baber/WOPTO huggingface dataset:
Patent GB-1420990-A (GB)
Title: Holographic records
IPC: G03G5/022
Filed: 1973-08-16
Abstract: 1420990 Holograms RCA CORPORATION 16 Aug 1973 [18 Aug 1972] 38708/73 Heading G2J A holographic record consists of a transparent polymeric substrate coated with an adherent, uniform, embossable, optically clean thermoplastic resin comprising a polyester-based polyurethane, or a linear polyester derived from ethyleneglycol, terephthalic acid and sesacic acid with a molecular weight in the range between 20000 and 30000 and containing an anti-tacking agent, the surface of the resin having embossed thereon holographic information in the form of a relief pattern. In Examples (1) a solution of polyester is mixed with a solution of polyvinyl acetate and roller coated on to polyethylene terephthalate tape. The clean smooth tape was embossed with a Ni master tape at 130C to yield a holographic record and (2) polyurethane tape was analogously treated.
Patent GB-1334588-A (GB)
Title: Excavators and advancement devices for use therewith
IPC: E02F9/04
Filed: 1971-08-18
Abstract: 1334588 Excavators; dredgers E VINKE 18 Aug 1971 [5 July 1971] 38825/71 Heading E1F [Also in Division B7] A device for advancing a vehicle, e.g. an extractor or a dredger, comprises an arm 4a, 4b that can be extended or retracted in respect of itself by motor means 5 and a claw 6 that, when the arm is mounted on the vehicle, can be raised and lowered. The movements of the arm and claw can be controlled to move the vehicle step wise over ground. The arm may be raised or lowered by means 9, 10.
Patent GB-1525692-A (GB)
Title: Surfactant purification by an electrolytic method
IPC: C09K23/00
Filed: 1974-09-06
Abstract: 1525692 Electrodialytic surfactant purification ALBRIGHT & WILSON Ltd 4 Sept 1975 [6 Sept 1974] 38937/74 Heading C7B A surfactant whose net electric charge is zero is purified of ionic contaminants by electrodialysis. The following kinds of surfactant (ionic impurities in parenthesis) are referred to; amine oxides (NaHSO 3 , Na 2 SO 4 , Na 2 SO 4 ); betaines and sulphobetaines (CH 2 Cl.COOH, NaCl, CH 2 OH.COONa); alcohol-or alkylphenol-alkylene oxide adducts (NaOH); imidazolinium quarternaries of amphotoric nature (Cl<SP>-</SP>). Operation at or near the isoelectric point is preferred, except for betaines where pH 4-10 is useful. The process tends to concentrate the solution and additional ionic impurity e.g. NaCl may be added in such case to give a product of predetermined surfactant concentration and ionic content. Conventional cells are used with platinized electrodes and turbulent flow at 20-40C. The anode may be washed in a separate stream e.g. acidic NaCl. If surfactant passes through the cathode compartment, the pH may be monitored and controlled by addition of base. A recycle process is useful with monitoring and control of pH, temperature, flowrate and conductivity.
Patent GB-1389125-A (GB)
Title: Cryogenic line assembly
IPC: F16L59/14
Filed: 1972-08-22
Abstract: 1389125 Low temperature cables COMPAGNIE GENERALE D'ELECTRICITE 22 Aug 1972 [23 Aug 1971] 39048/72 Headings H1A and A4D An arrangement for thermally insulating a cryogenic line 2 which may contain electric power transmission lines, coaxial signal lines or channels for cryogenic fluids comprises a screen between the line 2 and a metal outer, fluid tight enclosure 28, the screen being constituted by two part cylindrical portions 12, 14 carrying conduits 20, 22, 24, 26 for cooling fluid, the cylindrical portions and conduits being of an alloy of relative thermal contraction less than 5. 10<SP>-4</SP>. The alloy may be iron/ nickel containing 30 to 45% nickel. Elements 36, 38 suspend the shield, 12, 14 within enclosure 28 and line 2 within the shield. The part cylindrical portions 12, 14 are relatively located by thermally insulating intermediate members 16 which are preferably externally covered by a felt strip 50 so that thermally insulating powder 42, e.g. alumina between the shield 12, 14 and enclosure 28 cannot pass to the inside of the shield. A conduit Fig. 4, (not shown) may pass from the outside of enclosure 28 to inside the shield so that the space between line 2 and enclosure 28 can be evacuated. Conduits 8, 10 are mounted on and are thermally insulated from the line 2, e.g. to recirculate liquid helium which has flowed through and around hollow conductors 4. All the elements of line 2 including conduits 8, 10, are made to be non- variable with temperature. In Fig. 3 (not shown), the annular members which support the shield in the enclosure and the line in the shield also form fluid tight seals in the annular spaces.
Patent GB-1354101-A (GB)
Title: Electric shavers
IPC: B26B19/02
Filed: 1970-08-14
Abstract: 1354101 Dry shavers GILLETTE INDUSTRIES Ltd 11 Aug 1971 [14 Aug 1970 12 March 1971] 39377/70 and 6714/71 Heading B4B [Also in Division H2] An electrically-operated dry shaver comprises a cutter 13, 14 connected to a drive member 7, 10 operated by a battery-powered motor 4 which is supported in a frame 2 enclosed by a metal casing 1, an apertured shear plate 16 for engagement with the cutter being mounted in a head casing 17 removably secured to the frame. The cutter is releasably secured to the drive member 7, 10 via a split-pin connection 11, the drive member being mounted on leaf springs 8. The cutter is reciprocated by means of an eccentric 6, 6a rotated by the motor 4; the motor is mounted in resilient members 5 provided in the frame. A long hair trimmer is provided on the head casing 17 and comprises a fixed shear plate 21 and a reciprocable cutter 22, the latter being secured to a stud 26 adapted to be engaged or disengaged with a drive arm 10b, by means of a finger piece 23; the finger piece is locked in each position by means of a spring-loaded button 25. The batteries 3 are rechargeable and connected to the motor 4 via a three-position switch 34; in one position, the batteries are connected directly to the motor for shaving, in a second position, the motor is open-circuited and the batteries connected to terminals 27, 28 which may then be plugged into a charging unit, Figs. 7, 8 and 9 (not shown) and, in the third position the motor is connected directly to the terminals so that the latter may be connected to a dry battery, if required. In a modification, the rechargeable batteries may be replaced by dry batteries, the easing then being provided with a suitable opening therefor and the three-way switch replaced by a simple on-off switch.
Patent GB-1195866-A (GB)
Title: A Method of and Apparatus for Pressurising a Liquid System such as a Hot Water Heating System.
Inventor: WILLIAMS IVAN ARTHUR
IPC: F24D3/04
Filed: 1967-09-02
Abstract: 1,195,866. Heating by circulation of liquids. PRESSURISATION Ltd. 23 July, 1968 [2 Sept., 1967], No. 40231/67. Heading F4U. Liquid circulating in a closed heating system is maintained under pressure by heating a liquid in an enclosure, entrapping the resultant vapour and applying the pressure of the trapped vapour to liquid in the system. As shown, a steam-generating chamber 10 contains an electric heater 11, is supplied with water from spill tank 13 via a strainer 14 and pump 15, and has a steam outlet conduit 18 which contains a pressure-reducing valve 18A. Steam from conduit 18 passes through valve 23 to drive pump 15 and through a valve 21 into a cylinder 19 where it contacts one side of a piston whose other side contacts the water in the heating system. Water is supplied to cylinder 19 from tank 13 and the bottom of the cylinder communicates with a cushion chamber 20 of the heating system. Steam from conduit 18 is also supplied to the top of chamber 20 via pressurereducing valve 22 and under the control of a float 26.
Patent GB-1077207-A (GB)
Title: Plastics electrical resistors
IPC: H01C7/02
Filed: 1965-09-22
Abstract: 1,077,207. Laminates. POLYELECTRIC CORPORATION. Sept. 22, 1965 [Oct. 9, 1964], No. 40473/65. Heading B5N. [Also in Division H1] A resistor is formed from a cross-linkable polymeric material which has dispersed therein finely-divided conductive particles, the resistor having terminals embedded therein around which the polymer has been cross-linked. The conductive particles may be Fe, Cu, Cr, Ti, W, B, Si, Ag, Au, Al, C, Pt metals, alloys or metal salts of size 0À01-1À0 Á. and in amount 25-75% of the volume of the polymer. The polymer may be polyethylene, polypropylene, polyisobutylene, epoxy resins, PTFE, polytrifluoromonochloroethylene, melamines, phenol-formaldehyde, polyurethanes, or silicone rubber. The polymer is cross-linked about the terminals by irradiating with 2MEV electrons part or all of the resistor. Alternatively, organic peroxides or other cross-linking agents are used in the initial polymer so that cross-linking occurs when the terminals are applied with heat or the whole resistor is heated. It is preferred that the resistor has a terminal cross-section greater than its mid cross-section for example by provision of one or more annular grooves or by extruding the polymeric composition in the form of an I- bar. The terminals may take the form of a fan-shaped series of wires, a perforated metal plate or a wire mesh which may have flanged edges and may be pressed into hot extruded material. Cooling of the resistor may be effected by a hole therethrough.
Patent GB-1107763-A (GB)
Title: Improvements in or relating to vehicles
IPC: B60P1/02
Filed: 1963-10-16
Abstract: 1,107,763. Raising and securing load floors or pallets on vehicles; pallet trucks. H. G. POOLE. 18 Jan., 1965 [16 Oct., 1963], No. 40927/63. Headings B8E and B8H. A trailer or self-propelled vehicle has a chassis comprising longitudinal members 11 and a front cross member 10 but open at the end to provide a U-shaped space into which a load floor or pallet 14 can be raised and secured. Lifting arms 16 actuated by rams 18 engage bosses 15 on the floor 14 to lift it. The floor has projections 19 which engage recesses 21 in the members 11 to locate the floor and stiffen the chassis when the floor is raised. The floor is positively held raised by bolts entering sockets in it. Other lifting means are described including bars, mounted on pivoted arms, which engage projecting parts of the floor which may be in the form of a pallet with side members and actuation may be by a winch in place of rams.
Patent GB-1015112-A (GB)
Title: Improvements in or relating to vulcanizing moulds
IPC: B29C35/00
Filed: 1961-11-16
Abstract: 1,015,112. Door stops. PIRELLI S.p.A. Nov. 16, 1961 [Nov. 18, 1960], No. 41023/61. Heading E2X. [Also in Divisions B5 and F2] A stop member comprises a grooved moulded rubber body 10 bonded to a metal backing plate 11 having screw threaded member 12.
Patent GB-1061218-A (GB)
Title: Writing utensils
IPC: B43K8/06
Filed: 1964-10-08
Abstract: 1,061,218. Marking-instruments. PLATIGNUM PEN CO. Oct. 8, 1964 [Feb. 21, 1964], No. 41124/64. Heading B6P. A writing utensil comprises a disposable writing tip including a holder 3 and an elongated writing element 4 of felt or the like held functionally in the bore of the holder. Body portions 1, 2 of the utensil are secured together by a member 7, and the holder 3 is screwed into the portion 2. An ink feed control member 6 is held in the body 2 resting on the member 7, and comprises coaxially spaced discs and spaces 14, a longitudinal bore 11 accommodating the element 4, capillary grooves connecting the bore 11 to grooves 14, and an extension 15 which engages in the open end of a replaceable ink reservoil 9 disposed in the body 1. The end of the reservoir is originally closed by a ball 10 which is dis placed by the extension 15.
Patent GB-1292591-A (GB)
Title: Puzzle games apparatus
Inventor: HATCHETT TREVOR JOHN
IPC: A63F7/04
Filed: 1968-08-29
Abstract: 1292591 Puzzle T J HATCHETT and T R WARD 28 Nov 1969 [29 Aug 1968] 41266/68 Heading A6H A puzzle game apparatus comprises a hollow casing B, Fig. 1, having an interior lower floor connected by a ramp to an upper maze floor, and a freely movable ball whose position is altered by tilting the casing. In a modification, the ball has to be manoeuvred up the ramp "START", Fig. 6, and on to successive side platforms by using a freely movable central section. In further modifications, the casing contains wall and floor sections mounted on pivots or containing holes or carrying ceilings: or the casing has distinct sections each containing a ball: or the ball and/or the casing may be magnetic: or the puzzle may contain one or more one-way trap-doors: or the casing may have starting and/or finishing orifices.
Patent GB-1362388-A (GB)
Title: Process for the concentration and defluorination of phosphoric acid
IPC: B01D3/34
Filed: 1971-09-06
Abstract: 1362388 Concentration of phosphoric acid FRIEDRICH UHDE GmbH 6 Sept 1971 [12 Sept 1970] 41383/71 Heading B1B [Also. in Division Cl] Aqueous phosphoric acid is concentrated by passing it through heat-exchangers 2 and 3, and then introducing the preheated acid into the upper section of distillation column 1 while disributing into the lower section of the column the vapours of a liquid, e.g. gasoline, which boils in the range 90-120C and is insoluble in water. The vapours entrain water vapour and fluorine compounds from the aqueous acid; and the required concentrated acid flows from the base of the column to tank 1 via heat-exchanger 2 and cooler 10. The vapour mixture leaving the top of the column is contacted with a water in receiver 4, and partial condensation takes place. The residual vapour flows to heat-exchangers 3 and 5 where further condensation takes place, the condensate flows to cooler 6; and the condensate from cooler 6 and receiver 4 is collected in separator 7 where the water separates from the stripping agent. The latter is pumped through heatexchanger 5 to evaporator 9 where it is vaporized, and preferably superheated, before being returned to column 1. Examples describe the concentration of phosphoric acid from 41% to over 70%.
Patent GB-1272741-A (GB)
Title: Periscope
IPC: G02B23/08
Filed: 1964-10-09
Abstract: 1,272,741. Periscopes. ERNST LEITZ G.m.b.H. Oct. 9, 1964 [Feb. 15, 1964], No. 41424/64. Heading G2J. A periscope has a telescope head 2 which can be rotated step-by-step independently of the eyepiece 16. A Maltese Cross gear mechanism 6, 6a rotates the head via a ring gear 8. The gear 6 is driven by an electric motor 11 which can be rotated in either direction and stopped at will. A shaft 9a is rotated intermittently by the Maltese Cross gear mechanism and rotates a rotation correcting prism 14, and a shutter 17 which interrupts the sight line when the head viewing field is being changed. In a modification, Figs.3 and 4 (not shown), a second optical path is provided which does not rotate; the image from this source is superimposed on the main view in such a way that it is not obscured by the shutter. The line of sight can be adjusted relative to the horizontal plane by tilting mirror 3 by means of motor 4 which may also be part of a stabilizing system. Lens system 20, 21 provides variable magnification.
Patent GB-1398448-A (GB)
Title: Oxanyl halides and their utilization in a process for producing quinazoline derivatives
IPC: A61P29/00
Filed: 1973-09-05
Abstract: 1398448 oxamyl halide derivatives; quinazolinones SUMITOMO CHEMICAL CO Ltd 5 Sept 1973 [7 Sept 1972] 41815/73 Heading C2C The invention comprises compounds of formula wherein X is halogen; R 1 , R 2 , R 3  are each H, halogen, CF 3 , NO 2  or C 1-4  alkyl, alkoxy, alkylthio or alkylsulphonyl, and R 4  is H, C 1-4  alkyl (possibly substituted by C 2-5  alkanoyloxy or C 1-4  alkoxy), aralkyl, polyhaloalkyl, cycloalkyl, cycloalkyl-alkyl, tetrahydrofurfuryl, tetrahydropyranyl methyl, pyridyl methyl, furyl methyl or thienyl methyl; and a process in which such compounds are reacted with NaN 3  to give the corresponding 1-R 4 -4-phenylquinazolin-2-ones, which may be substituted in the fused benzene ring by R 1 , R 2  and in the 4-Ph by R 3 . The process may result in the formation of unidentified precursors of the quinazolinones (possibly in admixture with the latter), but these may be converted to the desired end products by heating. The oxamyl halides are prepared by reacting together the corresponding 2-aminobenzophenone and oxalyl halide.
Patent GB-898277-A (GB)
Title: Thiophosphonic acid esters
IPC: C07F9/40
Filed: 1960-12-05
Abstract: The invention comprises thiophosphonic esters of formula <FORM:0898277/IV (b)/1> where R is C1-6 alkyl, R1 is C1-4 alkyl and X is oxygen or sulphur.  They may be prepared by reacting an alkyl alkylphosphonite or an o-alkyl alkylphosphonothioite with nitrobenzenesulphenic acid chloride or by reacting an alkali metal salt of a nitrothiophenol with an alkyl alkylphosphonochloridate or an \sHO-alkyl alkylphosphonochloridothioate.  The products are insecticides (see Group VI).  m-Nitrophenylsulphenic acid chloride used as a starting material is obtained by passing chlorine into a methylene chloride solution of bis-(m-nitrophenyl) disulphide.ALSO:Insecticidal compositions comprise a thiophosphonic ester of formula <FORM:0898277/VI/1> where R is C1-6 alkyl, R1 is C1-4 alkyl and X is oxygen or sulphur together with a conventional liquid or solid carrier.  Known insecticides and/or fertilisers may be present.
Patent GB-1567578-A (GB)
Title: Process for the treatment of aqueous organic waste streams in an anaerobic filter
IPC: C02F3/28
Filed: 1977-10-07
Abstract: Residual streams, in particular acidic aqueous effluents from petrochemistry, are treated in an anaerobic filter 5, under high loads, with high recycling flow rates. The effluent originating from the filter passes through a zone 13 for release of the gases and sedimentation of the solids, containing a volume 14 at rest of the liquid of the said effluent. The particles of solid biomass deposit in the volume of liquid and are withdrawn, with the liquid, and recycled to the base of the filter with a fresh charge of the acidic residual stream and an added inorganic alkaline material. The discharge from the filter is conveyed to an anaerobic digester 31 and the activated sludge resulting therefrom is recycled into the filter 5. The alkaline material is preferably magnesium oxide or carbonate. Sodium formate can also be employed as alkaline material. <IMAGE>
Patent GB-958005-A (GB)
Title: Improvements in or relating to fluid valves
IPC: F28G1/16
Filed: 1962-11-06
Abstract: 958,005. Valves. DIAMOND POWER SPECIALTY CORPORATION. Nov. 6, 1962 [Nov. 6, 1961], No. 41913/62. Heading F2V. A valve for controlling flow of hot fluids, such as steam, comprises a reciprocable valve closure member 36 which co-operates with a seat member 22. The seat member is rigid and is formed with a flexible skirt 28 having a portion 32 welded to the valve housing. The skirt is spaced from the housing and forms a downwardly opening recess 28a which allows self draining of condensate. The seat member has a shoulder 30 which abuts a shoulder 20 of the housing and the upper part of the seat member is preferably spaced from the housing. An adjustable throttle member 70 on the downstream side controls the maximum flow through the valve.
Patent GB-1276555-A (GB)
Title: Separator for pleated filter and method and apparatus for making the same
IPC: B01D29/01
Filed: 1969-08-25
Abstract: 1276555 Fluid filter AMERICAN AIR FILTER CO Inc 25 Aug 1969 [6 Sept 1968] 42289/69 Headings BID and BIT [Also in Division B3] A pleated filter comprises spacer elements 2, Fig. 1, having an area 3 of folds of one height and a second area 4 of folds of a different height alternately stacked, Fig. 2, with filter material 6 interleaved between the spacer elements. A method and apparatus for making the spacer elements are also described and claimed (see Headings B3A, B3E).
Patent GB-1069369-A (GB)
Title: Mass coloration of polyesters
Inventor: COOPER ALBERT CHARLES
IPC: C08L67/00
Filed: 1964-10-16
Abstract: Linear polyesters (e.g. polyethylene terephthalate) are mass coloured with dyestuffs of formula <FORM:1069369/C3/1> wherein X is a substituted or unsubstituted aryl radical, Y is a substituted or unsubstituted alkyl, cycloalkyl, aralkyl or aryl radical and X and Y may be connected together via a bridging atom or group through the carbon atoms in ortho-position to the -NH- group so that together they form a 5- or 6-membered heterocyclic ring (e.g. a pyrrole, pyridine or 1:4-pyrazine ring) provided that (a) at least one of X and Y contains at least one carboxylic acid group, (b) the aryl radical represented by X (or, when Y is aryl, at least one of the radicals represented by X and Y) contains a nitro group in ortho-position to the -NH- group and (c) any substituents on X and Y are not sulphonic acid groups.  The duestuffs may be tumbled on to chips of the polyester (the dyestuff possibly being dispersed in water or alcohol) or alternatively the dyestuffs may be added during the preparation of the polyester.  Suitable additional substituents on X and Y are chlorine, bromine, nitro, cyano, alkyl, alkoxy, akylsulphonyl, arylsulphonyl and substituted derivatives, alkyl carbonyl, aryl carbonyl and substituted derivatives, acylamino and substituted derivatives, carbonamido and N-substituted derivatives and sulphonamido and N-substituted derivatives.  The dyestuffs may contain two or more groups of formula <FORM:1069369/C3/2> wherein A is an optionally further substituted aryl radical carrying the nitro group in orthoposition to the -NH- group, the two groups of the above formula being joined through the nitrogen atom of the -NH- groups by alkylene chains or aromatic rings which are themselves linked through divalent bridging atoms or groups such as -O-, -S-, -SO2-, -CO-, -NH-, -CONH- and -NHCONH-.
Patent GB-1280678-A (GB)
Title: Article designator
IPC: G06K7/12
Filed: 1969-06-20
Abstract: 1280678 Sensing records RCA CORPORATION 20 June 1969 [27 June 1968] 42389/70 Divided out of 1280677 Heading G4M The disclosure is identical with that of the parent Specification 1,280,677 but the claims relate to an article designator or label.
Patent GB-1414645-A (GB)
Title: Polymerisation process
IPC: C08F2/18
Filed: 1972-09-13
Abstract: 1414645 Suspension polymerization BP CHEMICALS INTERNATIONAL Ltd 13 Sept 1973 [13 Sept 1972] 42443/72 Heading C3P In an aqueous suspension polymerization process the reaction mixture is heated by condensing steam in the aqueous suspension while the reactor walls are maintained at a temperature above 10‹ C. and below 10‹ C. above the temperature at which the reaction becomes selfsustaining and preferably below 0-15‹ C. below such temperature. The polymerization of styrene is referred to and of vinyl chloride is exemplified.