baber/WOPTO huggingface dataset:
Patent DE-3638687-A1 (DE)
Inventor: PALTAUF FRIEDRICH
IPC: C07F9/10
Filed: 1986-11-13
Abstract: Single-stage process for preparing mixed-substituted enantiomerically pure 1,2-diacyl-sn-glycero-3-phosphocholines of general formula I <IMAGE>  I  in which R1 and R2 are different and independently of each other denote a substituted or unsubstituted C1 to C24-alkyl or C3 to C24-alkenyl radical, by reacting 1-0-triphenylmethyl-2-acyl-sn-glycero-3-phosphocholine of the general formula    <IMAGE> II  in which T denotes a substituted or unsubstituted triphenylmethyl group and R2 is as defined above, with a reactive carboxylic acid derivative of the general formula R1-CO-X III in which R1 is as defined above and X denotes a carboxylic acid radical, a carbonic acid radical, a sulfonic acid radical or the radical of a fused or unfused five-membered heterocycle having at least two N atoms in the ring, in the presence of a protonic acid, of a Lewis acid or of adducts thereof with electron donors, and isolating the resulting compounds of the general formula I from the reaction mixture.
Patent DE-3641775-A1 (DE)
Title: Turnstile for letting people through
Inventor: WANZL RUDOLF
IPC: G08B13/00
Filed: 1986-12-06
Abstract: The invention describes a turnstile (1) for letting people through. Turnstiles (1) of this type can pivot about a fixed point, with the result that, in the pivoted-out state, a wide passage is provided. In self-service shops, for example, such passages are used for transporting goods. Meanwhile, resourceful customers have discovered that, by pivoting the turnstile (1), they can use the resultant passage in order to precipitate their exit from the interior of the shop. In some circumstances, this is also done with dishonest intent. In order thus to counteract the risk of theft, the invention proposes to arrange, on the turnstile (1), an alarm installation (18) which is put into action if somebody pivots the turnstile (1) open without authorisation. <IMAGE>
Patent DE-3642738-A1 (DE)
Title: Fuel injection pump of the distributor type for internal combustion engines with quiet-idle injection at low idling speed
Inventor: HAAS ECKHARD DIPL ING
IPC: F02M41/12
Filed: 1986-12-13
Abstract: The invention relates to an injection pump with quiet-idle injection with a distributor-pump plunger (3), which delivers fuel from the pump internal chamber (2) to the individual injection lines of the engine, with a control slide valve (12) sliding on the distributor-pump plunger (3), with a spill bore (13) on the distributor-pump plunger, which bore is fitted angularly offset to the control bore (14) and lies in the area of the control slide valve. The control slide valve (12) has a radial throttle bore (22) with a blow-off valve (25) fitted thereon, the housing of which is connected to the pump internal chamber (2). By rotation of the control slide valve, the pressure chamber (5) is connected to the pump internal chamber (2) due to the bores (13) and (22) and the blow-off valve (25) coinciding so that the pressure chamber (5) is relieved during the effective stroke phase. In this way, a retarded or multiple opening of the injection nozzle needle at low idling speed is achieved, which produces quieter engine running. When the idling phase is exceeded, the fuel flow from the pressure chamber to the pump internal chamber is interrupted by turning back of the control slide valve (12) (Fig. 3). <IMAGE>
Patent DE-3643298-A1 (DE)
Title: Method and device for transporting insulin ampoules
IPC: B65D81/18
Filed: 1986-12-18
Abstract: Published without abstract.
Patent DE-3702114-A1 (DE)
Title: Electromagnetic clutch
Inventor: HAHN WINFRIED
IPC: F16D27/04
Filed: 1987-01-24
Abstract: A clutch has a clutch part (12) which can be moved with a friction surface (16) against a clutch surface (17) of a clutch bell (2) by the force of an electromagnet (18). Ramps (19, 20) on the clutch part (12) and a contact part (7) have the effect that the friction as the coupling operation begins and the resulting rotation of the clutch part (12) relative to the contact part (7) lead to an axial displacement of the clutch part (12) in the coupling direction and, as a result, to self-reinforcement of the coupling force. <IMAGE>
Patent DE-3710224-A1 (DE)
Title: Process and device for determining currents of air masses
Inventor: SASS WOLFGANG DIPL ING
IPC: G01F1/698
Filed: 1987-03-27
Abstract: In a process and a device for measuring currents of air masses, it is proposed to heat a resistance measurement element to a higher temperature and then evaluate the time duration of its cooling-off phase between two temperature threshold values as a measure of the current of air mass. The heating preferably takes place to a constant higher temperature, which corresponds to an upper threshold value of the two temperature threshold values. By evaluating the cooling-off phase, a condition is achieved in which the resistance fluctuations caused by the production remain without influencing the measurement result. During the cooling-off phase, the resistance measurement element has only a negligible constant measurement current passing through it, which by determining the voltage drop makes it possible to determine the operating temperature of the resistance measurement element by means of the resistance/temperature characteristic.
Patent DE-3716750-A1 (DE)
Title: Method of constructing and sinking foundation structures
IPC: E02D23/14
Filed: 1987-05-19
Abstract: Method of constructing and sinking foundation structures, in which the walls of a caisson are constructed near the earth's surface in a sliding or climbing formwork and are lowered continuously or step by step into foundation trenches which are excavated at the same time in the protection of a supporting liquid. The method is especially suitable for constructing foundation structures which are to be sunk to considerable depths in water-bearing soil strata.
Patent DE-3720563-A1 (DE)
Title: Packaging element having a variety of uses as a swimming aid and a toy (figure)
Inventor: HOPFENSITZ ERIKA
IPC: B65D81/36
Filed: 1987-06-22
Abstract: Published without abstract.
Patent DE-3721864-A1 (DE)
Title: High-reactance transformer (high-leakage-reactance transformer)
Inventor: MERK HANS-DIETER
IPC: H01F38/08
Filed: 1987-07-02
Abstract: A high-reactance transformer consists of a core, a primary coil, an air gap, and a secondary squirrel-cage winding in the form of an organic substance for the purpose of forming eddy currents in the cells and between the cells of this organic substance. This organic substance can be the body or a part of the body of a human being or an animal and is arranged in the air gap of the high-reactance transformer. In order to make possible small, handy high-reactance transformers despite large-area treatment applications, a multiplicity of high-reactance transformers is placed side by side. In order to facilitate the treatment of the human being, the high-reactance transformer or the multiplicity of small high-reactance transformers is provided in or around or over or under or behind a mattress, couch, deck chair, armchair, chair, cushion or the like, depending on the purpose of the application and the kind of treatment of the human being or of the body part of the human by means of pulsating magnetic fields to form eddy currents in and between the cells.
Patent DE-3725946-A1 (DE)
Inventor: SCHLEICHER WERNER DIPL BIOL DR
IPC: A23K40/30
Filed: 1987-08-05
Abstract: The invention relates to a stabilised feed additive, in particular containing zinc bacitracin, and processes for its preparation.
Patent DE-3728216-A1 (DE)
Title: Elastomeric composition based on polymerisable polyether materials
Inventor: HUEBNER HEIJO DR
IPC: C08G73/04
Filed: 1987-08-24
Abstract: An elastomeric composition based on vulcanisable polyether materials contains or comprises, in ready vulcanised and polymerised form, from 17.5 to 75% of polyether, from 4 to 35% of pyrogenic and/or precipitated silicic acid having a BET surface area in the range from 25 to 600 m<2>/g, and from 1 to 15% of catalyst, based on the amount of polyether, and any remainder comprises conventional fillers and additives.
Patent DE-3730138-A1 (DE)
Title: Method of dynamically controlling the reactive power of compensation installations
Inventor: HOFFMANN REINHARD DIPL ING
IPC: G01R21/00
Filed: 1987-09-05
Abstract: In a method of rapidly compensating for the reactive power demand of a reactive-inductive load (R-L load) presented by an AC controller (control angle  alpha ) (for example a resistance welding machine) by means of a compensation installation whose capacitative fundamental-mode reactive power is dynamically adjustable by means of a semiconductor or a semiconductor controller, the object is to control a reactive power compensation installation in such a way that the inrush of the supply voltage when operating with R-L loads having a surge-like reactive power demand (e.g. resistance welding machines) is reduced or avoided. This is achieved in that the reactive power QK of the load known at the instant of the start of the current flow (control angle  alpha ) is the reactive power desired value QS of a capacitatively acting load K (compensation installation), which can be suitably adjusted, operated in parallel to the R-L load. <IMAGE>
Patent DE-3732114-A1 (DE)
Inventor: SCHULZE JOACHIM DR
IPC: C04B24/02
Filed: 1987-09-24
Abstract: New additives for reducing the shrinkage of building materials containing Portland cement from the group of alkanediols with terminal OH groups of the general formula CnH2n(OH)2 (5 </= n </= 10) are provided. The additives according to the invention are distinguished by easy processability and above all by the fact that they reduce the extent of shrinkage and act even in the presence of other concrete additives.
Patent DE-3732226-A1 (DE)
Inventor: GAGNON RONALD W
IPC: B66B23/02
Filed: 1987-09-24
Abstract: An escalator includes a pair of pulleys (32, 34) that transmit a drive force to a double-sided toothed belt (14) which in turn transmits the drive force to a series of connected plastic links (16), each link being connected to an escalator step (18). The belt has a plurality of contoured teeth depending from each side of the belt, the length of one side of the belt engaging the contoured teeth of the pulleys (32, 34) and the teeth of the other side of the belt engaging the contoured teeth of the links (16). The plastics links are reinforced to withstand bending moments as the link transfers driving movement to the step. <IMAGE>
Patent DE-3734462-A1 (DE)
Title: Gear mechanism, particularly a spur-wheel planetary mechanism
Inventor: UHLMANN ALFRED
IPC: F16H1/28
Filed: 1987-10-12
Abstract: In order, with a gear mechanism, especially a spur-wheel planetary mechanism, to be able to set the intermeshing straight-toothed spur-wheels without backlash and to be able to reset them repeatedly during subsequent use to give the desired freedom from backlash, without disassembling the mechanism, each spur wheel 5, 9 has a tapered outer surface and the outer surfaces of the spur wheels 5, 9 are shaped with opposite tapers, at least one of the two spur wheels 5, 9 being axially displaceable towards the other spur wheel and being fixable in its respective axial position, at least against an axial movement away from the other spur wheel. In order to simplify subsequent resetting, the shaft 6 on which the axially displaceable spur wheel 5 is secured is mounted rotatably in a bearing bush 30 which is supported in axially displaceable fashion in a housing part 2 and can be fixed in its respective axial position against an axial movement relative to the housing part 2. The planet wheels 9 are individually adjustable in the axial direction relative to the planet carrier 7 and can be adjusted together in the axial direction by axial displacement of the planet carrier 7, the shaft 8 of which is rotatably mounted in an axially displaceable bearing bush 37. <IMAGE>
Patent DE-3741054-A1 (DE)
Title: Belt conveyor having a linear drive
Inventor: KETTERER HANNO
IPC: B65G23/23
Filed: 1987-12-04
Abstract: A belt conveyor intended for the transport of bulk material is equipped with a decentralised drive system which comprises linear motor drives arranged on the underside of the conveyor belt and permanent magnets integrated over the length of the conveyor belt in the drive and guide rail of the latter. By this means, a drive system having a rectilinear movement of the conveyor belt is provided, so that the latter can be satisfactorily operated evenly and uniformly, with and without loading even over long conveying distances. In particular when the permanent magnets are assigned to a web-shaped guide element arranged below the conveyor belt, such a belt conveyor can be guided satisfactorily about curves so that the subdivision and frequent construction of transfers, which are at present still necessary, are not required. Rows of permanent magnets and vertically positioned stators or linear motors additionally placed in the belt cover make it possible, furthermore, for the remaining belt to lift up off the supporting rollers so that floating of the belt on a magnetic-force cushion leads to a low-friction operation. <IMAGE>
Patent DE-3742959-A1 (DE)
Title: Arrangement for receiving the components of a VDU-based workstation
Inventor: BARTHOLOMAEI GUNTHER
IPC: F16M11/04
Filed: 1987-12-18
Abstract: A description is given of an arrangement for receiving the components of a VDU-based workstation and integrating them into an arrangement of desks of common types, comprising height-adjustable and laterally pivotable supporting elements for receiving a visual display unit and a keyboard. The arrangement, termed equipment tower 1, consists of three assemblies 2, 3, 4 which can be put together and is adaptable to the height of conventional desks 5. The equipment tower is constructed as a variable, add-on unit for frontal or lateral positioning against the desks 5 and consists of a baseplate 2, a height-adjustable housing 3 and a height- and laterally adjustable system column 4. The equipment tower 1 is suitable for receiving a universally usable VDU-based workstation and can be fitted, in particular as a multi-purpose unit, into a grouping of a plurality of desks of variable configuration. <IMAGE>
Patent DE-3743444-A1 (DE)
Title: Process and installation for the manufacture of steel bars (steel rods)
Inventor: FLAXA VOLKER DR ING
IPC: B21B43/02
Filed: 1987-12-22
Abstract: The invention is applicable to small- and medium-section rolling mills. The invention relates to the manufacture of steel rods from microalloyed billets with improved strength properties and straightness by means of defined rolling process steps in the 1st and 2nd forming stage, in different temperature ranges and forming degrees, with intermediate cooling of the intermediate cross-section, and also to the installation for carrying out the rolling technology.   The essential features in this respect are the arrangement, design and functioning of an intermediate cooling bed between the roughing and finishing stands.
Patent DE-3812634-A1 (DE)
Inventor: FAHN RUDOLF DIPL CHEM DR
IPC: B22C9/00
Filed: 1988-04-15
Abstract: A process for the production of moulds from clay-bonded moulding sand for gray cast iron, malleable cast iron, spheroidal cast iron and heavy metal castings is characterised by the combination of the following steps: (a) production of a mould from a moulding sand which is essentially free of lustrous carbon formers and pyrolytically decomposable moulding sand containing organic components and (b) application of a mould dressing which contains the customary refractory inorganic components and is essentially free of pyrolytically decomposable organic components, at least to those surfaces of the mould which come into contact with the cast metal.
Patent DE-3813670-A1 (DE)
Title: Coupling between two machine parts
Inventor: HEEL HELMUT
IPC: B23B31/26
Filed: 1988-04-22
Abstract: To couple a tool foot (12) to a spindle (10), a centring spigot (21) of the tool foot (12) engages in a recess in the spindle. Clamping levers (30) are mounted in the recess in the spindle in such a way as to be pivotable about tangential axes (33, 29). These clamping levers can be pivoted radially outwards by a clamping-mandrel unit (45) and, during the process of pivoting radially outwards, then turn into engagement by means of clamping surfaces (34) with a shoulder surface (35) of an inner undercut (36) in the centring spigot. The clamping levers (30) are supported by means of bearing surfaces (33) on a supporting surface (29) integral with the main body (11) of the spindle (10) and are thus supported in such a way that they can pivot. <IMAGE>
Patent DE-3814698-A1 (DE)
Title: Remotely controlled, motor-adjustable subassembly
Inventor: LACHNER HANS DIPL ING
IPC: B25J3/04
Filed: 1988-04-30
Abstract: The invention relates to a remotely controlled, motor-adjustable subassembly, especially a manipulator arm, consisting of a multiplicity of sections (1) mutually connected to form an articulated chain, the sections being able to be pivoted with respect to one another by means of controllable positioning motors (3) assigned to the joints (2) and having a manually adjustable control subassembly duplicating the motor-adjustable subassembly at a reduced scale, to whose joints (2') distance transmitters are assigned instead of positioning motors (3), said transmitters controlling the positioning motors (3) in such a way, that the movements of the motor-adjustable subassembly coincide with the movements of the control subassembly. In order that such a subassembly is controlled in the longitudinal region exclusively in the respective optimal position when using very long multi-element articulated chains, the invention proposes that the motor-adjustable subassembly and correspondingly also the control subassembly have a defined starting position in which the positioning motors (3) and the distance transmitters (3') can be actuated in opposing directions from their starting position, the joints (2') of the control subassembly having pretensioned elastic reset means assigned to them, which load the control subassembly in the direction of the starting position after each deflection. <IMAGE>
Patent DE-3815809-A1 (DE)
Title: Gas-spring actuation lever mounting device - uses plastics type bearing block with semicircular shaped larger periphery
Inventor: KABAYA SATOSHI
IPC: A47C3/026
Filed: 1988-05-09
Abstract: The supporting device includes a bolt (43) which is pivot-mounted in a bearing block (7), the latter being fixed on a base frame (6) on base (B). The actuating lever is mounted at its bottom end on the bolt (43) which is arranged normal to the lever. The bearing block (7) is made of a plastics material or synthetic resin, and includes a semi-circular shaped larger periphery. A central region of at least one edge of the orifice in the encirclement (clamping) slot of the bearing block (7) is provided with a slot for accommodating the actuation lever as the latter is pivotted to and fro.
Patent DE-3817262-A1 (DE)
Title: Control apparatus for setting the speed of rotation of rotary sprinklers in trickling filters and sewage treatment plants
Inventor: BOTSCH BERTRAM DIPL ING
IPC: C02F3/00
Filed: 1988-05-20
Abstract: The invention relates to a control apparatus for setting the speed of rotation of a rotary sprinkler, driven by hydraulic reaction, in trickling filters of sewage treatment plants, the reaction being produced by the waste water exiting from orifices in the distributor tube. On at least one distributor tube (6), in the vicinity of at least some of the outlet orifices (7), there is arranged a baffle plate (8) to be able to pivot or fold in two positions in bearings (10) or hinges and which guides the exiting jet (22) either in the direction (9) of rotation or opposite to the direction (9) of rotation. <IMAGE>
Patent DE-3817402-A1 (DE)
Title: Optical encoding method and associated read-out method
Inventor: LAUCHT HORST DIPL ING DR
IPC: G06K7/12
Filed: 1988-05-21
Abstract: Published without abstract.
Patent DE-3818743-A1 (DE)
Inventor: FUCHS CHRISTIAN
IPC: B60T15/22
Filed: 1988-06-01
Abstract: In a trailer control valve for commercial-vehicle brake systems actuated by pressurised fluid, at least one control piston (11; 17) and one reaction piston (25) are provided. The reaction piston exposed to the pressure let out by the valve carries a driver collar (35) which is longitudinally adjustable on it and, in the case of a reaction movement of the reaction piston (25), comes to bear against a spring (41) supported on the housing. The advance of the trailer control valve can be adjusted in accordance with the extent of the bearing of the spring achievable by means of the driver collar (35); after exceeding a force which can be predetermined by the spring (41), the reaction piston comes to rest against the control piston, the advance thereby being ended and the pressure let out subsequently being proportional to the pressure fed in. The extent of the advance can be adjusted by means acting from outside on the driver collar (35). <IMAGE>
Patent DE-3828127-A1 (DE)
Title: Syringe, especially for medical use
Inventor: BADER MOHANDES
IPC: A61M5/315
Filed: 1988-08-18
Abstract: Syringe, especially for medical use, having a barrel (2) which has an opening (7) on its front end (5) and in which a piston (12) is movable. The piston rod (13) of the piston (12) projects from the rear end of the barrel (2), a needle, especially an injection needle or a similar aspirating and/or administering member being attachable or insertable in a fluid-tight manner on or in the opening (7) formed in the front end (5) of the barrel (2). The piston (12) and/or the piston rod (13) is allocated with locking means (19, 20, 22, 23; 41) with which the maximum injection volume can be administered once only. <IMAGE>
Patent DE-3830499-A1 (DE)
Title: Microwave oven having one heating chamber
Inventor: XU BINGHUI DIPL ING
IPC: H05B6/76
Filed: 1988-09-08
Abstract: A microwave oven having one heating chamber (1) which has an electric load whose connecting cable (3 and 3', respectively) is passed out through an opening in the wall (2) of the heating chamber. To dampen the electromagnetic energy which is radiated through the connecting cable (3, 3'), the connecting cable is passed through a sheet-metal body (4) which consists of a plurality of conductor pieces (I, II, III) which have a length of  lambda /4, are connected in series and have alternately high and low characteristic impedance of the line. The sheet-metal body (4) is connected to the heating chamber wall (2) in a contact-making or conducting manner. <IMAGE>
Patent DE-3831313-A1 (DE)
Title: Underground sprinkler housing for buried sprinkler pipe systems
Inventor: BALASUS DENNIS
IPC: B05B15/74
Filed: 1988-09-15
Abstract: Published without abstract.
Patent DE-3831799-A1 (DE)
Title: Adder circuit in 51111 code
Inventor: MERKLE PAUL
IPC: G06F7/50
Filed: 1988-09-19
Abstract: The adder circuit according to the subject of the invention also processes the value 5 using a dual full adder (4), and the value 1 using a square adder circuit (1), and cannot process a possible carry simultaneously. The maximum one's sum (8) is processed using circuit (3) and OR circuit (43). The size of the main circuit (1) was thus reduced to 15 AND circuits each with two inputs, and 12 OR circuits each with two inputs. In the adder circuit type B1, the size of the main circuit (1b) was further reduced by arranging a one-upwards shift circuit (5). <IMAGE>