baber/WOPTO huggingface dataset:
Patent DE-1955206-A1 (DE)
Title: Fine grain rubber materials
Inventor: SONNENFELD HANS-HEINRICH
IPC: B29B17/00
Filed: 1969-11-03
Abstract: The broken rubber-type materials are fed into a cold air stream, where temps are reduced to -190 degrees C and projected against beating plates. The material breaks up still further, is ground and passed to a cyclone for extraction.
Patent DE-1966040-A1 (DE)
Title: Laminate comprising a ceramic layer, a ptfe - coating and a bonding layer of a solder glass
Inventor: H MILLS WALTER
IPC: C03C10/00
Filed: 1969-12-16
Abstract: Laminate comprising a ceramic layer, a PTFE coating and a bonding layer of a solder glass. Solder glass consists of 13-23 wt.% PbO, 4-11% B2O3, 4-6% LiO2, 14-19% Al2O3 and 39-50% SiO2. A nucleating agent may also be included. When crystallised the compositions have coefficients of thermal expansion in the range of about -5 to + 30x10-7/degrees C and contain lithia-alumina-silicate crystals (beta spodumene or beta-eucryptite) as the primary type, with no lead silicate or zinc silicate crystals present.
Patent DE-2002483-A1 (DE)
Title: Sewage sludge combustion furnace
Inventor: HOLSTE DIETER
IPC: F23G7/00
Filed: 1970-01-21
Abstract: Furnace for the combustion of sewage sludge comprises a horizontal revolving barrel into which is fitted coaxially a helical pathway for the sludge. The barrel is fitted with a compartment wheel feeder for the sludge, the movement of which is synchronised with the movement of the barrel. A burner is fitted to the front face of the barrel protruding into it. Also provided is an ash removal device fitted to one of the end faces of the barrel protruding into it. Air inlet openings are connected with the helical pathway. The furnace is compact and thermally most effective.
Patent DE-2021695-A1 (DE)
Title: Winter or knee -sock turning appts with turning tube - disposed below the turning
Inventor: HOFFMANN TIVADAR
IPC: D04B15/92
Filed: 1970-05-04
Abstract: Sock turning appts as claimed in 1927798 is modified for turning of heavy socks such as winter or knee-length socks by providing the turning tube disposed below the turning nozzle with a reversibly driven endless belt assembly.
Patent DE-2032074-A1 (DE)
Title: N-(2,2-dichloro-1-hydroxy)-fluoroacetamides - insecticides,acaricides
IPC: A01N37/26
Filed: 1970-06-29
Abstract: Cpds. of formula: FCH2CONHCH(OH)CCl2R (where R = H, Br or CH3CHBr-), are insecticides and acaricides and also fungicides, bactericides, herbicides and rodent repellants. They are prepd. by reacting FCH2CONH2 with R-CCl2CHO.
Patent DE-2055030-A1 (DE)
Title: Cocoa aroma extraction - from cocoa powder or press-cake by two-step solvent extraction
IPC: A23G1/56
Filed: 1970-11-09
Abstract: Cocoa extract, useful for flavouring food, directly or as a soln. in water, alcohol, fat, fat/water emulsions and/or other non-toxic solvents, or absorbed on solid carriers, is obtd. free from fats, e.g. cocoa butter, by first exhaustively extracting cocoa powder or press-cake with a non-polar organic solvent, pref. opt. linear hydrocarbons and/or low boiling halohydrocarbons, and then dissolving out aroma-yielding components from residue of first extraction, using a polar organic solvent, solvent mixt. and/or aq. organic solvent, pref. alcohols, and/or esters, esp. MeOH or EtOH, partic. 40-80 (50-65) wt.% aq. MeOH or EtOH.
Patent DE-2061380-A1 (DE)
IPC: E05D15/52
Filed: 1970-12-14
Abstract: The housing for accommodating the actuating drive in the door or window panel is produced by the simplest tools with minimum possible weakening of the frame profile at the panel corners. The opening for inserting the actuating mechanism is formed by a circular bore arranged on the panel face in the neighbourhood of the corner. The circular hole is arranged close to the edge groove so that the omega shaped housing of the pinion can be inserted in the opening. The omega shaped housing of the actuating pinion is connected by screws and the connecting strap to the grooves on the edges at the corners. The pinion actuates the rack which in turn actuates the linkage used for closing and opening the panel.
Patent DE-2062905-A1 (DE)
Title: Electric field dispersion powder dispensing method - employs alternating dispersing field through which a conveyor gas is passed
IPC: C23C4/12
Filed: 1970-12-21
Abstract: The powder, in doses from a storage container, is dispersed by an electric field set up between two electrodes and transported by a slow gas stream passing through the turbulent region created by the field at 1 l/min. The field is pref. alternating with field strength 2 kV/cm and frequency 50 Hz. Used for plasma spray coating of contact materials with fine grain refractory powders such as Rh, Mo having a particle size of ca. 3 mu which have poor flow characteristics.
Patent DE-2064527-A1 (DE)
Title: Washing gas contg foaming substances - using finely atmoised liquid
IPC: B01D47/06
Filed: 1970-12-30
Abstract: Gas-washing process, esp. for industrial gases contg. foam-producing substances, uses aq. wash liquid, and wash liquid is fed to an atomising disc as in DT-1, 519, 676, which sprays it as 10-200(50-150) mu droplets into an empty wash tower. The droplets flow downwards with the gas for contact period >2 (pref. >5) secs., finally settling as a liquid layer as the gas speed diminishes. The process is esp. suitable for washing waste gas from catalytic oxydation of naphthalene after cooling to 40-70 degrees C.
Patent DE-2121574-A1 (DE)
Title: Cellular silicate based insulating material - contg crystalline and soluble silicate, made by heating
IPC: C04B35/16
Filed: 1971-05-03
Abstract: Cellular silicate based acoustic and thermal insulating material comprises alkali silicates mixed with ground crystalline silicate in a wt. ratio of 2-6:1 together with 15% water (w.r.t. the dry material). The mixt. is heated to 140-500 degrees C at const. vol. and without passing into the vapour phase to develop the reaction prod. The prod. has equal porosity with regularly formed cells, to prior art material, but increased compressive strength acoustic insulation properties and fire resistance. It can be machined and cut readily and will accept nails and screws. It can be readily bonded with mortar, lime, plaster cement and concrete.
Patent DE-2124931-A1 (DE)
Title: Plastic film blister pack - with sealing strip covering the opening having non-adhesive gripping edge
IPC: B65D75/36
Filed: 1971-05-19
Abstract: The pack with a flat base and vacuum drawn film cover, ie. for cigarettes, has a sealing strip covering the hinged flap opening slit with a free edge running lengthwise along it. Pref. the strip is coated with an adhesive except for the free edge.
Patent DE-2143146-A1 (DE)
Title: Continuous casting roll guide - with chain mounted upper rolls
Inventor: BOLLIG GEORG DIPL ING
IPC: B22D11/12
Filed: 1971-08-28
Abstract: Drive and straightening installation for a vertical continuous casting plant, in which the cast section is deflected into a horizontal direction, has upper rolls, the trunnions of which are supported in bearings fitted in pairs into chain links stretched out forming a chain between the housings. The method of support for the upper rolls permits their raising by a considerable amount thereby facilitating the removal of cold end sections and fitting of starting sections.
Patent DE-2213140-A1 (DE)
Title: Polishing cloth - impregnated with hydrophobic polishing agent
Inventor: SCHIEDERER JOSEF
IPC: A47L13/17
Filed: 1972-03-17
Abstract: Polishing cloth is impregnated with a hydrophobic polishing agent. The cloth consists of cotton and is impregnated with 150-250 g/m2 polishing agent, or of terry cloth and is impregnated with 200-300 g/m2 polishing agent. The polishing agent is a silicone oil with a viscosity of 5-30,000 esp 50-350 cst. The silicone oil is a dimethylpolysiloxane or methylphenylpolysiloxane. The polishing cloth is produced by dipping the cloth in a soln of 5-20 esp. 7-12 pts. wt. polishing agent in a solvent, and drying the impregnated cloth by heating in the air at 40-80 degrees C. The solvent is benzene, petroleum ether, pentane, xylene, cyclohexanol, ethanol etc. Easy to use and gives uniform application of the polishing agent.
Patent DE-2214917-A1 (DE)
Title: Partial metal foil removal from capacitor foil - by passing current across wetted printing roller
Inventor: KESSLER HARTMUT DIPL ING
IPC: H01G4/255
Filed: 1972-03-27
Abstract: Defined zones of the metal coating are removed from a capacitor foil by contacting the foil with the raised parts of a printing roller with raised parts which are kept wetted with water. One pole of a voltage source is applied to the coating and the other to the printing roller. The resulting current destroys the coating in the contacted areas.
Patent DE-2244929-A1 (DE)
Title: Laboratory baking oven - for investigating characteristics of grains
Inventor: VARGA JANOS
IPC: A21B3/04
Filed: 1972-09-13
Abstract: A cylindrical, insulated casing has a hatch in its vertical cylindrical wall closed by a double walled transparent door and has plane top and bottom hot plates thermostatically controlled. Sufficient water to produce saturated steam in the oven chamber is injected automatically on to the bottom hot plate, from an integral subsystem, when the door is closed. The samples of grain/flour are placed on segments of a turntable driven by a sealed shaft through the floor using a stepping motor positioned by a selector switch for rapid loading, unloading and visual inspection.
Patent DE-2263982-A1 (DE)
Title: Rigid woodworking sheet-metal bench plate - with edge-parallel shaped sections on downwards-bent border strip
Inventor: SUSEMIHL ROLF
IPC: B25H1/02
Filed: 1972-12-29
Abstract: Plate is for use with circular saws, planing machines, band-saws and other woodcutting machines, combining robust characteristics and stability with light weight. The border strip section may be stepped outwards and downwards from the plate edge and the strips own bottom edge may be rolled inwards. There may be spaced sections for attachment to components with the strip bent straight downwards at these points. The border strip section may run continuously round the rounded corners of the plate, which may have holes at diametrally opposite corners with edges drawn downwards. Sufficient edge reinforcement is provided with very thin sheeting.
Patent DE-2264569-A1 (DE)
Title: Turbocompressor for explosive gases with PTFE seal - labyrinth gland in shaft seal has PTFE bush to reduce heat prodn
Inventor: FRIESE WILHELM
IPC: F04D29/10
Filed: 1972-09-07
Abstract: A labyrinth seal for turbocompressors comprises a bush of PTFE or other plastics having similar properties. The bush comprises rings machined from the solid and is flanked by additional steel rings. In a typical arrangement, a PTFE bush with high and low rings is fitted inside the outer collar of the seal.
Patent DE-2310749-A1 (DE)
Title: Removal of hydrogen fluoride from organo fluorines - by absorption in active aluminium oxide to give a non-corrosive prod
Inventor: MEUSSDOERFFER JOHANN-NIKOLAUS
IPC: C07C309/80
Filed: 1973-03-03
Abstract: HF is removed from organic fluorine cpds. e.g. the prod. of electrochemical fluoration of organics in anhyd HF, by passing them in gaseous phase over active Al2O3 at 20-250 degrees C prepd. by calcination of alumina hydrate, and having water content 2-15% pref. 3-10%. BET specific surface of >=250 m2g-1 and 10% pref. 15%, absorption capacity of water from air of 50% R.H. The process is less corrosive than liq. absorption due to the absence of water vapour. The reaction prod. with Al2O3 can be converted to pure AlF3.
Patent DE-2316916-A1 (DE)
Title: Anti-leukaemic furano-phenanthrene triepoxides - extd. from Tripterygium wilfordii using alcohol, evapn. partition and chromatography
Inventor: KUPCHAN S MORRIS
IPC: C07D493/22
Filed: 1973-04-04
Abstract: Title cpds. are of formula (I) (where R is H or OH) and have in vivo antitumour activity against L-1210 and P-388 leukaemia in mice and human KB-cells. A cpd. (II) where R = H and asterisked OH is replaced by oxo is also new. All 3 cpds. are prepd. by extn. of Tripterygium wilfordii with an alcohol, evapn. partition of the residue between water and an ester and then fractional chromatography of the ester-fraction residue on silica gel.
Patent DE-2339775-A1 (DE)
Title: TV aerial distributor of pwb type - uses transformation strip-line, step extended into distribution head and tuning disc
Inventor: SCHLENTNER MANFRED
IPC: H01P5/12
Filed: 1973-08-06
Abstract: The TV aerial distributor has a metallic base plate with distribution lines in uniform distance from it by means of an insulating plate in such a way that the distribution lines (strips) are on that side of the insulating plate which is turned away from the base plate. The distributor can be a transformation line which extends by steps into a distribution head. In at least one of the steps a tuning element is used which consists of a plane disk parallel to the distributor strip line. A threaded spindel permits transposition of the disk in rectangular direction to the strip line. The spindel is mounted on the base plate and may be of metal, ferrite or insulating material. A screening cap may be placed over the distribution lines in a distance which is greater than the distance of the distribution line from the base plate. Ease of manufacture with low costs results.
Patent DE-2345933-A1 (DE)
Title: Gas-tight lead-through for adjusting valve gear shaft - has direction-changing mechanism and folding bellows
Inventor: JACKES ROBERT
IPC: F16J15/52
Filed: 1973-09-12
Abstract: In the region where it is to be led through the wall, the rotating shaft is divided into two parts and replaced by an axially movable rod joined to these two parts by a direction changing mechanism which changes the rotational motion into an axial one. This rod is connected to a corrugated bellows whose other end is fixed to the wall through which the shaft is being led. Both these connections can easily be made gas tight by welding, soldering, etc. The lead-through is for adjusting gear for activating valves, etc., which are inaccessible because of heat or safety considerations.
Patent DE-2356662-A1 (DE)
Title: Cleaning and greasing device for compressed air tools - is robust liquid container with all branch pipes housed inside
Inventor: VOX ANTON J
IPC: F16K11/08
Filed: 1973-11-13
Abstract: A transportable appts. for lubricating, cleaning and/or defrosting compressed air consumer units, esp. compressed air tools, comprises a liquid-contg. vessel with the compressed air pipe passing through it, so that the compressed air branch line opening into the vessel above the liquid level and the compressed liquid discharge line leading out of the vessel and back into the main compressed air line are all contained within the pressure casing. The vessel is pref. an upright cylinder with the compressed air line passing diametrally through it horizontally a little distance above the bottom and with the air branch line rising as a standpipe from this to the top of the vessel, where it enters a valve housing passing through its shut-off valve and so descending again to terminate with an open end above the liquid surface. Similarly, the liquid discharge line rises as a stand-pipe from a submerged level to the same valve housing where its shut-off and metering valve is located and then passes down again to rejoin the main, horizontal compressed air line. Thus, both the valves are contained in a robust housing, esp. with a single actuating handle, so interlocked that the compressed air branch line valve can only be opened when the other valve is opened. The upper part of the vessel pref. has a carrying handle welded to it and extending above the valve chest. Both ends of the main, transverse compressed air line may be fitted with a Y-branch with shut-off valves.
Patent DE-2356782-A1 (DE)
Title: Ventilation system for ridge roofs - incorporates ventilating profile under overlapping roof ridge cover profile
Inventor: HELLING WILHELM
IPC: E04D13/17
Filed: 1973-11-14
Abstract: The ventilating system is used for eliminating spent air through the roof ridge, but the ridge construction ensures that driven rain or snow cannot enter the ventilating gaps. The roof ridge covering is an inverted 'U' section curved profile which overlaps the edges of straight, sloping roof covering plates. A labyrinth profile is placed directly between the overlapping regions of the curved profile and the plates to prevent penetration of water. A seal is placed between the profile underside and the plate edge. The labyrinth profile has inlet openings, outlet openings and internal, staggered ribs for deflecting the flow path.
Patent DE-2357273-A1 (DE)
Title: Monitor for DC machine - has toroidal monitoring yoke encircling two supply lines carrying currents in opp. directions
Inventor: BAUERSFELD EMIL
IPC: H02H7/08
Filed: 1973-11-13
Abstract: The monitor, for monitoring the current supplied to a D.C. machine rotor windings, has the supply current flowing in the same direction to every other brush terminal and in the opposite direction to the brush terminals in between. The brushes connect to the commutator segments which are in turn connected via commutator risers to the armature windings. The two supply lines, with currents flowing in opposite directions through them, pass through a toroidal yoke with an output coil wound around it. The coil is connected to an instrument that measures the yoke's flux. As long as the supply currents are equal, no reading is recorded.
Patent DE-2357319-A1 (DE)
Title: Sintered phosphorus nitride-silica doping agent - with long duration diffusion stability for semiconductors
Inventor: YAMASHITA MITSUO
IPC: C30B31/16
Filed: 1973-11-16
Abstract: The advantages of the invention are: (1) uniform phosphorus nitride I wafers can be readily obtained in large amts.; (2) by adjusting the wafer thickness, long-duration-stabilized diffusion is possible; and (3) the inefficient gas-phase crystal growth of I is no longer required. I 80 parts was mixed with white carbon binder 20 parts and hot pressed for 30 min. at 850 degrees in a graphite mould (45 mm diam) in a N atm. The product was shaped into discs (45 x 1.2 mm placed into a diffusion furnace together with Si wafers and heated for 30 min. at 800 degrees in a N atm. The surface-doped Si wafers were transferred to a 2nd furnace and heated at 1200 degrees for 30 min. to allow the P to diffuse into the bulk of the wafer to give n-type Si. The surface resistance of the doped wafer was 2.5 plus-or-minus 0.1 OMEGA/box revealing uniform doping. The doping wafer was not damaged or deformed during the doping operation.
Patent DE-2359506-A1 (DE)
Title: Dental instrument holder - has at least two parts releasably connected by quick acting coupling
Inventor: EIBOFNER EUGEN
IPC: A61C1/05
Filed: 1973-11-29
Abstract: Dental tool holder comprises at least two parts releasably connected by a coupling. To each of the two coupling members which are pref. screw coupling members, can be connected an intermediate coupling element. The two intermediate coupling elements can be coupled together to form a quick-acting intermediate coupling, e-g. of the bayonet type. Wear and tear on the screw coupling is reduced. The instrument holder can be driven by air, a small electric motor or mechanically by a driving shaft laid in the inside of the holder. For the former drive form a turbine is provided in the hollow shaft.
Patent DE-2401233-A1 (DE)
Title: Roof guttering conical pipe water run-off - with radially incised curved pipe section adaptable for any slope
IPC: E04D13/08
Filed: 1974-01-11
Abstract: The conical pipe, attachable to the underside of the guttering, has two holding strips, and as in 1509065, is connected, at the end away from the guttering, to a pipe section with a short joint stub for the downpipe, the two holder strips being a length adapted to the slope of the conical pipe. The pipe section is arched, with impressed seams or other marks pointing towards the curvature centre, the whole curve being of a length which permits a transition from conical pipe to downpipe at virtually any angle of inclination of the former. The pipe section can be made of the same material as the conical pipe, with the same degree of mechanical resistance.
Patent DE-2407629-A1 (DE)
Title: High efficiency LF amplifier - switching amplifier designed as self-sustained oscillating control cct.
Inventor: KALLINA GUENTER DIPL ING
IPC: H03F3/217
Filed: 1974-02-18
Abstract: The self-oscillating control circuit consists of an electronic switch and a linear division system. The electronic switch consists of cascade connected open differential amplifier, dead zone and two power switches. The dead zone consists of an n-p-n and a p-n-p transistor. The dead zone transistors' emitters are at frame potential, and their bases are controlled by the differential amplifier. A diode, or a Zener diode, is inserted between their emitters and frame. The division system consists of three first order delay lines. Even at high output the nonlinear harmonic distortion factor is reduced, theoretically to zero.
Patent DE-2410342-A1 (DE)
Title: Continuously variable transmission for vehicles - with high torque transfer at low rotational speed by governed hydraulic system
Inventor: WIDAK JOHANN
IPC: F16H47/00
Filed: 1974-03-05
Abstract: At least one planetary gear is fitted between the input and output shafts, and at least one hydraulic pump is connected to an element of the planetary gear and via passages and adjustable valves to a hydraulic drive unit, e.g. a turbine or a hydraulic motor. This is connected directly or indirectly to the output shaft, and operates under the influence of a centrifugal governor. If a pair of planetary gears is fitted, one hydraulic pump may be driven by both gears, or two pumps may be driven in parallel.
Patent DE-2411473-A1 (DE)
Title: Single-cylinder piston compressor - has slide bearing for crankpin and two-bush single slide bearing for crankshaft
Inventor: DAHLMEIER KLAUS
IPC: F04B39/00
Filed: 1974-03-11
Abstract: The compressor is particularly intended for supplying compressed air for vehicle air brakes and is of the type comprising a housing with single bearing for the cantilevered crankshaft which has an overhung crankpin for the big end bearing of the connection rod. Both crankpin and crankshaft bearings are plain bearings, the crankshaft bearing consisting of two separate bushes separated into halves. The two bushes may be identical and may in turn be identical to the crankpin bearing bush. The gap may be connected with an oil supply and a duct may be provided in the crank to supply oil from the crankshaft to the crankpin bearing.
Patent DE-2413001-A1 (DE)
Title: Point grinder for spiral drills - has drill fixture movable parallel and normal to grinding wheel axis
Inventor: HAUG MAX
IPC: B24B3/32
Filed: 1974-03-18
Abstract: The grinding apparatus has a block with two grinding wheels, with either one engaged with the drill to be ground. The drill holding fixture can be swung about its centreline and is mounted on a pair of cross slides which can move parallel and normal to the wheel axis. The holding fixture contains a shaft, at the end of which a drill holding block is mounted. The drill holding block can slide over a segment to adjust the angle of the drill relative to the grinding wheel. A quick release handle determines the angle of the main cutting edge of the drill relative to the grinding wheel. The mounting block for the handle can be swung relative to the drill holding block against the force of a spring.