baber/WOPTO huggingface dataset:
Patent DE-3910500-A1 (DE)
Title: Film-data reading device for photographic camera
Inventor: WELZEL HERBERT
IPC: G03B7/24
Filed: 1989-04-01
Abstract: In a film-data reading device for use in a photographic camera for film cartridges, which carry code patterns consisting of electrically conductive and electrically insulated code zones, each code zone being assigned a carrier part, which is mounted in the camera housing in a slightly tiltable and in an electrically insulated manner and is resiliently biased with respect to the code zone, out of the section, facing the code pattern, of which carrier part contacts emerge which can be brought into contact with the code zone, a contact plate (5) which projects towards the code zone (4a) is connected to the carrier part (6), which contact plate (5) has a closed (continuous) contact edge (5a, 5b) which can be brought into contact with the code zone (4a). <IMAGE>
Patent DE-3910784-A1 (DE)
Title: Reversible rotor blade (180@)
Inventor: SCHILDER HANS
IPC: F04D19/00
Filed: 1989-04-04
Abstract: The rotor has rotor blades which can be rotated through 360@ and are supported in such a way as to ensure ease of operation. Radial support is provided by lubricant-free bushes. The centrifugal forces are taken by a disc, the surface of which does not have any bearing properties. The bevel pinion at the end of the blade shaft is secured by a retaining ring and a clamped connection. The rotor is mounted pivotably between two adjustable cams on the crown-gear hub shaft. The bevel pinion engages in the crown gear and pivots the rotor blade through about 180@. The direction of delivery is identical with the direction of rotation. When stationary and when reversing the direction of delivery, there are no centrifugal friction forces.  Switching-on procedure: The moment of inertia of the rotor and the starting torque of the motor move the rotor blades into the delivery position before the operating speed is reached. The driving torque holds the rotor blades in the delivery position even when the direction of rotation or delivery is reversed.  Sequence of operations during reversal:     1. Setting of the rotor blades to the delivery direction.   2. Taking along of the rotor   3. Run-up to the desired speed of the electric motor.   Axial-flow fans are suitable for industrial and tunnel fans which can perform delivery in both directions.
Patent DE-3913814-A1 (DE)
Title: Electro-elution of charged cpds. bonded to sepn. gel - in appts. comprising two electrode chambers connected by gel receiving containers, for recovering nucleic acid, proteins, etc.
Inventor: BAUER GUENTHER
IPC: B01D57/02
Filed: 1989-04-26
Abstract: Appts. for electrical elution of electrically-charged substances (I) bound to a sepn. gel comprises at least one electrode chamber for each of a cathode and an anode, these chambers being joined (as the only electrical connection between them) by a receiving container for the gel and, attached to it, a collecting container which contains a sorbent to which eluted (I) bind. The sorbent is an ion-exchanger (particularly a DEAE material) or a reverse-phase material.  The two containers are sepd. from each other and/or from the electrode chambers by a filter and/or frit. USE/ADVANTAGE - This appts. provides high recovery of (I) such as RNA, DNA, proteins and polypeptides.  It is simple enough to be disposable (preventing cross-contamination and facilitating use with radioactive samples) and is suitable for large-scale operations.
Patent DE-3920623-A1 (DE)
Inventor: PROELSS ALFRED
IPC: H04N5/64
Filed: 1989-06-23
Abstract: A television set is described which can be operated via a remote control transmitter. The television set exhibits a curved front panel extending over the entire front. The front panel is permanently joined to the housing adjoining it at the rear and the picture tube exhibits the same curvature as the front panel in the visible picture area. <IMAGE>
Patent DE-3927724-A1 (DE)
Title: Underwater missile esp. torpedo - has rotating and target-seeking components mounted in centre or nose with 36 deg. coverage of targets recognised by successive scanning during contra-rotation
Inventor: TEGEL MAREK DR ING
IPC: B63G8/00
Filed: 1989-08-23
Abstract: The cylindrical torpedo (1) propelled by an aft-mounted engine (2) has two roller-like components (3, 4) amidships which rotate in opposite directions, and are also pivotable about its longitudinal axis. These may be sonar devices or rocket-launching tubes. An alternative position for these components is in the nose of the missile where they may exert torques tending to cause it to keel over. They may be motor-driven and sepd. by protective walls orthogonal to the axis. ADVANTAGE - Missile can locate and attack hostile objects at wide angles to its longitudinal axis.
Patent DE-3929829-A1 (DE)
Title: Heat treatment cooling for cylindrical steel parts and containers - has part in continuous variable speed rotation sprayed with water at varying rate to maintain precise temp. gradient
Inventor: HOFMANN GEORG DIPL ING
IPC: C21D1/62
Filed: 1989-09-05
Abstract: Parts of oil hardening steels have their outer surfaces cooled to at least 200 deg.C. while in continuous rotation. The horizontal axis of rotation is their long axis which is otherwise held stationary relative to the cooling equipment. Control of the process is disclosed in German patent app. P 3 809 645.5. This describes a cooling fluid flow which is reduced during the process at a controlled rate with a 30% redn. from begining flow at the "Leidenfrost" temperature. Nominal values are calculated or chosen from previous tests for use in the control loop. USE/ADVANTAGE - Heat treatment of drill rods or feed rods with enlarged ends for screw connection and parts with unequal cross section. A precise temperature gradient during cooling and energy savings on water heating.
Patent DE-3930656-A1 (DE)
Inventor: MUELLER BERND
IPC: E05G7/00
Filed: 1989-09-13
Abstract: The invention relates to a deposit box for valuables (1) such as is used by banks as a night safe. Here the problem arises that an unauthorised person may come into possession of a key and then pours in etching or burning fluid, for instance, and thus causes damage. To improve security it is proposed to provide a safety device consisting of a code reader (3) fitted at the entry (4) to an ante-chamber (7) which identifies a code (5) allocated to the container (2) to be filled and opens or actuates a locking or transport device (6) behind it in the entry direction only if the code is properly recognised.
Patent DE-3933125-A1 (DE)
Title: Electromagnetically operated positive displacement pump - has alternately energised coils controlling oscillating armature driving twin pistons with one-way valves for fluid transfer
Inventor: SCHIENLE MANFRED DIPL ING
IPC: F04B17/04
Filed: 1989-10-04
Abstract: The fluid pump (1) comprises two coils (12,14) mounted side by side on a common axis and encapsulated with their electrical contacts (20) in a cylindrical former (11).  The former (11) surrounding two pole pieces (17,18) which are bored to receive the inlet and outlet conduits (2,3) of the pump as well as two axially aligned pistons (31,41) connected to a central magnetic armature (16). By successively energising alternate coils (12,14) the armature (16) is caused to oscillate within guide tube (21) and as a result of one-way valves (25,34,46) a positive displacement fluid flow is maintained between suction and delivery ports (2,3). ADVANTAGE - High level of working efficiency with low power consumption, fast response and easily controlled via  switching frequency, airgap and end of stroke dampers, as quiet in operation.
Patent DE-3936218-A1 (DE)
Title: Welding thermoplastic foils - by contour electrode urging them on a heating element
Inventor: BOCKEN REINER
IPC: B29C65/18
Filed: 1989-10-31
Abstract: Thermoplastic foils are welded or severed by pressing them with a contour electrode against a metallic strip heating element, which is heated to the melting temp, of the plastic foils. The heat capacity of the heating element is designed for the melting heat required, but is limited to result in a spontaneous cooling below the fusion point. USE/ADVANTAGE - This combines high-quality welds and a good seam profile with a clean detachment of the welding tools without adhesion.
Patent DE-3939485-A1 (DE)
Title: Motor vehicle shock absorber - has device to increase damping force as load on vehicle increases
Inventor: DAUMANN RAINER DIPL ING
IPC: F16F9/342
Filed: 1989-11-29
Abstract: The shock absorber of the suspension system of a motor vehicle has a cylinder (9) with a piston (8) which divides the cylinder (9) into two chambers (5,10).  The upper chamber (5) is sealed by a spring-loaded disc (3) and the spring (2) functions as a volume compensating device. The damping force is generated by the restriction to flow of the hydraulic fluid through orifices (11) in the piston (8). The effective cross-sectional area of these orifices (11) is varied by small control pistons which tend to close the orifices (11) as the pressure of the hydraulic fluid increases due to an increase of load on the vehicle. USE - Motor vehicle shock absorbers.
Patent DE-4000636-A1 (DE)
Title: Hydraulic pressure operating element - has elastic element on piston end stop and piston by=pass
Inventor: JURR RICHARD
IPC: F15B15/14
Filed: 1990-01-11
Abstract: The operating element has a cylinder, with a piston, movable against an end stop, and with a pressure medium connection near this end. The stop (6), or the stop-sided end of the piston (4), carries a part (7), which is elastically flexible in the stroke direction of the piston. The cylinder jacket (1) has recesses (8-10) in front of the stop, which are covered by the piston, when this is in its end position under operational pressure. When the pressure exceeds that operational pressure, the recesses form a piston bypass. USE - Simple ventilation of hydraulic piston and cylinder element to remove unwanted air.
Patent DE-4019360-A1 (DE)
Title: Rotary and rocking pick=up holder for electric guitar - has two sets of fixing screws in plate for variation of location of pick=up w.r.t. strings
IPC: G10H3/18
Filed: 1990-06-18
Abstract: Long slots are provided in two rectangular sliding frames (1,2) for the fixing screws (12) of a pick-up holder plate (18). These can be adjusted, together with those (16) of the pick-up itself, to vary the height and position w.r.t. the strings (3). The plate is held in position additionally by springs (15). Noiseless and frictionless movements are aided by felted underlays (13,14). The pick up cable (19) is taken through a hole (9) drilled into the body of the instrument. ADVANTAGE - Tonal capabilities of the instrument are improved and different types of pick-up can be installed quickly and easily.
Patent DE-4022181-A1 (DE)
Title: Utilisation of scrap polystyrene foam - by disintegrating into coarse particles, feeding into hot air draughts in cement kiln to be incinerated and save heating
Inventor: ERHARD HELMUT DIPL ING
IPC: C21B5/02
Filed: 1990-07-12
Abstract: Polystyrene-based residues and/or scrap, and partic. expanded polystyrene from packaging or insulation applications, is recovered and is thermally treated in a cement kiln. The disintegrated material concerned is fed into a separator (cyclone or silo) which is located in the main or subsidiary heating system of a cement kiln, so that any sepd. material is drawn in (but without any additional air) to the current of gases between the main and subsidiary heating system and/or within the latter system itself. A mobile disintegrator reduces the scrap material to pieces less than 30mm wide and these are stored in a silo (2) at a cement works. Suitable quantities are drawn off (3) and blown to the separator (4) where the air stream flows out and is filtered and the solids are moved (6) so as to drop down through a cooling tower (7) between a furnace head (8) and clinker cooler (9). ADVANTAGE - The method makes it possible to provide part of the plant energy required from the plastic scrap, whilst the remaining energy is provided conventionally from the fossil fuel used. The procedure enables large quantities of plastic scrape to be used thermally.
Patent DE-4023444-A1 (DE)
Title: Cyanide-free copper plating process - where a portion of the plating bath is electrolysed by an independently-controlled insol. anode to reduce bath impurities
Inventor: KLINE GEORGE A
IPC: C25D21/18
Filed: 1990-07-24
Abstract: Electroplating Cu from an aq. alkaline CN-free bath employs both soluble and insoluble anodes and has an improved resistance to degradation. It comrpises (a) maintaining the main plating tank having at least one soluble anode and a main Cu-plateable cathode and an auxiliary cell which contains at least one insoluble anode and an auxiliary cathode; (b) removing at least a portion of the bath from the main plating tank and introducing it into the auxiliary cell in physical contact with the electrodes; (c) passing a current between the soluble anode and main cathode and between the insoluble anode and auxiliary cathode and independently controlling the current between each of these; and (d) returning at least a protion of the liq. in the auxiliary cell to the main tank.
Patent DE-4023652-A1 (DE)
Title: Ring-alkylated aniline derivs. prodn. - by isomerisation of N-alkyl-aniline derivs., on zeolite catalyst
Inventor: BEYER HERMANN DIPL CHEM DR
IPC: C07C209/54
Filed: 1990-07-25
Abstract: Ring-alkylated anilines of formula (I) are obtd. by contacting N-alkylanilines of formula (II) with an acidic zeolite catalyst in the presence of H2 and/or an inert gas at 300-450 deg.C, 20-100 bar and 0.1-1.5 LHSV (where R1 = 1-4C alkyl; R2 = H or 1-4C alkyl).
Patent DE-4024586-A1 (DE)
Inventor: STOCKER JOHANN DIPL ING
IPC: C23C4/18
Filed: 1990-08-02
Abstract: A process for the automatic melting of thermally sprayed surfaces is proposed, in which the disadvantages of known processes of this type (manual and semiautomatic melting) are overcome. This is achieved by a method in which a parameter relevant for the melting process is measured using a non-contact sensor system on a part of the area which has just been subjected to the melting process by a melting burner and, starting from this measured value, the amount, which in fact may be dependent on the material thickness, type and form, is suitably controlled.
Patent DE-4029715-A1 (DE)
Inventor: FISCHER DIETER DIPL ING
IPC: F23G7/08
Filed: 1990-09-19
Abstract: The present invention relates to a flare burner with a central gas duct (1) for flare gas, a windscreen (2) surrounding at a distance the upper end of the gas duct (1), pilot burners (3) arranged inside the windscreen, and with a supply device for breathing and ventilation gas. In order to provide a flare burner with the features mentioned in the introduction, which has lower burn-out losses and moreover also produces a smaller quantity of harmful waste gases, it is proposed according to the invention that the supply devices are pipes arranged close to the inner wall of the central gas duct (1), the diameter of which is small in relation to the diameter of the central duct (1), the number of which is at the most equal to the number of the pilot burners, and the outlet openings of which open below the pilot burners (3). <IMAGE>
Patent DE-4030930-A1 (DE)
Title: Magnetostatic coding system for surveillance sensor and actuator -  uses modular HF transmission system with synthesised amplitude spectrum defining code
Inventor: ROTHE LUTZ DR SC TECHN
IPC: G07C9/00
Filed: 1990-09-29
Abstract: The coding system uses synthesis of a HF transmission path via a given number of modular transmission elements each with a defined amplitude spectrum determined via a pre-magnetised single crystal, gyrotropic resonator and spectral separation provided by programmable synthesis of the amplitude spectrum characteristics dependant on the code. The code is identified by amplitude spectral analysis of transmitted HF signal, to allow relevant secondary functions to be initiated. ADVANTAGE - High security with min complexity.
Patent DE-4036875-A1 (DE)
Title: Improving workability of wood, partic. for pencil or crayon mfr. - by subjecting wood to pressure with gas in pressure vessel then suddenly decompressing vessel
Inventor: HANDL WERNER
IPC: B27K5/00
Filed: 1990-11-19
Abstract: Workability of wood is improved by subjecting it to pressure in a pressure vessel with a gas or gas mixt. then suddenly decompressing the pressure vessel. Woods prods. readily workable mechanically, starting material of which has been processed as above, the wood fibres having completely or partly broken open, shattered or gradually destroyed cell structure, partic. writing or drawing pencils or crayons with shafts or casings or such treated wood. ADVANTAGE - Yield and quality of woods conventionally employed, e.g., cedar, are improved, core wood can be used as well as sapwood; treated wood of quick growing, pest-resistant trees of temperate zones such as poplar can also be used satisfactorily, minimising cost and consumption of rain forest timber. Wood is introduced into vessel in precut or in final form. Wood has moisture content 10-60%. Pressure in vessel is 5-150 bar. Wood is subjected to pressure for 2-60, partic. 5-30, minutes. Gas is N2, O2 and/or He, or air. NHs is added to gas. Wood is permeated inside pressure vessel with impregnating agent (I) and/or colouring agent (II), subjected to pressure, vessel is decompressed after predetermined time, then excess (I) and/or (II) is pumped off. (I) is polyglycol. (II) is natural water-sol. dyestuff, partic. quebracho extract. (Dwg.0/0)
Patent DE-4101041-A1 (DE)
Title: Electrical power supply plate with rail mounting - has inset contacts clamped against plate contacts for supply of lighting equipment mounted on rail at selected location
Inventor: STEFFEN PETER
IPC: F21V21/34
Filed: 1991-01-16
Abstract: A power supply rail of the type used to supply a suspended lighting units is formed with a pair of T-shaped slots located in the centre. On one or both sides of the T-slots a pair of narrow slots provide contact inserts. The power supply is introduced to the rail by a plate (1) having formed projections that mate with the slots in the rail. Serrated contact clips (9) are inset in recesses (8). The serrations engage the ends of power supply wires (3) for good contact. The plate is secured by a screw (11) engaging the T-slot. ADVANTAGE - Allows transformer to be positioned at selected point.
Patent DE-4101288-A1 (DE)
Title: Combined car sliding roof and spoiler - has actuating mechanism with swivel arm with rotary drive pinion at one end, rotating about parallel axis
Inventor: BOOMSMA HARMEN
IPC: B60J7/057
Filed: 1991-01-17
Abstract: The car sliding roof also serves as an aerodynamic spoiler. The sliding roof is actuated by a swivel arm (14) which has a driving mechanism (7) attached to its inner end. The initial movement of the mechanism raises the rear end of the sliding roof above the adjacently edge of the fixed roof. Continued movement of the driving mechanism drives the sliding roof rearwards so that it slides over the rear part of the fixed roof and forms an opening in the front part of the fixed roof. ADVANTAGE - Simple and robust roof design.
Patent DE-4105799-A1 (DE)
Title: Grinding outer surface of tube - using two spaced abrasive bands wrapped round tube and reciprocated out of phase by linear end drives
Inventor: HANDSCHICK BERT DIPL ING
IPC: B24B23/04
Filed: 1991-02-23
Abstract: Two parallel spaced abrasive bands (5) are wrapped round the tube. They are fastened at oen end to out-of-phase reciprocating drive plates (4), and at the other end to the ends of a rocker lever (6) centrally pivoted on a bracket (8). An opposing support to the abrasive bands is provided by a scissors linkage (9) with spherical rollers (11) bearing against the tube. The tangent angle of the band end extensions can be varied either or the drive plate or rocket lever ends, and the bands can be tensioned by elastic elements either at the band ends or in the supporting scissors linkage. The drive plates are driven through a motor and gearbox (2, 3). USE/ADVANTAGE - Grinding outer surface of tube. Inaccessible parts of tube can be reached. Equipment is easily mounted and traversed on tube. Grinding swarf is driven from contact zone.
Patent DE-4110069-A1 (DE)
Title: Container concealed chemical detector - heats container and forms thermal image of container surface for comparison with stored image or temp. distribution
Inventor: WEIGEL ULRICH DIPL ING
IPC: G01V9/00
Filed: 1991-03-27
Abstract: In the method, the container in which the chemicals are to be detected is heated to a defined temp. A thermal imaging camera or suitable sensors are used to form a thermal image or temp. distribution of the surface of the container. A discriminator, e.g. a microprocessor, compares the results of the detection with existing images or temp. distributions and outputs the results. USE/ADVANTAGE - For detecting unknown chemicals in containers without opening or damaging containers or using specially trained sniffer dogs.
Patent DE-4110540-A1 (DE)
Title: Wind-operated power generator - has profiled axial blades in ring around rotor with convex-curved surfaces leading
Inventor: SISIRAK ADIL
IPC: F03D3/06
Filed: 1991-03-30
Abstract: Wind-operated power-generator has a rotor turning in bearings. Similar profiled blades extend in the axial direction of the rotor and at regular intervals so as to form a blade ring. These each have a profiled supporting surface, with its convex-curved side protruding in the direction of rotation. Each blade can have one thick lengthwise edge extending towards the rotor centre, and a thin opposite one. There can be a cylindrical component impervious to air, coaxial to the rotor and in the space between the centre and the blades, a gap being left between it and the blades. The entire outside surface of the latter can be of non-corroding material, preferably metal, with the interior filled with polyurethane. ADVANTAGE - Converts maximum of kinetic energy of wind into rotational energy.
Patent DE-4113497-A1 (DE)
Title: Toilet cistern with floor valve - has combined ballast-suction lifter, covering intakes in stand-pipe in bell-shape
Inventor: GOEBBEL JOHANN DIPL ING
IPC: E03D1/14
Filed: 1991-04-25
Abstract: The cistern has a floor valve (21), which is opened/closed by a standpipe (18). This is raised/lowered by a brake float unit (19, 20). A ballast device is fastened near the top of the standpipe, in such a way, that its weight is reduced while being lifted out of the fluid level. The ballast device is further constructed as a combined ballast-suction lifter (1, 2, 3). It encloses one or more intakes of the standpipe, like a bell. The device has a ballast fluid tank (12), with adjustable discharge openings. The tank is formed as a ring chamber, enclosing the standpipe at a distance. ADVANTAGE - Short lifting of standpipe is sufficient for effective short flush.
Patent DE-4119199-A1 (DE)
Title: Yarn folding frame - has tangential belt spindle drive with equalising equipment for reverse twist
Inventor: KIMURA TATSUO
IPC: D01H1/241
Filed: 1991-06-11
Abstract: The spindle drive on a yarn folding frame has a tangential belt along the frame. Reversal of drive is required for the opposite way of twist. Pressure on the belt is arranged to be applied at each side of the frame, regardless of the direction. ADVANTAGE - The efficiency of the drive and avoidance of wear to the belt depends on the pressure applied. The tension devices are designed to equalise tension for either direction, without having to make changes to the equipment.