baber/WOPTO huggingface dataset:
Patent GB-812915-A (GB)
Title: Improvements in or relating to the manufacture of seam-welded tubing
Inventor: NORTON ALBERT
IPC: B21C37/08
Filed: 1955-03-18
Abstract: 812,915. Making tubes; broaching. TUBE PRODUCTS Ltd. Aug. 2, 1955 [March 18, 1955], No. 7913/55. Classes 83 (2) and 83 (3). A cutting-head 24 for location within a welded tube to remove flash therefrom, comprises a tool carrier 25 and a reaction member 27 urged radially apart by fluid-pressure-operated means. Strip metal from a roll 16 is trimmed by rolls 18, passes through rolls 19, 20 which form it into a tube, and then has its edges forced together by rolls 22 as the edges are resistance-welded by electrode discs 21 at each side of the joint. Alternatively, the joint is fusion- or inductionwelded. The external flash is removed by a tool 23, and the internal flash by the cutting head 24 anchored at 26 to a bar passing into the tube at a point behind the final forming rolls 20. The tool 35 is gripped in a split portion of the carrier by a bolt 39. A roller 40, grooved to straddle the flash, and a roller 44 to control the depth of cut, guide the tool. The roller 44 is grooved so that its guiding effect is independent of the depth of cut itself, but this roller may be omitted. Pressure fluid enters through the rod and passages 45, 28 to force the tool into the cut. In a modification, the rod is attached to the reaction member. In a further modification, the carrier and reaction member are forced apart by an inflatable bag.
Patent GB-540915-A (GB)
Title: The manufacture of aliphatic acids and their anhydrides
IPC: C07C51/235
Filed: 1940-05-04
Abstract: 540,915. Aliphatic acids and their anhydrides. GROOMBRIDGE, W. H. May 4, 1940, No. 8031. [Class 2 (iii)] In the production of aliphatic acids and their anhydrides by the oxidation of aldehydes with oxygen, the aldehyde and oxygen are introduced into the re-action zone in the proportion of at least four molecules of aldehyde for each molecule of oxygen. The catalyst is preferably a copper, nickel or cobalt salt. The re-action may be effected at 50-75‹C in an organic solvent for the acid and anhydride, but in which water is insoluble such as a hydrocarbon. Specifications 401,269 and 510,959 are referred to.
Patent GB-1455353-A (GB)
Title: Coating compositions
IPC: C08G18/50
Filed: 1974-02-22
Abstract: 1455353 Urethane coating compositions PPG INDUSTRIES Inc 22 Feb 1974 [16 May 1973] 8064/74 Heading C3R A coating composition comprises the reaction product of (A) an ungelled, hydroxyl-containing urethane reaction product which contains at least 0À075% by weight of acidic carboxyl groups and (B) an alkyleneimine having 2 or 3 carbon atoms in the ring. It is preferred to include an aminoplast in the composition. The polyurethane polyol (A) may be prepared by reacting a polyisocyanate with a polyhydric material, e.g. a polyether or polyester, at an NCO/OH ratio of less than 1. The acid content of the polyurethane polyol may be achieved by (i) reacting the polyol with a polycarboxylic acid or anhydride thereof, (ii) by using a polyhydric material, e.g. a polyester, which contains carboxyl groups, in its preparation or (iii) incorporating, in the reaction mixture comprising a polyisocyanate and a polyhydric material, acidic carboxyl group source materials, e.g. tartaric acid, glycolic acid, and dimethylolpropionic acid. Preferred alkylene imines are ethyleneimine, 1,2-propyleneimine and N- hydroxyethyl ethyleneimine. The composition is ordinarily contained in solvent and as such may be applied to a variety of substrates. The compositions containing an aminoplast resin are cured at elevated temperatures.
Patent GB-472256-A (GB)
Title: Improvements in and relating to thermionic amplifiers
IPC: H03F1/36
Filed: 1936-03-18
Abstract: 472,256. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., and ROCHE, A. H. March 18, 1936, No. 8109. [Class 40 (v)] In a negative feed-back amplifier incorporating an approximately balanced output bridge so that the output circuit is conjugate to the feed-back path a portion of one arm of the bridge is adjustable to vary with frequency the amplifier output. The Figure shows a threestage amplifier VI, V2, V3, in which feed-back is taken through condenser 17 from one diagonal of the output bridge comprising V3 and R15, R16, R17, the output transformer L6 being connected across the other diagonal of the bridge. The feed-back voltage is applied across resistances PM, R22 which are variable to control the gain, resistance pads A1 in the input may be used to supplement the gain control. A variable condenser C18 is provided to maintain the balance of the output bridge at high frequencies and used to make the output impedance increase or decrease at high frequencies. The resistance R15 is made variable in steps over a small range to facilitate matching of the output circuit. A variable condenser C, parallel with the input transformer is provided and adjusted so that the imput impedance remains constant over the operating range. Jacks J1 ... J4 are provided for metering and a relay S1 to indicate valve or supply failure. The output valve is of the co-planar grid type positive bias being obtained by the potentiometer R20, R21 across the anode supply and from the low tension battery. The intervalve couplings comprise transformers with their windings in series with the anode resistance and grid leak.
Patent GB-290788-A (GB)
Title: Improvements in or relating to boots and shoes and the method of making same
IPC: A43B13/12
Filed: 1927-03-24
Abstract: 290,788. Crick, S. C., Crick, W., and Crick, H., (trading as Crick & Co.), and Crick, W. March 24, 1927. Connecting uppers to insoles; lasting, methods of.-In boots and shoes of the kind having a double insole, the one nearer the foot being made of leather, and the other of felt or like soft material, to serve as a cushion, the upper is first lasted and tacked to the felt &c. insole 1, Fig. 3, and its marginal edges are then secured to the felt &c. insole by rubber solution or adhesive, the tacks, except at the heel seat, being afterwards withdrawn. The last is then slipped, the leather insole 2 turned back ,as shown, and the shoe is then sewn, with or without an outer sole 7, or an outer and middle sole, after which the leather insole 2 is replaced and secured by adhesive. The felt &c. and leather insoles being permanently secured together at the heel seat, the leather insole serves as an anchorage for the shoe heel. A metal or other arch support 8, Figs. 4, 5, may be removably arranged between the two insoles, or it may be secured by one or more rivets 9. The leather insole may be extended at the waist to serve as an arch support, or to cover the support 8. The invention is also applicable to welted footwear. Specification 230,683 is referred to.
Patent GB-666271-A (GB)
Title: Improvements in and relating to machines for peeling or cleaning root vegetables such as potatoes
IPC: A47J17/18
Filed: 1949-03-25
Abstract: 666,271. Potato &c. peeler. COLLINSON, E. March 22, 1950 [March 25, 1949], No. 8159/49. Class 28 (ii). [Also in Group VIII] A clothes washing machine of the power operated paddle type is convertible into a potato &c. peeler by fitting abrading devices inside, Fig. 1, or on top of the washer, Fig. 2, one abrader being stationary and the other being coupled to be driven from the paddle shaft or paddle. In Fig. 1 the oscillated paddle has been removed and replaced by a tubular casting 15 carrying a disc or conical abrading or grating surface 16a to support the potatoes against a fixed abrasive conical surface 18b of a stationary cylinder 18 which has been lowered into the container 11. Lugs 19 support 18 on the top rim of 11. A gap 22 between the fixed and oscillated abrading surfaces allows water 23 and peelings to fall down and exit through a drain 24. In Fig. 2 the peeler casing 27 is shaped to form an annular bottom trough 28 with drain hose 31. The abrading bottom cone 16 is driven by a hose coupling from its depending boss 25 to the top of the paddle 14.
Patent GB-786844-A (GB)
Title: Improvements in the separation of optical antipodes
IPC: C07B63/02
Filed: 1956-03-16
Abstract: Optical antipodes are separated by bringing together urea with racemic mixtures, separating the formed inclusion compounds by fractional crystallization and splitting them up into their components as described in the parent Specification, characterized by carrying out the formation of the inclusion compounds in the presence of optically-active substances which dissolve the mixture or are dissolved by it.  The added optically active substances may themselves form urea adducts; thus one of the two antipodes of the racemate to be separated may be used. Optically-active substances which do not form urea adducts may also be used, suitable examples being (-)-2-methylbutanol-1, d-sorbitol, d-fructose, l-sorbose, d-xylose, cane sugar, (+)-cholic acid, (+)-deoxycholic acid, d-tartaric acid, d-diethyl tartrate, Seignette salt, (-)-tall oil resin acids, (-)-colophony, (-)-leucine and (+)-alanine or the optical isomers of these compounds.  The substances which form urea adducts are used in amounts of 0.1 to 20 per cent of the racemic mixture, while the substances which do not form adducts may also be used in amounts of 0.1 to 300 per cent.  The added optically active substances remain for the most part in the mother liquor and may be used again.  In examples: (-)-diamyl malate is used in the separation of (1) dl-diamyl malate and (2) racemic diheptyl dichlorosuccinate; (3) l-leucine is used in the separation of dl-methylethyl acetic acid decyl ester; (4) (+)-tartaric acid is used in the separation of dl-heptyl-b -chlor-butyrate.
Patent GB-270061-A (GB)
Title: Improvements in or relating to lamp cases, particularly for use in garages or workshops
IPC: F21V21/00
Filed: 1926-03-27
Abstract: 270,061. Powell, A. D. March 27, 1926. Projectors; lanterns, handles for.-The exterior of the casing of a lamp, particularly for use in garages or workshops, is provided with seatings or bases, such as radiating ribs d, b, so that the lamp may be stood so as to direct the light in any one of two or more directions. Each pair of ribs may be cut away at various angles so as to provide two or more seatings k, l. The ribs may be cut away or formed with apertures for lightness and a handle is preferably formed or fitted between a pair of ribs. The ribs may extend slightly beyond the rear of the casing to protect the outer end of the lamp socket and the casing may be provided with a front glass and made watertight. The interior of the casing may be painted white.
Patent GB-990855-A (GB)
Title: Web folding formers and apparatus
Inventor: RAMAIKA LAWRENCE THOMAS
IPC: B65B49/16
Filed: 1964-02-28
Abstract: 990,855. Folding paper; feeding webs. AVISUN CORPORATION. Feb. 28, 1964, No. 8433/64. Headings B6B and B6H. A former for folding a web longitudinally as the web is advanced over the sides and across a corner thereof, comprises a V- shaped frame formed from tubing having openings spaced along its length and extending substantially perpendicularly to the longitudinal axis, the arrangement being such that gas may be delivered through the openings to provide a layer of gas between the frame and the web travelling thereover, after which the gas may escape through openings in the interior of the frame. The V-shaped frame 21 is welded to a V-shaped plate 33 inclined to the horizon and has openings 79 spaced along its sides 53, 55. A plurality of openings are spaced around the apex 57 of the frame, Fig. 4 (not shown). An additional tube 59 is provided adjacent the upper edge of the folder frame. Two series of openings 73, 75 are provided in the tube which are inclined oppositely to the centre opening 71 whereby compressed air supplied to the tube tends to tension the web transversely. The folded web passes between guide tubes 63 which deflect the web to a take-up spool on a shaft 65. The guide tubes are perforated and supplied with compressed air to provide a cushion of air between the tubes and web.
Patent GB-377675-A (GB)
Title: Improvements relating to the recording of sound
IPC: G11B7/00
Filed: 1931-03-19
Abstract: 377,675. Recording sound optically; thermionic valve circuits. BRITISH ACOUSTIC FILMS, Ltd., Film House, Wardour Street, London.-(Assignees of Poulsen, A.; 7, Hoyrups Allee, Hellerup, near Copenhagen, and Petersen, A. C. G. ; 183, Norrebrogade, Copenhagen.) March 19, 1931, No. 8541. Convention date, Sept. 26, 1930. [Class 40 (ii).] Optical apparatus and records.-In recording optical sound records of the variable width type the zero line of the sound trace is initially displaced to a position near one edge of the film and, during recording, is automatically moved towards, but never beyond, the centre of the film, by an amount which varies with the amplitude of the sound, for the purpose of making a negative record with a minimum transparent portion and thus reducing " ground noise " causes. A negative so produced is double copied to produce a positive from which sound is reproduced. This variation of the zero line is effected automatically by causing a portion of the sound modulated currents to operate through a relay on an oscillograph, glow discharge tube, or other sound recording device, in such a manner that the zero line is never displaced beyond the centre of the record track. Fig. 2 shows a record so produced. In one system for automatically displacing the zero line according to the amplitude of the sound being recorded, the sound current from an amplifier e, Fig. 3, acts through a transformer f on an oscillograph h, i, and a branch from the feed circuit acts through a transformer k on the grid of a rectifying valve l whose output controls, through an electromagnetic relay m, a resistance n in the oscillograph circuit. By a suitable initial setting of the angular position of the mirror i and adjustments at a battery o in the relay circuit the displacement of the zero line can be limited so as not to extend beyond the centre of the film. In another system, a branch from the feed circuit is led through a detector device and applied through an adjustable potentiometer to the grid of a thermionic valve whose output is connected with the oscillograph wire through resistances across which a capacity is shunted to byepass undesired frequencies. The parts are adjusted so that the plate current of the valve is zero when the zero line of the record trace is displaced to the centre of the film. In a further system, a branch from the feed circuit from amplifier e, Fig. 5, is fed through a transformer k to a rectifying valve l delivering through an adjustable potentiometer s to the grid of a valve p and the parts are adjusted so that the plate current of the valve p becomes zero when the zero line of the record trace is displaced to the middle of the record.
Patent GB-310317-A (GB)
Title: Improvements in or relating to cylinders for two-stroke-cycle internal-combustion engines
IPC: F02B3/06
Filed: 1929-03-16
Abstract: 310,317. Maschinenfabrik Augsburg- Nurnberg Akt.-Ges. April 23, 1928, [Convention date]. Cylinders, barrels and heads of, and cooling. - The cylinders of double acting two - stroke - cycle engines have walls f which taper from flat heads towards the central section c containing the ports. Flanges g on the walls f, which are integral with the heads, are clamped between the flanges h<1> on water jackets h and the central section c.
Patent GB-642406-A (GB)
Title: Improvements in or relating to stabilized halogenated aromatic compounds and articles including such stabilized compounds
IPC: H01B3/24
Filed: 1947-03-31
Abstract: Halogenated aromatic compounds, particularly those used for electric insulation purposes are stabilized by the addition of dibutyl diphenyl tin.  It is stated that this compound is effective to promote stabilization and yet does not cause decomposition. Halogenated aromatic compounds mentioned include chlorinated diphenyl, trichlorobenzene, chlorinated naphthalene, chlorinated diphenyl ketone, chlorinated diphenyl oxide, chlorinated diphenyl methane, chlorinated alkylated benzenes, ethyl tri-, tetra-, and pentachlor-benzenes, chlorinated terphenyls and chlorinated quaterphenyls.  The stabilizer is incorporated by the simple addition at room temperature if the halogen is liquids or with the aid of solvents if it is a solid. The amount used is from 5-10 per cent by weight of the halogenated compound.  Specification 594,655 is referred to.
Patent GB-526884-A (GB)
Title: Improvements in or relating to the manufacture of d1-tocopherols
IPC: C07D311/72
Filed: 1939-03-17
Abstract: 526,884. Tocopherols. HOFFMAN-LA ROCHE & CO. AKT.-GES. F. March 17, 1939, Nos. 8623, 8629, 8630, 8631,8632,8633, 8634 and 8635. Convention dates, March 31, 1938, April 1, 1938, April 14, 1938, June 3, 1938, June 11, 1938, June 23, 1938, July 20, 1938 and July 26, 1938. [Class 2 (iii)] Al-tocopherols are prepared by reacting trimethylhydroquinone or a dimethylhydroquinone with phytol, isophytol, a phytyl halide or a 3-halogeno-dihydrophytyl halide in the presence of an acidic condensing agent. The products, which are chromane derivatives, appear to be identical with the racemates of tocopherols obtained from natural materials and are useful therapeutically. The reaction is preferably effected in an inert solvent such as benzine or petroleum ether, with the aid of formic acid or zinc chloride as condensing agent. Examples describe its condensation of (1) trimethylhydroquinone with phytyl bromide, 3-bromodihydrophytyl bromide and phytol, (2) 2 :5-dimethylhydroquinone with phytyl bromide, (3) 3 : 5-dimethylhydroquinone with phytyl bromide, phytol and 3-bromodihydrophytyl bromide, and (4) trimethylhydroquinone with isophytol. The formulae of some of the its products are given. Specification 508,292 is referred to. The Specification as open to inspection under Sect. 91 also describes the interaction of 2: 3-dimethylhydroquinone with phytyl bromide in the presence of zinc chloride, and refers to the use of phytol, isophytol and a phytyl dihalide for the same reaction. This subject-matter does not appear in the Specification as accepted.
Patent GB-1394292-A (GB)
Title: Cathodic protection
IPC: B05D5/12
Filed: 1972-02-25
Abstract: 1394292 Cathodic protection STORRY SMITHSON & CO Ltd 21 Feb 1973 [25 Feb 1972] 8777/72 Heading C7E A cathodic protection system comprises a metal 10 to be protected, an electrically non-conductive coating 12 applied in fluid form over the metal, an electrically conductive coating 14 applied in fluid form over coating 12, said coating 14 being rendered conductive by the presence of elementary carbon, and being applied such that 14 and 10 are electrically insulated from each other, and a D.C. voltage source connected between 10 and 14 to make the latter anodic. Electrical connection may be to a bus-bar 16 covered by a conducting layer 18 and fixed to metal 10 by a bolt 20 and nut 22 insulated from 10 by a sleeve 24 and washer 26. The metal, e.g. steel, is grit, slag or shot-blasted, pickled or manually cleaned, and optionally coated with insulator, e.g. a bituminous composition, a rubber - or resin-based paint; the conductive layer is preferably a conductive paint; typical paints are described. Supply cables may be connected to bus-bars contacted with the conductive paint coating whilst tacky and bolted as shown, or may be welded or soldered to metal foil embedded in the coating whilst wet, or cables may be embedded in a conductive mastic adhering to the coating. Protection of air-exposed, under ground, or under water metal is referred to; in sea-water a D.C. voltage large enough to generate Cl 2  may be applied.
Patent GB-741745-A (GB)
Title: Improvements in or relating to the melting of high melting point metals or alloys
Inventor: SWAINSON ERIC
IPC: F27B5/04
Filed: 1953-03-31
Abstract: High melting point reactive metals, e.g. Ti, Zr, Th, Mo, Hf, Ta, Cr, and their alloys are arc-melted in a liquid-cooled crucible formed of Al of at least commercial purity.  The crucible is preferably of welded construction.
Patent GB-415668-A (GB)
Title: Improvements in and relating to transformer connections for electric discharge devices with parallel-operating anodes
IPC: H02M7/06
Filed: 1934-03-21
Abstract: 415,668. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. March 21, 1934, No. 8890. Convention date, March 22, 1933. [Class 38 (ii).] In a rectifying or inverting arrangement comprising electric discharge devices having at least two discharge paths per phase operating at different voltages (e.g. anodes A<1>12' A<11>13 operating at the full voltage of the transformer winding P<1>11, P1<SP>11>, and anodes A<1>11 A<11>11 operating at a lower voltage derived from taps on the transformer winding) a common current equalizing transformer S1 is provided for all the discharge paths of the same phase. In a modification, Fig. 3, the current equalizing transformer S1 is inserted between a part of the main transformer winding P<0>1 common to the anodes of different voltages and additional transformer windings P1<SP>1>, P1<SP>11> feeding the higher voltage anodes A<1>12, A<11>12. Regulation is effected by grid control of the higher voltage anodes, the lower voltage anodes remaining fully conductive.
Patent GB-109274-A (GB)
Title: Improvements in and connected with Gas Holders.
Inventor: JACKS THOMAS
IPC: F17B1/00
Filed: 1916-06-24
Abstract: 109,274. Jacks, T. June 24, 1916. Holders.-Gas admitted to the lower part of a holder is withdrawn from the top by a conduit within the holder. The conduit comprises telescopic pipes a, b suspended from the crown d, stayed by rods d<1>, and fitting over the usual outlet pipe c. The joint between the pipes a, b is rendered gas-tight by means of a water seal, or by a rubber ring fitting between flanges on the pipes, or by the engagement of matching conical ends on the pipes.
Patent GB-1001012-A (GB)
Title: Packaging apparatus
Inventor: PETTS JOHN HERBERT
IPC: B65B35/54
Filed: 1963-03-06
Abstract: 1,001,012. Packaging-machines. BOWATER RESEARCH & DEVELOPMENT CO. Ltd. Feb. 28, 1964 [March 6, 1963], No. 8925/63. Heading B8C. In a packaging machine, articles arranged in a predetermined pattern at each of two or more collection zones are transferred to a corresponding number of vertically spaced reception zones, and means are provided to move all the articles at the reception zones simultaneously therefrom so that they stack upon one another. In the embodiment shown, a collating station has two reception zones 2, 3, Fig. 2, formed by plates 4-8, the zones having open sides 11, 12 respectively and open opposite ends 9, 10, Fig. 1. The plate 4 which separates the zones is relatively thin and is preferably of metal. In operation, articles, for example coal briquettes, are transferred from continuously moving conveyers 26, 27 to article collecting stations 20, 21 from which in turn groups of articles are transferred by rams 22, 24 to the zones 2, 3 respectively. These rams are provided with shut-off gates 23, 25 and the size of the groups is determined by the dimensions of the stations 20, 21. A container, for example a bag which rests horizontally on a table 18 and whose mouth is held open by duck-bills 17, receives the articles from the collating station as a stacked double layer when a ram 13 having faces 14, 15 is moved in the direction shown. The filled container is removed by a conveyer 19 to a closing station. The collecting stations may be situated above, below or be inclined to the collating zones and the articles may be gravity fed and/or displaced by a lift as well as, or alternatively, to being ram fed to the reception zones.