baber/WOPTO huggingface dataset:
Patent GB-1314556-A (GB)
Title: Photopolymerisable compositions and elements
IPC: C08F2/02
Filed: 1970-11-18
Abstract: 1314556 Photo-polymerizable compositions  E I DU PONT DE NEMOURS & CO 18 Nov 1970 [18 Nov 1969] 54917/70 Heading G2C [Also in Division C3] Photo-polymerizable elements comprise a support bearing a layer of a composition comprising (1) 3 to 100 parts by weight of at least one non-gaseous ethylenically unsaturated compound containing at least one terminal ethylenic group, having a boiling point above 100‹C at normal atmospheric pressure and being capable of forming a high polymer by photo-initiated addition polymerization; (2) 0 to 97 parts by weight of a thermoplastic macro-molecular organic polymer binder; and a photo-polymerization initiator system comprising (3) an aminophenyl ketone and (4) a hydrogen donor, free-radical producing active methylene compound (i.e. a compound containing the group -CO CH 2  CO-) or amino compound; there being present 100 parts by weight of (1) or (1) and (2) and 0À001 to 10 parts by weight of each of constituents (3) and (4). Component (1) may be a polyol poly (meth) acrylate, a compound containing two or more (meth) acrylamide groups, a divinyl ester, styrene or a derivative thereof, an unsaturated aldehyde such as sorbaldehyde (hexadienal), or an ethylenically unsaturated polymer. The optional thermoplastic binder (2) may be a polyester, polyamide, vinylidene chloride copolymer, ethylene/vinyl acetate copolymer, cellulose ether or ester, polyethylene, synthetic rubber, polyvinyl or poly (alk) acrylate ester, polyethylene oxide, vinyl chloride polymer, polyvinyl acetal, polyformaldehyde, polyurethane, polycarbonate or polystyrene. Component (4) may be an aliphatic or cyclic dione, an aliphatic amine, a polyamine or N-phenyl-glycine. The compositions may also include non-thermoplastic polymers or resins, fillers, dyes, pigments and thermal polymerizationinhibitors. The supports for the elements may be of metal or flexible polymer film (e.g. aluminium plates or polyethylene terephthalate film) and a protective cover may be applied to the photo-polymerizable layer. The elements can be exposed to radiation from sources such as carbon arcs, mercury vapour arcs, fluorescent lamps with U.V radiation-emittingphosphors, argon glow lamps, electronic flash units and photographic flood lamps and, in some cases, to visible light. Applications include pre-sensitized lithographic printing plates, photo-resists, and the preparation of coloured images from colour separation negatives by dusting the exposed material with a coloured toner which adheres to the unexposed areas.
Patent GB-1387989-A (GB)
Title: Treatment of foodstuffs
IPC: A23K3/00
Filed: 1972-11-29
Abstract: 1387989 Biocidal composition of aliphatic acids EASTMAN KODAK CO 29 Nov 1972 [29 Nov 1971] 55095/72 Heading A5E [Also in Division A2] An anti-fungal, anti-bacterial mixture for the treatment of crops and animal feedstuffs comprises at least two acids selected from propionic, butyric and isobutyric acid, the composition of the mixture lying within the area on the triangular three-phase diagram of the Figure enclosed by the lines connecting the points A, B, C, D, E, F and A. The composition may be diluted with water prior to use. The use of the composition is exemplified in the treatment of corn, wheat, oats, soybeans, cottonseed meal, soybean meal, peanuts, a molasses-containing dairy feed, and tankage.
Patent GB-1373409-A (GB)
Title: Electro-optic display devices
IPC: G09F13/00
Filed: 1971-11-29
Abstract: 1373409 Modulating light SONY CORP 29 Nov 1971 [30 Nov 1970] 55231/71 Heading H4F [Also in Division G5] If a display panel 2 comprising a plurality of crystalline elements 9 across each of which an electric field may be selectively applied to vary the birefringence thereof is disposed, e.g. between crossed or parallel polarizers 3, 4 so that the intensity of light L transmitted from a source P therethrough may be altered, it is necessary for the crystal axes of all the elements to be parallel for a uniformly illuminated display. This condition is obviated if a (polyethylene terephthalate) #/ 4  plate 7 is provided so that circularly polarized light falls on panel 2. In the embodiment shown, each element 9 introduces an additional #/ 2  retrardation along a preferred axis when activated, reversing the hand of the circularly polarized light passed thereby. A further #/ 4  plate 6 acts together with analyzer 3 as a circular analyzer. In modifications: (a) a scattering reflective plate (5) is placed next to plate 4 so that natural illumination passing through the assembly 3, 6, 2, 7, 4 is partially depolarized and reflected back through the assembly to the observer, Fig. 10 (not shown); (J) Elements 3, 6 and 2 are retained, with a reflective scattering plate adjacent the panel 2, Fig. 11 (not shown) for similarly reflecting ambient light back to the observer, the elements 9 in this case introducing an additional retardation of #/ 4  only, when activated; (c) the assembly of Fig. 8 is used with elements (light guide with lenticular end, and a scattering reflecting surface) for directing natural or artificial light onto polarizer 4 (Fig. 9, not shown).
Patent GB-1254692-A (GB)
Title: Improvements in or relating to electronic oscillators
Inventor: WELLS FRANK HERBERT
IPC: H03K4/94
Filed: 1967-12-05
Abstract: 1,254,692. Transistor sawtooth oscillators. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 5 Dec., 1968 [5 Dec., 1967], No. 55381/67. Heading H3T. A transistor triangular or trapezoidal wave oscillator comprises a capacitor charged and discharged at equal rates, the charging means remaining operative throughout so that the discharge current is twice that through the charging means. The capacitor 1 is charged through transistor 8 and discharged via transistors 9 and 15, the discharging being initiated by a tunnel diode 10 assuming its high voltage state and biasing on transistor 9. Transistor 5, when saturated, does not allow oscillation, input 6 therefore acting as an ON/OFF control. The frequency of oscillation is determined by transistor 14 which controls the base bias of transistors 8 and 15 and thus the values of the charge and discharge currents. The output is adjusted by resistors 17, 18 and can be clipped by diodes 21 and 22 to achieve a trapezoidal waveform.
Patent GB-1483658-A (GB)
Title: Knuckle structure for railway vehicle coupler
IPC: B61G3/04
Filed: 1974-12-23
Abstract: 1483658 Railway vehicle couplers AMSTED INDUSTRIES Inc 23 Dec 1974 [26 Dec 1973] 55508/74 Heading B7T  A railway vehicle coupler 10, Fig. 1, is  characterized by the form of a knuckle gathering surface 22, Fig. 2, of the coupler knuckle 12, which is adapted to be engaged, when the knuckle 12 is in an open position, by the closed knuckle 12a of a coupler 11 during a coupling operation, to effect alignment of the couplers 10, 11 while preventing premature closing of the knuckle 12 which would prevent coupling of the couplers. The gathering surface 22 of the knuckle 12 is convexly curved such that, at any point thereon, a resultant, force R between the open knuckle 12 and the closed knuckle 12a, which is the resultant of a force N normal to the surface 22 and a friction force fN tangential to the surface 22 passes at approximately the same predetermined distance from the pivot axis C of the knuckle 12 and the resultant force R is incapable of causing the knuckle 12 to pivot about the pivot axis C. In a preferred embodiment, the gathering surface forms part of a spiral curve. A circular arc struck with radius Z about a centre Y is said to form a satisfactory approximation to said part of the spiral curve.
Patent GB-1211737-A (GB)
Title: Producing reinforced thermoplastic materials
Inventor: CANNON CYRIL GEORGE
IPC: B29C70/38
Filed: 1967-12-07
Abstract: 1,211,737. Fibrous laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 2 Dec., 1968 [7 Dec., 1967], No. 55767/67. Headings B5A and B5N. [Also in Division D1] Rigid fibre-reinforced articles are made by subjecting a fibrous mass comprising at least some fibres coated with a thermoplastic material of a lower melting point than the fibres, to pressure and a temperature between the melting points of the coating and fibres so that substantially all the air is expelled from between the fibres and the coating flows to form a continuous matrix enclosing the fibres. The fibres may be continuous or staple fibres. The fibrous mass may contain fibres formed of the coating material. The fibres or the coating may be made from polypropylene, polethylene, vinyl chloride polymers, polyethylene terephthalate, acrylonitrile polymers, or nylon, or the fibres may be mineral fibres e.g. glass, asbestos, metal or carbon or drawn sheath/core synthetic fibres. The fibrous mass may be formed by carding, air laying or paper-making techniques, or it may be a sheet of side-by-side warp threads. The fibrous mass can be lightly bonded by heating to lightly sinter the fibres together, or by needling. The heating may be conducted by heated pressure rolls or a heated press which may be flat or shaped. A plurality of layers of fibres can be stacked between chromium-plated glazing plates during the hot pressing.
Patent GB-1112066-A (GB)
Title: Machine for making,filling and closing deep-drawn or vacuum formed packings
IPC: B65B47/10
Filed: 1966-12-14
Abstract: 1,112,066. Packaging machine; endless conveyers. O. HÍFLIGER, and R. KARG, [trading as HÍFLIGER & KARG]. 14 Dec., 1966 [15 Dec., 1965], No. 55905/66. Headings B8A and B8C. Vacuum drawn pockets, formed in a web, are filled from overhead buckets carried on a conveyer moving synchronously with the web. In the embodiment shown, sheeting, hot-air heated at 5 is drawn into recesses 7 in a drum as the recesses pass a vacuum duct 10, the process being aided by compressed air from a nozzle 6. Compressed air supplied in a further duct 11 assists removal and cooling of the web. As the pockets reach a filling station 14 conveyercarried buckets 17 discharge through camoperated bottom flaps 18 to fill the packets with, e.g. macaroni. Cover sheeting 24 is applied and sealed by a roller 25 and individual packings are separated by a cutter 31. A further cutter 34 breaks up the residual sheeting. The buckets are loaded from hoppers 20 having ducts opened by a slide plate 21. The cover may be high-frequency welded.
Patent GB-1177909-A (GB)
Title: A process for isolating Cis-1,4-Polyisoprene from Hydrocarbon Solutions
Inventor: WITTE JOSEPH
IPC: C08C2/06
Filed: 1968-11-27
Abstract: 1,177,909. Isolating polyisoprene from hydrocarbon solutions. FARBENFABKIKEN BAYER A.G. 27 -Nov., 1968 [21 Dec., 1967], No. 56235/68. Heading C3P. Cis-1,4-polyisoprene is isolated from a catalyst-containing solution by deactivating the catalyst by adding thereto a primary or secondary diamine or a polyamine '(a compound containing 3 or more primary or secondary amino groups), followed by steam distillation. An additional deactivating agent in the form of an aliphatic alcohol having 1 to 6 carbon atoms, or a secondary aliphatic or cycloaliphatic monoamine may also be added to the catalyst-containing solution. In the examples, isoprene is polymerized in hexane using a catalyst comprising titanium tetrachloride -and aluminium triethyl. A mixture of an amine and ethanol in hexane, followed by 2,6-di-tert-butyl-4-methylphenol (stabilizer), is added to the polymerization mixture. The solid polyisoprene is then separated by precipitation with ethanol or by steam distillation. The amine used to deactivate the catalyst is one of the following, 1,2-diaminoethane, bis- (2 - aminoethyl) - amine, 1,11 - diamino - 3,6,9-triazaundecane, 1,6-diaminohexane; 1,4- diaminobutane, optionally mixed with methyl stearyl amine and/or ethanol. 2,2<SP>1</SP>-Dihydroxy- 3,3<SP>1</SP>  -  di-tert - butyl - 5,5<SP>1 </SP>- dimethyl diphenyl methane may be used as a stabilizer.
Patent GB-1294100-A (GB)
Title: Jitter correction system for magnetic recording and reproducing apparatus
IPC: H04N5/95
Filed: 1969-11-19
Abstract: 1294100 Video recording NIPPON VICTOR KK 19 Nov 1969 [21 Nov 1968 14 Feb 1969] 56694/69 Heading H4F The invention provides a system to correct for relatively high frequency jitter obtained in a video signal reproduced from a magnetic recording tape due to variations in tape stretching or in the rate of rotation in the magnetic heads. In the system shown the synchronizing signals are separated out from the reproduced video signal by a separator 54 and the vertical sync pulses are used to trigger a blocking oscillator 57 which provides uniform width pulses to a phase comparator 58. The other input of the comparator 58 receives a trapezoidal pulse train from a boot-strap circuit 53 triggered by vertical sync. pulses from an external sync. signal applied to terminal 50a. The output g from the comparator 58, after passing through a low pass filter 59, contains high amplitude, low frequency jitter components which are used to phase modulate the sawtooth output of a boot-strap circuit 61 controlled by pulses at the horizontal sync. interval from a multivibrator 51 triggered by horizontal sync. pulses from the external source. The phase-modulated signal controls a boot strap circuit 62 to produce a trapezoidal pulse train which is applied to a phase comparator 64. The phase of this train is compared in the comparator 64 with horizontal sync. interval sampling pulses obtained from the reproduced video signal. The low frequency jitter components cancel in the comparator 64, and the output from a high pass filter 65 represents only the higher frequency jitter components. Because the filter 65 distorts the phase and amplitude of jitter components at frequencies close to its cutoff, corrections have to be applied in circuits 73, 74 respectively fed by 30Hz and 60Hz band pass filters 71, 72. The corrected output at terminal 79 is used to control a variable delay circuit for jitter correction of the reproduced video signal.
Patent GB-1214453-A (GB)
Title: Domestic hot water cylinders
Inventor: SHORT JOHN DUDLEY
IPC: F24H1/18
Filed: 1966-12-20
Abstract: 1,214,453. Moulding water containers. OSMA PLASTICS Ltd. 5 Dec., 1967 [20 Dec., 1966], No. 56946/66. Heading 5BA. [Also in Divisions F3-F4] A hot water cylinder consists of moulded sections 1, 2, of synthetic plastics material, e.g. glass fibre reinforced polyester resin, secured by adhesive at 4. The section 2 has three feet 7 moulded therein and the section 1 has a mounting 8 for an electric immersion heater. Openings 16 ... 19 are provided with pipe connection fittings 20. In moulding the sections, a preform is formed by sucking glass fibres on to a perforated former and spraying with a thermosetting binder, the resulting shell being baked. The shell is encased on its inner and outer surface in glass fibre mesh material, applied to a male mould, and an isophthalic or bisphenol A polyester resin mix applied thereon. A female mould is then applied and both moulds steam heated to cure the resin. The surfaces of the completed shells to be secured by adhesive are sand-blasted before application of an epoxy or polyester adhesive. In an alternative construction, press moulded end sections of the cylinder are secured by adhesive to a cylindrical centre section which is formed from centrifugally cast or filament wound tube.
Patent GB-1443938-A (GB)
Title: Drying process
IPC: D06B15/04
Filed: 1972-12-11
Abstract: 1443938 Freeze drying COURTAULDS Ltd 7 Dec 1973 [11 Dec 1972] 56972/72 Heading F4G A process for drying fibrous materials, such as a spun textile filament, a spun yarn, a fabric or an article produced therefrom, comprises freezedrying the material. The drying may be carried out under vacuum or in an atmosphere purged with a flow of low humidity gas.
Patent GB-1246152-A (GB)
Title: Magnetic deflection apparatus
IPC: H01J29/76
Filed: 1968-12-04
Abstract: 1,246,152. Electron beam magnetic deflecting apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 4 Dec., 1968 [7 Dec., 1967], No. 57568/68. Heading H1D. A magnetic mirror for an electron microscope or like apparatus comprises a pair of polepieces with generally conical faces adapted to produce a region of increased field strength gradient. Fig. 2 shows part of one polepiece which is in the form of a figure of revolution about the Z axis; the face of the polepiece generally follows the line 8 inclined at 6 degrees to the X axis, and is provided with a protuberance 10 which provides the increased gradient. An electron beam is injected parallel to the X axis in the X-Y plane (normal to the plane of Fig. 2) and is reflected at the region of the protuberance 10 as a diverging beam so that the arrangement acts as a diverging lens. In another arrangement, Fig. 5 (not shown), the protuberance is of stepped form instead of being rounded. In a further arrangement, Fig. 6 (not shown), each polepiece comprises three concentric members separated by non-magnetic gaps and each carrying its own coil winding, the middle coil being oppositely energized from the other two. The mirror may be used in an electron microscope (Fig. 7, not shown) comprising a electron gun (75) a condenser lens (76) an object lens (77) in which the object can be arranged, a projector lens (79), and the mirror (82) described above which reflects the beam to a luminescent screen (83) or to a photographic plate (84) arranged on either side of the projector lens, in accordance with the sense of the current through the mirror coils and of an auxiliary deflection means (81) arranged in front of the mirror. The targets (83, 84) may be arranged obliquely to the beam to correct distortion. In an application to an X- ray analyser (Fig. 8, not shown) a beam from an electron gun (90) is reflected by the mirror (93) to a concave electrostatic mirror (94) which focuses the beam on to a target (100) adjacent the magnetic mirror (93) to produce X-rays which are examined by a spectrograph.
Patent GB-1331975-A (GB)
Title: Integrated circuit resistor and a method for the manufacture thereof
IPC: H01L49/02
Filed: 1970-12-03
Abstract: 1331975 Resistors SESCOSEM SOC EUROPEENNE DE SEMICONDUCTEURS ET DE MICROELECTRONIQUE 3 Dec 1970 [4 Dec 1969] 57575/70 Heading HIS An integrated circuit resistor is produced by depositing a layer of tantalum or tantalum nitride on a substrate of silicon dioxide and coating part of the tantalum layer with a layer of aluminium or silicon dioxide in the shape of the required resistor by employing a mask. The uncoated part of the tantalum layer is reduced to give tantalum oxide by e.g. anodic oxidation, leaving a resistive layer of tantalum surrounded by a non conductive layer of tantalum oxide and sandwiched between two layers of silicary dioxide. Alternatively if the layer of tantalum has deposited on it a layer of aluminium in the shape of the required resistor, oxidation of the uncoated tantalum is effected by heating the layers in an atmosphere of oxygen to about 500 C. The aluminium layer is finally removed by preferential etching with a suitable acid leaving a tantalum resistor surrounded by a layer of tantalum oxides, other suitable resistive materials, masking materials, and substrates may be used in the above methods.
Patent GB-1217509-A (GB)
Title: An electrolytic process for the productin of organic peroxides
Inventor: DIETZ ROY
IPC: C25B3/23
Filed: 1967-12-19
Abstract: 1,217,509. Peroxides. NATIONAL RESEARCH DEVELOPMENT CORP. 4 Dec., 1969 [19 Dec., 1967], No. 57636/67. Heading C2C. [Also in Division C7] An organic peroxide (such as a dialkyl, alkyl aralkyl, diaryl, alkyl acyl or acyl alkaryl peroxide) is produced electrolytically by passing current through a conducting solution of an aprotic solvent containing molecular oxygen and at least one aliphatic or aromatic compound which is capable of taking part in a nucleophilic substitution reaction with a superoxide ion (O 2 -). Suitable solvents are acetonitrile, N,N-dimethyl formamide, acetone, diethyl sulphate, dimethyl sulphoxide, pyridine and ethyl methane sulphonate. The solution may be rendered electrically conducting by incorporating therein tetraalkyl-ammonium perchlorate. The oxygen may be passed into the solution before and/or during the electrolysis. The oxygen may be diluted with inert gas. Air may be used. Examples of aliphatic and aromatic compounds which may be used are specified butyl chlorides and bromides, n-propyl bromide, n-hexyl chloride, isopropyl chloride, allyl or benzyl chloride, acetic or benzoic anhydride, acetyl or benzoyl chloride, methyl acetate, diethyl or ethyl methyl sulphate, ethyl methyl sulphonate or triethyl phosphite. The anode may be of Pt gauze and the cathode may be of Hg, Pt, Ir, Rh, Au, Zn, Ag, Cu or Cd. The reaction may be at 0 to 20 C. using a cathode potential of - 0-8 to -1À6 volts with respect to a standard calomel electrode. The peroxide product may be removed from the electrolyte by solvent extraction with hexane or, where the product becomes entrained in oxygen passing through the electrolyte, can be frozen out in cold traps. Example 1 is of producing diethyl peroxide from diethyl sulphate which serves both as solvent and reacting material. Examples 2, 3 and 4 are of producing di-n-butyl peroxide from n-butyl bromide dissolved in dimethyl formamide (Example 2) and in acetonitrile (Examples 3 and 4).
Patent GB-1322320-A (GB)
Title: Lubricant de-foaming apparatus
IPC: B01D19/02
Filed: 1971-12-14
Abstract: 1322320 Degassing oil DAIMLER-BENZ AG 14 Dec 1971 [15 Dec 1970] 58015/71 Heading B1M Lubricating oil containing air bubbles is defoamed by passing the oil in at 3 whence some of the oil passes up through port 22 and leaves at 17, and the rest passes through ports 23 into chambers 16, where air separates from the oil due to the much slower rate of flow and oil still containing air flows slowly upwards and leaves via 14 and 17. Oil which contains little or no air passes through annular gap 24 and then through a screen 28 having a mesh size of 10-20Á where any air still present is stopped with associated oil which then passes back into chamber 16. Defoamed oil leaves at 4.
Patent GB-1406468-A (GB)
Title: Production of methylolated 4-oxotetrahydro-1,3,5,-oxadiazines
IPC: D06M13/322
Filed: 1972-12-18
Abstract: 1406468 Treating textiles BADISCHE ANILIN- & SODA-FABRIK AG 18 Dec 1972 [22 Dec 1971] 58262/72 Heading DIP [Also in Division C2] A textile finishing agent has the formula: wherein n is 1, 2, or 3. The compounds give crease resistant finishes having good resistance to hydrolysis. For example textile cloth may be impregnated therewith in an amount of 50-300 gm per litre of finishing liquor together with formaldehyde or other conventional N-methyl ol compounds, dried and treated at 80-160‹C in a condensation unit.
Patent GB-1405429-A (GB)
Title: Security device for freight containers and the like
IPC: G09F3/03
Filed: 1972-12-19
Abstract: 1405429 Security devices BLOXWICH LOCK & STAMPING CO Ltd 18 Dec 1973 [19 Dec 1972] 58623/72 Heading E2A [Also in Division B6] A security device for the fastening mechanism of a door for a freight container comprises a rigid body 10 and a rigid U-shaped shackle of which the limbs 24, 25 are received in spaced openings 11 in the body, each limb having a snap-in engagement with a resilient latch 16 wholly enclosed within the body. After insertion of the shackle into the body the fastening mechanism secured by the device cannot be released without obvious damage to or destruction of the body or shackle. As shown, the limbs 24, 25 are provided with hooks 26 which snap into slots 19 formed in the limbs 17, 18 of the latch. Lugs 30 and kinked parts 28, 29 of the shackle respectively enter notches 14 in the recesses and the recesses themselves to prevent insertion of a tool between the lugs and kinked parts and the body.