baber/WOPTO huggingface dataset:
Patent DE-4119519-A1 (DE)
Title: Transport and surface treatment of semiconductor materials - uses moving belts inside modular treatment chambers with movements which optimise the process to reduce contamination and cost
Inventor: BERGLER ALFRED DIPL ING
IPC: C30B33/00
Filed: 1991-06-13
Abstract: The treatment of polycrystalline semiconductor grade material, including etching, cleaning and drying, is carried out inside reaction chambers, pref. hermetically closed by a lid and contg. an exhaust, where the material is moved about using continuous belts. The chambers are pref. modules which can be used singly or in combinations. The material is constantly being moved to expose all surfaces to the media, and can be passed through multiple reaction chambers. Pref. chamber media are baths of mineral acids or acid mixts., caustic solns. or mixts. of these, organic bases or mixts. of these or watery rinsing solns.. Also claimed is the use of heating by radiation, convection or microwave energy. The belts used are pref. a type of link-belt or a perforated plastic belt, using a non-contaminating material, e.g., Si or PVC, polypropylene, polyethylene or polyvinylidenefluoride. The transport belts are pref. inclined under an angle of 0-50 deg.. USE/ADVANTAGE - The avoidance of metal in transport reduces the contamination of the pieces of semiconductor material with conventional tool and container materials, e.g., Fe, reducing the amt. of material that needs to be etched off in cleaning. The absence of crushing stages reduces the prodn. of fine grained material. This reduces the transfer of liq. reaction chamber treatment medium from one chamber to the next and so reduces the cross contamination and material usage with consequent further cost redn.. The process is used in the mfr. of Si semiconductor material for use in crystal growing reactors.
Patent DE-4121004-A1 (DE)
Title: Commutating circuit for thyristor railway track switches in supply to DC path - contains central clearing device connected to thyristor groups via clearing groups each contg. clearing thyristor and capacitor
Inventor: GERLACH HORST DR ING
IPC: H02M1/06
Filed: 1991-06-21
Abstract: The circuit for clearing a thyristor switch in a rectifier network connected to a three-phase and/or a d.c. bus bar contains a central clearing device connected to the bus bar which is connected to the thyristor (THS) cathodes via a bus line (FL) and diodes (FD). There is an additional braking loop line connected to the bus bar side of the clearing device. The arrangement consists pref. of two clearing groups, each with a clearing thyristor (THL) and capacitor (CL). USE/ADVANTAGE - For use in supplying d.c. current paths from three-phase or d.c. sub-stations. Circuit for forced thyristor clearing contains fewer components than conventional ones and is thus cheaper.
Patent DE-4122976-A1 (DE)
Title: Driving IC engine - by ignition of continual series of explosive units pref. of safety explosive in rolled paper tape supplied in cassette
Inventor: SAGEL HANS DIPL CHEM DR ING
IPC: F02P23/00
Filed: 1991-07-01
Abstract: Ignition of a continual series of explosive or propelling compsn. units of definite size is used for driving i.c. engines. Pref. the units are enclosed in a narrow doubled roll of paper or other thin-film material. The rolls are placed in cassettes, from which they are unwound, the size pref. being suitable for drives of 500-1000 km and more. The explosive may be solid, plastic or granulated form. It pref. is a weather-proof safety explosive which leaves no combustion residue and pref. is sensitised with boosters, eg. borax. USE/ADVANTAGE - The system is esp. usefgul in a Wankel engine, which normally has a high fuel consumption, even when modified to give an absolute seal.xp
Patent DE-4123031-A1 (DE)
Title: Shield drive for mining machine - has pair of excavator arms fixed to cutting head with which heaped material is cleared away from pivot range of arms and fed to loader
Inventor: STUCKMANN DIETER
IPC: E21D9/11
Filed: 1991-07-12
Abstract: The clearance arm consists of an excavator arm (22) with a blade (25) reversibly movable in the direction of the work face (11). The excavator arm is located by a pivot drive (27) in an articulation (23) crosswise  to the shield axis on the cutting head (6).It is formed as a link arm divided into a bend articulation (24). The clearance blade (25) of the excavator arm is located pivotably on the arm by a pivot drive (29) crosswise to the shield axis in an articulation (26). The excavator arm(s) 22 is are located between the cutting arms (13) on the cutting head (6). USE/ADVANTAGE - For rock-drilling operations, with the clearance arm consisting of an excavator arm with clearance blade moving to and from work face.
Patent DE-4125571-A1 (DE)
Title: Turbo-mill grinding inorganic material - has loading chute mounted on one side of rotor driving shaft
Inventor: EBERT HELMUT DIPL ING
IPC: B02C13/288
Filed: 1991-08-02
Abstract: The turbo-mill for grinding inorganic material has two rotors (2a,2b), which are mounted inside the grinding chamber (8) and rotate in opposite directions. Each rotor has a number of concentric rings of blades with the rings of blades of one rotor fitting between the rings of blades of the other rotor. The material to be ground is loaded into a chute (6) which is mounted on one side of the driving shaft (7) so that the material enters the grinding chamber in a tangential stream and generates a swirling motion inside the grinding chamber. This swirling motion rotates in the same direction as the innermost ring of blades (3e). USE - Grinding of inorganic material.
Patent DE-4135693-A1 (DE)
Title: Road traffic routing system - consists of partially ring-shaped traffic lanes, so that drivers do not change lanes, when driving out of system
Inventor: PFEIFER WERNER
IPC: E01C1/02
Filed: 1991-10-25
Abstract: The traffic routing system is for improvement of traffic safety, in a mainly ring-shaped traffic system, which has other traffic routes opening into it/branching off it. The circular system, e.g. roundabout, has inset elements or colours, to limit individual lanes in the roundabout. The elements (1) are mounted in the shape of a spiral, so that the traffic lanes (4) also extend in a spiral. In direction of travel, the elements/colours are at increasing distance to the centre (2) of the roundabout (3). The relative distance of the elements, at right angles to the lanes, remains constant. Elements/colours are reflective. USE/ADVANTAGE - Modified road roundabout marking system guides vehicles to outside and gives reduced accident rates.
Patent DE-4201043-A1 (DE)
Title: Plate for holding two adjacent vertebrae in correct position - has open-ended slots to locate plate relative to repositioning rods
Inventor: ULRICH HEINRICH
IPC: A61B17/70
Filed: 1992-01-17
Abstract: The plate, for holding two adjacent vertebrae in their correct positions relative to each other, is of rectangular form with a recess (16) formed in the middle of each long side. The plate has four holes (8) for screws for fixing it to the vertebra. Each hole is near a rounded corner of the plate. An open-ended slot (10) extends inwards from each short side. The slots are arranged symmetrically about the major axis (2) of the plate and their inner edges (12) are positioned so that they abut against the repositioning rods which are screwed into each of the two vertebra. ADVANTAGE - The plate retains the vertebrae in the position fixed by the repositioning rods.
Patent DE-4210746-A1 (DE)
Title: Four=stroke IC-engine - has cylinder liner, to replace intake or exhaust valve, with turned collar, subjected to hydraulic flow for displacement
Inventor: PALIGE ERWIN
IPC: F01L9/10
Filed: 1992-04-01
Abstract: The Diesel or Otto engine has a controlled cylinder liner (10), which replaces the intake or the exhaust valve. This permits the complete cylinder surface to be used for valves (9) of the same type, e.g. intake valves. The cylinder liner has a turned collar (15). A controlled oil flow applies a hydraulic pressure to the ring surface of the collar, for a displacement movement. The top edge of the piston bushing has a ground flat surface and a steep outer chamfer, so that the sealing surface to the head plate (11) has the character of a valve seat. ADVANTAGE  - Allows improved cylinder filling of engine.
Patent DE-4218583-A1 (DE)
Inventor: WUELKNITZ PETER DR
IPC: C09K3/30
Filed: 1992-06-05
Abstract: A composition to hold hair in place based on an alcohol or water-alcool solution contains film-building agents, solvents, propellants and usual cosmetic components. A uniform and satisfactory spraying of the total contents of the spraying can is ensured by using a mixture of a propellant which is insoluble or hardly soluble in the solution and of a propellant of which at least 40 % by volume are soluble in the solution at 20  DEG C and under 1 bar partial pressure. The mass ratio between these propellants lies between 3:1 and 1:10. The viscosity of the solution lies between 1.5 and 10mPas at 20  DEG C.
Patent DE-4219795-A1 (DE)
Title: Precise location for dental articulation hinge axis - obtains adjusting block by arbitrary rapid transfer arch via impression plate.
Inventor: SCHREIBER HANS DR DR
IPC: A61C11/08
Filed: 1992-06-17
Abstract: The adjusting block permits the coupling of the articulator to a top jaw model via the same impression plate. The condylar posts are each fitted with a marked plate element in the sagittal plane. On association to the lower jaw model, the same plate elements are aligned with those fixed at the articulator via a thin check bite. Then the real hinge axis is recognisable by using a thick check bit. This is followed by articulation via a laboratory transfer arch. USE/ADVANTAGE - For large dental prosthetic work, with simple hinge axis location, and time reduction.
Patent DE-4220157-A1 (DE)
Title: Paste and emulsion viscosity measurement w.r.t. shear-rate using capillaries - forcing sample through capillaries of differing cross=sectional area, and measuring pressure difference
Inventor: MILLAUER CHRISTIAN
IPC: G01N11/08
Filed: 1992-06-19
Abstract: Viscosity is mesaured by forcing a measurement medium through several capillaries of pressure different cross-sections, and measuring pressure difference along each capillary simultaneously. The transverse tension and/or gradient is derived from the pressure differences. The capillaries (17-19) are connected in parallel to a pressure generator (9), and have pressure measurement connections at separate points along their lengths. Capillaries of smaller cross-sectional area are shorter, than those of larger cross-sectional area. USE/ADVANTAGE - Also for plastic materials and liquids shearing stress can be measured for different shear rates whilst all other parameters held constant.
Patent DE-4221817-A1 (DE)
Title: Suction cleaner with pivot arrangement on floor of casing - has hose retained in opening of clamp which is recessed into disc so that roller is at least partially enclosed
Inventor: SYKORA VLADIMIR
IPC: A47L9/00
Filed: 1992-07-03
Abstract: A rotary disc (9) pivotable within a recess in the floor is associated with a roller (16), partially enclosed by the opening (7) in the clamp (6) between two arms (14). The connecting part (13) of the clamp is curved outwards to form a surface along which the roller can move. The disc is pivoted about a bearing pin set into the floor so that the roller is turned in the direction of travel of the cleaner. ADVANTAGE - No special recess for clamp is required in floor of casing, and roller can be simple guidance wheel.
Patent DE-4222614-A1 (DE)
Title: Tyre tread for use on soft sand or snow - has series of grooves sepd. by ridges which have hemi-spherical recesses with total area within specific ratios to total contact area
Inventor: TAKEUCHI KOHJI
IPC: B60C11/03
Filed: 1992-07-09
Abstract: A tyre has a tread profile with a number of ridges sepd. by a number of grooves. The outermost face of the ridges has a number of recesses; the ratio of the total open area of the recesses to the contact area of the profile is between 10 and 30%. The contact area is the area in contact with a hard road surface when inflated to IATMA standard. The figure shows the plan view of part of the tread for use in e.g. a desert. Its profile has three main circumferential grooves (2) and a large number of ancillary grooves (3) running diagonally across the width. The main groove (2) along the centre line is straight but the other main grooves (2) are zigzag. Each intermediate ridge (5) has many recesses (6); each is circular in plan and hemispherical in relief. Those (6) in the shoulder areas are e.g. larger than those at the centre line area. They do not need to be circular. They can additionally be in the base of the various grooves. Their effect is to compress the e.g. sand entering them and so form rigid relief patterns which provide a good grip for the tyre. ADVANTAGE - The design has a high tractive grip both on soft sand and soft snow.
Patent DE-4222662-A1 (DE)
Title: Yarn splicing device - has additional action by saw-tooth blades to untwist the yarn ends
Inventor: MAURIES REINHARD
IPC: B65H69/06
Filed: 1992-07-10
Abstract: A pneumatic yarn splicing device has yarn end prepn. action. There are jets to untwist the yarn, and having saw tooth edges to assist in sepg. the fibres. The splicer (1) is fitted to a winder by the body (2), and there is other equipment on the machine to operate the insertion of broken ends, and the removal when repaired. The splicer head (3) has a channel (4) for the yarns. This is closed by the cover (5). The airjets (6,7,8,9) are for this part of the operation. The side tubes (10,11) and channels (12,13) take the ends of yarn (16,17), which also lie in the splicing channel (4). ADVANTAGE - Fewer fibres are lost from the untwisted ends, which are regular and held firmly, in prepn. for splicing. The design is suitable for hard twisted yarns and cords.
Patent DE-4224525-A1 (DE)
Title: Pump for high-pressure delivery of concrete - incorporates cover in hopper return used to improve suction
Inventor: TAKEZAKI TOSHIO
IPC: F04B15/02
Filed: 1992-07-24
Abstract: The pump delivers concrete. The opening region (8) of the filler feeding hopper (6) on the upper side of the swivel housing (3) has a cover region (3') with a predetermined length (L), measured from the side of the concrete cylinders (2,2'), to cover one part of the opening (8). The form of a cross-section of the wall region set vertically to the middle axis of the cylinders, which extends from the opposite sides of the cover region (3') to the opposite sides of the housing (3), is shaped as a curve. USE/ADVANTAGE - Concrete pump having improved suction capability and suitable for continuous delivery at high pressure.
Patent DE-4224783-A1 (DE)
Inventor: TAKADA TSUKIO
IPC: B03B5/44
Filed: 1992-07-27
Abstract: A sorting apparatus for sorting parts or materials according to their specific gravities has a liquid tank 1 the interior of which is divided into two sections by a partition plate 4, liftable gauze wire cages 6 placed in the respective tank sections, a heavy sorting liquid such as tetrabromethane 2 having a specific gravity of about 2.95 and filling the liquid tank up to a level above the top ends of the partition plate and the cages, a washing liquid 3 such as water forming a layer on the surface of tetrabromethane, and a pusher plate 11 movable along the surface of tetrabromethane from one to the other tank section. The apparatus may be used to separate ground metal parts 9 from the grinding ceramics 10 in barrel grinding. <IMAGE>
Patent DE-4225176-A1 (DE)
Title: Thermostatic mixer valve for showers and wash-basins - has axially protruding secondary control edge and associated sleeve face in control gap area to avoid undesired vibrations
Inventor: KAHLE DIETER
IPC: F16K11/00
Filed: 1992-07-30
Abstract: At least in the control gap (2) area for the cold medium there is an axially protruding sec. control edge (4) on one side and a sleeve face (122) on the other so that when the control gap is closed the sec. control edge is at least near by the sleeve face. The active sleeve face of the valve body (12) or of the sec. control edge can be conical with a cone angle of pref. 60 deg. The sec. control edge can be moulded as a cylindrical ring onto the head piece (11). It can be set in the control gap for the cold water and/or in the control gap for the hot water. USE/ADVANTAGE - Undesired vibrations are avoided in extreme operating conditions of the mixer valve.
Patent DE-4230504-A1 (DE)
Inventor: SCHNEIDER GUENTHER DR
IPC: C09K23/56
Filed: 1992-09-15
Abstract: Water-in-oil emulsions containing a water-soluble alkyl glycoside or a mixture of several water-soluble alkyl glycosides.
Patent DE-4231908-A1 (DE)
Title: Control system for grinding wheel with compensation for tool wear - computes distortion of workpiece during grinding to determine accurate end position
Inventor: MURAI YASUHIKO
IPC: B23Q15/18
Filed: 1992-09-18
Abstract: The position of the grinding wheel (1) w.r.t. the workpiece (2) is monitored by a sensor (16) connected to the controller. The pressure of the grinding wheel on the workpiece is also monitored as well as the movement of the wheel. The control system computes a distortion faction for the workpiece, under the grinding force, to correct the position control and achieve an accurate end surface. The grinding wheel is brought into contact with the workpiece in a controlled manner, reduction is wheel diameter is compensated for. If similar materials are used for successive workpieces then the initial distortion of the next workpiece can be estimated before the processing. ADVANTAGE - Improved process control, self adjusting control.
Patent DE-4233561-A1 (DE)
Title: Cable fabrication appts. supplying casings to workpiece carrier - has pivotable device for extraction of empty pallets to be lowered into buffer store from vertical stack.
Inventor: WENDT JOACHIM
IPC: H01R43/20
Filed: 1992-09-30
Abstract: The fabrication appts. has a casing module (GM) contains a number of parallel guide channels (ZK) along which the casings (GH) are brought from pallets (AH) arranged in a vertical stack (VS). The empty pallets are removed by a pivotable extractor (AS). Each empty pallet is lowered from the plane of the channels and tipped into a buffer store (PS) while the next pallet is moved into position for extn. The channels are grouped symmetrically about the longitudinal axis of the appts. ADVANTAGE - Deg. of automation can be increased with handling of casings as independent as possible of different prodn. procedures.
Patent DE-4242790-A1 (DE)
Title: Vehicle suspension with variable damping characteristics w.r.t. vehicle conditions - has motion sensors on suspension mountings and with stepping motor to vary damping characteristics
Inventor: SASAKI MITSUO
IPC: B60G17/015
Filed: 1992-12-17
Abstract: Each suspension unit is fitted with a damper with variable damping characteristics controlled by an actuator either in steps or continuously. Each damper has a motion sensor to determine the acceleration of the damper in either direction, with the sensor mounted to monitor the sprung mass movement. The rate at which the characteristics are altered w.r.t. vehicle dynamics, with a slow rate of change for low accelerations. The CPU controlling system has inputs from all the sensors including vehicle speed and steering settings. To counter roll and pitch certain dampers are controlled with asymmetric damping characteristics. The CPU provides the drive signals for the actuators. ADVANTAGE - Separate control for each damper, improved comfort and stability.
Patent DE-4243036-A1 (DE)
Title: High efficiency burner for fuel fired waste incinerator, heater or diesel combustion engine
Inventor: BONN MARTIN
IPC: F23D11/44
Filed: 1992-12-18
Abstract: The burner has the fuel feed (2) ducted into the heated section (4) of the injector, with the heating from an external power source. The end of the injector is set into the combustion chamber and the ends of the heating elements are heated to the ignition temperature. The firing of the fuel is assisted by spark plugs or glow plugs (22) and a controlled inflow of air ensures an efficient burn.The gasified fuel leaves the injector via flow restrictions (8) at the burn end. The shaped flow restriction inject the fuel gasses into the combustion chamber with a swirl effect. The heating elements comprise an outer cylindrical heater (7) and an inner rod heater (6).
Patent DE-4304881-A1 (DE)
Title: Adjustment and centring device of a power brake
Inventor: RUPPRECHT BERND
IPC: F16D65/56
Filed: 1993-02-17
Abstract: An adjustment and centring device on the push-through lock of an internally acting power brake is described, in which adjustment and centring device the surface of the guide block (2) in which the push-through lock is mounted is formed on the side facing the inside of the brake as an essentially partially cylindrical outer surface (11) which corresponds approximately to the outer circumference of the adjustment gear wheels (6) of the adjustment and centring device, and in which the adjustment plate (13) is mounted on the side facing the frictional lining of the brake drum in a plane perpendicular to the brake carrier plate (1). As a result, the space which is available for rotating parts inside the brake, such as for example the parts of an anti-lock system, is substantially increased. <IMAGE>
Patent DE-4308868-A1 (DE)
Title: Transporting crate
Inventor: KORTE KLAUS
IPC: B65D21/08
Filed: 1993-03-19
Abstract: The invention relates to a plastic transporting crate, consisting of a base and four side walls which are connected at their upper edge by a frame, the two longitudinal side walls arranged opposite each other being foldable in their centre parallel to the bottom, being attached by their lower edge to the base by means of hinges and by their upper edge to the frame by means of hinges. The object of the invention is to provide a crate which can be produced primarily of plastic and allows orderly lateral removal of the object when the transporting crate is in a stack. The invention consists in that the base is constructed as a trough which takes up about one third to half the height of the upright crate, and in that at least one end side wall consists of at least one slide which can be displaced out of the trough perpendicular to the plane of the base between or in front of the longitudinal side walls and can be fixed thereon or on the frame or the base in its pulled-up position.
Patent DE-4312336-A1 (DE)
Title: Control unit for amount of suction air of vehicle IC engine - has sensor for determining degree of opening of accelerator pedal and sensor for determining degree of opening of throttle valve
Inventor: WATAYA SEIJI
IPC: F02B1/04
Filed: 1993-04-15
Abstract: The throttle valve adjusting element controls the opening degree of the throttle valve (2) according to the output signals of the acceleration pedal opening degree sensor (6) and the throttle valve opening degree sensor (4). A first completely closed determination switch (9) determines the completely closed condition of the acceleration pedal (5). An anomaly determination unit is provided for establishing, that the control unit for the amount of suction air functions abnormally, in the event that the acceleration pedal is in a fully closed condition, with the throttle valve not in the fully closed condition. ADVANTAGE - With abnormal opening operation of throttle valve occurring, prevents uncontrolled hunting if anomaly occurs.
Patent DE-4313314-A1 (DE)
Title: Method of water management for the process water in a plant for producing sand-lime bricks
IPC: C02F1/20
Filed: 1993-04-23
Abstract: Method of water management for the process water in a plant for producing sand-lime bricks (lime-sand bricks), wherein the condensate formed in the plant is worked up, wherein the condensate formed in brick curing (H2O + Ca(OH2)) and the lime-containing fresh water (H2O + Ca(HCO3)2) are fed to a precipitation step in which CaCO3 is precipitated, and the water formed in the precipitation is fed to the steam generator and the CaCO3 is added to the base mixture for brick production.