baber/WOPTO huggingface dataset:
Patent DE-3304432-A1 (DE)
Title: Plastic bag
Inventor: JORDA JOSE MAS
IPC: B65D33/16
Filed: 1983-02-09
Abstract: The invention relates to a plastic bag with a tubular body of film or lattice material which, when folded flat, possesses two superposed side walls which are provided with closure projections (10) which project from the theoretical outline of the open end as integral, substantially elongate continuations of the body and serve for mutual overlapping in order to be connected to each other and to close the aperture of the bag. 
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Patent DE-3305172-A1 (DE)
Title: Process and device for the casting-in of shaft frames
Inventor: LIEHR ROLF
IPC: B66F19/00
Filed: 1983-02-15
Abstract: The process for the casting-in of shaft frames (12) comprises the following process steps: arranging a lifting device (16) in the shaft frame (12), lifting and fixing the shaft frame (12) at the desired height and subsequently removing the lifting device (16), providing hose formwork (22) or sheet metal formwork (104) in the region of the gap (20) between the shaft frame (12) and shaft (18) and subsequently casting-in the shaft frame (12) with a flowable mortar, and removing the hose formwork (22) after the mortar has hardened. If necessary, in a shaft frame with a foot, the upper region, embedded in the roadway surface (10), of the shaft frame with foot (12) can be exposed by means of a cutting machine. The device for carrying out the process consists of a lifting device (16) for lifting the shaft frame (12) and of hose formwork (22) or sheet metal formwork (104) covering the gap (20) between the lifted shaft frame (12) and the shaft (18). If necessary, a cutting machine for exposing the upper region, located in the roadway surface, of a shaft frame with foot can be provided. <IMAGE>
Patent DE-3305864-A1 (DE)
Title: Appliance for sorting granular debris
Inventor: SCHWEITZER KARL-FRIEDRICH
IPC: B03B9/06
Filed: 1983-02-19
Abstract: The invention contains an addition to the main patent application (Patent Application 3228936.7). The additional application relates, according to Figure 2, especially to floating granular debris, which is driven by means of collecting nozzles (51) and accelerating nozzles (52) into channels (53) which are arranged in the outer third of the water surface, in order to reach the outflow trough (70) via an overflow weir (58). The channel (53) is bounded by a lateral boundary (54) from the rest of the water surface. A diaphragm (57) regulates the cross-section of the overflow. <IMAGE>
Patent DE-3308304-A1 (DE)
Title: Process for the production of substitute natural gas
Inventor: MESSERSCHMIDT DETLEF
IPC: C10K3/04
Filed: 1983-03-09
Abstract: The invention relates to a process for the production of substitute natural gas from coke oven gas or other hydrogen- and methane-containing starting gases. For simpler and more economical processing it is proposed that the starting gas, purified or unpurified, is separated by selection of the molecular sieve in a PSA unit in such a manner that the flushing gas of the PSA unit can achieve substitute gas quality. <IMAGE>
Patent DE-3309292-A1 (DE)
Title: Specular-reflector luminaire
Inventor: KIESSLING ERNST
IPC: F21S8/00
Filed: 1983-03-16
Abstract: A specular-reflector luminaire, in particular for medical rooms, having a luminaire base body, which can be mounted on a mirror, can be attached with its mirror-side end in the mounting plane of the mirror to a wall fitting projecting over the mirror surface, and carries a light source, is characterised for the purpose of accommodating further electrical equipment in medical rooms in an easily manipulable and space-saving fashion in that the operating and indicating elements of the further electrical equipment (14) are arranged on a front surface (13) of the luminaire base body (2) averted from the mirror (1), the electrical equipment preferably being an electric clock or a radio. <IMAGE>
Patent DE-3316230-A1 (DE)
Title: Line and/or apparatus protection circuit breaker against excess current and short circuit
Inventor: KELAIDITIS KONSTANTIN DR ING
IPC: H01H71/10
Filed: 1983-05-04
Abstract: A line and apparatus protection circuit breaker (1) against excess current and short circuit has a main current path (5) which can be interrupted (8) by means of a relatively fast operating mechanism (7) which responds to a short circuit, and by means of a relatively slow operating mechanism (6) which responds to excess current. The interruption point (8), which is operated by the relatively fast operating mechanism (7), of the main current path (5) is bridged by means of a shunt current path (9) having an electrical resistor (10) and a second interruption point (12) which can be opened by the said (6) and/or by a further relatively slow operating mechanism (11). Behind the second interruption point (12), a further current path (13) branches off to the neutral conductor with a third interruption point (14) which is coupled to the first-mentioned interruption point (8) in such a manner that, when it is being opened by the relatively fast movement mechanism (7), it closes, and which can be opened by means of a further relatively fast operating mechanism (15), which is arranged in the said further current path (13), with the first-mentioned interruption point (8) being closed. Such a protection circuit breaker is selective with respect to protection devices (2; 3), which may be connected upstream and/or downstream, without having to switch on and off a number of times in the event of a short circuit. As an apparatus protection circuit breaker, it can interrupt the main current path briefly during the switching-on current shock. <IMAGE>
Patent DE-3318140-A1 (DE)
Title: Compressed air cleaning device
Inventor: OBERDORFER GUIDO
IPC: B08B5/02
Filed: 1983-05-18
Abstract: The compressed air cleaning device has a deactivatable gun which has a spray pipe and contains an injector which, with the aid of an introduced jet of compressed air, sucks a plurality of chemicals out of a chemical container via the suction line connected to the injector. In the line to the injector, a switch-over valve is arranged which permits optional switching over to various chemical containers and to a water connection. As a result, it is possible to produce a jet of compressed air mixed with chemicals, a jet of compressed air mixed with water or simply a jet of compressed air.
Patent DE-3319560-A1 (DE)
Inventor: KOPETZKY HORST
IPC: H04M3/22
Filed: 1983-05-30
Abstract: To prevent erroneous evaluations due to low leakage resistances because of a fault, the equipment is switched to a low-impedance power supply in the event of a loop closure signal but the connection is set up only after a waiting time period. If there is a loop interruption signal within the waiting time, the equipment is switched back to the high-impedance supply; if within a further waiting time period another loop closure signal is received, any new occupancy of the subscriber's line circuit is prevented or otherwise a hang-up signal is transmitted to the subscriber. In order to prevent a situation such that a new occupancy is still not prevented on relatively high-impedance extensions, but the extension incorrectly interprets the situation as lifting of the handset by the subscriber and the caller therefore is charged, a lower sensitivity is allotted to the event indication than to the call indication. <IMAGE>
Patent DE-3321339-A1 (DE)
Title: Pressing mould and pressing process for ram presses for producing all-round-profiled facing and construction elements from clay or other materials
Inventor: WELZEL GOTTFRIED
IPC: B28B7/16
Filed: 1983-06-13
Abstract: The present Patent Application P3321339.9 relates to the machinery and pressing moulds required for carrying out the process according to Patent Application P3312287.3 "Process for producing facing and wall prefabricated members with side-profiled ceramic construction elements" in particular for moulding the side profiles of the ceramic construction elements. A precondition here is the use of ram presses of which the upper mould 1 is a fixed part of the press while the lower mould 2 is firmly connected to the pressing ram, which acts from bottom to top. The upper mould 1 is at the same time the support for interchangeable pressing dies 3, shaping the end faces 10 of the construction elements. The rear sides of the ceramic construction elements are moulded by the lower mould 2, provided with pressing cores 4. Format 6 and thickness 7 as well as the moulding of the side profiles of the ceramic construction elements are determined by multi-part pressing mould parts 5, which are arranged in guides, can be opened and closed, are closed before introduction of the pressing operation and opened again once pressing has been performed, so that the ceramic construction element can be removed from the pressing mould or can leave the mould of its own accord. <IMAGE>
Patent DE-3325725-A1 (DE)
Title: Switchable transmission, especially for model vehicles
Inventor: DORF GUENTER
IPC: F16H3/66
Filed: 1983-07-16
Abstract: Published without abstract.
Patent DE-3325952-A1 (DE)
Title: Device for producing high-quality solid/liquid mixtures down to a colloidal system
Inventor: HACHENEY WILFRIED DIPL ING
IPC: B01F27/91
Filed: 1983-07-19
Abstract: The device has an inner container 1, through which a medium flows in spiral eddies under the action of gravity, is of rotationally symmetrical shape and has a hyperboloid generatrix in the vertical direction. The inner container 1 is provided with a filling orifice 3 and a discharge orifice 4. It is surrounded by a likewise rotationally symmetrical outer container 5 provided with a hyperboloid generatrix. The medium withdrawn from the bottom discharge orifice of the inner container 1 can be transported back by mechanical means through the space bounded by the inner container and outer container to the filling orifice 3 of the inner container 1, so that the medium once more flows through the inner container. The finished product is withdrawn via a line 13, which can be closed by means of an isolation valve 14. A drivable propeller 8 is provided in the inner container 1 and a drivable propeller 11 is provided in the outer container, by means of which additional acceleration forces are applied to the solid/liquid mixture until a colloid or a coagulate has been obtained as end product (Figure). <IMAGE>
Patent DE-3329016-A1 (DE)
Inventor: WARZELHAN VOLKER DR
IPC: C08F4/62
Filed: 1983-08-11
Abstract: 1. A process for the preparation of an ethylene homopolymer or an ethylene copolymer containing minor amounts of copolymerized C3 -C12 -alpha-monoolefins by polymerization of the monomer or monomers at from 30 to 150 degrés C, and under from 2 to 150 bar, using a silica xerogel/chrominum trioxide catalyst which is obtained when (1) a finely divided silica xerogel is first prepared by a method in which (1.1) a silica hydrogel which contains from 10 to 25 percent by weight of solid (calculated as silicon dioxide), is substantially spherical and has a particle diameter of from 1 to 8 mm is employed as a starting material, this hydrogel being obtained by a method in which (1.1.1) a sodium or potassium waterglass solution is introduced into a stream of an aqueous mineral acid subjected to angular momentum, the introduction being effected both longitudinally and tangentially with respect to the stream, (1.1.2) the resulting silica hydrosol is sprayed in the form of drops into a gaseous medium, (1.1.3) the atomized hydrosol is allowed to solidify in the gaseous medium to give a hydrogel, and (1.1.4) the resulting, substantially spherical hydrogel is freed from salts by washing, without prior aging, (1.2) not less than 60 % of the water present in the hydrogel (1.1) is extracted using an organic liquid from the series consisting of the C1 -C4 -alkanols and/or C3 -C5 -alkanones, (1.3) the resulting gel which has been dewatered and has been treated with the organic liquid is dried until no further weight loss occurs in the course of 30 minutes at 180 degrees C under a reduced pressure of 10/750 bar (10 mm Hg) (xerogel formation), and (1.4) the xerogel thus obtained is converted to particles having a diameter of from 20 to 2,000 mu m, (2) this xerogel (1) is then loaded with the desired amount of chromium from a 0.05 - 5 percent strength by weight solution of chromium trioxide in a C3 -C5 -alkanone or from a 0.05 - 15 percent strength by weight solution, in a C1 -C4 -alkanol, of a chromium compound which is converted to chromium trioxide under the conditions of stage (3), the particular solvent being permitted to contain no more than 20 percent by weight of water and being evaporated during the procedure, and (3) the resulting product (2) is finally kept in an anhydrous stream of gas containing more than 10 vol percent of oxygen for from 10 to 1,000 minutes at from 400 to 1,100 degrees C, wherein, in addition to the catalyst, a co-catalyst is employed which consists of an open-chain or cyclic alumoxane of the formula R2 AlO[RAlO]m AlR2  ou [RAlO]n respectively, there R is C1 -C12 -alkyl, m is from 0 to 50 and n is from 2 to 20, with the proviso that the atomic ratio of chromium in the catalyst to aluminum in the cocatalyst is from 1:1 to 1:300.
Patent DE-3331334-A1 (DE)
Title: Long-time integrator
Inventor: SCHMIDT PETER DIPL ING
IPC: G06G7/186
Filed: 1983-08-31
Abstract: Long-time integrator with an a.c. voltage path, which contains a high-pass filter and is connected to the inverting input of a differential amplifier, with a d.c. voltage path, which has a low-pass filter, a modulator, an amplifier, a demodulator and a passive filter and is led to the non-inverting input of the differential amplifier, and with a feedback path, which contains a capacitor and exists between the output and the input of the differential amplifier. The long-time integrator is intended for measuring instruments, in particular flux meters. The corresponding design of the d.c. voltage path is intended to achieve the effect that the signals leaving the main amplifier are freed of long-term fluctuations and recognisable as reproducible integrals of the input voltage signals. To this end, the modulator and the demodulator are operated in push-pull mode and an active filter is arranged between the demodulator and the passive filter. <IMAGE>
Patent DE-3340682-A1 (DE)
Title: Catalyst for the combustion and conversion of gases and higher hydrocarbons, and waste gas afterburner comprising such a catalyst
IPC: B01J23/76
Filed: 1983-11-10
Abstract: Catalyst for the conversion of gases and higher hydrocarbons which, on a porous oxidic support material, comprises an active metal coating which contains lanthanum and cobalt as active metal components, the coating being formed by impregnating the support body with a solution of thermally readily decomposable lanthanum salts and cobalt salts and subsequent firing, the metal coating comprising 1 part cobalt and 1-3 parts, preferably 2 parts, lanthanum and - based on the sum of said substances - 2 to 20 % by mass of cerium.
Patent DE-3343552-A1 (DE)
Title: Locking latch for a door lock
Inventor: HUF RUDOLF
IPC: E05B15/10
Filed: 1983-12-01
Abstract: The invention relates to a locking latch for a door lock, having an oblique front flank and, opposite this, a straight rear flank, the face of which extends parallel to the door leaf and forms with the front flank a common edge, namely the front edge. According to the invention, the straight rear flank is subdivided into a plurality of part faces (12, 13, 14) which are each parallel to the face of the door leaf (3) and which, starting from the front edge (11) of the latch (6), are at a distance from the oblique flank (10) which increases in steps. A readjustment of a warped door thereby becomes superfluous or, at all events, less frequent than was necessary hitherto. <IMAGE>
Patent DE-3347419-A1 (DE)
Title: Method for taking and reproducing moving pictures
Inventor: JASKOWSKY JOERG DIPL ING
IPC: G03B19/18
Filed: 1983-12-29
Abstract: A method for taking and reproducing moving pictures uses photographic negative material, a cinecamera (1) and a cinematographic or optoelectric reproduction device (e.g. film pick-up). In the method, the successive single pictures are recorded distributed in matrix fashion on a plurality of areas on the surface of a standard picture field or read off from such areas during reproduction, the frame frequency being a multiple of the film feeding frequency. In order to carry out the method, the lens (4), which can be brought to coincide with the single picture fields, is arranged on a rotatable lens holder (4a) which is constructed as the armature of a stepping motor (4b). <IMAGE>
Patent DE-3400509-A1 (DE)
Title: Fluorescent phospho compounds, processes for their preparation and their use for labelling in biological systems
Inventor: HORNER LEOPOLD PROF DR
IPC: C07F9/42
Filed: 1984-01-10
Abstract: Phospho compounds of the formula I <IMAGE> in which R, R<1> and R<2> have the meanings given, and processes for the preparation of these compounds are described. They can be used for labelling purposes in biological systems.
Patent DE-3402013-A1 (DE)
Title: Control arrangement for a direct DC converter with electronic travel brake switch-over
Inventor: RUNGE WOLFGANG DR ING
IPC: H02M7/757
Filed: 1984-01-21
Abstract: In this control arrangement for the converter of a regenerative vehicle drive, the controller voltage (UR) of a current controller (1) which controls the DC output current (Id) of the converter is fed to a comparator (2) and to a characteristic curve change-over switch (4). As a result, a free moving transition between the travelling and braking operating ranges of the vehicle is to be made possible. The comparator (2) has a hysteresis-shaped characteristic curve with at least two switching points (UR1, UR2) and transmits a signal for travelling mode (SF) or for braking mode (SB) to the characteristic curve change-over switch (4) and a control set (3) as a function of the controller voltage. The control set (3) serves to drive the main converter valve (TH) and the electronic travel/brake change-over switch (TS). The characteristic curve change-over switch (4) is part of this control set (3) and specifies the corresponding characteristic curves for travelling mode (aF) and braking mode (aB). In order to suppress mains reactions, the comparator can also have two hystereses with four switching points, as a result of which an additional travelling/braking mode with its own characteristic curve is made possible. <IMAGE>
Patent DE-3402260-A1 (DE)
Title: Device construction kit using the slot system
Inventor: BERENZ KLAUS
IPC: B23Q3/10
Filed: 1984-01-24
Abstract: A device construction kit contains basic elements (1) which possess a grid of equidistant T-slots (2) intersecting at right angles. Mounted elements (9) carrying position-determining marker pins (11) can be fixed to the basic elements (1). The marker pins (11) engage positively into the slots (2), for which purpose they can be flattened especially in order to form parallel guide faces (16). The mounted elements (9) positioned in this way are screwed into threaded bores (7) which are located in the slot intersection of the basic elements (1). <IMAGE>
Patent DE-3403625-A1 (DE)
Title: Pad for keys or valves
Inventor: VALENTINO PETE P
IPC: G10D9/04
Filed: 1984-02-02
Abstract: The invention relates to a pad for the key cups of wind instruments, for use in the selective sealing of finger holes and saliva holes. The pad consists of a plastic disc comprising two layers, one of which is suitable for sealing the hole, the other being less rigid and bearing a layer of contact adhesive and a masking paper. The invention can be used to press the disc into the key cup, which causes the paper to be attached to the inner concavity of the key cup and so exposes an annular body of the surface coated with adhesive. This ring adheres to the sides of the key cup and holds the pad securely in its place, while correction as regards minor misalignments and the like is automatically undertaken. The pad is preferably slightly oversized relative to the diameter of the key cup.
Patent DE-3403905-A1 (DE)
Title: Loading device for a selective-cut heading machine
Inventor: STOLTEFUSS WILHELM
IPC: E21D9/12
Filed: 1984-02-04
Abstract: The invention relates to a loading device for a selective-cut heading machine comprising a scraper chain conveyor with loading aids attached in front. These loading aids are designed, for example, as flat-blade conveyors. At its discharge end (9), the scraper chain conveyor (8) has an oscillating planing member (12) which is designed as a two-armed lever (13), is acted upon by a hydraulic cylinder (14) and oscillates about a pivot pin (15) (Fig. 1). <IMAGE>
Patent DE-3405558-A1 (DE)
Title: Low pollutant emission integral diesel engine with dual fuel feed
Inventor: SIMON MICHAEL DIPL ING
IPC: F02B75/02
Filed: 1984-02-16
Abstract: The invention relates to a diesel engine, in which the generation and emission of smoke, soot and deposited pollutants is greatly reduced. To this end it is proposed that a first portion of the fuel be fed to the engine during the intake and/or compression stroke and that the second, remaining amount of fuel be injected only on reaching the top dead centre. The first portion of fuel is preferably fed in below the ignition limit of the fuel-air mixture, whilst the remaining amount of fuel brings about a local rise above the ignition limit and ignition of the total mixture.
Patent DE-3405948-A1 (DE)
Title: Torsional vibration damper having bowl-like connecting parts between the covering sheets
Inventor: KITTEL FRIEDRICH DIPL ING
IPC: F16F15/129
Filed: 1984-02-18
Abstract: The invention relates to the connection of covering sheets for torsional vibration dampers. For a simple and stiff construction of the part of a torsional vibration damper formed by the two covering sheets, it is proposed to provide both parts with regions which are deep-drawn in a bowl-like manner and extend into the intermediate space between both covering sheets, come to rest close to one another there and are connected to one another by means of a riveting process. In this case, on the one hand, a separate tubular rivet can be inserted into corresponding holes, but a part can also be designed with its bowl-like region as a tubular rivet itself. This results in simple assembly and a particularly stiff component.
Patent DE-3406973-A1 (DE)
Title: On/off control of a triac in two-wire operation
Inventor: DONAT NORBERT
IPC: H05B39/08
Filed: 1984-02-25
Abstract: A circuit arrangement for a two-wire alternating-current switch is shown and described, the on- and off-state of which is controlled by the logic state of the output of control electronics, the control electronics being connected to a known phase angle control via an interface circuit. The interface circuit consists of the combination of a diode and Zener diode and a transistor for switching the ON/OFF function.
Patent DE-3413313-A1 (DE)
Title: Input unit for a display device
Inventor: NISHIMURA SUSUMU
IPC: G06F3/033
Filed: 1984-04-09
Abstract: An input unit for numbers and symbols for a display device, for example the screen of a cathode ray tube used as output stage of a computer, in which electrical coordinate-potentials are formed in an input area exhibiting film resistors and insulating sheets via a contacting manually initiated by means of a spring or a pen, comprising a plurality of individual keying areas in an input section, with an additional second input section (B), there being a common analog/digital converter provided for both input sections and the input area of the first input section being greater than that of the second input section and the density of the individual keying areas per unit area of the first input area being smaller than that of the second input area.