baber/WOPTO huggingface dataset:
Patent DE-2223972-A1 (DE)
Title: Replenishment of exhausted sodium chloride soln - - from chlorine-alkali electrolysis
Inventor: RABOWSKY HANS DIPL CHEM DR
IPC: C25B15/08
Filed: 1972-05-17
Abstract: Crude rock salt is dissolved in an exhausted ag. NaCl soln., and impurities are ppted., with Na2CO2 and BaCO3 in presence of NaOH and removed by filtn. using filtn. aids. This process is improved by adding such an amt. of the filtn. aid (pref. BaSO4 sepd. from the previous ppte. by the gravitation method) that the CaCO3 content w.r.t. total undissolved substances is reduced below 15 wt.%, whereby the filtn. props. of the ppte. are greatly improved (it was found that CaCO3 hinders the filtn.).
Patent DE-2231000-A1 (DE)
Title: Vacuum-tight flanged containers - by rolling and stretch-forming a metal disc round a mandrel
Inventor: SCHAAF SIEGFRIED
IPC: B21D51/24
Filed: 1972-06-24
Abstract: Cylindrical flanged tanks are folded and stretch-rolled from a single disc of metal around a smooth mandrel whose shape corresponds to the interior of the tanks. After the initial forming, the sides are stretched by further rolling to increase their length, reduce the thickness, and hence increase the strength. The very smooth interior surface, down to 10 mu m, allows very good tolerance to be maintained, and the absence of a weld eliminates intercrystalline corrosion problems. Difficult-to-form materials such as AlMg3 can be processed, and the tanks can be used under high vacuum (10-10 mmHg). Ordinary forming machines can be used.
Patent DE-2251708-A1 (DE)
Title: Ppted barium sulphate as turbidifier in plastics - for lampshades, etc. giving increased light diffusion with reduced opacity
Inventor: GRASSMANN WOLFGANG DIPL CHEM D
IPC: C08K3/30
Filed: 1972-10-21
Abstract: Ppted. BaSO4 of ave. particle size 2-12, pref. 4-9 mu, and isometric, pref. bi-pyramidal crystal form is used in thermoplastic or thermosetting polymers to give a cloudy appearance. The ave. particle size (do) is pref. related to the refractive index (nk) of the plastic by the expression do=(100. nk-141)/2. The BaSO4 is much superior to ppted. BaSO4 with plate-shaped or dendritic crystal form, giving higher diffusion and increased light transmission. When added to clear transparent plastics, the compsns. are suitable for lamp shades etc. to conceal the light source while allowing passage of light.
Patent DE-2256143-A1 (DE)
Title: Washing machine water supply valve - with electro-magnetic action to give gradual operating action
IPC: F16K47/02
Filed: 1972-11-16
Abstract: The valve, in a metal or plastic construction, is mounted in the washing machine and/or the main supply tap, to give a gradual operation of the water supply or shut-off, according to the washing programme. This prevents the shock stresses of the water from fracturing the supply pipes which would allow the water to spray.
Patent DE-2257193-A1 (DE)
Title: Gas reaction chamber for e.g. steam - has heater with flame trap in suction unit at top of housing
Inventor: HARTUNG ROLF
IPC: C23C16/44
Filed: 1972-11-22
Abstract: The reaction chamber may be used for vapour phase synthesis reactions or for doping of semiconductors with hydrogen or producing an oxide layer. A housing like a cupboard contains a series of reaction chambers connected in series and provided with gas inlets, valves, pressure regulators and flow meters. The extractor fan at the top of the housing keeps the pressure below atmos. The fan exhausts through a flame trap and a heater which raises the gas to a temp. sufficiently high for the hydrogen to burn in a burner supplied with air immediately above the heater. The water so formed may be condensed in a separate condensing appts.
Patent DE-2326186-A1 (DE)
Title: 2,2-dibromo-2-cyanoacetamide prepn - by reacting cyanoacetamide with bromine and adding bromate
Inventor: SOLEM RICHARD HAMPTON
IPC: A01N37/34
Filed: 1973-05-23
Abstract: is prepd. by reacting cyanoacetamide with Br2 in aq. soln. at is not 40 degrees C, the concn. of the HBr formed being kept below 20% and a sol. bromate being added to the aq. soln. to oxidise HBr to form Br2.
Patent DE-2331345-A1 (DE)
Title: Widely distributed synchronous clock system - is synchronised by a master clock hierarchy
Inventor: SCHAEFER HALMUT DIPL ING
IPC: G04C13/02
Filed: 1973-06-20
Abstract: A system for synchronizing electric clocks in a large network - like a railway system - is described. Each local sub system is controlled by its own master clock. These master clocks are in turn controlled by two super-master clocks, one at each end of the entire system. The two super-master clocks are designated a mother-daughter relationship and each sub-system uses their signals for checking purposes so that problems of line interference and partial system failure are dealt with adequately.
Patent DE-2331679-A1 (DE)
Title: Electronic typewriter - has keyboard which provides signals for electric, optical or other imprinting
Inventor: RIEDL HEINRICH
IPC: B41J2/385
Filed: 1973-06-22
Abstract: The signals from the keyboard are converted by electronic circuitry into drive pulses for solenoids, heating resistances lamps or optical systems as well as for the feed of the imprinted paper. Similarly, the paper may be of the ordinary type, or light-, heat - or pressure-sensitive paper, depending on the kind of printing system employed. Various type systems are capable of being accommodated.
Patent DE-2338316-A1 (DE)
Title: Gallium phosphide semiconductor epitaxial deposition - in liq. phase, using high temp. treatment when doping with zinc
Inventor: WEYRICH CLAUS DR PHIL
IPC: H01L21/208
Filed: 1973-07-27
Abstract: Liq.-phase epitaxial deposition of a semiconducting layer of GaP on a substrate from a Ga melt satd. with GaP, in which a first epitaxial layer doped with O2 and Te is deposited in a gas atmos. with a specific partial press. (PP) of O2. Zinc is then introduced into the reaction chamber and evapd. in the absence of O2. after which a tempering treatment of 1/2-2 hrs. at 1000-1050 degrees C is carried out in the presence of a PP due to O2, and a second layer of GaP doped with Zn is deposited. Deposition of the second layer can either follow or be combined with the tempering treatment. The pref. PP during the growth of both layers is 90,000-105,000 Pa. Used for red luminescent GaP diodes with higher efficiency.
Patent DE-2340038-A1 (DE)
Title: I.C. engine pressure receiver vessel - absorbs gas from combustion chamber at peak pressures and returns afterwards
Inventor: EISERMANN GUSTAV
IPC: F02B75/36
Filed: 1973-08-08
Abstract: Receiver is designed to smooth out the peak pressures in an internal combustion engine, returning a gases to the combustion chamber after the peaks. It operates at a pressure above that of the engine compression pressure, and can be actuated by mechanical or air spring. Stored pressure from receiver vessel is returned to the combustion chamber at an equalised pressure, which results in reduced noise, compression losses and heating pressures.
Patent DE-2343729-A1 (DE)
Title: Cable support of single metal rod - is bent into square wave in horizontal plane and into sawtooth in vertical plane
Inventor: ZIEGLER HEINRICH
IPC: H02G3/04
Filed: 1973-08-30
Abstract: The cable support consists of a single, continuous metal rod bent into a square wave in the horizontal plane and into a regular sawtooth shape in the vertical plane. The upper apices of the sawtooth are U-shaped to allow the support to be screwed to a wall. The bottom apices of the sawtooth form the parts at right angles to the planes of the sawtooth shape teeth. An alternately shaped support, with the Us in a different plane, enables cables to be supported from the ceiling.
Patent DE-2349109-A1 (DE)
Title: Europium-activated lanthanide oxide red phosphor prodn - by calcining mixed oxalate or nitrate with added flux
Inventor: BOLZ BRUNO
IPC: C09K11/77
Filed: 1973-09-29
Abstract: A red-emitting phosphor for colour television tubes, based on Eu-activated Gd-Y or La oxide is produced by calcination of the mixed oxalate or nitrate to the corresp. oxide phosphor with the addn of a flux comprising a Li salt, e.g. Li2CO3, LiOH or LiF, and an In salt, e.g. InCl3 or In(NO3)3, esp. In(NO3)3, and/or a Ca salt, e.g. CaCO3, CaCl2 or Ca(OH)2, esp. CaCO3. The calcination temp. pref. is 800-1000 degrees C if a Ca cpd. is added and 900-1050 degrees C with an In cpd. Calcination is carried out at relatively low temp. (cf. 1150-1400 degrees C in the conventional method) and excellent, very rapid crystal growth is possible.
Patent DE-2354230-A1 (DE)
Title: Gas cigarette lighter with piezoelectric ignition - has housing part to spring latchable with spring stressed and striker mass spaced from body
Inventor: BEDEN DIETER
IPC: F23Q2/28
Filed: 1973-10-30
Abstract: Gas cigarette lighter with piezoelectric ignition, has a striker driven by a spring against a piezoelectric body. The spring is stressed by a movable housing part, which assumes its resting or closing position when the spring is stressed and the striker mass is spaced from the body. The housing part has a latch for this postion on the housing, and manually releasable for ignition. Pref. the striker mass is displaceably fitted in a container for the spring and the body. The container has guide slots on two opposite sides, connecting the mass via pins to the movable housing part. Design is simplified and function is more reliable.
Patent DE-2357031-A1 (DE)
Title: Mine roadway ring support segment spacer - with centre rod ends in pivotal fork heads pierced for screw bolts
Inventor: SCHROEDERS THEO
IPC: E21D11/28
Filed: 1973-11-15
Abstract: The spacer is for adjoining arch or gin support segments in mine roadways, tunnels, etc., and consists of a centre rod part terminating both ends in pivotal heads with screw bolts. Each head consists of a U-piece whose legs are pierced to accept the bolt and thus lie either side of a sleeve which is welded onto the centre rod at right angles to the rod axis and is coaxially penetrated by the screw bolt. The head should project slightly in width and height over the section of the centre rod part, and the rod should have transverse holes close to both ends, at right angles to the centre axis of the rod. Typically the rod can be formed as an I-piece with the holes in the stay member.
Patent DE-2361741-A1 (DE)
Title: Combined swing and switchback for children - has swing support mounted on rollers running on undulating track
IPC: A63G9/06
Filed: 1973-12-12
Abstract: the swing is suspended from the cross bar which is supported by rollers which run on the inner lower surface of the track. The track is a box section with a continuous slot on its inner vertical side to provide access for the cross bar. The track is mounted on supports to adjust the height of the undulations. The upper surface of the track is provided with a toothed rack which engages the tooth at the end of the arm mounted on an extension of the swing. Each oscillation of the springs causes it to move forwards a distance equal to the pitch of the teeth.
Patent DE-2400509-A1 (DE)
Title: Connector forked spring with solder tags - has flat S-shaped stampings with opposed entries to reduce block size
Inventor: DAUT RUDOLF
IPC: H01R13/11
Filed: 1974-01-07
Abstract: Forked spring with solder tag for terminal block consists of a flat stamping with an S-shape and the prongs shaped to provide at least two entries, from opposite directions. There are extension strips in either direction for use as solder tags. The whole unit is cut out of one piece of flat metal. The prongs are made flexible by thin slits running parallel to the prongs. The forked springs are mounted in rows and tiers in a terminal block and provide a number of test points. By this arrangement both the length and thickness can be kept small relative to the number of contact points provided.
Patent DE-2404449-A1 (DE)
Title: Testing and loading of components and materials - involves simulation of nuclear explosion conditions by generation of shock waves
Inventor: VICTORA HANS
IPC: F42D5/04
Filed: 1974-01-31
Abstract: Shock waves of high energy are generated by sudden release of gas masses under high pressure in a closed container, e.g. a combustion chamber. A combustible gas mixture or a fuel-air mixture is used as an energy source; and the combustible mixture is produced in the energy release chamber by separate injection of compressed air and filling with gas or fuel; pure gaseous or liquid hydrocarbons such as methane, acetylene, natural gas, are used as fuel; or liquid fuels such as benzine may be used. The gas is released by a bursting disc with lines scored on it so that it opens out cleanly into six triangular petals.
Patent DE-2405345-A1 (DE)
Title: Detecting noxious hydrocarbon content of air - as difference between total hydrocarbon and methane contents using two detectors
Inventor: RATFISCH WERNER
IPC: G01N27/62
Filed: 1974-02-05
Abstract: The concn. of hydrocarbons other than methane is a gas, esp. air, is measured using two flame ionisation detectors; a first sample of the gas, contg. all the hydrocarbons, is supplied to the first detector, and a second sample, contg. only methane, is supplied to the second detector, the hydrocarbon contents of both samples being thus measured; the resultant electrical readings are subtracted one from another in a difference amplifier, thus giving the content of hydrocarbons other than methane. Pref., both samples are of equal size. The second sample is pref. first passed over a heated catalyst which removes all the higher hydrocarbons, leaving only the methane on its path towards the second flame detector. The first sample may be correspondingly delayed on its path to the first flame detector. Esp. used for detecting the harmful hydrocarbon content of air, i.e., the hydrocarbons other than methane.
Patent DE-2410547-A1 (DE)
Title: Wood screw drill bit - has a narrow tip and conical shouldered upper part
Inventor: RICKLEFS HARALD
IPC: B27G15/00
Filed: 1974-03-06
Abstract: The drill bit for drilling holes in wood etc. in preparation for wood screws to be inserted has a shape which essentially corresponds to that of the woodscrew, e.g. a conical shape or a stepped shape. The shouldered conical and stepped contacting part ensure that each drilled pilot hole is ready for immediate reception of required screw size. This eliminates several tool bit changes which have to be carried with conventional bits. The drill shank may be of standard size.
Patent DE-2412441-A1 (DE)
Title: Mat for distributing heated and treated air - can aerate baths of beds or serve for gymnastic use
Inventor: FRENKEL WALTER
IPC: F24F3/12
Filed: 1974-03-15
Abstract: A pump draws atmospheric air through a filter a delivers it through a heater to a discharge pipe. A liquid container feeds a nozzle opening into the discharge pipe through which the liquid is evaporated into the air stream. The liquid can be water for humidification or disinfectant for medicinal purposes. A flexible hose is connected to the discharge pipe and leads to a mat which has a large surface perforated with holes through which the treated air escapes. The mat can be placed under a bed to provide ventilation to patients, or placed in a bath to aerate the bath or when put on a floor serve as a hygienic gymnastic mat.
Patent DE-2418347-A1 (DE)
Title: Maltose-contg solns for heart-lung machines - for reduced fluctuations in sugar, insulin and potassium levels
Inventor: MIWA HIDEYUKI
IPC: A61K31/70
Filed: 1974-04-16
Abstract: Filler solns. for heart-lung machines contg. maltose (I) are new. The solns. contain 10% (I). When used during heart operations the (I)-contg. solns. are superior to 5% glucose in respect of fluctuations of sugar, insulin and electrolyte (esp. K) levels. Maltose is not converted into glucose in the blood (only intracellularly) and its metabolism does not depend on insulin.
Patent DE-2420229-A1 (DE)
Title: Injector for flame spraying equipment - with improved vacuum for fuel gas suction
Inventor: HUEHNE ERWIN
IPC: B05B7/14
Filed: 1974-04-26
Abstract: Flame spray differential pressure injector burner with feed channels for fuel gas, oxygen or compressed air and separate injector for powder (e.g. thermite with ferromangan) where components are mixed before leaving the nozzle. An insert, which has the powder mixing channel, has a conical end, fitting into a mating surface of burner housing, leaving a circular conical slot, and a distance piece on the other end with bores for gas injections. The powder channel comes in at an angle. The conical end of the powder mixing channel has helical grooves on its surface. The insert is also provided with a circular groove.
Patent DE-2420234-A1 (DE)
Title: Jet-type engine unit system - has axially and radially adjustable flow regulators and axial or external burner chamber
Inventor: WANDSCHNEIDER OSKAR
IPC: F02C3/14
Filed: 1974-04-26
Abstract: A jet type engine has a rotor which at one end wall has a radially attached elliptically curved turbine bladed wheel and an axially attached elliptically curved bladed turbine wheel which are interconnected by an entrance bucket system connected to the rotor encasing stator housing. Axially adjustable flow regulators and radially adjustable flow regulators adjust the flow diameter between the rotor and the curved turbine wheels respectively. A burner chamber is attached to the stator housing either coaxially with the rotor external to it. A burner provides the exhaust gas medium to operate the jet system.
Patent DE-2429432-A1 (DE)
Title: Leak testing appts. for flexible containers - air injected to predetermined pressure and pressure loss measured
Inventor: SCHNEIDER ROBERT
IPC: G01M3/32
Filed: 1974-06-19
Abstract: Leak testing equipment for flask-type containers, made of pliable material, leaving the production line, consists of three elements, namely a testing head to apply pressure to the flask opening, means of delivering gas to the flask and to a comparison container until a test pressure is reached and a means of measuring the difference in pressure between them after a test period. The head is a hollow body with pressure chamber, membrane, and gas inlet. A bolt is connected at one end with the membrane and at the other with a washer which is pressed against the container.
Patent DE-2437399-A1 (DE)
Title: Terminal clamp for insulated wires has flat metal piece - with flap pressed down onto wire to cut through insulation and bite into conductor
Inventor: HARTMANN KURT
IPC: H01R4/24
Filed: 1974-08-02
Abstract: The terminal clamp, for insulated wires, consists of a flat metal piece (1) with a flap (3) which is bent up out of its plane to leave an elongated hole (8) for the wire (9). The wire is pushed up through this hole and the flap is then pressed back down into the hole on to of the wire such that the end edge of the flap and the end edge of the hole act as knives to cut through the wire insulation (6) to reach the conductor (5) beneath. The distance between the end of the flap and the end of the hole is slightly less than the diameter of the conductor wires so that the latter is held rigidly.
Patent DE-2452879-A1 (DE)
Title: Electrostatic developing appts using magnetic brush - includes non-magnetic cylinder rotated around stationary permanent magnet having developing poles
Inventor: YAMASHITA KEITAROU
IPC: G03G15/09
Filed: 1974-11-07
Abstract: An electrostatic developing apparatus for developing an electrostatic latent image formed on an electrostatic copy paper according to a magnetic brush developing process. In the electrostatic developing apparatus, there is formed a magnetic brush of developer on a non-magnetic cylinder between the non-magnetic cylinder and an electrostatic copy paper. The non-magnetic cylinder is rotated around the outer periphery of a stationary permanent magnet having a number of developing magnetic poles, so that the electrostatic copy paper is slidingly rubbed with the magnetic brush to provide a visible image for the electrostatic latent image.
Patent DE-2453733-A1 (DE)
Title: Stationary fuel tank arrangement - fitted with stowage housing having an upper opening with inlet channel and return pipe
Inventor: JANSSEN UDO DIPL ING
IPC: B60K15/077
Filed: 1974-11-13
Abstract: Fuel tank arrangement fitted with a stowage housing having an upper opening and an inlet channel to connect with the main tank volume. There is a suction pipe which leads to a point close to the bottom of the bottom of the stowage housing and a return pipe which leads into the inlet channel for use with IC engine. The inlet channel is a pipe (5) the free end of which in the tank (1) encloses the stowage house end (7') of the return pipe (7) to form a jet pump (7, 8) with clearance close to the bottom of the tank (1). The end (7') of the return pipe is narrowed like a nozzle. The pipe (5) narrows in the direction of the flow behind the jet pump (7', 8) and then widens in the manner of a diffusor (10).
Patent DE-2460007-A1 (DE)
Title: Cabinet for holding data storage media - has internal sensing device triggering carbon dioxide fire extinguishers
IPC: A62C37/40
Filed: 1974-12-19
Abstract: The cabinet for accommodating valuable documents such as files, microfilm and data storage tapes has an internal arrangement protecting the contents against fire. The cabinet ensures ready access to the documents used, for example, daily. The cabinet is closed on all sides except for a front opening for operation purposes. The cabinet accommodates a fire signalling arrangement as well as carbon dioxide gas fire extinguishers initiated by the fire signalling device. Automatic locking arrangements are provided for ttight closing of the operating and access opening of the cabinet. The fire extinguishing process neither damages nor destroys the contents.
Patent DE-2508700-A1 (DE)
Title: Mechanism for diverting paper sheet from conveyor - uses blow nozzle between reversing roller and wedge shaped guide element
Inventor: AYKUT KURT DIPL ING
IPC: B65H29/58
Filed: 1975-02-28
Abstract: The arrangement is intended for use on a transport mechanism in which sheets of paper, board or the like are conveyed between upper and lower conveyor belts. A stationary, wedge-shaped guide element is arranged downstream of a reversing roller of the lower belt, the upper face of the element being parallel to the main track whilst its lower guide face is part of the diverting track. For the region between the reversing roller and the element, a blow nozzle is provided, capable of acting on the forward end of the sheet to be separated. A sensor may be provided to activate the nozzle.
Patent DE-2513308-A1 (DE)
Title: Gramophone record - having an outer periphery of different colour to aid placement of the pick up onto the run in grooves
Inventor: BURMESTER KURT FRIEDRICH
IPC: G11B23/38
Filed: 1975-03-26
Abstract: On a gramophone record, the outer periphery contg. the run-in grooves for the programme proper is made of a substrate having a different colour (to that of the latter). This colour demarcation aids manual placing of the tone arm (pick up) on the record and prevents damage with semi-automatic record players.
Patent DE-2514841-A1 (DE)
Title: Up and over garage door - has pivot lever system upper slide track and spring weight balancing and energy storage
Inventor: GAIL JOSEF
IPC: E05D15/42
Filed: 1975-04-04
Abstract: An up and over garage door housing a pivoting flap which has side fitted pivoting levers which are mounted on the door frame, and which can slide along a track in the upper pivot region, having springs attached to the smaller pivot lever arms to act as weight balances and energy storage devices, has the energy storages (7) constructed from one or more compression springs (8 etc) with a guide shaft (9, 13), such that one end of the shaft (11) is attached to the frame and the other end (14) engages the lifting lever arm (36) of the pivot lever (3).