE-3909009-A1 (DE)
Inventor: STREUBEL HANS
IPC: B22D11/04
Filed: 1989-03-18
Abstract: A casting machine for casting preliminary profiles for section rolling comprises a cooled mould 2 and a strand guide 3 arranged downstream of the latter. 
<??>To improve economy in the production of sectional steel, extension surfaces 4b, 5b of the mould 2 are inclined at an angle of 20 to 45 DEG to the plane of the web surfaces, strand-guiding rollers 11, 12, 13 are arranged downstream of the web surfaces 4a, 5a, extension surfaces 4b, 5b and adjusting surfaces 4c, 5c, and guide elements 15 and 18, respectively, adjustable in the same direction are arranged downstream of adjustable end walls 1c, 1f provided with a projection 7a projecting into the moulding space. 
<IMAGE>
Patent DE-3909377-A1 (DE)
Inventor: KEIL GEORG
IPC: B43K24/08
Filed: 1989-03-22
Abstract: Various forms of switching devices for ball-point pens are known, by means of which the insert is received so as to be longitudinally displaceable between a retracted and a writing position inside a shaft (1) with the assistance of a spring. However, the essential feature of the known embodiments is that a plurality of movable construction elements interact within the framework of the switching device. To simplify the assembly, but in particular to reduce the components required in total within the framework of the switching device, a writing instrument according to the invention is proposed, whose switching device consists solely of an insert part (7), arranged fixedly inside the shaft (1), and an actuating device (4) which is arranged movably inside said insert part and constructed integrally with the pusher (3). The actuating device (4) has a component which is intended to engage with the insert part (7), can be deflected elastically and is swivelled into mutually perpendicular planes for engagement or disengagement. The said component, constructed as a switching rod (13), is provided with switching teeth (22, 23) which interact with control cams of the insert part (7). Both construction elements forming the switching device are constructed as plastic injection mouldings which allow smooth switching movements and secure switching positions. <IMAGE>
Patent DE-3911369-A1 (DE)
Inventor: KORN HANS
IPC: B03B9/00
Filed: 1989-04-07
Abstract: Vibratory sorters for the wet processing of sand, gravel, recycling building materials and the like have a resiliently mounted or suspended tub-shaped trough (5) with floor surfaces (7,8) rising relatively steeply from the deepest point (6) on both sides. These floor areas are partially covered with false floors (7.1, 7.2, 8.2) and partially with bar screens (8.1). On the one hand, they end in a discharge (10) for the finished material, on the other hand in a discharge (9) for the floating components. A vibratory drive (16) for the trough and a feed device (14) for the mixture to be sorted complete the basic components. In order to improve the loosening in the filtering bed (0.1) of the mixture to be sorted, a portion of the floor areas (7,8) is constructed as an up-current floor (21) divided up into chambers (28) with pressurised water feed (24, 25, 26). The up-current floor (21) extends from the deepest point (6) of the trough (5) in the direction of the discharge (10) for the finished material. In the region of the discharge (9) for the floating components, the floor area (7) of the trough (5) is constructed as a flap (11) which is swivellable about a transverse axis (31) and is sealed both with respect to the floor area (7) and also with respect to the side walls of the trough (5). With the aid of this flap (11), the height of the filtering bed and the length and inclination of the floor area (7) and thus the separating cut can be actively influenced. <IMAGE>
Patent DE-3911469-A1 (DE)
Title: Drilling installation
Inventor: SCHAUERTE MANFRED DIPL ING
IPC: E21B7/20
Filed: 1989-04-08
Abstract: In a drilling installation which essentially consists of a drill carriage (1), a drill stem (2), a drilling tool (14), and in particular pneumatically or hydraulically operated drive units (9), the drilling installation serving to make earth bores, in particular to lay service lines in a trenchless manner, such as for water, power, telephone or the like, it is proposed that a percussion or drilling implement (3) be arranged at the tip of the drill stem (2). <IMAGE>
Patent DE-3921019-A1 (DE)
Title: Regulating four-wheel drive of motor vehicle - by periodically calculating signal related to pertaining travel speed, cornering speed, acceleration and slip
Inventor: KAWAI HIROAKI
IPC: B60K17/348
Filed: 1989-06-27
Abstract: The method controls the drive by periodically calculating a signal related to present travel speed, the present cornering speed, the present acceleration and the present slip.  This signal forms a parameter. The control variable for feeding to a drive force distribution device is expressed as the sum of the control variables for the preceeding timepoint and the value obtained by calculating at the present time point.  This latter calculated value is expressed as the sum of the control variables corresp. to the present state of the vehicle and the control variables corresp. to the change in the vehicle's state.
Patent DE-3924771-A1 (DE)
Inventor: MORIKAWA KOJI
IPC: F02D41/02
Filed: 1989-07-26
Abstract: A two-stroke engine has a scavenge pump provided in an intake passage, and a fuel injector provided for injecting fuel directly into a cylinder of the engine. A plurality of escape air rates, each of which represents a rate of escape air at scavenging the cylinder, are stored in table 48. A rate of escape air e is derived from the table in accordance with engine operating conditions such as speed N and throttle position  phi . An amount of air actually induced into a cylinder Q1 is calculated based on the derived rate of escape air e and an amount of intake air Q detected by an air-flow meter. The quantity of fuel injected by the fuel injector is calculated based on engine speed N and the amount of air Q1 induced in the cylinder. <IMAGE>