baber/WOPTO huggingface dataset:
Patent GB-857798-A (GB)
Title: Process for the production of polymeric materials
Inventor: BURNETT JAMES DONALD
IPC: C08F293/00
Filed: 1958-04-18
Abstract: Segmented polymers, i.e. graft and block copolymers and branched chain homopolymers are produced by a process in which a normally solid high polymer having molecules containing peroxy groups is irradiated with ultra-violet light in the presence of a monomeric compound containing one or more olefinic double bonds and capable of polymerization under the influence of free radicals, the irradiation being carried out in the absence of a concentration of oxygen which would otherwise inhibit the polymerization of the monomeric compound. Preformed polymers specified are polythene, polypropylene, polyisobutylene, polystyrene, polyvinyl alcohol, polyvinyl acetate, polyvinyl formal and butyral, polyvinyl and polyvinylidene chlorides, polytrifluorochloroethylene, polytetrafluoroethylene, polymethyl and polybutyl methacrylates, polyacrylonitrile, polyvinyl pyridines, poly N-vinyl pyrrolidone, polybutadiene, polyisoprene, polychloroprene interpolymers of butadiene with styrene, acrylonitrile or methyl methacrylate, epoxide polymers, polyethylene glycols, polyesters, polyamides, polyurethanes, polyureas, polysulphonamides, rubber, chlorinated rubber, rubber hydrochloride, gutta percha, balata, cellulose and its esters, ethers and acetals, cotton, wool, silk, starch, copal resins, shellac and alginates.  Monomeric compounds specified are acrylic and methacrylic acids and their methyl, ethyl, n-butyl and allyl esters, 2-ethoxyethyl and 2-chloroethyl methacrylates, ethylene dimethacrylate, acrylonitrile, methacrylonitrile, acrylamide, n-butyl acrylamide, vinyl and vinylidene chlorides, methyl vinyl and methyl isopropenyl ketones, styrene, vinyl toluenes, vinyl toluene sulphonic acids, divinyl benzene, acenaphthalene, vinyl acetate, vinyl pyridines, vinyl carbazole, N-vinyl pyrrolidone, butadiene, isoprene and chloroprene. Peroxy groups may be introduced into the performed polymer in the following ways: (a) by subjecting the polymer to ionising radiation or ultraviolet light in the presence of oxygen or air, (b) by treating with molecular oxygen a copolymer containing units of isopropyl- or isooctyl-styrene, (c) by saponifying a copolymer containing isopropenyl acetate units and treating the polymer product with hydrogen peroxide, (d) by masticating the polymer in an oxygen-containing atmosphere at a temperature below 170 DEG C. (e) by treating the polymers with sulphochromic acid, mixtures of sulphuric acid and potassium permanganate, aqua regia, Caro's acid or ozone and (f) in the case of polythene by heating the polymer in an atmosphere of oxygen.  In the examples polythene is peroxidised by mastication in the presence of oxygen, contacted with styrene, acrylonitrile or methyl methacrylate, degassed and then irradiated with ultra-violet light.  Specification 857,797 is referred to.
Patent GB-535807-A (GB)
Title: Improvements in means for generating and storing combustion products under pressure
IPC: F17C5/06
Filed: 1940-02-29
Abstract: 535,807. Generating combustion products under pressure. HALL, F. H. Feb. 29 1940. No. 12363 Divided out of 525,843. [Class 51 (i)] A plant for generating and storing gases under pressure from combustible gas producing cartridges comprises a number of storage chambers 1 each provided with a cage 6 for receiving a cartridge 8 and with a non-return valve 16 in an outlet communicating with a supply pipe 2 provided with a valve 4. The cage is held in place by a nut 7 containing a firing pin 10 operated by a striker pin 12 released by a trigger 13. Specifications 433,198, [Group XXXI] and 454,091, [Group XXI] are referred to.
Patent GB-559894-A (GB)
Title: Improvements in apparatus for rendering active the detonating devices of bombs and like explosive missiles
IPC: B64D1/04
Filed: 1942-09-02
Abstract: 559,894. Bombs, dropping ; fuzes. WATTS, R. H., and ROSE BROS. (GAINSBOROUGH), Ltd. Sept. 2, 1942, No. 12375. [Classes 9 (i) and 9 (ii)] A straight pull is imparted to the safety pin 26 of a detonator 24 by means of a guide 32 secured to the bomb 12. The pin is pulled out by a cable 27 which passes through a slot in the guide, the upper end of the cable having a loop which passes through a rubber washer 36 and is correctly positioned in a fuzing unit ?8 by an adaptor 35. When the bomb is to be dropped "live", a remotely-controlled electricallyoperated retaining member 37 is moved to the righthand position to engage the loop in the cable, and on release of the bomb the pin 26 is drawn out. When the bomb is to be dropped "safe", the member 37 is allowed to remain in the left-hand position, and the cable is pulled through the washer 36 and falls with the bomb, the pin remaining in position as shown. The fuzing unit 28 is attached to the inside of the hinged lid 29 of the bomb shoot 11. The spring- loaded striker of the detonator 24 is released for movement by rotation of a screwed spindle actuated by a spinner vane rotated by air resistance as the bomb falls. The vane is enclosed in a cap 38 attached to a flange 39 by light clips and connected to roller mechanism 42 by a cable 41 ; as the bomb falls, the cable unwinds a little and then stops, the cap 38 being jerked off, leaving the vane free to spin. Specifications 559,724 and 559,725 are referred to.
Patent GB-387309-A (GB)
Title: Improved electrodynamic device for translating electric oscillations into acoustic vibrations and conversely
IPC: H04R9/04
Filed: 1931-04-27
Abstract: 387,309. Loud-speakers &c. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. April 27, 1931, No. 12421. Convention date, May 10, 1930. Void [Published under Sect. 91 of the Acts]. [Class 40 (iv).] A moving coil 3 mounted on a former 4 is centred by a stretched hood 6 of textile fabric attached to the central polepiece by a pin 9. The hood is preferably of linen, treated with lacquer, varnish or aeroplane lac and is glued to the diaphragm 5 upon which the former 4 is mounted. The diaphragm may terminate in a cylindrical portion to which the coil former and centring device may be attached.
Patent GB-179544-A (GB)
Title: An improved process for the manufacture of salts of urea and more especially of nitrate of urea, starting from cyanamides
IPC: C07C273/06
Filed: 1922-05-03
Abstract: Urea salts are obtained by treating concentrated solutions of free cyanamide, obtained for example as described in Specification 151,597 and concentrated by repeating the process using the dilute cyanamide to dissolve further quantities of calcium cyanamide, with sulphuric acid, or other cheap acid, and a salt of the acid of which the urea salt is required; suitable salts are alkali, alkaline earth, and ammonium nitrates and chlorides, for example, those of sodium, potassium, magnesium and calcium.  In an example sulphuric acid and ammonium or an alkali nitrate are used; the mixed product may be used directly as a manure, or urea nitrate crystallized out.  The filtrate containing ammonium sulphate may be treated with calcium nitrate, filtered from plaster of paris, and evaporated for ammonium nitrate; or the mixture may be evaporated without filtering, for use as a manure.ALSO:Concentrated solutions of cyanamide are obtained from calcium cyanamide by multiple extraction, that is the calcium salt is decomposed, for example by carbon dioxide as described in Specification 151,597, [Class 2 (iii), Dyes &c.], and the dilute solution of cyanamide obtained is used to dissolve further quantities of calcium cyanamide.  In an example of the process described for converting the cyanamide into urea, sulphuric acid and ammonium nitrate are employed.  The urea nitrate is crystallized out and the filtrate containing ammonium sulphate may be treated with calcium nitrate, filtered from calcium sulphate and evaporated for ammonium nitrate.
Patent GB-103273-A (GB)
Title: Improvements in or relating to Lined Bearings.
IPC: F16C33/14
Filed: 1916-05-05
Abstract: 103,273. Pressed Bearing Co. May 5, 1916. Addition to 100,448 Bearings.-Lined bearing-brasses are produced by coating or lining a backing-metal, such as brass, with a metal such as Babbitt-metal. The lining may be applied in a molten condition to. an unflanged strip or blank before bending in a press to semicircular shape, or may be applied in sheet form and soldered to the backing strip or blank, which may be flanged or unflanged. A strip a is fed by rolls B over a burner D, is cleaned by acid applied at c, is tinned by solder fed in strip form at F and smoothed by a copper-bit H, is coated with Babbitt-metal at J, and passes through con. solidating-rolis L, which may be cooled. The strip may be cut into lengths by dies or by saws, and the blanks are placed on a sectional die 11, held together by bolts, and are bent and consolidated by a die N operated by a press working at about 50 strokes per minute. The die 11 is formed with an ejector-plunger 15. The cleaning, tinning, and lining may be performed by hand.
Patent GB-750737-A (GB)
Title: Improvements in or relating to ornamental beads and like bodies
Inventor: CHARLES GEOFFREY RUSSELL STAFF
IPC: A44C11/00
Filed: 1954-04-29
Abstract: 750,737. Necklaces, braclets &c. CHELTON (POPPITS), Ltd. April 19, 1955 [April 29, 1954; June 15, 1954], Nos. 12514/54 and 17615/54. Class 43. [Also in Group XXV] Beads and like ornamental bodies adapted to be fastened together to form a necklace, bracelet, or pendant, comprise a main or body portion 10, Fig. 3, to which a head portion 12 is joined by a neck 11, the part of the body on the side opposite the neck being formed with a socket 13 which is provided with a mouth 14 of slightly smaller diameter than the head, the relative sizes and arrangement of the parts 11-14 being such that two similarly shaped beads, at least one of which is made of resilient plastic material, can be connected together by forcing the head of one, with a snap action, through the mouth of the socket of the other, the head, neck and socket being so dimensioned as to permit of relative angular movement between the beads, with free play of the head in the socket. The beads may consist of moulded polythene. A bead of the form shown may be provided with an additional head or socket whereby it may be joined to three other beads. Fig. 4 shows a modification wherein a pair of beads 20 are each provided with a pair of sockets 21, 22 located at opposite ends of a diameter to receive heads 24, 25 at the opposite ends of a stem 23, the heads being forced into the inwardly tapered mouths of the sockets with a snap action. The beads may be hollow and each formed by two moulded hemispherical portions 31, 32, Fig. 5, which are interconnected by an inwardly directed flange 33, or a series of similarly shaped projections, on the one engaging within a recess 34 in the other. Alternatively a solid bead may be formed with a deep cylindrical socket having a lipped mouth of smaller diameter than the socket. The heads may be made of conico-spherical form, comprising a conical portion with the apex directed outwardly, integral with a part spherical portion joining the neck. A plurality of freely coupled beads of the same size and forming a set may be connected to sets of different sizes to form a necklace, or a necklace may consist entirely of beads of different sizes. The beads may be made of different colours and may be multicoloured.
Patent GB-845721-A (GB)
Title: Improvements in tube fittings
Inventor: WADE JOHN PERIN
IPC: F16L19/06
Filed: 1957-04-17
Abstract: 845,721. Pipe joints. WADE COUPLINGS Ltd. July 30, 1957 [April 17, 1957], No. 12517/57. Class 99(1). A tube fitting comprises a spigot 4 with an integral boss 5 having a force fit in a socket 1 and over which a synthetic plastic pipe end 7 is engaged and supported against collapse. The boss 5 abuts a shoulder 8 in the socket from which the spigot 4 projects and a gland 9 fitted on the tube is engaged between a tapered part 10 on the socket and a gland nut 11 screwed thereon. In a modification, Fig. 3 (not shown), the fitting is formed as a double ended union.
Patent GB-891269-A (GB)
Title: Improvements in or relating to the lubrication of foundry moulds
IPC: B22D11/07
Filed: 1960-04-08
Abstract: 891,269. Coating and lining moulds. SOC D'ELECTRO-CHIMIE, D'ELECTROMETALLURGIE ET DES ACIERES ELEC. TRIQUE D'UGINE. April 8, 1960 [May 29, 1959], No. 12672/60. Class 83 (1). Lubricant is supplied to the inside surface of a continuous casting mould 1 through passages 4 whose end sections 6 have been deformed as by hammering or crushing to prevent the outflow of molten metal while permitting the flow of lubricant.
Patent GB-922023-A (GB)
Title: Mixed fatty acid esters of mono- and di-saccharides and their preparation
IPC: C07H13/06
Filed: 1959-04-15
Abstract: The invention comprises non-crystallisable esters which are fully esterified mono- and di-saccharides having at least two different acyl substituents, the acyl substituents in the esters being acetyl, propionyl or isobutyryl groups.  The esters may be prepared by heating the mono- or di-saccharides with a mixture of at least two of the anhydrides of acetic, propionic and isobutyric acids in the presence of an alkali metal or alkaline earth metal salt of an organic acid as catalyst, the salt being alkaline in reaction and the ratios of reactants being chosen so as to produce esters which are non-crystallisable.  The preferred saccharides are glucose and sucrose but lactose, maltose and cellobiose are also specified. Glucose is reacted with a total of 5 to 8 molar proportions of anhydride, acetic anhydride being used in amounts of from 0.5 to 2 moles per mole of glucose; preferably reaction is effected with 0.5 to 1.25 moles of acetic anhydride and 5.25 to 6 moles of propionic or isobutyric anhydride.  Sucrose is reacted with a total of 8-12 moles of anhydride per mole sucrose; acetic anhydride used should amount to 1-4 moles per mole of sucrose.  Reaction may be effected at 90 DEG -140 DEG C., if desired in the presence of an inert organic solvent. The esters may be recovered by removing unreacted anhydride and by-product acid by vacuum distillation, dissolving the residue in a water-immiscible solvent, washing with dilute NaOH or Na2CO3 solution and then distilling off the solvent in vacuo.  Examples describe the full esterification of (1) sucrose with various mixtures of acetic and isobutyric anhydrides yielding non-crystallisable esters or in a comparative experiment an ester which crystallises on standing; (2) sucrose with similar mixtures of propionic and isobutyric anhydrides; (3) glucose with a mixture of acetic and isobutyric anhydrides; (4) glucose with a mixture of propionic and isobutyric anhydrides and (5) glucose and sucrose with mixtures of acetic and propionic anhydrides. The esters are plasticisers for cellulose esters. Specifications 436,885 and 32428/38 as open to public inspection under Section 91 of the Patents Act 1932 are referred to.
Patent GB-276412-A (GB)
Title: Improvements in or relating to collapsable metal cabinets & shelving
IPC: A47B47/03
Filed: 1926-05-18
Abstract: 276,412. Behin, R. May 18, 1926. Cabinets and shelves wherein standardized parts are dismountably connected are constructed of metallic sheets with flanged edges and provided with bolt holes which are oval in shape in order that inaccuracies of machining may be overcome when the parts are assembled, The end sheets and vertical division plates have tubular front edges 13 and superposed sections can be connected by an inner lining fitting 28 within the front edge of each section. A bottom 4 of inverted-box formation is provided to which the sides and back are connected by the interfitting of folded-over lower edges 4<e>, 3f, and the edges of the shelf and top members 6 are also connected to the back wall by interfitting bent edges.
Patent GB-474764-A (GB)
Title: Improvements in or relating to steam locomotives
IPC: F01K15/02
Filed: 1936-05-06
Abstract: 474,764. Turbine locomotives. VEILLON, H. ZOELLY-. May 6, 1936, No. 12785. Convention date, May 25, 1935. [Class 79 (i)] A high-power locomotive of the kind having a rapid steam generator, a fuel container, a water tank, and a propelling turbine all mounted on a common frame, is characterized by the feature that the turbine 9 is mounted on the frame 4 between the steam generator 5 and the condensing plant 6 and is below the fuel container 8. The boiler 5 may be a Benson, La Mont, or Sulzer boiler, and comprises a drum 11 and tubes 12, Fig. 5. In the construction shown the turbine 9 drives coupled wheels 3 through reversing gear 14 and a lay shaft 15. The turbine exhausts into the condenser 6, and the water of condensation collects in a chamber 18. The condenser is air cooled by fans 10, and water trickles down the condenser tubes to a tank 19, Fig. 2. A watercooled surface condenser may be used with a cooler for the circulating water. Water tanks 7 .are provided at each side of the boiler and a tank 7<1> extends beneath the coal bunker 8. The Specification as open to inspection under Sect. 91, also describes an arrangement in which the steam generator is at the middle of the locomotive, the fuel container is at one end, and the condenser and a water tank at the other end. The turbine in this case might be situated between the fuel container and the steam generator. This subject-matter does not appear in the Specification as accepted.
Patent GB-635627-A (GB)
Title: Improvements in or relating to coupling devices for agricultural tractors chiefly applicable to single axle type trailers
IPC: B62D53/06
Filed: 1947-05-12
Abstract: 635,627. Vehicle couplings. VALIN, M. May 12, 1947, No. 12818. Convention date, March 14. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 15, 1947.] [Class 103 (v)] An arrangement for coupling one vehicle to another comprises a U-shaped member B extending rearwardly from the first vehicle and pivoted thereto by the ends of its limbs about a horizontal transverse axis T in the vicinity of the wheel axis, a beam F rigidly carried by the second vehicle and extending forwardly thereof, a first universal joint connecting the rearwardly extending base of the U-shaped member B and the forward end of the beam F, a second universal joint connecting one end of an intermediate member P to the beam F, and a third universal joint connecting the other end of the intermediate member P to the U- shaped member B, the first and second universal joints forming a substantially vertical hinge axis between the beam F and the U-shaped member B. The intermediate member P may take the form of a telescopic unit in compression, as in Fig. 1, or of a chain P<SP>1</SP> in tension, as in Fig. 5. To provide universal movement between the end of the member B and the beam F, in Fig. 1, a coupling such as that shown in Fig. 4 may be used. In Fig. 7, the invention is shown applied to a train of vehicles. Special arrangements are also described for ease in coupling the member B to the beam F and the intermediate member P at its lower end connection.
Patent GB-1107298-A (GB)
Title: Improvements in or relating to electric lighting fittings
Inventor: SYKES WILLIAM MELVIN
IPC: F21V21/02
Filed: 1966-03-23
Abstract: 1,107,298. Supporting lighting fittings. COURTNEY, POPE (ELECTRICAL) Ltd. 16 Feb., 1967 [23 March, 1966], No. 12824/66. Heading F4R. A lighting fitting is supported, e.g. in a recess in a ceiling, by means of a holder slidable in a slot shaped so that in normal use the holder takes up a position of stable equilibrium in which it is retained by spring biasing means and from which it can be moved to a second position for maintenance of the fitting. In one form, the fitting is carried by the hooked end 18 of a hanger 10, the top of which is carried by a shaft 9 moving in a slot 4 in a fixed plate 3. The shaft carries two discs 7, 8 on opposite sides of the plate 3 and is secured by a spring 12 to a fixed point on the plate. The slot is bent at an angle at the upper part so that the shaft passes an over-centr eposition and retains the hanger in either the normal or lowered position. In a modification, a single disc is used on the opposite side of the plate to the hanger. Instead of fastening the spring to a fixed point, it may extend between a pair of hangers either of which can be lowered independently.
Patent GB-1017265-A (GB)
Title: Improvements in and relating to 7-cyclohexylheptanols
IPC: C08G63/137
Filed: 1964-03-26
Abstract: 7 - Cyclohexylheptan - 1 - ol and - 1,4 - diol are prepared by hydrogenating in presence of copper chromite at 230-260 atm. gauge pressure and 240-250 DEG C. a solution in an inert organic solvent of g -cyclohexylpropyl-g -butyrolactone. The starting material may be prepared by hydrogenating in presence of Raney Ni at 250 atm. and 220 DEG  C. a dioxan solution of butyl b -[2-(5-phenyl)-furyl]-propionate.
Patent GB-454452-A (GB)
Title: Improvements in machine cloths or printers blankets
IPC: B41N10/04
Filed: 1935-05-02
Abstract: 454,452. Compound fabrics. KENYON & SON, Ltd., J., and SLEIGH, J. H., Derby Street Mills, Bury. May 2, 1935, No. 13056. [Class 140] A machine cloth applicable as a blanket on the cylinders of printing machines or for covering rollers of textile spinning machines comprises two outer layers of a soft, resilient, woollen cloth adhesively united to an intermediate layer of finely, closely woven fabric such as cotton, linen, silk, hemp or hessian. The intermediate layer is impregnated with adhesive, or adhesive is applied to one face of each outer layer, and the three layers are united by pressure. Rubber or rubber solution is preferably employed as adhesive ; other adhesives may, however, be employed, e.g. cellulose derivative varnish or dope, gum, asphalt, or resin. The surface of the cloth may be coated with a cellulose derivative varnish or dope,
Patent GB-560406-A (GB)
Title: Improvements in or relating to apparatus for coating curved surfaces
IPC: B05C9/08
Filed: 1942-09-17
Abstract: 560,406. Polarizing apparatus. INTERNATIONAL POLAROID CORPORATION. Sept. 17, 1942, No. 13128. Convention date, May 20, 1942. [Class 97 (i)] [Also in Group III] In apparatus for applying a layer of material to spherically curved surfaces, a holder carries a number of such surfaces in such manner that their centres of curvature are coincident in a common point and the holder is rotated about an axis through this point to cause a coating element to engage them frictionally and is also otherwise moved to cause all portions of the surfaces to come into contact with the coating element; the apparatus may be used for the application to headlight lenses of layers of material having similarlyoriented molecules, in the manner described in Specification 567,675, such a layer being also rendered polarizing. As shown, a holder 20 carries four rings 10 on which " sealed-beam " headlights may be mounted with their front spherical surfaces centred in'a common point. The holder is rotatable on a shaft 25 having its axis passing through this point, rotation being effected by a motor 33 and belt 30. The shaft 25 is mounted in a frame 26 rotatable together with coaxial shafts 38, 45, the motor 33 being carried by the shaft 38 ; rotation of the frame 26 may be effected by a hand crank 55, or by a motor, through worm gearing 48, 46. A strip 100 of polyvinyl alcohol is mounted in a frame 82, 84, so that it may be drawn longitudinally by motor-driven rollers 122 against the action of a weight 135, and an adjustable spring-pressed bolt 110 causes a roller 105 to' press the strip into frictional engagement with the spherical surfaces. Means is described, comprising three spring-pressed prongs carried by a pivoted plate 66, for facilitating the location of the spherical surfaces on the holder ; each prong is connected in circuit with a lamp which is lighted when the surface is correctly positioned and the plate 66 is raised (as shown) to engage the prongs with the surface. Specifications 548,759 and 549,698 also are referred to.