baber/WOPTO huggingface dataset:
Patent DE-3644429-A1 (DE)
Title: Electrohydraulic control cylinder
Inventor: KOPPERS MANFRED ING GRAD
IPC: F15B9/12
Filed: 1986-12-24
Abstract: A spindle 24 is mounted by a threaded portion 23 in a spindle nut 19 which is resiliently clamped, so as to be axially movable to a limited extent, in the piston 4 of the control cylinder 1. The threadless length portion 25 of the spindle 24 coupled to an electric step motor M is provided with conical faces 28, 29 which act on radially displaceable resetting valves 13, 14 which are integrated into the lines 9, 10 between a pressure source P and the working spaces 7, 8 of the control cylinder 1. Stresses on the piston rod 3, causing displacement of the piston rod 3 and/or the spindle 24, lead, in principle, to the working spaces 7, 8 being correspondingly pressurised via the resetting valves 13, 14, which can be displaced between a minimum and a maximum position, and the piston rod 3 always being returned to the preset desired position. <IMAGE>
Patent DE-3705742-A1 (DE)
Title: Tunnel furnace
Inventor: STROHMENGER WERNER
IPC: F27B9/02
Filed: 1987-02-23
Abstract: In a tunnel furnace, the transport carriages (1) for the charge (6) can be moved backwards and forwards in a stepped manner and the charge (6) can be set down on rack devices (8) during the backward movement. As a result, the energy expenditure is reduced. <IMAGE>
Patent DE-3708503-A1 (DE)
Title: Vacuum cleaner mouthpiece
Inventor: HELFRICH THOMAS DIPL ING
IPC: A47L9/02
Filed: 1987-03-16
Abstract: Vacuum cleaner mouthpieces are equipped with a suction connector which is tiltably articulated on the mouthpiece housing. Rotatably mounted in its suction connector is a connection piece for a suction pipe. The connection piece is secured in the axial direction in the suction connector by means of a catch connection. The catch connection is obtained by means of the spring tongues which are formed by longitudinal slots in the wall of the connection piece. In such longitudinal slots, dirt deposition can occur, leading to a narrowing of the cross-section. To avoid such longitudinal slots, the wall of the connection piece is constructed flexibly on both sides of radially outwardly projecting catch elements by means of radial recesses extending over the entire circumference. This results in a completely smooth wall in the interior of the connection piece, which provides no possibility for dirt deposition. <IMAGE>
Patent DE-3711479-A1 (DE)
Title: Sealing element for creating a sealing connection between two units
Inventor: HALASSEK GUENTHER
IPC: F16L39/00
Filed: 1987-04-04
Abstract: A sealing element (9, 10, 11) arranged between the adjoining sealing surfaces (3) of two hydraulic units (1 to 2) is presented, with at least two pressurised medium channels (5, 6, 7) passing through the sealing surface. The sealing element consists of a carrier plate (9) having bores (10) which are in alignment with the pressurised medium channels (5, 6, 7). Sealing elements (11) which seal the pressurised medium channels from the outside are also provided on the plate. Because of the seals being arranged on the carrier plate (9), they can all be fitted simultaneously in one operation. <IMAGE>
Patent DE-3712064-A1 (DE)
Title: Apparatus for machining workpieces, in particular wafers, in a semiconductor production clean room
Inventor: PRETTL ERHARDT
IPC: H01L21/677
Filed: 1987-04-09
Abstract: An apparatus is used to machine workpieces, in particular wafers (19), in a wet cell in a semiconductor production clean room (10). A handling device (39) has a multiplicity of movement units (49, 54) for one movement axis (55, 56) in each case. The movement units (49; 54) comprise in each case a base section (40, 41, 42; 51), a drive element (47, 48; 52) and a travelling part (46, 50, 60) which can be moved relative to the base section (40, 41, 42; 51) by means of the drive element (47, 48; 52). Of the travelling parts, one (60) is provided with a gripper (61) for gripping the wafer (19). Situated in the working area of the handling device (39) is a machining device with stacking stations (20) and processing stations, in particular baths (14, 14a). In order to provide an apparatus which is as simple as possible and is optimised from the point of view of particle deposition and which ensures as great a freedom as possible from particles in the movement area of the wafer (19), the stacking stations (20) and the machining stations are situated at least approximately in one plane and the base sections (40, 41, 42; 51) and the drive elements (47, 48; 52) of all the movement units (49; 54) are arranged below the plane (Figure 1). <IMAGE>
Patent DE-3715487-A1 (DE)
Inventor: VOEST WALTER
IPC: C08K7/28
Filed: 1987-05-09
Abstract: In order to produce lightweight construction elements, for example in board form, which have low density, high mechanical strength and good insulation properties, 70-95 parts by weight of open-pore expandable glass beads having a particle fraction of from 0.2 to 20 mm and a density of between 0.2 and 0.55 g/cm<3> are mixed with 4-30 parts by weight of an epoxy binder which comprises bisphenol resin to which 0.5-5 parts by weight of a polysiloxane have been admixed, and an amine curing agent. During this process, the expandable glass beads are wetted on their surface. They are introduced into a female mould corresponding to the shape of the construction element, and heat is then supplied, causing reaction of the amine curing agent to react with the polysiloxane and the epoxy resin and formation of an epoxide foam between the expandable glass beads.
Patent DE-3718698-A1 (DE)
Title: Hydraulic actuating arrangement
Inventor: RICHTER BERND DIPL ING DR
IPC: F15B7/00
Filed: 1987-06-04
Abstract: A hydraulic actuating arrangement with in each case a master unit and slave unit (1, 2) consisting of a piston/cylinder unit as well as a line system (3) connecting these units, the components (1-3) having hollow spaces (18, 20, 27) which contain a hydraulic working medium and are operatively connected to one another for the transmission of pressure. In order to ensure as advantageous an assembly of such a hydraulic actuating arrangement as possible without the risk of trapping air as well as with a large degree of leakage protection, the hollow spaces (18, 20, 27) of the components (1-3) are to be sealed in the plane of the connecting points by a sealing means (21, 22; 24, 25) preventing a discharge of the hydraulic working medium from the components but permitting transmission of pressure. Here, these sealing means can be formed by diaphragms (21, 22, 24, 25) which are stretched in the connecting plane in front of the hollow spaces (18, 20, 27) of the components (1-3) and yield elastically or can be destroyed when pressure is admitted. <IMAGE>
Patent DE-3732083-A1 (DE)
Title: Device for the thermal cutting of thin workpieces of iron, steel or the like
Inventor: LOTZ HORST K
IPC: B23K7/00
Filed: 1987-09-24
Abstract: In a device for the thermochemical cutting of thin workpieces of iron, steel or the like, a cutting torch for especially thick workpieces, which is thus amply dimensioned, is arranged at an angle so that the cutting stream starts with the initial cutting at the bottom edge. The angle to the plane of the top or underside of the workpiece is very small and amounts to about 5@ and more. If need be, a device for iron powder addition, a preheating torch and a gouging torch are allocated to the cutting torch. <IMAGE>
Patent DE-3735634-A1 (DE)
Title: Flexible gasket material, in particular for cylinder-head gaskets
Inventor: ZERFASS HANS-RAINER DR
IPC: C09K3/10
Filed: 1987-10-21
Abstract: An asbestos-free flexible gasket material for, in particular, cylinder-head gaskets, exhaust flange gaskets and similar gaskets of, in particular, internal-combustion engines comprises a fibre nonwoven comprising fibrillated p-polyaramid fibres, non-fibrillated organic synthetic fibres having an increased heat resistance of above 200@C, an elongation at break of greater than 15% and a modulus of elasticity of less than 15 kN/mm<2>, and mineral fillers, organic binders and optionally mineral fibres, which has optionally been reinforced by metals and impregnated and has been produced by a papermaking process, has a flat course of the deformation characteristic line under pressure loading during installation so that, in the case of gaskets made from this material, a sealing pressure matched precisely to the engine conditions can be set in the border region, in particular between combustion chamber openings and the remainder of the surface. <IMAGE>
Patent DE-3740570-A1 (DE)
Title: Disc flywheel
Inventor: OHTSUKA KIYOAKI
IPC: F16D35/00
Filed: 1987-11-30
Abstract: A disc flywheel has an engine-side part and, rotatable relative thereto, a gear-side part, a sealed chamber arranged between the engine-side part and the gear-side part and filled with a viscous fluid, a number of trailing discs which are arranged in the chamber and which are connected in a drive-transmitting manner alternately to the engine-side and the gear-side part, an arrangement for determining a torque to be transmitted from an engine via the disc flywheel to a gear and an arrangement for connecting in a drive-transmitting manner the engine-side to the gear-side part depending upon the torque determined by the previously mentioned arrangement. In one embodiment, the disc flywheel has an actuation arrangement for increasing the torque transmitted via the trailing discs depending upon the torque determined by the said arrangement. In another embodiment, the disc flywheel has a movable part which is arranged between the engine-side and the gear-side part and can be connected in a drive-transmitting manner to one of the two parts, a number of trailing discs which are arranged in the sealed chamber and which are connected in the direction of rotation in a drive-transmitting manner alternately to the movable part and to the engine-side part or the gear-side part, and, arranged between the movable part and the engine-side part or the gear-side part, ... Original abstract incomplete.
Patent DE-3801788-A1 (DE)
Title: Apparatus for the separation and folding of tube-shaped blanks
Inventor: DEUTSCHBEIN ULRICH
IPC: B31B120/30
Filed: 1988-01-22
Abstract: What is described is an apparatus for the separation and folding of paper tubes (1) initially lying flat, with a magazine (3), open at the extraction end (2), for receiving a stack of blanks (1) lying flat in a first plane (4) and with drive devices for movable apparatus parts (W1, W2, A1, A2, A3, B). In order to make it possible with greater reliability to separate, guide and fold the blanks out of the state lying flat into the erected state, provision is made, according to the invention, for the magazine (3) to have, at the extraction end (2), on the one hand a stop (5) and on the opposite side a gap (6) which are both arranged approximately in alignment and in the first plane (4), and for providing at a distance from the extraction end (2) a movably driven transport-sucker arrangement (R, A3, B, A1, A2) and, at an angular distance, a roof-shaped second sucker arrangement (7). <IMAGE>
Patent DE-3803587-A1 (DE)
Title: Electrical switch, especially a steering column switch for motor vehicles
Inventor: BOHMHAUER ROBERT
IPC: B60Q1/14
Filed: 1988-02-06
Abstract: The subject matter of the invention is an electrical switch, especially a steering column switch for motor vehicles, having a switching lever whose handle part is constructed hollow and which has a base body on which two shells are mounted which are split along the switching lever. Such a construction makes design using plastics possible and makes it possible to manufacture the parts using simple tools.
Patent DE-3803937-A1 (DE)
Title: An active storage (accumulator) element in district heating grids having a steeply dropping load curve (characteristic)
Inventor: HOLLEMANN KARL
IPC: F24D11/00
Filed: 1988-02-06
Abstract: As represented in Figure 1, in the event of a steeply dropping load curve a ring line (main) having corresponding feed points has the effect of multiplying the energy-transporting capacity. The same effect can also be exercised by an active storage element if said store is placed at entirely specific points of this distribution system and is operated by sensible actuators. It is therefore possible for the maximum generator output to be more uniform, for the expenditure on planning to be substantially lower, and for the distribution costs to be substantially lower, since the load curve can be varied within wide limits and can be adapted to the local conditions. The load curve becomes the more favourable, the larger the temperature dynamics are permitted to be. <IMAGE>
Patent DE-3806795-A1 (DE)
Inventor: DEUTSCH JULIUS DR
IPC: C08G73/02
Filed: 1988-02-29
Abstract: Polymers consisting of a ligand containing carboxylic acid groups and optionally of at least one ion of an element of atomic numbers 21- 29, 42, 44 or 57-83 and optionally cations of inorganic and/or organic bases, amino acids or amino acid amides are valuable complexing agents and complexes for diagnostics.
Patent DE-3809038-A1 (DE)
Title: Method for producing optical waveguide connections
Inventor: FINZEL LOTHAR DIPL ING
IPC: G02B6/38
Filed: 1988-03-15
Abstract: In order to be able to produce optical waveguide connections in an efficient and cost-effective manner, a method has to be created by means of which the optical waveguide connectors can be produced with the aid of an automatic device and fitted with optical waveguides. In the method according to the invention a part of a silicon wafer (1) is glued to a sticky film (adhesive film) (2). Grooves (3), which are parallel to each other, are then etched into this part of the wafer (1). Thereafter, this part of the wafer (1) is sawn into individual base parts (4). The sticky film (2) having the base parts (4) is then glued to a plastic support (5). The cover parts (9) are likewise glued to a sticky film (2) and these are then glued to a plastic support (8). The two plastic supports (5, 8) are joined in such a manner that in each case one cover part (9) rests on a base part (4). One of the plastic supports (5, 8) has recesses (6) into which a drive (7) having spikes (18) can engage. As a result, the plastic supports can be positioned in a precise manner. The plastic supports are transported, for example, over two rollers (16, 17). Optical waveguides (11, 12) are pushed into each holder in such a manner that their end faces touch one another. A UV-curable adhesive is then introduced into the groove (3) of the holder (10). The holder, thus prepared, is subjected to UV radiation until the adhesive is cured. The method described can ... Original abstract incomplete. <IMAGE>
Patent DE-3809085-A1 (DE)
Title: Process for the preparation of an aqueous phosphorous acid low in heavy metals and arsenic
Inventor: BELTZ KLAUS DR RER NAT
IPC: C01B25/163
Filed: 1988-03-18
Abstract: The present invention describes a process for the preparation of an aqueous phosphorous acid low in heavy metals and arsenic from the secondary calcium phosphite which is obtained as byproduct in the preparation of hypophosphite in the form of a sludge. The process is characterised by the following technical measures, that the secondary calcium phosphite which is sparingly soluble in water is converted by the treatment with acid into a soluble primary calcium phosphite, the heavy metals and arsenic are converted into sparingly soluble compounds by the addition of an aqueous solution of alkali metal hexacyanoferrates and an aqueous solution of salts of polysulphanes and separated off from this solution and the phosphorous acid is subsequently liberated by means of sulphuric acid with precipitation of calcium sulphate.
Patent DE-3809373-A1 (DE)
Title: Multiple-folded card which can be erected to produce a three-dimensional effect
Inventor: YILMABASAR GALIP
IPC: B42D15/00
Filed: 1988-03-19
Abstract: The invention relates to a multiple-folded card which can be erected to produce a three-dimensional effect and can be used as a greeting card or as a medium for advertising messages. The inventive aspect resides in the fact that the card, although its parts are arranged in a plurality of planes, one behind the other, consists of a one-piece material and can be produced correspondingly cost-effectively.
Patent DE-3813962-A1 (DE)
Title: Two-stage gas pressure regulator
Inventor: GOTTFRIED JOSEF DIPL ING
IPC: G05D16/06
Filed: 1988-04-26
Abstract: From experience, pressure regulation out of a liquid gas container is intended always to be carried out in two stages, because of the risk of icing. Because of the provision of new guidelines, these pressure regulators must also now be protected by a safety shut-off valve against overpressure and, if necessary, also against lack of pressure. The fittings are arranged on the liquid gas containers under a cover hood with limited space. There is too little space for two pressure regulators and a safety shut-off valve. By means of the combination, according to the invention, of all three functional stages in one compact housing and, taking into account the physical gas properties, it has been possible to achieve a very abbreviated installation length by accommodating the safety shut-off valve stage and the first regulator stage under the diaphragm of the second regulator stage.
Patent DE-3819301-A1 (DE)
Title: Ball valve for shutting off pipes, having a floating spherical plug and radially displaceable seat rings
Inventor: BARMWOLDT MICHAEL
IPC: F16K5/06
Filed: 1988-06-03
Abstract: Ball valve (10) for the alternate shutting off of pipes (20), having a welded housing (11) with a floating spherical plug (12) welded in and having spherical seating surfaces (19) which are associated with the opposing pipe inlets (16) of the pipes (20). The floating spherical plug (12) can be moved axially into metal-to-metal sealing contact with the spherical seating surfaces (19). Assigned to the spherical seating surfaces (19) are axially displaceable seat rings (18) which can be moved freely in a radial direction. The seat rings (18) can be displaced axially with pressure rings (27, 28). <IMAGE>
Patent DE-3820996-A1 (DE)
Title: Sound absorbing device
Inventor: MENZEL SEN JOACHIM
IPC: E01F8/00
Filed: 1988-06-22
Abstract: Sound absorbing device by means of tensioned steel wires to rob the sound of its energy as a result of interference, diffraction, refraction and reflection according to the laws of physics and to transform (the sound) into other, partially inaudible, frequencies. The field of application is to be sought anywhere where sound has a disturbing effect over a large area. For example on motorways and railway routes.
Patent DE-3821275-A1 (DE)
IPC: B66F13/00
Filed: 1988-06-24
Abstract: In a method of producing stiffening profiles, particularly of reduced weight, for example for robot arms, transmission parts, bicycle frames, loading tailgates, crossing tailgates or the like, the stiffening profile is extruded in its contours and configurations at right angles to its plane and the stiffening profiles are then cut off in a required thickness.
Patent DE-3824424-A1 (DE)
Title: Power assisted steering for vehicles
Inventor: AHNER PETER DIPL ING
IPC: B62D5/04
Filed: 1988-07-19
Abstract: A power assisted steering functioning purely by means of an electric motor for motor vehicles has two brake discs (27, 38), coaxial with the steering column (10), which are driven at constant speed in opposite directions of rotation by an electric servo motor (12). A brake device (41), acting alternatively on either of the brake discs (27, 38) is coupled to the steering column (10), which device, as a function of the steering moment acting on the steering column (10), generates a brake torque on the brake disc (27, 38) rotating in the effective direction of the said steering moment, as a result of which the brake device (41) rotates in the same direction as the steering column (10) relative to the servo motor (12), thereby generating a torque acting in the same direction on the steering column. Such a power steering is compact and easily assembled and does not require any safety device such as known electrical steering boosters in order to avoid unwanted self-steering. In the event of a defect of the power assistance unit only a low resistance moment occurs, so that the vehicle can still be steered with a tolerable effort (Fig. 1). <IMAGE>
Patent DE-3824492-A1 (DE)
Title: Method and arrangement for the testing and remote-controlled activation of telephone connections
Inventor: BRUECKNER EGON
IPC: H04M3/30
Filed: 1988-07-20
Abstract: The invention relates to a method and an arrangement for the testing and remote-controlled activation of telephone connections from a test position PR in a fault clearance station. The subscriber end of the connection line AL houses a termination unit AE which contains a transmitter to transmit DC pulse strings to the fault clearance station, an evaluation circuit for the signals sent by the fault clearance station and at least one relay T which is controlled by the evaluation circuit and whose contacts TK1 and TK2 are inserted into the connection line immediately in front of the subscriber connection sockets B. To switch the relay T to the operating condition in which its contacts TK1, TK2 disconnect the subscriber equipment FeAp from the connection line AL/a, AL/b, a positive direct current is used which is fed from the test position PR via the test line PL into the connection line and the level of which is such that the negative voltage normally present on the connection line is over-compensated. <IMAGE>
Patent DE-3827960-A1 (DE)
Title: Device for the mutual alignment of two bodies
Inventor: RAPP LOTHAR
IPC: G02B6/38
Filed: 1988-08-17
Abstract: For the mutual alignment of the bodies, one of these bodies is positioned in a fixed location, while the other is fastened onto an adjusting spring which can be pivoted out of an initial position. The adjusting spring consists of an outer frame (1) with which it is to be fastened to a carrier (3), and of an inner frame (8) which accepts the mounting (17) of the movably positioned body. The inner frame (8) is suspended on the outer frame by means of coil springs (11 to 14) acting alternately as tension and compression springs. It can be deflected delicately towards one or the other side within a predetermined adjustment range in all three planes by means of positioning devices (4, 5). The accuracy of the deflection movement lies in the order of magnitude of 1  mu . The device is particularly suitable for the opposite alignment of optical waveguides as well as of optical waveguides and optical components. <IMAGE>
Patent DE-3828070-A1 (DE)
Title: Belt retractor for motor vehicle safety belts
Inventor: ERNST HANS-HELLMUT DIPL ING
IPC: B60R22/185
Filed: 1988-08-18
Abstract: Belt retractor made of plastic for motor vehicle safety belts, which are provided with a separate belt clamping device. The belt retractor has a U-shaped casing (2) and a roll (6) which is rotatably mounted between the two lateral limbs (4, 5) of the casing (2) on a steel needle (11) and is provided with a pin (9) which projects into a spring cartridge (10) which is fastened to the outside of a lateral limb (5) of the casing (2) and has a spring (12) for loading the roll (6) in the direction of retraction of the belt. The pin (9) locks into a blind hole (22) in the roll (6), while the spring cartridge (10) becomes locked to the lateral limb (5) of the casing (2). The steel needle (11) penetrates both the roll (6), the pin (9) of the latter, the second lateral limb (4) of the casing (2) and the outside wall (18) of the spring cartridge (10) and is provided at its two outside ends with a radially projecting head (28 and 29 respectively) in each case. This means that the roll (6) runs very smoothly and mounting of the belt retractor is very easy and can also be automated. <IMAGE>