baber/WOPTO huggingface dataset:
Patent GB-2474278-A (GB)
Title: Apparatus for cleaning tubes of a heat exchanger
Inventor: WATSON MICHAEL
IPC: B08B9/043
Filed: 2009-10-09
Abstract: An apparatus is disclosed for supporting, rotating and advancing a rigid lance when cleaning the interior of a tube of a heat exchanger. The apparatus comprises a longitudinally extending aluminium body 10 defining a closed conduit 12 and a C-shaped channel 14 sharing a common partition wall and a rigid lance is located within the C-shaped channel. A first motor assembly 20 rotates the lance 26 and feeds water under pressure into the lance 26 through a rotary coupling 30. The first motor assembly 20 is slidable along, and guided by, the C-shaped channel 14, by a second motor assembly 30 which serves to advance and retract the lance 26. The second motor assembly 30 is connected to pull the first motor assembly in both directions along the C-shaped channel by a flexible drive element 34 having a run housed in the closed conduit 12.
Patent GB-2475344-A (GB)
Title: Multi-chromatic imaging system for product in a product flow
Inventor: MILLS STEWART
IPC: B07C5/342
Filed: 2009-11-17
Abstract: A system for imaging and sorting product such as foodstuffs and plastic pellets in a product flow. An illumination unit 3 comprises two sources 5a, 5b for providing illumination at first and second, different wavelengths. A detector unit 15 detects reflected illumination from product P in the product flow, and comprises first and second line array detectors 17a, 17b., each comprising a plurality of pixel elements and extending as lines L1, L2 across a width of the product flow, one line downstream of the other, whereby product passing a pixel element of the first line array detector 17a passes a corresponding pixel element of the second line array detector 17b. A control unit 21 triggers the illumination sources to flash sequentially at a scan rate corresponding to the flow rate of the product flow. An image processing unit 25 successively reads the pixel lines of the first and second line array detectors 17a, 17b and constructs images of the product at each of the illumination wavelengths, and provides for characterization of the product at each of the illumination wavelengths.
Patent GB-2475499-A (GB)
Title: Gas mask for dog
Inventor: WARREN ALLAN
IPC: A62B18/06
Filed: 2009-11-19
Abstract: A dog gas mask is a strong cotton hood that covers a dogs mouth and nose. It is held in place with a cotton strap that goes around the dogs neck and joins the hood. The strap is fastened by a plastic clasp at the back of the dogs neck. At the front of the hood is a felt carbon filter that is sandwiched between two pieces of fine plastic mesh allowing the dog to breathe. The carbon filter is enclosed by a plastic zipper to allow the filter to be removed and replaced.
Patent GB-2472281-A (GB)
Title: Power connector with reduced footprint
Inventor: HADFIELD ROBERT HENRY
IPC: H01R13/46
Filed: 2009-12-14
Abstract: A power connector with a reduced footprint for use with a domestic appliance (e.g. cordless kettle) comprises a discrete component with at least four terminals (e.g. projecting pins) and a plurality of fixing points 115 for fixing the component to an appliance part. The fixing points 115 are arranged around a substantially rectangular periphery of the connector, wherein at least one longer side of the periphery is re-entrant such that one of the fixing points 115 is positioned towards the centre of the connector. An insert moulded seal (e.g. shaped O-ring 172) clamped between the connector and appliance part may be arranged to prevent ingress of liquid into the connector. A rotatable shutter may be arranged to provide access to the terminals when open and to protect the terminals from ingress of liquid when closed. In another embodiment, the fixing points are unevenly distributed around the periphery of the connector. In another embodiment, the connector may comprise a central terminal and at least three peripheral terminals distributed around, and equally spaced from, the central terminal. In another embodiment, a power connection system comprises two connectors with corresponding terminals arranged so that electrical connection is made between the terminals by relative rotation of the connectors when coupled together.
Patent GB-552469-A (GB)
Title: Improvements in or relating to methods of recovering calcium-free beryllium sulphatecrystals
IPC: C01F3/00
Filed: 1941-08-06
Abstract: 552,469. Production of calcium-free beryllium sulphate crystals. BRUSH BERYLLIUM CO. Aug. 6, 1941, No. 10013. Convention date, Aug. 3, 1940. [Class 1 (iii)] Substantially calcium-free beryllium sulphate crystals are recovered from solutions containing more than about ¢ gm. calcium sulphate per litre by establishing in the solution such proportions of beryllium sulphate, free ammonium sulphate and calcium sulphate as to cause the latter to be held in solution when beryllium sulphate is crystallized out e.g. by evaporation under vacuum or by concentrating to saturation by heat and crystallizing by subsequent cooling. The proportions necessary in the solution are ascertainable from the curve shown, which indicates the influence of free ammonium sulphate on the equilibrium solubility of calcium sulphate at about 20‹C. in a solution containing approximately 635 gm. BeSO 4 , 4H 2 O per litre, which solution is therefore approximately saturated with beryllium sulphate. In the area below the curve the calcium is soluble; above and to the right, insoluble. This solution should contain not less than 110 gm. per litre of ammonium sulphate. The adjustment may be effected by adding ammonium sulphate and concentrating the solution so that it is saturated with beryllium sulphate while precipitating part of the calcium sulphate which is recoved by filtering. If aluminium sulphate is present this is crystallized out as alum with the calcium sulphate. In processes in which beryllium sulphate and alum are crystallized out together the invention may be applied to prevent precipitation of calcium sulphate therewith. Specification 500,469, [Group II], and U.S.A. Specifications 2,018,473, 2,204,221 and 2,268,903 are referred to.
Patent GB-218249-A (GB)
Title: An oil level indicator for ships' bunkers, oil containers and the like
IPC: G01C13/00
Filed: 1924-04-22
Abstract: 218,249. Atlas-Werke Akt.-Ges., and Schriever, L. June 27, 1923, [Convention date]. Indicators actuated by pressure of head of liquid.-An open vessel b at the bottom of the oil tank a contains water and communicates with a gauge glass d through a cock e normallv closed bv a weighted lever h. In a modification a second chamber containing water is placed between the gauge glass and a plug cock in the tube c. In this case oil of the same specific gravity as .the oil in the tank but of less viscosity is used in the gauge glass.
Patent GB-332940-A (GB)
Title: Manufacture of water-insoluble azo-dyestuffs on the fibre
IPC: D06P3/68
Filed: 1929-03-28
Abstract: 332,940. Imray, 0. Y., (I. G. Farbenindustrie Akt.-Ges.). March 28, 1929. Dioxyquinolines of the general formula: in which R = a naphthalene residue or a diphenyl radical or a residue of the benzene series which contains a substituent increasing generally the affinity of aromatic compounds to the vegetable fibre (namely an azo- or a psuedoazimino group), n being 1 when R = a naphthalene residue or an aromatic residue containing the aforesaid substituents and 2 when R = a diephenyl radical are made from a. suitable amine and malonic ester. In examples, 2 : 4 : 2<1> : 4<1>-tetraoxy-6 : 6<1>-diquinol<y>l is made from benzidine, 5 : 6-, 6 : 7- and 7 : 8- benzo-2 : 4-dioxyquinolines from 2-naphthylamine, 2-amino-3-naphthoic acid ethyl ester and 1-naphthylamine respectively, 2 : 4-dioxy-6- quinolyl-2'-pseudoaziminobenzene from 1-(4<1>- amiuo-3<1>-carbethoxyphenyl) - 2 : 3-phenotriazole and 2 : 4-dioxyquinoline-6 : 1<1>-azo-2<1>-chloroben - zene from 4 - amino - 2<1> - chlorazobenzene-3-carboxylic acid. 1 - (4<1> Amino-3-carbethoxyphenyl 2 : 3-phenotriazole is made by coupling diazotized o-nitraniline with anthranilic acid, reducing for the purpose of preparing the triazole group and esterifying the carboxy group.
Patent GB-551168-A (GB)
Title: Improvements in and connected with the propulsion of boats, rafts and the like
IPC: B63H1/36
Filed: 1941-08-08
Abstract: 551,168. Oscillating-vane propellers; heels. DIXON, H. S. Aug. 8, 1941, No. 10104. [Classes 113 (ii) and 114] Manually operated propulsion means for collapsable or inflatable boats, rafts, pleasure boats, punts, and like watercraft r comprises a flexible paddle device a which is oscillated laterally of the direction of propulsion in a substantially vertical plane beneath the bottom m of the craft by an operating stem t engaged with or adjacent the leading edge b of the paddle device, the latter being restrained from moving forwardly of a predetermined lateral plane and developing a propulsive effect by acquiring a variable pitch from top to bottom. In the form shown the paddle device a is formed from two layers of coated or impregnated fabric stiffened by canes and lower formes d, f provided with sockets c, e. The upper forme d has an eye j to receive a cord k which is connected with a cable s secured to the stern of the craft. The leading edge b is continued upwards in the form of a tube l which passes in a watertight manner through a strengthening connection o secured to the bottom m of the craft. The connection o supports a tube q and the stem t passes through the tubes q, l and engages the sockets c, e. The stem t comprises telescopic jointed lengths connected together by a cord under tension whereby the stem is automatically assembled when given a shake. A cable x under tension is connected between an eye w on the stem t and an eyelet on the bottom m. In one modification the triangular space between the bottom m, the cable s, and the tube l is filled in with water proof fabric or matting. In a second modification the paddle device has a triangular extension between the former d and the cord k, and a balancing blade portion in front of the stem t. In a third modification the paddle device extends up to the bottom m and may extend to the stern, or partly towards the stern, to serve also as a keel. By using additional stays, a light mast for a sail, or for signals, may be stepped on the stern t.
Patent GB-514302-A (GB)
Title: Improvements in the production of hydrocarbon gases by hydrogenation of carbonaceousmaterials
IPC: C10G1/08
Filed: 1938-04-02
Abstract: 514,302. Gasifying solid carbonaceous materials. INSTITUTION OF GAS ENGINEERS, and DENT, F. J. April 2, 1938, No. 10131. [Classes 55 (i) and 55 (ii)] An alkali metal or compound of an alkali metal is added to the coal or coke charge in the production of hydrocarbon gases by treatment of the charge with a current of hydrogen or gases containing hydrogen at a pressure above 5 atmospheres, and at a temperature which is 800‹C. or higher during at least a part of the treatment. The yield of gaseous hydrocarbons is increased, gasification is conducted at a higher speed, and the charge is gasified almost to completion. The alkali addition is preferably a quantity not exceeding 1 0 per cent. of the weight of the charge, although an example is given of an addition of 20 per cent. Suitable alkali metal compounds are oxides, hydroxides, and carbonates of sodium or potassium, and these are added by being mixed either dry or in solution. Coke may be quenched with a solution of the alkali metal compound or the latter may be blown into the reaction vessel with the hydrogenation gas. Specifications 491,453, 503,158, and 503,183 are referred to.
Patent GB-430374-A (GB)
Title: An improvement in crown cork closures for bottles and like containers
IPC: B65D51/24
Filed: 1934-04-04
Abstract: 430,374. Closures for bottles &c. SELF OPENER CROWN SEAL, Ltd., 5th Floor, D.I.C. Building, Lambton Quay, Welling- ton, New Zealand. April 4, 1934, No. 10173. Convention date, Aug. 9, 1933. [Class 125 (iii)] A capsule closure 1 for bottles and the like is formed with a crimped or crinkled rim 3, by which it is secured over the beaded mouth of the bottle, and lugs 2 extending downwards from the rim, the lugs being spaced closely together, and extending at least half-way around the rim with slits or incisions 4 between them opening through the lower edge of the rim so that the lugs may be forced outwards from the bottle one at a time to expand the rim of the capsule and enable the latter to be peeled from the bottle by the fingers. The lugs 2 may be formed with reinforcing ribs 5.
Patent GB-575637-A (GB)
Title: Improvements relating to motor fuels
IPC: C10L1/02
Filed: 1941-08-11
Abstract: 575,637. Motor fuels. WEIZMANN, C. Aug. 11, 1941, No. 10186. [Class 91] A motor fuel for internal combustion engines consists of (1) 35-70 per cent. by volume of gasoline, (2) 20-40 per cent. by volume of aromatic hydrocarbons having a boiling point substantially below 180‹C. (3) 10-25 per cent. by volume of aliphatic mono-ketones having 4-9 carbon atoms in the molecule. The preferred embodiment is the use of aromatic hydrocarbons in amounts between 20 and 30 per cent., and ketones in amounts of 10-20 per cent. Ketones mentioned include methyl ethyl ketone, pinacolone, methyl isobutyl ketone, 3:4-dimethyl-hexanone-2, 3-methyl-heptanone-2, 5-methyl heptanone-3, mesityl oxide, 3:4- dimethyl-hexene -(3)-one-(2), 5-methyl-heptene - (4)-one-(3). Ketones of the above kinds may be prepared as described in Specification 573,724, 550,099, 572,645 and 575,571, [all in Group IV]. Examples of the properties of the fuels are given. Specifications 487,776 and 487,745 also are referred to.
Patent GB-628160-A (GB)
Title: Improvements in and relating to the synthesis of esters
IPC: C07C51/12
Filed: 1947-04-17
Abstract: A solution of cobalt carbonyl is prepared by heating a suspension of reduced sintered cobalt oxide (10 grams) in xylene (50 grams) under 700 atmospheres gauge pressure of carbon monoxide at 175 DEG  to 186 DEG  C.  The solution is used (example 3) as catalyst in synthesis of esters from certain alcohols and carbon monoxide (see Group IV (b)).ALSO:Esters are prepared by introducing into a pressure-resistant vessel a reaction mixture comprising an aliphatic saturated monohydric alcohol containing not more than four carbon atoms, carbon monoxide and a catalyst consisting solely of metallic cobalt, an oxide of cobalt, preferably the monoxide, a cobalt carbonyl or a cobalt carbonyl hydride, heating said mixture at a temperature within the range 100 DEG  to 325 DEG  C. under a pressure within the range 200 to 1500 atmospheres gauge and thereafter separating the ester from the reaction product.  The amount of catalyst used may be about 2 to 10 per cent by weight of the alcohol and should be in particulate form or dissolved or dispersed in the reaction mixture.  The formation of methyl acetate by reaction of carbon monoxide and methanol, rather than of acetic acid, is favoured by use of excess of the alcohol and the addition of hydrogen in small amounts to the reaction mixture. When temperatures above 300 DEG  C. are employed, decreased yields of methyl acetate are obtained and acetaldehyde and propionaldehyde are formed.  In examples: (1) methanol and carbon monoxide are reacted in presence of reduced sintered cobalt monoxide; (2) a series of experiments are carried out as in (1) in the presence of hydrogen to illustrate the effect of temperature on the yields; (3) a solution of cobalt carbonyl, prepared by heating a suspension of reduced sintered cobalt oxide in xylene under 700 atmospheres carbon monoxide pressure at 175 DEG -186 DEG  C., is mixed with aqueous methanol and the mixture reacted with a mixture of carbon monoxide and hydrogen.  The methyl acetate is recovered by distillation of the reaction products and the residue, if desired, is recycled.  Ethyl alcohol and isopropyl alcohol and like higher alcohols may be treated similarly but less satisfactorily. According to the Provisional Specification the process may be applied to the conversion to esters of alcohols and ethers in general.
Patent GB-718545-A (GB)
Title: Improvements relating to combined negative plate and focusing screen holders for darkroom photo-reproduction cameras
Inventor: SPRIGGS JOHN ERIC
IPC: G03B27/58
Filed: 1952-04-23
Abstract: 718,545. Photographic focusing screens and negative plate holders. PICTORIAL MACHINERY, Ltd. April 23, 1952, No, 10256/52. Class 98(1) For use in a process camera such as that described and claimed in Specification 718,544 the holder comprises a rigid upright frame, three transverse cross members vertically one above another across the frame, means for detachably securing a negative plate between the upper and intermediate cross members and a focusing screen between the intermediate and lower cross members, and guide means at the sides of the frame for the ends of the three cross members to permit adjustment in height of the cross members in the frame and to permit raising of the focusing screen into focusing position before the negative plate is so secured. Slides at the ends of the cross members may engage fixed vertical guides in the sides of the frame; preferably each cross member is fitted with a parallel shaft having gear wheels at its ends meshing with vertical racks in the sides of the frame, and set screws are adapted to grip the shafts and lock them against rotation, thereby to hold the cross members against vertical movement. The lower cross member may be suspended from the intermediate cross member so that these two members with thefocusing screen can be moved vertically as a unit. In Fig. 1 the holder, which is shown suspended from a carriage 24 which rides on rails 25 as further described in Specification 718,544, comprises side frame members 35 united by horizontal members 36, upper, intermediate and lower horizontal cross members 40, 41, 42 respectively carrying negative plate 33 and, below, focusing screen 34. Slide members 43, 68 at the ends of cross members 41, 42 respectively fit over flanges of vertical angle members 45 secured to adjacent side frame members 35. Cross shafts 47 are mounted behind each of the cross members 41, 42 and carry gear wheels or skew pinions 48 meshing with vertical racks 49, and set screws 50 prevent movement of the shafts and cross members when these are in position. Links 67 provide unity of movement of cross members 41, 42. Intermediate cross member 41 with focusing screen 67 is raised for focusing, then dropped into the position of Fig. 1 and the negative plate 33 is then placed in position. Figs. 2-10 (not shown) illustrate the holder in side view and details concerning the fitting of the negative plate 33 and focusing screen 67 within the cross members 40, 41, 42, and the adjustment in position and locking of these members.
Patent GB-629558-A (GB)
Title: Improvements in or relating to photographic processes
IPC: G03C5/30
Filed: 1947-04-19
Abstract: 629,558. Photographic developers ; colour photography. MAY & BAKER, Ltd., JOHN, D. H. O., and FIELD, G. T. J. April 19, 1947, No. 10495. [Class 98 (ii)] A photographic developer comprises a reaction product of sulphur dioxide and any one of the amines o-phenylene diamine, p-phenylene diamine, p-monomethylamine aniline, p-dimethylamino aniline 2 :5-diamino toluene, p-amino phenol ; a source of alkali and a colour coupler. A process of colour photography comprises subjecting a photographic element carrying a light-sensitive layer which contains an image in a developable silver salt to development by means of such sulphur dioxide reaction products in the presence of a colour coupler, which latter may be in the lightsensitive layer, in an adjacent layer or in the developer, and which will combine with the oxidation products of such reaction products to form an image in azomethine or quinoneimine dye in situ with the developed silver image. The element may have been subjected to exposure in a camera, or through a positive or negative transparency and development may be conducted by the reversal process. To make the sulphur dioxide reaction product o-phenylene diamine may be dissolved in ether at room temperature, sulphur dioxide bubbled in, and the resulting precipitate washed in ether and dried. The other reaction products may be made in an analogous manner. Any of the colour couplers mentioned in Specification 626,958 may be used. Examples specify, as developers : (1) p-aminophenol sulphur dioxide compound, potassium carbonate and p-nitro benzyl cyanide as yellow colour coupler,; (2) p-dimethylamino aniline sulphur dioxide compound, potassium carbonate and 1-phenyl-5-pyrazolone-3-carboxy anilide as magenta colour coupler ; (3) ophenylene diamine sulphur dioxide compound, potassium carbonate and α-naphthol as cyan colour coupler, and state that after development Farmers Reducer is used to remove silver and silver salts, to leave images in colour. The Provisional Specification indicates the use of sulphur dioxide reaction products of certain other amines. Specification 269,583, [Class 98 (ii)], also is referred to.
Patent GB-451123-A (GB)
Title: Process for the manufacture of intermediate products for dyestuffs
IPC: C07D209/88
Filed: 1935-04-04
Abstract: Arylamides are manufactured from the 3-hydroxycarbazole-o-carboxylic acids obtainable by the action of carbon dioxide on 3-hydroxycarbazole or its derivatives substituted in the cyclic imino group by hydrocarbon radicles, by condensing the chlorides or esters of the said acids with aromatic monoamines or diamines or by condensing the free acids with aryl esters of isocyanic acid.  In examples: (1) 3-hydroxycarbazole-2-carboxylic acid (obtainable by the action of carbon dioxide on 3-hydroxycarbazole) is reacted with o-methoxy-p-chloraniline in toluene in the presence of phosphorus trichloride; the amine employed may be replaced by aminohydroquinone dimethyl ether, a - or b -naphthylamine or 4 : 4<1>-diamino-3 : 3<1>-dimethoxydiphenyl; (2) 9-methyl-3-hydroxycarbazole-2-carboxylic acid is similarly reacted with aminohydroquinone dimethyl ether. 9-Methyl-3-hydroxycarbazole-2-carboxylic acid is obtained by methylating 3-methoxycarbazole to the 9-methyl derivative, partially demethylating this, e.g. by the process described in Specification 372,301, and treating the resulting 9-methyl-3-hydroxycarbazole with carbon dioxide.
Patent GB-105364-A (GB)
IPC: F41F1/10
Abstract: 105,364. Waters, C. R. Oct. 4, 1916. Ordnance design; chambers; machine guns.-Relates to antiaircraft guns of the multiple-barrel type, and comprises an arrangement having a series of barrels b disposed circularly around a central barrel B, but with inclined axes as shown in Fig. 1, so as to produce a divergent effect; an explosion chamber f is provided, common to all the breeches c and closed by a breech-block d. Tc facilitate simultaneous insertion into the breeches, the series of projectiles may be mounted on a carrier, which may comprise a metal disk formed with holes to accommodate the projectiles. The barrels may be arranged in a casing l and supported by an end plate k. The casing may contain a cooling-fluid.
Patent GB-493780-A (GB)
Title: Improvements in sliding fasteners
IPC: A44B19/22
Filed: 1937-04-13
Abstract: 493,780. Fastenings. FRANZE, J. April 13, 1937, Nos. 10542 and 10543. Convention dates, June 16, 1936 and Feb. 20, 1937. [Class 44] A fastening in which a pair of beadings are brought into closing contact by a series of sliding clips 4 of elliptic form which embrace the beadings and which are connected by chains 7 or a wide band secured to eyes 5 at the two ends of the ellipse can be held in the partially closed position by operating a hand grip 12, carried on the outermost sliding clip 8, to insert a jamming plate 12a between the beadings at the point already closed by such outermost clip ; the hand grip is held in the jamming position by a lug 12b which engages the body of the clip 8. The sliding clips are invisible, being arranged at the underside of the parts on which the beadings are provided.