baber/WOPTO huggingface dataset:
Patent DE-1939078-A1 (DE)
Title: Device for supplying dry steam to nozzles assisting in - drying wet paper webs
Inventor: DOUGLAS SHELOR CLIFFORD
IPC: D21G7/00
Filed: 1969-07-31
Abstract: Dry steam is supplied by passing steam from a first chamber which is connected by a valve to a second chamber provided with capillary tubes which interconnects the second chamber with atmosphere, maintaining a pressure difference of approx. 0.7 as the steam is passing through the chambers and expanding the steam passing from the first chamber into the second chamber to atm. conditions. Passage of steam from the first chamber into the second chamber and expansion of the steam results in removal of condensate from the first chamber which supplies nozzles with dry steam, the nozzles being supplied intermittently.
Patent DE-1941262-A1 (DE)
Title: Nacreous acrylic polymers
Inventor: RADULESCU TUDOR
IPC: C08F20/12
Filed: 1969-08-13
Abstract: The nacreous affect is achieved by directing the acrylic polymer mass together with a plasticiser, during polymerisation in the form of a liquid jet, towards the polymerisation cell. The mass also contains material(s) contng. optically active crystals. The plasticiser may be dioctyl phthalate, dioctyl sebacate or ethylhexylphthalate. The acrylic polymer may be PMMA. The optically active crystals contng. material is suitably a PMMA gel. Polymerisation is effected in two steps: (1) prepolymerisation in a stirred container; (2) polymerisation in the cell.
Patent DE-1955340-A1 (DE)
Title: Production of pistons for internal combust- - ion engines
Inventor: ROI HOWARD MICHAEL
IPC: B23K15/00
Filed: 1969-11-04
Abstract: The component parts of the piston are produced by injection or pressure casting and joined by electron beam welding to form the piston.
Patent DE-1961498-A1 (DE)
Title: Binder for mouldable glass fibre material
Inventor: PETER STALEGO JOSEPH
IPC: C08L61/00
Filed: 1969-12-08
Abstract: Phenolic binder for glass fibres contains 40-91% hardenable phenol-formaldehyde condensation product, 4-40% urea and 5-45% dicyandiamide, so that when dehydrated it is stable at least one month at 38 degrees C. Dicyandizmide increases viscosity, reduces stickiness. Mouldable material contng. 5-45% binder has apparent density 0.008-0.48 g/cm3.
Patent DE-2013007-A1 (DE)
Title: Wet dust removal from gas
IPC: B01D47/02
Filed: 1970-03-19
Abstract: Wet dust removal from gas Appts comprises vertical cylinder, divided by internal conical floor and possessing hopper bottom for dust collection. Gas spindle down in lower chamber, receives water sprays and loses most of dust. It then flows up a central pipe to the upper chamber. Here spiral guide vanes, guiding it outwards, are capped by a central plate, so that the gas impacts violently against the vessel wall, reversing its flow inwards again above the capping plate before leaving the chamber.
Patent DE-2033522-A1 (DE)
Title: Breaking oil and fat aq emulsions - using anion active neutral agent
IPC: B01D17/04
Filed: 1970-07-07
Abstract: Agent prepared by multi-step reaction between C, Al, HCl, Mg, Fe, Ca(OH)2, and a surfactant is used for removing emulsified oils and fats or oily and fatty materials from waste waters with use of anion active and/or non-ionogenic demulsifiers. After room temps. treatment the phases are separated into clear- and waste contg. phase, which can be removed by sedimentation, flotation, centrifuging or filtering. Agent is useful in metal working industry, e.g. cutting rolling, extrusion; treating fatty waste waters from cosmetic industry; prepurification of cyanide degreasing baths before decontamination (no HCN is formed).
Patent DE-2102905-A1 (DE)
Title: Extruded fibre-reinforced plastic tubes - of wound construction and of any length
IPC: B29C53/60
Filed: 1971-01-22
Abstract: Production of a hollow extruded body (tube) of any desired length by advancing a resin pre-impregnated fibre reinforcement, e.g. a glass filament roving, slightly twisted jute-, sisal- or paper-cord, wound from a winding mandrel onto a support mandrel in an annular gap (tube chamber) open at one end for forming the tube, and advanced, compressed and hardened to form the finished tube.
Patent DE-2116970-A1 (DE)
Title: Direct cooled burner nozzle holder - esp for plasma burners using soft metal seal
IPC: H05H1/28
Filed: 1971-04-07
Abstract: A ring of soft metal is inlaid into the rear face of a massive flange around the shank of the burner insert, near its forward end and seats against the rim of the holde which is knife edged. An additional conventional "O" ring is placed between the rear shank of the insert and the bore of the holder.
Patent DE-2121838-A1 (DE)
Title: Plastic drainage pipe - with the water inlet slits or bores positioned in low stress areas
IPC: E02B11/00
Filed: 1971-05-04
Abstract: The drainage slits in the pipe circumference are arranged so that when the pipe is in place underground they are positioned to receive the lowest stress from the external pressure. Pref. the drainage slits are arranged in the low stress zones around the pipe crown.
Patent DE-2137271-A1 (DE)
Title: Low flammability micaceous materials - from non-expanded fillers with plastics binders
Inventor: AALRUST PER DIPL CHEM
IPC: C08K3/34
Filed: 1971-07-26
Abstract: Non-expanded micaceous fillers (pref. vermiculite) are added to plastics binders to produce materials of low flammability which do not drop on exposure to flame and may or may not foam. Composns. pref. contain 2 - 50 (5 - 20) wt.% chlorinated or chlorine-contg. polymer and 2 - 50 (5 - 20) wt.% non-expanded vermiculite based on the total plastics content. Suitable plastics are epoxy resins, polyolefines and polyamides, or mixts., and suitable chlorinated polymers are PVC, chlorinated polypropylene or chlorinated rubber. Blowing or cross-linking agents may be included. The materials are suitables as sound and heat insulations in the form of paints, linings or coatings.
Patent DE-2203025-A1 (DE)
Title: Electric contacts for very low potentials and currents - made from gold alloyed with small amts of heavy metals pref nickel
Inventor: KLEIN DIETER DIPL-ING
IPC: H01H1/023
Filed: 1972-01-22
Abstract: Contact materials consisting of Au alloyed pref. with 2% of Ni have satisfactory strength (>=90 kg/mm2) and abrasion resistance; the contact resistance is low and constant; there is no cold-welding or segregation tendency.
Patent DE-2212909-A1 (DE)
Title: Optimisation of the activity of influenza virus/alumina - adsorbate vaccines - by photometric virus strain selection and calc
Inventor: DRESCHER JOACHIM PROF DR
IPC: A61K39/39
Filed: 1972-03-17
Abstract: High-purity, optimum-activity influenza virus/alumina adsorbate vaccines are produced by: (a) selecting the virus strain to be used by comparing the reactivities of its antisera with intact and ether treated homologous and heterologous viruses by the photometric ACU method; (b) incorporating in the vaccine the strain whose antibodies give a reactivity quotient R III of >0.3 with the virus strain expected as the pathogen; (c) purifying the virus by adsorption on delta-alumina and replacement of the aq. phase by a suitable suspension medium; (d) calculating the loading of the alumina with virus that will give the optimum activity on the basis of the Freundlich adsorption isotherm; and (e) mixing the virus with the alumina in the appropriate concn.
Patent DE-2225841-A1 (DE)
Inventor: MALEY GERALD ADRIAN
IPC: G06F11/07
Filed: 1972-05-27
Abstract: A memory correcting system in accordance with this disclosure is an integral part of a digital electronic computer having a monolithic memory. The memory correcting system detects, records and analyzes errors occurring during normal operation of the computer. Also, the memory correcting system systematically addresses the monolithic memory on a cycle stealing basis monitoring the general health of the monolithic memory. The systematic reading and writing of all monolithic memory locations prevents the accumulating effects of random errors. By detecting single errors as rapidly as possible, the probability of acquiring additional errors that are above the correcting capabilities of the redundancy code are avoided.
Patent DE-2229625-A1 (DE)
Title: Travelling scraper unit - with direction of travel reversal control
Inventor: MARZLUF WERNER
IPC: B01D21/04
Filed: 1972-06-19
Abstract: In a scrapper appts. of the type in which a travelling scraper unit can move reciprocably on a track along a sedimentation tank on which switch elements are provided, reversing the drive on reaching the two end posns., the improvement whereby the drive contains >=1 rotating field magnet stops being provided at the ends of the track for the travelling scraper unit against which it runs with the driven torque remaining unaltered and the reversal of the direction of travel being temporarily delayed by a control assembly after the scraper unit has run up against the stops. Specif., the control magnitude for the reversal of the direction of travel is derived from a measuring element which responds to the changed in a characteristic of the rotation field magnet when the stationary posn. is reached.
Patent DE-2232962-A1 (DE)
Title: Centrifugal sintered PTFE moulding - esp cylindrical bushings or tubes
IPC: B29C43/02
Filed: 1972-07-05
Abstract: The cavity of the cylindrical mould tool is first filled with the moulding powder and then a lining of resilient material placed over the powder. The residual central cavity which is fully closed at the base and partially so at the top, then has poured into it a quantity of ballat material, either metal filings, liquid metal or molten metal so that when the centrifuge spins, the ballast exerts additional pressure, through the resilient sleeve, on the moulding to be sintered.
Patent DE-2237214-A1 (DE)
Title: Reactive polymeric gel - based on acrylamide and methylene - bisacrylamide
Inventor: FUKUHARA KAY T
IPC: C08F8/00
Filed: 1972-07-28
Abstract: Prods. are of type A.B (where A is a water-sol. or water-miscible monomer having a C=C (ethylenic) bond, e.g. acrylamide, and B is a water-sol. and water-miscible monomeric crosslinking agent having >=2 cross-linkable end gps., e.g. methylenebisacrylamide). A.B are copolymd. and/or a graft copolymer is added onto A.B so that there are reactive sites present at the gel. Prods. are used in mfr. of ion exchange resins, drying agents, in substn., fractionation reactions, immunological processes, as redox and fluorescent polymers, in isolating, purifying and detecting of metal ions.
Patent DE-2258560-A1 (DE)
Title: Whipped cream prepn. - using a compressed gas in a pressure vessel
Inventor: KNOPF KARL HORST
IPC: A01J13/00
Filed: 1972-11-30
Abstract: Appts. for the prepn. of whipped cream by the use of compressed gas, such as nitrous oxide, consisting of a pressure vessel acting as the cream container, and is provided with a nitrous oxide inlet controlled by a valve also serving as the whipped cream outlet, improved by providing an intermediate piece to permit the cartridge holder to be connected to the valve spindle and the cartridge valve to be opened by pushing this up in known manner so as to connect the interior of the cartridge with the longitudinal bore in the valve spindle, but can be exchanged for a nozzle for the discharge of the whipped cream from its outlet.
Patent DE-2259500-A1 (DE)
Title: Continuous alkylation of benzene with olefins - using aluminium chloride catalyst activated by treatment with benzene
Inventor: MOCEAROV VLADIMIR DIPL ING
IPC: C07C2/68
Filed: 1972-12-05
Abstract: In prepn. of alkyl benzenes by AlCl3 catalysed alkylation of benzene with olefins, alkylated catalyst complexes are continuously treated with benzene outside the alkylation vessel, in alkyl:phenyl ratio 0.2-0.6 at 60-100 degrees 1-3 atmos. for 15-60 mins. The catalyst, which becomes deactivated by contamination with polyalkylates and resins, may be continuously reactivated without increasing temp. and press. Treatment can be effected in a normal liq-liq. continuous transalkylation unit, and does not decrease productivity.
Patent DE-2330301-A1 (DE)
Title: Tensile stress relief for terminal wire in automatic windings - by bending terminals from axis parallel position towards flange radial outward
Inventor: BRUCH HELMUT
IPC: H01F41/10
Filed: 1973-06-14
Abstract: The relay coils have a terminal flange with terminals for winding end connection. The terminals are such that with the wire ends of the winding fixed to them, they are bent towards the flange surface so that during the bending the distance rectangular from the coil axis to the wire connection point on the terminal steadily increases. The tension of the wire at the terminal which is for automatic windings equal to the winding traction force is steadily decreased by the bending process and overtensioning of the wire due to soldering or heat generation is avoided.
Patent DE-2330399-A1 (DE)
Title: Fixing bolt for anchoring in masonry - has series of spreader rings expanded as cone is tightened
Inventor: FISCHER ARTUR
IPC: F16B13/06
Filed: 1973-06-15
Abstract: The main patent describes a fixing bolt with expandable spreading sleeve. The conical spreader is forced through the sleeve as it is tightened. In this patent the spreading sleeve is replaced by a number of adjacent rings, with a slot cut in each. The outer cross section of the rings is a little greater than the cross section of the hole. There is a flange at the base of the cone. This is very slightly wider than the masonry borehole. Between the rings and the shoulder of the bolt, there is a deformable plastic washer. This prevents the rings from slipping over the bolt as the cone is tightened.
Patent DE-2331491-A1 (DE)
Title: Magnetic tape cassette for two reels - has cut-out going beyond imaginary line linking centres of two reels with tape passing across it
Inventor: ENGERT HEINZ
IPC: G11B23/087
Filed: 1973-06-20
Abstract: The front edge of the cassette has a U-shaped identation across which the tape passes, guided by a slit in each side of the U. When the cassette is inserted the entire magnetic head fits in the space enclosed by the U and presses the tape clear of the sides of the two slits thus eliminating friction other than that due to the head. Due to the space saving thus achieved the instrument need not be much longer than the cassette.
Patent DE-2333059-A1 (DE)
Title: Multi-format plate camer - is fitted with casette holders mounted on common slider with separate ground glass screens
Inventor: SCHRADER GOETZ
IPC: G03B19/18
Filed: 1973-06-29
Abstract: The camera back is fitted with guides to position a slider on which are mounted two cassette holders. Each cassette is for a different format picture taken in conjunction with a sliding format frame. Separate ground glass screens are fitted to each cassette while locating grooves on the guides accurately position the cassettes. In the case of several small pictures taken on one cassette, e.g. three different profiles of head and shoulders, the slider is moved only partway across the camera while the format frame remains stationary. The camera enables rapid pictures to be taken at different formats.
Patent DE-2338089-A1 (DE)
Title: Water-insol. mono-azo dyes free from ionogenic gps - used for dyeing synthetic hydrophobic materials
Inventor: HEINRICH ERNST DR
IPC: C09B29/40
Filed: 1973-07-27
Abstract: Water-insol. monoazo dye, free from ionogenic gps., are of formula (I) (where Z is H or opt. substd. 12C alkenyl, (cyclo)alkyl, aralkyl or aryl) and are used for dyeing and printing hydrophobic matls., e.g. polyolefins, polyvinyl cpds., polyacrylonitrile, polyamides, cellulose 2 1/2-and tri-acetates and esp. polyesters, e.g. polyethylene terephthalate. The use of 2,4,5-trichloraniline as diazo component also gives dyes sight excellent props. (I)give golden yellow to yellow-orange dyeing with very good fastness, esp. towards light and sublimation. They are suitable for use in the presence of carriers and in the thermo-fixing process.
Patent DE-2340242-A1 (DE)
Title: Textile label tape weaving and cutting apparatus - combining gripper loom with jacquard machine and slitting wide web into tapes
Inventor: SCHULTZ WERNER
IPC: D03D1/00
Filed: 1973-08-09
Abstract: Textile label tapes mfg. appts. includes a gripper loom associated with a Jacquard machine to provide a wide web composed of longitudinally extending interconnected tapes and a cutter disposed behind the picker boom for slitting the wide web into individual tapes. It is used for producing a number of differentially wide tapes at the same time.
Patent DE-2340486-A1 (DE)
Title: Separation of solids from suspension - esp airborne mineral fibres, using the layer already formed as an additional filter
IPC: D04H1/736
Filed: 1973-08-10
Abstract: An installation for completely sepg. mineral wool fibres transported on a current of air from the spinning machine to the collecting chamber, has an endless woven wire conveyor belt on which the fibres are deposited, divided into a number of sections. The air passing through the first section or sections of the conveyor where the layer of fibres is thinnest, is recirculated through a section or sections towards the end of the belt where the thicker and denser layer prevents the passage of any of the smaller fibres and particles.
Patent DE-2362887-A1 (DE)
Title: Ammonia recovery from weak aq. solns. - by stripping with steam and an inert gas to recover all ammonia as overheads
Inventor: MAVROVIC IVO
IPC: C01C1/10
Filed: 1973-12-18
Abstract: is recovered from a 0.1-10% aq soln. of either free NH3, ammonium carbamate or (bi)carbonate, urea, or their mixt. (esp. urea synthesis effluents) but not contg. free CO2, by (a) passing the soln into the upper part of a fractionating column, (b) stripping NH3 at press. 20-400 psig with steam and 0.1-10 moles of inert gas/mole NH3 (calc. as free NH3) in the soln., (c) withdrawing overhead NH3, inert gas and water vapour, and (d) withdrawing from the column, a liquid condensate free of NH3 in any of the above forms. The NH3 is economically recovered, corrosion and explosion hazards in the rectifier are avoided and the water effluent is free from NH3.
Patent DE-2365428-A1 (DE)
Title: Safety Bourdon tube high pressure transducer - uses linkage to stop expansion after certain pressure thus avoiding explosion
Inventor: SCHMITT NORBERT DR ING
IPC: G01L19/06
Filed: 1973-05-02
Abstract: A simple Bourdon tube arrangement is presented which minimizes the risk of explosion of the tube for high pressure application. Essentially the indicating end of the Bourdon tube is not free but is attached to a retaining arm or link via a stretchable membrane. During normal operation the membrane stretches and the Bourdon tube deflects producing a reading on an attached scale. When some upper pressure limit is reached, however, with the membrane fully stretched, the link permits further deflection and so prevents the tube straightening and exploding. The device is easily made and the limiting pressure can be accurately fixed.
Patent DE-2400898-A1 (DE)
Title: Deformable seat belt anchorage - has clips fixed to sliding seat with blocking action from bendable element
Inventor: ANDRES RUDOLF
IPC: B65H59/22
Filed: 1959-02-04
Abstract: The sliding seat is fitted with a set of blocking angle shaped to rest against the extended strip on the end of which the belt clip is fastened. At a sudden pull from the extended strip due to an emergency deceleration of the vehicle, one arm of the angle is deformed in such a way that the other arm is bent to move upwards and to come into contact with one of the notches of the toothed rail fixed rigidly to the car body. The seat is prevented from sliding forward by this and the tautness of the belt takes up the energy. The deformation of the angle is not sudden, so that the forward slide of the seat is similar to that occurring during a breaking action.
Patent DE-2401496-A1 (DE)
Title: Glass-pane-holding strip assembly in door recess - one strip with hooked edge locking onto second strips embracing edge
Inventor: BUERGERS AUGUST
IPC: E06B3/58
Filed: 1974-01-12
Abstract: The assembly is esp. suitable for holding a glass pane in a recess in door, providing for lighting an entrance hall or similar enclosed space. One strip, for insertion on the edge of the recess has an outwards bent embracing edge fitting against the frame surface, and an outwards bent hook edge on the other side of the frame. A second strip has an outwards bent embracing edge which covers the hooked edge of the first, so as to lock onto it, providing a detachable firm fixture against removal of the first. The two strips are tongued and grooved where they meet, and they have holder ledges, on opposite sides of the pane, to hold the pane firmly in place, pref. with soft lips for close embrace. Mass production of doors with window cutouts is simplified.
Patent DE-2404336-A1 (DE)
Title: Mounting fibres on metal foil strips - product used as blanks in manufacture of e.g. turbine blades
Inventor: WOLFF EBERHARD DIPL ING
IPC: B23P15/02
Filed: 1974-01-30
Abstract: The arrangement is used in connection with the method described in Patent P 20 55 637 for the manufacture of highly stressed turbine blades or parts with similar hollow profile. A polygon shape winding cylinder is used, on the sides of which, strips of metal foil are mounted. The cylinder is then mounted on a winding macine and fibre or wire is wound round the cylinder so that the wire is evenly space on the strips. The fibre or wire is then either bonded to the metal strips or welded by the roller of a welding machine which is rolled along the edges of the strip. Grooves run along the edges of the polygon. The wires can be cut and the foils separated by running a cutting wheel or a burner along the grooves.
Patent DE-2406698-A1 (DE)
Title: Small hand-operated printing calculator with instant display - has elastic printing type and magneto-mechanical stores
Inventor: BUSCHMANN HEINRICH PROF DIPL P
IPC: B41J2/235
Filed: 1974-02-13
Abstract: The output of a computing unit is effected in reflected face type on printing type projecting in relief over the unit housing and accessible on the surface. The printing type can consist of self-colouring, small-pored, elastic material. The output can be effected on magneto-mechanical stores and the movement of the type bars can be controlled by the stores. The adjusting energy and locking energy for the stores and the type bars can be transmitted to adjusting and locking devices by mechanical means. An electrooptical indicator device can be provided so as to be controlled parallel to the printing type.
Patent DE-2416034-A1 (DE)
Title: Proportional mixing valve for fluids - valve chamber being separated into fluid passages by plugs carried by spindle
Inventor: ETTER BERWYN ELMER
IPC: F16K11/00
Filed: 1974-04-02
Abstract: Tapered plug valve in which a single, rotatable valve spindle carries several, spaced coaxial plugs which separate the valve chamber into indecent fluid passages each with its own inlet. Each plug has a skirt with a series of radial holes of progressively increasing diameter around the skirt circumference, and spindle rotation enables one radial hole of each series to align with an outlet port so that each valve fluid passage communicates with a common mixing outlet manifold. The valve can mix most types of gases and liqs. in controlled proportions.
Patent DE-2416565-A1 (DE)
Title: Controlled torque locking nut assembly - has axial extensions with helical faces on torque and locking nuts
Inventor: GONZALEZ CESAR FERNANDEZ-VERAU
IPC: F16B39/28
Filed: 1974-04-05
Abstract: The torque nut has a pair of diametrically opposed lower extensions which have continuations of the nut thread on their inner faces and lower faces which extend helically and in the opposite direction to the inclination of the thread. The top surface of the lock nut has a similar pair of extensions and the nuts are assembled with the inclined faces of the extensions of one nut locating the flat faces between extensions of the second nut. A band type spring has inner protuberances which engage the grooved outer surfaces of the nut extensions and prevent slip between the nuts.