baber/WOPTO huggingface dataset:
Patent DE-3739709-A1 (DE)
Title: Interlocking cabin for model railways with short-circuit-proof, electronic switching component and special diamond rail distributor for forming points routes according to the 2 key principle
Inventor: SCHEIB ARTUR DR ING
IPC: A63H19/32
Filed: 1987-11-24
Abstract: Interlocking cabin for model railways of all systems with short-circuit-proof, electronic switching component and diamond rail distributor with diodes as internal connections, operating according to the 2 key principle, used in traffic operations, permitting the formation of points routes, characterised by requiring an extremely small amount of space and therefore usually being capable of being mounted together with the tracks on one system board. All that the model railway enthusiast has to carry out is to attach a diagram of his track system to the control board, fit the points actuation key within this blind diagram on the control board, produce the internal diode connections with the diamond rail distributor. The last mentioned operation can be carried out effortlessly using plug-in diodes. Knowledge of electronics is not required.
Patent DE-3739736-A1 (DE)
Title: Control unit for a hydraulic working circuit
Inventor: WEIGERT WILHELM DIPL ING
IPC: F15B13/04
Filed: 1987-11-24
Abstract: What is proposed is a control unit (10) for a hydraulic power lift (11) in a mechanical/hydraulic lifting-mechanism control in tractors, which, during operation with preceding additional directional valves (45, 46), during their change-over from the working position to neutral, prevents pressure surges in the neutral circulation channel (49) of the following control unit (10) and therefore undesirable lifting pulses on the power lift (11). A mechanically activated pilot-control slide (14), in which the spring-loaded main control slide (19) with assigned pressure space (21) is arranged, passes through a control chamber (17) which is connected to a pump channel (38) and which is separated from the circulation chamber (15) connected to the neutral circulation channel (49). In the absence of a neutral circulation flow and therefore if the pressure in the circulation chamber (15) has collapsed as a result of a switched additional directional valve (45), the inflow pressure conveyed from the switched pump channel (38) into the pressure space (21) prevents the pilot-controlled main control slide (19) from closing. <IMAGE>
Patent DE-3741122-A1 (DE)
Title: Car tyre with changeable tread profile
Inventor: WILLICH WALTER
IPC: B60C11/02
Filed: 1987-12-04
Abstract: In a tyre with two layers which lie one on top of the other and between which an air chamber with separate valve is located, the tread profile can be changed by deflating this air-filled layer. After the intermediate air-filled layer is deflated, the profile of the inner tyre presses on the outer tyre and changes its tread profile. In particular, the inner tyre is to be pressed on spikes installed in the outer tyre in such a way that they protrude. By means of a litre-size bottle of compressed air which is carried in the vehicle, the layer between the tyres can be filled with compressed air again. This permits rapid changing of the tyre with or without spikes. Particularly in morning work traffic with a surprise covering of snow and ice, the possibility of changing the profile rapidly would reduce the number of traffic jams and accidents. Furthermore, a tyre with a multiple cell or hose system, with appropriate valves, cannot burst suddenly.
Patent DE-3803074-A1 (DE)
Title: Small atlas with searching aid
Inventor: UMBACH WOLFGANG
IPC: G09B29/10
Filed: 1988-02-03
Abstract: A multipurpose atlas which is very clear and nevertheless contains a great number of individual pieces of information is easy and safe to handle and makes possible rapid identification of all destinations, in particular also those necessary for rescue services. This small atlas has an associated searching aid, which is connected detachably to the cover or individual sheets, in the form of a transparent searching strip which is of the length and/or the width of the individual map. This searching strip is equipped with searching-aid lines which constitute a uniform destination grid producing searching boxes of the same format, the searching boxes being dimensioned in such a manner that they are visible at a glance in each case for an overflying helicopter or aeroplane. As a result, such a small atlas can be used not only by a normal citizen but also by the rescue service, for example to be able rapidly to identify and fix the destination area or the destination point of an accident to which they are being called, in order then to optimise the flight plan accordingly. <IMAGE>
Patent DE-3804150-A1 (DE)
Title: Articulated-arm awning
Inventor: RABBA HELLMUT
IPC: E04F10/06
Filed: 1988-02-11
Abstract: Published without abstract.
Patent DE-3806511-A1 (DE)
Title: Device for changing yarn rollers
Inventor: HOELLDAMPF KUNO DIPL ING
IPC: D01H9/00
Filed: 1988-03-01
Abstract: A device which serves for changing the yarn rollers in spinning machines, in particular the roving rollers in carded yarn ring spinning machines, consists of a supply unit arranged pivotably on the frame of the spinning machine and a removal and conveying unit which is displaceable in the vertical direction. The supply unit is provided with receptacles for the new carded yarn rollers to be inserted, these receptacles being brought into engagement with the removal and conveying unit by pivoting. The latter consists preferably of two vertically arranged slotted guide profiles, in which the shafts bearing the carded yarn rollers can be raised and lowered with the aid of displaceable slide pieces.
Patent DE-3814141-A1 (DE)
Title: Air-directing device for free-blowing fans
Inventor: RESCH KARL DIPL ING DR
IPC: F04D29/44
Filed: 1988-04-27
Abstract: The invention relates to fans having a free-blowing radial or diagonal impeller, in particular for use as a roof fan or installation fan. An air-directing device for free-blowing fans with a radial or diagonal impeller is designed, according to the invention, as a fixedly installed, rigid air-directing device, which generates a negative initial swirl and through which flow takes place predominantly axially, and is arranged in front of the impeller. <IMAGE>
Patent DE-3817997-A1 (DE)
Title: Apparatus for cleaning a line
Inventor: MORAWSKI GERD DIPL ING
IPC: B08B9/055
Filed: 1988-05-27
Abstract: For the purpose of cleaning a line (2) which carries, in particular, a pasty fuel to a reactor (1), use is made of a scraper (10) which is sent, with the aid of a limited quantity of water, through that section of the line (2) which is situated between the entry of the latter into the reactor (1) and a three-way valve (4) arranged near to the inlet. The quantity of water is kept ready in a container (11) which is connected to a compressed-air connection (15) and a rinsing line (6). The rinsing line (6) opens into the line (2) downstream of the three-way valve (4) (drawing).
Patent DE-3821501-A1 (DE)
Title: Power-assisted rack and pinion steering system, particularly for motor vehicles
Inventor: LANG ARMIN
IPC: B62D5/04
Filed: 1988-06-25
Abstract: In an electrically assisted rack and pinion steering system, an electric motor (8) is controlled in accordance with a signal from a torque-measuring device. In order to avoid maloperation, a safety switching device (28) is provided, this containing two switches (25, 26) operable by a lever (24). Connected to the rack of the rack and pinion steering gear is a recirculating ball nut which is connected via a recirculating-ball race to a screw (11). The screw (11) can be displaced axially by way of a spring bellows (17) but is connected rigidly in terms of rotation to an output part (16) of a clutch (12), which output part can be coupled to and decoupled from the electric motor (8). The screw (11) is connected in an axially displaceable and rotatable manner to the fixed housing (13) by two flexible intermediate rings (19, 20) and two thrust bearings (21, 22). If, in the case of a malfunction, the axial displacement does not correspond to the torque at the steering wheel, the clutch (12) is disengaged by one of the two switches (25, 26). <IMAGE>
Patent DE-3829793-A1 (DE)
Title: Process and measuring means for determining the quality of liquid fluxes, in particular in automatic soldering apparatus
Inventor: HUMMEL GABRIELE
IPC: G01N27/22
Filed: 1988-09-02
Abstract: Process for determining the quality of liquid fluxes, in particular in automatic soldering apparatus, wherein, if desired at repeated time intervals, the solids, diluent and/or water content are quantitatively determined by measurements; the measured values are used to determine the current relative solids content; and diluent is added to adjust the relative solids content back to the original value. To be able to determine the water content without carrying out reactions, for example in the form of cloudiness, if desired, in very short repeated time intervals and without loss of time, the water content of the flux is determined via a capacitative measurement using the flux as dielectric by using the comparison of the dielectric constant determined from the current capacity with the dielectric constant of the unused flux to determine a change in the water content. Furthermore, a measuring means is described for carrying out the process with a measuring cell which receives a liquid flux and which, to determine the current dielectric constant of the flux, has a capacitor together with an inlet port and an outlet port via which flux can be introduced between the electrodes of the capacitor.
Patent DE-3831221-A1 (DE)
Title: Vacuum distillation unit with an electrically controlled bypass between concentrate pump pressure line and vacuum distillation vessel
Inventor: LEHMANN HARALD
IPC: B01D1/00
Filed: 1988-09-09
Abstract: In vacuum distillation units, in order to prevent both the jamming of the concentrate pump by solids precipitating out of the medium to be concentrated and also to retain the pumpability of concentrated media of relative high density, an electrically controlled bypass is inserted between the pressure line of the concentrate pump and the vacuum distillation vessel. When the bypass valve is open, the concentrate pump is switched on automatically by an electrical controller regularly for a certain time, as a result of which jamming is prevented. Media of relatively high density can be pumped out from the vacuum if the concentrate pump runs for a certain time with the bypass open before the medium is pumped off.
Patent DE-3831654-A1 (DE)
Inventor: BEYERSDORF HARTWIG
IPC: G08B17/107
Filed: 1988-09-17
Abstract: Operation method for an optical smoke detector, in which in order to detect smoke at least one light- sensitive receiver measures the useful scattered radiation which proceeds from an element in space, which is situated in the region of intersection of the directed field of view of the light-sensitive receiver and the directed beam of a light source, in order to detect the extraneous scattered radiation generated by contamination of the measurement chamber the light- sensitive receiver or a second light-sensitive receiver detecting the radiation which proceeds from a surface element of the measurement chamber, characterised in that the reflection radiation of an illuminated surface element is measured. 
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Patent DE-3832207-A1 (DE)
Title: Process for operating electrochemical cells equipped with solid electrolytes using unsoftened, undemineralised feed water
Inventor: BAUMANN HANS DR
IPC: C25B1/13
Filed: 1988-09-22
Abstract: An electrochemical cell equipped with a solid electrolyte (1) is operated directly with unsoftened, undemineralised feed water (6) by feeding the latter, loaded with hardness formers (Ca<2+>; Mg<2+>), into the anode space (3) of the cell and at the same time feeding the cathode space (5) with an acid (7) in an amount which is sufficient to dissolve, and keep in solution, all hardness formers migrated into the cathode space (5). The solution withdrawn from the cathode space (5) together with the excess of added acid and cathode-side reaction products is further treated outside the cell. The excess acid is neutralised and the dissolved hardness formers are precipitated. <IMAGE>
Patent DE-3833227-A1 (DE)
Title: Wedge disc
IPC: E02D5/76
Filed: 1988-09-30
Abstract: The invention relates to a wedge disc for use in the retention of grouted anchors or injected anchors having a tension member, comprising a central bore through which the tension member extends and a first and a second wide side, a projecting positive-locking collar being formed on the first wide side for a joint-overlapping bond, and a locating recess being formed on the second wide side. In order to obtain a configuration which is simpler in construction and more advantageous to use, the invention proposes that the locating recess (15) be of suitable design for the engagement of the positive-locking collar (14), and that the positive-locking collar (14) have a configuration tapering in a funnel shape to the inside (funnel T2). <IMAGE>
Patent DE-3833548-A1 (DE)
Title: Process and apparatus for producing mouldings from plastics granules (pellets)
IPC: B29C43/00
Filed: 1988-10-01
Abstract: The invention relates to a process and an apparatus for producing mouldings from plastics granules (pellets) in a mould of a multipart construction, comprising mould cavity and mould cover, which can be displaced by a pressing device, by feeding the granules into the mould cavity, heating by means of hot gas let into the mould, pressing and subsequently cooling the mould. It is the object of the invention to provide a very simple possible way of producing mouldings from plastic in a mould of a simple construction which is distinguished by high productivity and allows outstanding mouldings to be produced. The invention consists in that the hot gas is allowed to escape through gaps, the width of which is smaller than the smallest dimension of the granules, in that the hot gas supply is switched off when significant parts of a significant proportion of the granules have melted, and in that the pressing operation is carried out immediately after switching off the hot gas supply, although parts of the granules are at least partially unmelted.
Patent DE-3833684-A1 (DE)
Inventor: MATTHEES KLAUS DIPL ING
IPC: F16L39/04
Filed: 1988-10-04
Abstract: A fluid feed device comprises a hub (2) with central feed channel (3) which opens into a first pressure chamber (5) and a plurality of parallel feed channels (4) which are arranged around the central channel and open into second pressure chambers (6). The channels (3, 4) are supplied by way of ducts and annular grooves in the hub (2) and in a non-rotating annular member (7) which surrounds the hub. To accommodate axial tolerances, the annular member (7) and a coaxial cover (8) adjacent thereto each have a respective pair of claws, which are oriented towards each other and disposed in slidable engagement in a cross-slotted sheave (12). The channel arrangements (31 to 37; 41 to 47) open out in the claws and these channel arrangements are connected by means of connecting ducts which extend in the sheave (12) and open out at slot faces covered by the claws. <IMAGE>
Patent DE-3834137-A1 (DE)
Title: Frame for installation into a ceiling, a ceiling substructure or a wall, having a removable covering panel
Inventor: ROTH ECKART
IPC: E05C17/06
Filed: 1988-10-07
Abstract: A frame (3) for installation into a ceiling (1) or the like is provided with a covering panel (2) which is mounted on the frame (3) such that it can pivot in the region of one panel side (10). In the closed position, the covering panel (2) is inserted into the frame and, in the region opposite the pivot axis, is retained on the same by means of a retaining device (11) arranged behind the covering panel (2). The pivot axis is formed by at least one pin (15) which is fastened on the frame (3) in a rear region of the covering panel (2), at a distance from said panel side (10). The pin (15) is mounted such that it can pivot in a guide slot (19), which extends at right angles with respect to said panel side (10) and is located on the covering panel (2), and can be displaced in the longitudinal direction of said slot. Upon opening, the covering panel (2) is first of all pivoted into an oblique intermediate position in which the panel side (22), remote from the pin (15), is free from the frame. Thereafter, the covering panel (2), with the displacement of the pin (15) in the guide slot (19), can move away from the frame part (4) in the vicinity of the pin (15) and can pivot further into the open position. <IMAGE>
Patent DE-3835190-A1 (DE)
Inventor: BRUNS KLAUS PROF
IPC: C07C49/323
Filed: 1988-10-15
Abstract: Isomeric trimethylbicyclo[4.3.0]nonane derivatives which are used as fragrances are described.
Patent DE-3835803-A1 (DE)
Inventor: WEBER GEORG
IPC: C09K19/42
Filed: 1988-10-20
Abstract: PCT No. PCT/EP89/00178 Sec. 371 Date May 15, 1989 Sec. 102(e) Date May 15, 1989 PCT Filed Feb. 27, 1989 PCT Pub. No. WO89/08691 PCT Pub. Date Sep. 21, 1989.Supertwist liquid crystal display elements with excellent steepness of the characteristic are obtained, if the nematic liquid crystal mixture satisfies the following conditions: a nematic phase range of at least 60 DEG  C., a viscosity of 30 mPa.s or lower, and  DELTA  epsilon / epsilon  ORTHOGONAL <2.0, where DELTA  epsilon  is the dielectric anisotropy and  epsilon  ORTHOGONAL is the dielectric constant in the direction of the short axis of the liquid crystal molecules.
Patent DE-3840560-A1 (DE)
Title: Semiconductor device and method for fabricating it
Inventor: OZAKI HIROJI
IPC: H01L21/3205
Filed: 1988-12-01
Abstract: When a bit line is formed by etching it is possible, in the event of the etching mask being displaced with respect to the intended etching locations, for defects to be formed in the active zones and the contact holes. If a voltage is applied to a damaged active zone, a high thermal stress occurs at the defect which interrupts the active zone and as a result renders the semiconductor device unusable. Consequently, the presence of such defects leads to a reduction in the fabrication yield. The semiconductor device according to the invention has a stabilised wiring resistance and carries out data read and data write operations. On a semiconductor substrate (1), a MOSFET and a capacitor are provided. An interlayer insulating film (4) is formed in such a way that it covers the MOSFET and the capacitor. In the interlayer insulating film (4) a contact hole (5) is formed in such a way that it is possible for the connection section of a source/drain region (51) of the MOSFET to be exposed. Buried in said contact hole (5) there is a buried layer (11) which consists of polysilicon or doped polysilicon and which is electrically connected to a source or drain region (51) of the MOSFET. A bit line (9) is ohmically connected to the buried layer (11). The semiconductor device and the method for fabricating such semiconductor device can be used in the entire field of semiconductor technology. <IMAGE>
Patent DE-3844319-A1 (DE)
Title: Additional seat for a motor vehicle, in particular a child seat arranged on a seat of a passenger car
Inventor: KNATZ GERHARD
IPC: B60N2/28
Filed: 1988-12-30
Abstract: The additional seat for a motor vehicle, in particular a child seat arranged on a seat of a passenger car, has at least one scissors-type frame (2), one end of which holds the seat (1) and the other end of which is connected to the vehicle body (9). <IMAGE>
Patent DE-3901298-A1 (DE)
Title: Push-pull circuit
Inventor: NUTZ KARL-DIETHER DIPL ING
IPC: H03K17/16
Filed: 1989-01-18
Abstract: In a push-pull circuit with a logic circuit which drives a first and a second transistor, a capacitor is provided one electrode of which is connected to a reference point when the first transistor switches through and the other electrode of which is connected to the reference point when the second transistor switches through. In addition, two current sources are provided which are used for recharging the capacitor. The push-pull transistor to be turned on in each case is only turned on when one of the two capacitor potentials exceeds a reference value.
Patent DE-3901931-A1 (DE)
Inventor: SCHOENBORN KARL-HEINZ DR
IPC: A61B18/24
Filed: 1989-01-24
Abstract: A fibre optical waveguide having a core region (2) and a casing (3). For the purpose of radiate irradiation of tubular hollow systems by laser beams introduced axially at one of its ends, at least one reflecting surface (4) is provided at the exit end of the waveguide. The reflecting surface (4) formed in the core region (2) and delimits a hollow space (5), open towards the exit end, in the core region (2). <IMAGE>
Patent DE-3908982-A1 (DE)
Inventor: SCHERZ MICHAEL DR RER NAT DR M
IPC: G08C23/00
Filed: 1989-03-18
Abstract: A device for the transmission of signals which can be split up into at least one AC component between a rotor and a stator from a transmitting unit to a receiving unit with the aid of pairs of toroidal coils whose coil windings form parts of the transmitting or receiving unit and which are disposed with inductive coupling coaxially with the rotation axis of the rotor is to be developed with a view to generating rpm-related measured values. This is achieved according to the invention by providing at least one pair of toroidal coils (13, 14; 15, 16) for the voltage supply of components on the rotor, at least one further pair of toroidal coils (17, 18) for transmission from the rotor to the stator of the parameters to be measured with a measuring device on the rotor, a sensor element (43) to measure the rpm of the rotor and a switching unit (44) with the aid of which measured values relating to the rpm of the rotor can be further processed or displayed. 
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Patent DE-3923107-A1 (DE)
Title: Recording and playback appts. for data disc. e.g. CD - uses combination of spring and arms to retain disc in position and resist vibration
Inventor: RIESTER THOMAS
IPC: G11B33/04
Filed: 1989-07-13
Abstract: The appts. (1) has a magazine (2), a recess (3), for the data device, e.g. compact disc, a spring (9), a two arm lever (10) with a projecting arm (11). A coupling (18) connects the spring to the arm, a support point (19) being provided for the spring (9). A rib (22) is formed on the inside of the near wall. The radius of the recess (3) is larger than that of the disc (4). The lever (10), working with the spring (7), is fixed near the side edge (8) of the receptor (1) such that its free arm (11) co-operates alternatively with two projections (12, 13) mounted a short distance apart on the magazine wall (14). The disc (4) is held by the force of a spring (9) against one or more points (A, B) on the limiting wall (7). ADVANTAGE - Prevents vibration, e.g. in car installation, damaging surface of discs, esp. those held in magazine.
Patent DE-3924629-A1 (DE)
Title: Force measurement cell, pref. for weighing - has strain measurement elements on deformation ring protected by cover plate and connected in full bridge circuit
Inventor: GIESECKE PETER PROF DR
IPC: G01G3/14
Filed: 1989-07-26
Abstract: A force measurement cell has a force deformation ring concentric to the cell axis connected to inner and outer force application bodies. The ring carries electromechanical strain measurement elements connected in a bridge circuit on its top and bottom. At least the strain measurement elements (13) on the top (11) of the ring (1) are covered by a circular cover plate (15) tightly connected to the ring on both sides of the elements. USE/ADVANTAGE - Pref. for use as a weighing cell. All strain measurement elements are protected against external influences whilst maintianing the full bridge circuit configuration.