baber/WOPTO huggingface dataset:
Patent DE-3305108-A1 (DE)
Title: Improvement for a keyboard instrument, in particular a piano
Inventor: JOHANSSON ERLAND
IPC: G10C3/12
Filed: 1983-02-15
Abstract: An improvement for keyboard instruments, such as e.g. pianos, which have a conventional keyboard arrangement with a number of adjacent white and black keys (1, 2) and also have a keyboard beam (5) which is arranged almost directly behind the black keys (2) and extends partially above the white keys (1), the surface of the key beam (5) which faces the keys following in the cross-section of the beam a curved line (6) which begins (7) slightly above the white keys (1) at a small distance from the rear surface of the black keys (2) and extends in a flat manner or bent slightly upwards in relation to the plane of the white keys (1) and then becomes a curve which extends to or behind a line which lies at right angles to the plane of the white keys (1) and ends at the upper surface of the beam (5). <IMAGE>
Patent DE-3306619-A1 (DE)
Title: Field alarm system
Inventor: GENGENBACH WERNER
IPC: G08B13/196
Filed: 1983-02-25
Abstract: The invention relates to a field alarm system having a triggering direction by means of a protection element. The alarm system is improved by means of the invention such that it is suitable for field use, for example in a field or in a wood. To this end, a control circuit having a radio transmitter is allocated to the protection element in such a manner that, once the protection element has been triggered, the radio alarm device, which is at a great distance, is switched on via the radio transmitter. The system can thus also be made independent of the mains network in that a solar generator is protected against load and damage by means of an angled frame consisting of nondestructible material, and a transparent, stable cover consisting of material which can be loaded, and is protected against theft and destruction via the control circuit by means of an interference loop.
Patent DE-3308300-A1 (DE)
Title: Highly-flexible miniature coaxial line
Inventor: KOESTER HEINZ-DIETER
IPC: H01B11/18
Filed: 1983-03-09
Abstract: A highly-flexible miniature coaxial line, preferably for connection to test sets, having extremely low capacitance fluctuation when the line is moved. The aim of the invention is to prevent movement artefacts and to provide a highly-flexible miniature coaxial line having good serviceability characteristics. The invention is based on the object of creating a coaxial line which is highly flexible, proof against fracture and of a small diameter, and which has extremely low capacitance fluctuations between the inner conductor and the screen during movement. This is achieved in that a closely fitting elastic and electrically conductive layer is extruded directly onto the outer conductor, the modulus of elasticity of which layer is less by the factor 0.2 than that of the dielectric which is arranged around the inner braided conductor, and in that an external, insulating outer sleeve is extruded onto the layer. The layer has a specific internal insulation resistance of  rho D </= 50  OMEGA  x cm. The field of application is general metrology and medical metrology.
Patent DE-3311333-A1 (DE)
Title: Small cassette dictating device which can be held in one hand and easily operated
Inventor: HOLLWECK THEODOR
IPC: G11B15/10
Filed: 1983-03-29
Abstract: A small dictating device which can be held in one hand and easily operated is described, in which all the controllable gear wheels required for the various device functions are mounted together on a swivelling part, and the swivelling part is in operative connection with a control lever via a control cam. The control lever is controllable directly from an operating mode switch in the form of a slide switch. The controllable device functions are restricted to the operating positions start, stop, reverse and forward running.
Patent DE-3313866-A1 (DE)
Inventor: KARR DIETER
IPC: G01S13/931
Filed: 1983-04-16
Abstract: Device for detecting other vehicles in the rear vision field of a vehicle with at least one rearview mirror (14, 15), a contactless distance measuring device (18) with a range of action limited to a few meters being further provided. The measuring beam thereof is laterally directed towards the overtaking lane so as to have an effective action in the dead rearview field of the rearview mirror or mirrors. If one vehicle is thus detected by the beam, an optical and/or acoustic control device (23), preferably a light diode in the rearview mirror (24) is switched on inside the vehicle.
Patent DE-3313938-A1 (DE)
Title: Cooling bodies, in particular made of shaped ice, for drinks
Inventor: SIDOR HENRYK
IPC: A23G9/04
Filed: 1983-04-15
Abstract: The invention relates to cooling bodies of the abovementioned type, which, introduced into drinks and if necessary dissolving therein, bring about a temperature equalisation with the drinks. The aim is to achieve a more rapid temperature equalisation of the drinks. The object is, by novel design of the cooling bodies, to achieve this more rapid temperature equalisation with subsequently long-lasting, constant temperature equalisation of the dirnks. According to the invention, the cooling body mass is differently divided on the one hand into regions with mass concentrations and smaller wetting or melting surfaces, and on the other hand into regions with subdivided mass and larger wetting or melting surfaces. <IMAGE>
Patent DE-3319094-A1 (DE)
Title: Method and device for treating a plate-shaped article
Inventor: SCHMID DIETER C DIPL ING
IPC: C23F1/08
Filed: 1983-05-26
Abstract: In order, in a method and a device for treating a plate-shaped article with liquids forming volatile vapours in a working chamber, in which the article is transported into or out of the working chamber along a conveyor path through a passage chamber adjoining the working chamber directly, and in which vapours of the treatment liquid are removed from the passage chamber and supplied to a treatment-liquid circuit assigned to the working chamber, to prevent the escape of vapours into the environment, it is proposed that, on the passage of an article through an outer opening facing away from the passage chamber, an inner opening, which connects the passage chamber to the working chamber, closes in an essentially gas-tight manner, that the outer opening is closed in an essentially gas-tight manner before the inner opening is opened for the passage of an article, and that to a great extent all vapours are removed from the passage chamber before the outer opening is opened.
Patent DE-3323865-A1 (DE)
Title: High-voltage switching chamber
Inventor: SLAMECKA ERNST PROF DR TECHN
IPC: H01H33/70
Filed: 1983-06-29
Abstract: In an auto-compression switching chamber having double nozzles and a contact system which bridges said nozzles intermittently, for both the permanent current and the arc current, it is intended to eliminate an interaction between the nozzle separation and the nozzle diameter which occurs when using conductive material/conductive material nozzles at high rated voltages. At the same time, the particularly effectively quenching system of the stationary symmetrical double nozzles in an optimum configuration remains ensured. For this purpose, a conductive material/insulating material double-nozzle arrangement (2, 21 and 3, 31) is introduced as a novel feature. The problem of arc commutation into the internal space of the insulating material nozzle body as well is solved by means of arc running-in gaps (34, 35, 36) in this body. As a result of their nozzle contour, the arc running-in gaps also contribute to centring of the switching-off arc in the nozzle axis. The movable arc contacts are formed such that the switching-off arc is advantageously drawn in the region of the running-in gaps. The double-nozzle arrangement according to the invention is thermodynamically and dielectrically decoupled and can be optimally dimensioned in processes which are largely independent of one another. <IMAGE>
Patent DE-3326448-A1 (DE)
Title: Pressure transducer
Inventor: HALSTRUP ERWIN
IPC: G01L7/08
Filed: 1983-07-22
Abstract: A pressure transducer (1) (Fig. 1) has a chamber (4) provided with pressure connections (2, 3) and split in two by a diaphragm (5). The diaphragm is clamped with its diaphragm margin (10) between two enclosure parts (7 and 8) enclosing the chamber (4). The enclosure parts (7 and 8) are held together on the outside by clamping means (9). The diaphragm (5) is centrally connected to a displacement transducer (6). The clamping means (9) as well as the clamping point of the diaphragm (5), which clamping point forms an annular sealing zone, are arranged in such a way that the clamping forces starting from the opposite application points of the clamping means (9) arranged on the periphery lie in straight connecting or pressure lines which also preferably centrally intersect the sealing zone. The circular application surfaces of the clamping means as well as the annular sealing zone at the diaphragm margin (10) thus form concentric circles of the same diameter. Transverse force components originating from the clamping are thereby largely avoided so that, accordingly, elastic bending of the enclosure parts (7 and 8) by the clamping is also avoided. The temperature effect over the modulus of elasticity of the material of the enclosure parts is thereby kept small. In addition, the pressure transducer is easy to assemble and dismantle. <IMAGE>
Patent DE-3327760-A1 (DE)
Title: Method of correcting the feed of a milling cutter
Inventor: WETZEL FRIEDRICH
IPC: G05B19/416
Filed: 1983-08-01
Abstract: If the feed (vP) of a milling cutter (F) is related to its centre path, this feed has to be corrected when machining circular contours. To ensure that the feed at the point (P2) of contact between the milling cutter (F) and the workpiece (W2) corresponds to the feed intended for the cutting process, a desired feed (vS) to be aimed at is therefore obtained which fulfils the following condition: vS = vP . (1 + x . R/rP), where vS is the desired feed, vP is the feed programmed in accordance with the cutting process, R is the effective cutter radius and rP is the workpiece radius. The value x amounts to +1 or -1 if an external or internal contour is machined. <IMAGE>
Patent DE-3330043-A1 (DE)
Title: Charge amplifier circuit
Inventor: BOSCHANIG REINHARD
IPC: H03F3/70
Filed: 1983-08-19
Abstract: In order to avoid the drift of the output voltage caused by input leakage currents and consequently permit quasi-static measuring operation in spite of immunity to overvoltages, at the output of the charge amplifier there is provided a circuit arrangement having a d.c. voltage amplifier, an A/D converter, D/A converter and resistor, which circuit automatically compensates for the input leakage currents before measurement in an adjusting phase by a current Ic generated by it and keeps this current constant during the subsequent measuring phase. With the aid of a further operational amplifier of the same type, arranged in the charge amplifier, the input leakage current can be roughly precompensated with regard to temperature influences, whereby the A/D converter only has to carry out a fine compensation and can correspondingly have a lower resolution.
Patent DE-3332051-A1 (DE)
Title: Chain saw for stone and concrete
Inventor: MAYER JACHEN
IPC: B27B17/12
Filed: 1983-09-06
Abstract: The chain saw for stone and concrete is provided with chain links as supports for cutting plates and a guide for the chain. The consecutive chain links (21) overlap (29) laterally in order to deflect the sawing dust. The chain links are identical. They are composed of two symmetrical plates (23, 24). Fastened on each member (21) is a support (31), e.g. T-shaped in cross-section, for receiving a cutting plate (5). A rail (7), which serves as chain support ring, has a cavity (15). The rail is provided, on its length envisaged for the cut, with ducts (10) leading outwards to the chain for supply of pressurised water which cools the cutting plates (5). This saw is to be used mainly for rapid and problem-free cutting of thick slabs, for creating wall openings and in demolition work. It can saw the hardest rocks, such as granite and the like, in continuous operation. <IMAGE>
Patent DE-3332981-A1 (DE)
Inventor: ROECKELEIN SIEGFRIED DIPL ING
IPC: B28B7/18
Filed: 1983-09-13
Abstract: 1. A manufacturing device for the fabrication of relatively large, plate-like finished concrete parts, more particularly finished slabs in the shape of so-called hollow concrete slabs, which have a plurality of cylindrical and parallel cavities, with the following features : a) mould elements (5), more particularly tubes, which are arranged accordingly, are provided for moulding and can be mechanically displaced substantially horizontally along guides, between an inserted position (11), located in the mould space (10) which is to be filled with concrete and designed both for the finished part or for a plurality of finished parts, and a withdrawn position (12), which is taken up after concreting and is located outside the mould space (10), b) the mould space (10) is limited or subdivided by a pallet (8), which is arranged so that it can be pushed in or pulled out and which forms the approximately horizontal mould base (9), and by side walls (3), which are approximately parallel to the direction of displacement of the mould elements (5) and are arranged to the side of the mould elements (5) at the longitudinal edges of the pallet (8), and also by transverse walls (transverse stop means) (7) and in some cases longitudinal stop means, c) the side walls (3) each have an upper (15), a middle (17) and a lower (19) wall portion, in which the middle wall portion (17) projects relative to the lower portion (17) and the upper portion (15) into the interior (10') of the mould space, being characterised by the following features : d) the upper wall portion (15) is slightly inclined upwardly towards the mould space (10) and is guided for displacement approximately at right angles to the pallet (8), e) the middle wall portion (17) is formed by a wall element (6) which can be displaced together with the mould elements (5) between the moulding position (13) or the inserted position (11) and the mould release position (14) or the withdrawn position (12), f) the lower wall portion is formed by a side wall extension (19) of the pallet (8), on which the wall element (6) is guided.
Patent DE-3335856-A1 (DE)
Title: Exhaust turbocharger on supercharged combustion engine
Inventor: STREULI ADRIAN DIPL ING
IPC: F02B41/10
Filed: 1983-10-03
Abstract: In the case of a supercharged combustion engine (1), in addition to an exhaust turbocharger comprising compressor (2) and supercharger turbine (3) a further supercharger turbine (3') is provided, the latter being identical to or of a type smaller than the former. The supercharger turbine (3') is integrated with a transmission (8) connected on the input side of the combustion engine (1) and delivers mechanical power to the diesel engine (1). 
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Patent DE-3340525-A1 (DE)
Inventor: SCHOLZ JOACHIM DIPL ING
IPC: F16K11/16
Filed: 1983-11-09
Abstract: The object of the invention is a force-controlled pressure regulating valve, wherein large flow areas can be opened in valves in a simple manner and likewise can be closed, using small operating forces and short setting paths. A valve member 2 is axially adjustable in a housing which is in permanent connection with a pressure medium inlet opening 8 and is blocked against a pressure medium output opening 18. Valve member 2 is configured as a hollow cylinder. Its one edge surrounds an opening leading to the output opening 18, and its other edge cooperates with a valve seat coaxial with a venting opening 20, and surrounds a second valve seat in the cover of valve member 2. A setting member 3 cooperates with this valve seat, which transmits the setting force for the valve member. This setting force counters a check force.
Patent DE-3342497-A1 (DE)
Inventor: HARADA KUNIYOSHI
IPC: F16D49/02
Filed: 1983-11-24
Abstract: Spring coupler apparatus including a driving member and a driven member coaxially mounted in a case, the driving member including a substantially circular annular body having a pair of fan-shaped flanges extending diametrically therefrom with upstanding portions at the end of the flanges forming recesses therebetween, and the driven member also including a pair of diametrically opposed fan-shaped flanges with projections extending upwardly from the ends thereof into the recesses. A relatively larger diameter spring is wrapped around the upstanding portions and projections and is in frictional engagement of the outer wall of the case in the free state of the spring, one tang end of the spring being engaged in a slit in one of the projections, and a tang on the free end of the spring being engageable with one of the upstanding portions of the driving member. A relatively smaller diameter spring is wrapped around an inner wall of the casing between the inner wall and the inner surfaces of the upstanding portions and the projections, the smaller diameter spring being in frictional engagement with the inner wall in the free state of this spring. An outturned tang on one end of smaller diameter spring is engaged with a slit in the other of the upstanding portions of the driven member and an outturned tang on the free end of the smaller diameter spring is engageable with the other one of the projections.
Patent DE-3343238-A1 (DE)
Title: Workpiece-clamping holder for sewing machines
Inventor: JUENEMANN HUBERT
IPC: D05B39/00
Filed: 1983-11-30
Abstract: A workpiece-clamping holder (1) for sewing machines has a lower clamping plate (13) and an upper clamping plate (19) which is connected to the latter in an articulated manner and can be lifted off from the lower clamping plate (13) counter to the effect of a spring (25) and which carries on its underside, along the outer contour, at least one adhesion rail (27) consisting of elastic material. The workpiece-clamping holder (3) possesses, furthermore, a device, arranged between the two clamping plates (13, 19) and consisting of a pivotable wire grip (30), for spreading one fabric layer (18) relative to another fabric layer (17) during the closing of the two clamping plates (13, 19), a template defining the course of a seam and a device for holding a fabric layer on the lower clamping plate (13) when the clamping holder is opened. In order to prevent the fabric layers (17, 18) to be sewn together from warping during the closing of the clamping plates (13, 19), the device has an auxiliary clamp (37) which is assigned to the upper clamping plate (19) and which is elastically pivotable relative to the upper clamping plate (19) and which, during the closing of the clamping holder (3), is applied to the lower clamping plate (13) in front of the upper clamping plate (19) in a region where no seam is to be made. <IMAGE>
Patent DE-3400746-A1 (DE)
Title: Process for synthesising Aspartame
Inventor: CASTIGLIONE ROBERTO DE
IPC: C07K5/075
Filed: 1984-01-11
Abstract: A process is described for the preparation of N- alpha -L-aspartyl-L-phenylalanine methyl ester (Aspartame). According to the process, a completely protected L-aspartic acid derivative is reacted with L-phenylalanine methyl ester in the presence of a condensing agent, the condensing agent having been obtained by reacting a nitrogen-containing heterocyclic compound with an organic or inorganic acid chloride. The protective groups are then removed by catalytic transfer hydrogenation using ammonium formate, cyclohexane or cyclohexadiene as hydrogen donor, and the resulting Aspartame is eventually obtained and purified by methods known per se. The process according to the invention gives the  alpha  isomer of Aspartame in high yields and in high purity, and the formation of undesired  beta  isomers is avoided.
Patent DE-3407773-A1 (DE)
Title: Fair and exhibition system
Inventor: POOK MICHAEL DIPL ING
IPC: E04H1/12
Filed: 1984-03-02
Abstract: As a result of the infinite angular adjustability of its panels and/or frames and its ability to be combined with the floor structure, this fair and exhibition system provides simple assembly and dismantling and more flexibility in fair and exhibition construction.
Patent DE-3408984-A1 (DE)
Title: Rear-view mirror device
Inventor: SCHEFFEL BERND DIPL ING
IPC: B60R1/10
Filed: 1984-03-12
Abstract: Rear-view mirror arrangement for a motor vehicle having a transparent opening in the front roof area and a mirror 4 which extends transverse above the opening and is arranged in such a way that it reflects downwards through the opening an image of the surroundings located behind the motor vehicle, so that the said image can be perceived by the driver, the cover of the transparent opening being part of a known openable roof (sliding roof or tiltable roof) and the mirror 4 forming together with its moulding a wind spoiler which is known for such openable roofs. The mirror 4 can be inclined about an axis parallel to the transverse axis of the vehicle and locked and this adjustment can be performed from the driver's seat. The mirror 4 can be lowered into the roof together with its moulding, independently of the transparent roof cover, and extended. This rear- view mirror arrangement can be implemented on known sliding roofs and tiltable roofs without substantial additional outlay and is available as a safety device in addition to existing interior mirrors and side mirrors. When required, such as for example in the case of three-lane traffic in one direction of travel, the rear-view mirror can be activated by extending the wind spoiler. <IMAGE>
Patent DE-3425331-A1 (DE)
Title: Method for fitting or removing an erosion protection edge which is bonded onto a missile component
Inventor: STRAUBE AXEL DIPL ING
IPC: B64F5/00
Filed: 1984-07-10
Abstract: A method for fitting or removing an erosion protection edge which is bonded onto a missile component, preferably a wing or the like, heating mats of an electrical de-icing system being arranged on the missile component at predetermined distances from the erosion protection edge. Electrical energy is supplied to the heating mats to heat them to predetermined temperature values which are above the temperature values required for a de-icing process and below the temperature values which cause damage to the heating mats and/or to their attachments on the missile component. The predetermined temperature values are maintained until the adhesive between the erosion protection edge and the missile component or the heating mats has cured for a fitment process or, for a removal process, has become soft in such a manner that the erosion protection edge can be peeled off the missile component or heating mat. In order to achieve faster heating up, the heating mats can be supplied with the electrical heating power in two stages in such a manner that the heating mats are initially heated at an increased power for a limited period of time and a power reduction is subsequently carried out in order to maintain the predetermined temperature values.
Patent DE-3432112-A1 (DE)
Inventor: LOEBEL KLAUS-DIETER DR
IPC: A61K47/00
Filed: 1984-08-29
Abstract: An aqueous injection solution contains 1-25% by weight of 2-hydroxy-N,N,N-trimethyl-ethanaminium salt of 3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione (1:1) and, based on this salt, 5-8% by weight of propionic acid.