baber/WOPTO huggingface dataset:
Patent GB-1488541-A (GB)
Title: Loudspeaker
IPC: H04R9/04
Filed: 1975-07-23
Abstract: 1488541 Loud-speaker diaphragms W L REHDE and J A REHDE 23 July 1975 [12 Aug 1974] 30727/75 Heading H4J In a moving coil loud-speaker a central stiffening ring 4 of material is adhered firmly to both the diaphragm and voice coil former and, beyond the ring 4, stiffened zones 7, 8, 9, 10 are produced by impregnation with a hard-setting varnish, these zones 7, 8, 9, 10 being independent of one another and extending outwards to the outside edge of the diaphragm. Preferably the hardsetting varnish is of cellulose type and the central stiffening ring 4 is of hard setting adhesive. Preferably an annular coating layer 5 of varnish surrounds the annular zone. A corrugated spider (3) Fig. 1 (not shown) is provided. The zones 7, 8, 9, 10 may be reinforced by additional cloth, paper or other material bonded by the varnish. In alternative arrangements three regions (11) Fig. 4 (not shown) are used or four strips extend from the layer 5 to the periphery of an elliptical diaphragm. Fig. 6 (not shown) shows the part of the diaphragm outside the annular layer 5 entirely covered by varnish except for four strips (13) arranged at right angles to each other. In Fig. 7 (not shown) four narrow arcuate strips (14) of varnish are used. In Fig. 8 (not shown) eight radial strips (15) extend from the annular layer 5 to the periphery. All arrangements may be applied to diaphragms of elliptical or any other non-circular shape.
Patent GB-669023-A (GB)
Title: Improvements in or relating to velocity modulation devices
IPC: H01J25/16
Filed: 1945-11-16
Abstract: 669,023. Velocity-modulated tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Nov. 16, 1945 [Sept. 15, 1944], No. 30801/46. Class 39 (i). In a velocity modulated device a plurality of re-entrant portions of at least one cavity resonator are respectively traversed by a plurality of separate electron beams, the said cavity resonator being so excited that the electrical high - frequency energy is mainly concentrated in the spaces near said re-entrant portions so as to form elementary resonant circuits connected in parallel and disposed side by side in such manner as to form separate cavities for the individual beams without any dividing walls extending in the direction of the beams. The device can have input and output cavity resonators disposed side-by-side so as to form a single cavity having a wall arranged transversely to the direction of the beams and separating said input and output resonators. The input and output cavity resonators may be each provided with a wall in contact with one another and arranged transversely to the direction of the beams. Figs. 4a and 5b show one example of the invention. Modifications are described in which the re-entrant portions are disposed in a ring or in parallel rows. Figs. 8a and 8b show an arrangement in which the input and output cavity resonators are arranged in the form of coaxial rings, the reentrant portions of each resonator being traversed by electron beams emitted from a cathode situated at the centre of the rings. The invention is applicable to valves having a single resonant circuit as in the single cavity klystron and formed by removing the dividing wall in Fig. 4a. The invention is also stated to be applicable to reflection valves.
Patent GB-897358-A (GB)
Title: Improvements in or relating to air conditioning and ventilation
IPC: F24D5/00
Filed: 1960-09-08
Abstract: 897,358. Ventilating. CUTHBER.T, J. Sept. 8, 1960, No. 30938/60. Class 137. A building is divided into zones each made up of enclosures having similar requirements for conditioned air, each enclosure contains one or more mixing units supplied with primary (fresh) air and secondary (recirculated, fresh or mixed) air, and the primary and secondary air are conditioned by remote conditioners respectively common to the whole building and to individual zones. The conditioner can include drying, humidifying, filtering, heating and cooling means. Thus the main load can be put on the primary conditioner, zonal variations being met by the secondary conditioners. Each unit comprises a casing 37 having an inlet 11 and inlet chamber 10 for secondary air from trunk 9. The pressure in chamber 10 is maintained constant irrespective of variations in supply pressure by automatic pressure-responsive valve 12. Primary air enters a box 29 through duct 28 containing an adjustable valve 31 and escapes through ejector like upper slots 32 to aspirate secondary air from chamber 10 through aperture 19 and channels 25. The air mixed in chamber 26 enters the room through a top opening 34 with adjustable louvres at such a velocity as to circulate room air. The amount of aspirated air is controlled by a valve 20 in aperture 19. As shown, the valve 19 is manually settable by knob 21 but it may be automatically actuated in response to room temperature. Each zonal conditioner can be controlled by the temperature of recirculated air or by the temperature in a master room of its zone.
Patent GB-1386366-A (GB)
Title: Liquid supply system
IPC: F02C9/30
Filed: 1972-07-03
Abstract: 1386366 Centrifugal pumps; gas turbine engine fuel control systems SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 3 July 1972 [6 July 1971] 31003/72 Headings F1C and F1G The invention relates to a system for supplying liquid under pressure and is described with reference to a fuel supply system for a gas turbine engine, the system comprising a centrifugal pump 3 of the vapour core type which takes fuel from a source 2 and delivers it to a fuel burner 1. The pump comprises a control valve 101 disposed at the suction side of the pump and controlled by a motor 102 in dependence on signal X1 from a control unit 103. The control unit receives signals α, #, γ, # also a signal Z in response to the pressure difference #P across the control valve 101, also a signal Y which is a feedback signal from the control valve 101.
Patent GB-693514-A (GB)
Title: Improvements in or relating to steam and water separators
Inventor: BUTTERWORTH HARRY LEWIS
IPC: B04C3/00
Filed: 1950-12-20
Abstract: 693,514. Centrifugal-separators. LANCASTER & TONGE, Ltd. Dec. 20, 1951 [Dec. 20, 1950], No. 31086/50. Class 23 In a steam separator comprising a cylindrical body A, an inlet pipe D, whirl producing passages F at the top of the inlet pipe, and a steam outlet H surrounding the top of the inlet p i p e and through which the passages pass. the bottom of the cylindrical body forms a reservoir for water and has an outlet L for dirt, an outlet M connected to a steam trap, and an outlet N connected to a valve which is opened when steam passes through the separator. A ship's  siren connected to the outlet H operates when steam passes through the separator. The steam trap deals with condensatewhen the siren is not operative, and the opening of the valve prevents flooding of the separator during operation of the siren. The inlet pipe has annular vanes J<SP>1</SP>, J<SP>2</SP> and the internal wall of the cylindrical body is provided with longitudinal vanes G.
Patent GB-479480-A (GB)
Title: Improvements in or relating to shoe bottom pressing apparatus
IPC: A43D25/10
Filed: 1936-11-17
Abstract: 479,480. Sole - laying machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation) Nov. 17, 1936, No. 31404. [Class 17 (i)] In a machine for pressing shoe bottoms, especially intended for sole laying, the pressure applying pad is of solid rubber and comprises a block for engaging the fore-part of the shoe bottom, a separate block for engaging the heel end portion, and a plurality of separate blocks for engaging the shank portion. All these blocks are supported on an underlying water-filled bag. The shank sections are shaped to apply pressure only at the opposite marginal portions of the shank. Flat metal plates are provided under the fore-part of the shoe bottom. A cover of leather backed by rubber is provided. The pad box is of the kind described in Specifications 408,682 and 408,953, and comprises a water-filled bag surmounted by a fore-part pad 18, shank pads 28, 30 and a heel end pad 26. Preferably, the fore-part pad has hard rubber at its toe portion and softer rubber under the outer side of the shoe. The pad may be covered .by one or two superposed metal plates 44. A plate 50 of triangular shape may be inserted from the toe end. The shank blocks comprise seven pairs of blocks, each pair being housed in a box 32 of thin metal. The blocks are spaced apart by low blocks 34, and are shaped to engage the marginal portions of the shank. The heel block and shank blocks are retained by a member 40. The leather and rubber cover 62 is retained by a masking plate 56 and clips at the heel end. A thimble 80, secured to the cover by lugs, projects into a hole in the fore part pad. By moving one or both spacing members 34 to the outer side of the rubber blocks, the groove between the blocks may be adjusted for a narrow-shanked shoe.
Patent GB-1161543-A (GB)
Title: Process for Preparaing Dichloroacetyl Chloride
IPC: C07C51/58
Filed: 1967-07-07
Abstract: 1,161,543. Dichloroacetyl chloride. FARBWERKE HOECHST A.G. 7 July, 1967 [7 July, 1966; 24 Feb., 1967], No. 31466/67. Heading C2C. Dichloroacetyl chloride is produced by oxidizing trichloroethylene in the liquid phase, in the presence of oxygen, and under the action of ultra-violet light and with the addition during the course of the reaction of 0À0005 to 0À05% by weight of an organic nitrogen base, the reaction being continued until there is present 98% by weight or more of dichloroacetyl chloride. The organic base, e.g. a secondary or tertiary amine such as dimethylamine, diethylamine, dibutylamine, trimethylamine, triethylamine, a tributylamine, N- methylaniline, N,N - dimethylaniline, pyridine, piperidine, a picoline or quinoline, may be added with or without interruption of the reaction.
Patent GB-485200-A (GB)
Title: Improvements in or relating to method of producing a laminated article or composite wrapper, the laminated article or composite wrapper resulting therefrom, and the use thereof in packages
IPC: D21H19/84
Filed: 1936-11-17
Abstract: 485,200. Laminated sheet materials ; packages. SHELLMAR PRODUCTS CO. Nov. 17, 1936, No. 31474. Convention date, July 17. Drawings to Specification. [Class 140] [Also in Group XVII] Laminated wrapping material for packages comprises a sheet of transparent cellulosic material, e.g. regenerated cellulose or cellulose acetate, having a moisture proof coating on one surface, and a sheet of paper coated with paraffin wax. The two sheets are bonded together on their uncoated surfaces, e.g. by means of an adhesive, e.g. a lacquer. In forming a package, the laminated material is folded with the edges overlapping in such a way that the wax coating on the paper is superimposed on the moisture proof coating of the cellulosic sheet. and the overlapping portions are bonded together by heat and pressure.
Patent GB-1118098-A (GB)
Title: Method and means for forming from and securing to thin wrapper webs a reinforced tearstrip
Inventor: GAMBERINI GOFFREDO
IPC: B31B1/90
Filed: 1966-07-13
Abstract: 1,118,098. Applying tear strips to wrappers. AMF-SASIB S.p.A. SCIPIONE INNOCENTI BOLOGNA. 13 July, 1966, No. 31495/66. Heading B8C. Reinforced tear strips are secured to a continuous (cellulosic) wrapper web, two or more strips being cut from the web margin, adhered together by the use of adhesive or solvent, and stuck to the web aided by heating means, the above process being continuous. The machine forming the wrapper includes disc knives 1, 2, cutting strips S 1 , S 2 , from a web N. An adhesive or solvent applicator 3 contacts the strip S 1  which is then adhered to strip S 2  on roller 14; the reinforced strip S thus formed is brought into contact with a similar applicator 5 and is then adhered to the web N 1  on a roller 33. Pressure applied by a brush 21 and a heated plate 22 improves the adhesion. U-shaped notches 19 may be out on the web N by a punch 20 mounted on a roller 31 thereby providing a grasping tab for the tear strip. A rotary cutter 23 on roller 37 severs the strip adjacent the tabs. The continuous web is severed by a rotary cutter 24 whose blade is such as to cut the web N 1  but avoid the tabs. The strip S can be coloured at intervals E by means of a revolving member 6 so that the grasping tab may be readily identified. Alternatively, if the web material is transparent, the adhesive applied at 3 or 5 may be coloured; or the web N itself may have a coloured margin, Fig. 5 (not shown).
Patent GB-953929-A (GB)
Title: Improvements in and relating to alkylation
IPC: B01J31/08
Filed: 1961-09-01
Abstract: The process for the alkylation of arylhydroxides comprises the steps for continuously introducing a feed stream comprising a mixture of an olefinically unsaturated aliphatic hydrocarbon reactant preferably having from 4-12 carbon atoms, and an arylhydroxide reactant, each having a melting point of less than 150 DEG C., in liquid form to a reaction zone containing a porous mass of strongly acidic cation exchanging resin, alkylating the arylhydroxide with at least a portion of the hydrocarbon, continuously removing the resultant reaction stream from the reaction zone to a cooling zone, continuously cooling the reaction stream to remove heat of alkylation therefrom, continuously withdrawing from the reaction stream a portion thereof equal in volume to the amount of the feed stream combining the remainder of the cooled reaction stream with the feed stream for recirculation to the reaction zone, continuously passing the withdrawn portion to a second stage reaction zone containing a porous mass of strongly acidic cation exchanging resin, further reacting the withdrawn portion to the desired alkylated arylhydroxide and separating the desired alkylated arylhydroxide.  The term "arylhydroxide" includes both mononuclear monohydroxylated aromatic hydrocarbons such as the phenols and polynuclear monohydroxylated aromatic hydrocarbons such as the naphthols.  Specified phenols are phlorols, n-propyl-phenols, o-cumenol, m-and p-hydroxy-cumene, p-tert-butyl phenol, 2, 3-dimethylphenol, 2, 5-dimethylphenol, 2-ethyl-5-methylphenol, 2-methyl-5-isopropylphenol, 2-propyl -5- methylphenol, 2-isopropyl -5- methylphenol, 2, 6-dimethylphenol, 2-methyl-6-ethylphenol, 2, 6-diethylphenol, 2-methyl-6-propylphenol, 3, 4-dimethylphenol, 3-methyl-4-ethylphenol, 3, 5-dimethylphenol, 3, 5-diethylphenol, 2, 3, 5-trimethylphenol and 3, 4, 5-trimethylphenol. Specified naphthols are alpha and beta naphthol.  Specified olefinically unsaturated aliphatic hydrocarbons are propylene, isobutylene, isopentene, hexenes, diisobutylene heptenes, nonenes, dodecenes. Examples are given of the reaction of phenyl and isobutylene to produce p-t-butylphenols, phenol and nonene to produce nonyl phenol, phenol and commercial di-or tri-isobutylene to produce octyl or dodecylphenol.
Patent GB-506073-A (GB)
Title: Improvements in or relating to three-phase transformers and three-phase choking coils
IPC: F02M29/06
Filed: 1937-11-16
Abstract: 506,073. Transformers ; inductances. SIEMENS - SCHUCKERTWERKE AKT.- GES. Nov. 16, 1937, No. 31511. Convention date, Jan. 18, 1937. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 17, 1938.] [Class 38 (ii)] Relates to three-phase transformers or chokes in which the core yokes are subdivided so that the fluxes circulating therein are of such magnitude and phase as to effect balancing out of harmonics arising through saturation of the limbs, and consists in the provision of a delta-connected auxiliary winding, one section 12 of which is arranged on that part 8 of the upper yoke which joins the two outer limbs while the other sections 13, 15 are arranged on those parts 14, 16 of the lower yoke which join the outer limbs to the middle limb, the winding serving to effect a more reliable separation of the yoke fluxes.
Patent GB-895678-A (GB)
Title: Sealing composition
Inventor: HORNING FREDERICK PARKER
IPC: C08L95/00
Filed: 1958-10-02
Abstract: A polymerizable composition, useful for sealing joints, e.g between concrete pavements in aerodromes comprises a polysulphide liquid polymer and coal tar, The polymer is defined as containing at least three disulphide linkages per molecule, and as being at least bifunctional, at least one of the functions being a mercaptan group. Other functional groups which may be present are hydroxy, allyl, carboxyl.  Alkyl or aryl groups may also be present.  Preferred polymers have the formula HS-(RSS)n-RSH, wherein n has a value from 20 to 45 and R is -C2H4OCH2OC2H4-.  The preferred tar is one with a viscosity between 20 seconds Saybolt Furol at 77 DEG  F. and 150 seconds Saybolt Furol at 210 DEG  F. High viscosity tar may be used if thinned with an aromatic solvent.  Extenders or fillers, e.g. hard clay, carbon black, slate flour, silica, limestone or asbestine may be added.  Conventional curing agents may be added, e.g. lead peroxide, an organic peroxide or metallic oxides in presence of hexamethylenetetramine.  Lecithin may be added as a viscosity reducer, and stearic acid as a polymerization retarder.  In a typical example two mixtures are prepared, one containing coal tar, clay, lead peroxide and lecithin, and the other polysulphide liquid, coal tar, clay and lecithin.  The liquids are mixed just before use. Polymerization starts immediately and is complete within 48 hours. U.S.A. Specification 2,466,963 is referred to.
Patent GB-792381-A (GB)
Title: Improvements in or relating to inflators
Inventor: SPIDY ALEX RONALD
IPC: B63C9/19
Filed: 1955-11-04
Abstract: 792,381. Gas storage containers. KIDDE CO., Ltd., W. Nov. 2, 1956 [Nov. 4, 1955], No. 31568/55. Class 8(2). A striker pin 5 for piercing a closure disc 3 of a gas capsule 2 is held in the inoperative position against a spring 11 by a water-soluble plug 15 located between an abutment 17 carried by the pin 5 and a shoulder 14 of the discharge body 1. With a safety pin 20 removed sea water entering apertures 18 dissolves the plug 15 composed of magnesium sulphate and allows the pin to pierce the disc 3 whereon gas passes to an inflatable belt or raft.
Patent GB-735418-A (GB)
Title: An improved detergent composition and method of making same
IPC: C11D1/14
Filed: 1953-11-14
Abstract: A detergent composition is made from a mixture of stearic acid, a sulphonated fatty oil, sodium silicate, caustic soda, a secondary alkyl sulphate and water, the respective proportions being such as to result in a fatty acid content within the range of 4 to 19 per cent. Potassium silicate and caustic potash may replace the sodium compounds.  Optional ingredients may include a sulphated fatty alcohol, a filler such as kaolin or talc, and a perfume such as pine oil.  The sulphonated fatty oil may comprise sulphonated castor oil (Turkey red oil) used as the sodium or ammonium salt.  The secondary alkyl sulphate preferably comprises an aqueous solution of a secondary alkyl sodium sulphate in which the alkyl group contains 10 to 20 carbon atoms.  In preparing the composition, the mixture is heated in a jacketed pan up to, but not exceeding, 195 DEG  F.  The mass is then poured directly into trays or other cooling receptacles and, after setting, cut or stamped into bars or tablets.
Patent GB-848412-A (GB)
Title: Improvements relating to control mechanism for an automatic milling machine
Inventor: SPENCER ROLF EDMUND
IPC: G05B19/4105
Filed: 1955-10-25
Abstract: 848,412. Programmed electric control systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. Oct. 18, 1956 [Oct. 25, 1955], No. 31694/56. Divided out of 848,411. Drawings to Specification. Class 38 (6). Control-mechanism for an automatic machine for generating a profile with a milling-cutter having a convex cutting-face and a predetermined attitude, comprises means responsive to signals which define a 3-dimensional locus for generating signals defining a different locus which takes account of dimensions, or dimensional errors, of the cutter, and is such that if the cutter-centre is caused to describe said different locus, the cutter generates a desired profile determined by the first locus. The machine is as described in Specification 848,411. Specifications 740,071, 796,994, 802,472, 807,643 and 830,462 also are referred to.
Patent GB-538562-A (GB)
Title: Improvements in or relating to refrigerator cabinets
IPC: F25B15/10
Filed: 1939-12-07
Abstract: 538,562. Refrigerating cabinets. ELECTROLUX, Ltd. Dec. 7, 1939, No. 31751. Convention date, Dec. 22, 1938. [Class 29] In a refrigerating cabinet cooled by absorption apparatus with the absorber 21 and the condenser 13 located in. an air shaft along one wall of the cabinet, as set forth in Specification 300,589, [Class 29], the condenser constituted by finned straight pipes extending substantially right across the air shaft is located so that the upper edges of the fins 48 are at least 5 cm. below the upper end of the air shaft, which is formed at the end to reduce resistance to air flow to below that offered by the condenser. Where a rectifier 12 and a pre-condenser 45 are located above the condenser, the common fins 47 are reduced in area around the rectifier to diminish the air resistance and the cooling effect. The air shaft may be formed by extensions 42 of the side walls of the cabinet, and may be open at the back, and guide plates 49 may be fitted at the ends of the condenser tubes. The absorber and the rectifier, as also the pre-condenser may be without fins, and the condenser preferably comprises pipes spaced horizontally in a manner to surround a rising air stream. The gas heat exchanger 18 is shown with a jacket 27 at its end as described in Specification 537,507. Various dispositions of the condenser, rectifier and pre-condenser pipes are described.
Patent GB-247128-A (GB)
Title: Improvements in or relating to wireless signalling
IPC: H03F1/16
Filed: 1925-12-18
Abstract: 247,128. Koomans, N. Aug. 19, 1925. [Convention date]. Vacuum tubes.- A four electrode valve is so proportioned that the capacity between the control grid and the plate is equal to that between the grids. The second grid may be connected to one end b of a centre-tapped coil in the plate circuit to neutralize the capacity between the control grid and plate.
Patent GB-303879-A (GB)
Title: Improvements in or relating to the art of cracking hydrocarbon oils
Filed: 1928-11-03
Abstract: 303,879. Sinclair Refining Co., (Assignees of Herthel, E. C.). Jan. 12, 1928, [Convention date]. Hydrocarbons, cracking. - In a process for cracking oil of the kind in which oil is circulated under pressure through a tubular heating zone 2 and a vaporizing zone comprising a drum from which the vapours pass through a dephlegmator tower 10 to a condenser 14 and separator 15, the oil is circulated continuously with the continuous addition of fresh oil through a pipe 13 until the concentration of pitch in the cycle nearly reaches saturation. The circulation is then stopped by closing a valve 9 in the circulation member 5, but the cracking is continued while supplying fresh oil through the pipe 13 and removing a corresponding amount of pitch laden oil through a pipe 16. The fresh oil together with condensate formed in the tower 10 is admitted to the member 5 through a pipe 12..The valve 9 is operated by an extension 24 passing through a stuffing box 25. A pressure of 125-300 lbs. per sq. inch is maintained in the whole system by a valve 19. A pipe 21 is provided for filling the apparatus at the commencement of the operation and the heating gases may be recirculated over the cracking tubes 2 through a pipe 23. Specification 240,355 is referred to.
Patent GB-1281088-A (GB)
Title: Ammonia synthesis
IPC: B01J8/04
Filed: 1969-06-25
Abstract: 1281088 Ammonia synthesis STAMICARBONNV 25 June 1969 [28 June 1968] 32151/69 Heading C1A A catalytic, exothermic gas phase ammonia synthesis reaction of the conventional type in which part of the reaction gases are used to quench the reaction to the point of extinction and maximum yield is controlled by a signal indicative of a negative value in the gradient of the temperature in the bed as a function of time.