baber/WOPTO huggingface dataset:
Patent DE-3142220-A1 (DE)
Title: Rectified optical system for polarisation microscopes
Inventor: WEBER KLAUS DR
IPC: G02B21/00
Filed: 1981-10-24
Abstract: The proposed rectified optical system for polarisation microscopes has an optical system for intermediate imaging of the field diaphragm with a high aperture. At the site of this intermediate imaging, i.e. in the strongly convergent beam path, it is possible to insert plane plates which in conjunction with a  lambda /2 plate arranged in the condenser pupil compensate the azimuth-dependent rotation of the polarisation plane from extra-axial beams to the lens faces of the optical system. Commercially available objectives and condensers can be used, and depending on the objective or condenser used more or fewer plane plates are inserted into the beam path for the purpose of compensation. The plane plates are coated in such a way that no phase differences occur between parallel and perpendicular component beams, that is to say no contrast-diminishing eliptical depolarisation occurs.
Patent DE-3144439-A1 (DE)
Title: Handbag light
Inventor: DIRKSKOETTER WILLY
IPC: A45C15/06
Filed: 1981-11-09
Abstract: According to the invention a handbag light is fitted with a V-shaped spring (15), whose one limb (16) is pressed into the release position by the folded side parts (1) of the bag when the bag is closed and interrupts the current circuit of the bag light. This V-shaped spring takes up so little space that sufficient free space remains in the housing of the light to accommodate a plug-in accumulator (19) and, at the same time, torch batteries (20, 22) which can be switched on selectively. Space also remains for the installation of spring-mounted pins (9 to 12) which fasten the housing of the bag light non-displaceably in the bag. <IMAGE>
Patent DE-3202663-A1 (DE)
Title: Process for the preparation of the ammonium salt of acrylic acid and of methacrylic acid
Inventor: BESECKE SIEGMUND DIPL CHEM DR
IPC: C07C51/41
Filed: 1982-01-28
Abstract: The invention relates to a process for the preparation of the ammonium salt of acrylic acid or methacrylic acid by reaction of the acid in aqueous medium with at least stoichiometric amounts of ammonia, an aqueous saturated solution of the ammonium salt of acrylic acid or of methacrylic acid being used as the reaction medium and gaseous ammonia being added and room temperature not being substantially exceeded during the reaction and the subsequent working up.
Patent DE-3209513-A1 (DE)
Title: Exzentrische parabolantenne mit geringer kreuzpolarisation
Inventor: KUEHNE HANS-DIETRICH ING GRAD
IPC: H01Q19/19
Filed: 1982-03-16
Abstract: Die vorliegende Erfindung betrifft eine Mikrowellenantenne mit einer exzentrischen Parabolkalotte als Hauptreflektor, deren Kreuzpolarisationskomponente vermindert werden soll. Zu diesem Zweck ist ein Speisesystem vorgesehen, das die Strahlung einer Huygensschen Quelle erzeugt. Dabei ist das Speisesystem so dimensioniert und derart auf die Parabolkalotte ausgerichtet, daß das Strahlungsfeld nach der Reflexion an der Kalotte in ein ebenes Feld umgewandelt wird.
Patent DE-3214738-A1 (DE)
Title: Mobile demonstration board
Inventor: NEULAND ERICH
IPC: G09F15/00
Filed: 1982-04-21
Abstract: The invention is based on a mobile demonstration board which consists of two board sections encompassed by a U-shaped sectional frame and connected to each other in an articulated manner by means of hinges, and two legs (7). An essential feature is that the legs (7) each have a rail (12) which engages from the side over the lateral sectional frame (3). This rail (12) is attached to the sectional frame (3) in a vertically adjustable manner. Furthermore, the feet (9, 10) are attached to the rail (12) to be pivotable about a perpendicular axis (25). This design makes it possible, in order to transport the board, to push the rails (2) upwards on the sectional frame (3) until the feet (9, 10) are situated immediately below the lower region of the sectional frame (3) and can then be pivoted into the plane of the board, so that they are not bulky. <IMAGE>
Patent DE-3215792-A1 (DE)
Title: Device for undercutting the connecting webs in the area of a cut surface of split-tile mouldings
Inventor: KECK DIETER
IPC: B28B17/00
Filed: 1982-04-28
Abstract: A device for undercutting the connecting webs in the area of a cut surface of split-tile mouldings which are produced by cutting off from a clay billet disposed on the narrow side is characterised by a cutting die which extends over the height of the split-tile mouldings and to which two push-in blades running parallel to one another are fastened. The push-in blades are arranged at a distance from one another corresponding to the width of the connecting webs, the cutting die and the push-in blades being designed to be movable transversely to the cut surface. The cutting die is fastened to a lever which is pivotably mounted in an axis. To improve the undercutting, the push-in blades are of conical design. Since the length of the split-tile mouldings can vary as a result of different split-tile formats, the device can be displaced in the longitudinal direction of the clay billet in accordance with the length of the split-tile mouldings to be cut off.
Patent DE-3220913-A1 (DE)
Title: Hydraulic control arrangement with at least two directional control valves for controlling servomotors
Inventor: OLBRICH GOTTFRIED
IPC: F15B11/16
Filed: 1982-06-03
Abstract: A hydraulic control arrangement with at least two directional control valves (11, 12) and a flow regulator (17) for controlling, as independently of one another as possible, at least two pressure-medium flows to the servomotors of a stacker truck is proposed, the first directional control valve (11) allocated to the total or residual flow being of short construction. The first directional control valve (11), connected to a residual flow passage (35) from the flow regulator (17) and to an inflow passage (25), lies in a neutral circulation passage (32) downstream of a second directional control valve (12) which is allocated to the constant flow of the flow regulator (17). The outflow side of a second pressure relief valve (52) is connected to the neutral circulation passage (32) between both directional control valves (11, 12) so that the secondary pressure protection, set for a low pressure, only acts during sole actuation of the second directional control valve (12). Although a residual flow passage, passing through the constant-flow directional control valve (12), and troublesome surges in the control sequence during parallel actuation of both directional control valves (11, 12) with interruption of the constant flow take-off are dispensed with, the first directional control valve (11) with seven controlled connections permits a short type of construction. <IMAGE>
Patent DE-3223568-A1 (DE)
Title: Stain-removing composition and method for removing stains
Inventor: PENZ JUN PETER
IPC: C11D3/386
Filed: 1982-06-24
Abstract: The invention relates to an aqueous stain-removing composition which contains 0.5 to 5.0% by weight of ammonia, 0.1 to 5.0 g/l enzymes and 1 to 10 g/l detergent. The stain-removing composition has a wide range of uses concerning the nature of the stains which can be removed and the types of textiles which can be treated. It is convenient to handle, can be produced at reasonable cost and reduces the operating costs in dry cleaning establishments.
Patent DE-3224952-A1 (DE)
Title: Circular cold saw
Inventor: EFFENBERGER WOLFGANG DR ING
IPC: B23D59/02
Filed: 1982-07-03
Abstract: A circular cold saw with a saw blade fed from the bottom upwards, in addition to a cooling and lubricating device directed from above onto the saw blade, has a lateral feed for a supporting medium which is sprayed from below into the cutting area so that a premature discharge of the coolant from the cutting area is effectively prevented. Despite its saw blade acting from the bottom upwards, the circular cold saw can thereby work with high output, the saw blade, on account of the continuous cooling and lubricating in the cutting area, being able to achieve a durability corresponding to that of circular cold saws with saw blades moving from the top downwards.
Patent DE-3228377-A1 (DE)
Title: Device for closing, locking and renewed opening of the breech of a handgun, especially of a drop-barrel weapon for hunting purpose
Inventor: RIEGER BENEDIKT
IPC: F41A19/54
Filed: 1982-07-29
Abstract: In the case of a device for closing, locking and renewed opening of the breech of a handgun, especially of a drop-barrel weapon for hunting purposes, having a barrel (1) which can be dropped by means of a barrel hook (2) about a hinge bolt (4) arranged in the breech element (3) and has at least one second barrel hook (5) which has a locking catch (6) for the engagement of a spring-loaded bolt (7), which is displaceably guided on the breech element (3) and is hand operated, having a lateral web (10) which is arranged integrally in the breech element (3), having an opening (12), which is arranged between said lateral web (10) and the base (11) of the breech element (3), for the second barrel hook (5) to latch into, and having a trigger device with a tongue (13), a trigger spring (16), a firing element (18) and a trigger (33), the mutually facing surfaces (9, 25) of the second barrel hook (5) on the one hand and of the lateral web (10) on the other hand are inclined in the same direction and rest on one another in the closed position of the weapon breech, the barrel hook (2) allocated to the hinge bolt (4) being at a distance (a) from the same in the closed position, the lateral web (10) and second barrel hook (5) furthermore in each case having such a load cross-section that they can absorb at least the longitudinal forces occurring during firing, and, finally, both the bolt (7) and the locking catch (6) being constructed in the form of a wedge with in each case one essentially identical wedge angle ( beta ). <IMAGE>
Patent DE-3231944-A1 (DE)
Title: Fibre separator
Inventor: FERRI JOHANN WALTER
IPC: B01D46/00
Filed: 1982-08-27
Abstract: A cylindrical sifting element (8) is arranged in non-movable fashion approximately coaxially in a cylindrical housing (2) of the fibre separator, in which sifting element a rotor which bears a masking section (20, 22) is arranged in a freely rotatable fashion. The housing has a tangential inlet connecting element (4) which opens into an untreated-air chamber (10) which surrounds the sifting element (8). A fibre shaft which is built onto the housing is connected to the untreated-air chamber (10). An axial outlet connecting element (14) of the housing adjoins a purified-air chamber (12) which is bounded by the sifting element. The rotor comprises blades (42, 44) which drive said rotor under the action of air which penetrates the sifting element so that the masking sections (20, 22) migrate along the inside of said element. The respectively temporarily covered surface areas of the sifting element through which a flow cannot take place are blown off by air flowing in the untreated-air chamber and freed from deposited fibres. The fibres separated out of the airstream collect in the fibre shaft. <IMAGE>
Patent DE-3232578-A1 (DE)
Title: Roll trailer, in particular for ships' holds
Inventor: HACKENSCHMIDT HARALD
IPC: B62D53/06
Filed: 1982-09-02
Abstract: A roll trailer, in particular for ships' holds, having a loading surface whose rear end is assigned travel rollers or the like and at whose end side traction elements for coupling to a traction engine are provided, is to be equipped in such a way that it is suitable as a transport vehicle for relatively long distances and roads with an unfirm surface. For this purpose, a platform (3), which can be moved on pneumatic tyres (4), for the roll trailer (30) with control elements (18,21) holding its rollers (31) is provided, this platform (3) forming a running-up ramp in an inclined position of rest and it being possible to transfer it from this position of rest by rotation about a support axle (10) into a travel position in which it rests against the roll trailer (30). At the same time, the platform (3) with the support axle (10) is rotatably suspended between the two wheel rockers (7). The latter produce, together with the platform (3) and a roll trailer (30), a mobile unit which satisfies the requirements in accordance with the objective. <IMAGE>
Patent DE-3235989-A1 (DE)
Title: Crash helmet for motorcyclists
Inventor: KOERBER KURT A DR
IPC: A42B3/30
Filed: 1982-09-29
Abstract: The crash helmet (1) for motorcyclists has as a communication device a flexible hose line (6, 9) which opens out into an earpiece (4) and a mouthpiece (8). The hose line (6, 9), the earpiece (4) and the mouthpiece (8) are attached on the inside to the padding (3) of the helmet or integrated in the padding. The hose line is led out of the helmet at the lower edge and provided at the free end with a readily detachable coupling (11) for the connection of a further hose line (12). <IMAGE>
Patent DE-3236397-A1 (DE)
Title: Switching-off arrangement for electric motor/worm drive combinations
Inventor: TODT LOTHAR
IPC: H02K11/20
Filed: 1982-10-01
Abstract: The invention relates to a switching-off arrangement for electric motor/work drive combinations. The axial forces which occur on the rotary shaft on locking of the output drive side of the worm drive are used in this case. The rotor shaft is supported in a sprung manner such that it can move longitudinally and, via a lever, operates an electrical switch which is located in the power supply circuit of the electric motor. <IMAGE>
Patent DE-3240287-A1 (DE)
Inventor: RULAND ALFRED DR
IPC: C07C41/48
Filed: 1982-10-30
Abstract: Useful novel ketene O,O-acetals of the formula I    <IMAGE>  I  where R1 is a tertiary alkyl radical of 4 to 6 carbon atoms or unsubstituted or halogen-substituted phenyl, R2 is hydrogen and R3 and R4 independently of one another are each phenyl which is unsubstituted or substituted by halogen, alkoxy, alkyl, phenyl, phenoxy, cyano, nitro or trifluoromethyl, their preparation and their use for the preparation of ketene O,N-acetals.
Patent DE-3241372-A1 (DE)
Title: Bearing arrangement for the precession axis of a gyroscope
Inventor: FICHTNER KARL-HEINZ ING GRAD
IPC: G01C19/16
Filed: 1982-11-09
Abstract: The invention relates to a bearing arrangement for the precession axis of a gyroscope, comprising a frame (2), a 1st cage (1) supported in the frame and preferably rebalanced and a gyrorotor (3) supported perpendicularly to the bearing axis (6) of the first cage (1), the 1st cage (1) and the frame (2) being connected to one another via two oppositely located spring hinges (4, 5) at a right angle to the bearing of the gyrorotor (3) in the 1st cage (1). To achieve a defined attitude of the precession axis of a gyroscope over a prolonged period of operation, and in order to simplify manufacture, assembly and adjustment, the spring hinges (4, 5) are constructed integrally with the frame (2) and the 1st cage (1) or parts of frame and cage. <IMAGE>
Patent DE-3247862-A1 (DE)
Title: Circuit arrangement for controlling and monitoring the document run in a document processing device
Inventor: LANGFELDT FOLKHART
IPC: G06K13/067
Filed: 1982-12-23
Abstract: The document transport path is divided into individual monitoring stations (ÜP), input and output light barriers being allocated to each monitoring station, the document-related signal data (ED) of which light barriers are logically combined with the status data (ZD) of the respective monitoring station to form new status data (ZDN) or are evaluated to form specific error signals (FS). For all monitoring stations, common switching mechanisms (SW) are provided, the outputs of which are fed back to the inputs via active stores (ASP) which can be serially connected through. The status data (ZD) of the respective monitoring stations, contained in the active stores (ASP), together with the associated current light-barrier signal data (ED), are connected cyclically in the order of the arrangement of the monitoring stations to the switching mechanisms (SW) where they are logically combined with one another. <IMAGE>
Patent DE-3303615-A1 (DE)
Title: "Hobbibett" air bed (whose size is 100cm x 200 cm/15 cm high) consisting of 200 cavities which can be inflated individually and consist of rubber or plastic
Inventor: HOBBENSIEFKEN GEROLD
IPC: A47C27/10
Filed: 1983-02-03
Abstract: The invention relates to a bed which consists of a plastic base whose area is divided into fields which are used as cavity receiving compartments. A large number, for example 200, of cavities which can be inflated individually are provided, which make it possible to match the bed surface to any body shape by individual inflation or release of air.
Patent DE-3305723-A1 (DE)
Title: Isolating link for overhead lines of electrical railways
IPC: B60M1/18
Filed: 1983-02-18
Abstract: An isolating link for overhead lines of electrical railways has at least one isolating draw bar (5) which is rigidly connected in each case to one extended end (3d; 3e) of the clamp element (3a) of two end clamps (3) on the contact wire. The lower edge (4) of the isolating draw bar (5) is located over the contact plane of the contact wire (1, 2) and contact cannot be made with it. After the isolating link is put on the continuous contact wire and clamped tight, a contact wire element at the cut-out (7) provided for the cutting tool can be disconnected. In the case of a fault, the disconnected contact wire element (10) is removed in order to electrically disconnect two overhead wire regions, whilst during fault-free operation of the overhead wire the disconnected contact wire element (10) can be held against the end clamps (3) of the contact wire by further clamping jaws (3c). Only the end clamps (3) of the contact wire serve to hold the isolating link in the overhead wire. <IMAGE>
Patent DE-3314905-A1 (DE)
Title: Pressure-operated valve
Inventor: SCHNATMEYER HANS DIPL ING
IPC: A62C37/46
Filed: 1983-04-25
Abstract: Pressure-operated valve with a closure part (5) arranged on the low-pressure side, a pressure chamber (8) connected to the high-pressure side, a pressure-reactive regulating unit (9) arranged in the said pressure chamber and loading the said closure part (5) in the closing sense, and with a control line (21, 24) in which at least one triggering valve (22, 23) is arranged. A second pressure chamber (11) with a pressure-reactive regulating unit (10) is provided. This second regulating unit (10) acts in the opening direction on the closure part (5). The control line (21, 24) runs between the high-pressure side and the second pressure chamber (11). An uncoupling of the control line (21, 24) does not cause unwanted opening of the pressure-operated valve. <IMAGE>
Patent DE-3316825-A1 (DE)
Title: Wiper device for motor vehicle windows
Inventor: DIETRICH JAN DIPL ING DR
IPC: B60S1/50
Filed: 1983-05-07
Abstract: A device is proposed which serves to wipe motor vehicle windows. The wiper device comprises a wiper blade which can be moved to and fro between reversal positions and is provided with a wiper element with a flexible wiper lip which rests on the window to be wiped. In addition, the wiper device has a device for wetting the window with a fluid. So that the entire wiping field covered by the wiper lip is wetted uniformly and can thus be cleaned quickly and thoroughly, at least one stationary storage element for a cleaning fluid is arranged between the reversal positions of the wiper blade at least approximately in the plane of movement of the wiper lip. <IMAGE>
Patent DE-3320422-A1 (DE)
Title: Self-adhesive mounting for fastening and guiding internal blinds on plastic and alloy windows
Inventor: HEMPEL KARL-HEINZ
IPC: E06B9/323
Filed: 1983-06-06
Abstract: Self-adhesive angle-rail set for fastening and guiding blinds on the casement of plastic and alloy windows. The abovementioned form of fastening of blinds is to serve for avoiding damage to window frames or casements. In this connection, it is ensured that the window frames remain undamaged even after demounting the angle strips (e.g. for the purpose of moving out or moving of the tenant).
Patent DE-3328846-A1 (DE)
Title: Switching arrangement for regulating the speed of an electric motor
Inventor: BERKMANNS HELMUT DIPL ING
IPC: H02P7/285
Filed: 1983-08-10
Abstract: In a speed-regulating circuit for an electric motor, the output signal of a tachogenerator is supplied to the regulator via a lowpass filter, preferably via an active lowpass filter with a low limiting frequency, as a result of which interference signals, which are primarily caused by the commutation of the motor current, are filtered out.
Patent DE-3329225-A1 (DE)
Title: Silicon carbide-based sliding material
Inventor: OKUNO AKIYASU
IPC: C04B35/565
Filed: 1983-08-12
Abstract: An SiC-based sliding agent is formed from a sintered SiC body which contains an SiC phase and an additional phase of boron nitride, graphite, carbon black or a mixture thereof, with a mean grain size of 200  mu m or less. The additional phase is present in a quantity of 1 to 20 % by volume, relative to the volume of SiC, uniformly dispersed along the SiC grain boundaries and serves as a solid lubricant during sliding.
Patent DE-3330395-A1 (DE)
Title: Swing-lid for glasses and tankards
Inventor: OSTLER REINHOLD
IPC: A47G19/12
Filed: 1983-08-23
Abstract: A swing-lid (10) for glasses and tankards is described, having a cover part (16) intended to rest on the edge (14) of the glass and a retaining tab (24) connected thereto by a centre pivot (22) and capable of being fixed on the peripheral surface of the glass. The cover part (16) consists of a substantially flat lid on which is formed a projection (18) with a punching (20) defining an inner and outer section. In this case, the retaining tab (24) is formed by the outer section of the projection (18), whereas the inner section serves as a lever tab (26). <IMAGE>
Patent DE-3340671-A1 (DE)
Title: Closure for rings or pot-shaped housings
Inventor: VOIT WILLY
IPC: F16B5/07
Filed: 1983-11-10
Abstract: Closure for rings or pot-shaped housings made of bent strips which are closed by a seam, one edge of the strip having projections and the other edge of the strip having recesses assigned to these projections. The fact that the two edges of the strip each have a step which overlaps when bent results in a ring or a housing wall which no longer requires expensive sealing. In the event of high requirements of the leak-tightness and strength of the ring or housing wall, the two edges of the strip are designed such that the sealing faces are arranged alternately in the form of steps at the top and the bottom.
Patent DE-3342531-A1 (DE)
Inventor: SCHAEFER FRITZ PETER
IPC: H05H1/22
Filed: 1983-11-24
Abstract: In a method and an apparatus for generating a hot plasma which emits electromagnetic radiation in the wavelength range below about 100 nm in a predetermined volume, in which a laser radiation pulse of short duration with sufficient energy and power density is focused into the volume containing a target material, the laser radiation energy which is necessary for generating the plasma emitting the radiation is radiated into the target volume by a focused laser radiation pulse which is shorter than one picosecond. The method may be used in ASE X-ray laser comprising an axicon focusing optics.
Patent DE-3343988-A1 (DE)
Title: Brick-shaped toy
Inventor: SPRING HANS ULRICH DIPL ING
IPC: A63H33/00
Filed: 1983-12-06
Abstract: This toy essentially comprises a cuboid blank (1), which has a first recess (2) to accommodate a hand. Within the first recess are additional, smaller recesses (3) for accommodating fingers of the hand. The blank consists of a foamed, elastic and easily processable plastic. This toy permits people, especially children, to shape figures of all types with simple tools, such as scissors and knives, which shaped figures can be moved by finger movements. <IMAGE>