baber/WOPTO huggingface dataset:
Patent GB-1034772-A (GB)
Title: Improvements in roof ventilation devices for vehicles
IPC: B60H1/26
Filed: 1965-02-10
Abstract: 1,034,772. Vehicle ventilators. REGIE NATIONALE DES USINES RENAULT. Feb. 10, 1965 [Feb. 12, 1964], No. 5871/65. Heading F4V. [Also in Division B7] A ventilator arranged in the roof 5 of a vehicle comprises a rotatable cylinder 6 having orifices 10 around a quarter or a half of its upper periphery and vanes 11 directing air into the vehicle. According to whether the orifices 10 are directed forwardly or rearwardly air is introduced into or withdrawn from the vehicle interior. An inverted channel section guide 7 is arranged over the cylinder and when the latter has orifices over a quarter of its periphery the ventilator may be closed by turning the cylinder so that the orifices face a side wall of the channel. In a modification, Fig. 4 (not shown), the cylinder may be withdrawn into the vehicle to a position in which the orifices are below the exterior roof surface to shut-off air flow. One ventilator is arranged above each passenger in the vehicle.
Patent GB-415470-A (GB)
Title: Improvements in or relating to mercury arc rectifiers
IPC: H01J13/22
Filed: 1933-02-27
Abstract: 415,470. Mercury-vapour rectifiers. REYROLLE & CO., Ltd., A., Hebburn-on- Tyne, and TAYLOUR, H. H., 15, Portland Terrace, Jesmond, Newcastle-on-Tyne. Feb. 27, 1933, No. 5884. [Class 39 (i).] Deionizing surfaces which are arranged in the neighbourhood of the cathode and extend from the sides towards the centre thereof are so shaped that their deionizing effect is negligible at the centre and increases towards the sides thereof. Radial tapered plates D are secured through lugs and conducting rings E, E<1> to a quartz guide C which dips into the cathode mercury A. The plates may be given a potential with respect to the cathode or the casing and may contain internal ducts through which a cooling fluid is adapted to circulate. In a modification, the plates are curved and arranged parallel to one another so that the distance between any pair of plates is uniform throughout their length. The rectifier may be provided with an anode grid as described in Specification 415,469 and may be used as an inverter.
Patent GB-694253-A (GB)
Title: Manufacture of polymers containing plasticizers
IPC: C08F14/06
Filed: 1951-03-12
Abstract: Self-precipitating polymers or copolymers of vinyl chloride are prepared in an aqueous medium, the vinyl chloride or mixture thereof with another monomer such as vinyl acetate, propionate, butyrate, or benzoate, methyl or ethyl acrylate, methyl, ethyl, propyl, or butyl methacrylate, acrylonitrile, styrene, or compounds of maleic and fumaric acid such as diethyl maleate, being introduced into the aqueous medium simultaneously with a plasticizer at the rate at which they are consumed.  Plasticizers specified are tricresyl phosphate, triphenyl phosphate, dibutyl phthalate, di-(2-ethyl-hexyl) phthalate, di-(2-ethyl-hexyl) adipate, di-(2-ethyl-hexyl) sebacate, polyesters such as those obtainable from propylene glycol and adipic acid, and copolymers of butadiene with acrylonitrile.  When using plasticizers of high molecular weight it is preferred to add a solvent such as acetone or ethyl acetate to the monomer to assist the incorporation of the plasticizer.  The self-precipitating polymers are obtained either by polymerizing in the presence of a water-soluble protective colloid such as polyvinyl alcohol, partially esterified, etherified, or acetalized polyvinyl alcohols, water-soluble salts of polyacrylic and polymethacrylic acids, water-soluble salts of copolymers of maleic acid with styrene or vinyl acetate, gum tragacanth, gelatine, alginates, cellulose ethers, and salts of cellulose glycollic acids, or by using a small quantity of an emulsifying agent, optionally in the presence of an electrolyte. Emulsifying agents specified are salts of sulphonic acids of paraffin hydrocarbons containing 8 to 20 carbon atoms, alkyl-benzene sulphonic acids whose alkyl radicals contain 4 to 20 carbon atoms and their salts, sulphuric acid esters of fatty alcohols of high molecular weight, such as octadecyl sulphate, and their salts, and alkyl-sulphonamido-acetic acids of high molecular weight and their salts.  Suitable electrolytes are sodium and calcium chlorides, and sodium, magnesium, and aluminium sulphates.  The aqueous medium may also contain sodium acetate and acetic acid, and the polymers produced may be in granular form or in the form of fine powders.  Polymerization may be carried out with the aid of catalysts such as hydrogen peroxide, benzoyl peroxide, and azoiso-butyric acid nitrile, and redox systems employing hydrogen peroxide, sodium formaldehyde sulphoxylate, and ferrous ammonium sulphate.  The catalyst may be introduced into the aqueous medium either with the monomer or separately, and when a redox system is employed it is preferred to place the whole amount of one component of the reaction vessel and add the other component during polymerization.  Polymerization may be carried out in a batchwise manner, or continuously by adding and withdrawing the aqueous phase, the monomer, and the plasticizer continuously.  The polymers produced are used to form foils, pipes, and other moulded products.
Patent GB-869663-A (GB)
Title: Improvements in and relating to centrifugal fans
Inventor: BUSQUET JAN CHRISTIAAN
IPC: F04D27/02
Filed: 1958-02-25
Abstract: 869,663. Centrifugal fans. KONINLIJKE MACHINEFABRIEK GEBR. STORK & CO. N.V. Feb. 25,1958,No. 6039/58. Class 110 (1). Two sets of hollow blades 10 for a double inlet impeller of a centrifugal fan, having one or more discharge openings 11 for a pressurefluid, extend between the side walls 6, 7 of the impeller and partitions 8, 9 parallel thereto, the partitions constituting the side walls of a chamber closed at its circumference by an annular wall 15. This chamber is supplied with pressure-fluid and communicates with the interiors of the blades through openings 24. The pressure-fluid is supplied by an auxiliary impeller constituted by blades 12 extending between the partitions 8, 9 and plates 13, 14. The inlet to this auxiliary impeller is constituted by a flat tube 19 secured to a fixed annulus 17 making a fluid-tight seal with the annular wall 15 by means of resilient strips 18. A hinged plate 21 in the wall 20 of the fan casing may be moved to allow air from the fan to pass through guide vanes 23 to the tube 19. Alternatively inlet flaps are provided in the front wall of the tube 19. Specifications 780,464 and 869,662 are referred to.
Patent GB-896863-A (GB)
Title: Improvements in or relating to push-type centrifuges
IPC: F24C5/04
Filed: 1961-02-17
Abstract: 896,863. Centrifugal strainer separators. ESCHER WYSS A. G. Feb., 17, 1961 [Feb. 18, 1960], No. 6057/61. Class 46. In a continuously-operating push-type centrifuge 1, Fig. 1, having an annular trough 7 at the outlet end of the centrifuge drum 3 for collecting the emergent solid material, there is provided at least one blade 10 connected to the centrifuge drum so as to extend into the internal profile of the annular trough. The blade 10, Fig. 4, (one of four) may have its upper edge 12 sharpened as shown so that solid material will not accumulate on it or be deflected by it into the space outside the trough. The blade may be connected so as to swivel about an axis parallel with that of the drum. Alternatively its shape may be modified slightly; or it may be formed of shaped strip or wire; or it may be of rake or brush construction; or it may have a soft edge, e.g. of rubber. In another embodiment three blades are provided, each shaped so as to make contact with only a portion of the trough surface different from that contacted by the others.
Patent GB-113371-A (GB)
Title: Improvements in Aircraft.
Inventor: TURNER ALFRED WILLIAM
IPC: B64C27/04
Filed: 1917-04-30
Abstract: 113,371. Turner, A. W., and Luff, W. F. April 30, 1917. Aerial machines without aerostats; planes, arrangement and construction of.-To the main or upper plane a of an aeroplane is fixed a rooflike structure b surmounted by propellers c having blades adapted to hang down over the sides of the structure b when not in use. In addition, hinged flaps d, normally folded flat against the plane, are adapted to be raised into the position shown by pulling on control cords e to permit the blast from the propellers c to get beneath the plane a. The flaps d are pulled down to close the openings by pulling on cords e' when the propellers c are not in action.
Patent GB-176777-A (GB)
Title: Apparatus for the reproduction on paper of autochrome and other plates in their proper colours
IPC: G03C7/04
Filed: 1922-03-01
Abstract: 176,777. Bueno, E. March 11, 1921, [Convention date]. Colour photography, screen processes for; intensifying.-Relates to a method and apparatus for reproducing a photograph taken on a multicolour screen plate. Three colour-negatives are made from the screen plate by means of filters. From these negatives three bichromated gelatine relief plates are produced which are used to control the application of corresponding complementary colours to sheets of paper to reproduce the original. Each relief plate is in turn positioned in a frame 2, Figs. 1 and 2, on a revolving disc C to actuate an exploring stylus K which is fitted with a microphone 7 and this stylus controls the current through electromagnets controlling three reproducing styli L which operate on sheets R, situated cross wise on the disc C. The styli are mounted on cross arms A supported by an angle arm G and are moved along the arms by threaded shafts I, rotated by a common worm shaft J extending from the spindle D through pinions I<1>. The spindle D carrying the disc C rotates in bearings in the arm G and in the base E and is driven by the clockwork motor F. The styli are only operative when the stylus K moves over the relief plate 2 by means of contacts S. The styli can be connected in series or in parallel with a source of current through the plug P. The colours are produced in the sheets R by superposing on these sheets in turn colour impression sheets of a colour corresponding to the relief plate used, or by powdering the sheets with finely powdered pastel, and removing carefully the surplus powder, after each operation. The colour deposited depends upon the pressure of the styli L which are controlled by the movement of the stylus K over the relief plates. The styli are also adjustable so as to vary the pressure. After the reproduction of one colour the motion of the styli along the arms A is reversed by shifting the motor F by the screw X. The carrier 2 for the relief plate is rotatable and adjustable in two directions at right angles. Registration crosses are produced on the edges of the relief plates and the three plates can be accurately positioned by registering cross wires in microscopes N, O on the angle arm G, one of which is adjustable and set when using the first plate. The registration crosses are marked on the edges of the screen plate by removing a small area of the emulsion and attaching a leaf of gelatine having a registration cross. These crosses are reproduced in making the relief plates and are intensified by treating the edges of the plates first in a hot bath of potassium iodide and potassium bromide, then in a bath of silver nitrate. and finally in an ordinary developer.
Patent GB-399481-A (GB)
Title: Improvements in and relating to power converting apparatus
IPC: H02M7/00
Filed: 1932-02-29
Abstract: 399,481. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Acheson, M. A. ; 1132, Baker Avenue, Schenectady, New York, U.S.A.) Feb. 29, 1932, No. 6105. Convention date, Feb. 28, 1931. [Class 38 (ii).] In rectifier or inverter systems utilizing electric discharge valves 17 .. 20, the transformer 11 interconnecting the D.C. and A.C. circuits has a plurality of inductive windings 13, 14 and reactances 15, 16, 21, 22 are connected in the circuit of the valves so that two such reactances are included in any series circuit across any of the inductive windings so as to eliminate or reduce short circuits. Polyphase, inverter and rectifier arrangements incorporating the above means are discussed in the Specification. Reference has been directed by the Comptroller to Specifications 11539/09, [Class 38 (ii), Electric currents, Converting &c.], and 360,288.
Patent GB-681424-A (GB)
Title: Improvements in and relating to electrically heated pressure cookers
IPC: A47J27/08
Filed: 1948-02-27
Abstract: 681,424. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 27, 1948 [May 25, 1946], No. 6119/48. Class 38 (v) [Also in Groups VI and XI] A switch 34, Figs. 5 and 6, of an electrically heated pressure cooker (see Groups VI and XI) is controlled by a helical bimetallic element 42, Fig. 4. The bimetallic element 42 is connected at its lower end to a temperature-adjusting rod 44 and at its upper end to a U-shaped bracket 46 rotatable on the rod 44. A similar bracket 47, within the bracket 46 and rotatable on the rod 44, is biased against the bracket 46 by a torsion spring 48. The bracket 47 has a finger 49 for actuating the movable contact 36 of the switch. Upon heating, the helix 42 unwinds and moves the bracket 46 and therefore the bracket 47 to open the switch contacts 35, 36. When the switch arm 37 of the movable contact 36 engages a stop 39, the bracket 47 can no longer rotate but the bracket 46 may do so against the resistance of the spring 48 to avoid damaging the bimetallic element 42. The bimetallic element is mounted in the wall of the pressure cooker between heating elements extending down to a main heating area in the base of the cooker.
Patent GB-768948-A (GB)
Title: Improved back boiler fire
Inventor: PURKIS CLIFFORD HENRY
IPC: F24C13/00
Filed: 1954-03-02
Abstract: 768,948. Auxiliary boiler heaters for domestic fireplaces. NORTH THAMES GAS BOARD. March 23, 1955 [March 2, 1954], No. 6126/54. Class 126 An open fireplace having a back boiler so placed as to be in direct contact with the fire, has a gas burner near the bottom of the boiler and to one side of it, the upper part of the face of the boiler above the burner being finned, and the burner either being on the side of the boiler away from the fire, or being shielded from falling ash by a member extending rearwardly from the firebars. A burner 7 below the bottom edge of the boiler 1 is protected from ash by a shield 8 forming part of the rear of the grate 5. Flames from the burner pass up behind the shield 8 over the finned forwardly inclined front face of the boiler 1. In a modification, the back face of the boiler is finned, and the gas burner is fixed behind the boiler. Specification 626,987 [Group XIII] is referred to in the Provisional Specification.
Patent GB-1414254-A (GB)
Title: Epitaxial growth of semiconductor material from the liquid phase
IPC: C30B19/10
Filed: 1973-02-08
Abstract: 1414254 Epitaxial growth R C A CORPORATION 8 Feb 1973 [9 Feb 1972] 6136/73 Heading B1S A method of depositing a layer of single crystalline semiconductor material on a substrate by liquid phase epitaxy from a solution of the semiconductor material comprises, as shown in Fig. 1, heating the substrate 26 and the semiconductor material 32 and 34 separately from each other and from a charge of a solvent 36 and 38 for the semiconductor material in a reducing atmosphere to which they are exposed and adding the semiconductor material to the solvent charge only after the. solvent is in a molten state at a temperature sufficient for dissolution of the semiconductor material and ready for the epitaxial deposition, the resulting solution and a surface of the substrate being thereafter brought into contact with each other and the solution cooled to effect epitaxial deposition of the semiconductor material e.g. gallium arsenide using gallium as the solvent.
Patent GB-785536-A (GB)
Title: Improved welt for footwear
IPC: A43B9/06
Filed: 1954-01-09
Abstract: 785,536. Welts. NU-STILO FOOTWEAR, Ltd., and BLACK, S. July 1, 1954 [Jan. 9. 1954], No. 6156/56. Divided out of 785,535. Class 17(2) A welt strip 10c, of any usual material is of uniform width throughout and is skived at 11D and provided with V shaped serrations 10d.
Patent GB-687995-A (GB)
Title: Hydraulic automatic variable speed power transmission
IPC: F16H61/02
Filed: 1951-03-14
Abstract: 687,995. Variable-speed and reversing gearing. LYNN TRANSMISSIONS PROPRIETARY, Ltd. March 14, 1951 [March 20, 1950], No. 6181/51. Class 80 (ii). In epicyclic gearing variable with load, the sun wheel 13 is formed on the driven shaft 9, the gear annulus 5 is formed in a ring 3 secured to the driving member 2, and the member 2 and the planet carrier 7 have inner and outer conical surfaces 4, 8a between which are arranged tapered rollers 19 which latter also have recessed teeth meshing with teeth 6, 14 on the surfaces 4, 8a, so that, on supplying pressure fluid to the space. A, the carrier 7 is moved axially to the right, tending to jam the rollers 19. The carrier 7 has a duplicate part 26 secured thereto and cooperating through tapered rollers 31 with the inner conical surface 24 of a ring 22 secured to the stationary housing 23, so that, in supplying pressure fluid to the space B, a variable reverse drive is transmitted.
Patent GB-699891-A (GB)
Title: Rotary joints for electromagnetic waveguides on radar systems
IPC: H01P1/06
Filed: 1952-03-11
Abstract: 699,891. Wave-guides. BOUIX, M. March 11, 1952 [March 15, 1951], No. 6246/52. Class 40 (viii). A rotary joint for a wave-guide system comprises a torus-shaped wave-guide 10 divided into a lower stationary part 2 and an upper movable part 3, an input guide 1 being connected to part 2 and an output guide 4 to part 3, and means, controlled by the rotation of part 3, are provided which block transmission through the major arc of the torus between guides 1 and 4, and permit transmission through the minor arc. As shown, movable strips 6 and 7 are provided on each side of guide 1, and strips 8 and 9 on each side of guide 4. When these are pushed into the guide 10 they stop transmission, but when they are pulled out free transmission can occur. They are operated to produce the desired effect by plungers 45 operated by solenoids. The apparatus is shown applied to a radar apparatus mounted on the mast 5 of a vessel, the transmitter being connected to guide 1 and the aerial to guide 4.
Patent GB-121578-A (GB)
Title: beta-Bromoethyl p- Nitro Benzoate.
IPC: C07C205/57
Filed: 1918-04-12
Abstract: 121,578. Abbott Laboratories, (Assignees of Adams, R., and Kamm, O.). Dec. 21, 1917, [Convention date]. #-Bromethylester of p-nitrobenzoic acid is prepared by reaction of ethylene bromide on a salt uf p-nitrobenzoic acid, preferably in the presence of an amine or finely divided copper as catalyst. Di-p-nitrobenzoic ester of ethylene glycol is obtained as a by-product in the above process. p-Aminobenzoic ester of diethylaminoethanol is obtained by condensing the above-described bromo compound with diethylamine and reducing the product.
Patent GB-971818-A (GB)
Title: Counting chain or ring counter composed of optronic elements
IPC: H03K23/78
Filed: 1963-02-15
Abstract: <PICT:0971818/C4-C5/1> A binary or ring counter (see Division G4) comprises a conductive base 10 on which is deposited an electroluminescent material 11 covered by a transparent electrode 12. A photo-conductor 13 covered by an electrode 14 is put directly on parts of electrode 12 while other photo-conductors 17, 20 and electrodes 18, 21 are separated from the electrode 12 by an insulator 15.  Apertures A allow the count to be indicated.
Patent GB-129255-A (GB)
Title: Improvements in Anti-friction Bearings.
Inventor: TIMKEN HENRY HEINZELMAN
IPC: F16C19/54
Filed: 1919-03-13
Abstract: 129,255. Timken, H. H. June 29, 1918, [Convention date]. Ball or roller bearings.-The outer races of a roller bearing for vehicle wheels, or of a ball bearing of the cup-and-cone type, fit into slightly tapered seats 12, 14 in the hub, and become wedged in position by axial thrusts. The device is applicable to the hubs of differential mechanism of motor-vehicle driving axles,
Patent GB-1357452-A (GB)
Title: Articles for biological usage which are resistant to incrustation
IPC: A61L27/00
Filed: 1972-02-10
Abstract: 1357452 Artificial body tubes RHONEPOULENC SA 10 Feb 1972 [11 Feb 1971] 6302/72 Heading A5R [Also in Divisions B2 and C3] A process for preparing an article resistant to incrustation in biological use, for example a tube carrying human or animal urethrals, bile or haemodialised blood, which process comprises applying to the surface of the article a layer of a liquid organosilicon composition which (a) is substantially free from fillers, (b) has a viscosity of 10 to 10,000 cpo. at 20‹C and (c) can be cured with a change of volume within the range of Œ5%, allowing the layer of the organosilicon composition to level under the influence of surface tension to provide a substantially smooth layer, and then curing the levelled layer on the surface. An organosilicon primer layer may also be applied. The tube is made of biologically tolerated material such as polydimethyl siloxane hot-vulcanised using benzoyl peroxide, or braided polyester fibre repeatedly steeped in a solution of cross-linked polydimethyl siloxane and dried. Three specific examples of compositions are given.
Patent GB-1076052-A (GB)
Title: Fermentative method for the production of l-glutamic acid
IPC: C12P13/14
Filed: 1965-02-15
Abstract: L-Glutamic acid is prepared by cultivating Corynebacterium acetoglutamicum (ATCC No. 15806), or an L-glutamic acid-producing mutant thereof, under aerobic conditions in a nutrient medium containing acetic acid or an alkali metal or ammonium salt thereof as the sole assimilable carbon source.
Patent GB-1067303-A (GB)
Title: Liquid developer for electrographic printing
IPC: G03G9/125
Filed: 1965-02-15
Abstract: 1,067,303. Electrophotographic liquid developers. A. B. DICK CO. Feb. 15, 1965 [Feb. 13, 1964], No. 6464/65. Heading G2H. A liquid developer for electrophotographic latent images comprises a liquid organic solvent system having a flash point above 100‹C., a polystyrene resin dissolved therein in an amount of 0À5 to 5% by wt., and suspended therein 0À05 to 0À6% by wt. of a dye pigment. Specified solvents are hydrocarbons, and halogenated hydrocarbons. The developer may be prepared by diluting a concentrated solution of polystyrene with the dye dispersed therein with a solution of polystyrene. The dye may also be dispersed in a resin insoluble in the liquid carrier; in the Examples nigrosine is used.
Patent GB-858971-A (GB)
Title: Improvements in or relating to the manufacture of polymeric materials
IPC: C08G18/62
Filed: 1958-02-28
Abstract: In preparing cellular polyurethanes from polyesters, polyisocyanates, a catalyst and water, the ingredients used in preparing the polyester comprise 0,5 to 8% of at least one polymer of Mol. wt. greater than 1000 and having a recurring unit containing one or more groups reactable with hydroxyl or carboxyl groups during polyester formation.  Compounds specified are wholly or partially hydrolysed polyvinyl acetate, polyallyl alcohol, polymethacrylic acid and the copolymers of styrene and maleic anhydride.  Lists of suitable glycols, acids, and catalysts are given, and also surface active agents.  Acid value of the polyesters is less than 10. Specifications 790,420 and 842,154 are referred to.ALSO:In preparing cellular polyurethanes from polyesters, polyisocyanates, a catalyst and water, the ingredients used in preparing the polyester comprise 0,5 to 8% of at least one polymer of Mol. wt. greater than 1000 and having a recurring unit containing one or more groups reactable with hydroxyl or carboxyl groups during polyester formation.  Compounds specified are wholly or partially hydrolysed polyvinyl acetate, polyalkyl alcohol, polymethacrylic acid, and the copolymers of styrene and maleic anhydride.  Lists of suitable glycols, acids, and catalysts are given, and also surface active agents.  Specifications 790,420 and 842,154 are referred to.