baber/WOPTO huggingface dataset:
Patent DE-2439739-A1 (DE)
Title: Corrosion-resistant tubular electric heaters - coated with non-rusting metal by application of heat and high pressure
Inventor: CZEPEK GUENTER
IPC: H05B3/48
Filed: 1974-08-19
Abstract: The corrosion resistance of tubular electric heaters is improved by applying galvanically, chemically or mechanically a coating of corrosion-proof metal and by joining it intimately to the rough tubular surface by a high mechanical pressure. During the application of the pressure, the part is heated in a protective gas atmosphere. This eliminates stress-induced cracks and pitting in 18/8 Cr Ni steel elements and saves the addn. of Mo. The coating is free from pores and much more resistant to local corrosion and mechanical damage than conventional nickel plating.
Patent DE-2441227-A1 (DE)
Title: Conductor wire coating cross-linked by heat - from hot dry gas followed by cooling in liquid
Inventor: NAGANO HIROO
IPC: B29C48/00
Filed: 1974-08-28
Abstract: A method of cross-linking a plastics or rubber coating on an electrical conductor wire consists of heating the coating after it has been applied, e.g., by extrusion, onto the wire, then cooling it. The heating stage is carried out by passing the wire in contraflow through a stream of hot gas, esp. inert gas such as nitrogen, or electrically negative gas such as SF6, pref. at 5-8 kg./cm2 pressure. The gas is pref. circulated by convection and heated by an organic heating medium, e.g., alkyl diphenyl. As compared with steam heating, the temp. is more easily regulated esp. with a short heating distance, and water and oxygen do not attack the coating.
Patent DE-2444574-A1 (DE)
Title: Film transport claw mechanism for cine projector - has a cam driven pivot lever pair for movement in two planes
Inventor: WAERNGREN SVEN CURT
IPC: G03B1/22
Filed: 1974-09-18
Abstract: The design is intended to simplify the construction of the intermittent film drive aggregate. The film claw is carried at one end of a lever which is pivoted about a horizontal axis at the other end. This lever is also hinged about a vertical axis a short distance in front of the pivot and it carries a flange with an inclined guide slot. A second spring loaded lever is pivoted horizontally and fitted with a drive pin which passes through the first lever's guide slot. An eccentric motor driven cam moves the second lever up and down. This movement is transmitted to the claw lever with a superimposed horizontal movement due to the inclination of the guide slot and the vertical hinge. The design is claimed to be reliable and durable in operation.
Patent DE-2449219-A1 (DE)
Title: 1-Nitro-anthraquinone from nitrated anthraquinone mixts. - by reaction with hydrazine in a solvent then precipitating
Inventor: EPPLE GERHARD DIPL CHEM DR
IPC: C07C/
Filed: 1974-10-16
Abstract: 1-Nitrolanthraquinone is prepd. from a mixt. of nitrated anthraquinones by reacting the mixt. with hydrazine in the presence of an inert solvent at 0-100 degrees C, followed by isolation in the normal manner. Prod. is used as an intermediate for preparing anthraquinone dyes, material of 96% purity may be obtd. by a single stage purificn.
Patent DE-2460435-A1 (DE)
Title: Moulding hollow thermoplastic articles - using nozzles to blow mould extruded sections
Inventor: LINSS GERHARD
IPC: B29C49/48
Filed: 1974-12-20
Abstract: A hollow thermoplastic article with controlled wall thickness is produced by extruding a rough tube from ring nozzle and blow moulding it to thickness not only by blow pressure but also additionally by an external air jet. Process produces sections different from those of the ring nozzle, so that a nozzle is not required for each desired section.
Patent DE-2460823-A1 (DE)
Title: Triazinium salts useful as intermediates in coumarin prodn - being esp 2,4-dioxo- 1,2,34-tetrahydro-1,3,5-5-triazinium salts
Inventor: SENG FLORIN DR
IPC: C07D251/10
Filed: 1974-12-21
Abstract: 2,3,4-tetrahydro-1, 3,5-s-triazinium salts of formula (I) are new: (where n is 1 or 2; R1 R2 and R3 are opt. substd. alkyl, alkenyl, cycloalkyl or aryl; if n = 2, R4 can be opt. substd. alkyl, alkenyl cycloalkyl or aryl, and if n = 1, R4 can also be H; and X is Cl or Br). Pref. alkyl gps. contain =18C; alkenyl gps. are mono- or poly-unsatd. aliphatic 2-10C gps., 5-12C cycloalkyl and aryl gps. may be Ph or naphthyl. Pref. substits are halogens, 1-4C alkyl, nitrile, carboxylate, OH, 1-4C alkoxy or opt. substd. aryl gps.). They are pref. prepared by halogenating 2,4-dioxo-hexahydro-1,3,5-triazines. (I) can be used as intermediates in prodn. of coumarin derivs. used as optical brighteners, and for introducing an aldehyde gp. into aromatics contg. a free amino gp. substit. Thus, (I) can react with 4-aminophenol to form aminal which can be hydrolysed to 4-aminosalicyl aldehyde, which can be converted to 4-acetylaminosalicyl aldehyde, known as starting material for 3-(1')-triazolyl-(1',2',3') -7-amino-coumarin.
Patent DE-2503510-A1 (DE)
Title: Propulsion equipment for recreational craft - has propeller and tailshaft of auxiliary motor foldable into streamlined housing of rudder
Inventor: LIEBAU CARL
IPC: B63H25/42
Filed: 1975-01-29
Abstract: The equipment may be an outboard motor or of any other type for which a double right-angle drive is acceptable. The propeller and tailshaft assembly (26, 28, 29, 31) plus the power/transmission unit (27) can, when not in use, be retracted into a streamlined housing which may be part of the rudder (21), some other projection below the hull, or the hull itself. When operating, the equipment may be angularly fixed or move with its housing. The propulsion unit can be fixed and there is a streamlined housing, possible an extension of the rudder, to side over it when not in use.
Patent DE-2504954-A1 (DE)
Title: Automatic power switch acting as overload trip for small installation - has manual cut out and reset with contacts on top and bottom of arc extinguishing stack
Inventor: ARNHOLD HANS
IPC: H01H73/18
Filed: 1975-02-06
Abstract: Automatic power switch acting as an overload trip with manual reset and cut out for use in small installations. The manual actuation is transmitted via a mechanical pawl and ratchet, switching an electromagnetic or a thermo-electric circuit with arc extinction plates in the front section of the chamber (1). The movable switching element consists of a single arm swivel contact (5) fitted directly to the front side of the extinguishing plate stack (20). The plate (25) at the bottom of the stack has an extension with the pivot (27) for the moving contact arm. The fixed contact (4) is mounted on the top plate of (26) the stack.
Patent DE-2510358-A1 (DE)
Title: Grid-covered concrete water drainage gutter unit - with gutter component above circular turntable flange connected to drain pipe underneath
Inventor: EICH MANFRED
IPC: E01C11/22
Filed: 1975-03-10
Abstract: The water drainage guttering unit, fitted with a rectangular metal grid, is in the form of a prefabricated concrete component for connection to a vertical run-off pipe, as installed in roads, paths or courtyards, with or without an odour-sealing siphon. The guttering component runs centrally above an annular turntable-type flange, for connection to the drainpipe which is sited underneath the unit, the unit itself being T-shaped. The gutter component is pref. longer and narrower than the max. diameter of the flange. There may be a rectangular run-off hole, with a trough-shaped metal cage between the flange hole and the gutter: and insertion lids for the ends of the gutter arms. Manufacture is simplified as also is laying and accurate alignment on site.
Patent DE-2515889-A1 (DE)
Title: Heater for infusion and transfusion fluids - has chemical reaction mixtures in jacket around infusion container
Inventor: ENGEL JOACHIM-MICHAEL
IPC: A61M5/44
Filed: 1975-04-11
Abstract: Heater for infusion and transfusion fluids whereby the fluid is heated approximately to body temperature by an exothermic chemical reaction has the total volume of heat from the chemical reaction supplied to the infusion or transfusion fluid either continuously or in stages. Pref., the exothermic chemical reaction ends in an insulated sleeve wrapped around the container for the fluid to be heated or the space for the reaction is integrated into the shape of the infusion fluid container. One component is in two separate chambers for a two stage reaction of necessary and this component is permitted to come in contact with the other reaction fluid when required (esp., for first aid emergency use). A temperature gauge indicates the level of heating reached.
Patent DE-2516667-A1 (DE)
Title: Profile copying sheet cutter - changes gradually from lower to a higher speed
Inventor: HAHN GUENTER
IPC: B23Q35/128
Filed: 1975-04-16
Abstract: In a photoelectrically controlled template copier cutter a gradual speed rise reduces transmission wear and cutter damage. A photo electric tracer with amplifier couples to a transmitter and resolver (74). At low speed, a capacitor (88) is connected with switches (86, 93) in a first position. Higher speed signalling closes a contact (91) and relay (92) putting those switches into a second position. The charged capacitor (88) activates a light source (78), and the potential set by a resistor (83) drops 70%. With capacitor discharge the luminosity weakens, photo cell (80) resistance drops and potential rises accordingly, feeding the resolver winding (74a). Speed changing time depends on the sizes of light source (78) and capacitor (88).
Patent DE-2516701-A1 (DE)
Title: IC engine capacitive ignition system - has capacitor switching element with a parallel inductance in series with oppositely poled diode
Inventor: HAUBNER GEORG
IPC: F02P1/08
Filed: 1975-04-16
Abstract: The internal combustion engine ignition system has a storage capacitor, charged from an alternating voltage source via a rectifier, and discharged via an electronic switching element and the ignition transformer primary. The transformer secondary is connected in the spark plugs. An inductance (21) preferably formed by a coil on an iron sheet strip, is connected in parallel to the electronic switching element (18) path. A diode (22) of opposite polarity to the switching element is in series with the inductance. The inductance coil may have up to 100 winding turns on a ferite core. The coil may be embedded in plastics together with the ignition electronic components (14, 15, 18, 22).
Patent DE-2521210-A1 (DE)
Title: Partions for card index filing cabinets - have flexible sheets which can be bowed to allow lugs to fit in holes
Inventor: BARTH GEORG
IPC: A47B57/58
Filed: 1975-05-13
Abstract: The filing cabinet (1) is provided with a shelf (2) and the space between shelves is divided by the partitions (3). These partitions (3) are made of resilient plastic or steel sheets and two small lugs are provided along both the top and bottom edges. Matching holes are provided in the shelf (2) and top cover of the cabinet (1) so that the partition (3) can be bowed to allow the lugs to be inserted in the holes. The partition then springs back to its normal flat form (3) when it is retained by the lugs fitting in the holes. This method of fitting partitions eliminates the need for grooves which collect dust or for ledges which cause obstruction.
Patent DE-2522968-A1 (DE)
Title: Shallow ski boot surmounted by adjustable anklet - anklet adjusting method incorporates corrugated metal or plastics retaining strip
Inventor: LEDERER JOSEF
IPC: A43B5/04
Filed: 1975-05-23
Abstract: The anklet (16) can move back or forward on the ski boot (10), freeing or firmly supporting the wearer's ankle as required for the terrain. It is held in position by a plastic-coated steel wire (18), which is fastened to the ski boot at each side (20, under the anklet) and passes round behind the Achilles tendon. Wire is held in one or other corrugation (24) of a strip of metal or plastic fastened to the back of the anklet. The corrugations are titlted, to prevent the wire from slipping inadvertently from one to another.
Patent DE-2537300-A1 (DE)
Title: Water pump primer for discharging jets from water tank - for automatically watering potted plants once or twice daily
Inventor: REPPERT HERBERT
IPC: A01G27/00
Filed: 1975-08-21
Abstract: Device for priming a water pump by automatic discharge from a water tank without supplying energy comprises a float which is coupled to a closure mechanism and which, when max. water level is reached in a water tank, has sufficient buoyancy to counteract water pressure acting on the closure mechanism in the outlet opening of the tank, thus allowing water to run off in a quantity sufficient to prime a siphon pipe. When the closure mechanism is raised, water enters and fills an air gap between the closure mechanism and pipe inlet, water pressure on the closure mechanism is released, the buoyancy of the float overcomes the suction due to initial water run-off, the closure mechanism rises and water enters the pipe in a quantity exceeding output of the pipe, thus setting it in operation until the closure mechanism once against rests on the outlet opening.
Patent DE-2539882-A1 (DE)
Title: Flexible torsion coupling between two axes - is especially for ship deck borne driving gear and has common spindle between two bearings
Inventor: BRUSSELLE ANDRE
IPC: F16D3/18
Filed: 1975-09-08
Abstract: The flexible torsion coupling is between two independent rotating axes each of which may take an inclination angle to the principal axis. The bearing members are of the same size but opposite hands. Each comprises a spindle (1) in end trunnions (2) immersed in an oil bath. These are supported by bushes (3) carried by chairs (4). The end faces of the spindle has spherical seatings on the races. In cross section the spindle has the form of a central square toothed core surrounded by a loose fitting mating sheath.
Patent DE-2543886-A1 (DE)
Title: Processing silver dye bleach materials - using 2,3-di-hydroxy-dioxan (deriv.) as hardener, preventing peel, cracking and reticulation
Inventor: NAKAMURA TAKASHI
IPC: G03C7/28
Filed: 1975-10-01
Abstract: The treatment of photographic colour materials by the Ag dye bleach process comprises the use of a soln. contg. a cpd. (I) of the formula: (in which R1 and R2 are H, alkyl or aryl or together can form a ring). (I) can be used in the pretreatment bath (before development), the developer or the fixing bath. (I) acts as hardener and prevents peeling of the emulsion, reticulation and cracking.
Patent DE-2559235-A1 (DE)
Title: Gasifying sewage, neutralising alkalis, decarbonising acids - using submerged rotor, intensifying contact between gas and fluid
Inventor: POEPEL FRANZ PROF DR ING
IPC: C02F3/16
Filed: 1975-12-30
Abstract: A down pipe feeds a gas such as air, smoke fumes, ozonised air, etc. to the side of the rotor turned towards the surface, whilst the underside sucks up the surrounding fluid and disperses both media at the rotor outlet. The rotor acts like a double blow pump or fan its wheel having vanes on both surfaces. The vanes extend beyond the circumference of the hum with top and bottom vanes in alignment. On the gas vanes, at least where they project beyond the hub, guide flanges are fitted. These project at right angles to the rotor axis in the direction of motion, over a shorter distance than the pitch of adjacent vanes. Design stabilises the dishlike flow of the mixed gas and fluid projecting it outwards horizontally farther, so that contact time between gas and fluid is increased.
Patent DE-2559289-A1 (DE)
Title: Descaling stainless steel using strongly acid aq. soln. - contg. sulphuric acid, nitric acid and hydrofluoric acid and thickener to form spreadable paste
Inventor: SCHMIDT MANFRED
IPC: C23G1/08
Filed: 1975-12-31
Abstract: Stainless steel, partic. austenitic Cr-Ni steel, is descaled pickled or burnished by treating with a strongly acid aq. soln. contg. (total) 10-85 wt. % H2SO4, NHO3, HF, or their salts, at a ratio of 0.42-5.1 mole nitrate to 0.29-3.47 mole fluoride to 0.33-4.0 mole sulphate, and which contains in addn. a surfactant and a thickener such as hydroxyethyl cellulose to give a paste which can be spread over the surface of the steel. The process does ot require a careful control of variations in concn. and time and eliminates a passivating post treatment. In an example, a thick layer of scale over the weld seam in a sheet of stainless steel type 12 CrNi 188 is removed by dipping for 20 min. into a 50% aq. soln. contg. 2.2 mole NHO3, 1.4 mole HF, 1.7 mole H2SO4 and 0.05 wt.% fluorsurfactant, at 25 degrees C. The sheet exhibits resistance to oxidn. scaling or there discolouration.
Patent DE-2600448-A1 (DE)
Title: Relay finder switch for switching systems - uses miniature relay or bistable relay which is allocated to output of each switch used in chain circuit
Inventor: DIRR JOSEF ING GRAD
IPC: H04Q3/00
Filed: 1976-01-08
Abstract: This relay is in the corresponding switch circuit. Starting units are provided only once for all switches. Means are allocated to all marking circuits for mutual decoupling, and a chain circuit is provided, preparatorily closing only switch marking circuits so that when started, only one marking circuit of this switch is closed. Switching means become operative in this circuit, which engage the switch and switch through the speech etc and control wires. The switch engaging relay switches move signals forward through the chain circuit.
Patent DE-2602064-A1 (DE)
Title: Vulcanising or hardening mould for multiple small articles - has local conducting or insulating inserts to optimise temp. distribution
Inventor: BECKER HANS
IPC: B29C33/02
Filed: 1976-01-21
Abstract: A mould for rubber or duroplastics articles comprises mould plates with mould inserts and is heated to vulcanise or harden the mouldings. Recesses and/or inserts of materials having different thermal conductivities from the plates are incorporated in mould plates, esp. in their contact surfaces with other mould plates or heating plates. Esp. used for mould assemblies comprising a large number of mould inserts for the prodn. of small mouldings. The inserts can have high thermal conductivity, e.g. they are of copper, where rapid heating is required and low conductivity, e.g. they are of asbestos, where slow heating is required.
Patent DE-2602619-A1 (DE)
Title: Electrical accelerometer with rotor and coil for signal induction - has disc rotor to avoid signal distortion due to rotor deflection
Inventor: GOEPFERT MAX
IPC: G01P15/08
Filed: 1976-01-24
Abstract: Electrical accelerometer has a magnet to produce a constant field, a rotating short-circuited rotor in the field, and a measuring coil in which an electrical signal is induced on rotation of the rotor, whereby the signal amplitude and/or frequency depends on the rotor speed. The rotor is disc-shaped, and the rotor, the magnet (30) and the measuring coil (40) are arranged so that a flat surface of the rotor lies opposite both the pole surfaces of the magnet and the coil with a clearance in each case. Pref. the coil consists of several series-connected partial coils located in gaps between the individual poles (2,3) of the magnet.
Patent DE-2602926-A1 (DE)
Title: Recorder for working operations - is designed so that employees can record own job details
Inventor: MARTIN HEINRICH
IPC: G07C1/10
Filed: 1976-01-27
Abstract: Recorder for working operations such as working times, labour costs, material usage etc. works in conjunction with job cards carrying individual values. The record (1) has the form of a drawing desk and is fitted with a recording medium supply, e.g. a paper roll (2, 6) and a printing head (3) to which the paper is fed over guide rollers. A knife (5) is also fitted to cut the paper at the appropriate points. The recorder may be designed for manual writing of the records or mechanical typing.
Patent DE-2614038-A1 (DE)
Inventor: REGELE BRUNO
IPC: G03D15/04
Filed: 1976-04-01
Abstract: A device for cutting strip-shaped material, in particular for strips of photographic paper with exposed and developed copies, with an intermittently operating advance device and a knife arrangement which severs the strips transversely to their travel direction into individual pieces or pictures is intended to make possible orderly collection of the cut pieces for automatic further processing. This is achieved by means of a holding device (2, 3, 4) provided downstream of the knife arrangement, which holding device positions each individual piece and dispenses it in the cycle of the cutter on a collecting table (6) arranged below said holding device. The individual pieces can thus be collected in an orderly stack which can be transported for further processing in a simple manner. <IMAGE>
Patent DE-2614746-A1 (DE)
Title: Capacitive transformation circuit for input voltage - has two capacitors alternately connected to load through switches and gates
IPC: H02M1/10
Filed: 1976-04-06
Abstract: The circuit comprises a capacitor (5) connected to a terminal for the input voltage (U). A second capacitor (6) is connected to a second terminal for the input voltage. Capacitors (5, 6) are joined together by their other terminals The capacitors (5, 6) are each connected during time intervals to a load (11) through a transistor switch (7, 8) and a gate (9, 10). As the collector-emitter paths of the transistors are between the input terminals and the load, half the input voltage is developed at any one time. The completer circuit incorporates a pulse generator.
Patent DE-2615916-A1 (DE)
Title: Portable machine tool with housing carrying motor - has tool chuck fitted at one end and handle at other end with ON and OFF switch
Inventor: ALESSIO LORENZO ERCOLE
IPC: H01H13/14
Filed: 1976-04-10
Abstract: The ON/OFF switch (16) for the motor is installed in the end of the handle (12) for ease of control. The operating element consists of a single narrow elongated part which is hinged at one end on the housing, and it has two end sections which pass through two holes in the housing, one of which is in the handle, and the other is in the middle of the housing; its middle part engages the push- button switching the motor. The power supply lead (29) emerges from the end of the handle, and the diameter of the handle is considerably smaller than that of the main part of the housing (11). The axis of the tool chuck is at right angles to the axis of the main housing and handle.
Patent DE-2619172-A1 (DE)
Title: Support for heavy duty frames - has curved sheet tube with lobed corners between top and bottom members
Inventor: KNIPPSCHILD GUSTAV
IPC: E04G25/02
Filed: 1976-04-30
Abstract: The support for heavy duty frames partic. for reinforced concrete, consists of a top member (3), a base member (2) and an intermediate part (1) made of steel sheet. In cross section, this sheet is bent into a square tube with a lobe (4) at each corner. The base carries pegs (13) which can be fitted into corresponding holes in the top member. The thickness of the steel sheet is between 2 and 3 1/2 mm, preferably between 2 1/2 and 3 mm. The ratio of the lobe radius (R1) to the radius (R2) of the concave curve between, is between 0.4 to 0.5, preferably 0.42. The sheet has holes (6) through it, top and bottom. The top and base can be steel castings.
Patent DE-2629222-A1 (DE)
Title: MODEM compartment for computer centre - has partition separating MODEMs from computer with switchboards holding various sockets for rapid interconnection
Inventor: BRAEM DIETER
IPC: G06F13/40
Filed: 1976-06-25
Abstract: In each computer connection line is provided an intermediate conductor (14) through a partition wall (7), leading one one side to one of a number of modems (5, 5a, 5b, 5c, 5d). Connections are sealed at the modem side by a terminal bush (22). On the other side of the partition is a computer with retaining bushes (16, 17) on the computer side. These lead to a switchboard (3) on which are fittings for cable-sheaths (9) and post office telephone type sockets (10). These terminal arrangements enable rapid connections and disconnections to be made between the modems and the computer units.