baber/WOPTO huggingface dataset:
Patent GB-668231-A (GB)
Title: Flatfish filleting machine
IPC: A22C25/16
Filed: 1950-01-27
Abstract: 668,231. Filleting Hat fish. MEISSNER, C. Jan. 27 ,1950, No. 2205/50. Class 28 (ii). In a machine for shaving fillets from the skeleton of beheaded flatfish, the fish preferably tail first, is fed between top and underside, disc knives 1, 2 floating on the ends of long levers 23, 24 pivoted at 15 and 16 the knives being pressed towards each other by springs 47, 48. The fish is progressed by the rotation of the first knives 1 and 2 between top and bottom fixed guides 27 which enter the slits and have fixed preliminary parting knives 31 and 32, Fig. 10, at their ends to separate the flesh from the backbone. Thereafter the fish is seized and pulled by rotated toothed feed wheels 7, 8 which pull the fish to a pair of horizontal rotating disc knives 3, 4 which shave off the two underfillets from underneath the spines of the backbone. The knives 3, 4 are self adjusting to shave closely along the spines by mounting them as in Fig. 8 where top and bottom springs 55 and 56 permit the adjustment, the disc knives 3, 4 being driven by and slidable on three pins 4a coupled to the drive shaft 14. The cutter edge of the knives 3 and 4 is shaped as in Fig. 4 (not shown). Their undersurfaces are supported by spring pressed rollers 62, Fig. 3 (not shown). The flatfish then proceeds along guides 29, 30 to an upper pair of horizontal disc knives 5, 6 (not shown) which cut off the remaining upper fillets from the skeleton, being mounted for self adjustment like the knives 3 and 4. The guides 29, 30 have fixed parting knives 33 and are shaped to accommodate the vertebrµ of the backbone between them with clearance for the spines. The horizontal knives have edges with a long taper on one side and a short taper on the other to cut close to the spines.
Patent GB-900355-A (GB)
Title: Improvements in or relating to the production of cyclic ª-ú¼ª--unsaturated ketones
IPC: C07C45/28
Filed: 1960-01-21
Abstract: a :b -unsaturated cyclohexenones are prepared by treating a compound of formula <FORM:0900355/IV (b)/1> wherein R1 and R2 are the same or different and may be a hydrogen atom or an alkyl or alkenyl group, with a hydrogen halide to give a cyclic allyl halide of formula <FORM:0900355/IV (b)/2> which is then oxidized with alkali metal bichromate to form the a :b -unsaturated ketone, of formula <FORM:0900355/IV (b)/3> In an example hydrogen chloride is passed into 1 - methyl-D 1,5-cyclohexadiene to give a cyclic allyl halide (III, R1 and R2 = H) which is added to a vigorously stirred sodium bichromate solution, sulphuric acid is added and the mixture steam distilled to give 1-methyl - D 1 - cyclohexanone-(3).  In further similar examples 1-methyl-D 1-cyclohexanone-(3) is prepared from 1-methylene-D 2-cyclohexene, 1 : 5 - dimethyl - D 1 - cyclohexenone-(3) from 1-methylene - 3 - methyl-D 5-cyclohexene, piperitone from a - and b -phellandrenes, 1-methyl-5-isopropyl-D 1-cyclohexenone - 3 from D 1,5-m-menthadiene and a ketone of formula IV wherein R1 = dimethyl-hexenyl and R2 = H from zingiberene. Semicarbazones of several of the ketones are prepared.
Patent GB-802069-A (GB)
Title: Proteolytic enzyme compositions
IPC: C12N9/76
Filed: 1957-01-23
Abstract: A stable proteolytic enzyme composition comprises an aqueous solution of a proteolytic enzyme such as bromelin, pepsin, streptokinase and preferably chymotrypsin and especially trypsin, and partially hydrolysed, sterile, pyrogen-free, non-antigenic gelatin, the composition having a pH of from 3.2 to 4.8 preferably 3.6 secured by agents such as hydrochloric, lactic or phosphoric acid, sodium or potassium hydroxide. Preservatives such as methyl and propyl p-hydroxybenzoate, cresol, p-chlorocresol and thimerosal may be present.  The aqueous solution may be prepared by combining the enzyme per se or in lyophilized form or in aqueous solution with an aqueous solution of gelatin or by adding a mixture in lyophilized form of the enzyme and gelatin to water.
Patent GB-866068-A (GB)
Title: Process for the production of phosphoric acid esters
IPC: C07F9/09
Filed: 1959-01-22
Abstract: Phosphoric acid mono-esters are obtained by reacting with an excess of water the mixture of dichlorophosphoric acid and dichlorophosphoric acid ester produced by reacting the corresponding hydroxyl-containing compound with pyrophosphoryl chloride.  The hydroxyl-containing compound may be an alcohol, a phenolic compound, a nucleoside or a carbohydrate.  When polyhydroxy compounds are used one or more of the hydroxyl groups can be protected in known manner, e.g., by an isopropylidene group, and the protective group removed after the reaction.  In an example 21, 31-isopropylidene guanosin is introduced with stirring into cooled pyrophosphoryl chloride and the mixture heated to about 30 DEG C. until all the 21, 31-isopropylidene guanosin is dissolved.  The solution is then cooled, mixed with an excess of water, and then adjusted to a pH of 2,7 by the addition of sodium hydroxide and the isopropylidene radical split off by boiling. More sodium sydroxide solution is then added and the guanosin-51-phosphate formed is separated with the aid of an anion exchange resin.
Patent GB-391556-A (GB)
Title: Improvements in tubular apparatus for exchanging heat between fluids, applicable to electrical transformer tanks
IPC: H01F27/12
Filed: 1932-01-27
Abstract: 391,556. Cooling oils &c. SERCK RADIATORS, Ltd. and WAGNER, C. O., Warwick Road, Greet, Birmingham. Jan. 27, 932, No. 2469. [Class 29.] In heat-exchangers, particularly oil coolers for electric transformer tanks, the headers b, c are provided with a valve or valves e movable in the direction of the longitudinal axis of the headers to obtain single or multiflow in the tubes a as desired. In Fig. 1 the valves are moved according to the oil pressure in the header by pistons t working against springs s. In Fig. 4 the closed ends of sleeve valves e form the piston t. The oil circulating pump between the tank and the cooler is shortcircuited to allow of thermosyphonic flow, a valve in the short circuit closing when the starting up of the pump causes a rise of pressure in the pump outlet. Specification 238,587, [Class 64 (iii), Surface apparatus &c.], is referred to.
Patent GB-1164202-A (GB)
Title: Apparatus for collecting contaminants from gases.
IPC: B01D47/14
Filed: 1967-01-17
Abstract: 1,164,202. Cleaning dust-laden gases. NATIONAL DUST COLLECTOR CORP. 17 Jan., 1967 [3 Feb., 1966], No. 2507/67. Heading B1R. Apparatus for cleaning dust-laden gases comprises a housing containing a bed 50 of spherical filter elements supported on a plate 54 and through the dust-laden gas from an inlet 16 passes upwardly, gas entering the inlet 16 being sprayed with liquid from a nozzle 70 and passed through a layer 72 of spherical filter elements arranged in rows between upper and lower grids 78 and 84 in such a manner that limited movement of the filter elements occurs, liquid being supplied to the layer 72 by a spray 68. In modifications two separate single layers of filter elements may be employed the spray for supplying liquid being disposed between the two layers, or two or more layers may be arranged on top of one another. The elements in the layers may be arranged so that orifices of triangular or square cross-section are formed between the elements. Liquid carried to the filter bed 50 may be removed by a drain 58 and returned to spray 68 or to spray 70 via a settling tank 86. Vanes in the upper pawl of housing rotate the cleaned gas and further liquid separated therefrom may also be re-used directly or indirectly.
Patent GB-502660-A (GB)
Title: Improvements in fire extinguishers
IPC: A62C13/00
Filed: 1937-09-17
Abstract: 502,660. Fire extinguishers. REMUS, V. Sept. 17, 1937, No. 2508/39. Divided out of 499,519. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 13, 1938] [Class 47 (ii)] In a fire-extinguisher compriai.ig a container 27 for carbon-dioxide or the like provided with an outlet 11 and a discharge valve 5 controlled by a lever 2, a handle 43 is secured to the valve body 4 in such a position that the lever and the handle can be grasped and controlled by one hand. The lever is locked in inoperative position by a catch 44. which has a part underlying the lever and can be released therefrom through slots 45. The catch comprises also a hook 47 which locks the lever in operative position. The discharge valve comprises two coaxial valves 5, 12 operated in unison by a push-rod 22. The latter has a valve disc 24 co-operating with a seating 26 when the extinguisher is discharging, and with a seating 28 when it is being charged through the outlet 11. Specification 499,519, [Group XXIX], is referred to.
Patent GB-124243-A (GB)
Title: Improvements in Hanging Calendars, Mounts and the like.
IPC: B42D5/04
Filed: 1918-02-19
Abstract: 124,243. Dennis &. Sons, E. T. W., and Dennis, H. E. Feb. 19, 1918. Picture, photograph, and like mounts.-A sheet of paper, board, &c. B has tabs A, C cut out of it and bent backwards to form respectively a means for suspension and a base for the attachment of a calendar pad, advertisement, &c. A picture, photograph, &c. is inserted at its corners under curved slits in the sheet B.
Patent GB-668140-A (GB)
Title: Improved process and catalyst for the synthesis of hydrocarbons
IPC: C07C1/04
Filed: 1950-02-03
Abstract: Liquid hydrocarbons of high olefin content are prepared by contacting a feed gas containing carbon monoxide and hydrogen with a dense fluidized mass of a catalyst comprising a mixture of an alkali metal salt promoted iron catalyst and a finely divided support, e.g. silica gel, carrying a mixture of cobalt and iron promoted with a minor amount of thoria (see Group III).  The feed gas may contain nitrogen and can be prepared by oxidizing natural gas with air, or by the water gas reaction from coal or coke; the H2 : CO ratio may be 0.5 to 2.0.  Reaction takes place at 50-500 lbs. per sq. inch gauge pressure and at 450-650 DEG  F.  The two catalyst components may be fed separately to the reactor, the proportions being adjusted so that the H2 : CO consumption ratio is substantially the same as the H2 : CO ratio of the feed gas.  Practically complete conversion of carbon monoxide is attained in a single pass.ALSO:A catalyst for converting mixtures of carbon monoxide and hydrogen to liquid olefinic hydrocarbons comprises a mixture of an alkali metal salt promoted iron catalyst and a finely divided support, e.g. silica gel, carrying a mixture of iron and cobalt promoted with a minor amount of thoria. The supported portion of the catalyst may contain 5-35 per cent of iron and cobalt in a Co : Fe ratio of 10 : 1 to 1 : 6, and may comprise, e.g. 2-25 per cent iron, 5-30 per cent cobalt, 1-5 per cent thorium, and 60-89 per cent silica gel.  The iron portion of the catalyst may be composed of pyrites ash, mill scale, or of iron supported on active carbon, and may be promoted with a minor amount of sodium or potassium chloride or carbonate.  In an example the catalyst is prepared by combining sintered iron pyrites (promoted with 1 per cent KCl) with a supported catalyst, containing 25.2 per cent Co, 2.8 per cent Fe, 4.4 per cent Th, and 67.6 per cent SiO2, prepared by mixing silica gel with the nitrates of cobalt, iron, and thorium, and heating to decompose the nitrates; the compound catalyst after reduction with hydrogen at 700 DEG F. contains 51.4 per cent Fe, 0.5 per cent KCl, 12.6 per cent Co, 1.4 per cent Th, and 33.8 per cent SiO2.  For the production of olefinic hydrocarbons the feed gas containing carbon monoxide and hydrogen may be prepared by oxidising natural gas with air at 50-100 p.s.i. gauge and 2000-2500 DEG F. in the presence of a nickel or copper on magnesium catalyst, or by the water gas reaction from coal or coke, followed by passing the product through a shift converter to increase the H2 : CO ratio and treatment to remove sulphur. The synthesis gas is reacted in the presence of a fluidized bed of catalyst (see Group IV(b)).  The two portions of the catalyst may be fed separately to the reactor, the proportions being adjusted so that the H2:CO consumption ratio is p  substantially the same as the H2:CO ratio of the feed gas.
Patent GB-879213-A (GB)
Title: Improvements in construction of flanged joints
IPC: B01J3/00
Filed: 1960-01-27
Abstract: 879,213. Making pressure vessels; bolted joints. GENERAL ELECTRIC CO. Jan. 27, 1960 [Jan. 29, 1959], No. 2944/60. Classes 83 (2) and 83 (4). A bolted joint for a high-pressure vessel, e.g. a jet engine combustion chamber, having a split outer casing formed with abutting projections or flanges 12 along the casing split line and secured together by bolts 30, is characterised in that the flanges include internal projections or tongs 14 along the casing split line and internal locking-means are provided to co-operate with the internal projections for prestressing the external projections to form a seal for said vessel. The locking means consists of an internal locking-bar 18 provided with a tapering groove 22 which engages similarly tapered portions 16 on the internal projections 14. The locking-bar is retained in position by bolts 28 passing through openings 29 between the abutting flanges and engaging in tapped holes in the locking-bar.
Patent GB-607328-A (GB)
Title: New acid wool dyestuffs of the anthraquinone series
IPC: C09B5/26
Filed: 1946-01-30
Abstract: Dyes containing a single carbazole residue are made by subjecting a 1.4-di-b -naphthylaminoanthraquinone to mono-acylation and sulphonation either successively in any order or simultaneously, ring-closing either during or after monoacylation, and subsequently hydrolysing with alkali any sulphonyl chloride which may be formed if chlorsulphonic acid is used as sulphonating agent.  Acid condensing agents are used to effect ring-closure, which may have to be completed by treatment with an oxidizing agent, which treatment may follow the dilution of the sulphonation mixture with water.  The products dye wool yellow or brown shades.  In examples, 1.4 - di - b - naphthylaminoanthra - quinone is (1) monoacetylated with acetic anhydride, cyclised and sulphonated with concentrated sulphuric acid, followed by treatment with an oxidizing agent or agents, viz. sodium dichromate in dilute sulphuric acid, potassium permanganate, sodium nitrite in conc. sulphuric, sodium hypochlorite, and hydrogen peroxide, (2) monoacetylated with acetic anhydride, cyclised with aluminium chloride in nitrobenzene, treated with sodium dichromate, and sulphonated, (3) treated with chlorosulphonic acid, and acetic anhydride to effect sulphonation, acylation, and ring-closure, (4) monoacylated with benzoyl chloride (or o-chlor-, p-bromo-, or m-nitro-benzoyl chloride or p-toluyl chloride), the monoacyl body being ring-closed in concentrated sulphuric acid in presence of sodium nitrite, and the product being then sulphonated with oleum. Specification 408,440 and German Specification 288,824 are referred to.  1.4 - Di - b  - naphthylaminoanthraquinone is obtained by condensing a mixture of quinizarin and leucoquinizarin with b -naphthylamine in boiling butanol in presence of boric acid.
Patent GB-1424862-A (GB)
Title: Resin compositions
IPC: C08L63/00
Filed: 1973-01-19
Abstract: 1424862 Modified epoxy resin esters RESEARCH CORP 14 Jan 1974 [19 Jan 1973] 3010/73 Heading C3B Resins useful in coating compositions are prepared by reacting: (I) a sucrose partial ester, (II) a dicarboxylic acid cyclic anhydride and (III) a diepoxide. I may have an average of about 5 ester group substituents and be prepared from vegetable oil fatty acids of drying semi-drying or non-drying oils, e.g. from dehydrated castor oil. II may be dodecenylsuccinic, nonenylsuccinic, soya acid/maleic acid adduct, tetrahydrophthalic, maleic, phthalic or succinic anhydride. A part of II may be replaced by a dimer fatty acid. III may be a bisphenol A diglycidyl ether. I, II and III may be reacted together or alternatively I and II may be preacted to a sucrose dihalf ester prior to contact with III. Reaction may take place at 20-120 C. optionally in the presence of an alkaline catalyst, e.g. a soap present as an impurity in I. Reaction may take place in solvent in which at least I and II are soluble. Water dispersible resins may be prepared by esterifying free OH groups in the product with a cyclic anhydride so as to introduce free COOH groups which may be neutralized to salt groups, e.g. with ammonia or a tertiary amine. Coating compositions containing conventional pigments and additives are described.
Patent GB-537091-A (GB)
Title: Improvements in multiplex telephony systems
IPC: H04J3/00
Filed: 1940-02-17
Abstract: 537,091. Multiplex telephony. PHILIPS LAMPS, Ltd. Feb. 17, 1940. No. 3070. Convention date, Feb. 20, 1939. Drawings to Specification. [Class 40 (iv)] In distributer systems in which the impulses of the various messages are separated by silent intervals, distortion in a long line causes the impulses to tail off and interfere with succeeding impulses thereby introducing cross-talk. Another form of interference is due to resonance effects occurring at the cessation of an impulse. Such interference is obviated by blocking the transmission line at a repeater during intervals or by arranging that only voltages above a certain threshold value are repeated. One arrangement comprises a blocking valve with two control grids, one receiving the impulses and the other a wave form of impulse frequency which paralyses the valve during the intervals, or an alternating current wave of large amplitude may be applied to the other grid, the positive swing of which is limited by grid current flow. In another arrangement, voltages below a threshold value are blocked by a back-biassed valve.
Patent GB-252761-A (GB)
Title: Improvements in or relating to seats convertible into bedsteads and the like
IPC: A47C17/18
Filed: 1925-02-04
Abstract: 252,761. Spalding, B., Waine, W. W., Waine, T. G., and Honeywill, E. G. Feb. 4, 1925. Bedsteads convertible into seats. - An armchair convertible into a bedstead, comprises two wings that form the arms of the chair and extend, above the level of the seat, and are connected together by a hingedly folding frame structure so as to enable one or both of them to be movable towards and away from the other so that, when in the bedstead position, they are disposed one at the head and the other at the foot thereof. In the construction shown in Figs. 1 and 2, the wings 16 are connected to bars 18 hinged at the corners A, B to the frame 17, and to convert the bedstead Fig. 1, into the arm-chair Fig. 2, the part 19 is folded over on to the frame 17, the part 20 is raised to form the seat back, and the bars 18, carrying the wings 16, are turned through a right angle. In the modification shown in Fig. 3, the wings 21, 22 are connected by a folding frame structure 23, 24, 25.
Patent GB-801713-A (GB)
Title: Improvements relating to semi-conductor devices
IPC: C30B31/04
Filed: 1955-02-03
Abstract: 801,713. Semiconductor alloys. RADIO CORPORATION OF AMERICA. Feb. 3, 1955 [March 1, 1954], No. 3219/55. Class 82(1) [Also in Group XXXVI] A PN junction semiconductor device comprises a silicon or germanium P-type body with an adjacent N-type region produced by alloying an electrode consisting of a mixture of indium and/or thallium as major constituent (preferably 80 or more atomic per cent) and phosphorus and/or arsenic. In one example, Fig. 2, a wafer 2 of P- type germanium is placed in contact with pellets 4<SP>1</SP>, 6<SP>1</SP> consisting of 97 per cent indium and 3 per cent phosphorus. The assembly is heated to about 500C. for five minutes to solder the base connection and alloy the pellets to the wafer; While the pellets are molten they dissolve some of the germanium and on freezing, the recrystallized portions retain more phosphorus than indium, since the former has much the larger segregation coefficient. Consequently the recrystallized regions are converted to N-type conductivity providing PN junctions 16 and 18. The indium, which is soft, ductile and readily alloyable with brittle semiconductors, effectively controls the metallurgical properties and avoids strains in the final alloy junction. Phosphorus also has a higher diffusion coefficient than indium, and this assists the tendency for the phosphorus to determine the conductivity type of the adjacent region. In. addition to the donor and acceptor constituents, a neutral diluent such as lead, tin, or gold (about 5 atomic per cent), may also be included in the mixture.
Patent GB-1531843-A (GB)
Title: Storage-stable emulsion concentrates
IPC: C09K23/42
Filed: 1976-01-28
Abstract: 1531843 Emulsifiable concentrates of pesticides HOECHST AG 28 Jan 1976 [30 Jan 1975] 03307/76 Heading ASE [Also in Division C3] Emulsion concentrates of water insoluble biocides contain an organic solvent, an anionic emulsifier and a non-ionic emulsifier having the general formula: in which each of x, y and z is an integer of 6-60, Y is a halogen atom or OR<SP>2</SP> in which R<SP>2</SP> is a C 1-4  alkyl, phenyl, tolyl or benzyl radical, a C 1-18  alkyl carbonyl group, an acetoalkyl group or an N-alkyl- or phenylcarbamoyl group. The products may be prepared by reaction of ethylene oxide and castor oil.
Patent GB-1050952-A (GB)
IPC: H03F1/06
Filed: 1964-01-27
Abstract: 1,050,952. Valve and transistor amplifying circuits; amplitude modulation. WESTING- HOUSE ELECTRIC CORPORATION. Jan. 27, 1964 [Feb. 25. 1963]. No. 3355/64. Headings H3R, H3T and H3W. An amplifying system comprises a plurality of signal paths each responsive to the input signal and generating a signal changed in phase with respect to that of the input signal, in which at least one path produces a variable phase shift proportional to the amplitude variations of the input signal. Amplifying means are connected in each of the signal paths, an output circuit receiving an output from each amplifying means and performing a vector summation of all the amplified signals so as to produce an output signal which reproduces the input signal in amplified form. In one embodiment the input signal from terminals 11, 12, Fig. 3, comprising an amplitude modulated carrier, is applied to a limiter 14 which removes the modulation. The resultant unmodulated carrier is fed to an amplifier 22 giving a phase-shift of 180 degrees and also to a phase modulator 20 which produces a phaseshift proportional to the original amplitude modulation. The outputs from phase-modulator 20 and amplifier 22 are fed respectively to amplifiers 28, 30 which may be non-linear. The outputs from amplifiers 28, 30 are combined, either by simple addition in an output load (Fig. 1, not shown) or by means of an untuned network 45 in which transformer 48 is provided with a centre-tapped secondary 49 so as to combine the output from amplifier 28 both in aiding sense and in opposition to that from amplifier 30, fed in via transformer 51: the additive term appears at the output load 36 and the subtractive is absorbed in isolator 40. In another embodiment, the amplitude modulated signal from terminals 11, 12, Fig. 5, is fed to a phase-splitter 21 which produces two outputs on lines 25, 27 the phases of which differ by 90 degrees. These are respectively fed to a linear amplifier 19 and a limiter amplifier 14, the output of the latter being of constant amplitude. The outputs of amplifiers 19, 14 are combined by a transformer 60 in such a manner that the outputs on lines 54, 58, while still amplitude modulated, are of equal amplitude and equally and oppositely phase-modulated in proportion to the amplitude modulation (Fig. 6, not shown). The signals on lines 54, 58 are amplified in amplifiers 28, 30, which may be non-linear, and are recombined in network 45, the summation being fed to aerial 75 and the difference to isolator 40. The arrangement is more particularly intended so as to enable high-efficiency non-linear amplifiers of the type described in Specification 1,037,826, to be used to provide an overall amplification which is linear.