baber/WOPTO huggingface dataset:
Patent DE-3705604-A1 (DE)
Title: Process for introducing reactants into a fluid stream
Inventor: STRUNK FALKO C DR ING
IPC: B01D53/50
Filed: 1987-02-21
Abstract: In a process for introducing a reactant into a fluid stream, the reactant is dissolved or suspended in a carrier liquid and injected into the fluid stream via a pressure-reducing element at a pressure and temperature such that at least part of the carrier liquid is flash-evaporated and by this means the remaining carrier liquid containing the dissolved or suspended reactant is disintegrated into very small mist droplets. In this manner, almost complete conversion of the reaction partners is achieved in a stoichiometric ratio within an extremely short time. The process is particularly suitable for denitration by ammonia or other ammonia sources and aqueous solutions thereof and for desulphurising flue gases from a furnace plant by means of lime or limestone.
Patent DE-3705909-A1 (DE)
Inventor: BRUNNER RUDOLF
IPC: H02K9/19
Filed: 1987-02-24
Abstract: In order that the heat produced in the stator can be dissipated deliberately and effectively, an annular heat transmission body (W) of metal is provided which touches the inner wall (35) of the housing (2) and the stator (11) at least in the region of its upper end, and forms a heat bridge from the stator (11) to the housing upper part (4). The heat transmission body increases the heat flow from the stator into the housing upper part, from which the heat can be dissipated very effectively via an external cooling fan (10), and simplifies the assembly of the pump. <IMAGE>
Patent DE-3714639-A1 (DE)
Title: Rotary-piston internal combustion engine
Inventor: PARIS HEINRICH
IPC: F02B75/02
Filed: 1987-05-02
Abstract: An internal combustion engine which in particular is intended to function on the four-stroke principle has a piston designed as disc-shaped rotary piston, in which lunate recesses serving as cylinder chamber are inserted, arranged symmetrically. The outside wall of these recesses is of epitrochoidal shape. Rotary pistons, likewise of disc-shaped design, the outer circumference of which is correspondingly rounded, and which are arranged opposite one another engage in the said recesses. All pistons or rotary pistons have intermeshing pinions, a certain ratio being predetermined by the size and shape. An advantageously small engine is thereby produced, the bearing shafts of which are subject to few stresses, which is of small overall size and which affords the advantageous facility for expansion in a lateral direction by extending the bearing shafts. <IMAGE>
Patent DE-3715262-A1 (DE)
Title: Hydraulic control device
Inventor: HONIG ERNST-AUGUST DIPL ING
IPC: F16H61/06
Filed: 1987-05-08
Abstract: A hydraulic control device for controlling the pressure medium actuation of a hydraulically actuatable shift element (1), provided in an automatically shifting motor vehicle transmission, is described, which has an accumulator (3), comprising a piston-cylinder unit and connected to the pressure actuation line (2) leading to the shift element, the piston (4) of which unit can be adjusted by the pressure of the pressure actuation line (2) against a counter pressure acting on the piston. In order to achieve a smooth shifting sequence, especially towards the end of the changing sequence, it is proposed that the piston (4) of the accumulator (3) be capable of actuation by a counter pressure continuously falling during the engagement sequence of the shift element (1). <IMAGE>
Patent DE-3715963-A1 (DE)
Inventor: BERNAT FRED B
IPC: A61K8/00
Filed: 1987-05-13
Abstract: A process for preparing an aluminum-hydrogen-oxygen complex e.g. Al12(H2O2)18H6 capable of releasing oxygen and hydrogen in the presence of a halogen compound, when added to a fluid which contains oxygen and hydrogen comprises (1) contacting aluminum metal which contains at least trace amounts of silicon with an acid, at such concentration that the acid both removes and inhibits formation of oxide on the metal, (b) contacting the thus treated metal with a source of mercury in an oxygen-containing atmosphere such as air, (c) partially immersing the mercury contacted aluminum in hydrogen halide acid solution for sufficient time to begin the formation of a complex on the mercury-contacted aluminum. Also disclosed is a further process for preparing an aluminum-hydrogen-oxygen complex in suspension by (a) at least partially redissolving the complex in a hydrogen halide acid solution to form a suspension; and (b) cooling the suspension; and (c) increasing the pH of the suspension to form about 5.0 to about 5.8. The complex is used for the treatment of acne, perspiration, sewage and as a depilatory.
Patent DE-3718790-A1 (DE)
Title: Heat-sensitive recording material
Inventor: KAWAI HAJIME
IPC: C09D11/00
Filed: 1987-06-04
Abstract: The invention relates to a heat-sensitive recording material in which the chromogenic dye precursors comprise:   (A) a mixture of at least two divinylphthalide compounds of the formula (I) <IMAGE> in which R<1> and R<2> are an alkyl group having 1 to 6 carbon atoms, an alkyl group having 1 to 4 carbon atoms with an alkoxy group having 1 to 4 carbon atoms or a cycloalkyl group having 5 to 7 carbon atoms, X<1> and X<2> are a hydrogen atom, an alkyl group or an alkoxy group, each having 1 to 8 carbon atoms, an alkoxy group having 1 to 4 carbon atoms with an alkoxy group having 1 to 4 carbon atoms, a cycloalkoxy group having 5 to 7 carbon atoms, an alkenyloxy group having 3 to 8 carbon atoms, a benzyloxy group, a substituted benzyloxy group, a furfuryloxy group, a tetrahydrofurfuryloxy group, a phenyl group, a substituted phenyl group, a phenoxy group, a substituted phenoxy group, a fluorine atom, a chlorine atom or a bromine atom, and R<1> and R<2> can be bonded to one another in order to form a heterocyclic ring, and (B) a mixture of the divinylphthalide compound of the formula (I) with at least one compound of the formula (II), (III) or (IV): <IMAGE> e
Patent DE-3719784-A1 (DE)
Title: A piece of seating furniture
Inventor: KORN HEINRICH
IPC: A47C3/026
Filed: 1987-06-13
Abstract: A piece of seating furniture, in particular office seating furniture, has a frame (22) on which a lever (3), connected to a seat (1) via a joint, is pivotably mounted, a spring (9) which seeks to hold the seat (1) in a defined position, a back (26) connected to the seat in articulated fashion, and a support (2) which is articulated, on the one hand, on the back (26) at a distance from the seat (1) and, on the other hand, on the frame (22). To provide a piece of seating furniture whose lever and support are movable with respect to one another in such a way that on lowering the seat, in the region of its back, the front side thereof is lowered and seat and back each assume a predetermined position, there is arranged between the lever (3) and the support (2) a differential gearing (7, 8, 24, 25) which is coaxial with their common pivot axis, of which one of the two bevel gears (7, 8) which are coaxial with the common pivot axis is firmly connected to the lever (3) and the other bevel gear (8, 7) is firmly connected to the support (2) (Fig. 3). <IMAGE>
Patent DE-3721416-A1 (DE)
Title: Process for the galvanisation (zinc electroplating) of articles
Inventor: BLINOV VASILIJ MICHAILOVIC
IPC: C25D3/22
Filed: 1987-06-29
Abstract: The invention relates to electroplating, and in particular to a process for the galvanisation of articles made of steel or of alloys of zinc and/or aluminium. The process consists in depositing zinc on the surface of the said articles from an aqueous alkaline zinc bath containing from 5 to 20 g/l of zinc oxide, from 50 to 200 g/l of caustic soda, and from 2 to 6 g/l of an organic additive representing a product produced by polymerisation of dimethyldiallylammonium chloride or bromide in the form of a 20 to 70 % strength aqueous solution, in the presence of sulphur dioxide or selenium dioxide as polymerisation initiator, at a temperature of between 85 and 115@C.
Patent DE-3727374-A1 (DE)
Title: Apparatus for the production of elementary-thread nonwoven
Inventor: HEINZE ACHIM
IPC: D04H3/03
Filed: 1987-08-17
Abstract: The invention relates to an apparatus for the production of elementary-thread nonwoven on the melt-spinning principle, the elementary threads of which nonwoven are highly drafted. A channel widening is arranged directly downstream of the mixing channel of the respective drafting injector. The mixing channel 2 has a diameter of 5-10 mm and the channel widening 3 a length of 20-50 mm. The angle of inclination  alpha  of the wall of the channel widening is 2-4@. The two last-mentioned quantities have tendencies opposed to one another within their limits. The channel widening brings about a recovery of pressure within the prescribed dimensions, with the result that a requisite substance strength of the elementary threads can be achieved with a lower energy consumption. The specific parallel position of the elementary threads is also secured when they leave the injector. <IMAGE>
Patent DE-3734253-A1 (DE)
Title: Curved conveyor belt
Inventor: NACK HELLMUTH DIPL ING
IPC: B65G15/02
Filed: 1987-10-09
Abstract: A curved conveyor belt has, at its outer edge, an elastic edge strip made of rubber which is continuous in the longitudinal direction, projects laterally from the conveyor belt and in which there are provided, at longitudinal intervals, eyes for the attachment of tension elements which absorb the radial forces which act on the curved conveyor belt during circulation and are directed towards the centre of the curve. <IMAGE>
Patent DE-3744269-A1 (DE)
Title: Actuating mechanism for throttle valves arranged in particular in the ventilation duct of motor vehicles
Inventor: DURST NORBERT DIPL ING
IPC: F16H19/00
Filed: 1987-12-24
Abstract: A description is given of an actuating mechanism for throttle valves (16) arranged in particular in the ventilation duct of motor vehicles. Said mechanism has a first rotatable shaft (2) and a second shaft (3) which determines the position of the throttle valve. A gear segment (6, 11) and a gear (7, 12) are arranged on each of the two shafts (2, 3), in each case one gear segment (6, 11) on one shaft (2, 3) being in engagement with the gear (7, 12) on the other shaft along non-overlapping rotational-angle ranges with differing transmission ratios (1.5:1; 1:1.5). On each of the two shafts (2, 3) there is furthermore arranged a tooth (9, 14) and next to it in the same plane a recess (10, 15) in such a manner that in the rotational-angle range in which engagement of a gear with a gear segment does not take place, the transmission of power takes place by the interaction of one recess (10, 15) on one shaft (2, 3) with a tooth (9, 14) on the other shaft (2, 3). <IMAGE>
Patent DE-3744284-A1 (DE)
Title: Coupling device for the releasable connection of two parts to one another
Inventor: SCHROEDER MAGDY DIPL ING DIPL
IPC: F16D1/095
Filed: 1987-12-28
Abstract: A coupling device for the releasable connection of two parts to one another, one of which is made rod-like as a shaft (35), possesses a pot-like housing (11), in the interior of which a part element (16) is fastened by means of a wedge-shaped collar (17). A pressing part (24) engages over the wedge-shaped collar (17) and is pressed by springs in the direction of a clamping of the wedge-shaped collar (17) together with the shaft (35). To release the coupling, there is provided pressure fluid which is forced via a bore (36) in the bottom of the housing (11) into an annular space (23) formed between the inner face of the pot-like housing edge (13) and the outer face of the wedge-shaped element (16), with the result that the pressing part (27) designed as an annular piston is forced away from the wedge face counter to the pressure of the springs. <IMAGE>
Patent DE-3803054-A1 (DE)
Inventor: BENDING MARGARET
IPC: G03H1/06
Filed: 1988-02-02
Abstract: A holographic optical element is produced using a time-averaged spatially incoherent beam of optical radiation. This beam is directed through a beam-splitter 5 which produces two beams which intersect in the region of a holographic recording material 8 where they produce a plurality of families of interierence fringes in the holographic material. The exposed holographic material is then processed to form a holographic optical element in which there is substantially no cross-talk between the families of fringes. A and B are points on e.g. a diffuser which moves in its plane during the exposure so that the relative phase between beams 4a and 4b becomes randomised so that cross-talk interference fringes become blurred and do not record. <IMAGE>
Patent DE-3804700-A1 (DE)
Inventor: DOMINGO MANUEL JOSE
IPC: C09B67/30
Filed: 1988-02-15
Abstract: Liquid compositions of sulphur dyes in leuco (reduced) form, have a total inorganic sulphide contents </= 3 % by weight and a very low content of inorganic salts other than sulphides. They are obtained by reducing a sulphur dye in an alkaline medium to which no sulphide reducing agent has been added, preferably employing a reducing sugar (e.g. glucose) as reducing agent. Optionally, prior to reduction, the sulphur dye may be oxidised (e.g. aerated) to eliminate sodium sulphide, treated with sodium sulphite to eliminate elemental sulphur, and washed to eliminate inorganic salts. The reduction may be effected under an inert atmosphere and in the presence of a solubilising agent e.g. diethylene glycol, The liquid compositions have improved stability, and show improved penetration and more moderate substantivity in the dyeing and printing of cellulosics (e.g. cotton) and cellulose-polyester blends.
Patent DE-3806813-A1 (DE)
Inventor: SCHULZE WERNER
IPC: B27G19/04
Filed: 1988-03-03
Abstract: In a circular saw, the drive housing (3) with drivable saw ring (6) is mounted pivotably on a base plate (1). The toothed rim (7) of the saw ring (6) is completely covered at the top by the base plate (1), the drive housing (3) and covering elements (12, 15, 18, 21), and in addition the saw ring (6) can pivot in the rest position completely above the base plate (1). This safely prevents the operator from touching the toothed rim (7). <IMAGE>
Patent DE-3808853-A1 (DE)
Title: Brush bottle
Inventor: BREUHAN MANFRED
IPC: A45D40/26
Filed: 1988-03-17
Abstract: A brush bottle for storing and delivering viscous contents consists of a flexible bottle body, a delivery brush, which can be wetted with the viscous contents from the inside of the bottle body, and a closure which engages over the delivery brush. In known brush bottles, there is the problem that the closure constructed as a cap can drop off or become lost or, for reasons of convenience, is also set down between times of use. In this case, the delivery brush can dry out and solvents are absorbed unnecessarily in the atmosphere. The invention avoids these disadvantages, in that the closure is designed as a rotary slide closure, and the delivery brush can be moved from a storage position into a delivery position and vice versa. Additionally, an actuating device is provided to move the delivery brush, which actuating device is coupled to the rotary slide closure.
Patent DE-3818225-A1 (DE)
Title: Drawer guide with a return-travel obstruction
Inventor: EBLENKAMP ALBERT
IPC: A47B88/04
Filed: 1988-05-28
Abstract: In the case of a drawer guide with body-side supporting rails and drawer-side guide rails and at least one running roller which is arranged inside each rail pair and is assigned, at the guide rail, a return-travel obstruction for the pushed-in drawers, the return-travel obstruction is arranged in the rolling path of the running balls as a resiliently yielding narrowing capable of yielding against the pressure of the running roller. Behind the narrowing, the return-travel obstruction is constructed with a catching seat which receives the running roller. As a result of these measures, in addition to a catching device which is simple and can be assembled inexpensively quiet travelling of the drawer into the closed position is possible without the drawer rebounding and opening again due to the impact on the furniture.
Patent DE-3821825-A1 (DE)
Title: Tea-making machine
Inventor: BRUECKNER ANDREAS
IPC: A47J31/52
Filed: 1988-06-29
Abstract: The invention relates to a tea-making machine, operating independently of the mains, with adjustable drawing time and an automatic-delivery tea-drawing receptacle, which consists of a heatable boiling receptacle with an ascending pipe leading out of it, which opens into a pivotably mounted tea-drawing receptacle arranged at the distance of a serving jug above the boiling receptacle, a timing element which blocks the pivoting movement of the tea-drawing receptacle for a predeterminable time, a removable channel into which the nozzle with the delivery pipe of the tea-drawing receptacle opens during the pivoting movement thereof and has an outlet opening above the serving jug, and a spring arrangement as well as a counterweight, which control, when the tea-drawing receptacle is released by the timing element, a continuously running-off pivoting movement of the tea-drawing receptacle until complete emptying of the same.
Patent DE-3823989-A1 (DE)
Title: Regulator for the rapid determination of the characteristic curve of non-linear voltage generators
Inventor: HAUSER KARL-HEINZ DIPL ING
IPC: G01R31/26
Filed: 1988-07-15
Abstract: A circuit is described for the determination of the current/voltage characteristic curve of generators, especially solar generators. By means of the circuit, the differential du/dt or di/dt is held constant (U Gen, I Gen). Deviations from preset desired values are compensated by means of a regulator for the load drive. Inter alia, a significant reduction of the time for the determination of the characteristic curve is achieved.
Patent DE-3824902-A1 (DE)
Inventor: SCHEROWSKY G PROF DR
IPC: C07D409/14
Filed: 1988-07-22
Abstract: Optically active 1,3-dioxolane derivates of the general formula <IMAGE> which carry a mesogenic radical in the 4-position are suitable as dopes in - in particular ferroelectric - liquid-crystal mixtures. The symbols in the general formula have the following meanings: R<1> has a structure analogous to the moiety of the general formula on the right of X or is an alkyl or alkylene radical, which may be substituted, R<2>, R<3> and R<4> are H or alkyl (R<4> is alternatively alkenyl), which may also be substituted [R<2> and R<3>, together with the C(2) of the dioxolane ring, may alternatively be cycloaliphatic or keto groups], j, l and n are zero, 1 or 2, and k and m are zero or 1, with the proviso that n is zero if k is zero, m is zero if n is zero, and 1 </= j + l + n </= 3, -A<1>, -A<2> and -A<3> are an aromatic, heterocyclic or aliphatic ring system, -M<1> and -M<2> are -CO-O, -O-CO, -CH2CH2, -CH=CH, -CH2O, -OCH2 or -C IDENTICAL C and  X is O, S or O-CO-O. The particular advantage of the compounds of the general formula (I) is that they are able to induce a high twisting power in the cholesteric phase, but without significantly affecting the magnitude of the spontaneous polarisation already present in the mixture in the smectic C<*> phase. They are therefore suitable for pitch compensation, in particular for ferroelectric liquid-crystal mixtures.
Patent DE-3826842-A1 (DE)
Title: Process and device for the trouble-free grasping, centring and stretching of a preform in a stretch blow moulding installation
Inventor: MANK MANFRED DIPL ING DR
IPC: B29C49/06
Filed: 1988-08-06
Abstract: A process and a device for the trouble-free grasping, axial holding, centring and stretching of a heated preform to form a hollow body in a mould of a stretch blow moulding machine are disclosed. The temperature-controlled preform is grasped by a transfer device and transferred into the swung-open mould halves. Thereafter, the heated preform in the mould is grasped at its annular groove, moulded in above the supporting ring, by means of a divided centring flange, is centred and held axially during the stretching and inflating operation.
Patent DE-3827228-A1 (DE)
Inventor: VEITH GUSTAV DR PHIL
IPC: H04B10/40
Filed: 1988-08-11
Abstract: A transmitting/receiving section (11) for a bidirectional coherent-optical communication system provided with an optical waveguide link (12) is provided with a laser (16) for sending out a signal wave and with a modulator and with a coherent receiver (13) for heterodyne reception and with a demodulator. In order to achieve that such a transmitting/receiving section (11), having the same performance features, manages with a lower expenditure of components and can be constructed more compactly and produced more inexpensively, it is provided that the laser (26) is used at the same time for sending out an oscillator radiation for the heterodyne receiver (13) of the same transmitting/receiving section (11) and/or at the same time for optical amplification of the signal wave arriving from the remote transmitting/receiving section (11) via the optical waveguide link (12). 
<IMAGE>
Patent DE-3828145-A1 (DE)
Title: Apparatus for optical writing/reading to and from optical storage media
Inventor: CRASEMANN JAN HEINRICH DR
IPC: G11B7/09
Filed: 1988-08-19
Abstract: The invention relates to an apparatus for optically writing/reading to and from optical storage media, in particular for storage disks (1) which are digitally coded and read out in rotation, having a pick-up arm (3), which is mounted outside the storage disk (1) and bears at its free end (10) a read-out head (21), which reflects a light beam (23) from a light source (24), arranged in the mounting region of the pick-up arm (3), to the storage disk (1) and back. Piezoelectric means (17, 18) are provided for directing the light beam (23) onto the location to be read out of the storage disk (3). The pick-up arm (3), of a lightweight design, bears at its free end (10) a tube extension (20) with the pick-up head (21) at its front free end. The connection between pick-up arm (3) and tube extension (20) comprises rigid, strip-shaped connections (19, 19a), acting on the tube circumference, and further piezoelectric readjusting elements (17, 18), acting on other locations of the tube circumference (28). The pick-up head (21) is provided only with a deflecting mirror (25). <IMAGE>
Patent DE-3831254-A1 (DE)
Title: Process for the production of a composition for reviving and for stimulating and strengthening hair growth
Inventor: MAI HEINZ
IPC: A61K36/48
Filed: 1988-09-14
Abstract: In a process for the production of a composition for reviving and for stimulating and strengthening hair growth in living beings, the alkaloid trigonelline or trigonelline acid is extracted from the seeds of the plant fenugreek (Trigonella foenumgraecum), mixed with a vitamin and preservative, and then converted into a concentrate.
Patent DE-3843607-A1 (DE)
Title: Method of calibrating oxygen electrodes
Inventor: DOERR ALEXANDER DR
IPC: G01N27/416
Filed: 1988-12-23
Abstract: In a method of calibrating oxygen electrodes, distilled water is heated to a temperature above 60@C until it no longer contains free oxygen, a 3% strength hydrogen peroxide solution is then added, the mixture is irradiated with UV light while cooling and the oxygen electrode to be calibrated is introduced while measuring pressure and temperature and the difference between standard value and value found for the oxygen present is determined.
Patent DE-3901300-A1 (DE)
Title: Process for producing a carbon molecular sieve
Inventor: SPINDLER HERBERT DR
IPC: B01J20/20
Filed: 1989-01-18
Abstract: The invention relates to a process for producing a carbon molecular sieve from brown coal coke which can be used for the separation of small-molecular gases. The essence of the invention is the direct production of uniform molecular sieve pores under inert conditions and the action of steam at relatively low temperatures. The process procedure is simple.