baber/WOPTO huggingface dataset:
Patent GB-1502419-A (GB)
Title: Production of smoking materials film
IPC: A24B15/18
Filed: 1974-05-02
Abstract: 1502419 Smoking material IMPERIAL CHEMICAL INDUSTRIES Ltd 14 March 1975 [2 May 1974] 19245/74 Heading A2C [Also in Division C3] A smoking material having ridges on one surface is produced by feeding to a roll mill a pasty mass containing filler, binder and water (see Division C3) having a phase angle of 2 to 45 when tested under oscillatory shear conditions. The roll mill has a nominal clearance of 0.04mm while the ratio of the peripheral speeds of the first, second and third rolls of the roll mill is in the range 1:2:4 to 1:4:25.
Patent GB-687476-A (GB)
Title: Processes of recovering streptomycin from an aqueous solution thereof
IPC: C07H15/238
Filed: 1948-07-19
Abstract: Streptomycin is recovered from an aqueous solution thereof by contacting the solution with an ion exchange resin deriving its exchange capacity from carboxylic groups, and eluting the adsorbed streptomycin with an electrolyte solution, e.g. an acid such as hydrochloric acid, or a solution of calcium chloride.  The resin, which is preferably employed in the form of a column, may subsequently be regenerated for use in a further adsorption. Sometimes this may be accomplished simultaneously with elution, but it is preferably effected by treatment with alkali, especially ammonium hydroxide, in order to place the resin on the cation cycle. In an example, a carboxylic acid ion exchange resin is placed in a column, washed with hydrochloric and then with water, and treated with ammonium hydroxide followed by again washing with water, a filtered broth from a Streptomyces griseus fermentation is passed through the column, which is then again washed with water and eluted with hydrochloric acid, the eluate is neutralized with sodium hydroxide solution and diluted with methanol, and the streptomycin is precipitated by the addition of acetone.  Specification 638,664 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the use of ion exchange resins other than those of the carboxylic acid type, e.g. those of the sulphonic acid and silicate types.  Additional examples using these types are given. This subject-matter does not appear in the Specification as accepted.
Patent GB-498319-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B19/14
Filed: 1937-07-12
Abstract: 498,319. Hair-clippers. FAIREY, C. R. July 12, 1937, No. 19296. [Class 131] A safety razor for shaving arm-pits &c. comprises a rotary cutter f having radial slots g and disposed between a toothed guard-plate c and a cover-plate k having teeth m extending, like the teeth d of the plate c, parallel to a diameter of the rotary cutter. An electric motor drives the spindle a of the rotary cutter, which may be housed in a recess in the guardplate. The tips of the teeth m of the coverplate k extend beyond the teeth of the cutter.
Patent GB-127782-A (GB)
Title: Improvements relating to Watertight Glands.
Inventor: BARBOUR RALPH HENRY
IPC: F16J15/34
Filed: 1918-11-23
Abstract: 127,782. Barbour, R. H., and Partridge, H. R. C. Nov. 23, 1918. Stuffing-boxes, substitutes for. - A cap D, fitting on the end of a shaft A passing through a casing B, has an extension on which a nut G is screwed, the casing being clasped between the nut and a flange on the cap. The wearing surface of the cap D is grooved at E to receive a packing-ring. The nut G may carry a similar packing H. When the wall B is horizontal, it may be formed with an upturned lip C.
Patent GB-404027-A (GB)
Title: Improvements in insulating compositions for submarine electric signalling cables
IPC: H01B7/14
Filed: 1932-07-08
Abstract: An insulating material for long submarine cables for high frequency signalling comprises a hydrocarbon of the general formula (C5H8) and a plasticising material consisting of butyl stearate and/or ethyl abietate, the ester being synthetically prepared from the alcohol and acid.  The preferred amount of plasticiser added is from 5-30 per cent.  Hydrocarbons of the above general formula include natural or synthetic rubber, deproteinized rubber, gutta percha, and balata, and the wholly or partly purified hydrocarbons thereof.  The synthetic esters take the place of natural resinous esters removed from the rubber &c.  The Specification as open to inspection under Sect. 91 comprises also the use of any synthetically prepared ester, and includes methyl and propyl abietate, isobutyl stearate, butyl and isobutyl palmitate, and butyl and isobutyl oleate.  This subject-matter does not appear in the Specification as accepted.
Patent GB-440887-A (GB)
Title: Process for the manufacture of safety-glass
IPC: B32B17/10
Filed: 1934-07-02
Abstract: 440,887. Compound glass. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(Deutsche Celluloid-Fabrik; Eilenburg, Germany) July 2, 1934, No. 19467. [Class 140] Compound glass is made by coating, e.g. by spraying or brushing, the surface of each of two glass plates with an aqueous dispersion of a water-insoluble vinyl polymerization product containing no solvent or emulsifying agent, removing the water, e.g. with the aid of heated air, assembling the glass plates with the coated sides together, and uniting by heat and pressure. The glass plates, after cleansing, may be prepared with gelatine or a similar substance before coating with the dispersion. A mixed polymer of vinyl chloride and an acrylic acid ester, e.g. methyl acrylate, may be used.
Patent GB-1515913-A (GB)
Title: Water proofing compositions for cement mortar or concrete
IPC: C08K3/10
Filed: 1975-05-09
Abstract: 1515913 Water - proofing compositions HAYAKAWA RUBBER CO Ltd 9 May 1975 [15 June 1974] 19530/75 Heading C3V A water-proofing composition to be used in contact with mortar, cement or concrete has (a) a hardeness of 30-70 (JIS Hardness tester), and comprises 65-40% by weight of reclaimed butyl rubber, 30-50% by weight of an inorganic filler, a softener and an antixoidant; or (b) has a semi-solid consistency of 50-100 at 25‹ C. (JIS K2530 penetometer) and comprises 35-15% reclaimed butyl rubber, 40-50% by weight of an inorganic filler, 20-35% by weight of at least one thermoplastic synthetic resin, a low molecular weight polymer of isobutylene and a softener; or (c) has a caulk consistency of 200-400 at 25‹ C. and comprises 5-14% of reclaimed butyl rubber, 50-60% by weight of an inorganic filler, 15-20% of a thermoplastic synthetic resin or a low molecular weight polymer of isobutylene, 10-20% by weight of a softener and a solvent; or (d) a Brookfield viscosity at 25‹ C. of 100-2000 c.p.s., and comprises 10-20% by weight of reclaimed butyl rubber, 5-15% by weight of an inorganic filler, 1-15% by weight of a thermoplastic synthetic resin or a low molecular weight polymer of isobutylene and a solvent.
Patent GB-629424-A (GB)
Title: Improvements in and relating to ventilating devices and like air supply and distributing devices
IPC: F24F13/062
Filed: 1947-07-22
Abstract: 629,424. Ventilators. FITT, T. C. July 22, 1947, No. 19557. Addition to 566,605. [Class 137] Ventilating and air distributing devices according to the parent Specification are modified in that the screen is spaced away from and inwardly with respect to the inner ends of the diffuser plates and may embody an air heater. The screen may be positioned at a point in the conduit where its axial direction is inclined, at any angle up to 45 degrees, to the axis of symmetry of the diffuser. In the form shown, a nested plate diffuser 11 is connected to one end of an air conduit 19. A finned tube heater unit 10 forms a screen for the air and is constructed so that the total number of elongated openings formed between the fins is large compared with the number of openings provided between the concentric diffuser plates. A fan 28 drives air through the heater screen which breaks up the air stream and renders its velocity substantially uniform over the whole cross section of the conduit 19, through which the air passes to the diffuser, which can then distribute it without the production of localised draughts.
Patent GB-834543-A (GB)
Title: Improvements relating to linear electron accelerators
Inventor: CROWLEY-MILLING MICHAEL CROWLE
IPC: H01J29/64
Filed: 1955-07-07
Abstract: 834,543. Linear particle accelerators. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. July 6, 1956 [July 7, 1955], No. 19693/55. Drawings to Specification. Class 39(1). X-ray generating equipment comprises a linear electron accelerator in combination with a magnetic focusing assembly which comprises a first magnetic lens having four magnetic polepieces equi-spaced around the path of the beam with their axes radial to this path, the pole-pieces being of alternate polarity, and a second similar magnetic lens rotated through 90 degrees with respect to the first. The first lens has a shorter axial length and/or lesser magnetic field strength than the second and the lenses are effective to ensure that the beam is brought to the same focal point in the two principal planes, which focal points are coincident with the target. This arrangement is said to focus the electron beam to a small diameter with relatively little loss of beam current and without introducing noticeable astigmatism, thereby gaining sharpness in radiographs while using relatively short exposure times. The magnetic lenses are preferably of the kind described in Specification 834,540. Theoretical conditions for no astigmatism are given. Specification 762,375 also is referred to.
Patent GB-459788-A (GB)
Title: Improvements in the manufacture and production of urea-formaldehyde resins
IPC: C08G12/42
Filed: 1935-07-10
Abstract: Methylol-urea or -thiourea compounds are condensed in solution in an acidified monohydric alcohol with the addition of cyclic alcohols containing no phenolic hydroxyl groups, the solvent expelled, and the product heated till soluble in aromatic hydrocarbons.  Suitable cyclic alcohols are benzhydrol, benzoin, borneol, iso-borneol, fenchyl alcohol, menthol, cyclohexanol, methylcyclohexanol and abietinol.  The cyclic alcohol may be added before, during, or after the initial condensation.  The resins may be used alone, with cellulose esters and ethers and softening agents, or with drying oils for the production of lacquers and adhesives, the diluents of which may consist solely of esters, ketones, or hydrocarbons.  They may also be used with or without plasticizers to produce moulded articles.  In examples: (1) a solution in butanol and ethanol of dimethylolurea is condensed in the presence of urea nitrate with abietinol, the product heated, and dissolved in toluene; (2) a solution in butanol of a urea- or thiourea-formaldehyde resin is condensed with isoborneol, heated in the presence of phthalic anhydride, and dissolved in toluene; (3) a solution in butanol of dimethylol-urea or -thiourea is condensed with abietinol, the product heated with phthalic anhydride and dissolved in turpentine and linseed oil; (4) a solution in butanol of dimethylol-urea or -thiourea is condensed with methylcyclohexanol or cyclohexanol, heated in presence of phthalic anhydride and dissolved in butyl acetate; (5) a solution in butanol of a urea- or thiourea-formaldehyde resin is condensed with benzhydrol, heated in the presence of phthalic anhydride, and dissolved in toluene; (6) to a solution in ethanol and butanol of paraformaldehyde is added methylcyclohexanol and urea, the condensation carried out and the solvent removed by heating.  Specifications 261,029, 301,696, 319,251, 332,634, [all in Class 2 (iii)], 356,731, 404,664, and 433,536 are referred to.
Patent GB-1003968-A (GB)
Title: Improvements in and relating to vacuum-milking apparatus
Inventor: SKETT HERBERT EDWARD
IPC: A01J5/06
Filed: 1963-05-17
Abstract: 1,003,968. Teat-cup liners. R. J. FULLWOOD & BLAND Ltd. Jan. 15, 1964 [May 17, 1963], No. 19823/63. Heading AlM. A teat-cup liner has a tubular body portion 2 and an enlarged hood portion 1 provided with resilient moulded flaps 9 arranged at intervals around the mouth of the liner and serving to grip the cow's teat. Indents 10 on the flaps constitute suckers whereby the gripping capacity of the flaps is increased. The liner may be formed with shoulders 5 which serve to seal off the space between the body portion 2 and an outer rigid shell or be formed with an annular recess to receive the shell. The body portion 2 is of flattened cross-section and the liner is formed of synthetic rubber.
Patent GB-1459844-A (GB)
Title: Shelf edge display adapters
IPC: G09F7/08
Filed: 1974-05-07
Abstract: 1459844 Display devices NORMAN PENDRED-CELLGRAVE 7 May 1974 20033/74 Heading G5C A channel 2 fixed on a shelf edge for receiving display tickets in slots 3 is adapted to receive wider tickets by use of an adaptor 4 of resilient sheet having a plain edge 5, an inturned edge 6 forming an open slot, and tongues 7, 8, 9 whose free ends are at different distances from, and remote from plain edge 5. In use, edge 5 is inserted in one slot 3 while the other is engaged by those tongues corresponding to the width of channel 2. The ticket then engages slots 3 and 6.
Patent GB-919132-A (GB)
Title: Improvements in or relating to two-stroke internal combustion engines
IPC: F01L3/20
Filed: 1961-06-02
Abstract: 919,132. Valves. INNOCENTI SOC. GENPER L'INDUSTRIA METALLURGICA E MECCANICA. June 2, 1961 [June 15, 1960], No. 20043/61. Addition to 883,541. Classes 7(2) and 7(6) The distributer valve arrangement described in the parent Specification is modified by having, for each cylinder of a two-stroke engine having other cylinder configurations, an independent valve body 22 accommodated by a seat 3 formed in the crank-case, the axis of each seat lying in a plane perpendicular to the crank-shaft, each seat being disposed in the crankcase on the opposite side of the crank-shaft to the cylinder. Specification 919,133 also is referred to.
Patent GB-923873-A (GB)
Title: Improvements in and relating to paper making machinery and processes
IPC: G05D22/02
Filed: 1961-06-02
Abstract: 923,873. Automatic control of humidity. INDUSTRIAL NUCLEONICS CORPORATION. June 2, 1961 [June 27, 1960], No. 20069/61. Class 38 (4). In a moisture control system for use in a process for the manufacture of extensible paper, a paper web 10 is fed through a stuff gate 12, a Fourdrinier section 14, a press 16 to a dryer section 18 comprising a main dryer A and a final dryer C. Between the main and final dryers is situated an extensible unit 20 in which the paper web is passed between a rubber blanket and a drum and thereby subjected to forces which tend to compress and reorientate the individual fibres of the web. The weight of the partially dried web from the unit 20 is detected by a radiation gauge 40 and the weight of the dried web is detected by a radiation gauge 42. The outputs of the gauges 40, 42 are fed to a ratio-computer 44 from which an output M is derived representative of the percentage moisture of the web at the output of the extensible unit. Since the moisture content of the paper from the final dryer is between 4 and 7 % a correction factor is needed in the computation and is derived from a settable potentiometer or a moisture gauge 45. The output M is compared in a device 46 with a desired value signal generated by a target setter 48. An error signal from the device 46 is fed to a controller 50 energizing a two-phase servomotor 52 through a delay device 54 which compensates for the transportation lag of the system. The servomotor 52 actuates a regulator 56 through a gear reduction unit 58 to control the temperature or pressure of steam flowing from a supply 60 into the main dryer. In a modification, Fig. 4, not shown, the gauge 40 is situated between the main dryer and the extensible unit. Specification 887,271 is referred to.
Patent GB-534462-A (GB)
Title: A process for the dewaxing of mineral oils
IPC: C10G73/06
Filed: 1939-07-12
Abstract: 534,462. De-waxing oils. AKTIEBOLAGET SEPARATOR-NOBEL. July 12, 1939, No. 20310. Convention date, July 14, 1938. Drawings to Specification. [Class 91] In a process for the de-waxing of mineral oils or fractions or residues thereof by adding a solvent or a mixture of solvents liquid at normal temperatures and chilling the waxy oil solution to de-waxing temperature, the solvent or mixture of solvents is added progressively, either stepwise or continuously, in accordance with the reduction in temperature of the waxy oil solution, and the wax is subsequently removed from the oil solution. The difference in temperature between the mixture of oil and solvent and the stepwise or continuously added solvent should not be greater than 15‹C. The precipitated and separated oil-containing wax is freed from oil in two or more stages by means of pure or oilcontaining solvent free from wax. Where mixtures of solvents are used, the individual components may be added consecutively. An example is given, with lay-out of plant, for de-waxing a Roumanian distillate, using naphtha as the solvent.
Patent GB-698375-A (GB)
Title: Improvements in the surface treatment of fibre boards
IPC: B05D5/06
Filed: 1951-08-29
Abstract: 698,375. Ornamenting fibre board. ODLAND, B. Aug. 29, 1951.. [May 4, 1951] No. 20359/51. Class 93. A fibre board is coated with a pigmented or clear plastic material, a pattern in one or more colours applied thereto, and then covered by one or more layers of clear plastic material, the colouring material and the plastic material being so chosen as to combine to form a non- laminated layer. The first layer may comprise a urea-melamine-formaldehyde resin containing a softening agent. The pattern may be applied by means of stencils or template as by the silk printing method. Referring to the drawing, fibre board 1, has applied thereto plastic material 2, on which is applied coloured pattern 3, and a layer 4 of cold hardening plastic so chosen that it will combine with layers 2 and 3 to form a uniting layer 5.
Patent GB-586537-A (GB)
Title: Improvements in the stabilization of vinyl aromatic compounds
IPC: C07C17/42
Filed: 1944-10-20
Abstract: Vinyl aromatic compounds are stabilized against polymerization during distillation by addition of an alkoxy derivative of hydroquinone or other polyhydroxy aromatic compound having at least two free hydroxy groups in para position.  2, 5- Dialkoxy-hydroquinones are particularly effective.  Inhibitors having physical properties chosen in accordance with those of the monomer to be protected may be used as described in Specifications 576,138 and 578,965.  Two or more inhibitors may be used.  Thus, in distilling chlor-styrenes, three inhibitors of sufficient volatility to distil over, to remain in the column, and in the still respectively may be present.  The new inhibitors may be employed with others of known type such as diamyl-hydroquinone or tert. butyl-catechol.ALSO:Vinyl aromatic compounds such as styrene and its homologues and substitution products are stabilized against polymerization by addition of an alkoxy derivative of hydroquinone or of other dihydroxy or polyhydroxy aromatic compounds having at least 2 free hydroxy groups in the para-position including di- or poly - cyclic hydroquinones such as 1,4-dihydroxy naphthalene.  Alkoxy derivatives having two or more alkoxy groups, especially 2,5-dialkoxy hydroquinones, may be used.  They may be prepared by heating quinone with the appropriate alcohol and zinc chloride, by partial etherification of polyhydric phenols or partial de-etherification of completely etherified polyhydric phenols. The alkyl radicals may be methyl, ethyl, propyl, amyl or higher, either straight or branched chain.  Substituents such as halogen, hydrocarbon radicals, nitro, amino and sulphur-containing groups may be present in the remaining free positions of the ring or such substituents as halogen and ester groups may be present in the alkyl radicals of the alkoxy groups.  An example of the latter type is di-(ethoxyethoxy) hydroquinone.  The proportion of stabilizer is generally less than 1, but may, for example, be .001-5 per cent by weight.  The physical properties may be chosen in accordance with those of the monomer to be protected as described in Specifications 576,138 and 578,965, [Group III].  A mutual solvent may be added. Two or more inhibitors may be used. Thus, in distilling di- or trichlorstyrenes, three inhibitors of sufficient volatility to pass over with the distillate, to remain in the fractionating column, and in the still respectively may be used.  The inhibitors may be used with others of known type, for example diethoxyhydroquinone with diamylhydroquinone or dibutoxyhydroquinone with tert.-butyl catechol. They are removed by washing with aqueous alkali.  Comparative tests are given of the stabilizing effects of 2,5-diethoxy-, 2,5-di-(b -methoxyethoxy)- and 2,5 - di - n - propoxy - hydroquinones, and known inhibitors on nuclear substituted dichlorstyrene and styrene.
Patent GB-1310635-A (GB)
Title: Tower crane
IPC: B66C23/70
Filed: 1971-04-19
Abstract: 1310635 Tower crane jibs LINDEN-ALIMAK AB 19 April 1971 [27 Jan 1970] 20469/71 Heading B8B A tower crane jib 5 mounted for slewing on a tower 2 has no outside staying members and is constructed from modules M of different bearing capacities, the bearing capacity increasing from the free end of the jib 5 inwardly. As shown the modules M are of rectangular section with hollow upper and lower frame members 12, 13 of rectangular section, the different bearing capacities being obtained by using different thicknesses of material, the outer or inner dimensions of all the members being equal. The modules M are bolted together by flanges 18 on the upper members 12, the lower members 13 having guide pins 19 for centring purposes, and serving as a runway for a load carriage 9.
Patent GB-188066-A (GB)
Title: Improvements in flexible couplings for power transmission
IPC: F16D3/60
Filed: 1921-07-30
Abstract: 188,066. Hughes, G. A., (trading as London Electric Firm). July 30, 1921. Universal joints of the type in which driving and driven members carry studs connected by flexible links, each of the members is recessed or perforated to accommodate the heads of the studs carried by the other. The recessed members a, d, Fig. 2, carry respectively, in alternate order, two or more studs b and two or more studs c, which are connected by flexible links e, secured to the studs by welding or riveting, or by locknuts. The links are made of heat-treated steel or like material, and preferably comprise laminations so arranged that the component laminations of one link alternate with those of the links connecting adjacent pairs of studs. The discs a, d are preferably further recessed to form housings for the links e. Fig. 4 shows a duplicate arrangement in which the perforated members a, d are connected by links e to a floating-member f.