baber/WOPTO huggingface dataset:
Patent DE-3308294-A1 (DE)
Title: Vacuum cleaner nozzle with sliding base and rotating brush cylinder
Inventor: SIEFERT WOLFGANG
IPC: A47L9/04
Filed: 1983-03-09
Abstract: In a vacuum cleaner nozzle (1) with a sliding base (3) and a rotating brush cylinder (5) which is driven by a turbine wheel (7), a secondary air valve (11) is provided in a secondary air path (12) which opens out into the suction circuit (S) behind the turbine wheel (7). In suction operation with the sliding base (3) resting on the carpet or the like, the secondary air valve (11) is kept closed. When the sliding base (3) is raised, the secondary air valve (11) is opened automatically and conducts outside air into the suction circuit (S) such that the rotational speed of the turbo brush during idling hardly increases and there is no annoying increase in noise of the nozzle. <IMAGE>
Patent DE-3311953-A1 (DE)
Title: Process for making a reactor cylinder for a radiant heater, and reactor cylinder
Inventor: CRAIG LAURENCE B
IPC: C04B30/02
Filed: 1983-03-31
Abstract: The invention relates to a process for making a reactor cylinder for use in a radiant heater and to a reactor cylinder made by the process. A liquid transport agent is first prepared, which comprises an alumina dispersion, magnesium sulphate, colloidal silica and powdered talc. An antifoam can be added. The alumina dispersion comprises dispersible alumina in a quantity of between about 1 and about 5% by weight, an acid in a quantity of up to about 0.2% by weight and water between about 10 to about 30% by weight, all percentages by weight being based on the weight of the liquid transport agent. The alumina dispersion is then diluted by further addition of water to between about 40 and about 80% by weight. Up to about 4% by weight of magnesium sulphate, colloidal silica in a quantity of up to about 10% by weight and powdered talc in a quantity of between about 0.0001 and about 0.1% by weight are added to the diluted alumina dispersion. A composition of solid alumina fibres and silica fibres is then added to the transport agent in a ratio of about 2.64 g of solid fibre per litre of transport agent (10 g of fibre/ gallon of transport agent). The mixture or suspension is then comminuted, mixed and formed in vacuo on a mandrel to form the reactor cylinder.
Patent DE-3314541-A1 (DE)
Title: Central belt buckle
Inventor: UNTERBERG HANS-WERNER DR ING
IPC: A44B11/25
Filed: 1983-04-21
Abstract: A central belt buckle serves for closing belt ends together in a star-shaped manner. The central belt buckle has a holding plate (1) and a rotary handle (5) mounted in the holding plate. Distributed on the circumference of the central belt buckle are slots for the insertion of insert tabs (4), each connected to one end of the belt. Provided in the holding plate (1) are holding devices which are released by means of the rotary handle (5). The holding devices are designed as locking bolts (15) which are held in the locking position under the pressure of a spring (35). In the locking position, the locking bolts (15) engage into a lug (41) of one of the insert tabs (4) respectively. The rotary handle (5) has guide tracks (53) in the form of helical surfaces on its side confronting the locking bolts (15). Rolling bodies (54) bear on the guide tracks (53) and, on the other hand, bear against an axially displaceable thrust plate (55), on which the locking bolts (15) are supported. The rolling bodies (54) are guided in a stationary intermediate plate (6). <IMAGE>
Patent DE-3314885-A1 (DE)
Title: Magnetic roller for a copier
Inventor: BAERMANN HORST
IPC: G03G15/09
Filed: 1983-04-25
Abstract: In a magnetic roller 1 for copiers, there are arranged on a support member 2, which is shaped like a ring or roller and made from magnetically non-conductive material, strip-shaped permanent magnet pairs 3 which have a segment-shaped cross-section. Each permanent magnet is magnetised in the direction of its smallest thickness in such a way that like poles (N, N, S, S) are alternately juxtaposed on the adjacent faces 3a of the permanent magnet pairs and form on their circumferential faces 9 main poles which change their polarity from magnet pair to magnet pair in the circumferential direction. The direction of magnetisation is marked by the arrows 7. The main poles are likewise marked on the roller circumference by the letters N and S. The permanent magnet pairs can be mounted on the support member by means of ribs 4 which extend in the radial direction and have anchoring parts 5 on their ends. <IMAGE>
Patent DE-3316226-A1 (DE)
Title: Method and device for removing ink from in front of the nozzle openings and air from the nozzle space of an ink jet printing head
Inventor: KLUGE OLAF DIPL ING
IPC: B41J2/19
Filed: 1983-05-04
Abstract: The invention relates to a method and a device for removing ink from in front of the nozzle openings and air from the nozzle space of an ink jet printing head. The object of the invention is to prevent, by simple means, the nozzle openings of an ink jet printing head from becoming contaminated and to prevent air bubbles collecting, in order to obtain a satisfactory print image, whilst it was also the object to fulfil these demands by utilising an ink circulation system, known per se. According to the invention, the object is achieved in that ink is fed through a line branch of the ink circulation system in the printing pauses, which branch contains an element which produces a partial vacuum, as a result of which ink which has collected in front of the nozzle openings can be drawn back into the ink jet printing head to such an extent that the nozzles become free of ink. In this process, the air which has collected in the ink jet printing head is also removed at the same time. The element which produces a partial vacuum is an injector pump. Below the nozzle openings, an additional suction opening is provided which opens into a separate chamber of the ink jet printing head. This chamber is connected to an injector pump by means of a line branch which contains a valve. <IMAGE>
Patent DE-3322556-A1 (DE)
Title: Lance for blowing fluidised materials into molten metal
Inventor: BESAND KARL
IPC: C21C5/46
Filed: 1983-06-23
Abstract: The invention relates to a lance for blowing fluidised materials, consisting of a metal pipe 6 having a refractory sheath 7 surrounding the pipe. The lance 1 has a ceramic, replaceable nozzle 2, and the refractory sheath 7 can be built up in the axial direction from a plurality of layers of materials having different wear rates. <IMAGE>
Patent DE-3323343-A1 (DE)
Inventor: STAHLHOFEN PAUL DIPL CHEM DR
IPC: C08L65/00
Filed: 1983-06-29
Abstract: A light-sensitive mixture is disclosed which contains a binder comprising a polycondensation product of a phenol corresponding to the formula   <IMAGE>   wherein R1 is a hydrogen atom, an alkyl group or a hydroxy group, R2 is a hydrogen atom, an alkyl group, a hydroxy group or an acetyl group, and R3 is a hydrogen atom or a halogen atom, an alkyl group, an alkoxy group, a carboxyl group or a carboxylic acid ester group, and a compound corresponding to the formula ROCH2-X-CH2OR, wherein R is a hydrogen atom, a methyl group, an ethyl group or an acetyl group and X is a phenylene group or a binuclear aromatic group. The mixture yields printing plates which have a high resistance to developing solutions and which show a low degree of soiling upon baking.
Patent DE-3328277-A1 (DE)
Title: Automatic choke with electronic idling speed control for a spark ignition engine carburettor with main throttle and choke valve
Inventor: HEUMUELLER PETER DIPL PHYS
IPC: F02M1/10
Filed: 1983-08-05
Abstract: In order to achieve problem-free starting in a spark ignition engine at all temperatures, the choke valve in the carburettor is adjusted by a heated bimetal spiral when starting. The differing thermal capacities of engine and bimetal spiral have hitherto resulted in a high fuel consumption, especially in stop and go driving. By using an electronics system, which monitors the idling speed, an eccentric disc, which acts on the lever of the main throttle, a servo motor and a limit sensor, the idling speed is controlled by turning the choke valve and main throttle. In so doing the rotary position of the choke valve predetermined by the bimetal spring is influenced only in an opening direction, not in a closing direction. A driving lever, which is rigidly connected to the choke valve shaft, and the limit sensor, which is fixed on the eccentric disc and is actuated by the driving lever, mean that in the starting process precisely that choke valve position is set which the engine manufacturer has determined as the optimum value for the engine type.
Patent DE-3328865-A1 (DE)
Title: Analog/digital converter
Inventor: SCHNEIDER RUDI
IPC: H03M1/00
Filed: 1983-08-10
Abstract: Analog/digital converter which includes a voltage/frequency converter (1) in which, to measure the duration of a period of the measurement pulse sequency, gates (7, 8) in front of a clock pulse counter (11) and a measurement pulse counter (10) are controlled, within a predeterminable integration time with optimum synchronisation of the counting time of clock pulses with the beginning and end of the measurement pulse periods to be counted out, by a flip flop (4), the enable input (5) is connected to an integration time signal and the dynamic input (3) is connected to the output of the voltage/frequency converter (1), and a transfer control input of a buffer memory (12) for the content of the clock pulse counter (11) is connected to the output of the gate (7) connected in front of the measurement pulse counter (10) and bit outputs of the measurement pulse counter (10) and of the buffer memory (12) are connected to a dividing arithmetic unit (13). The invention is applied in fast digital voltmeters. <IMAGE>
Patent DE-3333673-A1 (DE)
Title: Process for producing bituminous coated material, including the use of scrap asphalt
IPC: E01C19/10
Filed: 1983-09-17
Abstract: The process according to the invention makes it possible to re-use more than 40% by weight of scrap asphalt in the preparation of bituminous coated material, without having to do without the countercurrent heating of the mix components. The fresh mineral materials are heated alone in a drying drum (4), the burner output being controlled via the outlet temperature of the mineral materials. The flue gases are passed, at least partially after heating-up by means of an additional burner (11), into a further drying drum (9) for heating the scrap asphalt to about 110 DEG C. The output of the additional burner is controlled via the outlet temperature of the scrap asphalt. By means of a by-pass control device, the waste gas temperature of the second drying drum (9) can be limited to about 100 DEG C, so that difficulties in filtration due to gluing together of bitumen particles cannot arise. The hot mineral materials are screened and conveyed via intermediate bunkers (15) and a weigher into the forced mixer and mixed therein batchwise with added hot scrap asphalt and bitumen. <IMAGE>
Patent DE-3342436-A1 (DE)
Title: Rubble chute consisting of tubular chute lengths
Inventor: BOECKER ALBERT
IPC: E21F13/04
Filed: 1983-11-24
Abstract: The invention relates to a rubble chute, consisting of tubular chute lengths, for the transport of building rubble and is based on the allocation of a breaking and braking device for the rubble to be transported. A frame which is attached to the chute tower as a breaking and braking device, swinging out braking levers being mounted on this frame, which levers can be swung into the inside of the length of chute via slots in the wall, using an adjustment rod. When large pieces of rubble are encountered, the braking levers can flexibly yield against the force of a spring. The braking levers are adjustable by means of an adjustment rod from an operating position into a position in which they no longer exercise a braking function. <IMAGE>
Patent DE-3342950-A1 (DE)
Title: Process for producing green clay bricks or tiles
Inventor: DENNERT HEINZ
IPC: B28B3/20
Filed: 1983-11-26
Abstract: A process for producing green clay bricks or tiles for the building industry, namely wall bricks, roof tiles, tile pipes and the like, in which the compounded clay is extruded through a die, oscillation energy being applied to it before it passes through the die ring, achieves the purpose of reducing the extrusion pressure by simple means with the use of very filigreed die rings, it being intended for the extruded strand of clay to be as dimensionally stable as possible, by being characterised in that the frequency of the applied oscillation energy is between 10 Hz and 300 Hz, preferably 50 Hz, and the oscillation is introduced approximately in the centre of the strand of clay. <IMAGE>
Patent DE-3344879-A1 (DE)
Title: Level-limiting value transmitter for liquid containers or the like
Inventor: SABROWSKY LOTHAR
IPC: G01F23/24
Filed: 1983-12-12
Abstract: The invention relates to a level-limiting value transmitter for liquid containers or the like having a sensor tube (3), which is arranged at the end of a probe tube (1) and has a temperature-dependent sensor (4). A specific electrical heating power is fed to this sensor (4), as a result of which an equilibrium temperature and a corresponding resistance value are set up, depending on whether the sensor tube (3) dips into the liquid or not. In order to increase the reliability and the long-term stability of such a limiting value transmitter, the invention provides that use is made as the sensor (4) of a silicon temperature sensor element which is embedded and hermetically sealed in the sensor tube (3). <IMAGE>
Patent DE-3346074-A1 (DE)
Title: Hydraulically operated underwater ejection device
IPC: F41F3/10
Filed: 1983-12-21
Abstract: Underwater ejection device for projectiles with the use of pressurised water, in which a driven annular piston surrounding the projectile is arranged within the ejection tube, the projectile being guided solely by a plurality of guide rails, and the annular piston being provided with recesses for the guide rails and its inside diameter being the outside diameter of the projectile.
Patent DE-3347616-A1 (DE)
Inventor: BISSINGER FRIDOLIN
IPC: B29K25/00
Filed: 1983-12-30
Abstract: 1. Process for producing consumable casting models comprising expanded foam-material beads, for full mould casting, preferably for making mass-produced castings, in which a finebeaded unfoamed propellant-containing initial product, in particular polystyrene, is prefoamed, and in which the prefoamed foam-material beads are introduced into a foaming mould preferably corresponding to the contour of the casting to be produced and are there warmed by introducing a heat transfer medium, in particular steam, and postfoamed, characterized in that in each mould foaming procedure an underpressure is produced when the heat transfer medium is introduced at a draw-off side of the mould cavity of the foaming mould which is opposite the introduction side and the heat transfer medium is drawn off thereby, the introduction side and draw-off side are changed repeatedly and after the change drawing off is continued until substantially clean fresh heat transfer medium comes to the draw-off side.
Patent DE-3400647-A1 (DE)
Title: Safety member and saw chain of a power chain saw
Inventor: NITSCHMANN KARL
IPC: B27B33/14
Filed: 1984-01-11
Abstract: A safety member for a saw chain of a power chain saw has a plate-like basic body with a safety extension, projecting to the rear beyond the basic body in the direction of rotation of the saw chain, for bearing on the root of a kerf cut with the saw chain. To reliably support it over a large area on the cut root, the safety member has a widened portion which projects beyond at least one side face of the basic body. The widened portion is formed either by a longitudinal margin of the basic body, which longitudinal margin is widened by bending or flattening, or by a safety extension having side set or by an end section of the body of the safety member, which end section has side set and is opposite the safety extension. The safety member is connected in an articulated manner via bolts to lateral cutting members, centre driving members and lateral connecting members and lies in front of the associated cutting member in the direction of rotation of the saw chain. The risk of a return kick from the associated power chain saw can be considerably reduced and very smooth running and neat cuts ensured with the safety member and the cutting member.
Patent DE-3403145-A1 (DE)
Title: Apparatus for testing rod-shaped articles lying in compartments of a conveyor, in the tobacco processing industry
Inventor: SIEMS WOLFGANG DIPL PHYS DR RE
IPC: G01N15/08
Filed: 1984-01-31
Abstract: The invention relates to a testing apparatus for rod-shaped tobacco articles, having a resilient sealing member (27) which encompasses the articles, especially cigarettes (3), in an annular manner at their ends for the purpose of introducing an axially oriented flow of test air and, even at relatively high testing speeds, ensures that the cigarettes passing through the test zone are provided with a reliable and simply constructed seal which treats the cigarettes gently, in that it is provided with an inward-projecting weakened annular section (37) of wall which, in the event of axial stressing and compression of the sealing body by the end surface of the conveyor (1) carrying the cigarettes, deforms radially inwards, enters into annular contact with the exterior surface of the cigarettes, and thus encloses the latter in a sealing manner. <IMAGE>
Patent DE-3403632-A1 (DE)
Title: Reconditioned timber product and method of producing it
Inventor: INOUE YASUKIYO
IPC: B27G1/00
Filed: 1984-02-02
Abstract: The invention relates to a reconditioned timber product (1). The reconditioned timber product (1) is produced by a method having the following steps: removal of knots (3) by making conical bores (5) which have a suitable depth at the knots (3) exposed at the surface (S) of the timber product (1), and pressing wooden plugs (6) into the bores (5), the wooden plugs (6) having the shape of conical spindles and being produced from raw timber similar to the knot-free timber product (1). <IMAGE>
Patent DE-3405315-A1 (DE)
Title: Controllable vibration damper for vehicles
Inventor: KUEHNEL JOACHIM DIPL ING
IPC: B60G17/08
Filed: 1984-02-15
Abstract: By means of the present application the construction of a controllable vibration damper with electromotive adjustment arranged in the internal chamber of the vibration damper is essentially simplified in that the power supply of the electric motor is formed by vibration damper subassemblies electrically insulated from one another and movable in relation to one another.
Patent DE-3406276-A1 (DE)
Title: Afocal lens with spherical-concave-convex faces
Inventor: GERNET HERMANN
IPC: G02B13/06
Filed: 1984-02-22
Abstract: The afocal lens, which has the shape of a glass stopper, is made of uniformly refractive, transparent optical material. The lens has spherical surfaces on both faces, one face being convex and the other concave, and the two surfaces have a common centre of curvature.- A lens, used e.g. in telescopic spectacles, has a wide field of vision and a physical magnification of at least 1.06 to 1.30. An afocal lens for a telescope can be made in the form of a transparent dome surrounding the user's head without restricting the field of vision, with a magnification of 1.15 to 1.40
Patent DE-3407935-A1 (DE)
Title: Process for the dyeing of a fibre blend
Inventor: MOREAU JACQUES DR
IPC: D06P3/87
Filed: 1984-03-03
Abstract: A process for the single-bath, two-stage dyeing of a fibre blend, consisting of a textile material which can be dyed with a basic dye and a textile material containing hydroxyl groups, characterised in that in a first stage the textile material which can be dyed with a basic dye is dyed, then the dyeing bath is cooled, and in a second stage and in the same dyeing bath the textile material containing hydroxyl groups is dyed with a substantive or a direct dye, in which process those basic dyes are to be employed which do not migrate under the dyeing conditions during the first and second stage.
Patent DE-3411409-A1 (DE)
Title: Rotating window wiper with washer system for telescope domes
Inventor: GERNET HERMANN
IPC: G02B3/00
Filed: 1984-03-28
Abstract: A rotating window wiper, which is matched to the shape of telescope domes, with a washer system and automatic hand/foot operation is described.
Patent DE-3413390-A1 (DE)
Title: Smoke pipe and method for producing it
Inventor: KIHM HERBERT DIPL ING
IPC: C04B41/87
Filed: 1984-04-10
Abstract: Smoke pipe made of fireclay, especially for multi-shell chimneys, which has on its inside surface (24) a surface sealing (30) made of a fire-resistant ceramic material, the mineral components of which essentially consist of illite and which is sprayed onto the inside surface (24) of the smoke pipe made of clay before it is baked and is then baked together with the pipe in such a way that the sealing material is only sintered onto the inside surface (24) of the pipe, but is not vitrified to form a sealed surface, so that when the smoke pipe is used in a cold chimney, the liquid formed can flow off downwards and moisture which has penetrated through the surface of the body of the smoke pipe (13) can re-emerge into the inside of the flue (13). <IMAGE>
Patent DE-3417920-A1 (DE)
Title: Device for positioning parts
Inventor: KIRCHHOFF ROLF DIPL ING
IPC: B41J7/34
Filed: 1984-05-15
Abstract: For positioning motor-driven parts, e.g. push buttons, a disc provided with transparent slots is coupled to the shaft of the drive motor. The rotational speed and the angular position are recorded by a light barrier-type sensor with the aid of said slots. To record the direction of rotation, a stationary screen is provided, in which the slots are offset relative to one another by a quarter of their interval, such that electric signals with a phase position displaced through 90 DEG  result on the sensors. The screen is fixed in such a way that it can be adjusted after assembly. <IMAGE>
Patent DE-3422712-A1 (DE)
Title: Winding drum for elongated material
Inventor: GERHARDSSON GUNNAR DAVID
IPC: B65H75/22
Filed: 1984-06-19
Abstract: A winding drum for elongated material, for example electric cable, which is designed to be collapsible so that it can be returned when empty, for example to a cable manufacturer, has a core which is provided with an expandable section on at least one of its ends. An end pin can be inserted in the region of this section, to press against the rim of an opening in the associated end piece of the core. The latter consists of sheet metal and the depth of axial insertion of the end pins is limited by a stop in each case. In the mounted condition, an outwardly pointing stop of the core rests against the inside of the end piece in question, so that the latter is fixed.