baber/WOPTO huggingface dataset:
Patent DE-4008303-A1 (DE)
Title: Auxiliary transmission with gearchange - consists of intermediate plate between main housing flanges and second housing, for clutch coupling
Inventor: OSTERLOFF KURT
IPC: F16H3/78
Filed: 1990-03-15
Abstract: The auxiliary transmission (1) within the whole gear housing of a multi-threaded alternating gear incorporates a planetary wheelgear (11) in the main housing (20), and the clutch (15) of the auxiliary transmission (1) in a second housing (30). At least one gear-section (16) is fixed to the auxiliary gear housing. Between the flanges (210) on the main housing (20) and on the second housing (30) extending outwards is an intermediate plate (4) supporting the gear-section or coupling (16) of the clutch (15). USE/ADVANTAGE - The incorporation of an intermediate plate avoids back-tapered flanges on the gear housing, with the intermediate plate transmitting high torques from the coupling to the gear housing.
Patent DE-4010055-A1 (DE)
Title: Furniture convertible from cupboard to table - has upright table plate hinging on vertical and horizontal axes and having compartments
Inventor: WOLFF STEFAN DIPL ING
IPC: A47B85/08
Filed: 1990-03-29
Abstract: The furniture article is convertible from a cupboard to a table. In the rest position the table plate (1), which is divided into two or more parts, is upright, the parts including an angle. By turning them about one or more vertical axes (3) and then about a horizontal one (4) they are brought into the working position. The table frame components (2,5) form containers for articles and which can be shut off on all sides. ADVANTAGE - Forms movable dining table for eight or more, while remaining useful and occupying little space at other times.
Patent DE-4010150-A1 (DE)
Title: Floor-mounted electric heater - with heating element inside insulated plate onto which chair is placed
Inventor: AUGUSTIN HANS-ULRICH
IPC: F24D13/02
Filed: 1990-03-29
Abstract: The heating element (1) is sandwiched inside a plate structure onto which the chair is placed. This provides direct heating for the chair occupant, due to convection, without having to heat the entire room. The plate has a lip (2) to prevent the chair from slipping off. The plate has an underlay (3) of insulating material to protect floor coverings and to insulate the heating element.  The top cover plate can be metal and with earthing straps protects against short circuits. An insulating cover layer (4) completes the unit. ADVANTAGE - Efficient heating in localised areas, low running costs, safe.
Patent DE-4012060-A1 (DE)
Inventor: TAKAHASHI TAKASHI
IPC: F16H37/02
Filed: 1990-04-13
Abstract: A continuously variable transmission comprising at least two rotary discs (4a, 4b) facing each other with a space therebetween in the axial direction; at least one roller (5) supported between the rotary discs in the presence of oil, the roller being mounted on a rotary shaft (6) extending in the direction orthogonal to the axial direction of said rotary discs, and supported so as to be movable in the axial direction of the rotary shaft (6); and a pressurizing mechanism (20a, 21a, 20b, 21b) applying its load to said rotary discs so as to compress said roller strongly, said rotary discs being interconnected to one of input and output shafts (2, 3), said roller being interconnected with the other of the input and output shafts (2, 3). There may be three discs and two sets of rollers in an alternative embodiment. The pressurizing mechanism is preferably hydraulically actuated. <IMAGE>
Patent DE-4013094-A1 (DE)
Title: Protecting catalytically treated plastic plate from solvents
Inventor: BAYES MARTIN
IPC: H05K3/18
Filed: 1990-04-25
Abstract: During the treatment of plastic-metal laminates which are to used as electric printed circuit boards, the catalytically treated surface are subjected to treatment with an accelerator followed by a reducing agent and finally heat treated over a certain time period before being subjected to electroless metal plating. Pref. the reducing agent is selected from alkylaminoboranes and alkali metal borhydrides. The plastic surface is catalytically treated with an acid Pd-Sn catalyst and the reducing agent is DMAB or sodium borhydride. The accelerator is an acid solution. When using 10 g/l aqueous DMAB solution as reducing agent the pH is approx. 11.
Patent DE-4015063-A1 (DE)
Title: Membrane controlled differential pressure regulator valve - has internal spring biassing system for valve plate actuator membrane, e.g. for hot water heating system
Inventor: MEDVESCEK MILAN
IPC: G05D16/06
Filed: 1990-05-10
Abstract: A membrane-controlled differential pressure regulator valve has a regulator housing contg. a valve seat and a valve plate connected via a piston rod to a membrance dividing a chamber into minus (8) and plus (10) press. chambers. A spring arrangement biassing the membrane away from the seat consists of one coil spring (9) in the minus chamber supported on the regulator housing and membrane plates (17,19) and another (11) in the plus chamber supported on the membrane plates and an axially movable plate (12) with an actuator spindle (14). USE/ADVANTAGE - Esp, for hot water heating system. Internal spring mounting is achieved without degrading adjustability.
Patent DE-4016382-A1 (DE)
Title: Electric heating device for dental appts. - has several outlets for connection to different instruments controlled via magnetic valves
Inventor: HERTER KARL
IPC: H05B3/14
Filed: 1990-05-21
Abstract: The heating device is used for relatively small quantities of a given medium, e.g. air and water, using positive temp.  coefft. cold conductors as the heating elements.  The device has a series of outlets (38) for connection to respective instruments. Pref. each outlet (38) has an associated magnetic control valve (40), or alternatively a number of outlets (38) are controlled in common. ADVANTAGE - Allows air and water mixt. to be heated to precise temp.,
Patent DE-4016946-A1 (DE)
Title: Large sintered ceramic component mfg. - by breaking sintered body into segments at most fragile zones by thermal shock to be reassembled with mechanical bonding
Inventor: WINEBERGER WENDELIN
IPC: B28B17/00
Filed: 1990-05-25
Abstract: To form large shaped components with improved resistance to thermal shock, especially of sintered ceramics, the component is initially formed into the required shape which is then sintered followed by any necessary finishing. A thermally induced tension is applied at the most fragile sections of the sintered component, to break it into separate segments. The segments are finally bonded together mechanically into the complete component, together with any necessary finishing. Before the shaped body is sintered, the most fragile sections are marked by scratching or notching. The thermally induced tension is applied to the most fragile zones of the component, while the sintered body is still hot, using a cold water stream. The sintered body is cooled to the required temp, for shock separation into segments while the sintered component is washed. ADVANTAGE - The components are resistant to thermal shock, and are easily produced with min. working.
Patent DE-4018432-A1 (DE)
Title: Lifting device for projector - comprises frame body with several screw shaft sections at corners
Inventor: ISHIBASHI TOSHIHIDE
IPC: B66F7/14
Filed: 1990-06-08
Abstract: The screw shaft sections (8) run vertically, so that with the aid of bearings (81, 82) arranged above and below they are not rotatable around their axes. A drive device (9) rotates the screw shafts by means of transmission equipment (92, 93, 83) simultaneously and in the same direction. Via nuts (13) fitted in a lifting plate (12) and threaded onto the screw shafts, the plate can be raised or lowered when the screw shafts are rotated. In this manner a projector (2) fitted on a retainer plate (14) connected to the lifting plate (12) can be brought to different positions above or below an intermediate ceiling. USE - To raise a projector to different positions.
Patent DE-4019197-A1 (DE)
Title: Blood sampling or injection needle - is designed to prevent blood leakage
Inventor: BANNERMAN CHARLES DR MED
IPC: A61M5/32
Filed: 1990-06-15
Abstract: A blood sampling or injection needle, designed to prevent undesired blood leakage during use, consists of a special steel tube and a plastics part, e.g. a spring-biased inner cylinder and rigid outer cylinder or a 2-way shut-off valve. ADVANTAGE - The needle can be used with conventional syringes for blood sampling and for injection, and avoids blood leakage and thus cross-infection.
Patent DE-4025432-A1 (DE)
Title: Distance measurement system esp. for hydraulic cylinder - has conical measurement element varying air gap by moving w.r.t. annular coil
Inventor: BARTHOLOMAEUS REINER DIPL ING
IPC: G01B7/02
Filed: 1990-08-10
Abstract: A distance measurement system has an inductive transducer with a measurement element (75) which varies a measurement inductance by varying an air gap (56) during relative motion w.r.t.  the inductance. The inductance has a measurement or annular coil (50) guiding magnetic field lines (55) radially inwards via the air gap to the measurement element. Esp. for use wtih a hydraulic cylinder (1), the measurement element is conical and moves through the fixed measurement coil to vary the measurement gap. ADVANTAGE - Can be economically integrated into differential cylinder without extending its length.
Patent DE-4029681-A1 (DE)
Title: Metal electrode face type ceramic component -  has end caps in contact with outer electrode having gaps in top and bottom surfaces
Inventor: OITZL KURT DIPL ING
IPC: H01C17/00
Filed: 1990-09-19
Abstract: The surface-mounted ceramic component of chip or metal electrode face type has a cylindrical core (1) of ceramic, plastics or glass, enclosed by an electrically conductive layer (2) forming an inner electrode. This is enclosed by an active ceramic layer (3) of a suitable thickness, carrying a conductive layer (4) forming an outer electrode. A metal cap (5) is fitted over two opposite edges. The top and bottom surfaces of the outer electrode are interrupted, the gaps (7) altering the value of the active surfaces. Alternative designs use different contact arrangements between the electrodes and the edge caps. USE/ADVANTAGE - For NTC and PTC thermistors, varistors and capacitors. Accurate control of properties.
Patent DE-4031245-A1 (DE)
Title: Disc brake incorporating microswitch - has housing wall of brake with switch element coupled to movement of armature disc
Inventor: MEISTER RUDOLF DIPL ING
IPC: F16D59/02
Filed: 1990-10-04
Abstract: The disc brake has an axially adjustable armature disk (18) pressed against a statable braking disc (8) with simultaneous operation of a electromechanical switch (20) attached to the stationary disc brake housing. The latter switch (20) is incorporated in the housing wall with a movable operating element (23) projecting from the latter and compled for movement with the armature disc (18). Pref the switch operating element (23) comprises a switch pin fitting in a bore in the armature disc (18). USE - Vehicles disc brake incorporating microswitch.
Patent DE-4034704-A1 (DE)
Title: Protective cover for car carried bicycle
Inventor: FEICHT JOSEF
IPC: B60R9/10
Filed: 1990-10-31
Abstract: The protective cover for bicycles etc. is of strong plastics foil, forming a cowl fitting over the bicycle. It encloses at least the pedal bearings, derailleur and chain, and is splash-proof all round. It has a detachable fastener on one or both sides, also splash-proof when shut, e.g. a sliding clasp or hook-file fastener.
Patent DE-4037867-A1 (DE)
Title: Upwards-opening garage door - has guides on brackets holding it above lintel bottom edge when open
Inventor: BORNHUETTER DIETER
IPC: E05F15/686
Filed: 1990-11-28
Abstract: The door for the rectangular doorway of a garage etc. swings upwards behind the lintel (3), where there is a niche (7) in the roof. Its leaf (10) has rotary guide members at the top and bottom corners, the bottom ones working in rails (3) extending upwards, and the top ones in rails (32, 32) running horizontally. A counterbalancing mechanism (40) is provided for the leaf weight. The rails (30) extending upwards slope upwards to the niche from a position clear of the bottom leaf corners. The horizontal rails run from a point immediately below the linetal towards the interior (1), crossing the first rails near their top ends. Thus short sections (31) of horizontal rail are formed (31) from the leaf end to the crossing point, and long ones (32) between the latter and the interior. The bearings of the corner guides are secured to the leaf corners via brackets (13, 14) of length (L1, L2) such that in the top position the leaf is above the level of the lintel bottom edge (4, 5). USE/ADVANTAGE - No obstruction of doorway by leaf when open.
Patent DE-4039931-A1 (DE)
Title: Suspension system for portable power tool - has finger rest on tool so that tool can be lowered without need for gripping
Inventor: BRENDEL HORST
IPC: B25H1/00
Filed: 1990-12-14
Abstract: The tool (1), which may for example be a powered screwdriver, is held above the work station by the spring suspension system (2,4) and must be pulled down to the working position by the operator's hand. To avoid the necessity for dripping the tool a finger rest (6) is fixed to the lower end of the tool. The thumb and fingers then need only form a vee in which the tool is guided. Downward pressure on the finger rest lowers the tool without the need for dripping between thumb and fingers. USE/ADVANTAGE - Reduces strain and fatigue in repetitive work.
Patent DE-4100306-A1 (DE)
Inventor: ZEISE CHRISTIAN DR
IPC: C11D17/06
Filed: 1991-01-08
Abstract: Described are free-flowing dry concentrates with a long shelf life, consisting of coarse-grained compacted particles and containing fine-grained components (a) without marked adhesive or bonding properties and fine-grained adhesive components (b) with marked adhesive or bonding properties, the compacted particles being formed substantially in the absence of shearing forces. The compacted particles contain microdispersed air, thus giving the compacted particle a greater internal surface area and hence a higher rate of dissolution.
Patent DE-4105602-A1 (DE)
Inventor: STOECKIGT DIETER
IPC: C11D1/825
Filed: 1991-02-22
Abstract: A mixture is disclosed of at least two alkoxylated alcohols and having the formula (I), in which x is a number between 1 and 12 and y is a number between 1 and 15. One alkoxylated alcohol has as residue R a straight-chain or branched-chain C8-C18-alkyl group and the other alkoxylated alcohol has as residue R a straight-chain or branched-chain C10-C20-alkyl group, but the average number of C atoms in the residues R must differ by at least 0.5, whereas the ratio between both alkoxylated alcohols is comprised between 10 : 90 and 90 : 10. This mixture is suitable as an antifoam tenside additive in cleaning products for machine washing processes.
Patent DE-4121677-A1 (DE)
Title: Optic fibre coating - has pressure control using computed nominal value according to drawing speed and coating requirements
Inventor: LYSSON HANS-JUERGEN DIPL ING
IPC: C03C25/12
Filed: 1991-06-29
Abstract: To coat an optic fibre in a pressure coating vessel, the pressure (p) to deliver a supply of coating varnish is controlled so that the functional connection between the draw speed (v) of the optical fibre and the pressure (p) in the coating vessel (2) is used as a nominal value (s) for the pressure control (4), through a computer unit (3). Pref. the actual pressure (p) is transferred from a pressure monitor (6) to the input of the comparator at the control (4). The drawing speed (v) is passed online to the computer (3). The computer (3)takes one of a number of characteristics held in the system, according to the coating requirements, to generate the appropriate nominal value (s). A setting value generated by the control (4) is passed to a setting valve (7) to set the pressure (p). ADVANTAGE - The control action gives an even coating of resin over the optic fibre.
Patent DE-4123288-A1 (DE)
Title: Crystalline silica granulate treatment with supercritical liquid - esp. hydrothermal water to remove inclusions and cause fracture along planar surface
Inventor: KNOF REINHARD
IPC: C01B33/12
Filed: 1991-07-13
Abstract: The process concerns treatment of crystalline SiO2 granulate (I) with a particle size less than 5 mm for subsequent use as granulate for the prodn. of high grade quartz glass, esp. for use in the optical and semiconductor industries, for surface cleaning or for the prodn. of small quartz granules with at least one planar surface. The novelty is that (I) is treated with a supercritical liquid (II), esp. hydrothermal water (IIA). USE/ADVANTAGE - Losses are minimised and the use of HF is avoided. The ratio of inclusions removed to crystalline SiO2 dissolved is much greater than usual. Treatment with (IIA) causes large checks along planar surfaces.
Patent DE-4123643-A1 (DE)
Title: Bicycle with sprung wheels - has each damper connected to its pressure accumulator via manually-operated valve
Inventor: KLEINBREUER PETER
IPC: B62K25/04
Filed: 1991-07-17
Abstract: The bicycle has front and rear wheels each spring-mounted via a shock-damper on the frame. The dampers are connected to a pressure accumulator acting as a spring. Each damper has a pressure accumulator, and to which it is connected via a manually-operated valve (21). Each accumulator can have a gas pressure chamber, and the valves can be movable between the shut and free-flow positions. USE/ADVANTAGE - Suspension damping system on bicycle is easily adaptable to different working conditions.
Patent DE-4123690-A1 (DE)
Title: Sealing membrane for gas in accumulator - consists of inner and outer layers of elastomer bonded together round edges, leaving intermediate space at least half filled with oil
Inventor: BOROWITZ JUERGEN DR ING DR
IPC: B29C45/00
Filed: 1991-07-17
Abstract: Gas-tight membrane e.g. to seal a gas over oil in an hydraulic accumulator, has inner and outer layers which are bonded together in places to form a liquid-tight space between them and this space is at least half filled with a liq. The membrane has the outer layer (2), the inner liner (3) and the intermediate space (4) filled with e.g. an oil. As an hydraulic accumulator it seals off the gas chamber (7) from the oil-filled chamber (8) and it is held in position by the clamping ring (9) which fits between two ribs (10,11). The membrane is produced by a type of two-stage injection moulding process (resembling tennis ball prodn.) in which the outer and inner layers are moulded and cured and also bonded together at the edges, so leaving an internal space. After curing and deflashing, the oil filling is injected through a suitable needle. ADVANTAGE - The prod. uses a liq. as a seal and this liquid can follow every elastic shape taken up by the membrane and hence maintains its gas-tightness.
Patent DE-4127446-A1 (DE)
Title: Space-saving portal robot with additional carrier-arm movement - has a double grab attachment on a carrier arm that can move linearly 500 mm at right-angles to the bridge, all movements being NC controlled
Inventor: NERGER KLAUS K DIPL ING
IPC: B25J9/02
Filed: 1991-08-16
Abstract: The portal robot incorporates fixed legs (1) supporting a bridge (2) upon which travels a carriage (3) having a vertically sliding column (4). At the base of the column (4), mounted on a powered slide providing movement in the Y direction, is a carrier arm (5). The arm (5) carries a grab unit (6) with two heads (7) fixed at right angles to each other but which can rotate together 180 deg. (P) about a vertical axis and 270 deg. (E) about the Y axis. USE/ADVANTAGE - Portal-type robot provides more positive and accurate engagement of the grab with tools in racks and allows tools and/or parts to be stored at closer centres.
Patent DE-4200762-A1 (DE)
Title: Tooth vitality testing device for dentistry - uses transparent tube filled with dry ice
Inventor: STAEUBLI HUGO
IPC: A61B18/02
Filed: 1992-01-14
Abstract: The testing device uses a tubular receptacle which can be filled with dry ice, upon insertion in an open filling chamber (11). The receptacle (1) comprises a transparent tube clamped in the filling chamber (11), so that it is centred with a dispensing jet (15) for the dry ice. A number of vent holes (8) are provided along the length of the transparent tube, to ensure easy filling. A pushbutton is electrically connected to a magnetic valve over a cable for accurate dosing. USE - For testing vitality of tooth pulp using reaction to cold.
Patent DE-4204777-A1 (DE)
Title: Zonal single crystal growth with increased temp. gradient control - uses heat screens and sepd. heater elements to control and alter the solid-liq. interface position
Inventor: KOBAYASHI SUMIO
IPC: C30B15/00
Filed: 1992-02-18
Abstract: Single crystalline material (8) is formed by controlled pulling of a seed crystal (7) from melt (L), contained in a crucible (31,31a), which contains a liquid (L) and a solid (S) region of the material. The features of the puller are; the crucible, with a cylindrical shape and a height to dia. ratio of at least 0.85, is surrounded by several e.g. 2 independently controlled elements (32,33), the crucible is surrounded by radiation screens (36), with a reduced thickness in the lower part (36a,b), at the level of the heaters (32,33) and by heatscreens (34,35) above the level of the crucible, the crystal pulled is screened from radiation by a heat-shield in the form of a truncated cone (41) which is supported on a cylindrical screen (34,36d). A process flow is also claimed. Pref. the crucible is filled with solid raw material, which is melted using several heating elements arranged at various heights surrounding the crucible. Then the lower part of the crucible content is solidified by deactivating at least one of the heaters, including the lowest. The lowest element now screens the crucible bottom from heat radiated by the uper element(s). The height of the solid/liquid interface is set by the heater element control and crucible vertical position. The seed crystal is pulled and can be rotated independently of the crucible, the rotation speed of which, pref. 5-15 rpm., is used to control the oxygen content of the single crystal. During the pulling of the single crystal the position of the liquid/solid interface is changed by melting. USE/ADVANTAGE - Prevents variation of the impurity concn. in the single crystal by controlling the impurity concn. in the melt. This is done by remelting solid material present in the bottom of the crucible as the crystal is pulled up, i.e. using molten zone crystal growth with a variable thickness zone. Produces crystals with improved impurity distributions. The disadvantages of lower O-concn. than Czochralski pulled crystals is reduced by controlled rotation of the crucible, which is made of quartz. Gives improved yield. The improved heat screening prevents cracking of the crucible by controlling the solid/liquid interface position and preventing solidification in other regions. The use of a heat shield round the crystal prevents damage induced by radiated heat from the crucible.
Patent DE-4205742-A1 (DE)
Title: Holding tongs for winding EM core - have cooperating tong plates providing guidance for conductor wire wound onto core
Inventor: GUSTAFSON AKE
IPC: H01F41/076
Filed: 1992-02-25
Abstract: The holding tongs (3) have at least one guide needle (39a) for the conductor wire (23) wound around the core. Each of the two cooperating tong plates (30,31) is formed so that a metallic area (12a) of the coil former head (11) is accessible, the front face (30b) of one (30) of the tong plates pref. acting as a wire guide for the conductor wire. The ends of the conductor wire can be soldered to the metallic areas at each end of the wound core. USE - Automatic coil winding machine.