baber/WOPTO huggingface dataset:
Patent GB-988182-A (GB)
Title: Improvements in and relating to cathode ray tubes
Inventor: BERRIDGE GEORGE FREDERICK
IPC: H01J29/87
Filed: 1961-11-16
Abstract: 988,182. Coating surfaces. THORN-A.E.I. RADIO VALVES & TUBES Ltd. Feb. 18, 1963 [Nov. 16, 1961], No. 41119/61. Heading B2B. [Also in Division H1] To reduce cathode-ray tube implosion risks, a multi-strand string or roving of synthetic material is wound under tension, around the tube envelope in a region 13 adjacent or overlapping the join of the funnel portion 12 with the front plate 11, and is fixed in position by synthetic resin. The region 13 should include the zones of maximum stress in the envelope, which may be determined by the use of resistance strain gauges during tube evacuations. The roving may be of glass or nylon fibres and is impregnated with resin before, during, or after winding and is wound over a partially-set synthetic resin coating. When all the resin has been cured or allowed to cure a further resin coating 15 may be applied and allowed to jell before fitting over it a cone 18 of matting of synthetic material impregnated with resin, which is well rolled in to remove air pockets, before being allowed to cure. Polyester or epoxy resins may be used. Specification 929,090 is referred to.
Patent GB-935768-A (GB)
Title: Improvements in or relating to the coating of materials with magnesia
IPC: F27D1/00
Filed: 1960-11-30
Abstract: Metals, ceramics and wood, e.g. steel sheets, melting pots, zirconium oxide, and electrode bars of titanium and/or zirconium borides, are coated, e.g. by flame-spraying powder, with magnesia containing 1 to 10% silica, not more than 5% of metal oxides other than magnesium, metals or mixtures thereof and not more than 0,5% of other matter, the percentages being by weight.  The zirconium compound contains the normal content of the corresponding hafnium compound.  Comparisons are made with flame-spraying substantially pure magnesia and magnesia bonded with clay in powder and rod form.  Particle sizes are specified. Specification 745,257 is referred to.
Patent GB-899256-A (GB)
Title: Improvements in or relating to valve oscillators
Inventor: MARTIN DAVID ERIC
IPC: H05B6/46
Filed: 1958-12-23
Abstract: 899,256. Valve oscillating circuits. GENERAL ELECTRIC CO. Ltd. Dec. 23, 1959 [Dec. 23, 1958], No. 41482/58. Class 40(6). [Also in Group XL(b)] The tank circuit of a valve oscillator, for use in dielectric heating comprises a toroidally shaped conductor surrounding the valve and connected thereto by coaxial annular terminal portions, the conductor having an annular discontinuity between the terminal portions so as to provide two parallel, inductive and capacitive, current paths at the operating frequency, the inductive path constituting the tank circuit proper. The oscillator is substantially a Colpitts oscillator and is a modified arrangement of that described in Specification 843,858. A valve 1 is enclosed by an earthed box to the walls of which the anode is connected by a short lead 4, and the cathode is effectively isolated from earth by a pair of cathode chokes 6 tuned beyond resonance so that they constitute a capacitance in parallel with the anode to cathode capacitance of the valve. Feedback to the oscillator is over the internal capacitances of the valve. The tank circuit comprises a toroidally shaped conductor 12 defining a cavity 13 provided with an output coil 17, the conductor having a pair of coaxial annular terminal portions 14, 15 'by which it is connected to the anode and grid terminals 11, 10, and an annular discontinuity 16 between these terminals, this discontinuity constituting a short cylindrical condenser of large diameter. The terminal portion 14 is separated from the grid terminal 11 by a thin sheet of dielectric material 16, forming a ring shaped parallel plate condenser which acts as a grid blocking condenser.
Patent GB-944949-A (GB)
Title: Improvements in or relating to the extrusion of metals
Inventor: EYRE PHILIP BERNARD
IPC: B21C37/20
Filed: 1961-11-21
Abstract: 944,949. Extruding; rolling. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 12, 1962 [Nov. 21, 1961], No. 41527/61. Headings B3M and B3P. Apparatus for forming a longitudinallyfinned metal tube comprises a container 1 for receiving a billet 45 to be extruded between an axially movable mandrel 8 and a die 4 into a plain tube, and a series of grooved rolls 15 for forming longitudinal fins on the tube. In the manufacture of a sheath of beryllium for a nuclear fuel element, a pre-heated hollow beryllium billet coated with silver to act as a lubricant, is loaded in the container against a graphite ring 43 resting on the die 4 which is supported from below by a cage 5 and wedge assembly 7 operated by an hydraulic ram 6. The latter is hinged at 33 so as to be detachable from a slot 38 in the wedge assembly. Container 1 is heated by electrothermal braid 44 insulated with glass tape. The die 4, mandrel 8, wedges 27, 28 and their guide plate 31 are coated with graphite by dipping in a suspension of colloidal graphite in water arid they are also polished before use. Mandrel 8 has an integral head 9 which is pressed downwards by an hydraulic ram 46 to extrude the tube and force it between the grooved rolls which are carried by the cage 5.
Patent GB-1086656-A (GB)
Title: Improvements in battery casings
IPC: H01M2/10
Filed: 1965-09-30
Abstract: 1,086,656. Battery cases. CONTINENTAL GUMMI-WERKE A.G. Sept. 30, 1965 [Oct. 9, 1964], No. 41530/65. Heading H1B. A wire handle 5 is sprung into slots 6 and may be lifted up for carrying, or tilted outwards. Slanting faces 3 enable the handle to be removed. The arrangement of the slots &c. is such that the casing can be moulded in one operation.
Patent GB-869594-A (GB)
Title: Slotting machine for slotting articles such as rivets
Inventor: WILSON RAYMOND OWEN
IPC: B23G9/00
Filed: 1959-12-08
Abstract: 869,594. Slitting rivets. OLYMPIC SCREW & RIVET CORPORATION. Dec. 8, 1959, No. 41640/59. Class 83 (3). Means for cross-slotting articles, such as rivets, comprises means 18 for feeding an article into an intermittently-movable turret 17 and means 108 for dislodging another, and resilient means 70 for holding a further article in the turret while it is slotted. Blanks are fed from a hopper 39 down a shoot 42, whence they are delivered singly by crank-operated escapement blades 60, 61, Fig. 7, to feed-screws 56, and thence into holes 47 in the turret 17. The opposite face of the turret has slots 51 to receive the two saws 52, carried by a head 23, as they slot rivets at stations 73, 74. The turret is indexed by a continuously-rotating wheel 66, Fig. 6, having a single tooth 67 which engages a star-wheel 68 on the turret-shaft 48, the turret being locked by an arm 79. The heads of the rivets in the turret are engaged by the spring-pressed sharp-edges shoe 70. The cutterhead 23 is reciprocated along rods 62, 35 by a rotating sleeve 98 carrying a follower 96 engaging a slot 97 in a cam 95 secured to the head. The head 23 also carries the spring- pressed plunger 108 which engages and ejects the rivet at the station 109.
Patent GB-1174635-A (GB)
Title: Improvements in or relating to Soil Tensiometers
Inventor: GULYAEV ALEXI ALEXEEVICH
IPC: G01N33/24
Filed: 1967-09-13
Abstract: 1,174,635. Measuring the moisture tension of soil; vacuum gauges. NAUCHNOISSLEDOVATELSKY INSTITUT GIDROMETEOROLOGICHESKOGO PRIBOROSTROENIA. Sept. 13, 1967, No.41714/67. Headings G1L and G1S. A device for measuring the moisture tension of soil comprises a tube 1, a micro-porous vessel 3 attached to one end of the tube and adapted for insertion into the soil, a vacuum sensing means comprising an air-tight chamber 7 having one wall formed by an elastic diaphragm 8 and means for releasably holding a measuring instrument 6 so as to permit mechanical interaction thereof with the diaphragm. A projection 19, fixed to a plate 18 secured to the diaphragm, actuates a finger 40 via a spring 11. The finger 40 is linked to the pointer 32 of the instrument which comprises a linear displacement indicator. The means for releasably holding the instrument 6 comprise inter engaging bushes which support the instrument in a housing 14, the hole in the housing being closed by a gate 16 when the instrument is removed. To use the device, a nut 42 is removed to allow the tube 1, the vessel 3 and the chamber 7 to be filled with water, holes 41 being formed in the tube to enable filling of the chamber. After replacement of the nut, the vessel 3 is inserted in the soil. If the soil contains little moisture, water is drawn out of the vessel 3 and the partial vacuum produced in the chamber 7 causes movement of the diaphragm and therefore of the pointer 32. A heat insulating casing 2 surrounds the lower portion of the tube.
Patent GB-1211008-A (GB)
Title: Diffusion analysis device and method of making the same
Inventor: ELEVITCH FRANKLIN RAY
IPC: G01N31/00
Filed: 1967-09-13
Abstract: 1,211,008. Forming diffusion analysis apparatus. F. R. ELEVITCH. 13 Sept., 1967 [13 Sept., 1966; 29 Aug., 1967], No. 41861/67. Heading B5A. [Also in Division C7] A method of making a diffusion analysis device comprises filling a mould having a first, base section and a second, cover, mould section in edge contact with the mould base section with a medium suitable for diffusion analysis, allowing the medium to harden to form a permeable gel which adheres to the mould base section but not to the mould cover section, and stripping the mould base section from the mould cover section to form a base having adherent thereto a film of gel of uniform thickness of not more than 1 mm. The mould cover section may have a plurality of well forming projections extending into the medium. In the Figure a lower mould section 11 consists of a flat member of transparent, low water-absorbent, low fluorescent, preferably flexible plastics material and an upper section 10 which is semi-rigid material of similar properties and has vertical end walls 12 and side walls 13 defining a shaped recess 14 in the lower face thereof. The plastics may be polystyrene. The base may be secured to the cover by a non- hardenable water-resistant adhesive 18. The top mould section 10 is attached to the lower section 11 to form a rectangular-shaped cavity. The cover 11 is provided with a plurality of horizontally - spaced downwardly depending dividing ribs 19 each of uniform distance from the next and all parallel with the end walls 12 and of the same height as the end walls. Wellmaking lips 24a and 24b are provided in a cover these ribs being of lesser height than the dividing ribs 19. A silicone release agent may be applied to the top section before the gel is introduced into the cavity formed between the two sections through opening 26. Suitable gels are aqueous solutions of agar, agarose, starch, acrylamide. The acrylamide may be poly. merized in the mould by the use of a catalyst such as a light or chemical catalyst.
Patent GB-1235296-A (GB)
Title: Gear cutting machine
IPC: B23F5/16
Filed: 1968-09-03
Abstract: 1,235,296. Gear cutting. MASCHINENFABRIK LORENZ A.G. 3 Sept., 1968 [2 Sept., 1967], No. 41924/68. Heading B3L. In a gear-shaping machine the pinion type cutter 25 is reciprocated and rotated in unison with the gear blank 10 and a superimposed transmission, e.g. the differential gear 17, is connected into the drive train either to the cutter or to the blank whereby the gear ratio between the cutter and blank may be varied, the superimposed transmission having its own separate controllable drive means. A pulsecontrolled motor 41 is connected through gears 40, 39 and worm gearing 37, 36 to the planetary carrier 34 of the differential and may be controlled in dependence on the strokes of the cutter 10, on the rotation thereof or on the feed or separating movements thereof. The variation of the drive ratio can be used for crowning, for angularly relieving the cutter on its return stroke, for varying the angle of the teeth cut, for changing from cutting leading flanks to cutting trailing flanks and for cutting gears with a prime number of gear teeth. The superimposed transmission may consist alternatively of a worm gear drive in which the worm is axially movable or of a spur gear drive having two meshing helical gears which are axially slidable relative to one another.
Patent GB-1437273-A (GB)
Title: Method of lining pipes
IPC: F16L58/10
Filed: 1973-09-06
Abstract: 1437273 Lining pipes STABILATOR AB 6 Sept 1973 [7 Sept 1972] 41988/73 Heading F2P A pipe is lined with a. flexible tube by radially contracting the tube to a diameter less than that of the pipe and forming an inward fold along it to provide an axial groove, the tube being held contracted by wires or bands spaced along it, the contracted tube being inserted into the pipe and the bands &c then cut or broken to allow the tube to expand into engagement with the inside surface of the pipe. As shown, a flexible tube 2 is contracted radially by passing it through a relatively small hole. An axial groove 7 is thus formed along the tube 2. Formation of the groove may be facilitated by thinner wall portions 4 along the tube. As the tube 2 emerges from the hole, it is secured in its contracted state by a series of plastics bands 5, coated with adhesive. The tube 2 is then introduced into the pipe 1. A carriage 7, guided by wheels 10, 11 is drawn down the groove 3. A knife 8 on the carriage successively cuts the parts 6 of the plastics bands 5. The tube 2 is thus released and expands against the inside of the pipe wall. The carriage 7 may alternatively be guided by the parts 6 of the bands 5, or by the inside of the pipe 1. Instead of the knife 8, the carriage 7 may carry an electrically heated wire to sever the bands 5. Instead of using the carriage 7, a cone of sufficient size nearly to fill the pipe 1 may be pulled through the tube 2, rupturing the bands 5 as it passes. Alternatively the two ends of the tube 2 may be sealed, and the bands 5 ruptured by admitting compressed air into the sealed tube.
Patent GB-1407254-A (GB)
Title: Epoxy resin-containing compositions
IPC: H01B3/40
Filed: 1972-09-11
Abstract: 1407254 Epoxy resin compositions WESTINGHOUSE ELECTRIC CORP 11 Sept 1972 [14 Oct 1971] 42031/72 Heading C3B [Also in Division H1] Epoxy resin compositions comprise (by weight): (I) 90-120 parts of a non-glycidyl ether cycloaliphatic or acyclic aliphatic epoxide; (II) 5-120 parts of a glycidyl ether epoxy resin; (III) 5-220 parts of a polycarboxylic anhydride; and as catalyst 0À08-0À9 parts of a quaternary organic phosphonium salt (IV) which has the formula in which R 1  to R 4  are C 1-21  alkyl radicals or aryl radicals and X- is a halogen, propionate, acetate, butyrate, isobutyrate or dimethylphosphate radical. I may be an epoxidized polyester, an epoxidized drying oil or an epoxidized cycloolefin, e.g. 3,4 - epoxycyclohexylmethyl - 3,4- epoxycyclohexane carboxylate. II may be a diglycidyl ether of bisphenol A. II may be hexahydrophthalic anhydride or is 1-methyl homologue, phthalic anhydride or pyromellitic anhydride. The composition may also comprise up to 200 parts by weight of a film of average size 10-300 Á per 100 parts by weight of I plus II. Uses.-Electrical insulation, especially for potting transformers.
Patent GB-942073-A (GB)
Title: Improvements relating to the production of hollow articles or components formed of or coated with silicon carbide
Inventor: POPPER PAUL
IPC: G21C3/06
Filed: 1960-12-07
Abstract: Silicon carbide in the form of hollow articles or coatings is prepared by pyrolyzing methyltrichlorosilane at 900 DEG  to 1800 DEG C. on a former which is kept in motion during the pyrolysis. In an example, a graphite former 1 is supported on wire coils 2 within a silica tube 3 which is slidable on supports 4 outside the coil 5 of a radio-frequency generator 6.  A motor and reduction gear 7 effects the movement of the tube 3.  Hydrogen gas under pressure in vessel 12 acts as a carrier for the methyltrichlorosilane in bubbler 16, but can by-pass through 17; the gases enter the tube 3 via a silica tube 11.  The apparatus is flushed with dry hydrogen before and after the pyrolysis.  The temperature of the former is raised to 1450 DEG  C. After removal from the tube, some of the graphite of the former is removed by drilling and the remainder burned out of the silicon carbide by heating in air at 900 DEG  C.  The silicon carbide is in the cubic form.  In addition to the linear motion, the former may be rotated during pyrolysis.  Th silicon carbide may also be obtained as coatings on particles of fissile materials, e.g. uranium dioxide or uranium carbide, and a fluidized bed may be used.
Patent GB-1400436-A (GB)
Title: Load sensing devices
IPC: G01L5/08
Filed: 1971-09-10
Abstract: 1400436 Crane safety devices SIR ROBERT MCALPINE & SONS Ltd 11 Sept 1972 [10 Sept 1971] 42366/71 Heading B8B [Also in Division G1] The tension in a derricking rope of a crane (Fig. 1, not shown) is arranged to compress a liquid filled rubber container 21 by means of links 22, 23 or cables (Fig. 3, not shown), and the pressure in the container is measured via connection 18. The pressure reading from the container 21 may be combined with a reading of the angle of the jib to produce a warning signal when overturning is approached.
Patent GB-1261012-A (GB)
Title: Improvements in or relating to electrical contact elements for a connector system and to methods of construction thereof
Inventor: BRADBURY RONALD LESLIE
IPC: H01R12/18
Filed: 1970-12-18
Abstract: 1,261,012. Making electrical contacts. ULTRA ELECTRONICS Ltd. 18 Dec., 1970 [20 Sept., 1967], No. 42719/67. Heading B3A. [Also in Division H2] Contact elements are formed in outline from a sheet of conductive material having inlaid therein a strip 6 of a noble metal or alloy thereof. The conductive material is preferably phosphorbronze, beryllium copper or a similar copper base alloy and the noble metal is gold, silver, platinum or palladium. A blank for a female element, Fig. 1, has two pairs of contact arms 4 joined by a bracket 2 from which also extends a terminal post 3; the blank is bent into a socket, the bracket 2 forming a channel of square or rectangular cross-section. A region of the arms 4 including the inlaid portion, is curved and is preferably domed. In the absence of a male contact, the inlaid portions of the arms may touch. Each male element, Fig. 7, comprises a contact region 13, a tapering, barbed, mounting region 14, and an interconnection region 15, and is intended to be mounted directly on an insulating board lying between the barb 16 and a shoulder 18. Both male and female elements may be plated all over with gold, or gold on nickel, either before or after shaping. Individual contacts are initially joined after the stamping process by strips 1, 12 respectively, and the sheet material is preferably phosphor-bronze inlaid with gold or an alloy of gold. Male elements may be inserted from either end of the female contacts, a further channel being formed, at the other end from the bracket channel 2, if necessary. The female contacts may be mounted in a housing 25, Fig. 6 preferably of diallyl phthalate loaded with short glass fibres, the terminal posts extending through holes 30, 31 in a printed circuit board 29 and being bent round to secure the housing 25 and contacts and to provide connection to the board circuitry by flow soldering. In the embodiment shown, one female element 27 has its terminal post extending from one end of the contact arm. The male elements are mounted in nylon bushes 19 which are themselves held in a chassis 20. In a further embodiment terminal posts are formed at both ends of a female element, and the housing may be omitted.
Patent GB-1476997-A (GB)
Title: Moulding compositions of reinforced pllyamides
IPC: C08L77/00
Filed: 1974-10-03
Abstract: 1476997 Polyamide moulding composition BASF AG 3 Oct 1974 [4 Oct 1973] 42874/74 Heading C3R A polyamide moulding composition contains (by weight of the total composition) 0À1 to 2% of a metal salt of a C 8-20  carboxylic acid; 0À5 to 4% of a lactam; and 10 to 70% of a mineral filler. The polyamide is preferably nylon 6 of R.V. 2À0 to 5À0 (at 1g/100 ml in H 2 SO 4  at 25‹ C.) or nylon 66 of K.V. 2.2 to 5À4; when nylon 6 it may be a blend of extracted and unextracted polymer giving the required proportion of free lactam. Specified salts are Ca, Sn, Ba, Zn and Al stearates. Specified fillers are Ca and Mg carbonates, A1 silicates and oxides, talcum, and silica flour. They generally have a particle size below 100 microns, preferably 1 to 40 microns, with a 1/d ratio below 10 : 1, and may be treated with an adhesive promoter e.g. aminopropyl triethoxysilane. A C 4-12  lactam, preferably caprolactam may be used. The composition may also contain conventional additives e.g. stabilizers, pigments and flame retarders.
Patent GB-1469408-A (GB)
Title: Method of mounting posters
IPC: G09F15/02
Filed: 1973-09-13
Abstract: 1469408 Posters IMPERIAL CHEMICAL INDUSTRIES Ltd 13 Aug 1974 [13 Sept 1973] 43076/73 Heading A4X [Also in Divisions B5 and G5 A poster 1 is bonded to the back of smoothsurfaced transparent acrylic or polyvinyl chloride glazing sheet 3 with hydrolyzed polyvinyl acetate 2 so that the poster legend is viewable through the sheet. An opalescent acrylic or polyvinyl chloride backing sheet 4 and a rubber sealing strip 5 are provided and the assembly is held in position against brackets 6, 7 of a poster box by a frame 8 connected, through a hinge 9 to the bracket 6 and attached to the bracket 7 by a retaining clip 11 and a stud 10. It is preferred that the hydrolysis of the polyvinyl acetate is 78-99% complete and that it gives 3 to 8 wt. per cent for weight solutions at 20C having viscosities of from 10-30 centipoises. The solution should preferably contain a water soluble plasticiser for the bonding agent, preferably about 1 wt. per cent of the solution. The plasticizer may be glycerol, ethylene glycol, diethylene glycol, triethylene glycol or glycerol monolactate. The glazing sheet 3 may be flat or curved. A silicon liquid may be applied to the bottom edge of the poster to prevent any water which may gather on a bottom support from staining the poster. The silicone is applied before the poster is bonded to the glazing sheet. The poster may be illuminated by a light source located behind the backing sheet.
Patent GB-1151075-A (GB)
Title: Process for the Removal of Tetrabromomethane from Gases.
IPC: B01D53/68
Filed: 1966-09-27
Abstract: 1,151,075. Treating gases with liquids. KALLE A.G. 27 Sept., 1966 [28 Sept., 1965], No. 43145/66. Heading B1R. Tetrabromomethane is removed from gases containing it by washing the gases with a liquid consisting of or containing at least one aliphatic, araliphatic or cyclic amine and/or an amino alcohol containing up to 20 carbon atoms. The washing liquid may be a molten substance or a solution and normally liquid, e.g. in a polar solvent of high boiling point. The liquid may be or comprise di- or triethylamine, stearylamine, di- or tri-ethanolamine, N - hydroxyalkylpiperazine and N- methyldiethylazoliamine. The washing liquid may be the above substances as a molten mixture, or a solution in N,N - dimethylformamide and/or N,N-dimethyl-acetamide.
Patent GB-1285944-A (GB)
Title: Improvements relating to liquid pumping and vapour handling apparatus for a liquid consuming system, e.g. a fuel system
IPC: F04D9/00
Filed: 1969-08-29
Abstract: 1285944 Centrifugal pumps; engine fuel systems CHANDLER EVANS Inc 29 Aug 1969 [4 Sept 1968] 43220/69 Headings F1C and F1G In a system for pumping a liquid together with large quantities of vapour, e. g. for delivery of fuel to an aircraft jet engine, having a centrifugal boost pump 12 and a downstream series-connected gear pump 16, excess fuel delivered to pump 16 and returning to pump 12 via line 24 combines with unused fuel returned through line 22 and powers an ejector pump 26 which draws off vapour through line 30 from various parts of the system and compresses and returns it to the main fuel stream at an intermediate region of the pump whereby it is redissolved. An oil cooler or the like can be arranged between the pumps 12, 16. The ejector pump has a removable throat element 36 so that its flow characteristics can be altered.