baber/WOPTO huggingface dataset:
Patent DE-2028491-A1 (DE)
Title: Semiconductor component contact system - using double metal layers and differential annealing/bonding
IPC: H01L21/00
Filed: 1970-06-10
Abstract: Semiconductor components, esp. of Ge, have one face at least covered with an insulating film leaving windolws for the application of contacts. a first layer of metallising esp. of Ag 400-800 angstroms thick, is deposited overall by evaporation followed by a second layer of esp. of Sb 50-150 angstroms thick at 150-250 degrees C. The whole is then annealed at 380-520 degrees C. at which allowing does not take place, for 5-15 mins. in a protective atmosphere. a good bond is formed between the Ge and the Ag without any barrier layer but the Ag-Sb sandwich is easily peeled off from the insulation film. A further metallising layer of Au may follow the Sb layer. Intermediate masking processes, with risk of contamination are avoided.
Patent DE-2053632-A1 (DE)
Title: Tri - and perchloroethylene purifcn - with an aq basic soln used as solvents in defatting plants
IPC: D06L1/10
Filed: 1970-10-31
Abstract: Solvents, esp. tri- or perchloroethylene, are purified by leading into a basic aq. soln whose basicity is sufficient for neutralisation of the acidic solvent and which additionally has a temp. which lies above the azeotropic point of the solvent H2O- mixt. to which it supplies sufficient heat for evapn. of the solvent and that after this the evapd. solvent-water mixt is cooled and the condensate sepd. into its 2 components. The solvents are used in defatting plants.
Patent DE-2116478-A1 (DE)
Title: Chocolate shell/tube prodn - by conventional moulding hardening walls and removing plastic centre by mechanical handling
IPC: A23G3/02
Filed: 1971-04-05
Abstract: After pouring into the mould, which is esp. one of a number clamped in a frame, a conventional cooling process takes place until the centre of the chocolate mass remains plastic whilst that in contact with the walls is fully solidified. The mould is then inverted over a moving scraper or rotary cutter, with independent timing controls for horizontal and vertical motion, and a defined channel cut mechanically in the mass. Accurate control of wall thickness reduces waste gas by breakage during subsequent filling (e.g. with liqueur).
Patent DE-2131205-A1 (DE)
Title: Printed circuit plates prodn - with metal core coated with plastic chemically degraded to improve plating with metal
Inventor: CHADWICK DONALD H
IPC: H05K3/18
Filed: 1971-06-23
Abstract: Metal core printed circuit plate mfr by depositing several synthetic resin films, such as polyrethanes, epoxy, polyimide, diallyl phthalate, polyester, polyurea, melamine-HCHO and silicone resins, pref. mixed with metal oxides as fillers, more pref. a metal salt or more pref. an oxide of Al or Be on metal, and chemical degradation of plastic coating, e.g. with a caustic permanganate, to improve anchoring of a primer film and adhesion of subsequently applied metal layers. After removing excess metal, the coating is heated until the uncovered parts of the degraded surface have returned to normal.
Patent DE-2162376-A1 (DE)
Title: Self adhesive protective paper - coated with copolymer of vinyl compound and alkyl methacrylate
Inventor: SPIELAU PAUL DIPL CHEM DR
IPC: C09J7/21
Filed: 1971-12-16
Abstract: Self adhesive protective paper/film for articles e.g. plate glass, polished plates, noble metal films, plastic sheets or veneers, consists of a flat support material coated on one both sides with an adhesive layer applied from an aqs. dispersion contg. an opt. chlorinated copolymer of 25-70 wt.% of >=1 vinyl cpd. e.g. vinyl chloride or acetate, and 30-75 wt.% of >=1 alkyl (meth) acrylate. Good initial adhesion to surfaces, and good permanent adhesion. Good resistance to heat, light and moisture. Can be removed from a surface without leaving residues.
Patent DE-2205209-A1 (DE)
Title: Rubbery elastic moulded articles - from liquid mixtures of carboxylated or hydroxylated polydienes and diels-alder
Inventor: MEYER REINHARD DR
IPC: C08C19/34
Filed: 1972-02-04
Abstract: In producing rubber elastic moulded bodies by casting a liquid compsn. into a mould and heating, a liquid polydiene with terminal COOH and/or OH gps. is reacted with an epoxidised Diels-Alder adduct from maleic anhydride and a 4 - 6C conjugated diolefine.
Patent DE-2207603-A1 (DE)
Title: Hot dip galvanising bath ventilation - using air curtains
Inventor: HOELTER HEINZ
IPC: C23C2/00
Filed: 1972-02-18
Abstract: The system comprises slot nozzles on either longitudinal edge of the bath, which generate air curtains converging in an overhead suction hood, which is connected with a gas neutralisation and dust extractor plant. Use of the air curtain reduces the power requirement for the suction fan whilst at the same time improving ventilation above the bath.
Patent DE-2209551-A1 (DE)
Title: Rubber gasket - for spoked wheel tubeless tyres, shaped as a thin walled sealing ring
Inventor: KUNZ MANFRED DIPL ING
IPC: B60C5/16
Filed: 1972-02-29
Abstract: The elastomer ring extends the width of the rim and fits tight against the rimer outer wall, in which, prior to stretching into shape on the rim, the gasket is a hollow cylindrical shape whose internal dia. is not greater than the smallest rim dia. Pref. the sealing rim is a rubber or plastic strip of flat, rectangular cross section with the overlapped ends bonded together.
Patent DE-2211899-A1 (DE)
Title: Opaque, white or coloured moulded bodies and coatings - mfr - from polymerisable moulding pastes contg unsatd polyesters and
Inventor: BROSE HORST
IPC: C08F283/01
Filed: 1972-03-11
Abstract: The moulding paste, which is transparent, contains 50% unsatd. polyester and is cured in known manner to give the opaque, opt. coloured moulding. The transparent paste may be used e.g. to impregnate paper, cellulose and glass fibres, which are then cured, and as coatings curable by u.v. light or ionising radiation. In an example, an unsatd. polyester with an acid value of 35, is prepd. in known manner from 26 pt. 1:2-propylene glycol, 16 pt. maleic anhydride, 20 pt. phthalic anhydride, 0.003pt. hydroquinone are added as stabiliser and diluted with styrene at 90-95 degrees C to 70% solids.
Patent DE-2220681-A1 (DE)
Title: Plastic clad timber - used for multicoloured weather resistant obstacles for horse jumping etc
Inventor: WIEGNER GEORG DIPL-KFM
IPC: A63K3/04
Filed: 1972-04-27
Abstract: Artificial obstacles, esp. for horse jumping, comprises posts or cross poles made of wood clad in a weather resistant resilient plastic. The wood may be covered with a foamed plastic, esp. polyurethane, pref. by spray-up on to the timber, prior to or after erection of the obstacle, or the cladding may be a transparent or translucent sheet pref. thermally retracted to fit, or timber cores may be inserted in a sheet plastic profile. Pref. coloured effects are obtained by using painted wood under a transparent sheath, or using partially superimposed sheets or profiles of differing colours, esp. sheet over or integral with a foam coating of a different colour. The synthetic cladding preserves the colours of or on the timber, and prevents the timber from rotting or becoming so brittle so that it would splinter dangerously.
Patent DE-2261753-A1 (DE)
Title: Transfer press workpiece holder - suitable for high speed operation
Inventor: WAGNER KARL
IPC: B21D43/05
Filed: 1972-12-16
Abstract: The holder for the workpieces prior to their being gripping by the transfer device comprises a fixed ejector inside the punch. This ejector houses a coaxial spring loaded ejector cum holder, which is vertically movable between two steps allowing minimum spring excursion. The fixed ejector is pref. fitted to the upper part of the press. The device subject to very low inertia effects is suitable for high speed transfer presses.
Patent DE-2326803-A1 (DE)
Title: Gallium melt satd. with gallium arsenide - for use as source for gas-phase epitaxy
Inventor: GISDAKIS SPYRIDON DIPL PHYS
IPC: C30B25/02
Filed: 1973-05-25
Abstract: Prepn. of Ga melt satd. with GaAs by passing over molten Ga a mixt. of AsCl3 and H2 is improved by reducing the AsCl3 feed rate as soon as a GaAs crust, which is formed on the Ga melt, reaches such a thickness that the diffusion of As into the inner of the Ga melt is hindered; the feeding of AsCl3 is resumed when the GaAs crust partly dissolves in the melt so that As can again diffuse into Ga. This cycle is repeated until saturation of the melt with GaAs is reached. By this method, excessive development of the GaAs crust (which is undesirable for the gas phase epitaxy) is prevented, and saturation of Ga melt with As is accelerated.
Patent DE-2332964-A1 (DE)
Title: Refractomer for mobile phase in chromatography - requires no automatic adjusting devices
Inventor: SCHMID KARL HEINZ DR RER NAT
IPC: G01N21/43
Filed: 1973-06-28
Abstract: The liquid flows through a measuring cell and the light transmission of several optical fibres of varying refractive index in the cell is monitored to obtain an indication of the refractive index of the liquid. The cell pref. comprises a curved tube containing the optical fibres with inlet and outlet connections for the liquid and with a light source and a photocell at opposite ends of the fibres and separated from the latter by a planoparallel transparent disc sealing each end of the tube.
Patent DE-2337910-A1 (DE)
Title: Plastics lining for actuator cylinder - ribbed contact surface of renewable lining
Inventor: SCHUSTER WALDEMAR
IPC: F16J10/04
Filed: 1973-07-26
Abstract: The metal casing of a brake, actuator or pressure reservoir cylinder is protected from the wear caused by the action of the piston by a renewable lining of plastics material. Pref. the lining has flexible ribs on the side next to the casing, which are bent over by the pressure between them. The lining terminates in a thick boss, held in position by the vent over neck of the cylinder, and a sealing ring is incorporated between this neck and the flat top of the boss.
Patent DE-2339220-A1 (DE)
Title: Radio beacon with several individual aerials - switched on in cyclic succession, all having identical amplitude direction diagrams
Inventor: PEUKER GUENTER DIPL ING
IPC: G01S1/02
Filed: 1973-08-02
Abstract: A radio beacon uses several aerials which rotate mechanically, and is for use in radiating signals in the TACAN radio navigation system. The present invention dispenses with the need for mechanical rotation of the aerials may be obviated by switching the aerials on and off in cyclic succession. The aerials whose main radiation directions are different, may be arranged in a circle or in a straight line. A switch connects the aerials through a lead with a duplexer which is connected to a receiver and transmitter. The time between switching on successive aerials is constant throughout as is the angle between them.
Patent DE-2344940-A1 (DE)
Title: Cct. breaker with electromagnetic, thermal and manual trip - has switching lever with compression spring abutting moving contact
Inventor: OTTE GUENTER
IPC: H01H71/52
Filed: 1973-09-06
Abstract: The line protective circuit breaker has a switching lever whose one end abuts a latching element, releasable by the electromagnetic and/or thermal trip, ewhile its other side is guided in a stationary recess by a manual actuator. This end actuates a spring-loade moving contact to coact with the fixed contact. Between the switching lever and the moving contact is arranged a compression spring, over which the moving contact is actuated. In the make position no tripping forces are transmitted to the moving contacts via the compression spring. A two-shank spring may form the compression spring secured to the moving contact by one shank, while the other one is under such tension as to bring the tripping spring against the moving contact.
Patent DE-2349192-A1 (DE)
Title: Bed with adjustable foot and top parts - has mattress partially connected to wire support for a flat secure hold
Inventor: POERINK JONNES JONGE
IPC: A47C20/04
Filed: 1973-10-01
Abstract: The bed has a rectangular mattress frame with articulated joints attached to the sides, and the mattress support comprising the adjustable foot and/or head part is mounted to swivel round the joints and has a separate wire mesh stretching from the foot and head parts. The mattress is connected along the underneath contacting the support to the top and foot parts of the support so that the mattress cannot slide about when the bed is adjusted at either end. By not covering the underneath of the mattress with material, it can be glued or heat welded to the wire mesh mattress support.
Patent DE-2351316-A1 (DE)
Title: Cold drawing thin walled weldless tubes - produces accurately concentric bore involves internal mandrel and external die
Inventor: LANGHANS WALTER
IPC: B23B5/12
Filed: 1973-10-12
Abstract: The tube is firstly not formed from an ingot. The outside surface at one extremity of the tube is turned exactly concentric with the bore. The tube is placed over a fixed mandrel, and an external guide or die fitted with a shaving knife is placed over the tube and is held concentric and axially level with the mandrel. The tube is then drawn between the mandrel and the die and shaving knife assembly. The dimensions and concentricity of the resulting tube are accurately predictable, as the knife cuts the exterior of the tube to leave a surface which is accurately concentric with the interior surface.
Patent DE-2361059-A1 (DE)
Title: Androst-17-beta-yl-alpha-pyrones prepn. - from 21-dialkoxy-20-keto-steroids
Inventor: FRITSCH WERNER DR
IPC: C07J9/00
Filed: 1973-12-07
Abstract: (Androst-17beta-yl)-alpha-pyrones of formula (I): (where Y is opt. ketalised oxo, opt. etherified or a DELTA3- or DELTA2- enol ether or -enamine gp.; R1 and R2 are H or opt. etherified OH; R3 is H, opt. ketalised oxo or opt. etherified OH), are prepd. by (a) reacting a 21-dialkoxy-20-keto-steroid of formula (II): (where -CH is an open or cyclic acetal grouping) with grignard reagent of formula (III): HalMgCH2OR4 (where Hal is Cl, Br or I; R4 is lower alkyl); (b) subjecting the resulting 20-hydroxy-21-oxo-22-alkoxy-steroid acetal (IV) to acid hydrolysis to give the corresp. 20-hydroxy-21-oxo-22-alkoxysteroid (V), any enol ether or ketal protecting gps. in the 3, 4, 6 and/or 15 posn. being cleaved simultaneously; (c) reacting (V) with a dialkyl alkoxycarbonylmethylphosphonate of formula (VI): (R5O)2P(O)CH2CHOOR6 (where R5 and R6 are lower alkyl) in the presence of an anhydrous base and an inert organic solvent to give the corresp. 20-hydroxy-21-alkoxycarbonylmethylene-22-alkoxy-steroid (VII); and (d) cyclising (VII) in an acid medium in the presence of iodine. Cpds. (I) have inotropic, cardiovascular and diuretic activity and are also useful as inters.
Patent DE-2362796-A1 (DE)
Title: Wear monitoring device for machine parts - uses plug of rapidly wearing material for detection of cavitation
Inventor: SEIFERT HANS
IPC: G01N17/00
Filed: 1973-12-18
Abstract: A measuring plug is inserted into the surface being monitored and/or into an adjacent surface. The plug consists of a material which, when subjected to positive or negative pressure shocks, wears more quickly than the material of the monitored surface, e.g. for detection of erosion or cavitation. The plug is pref. of technically pure Al. In the case of wear monitoring in sealed spaces such as combustion chambers of IC engines the plug may be fitted to the end of a rod inserted into the chamber. The rod may have a diameter of 6-7 mm and the plug a diameter of 2-3 mm.
Patent DE-2402350-A1 (DE)
Title: Maximum powers detecting device - detects maximum mean powers recorded over equal time intervals during accounting period
Inventor: JOACHIM WOLFGANG DIPL ING
IPC: G01R21/133
Filed: 1974-01-18
Abstract: A number of maximum counters, equal to that of mean values to be detected, is provided; they can be pulled up by a common resettable driver, coupled at the beginning of a reading period with a maximum counter. During the accounting period the driver is coupled to the counter with the lowest reading, until it has reached the reading of the next highest counter, which takes over the coupling. When the device has electromechanical coupling with two counters, the driver is provided with an electric contact which during the pulling up process is connected to a contact of a first counter, through which a coupling magnet is controlled, which switches on and off the other counter.
Patent DE-2407776-A1 (DE)
Title: Voltage regulator for TV receiver line output stage - has booster diode with transducer as variable regulating impedance
Inventor: DAUTE OTTO
IPC: H04N3/185
Filed: 1974-02-19
Abstract: The supply voltage regulator, for a television receiver's line output stage, has a transductor as variable impedance to regulate and stabilise the supply voltage. The transductor is connected by one half between the input supply and over a booster diode to the line transformer, and by the other half between +24V and its control voltage. The control voltage is derived from the line transformer's booster capacitor. This regulating method is only possible for output stages with voltage or IV feedback and with booster diodes carrying supply-current pulses; it cannot be used with output stages that are supplied directly with pure d.c. currents.
Patent DE-2410926-A1 (DE)
Title: Supply and braking circuit for DC motor - has thyristors in rectifier shorting back-EMF and braking rotor when motor supply fails
Inventor: WHITED JAMES SYDNEY
IPC: H02P3/12
Filed: 1974-03-05
Abstract: The supply and braking circuit, for a d.c. motor, has thyristors in the motor rectifier to short-circuit the back-e.m.f. and brake the motor when the supply fails. When the motor supply fails firing pulses are generated by a control circuit and applied to the thyristors. The rectifier unit contains an isolation transformer whose centre-tapped secondary winding is connected across the rectifier bridge input. The tapping point is earthed. The firing pulses for the thyristors are generated by an oscillator that supplies a pulse amplifier. The advantages of the circuit are its simplicity and cheapness.
Patent DE-2413107-A1 (DE)
Title: Double-card sliver feed to high-pile unit - has a switching arm synchronised with needle cylinder
Inventor: MENZENBACH HEINRICH
IPC: D04B9/14
Filed: 1974-03-19
Abstract: The control system for a double-carding unit to feed sliver to a high-pile machine, to give the pattern of the fabric from a circular pile knitter where a sliver is looped into the basic silver matl., uses switches which are operated by the rotating needle cylinder to determine the operating cycle of the two carding units. The system allows a tubular velvet or artificial fur fabric to be developed with longitudinal pattern stripes of variable width according to pattern requirements, using a conventional double-card unit with a high-pile machine.
Patent DE-2413906-A1 (DE)
Title: Flat disc sorting and transport system - has track widening from vibratory drum into several channels
Inventor: KELLER ALEXANDER
IPC: B65G47/14
Filed: 1974-03-22
Abstract: A vibratory drum delivers the items, which have cambered tops or rounded edges and flat undersides at random on a spiral track (6) which becomes wider as it leaves the drum, running in a cone pattern with an increasing slope in relation to the horizontal. The track has a series of parallel ribs (9) forming guide passages (10) for the items, and of width greater than the item (17) diameter. Each passage discharges into two end passages (12, 13) sloping steeply downwards, in front of which a sorting diverter (19) is mounted. One of the end passages has a spiral in it, rotating the items through 180 deg. A sickle-shaped portion of the drum can be arranged to cover the widening track. The parts of the guide passages before the end passages can run straight on a plate, separated from the drum by a gap (11) and sloping.
Patent DE-2414749-A1 (DE)
Title: Rotating astronomical chart for heaven and earth - has basic astronomical plate representing entire celestial sphere
Inventor: KUMP ROBERT DIPL PHYS
IPC: G09B27/04
Filed: 1974-03-27
Abstract: In the middle of the celestial sphere there is the earth which is illuminated by the sun, represented by the intersection of its declination circle with the elliptic, and which is enlarged at will. On the earth its parallel circles and the meridian are used to connect a certain observation point of an arbitrary horizone of any point on the earth chronologically with the events on the celestial sphere by means of graduated circles. The basic astronomical plate is circular and cut out. Each of two astronomical charts represents the entire celestial sphere. Transparent plastic rotary discs may be used to achieve corrent orientation of variable objects as, for example, the solar planets.
Patent DE-2418796-A1 (DE)
Title: Metal encapsulated gas insulated bus duct - is fitted with local internal insulation to confine arc faults to selected areas
Inventor: BRUECKNER PAUL PROF DR ING DR
IPC: H02G5/06
Filed: 1974-04-19
Abstract: The object of the arc resistant insulation, which is applied on the nner surface of the enclosing metal duct, is to direct any arcing fault away from areas where the duct wall happens to be thick, for example in the region of a joint flange. By directing the arc to a thin part of the wall the latter is soon melted through and the internal pressure relieved, whereas an arc to a thick part could cause a pressure build up sufficient to rupture the tube before it melts. In tubes requiring many local thick sections the whole inside of the duct may be lined.
Patent DE-2424770-A1 (DE)
Title: Optical improvement of TV CRT - uses charged plastics surface for collecting CRT emitted waves
Inventor: KOENIG ALFRED
IPC: H01J31/22
Filed: 1974-05-22
Abstract: The television cathode-ray tube reproduction is improved by providing a m ulti-dimensional image reproduction by using the emitted electromagnetic wave for impingement on a glass or electrostatically charged plastics surfaces. After incremental charging of the plastics surfaces etc. the multi-dimensional reproduction is attained. During charging of the plastics surfaces the electromagnetic waves are also considerably braked, which not only protects the viewers but also enables image observation from closed quarters.
Patent DE-2426810-A1 (DE)
Title: Interchangeable handle cutlery set - has different handles for one head set for everyday and special occasion use
Inventor: BUBIK GEB FANGER BAERBEL
IPC: A47G21/06
Filed: 1974-06-04
Abstract: The cutlery comprises at least a set of knives, forks and spoons which are of the same size and are provided with one set of handles (1) for every day used and with at least another set in a different design for special use. Each handle is provided with a socket housing or sleeve (8) for fitting onto the shaft (6) of the knife, fork and spoon members which are then securely fixed by connecting means such as screws or nuts, or spring biased members, which after assembly expand to provide a clamping effect. Thus two sets of cutlery are available for basically the prices and storage space of one.
Patent DE-2434746-A1 (DE)
Title: Quantity and pressure control for bottle-filling machine - maintaining constant pressure in liquid receptacle with minimum gas consumption
Inventor: BAATZ UDO DR ING
IPC: B67C3/28
Filed: 1974-07-19
Abstract: Apparatus for control pressure and liquid quantity in liquid receptacles of bottle filling machines by controlling supply of liquid comprises inside the receptacle a row of liquid level indicators which switch the liquid supply on and off, and a pressure detector for admitting pressure to the liquid receptacle, with three switch positions of which the lowest is connected to the liquid supply to switch it on and to a gas inlet valve, of which the middle position is free from switching and of which the third postion is connected to the liquid supply to switch it off and to a gas outlet valve on the receptacle. The level indicator pref. consists of a pair of electrodes of which the upper and lower electrodes serve as max. and min. values respectively.