baber/WOPTO huggingface dataset:
Patent DE-2840342-A1 (DE)
Title: Neutralising aq. raffinate for reuse of water in uranium winning - by adding lime, oxidising by introducing air and filtering to remove impurities (OE 15.11.79)
Inventor: SLIVNIK JOZE PROF DR
IPC: C02F9/00
Filed: 1978-09-15
Abstract: The raffinate is first treated at 15-80 degrees C with a slight excess of lime to obtain a pH of 9-10; and then air is injected into the raffinate to oxidise divalent iron and manganese. The water is sepd. from the resulting ppte. and is reused in the treatment of ore. The raffinate is obtd. e.g. in the treatment of silicate ores contg. U, which are crushed and leached with H2SO4 and an oxidant. The U soln. is treated to remove U, leaving a raffinate contg. impurities; and the invention purifies the aq. raffinate so it can be reused.
Patent DE-2841425-A1 (DE)
Title: Photomask alignment on semiconductor wafer - by mechanical pressure and gradually expanding gas pressure
Inventor: KOMORIYA SUSUMU
IPC: G03F7/20
Filed: 1978-09-22
Abstract: An intimate contact between a photomask and a semiconductor wafer is achieved by applying an air pressure on the wafer holder. A vacuum around the wafer intensifies the contact. Gas (N2) is first admitted to the centre under the wafer, and a vacuum is applied to the periphery. The gas application is gradually expanded concentrically outward until the whole wafer has been covered. The contact between mask and wafer during the photolithography is intensified. The time required to produce a good contact is reduced and mask and wafer can be easily sepd. afterwards.
Patent DE-2843052-A1 (DE)
Title: Surgical instrument sterilisation and storage frame - has hinging front stirrup and sliding blocks held magnetically on bars
Inventor: SUTTER HERMANN
IPC: A61B50/20
Filed: 1978-10-03
Abstract: The sterilisation and storage frame is for surgical instruments, such as foreceps, shears, needle holders etc, comprising a frame, pref. of hifh-grade steel, with inserted magnetic cross-bars supporting and holding the instruments. The front part of the frame is formed by a hinging stirrup (2), and there are sliding adjustable holding blocks (7) on the cross-bars (4), secured to the latter magnetically. The bars can be magnetised by the application of permanent-magnet sheets (5), while the blocks have inlaid ferromagnetic plates in the underside.
Patent DE-2851507-A1 (DE)
Inventor: MEIER H R DR
IPC: F28F9/16
Filed: 1978-11-29
Abstract: Disclosed are means and method for forming elastic connection between ceramic and metallic structural elements. The means comprises a ceramic structural element; a metallic structural element having thermal and elastic properties different from those of the ceramic structural element; and a connecting element connecting the ceramic and metallic structural elements and comprising an insulating resilient body of ceramic material having a thermal conductivity of between about 0.02 and 0.25 W/cmK at a temperature difference between the ceramic and metallic structural elements of from about 100 to 1500 Centigrade degrees, an elastic modulus of between about 5000 and 150,000 N/mm2 and being substantially free of plastic deformation.
Patent DE-2853003-A1 (DE)
Title: Range-finder for camera - has semiconductor light emitter and photo receivers mounted on common carrier plate behind lenses
Inventor: MATSUI TORU
IPC: G02B7/32
Filed: 1978-12-07
Abstract: The distance measuring system for a camera has a light emitter (10) which directs a beam of light at the subject (T) and from which light is reflected back. Dependent on the distance of the subject, and hence the angle of the reflected light, that latter strikes one of a line of photo elements mounted on a collector strip (13) inside the camera. Each element is connected to a measuring and control circuit. The elements are rectangular in shape and mounted in common with the emitter, which is a semiconductor device on a common panel. The light beam passes through a lens with its optical axis approximately parallel to the optical axis of a second lens (12) for the reflected light. The two lenses are rectangular in shape with a plane rear face parallel to the photo elements.
Patent DE-2855594-A1 (DE)
Title: Amateur diapositive copying device using film strip - has viewing lens alongside film housing with lamp and optical system below
Inventor: STEMME OTTO DIPL PHYS DR
IPC: G03B17/50
Filed: 1978-12-22
Abstract: The photographic device for making copies of diapositives on a self developing film cassette has a housing for a lamp, a viewing section and a section for supporting the cassette strip. The diapositive is supported above a diffuser, and under the viewing lens. The cassette strip is housed in a carrier adjacent to the lens, containing unwinding rollers for the strip. Light passes through the diffuser to a mirror which is swung upwards by a handle on the outside, under the viewing lens, to be reflected onto another mirror lower down. This reflects the light upwards towards the cassette. Between the two mirrors is a projection lens.
Patent DE-2900508-A1 (DE)
Title: Autoclave agitator - has cooled motor housing with cooled wall section which is mounted on flange in autoclave wall
IPC: B01J3/04
Filed: 1979-01-08
Abstract: Autoclave has fan for recirculating the medium found inside it. The motor for the fan is mounted externally inside a cooled pressurised housing. The enclosure is separated from the autoclave by means of a cooled wall. The wall of the autoclave has a flange welded to it which is used to mount the motor and its housing. The wall section has cooling passages for water to be pumped through. For use in systems where reactions and processes are operated at high temp. and pressure. Allows a circulation fan to be introduced into the autoclave without causing shaft sealing problems.
Patent DE-2901577-A1 (DE)
Title: Electrolytic gas scrubber - having conducting graphite packing through which wash liquor flows and across which a potential is applied to oxidise or reduce gas
Inventor: KREYSA G DR
IPC: B01D53/32
Filed: 1979-01-17
Abstract: Gaseous components in gas streams are removed by contact with a solvent liquor, such as water, in the presence of an electrical potential. One electrode is formed from a fixed bed or conducting packing held in a column through which a wash liquor, in which the gaseous impurity is soluble, is passed.
Patent DE-2905843-A1 (DE)
Title: 1,1'-Di:alkyl-4,4'-bi:pyridylium di:halide prepn. - by reacting 4,4'-bi:pyridyl with alpha-halo acid while heating in water, until pH is below 4
Inventor: CHEN MING-FENG
IPC: C07D213/22
Filed: 1979-02-15
Abstract: Prepn. of herbicidal 1,1-dialkyl-4,4'-bipyridylium dihalide (I) comprises reacting reacting 4,4'-bipyridyl (II) with an alpha-halogen substd. organic acid of formula XR1COOH (III) while heating in the presence of water, and terminating the reaction at pH =4.0. In (III) R1 is 1-3C alkyl substd. by X in the alpha-posn.; and X is Cl or Br. Process avoids the use of alkyl halides or alkyl sulphates, does not require organic diluents and provides conversions of >=95%. The prod. obtd. does not require purification. Reaction time is considerably shorter than when using alkyl halides or alkyl sulphates.
Patent DE-2906355-A1 (DE)
Title: Barbed strip laid from coil - has guide notches ensuring accuracy of barb cut positions
Inventor: FRIEDRICH HELMUT DR ING
IPC: E04H17/04
Filed: 1979-02-19
Abstract: The barbed strip is designed for laying by a mobile machine over long distances from coils. It has guide notches (1) ensuring that the cuts (3) forming the barbs are exactly positioned, and that the steel barbs are bent outwards (2) accurately along their roots (4), also stabilising the strip. The notches can be stamped out of the strip at regular intervals along both sides, the barb cuts being formed between them. To save space, the barbs can lie in the plane of the strip while this is wound onto the coil.
Patent DE-2912211-A1 (DE)
Title: Slide transparency storage and handling system - includes viewing window and slider and spring presses stack of slides upwards
IPC: G03B23/02
Filed: 1979-03-28
Abstract: The slide viewer has a housing (1) with a viewing window and a slider (7) parallel to the latter which can be retracted via an opening (14) in the side of the housing (1). A stack (15) of film slides is contained within the housing (1) beneath the viewing window and is pressed towards the latter via a spring element (3). A film slide is removed from one side of the stack when the slider (7) is retracted and returned to the opposite side of the stack (15) when the slider (7) is pushed back in. A friction element (23) at one side of the stack (15) is caused to rotate by the retraction of the slider (7) to feed the top film slide (11) from the stack (15) to the slider (7) for subsequent reinsertion at the bottom of the stack.
Patent DE-2912324-A1 (DE)
Title: Monostable or bistable enclosed electromagnetic relay - has external coil to operate spring biased armature through casing magnetic circuits
Inventor: ROTTER HANS
IPC: H01H51/28
Filed: 1979-03-28
Abstract: An electromagnetic relay for monostable or bistable operation. The magnetically conducting base unit (1) has a stepped construction to support the spring sets and relay armature (6). The armature and spring set units housed in the base (1) are covered by a lid (2) which is non-magnetic. The armature and spring sets are in an inert gas atmosphere and electrical contact is by pins through the base (1) housing. A yoke support on top of the lid (2) carries the relay spool (12). The unit has been designed for small size and operating versatility, when not energised the armature (6) is held against the lid (2) by a spring (8). The armature (6) carries a contact unit (9) to break a lower contact spring (10) between two further pin connections (3, 4) through the base. When the spool is energised the armature (6) is either pulled down one side onto a base step ledge or pulled down both sides according to the type of armature, soft or permanent magnet, and the magnetic circuit established through the base (1).
Patent DE-2914100-A1 (DE)
Title: Oblong cushion prodn. system - pulls covering with fusible glue on inside over core, sides and top
Inventor: GRUNER WILLY
IPC: B68G7/05
Filed: 1979-04-07
Abstract: The system produces oblong cushions, partic. for church pews, the cushions consisting of a core and a covering. The covering material (2), coated on the inside with fusible glue, is pulled over the top and sides of the core (1). After it has been pulles over the top and sides, the covering material is folded over on the underside along the lengthwise edges, being then stitched at the corners. The covering is then permanently secured to the core by heating and pressure, leaving an uncovered zone on the centre of the underside.
Patent DE-2915786-A1 (DE)
Title: Fuel injection control circuit - improves acceleration performance by reducing control fluid pressure in consequence of sudden increase in inlet manifold depression
Inventor: MAISCH WOLFGANG DIPL ING DR
IPC: F02M69/26
Filed: 1979-04-19
Abstract: The pressure in the control fluid system (32) is set by an orifice plate (33) and by an electromagnetic regulator valve (37). The latter is responsive to electrical signals derived from engine operating measurements, for example, load, speed, temp., and exhaust gas analysis. The control fluid pressure, as determined by the flow rate, sets the steady state operating point of the fuel injector valve (7). If the throttle (6) is suddenly opened to accelerate the engine the manifold depression increased is sensed (3) and mechanically moves the fuel inlet slider (11). More fuel is admitted but, because the control fluid pressure has not altered, cannot leave the injector valves. The resultant transient rise in fuel pressure is used to operate an interruptor valve (54) in the control fluid circuit. The drop in control pressure then results in an immediate increase in fuel output from the pump (7). When the transient is over, control reverts to steady state conditions.
Patent DE-2916609-A1 (DE)
Title: Radioactivity analysis of naturally occurring minerals - using appts. over the mineral which detects secondary response to radioactivity
Inventor: KRAPIVSKIJ EVGENIJ ISAAKOVITSC
IPC: G01N23/221
Filed: 1979-04-24
Abstract: The equipment consists of a radioactive source (1) and a detector (2) which measures the secondary emission from the mineral sample (15). The source and detector are attached to a beam (3) which is rotated above the sample by means of an electric motor (11) so that the detector follows the path of the source over the sample after a specific time delay. The positions of the radioactive source and the detector on the beam can be adjusted radially and also tangentially so that the two are not necessarily diametrically opposed in their orbit above the sample.
Patent DE-2919385-A1 (DE)
Title: Forming mono:crystalline metal or alloy layers on substrates - starting from amorphous layer heated from seed crystal formed by laser beam
Inventor: POLITYCKI ALFRED DR
IPC: C30B1/02
Filed: 1979-05-14
Abstract: The substrate is made of amorphous-, and esp. of vitreous-material, and is provided with an amorphous metal or alloy coating. Coating is then heated in sharply defined local zones to form at least one crystal nucleus or seed, from which a single crystal is grown across coating without melting. The locally heated zone is pref. formed by a laser beam on a layer covered with a mask to form a small region contg. the initial seed crystal, and a larger region in which the monocrystal is formed. To form layers used as conductor paths; electrical resistors; capacitor electrodes; or in magnetic film memories. Monocrystalline metal layers have high conductivity on semiconductor circuits.
Patent DE-2934032-A1 (DE)
Title: Drive system for any type of vehicle - has centrifugally propelled balls transferring impulse to vehicle and returned magnetically
IPC: F03G3/00
Filed: 1979-08-22
Abstract: The engine has two rotors (2,3) spaced axially along a shaft. A motor between them turns them in opposite directions. Each rotor consists of two hollow tubes diametrically opposite each other. Their outer ends are turned to face tangentially into the direction of rotation. Heavy balls (18) are flung out from these ends and travel in the direction of motion of the vehicle to be caught in funnels (21,22) which conduct them to an impact tube (19). Their kinetic energy is absorbed and transferred to the vehicle. They are then returned to the centre of the rotor by a magnetic system along a central tube (23).
Patent DE-2934810-A1 (DE)
Title: Plastic sack stacking machine - has rake on endless chain travelling in plane in which sacks are delivered
Inventor: ROCHLA KURT
IPC: B31B19/98
Filed: 1979-08-29
Abstract: The machine deposits plastic sacks or bags in stacks, using a rake swinging about a horizontal axis, and which removes the sacks in succession from a conveyor belt and stacks them on a supporting surface. The rake (16) is mounted on an endless chain (15), travelling in the direction and in the plane in which the sacks are delivered from the production machine by the conveyor belts (19). It can be arranged to hinge on two pins spaced apart, and typically in planes at right angles to each other as the chain passes over the sprocket (14).
Patent DE-2937124-A1 (DE)
Title: Detector system for computer tomographic scanner - consists of four electronically scanned charge storage devices
Inventor: PFEILER MANFRED DIPL ING DR IN
IPC: A61B6/03
Filed: 1979-09-13
Abstract: To achieve high resolution with a CT-scanner a great number of detectors are desirable. This number is limited for reasons of detector efficiency. The problem is overcome by employing electronically scanned charge storage devices as used in TV cameras. Four such devices (11,12,13,14) are arranged stationary round the patient (7) with the X-ray tube (1) mounted on a frame (3) rotating round the patient, but inside the box formed by the detectors i.e. the charge storage screens (17). The X-ray beam passing through the patient from various angles produces charge patterns on these screens which correspond to tissue densities. The resultant data are processed in a computer (15) and visualised on a TV-monitor screen (16).
Patent DE-2940102-A1 (DE)
Title: Duty cycle measurement for electromagnetic valve drive - has threshold switch, integrating capacitor and current source temp. compensation
Inventor: SINGER ERICH
IPC: G01R29/027
Filed: 1979-10-03
Abstract: A duty cycle measurement device for an input signal subject to noise is used to control the electromagnetic valve in a fuel delivery system of an IC engine is simply constructed, operates accurately and reliably, and is insensitive to noise. It also operates independently of the type of current regulation used for the magnetic valve. The output of a threshold switch (25) with a switchable threshold level is connected directly or indirectly to a controlled current source (27) driving an indicator (48). A capacitor (42) integrating element may be connected to the current source (27) input. The current source has a temp. compensation zener diode (41) also connected to its input. For an electromagnetic valve operating voltage of approx. 14 volts the threshold levels are approx. 7 and 25 volts.
Patent DE-2942153-A1 (DE)
Title: Radio-controlled remote fire alarm system - has HF transmission link between transmitters and central receiver station
Inventor: HARTMANN HEINRICH
IPC: G08B25/14
Filed: 1979-10-18
Abstract: The remotely controlled fire alarm system has a number of transmitters coupled to a display facility. The system includes a facility for indicating the state of readiness of each channel. The system uses 2 to 8 radio transmitters with a receiver having 4 to 16 indicator lamps. Each transmitter has an oscillator, drive stage and power stage. In each modulation stage, two signals are generated and are selected by a switch. The receiver contains 2 to 8 quartz oscillator receivers with modulation stage, switching stage and supply. The system operates on the frequency bands of 27MHz and 38-40 MHz.
Patent DE-2948038-A1 (DE)
Title: Small cylinder for resistance welding - has supply to welding electrode not hindering movement or increasing size
Inventor: POLLMANN WERNER DIPL ING
IPC: B23K11/31
Filed: 1979-11-29
Abstract: The welding cylinder has its sheath (1) and piston rod (6) made of electrically conducting material (eg copper or aluminium) and both design with a cross-section adequate to carry the required current density. The guide for the rod passes through the end face of the cylindrical sheath and has an axial length minus the length for sealings of 1 to 2.5 times the diameter of the rod. At this place the rod and the cylinder sheath are connected electrically by a moving contact. The piston (5), piston rod and welding electrode (8) are hollow to carry a coolant.
Patent DE-2949004-A1 (DE)
Title: Press button dialler for telephones - is made as clip-together unit with component circuit board under switch contact circuit board
Inventor: NIEDERHOEFER KARL-HEIN ING GRA
IPC: H04M1/23
Filed: 1979-12-06
Abstract: The press-button key pad dial is for telecommunications equipment. The unit is easy to assemble and is not screw assembled. The body (1) supports the press buttons (2) which operated through an internal frame (7) to directly operate (13) a side cam or the side contacts (20,28,21) on a circuit plate (11) below the press button support frame (7). The bottom unit of the keypad is sprung attached (15,32,33) under the keypad circuits plate (11) and houses the electronic components on a further circuit board (22). Pillars (16,23) are used internally to support the circuit boards (11,22), spring contacts (27) connect the rear circuit board (22) with the key-pad circuit board (11). Also the rear circuit board (22) is interchangeable to provide other signalling arrangements.
Patent DE-3000905-A1 (DE)
Title: Amorpher halbleiter
Inventor: OVSHINSKY STANFORD R
IPC: H01L31/00
Filed: 1980-01-11
Abstract: Method of making a semiconductor film comprising a solid amorphous semiconductor host matrix including at least one element and having electronic configurations having an energy gap and localised states, comprises depositing on a substrate a matrix including at least one element by glow discharge decomposition of a cpd. contg. at least one element and one alterant element. The deposition is effected in a partial vacuum having an atmos. separately contg. at least one alterant element not derived from the cpd. Specifically, at least one of the alterant elements is incorporated in the matrix during deposition yielding an altered amorphous semiconductor with altered electronic configurations with a reduced density of localised states in the energy gap. Amorphous semiconductor Si solar cells can be prepared with an efficiency approaching that of monocrystalline Si solar cells at a much lower cost.
Patent DE-3005871-A1 (DE)
Title: Highly manoeuvrable invalid chair - has four castor wheels on cross shaped carrier between drive wheels, and vertical seat carrying column
IPC: A61G5/00
Filed: 1980-02-16
Abstract: The wheelchair designed for maximum manoeuvrability, particularly for negotiating spaces between furniture in an office, has two wheels (30,31) with tyres (30a,31a) forming the drive wheels for manual operation. The seat is also supported by four castor wheels (25) attached to brackets (22) allowing them to swing about a vertical axis (23) as well as rotate about a horizontal axis. The castor wheels are mounted at the four ends of a cross shaped frame (20) with a pillar (11) projecting upwards from its centre carrying an extension (12) which supports the seat. The cross member (30) carrying the two main wheels is attached to this pillar. When weight is applied to the seat, the tyres are compressed to the level of the castor wheels.
Patent DE-3012414-A1 (DE)
IPC: G01N27/72
Filed: 1980-03-29
Abstract: A coin testing apparatus (10) comprises a coin passageway, a coin track (13) along which coins pass on their edges through the coin passageway and an inductor (16) adjacent the coin passageway. The inductor is connected in an oscillating circuit (40) so that the inductor (16) produces an oscillating magnetic field in the coin passageway. The frequency of the oscillating circuit is measured using a counter (41). A number representative of the idle frequency is stored in register (44). When a coin passes the inductor (16), the apparatus (10) detects whether the resulting frequency shift corresponds to the shift for an acceptable coin by comparing the difference between the number stored in register (44) and the number stored in counter (41) with a number previously stored in memory (48). The inductor (16) is oblong and has its major axis perpendicular to the track so that the arrangement is sensitive to variations in diameter over a large range of diameters.
Patent DE-3016810-A1 (DE)
Title: Luminescent raster screen - has array of micro-lenses collimating output image along viewing axis
Inventor: RETTICH RENATE
IPC: G03B21/625
Filed: 1980-05-02
Abstract: A luminescent raster screen has a set of gas discharge cells with luminescent coatings behind an array of microlenses (L) to collimate the light output along a viewing axis and enhance the intensity of the display. The lenses are plano-convex with the flat sides facing the screen, or can be cylindrical shaped. The refractive index of the lenses is selected w.r.t. the pod walls and the raster frame to prevent dispersion so that max. brightness is directed along the viewing axis. The lenses can be transparent to selected colours when mounted in front of a multi-coloured screen.
Patent DE-3017424-A1 (DE)
Inventor: BOEHM WOLFGANG DR ING
IPC: H01H1/02
Filed: 1980-05-07
Abstract: There is described a material for electrical contacts based on silver having 5 to 20 weight % tin oxide and 0.5 to 5 weight % tungsten oxide which has the welding strength reduced further without producing an increased switching temperature. The material contains additionally 0.1 to 5 weight % of bismuth oxide.