baber/WOPTO huggingface dataset:
Patent GB-758174-A (GB)
Title: 2-amino-4-cyclohexylamino-1, 3, 5-triazine and its salts and preparation thereof
IPC: A61K31/00
Filed: 1954-10-11
Abstract: The invention comprises 2-amino-4-cyclohexylamino-1,3,5-triazine and its salts.  The base is obtained by reacting cyclohexylamine hydrochloride with dicyandiamide and cyclising the result N-cyclohexylbiguanide hydrochloride with a source of formic acid in solution in an alcohol and in the presence of an alkali metal reducing agent.  In examples the source of formic acid is ethyl formate and sodium is the alkali metal.  The base is converted into its hydrochloride, tartrate, malate and theophylline addition compounds.  Compounds with glucoronolactone, sulphathiazole, sulphanilamide and thiamine are also referred to.  The products are diuretics.
Patent GB-1390386-A (GB)
Title: Processor in which operations are controlled by strings of micro-operators executed in sequence
IPC: G06F9/26
Filed: 1972-06-14
Abstract: 1390386 Microprogrammed processes BURROUGHS CORP 14 June 1972 [28 June 1971] 29319/74 Divided out of 1390384 Heading G4A The description is identical to that of Specication 1,390,384, but the claims are directed to a microprogrammed process including an arithmetic unit having a variable length parallel adder, the number of significant bits in an output operand from the adder being controlled by a bias register, the contents of which are determined by a comparison between the field length of data to be processed and the maximum parallel bit capacity of the adder.
Patent GB-337539-A (GB)
Title: Improvements in and relating to filters or strainers for petrol or other liquids
IPC: B01D29/15
Filed: 1929-09-27
Abstract: 337,539. Fenn, A. G., and Anglo- American Oil Co., Ltd. Sept. 27, 1929. Filters having sheet filtering-materials; filters fitted in pipes.-In filters or strainers for petrol or other liquids, a maximum filtering area is provided creating little back pressure. An outer case 1 has at its ends caps 2, 3, having apertures 6, 7. respectively as an inlet and outlet for the liquid. Within the case 1 and concentric with it are perforated cylinders 8, 9, of such a diameter as to leave an annular space. The: cylinder 8 contains a wire gauze tube 14, while a similar tube 15 is fitted externally to the cylinder 9. Bag-like. bodies of chamois leather &c. may be used in addition to the wire gauze. Between the inner ends of the cylinders is a helical spring 13 which engages the ends of inwardly dished perforated bodies 11<a>, 12a, fitted respectively into the cylinder 8, 9. The spring detachably connects the cylinders together and holds them rigid in channels in the caps. The bodies 11<a>. 12a are provided with sheets 8<a>, 9<a> of fine wire gauze. The bodies 11<a>, 12a may be imperforate so that no liquid passes straight through.
Patent GB-608627-A (GB)
Title: Improvements in wheels for railway carriages, trams and like vehicles
IPC: B60B17/00
Filed: 1945-11-05
Abstract: 608,627. Vehicle wheels. DEGERFORS JARNVERKS AKTIEBOLAG. Nov. 5, 1945, No. 29390. Convention date, Dec. 11, 1944. [Class 144 (i)] In a railway wheel of the kind described in Specification 629,887, in which the tyre is welded, without substantial shrinkage, to a disc body, the latter is now formed of S- or other waved profile so as to provide considerable flexibility in the wheel. Fig. 1 shows a wheel disc having a pronounced bowed portion 2<SP>1</SP> welded to the hub 3 and tyre 1 at 4, 7 respectively. Fig. 3 shows a modification in which a separately-formed rim 5 is welded to the disc 2 at 9, the flanged inner edge 5<SP>1</SP> being welded to the tyre at 7, and the outer edge of the rim engaging an undercut flange 6 at that edge of the tyre.
Patent GB-1387300-A (GB)
Title: Reusable mandrel
IPC: C23C4/18
Filed: 1972-06-23
Abstract: 1387300 Making reusable mandrels; cores UNION CARBIDE CORP 23 June 1972 [24 June 1971] 29455/72 Headings B3A and B3F [Also in Divisions B2 and C7] A mandrel for use in producing castings or plasma-deposited bodies having zero degree draught or re-entrant geometries comprises a base material of melting temperature above 650 C., a coated metallic alloy layer of melting temperature below 700 C., and lower than the melting temperature of the base material and a second coating of a neutral plastics composition having a higher melting point than the alloy. The base material is of aluminium, brass, steel or copper. The alloy coating which is <SP>1</SP>/ 16  to 1 inch thick and may be applied by spraying, brushing, casting or painting, includes at least one of Bi, Pb, Sn, Cd, In or Sb. The plastics coating is of polyimide, especially one derived from pyromellitic dianhydride and an aromatic diamine. The base mandrel may have locking grooves or projections to increase securement of the alloy. After deposition of the alloy, the mandrel may be machined to conform it to the contour of a body to be produced thereon. The plastics coating may be roughened by grit blasting to improve adhesion to the material to be formed thereon. In the examples, free standing beryllium bodies are prepared by plasma deposit - ing Be powder on the coated mandrel heating the sprayed mandrel in an oven to melt the alloy layer so as to enable the mandrel to be removed and peeling the polyimide film from the beryllium structure. The mandrel can then be recoated for reuse.
Patent GB-918828-A (GB)
Title: Improvements in or relating to continuous treatment devices for light sensitive sheets
IPC: G03D13/00
Filed: 1961-08-16
Abstract: 918,828. Processing light-sensitive sheets. RITZERFELD, W., and RITZERFELD, G. Aug. 16, 1961 [Aug. 26, 1960; July 5, 1961 (2)], No. 29517/61. Class 98 (2). A continuous treatment device for lightsensitive sheets has means for guiding the sheet through a container of treatment liquid, a thermostatically controllable heating device below the guides, a supply container for the liquid above the guides, and a device for controlling the flow of liquid from the supply container to maintain a constant liquid level in the treatment container. In the arrangement shown, the developer liquid is contained in a bath 8, which can be slid laterally out of the main housing formed by a base 1 and a removable hood 7. The light-sensitive sheet is conveyed through the bath between two gridlike guiding members 9, 10. The upper guide 10 is fixed to the bottom of a closed air-tight container 11 which holds a supply of developer liquid 12. This liquid flows into the bath through an opening 41, controlled by a setting- screw 14, in a level-controlling device 13, which maintains, the liquid level B-C in the bath constant during the processing procedure. A resistance heater 42 and thermostat 43 enable the liquid to be maintained at a predetermined temperature. In operation, an exposed lightsensitive sheet 45 is fed in on table 19, layered side up, and passed between inlet rollers 25, 26 into the developing bath. Meanwhile an ink sheet 46 with a folded-over front edge 47 is placed on a table 20. The developed sheet 45 engages in the folded-over edge of sheet 46, pushing the latter along with it. The two together pass between rollers 27, 28, and out of the apparatus, where they are then separated by hand. The ink sheet 46 now has an imagepattern adhering to it from sheet 45. The ink sheet 46 is once more placed on table 20, a paper sheet 55 on table 21, and the two passed again in contact between rollers 27, 28, when the paper sheet has transferred thereto an image from the ink sheet 46. In the modification of Figs 3 and 4 (not shown), two heating elements are provided, which are connected in parallel so as to bring the liquid up to the required temperature quickly, and then automatically switched over to series connection for maintenance at a lower heating power.
Patent GB-886472-A (GB)
Title: Process for the production of diphenylamines
IPC: C07C209/68
Filed: 1960-08-26
Abstract: Diphenylamines are prepared by decarboxylating diphenylamine-2-carboxylic acids by heating to 150 DEG C.-250 DEG C. in the presence of aniline, an aniline derivative or a mixture thereof as solvent or flux.  The solvent may be, for example, an alkyl, alkoxy or chloro aniline or a diphenylamine, particularly the diphenylamine to be obtained by the decarboxylation.  Examples describe the preparation of phenyl, methoxy, ethoxy and chloro diphenylamines and of chloromethoxy and ethoxy-diphenylamine.
Patent GB-810357-A (GB)
Title: Ductile iron castings and methods of making same
IPC: B22C9/00
Filed: 1956-09-28
Abstract: 810,357. Casting-processes. MORRIS BEAN & CO. Sept. 28, 1956 [Sept. 29, 1955], No. 29695/56. Class 83 (1). In casting ductile-iron, thin-sections are cast ductile by providing a layer of refractory heatinsulating-material in the mould-member to provide a thermal-barrier adjacent said sections. Said material may be hollow spheres or spherules of glass, alumina, blown aluminium silicate, blown mica, or phenolic resin, filled with nitrogen. The particles are bonded in situ, e.g. by a thermosetting resin. A facing layer of resinbonded sand may be backed with said material, which is then backed by a coarser resin-bonded sand.
Patent GB-254962-A (GB)
Title: Improvements in or relating to spring suspensions for motor cars
IPC: B60G15/04
Filed: 1925-11-24
Abstract: 254,962. Cappa, G. C., and Itala Fabbrica di Automobili. Nov. 24, 1925. Torque-rods.-Each of the front springs of a motor vehicle is provided with a combined torque-resisting and vibration-damping system comprising a single member 2 connected to a bracket on the axle 8 by a ball-and-socket joint 4 and pivoted to the frame. 1 by a friction coupling 3.
Patent GB-536448-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B13/04
Filed: 1939-11-09
Abstract: 536,448. Lenses. TAYLOR, TAYLOR & HOBSON, Ltd., and WARMISHAM, A. Nov. 9, 1939, No. 29708. Drawings to Specification. [Class 97 (i)] A photographic or like objective comprises five air spaced simple elements, the first and fourth being divergent, the others being convergent, the first being meniscus and convex to the front, and the radius of curvature of the front surface of the fourth element being greater than that of its rear surface. The space between the first and second elements is preferably not less than the equivalent focal length of the whole objective nor greater than 3.5 times it. The first element may be of glass having an AbbÚ number greater than 55, and may have a focal length greater than 1.5 times the equivalent focal length and less than 6 times it. The fourth element may have a mean refractive index greater than 1.65, an AbbÚ number substantially less than 33.5 and a front surface having a radius of curvature greater than 3.5 times the equivalent focal length, and greater than 10 times that of the rear surface of the element ; its separation from the third element may be greater than 10 per cent. of the equivalent focal length. Data for two examples are set out. Specification 477,424 is referred to.
Patent GB-659729-A (GB)
Title: Improvements in mechanical drives
IPC: G11B19/20
Filed: 1949-11-21
Abstract: 659,729. Driving sound reproducing machines. PHILIPS ELECTRICAL, Ltd. Nov. 21, 1949, No. 29714. Convention date, Nov. 24, 1948. [Class 40 (ii)] [Also in Group XXIV] Arrangements of belt reduction gearing are described which reduce the radial bearing pressure on the driving shaft. A member to be driven, e.g. the turntable 4 of a gramophone, is engaged by two belts 6, 7, each driven by a driving pulley 1 and passing over guide pulleys 8, 9. As shown, the planes containing the axis of the driving pulley and the axes of the pulleys 8, 9 are inclined at an angle of 150 degrees but the angle may be increased up to 180 degrees if larger pulleys are used. A two-speed belt reduction gear (e.g. for longplaying records) is also described, Fig. 3 (not shown), in which the two guide pulleys are mounted on a plate pivoted so that either belt may be brought into contact with the turntable 4. The belts are driven at different speeds by two pulleys on the driving shaft, and the plate may be resiliently mounted to provide belt driving pressure. Alternatively, the turntable and tone arm may move to engage either belt. In a modification, Fig. 2 (not shown), one belt is used for a single-speed drive, the driving pulley being situated between two quick pulleys, one larger than the other. The guide pulleys may be resiliently mounted to maintain belt tension, or jockey pulleys may be provided.
Patent GB-225699-A (GB)
Title: Improvements in or relating to ironing and pressing machines
IPC: D06F67/08
Filed: 1923-11-26
Abstract: 225,699. Alliott, E. A., and Manlove, Alliott & Co., Ltd. Nov. 26, 1923. Ironing-machines with rollers rotating against concave surfaces, heating-arrangements for. - The inner surfaces of the heated hollow beds, particularly of Decoudun machines, are provided with a series of ribs or projections or both so as to form a plurality of grooves or pockets to increase the heat transference from such beds. The inevention is described with especial reference to machines heaving beds comprising a number of connected chambers such as those described in Specification 17917/06. Fig. 1 shows the bed provided with a series of transverse ribs 1. Gaps are left in the ribs at desired intervals, or stops are provided in the channels 2 formed between the ribs to assist in the discharge of water of condensation. In Fig. 5 the bed is ribbed longitudinally and, in other forms, not shown, intersecting series of ribs may be. provided.
Patent GB-737379-A (GB)
Title: Improvements in photomechanical reproduction materials and processes
IPC: G03F7/022
Filed: 1951-12-19
Abstract: Dioxane solutions of the azo dye obtained from diazotized 4-amino-41-hydroxydiphenyl and b -naphthol, and of naphthoquinone-(1 : 2)-diazide - (2) - 5 - sulphochloride are mixed, treated dropwise with aqueous caustic soda solution to effect condensation, and then poured into dilute hydrochloric acid to precipitate the scarlet dye resulting.  This product may be further coupled at the quinone diazide group with phloroglucinol. Specification 565,752 is referred to.ALSO:Napthoquinone - (1 : 2) - diazide - (2) - 5-sulphochloride is condensed at the sulphochloride group with propyl alcohol, butyl alcohol, glycol, diethylamine, phenol, p-cresol, p - nitrophenol, b - naphthol, 2 : 3 - dihydroxynaphthalene, p - hydroxymethylaniline, 1-hydroxy - 5 - amino - naphthalene, 71 - hydroxynaphtho - 11 : 21 : 4 : 5 - imidazole, methylaniline, 2 - ethylamino - naphthalene, 4 : 4-dihydroxy - diphenylsulphone, 4 : 41 - dihydroxybenzophenone, 4 - hydroxy - 4 - aminodiphenyl, 1 : 1 - bis - (4 - aminophenyl) - cyclohexane, aminofluorene, 2 - hydroxy - anthraquinone, 1 : 4 - dihydroxy - anthraquinone, bis-[2 - hydroxy - naphthyl - (1)] - dimethylmethane, diaminocarbazole, b  : b  - bis - (4 - hydroxyphenyl) - propane, p  2 : 21 - dihydroxydinaphthyl-(1) - methane and 41 - hydroxydiphenyl - (1)-azo-2-hydroxynaphthalene. Naphthoquinone-(1 : 2) - diazide - (2) - 4 - sulphochloride is condensed with p-cresol.  The condensations are effected by addition of sodium carbonate solution to the mixed reaction materials in a solvent such as dioxane.  Specification 565,752 is referred to.
Patent GB-672970-A (GB)
Title: Improvements in chimney cleaning equipment
IPC: F23J3/02
Filed: 1948-11-16
Abstract: 672,970. Suction cleaners. LANGDOWN, A. W. F. May 9, 1949 [Nov. 16, 1948], No. 29804/48. Class 8 (i). [Also in Group XI] A portable suction unit for use in cleaning chimneys (see Group XI) comprises an upper section 11 to which a flexible pipe carrying soot &c. from the chimney is attached, a section 8 which contains removable litter bags 9 for retaining the soot and is provided with an air exhaust 10 and a lower section 6 containing an electrically operated suction device. A fourth section 13 may be provided to contain spare adaptors and flexes &c. and a pad containing disinfectant may be placed over the exhaust 10.
Patent GB-1108916-A (GB)
Title: Improvements relating to disc brakes for vehicles
Inventor: REDMAYNE LEONARD
IPC: F16D55/2255
Filed: 1964-07-21
Abstract: 1,108,916. Disc brake. GIRLING Ltd. 8 July, 1965 [21 July, 1964], No. 29843/64. Heading F2E. A disc brake of the kind in which a calliper straddles a disc and is mounted to swing about an axis substantially at right angles to the axis of the disc, a friction pad being applied to one face of the disc by actuating means located in one limb of calliper while the other pad is applied to the opposite face of the disc by reaction is characterized by the drag on the directly actuated pad when the brake is applied being taken directly by a stationary member. In one embodiment two arms are provided in the stationary member which have faces which abut the edges of the pad back plate. The faces are arranged parallel to a radius passing through the centre of pressure of the pad. Where two circumferentially spaced hydraulic cylinders are provided in the calliper a single stationary member may be located between the axes of the bores to take the drag or torque in both directions of rotation of the disc.
Patent GB-464843-A (GB)
Title: Process for the manufacture of highly acetylated cellulose
IPC: C08B3/06
Filed: 1935-10-29
Abstract: Cellulose acetate in fibrous form is obtained by causing cellulose material to react with a mixture of acetic anhydride, acetic acid, a catalyst and an anti-solvent, a quantity of acetylating liquid greater than 15 times the weight of cellulose being used, and the proportion of anti-solvent being only slightly greater than that just necessary to prevent solution of the cellulose acetate and being always less than 25 per cent of the weight of the acetylating mixture.  The use of substances which by themselves boil at temperatures below 0 DEG  C. is avoided. If desired, the cellulose may be pretreated with acetic acid at a temperature below 80 DEG  C., preferably below 30 DEG  C.  The proportion of acetylating liquid may be greater than 40 times the weight of cellulose, and the proportion of anti-solvent may be in some cases reduced to less than 10 per cent of the acetylating bath.  Ether or benzene may be used as anti-solvent.  The acetic anhydride may be greatly in excess of three times and even greater than 10 times the weight of cellulose, and it may be increased so as to take the place of most of the acetic acid. The process may be carried out in rotating apparatus if desired with stirring devices and without cooling devices.  Fixed apparatus with stirrers may be used.  The acetylating liquor may circulate at high speed through the swollen cellulosic mass.  The cellulosic material may be cotton wool, linters, long fibre cotton, woven cotton cloth, or dyed cotton cloth.  Cellulose tri-acetates insoluble in most solvents may be obtained.  According to the time of reaction, products giving very viscous solutions in methylene chloride-alcohol, or products giving less viscous solutions may be obtained.  The acetylating liquid after use may be employed for a subsequent acetylation after eliminating surplus acetic acid and adding the necessary quantity of acetic anhydride, and catalyst.  In an example, cotton linters are pretreated with acetic acid and then mixed with a cooled mixture of acetic anhydride, acetic acid, benzene, and sulphuric acid.  In other examples, ether is used instead of benzene, and perchloric acid instead of sulphuric acid.  The acetylating liquid may be cooled below 0 DEG  C. before coming into contact with the cellulose.  Specification 231,837, [Class 2 (ii)], is referred to.
Patent GB-871047-A (GB)
Title: Method of processing carnallitic mineral salts
IPC: C01F5/30
Filed: 1958-09-18
Abstract: Magnesium and potassium chlorides are recovered from minerals containing them, for example carnallite, in a cyclic process which comprises dissolving the mineral in an aqueous <PICT:0871047/III/1> medium, separately salting out magnesium and potassium chlorides by means of hydrogen chloride, expelling hydrogen chloride from the remaining aqueous medium, and returning the aqueous medium to dissolve further raw material.  In the Figure, carnallite is dissolved in vessel V in an aqueous medium containing 1-16% HCl, which HCl content is simultaneously reduced to a maximum of 1% by heating to about 90 DEG C. and by a mild air stream.  The resulting liquor and solids are passed to tank VII, and any remaining HCl is neutralised with limestone or dolomite at above 90 DEG C.  The solid material is removed and passed to tank XIV, where it is treated with a solution containing more than 12% HCl.  The residue consists of rock salt and impurities.  The solution is passed to tank XV and hydrogen chloride is passed in via line 39, the temperature being maintained above 40 DEG C.  MgSO4.H2O is precipitated and recovered, and the resulting mother liquor is used in the treatment of further solids from tank VII.  The liquor from tank VII is further clarified in tank VIII, cooled in IX, and potassium chloride which crystallises out is removed in tank X. The liquor now passes to tank I via line 14, in which tank the HCl content is adjusted to a maximum of 1%, the temperature being between 20 DEG C. and 30 DEG C.  This solution is next passed to tank II where it is cooled to below 20 DEG C., the HCl concentration being adjusted to more than 12%, whereby sodium chloride and carnallite are precipitated, which are passed to tank V, and the solution is passed to tank III, where the HCl concentration is adjusted to about 20%, thereby precipitating magnesium chloride. The solution now passes to tank IV, where HCl is distilled off until its concentration is about 16%, thereby precipitating magnesium sulphate present.  The remaining solution is passed to tank V, where the HCl concentration is adjusted to about 1%, and this liquor is now used to treat a fresh charge of carnallite.
Patent GB-887452-A (GB)
Title: Material spreading apparatus
IPC: A01C3/06
Filed: 1960-08-31
Abstract: 887,452. Manure distributers. KUCERA, J. B., and McELHINNEY, E. M. Aug. 31, 1960, No. 29980/60. Class 6(1). A manure distributer comprises a body 21 fitted with an endless conveyer 35 which feeds material to spreader and beater means which comprises chains 43, 44 mounted on shafts 41, 42. The shaft 41 is driven from the tractor power shaft through shafts 82 and 91 and bevel gearing 93. The shaft 42 is driven from shaft 41 by means of a shaft 97 mounted on a member 52 which may be pivoted about the shaft 41 to adjust the position of the shaft 42 a slot 49 being provided for that purpose. A hood 111 is provided. The conveyer 35 is driven from the tractor power shaft through shafts 82 and 101 and gearing 104. In a modification the upper shaft 42 is omitted and deflector members are arranged in a fan-like manner at the end of the conveyer 35.
Patent GB-897873-A (GB)
Title: Improvements in or relating to headsets
IPC: H04M1/05
Filed: 1959-09-03
Abstract: 897,873. Headsets, earpieces. FERRANTI METERS Ltd., DENIS, and ALCOCK, B. J. Dec. 1, 1960 [Sept 3, 1959], No. 30062/59. Class 40 (4). A headset has an earpiece having a recessed chamber to face the ear and an annular surrounding portion 3 containing a duct 4 which, from an opening 5 connected to a tube 6 from a sound generator 7, expands approximately exponentially to an opening into the side of the recessed chamber. The earpieces are made of a soft and pliable material and are used in a crash helmet where it is undesirable to have hard objects next to the head.