baber/WOPTO huggingface dataset:
Patent GB-393651-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/04
Filed: 1931-12-11
Abstract: 393,651. Cathode-ray and R÷ntgenray tubes. DOERING, U. W., 56, Niebuhr Strasse, Charlottenburg, Berlin. Dec. 11, 1931, No. 34370. Convention date, Dec. 13, 1930. [Class 39 (i).] The cathode is arranged so that the electronemitting portion is not influenced by the magnetic field due to current in the cathode, and shields are provided for screening the space containing the deflecting electrodes from the field due to the controlling electrode. As shown in Fig. 1, the end 22 of a loop 21 of tungsten is coated with copper or nickel and with barium oxide or other emitting material, and is pressed so that the point is shortcircuited on itself, or so that the coatings on the parts of the loop touch each other ; or the point 22 may consist of a rod or plate attached to the end of the loop. The parts 21 may be twisted to form a closed loop. As shown in Fig. 5, an emitting rod or plate is attached to a single straight heating wire or ribbon, or to two crossed wires or ribbons. In other arrangements, (a) four wires are welded together to form an activated point, (b) two hairpin cathodes are arranged close to one another, the wires crossing at the bends, and (c) two wires 21, Fig. 11, drawn to a point 22, are attached to frames 31, 32. The emitting portion may be closely surrounded by a helix or cylinder maintained at a negative potential to concentrate the beam, or at a positive potential to compensate the space charge. In order to screen the space containing the deflecting electrodes 50, Fig. 12, from the field of the control electrode 41 acting through the aperture in the anode 33, the deflecting space is surrounded by a conducting screen 35 which may be connected with the electrode 33 through a resistance or condenser, and a conducting liquid 38 is interposed between the fluorescent screen 34 and a glass plate. The screen may consist of metal foil or metal on graphite, and may be transparent. A similar screen may be arranged on the inner surface of the tube. As shown in Fig. 15, a helical control electrode 47, mounted around the emitting portion, is surrounded by a cylindrical shield 44 and is connected with one end of a transformer secondary 46, the other end of which is connected with the anode 33, so .that the anode and grid potentials are in opposite phase, the cathode being connected with a tapping 48 ; or the anode and cathode connections may be transposed. By this means the field due to the control electrode is compensated. A shield 36 may be arranged around the tube and surrounding the control electrode. The screen 34 is arranged at an angle and is viewed through a transparent part of the screen 39. Electromagnetic shields, such as thick iron plates or cylinders, or iron shavings or powder, may be used. Specification 360,654 is referred to. The Specification as open to inspection under Sect. 91 comprises also the use of the tube as a R÷ntgen-ray tube. This subject-matter does not appear in the Specification as accepted.
Patent GB-486964-A (GB)
Title: Process for the conversion of alkali metal chlorides into carbonates and for producing acetic anhydride
IPC: C01D7/00
Filed: 1936-12-15
Abstract: Alkali metal, e.g. sodium bicarbonates and acetic anhydride, are obtained by reacting alkali metal acetates with carbon dioxide in the presence of water while the temperature is maintained sufficiently low to delay or prevent the decomposition into acetic acid of the acetic anhydride formed.  During the course of the reaction, the system may be gradually cooled to a temperature of from -10 to -20 DEG  C. With concentrated solutions the bicarbonates separate by precipitation; or the acetic anhydride can be recovered from its admixture with the alkali metal carbonate solution by means of a centrifugal separator while maintaining the low temperature.  After the separation of the precipitated alkali metal bicarbonate, the temperature of the remaining mixture of bicarbonate in solution and acetic anhydride may be raised whereby the acetic anhydride is changed into acetic acid and the remaining bicarbonate is changed into acetate.  The acetic acid may be used to carry out the cycle according to the parent Specification, i.e. by reacting it with lead hydroxide to form lead acetate which is used in the preparation of further alkali metal acetate.  Preferably the carbon dioxide is employed at a pressure approaching its critical pressure and the mass is agitated during the reaction.  Specification 480,953 is referred to.ALSO:Acetic anhydride is obtained by reacting alkali metal acetates with carbon dioxide in the presence of water while the temperature is maintained sufficiently low to delay or prevent the decomposition of the acetic anhydride into acetic acid.  During the course of the reaction the system may be gradually cooled to a temperature of from -10 to -20 DEG  C.  The acetic anhydride may be recovered from its admixture with alkali metal bicarbonate solution by means of a centrifugal separator while maintaining the low temperature.  Preferably, the carbon dioxide is employed at a pressure approaching its critical pressure and the mass is agitated during the reaction.
Patent GB-916190-A (GB)
Title: A process for the anodic surface treatment of zirconium, hafnium and their alloys
IPC: C25D11/26
Filed: 1961-09-26
Abstract: 916,190. Fuel elements. ATOMENERGI A.B. Sept. 26, 1961 [Sept. 27, 1960], No. 34460/61. Class 39 (4). [Also in Group XXXVI] Fuel rods for atomic reactors comprise tubes of an alloy of zirconium with 1.5% tin which contain fissionable material. The rods are anodized and may then be oxidized in steam at an increased temperature and pressure to produce a corrosion-resistant oxidic film.
Patent GB-345132-A (GB)
Abstract: 345,132. Calculating-apparatus. MATHYS, A. W., 52, Chancery Lane, London.-(Monroe Calculating Machine Co. ; 555, Mitchell Street, Orange, New Jersey, U.S.A.) April 22, 1930, No. 12425. [Class 106 (i).] Keys.-In order to indicate readily which keys are set, portions of the key-heads are of the same colour as adjacent portions of the keyboard so as to merge visually therewith when the keys are in one position and to be visually distinguished therefrom when the keys are in another position. The invention is illustrated as applied to a Monroe machine. In one form, Fig. 2, the key-heads 18 are white and have white discs 21 formed below them. The keyboard plate 20 is also white and has openings to accommodate the discs 21, the key-heads and discs thus normally visually merging with it, but when a key is depressed a dark circle 23 shows around the white key-head 18. In the second form, Fig. 3, no disc is provided, the keyhead 18<1> fitting into the hole in the plate 201. The main portion of the plate 20<1> is white, as are also the sides of the key-heads, but the tops of the key-heads are red and a red ring 24 is painted around the hole through which the key-head is depressed.
Patent GB-776544-A (GB)
Title: Method for the continuous compacting of powdered metallic materials
Inventor: EVANS PETER ERIC
IPC: B22F3/18
Filed: 1953-12-11
Abstract: 776,544. Rolling metal powder into sheet or strip form. NATIONAL RESEARCH DEVELOPMENT CORPORATION. December 10, 1954 [Dec. 11, 1953], No. 34541/52. Class 87(2). [Also in Groups XXII and XXX] Metal powder at room temperature is fed continuously to the bite of a rolling mill in which the roll axes lie in a substantially vertical plane, to form a continuous sheet or strip of metal. The bite or roll gap may be pre-set, or the rolls may be normally in contact but subjected to pressure. The drawing shows two rolls 1, 2, one above the other, and a hopper 3 having an inclined shoot 4 down which the powder slides to the roll gap. The shoot has lateral confining walls 9, 10, and may be closed in by a cover plate. The lower end portions of the walls 9, 10 conform to the profiles of the rolls and the junction is sealed with felt strips 11, 12. A felt seal 13 extending across the whole width of the shoot prevents loss of powder backwards over the lower roll. The shoot is vibrated by an electro-magnetic device 14. Two gates 6, 7 extend the full width of the hopper. Gate 6 pivots on a horizontal axis and may be locked in any desired feed aperture setting by a nut 8. Gate 7 is slidably disposed in vertical slots and is used to start and stop the flow of powder. The rolls may be smooth or rough and may have a positive or negative camber. By incorporating in the powder' materials which dissociate on subsequent heating porous metal sheets may be produced. Mixtures of metals or metal with non-metallic materials may be used. The sheet or strip may be passed through one or more sintering, cooling and annealing zones, with further rolling if desired.
Patent GB-1372357-A (GB)
Title: Vehicle road wheels
IPC: B60B5/02
Filed: 1971-07-23
Abstract: 1372357 Moulding wheels DUNLOP HOLDING Ltd 3 Nov 1971 [17 Nov 1970 23 July 1971] 54521/70 and 34553/71 Heading B5A [Also in Division B7] A vehicle road wheel comprises a body 1 and rim 2 formed from a cellular rigid plastics core 4 enveloped in a skin 5 of plastics material. A reinforcing element, e.g. a steel disc 3, may be embedded at least partly, in the body 1, the element being secured to the core 4 by mechanical locking (e.g. by the provision of holes 8 forming a key for the core material) or by bonding, or being bonded on one surface to the skin 5. A hub cover 9 and radial reinforcing ribs 7 may be formed on the wheel and holes 6 may be provided for mounting the wheel. The core 4 may be made of injection mouldable material (e.g. an ABS copolymer, a polyurethane, a nylon, a polyethylene, or polypropylene), or castable material (e.g. a polyurethane, an unsaturated polyester or an epoxy resin). The skin 5 may be made of injection mouldable material, (e.g. an acetal polyamide, a polyphenylene oxide, a polycarbonate, a polysulphone, a polyurethane, or polypropylene), which may be fibre reinforced, or may be formed from a material suitable for skin production using lay-up techniques, e.g. a fibre reinforced polyester or epoxy resin, the fibres in the skin material being glass, carbon, boron, asbestos or metal.  The wheel may be made by an injection moulding process in which the core material is injected into a first mould defining the core and allowed to set; the core is removed from the first mould and supported in a second mould which defines the shape and dimensions of the skin; and finally the skin material is injected and allowed to set. Alternatively the wheel may be made by casting or injecting the core material into a first mould; removing the core when set and placing it in a second mould which has had a layer of skin material applied to its bottom by lay-up or spray techniques; applying a further layer of skin material to cover the remainder of the core; and finally moulding the whole assemblyunder pressure until the skin has cured. In both of the above processes the reinforcing element, if required, is placed in the first mould prior to casting or injection of the core material. The wheel may be made in one piece as shown by Fig. 2, or may be made in two annular halves which are subsequently joined together. Several specific examples of the second of the abovedescribed processes, as applied to the production of wheel halves, are given in the Specification.
Patent GB-1279515-A (GB)
Title: Method and apparatus for monitoring of pulse spacing
IPC: A61B5/0245
Filed: 1970-07-17
Abstract: 1279515 Monitoring the durations of adjacent  intervals in a pulse train POLSKA AKADEMIA NAUK INSTYTUT AUTOMATYKI 17 July 1970  [31 July 1969] 34673/70 Heading G1U In order to obtain a visual indication of the way in which successive intervals between adjacent pulses of a pulse train are varying in duration, each interval in converted into a corresponding amplitude significant signal, and the amplitude significant signals corresponding to pairs of adjacent intervals are applied to the x and y plates of a c.r.t. via a change over switch in such a way that the earlier interval of a pair always determines the x displacement, and the latter interval the y displacement. This, if the intervals are all of the same duration a spot will occur on the c.r.t. screen on the line y=x, and the distance of the spot from the origin will vary inversely with the frequency of the pulse train. If the intervals between the pulses progressively increase or decrease in duration, the spot will rise above or fall below, respectively, the line y=x. As described the incoming pulses 1, Fig.1 are shaped and applied to an interval duration-to-amplitude converter 5. The resulting amplitude significant pulses pass first via a gate 12, and then alternately via gates 13 and 14, controlled by a trigger 4, to storage devices 7 and 8. These stores in turn, via a change over switch 11 control a c.r.t. 17. Bright-up pulses are applied to the cathode of the c.r.t. in synchronism with the incoming pulses from an amplifier 3. Immediately after a bright-up pulse, the storage device 7 or 8 then storing the signal corresponding to the earlier of the two intervals is cleared by a pulse from a delay circuit 6, one of two gates 15 and 16, and one of two shaping amplifiers 9 and 10.
Patent GB-738477-A (GB)
Title: Seat construction
IPC: A47C4/18
Filed: 1953-12-14
Abstract: 738,477. Seats; resilient upholstery. LIL. JENGREN, C. P. Dec. 14, 1953 [Dec. 23, 1952], No. 34724/53. Classes 52 (2) and 52 (4). A vehicle or aircraft seat has a tubular steel frame including arm-rest structures 7 held in spaced relation by rods 19, 25, a tube 20 held parallel to rod 19 by struts 21 and a reclinable back including members 51, 52 having crooked ends and pivotally connected to the main frame by a bolt 69 and bolts through pivot bushings 17 in housings 16 welded to the frame, the frame supporting resilient aluminium strip members 100, 101, 108, 109, 110, 111. The seat strips 100, 101 have hooked slotted ends 1021 engaging the bar 20 and held in spaced relation by spacers 118 in the slots and the other ends are attached to rear member 25 by springs 119 hooking into holes 106 in the strips. Back strips 108, 109, 110, 111 are riveted to cross-member 53 and are secured at their lower ends to the seat strips by springs 120. Foam rubber or other padding and suitable fabric covers the frame and strips.
Patent GB-425887-A (GB)
Title: Improvements in electric fuses
IPC: H01H85/157
Filed: 1934-12-03
Abstract: 425,887. Fusible cut-outs LIGHTFOOT, S. L., (trading as STANDARD FUSE CO.), Queens way Works, Ponders End, Middle sex. Dec. 3, 1934, No. 34753 [Class 38 (i)] In cartridge fuzes that are manu factured by threading casings a with metal end caps b onto a con tinuous length of fuze wire, solder ing the wire to the caps and then separating the cartridges by break ing the wire, the end caps are pro vided with lateral nicks into which the wire is folded before soldering so that the operation of breaking the wire does not disturb the joint
Patent GB-636186-A (GB)
Title: Detachable wear members for tension devices used in winding and other textile machines
IPC: B65H59/28
Filed: 1946-11-22
Abstract: 636,186. Thread tensioning arrangements. TURCOTTE, J., and UNION SCREEN PLATE CO. OF CANADA, Ltd. Nov. 22, 1946, No. 34777. [Class 120 (ii)] A thread tensioning device having a plurality of contact bars arranged 'in rows has surface clips detachably clamped on to the bars to act as wear members which may be replaced when they become cut by the thread. A gate tension device has its contact surfaces covered by clips 13, which have side flanges to clamp on to the bars 11. The clips 13 have recesses formed on their underside which engage with bosses on the bars.
Patent GB-811000-A (GB)
Title: Improvements in and relating to grinding machines
Inventor: WYLDE STEPHEN JACK
IPC: B24B9/14
Filed: 1957-11-07
Abstract: 811,000. Grinding. TAYLOR (HOLDINGS) Ltd., J. & H. Nov. 7, 1957, No. 34788/57. Class 60. The drive to the grinding wheel W of a machine for grinding the edges of lenses is transmitted from a driving sleeve 7 to a sleeve 8 on which the grinding wheel is carried, both sleeves being rotatablymounted on a stationary spindle 1. The spindle is supported by brackets 2, 3 on a base B and, at one end, supports the beltdriven sleeve 7, which is rotatably mounted in bearings 9, in an upstanding bracket 6, and, at the other end, supports the rotatably-mounted sleeve 8 which carries the grinding wheel W and is axially-floating against a spring 30 bearing against an adjustable collar 27 on the spindle. The drive .between the sleeves is transmitted by means of a crank 17 on a member 16 secured to the sleeve 7 engaging a slot 18 in a member 20 secured to the sleeve 8. Guard plates 23, 24 prevent coolant and glass particles reaching the bearing surfaces of the sleeve 8 and are provided with clearance or sliding fit holes to permit axial movement of the sleeve 8. Specification 808,329 is referred to.
Patent GB-1186771-A (GB)
Title: Silicious Products
Inventor: ABBOTSON WILLIAM
IPC: C08G18/38
Filed: 1967-05-12
Abstract: 1,186,771. Silicious products. CONTEKI DEVELOPMENTS Ltd. 25 April, 1968 [12 May, 1967; 28 July, 1967], Nos. 22190/67 and 34884/67. Headings C3C, C3N and C3R. Silicious products are prepared by reacting an aqueous solution of an alkali metal silicate with an organic isocyanate or isothiocyanate. The isocyanate or isothiocyanate is preferably a polyisocyanate or polyisothiocyanate and more preferably is 4,4<SP>1</SP>-diphenylmethane diisocyanate or a tolylene diisocyanate. It is preferred to use sodium silicates of formula Na 2 O.SiO 2 , wherein the Na 2 O: SiO 2  ratio may be from 1À6 to 3À3. The reaction may be carried out in the presence of a catalyst, e.g. a tertiary amine or an organometallic compound. The reaction conditions may be such as to produce cellular products by the evolution of carbon dioxide. Conventional blowing agents and surfactants may be added to the reaction mixture to assist in the foam production. Polyols may also be added to the reaction mixture, as may polymers and fillers in fibrous or particulate form. The filler materials may be sand, alumina, alumino-silicates, magnesia, metal fibres, asbestos, glass fibre, rock wool, aluminosilicate fibres, calcium silicate fibres, wood flour, coke, paper pulp, cotton waste, cotton jute, sisal, hemp, flax, rayon, or synthetic fibres such as polyester, polyamide and acrylonitrile fibres. The particulate material may also comprise ingredients which react together exothermically when ignited, e.g. aluminium, oxidizing agent therefor alone or together with a particulate refractory material. In the case of foamed products a non-foamed surface layer may be provided by defoaming the surface during manufacture or by providing the foamed material with a facing layer. Foundry moulds and cores may be prepared by incorporating sand into the reaction mixture.
Patent GB-1383118-A (GB)
Title: Sterilising agent
IPC: A01N59/00
Filed: 1972-07-26
Abstract: 1383118 Sterilizing composition PETTIBONE LABORATORIES INC 26 July 1972 [17 April 1972] 34982/72 Heading A5E A sterilizing composition comprises a solution (preferably aqueous) of chlorine dioxide and a quaternary ammonium salt of formula: wherein R 1  and R 2  are C 1-8  alkyl, R 3  and R, are C 1-3  alkyl and X is an anion, e.g. Cl or Br. The composition may include an emulsifier and a stabilizer, and is suitable for cold sterilization of hard surfaces.
Patent GB-799310-A (GB)
Title: Process for removing carbon monoxide from gaseous mixtures
IPC: C10K1/12
Filed: 1955-12-06
Abstract: Carbon monoxide is removed from gas mixtures by absorption with aqueous solutions containing ammoniacal copper compounds in the presence of at least one monohydric or polyhydric aliphatic alcohol containing only the alcoholic function, which is soluble in the solution under the operational conditions, e.g. methyl or ethyl alcohol, glycol or glycerine, Catalytic ammonia synthesis gas (H2 + N2) containing say 4 per cent CO may be washed with a solution containing per 100 g. solution 10-11 or 11-12 g. total copper, 2.25 or 2.5 g. bivalent copper, 6.5 or 7 g. formic acid, and 10-11 or 11-12 g. ammonia admixed with 10-20 per cent mono-ethylene glycol, to produce a gas containing 5-20 cc. CO per normal cu. m.  The washing may be at 6-30 atm., e.g. 12 atm, and 0-3 DEG  C. with a liquid-gas ratio of 1/250 . Pressures of 80-200 atm. may, however, be used and temperatures below 0 DEG  C. due to the freezing point depression of the alcohol addition.  The washing solution may be regenerated by heating, e.g. at 75-80 DEG  C. or by vacuum.
Patent GB-1068852-A (GB)
Title: Improvements in and relating to electrical control devices
IPC: H02P7/295
Filed: 1964-08-27
Abstract: 1,068,852. Automatic current control. LE MATERIEL ELECTRIQUE S.W. Aug. 27, 1964 [Aug. 27, 1963], No.35158/64. Heading G3R. A D.C. motor 1 is supplied through a rectifierinverter 2 which is controlled by a phase-shift circuit 6 associated with an amplifier 7 having an integral-proportional action. This amplifier receives a reference current signal e which changes as a function of time to enable the rateof-change of armature current to be regulated. The amplifier 7 also receives a current signal es which is derived from detector 5 in the armature circuit and is smoothed by a device 8. An amplifier 9, having integral action, provides the signal e. An amplifier 10, having proportional action, detects the error between reference current Io and armature current signal Is, the error signal being smoothed and amplified for application to the amplifier 9. The value of the error signal at which the amplifier 10 saturates is adjustable to regulate the rate at which the armature current varies.
Patent GB-1476459-A (GB)
Title: Light projectors
IPC: F21Y103/00
Filed: 1974-08-09
Abstract: 1476459 Lighting fittings SIEMENS AG 9 Aug 1974 [10 Aug 1973] 35285/74 Heading F4R A light projector includes a trough-shaped reflector 1 made of sheet-form material which is mounted between two side members 2, 3, each having respective integrally preformed mounted channels 4 which define the required axial end cross-sections for the reflector and in which the respective axial ends of the reflector 1 are fitted by bonding. The mounting channels 4 are integrally formed with the cast light metal side members 2, 3 with the reflector, which may be parabolic, bonded therein by welding, soldering or, preferably, adhesive bonding in which case the channel walls are of different heights to facilitate introduction of the bonding agent. The side walls may also include fillets 5 to enable a lamp holder 6 to be adjustably mounted in screw holes 7a-7d, and side reflectors may be screwed to bosses 8 in the side walls. The axially extending lamp 15 may be a halogen incandescent lamp or a discharge lamp having a power supply and firing unit mounted in a housing 17 which is also mounted in preformed channels 16 in the side walls. Further channels 21 at the edge of the side walls may accommodate other housing members. A duct 18 is provided between the reflector compartment and supply unit for the passage of connecting conductors 19.
Patent GB-825464-A (GB)
Title: Improvements relating to pipe expansion compensators
Inventor: MARTIN LEONARD CHARLES HENRY
IPC: F16L51/02
Filed: 1957-11-13
Abstract: 825,464. Expansion joints. POWER FLEXIBLE TUBING CO. Ltd. July 14, 1958 [Nov. 13, 1957], No. 35373/57. Class 99(1). A pipe expansion compensator comprises two metal bellows 1 interconnected by an intermediate pipe section 2 and having two end flanges 3 for connection in a pipe line, and four tie-rods 4 in which pins 5 extend radially from midway of the length of the pipe section 2 into elongated holes 6 in the tie-rods which extend between and are articulated to the flanges 3 so as to permit deflexion of the compensator laterally in two planes at 90 degrees to each other, as well as axially and, at the same time support the pipe section 2 and the bellows 1. As shown, the ends of the tie-rods 4 have elongated holes 7 with flared seatings 8 for the part-spherical facings of nuts 9 threaded on studs 10 projecting from the flanges 3 through the holes 7. In a modification, not shown, the tie-rods are secured by studs between pairs of lugs on the flanges 3.