baber/WOPTO huggingface dataset:
Patent GB-673111-A (GB)
Title: Improvements relating to motor road vehicle construction
IPC: B62D33/02
Filed: 1949-09-30
Abstract: 673,111. Motor vehicles. DAIMLERBENZ AKT.-GES. Sept. 30, 1949 [Oct. 1, 1948], No. 25159/49. Classes 79(iii) and 79(v) In a motor road vehicle, in which the driver's foot space is forward of the front axle and of the power unit and the power unit is arranged in the region of the driver's cabin under, alongside or behind the driver's seat, two longitudinal members of the vehicle frame are extended without interruption and on both sides of the central longitudinal vertical plane of the vehicle forwardly of the driver's foot space and the steering means, the control pedals and the gear lever are mounted upon the extended longitudinal members or upon a transverse member inter-connecting the longitudinal members. As shown the chassis frame comprises the longitudinal members a<SP>1</SP>, a<SP>11</SP> and transverse members p, b<SP>1</SP>, b<SP>11</SP>, the transverse members b<SP>1</SP>, b<SP>11</SP> being disposed respectively forwardly and rearwardly of the front and rear axles e, f and being connected with the axles by helical springs. The control pedals s and the steering column q carrying the change speed gear lever r are mounted on the transverse member p. A load receptacle I and the driver's cabin m are detachably mounted on the chassis frame, the seat in the latter being disposed above the engine c and the floor being disposed above the frame members.
Patent GB-1495679-A (GB)
Title: Substituted isophthalamic acids
IPC: A61K49/04
Filed: 1975-06-12
Abstract: 1495679 N - Substituted - isophthalamic acids MALLINCKRODT Inc 12 June 1975 [17 June 1974] 25206/75 Heading C2C [Also in Division A5] The invention comprises N-substituted isophthalamic acids wherein the nitrogen atom of the isophthalamic acid amide group is attached to a carbon atom which, in turn, is attached to at least two C 1-6  alkyl radicals substituted by one or more hydroxy groups or one or more C 1-4  alkanoyloxy groups, the compound being unsubstituted in the 2,4- and 6-position or being substituted at these positions by iodine atoms and being substituted in the 5-position by nitro, amino or hydroxy groups when they are unsubstituted in the 2,4- and 6-positions, or by nitro, amino, substituted amino, hydroxy or substituted hydroxy when they are substituted in the 2,4- and 6-positions by iodine atoms and esters and salts of said acids. The compounds are prepared by standard methods.
Patent GB-832900-A (GB)
Title: Process and apparatus for purifying and separating compressed gas mixtures
IPC: F25J3/08
Filed: 1958-08-06
Abstract: 832,900. Cold separation of gas mixtures. UNION CARBIDE CORPORATION. Aug. 6, 1958 [Aug. 12, 1957], No. 25260/58. Class 8(2). Removal of water vapour and carbon dioxide from a compressed gas mixture, e.g. air prior to rectification in a low pressure column 365 is effected by withdrawing a minor portion between 3 and 15% of the feed from a conventional return gas cooled heat exchanger 313 at a level such that the water vapour is condensed and is such quantity that the exchanger is self-cleaning, removing the carbon dioxide from said minor portion in alternating silica gel traps 321, diverting a portion of the so cleansed minor portion through a valved duct 327 and adding it to the substantially carbon dioxide free major portion leaving the cold end of exchanger 313, throttling in a valve 371 the remaining undiverted part of the withdrawn minor portion and adding it to part of the cold major portion through a valved duct 372 and thereafter expanding in a turbine 337 which discharges into the low pressure column 365. As shown said part of the major portion of feed gas in valved duct 372 is withdrawn from a scrubber 342 and a part thereof is warmed in a coil 351 in heat exchange at 350 with said diverted part of said withdrawn minor portion and is also warmed in a coil 319 in heat exchange with said withdrawn minor portion in a coil 318. Residual carbon dioxide in the liquid leaving the scrubber 342 is removed by filters 346 and the filtrate expanded into the low pressure column 365. In a modification the scrubber for the cold major portion of the feed is replaced by carbon dioxide absorption traps.
Patent GB-1011115-A (GB)
Title: Process for the production of gem-dinitro alcohols and gem-dinitro alkanes and products obtained by the process
IPC: C07C205/08
Filed: 1962-07-03
Abstract: A process for the production of gem-dinitro-alcohols or gem-dinitro-alkanes comprises reacting a 1-halo-1-nitro-alkane with an alkali metal nitrite salt and a base in the presence of water to form a slurry, diluting the slurry with water to form a solution, extracting said solution with an organic solvent, reacting the aqueous layer obtained from said extraction step with (1) a mixture of an aldehyde and an acid, or (2) an acid alone to form in aqueous medium a product consisting of 2,2-dinitroalcohol or 1,1-dinitroalkane, respectively, extracting said aqueous medium with an organic solvent, and treating the solvent extract to remove the solvent.  The acid is preferably a mineral acid and the aldehyde is preferably formaldehyde.  Examples are given.  In Example 3, the 2,2-dinitropropanol product is treated with methanolic potassium hydroxide to give potassium 1-nitro-1-ethanenitronate. The Specification also contains the subject-matter of Specifications 931,565, 999,066 and 1,011,116.
Patent GB-1355741-A (GB)
Title: Multiple track single gap magnetic heads
IPC: G11B5/29
Filed: 1972-05-31
Abstract: 1355741 Magnetic heads MAGNETIC HEAD CORP 31 May 1972 [25 June 1971] 25439/72 Heading G5R Two multi-element magnetic heads are simultaneously formed by mounting magnetic core members 18 in slots 14 in each of two housing sections 10, 12, the members 18 including C- shaped wound portions 20 and I-shaped non- wound portions 22, and then assembling the sections 10, 12, as arrowed, with I-portions in one mating with C-portions in the other. Slicing the assembly along the now-common channel region 26 separates the two heads.
Patent GB-951965-A (GB)
Title: Improvements relating to ferro-magnetic materials
IPC: C01G37/02
Filed: 1961-07-13
Abstract: Ferromagnetic chromium dioxide of tetragonal crystal structure of the rutile type is produced by heating at temperatures of 250-500 DEG  C. under a pressure of 50-3000 atms., a compound of chromium III combined with oxygen, together with an oxidising agent.  To produce pure chromium dioxide having an intrinsic coercive force of at least 200 oersteds, the compound of chromium III is first heated at a temperature of 200-600 DEG  C., under a pressure of 0.5-5 atm. in the presence of oxygen to give a thermal conversion product of intermediate valency.  The said thermal conversion product is then further treated with oxidising agents as described above.  The resulting product is in the form of acicular particles ranging up to 1.5 microns in length and having a media axial ratio between 2 : 1 and 20 : 1.  Neither the chromium III compound nor the thermal conversion product should contain more than 5% water if products of high coercivity are required. Water is used as a reaction medium in an amount of 1-300% by weight of the chromium compound. Oxidising agents specified are chromium trioxide, hydrogen peroxide and oxygen. Modifying agents e.g. antimony, tin or ruthenium oxides and salts can be added to increase the intrinsic coercive force.  The ferromagnetic chromium dioxide thus formed can be used in the production of magnetic recording members.  Specification 951,965 is referred to.
Patent GB-682122-A (GB)
Title: Improvements in or relating to chimney cleaning appliances
IPC: F23J3/02
Filed: 1950-10-19
Abstract: 682,122. Chimney cleaning; blowers. LENEY, C. H. W. Feb. 26, 1951 [Oct. 19, 1950], No. 25520/50. Class 126 An appliance for use in connection with the cleaning of chimneys comprises a piece of flexible material 1 adapted to fit over the chimney opening 5 at the base of the chimney, and having an opening 6 for the insertion of a brush or other cleaning device, and a plurality of suction pads 4 disposed around its periphery for detachably securing the appliance to the chimney breast while the sweeping or cleaning of the chimney is in progress. A piece of elastic 3 is fitted to the peripheral edge of the material 1, which is slightly gathered, so as to allow the material to be expanded when desired in order to cover chimney openings of varying sizes. A depending skirt 8 is also provided. The material 1 may be of asbestos or other non- inflammable substance in order that the appliance may be used as a blower. When used as such the skirt 8 is eliminated.
Patent GB-655913-A (GB)
Title: Manufacture of condensation products primarily intended for use in the treatment of textile materials
IPC: D06M15/423
Filed: 1948-09-30
Abstract: Textile fibres having improved anti-shrinking and anti-swelling qualities are obtained by impregnating the fibres with condensates obtained by condensing organic di- or poly-acid amides having no free acids groups, e.g. urea, melamine, or oxamide, in an acid medium with an amount of glyoxal such that only a portion of the reactive hydrogen atoms of the amide groups are substituted and then condensing the product thus obtained in an alkaline medium with sufficient formaldehyde to substitute the remaining hydrogen atoms of the amide.  The condensation with formaldehyde is preferably effected in presence of polyalcohols, e.g. glycerol, ethylene glycol or 1.6-hexane diol.  The product may be further condensed in an acid medium.  The textiles are impregnated with an aqueous solution of the product containing a catalyst, e.g. ammonium nitrate, wrung out, and dried at 110-120 DEG  C. for about 15 minutes.  In examples: (1) 1.5 kgs. urea are dissolved in 5.8 kgs. glyoxal solution; the solution is acidified with HCl, boiled and cooled; the white precipitate of glyoxal-urea is separated and mixed with an alkaline 30 per cent formaldehyde solution containing glycerol; the mixture is acidified, boiled until all the formaldehyde is combined, mixed with 20 gs. ammonium nitrate and the cellulose fabric immersed therein.  A decrease in swelling value from 100 to 53 and shrinkage from 15 to 0.5 per cent is obtained; (2) 2.52 gs. melamine mixed with 5.8 kgs. glyoxal are similarly reacted.ALSO:Textile fibres having improved anti-shrinking and anti-swelling qualities are obtained by impregnating the fibres with condensates obtained by condensing organic di- or poly-acid amides having no free acids groups, e.g. urea, melamine, or oxamide, in an acid medium with glyoxal and formaldehyde (see Group IV (a)).  The textiles are impregnated with an aqueous solution of the product containing a catalyst, e.g. ammonium nitrate, wrung out, and dried at 110-120 DEG  C. for about 15 minutes.
Patent GB-1405805-A (GB)
Title: Railway vehicle bogies
IPC: B61F3/04
Filed: 1973-05-29
Abstract: 1405805 Railway vehicle undercarriages GENERAL STEEL INDUSTRIES Inc 29 May 1973 [26 Dec 1972] 25564/73 Heading B7L A railway vehicle bogie comprises longitudinally spaced wheeled axles 3, a bogie frame 7, 7, 9, 9 supported on the axles, a transverse sub-bolster 25 swivelly supported at 33, 31 on the bogie frame and restrained at 27, 29, against tilting longitudinally thereof, a bolster 35, means 37, 39 supporting the bolster on the sub-bolster 25 for tilting movements thereon about an axis (e.g. extending horizontally through a point P at rail level) at a lower level than the axles 3, upright vehicle body support springs 43 seated on the bolster 35 at both sides of the bogie, and means 53U, 53L, adapted to hold the bolster against tipping movements about an axis transverse of the bogie and longitudinal movements, both with respect to a supported body 45, while permitting relative vertical movements therebetween. The means 37, 39 are inclined elastomeric pads with metal interleaf plates having normals passing through point P. Means 53U, 53L are anchor links connected between the bolster 35 at 49 at each side and body brackets 51.
Patent GB-1383885-A (GB)
Title: Electricity metering apparatus
IPC: G01R21/127
Filed: 1973-05-29
Abstract: 1383885 Measuring electrical energy SIEMENS AG 29 May 1973 [29 May 1972]  25602/73 Heading G1U An electrical energy metering system comprising a plurality V1, V2, .., Vn of electronic energy meters is characterized in that one or more circuits are common to all the meters. As shown there are two common circuits: firstly a D.C. power supply circuit N which produces D.C. power U B  for every meter from a supply R, S, T, O; and secondly a set of units MR, MS, MT, each of which converts an associated phase voltage U R , U S , U T  into a corresponding mark/space ratio significant pulse train, which pulse trains are applied on lines 1, 2, 3 to all the meters V1, V2, ..., Vn. Each meter also receives the phase currents J R , J S , J T  through the loads whose energy consumption is being measured. The arrangement is particular appropriate for large apartment buildings.
Patent GB-1149781-A (GB)
Title: Improvements in or relating to razor blades
Inventor: JOHNSTON RICHARD
IPC: B26B21/60
Filed: 1966-06-09
Abstract: 1,149,781. Coated razor blades. GILLETTE INDUSTRIES Ltd. 9 June, 1967 [9 June, 1966], No. 25743/66. Heading B2K. A process for the production 'of a razor blade comprises applying a coating of a fluorocarbon polymer to a cutting edge thereof and sintering the coating to adhere it to the edge, in which prior to, during, or after the sintering step the blade is heated at a temperature of at least 300‹F in a reducing atmosphere containing from 2 x 10<SP>14</SP> to 2 x 10<SP>15</SP> molecules of oxygen per cubic centimeter. The polymer may be a homo-polymer of tetrafluoroethylene or a co-polymer of tetrafluoroethylene with small amounts e.g. up to 5% by weight, of hexafluoropropylene, especially those having a molecular weight of 5000 or more. The desired concentration of molecular oxygen can be provided by controlled addition of a small amount of molecular oxygen to a reducing gas or a mixture of such gases, such as hydrogen or cracked ammonia and using the mixture obtained at normal atmospheric pressure. Alternatively a gas such as water or carbon dioxide which decomposes at elevated temperature to form an equili- 'brium mixture containing molecular oxygen may be employed. A further method is by the use of the air at a reduced pressure.
Patent GB-840655-A (GB)
Title: Improvements in or relating to electrical safety fuses
IPC: H01B1/02
Filed: 1956-08-23
Abstract: A fuse element comprises a silver or copper conductor, or alloys thereof, coated with an alloy which is at least ternary, one component of the alloy being a metal which alloys readily with the conductor but does not readily diffuse therein and another component being a metal which readily diffuses into the conductor but does not readily alloy therewith.  The alloy may for example comprise: .1-20%.(preferably 4-12%) of zinc .5-35%.(preferably 15-25%) of cadmium and a balance of tin  Preferably quaternary alloys are used, for example for a copper conductor: .1-20%.(preferably 4-10%) of bismuth .1-20%.(preferably 4-12%) of zinc .5-30%.(preferably 15-25%) of cadmium, and a balance of tin, or for a silver conductor: .5-30%.(preferably 8-20%) of bismuth .5-30%.(preferably 12-18%) of cadmium .10-40%.(preferably 24-30%) of lead, and a balance of tin Indium may replace the bismuth in the above examples.
Patent GB-797585-A (GB)
Title: Improved core making machine
Inventor: SELBY CLAUDE LESLIE
IPC: B22C23/00
Filed: 1953-09-18
Abstract: 797,585. Moulding-machines. CONSTRUCTIONAL ENGINEERING CO., Ltd. Sept- 13, 1954 [Sept. 18, 1953], No. 25797/53. Class 83 (1). [Also in Group XXX] A core-blowing machine comprises a cylindrical or conical sand container 7 into which air is admitted tangentially at the top and also at the bottom. The cylindrical or conical container is charged from a hopper 11 through a shutter 12. A core-box is placed on a table 15, adjusted vertically by a nut 17, and is clamped laterally by a cam lever controlling a plate 21a. The table 15 is raised by a lever 19 to clamp the container against the shutter 12 and the box against the container. Air is then admitted through orifices 27, 30 by a valve 33 to blow the sand through one or more apertures into the box. Lowering of the table causes a release of the pressure in the container. The table 15 and box-clamps may be operated by compressed-air. A baffle 35 prevents sand from running freely from the container when not under pressure. Specification 570,193 is referred to.
Patent GB-443916-A (GB)
Title: Manufacture of 3:4:6-triaminoquinolines
Filed: 1934-09-08
Abstract: 3 : 4 : 6-Triaminoquinoline and its derivatives are manufactured by nitrating a compound of the general formula <FORM:0443916/IV/1> where Z1 is hydrogen or acyl, Z2 is hydrogen or alkyl and Z3 is hydrogen or methyl (including urea derivatives with the 6-amino-group in the urea linkage) and reducing the nitro-group of the product.  In the preparation of the acyl compounds, acylation (including treatment with phosgene) may alternatively be effected after nitration but before reduction of the nitro-group.  Both the nitro-compounds and their reduction compounds have therapeutic properties.  In examples: (1) 4 - amino-6-acetylaminoquinaldine hydrochloride is nitrated, and the product reduced to 3 : 4-diamino-6-acetylaminoquinaldine; the product yields an azimido compound with nitrous acid; the acetyl group may be split off before or after the reduction of the nitro-group, whereby 3-nitro-4 : 6-diaminquinaldine and 3 : 4 : 6-triaminoquinaldine respectively are obtained; (2) 4 : 6-diaminoquinaldine is nitrated and the product reduced to 3 : 4 : 6-triaminoquinaldine; (3) 3-nitro-4 : 6-diaminoquinaldine is treated with cinnamic acid chloride and the product is reduced, yielding 3 : 4-diamino-6-cinnamoylaminoquinaldine; (4) the cinnamic acid chloride is replaced by fumaric acid chloride; the product yields an azimido compound with nitrous acid; (5) phosgene is used as acylating agent, producing the urea derivative. Specification 414,105 is referred to.
Patent GB-1061004-A (GB)
Title: Improvements in electric relays
IPC: H01H1/20
Filed: 1964-06-24
Abstract: 1,061,004. Electromagnetic relays. ARROW ELECTRIC SWITCHES Ltd. June 24, 1964 [July 29, 1963], No. 26072/64. Heading H2B. To ensure a sliding action each contact bridge 36 comprises a flexible member having contact surfaces 36a, 36c inclined to the direction of movement and co-operates with a pair of fixed contacts 26 having inclined contact surfaces 26b. The flexible contact bridges are made of phosphor-bronze and have arcuate silver contact buttons 36c at their ends. Elongated apertures in the bridges increase flexibility. Each fixed contact 26 has elongated parallel ridges 26c which are wiped over substantially their entire length by a contact button 36c during closure. The bridges are located in a two-part insulating carrier 30, 31 by pins 34 and are prevented from rotation by members 38 mounted on the pins. The members 38 also damp the contact bridges on opening. The two parts of the carrier are identical and are provided with interengaging portions.
Patent GB-1328958-A (GB)
Title: Process for the production of heavy duty foam resin products
IPC: B29C44/12
Filed: 1971-04-19
Abstract: 1328958 Foamed resin products BAYER AG 19 April 1971 [15 April 1970] 26160/71 Heading B5A Heavy duty foam resin products, e.g. polyurethane, are produced by applying a gel coat layer to the wall of an "auxiliary" mould, embedding therein a marginal zone reinforcement of fibrous wire fabric, wire grid, metal skeleton or synthetic resin skeleton, hardening the gel coat layer and removing the resulting preform from the mould, inserting it into a mould resistant to foaming pressures and of the same contour as the "auxiliary" mould and applying and foaming a foamable mixture therein. The gel coat layer may be brushed or sprayed on and may be a polyester, epoxide resin, polyvinyl chloride, polycarbonate or polyurethane. The reinforcement may be a glass fibre fabric with a top layer of fibre fleece, fabrics of synthetic fibres or wires, wire fabric, wire grid, textiles, or metal or synthetic resin skeletons, &c. Other parts may be fixed in the preform before foaming. The "auxiliary" moulds may be produced from glass fibre reinforced epoxy resin applied to a plaster cast taken of the "foaming" mould. The foam resin products may be automobile bodies, aircraft frames or hulls or frames of ships and boats.
Patent GB-1144535-A (GB)
Title: Position sensing system using light sensitive cells
IPC: G11B15/58
Filed: 1967-06-07
Abstract: 1,144,535. Measuring position photoelectrically. AMPEX CORP. June 7, 1967 [June 7, 1966], No.26242/67. Heading G1A. A system for sensing the position of a movable member, comprises a plurality of light-sensitive cells arranged in a row such that the total illumination of the cells is progressively altered as the member alters its position, and means providing a constant minimum illumination of the cells irrespective of the position of the member whereby the cells work on a linear region of their characteristic. The position of a magnetic tape loop in a buffer store comprising a vacuum chamber 24, Fig.2, is measured by a plurality of silicon photovoltaic cells 54 along the length of the chamber. The sides of the chamber 42, 50 are of transparent plastics material e.g. allyl diglycol carbonate so that light from a plurality of incandescent lamps or an elongated fluorescent lamp can always pass to the cells 54 through the walls 50, 42 and also across the corner of the chamber if not intercepted by a tape loop in contact with wall 50. The total output of the cells, which are connected in parallel thus depends upon the loop size, but the output of any given cell never leaves the linear region of the cell characteristic. A screen 56 shields the cells from ambient illumination. The loop size signal produced may be used in a conventional servosystem working on a take up or supply spool to keep the loop size within a predetermined range.
Patent GB-158315-A (GB)
Title: Improvements in fluid pressure hammers
IPC: B21J7/24
Filed: 1919-10-27
Abstract: 158,315. Williams, H. Oct. 27, 1919. Steam and other fluid-pressure hammers.-The piston 1 of an air or a steam hammer has a hollow upwardly-extending tail-rod 2 which is guided by a gland 4, and is of such diameter that the effective area above the piston may be equal to, or less than, that below the piston. Reference has been directed by the Comptroller to Specification 5601/08.
Patent GB-662442-A (GB)
Title: Improvements in or relating to yarn tensioning devices
Inventor: ECCLES THOMAS
IPC: B65H59/32
Filed: 1948-10-08
Abstract: 662,442. Yarn tensioning arrangements. BRITISH CELANESE, Ltd. Oct. 6, 1949 [Oct. 8, 1948], No. 26293/48. Classes 120(ii). and 142 (iv) [Also in Group VIII] A yarn tensioning device comprises a series of circular rings 16 through which, in succession, a yarn 23 can pass, so as to make frictional contact with the inner surfaces of the rings and a series of elements 23 alternating with the rings and adapted in conjunction therewith to constrain the yarn to follow a zig-zag path, the rings being free to rotate in their own planes about their centres. The weight of the rings, which are supported by the yarn, may be varied and the yarn may be threaded through some only of them. The elements 13 are made by bending stainless steel wire into hairpin shape. When idle, the rings are located by pins 15 and 18. Eyes 21, 22 guide the yarn to and from the device.