baber/WOPTO huggingface dataset:
Patent DE-3106683-A1 (DE)
Title: Circuit arrangement for monitoring the amplitude of alternating voltages, particularly track voltages in railway safety systems
Inventor: DICKSCHEN ARNO
IPC: B61L1/18
Filed: 1981-02-23
Abstract: To monitor the amplitude of alternating voltages, particularly of track voltages in railway safety systems, a circuit arrangement is used in which a transistor ring core circuit, in connection with two Zener diodes (Z1, Z2), evaluates the supplied alternating voltage. In this arrangement, the ring core (RN) does not form a trigger threshold in connection with a premagnetisation of the ring core (RN) as is usual but acts as active monitoring element for ensuring that the switching threshold is failsafe. This threshold is formed with the aid of a Zener diode (Z2) located in the emitter circuit of the transistor (TR), which diode is connected to the other Zener diode (Z1) which has a smaller Zener voltage. The premagnetisation current through a winding (W1) of the ring core (RN) results from the difference between the Zener voltages of the two Zener diodes (Z1 and Z2) and the value of a resistor (R2) which is connected in series with the Zener diode (Z1). The special feature of this circuit lies in that the ring core (RN) does not need to be specially selected in any way. In addition, component failures in this circuit have such an effect that no signals which may be hazardous will be output. <IMAGE>
Patent DE-3107398-A1 (DE)
Title: Connection element made of poorly heat-conducting material
IPC: E06B3/263
Filed: 1981-02-27
Abstract: The invention relates to a connection element made of poorly heat-conducting material. Such an element is used for connecting effectively heat-conducting parts, for example aluminium parts for windows. The element according to the invention has two outer and two inner legs (17, 18; 21, 22), of which the two outer legs (17, 18) engage in each case in a groove of the effectively heat-conducting parts (9, 10; 11, 12), and the two inner legs (21, 22) bear in each case on a projection (7, 8) of the effectively heat-conducting parts. The two inner legs (21, 22) in this case have, at their respective ends, claws (27, 28) which are directed towards one another. At a certain distance from these claws (27, 28), an elastic bridge (25) is provided between the inner legs (21, 22). <IMAGE>
Patent DE-3117618-A1 (DE)
Inventor: WENZ WILHELM ING GRAD
IPC: F23K1/00
Filed: 1981-05-05
Abstract: 1. Process for the storage of brown and pit coal dust and mixtures of same in a storage hopper prior to the feed of the pulverized coal or of the mixture, from a fluidized powder material column to a coal dust burner by dosed transfer of the dust or of the mixture in a pneumatic conveying flow, characterized in that the coal dust is discharged by gravitation or mechanical means from the storage hopper and conducted through an air steadying and exhaust zone prior to its fluidization and feed in the pneumatic conveying flow, in order to prevent the ingress of fluidizing air into the storage hopper.
Patent DE-3118990-A1 (DE)
Title: Coupling device for an eyepiece
Inventor: GLUCH DAGOBERT
IPC: G02B23/00
Filed: 1981-05-13
Abstract: Coupling device for an eyepiece or a similar optical instrument, having a multipart coupling housing, a central, stepped, rotationally symmetrical port for accepting the eyepiece, and having clamping elements which can be moved via operating elements and lock the eyepiece with the housing in the coupled state. Provided as clamping elements are at least two mutually opposite clamping strips which are mounted by means of two sliding wedge mechanisms, which are likewise mutually opposite, serve as operating elements and can be moved radially, such that they can move into a coupling-free position against the action of springs. Blocking elements assigned to the sliding wedge mechanisms can be used to fix the sliding wedge mechanisms in the switching position which retains the clamping strips in the coupling-free position and which can be neutralised by the eyepiece when the latter is introduced into the coupling position inside the port.
Patent DE-3120792-A1 (DE)
Title: Granule drier
Inventor: BUZGA HEINRICH ING GRAD
IPC: B29B13/06
Filed: 1981-05-25
Abstract: The present invention relates to a device for dewatering plastic granules. It consists of a rotor which is enlarged upwards in a conical or step-shaped manner and a screen basket which surrounds said rotor in a step-shaped manner.
Patent DE-3125873-A1 (DE)
Title: Novel anthraquinone dyes and use thereof
Inventor: RUSKE MANFRED
IPC: D06P3/60
Filed: 1981-07-01
Abstract: Dyes of formula <IMAGE> where X is -CnH2n-O-Cm-Hm- or hydroxy-C3-C6-alkylene and n and m are independently of each other 2 or 3. Applied by dyeing or printing to cellulose and cellulose-containing material swelled (swollen) with water-miscible swelling agents, the dyes yield deep blue dyeings having high fastness properties.
Patent DE-3125910-A1 (DE)
Title: Tent structure with ropes for tensioning the roof skin
IPC: E04H15/32
Filed: 1981-07-01
Abstract: In a tent structure with a roof skin which is connected by means of ropes (12) to bases (4 to 6) anchored in the ground (3), the object is to be able to tension the ropes (12) over a tensioning path which is as long as possible, even if the actual tensioning device (16) only has a short stroke. It is proposed that there be provided at the rope end portions in each case a supporting member (13) extending in the rope transverse direction and a terminal pulling eye (14) for attaching the tensioning device (16), and that there be arranged spaced apart on a tensioning frame (7) bearings (9) for the supporting members (13). Furthermore, the ropes (12) can be guided over in each case at least one deflection pulley (10, 11). A piston-cylinder arrangement with a manometer (22) indicating the pressure of the filling medium is preferably used as the tensioning and/or measuring device. <IMAGE>
Patent DE-3132971-A1 (DE)
Title: Circuit arrangement for telephone switching systems, in particular small PABX systems, in which signalling is carried out between the subscriber stations and a device which is common to them
Inventor: BLOSSFELDT DIETER DIPL ING
IPC: H04M9/00
Filed: 1981-08-20
Abstract: Digital signals are transmitted from the central device via the signalling wires (c, d) which, along with the speech wires (a,b), form the respective connection circuit as setting information for display (An) and control devices disposed in the subscriber stations (TO). Information relating to the actuation of dialling keys (Tw) and operating keys (Te) is transmitted from the individual subscriber stations via the respective signalling wires. The structural components present in each telephone set of a subscriber station are fed via the signalling wires by a power supply unit (UV) connected to them in the common device. An electronic unit (T) with an effect equivalent to that of an inductor is inserted between the transmitting unit (Sz) and the receiving unit (Ez) in the common unit and the source provided for the DC supply. If data are transmitted on the signalling wires in balanced-to-earth fashion by means of transformers (Uz, Ut), this unit can also be designed as balanced. With reference to each wire, said unit comprises a transistor (T1) with suitable polarity which is inserted with its main current path in this wire. A control circuit jointly formed from a further transistor (T2) ensures that the transistor (T1) inserted in the wire always assumes a condition which, although unsaturated, remains close to the saturation limit. This prevents the information which is formed, for example, through voltage modulation of the signal wire voltage, from being short-circuited by the connected DC voltage source. <IMAGE>
Patent DE-3134356-A1 (DE)
Title: Display unit
Inventor: SCHUSTER WOLFGANG DIPL ING
IPC: G09F9/37
Filed: 1981-08-31
Abstract: The invention describes a mechanical display unit which permits texts, images and symbols to be represented both in a still and in a moving-screen fashion by means of the matrix arrangement of graphic display elements. According to Figure 1, the elements (e.g. balls 9) are guided and transported by two specially shaped belt loops (3 and 4) lying on one another. A separating plate (partition) (6) divides the front visible belt loop (3) in the viewing area (5) from the rear, invisible loop (4). The balls (9) are guided in front of or behind the separating plate by means of an electrically controlled lever (8). The advantages of the display determine its universal applicability: can be produced from plastic parts in a very cost effective way, very simple control, no consumption of quiescent current, well able to be read with vertical illumination, very wide temperature range, very easy to equip in a fail-safe manner, also suitable for pneumatic or fluid control. <IMAGE>
Patent DE-3135126-A1 (DE)
Title: Fastening device for removable roof elements on motor vehicles
Inventor: SAITOH MASAAKI
IPC: E05D1/04
Filed: 1981-09-04
Abstract: Formed in the lower part of the receiving element (5) is an outlet opening (81) which connects a slot for introducing a fastening member (4) to the outside; in addition, or alternatively, channels for the retention of dust, dirt, sand or other foreign bodies can be formed in the lower surface of the slot of the receiving element (5); these channels extend essentially in the operating direction of the fastening member (4). At least one outlet opening can also be formed in the innermost part of the slot of the receiving element, which outlet opening is in connection with the space outside the slot. <IMAGE>
Patent DE-3137531-A1 (DE)
Title: Door actuation
Inventor: KONTOTHEODOROU ELEFTERIOS DIPL
IPC: E05F15/50
Filed: 1981-09-22
Abstract: What is proposed is a door actuation which is provided with a door valve (9) for the compressed-air-actuated to-and-fro movement of a door (1) and with an emergency valve (17), by means of which the system (4) can be made pressureless, in order to actuate the door (1) by hand. The emergency valve (17) has two interlocks (20/21, 33/34), of which one (20/21) can be actuated mechanically and the other (33/34) electromagnetically. This ensures that, although a change-over from power operation to manual operation can be brought about in any operating position of the door, nevertheless, conversely, a change-over from manual operation to power operation is possible only when first the mechanical interlock (20/21) is released and then, as a result of the actuation of the door valve (17) by the driver, a circuit for cancelling the electromagnetic interlock (33/34) is closed. The possibility of jamming in the region of the door as a result of the actuation of the emergency valve (17) through the open door (1) from outside is consequently excluded. Moreover, the arrangement of the electromagnetic interlock (33/34) in a specific intermediate position of the emergency valve (17) ensures that the latter keeps all the connections separated if the mechanical actuation is incomplete. <IMAGE>
Patent DE-3143402-A1 (DE)
Title: Two-stroke internal combustion engine
Inventor: KRUEGER HERMANN DR ING
IPC: F01L3/20
Filed: 1981-11-02
Abstract: The invention relates to a two-stroke internal combustion engine in which at least one inlet and outlet valve arranged in the cylinder head is assigned to each cylinder. In order to achieve the most efficient scavenging possible of the cylinder chamber, the shaped closure element of the inlet valve is to be on the outside such that, through interaction with the enclosing walls of the inlet valve (7) and the combustion chamber (6) when the valve (8) is in the opened state, an inlet air or inlet mixture jet penetrating the cylinder chamber is produced. It is expedient for the closure element (12) of the inlet valve (8) to be designed so that it forms a ring nozzle-shaped inlet gap (18) with the enclosing walls of the inlet duct (7) and the cylinder chamber (6) or a combustion chamber niche (16) preconnected to the cylinder chamber. <IMAGE>
Patent DE-3144738-A1 (DE)
Title: System for exposing printing plates
Inventor: WEIS HELMAR
IPC: G03F7/20
Filed: 1981-11-11
Abstract: A system exposes large-area photopolymeric printing plates, in particular for printing newspapers, with the aid of a plurality of exposure devices which are each equipped with a row of parallel UV fluorescent lamps as light source underneath a copying frame. Situated in the copying frame is a format-filling glass plate on which the negative image carrier with the printing plate on top of it can be placed for the exposure operation. Two similar exposure devices are mechanically interconnected and arranged side by side, and arranged between the exposure devices (1, 2) for the presensitization of the photopolymeric printing plate is a holding device for receiving the printing plates in a vertical plane and at a defined distance from at least one light source.
Patent DE-3145063-A1 (DE)
Title: Lock cylinder
IPC: E05B27/00
Filed: 1981-11-13
Abstract: The invention relates to a lock cylinder having a core which is mounted movably therein and which has a key channel for receiving an associated key, and having tumblers, especially pin tumblers, sensing the cross-sectional dimension of the key, and its set object is, on the one hand, to make it difficult to imitate the key by means of a special shaping and, on the other hand, to increase the number of possible closures. Furthermore, the endeavour is to make it as difficult as possible to sense the lock secret. For this, at least one transverse portion or transverse cutout of the key-channel profile or key profile extends obliquely or curvedly in the circumferential direction of the latter over at least some of its length, and a part of the core at least partially forming the walls of this transverse portion or transverse cutout is held in the core so as to be correspondingly displaceable or pivotable in the circumferential direction of the key-channel profile or key profile or transversely thereto.
Patent DE-3145800-A1 (DE)
Title: Device for effecting the return movement of a chain saw guide bar on a gripping member
Inventor: OLSSON BO
IPC: A01G23/091
Filed: 1981-11-19
Abstract: The present invention relates to a device for effecting the return movement of a chain saw guide bar (3) on a gripping member (1). Known devices of this type have either a limited life or are expensive to construct. Moreover, they have deficiencies in their use. A characteristic of the present invention is that the pressure-medium cylinder (5), which effects the pivoting movement of the guide bar during sawing, is connected at its end remote from the piston rod (6b) to an accumulator (13) charged with pressure medium. <IMAGE>
Patent DE-3148142-A1 (DE)
Title: Vacuum switch
Inventor: WOLF JOHANN
IPC: H01H33/666
Filed: 1981-12-04
Abstract: Switch contacts (2, 4), of which one is moving, are arranged in the vacuum of a switch chamber (12). According to the invention, a vacuum-proof and moving part of the switch chamber wall, which can preferably be a spring bellows (6), at the same time forms a part of the housing (16) of a pressure chamber (18) which contains a pressure medium whose pressure is provided to control the moving contact (4). A simple switch drive is obtained using this design, preferably for vacuum switches in the medium-voltage range. <IMAGE>
Patent DE-3148470-A1 (DE)
Title: Hay-drying system consisting of a hay drier and of a hay-drier float
Inventor: KOCH OTTO
IPC: A01F25/12
Filed: 1981-12-08
Abstract: The invention relates to a hay-drying system, consisting of a hay drier and of a hay-drier float, and is aimed at providing a hay-drying system, especially a hay drier, which can be adapted easily to different conditions, in particular the length of the mown material, and furthermore can be stowed in an especially space-saving way when not in use. For this, it is proposed, according to the invention, to construct the hay drier from two side parts having a plurality of crossbars which are attached above one another and between which carriers for the mown material equipped with noses or grooves engaging round the crossbars are mounted displaceably and removably. <IMAGE>
Patent DE-3151852-A1 (DE)
Title: Winter sports glove
Inventor: AUMUELLER LEONHARD
IPC: A41D19/01
Filed: 1981-12-30
Abstract: A glove for winter sports has along the narrow side (4) a closure (5) which separates at least the covering (2) and extends at least over the non-tapered length (6) of the glove. The closure is preferably a slide fastener. It covers the covering (2) and the lining (3) so that the glove can easily be opened over its entire length and folded back in order to take it off. <IMAGE>
Patent DE-3206354-A1 (DE)
Title: Device for modifying or repairing non-visible conductor-track patterns on multilayer printed-circuit boards
Inventor: KITTEL HORST DIPL ING
IPC: B23B47/24
Filed: 1982-02-22
Abstract: The device for modifying or repairing non-visible conductor-track patterns on multilayer printed-circuit boards, conductor tracks being cut by drilling or milling, ensures that only the desired conductor track is cut, in that an indicator is connected to the tool, which indicator is also electrically connected to the conductor track to be cut or to the conductor track located underneath the conductor track to be cut and, when the tool touches the relevant conductor track, generates a signal which triggers either an optical or an acoustic indication or stops the drive or the feed.
Patent DE-3210253-A1 (DE)
Title: Window construction
Inventor: LANGENHORST GUENTER
IPC: E06B3/263
Filed: 1982-03-20
Abstract: The invention relates to a window construction, consisting of a fixed frame insertable into a wall aperture and of an aluminium casement mounted in the fixed frame. The fixed-frame profile has on its outside a case profile which overlaps on to the wall limiting the wall aperture and which possesses on its inside a receiving groove for a sealing profile bearing against the wall. Furthermore, fastened to the inside of the fixed-frame profile is a lining strip which carries on the same side as the inner space a heat-insulating facing profile made of wood. Also fastened to the casement profile on the inside is a lining strip which itself carries on the same side as the inner space a heat-insulating facing profile made of wood. Moreover, this lining strip forms at the same time a glass-holding strip. This window construction is characterised by optimum heat insulation. <IMAGE>
Patent DE-3217012-A1 (DE)
Inventor: NARR BERTHOLD DIPL CHEM DR
IPC: C07D413/12
Filed: 1982-05-06
Abstract: This invention is directed to novel benzoxazin-2-ones of the formula <IMAGE>  (I)  wherein A is a sulfur atom or an SO, SO2, R-N=S, or R-N=SO2 group where R is a hydrogen atom or an acyl group; D is an alkylene group; R1 is an alkyl, phenylalkyl, cycloalkyl, or phenyl group; R4 is a hydrogen atom or an alkyl group; R5 is a hydrogen or halogen atom or a nitro or alkyl group; and R6 is a hydrogen or halogen atom or an alkyl group, having valuable pharmacological properties, particularly an antithrombotic activity. The compounds of Formula I may be prepared by the methods used for analogous compounds.
Patent DE-3217917-A1 (DE)
Title: Reversing machine for tubular articles
Inventor: BIEDERMANN WERNER
IPC: D06G3/02
Filed: 1982-05-12
Abstract: A machine for reversing flexible tubular articles, especially articles of clothing sewn on the left side, such as neckties, belts, sleeves or the like, is proposed. This machine does away with a manual reversing or carding operation. For this purpose, it possesses at least one receiving device movable respectively through one of the articles and having a holding device at the free end for retaining the article at the end remote from the entry orifice of the said article. It possesses, furthermore, a reversing device which consists of at least two oppositely moving conveying elements. The receiving device together with the respective article can be moved in between these conveying elements until these pull the article through between them away from the receiving device. At the same time, the receiving device is moved back away from the conveying elements at the conveying speed of the latter, the fastening end of the article being retained.
Patent DE-3218220-A1 (DE)
Title: Electrostatic copier
Inventor: BOECK GEORG
IPC: G03G15/00
Filed: 1982-05-14
Abstract: For the purpose of producing copies of varying format, an electrostatic copier has a plurality of storage containers (22, 36) for sheet-shaped copy carriers. At least the storage container (22) for the largest copy carrier format is arranged, for the purpose of saving space, perpendicularly on the copier and equipped with a suction extraction device (24) which engages through a lateral opening of the storage container. The storage container (22) can be brought into a horizontal position, its surface (22c) serving as a bearing surface for feeding in copy carriers by hand. A second storage container (36) is arranged in an essentially perpendicular position above the first storage container (22). <IMAGE>
Patent DE-3223311-A1 (DE)
Title: Valve for the feed of compressed air to a container
Inventor: GEROLD JOSEF
IPC: F16K17/02
Filed: 1982-06-22
Abstract: In a valve for the feed of compressed air to a container, which automatically shuts off the feed of compressed air to the container in the event of a pressure drop, a spool is provided which is moved by load into a closed position and can be displaced from outside into an open position. In the open position, the spool applies a connecting passage to a source of compressed air, which connecting passage is connected to the atmosphere in the closed position. The compressed air fed displaces the valve spool from a pre-loaded closed position into an open position. In this open position, the valve spool clears a connecting passage between the source of compressed air and the container. Furthermore, a device acted upon by the container pressure is provided which holds the spool in its open position, against the closing force, after the pressure build-up in the container.
Patent DE-3227858-A1 (DE)
Title: Spring-mounted vehicle seat
Inventor: BUSSE FRITZ DIPL ING
IPC: B60N2/50
Filed: 1982-07-26
Abstract: A spring-mounted vehicle seat has a seat frame which is guided by scissor-type levers and is resiliently supported relative to a bottom frame by at least one shock absorber. Its prestress is automatically variable by means of a control lever as a function of the oscillation stroke of the scissor-type levers. Said control lever is connected with pivoting movement on one side to the one scissor-type lever and on the other side to one end of the shock absorber. By means of a cam control, the setting angle of the control lever is varied in the oscillation stroke and the variable precompression of the shock absorber is effected via the coupling. To reduce the kinematic friction losses of the scissor-type system, according to the invention both scissor-type levers are connected with pivoting movement to the seat frame and the bottom frame respectively via crank arms in the same manner on each side. The one crank arm serves at the same time in a double function with a coupling of the other clamping end of the shock absorber as an oscillation stroke-controlled second control lever in interaction with the first control lever in order to achieve complete prestress regulation of the shock absorber which is automatic on each side.
Patent DE-3232086-A1 (DE)
Title: Implement combination for soil working and seedbed preparation
Inventor: WEICHEL ERNST
IPC: A01B35/30
Filed: 1982-08-28
Abstract: The implement combination for loosening a consolidated arable land (E) into large clods (G) and for subsequent fine comminution (Kr) for the purpose of forming a seedbed (Sb) consists of an implement (2), for example a rotary harrow, which is equipped with rotating tines (20) and to the frame (18) of which the frame (3) of a layer grubber (21) having angular hafts (36) and loosening coulters (8), located in front of the tines (20) in the direction of travel (F), is connected in the rear part by means of straps (34, 35). There also follows a roller unit (41) which smooths or similarly works the seedbed (Sb). <IMAGE>