baber/WOPTO huggingface dataset:
Patent DE-3737478-A1 (DE)
Title: Information and lecture magazine
Inventor: DOUGLAS JUERGEN
IPC: B42F13/40
Filed: 1987-11-05
Abstract: According to the state of the art, information and lecture magazines exist in many different forms. However, it has been a disadvantage in the case of such magazines or books that those which are suitable for overhead projectors, which make it possible to address a multiplicity of people, cannot easily be handled for one-to-one conversation or for a smaller group of people. Here, the invention supplies a remedy by creating a magazine having three lids which are interconnected by a first and second hinge part, a holder, which has ring elements, being provided around the second hinge part for a multiplicity of films and the like. A further feature is a stop which is arranged at a small distance from the edge facing away from the first hinge. This stop is advantageously a metal rail which runs parallel to the edge. Due to this construction, on the one hand, it is possible to pivot the films into and out of the projection position and, on the other hand, the information and lecture magazine according to the invention can be set up in such a manner that it assumes a roof-like structure in which the films can be pivoted about the peak or the gable (ridge), as a result of which it is possible for people sitting opposite each other simultaneously to view that side of the film which is facing them. <IMAGE>
Patent DE-3738851-A1 (DE)
Title: DPCM encoder with estimated-value forming circuit
Inventor: GRUND RAINER DIPL ING
IPC: H04N11/04
Filed: 1987-11-16
Abstract: In the transmission of DPCM-coded composite PAL colour signals, the sampling frequency is generally an integral n-fold value of the PAL colour subcarrier frequency. It is known to use the samples of the pulse period of the PAL colour subcarrier frequency in each case as estimated values for the DPCM coding. If, however, composite NTSC colour signals are transmitted in a transmission system intended for composite PAl signals, the samples of the past period of the PAL colour subcarrier frequency provide unsatisfactory estimated values for the composite NTSC colour signal. Better estimated values are obtained by means of an estimated-value forming circuit in which the starting value of the estimated-value forming circuit is delayed by n+1 periods of the sampling frequency compared with the starting value of the DPCM encoder or DPCM decoder.
Patent DE-3802018-A1 (DE)
Title: Working device operated by compressed gas
Inventor: VIELBERTH JOHANN DR
IPC: B25B21/00
Filed: 1988-01-25
Abstract: The invention relates to a working device operated by compressed gas, having a chuck for a tool, a cartridge magazine for at least one cartridge containing solid fuel and also a device for converting the explosive energy of the cartridge into kinetic energy of the tool. The chuck, which receives drill, pipe spanner, screwdriver and the like, is rotatably mounted, and by means of the device cooperating with the chuck the explosive energy can be converted into rotary energy of the chuck.
Patent DE-3803131-A1 (DE)
Title: Shoe-holding device
IPC: A43D3/14
Filed: 1988-02-03
Abstract: The invention relates to a device for holding and stretching footwear with a clamping block, on which a part bearing the last, a clamping lever mechanism, and, via the clamping lever mechanism, a heel part, which is movable in relation to the last part, are mounted,   a) the last (1) being fastened rigidly at one end of a double lever (2) which is mounted pivotably about an axis (5) on the clamping block (6), b) a rail (10) being articulated at the other end of the double lever (2), which rail is guided with its other end section in a slide guide (12, 13) in the clamping block (6), c) the heel part (3) designed as a double lever being mounted on the last part (2) pivotably about an axis (4), d) a steering lever (7) being articulated at one of its ends on the clamping block (6) and its other end on the heel part (3), the axis (8) of articulation of the steering lever (7) lying on the heel part (3) between the axes (4) and (5), e) an automatic pawl locking-mechanism for changing directions being provided in the clamping block (6), with a shiftable pawl (16) which is mounted pivotably about an axis (15) in the clamping block (6) and which can be engaged in a toothing (14) on the rail (10), and all axes (4, 5, 7, 9, 11, 15) being parallel according to Patent 3730850. Characteristic of the invention is that the front part (1a) of the last (1) which is adapted to the shoe shape is fastened detachably by means of an insertion connection (16) in the manner of a tongue and groove connection. <IMAGE>
Patent DE-3805049-A1 (DE)
Title: Shearer loader equipped with two winches
Inventor: KNORR VOLKER
IPC: E21C29/10
Filed: 1988-02-18
Abstract: In shearer loaders of this generic category, both winches as a rule are each equipped with a separate drive motor. If one of these two drive motors fails, the shearer loader must be able to continue the winning operation, even if in a restricted form, or else return into its initial position. To this end, an additional gear unit (15), for example a reduction gear unit, bridging the failed drive motor (7) is provided. Via the additional gear unit (15), the drive gear (9) of the winch (6) or (6a) of the bridged drive motor (7) can be connected to the operative drive motor (7) of the other winch (6a) or (6). Such a gear unit (15) enables the drive power of a motor (7) driving on its own to be distributed over both drive gears (9) of the shearer loader (1). An emergency operation can also be maintained if the bridging gear unit (15) is designed as a reduction gear unit, and the requisite feed force of the winch (6) or (6a) driving on its own can be produced by means of the operative motor (7) at a correspondingly reduced travel speed. <IMAGE>
Patent DE-3808038-A1 (DE)
Title: Method for the automatic matching of a speech recognition system
Inventor: KUNZ GERD-STEFAN DIPL ING
IPC: G10L15/00
Filed: 1988-03-10
Abstract: In the application of speech recognition in the car telephone to simplify the dialling procedure, travel noise acts negatively on the detection of word boundaries and the speech analysis and thus also on the reliability of recognition. To eliminate such disturbances in speech recognition, the invention provides that in a speech recognition system having filter bank analysis, a noise signal component of constant level occurring as a result of the noise environment is suppressed from the filter bank output signal consisting of useful signal and noise signal components, by means of differentiation and subsequent integration, in a module for noise suppression connected downstream of the filter bank. <IMAGE>
Patent DE-3811347-A1 (DE)
Title: Cathode ray tube
Inventor: COMBERG ALBERT DR
IPC: H01J29/28
Filed: 1988-04-02
Abstract: In a cathode ray tube having a luminescent screen (fluorescent screen) which has a layer (P) of luminescent material which is scanned by at least one electron beam (E), for the purpose of protection when the electron beam is no longer deflected the luminescent screen is provided with a layer (S) which is of low resistance in the case of temperatures which do not lead to a destruction of the layer of luminescent material and in the case of higher temperatures is of very high resistance or insulating. <IMAGE>
Patent DE-3811699-A1 (DE)
Title: Ground-installed heat exchanger/cellar wall collector
IPC: E02D31/02
Filed: 1988-04-05
Abstract: The invention described relates to a device by means of which ground heat can be obtained for heating buildings without additional costs for earthworks. The conventional single-family house, in which the invention is chiefly to be used, has on average containing (external) walls of approximately 50 running m. Given an average depth of 2 m, a heat exchanging surface of approximately 100 m<2> is available. The invention achieves this object due to the fact that owing to its insulating effect the element protects the building against cooling down, and at the same time leads incident condensate into the drainage system. In addition, it produces effective moisture (damp) proofing of the cellar (basement) masonry. Moreover, it provides an excellent protection of the sealing against mechanical damage. The invention represents a substantial advance from the economic point of view, as well, owing to its multifunctional properties.
Patent DE-3812103-A1 (DE)
Title: Means for protecting against pigeons and birds on buildings
Inventor: JUNG CHRISTIAN
IPC: A01M29/32
Filed: 1988-04-12
Abstract: By virtue of the present means of protection, it is not possible for any pigeon or birds of any type to hold on, only wall projections have to be secured. This means of protection cannot be seen from beneath.
Patent DE-3814695-A1 (DE)
Title: Cup packing with an inserted metallic support ring
Inventor: WINTER KLAUS
IPC: F16D65/18
Filed: 1988-04-30
Abstract: The invention relates to a cup packing composed of rubber-like material, particularly for sealing off the actuating piston of disc brakes. Packings of this kind should, on the one hand, sit quite tight in order to ensure a good sealing effect and a secure fit. On the other hand, there is a concern to keep as far as possible to the required tolerances. With the known packings, a tight fit was achieved by means of an embedded metal ring but this required considerable forces during installation and precise tolerances in the production of the sealing seat. The invention concerns itself with the object of proposing a cup packing which, although it has the required stiffness at its fixing points, also has sufficient elasticity to avoid the disadvantages mentioned. The invention consists, in principle, in that the annular steel insert is made intrinsically elastic. This can be accomplished by the use of a coil, a spiral spring or a ring corrugated in the circumferential direction. <IMAGE>
Patent DE-3820877-A1 (DE)
Title: Device for the remote actuation of locks and of similar locking means
Inventor: OTZEN UWE DR ING
IPC: E05B47/00
Filed: 1988-06-21
Abstract: For the remote actuation of locks and similar locking means, a device having a regulating element consisting of a memory alloy is provided. The regulating element engages on an actuating member of the lock. The regulating element can be heated electrically, preferably by means of its own ohmic resistance by direct current supply. During the electrical heating, the regulating element changes its shape as a result of the memory effect and at the same time actuates the actuating member of the lock. The device can be fitted to a conventional lock, without the construction of the latter having to be changed.
Patent DE-3822861-A1 (DE)
Title: Three-dimensional load-bearing structure, in particular cable shaft, by a slab construction method
Inventor: DEHLING HELMUT
IPC: E04B1/06
Filed: 1988-07-06
Abstract: The invention relates to a three-dimensional load-bearing structure, by a slab construction method, which comprises prefabricated reinforced-concrete compound units which are braced together by means of bracing anchor arrangements, forming expansion joints in doing so. The bracing anchor arrangements exhibit anchor plates and anchor bars in the region of the abutting ends of the prefabricated reinforced-concrete compound units configured as slab elements. Said prefabricated reinforced-concrete compound units only have a single-layer reinforcement in the region of the centre of the slab. The single-layer reinforcement engages in between anchor bars which are arranged in each case close to the inner side of the slab and remote from the inner side of the slab. Consequently, torques are satisfactorily absorbed, the two-layer reinforcement being dispensed with. This results in savings in material and labour costs. <IMAGE>
Patent DE-3823886-A1 (DE)
Title: Process for the preparation of N-acylphosphinothricin P esters
Inventor: JAEGERS ERHARD DIPL CHEM DR
IPC: C07F9/32
Filed: 1988-07-14
Abstract: For the preparation of N-acylphosphinothricin P esters, a methyl (3-oxopropyl)phosphinate is reacted in a dipolar aprotic solvent with a carboxamide and carbon monoxide in the presence of hydrogen gas using a cobalt compound as a catalyst.
Patent DE-3828608-A1 (DE)
Title: Vacuum-pump device
Inventor: BUERGER HEINZ DIETER
IPC: F04C23/00
Filed: 1988-08-23
Abstract: The invention relates to a vacuum-pump device having a molecular vacuum pump (3) and at least one Roots pump (1) arranged upstream of the vacuum pump. According to the invention, the Roots pump (1) is equipped with means (10) for controlling the rotational speed, which means are adjusted by a signal dependent upon the pressure on the suction side of the molecular vacuum pump (3). With such a device, by a simple change in the rotational speed of the Roots pump the suction capacity of the device can be changed. The invention is usable, for example, in plasma processes which are to proceed at a pressure of between 10<-3> and 1 mbar. <IMAGE>
Patent DE-3832151-A1 (DE)
Title: Fishing rod
Inventor: KIRNER STEFAN
IPC: A01K97/12
Filed: 1988-09-22
Abstract: A fishing rod having a fishing line held with play in line-retaining rings or similar guides is improved in that a signal body (20) is slideably arranged on a portion of the fishing line (12), between two of the line-retaining rings (10). <IMAGE>
Patent DE-3833761-A1 (DE)
Inventor: VOLK PETER G DR ING
IPC: B60T1/08
Filed: 1988-10-05
Abstract: The invention relates to an additional brake device for vehicles, in particular load vehicles, with a hydrodynamic brake (a retarder). In order to improve the braking effect of a retarder (R) of this kind in combination with low mechanical stress, the invention proposes that the retarder (R) have two rotors (P1, P2) in its housing (G), which rotors can be driven in opposite directions by adjacent vehicle axles (A1, A2). <IMAGE>
Patent DE-3835226-A1 (DE)
Title: Control device for hydraulic power lifts
Inventor: LOEDIGE HEINRICH DIPL ING
IPC: A01B63/112
Filed: 1988-10-15
Abstract: A control device for hydraulic power lifts has a valve arrangement with a first connection (P) for a hydraulic pressure source, a second connection (A) for the power lift and a third connection (T) for a hydraulic return line, as well as a valve arrangement consisting of a non-return valve (11), a passage valve (12) and a discharge valve (13). The passage and discharge valves (12, 13) are pressure-controlled by means of pilot-control valves (14, 15) and alternatively clear the connection between the first connection (P) or the second connection (A) and the third connection (T). To obtain a simple valve construction with good enough regulating accuracy of the control device, all valves (11-15) are accommodated in a valve body (10) which contains main bores (16-21), control bores (22-24) and connecting bores (30, 31, 33, 34, 36, 37) connecting these bores to one another. The valve members of the pressure-controlled valves (11-13) each consist of a ball (26), interacting with a ball seat (25) in a main bore (16-21), of a ball bearing and a rolling body (27) of a rolling bearing which is guided in an axially displaceable manner in the allocated control bore (22-24) (Fig. 1). <IMAGE>
Patent DE-3838396-A1 (DE)
Title: Method for locating vessels and for forecasting haemorrhages (bleeding)
IPC: G01S7/481
Filed: 1988-11-12
Abstract: The invention describes a method for endoscopically locating vessels and for forecasting vascular haemorrhaging. A Doppler laser sensor connected to the endoscope is used to measure and assess the pulsations of blood flow and vessel wall, as well as their mechanical strength inside and outside the lesion. The investigator is thereby supported by a computer, image processing and a database which are organised in the form of a knowledge-based expert system.
Patent DE-3901792-A1 (DE)
Title: Toroidal (ring) core made of ferrite or iron powder
Inventor: KRAHL BURGHARD DIPL ING
IPC: H01F37/00
Filed: 1989-01-21
Abstract: Toroidal cores made of ferrite or iron powder are used in switched-mode power supply devices because of their small volume and high efficiency. In the case of a storage coil or a transformer, it is, in this case, intended to make the behaviour of the inductor changeable, as a function of the magnetisation current, by simple means. It is proposed that the toroidal core, made of ferrite or iron powder, have an insert made of permanently magnetic material. Power supply devices.
Patent DE-3902919-A1 (DE)
Title: Pack-wrapping machine for stretch foils
Inventor: LEROY HEINZ
IPC: B65B11/04
Filed: 1989-02-01
Abstract: This pack-wrapping machine for stretch foils is a fully automatic machine for wrapping packs consisting of one or more units, for example boxes of washing agent, litre packs, packs of six bottles or cans, plates stacked one above the other, etc., which have hitherto been packaged by means of shrink foil. The general advantage of stretch-foil wrapping is the low foil consumption and the ease with which the packs can be broken open by hand. The particular advantage of this automatic machine is its capacity for universal use and easy conversion to different packs.
Patent DE-3904454-A1 (DE)
Title: Compensation device for front live centres
Inventor: POHLE ROBERTO
IPC: B23B33/00
Filed: 1989-02-15
Abstract: The invention relates to a compensation device for front live centres, the surfaces of the head of the basic body 1 and the hollow of the live centre 2 being hemispherical. When the two parts are coupled, the respective surfaces, due to the sliding, permit the compensating movement or oscillation of the live centre 2 relative to the basic body 1. <IMAGE>
Patent DE-3908629-A1 (DE)
Title: Method for producing hardened tracks on workpieces by means of an electron beam
Inventor: PANZER SIEGFRIED DIPL PHYS DR
IPC: C21D1/09
Filed: 1989-03-16
Abstract: The method for producing hardened tracks on workpieces by means of an electron beam is used to harden limited surfaces on components, in particular slideways of roller slideway (antifriction guideway) elements. According to the invention, the electron beam, which is programmed by radio frequency to be deflected periodically, is caused to act over the entire field of action of the beam in subfields which are restricted parallel to the hardened track, this being done in such a way that the energy transfer periods in the subfields differ.
Patent DE-3909657-A1 (DE)
Inventor: RATH DIETER
IPC: F04B43/00
Filed: 1989-03-23
Abstract: The pump tube (10) for a peristaltic pump consists in the non-deformed state of two arcuate sections (11, 12) which merge into one another along joint lines (14), so that the tube bore (20) has the cross-sectional shape of a convex lens. Adjacent to the joints (13) of the arcuate sections (11, 12) are outwardly pointing webs (15). When the tube (10) is pressed together, only moderate pinching occurs at the joints (13). The tube has a substantially improved pinching and restoring behaviour. The webs (15) prevent overpinching. 
<IMAGE>
Patent DE-3921570-A1 (DE)
Title: Adjusting unit for impeller blades of water turbine esp. Kaplan turbine - uses control rod inserted coaxially in turbine shaft for driving generator
Inventor: WUEST MICHAEL DIPL ING
IPC: F03B3/14
Filed: 1989-06-30
Abstract: The linear movement between the control rod (15) and the turbine shaft 813) effects a turning of the tubine  wheel blading (12).  The control rod (15) is coupled at its free end with an electric motor (17), for carrying out the linear shift in the turbine shaft (13), so that the end of the control rod (15) projecting over the free end of the turbine shaft is connected, transmitting the torque with the rotor (17.1) of the electric motor (17). The rotor (17.1) is located in the stator (17.2) of the electric motor to allow linear movement and the stator (17.2) is fixed locally.  The electric motor is assigned a frequency control, so that the control rod (15) can be driven at varying speeds relative to the turbine shaft (13). USE/ADVANTAGE - Adjusting unit for water turbine wheel blading. Gives pure mechanical adjusting unit for impellor.
Patent DE-3926691-A1 (DE)
Inventor: DORSCH DIETER DR
IPC: G02F1/355
Filed: 1989-08-12
Abstract: Polyamide acids and their reactive derivatives with chemically bound non-linear optically active chromophores which can be converted to polyimides by cyclization, characterized in that the non-linear optically active chromophores have a positive value for the quadratic hyperpolarizability ( beta ) and the polyimides obtained from these compounds are outstandingly suitable for the manufacture of non-linear optical arrangements for use in optical components.
Patent DE-3929185-A1 (DE)
Title: Polarity reversal protection system for battery - uses electronic component or integrated circuit providing reverse voltage protection for each individual battery cell
Inventor: WUENSCHE CLAUS DR
IPC: H02H7/18
Filed: 1989-09-02
Abstract: The protection system uses an electronic component or electronic circuit across each of the NiCd battery cells. This limits the reverse voltage across the cell to a sufficiently low value to prevent damage, or which totally blocks the reverse voltage. Pref. a silicon semiconductor element or a monolithic IC is connected across each battery cell. The silicon semiconductor element may comprise an FET switch (4) controlled by an electronic control circuit (3) in dependence on the cell voltage, to switch in a parallel circuit path containing a Schottky diode (5). ADVANTAGE - Prevents battery damage to prolong working life. (5pp Dwg.No.3/3) (Printed in week 9017)
Patent DE-3941459-A1 (DE)
Inventor: THUL BERND
IPC: E01B25/24
Filed: 1989-12-15
Abstract: A shaped hollow rail for use in the textile industry with tracks for pairs of rollers (2) can be made self-cleaning if the tracks (8, 9) bearing the rollers (10, 11) of each pair are arranged on either side of a longitudinal slot (7) and if the tracks (8, 9) and the axles (14, 15) of the rollers (10, 11) allocated to each track are inclined towards the longitudinal slot so as to rub off any dirt settling on the track.
Patent DE-3943387-A1 (DE)
Title: Controllable diffraction grating - has grating body, support, coupling layer, two silver electrodes, profile, photoresist and optical limiter
Inventor: FENSKE GUENTER DIPL PHYS DR
IPC: G02F1/29
Filed: 1989-12-27
Abstract: A controllable diffraction grating where the grating base, which usually consists of one part, in this case is split into a grating body (1) and a grating support (2). The statically stable, piezo-electric inactive grating body (1) of thickness (hu) serves as a base and absorbs the mechanical loads.  The grating body (1) and the grating support (2) are connected by a coupling layer (3) of synthetic rubber of thickness (he). The piezo-electrically active grating support (2) is shaped as a thin plate with silver electrodes (7,8) fixed to its surfaces by half-layers (5,6) of chromium. The grating profiles (4), in which the distance between the rulings are controlled by the diffraction grating, are deposited on the electrode (8) on the main surface of the grating support.  The optically active grating profile (4) is produced in a photoresist layer (9) above the electrode (8) and is covered with an optical limiting layer (10). USE/ADVANTAGE - Distance between rulings can be changed for inertial-less fine tuning of the wavelength of the diffracted radiation and can be used in broadband, tunable lasers.
Patent DE-4000795-A1 (DE)
IPC: B01D53/34
Filed: 1990-01-12
Abstract: A process for the purification of exhaust gases is described, the filter zone through which the exhaust gases flow containing at least one adsorption step, in which is provided a suitable adsorbent for retaining NHx compounds, heavy metals and/or trace pollutants, at least part of which adsorbent being removed from the adsorption step at defined time intervals or at a defined load and being introduced into the final combustion zone and/or preheating zone. By means of a process of this type, the NOx content of the exhaust gases is substantially reduced and at the same time heavy metals and trace pollutants are removed from the exhaust gases.