baber/WOPTO huggingface dataset:
Patent GB-898612-A (GB)
Title: Improvements in vehicle headlamp bulbs
IPC: H01K9/08
Filed: 1959-02-10
Abstract: 898,612. Electric incandescent lamps with internal screens. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 10, 1959 [Feb. 13, 1958], No. 4627/59. Class 39(2) A vehicle headlamp bulb having an antidazzle filament arranged in front of the focal point of the reflector and slightly above the optical axis thereof has a strip shaped screen interposed between the filament and the reflector so as partially to obscure the filament from the reflector, the screen being so disposed in relation to the filament and of such width that it produces in the light beam from the filament a sector shaped shadow zone which extends over the offside of the road has a horizontal boundary and a boundary extending upwards at 30 degrees to the horizontal. The headlamp may comprise a helical main filament 7 of arcuate form mounted at the focal point of the reflector (not shown) and a straight helical filament 8 parallel to and slightly above the optical axis 0-0 of the reflector and in front of the focal point thereof. A narrow strip mask 9 extends alongside the filament 8, the rear end being bent round towards the optical axis. The filaments 7, 8 are carried by supply wires 4, 5 respectively and by a common supply wire 3 which also serves to support the mask 9.
Patent GB-1339111-A (GB)
Title: Hydroxy-ether-carboxylic acids
IPC: C11D3/00
Filed: 1972-02-02
Abstract: 1339111 Hydroxy ether carboxylic acids HENKEL & CIE GmbH 2 Feb 1972 [23 Aug 1971] 4790/72 Heading C2C Compounds of formula in which R 1  and R 2  represent H atoms or COOH groups which may be the same or different, Z is 0 or 1, and m, n, and o are each 0 or 1, provided that at least one of m, n, and o is 1 and at least two carboxyl groups and one hydroxyl group are present in the molecule, specifically monoo-carboxymethyl tartaric acid and 1,2-bis-ocarboxymethyl glycerine are prepared by reacting a compound of formula in which R 3  and R 4  represent H-atoms or ester groups, X represents OH groups or halogen atoms, and q is zero or 1, and which contains at least 2 hydroxyl groups, with a diazoacetic acid ester in the molar ratio 1 : 1 to 1 : (n - 1), where n = number of OH groups, in the presence of a Lewis acid and saponifying the resulting product. An alternative preparation is by reacting a glycolic acid ester with an epoxy compound such as epoxy succinic acid esters in the presence of an acid alkyloxylation catalyst and saponifying the result e.g. with sodium hydroxide solution or by acidic cation exchanger. Starting materials may be glycerine, glycerine-α-monochlorohydrin, and esters from glycerine, tartaric, trihydroxyglutaric and erythronic acids and products may be 1,2-bi.s-o-carboxymethyl glycerine, mono-o-carboxymethyl glycerine, tartaric, erythronic, -1,2,3, trihydroxyglutaric acids and 1,2-bis-o-carboxymethyl-1,2,3-trihydroxyglutaric acid. The first method produces mixtures of esters and lactones, the ring of which may be opened by sodium ethylate to form the ester or under saponification conditions the acid. Examples describe the preparation of mono-ocarbethoxymethyl tartaric acid diethyl ester with 5,6-dicarbethoxy-1,4-dioxanone-2, bis-ocarboxymethyl glycerine-α-monochlorohydrin and bis-o-carboxymethyl-glycerine.
Patent GB-770890-A (GB)
Title: Improvements in and relating to magnetic ferrite materials
Inventor: QUANTIE CHOW
IPC: C04B35/26
Filed: 1953-02-20
Abstract: 770,890. Magnetic compositions. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 22, 1954 [Feb. 20, 1953], No. 4805/53. Class 38 (2). A ferromagnetic ferrite material having a permeability of at least 600 comprises in mol. percentages 48-52 Fe 2 O 3 , 20-30 ZnO, 5-25 MgO and at least 2 of CuO. In making a ferrite of the mol. proportions, 50 Fe 2 O 3 , 25 ZnO, 15 MgO, 10 CuO, suitable weight of Mg(OH) 2  and oxides of the other metal are ball-milled, with water, dried, fired at 1000‹ C. for four hours in an oxidising atmosphere, ground and sieved, mixed with 3 per cent by weight of stearic acid, compressed and sintered at 1380‹ C. for four hours. Specification 740,755 is referred to. Reference has been directed by the Comptroller to Specification 703,676.
Patent GB-525132-A (GB)
Title: Improvements in or relating to beer engine and like pumping apparatus
IPC: B67D1/02
Filed: 1939-02-14
Abstract: 525,132. Pumping apparatus for beer engines &c. BARRETT, J. E. Feb. 14, 1939, No. 4852. [Class 102 (i)] In a beer engine or like pumping apparatus, a piston 2 is reciprocated within a cylinder 1 carried by a bung member 4 adapted to be inserted in a cask or barrel, by means of a handle 25, one or a pair of pivoted members 24, and inclined, arcuate, or cam surfaces cooperating with projections, rollers, or the like. The bung 4 is provided with a shut-off tap 5, a driving nose 6, and an integral extension 3 containing a non-return or gravity-operated valve 8. The piston rod 10 is freely connected to the piston, passes through the upper end 18 of the cylinder carrying a delivery nozzle 20, 21, and is connected to a U-shaped frame 14, the arms 15 of which are guided for vertical movement on the cylinder 1 by means of a part-cylindrical member 17, and which arms carry detachable rollers 16 engaging in arcuateshaped recesses 26 in the pivoted members 24. The piston 2 is provided with a pair of conical non-return gravity valves 27, the upward movement of which is limited by brackets 30 on the piston carrying depending guides 29. The cylinder 1 is detachably connected to the extension 3 by means of a pair of lugs 33 engaged by ears 34 on a stirrup-like member 35 having a screw 36 to engage in a recess 37 in a cap 9 on the extension 3. The lugs 33 may have members 38 to embrace the ears 34.
Patent GB-377125-A (GB)
Title: Double twist twisting spindle
IPC: D01H7/86
Filed: 1932-02-18
Abstract: 377,125. Twisting apparatus for imparting two twists per revolution. BARMER MASCHINENFABRIK AKT.-GES., 12, Mohrenstrasse, Oberbarmen, Wuppertal, Germany. Feb. 18, 1932, No. 4887. Convention date, Oct. 27, 1931. Addition to 377,113. [Class 120 (ii).] In the twisting apparatus described in the parent Specification, the edge 5<1> of the threadstoring ring which revolves with the spindle overlaps the edge of the guiding element 7 which does not rotate with the spindle, whereby the chafing of the thread on a stationary edge is prevented.
Patent GB-466157-A (GB)
Title: Improvements relating to the dyeing of cellulosic fibrous materials
IPC: D06P1/66
Filed: 1935-09-18
Abstract: The fastness to water and to washing of dyeings and prints with acid wool dyestuffs or acid sulphuric esters of leuco vat dyestuffs obtained by the dyeing or printing process described in the parent Specification is improved by an after-treatment with an organic compound of high molecular weight containing pentavalent nitrogen and suitable for improving the fastness of substantive dyeings to water and washing.  Such compounds are, for example, (a) those prepared according to the processes described in Specifications 219,304, 294,582, [both in Class 2 (iii)], 356,218 and 379,396; (b) those the use of which for the after - treatment of dyeings is described in Specifications 398,175 and 435,388; (c) those having substantive properties; (d) those used according to the parent Specification for treatment of the cellulose fibres prior to the dyeing.  The following examples are specified: (1) a viscose artificial silk fabric, treated with palm nut oil methylaminoacetic acid dodecylamide chloromethylate and dyed with Acid violet 6B, is treated with a solution of a peralkylated polyethylenediamine obtainable according to Specification 435,388; (2) cotton, treated with dimethylaminoacetic acid oleylamide chloromethylate and dyed with Wool fast blue B1, is treated with a cold solution of the substantive quaternary ammonium compound of the formula <FORM:0466157/IV/1> and is hydroextracted and dried; (3) a viscose artificial silk fabric, treated as in (1) and dyed with Acid anthracene red 3B, is treated with a solution of octodecylpyridinium bromide.  Quaternary ammonium compounds.--The substantive compound of example 2 is obtained by condensing 4-dimethylaminoaniline with 4-nitrobenzoyl chloride, reducing the nitro group, performing such condensation and reduction 4 times in all and finally permethylating the terminal amino groups.
Patent GB-226401-A (GB)
Title: Improvements in and relating to toys
IPC: A63H13/06
Filed: 1924-02-27
Abstract: 226,401. Edgar, E. C. M. Feb. 27, 1924. Mechanical and like toys.-A toy comprises one or more figures a provided with looselyjointed limbs and carrried by resilient supports b which are mounted on a handle c<1>. A slight movement imparted to the handle will cause the figures to dance or imitate boxers. The trunk a of each figure is bored longitudinally, as shown in Fig. 2, to receive the support b which is secured thereto at or about the centre, the axial borings allowing movement of the trunk. The support b consists af tightly-coiled wire spring, preferably an outer spring coiled upon an inner spring b<1> which is wound in the opposite direction.
Patent GB-1105952-A (GB)
Title: Improvements relating to electric or electronic apparatus components securable by means of screws
Inventor: SHOREY LOUIS WILLIAM
IPC: H02B1/044
Filed: 1964-02-06
Abstract: 1,105,952. Switch bases. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 30 April, 1965 [6 Feb., 1964], No. 5093/64. Heading H1N. [Also in Division F2] A switch mounting- plate 2 of resilient plastics material has a reduced diameter portion 6 in each mounting hole 4 in which the headed mounting screw 5 is an interference fit, to prevent its falling out but not to impede it being screwed up to mount the switch 3 on a panel 7, the screw 5 otherwise being a clearance fit in the hole 4 and being threaded along the entire length of its shank. The hole 8 in panel 7 may be tapped as shown or, alternatively, screws 5 may be self-tapping. Both mounting plate 2 and base-plate 1 are nylon, and the reduced diameter portion 6 is an annular lip at one end of the hole 4.
Patent GB-1094482-A (GB)
Title: Improvements in or relating to blast nozzles for blowing media into fusible metals
IPC: B22D1/00
Filed: 1965-02-05
Abstract: 1,094,482. Blast nozzles. W. HUFNAGL. Feb. 5, 1965 [Feb. 6, 1964], No. 5101/65. Heading F4B. A blast nozzle for the introduction of gaseous, liquid or pulverent media into a metal melt comprises at least in part a number of capillary tubes. The tubes made by extrusion and sintering from metallic substances, ceramics, carbides or nitrides may be clustered together in circular or annular formations or else spaced apart, the interspaces forming passages for cooling or introduced media. The tubes may be rectilinear, dog-legged, V-shaped or 8-shaped or follow a spiral or helical configuration. They may also be of different lengths.
Patent GB-924575-A (GB)
Title: Process for the stabilization of phosphoryl tri-(dimethylamide)
IPC: C07F9/22
Filed: 1961-02-10
Abstract: In a continuous process for removing acetylene from an acetylene-containing gas stream which comprises absorbing the acetylene in hexamethyl phosphoramide at or about room temperature and desorbing the acetylene by heating the resulting solution, the circulating solvent is passed through a bed of a solid inorganic basic compound, e.g. a hydroxide, basic oxide or basic salt (including salts of organic acids) of an alkali or alkaline earth metal or aluminium.  The bed may particularly be situated after the acetylene stripper and a further bed may be included prior to the stripper.ALSO:Hexamethylphosphoramide is stabilised against thermal degradation by treating it continuously, or periodically and intermittently, with an inorganic basic compound, particularly a hydroxide, basic oxide or basic salt (including salts of organic acids) of an alkali or alkaline earth metal or aluminium.  The basic compound may be used as a solid or as an aqueous solution or slurry. The treatment may be effected at a temperature above 100 DEG C., e.g. 110-200 DEG C.  The above treatment is particularly designed for use in a continuous process for removing acetylene from an acetylene-containing gas stream involving absorption of the acetylene in hexamethylphosphoramide (see Group III).
Patent GB-588650-A (GB)
Title: Improvements in or relating to electrical insulating compositions
IPC: H01B3/04
Filed: 1945-03-02
Abstract: A composition comprises a mixture of lead oxide, boric acid, and alkaline carbonates such as those of sodium, potassium and p  barium, to which may be added a small amount of cryolite.  The mixture may be fused, run into cold water and thereby granulated, ground into a fine powder, mixed with finely ground mica of about 200 mesh and a small amount of water, and moulded to give the final composition. Alternatively, a mixture of lead oxide and boric acid may be fused and run into cold water, the cooled product being ground to a fine powder and mixed with a powder of cryolite, boric acid and alkaline carbonates and with powdered mica, a small amount of water being added and the composition being formed by moulding.
Patent GB-289422-A (GB)
Title: Improvements in vacuum tubes
IPC: H01J21/20
Filed: 1928-02-20
Abstract: 289,422. Kimmig, W. S. April 27, 1927, [Convention date]. Vacuum tubes.-A thermionic valve has an elongated bulb, supports extending from both ends of the bulb, one or more of these supports extending between the ends, sets of grids and anodes mounted on the supports, and a single filament cathode extending between the ends of the bulb. As shown in Fig. 1, a cathode b is mounted on two supports e, one of which extends between re-entrant stems j, j<1>, the grid c and anode d of one set are mounted by supports on the stem j, the grid c<11> and anode d<11> of another set are mounted on the stem j', and the grid c' and anode d' of the middle set are mounted on supports g<1>, h<1> extending between the stems. Four leads pass through each stem and a 4-prong cap may be mounted on one end of the bulb. The Specification as open to inspection under Sect. 91 (3) (a) comprises the valve shown in Fig. 15 (Cancelled), in which three sets of fila. ments b, grids c and anodes d are mounted on a single stem k, and the filaments are connected in series through supports p, n. Two leads for the filaments and leads for one grid and anode are connected with the usual contact plugs on a cap, and the other grids and anodes are connected with four terminals on a flange on the cap. This subject-matter does not appear in the Specification as accepted.
Patent GB-481228-A (GB)
Title: Device for ensuring the permanent gripping of nut and bolt connections
IPC: F16B39/14
Filed: 1937-02-23
Abstract: 481,228. Locking nuts. SOC. DE BOULONNERIE ET DE MATRICAGE DE PRECISION. Feb. 23, 1937, No. 5451. Convention date, April 2, 1936. [Class 89 (i)] A resilient compensating member, interposed between the main nut and the work, is used in conjunction with the lock nut described in Specification 429,238. The compensating mem-. ber comprises a curved washer 1 having a central rigid part 4, a peripheral rigid part 5 and an intermediate elastic zone, the elasticity being imparted by the provision of perforations 2 or by providing a thin part in said zone. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 480,516, [Group XXIII], This subject-matter does not appear in the Specification as accepted.
Patent GB-677603-A (GB)
Title: Making polishing discs
IPC: B24D13/08
Filed: 1951-03-07
Abstract: 677,603. Polishing-discs. GENERAL MOTORS CORPORATION. March 7, 1951 [March 17, 1950], No. 5483/51. Class 60. A polishing-disc 32, comprising one or more pairs of layers of fabric 11 of annular form, is made from a cylinder 12 formed by rolling a strip of the fabric and is compacted around the inner edges on a cylindrical former 21 by the application of heat and pressure. The cylinder 12, Fig. 3, is contracted intermediate its ends onto a former 14 by a wire 16 which is then removed and the sides of the annulus thus formed stitched together adjacent their inner edges. A plurality of discs 32, Fig. 6, are wetted adjacent their inner edges before being spaced apart by rings 27 on the former 21. A hole 31 in the bore 26 of the hollow former 21 admits hot fluid that evaporates the moisture in the discs as they are compressed by a die 29. The compacted discs are then secured against a shoulder 37, Fig. 7, on a shaft 33 by a nut 36.
Patent GB-456247-A (GB)
Title: Improvements in fly screens for windows and the like
IPC: E06B9/52
Filed: 1936-02-24
Abstract: 456,247. Window-screens. LAVIN, P., and LAVIN, C., 28, Maddison Street, Jeppestown, Johannesburg, South Africa. Feb. 24, 1936, No. 5486. [Class 20 (iii)] [See also Group XIV] A fly-screen applicable 'to casement and other hinged windows comprises an upper fixed section 7, a lower fixed section 8, and a lower horizontally sliding or hinged section 9 allowing of access to the window catches &c., the framework 6 of the screen being adjustable in an intermediate distancing frame 2 attached to the window casing 1. The fixed sections 7, 8, are secured to the frame 6 and to a crossbar 17 by screws, and channels 18 for the sliding section 9 are arranged in the cross-bar and the lower side of the frame. The distancing frame 2 has keyhole slots engaging studs 4 on the window casing and horizontal slots 10 in which engage clamping screws 11 fixed in the screen frame 6. The wire mesh 19 of each section is secured in its frame 21 by a rectangular member 20 pressed into a peripheral recess at the back of the frame. A finger grip 22 is provided on the sliding section. In a modification, the sliding section is replaced by a hinged section.
Patent GB-525416-A (GB)
Title: Improvements in metal tubing and the manufacture thereof
IPC: B21C3/16
Filed: 1939-02-20
Abstract: 525,416. Making tubes. DIXON, M. G. (National Tube Co.). Feb. 20, 1939, No. 5631. [Class 83 (iv)] Fillings.-Small diameter tubes for hypodermic needles &c. are made by cold-reducing whilst filled with a viscous or plastic substance to act as an external support and removing the heat resulting from the cold-reducing sufficiently promptly to maintain the viscosity of the substance to a degree permitting it to function as such internal support and prevent extrusion from the ends of the blank. The filler may consists of 50 per cent. paraffin wax and 50 per cent. of an asphalt sold under the Registered Trade Mark " Filsonite and may be inserted preformed or under pressure or in the molten state.
Patent GB-552413-A (GB)
Title: Improvements in or relating to the treatment of hydrocarbons
IPC: C07C2/10
Filed: 1940-03-29
Abstract: 552,413. Polymerized hydrocarbons. STEVENS, A. H. (Phillips Petroleum Co.). March 29, 1940, No. 5721. [Class 2 (iii)] Olefines having not more than five carbon atoms in the molecule are converted into volatile polymers by being passed alone or together with paraffins containing more than five carbon atoms over a solid polymerisation catalyst. Such pressures and temperatures are used that the reactants are kept substantially in the liquid phase and a portion of the untreated products is mixed with the olefinic feed and returned to the reaction zone. In a modification, active olefines such as isobutylene or branched amylenes are polymerised in a separate catalytic chamber before the remaining gases are treated. Catalysts mentioned are hydrous silica impregnated with aluminium chloride and fullers earth and hydrous silica associated with alumina. In the Figure hydrocarbons containing olefines enter a fractionating column 1 at a sufficient pressure to maintain substantially the whole of the olefines in solution in the liquid descending the column. Vapours which are withdrawn pass through a condenser 2, the condensed hydrocarbons being withdrawn through a separator and pipe 4 and, after mixing with a hot fraction taken by means of pipe 5 from the column 1, in part returned to the latter and in part passed to a catalytic chamber 7. When column 1 contains a high proportion of hydrocarbons of low molecular weight requiring high pressures it may be necessary to pass the gases coming from the column through a heater 11. The products of the polymerisation, still in the liquid state enter the column through pipe 8, the amount of higher non-volatile polymers being reduced by recycling part of the products by means of pump 9. The second catalytic chamber 13 is used when branched lower olefines are present in the hydrocarbons employed. Inert paraffins such as naphtha or gasoline may be introduced through pipe 14. Specification 536,528 is referred to.
Patent GB-1364881-A (GB)
Title: Grammophone record sleeve assemblies
IPC: B65D85/57
Filed: 1971-03-01
Abstract: 1364881 Packages; boxes N J GARROD 28 Jan 1972 [1 March 1971 30 March 1971] 5727/71 and 8256/71 Headings B8C and B8P A gramophone record sleeve of the kind disclosed in Specifications 1,231,771 and 1,119,823 having double-walled spines 4 is provided with spacer elements 7, 8 on an inner sleeve 2 to prevent the centre portion of record 1 from becoming dished when the sleeves are stacked. The thicknesses of elements 7, 8 correspond to those of folded portions 5, 6. In Fig. 3, outer sleeve 3 has arcuate cut-outs in portions 5a and 6 to receive record 1. In both embodiments, elements 7, 8, 9 may be formed as corrugations of various shapes on the inner sleeve. Reference has been directed by the Comptroller to Specification 1,119,823.
Patent GB-1029152-A (GB)
Title: Improvements in or relating to emulsifying agents and their use
IPC: C11D13/02
Filed: 1963-02-12
Abstract: An emulsifying agent suitable for low temperature aqueous emulsion polymerization of unsaturated hydrocarbons comprises a mixture of 25% to 75% by weight of a soap of disproportionated rosin and 75% to 25% of a soap of dimerized fatty acid.  The mixture may be prepared by treating a mixture of rosin acid and fatty acid (which may be a tall-oil fraction) with SO2 and an alkali with heating, and neutralizing.  In examples, mixed potassium soaps are used.ALSO:An emulsifying agent suitable for low temperature aqueous emulsion polymerization of unsaturated hydrocarbons comprises a mixture of 25 to 75% by weight of a soap or disproportionated rosin and 75 to 25% of a soap of dimerized fatty acid.  The mixture may be prepared by treating a mixture of rosin acid and fatty acid (which may be a tall-oil fraction) with SO2 and an alkali with heating, and neutralizing. In examples, mixed potassium soaps are used in the polymerization of styrene-butadiene-1,3 mixtures in the presence of ferrous sulphate, potassium pyrophosphate, tert-dodecyl mercaptan and p-menthane hydroperoxide.
Patent GB-437864-A (GB)
Title: Process of manufacturing refined hydrocarbons and hydrocarbon mixtures
IPC: C10G17/02
Filed: 1935-02-22
Abstract: In the refining of hydrocarbons, e.g. motor benzol or cracked benzine without loss of desirable unsaturateds, by contacting the hydrocarbon vapour and steam with a sulphonic acid of a hydrocarbon or of a halogen substituted hydrocarbon which has not more than 10 carbon atoms in the molecule, is free from sulphuric acid, and is suspended or dissolved in an inert organic medium liquid at the working temperature, the concentration of the sulphonic acid in the organic medium is at most 10 per cent, and the temperature is sufficiently high to prevent substantial hydration of the sulphonic acid. Refining by other methods, e.g. with lye, acid, or adsorbents may precede and/or follow. Sulphonic acids specified are those of benzene, b -naphthalene, toluene, xylene, and p-chlorbenzene and methionic acid.  Organic media suitable are Edeleanu extract, gas oil, lubricating oil, and distillation residues of pressure-distillates.  The apparatus should be made of or lined with stainless steel, enamel, or earthenware to prevent the formation of oxides.  In an example, pressure distillate is fractionally distilled with steam, and the mixture of benzine vapour with about 10 per cent of steam passed at 200 DEG  C. through a series of columns, filled with Raschig rings, in countercurrent with a 2 per cent solution of benzene-sulphonic acid in lubricating oil, fresh sulphonic acid being added between the columns.  Washing with sodium carbonate or hydrate follows.