baber/WOPTO huggingface dataset:
Patent GB-435690-A (GB)
Title: Improvements in and relating to cathode ray tubes
IPC: H01J29/82
Filed: 1934-03-26
Abstract: 435,690. Cathode-ray tubes. BROADWAY, L. F., 9, King's Avenue, Ealing, TEDHAM, W. F., 267, Woolwich Road, Abbey Wood, both in London, and NICOLL, F. H., 24, Basildene Road, Hounslow, Middlesex. March 26, 1934, Nos. 7597/35 (divided out of 437,594), and 35296/34. [Class 39 (i)] The deflecting plates and the successive apertured electrodes of the electron gun are mounted in fixed relationship by means independent of the pinch and are inserted as a unit into the envelope of the tube, this unit including a collar frictionally engaged with the envelope as by clamping about the pinch. A cathode-shield 14, an accelerator 15, a modulating electrode 16 negative with respect to the cathode 43 and a first anode 17 are supported on rods 18 as described in Specification 437,594. A second anode 42 supported by the ends of the rods 18 itself supports an insulator 48 carrying the deflecting plates 45, 46 on brackets 49, 54. The insulator 48 comprises a plate 47 and an apertured boss sliding over the anode 42, and is of steatite baked in a vacuum furnace to harden it and remove occluded gases. The rods 18 extend from a collar 19 clamped about the pinch 12 supporting the cathode 43. The mica discs 32 supporting electrodes from the rods 18 may co-operate with the envelope of the tube to locate the electrodes centrally. An electrode 44 is connected to the anode 42 and surrounds the plates 45, 46. In modifications, the deflecting plates are supported by an insulator from the anode 17, or four rods 18 are used and are extended each to carry at its end an insulator supporting a deflecting plate. Specification 417,182 also is referred to.
Patent GB-634853-A (GB)
Title: Improvements in or relating to injection moulding machines
IPC: B29C45/20
Filed: 1947-03-19
Abstract: 634,853. Injection-moulding machines. ANDERSON, D. March 19, 1947, No. 7602. [Class 87 (ii)] The nozzle end 6 has a plain shank 5 which is received in a bore 4 in the nozzle body 1, and has a flange 7 engaged by a shoulder 9 on a clamping ring 8, the ring being threaded on to the nozzle body and clamping the nozzle end against the body. A sealing ring 11 is provided between the shank and the body to prevent leakage of moulding material. The clamping ring and the body are of the same diameter, thus providing a continuous seating surface 10 for an electric heater.
Patent GB-179374-A (GB)
Title: Improvements in and relating to collapsible figures or models
IPC: G09F1/06
Filed: 1921-03-10
Abstract: 179,374. Bontems, O. J. March 10, 1921. Card and like stands.-A display device comprises a collapsable base of cardboard &c. having connected thereto a strip of steel 1 &c. to support a model or figure A. The base is composed of two pieces shaped and scored as shown in Fig. 1, the two portions 7 being folded at right-angles to the parts 6, which form the platform, and secured together with the strip 1 and an extension 10 of the figure A between them. The parts 4 are also folded down, the parts 3, 4, 5 forming an outer polygonal wall for the stand, the outer end of the parts 3 and 5 of each section being connected. The device may be collapsed by raising or lowering the figure A.
Patent GB-313218-A (GB)
Title: Improvements in bottle sealing capsules
IPC: B65D41/62
Filed: 1928-03-13
Abstract: 313,218. Wilkinson, T., and Haig & Co., Ltd., J. March 13, 1928. Capsule closures. - A bottle capsule a of soft metal is provided with one or more removal tabs c extending from the lower edge thereof. Weakenings or perforations d may extend from either side of the tab towards the top of the capsule.
Patent GB-609395-A (GB)
Title: Navigational instruments for indicating directions in azimuth
IPC: G01C17/00
Filed: 1946-03-13
Abstract: 609,395. Magnetic compasses. SQUARE D CO. March 13, 1946, No. 7790. Convention date, March 24, 1945. [Class 97 (ii)] A direction indicator and course setter comprises a compass rose 39 attached by diametrical arms 40, 41, one of which 40 is formed as a N-S pointer, to a spindle (not shown, driven through bevel gearing and a follower magnet from the N seeking element of a liquid magnetic compass. The lubber line 45 and an angular scale reading to 180 degrees on both sides of the lubber line are carried by fixed ring 38 surrounding the rose 39. A disc 26 with parallel arrows 44 and a window 42, through which the graduations on a fixed azimuth scale 25 may be viewed, is manually adjustable by means of knob 35 in accordance with the course it is desired to follow.
Patent GB-1007356-A (GB)
Title: Improvements in or relating to ingot moulds of nodular iron or cast steel
IPC: B22D7/06
Filed: 1963-02-27
Abstract: 1,007,356. Ingot moulds. GUTEHOFFNUNGSHUTTE STERKRADE A.G. Feb. 27, 1963 [May 2, 1962], No. 7799/63. Heading B3F. In an ingot mould of nodular iron or cast steel the ratio of the wall thickness at the corners of the mould to that at the centre of the side walls is less than 0À83, and preferably between 0À4 and 0À8.
Patent GB-238504-A (GB)
Title: Improvements in or relating to distant liquid level indicating apparatus
IPC: G01F23/16
Filed: 1925-03-23
Abstract: 238,504. Guichard, L. Aug. 13, 1024, [Convention date]. Indicators actuated by pressure of head of liquid.-In apparatus for indicating liquid level at a distance, the pressure necessary to force air into the liquid at the bottom of a tank is communicated to a liquid manometer. The tank 2 is provided with a tube 1 opening at the bottom into a small vessel 3 containing glycerine or mercury, and provided with a diaphragm 4 which is pervious to the liquid b but not to the liquid a. Another diaphragm 6 is pervious to air and to the liquid b. The tube 1 is connected by a pipe 7 to a pump 8 having a spring piston 9 carrying a rod 11 and a valve closing the port 13. The chamber 15 contains a piston valve 19 controlling a duct 22 which places the ports 16, 17 in communication. The manometer comprises a chamber 20 connected to a flat gauge vessel 23 containing glycerine. The chamber 23 is provided with a glass front 24, the outline of which corresponds to that of the tank 2, e.g. a petrol tank, so that the quantity of liquid in the tank may be estimated. When the piston 9 is pulled out and then released, it forces air through the pipe 7 into the liquid b until the rod 11 reaches the piston 19 and pushes it back to uncover the duct 22. The pressure of the air is then communicated to the gauge 23, and the level, with any subsequent variation, is indicated continuously. Specification 232,931 is referred to.
Patent GB-217648-A (GB)
Title: An improved coating machine
IPC: G03D15/00
Filed: 1923-03-20
Abstract: 217,648. Henderson, W. A., and Dobson, C. F. March 20, 1923. Drying materials in long lengths.-A kinematographic film 2, coated with protective substance by a pad 3, is dried during passage over a series of staggered rollers 37. The drying is facilitated by the provision of electric lamps a.
Patent GB-1024683-A (GB)
Title: Improvements in or relating to cleaning bottles or the like
IPC: B08B9/28
Filed: 1964-02-26
Abstract: 1,024,683. Spray-producers; cleaning nozzles. HOLSTEIN & KAPPERT MASCHINENFABRIK PHOENIX G.m.b.H. Feb. 26, 1964 [Feb. 28, 1963], No. 7948/64. Heading B2F. In a machine in which bottles are washed through being placed neck downwards over upwardly directed spraying nozzles 3 each of these nozzles is cleaned when necessary by jets of cleaning fluid issuing from downwardly directed nozzles 9 mounted on a carriage 5 movable along and over the tube 1 from which the nozzles 3 project. The carriage incorporates rollers, four of which are provided on each side for engagement with the upper and lower surfaces of a flange 4 extending above, and laterally of, the tube 1. Each nozzle 3 embodies a dirt collecting filter 15. During the cleaning operation a stopper 2 is removed from the end of the tube 1 and the carriage is moved there along until every nozzle 3 has been 'blown'.
Patent GB-651289-A (GB)
Title: Radio apparatus
IPC: H03J5/30
Filed: 1948-03-19
Abstract: 651,289. Radio receiving apparatus. PHILCO CORPORATION. March 19, 1948, No. 8242. Convention date, March 22, 1947. [Class 40 (v)] In a switch-tuning arrangement particularly applicable to television receivers, a movable switching-device carries a plurality of reactive circuit means, each arranged to tune the receiver to a selected broadcast station, and also selectively couples to the receiver one of a plurality of aerials of different operating characteristics in predetermined relation to the station selected. As shown in Fig. 1, the coil turret 10, 11 may be rotated by the control knob 15 to connect the appropriate coils in the circuits of the R.F. amplifier 27, the local oscillator 28, and the first detector 29, additional contacts being provided to connect either of the aerials 25, 26, differing in resonant frequency or orientation, with the corresponding coupling coil 35 or 30. Fig. 2 shows the construction of the coil turret, eight sets of coils being mounted inside the octagonal drums 10, 11, which are attached to a spindle 12 carried in slots in the end plates 48a, 48b, of the housing, the housing being divided by a central member 50 which is also slotted to take the shaft. Retaining plates 51, 52 apertured to take the shaft 12, are secured to the end walls 48a, 48b, by screws 53, the plates having elongated holes so that the pressure of the switch contacts 22, 23, may be adjusted. Each coil with its contacts is held in position in the drum by spring clips and is easily removable, the coil cores being adjustable through apertures in the end wall of the drum. The shaft 12 is located at each position by a cam member having eight detent areas and co-operating with a roller attached to a spring-urged lever.
Patent GB-980588-A (GB)
Title: Improvements in or relating to motion-picture camera lens mount
IPC: G03B3/02
Filed: 1963-03-01
Abstract: 980, 588. Lens mounts. A. C. COUTANT, and J. MATHOT. March 1, 1963 [Oct. 24, 1962], No. 8252/63. Headings G2A and G2J. A motion-picture camera lens mount comprises a supporting member, as shown, arranged to be fixed in to the camera by screws passing through holes 3 in flange 1, said member being screw threaded for the attachment of conventional lens units and is completely truncated in sectors 4, 5 and partially truncated at adjacent sectors 7, 8 in the screwing direction to permit the fitting of a bayonet type lock lens unit provided with corresponding lugs. The sectors and the corresponding lugs may be of such dimension that the lens unit can only be fitted in one position.
Patent GB-1392521-A (GB)
Title: Selective multi-stage leaching process
IPC: C01G49/14
Filed: 1972-02-23
Abstract: 1392521 A selective backing process for iron P J McGAULEY and A A DOR 23 Feb 1972 [13 April 1971] 8263/72 Heading C1A A selective multi-stage leaching process for the extraction of acid-reactive iron from iron sulphide mineral feed, and for the production of a high purity solution of ferrous sulphate comprises (a) contacting the iron sulphide mineral feed with sulphuric acid at sufficient concentrations and temperature to initiate and produce with a high rate of reaction a high density slurry that contains residual solids from the mineral feed in a solution that is substantially saturated with ferrous sulphate and contains crystals of FeSO 4 , and a gas that contains H 2 S and water vapour, (b) diluting the high density slurry and contacting the diluted slurry with H 2 S thereby dissolving the crystals of FeSO 4  and causing the reaction of the remaining acid and impurities in the solution with acid soluble iron from the mineral feed and H 2 S respectively to complete the leaching in a second stage, (c) separating the purified solution that is substantially saturated with ferrous sulphate and the gas from the solids at a temperature between 80- 50 C. as products. It is preferred to carry out stage (a) in two sub-stages in the first of which a high initial concentration of sulphuric acid is used to promote a high rate of reaction and in the second of which the reaction is continued to produce the high density slurry for stage (b). Two variants of the multi-stage leaching process are described, viz the co-current and currentcurrent processes, whereby in the former the amount of acid added in stage (a) is equal or approximately equal to that required to react with the acid-soluble iron present and in the latter the acid content in stage (a) is insufficient to react with all the acid-soluble iron in the mineral feed and further acid has to be supplied at a later stage.
Patent GB-541076-A (GB)
Title: Improvements in and relating to the production of hydrocarbons of high molecular weight
IPC: C08F10/00
Filed: 1940-05-08
Abstract: 541,076. Polyisobutylene. SCOTT, W., SNOWDEN, F. F., SYKES, P. H., WHITEHEAD, W., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 8, 1940, No. 8270. Drawings to Specification. [Class 2 (iii)] In a process for producing high molecular weight polymers from isobutylene by subjecting it in a polymerization zone to the action of a polymerization catalyst at low temperatures produced by evaporation of solid carbon dioxide, the method of introducing solid carbon dioxide in a finely-divided state into the polymerization zone, which comprises passing liquid carbon dioxide into a vessel through a pressurereducing device, and introducing the resulting finely divided carbon dioxide, without bringing it into contact with the atmosphere, into the polymerization zone. The pressure-reducing device may discharge directly into the liquid reactants, into the space above them, or into a vessel communicating with the reaction vessel. The liquid carbon dioxide, prior to its pressure release, may be mixed with the isobutylene and/or any liquid to be used as a diluent or solvent for the reaction, or with polymerization catalyst with or without liquid to be used as a diluent or solvent in the reaction. The temperature of the reaction zone, and hence the molecular weight of the polymers, may be controlled by adjusting the partial pressure of the carbon dioxide in the reaction zone.
Patent GB-1179686-A (GB)
Title: Method and Apparatus for Making Paper
IPC: D21F11/04
Filed: 1967-02-21
Abstract: 1,179,686. Papermaking. BLACK CLAWSON CO. 21 Feb., 1967 [21 Feb., 1966], No. 8280/67. Heading D2A. A multiply web is formed progressively from papermaking stock in an apparatus comprising several forming wires (15, 22, 33 and 44), rolls supporting the wires to form downward runs arranged in vertically staggered and closely spaced opposed relationship to form several downward forming zones, means such as headboxes 50, 70 and 70a to deliver stock to the upper end of each forming zone, means such as deflectors 60 for removing liquid to form a web ply in each forming zone, means such as suction boxes 66 and 83 for directing the web formed in each zone to one side of the next zone to combine with the stock received therein so that the fibres of each ply mesh with the next and the plies are firmly bonded together. In a modification (Fig. 4, not shown), a backup roll (100) is placed within the loop of the wire 15 and opposite the roll 30, and a similar backup roll opposite each later breast roll. The web is couched on to a felt 95 with the aid of suction chambers 91 and 97 in the rolls 41 and 96. The pulps supplied to the headboxes may be of higher consistency than usual in papermaking, e.g. 0.8% and different pulps may be supplied to the different headboxes. Reference has been directed by the Comptroller to Specifications 931,976 and 1,055,749.
Patent GB-558190-A (GB)
Title: Improvements in or relating to the separation of solid materials of different specific gravities
IPC: B03B5/30
Filed: 1942-06-17
Abstract: 558,190. Wet separating. TROSTLER, F., ANDREWS, T., and HUNTINGTON, HEBERLEIN & CO., Ltd. June 17, 1942, No. 8282. [Class 82 (ii)] In a separation of solid materials in a suspenson of intermediate specific gravity, a supply of liquid of less density than the suspension is introduced into the separating vessel so as to maintain therein a vertical current, which may be an upward current of very low velocity, and a slight density differential from top to bottom of the vessel which may be of the order of 0.01-0.02. The supplementary liquid may be water, or it may be diluted suspension discharged from the top of the separating vessel. The apparatus used may be similar to that described in Specifications 486,771, 538,116, 547,098, and 547,099 with provision of the necessary means for the producton of the vertical current and the admission of the supplementary liquid supply
Patent GB-587122-A (GB)
Title: Improvements in multiple effect evaporators
IPC: C13B25/00
Filed: 1944-05-02
Abstract: <PICT:0587122/III/1> The rate of evaporation in a multiple effect evaporator is automatically adjusted by means responsive to variations in the density of the liquor in or leaving the evaporator, to effect the gradual cutting out or bringing into operation of one or more effects of the evaporator.  Feed liquor is admitted through pipe 2 into the first effect 1 of a quadruple effect evaporator which is supplied with steam through pipe 8 controlled by valve 9. Concentrated liquor is withdrawn from the fourth effect 40 through pipe 5 and passes through a hydrometer 7, or other device responsive to variations in the density of the liquor, to a seal 41 and outlet 42.  The hydrometer 7 is connected through linkage 60 to valve 51 in the passage 52, and effects a gradual cutting out or bringing into operation of the fourth effect.  Vapours may be bled away at 44, 46, 47 for associated processes and, in this case, it is desirable to keep the passage 52 completely closed, if possible.  The by-pass connection 58 with valve 50, controlled by thermostate 59, is incorporated so that the temperatures and pressures of the vapours bled away may be maintained at constant values.  Further control is governed by valve 56 controlled by thermostat 57 and also by hydrometer 7 through linkage 61. Specification 587,121 is referred to.
Patent GB-673662-A (GB)
Title: Improvements in and relating to wet bulb and similar thermometers and scales for use therewith
IPC: G01K1/14
Filed: 1949-03-26
Abstract: 673,662. Meteorological instruments. DARTON & CO., Ltd., F., and CHOKSEY, N. B. March 27, 1950 [March 26, 1949], No. 8300/49. Class 97 (iii). [Also in Group XXXVIII] Apparatus for indicating the probable incidence of frost comprises a wet-bulb thermometer 1 or similar device such as a wet-spring thermometer provided with a datum zone indicator 3 disposed adjacent to the location of the thermometer index, e.g. the top of the mercury thread b<SP>1</SP>, at low temperatures, the datum zone indicator 3 being subdivided by a line 4 or lines so that when the index b<SP>1</SP> is positioned at a time, say half an hour after sunset, in said zone on the high temperature side of the line 4, the fall in the air temperature so registered indicates that local frosty conditions are likely to occur within a short period of time, e.g. after midnight or if on the low temperature side of the datum line, frost is likely to occur before midnight. The index when so positioned may be arranged to close electrical contacts of an alarm circuit (see Group XXXVIII). The reservoir for the water into which the usual wick 8 dips is preferably formed of a resilient and more or less heat insulating material such as moulded rubber contained in a metal socket 6 and closed with a centrally perforated closure.
Patent GB-556502-A (GB)
Title: Improvements in or relating to concentration of ores
IPC: B03B5/52
Filed: 1942-06-17
Abstract: 556.502. Concentrating ores, coal. &c. BUTLER BROS. June 17, 1942, Nos. 8316 and 8317. Convention dates. May 29, ,1941 and March 27, 1942. [Class 82 (ii)] In a method of concentrating mixed materials of different specific gravities and particle sizes. such as ores, coal, &c., the solids and water are continuously fed to an inclined trough concentrator in which the material is continuously agitated and water supplied to work the coarse lighter particles to the surface, discharging such particles through an elevated outlet at the lower end of the trough, and passing the heavier particles up the inclined bottom of the trough to be dischanged therefrom, the rate of feed and discharge being controlled to maintain a mass of material in the lower part of the concentrator containing 55-75 per cent. of solids. If constituents of low density predominate, some relatively high density material may be added, and this may be derived from part of the concentrate or may be foreign material which may afterwards be separated, for example magnetically and returned to the concentrator. In the plant shown, the ore &c., after screening and treatment in a preliminary classifier 20 of conventional form, is passed to a feed box 29 of a concentrator 30 in which a screw conveyer 34 works the ore upwards to a discharge 45, water being supplied through separately controlled inlets 41 to a number of compartments of a tank 38 extending under the lower part of the inclined trough 32 and communicating therewith through perforations 43. The flights 34 carry lifting bars 37 which work the coarser tailings' to the surface. Light material together with same fine ore &c., is carried by the water over a weir 33 which extends half-way across the lower end of the trough at the side to which the material is worked by the flights 34 and bars 37, the other side of the lower end having a baffle 46 at a higher level. The material discharged over the weir 30 may be passed to a screen, 51 from which the fines are returned to the classifier 20; or it may be ground and, after elimination of fine silica therefrom, returned to the concentrator 30. In modifications, the plant may include one or more additional concentrators, the materials discharged from the different machines being distributed, according to their composition and other circumstances, either to waste or final discharge or to other parts of the plant for retreatment. Flow-sheets indicating the distribution in various ways and and for various materials are given in Figs. 13, 14, 15, 16 (not shown).
Patent GB-606086-A (GB)
Title: Improvements in heat exchangers
IPC: F28D19/04
Filed: 1946-03-18
Abstract: 606,086. Heating air and gases. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and MILLINGEN, R. D. VAN. March 18, 1946, No. 8383. [Class 64(i)] A regenerative heat-exchanger, e.g. for heating the cold compressor air for a gas turbine at high pressures by the hot turbine gases at relatively low pressure, comprises a heat-absorbing matrix of discrete elements, e.g. slates X, X<1> &c., Y, Y<1> &c., a high pressure chamber 5, a low pressure chamber 6, and an intermediate chamber 7 or 8, and means for transferring the matrix elements periodically from one pressure chamber to the other through the intermediate chamber without direct communication between the two pressure chambers. The matrix blocks are moved in counterflow to the fluids in the respective chambers by conveyers 9. In the form shown, the intermediate chambers 78 form air locks, closed by vertically sliding gates A, B, C, D; before any of these gates are opened the corresponding chambers are connected by a valve to equalise pressures. In modifications described, a single air lock is employed, or the matrix blocks are contained in two annular chambers separated by an intermediate chamber In the Provisional Specification the use of granular matrix material is described.