baber/WOPTO huggingface dataset:
Patent GB-455236-A (GB)
Title: Improvements in or relating to refractory articles
IPC: C04B35/107
Filed: 1935-04-15
Abstract: Refractory articles especially suitable for use in contact with molten glass, e.g. linings of glass tank furnaces, stirrers, throat blocks, &c., are cast from a melt of materials consisting of aluminous ore containing silica, and one or more oxides or carbonates of calcium, magnesium, barium, sodium or potassium without the addition of silica as an added ingredient.  The finished article contains not more than 15 per cent of silica and preferably from 2-5 per cent.  Preferably the proportion of the added oxides or carbonates is 1-10 per cent, and the alumina content is not less than 80 per cent.  In examples, the raw materials for a melt comprise (1) 94 parts of bauxite and 6 parts of soda ash, and (2) 97 parts of aluminous ore containing 3 per cent of silica, and 3 parts of barium carbonate.  Specifications 702/08 and 118,592, [both in Class 22], are referred to.
Patent GB-294299-A (GB)
Title: Improvement in chewing gum
IPC: A61Q11/00
Filed: 1927-05-02
Abstract: 294,299. Arkell, B. May 2, 1927. Chewing-preparations; coatings for medicines. -Magnesium oxide or hydroxide or an equivalent magnesium compound is incorporated in chewing-gum so as to act as an acid-neutralizing agent in the mouth. The magnesia may be mixed with the gum mass or may be in part mixed with the sugar coating. The gum may be composed of chicle, purified rubber, asphalts, paraffin, or mixtures thereof, and, in addition to the magnesia, sugar, and flavourings may be added. According to an example, a gum composition consists of paloge, chicle, sugar, glucose, magnesium hydroxide, and peppermint flavouring. This mass is formed into pellets which are coated with sugar containing magnesium oxide or hydroxide and a flavouring substance.
Patent GB-901820-A (GB)
Title: Improvements relating to the bladed rotors of rotary winged aircraft
IPC: B64C27/18
Filed: 1960-04-02
Abstract: 901,820. Rotary wing aircraft. SMITH, A. L. March 27, 1961 [April 2, 1960], No. 11709/60. Class 4. A rotor for a rotary wing aircraft comprises a hub a carrying four blades each sectorshape in plan, the upper and lower walls b, b<SP>1</SP> converging rearwardly to be left open at their forward edges but closed at their rear edges by a plate b<SP>3</SP>, slotted at b<SP>4</SP>, and at their outer arcuate edges by a plate b<SP>2</SP>. It is stated that during rotation of the rotor air expelled through the slots b<SP>4</SP> is ejected either into the interior of the following blade or below the blade, depending upon the angle of incidence of the blades.
Patent GB-542448-A (GB)
Title: Improvements in or relating to heaters for air for furnaces and the like
IPC: F28D9/00
Filed: 1940-07-15
Abstract: 542,448. Heating air for combustion. WEST, T. T. July 15, 1940, No. 11712. [Class 51 (i)] An air preheating device shown in Figs. 3, 4 and 5 to be applied to the door or wall of a furnace comprises a rectangular box having a ridged or undulating front wall 3, upper and lower side walls 4, 5, and end walls 6, 7 and a back plate 2 formed with an opening 2a. Air supplied through a pipe 19 secured in the opening 2a passes through passages A, B, C, D between partitions 11 ... 18 on the inner side of the wall 3 to holes or slots 10 from which it issues downwards on to the fire. The pipe 19, Fig. 12, is fitted with a cylindrical cap 38 formed with air inlets 39 and surrounding a rotatable barrel 40 formed with air inlets 41 so that the air supply may be regulated or shut off by turning a knob 44 on the barrel 40. The partitions may be of wavy or corrugated form to increase the heating area. The plate 2 is secured with interposed asbestos 33 to the wall 3 by a bolt 34 and the wall 3 is secured to the furnace door 8 by bolts 29 engaging interior recessed bosses 25, 26 and 27 or 271 in the wall. The walls 4 ... 7 are inclined to facilitate insertion of the device into the door opening. The plate 2 may be reversed if the air inlet is required to be on the opposite side of the heater. Fig. 8 shows an alternative arrangement of air passages formed by horizontal partitions 20, 23. Specification 485,987 is referred to.
Patent GB-736902-A (GB)
Title: Improvements in or relating to electrical contact converters
IPC: H02M1/20
Filed: 1953-04-28
Abstract: 736,902. Interrupters. SIEMENS-SCHUCKERTWERKE AKT.-GES. April 28, 1953 [April 29, 1952], No. 11745/53. Class 38 (5). In order to eliminate reciprocating sliding bearing surfaces in a contact converter which are difficult to lubricate, the end of a push-rod 4 connected to the strap 3 of an eccentric 2, or to a crank, on a shaft 1, is suspended by resilient bands 5. An insulating button 7 on the rod 4 controls a bridging contact 8 cooperating with fixed contacts 9. Preferably, the rod 4 is made resilient by reducing its crosssection so that the conversion of rotational into rectilinear movement is not effected solely by the bands 5. The rod may be suspended at two points spaced along its length (Fig. 3, not shown). In order to reduce the overall length of the arrangement, the end of the rod 4 is connected to a tube 12, Fig. 5, supported at both ends by resilient members 5. The button 7 is connected to the tube 12 through a nut 13 so that the effective length of the rod may be adjusted to vary the contact periods. To avoid the effects of radial and axial play between the screwed members, an outer tube 13, Fig. 6, carrying the button 7 is screwed to one end of the inner tube 12 and closely embraces the latter by a collar 14, whilst a spring 17 exerts an axial thrust between the two tubes. Resilient members 5 connected to the outer tube are attached to a member 15 adjustably screwed within a housing 6 to vary the effective length of the push-rod, the pitch of the threads of the members 6, 15 and the tubes 12, 13 preferably being the same. A spring 18 acting between a fixed support and the tube 13 relieves the compressive load on the rod 4. A number of push rods may be operated by the same eccentric by angularly spacing the rods around the shaft (Fig. 8, not shown). To reduce the space taken by the resilient members 5, they may make an acute angle α, Fig. 9, with a line through their point of attachment 21 to a a lug 20 on the outer tube 13 and the axis of the rod 4. There may be three such lugs 20 with members 5 spaced equiangularly around the rod (Fig. 10, not shown).
Patent GB-992264-A (GB)
Title: Hydrocracking process
IPC: C10G47/00
Filed: 1962-03-28
Abstract: Hydrocarbon distillates containing 10-1000 p.p.m. of total nitrogen and boiling in the range 320-1050 DEG  F. are hydrocracked using a catalyst which has been preferentially treated with ammonia to the exclusion of fouling by organic nitrogen compounds and using the treated catalyst in a continuous run of at least 750 hours in the presence of at least 1500 SCF hydrogen per barrel at 320-900 DEG  F., 500-3,000 p.s.i.g. and 0.2-15 vol/vol/hour while continuosly raising the temperature to maintain a conversion of at least 20% per pass of product boiling below the initial boiling point of the feed and to maintain ammonia absorbed on the treated catalyst in equilibrium with ammonia produced from organic nitrogen compounds.  The ammonia treatment may be effected prior to use but preferably is effected by contact with the feed hydrocarbon for not less than 100 hours at below 775 DEG  F. while increasing the temperature; when the catalyst is fully ammonia treated there is an abrupt levelling off in the necessary rate of increase of temperature.  The catalyst contains a hydrogenating-dehydrogenating component on an acidic, active cracking support, e.g. nickel sulphide and/or cobalt sulphide or silica-alumina, activated alumina, alumina-BF3 or a fluorided support.
Patent GB-1213962-A (GB)
Title: Turn-off permanent magnet
Inventor: ISRAELSON ARLO FLOYD
IPC: B23Q3/154
Filed: 1969-03-06
Abstract: 1,213,962. Magnets. ERIEZ MFG. CO. 6 March, 1969, No. 11894/69. Heading H1P. A permanent magnet device the external field of which may be " switched off " comprises a pair of polepieces 17, a ceramic stator magnet 19 and a ceramic armature magnet 10 supported on bearings in a casing 11. In the position shown the magnets aid one another and produce a field at pole faces 20 but by rotating the armature 10 through 180 degrees the magnets form a closed circuit and no external field is produced, Fig. 2 (not shown). The armature may be provided with curved polepieces 13, 14 and may be rotated to intermediate positions to provide a continuously variable external magnetic field. The device may be utilized in a magnetic sweeper, Fig. 3 (not shown), as a chuck, Fig. 4 (not shown), for lifting iron beams, Fig. 5 (not shown), or sheets, Fig. 7 (not shown), or for removing magnetic particles from material, Fig. 6 (not shown).
Patent GB-569979-A (GB)
Title: Improvements in or relating to coated fabrics
IPC: D06N3/02
Filed: 1943-07-21
Abstract: 569,979. Coated fabrics. BRITISH CELANESE, Ltd. July 21, 1943, No. 11914. Convention date, Aug. 5, 1942. [Class 140] Fabrics are coated with an organic ester of cellulose containing from 1.5 to 2 acidyl radicles per C6 H10 O5 unit in a volatile solvent and are then further coated with a weather resistant composition. The first coating may comprise cellulose acetate of acetyl value 40-45 per cent. or cellulose propionate, butyrate, acetatepropionate or acetate-butyrate of acidyl value corresponding to the acetate, in acetone. The coating composition may also contain ethyl alcohol, butyl alcohol, benzylalcohol, ethyl acetate, butyl acetate, ethyl lactate, butyl propionate, diacetone alcohol and ethylene dichloride; non-solvents such as benzene, toluene, xylene, solvent naptha and benzine; plasticisers such as di-(methylglycol) phthalate, dimethyl phthalate, ethyl phthalyl ethyl glycoleate, triacetin, mono-ethyl p. toluene sulphonamide, triphenyl phosphate, tricresol phosphate, diethyl phthalate, dimethoxy ethyl phthalate dibutyl phthalate; and synthetic and natural resins and gums such as phenol-aldehyde, phenol-betone, urea aldehyde, alkyd, kauri, copal, manila copal, congo copal and gum elemi. The second coating may comprise organic cellulose esters of higher degree of esterification, such as acetate of acetyl value 53-56 per cent. Other cellulose esters of equivalent degree of esterification, ethers such as ethyl or benzyl cellulose, or inorganic esters such as nitrate: the same solvents, plasticisers and resins may be used as for the first coating with the addition of methyl glycol and methyl glycol acetate. A further coating containing rubber or its derivatives as hydrochloride or chlorinated rubber may be given. The material can be used for covering aircraft frames. Specification 568,047, [Group IV], is referred to.
Patent GB-1144765-A (GB)
Title: Improvements in or relating to apparatus and methods of severing, shaping and forming tubular bodies
IPC: B21D26/12
Filed: 1966-03-18
Abstract: 1,144,765. Shaping tubes; cutting tubes. CONTINENTAL CAN CO. Inc. 18 March, 1966 [19 March, 1965], No. 11916/66. Headings B4B and B5A. [Also in Division B3] Apparatus for severing or shaping a hollow metallic, plastics or paper body comprises a die on one side of the workpiece and a chamber on the other containing air, water or oil, and means for causing an electrical discharge within the chamber to force the workpiece against the die. Conical workpieces, or workpieces of square or triangular cross-sections, may be corrugated. Cylindrical stock 22 may be severed against an internal die or an external, split die 20, Fig. 1, which is recessed 30 to flange the severed ends. Discs 36, 38 with sealing rings 42, 44 and separated by spacers 40, form an air chamber 34 in which a work-severing pressure-wave is produced by a spark discharged between electrodes 46, 48. The sealing rings may be expanded by compressed air, Fig. 3 (not shown). For re-shaping a tube, Fig. 4 (not shown), in a die, the discs (36, 38) are placed farther apart. An internal die may be used and an external chamber housing a plurality of pairs of electrodes, Fig. 5 (not shown). A rubber seal 80, Fig. 7, of channel section is used between the discs 76, 78 if a liquid is to be contained in the chamber 82. A similar seal may be used with internal or external re-shaping dies. A corrugating die 70<SP>1</SP>, Fig. 10, may surround the workpiece. A re-shaping operation may be preceded or followed by a severing operation.
Patent GB-669357-A (GB)
Title: Improvements in or relating to centrifugal compressors
Inventor: WILDE GEOFFREY LIGHT
IPC: F04D29/44
Filed: 1949-05-04
Abstract: 669,357. Centrifugal compressors. ROLLSROYCE, Ltd. June 22, 1950. [May 4, 1949] No. 11948/49. Class 110(i). In a centrifugal compressor of the kind in which the gas leaves the impeller in a radial direction and flows through a delivery passage to a diffuser, the diffuser comprises a number of channels through which the gas flows substantially without any radial component of velocity, the delivery passage or the diffuser cnannels or both are arranged to eliminate wholly or partly the circumferential component of velocity. Air delivered by the impeller 10 of a supercharger passes through an annular passage 16 which converts the radial component of velocity into an axial one substantially without diffusion. Passage 16 is defined by two annular casing parts 13, . 15. Diffusion occurs in channels 18 which are curved to eliminate swirl and are defined by annular walls 12a, 20 and lands 12b. Guide vanes 21, carried by tablets 22 secured in recesses in the wall 12a may be provided. Sheet metal delivery ducts 23 extend axially from an annular plate 24 and may be divergent to provide further diffusion. The compressor may form part of a gas turbine plant.
Patent GB-271066-A (GB)
Title: Improvements in method and apparatus for tempering chocolate
IPC: A23G1/18
Filed: 1927-05-04
Abstract: 271,066. National Equipment Co., (Assignees of Bausman, A. L.). May 12, 1926, [Convention date]. Valves controlled by pilot or relay valves.-Relates to a method of tempering large masses of chocolate or the like, which consists in automatically controlling the temperature of the confining walls of the mass, whereby said walls will be subjected to temperatures well above and well below the freezing point of the mass accordingly as the chocolate is below or above the predetermined temperature. A thermostat, positioned at the exit of a jacketed conduit, controls the admission of heating and cooling fluids to the jackets. As shown in the Figures, the invention is applied to a coating- machine, the main tank 31 having a tempering- jacket 37 and a rotary scraper and mixer 36 which prevents the chocolate from frezing to the inner wall of the tank. The chocolate is elevated by a pump 12 through a vertical conduit 10 and an outlet 33 to a flooding tank 34 and gravitates through the pervious conveyer 35 back to the tank 31. The pump casing is jacketed at 18 and the conduit 10 is surrounded by a jacket 15. A thermostat, having a sensitive element 27 positioned in the issuing stream, is adapted to operate valves 24, 25 which control the admission of hot or cold fluids to the jackets. The valve 24 is normally opened by a spring 40 and is closed by air pressure acting on a diaphragm 42. The valve 23 is normally closed by a spring 43 and is opened by air pressure acting on a diaphragm 45. The spaces 41, 44 are connected and are in communication with a pipe 46 leading to a compartment 47, Fig. 6, which is normally isolated from an air supply pipe and compartment 48, 49 by a ball valve 50. The valve 50 is lifted by a rod 51 which is actuated by the thermostat as follows : -The element 27 has a part 52 in which a member 53, Fig. 4, slides in accordance with the temperature variations, the member 53 abutting against an adjusting-screw 54 carried by a member 55 pivoted to a member 56 pivoted to a thermostat frame at 57. A heavy spring 58 is positioned between the members 55, 56 which normally moves as an integral member. The lever 56 abuts against the rod 51 and thereby lifts the valve 50. Springs 59, 60 also operate on the members 55, 56. The temperature adjustment screw 54 carries a pointer movable over a graduated dial 62. The conduit 10 is scraped by scrapers 28 carried on a concentric shaft 30 which is driven by chain and sprockets from the main machine. In operation, the heating- medium, i.e. steam from the pipe 22 or the cooling-medium, i.e. water, from the pipe 23, is admitted through the pipe 19 to the pump jacket 18 and passes through the pipe 16 to the conduit jacket 15 from which it is exhausted through the pipe 17 into the tank jacket 37 which has a waste pipe 38.
Patent GB-787753-A (GB)
Title: Improvements relating to licence holders for motor cars
IPC: B60R13/10
Filed: 1955-04-26
Abstract: 787,753. Vehicle licence holders. MORGAN, M. J., and BRIDGEWATER, G. May 14, 1956 [April 26, 1955], No. 11965/55. Class 73 A licence holder made of two sheets a and b of a flexible material secured together peripherally, at least one of which is transparent polyvinyl chloride of the kind that will adhere to glass, is provided with a transverse slot a' or an opening which is cut in one or other of the sheets to permit a paper licence to be inserted between them as shown in Figs. 1 and 2. The rear sheet may be transparent to enable advertising material to be displayed at the back of the licence. Fig. 3 shows an embodiment in which a transparent polyvinyl chloride back sheet has a protruding flange c<SP>1</SP> for attachment or additional attachment purposes and the complementary sheet d, which is secured by welding at c<SP>2</SP>, has a circular aperture d<SP>1</SP>.
Patent GB-1338316-A (GB)
Title: Cutting-off tool
IPC: B23B27/04
Filed: 1971-04-28
Abstract: 1338316 Cutting-off tools KOMET STAHLHALTER & WERKZEUGFABRIK ROBERT BREUNING GmbH 28 April 1971 [30 April 1970] 11975/71 Heading B3T A cutting-off tool comprises a holder body 1, a cutting bit carrying blade 2 secured to one side of the holder, an exchangeable cutting bit 4 located in a groove 5 at the operative end of the carrier blade and a clamping blade 3 engageable at one end with the cutting bit and at the other end with the rear end of the carrier blade, longitudinal clearance being provided between the clamping blade and the carrier blade except for the contact by the clamping blade with the cutting bit at one end and the carrier blade at the other. A clamping piece 16 is provided intermediate the ends of the clamping blade and which is screwed to the holder body 1 by screw 18. The clamping piece engages the top edge of the clamping blade to urge the blade into engagement with the cutting bit. The clamping blade is adjustable longitudinally along the carrier blade and relative to the cutting bit 4 by way of a set screw 15 in the end of the body 1 which acts on a slider 20 carrying stop member 14 of the rear end of the clamping blade. The holder body 1 is of L-shaped cross-section and the carrier blade is provided with a longitudinally extending tongue 2a which engages in slot 6 in the body 1 to which the carrier blade is secured. The clamping piece 16 is provided with a part spherical surface 17 to facilitate self alignment when in clamping contact with the body.
Patent GB-346994-A (GB)
Title: Improvements in or relating to inking apparatus for rotary intaglio printing machines
IPC: B41F9/06
Filed: 1930-04-16
Abstract: 346,994. Printing. DEBUS, K., 19, Nimroderstrasse, Waidmannslust, and BERLINER MASCHINENBAU AKT.-GES., VORM. SCHWARTZKOPFF, 23, Chausseestrasse, both in Berlin. April 16, 1930, No. 12089. [Class 100 (ii).] Inking-apparatus.-In rotary intaglio printing- machines having the printing-surface extending only partly around the circumference of the forme cylinder, means are provided for moistening the printing-plate for a predetermined portion either in front of, or in front of and behind, the part serving as the printing-surface with an ink-dissolving or ink-diluting medium which permits a scraper being applied to the printing-plate on the parts of the printing-plate which are not inked. The printing- plate c, as shown in the Figure, clamped on the plate cylinder b, having an etched printing-surface k and blank parts l and m, is inked on the printing-surface by means of a roller f and an oscillating roller g. A duct h contains an ink-dissolving medium which is transferred to the printing-plate on the parts l, m by an oscillating roller i. A scraper d underneath the frame cylinder is only lifted from the cylinder during the passage of the gap in which the plate is clamped. Wicks, sprayers, or the like may be used instead of the roller i.
Patent GB-768633-A (GB)
Title: Improvements in accelerators for natural and synthetic rubbers
IPC: C07D277/80
Filed: 1955-04-27
Abstract: The invention comprises compounds of the formula <FORM:0768633/IV(b)/1> where R is hydrogen, alkyl, aryl, aralkyl, alkenyl or cycloalkyl or a substituted such radical.  These are made by condensing benzthiazole - 2 - sulphenyl chloride (see Specification 536,514, [Group IV]) with 2 mols. of an amino-nitrile R-NH-CH2-CH2-CN, the second mol. acting as acid-binding agent. Examples show the preparation of compounds where R is methyl, isopropyl, cyclohexyl, phenyl, benzyl, and b -cyanoethyl.  It is stated that R may also be ethyl, butyl, hexyl, octyl, decyl, dodecyl, allyl, methylcyclohexyl, phenethyl, o-tolyl and p-anisyl. Amino-propionitriles R-NH-CH2-CH2- CN are made from acrylonitrile and R-NH2, where R is as above.ALSO:Natural and synthetic rubber is vulcanised in the presence of a compound of the formula: <FORM:0768633/V/1> as accelerator, R being hydrogen, alkyl, aryl, aralkyl, alkenyl or cycloalkyl or a substituted such radical.  In the example smoked p  rubber sheet is vulcanised with furnace black, zinc oxide, zinc salts of coconut fatty acids, pine tar, sulphur, an antioxidant and a compound of the above formula where R is methyl, isopropyl, cyclohexyl, benzyl or b -cyanoethyl.  The results are compared with those with benzthiezolyl disulphide.  The accelerator may be used in conjunction with fillers, pigments, softeners, antioxidants and other accelerators.  The process is applicable also to the rubbery polymers and copolymers of butadiene and substituted butadienes, e.g. hte copolymers with styrene, methyl acrylate, methyl methacrylate, acrylonitrile, isobutylene, methyl vinyl ether, vinylpyridines and vinylidene chloride.