baber/WOPTO huggingface dataset:
Patent GB-1096288-A (GB)
Title: An electromagnetic relay
IPC: B60Q11/00
Filed: 1966-09-19
Abstract: 1,096,288. Electromagnetic relays. UNITEDCARR Inc. Sept. 19, 1966 [Sept. 20, 1965], No, 41640/66. Heading H2B. A relay for lamp failure indication has a single spring low carbon ferrous member 22 forming the armature 29, arcuate hinge 28, base 34, back-stop support 35 and back-stop 36. The movable contact 24 on the end of the armature 29 co-operates with a fixed contact 25 or a support (26) on an insulating base 21 on which the base 34 and terminals are also mounted. The relay may have opposed windings 40 on the cope 39 and operate when the circuit of either coil is interrupted due to series lamp failure. In Fig. 3 (not shown), the back-stop has a small bent-over end for engaging the armature and is off-set to provide leverage to overcome any remanent magnetism therein.
Patent GB-1153158-A (GB)
Title: Improvements in or relating to Sealing Boots for use on Ball and Socket Joints
Inventor: LANGEN VIKTOR
IPC: F16C11/06
Filed: 1966-09-19
Abstract: 1,153,158. Sealing boots. V. LANGEN, [trading as A. EHRENREICH & CIE]. 19 Sept., 1966 [17 Sept., 1965], No. 41655/66. Heading F2B. A ball-and-socket joint is sealed by a sealing boot 4 comprising an annular open-ended casing of elastomeric material secured at one end to the housing 1, the other end embracing the joint pin 2 and being formed with a sleeve 8 that surrounds the pin and projects inwardly of the casing to bear against the head 3 and thereby prevent the boot riding up the pin. A collar 4a on the boot engages a groove in the housing 1 and has a groove 4b in which a clamping ring (not shown) may be fitted. The other end of the boot is surrounded by a collar 5 and a groove 7, in which a spring ring (not shown) may be fitted, is formed between a flange 6 and the casing wall. The bore of the sleeve 8 is formed to provide a tapering clearance 8c between the sleeve and the pin.
Patent GB-913485-A (GB)
Title: Method of and machine for cleaning clothes
IPC: D06F23/00
Filed: 1958-12-30
Abstract: 913,485. Washing-machines. KAHN, L. M. Dec. 30, 1958 [Dec. 30, 1957], No. 42050/58. Class 138 (2). [Also in Group XIII] A clothes drum 15 is rotated about a horizontal axis for washing and about a vertical axis for spin drying, the central longitudinal axis of the drum being horizontal in both cases. Fig. 1 shows the washing position, the drum 15 being rotated by a motor 24 through a friction drive 27, and being mounted on trunnions 18 on a yoke 20 in a tub 21. For spin drying, the drum 15 is transferred to a yoke 37 fixed to a shaft 34 rotated by a motor 32. Out-of-balance vibration is restricted by allowing the drum with its load of washed clothes to assume its natural gravitational position and looking it therein by means of a rack 51 and dog 52. This process may be repeated after giving the drum an initial intermediate speed rotation. In a modification (Fig. 5) the drum 15 and outer tub 70 are both rotated for spin drying by means of a shaft 77. Washing is effected by a motor 73 through a disconnectable sliding coupling 74.
Patent GB-1285759-A (GB)
Title: Method of producing a coloured film from a black-and-white picture
IPC: G03C7/22
Filed: 1969-08-25
Abstract: 1285759 Producing colour pictures from black and white pictures MINNESOTA MINING & MFG CO 25 Aug 1969 [26 Aug 1968] 42323/69 Headings G2C and G2E A method of converting black and white pictures into colour pictures comprises projecting a black and white image on to a surface 22 using mirrors 12, 14, applying opaque colour to the surface 22 in appropriate areas and, while maintaining the projection of the black and white image on said surface 22, photographing the composite image using mirrors 14, 18 and a colour film. Cine-films may be so converted by successive application of the method, the second (and successive) application of opaque colour being only sufficient to synchronize the previously coloured areas with the second (and successive) black and white image. Static background objects are conveniently coloured on the white surface 22 while moving foreground objects are coloured on a transparent sheet 23 on top of the surface 22.
Patent GB-1313439-A (GB)
Title: Cation exchange conversion of hydroxylamine sulphate to hydroxylamine nitrate
IPC: C01B21/14
Filed: 1971-09-13
Abstract: 1313439 Hydroxylamine nitrate UNITED STATES ATOMIC ENERGY COMMISSION 13 Sept 1971 [12 Oct 1970] 42540/71 Heading C1A Hydroxylamine nitrate is prepared by passing an aqueous solution of hydroxylamine sulphate over a strongly acidic cation exchange resin whereby the hydroxylamine is absorbed on the resin, washing the remaining sulphate ion from the bed with water and passing on aqueous nitric acid solution through the bed to elute the hydroxylamine as the nitrate. Preferably a 1M solution of hydroxylamine sulphate is used, and the eluant may be 1 to 3M. The process may be carried out at temperatures between 10‹ and 40‹ C. with flow rates through the bed of from 6 to 10 ml./min.-cm.<SP>2</SP>.
Patent GB-1277834-A (GB)
Title: Films of polyamide-imides
Inventor: GATTUS J
IPC: C08G/
Filed: 1970-09-04
Abstract: 1277834 Polyamide-imide films RHONEPOULENC SA 4 Sept 1970 [5 Sept 1969] 42562/70 Heading B5B A process for the production of a film of a polyamide-imide having an elongation at break of at least 34% in the longitudinal direction and comprising structural units of the Formula I in which R is a trivalent organic radical with at least two carbon atoms and A is a divalent radical containing at least one benzene nucleus and which has a uniplanar axial structure [defined] comprises stretching a film of a polyamide-imide while it contains at least 1% by weight and preferably between 5 and 30% by weight, of a polar organic solvent, in at least one direction ata temperature between 100 and 350 C. and then subjecting the film to a supplementary heat treatment at a temperature of between 100 and 350 C. whilst preventing it from shrinking in any direction throughout the treatment. Suitably the polyamide-imide is made either from (a) reaction of an aromatic carboxylic acid anhydride of Formula II in which X is -COOH, and a difunctional compound of general formula Y-A-Y in which A is a radical containing at least one benzene nucleus, for example mphenylene, p-phenylene, p,p<SP>1</SP>-diphenylene or of Formula (IV) in which B is, for example, -O-, -CH 2 -, -C(CH 3 ) 2 -, -SO 2 - or -N = N-, and Y is an -NCO group or a group of formula -NHCOOR<SP>1</SP> in which R<SP>1</SP> is an alkyl radical of between 1 and 6 carbon atoms or a phenyl or tolyl radical, or (b) from reaction of an anhydride of Formula (V) where Z is -COCl, and a diamine of formula H 2 N-A-NH 2  where A has the same meaning as before. Preferred starting materials are trimellitic anhydride and 4<SP>1</SP>,4-diisocyanatodiphenylether or 4,4<SP>1</SP>-diisocyanatodiphenylmethane. The film may be made by casting a solution of the polyamide-imide, in the solvent, preferably N-methyl-2-pyrrolidone, which is to be present during the stretching operation, on to a support, suitably, of metal; removing sufficient solvent to form a film which still contains at least 1% by weight of the solvent, and removing the cast film from the support. The casting solution may also contain at least 0À5% by weight of an aromatic di-, tri- or tetra-carboxylic acid anhydride, and at least 0À5% by weight of an aromatic diprimary amine. During the stretching process the film is preferably stretched in two directions successively to a stretch ratio of between 1À1 and 1À6.
Patent GB-427314-A (GB)
Abstract: 427,314. Arm-rests. BURROUGHS ADDING MACHINE CO., 6071, 2nd Boulevard, Detroit, Michigan, U.S.A. Sept. 20, 1933, No. 26002. Convention date, Nov. 14, 1932. [Class 52 (ii)] An arm-rest structure for chairs comprises U-shaped members 10, 11, the bases of which extend across the chair beneath the seat and are attached to and supported from the under side thereof, the arm rests 21, 22 being supported on the ends of the members 10, 11. The armrests are preferably detachably and adjustably connected to the U-shaped members. The latter are connected to the chair by means of bolts 13 extending through the seat and through sleeves 14, and are thus readily removable. Nuts 20, Fig. 3, are welded into the upper ends of the U-shaped members, and the arm-rests are secured by bolts 35 to a plate 24, which is secured to the members 10, 11 by bolts 27 passing through the plate into the nuts 20. By reversing the position of the plate 24, different positions of the arm-rests may be obtained.
Patent GB-1526081-A (GB)
Title: Corona suppression in high voltage windings of dynamoelectric machines
IPC: H02K3/40
Filed: 1975-10-20
Abstract: 1526081 Insulating conductors of high voltage machines WESTINGHOUSE ELECTRIC CORP 20 Oct 1975 [29 Oct 1974] 42908/75 Heading H2A To reduce voltage stress and effect corona suppression in the stator winding of a high voltage dynamo-electric machine in which the winding conductor 22 cross-section has linear parts meeting at a curved edge, one or more electrically conductive layers 26 are disposed within the thickness of the insulation 24, 28 around the conductor 22, with the or each layer 26 being substantially coaxial relative to the conductor and located such that:- where the curved edge of the conductor has a radius r, the insulation has a radial thickness T in the curved region surrounding said edge, n is the number of layers 26, and x l  is the spacing of the ith layer 26 from said curved edge of the conductor 22. The stator (10), Fig. 1 (not shown) is laminated and has mica, asbestos or fibreglass wedges (14) retaining the conductors 20 slots (12), micanite separators (16) being located between adjacent conductors in each slot. The insulation 24, 28 may be formed by multiple layers of tape, e.g. mica splitting tape or mica paper and the layers 26 may be metal foil or conducting impregnatable tape to allow vacuum impregnation of the composite insulation 24, 26, 28. The conducting layers 26 extend axially out from the ends of the slots (12) as does an outer semiconductor layer 29, e.g. silicon carbide, on the insulation, layer 26 extending at least as far from the slots as layer 29, to provide axial voltage grading in addition to the radial grading produced by layers 26.
Patent GB-899789-A (GB)
Title: Pencil clays
Inventor: MURRAY HAYDN H
IPC: C09D13/00
Filed: 1960-12-20
Abstract: A clay composition for admixture with graphite to form pencil lead comprises 10 to 70% (preferably 40 to 60%) by weight of an alkaline earth metal bentonite, e.g. calcium and/or magnesium bentonite and 90 to 30% of kaolin of particle size 100% less than 2 microns and 95% less than 1 micron.  The bentonite is preferably a non-swelling, pulverized, commercial bentonite, degritted by flotation, centifruging or similar process.  The amount of clay composition used may be up to 35% of the total pencil lead formulation and up to 35% thereof may comprise kaolin clay having a particle size distribution comparable to that of the powdered graphite incorporated.  Other conventional ingredients, e.g. dyes, may be added to the clay composition.
Patent GB-1093696-A (GB)
Title: Improvements in production of reconstituted tobacco
IPC: A24B15/12
Filed: 1966-09-30
Abstract: A method of making reconstituted tobacco sheets by grinding tobacco plant components, comprising extracting water soluble constituents of the ground tobacco components by leaching with water, separating the fibrous phase from the product of the leaching operation consisting essentially of an aqueous phase from the the fibrous phase, converting the fibrous phase into a thin sheet, concentrating the aqueous phase, thereafter applying the concentrated aqueous phase to the thin sheet of the fibrous phase and drying the resulting sheet product, is characterized in that water insoluble solids are separated from the aqueous phase before the concentrating and application of the resulting aqueous phase to the fibrous phase sheet.  At least 50% and preferably 90% of the water insoluble solids content is removed from the separated aqueous phase.  Removal may be effected by centrifuging.
Patent GB-1159522-A (GB)
Title: Air regeneration unit
IPC: C25B1/04
Filed: 1966-10-03
Abstract: 1,159,522. Air regeneration unit. MINE SAFETY APPLIANCES CO. 3 Oct., 1966 [19 Oct., 1965], No. 44070/66. Heading F4V. An air regeneration unit includes a stack of discs 4 pressed from potassium superoxide or sodium superoxide mounted in a tube 1 and having exposed surfaces made by: central holes in each disc; circumferential spacing from the wall of the tube by strips of metal 8 or radial projections on the discs; and moulded projections 5 on one side of each disc. An electric fan 9 is mounted on a casing 10 which fits inside the tube 1, and a debris trap 14 of wire mesh pads and a dust filter 15 and a further mesh pad 16 are also included, the whole assembly being retained in the tube by removable split rings 11 and 17. Preferred dimensions are given.
Patent GB-929505-A (GB)
Title: Improvements in steam strainers for steam turbine plant
Inventor: LONDON JOHN CLARE
IPC: B01D45/08
Filed: 1960-12-22
Abstract: 929,505. Gas filters. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 27, 1961 [Dec. 22, 1960], No. 44080/60. Class 8(2). Steam flows first through a (coarser) cylindrical strainer 1, then through an annular gap and finally through the interstices between parallel plates forming an edge filter element. The interstices are provided by separate spacers 5 of predetermined thickness. The plates may be wholly annular or, as shown, quarter annular, each plate having a central hole 30 and two end recesses 31 for stacking on pillars 4. Adjacent sets of plates may be staggered angularly 45 degrees. Spacing dimples 6 may be provided. Flow may be radially outwards, the strainer then being located within the edge filter element.
Patent GB-1142440-A (GB)
Title: Improvements in or relating to a method of manufacturing a pictorially illustrated phonograph record
IPC: B29D17/00
Filed: 1967-09-28
Abstract: 1,142,440. Gramophone records. K. SAKAMOTO. 28 Sept., 1967 [12 Oct., 1966; 29 May, 1967], No. 44089/67. Heading G5R. A pictorially illustrated gramophone record is made by bonding a layer of thermoplastic material to an illustrated surface of a base by means of a solution of polyvinyl alcohol. The thermoplastic material is transparent and has a sound track impressed therein.
Patent GB-1272168-A (GB)
Title: Process for preparing cumene
IPC: C07C15/085
Filed: 1970-09-16
Abstract: 1,272,168. Cumene. ALLIED CHEMICAL CORP. 16 Sept., 1970 [22 Sept., 1969], No. 44244/70. Heading C5E. Cumene is prepared by catalytically hydrogenating, at 24-400 C. and 0-5000 p.s.i.g., α-methylstyrene obtained from the decomposition of cumene hydroperoxide the hydrogenation being performed on α-methylstyrene which is substantially free from hydroxyacetone. Hydroxyacetone may be removed from crude α-methylstyrene by water washing, extractive azeotropic distillation or treatment with an amine which reacts with carbonyl group containing impurities.
Patent GB-1048530-A (GB)
Title: Production of neopentyl glycol
IPC: C07C29/54
Filed: 1965-10-20
Abstract: A process for production of neopentyl glycol comprises hydrogenating, preferably under hydrogen pressure of 900 to 6000 p.s.i.g., a mixture comprising hydroxy pivaldehyde and isobutyraldehyde in a hydrogenation zone preferably at 175 DEG  to 220 DEG  C. in the presence of a copper-chromium oxide hydrogenation catalyst and obtaining a product containing neopentyl glycol isobutanol.  The hydrogenation catalyst may contain in addition to copper and chromium one or more promoters such as barium, cadmium, magnesium or a rare earth metal.  The product from the hydrogenation zone is subject to fresh fractional distillation at sub-atmospheric pressure so as to produce a neopentyl glycol rich fraction and an isobutanol rich fraction, the former being subjected to further fractional distillation at sub-atmospheric pressure to obtain a neopentyl glycol rich fraction substantially free from residual salts and catalyst residues as overhead product which is fractionated in a train of at least two fractional distillation columns so as to separate it into (a) a fraction having a boiling point below that of neopentyl glycol, (b) a substantially pure neopentyl glycol fraction and (c) a fraction having a boiling point above that of neopentyl glycol.  The mixture of hydroxy pivaldehyde and isobutyraldehyde is obtained by condensing formaldehyde with stoichiometric excess of isobutyraldehyde by reaction in the presence of a liquid aqueous phase containing an alkali metal hydroxide aldol condensation catalyst and then a liquid organic phase containing the required mixture is separated which is submitted to the hydrogenation zone.
Patent GB-1061402-A (GB)
Title: Improvements in or relating to electron devices for generating high frequency oscillations
Inventor: LUCKEN JACK AUGUSTUS
IPC: H01J25/68
Filed: 1962-11-28
Abstract: 1,061,402. Klystrons. ELECTRIC & MUSICAL INDUSTRIES Ltd. Nov. 28, 1963 [Nov. 28, 1962], No. 44915/62. Addition to 914,307. Heading H1D. An electron discharge device as described and claimed in the parent Specification has a conductor 15 for supplying direct current to the reflector electrode 9, the conductor being connected to the reflector electrode at substantially a nodal point of the electric field mode used. The conductor is preferably covered with lossy material so as to absorb lower frequency modes.
Patent GB-1513899-A (GB)
Title: Impression tray for dental purposes
IPC: A61C9/00
Filed: 1975-10-30
Abstract: 1513899 Dental impression trays BAYER AG 30 Oct 1975 [15 Nov 1974] 44918/75 Heading A5R A dental impression tray has upper and lower trays with in one bite surface 2 elongate openings 3 through which in use of the tray impression material is squeezed to enter intersecting or punctiform grooves 6 in the other bite surface so that when individually removed from the patient's mouth the trays can be matched up. A gap-equalising plate may be fixed, by adhesive or by studs entering openings 7, to either tray and is formed on its outer surface with the openings or grooves of that tray.
Patent GB-1066308-A (GB)
Title: Filter unit
Inventor: HUMBERT KINGSLEY E
IPC: B01D35/30
Filed: 1965-10-22
Abstract: A combined anti-drain (inlet) and bypass valve is enclosed wholly within a screw-on disposable oil filter cartridge for an I.C. engine. It consists of an annular disc adapted to cover the inlet ports at one end of the cartridge and a cylindrical flange upstanding from the inner periphery of the disc and normally covering bypass ports in a short tube surrounding the outlet spigot of the cartridge.  The valve member is spring-biassed to closed position.  Normal oil pressure at the inlet is sufficient only to raise the valve member to a position where the inlet ports are uncovered but the bypass ports remain covered.  When there is sufficient restriction in the cartridge (e.g. owing to clogging) to raise the inlet oil pressure above a predetermined value, the valve member is raised higher to uncover the bypass ports also.
Patent GB-1099959-A (GB)
Title: Improvements in or relating to burners for pulverised coal or like solid fuel or for liquid or gaseous fuel
IPC: F23R3/04
Filed: 1965-10-28
Abstract: 1,099,959. Burners. J. M. BEER. Oct. 27, 1966 [Oct. 28, 1965], No. 45652/65. Heading F4. A burner for pulverized, liquid or gaseous fuel comprises concentric nozzles 1A-1F formed by rings 2A-2F each of Venturishaped axial section and mounted on pipes 3A-3F such that the inner end of the divergent part of each nozzle is aligned with the outer end of the adjacent inner nozzle, the burner being adapted for gaseous fuel and a reactant gas e.g. air, oxygen, carbon dioxide to be supplied through alternate pipes 3A-3F, and pulverized fuel through outlets 7 and 7X. When pulverized fuel is used all pipes 3A-3F are connected to a reactant gas supply. Gases are supplied to the pipes 3A-3F through tangential tubes 9A-9F. Alternatively the gases may be supplied through axial tubes and baffles provided in the pipes to rotate them. The ends of pipes are flared to continue the divergence of the nozzles. The pipes may be fixed or axially adjustable with respect to each other. Bracing may be provided between the pipes. Outlet 7X may be an annular spray, a ring of spray jets or a succession of fan jets.
Patent GB-1268053-A (GB)
Title: Rotary plate-slitting shear
Inventor: KOLLEN GEORGE P
IPC: B23D19/04
Filed: 1968-09-26
Abstract: 1,268,053. Shearing. UNITED ENG. & FOUNDRY CO. 22 Sept., 1969 [26 Sept., 1968], No. 45810/68. Heading B3W. Rotary plate-slitting shears comprise frames 10, 11, driven shafts 22, 23, rotatable in bearings 24, which carry disc cutters 25, 26 and eccentrics 14, 15 between the frames rotatable through gears (16)-(18) Fig. 3 (not shown) to displace the upperframe 10 to and from the lower frame 11. The shaft 22 can be moved axially to vary the horizontal spacing between the cutters by means of a sleeve 31 slidable in the frame 10, held against rotation by a key 32 and secured to a sleeve 31A in which the shaft 22 is rotatable. The shaft bearing 24 is located in the sleeve 31. Spur gear 3, in engagement with the threaded exterior of the sleeve 31A, is driven via gear 35 from motor 36 to cause axial movement of the bearing 24 and thus of the shaft. The frames 10, 11 can be moved vertically in unison by means of a driven shaft 51, levers 49, 50 screwed on to the shaft and depending from the axles 39 of wheels 42, 43 running on beams 37, 38 and eccentrics 44, 45 also mounted on the axles 39 and connected to brackets 46, 47 depending from the frame 11. Rotation of the shaft 51 displaces the levers 49, 50 and the eccentrics and thus the frames 11 and 10. The frames 10, 11 can also be moved horizontally in unison by means of horizontally-driven shafts (58) Fig. 2 (not shown) rotatable in blocks (55), (56) spaced along a sub frame (58) of the shear and carrying nuts (59) received in brackets (61) depending from the frame 11. Clamping means (not shown) may be provided to maintain predetermined adjustments of the shear parts described.
Patent GB-1141910-A (GB)
Title: Cyclic compounds
Inventor: CORBIER BERNARD PIERRE
IPC: C07D317/72
Filed: 1966-10-13
Abstract: 1,141,910. Cyclohexane ketones and enol derivatives thereof. S.A. DES ETABLISSMENTS ROURE-BERTRAND FILS & JUSTIN DUPONT. 13 Oct., 1966 [14 Oct., 1965], No. 45844/66. Heading C2C. [Also in Division A5] Diketones of the formula wherein R 1  and R 2  are the same or different and are each C 1-5  alkyl or cycloalkyl radicals, or together form a C 1-5  alkylene radical, R 3 , R 4  and R 5  are the same or different and are each hydrogen or C 1-5  alkyl radicals, and enol ethers, enol esters and ketals of these compounds with C 1-5  alcohols or acids, may be prepared by reacting a ketone of the formula with a C 1-5  alkyl orthoformate in the presence of an acid catalyst, and optionally subjecting the reaction product to hydrolysis, ketalization, enol etherification or enol esterification. The initial reaction products obtained are generally a mixture of enol ethers having the Formulµ III, IV and V wherein R is a C 1-5  alkyl radical (or in Formula IV R may be an allyl radical), and they may be converted into the corresponding diketones by hydrolysis. The diketones may be ketalized for example by reaction with an alkylene glycol having up to 5 carbon atoms to obtain monoketals of the formula wherein each R is a C 1-5  alkyl radical or together may form an alkylene radical containing up to 5 carbon atoms. The diketones may be converted into enol ethers by reaction with a C 1-5  alkyl orthoformate in the presence of a Lewis acid or into enol esters by reaction with a conventional esterifying agent, e.g. a functional derivative of a carboxylic acid such as an ester or anhydride.