baber/WOPTO huggingface dataset:
Patent DE-3844591-A1 (DE)
Title: Roller conveyor
Inventor: BECKER KLAUS DIPL ING DR
IPC: B65G39/09
Filed: 1988-08-26
Abstract: The invention relates to a roller conveyor having idlers, in the ends of which there are inserted bearings which run on shafts which are supported by side cheeks of the roller conveyor. In order to simplify the fastening and therefore also the structure of the idlers within the side cheeks of the roller conveyor, it is proposed that spreading elements (11) be inserted into the ends of the idlers (5). <IMAGE>
Patent DE-3907931-A1 (DE)
Title: Sanitary flush-mounted fitting
Inventor: OBERDOERFER HANS
IPC: E03C1/042
Filed: 1989-03-13
Abstract: A sanitary flush-mounted fitting is provided with a two-part insulating-material sleeve which consists of foam and serves both as packaging before installation and as insulation with respect to the masonrywork after installation. The parting plane of the two parts of the insulating-material sleeve runs parallel to the wall, in the installed position of the flush-mounted fitting. Even when the flush-mounted fitting is installed, access can thus be gained to said fitting without any difficulty by removing one part of the insulating-material sleeve. <IMAGE>
Patent DE-3910550-A1 (DE)
Title: Process and apparatus for increasing the efficacy in biological purification processes
Inventor: HARTMANN HELMUT DR
IPC: B09C1/10
Filed: 1989-04-01
Abstract: Process and apparatus for the acceleration and increase of efficacy of bacterial metabolism in biological purification processes for contaminated solid masses. Attempts are made to exclude all inhibitory effects in the course of the previously conventional biological purification processes and to have the purification process proceed substantially without operators and monitor and control its operating parameters itself. This is achieved, during the biological purification process, by continuously keeping at an optimal state, under control and monitoring, the bacterial environmental conditions in relation to bacterial multiplication and their metabolic requirement increasing as a result, by supplying, under continuous control and monitoring, sufficient oxygen which corresponds to the growing requirement of oxygen, by maintaining a constant optimum moisture content, under continuous control and monitoring, in the bacterial milieu, and by generating a constant optimum temperature, under continuous control and monitoring, in the bacterial milieu.
Patent DE-3913854-A1 (DE)
Title: Drawer side without projections - has wooden or plastics side panel with integral rail
Inventor: BERGER HORST
IPC: A47B88/04
Filed: 1989-04-27
Abstract: The drawer side consists of a wooden or plastics side panel (8) and a runner rail (7). The runner rail has a C-shaped profile. Its lower flange (11) forms with the dorsal part (9) a right angle by a depth equal to the thickness of the side panel, thus coming level with the latter. The runner rail is mounted with the lower flange onto the side panel, forming together the drawer side with a continuous, flat inner surface. USE/ADVANTAGE - Drawer side allows for greater width of drawer. There are no projections collecting dirt.
Patent DE-3916155-A1 (DE)
Title: Internally-toothed gear pump
Inventor: BARTL MAX
IPC: F04C2/10
Filed: 1989-05-18
Abstract: The gear pump has a housing (1) with cover (10) and containing a rotary internally-toothed gear (2) meshing with a pinion (3), together with a sickle-shaped filler-piece (8) between the two and the suction and pressure sides (S,D). This piece tilts on an axis parallel to that of the pinion, and bears at its wider suction end against a supporting pin (4) passing through the space between pinion and gear. On one flat side (11) of the filler-piece, typically that towards the cover, there is a groove (12) starting at its point and ending before its wide end. This is connected at the point to the pressure side (D).
Patent DE-3923706-A1 (DE)
Title: Rear-view mirror arrangement - is for two-wheeled vehicles and consists of plug-section fixed in open handlebar part
Inventor: SCHLACHTBERGER DIETER
IPC: B62J29/00
Filed: 1989-07-18
Abstract: There is a fastener, to fix the arrangement as a whole, to the tubular handle bar section of e.g. a bicycle. It enables adjustable fastening of a mirror to parts of the arrangement. The fastener has a plug = section (18), which is fixed in the open end of a tubular handle bar section (20). It forms a holder for a fastening element (24), connected to the mirror (30). USE/ADVANTAGE - Compact, robust, vibration-free rear-view mirror for bicycle.
Patent DE-3928837-A1 (DE)
Title: Air conditioning or ventilation duct - has thermal insulation secured by plastics flange which clips over metal flange
Inventor: GEBHARDT MANFRED
IPC: F16L23/14
Filed: 1989-08-31
Abstract: A duct forming part of a ventilation or air-conditioning system is made from sheet metal (2) with sections of the duct joined end to end by flanges (3). These flanges are made of sheet metal folded to form an L shape with a double wall with one of the legs of the L shape having two flanges (4,5) which grip the sheet metal. The main flange is partly covered with a plastics flange (8) which grips the edge of the panel (12) of thermal insulation. This plastics flange is so shaped that it grips a ridge (7) formed on the outer edge of the main metal flange. USE - Air conditioning and ventilation ducts.
Patent DE-3930605-A1 (DE)
Title: Recovering suspended biological material subjected to rapid reaction - by initiating reaction then fixing material by spraying into cryogenic fluid
Inventor: PLATTNER HELMUT PROF DR
IPC: C12N1/10
Filed: 1989-09-13
Abstract: Method for recovering biological material (A), suspended in a liq. medium, from a rapid reaction process, comprises: (1) passing a constant flow of a suspension of material to be subjected to a rapid reaction, at a predetermined flow rate, through a chamber where reaction is initiated by physical, chemical and/or physicochemical means; (2) passing the reaction mixt. through a flow tube of predetermined length and dia.; (3) spraying the suspension through a nozzle system at the end of the tube, after a predetermined length of time, in the form of one or more fine liq. streams into a liq. cryogenic medium to provide cryo-fixation (rapid freezing); (4) sepn. of the cryo-medium from the fixed suspended particles, and (5) opt. storing these particles in a coolant at a temp. where no change in the conditions produced by the rapid reaction can occur. An appts. for the process is also claimed. USE/ADVANTAGE - Suitable (A) include unicellular microorganisms; plant, animal or mammalian cells; hybridoma cells; their organelles, etc., opt. incorporated into vesicles and/or microcapsules, or bonded/sorted to suspended carrier particles. The recovered materials are storage stable and can be subjected to further analytical or preparative processes without risking any structural, chemical, morphological or functional changes. Unlike chemical quenching (e.g. with flutaraldehyde), cryo-fixation is very rapid and does not create any artefacts, so the process can also be used for kinetic investigations. By varying the appts. dimensions and flow rates, a wide range of dwell times and thus reaction rates can be achieved.
Patent DE-3937640-A1 (DE)
Inventor: SCHARF HELMUT DR
IPC: C01G25/02
Filed: 1989-11-11
Abstract: 1. Stabilised or unstabilised zirconium dioxide powder and a process for its preparation. 2.1 In the previously practised processes for the preparation of zirconium dioxide powder, the use of aqueous solutions and the removal of precipitates are great disadvantages. Moreover, the process products often do not have the desired flow, compacting and sintering properties as a result of inhomogeneous distribution of the stabiliser and the presence of large crystallites and hard agglomerates. 2.2 By dissolving zirconyl chloride and, if desired, a stabiliser or its precursor in concentrated formic acid at elevated temperature, evaporating the solution to dryness by evaporation of water, hydrogen chloride and formic acid, calcining of the residue at elevated temperature and, if desired, grinding of the calcined product, it is possible to prepare a stabilised or unstabilised zirconium dioxide powder having good properties. 2.3 The stabilised or unstabilised zirconium oxide powder is suitable for the preparation of sintered articles which can be exposed to high mechanical and/or thermal stresses or are intended to be used for optical purposes.
Patent DE-3939646-A1 (DE)
Title: Filter tube gas throughput measuring appts. for dust filtration system - has measurement connector, pref. with Venturi measurement insert
Inventor: BRUENGER ALFRED
IPC: G01F1/44
Filed: 1989-11-30
Abstract: The arrangement has a measurement connector (1) with a measurement insert (2), pref. a Venturi insert, and an insert section (12) for connection to  a tube connector (10). The measurement connector and inset section are inserted into a tube connector located in a filter system's tube base (11) and fixed wrt. it. The other end of the measurement connector is connected to the end of the filter tube. ADVANTAGE - Can be built into pilot systems or used in practical operations without great cost.
Patent DE-4001305-A1 (DE)
Inventor: KUERZINGER KARL DR ING
IPC: B01J19/12
Filed: 1990-01-18
Abstract: In a process for removing organic trace substances from flue gases, in particular from refuse incinerating installations, the flue gases pass through a wet cleaning stage and are then treated with UV radiation the wavelength of which is less than 310 nm, preferably less than 245nm.
Patent DE-4002554-A1 (DE)
Title: Exhaust emission cleaning - adsorb powder to gases to absorb pitch and tar for removal and disposal
Inventor: JUNGK KLAUS DIPL ING
IPC: B01D53/75
Filed: 1990-01-30
Abstract: To remove damaging pitch or tar vapours from the exhaust emissions when burning green carbon anodes in aluminium mfg., a powdery sorb is added to the exhaust gas to absorb the pitch and tar. The powder, together with the absorbed pitch and tar is separated from the gases and passed to a furnace. The pitch and tar is burned at high temps. and separated from the powder. The pref. sorb to detach the pitch and tar in the exhaust gas is an aluminium oxide powder with a grain size of less than 150 microns. The pitch and tar are burned at temps. of 700-900 deg.C.. ADVANTAGE - The method gives a simple process to separate pitch and tar from exhaust emissions, and prevent damage to the environment.
Patent DE-4005091-A1 (DE)
Title: Method of fixing window in bodywork of vehicle - uses bolt passing through adjustment bush to adjust glass
Inventor: ZWEIGART GERHARD
IPC: B60J1/10
Filed: 1990-02-17
Abstract: The method is for installing and fixing a vehicle window in which the bolt (12) of the connection (0) passes through the adjustment bush (8) via an oversize hole (17). Th twisting of the bolt causes a displacement of the glass frame parallel to the glass surface (9) such that the clamping force of the connection prevents any movement of the bush and the frame. ADVANTAGE - Method of fitting a window which ensures an exact matching of the glass with the frame in the vehicle bodywork.
Patent DE-4007166-A1 (DE)
Title: Nitrogen oxide(s) removal from waste gas - contg. sulphur tri:oxide, involving alkaline earth addn. to avoid ammonium hydrogen sulphate formation
Inventor: LIMPER KLAUS
IPC: B01D53/50
Filed: 1990-03-07
Abstract: In NOx removal from waste gas contg. H20 and SO3 by introduction of NH3 (source), the novelty comprises addn., in accordance with the SO3 content of the waste gas, of an alkaline earth metal-contg. reactant at a waste gas temp. of below 800 deg.C but pref. above 140 deg.C. The reactant may be selected from oxides, hydroxides and carbonates of Ca and Mg, including dolomite, in powder or soln. form. The reactant is pref. added in a superstoichiometric amount wrt. the sulphur content present as SO3 and may be introduced before and/or after or together with NH3 (source) introduction. USE/ADVANTAGE - The process is useful for treating flue gas from waste incineration e.g. in power stations. The reactant avoids formation of NH4HSO4 which can deposit on and corrode heat exchange surfaces, etc.
Patent DE-4007335-A1 (DE)
Title: Electrical insulator sepg. inner from grounded outer conductors - comprises plastic cpd. with inert filler and has embedded ring shaped regions with higher dielectric constant to modify field
Inventor: NIEMEYER LUTZ DR
IPC: H01B17/18
Filed: 1990-03-08
Abstract: The insulator, which separates an internal conductor (8) from an outer conductor (1,2), which is grounded, consists of an inner part (7) and an outer part (6) to which the outer conductors are attached with flanges (3,4).  Inside the inner part (7) a field-modifying structure is embedded consisting of insulated material (15,16) made of a material with a higher dielectric constant than the rest of the insulator. The imbedded regions (15,16) are pref. made of a plastic cpd., a thermoplastic or thermosetting material, with the same powdered filler as the insulator (7) and an additional filler with a much higher dielectric constant, pref. TiO2 or titanates, pref. Ba-titanate. The matrix material is pref. the same as  that of the insulator (7). USE/ADVANTAGE - The embedded region modifies the field-strength and reduces the effect of delaminations at the interfaces of the conductors and the insulator. The absence of currently used ring shaped metal electrodes at the interfaces also  allows an additional source of delaminations to be removed. The material used for the inserts can be the same as that used in the insulator, ensuring good bonding. There is no appreciable mechanical stress in the regions, reducing the likelihood of delamination occurring. The insulator is used in electro technical applications for medium and high voltage.
Patent DE-4010965-A1 (DE)
Title: Continuous casting die - has gas-tight cover of thermally insulating material to prevent heat loss
Inventor: GROTHE HORST
IPC: B22D11/11
Filed: 1990-04-05
Abstract: The upper end of the continuous casting die (1) is gas-sealed against the outside by a thermally insulated cover (2). The feed tube (3) of the pouring gate (4) passes downwards through the cover (2). The cover (2) has connections (7,10) to feed inert gas into the die (1) and for the exhaust of gasses from the die. The cover can be a hood with its lower edge engaging in U-shaped sealing bars at the die. Lubricating bars are on the die within the hood, with openings to deliver lubricant to the die. A heat-resistant bellows (12) surrounds the zone between the base (11) of the pouring gate (4) and the cover (2) over the die, to give a gas-tight seal. ADVANTAGE - The assembly prevents heat loss during casting and maintains the reoxidisation of the molten metal where the material enters the die.
Patent DE-4012890-A1 (DE)
Title: Control arrangement for piston of position motor - involves formation of control edges on control slide
Inventor: MARIAN ALFRED
IPC: F15B9/10
Filed: 1990-04-23
Abstract: Control arrangement for the working piston of a pressure medium actuated position motor in which the working piston (1) is connected to a control slide (10) which is movable relative to a control element (12) and subject to a control pressure (Ps) against the force of a spring (14). Control edges (17,18) to block and release the pipes (19,26) for the inlet and outlet of the pressure medium are formed on the control slide. USE/ADVANTAGE - Position motor in which preset intermediate positions of the working piston can be reliably engaged.
Patent DE-4014780-A1 (DE)
Title: Guide for sheets of paper - consists of pneumatic pieces in guide pieces, with suction hole and nozzles
Inventor: KOCH MICHAEL DR ING
IPC: B65H29/24
Filed: 1990-05-09
Abstract: The guide for sheets of paper for leading flexible, flat-surfaced articles (9) to processing-machines, especially printing machines, consists of several pneumatic pieces (11) incorporated into enclosed guide-pieces. The piece (11) has a central suction-hole for suction-air. Symmetrical to the suction-hole are several nozzles through which air is blown at a discharge angle of 90 degrees. ADVANTAGE - The flexible flat articles are conveyed through the printer without touching and flapping.
Patent DE-4019016-A1 (DE)
Title: Hydraulically operated percussion tool - has system to vary mode of operation according to hardness of material
Inventor: ARNDT FRIEDRICH KARL DR ING
IPC: B25D9/26
Filed: 1990-06-14
Abstract: The method controls the operation of a hydraulic percussion tool (2) according to the hardness of the material on which the tool is being used. The tool is fitted with a device which emits a signal shortly before and shortly after the tool reaches the lowest point of its travels. These signals enable the velocity of the working stroke of the tool and the velocity of the return stroke of the tool to be estimated. This information is then used to vary the length of the return stroke. A hydraulic device embodied in the tool carries out the necessary adjustments. USE - Percussion tools.
Patent DE-4020340-A1 (DE)
Inventor: KAMADA SHINYA
IPC: F16H61/08
Filed: 1990-06-26
Abstract: A control apparatus for an automatic transmission having a torque converter is so adapted that first a comparatively high-speed change ratio is set when there is a range changeover between the reverse range R and a forward cruising range (e.g., D, S, or L). This comparatively high-speed change ratio is maintained until it is detected that the gear mechanism of the automatic transmission is substantially formed for this high change ratio. A transition is made to a low-speed change ratio after it is confirmed that the gear mechanism is substantially formed for the high change ratio. By virtue of this operation, the torque delivered by the output shaft of the transmission assumes a step-shaped form in the course of the transition from the high-speed change ratio to the low-speed change ratio. As a result, a large transmission shock is minimized.
Patent DE-4025068-A1 (DE)
Title: Automatically adjustable electrical switch - has relative movement of parts conveyed to plunger to change switch contacts over
Inventor: SCHRADER JUERGEN DIPL ING
IPC: H01H3/16
Filed: 1990-08-08
Abstract: The switch comprises a switch element (1) switchable by a plunger (5), an actuator element (15), and two parts (8,14) attached to the elements (1,15) movable relative to each other in a defined end position in which the switch is operated by the actuator (15). The switch is held (12) and movable according to movement of the elements against a spring return force. A cam (13)  relative movement of the parts (8,14) to the switch (1) in the holder (12). USE/ADVANTAGE- Enables precise adjustment of relief switch point of known switch elements. Used in e.g. vehicles. Accurate switch can be mass produced. Simple, compact and inexpensive.
Patent DE-4027782-A1 (DE)
Title: Electricity generator - having permanent magnetic discs, coil discs and opt. rotary discs with urethane] elements
Inventor: LIM JONG HA
IPC: H02K21/26
Filed: 1990-09-01
Abstract: (A) An electricity generator includes (i) a drive shaft (2), (ii) three permanent magnet disks (3,4,5) which are fixed the generator housing (1) and which have several permanent magnets and opt. additional permanent magnets fixed at predetermined angular distances w.r.t. the drive shaft (2), (iii) two coil disks (6,7) which are fixed to the drive shaft (2) and are interposed between the permanent magnet disks (3,4,5) the coil disks having several coils corresp. to the number of permanent magnets and fixed to the disks at predetermined angular distances w.r.t. the drive shaft (2), and (iv) connectors for parallel connection of the coil output leads. (B) also claimed are (a) a generator as in (A), but in which the permanent magnet disks are fixed to the drive shaft and the coil disks are fixed to the generator housing, and (b) a generator as in (A) in which four rotary disks are fixed onto the drive shaft, each rotary disk being located between a permanent magnet disk and a coil disk and having magnetic flux blocking elements. It is disclosed that the magnetic flux blocking elements may be of urethane. ADVANTAGE - The generator has increased efficiency and power, and heat-genration within the generator is minimised.
Patent DE-4029064-A1 (DE)
Title: Drawing appts. producing parabola - involves right-angled rods rotatably fitted in two vertices so that their shanks form two points of intersection
Inventor: KUSBER MATTHIAS
IPC: B43L7/14
Filed: 1990-09-13
Abstract: A basic construction in the form of a bearer plate (T) has two pins (D1,D2) on which a right-angled L-shaped rod (L1,L2) is fitted rotatably in its vertex so that the shanks of the rods intersect in pairs, thereby forming two points of intersection (X,Y). One of these points of intersection (X) is positioned with the air of a suitable device (V) so that it is parallel to the connecting straight line between the two pins. The other such point (Y) describes a parabola path (P) on the bearer plate (T). The distance between the guide device (V) and the connecting straight line between the two pins (D1,D2), and thereby the shape of the parabola, is variable. Likewise, the distance between the two pins, and therefore the size of the produced parabola section, is variable. USE - In technical drawing, to produce a parabola.
Patent DE-4032814-A1 (DE)
Title: Electronic divider circuit with special input circuit - has special decimal point and shift register control circuit without pulse counter
Inventor: MERKLE PAUL
IPC: G06F7/491
Filed: 1990-10-16
Abstract: An electronic divider circuit has a decimal point shift register. The first input or dividend is automatically terminated with a decimal point if it does not contain one. The combined decimal point and shift register control circuit (60) contains no pulse counter. The combined circuit contains 3 potential-storage-flip-flops (51-53), only 6 AND circuits (54-59), each with 2 inputs, and an OR circuit (61) with 2 inputs. Alternatively it can contain other components with an equal number of outputs and the same drive functionality. USE/ADVANTAGE - The circuit is developed by the addition of a special input circuit and a special decimal point and shift register control circuit.
Patent DE-4032817-A1 (DE)
Title: Chromatographic analysis of catecholamine - in three stages of prepn. decontamination and fraction atom
Inventor: YOSHIDA KASUMI
IPC: G01N30/74
Filed: 1990-10-16
Abstract: A method of liquid-phase chromatography is based on separating the constituents of a sample, which precedes the special sample, in a fractionating column, whilst a column for removing impurities processes a marked special sample.  Care is taken that a marking reaction of a sample, which follows the special sample, takes place in a reaction processing section. ADVANTAGE - This permits several samples to be analysed even when the sample is submitted to a marking reaction.  Compared with the sequential procedure, this reduces the time for the analysis considerably.
Patent DE-4032929-A1 (DE)
Title: Hinge formation for vehicle doors or tail-gates -  uses two swivel bearings acting as hinge eye and pin and located in common pivot axis
Inventor: HELLRIEGEL EDMUND
IPC: E05D5/10
Filed: 1990-10-17
Abstract: The vehicle door (3) involved comprises outer and inner plates, and the door-side hinge vane (4) is formed as a one-piece structure with the face area (5) of the door inner plate. To achieve the requisite strength for withstanding the forces to which the door linkage is liable to be subjected, the face area (5) of the door inner plate is formed with a greater wall strength than the remainder of the door material. At least one of the swivel bearing-supporting hinge vanes (4, 5) is formed by a formation of the face side (5) adjacent to the pivot axis of the vehicle bodywork and/or door body (3). USE - As a hinge arrangement for vehicle doors or tail-gates.