baber/WOPTO huggingface dataset:
Patent DE-3008459-A1 (DE)
Title: Sand-blaster for bore of metal tube - has feed pipe which traverses carriage to terminate in sleeve locating bearing for rotary head
Inventor: TSCHUDIN KARL
IPC: B24C3/32
Filed: 1980-03-05
Abstract: The sand-blaster treats the bore of a metal tube, using a carriage-mounted rotary head (2) with radial nozzles (22). The abrasive feed pipe (10) traverses the fixed carriage substructure (1), projecting into the head and terminating at the distribution chamber (24). A fixed sleeve (14) houses the pipe (10) extremity which penetrates the head, locating at least one journal bearing (23) upon which the head is mounted. The substructure may comprise a metal pipe casing (11) which locks into a hexagonal section metal tube (30), locating rollers (32) on adjustable tangential cantilever arms (31). The head casting may take the form of a truncated pyramid with a chamber (24) and inlet (0) and a head cup (28), and has two nozzle (22) apertures (27) on each side (20).
Patent DE-3011070-A1 (DE)
Title: Automatic plant watering system - can be adjusted to produce watering volume suited to requirement using pipe buried in soil
Inventor: LAUGESEN GUNNAR NYBRO
IPC: A01G9/24
Filed: 1980-03-19
Abstract: The system is for automatically watering plants in greenhouses. It has a water supply tank, whose water inlet mechanisms supply for a contant water level and whose outlet is connected, via an emptyable tank at a level below that of the supply tank, to a watering system. Consequently, water can be fed in low volumes to the soil ro to the plants and the system can be adjusted to produced the watering volume suited to the requirements. The water supply tank or its level control mechanism can be adjusted in height with respect to the effective outlet level of the connecting mechanism to adjust the watering volume.
Patent DE-3012290-A1 (DE)
Inventor: HIRS JOSEPH
IPC: A01M29/02
Filed: 1980-03-29
Abstract: 1. Device for driving away birds and small rodents by applying at least one first sound vibration in the ultrasonic range or in the near-ultrasonic range to at least one spatial area, the first sound vibration being modulated with at least one second sound vibration which is of low frequency compared with the first sound vibration, which device comprises a resonator for radiating the sound vibration in the ultrasonic range or in the near-ultrasonic range, characterized in that the resonator (1) is supported to be rotatable about two axes (X-X, Y-Y) arranged at an angle to each other and is rotationally driven and arranged at least approximately in the area of the intersection of the two axes of rotation.
Patent DE-3013432-A1 (DE)
Title: Seal ring assembly for static application - has enclosed ring chamber accommodated between two axially profiled rings
Inventor: HANAFI NABIL DIPL ING
IPC: F16J15/18
Filed: 1980-04-05
Abstract: The static seal assembly includes two seal rings (8,9) which are located in the same groove (9') axially side by side. One seal ring (9) is provided with an axial 'V'-groove (10). The second seal ring (8) has axially tapered flanks (11) which are located in the 'V'-groove of the other ring (9). When assembled, an annular groove (12) enclosed by the two rings is formed.
Patent DE-3015059-A1 (DE)
Title: Drive regulator for grinding tool - has infinitely variable control of speed and determines displacements from axes to derive actual value
Inventor: BEURER WOLFGANG
IPC: B24B47/18
Filed: 1980-04-18
Abstract: A drive regulator circuit for grinding discs of a grinder has a control that is independent of the dia. of the workpiece being machined. The grinding disc (4) and the drive motor are mounted on a support which can be set either in the horizontal or vertical position. The standard control network provides infinitely variable speed control. The actual value of the speed is derived from the distance between the axis of the workpiece being machined and the axis (9) of the drive shaft of the grinding disc (4).
Patent DE-3016010-A1 (DE)
Inventor: SCHWARZ RUDOLF DR
IPC: C01B33/18
Filed: 1980-04-25
Abstract: 1. Process for the pyrogenic production of silica, characterized in that a mixture of silicon tetrachloride and/or methyl trichlorsilane and hexamethyldisiloxane is used as the raw material.
Patent DE-3030448-A1 (DE)
Title: Temp. independent oxygen content determn. esp. for combustion gases - by using quotient of readings for known and unknown gas compositions
Inventor: ROHR FRANZ JOSEF DR
IPC: G01N27/417
Filed: 1980-08-12
Abstract: The oxygen content of a gas, esp. a combustion flue gas, is determined independent of temp. fluctuations using an electrochemical measuring cell operating at the temp. of the hot gas and emitting an electrical signal which is approx. linearly dependent upon the oxygen content of the gas. A first signal is temporarily derived from the gas, and a second signal temporarily derived from a reference gas having a constant oxygen content. One of these signals is stored, then the quotient of their two values is formed as a measure of the oxygen content of the gas. Pref. the first and second signals are derived at a closely spaced interval. Used for determining the oxygen content of a flue gas using a hot measuring cell, i.e. a cell at the gas temp. The forming of a quotient eliminates the temp. influence, since temp. fluctuations act both upon the oxygen content of the measured gas and upon that of the reference gas in the same manner. The two readings should be taken relatively closely together to avoid temp. changes in the cell which should be limited to +/- 3deg.C.
Patent DE-3040704-A1 (DE)
Title: Gamma ferric oxide powder mfr., esp. for magnetic recording - where alpha ferric oxide is reduced in hydrogen-contg. steam so vol. of pores in powder is decreased
Inventor: RAU HANS PROF DR
IPC: C01G49/06
Filed: 1980-10-29
Abstract: The powder may be doped, and is made by converting alpha-FeOOH into alpha-Fe2O3 in the presence of a partial steam pressure and/or tempering the alpha-Fe2O3 obtd. at 200-500 deg.C in the presence of steam. The alpha-Fe2O3 is converted to Fe3O4 at 300-500 deg.C by redn. with H2, which may contain steam at above 1 bar but no liq. water; and/or the Fe3O4 obtd. is tempered at 200-500 deg.C in a mixt. of H2 and steam. The Fe3O4 is then oxidised to form gamma-Fe2O3. The alpha-FeOOH is pref. converted to alpha-Fe2O3 in a vessel contg. steam; and the redn. of alpha-Fe2O3 pref. occurs in H2 contg. steam. The Fe3O4 obtd. is pref. tempered in H2 contg. steam with a partial pressure above 1 bar. DE 2633597 describes a process for reducing the vol. of pores in the gamma-Fe2O3, but the process is complicated. The present invention provides a much simpler method of reducing the pore vol. so magnetic properties are improved.
Patent DE-3044670-A1 (DE)
Title: Railway points or crossover wheel guide fastener - has all round elastic spring as carrier, and two way safety stops
Inventor: HEIM ARMIN DIPL ING
IPC: E01B7/20
Filed: 1980-11-27
Abstract: The system is for fastening wheel guides in the frog area of points and crossovers. An element, resiliently elastic both transversely and lengthways, is located between the wheel guide and holder. The spring element is elastic in three dimensions and forms the carrier for the wheel guide. The wheel guide, not lying on top, is fitted with safety stops for all lengthways and transverse movements. The spring element can be made of elastomer, esp. rubber, vulcanised between a rigid sheath and a core.
Patent DE-3100373-A1 (DE)
Title: Method and circuit arrangement for setting the value of the excitation current of a synchronous machine which is connected to a main exciter device which contains a rotating diode unit
Inventor: MARTON LORAND DIPL ING
IPC: H02P9/38
Filed: 1981-01-09
Abstract: According to the method, the exciter voltage is measured on the sliprings (7) which are connected to the exciter winding and an analog signal is produced which is proportional to the exciter current of the main exciter device (2), after which an electrical signal is produced which is proportional to the exciter voltage and is combined with the analog signal before the current is set. The circuit arrangement is provided with first input points which are connected to the poles of the exciter winding by means of sliprings (7), and with second input points which are coupled to a shunt path (6) which is connected between the main exciter device (2) and an auxiliary exciter device (3), and the first and second input points are connected to an ammeter (9). The method and the circuit arrangement ensure that the exciter current of the synchronous machines (1), which are used in power technology, are set simply, at little cost. <IMAGE>
Patent DE-3100955-A1 (DE)
Title: Process for the preparation of a solid crystalline composition consisting essentially of calcium ascorbate
Inventor: SCHREUR CLARENCE
IPC: C07D307/62
Filed: 1981-01-14
Abstract: Process for the preparation of calcium ascorbate and in particular a process for the aqueous reaction of calcium carbonate with ascorbic acid and the preparation of crystalline calcium ascorbate. Depending on solvent extraction, crystal seed technique or combinations of these processes, previously known processes yield crystalline calcium ascorbate dihydrate in essentially pure form by use of an excess of ascorbic acid in the seed material; they are slow and complicated. The invention works with excess calcium carbonate which is added during the entire reaction, and at elevated temperature which is kept so low that the product does not decompose. The process of the invention is simpler than the known processes, calcium ascorbate oxidate having advantageous properties being formed as a by-product. The oxidate yield is controlled via the addition of calcium carbonate, a carbon dioxide saturation of the reaction participants being maintained and the reaction zone being protected with foam.
Patent DE-3103027-A1 (DE)
Inventor: GROLLA HERBERT ING GRAD
IPC: B22D33/04
Filed: 1981-01-30
Abstract: 1. A turnover apparatus, in particular for foundry flasks, having a frame which comprises support pins on two opposite end faces, receiving means for holding the foundry flask in the turnover apparatus and a rotating device, characterized in that the turnover apparatus (1) comprises bearings (10, 11) which are arranged in pairs in each case, are opposite one another, are rotatable synchronously about a central axis (27) and are open at the top for receiving the support pins (14, 15) of the foundry flask, each of these bearings (10, 11) is rotatable about an axis (12, 13) extending parallel to the central axis (27), at least one wheel (18, 19) is mounted non-displaceably and rotationally rigidly coaxially with the central axis (27) and at least on two of the axes (12, 13) of the bearings (10, 11) one further wheel (20, 21) is mounted rotationally rigidly in each case on the axes (12, 13), and the wheels (20, 21) of the axes (12, 13) are positively connected to the central non-displaceable and rotationally rigid wheel or wheels (18, 19) and are driven thereby.
Patent DE-3104525-A1 (DE)
Title: Roller applicator device with screw cap for a bottle or the like
Inventor: KOHN UDO
IPC: A45D34/04
Filed: 1981-02-09
Abstract: A roller applicator with a screw cap for a bottle for cosmetic media, in which the screw cap is constructed with projections so that a bearing piece with the associated roller in the screw cap can be transported in such a way that the bearing piece with the roller does not drop out when the opening of the screw cap is directed downwards.   <IMAGE>
Patent DE-3105504-A1 (DE)
Title: Device for draining concrete flat roofs
Inventor: PRIMUS ILLO-FRANK DIPL ING DR
IPC: E04D13/04
Filed: 1981-02-14
Abstract: In the case of concrete flat roofs with drawn-up border bead, there is concreted into the border bead, at at least one location, a round socket pipe, through which the rainwater collecting on the roof can be channelled into a downpipe fitted on the outer side of the building. Even slight angle deviations in the direction of the socket pipe result in large angle deviations of the downpipe from the vertical. In order to be able to compensate for such deviations, the invention provides a connecting piece (17) which is located between the socket pipe (14) and the downpipe (10), forms the transition between the two pipes, even with different cross-sectional profiles, and allows for the tolerances between the alignments of the two pipes. The connecting piece (17) is preferably of T-shaped design and is plugged into the upper end piece of the downpipe (10) provided with a milled relief (16). The T-shaped connecting piece (17) may also comprise two pipe pieces (28, 29) which are connected in an articulated manner by a sealing ring (30). <IMAGE>
Patent DE-3108280-A1 (DE)
Title: Device for protecting driver and/or front seat passenger, in particular of motor vehicles, against dazzling by the sun's rays
Inventor: HAARDT REINHOLD
IPC: B60J3/02
Filed: 1981-03-05
Abstract: The protection device according to the invention for protecting the driver or front seat passenger of motor vehicles from being dazzled by the sun's rays is characterised by a horizontally extending supporting and carrying rod with a sun visor which can be longitudinally displaced along the said rod and pivoted about the longitudinal axis of the rod and locked. The said sun visor permits the dazzling effect to be eliminated to an optimum degree without the field of vision of the driver being adversely affected. <IMAGE>
Patent DE-3110461-A1 (DE)
Title: Current-limiting fast-action switch
Inventor: TAYEFEH-EMAMVERDI MOHAMMAD DIP
IPC: H01H71/24
Filed: 1981-03-18
Abstract: A current-limiting fast-action switch has two contact arms (1, 2) which can move with respect to one another and are pressed against one another with the aid of a charged force store (20, 44) in order to produce a contact force, and has a device by means of which the contact arms (1, 2) can be operated above a predetermined limiting value of the switching-off current. In the case of this fast-action switch, the minimum contact movement which is required for extinguishing the switching-off arc is intended to be achieved in the shortest possible time. This is achieved in that at least one of the contact arms (1, 2) is held by a locking device whose bolt (29, 30) cancels this locking above a predetermined value of the switching-off current so that the electrodynamic force operates this contact arm (1, 2), but can also be achieved in that both contact arms (1, 2) are moving, are switched off without locking and have approximately the same dimensions. Such a switch is primarily suitable for use as a high-power circuit breaker for high rated-current intensities. <IMAGE>
Patent DE-3119479-A1 (DE)
Title: Formalin sterilisation device
Inventor: ECHLE BERNHARD DIPL ING
IPC: A61L2/20
Filed: 1981-05-15
Abstract: The formalin sterilisation device has at least one evaporator (3, 4) for evaporation of the liquid formalin or diluted formalin taken from a bottle (1) and of distilled water taken from a bottle (2) in order to expose a sterilisation chamber (5) alternately or simultaneously to formalin vapour and to water vapour. <IMAGE>
Patent DE-3128081-A1 (DE)
Title: Heating device
Inventor: AHNER PETER DIPL ING
IPC: F02G5/00
Filed: 1981-07-16
Abstract: The invention proposes a heating device for motor vehicles, which has a heating-medium circuit (water or air) by means of which it is possible to supply heat to, and discharge it from, the drive motor and to heat the passenger compartment. The invention provides at least one generator (6, 7) which is driven by the drive motor and has means for channelling away its lost heat, said means being part of the heating-medium circuit. As a result, it is possible to use the power dissipation of a motor-vehicle generator for heating, in particular after starting up a cold vehicle or at low speed. The invention further provides, in addition to the conventional generator (6), a so-called heating generator (7) which is arranged on the same shaft as the conventional generator (6) and is used to generate electric energy or heat energy for supplementary heating purposes. Finally, the heating-medium circuit can effect a greater discharge of the lost heat from the conventional generator (6), with the result that, with otherwise identical dimensions, said generator (6) can be used for higher outputs. <IMAGE>
Patent DE-3135015-A1 (DE)
Title: Heat accumulator of a heat rail
Inventor: CONRAD HEINRICH
IPC: F24D11/00
Filed: 1981-09-04
Abstract: The invention is based on room heating by heat rail from industrial heat which is available only five days a week. The heat accumulators, with high-grade insulation, are arranged distributed in a heat-rail network. The remaining two days of the week are thus bridged with a heat supply.
Patent DE-3139539-A1 (DE)
Title: Self-tipping waggons with side flaps for rail transport
Inventor: HARTMANN HEINZ LEOPOLD DIPL IN
IPC: B61D7/08
Filed: 1981-10-05
Abstract: Self-tipping waggons have the disadvantage predominantly when used in central and northern Europe that the side flaps freeze up while covering long transportation distances during the cold time of the year so that the self-tipping process is greatly impeded and delayed in the destination station by these frozen-up flaps. The proposed device avoids this by means of an electrical resistance heater arranged in the contact zone between the self-tipping waggon and the flaps and a power supply by means of axial generators or by means of current supply from the railway network through the electric locomotive. A thermostatically controlled switching device is advantageously provided for the power supply for maintaining a heating state above the freezing point. However, a power supply which is controlled by a timer can also be installed in order to re-establish a heating state above the freezing point.
Patent DE-3145668-A1 (DE)
Title: Method for the pneumatic conveying of solids
Inventor: TRILL ROLF DIPL ING
IPC: A62C3/04
Filed: 1981-11-17
Abstract: The invention relates to a method and an apparatus for the pneumatic conveying of solids. In order to exclude the risk of explosion throughout the conveying operation, in an economical manner, it is proposed that the conveyor flow serving to convey the solids should consist of a mixture of air and an inert gas.
Patent DE-3146822-A1 (DE)
Title: Stone saw with protective hood for the saw blade
Inventor: LOEFFLER KONRAD
IPC: B23D47/00
Filed: 1981-11-26
Abstract: Stone saw with a protective hood which is adjustable relative to the rotationally driven saw blade, stabilisers in the form of in each case two mutually opposite guide plates for the saw blade being provided in the region of the outlet opening of the protective hood.
Patent DE-3148045-A1 (DE)
Title: Snow clearing and universal small transport device
Inventor: SCHLOTT ERICH
IPC: B62B1/14
Filed: 1981-12-04
Abstract: Published without abstract.
Patent DE-3148553-A1 (DE)
Title: Dot matrix printer
Inventor: SEKIGUCHI BUNZO
IPC: B41J2/26
Filed: 1981-12-08
Abstract: A dot matrix printer of the impact type has dot printing elements (1) which have thin sheets or plates and are coated so as to be capable of sliding with respect to one another in the direction of their width. With the dot matrix printer, the simple addition of dot printing elements is made possible. In addition, the reduction in the size and the weight of the dot matrix printing unit and the improvement in the fatigue strength is made possible. Other special features of the invention relate to the arrangement of the electromagnets for the actuation of the dot printing elements (1), the coupling device for the engagement of the electromagnets in the dot printing elements (1) and a friction-reducing device for reducing the friction resistance between the dot printing elements (1). <IMAGE>
Patent DE-3201625-A1 (DE)
Title: Circuit arrangement for supplying voltage to telephone sets
Inventor: SCHOEN SIEGFRIED
IPC: H04M19/08
Filed: 1982-01-20
Abstract: Published without abstract.
Patent DE-3204778-A1 (DE)
Title: Sliding-head automatic machine with gear-cutting function
Inventor: TVERSKOJ DAVID NAUMOVIC
IPC: B23B11/00
Filed: 1982-02-11
Abstract: The subject of the invention is a sliding-head automatic machine with a gear-cutting function, on the frame (1) of which a headstock (2) is displaceably arranged and to the frame (1) of which a steady (3) and two slide-rest stands (6, 9) are fastened, of which one carries a cross-slide rest (7) with cutting tools (8) but the other (9) carries a cross-slide rest (10) with a hob, the spindle of which is kinematically connected to the headstock (2). The slide-rest stands (6, 9) are arranged in such a way that the cutting tools (8) and the hob are located near the front end of the steady (3). The kinematic chain which connects the headstock (2) to the spindle of the hob contains a shaft (22) which is parallel to the geometric axis of the headstock (2) and is connected to it via an indexing brace and a gear (29) which has a width (b) which slightly exceeds the maximum amount of the axial displacement of the headstock (2) and interacts with an indexing gear (20) attached to the headstock (2), while it interacts with the hob spindle via two pairs of gears (30, 31 and 33, 34) with axes at right angles to one another. Of these gear pairs, the one (33, 34) which is connected to the hob spindle is arranged to be displaceable in the direction at right angles to the geometric axis of the headstock (2) during the displacement of the cross-slide rest (9) carrying the hob. <IMAGE>
Patent DE-3208334-A1 (DE)
Inventor: NAIK ARUNDEV H
IPC: A01N25/02
Filed: 1982-03-09
Abstract: The invention relates to pesticidal (e.g. pyrethroid) pour-on formulations prepared on an aqueous basis; and also includes the method of combatting pests and parasites of warm-blooded animals, particularly acarines and insects by applying said pour-on formulations to the animals.
Patent DE-3209026-A1 (DE)
Inventor: KARDINAL HANS-JOACHIM ING GRAD
IPC: B65G51/32
Filed: 1982-03-10
Abstract: 1. A pneumatic tube terminal for sending and receiving pneumatic dispatch carriers, comprising a sleeve assigned to the upper boundary wall of a station housing (1) and serving for the connection of a pneumatic tube (5) ; a charging opening (6) in the same boundary wall for pneumatic dispatch carriers to be dispatched ; a discharge opening (7) for received pneumatic dispatch carriers on the opposite lower boundary wall ; a tube (4) which is open at both ends and can be inserted into alignment with the sleeve in order to receive a pneumatic dispatch carrier and which, in this position, is sealed by sealing means (16, 17), which are positioned outside the inner diameter of the tube (4), and the lower boundary wall, so as to form an air cushion which slows down the incoming pneumatic dispatch carrier, and which tube can be displaced into alignment with the discharge opening (7) in order to discharge the received pneumatic dispatch carrier ; and a tube chamber (3) which is aligned parallel to the tube (4) and can be displaced together with said tube and which is sealed at its lower end and provided with an air inlet opening (15) below its upper boundary region and which in order to accommodate a pneumatic dispatch carrier which is to be sent off, can be inserted into the alignment of the charging opening (6), and which, in order to transfer said pneumatic dispatch carrier into the pneumatic tube (5) by means of an air flow passed through the air inlet opening (15) can be displaced into alignment with the sleeve.