baber/WOPTO huggingface dataset:
Patent GB-1052949-A (GB)
IPC: B29C70/00
Abstract: 1,052,949. Laminates and laminating. BRITISH CELANESE Ltd. Dec. 4, 1963 [Dec. 5, 1962; Aug. 21, 1963], Nos. 45909/62 and 33033/63. Heading B5N. A laminate comprises a sheet which may be extruded of thermoplastic polymeric material such as high or low density polyethylene, polypropylene (including isotactic polypropylene), polyethers, polycarbonates or polyaldehydes united, preferably by hot-pressing between calender rollers, to a woven or knitted fabric incorporating glass fibres and fibres of a thermoplastic polymeric material compatible with the material of the sheet, the glass fibres providing the major proportion of the tensile strength of the fabric in at least one direction. The fabric is preferably so constructed that the majority of the thermoplastic fibres are near that surface of the fabric to which the thermoplastic sheet is to be united, e.g. by using satin weave having a warp formed wholly from glass fibres and a weft including glass and thermoplastic fibres. A layer or layers of resin-bonded glass fibres may be attached to the exposed surface of the fabric, and the exposed surface of the thermoplastic sheet may be decorated.
Patent GB-1053576-A (GB)
IPC: H02P7/295
Abstract: 1,053,576. Control of D.C. motors. HANCOCK & CO. (ENGINEERS) Ltd. Aug. 25, 1965 [Sept. 3, 1964], No. 36055/64. Heading H2J. [Also in Division G3] Rectifier D 1  and capacitor C supply partially smoothed D.C. to shunt field winding MF, a silicon controlled rectifier SCR supplies current to armature MA, and a variable portion of the field voltage is derived from potentiometer RV for application to the gate 13. The desired speed of the motor is set by slider 14, a stable point being reached at which the back E.M.F. of the motor permits an average current to pass through the rectifier SCR which is just sufficient to maintain the chosen speed. Diodes D2, D3, protect the silicon controlled rectifier.
Patent GB-1054149-A (GB)
IPC: F17C9/04
Abstract: 1,054,149. Liquefaction and re-vaporization of natural gas. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Nov. 8, 1965 [Nov. 9, 1964], No. 47244/65. Heading F4P. Liquefaction of natural hydrocarbon gas or revaporization of the gas in the liquid phase is effected by heat exchange with a refrigerant having a freezing point at atmospheric pressure near the boiling point of methane and having a boiling point above or slightly below ambient temperature. Suitable refrigerants include isobutane, isopentane, isohexane and mixtures thereof. After revaporization of liquid methane transported by tanker, the so-cooled refrigerant is fed into the tanker reservoir, transported back to the supply port and used to liquefy natural gas being loaded into the tanker. The so warmed refrigerant may be used as fuel or transported back to the unloading port.
Patent GB-1227259-A (GB)
IPC: A01C15/00
Filed: 1969-03-14
Abstract: 1,227,259. Distributers for powdered or granular material. H. VISSERS N.V. 14 March, 1969 [21 March, 1968; 29 Jan., 1969], No. 13561/69. Heading A1D. [Also in Division B8] Fertilizer is discharged from hopper 1 at 8 to the swinging pneumatic jet 9, the discharge being assisted by conveyer screw 10 which is universally pivoted at 18, its other end being supported at 12 by means of bell crank lever 13, 15 pivoted at 14 and operated by handle 16 outside hopper 1. The whole is carried by frame 2 connected at A to a tractor, the screw being driven via two clutches shown from shaft 19 connected to the said tractor. A spring may be connected to the bellcrank lever 13, 15 to take the weight of the screw as it lies on the material.
Patent GB-1227294-A (GB)
IPC: C07C6/12
Filed: 1969-04-15
Abstract: 1,227,294. Isomerizing and/or disproportionating alkylaromatics. MOBIL OIL CORP. 15 April, 1969 [18 April, 1968], No. 19265/69. Heading C5E. Alkylaromatics are isomerized and/or disproportionated in the presence of a crystalline zeolite having a given X-ray powder diffraction pattern, and known as ZSM-4 zeolites. The oxide composition of such zeolites is given as follows: where M is a cation of valency n, J is Al or Ga, Q is Si or Ge, and z is 0-20. Suitable cations are metals, NH 4 , H, alkylammonium and arylammonium. The zeolite may be composited with another zeolite, a clay, silica or any of a variety of oxides and oxide mixtures. The process is particularly suitable for isomerizing xylenes and disproportionating toluene, though other feeds are mentioned.
Patent GB-1229028-A (GB)
IPC: C07C49/205
Filed: 1968-09-06
Abstract: 1,229,028. Methyl vinyl ketone. BADISCHE ANILIN- & SODA-FABRIK A.G. 6 Sept., 1968 [9 Sept., 1967], No. 42429/68. Heading C2C. Methyl vinyl ketone is prepared by dehydration of butan-1-ol-3-one containing 10-75% by weight of water with reference to the amount of butan-1-ol-3-one, using aluminium oxide as a dehydration catalyst. The process may be operated in the liquid or gas phase at 100-300‹ C. at pressures from 20 torr to 50 atmospheres.
Patent GB-1230676-A (GB)
IPC: F16D3/74
Filed: 1969-07-28
Abstract: 1,230,676. Making universal joints; electroerosion. SINGER-GENERAL PRECISION Inc. 28 July, 1969 [25 Sept., 1968], No. 37730/69. Headings B3A and B3V. [Also in Division F2] A universal joint for incorporation in the drive of a gyroscope of the type described in Specification 1,103,490 consists of a cylindrical block 10 divided into three gymbal portions, of which the central and end ones 16, 18 are connected by small integral zones 48, 50 permitting relative tilting by flexure about a transverse axis 32, while the central and other end gymbal portions 16, 20 are connected by zones 40, 42 arranged at right-angles to zones 48, 50 to allow tilting about a perpendicular axis 30. The joint is produced by drilling four sets of adjacent radial holes 62, 62<SP>1</SP>; 63, 63<SP>1</SP>; ... to form neck portions 53, 54 . . . in central member 16, the gymbal elements being separated preferably by electric discharge machining using an L-sectioned electrode 78 inserted radially to pass through the holes, Figs. 7, 8.
Patent GB-1231535-A (GB)
IPC: B29C44/34
Filed: 1969-03-07
Abstract: 1,231,535. Extruding foamed thermoplastics. LAVORAZIONE MATERIE PLASTICHE S.p.A. 7 March, 1969 [23 March, 1968], No. 12206/69. Heading B5A. [Also in Division C3] In a process of extrusion moulding foamed thermoplastics, a gaseous nucleating agent is injected into the barrel of the extruder to be dispersed in the molten resin upstream of a point where a foaming agent is injected into the molten resin, the injection points being between zones where the resin is compressed sufficiently to form hydraulic sealing plugs. Resins specifically mentioned are polystyrene, polyethylene and polypropylene, foaming agents mentioned are butane, pentane, hexane, trichlorofluoromethane and dichlorodifluoromethane and the gaseous nucleating agents specified are carbon dioxide, nitrogen, air, methane, ethylene and acetylene. In the embodiment of extruder described, at least two co-rotating intermeshing screws 14 are provided which define within barrel 10 a melt zone A, an injection zone C with one or more injectors 32 for the nucleating agent, an injection zone E with one or more injectors 34 for the foaming agent, and a metering zone G having externally a jacket 22 for cooling water and a coil 24 which is the evaporator of a refrigerating system, and which is cooled internally by fluid flow within the screws. Further zones B, D and F are sealing zones, zone B being formed by smooth cylindrical portions 40 on the screw shafts, and zones D and F by reverse flight portions 42 and 44 which are preferably interrupted. Zones E and F may be duplicated or triplicated. Generally, in zones A, C, E and G, the screws may have constant or variable diameter cores and flights of constant of gradually decreasing pitch. The screw axes may be parallel or otherwise. Heaters 16, 18 and 20 are provided.
Patent GB-1231677-A (GB)
IPC: F23G5/24
Filed: 1969-09-18
Abstract: 1,231,677. Incinerators. MUSTADS FABRIKKER A/S. 18 Sept., 1969 [19 Sept., 1968], No. 46094/69. Heading F4W. In an incinerator having an adjustable heat supply provided by elements or burners (not shown) located in recesses in the refractory lining 3, a removable sheet metal inner lining 2, tapering downwardly, is supported over substantially its whole area by the refractory lining, and extends over at least the region in which the heat supplying elements are located. Air supply passages 4, leading to distribution chambers 5, supply air through shielded slots 6 in the lining 3. A double-walled sheet metal upper part 20, 21 has a flue outlet 22 in the outer jacket, and air may be supplied to the space between the walls.
Patent GB-1231725-A (GB)
Inventor: AMIARD YVES
IPC: C08F210/00
Filed: 1969-09-30
Abstract: 1,231,725. Copolymers of N-unsaturated carbazole derivatives. SOC. NATIONALE DES PETROLES D'AQUITAINE. 30 Sept., 1969 [2 Oct., 1968], No. 48024/69. Heading C3P. Linear amorphous copolymers of olefins and carbazole derivatives are prepared by contacting a mixture of at least two olefins of the formula RCH=CH 2  wherein R is a C 1-8  alkyl with a carbazole compound having an unsaturated hydrocarbon substituent attached to its nitrogen atom, the amount of said carbazole derivative being such that the final copolymer contains 0À1 to 20% by weight of carbazole units, in an inert oxygen-free solvent, and maintaining the mixture at - 50 to + 90 C. in contact with a catalyst system comprising at least one organometal derivative or hydride of a metal of Groups I to III and at least one derivative of a  transition metal of Groups IV to VIII. In the  examples: (a) copolymers of ethylene/propylene/  N-vinylcarbazole are prepared using (Et) 2 AlCl and VCl 4 , VOCl 3  and aluminium sesquichloride  VCl 4  and (n-C 6 H 13 ) 3 Al; (b) a copolymer of N-  allyl carbazole/ethylene/propylene is prepared using (Et) 2 AlCl and VCl 4 ; and (c) copolymers of ethylene/propylene/N-vinyl- or N-allylcarbazole are prepared using VOCl 3  and (Et) 2 AlCl. A linear amorphous copolymer comprising less than 75% by weight of ethylene, 5-75% by weight of a C 3-10  alpha olefin, and 0À1-20% by weight of an N-(C 2-16 -alkenyl). Carbazole is claimed per se. The copolymers of the invention may be vulcanized by heating a mixture of the polymer with carbon black, zinc oxide, sulphur and dicumyl peroxide.
Patent GB-1238028-A (GB)
IPC: B60T8/40
Filed: 1967-10-10
Abstract: 1,238,028. Fluid-pressure brakes. SIMMS GROUP RESEARCH & DEVELOPMENT Ltd. 3 Oct., 1968 [10 Oct., 1967], No. 46183/67. Addition to 1,170,232. Heading F2F. In a braking apparatus for operating a vehicle wheel brake 5a, a power operated pump 3 is driven in dependence upon the speed of rotation of the vehicle wheel 5 and is raranged to pump fluid via a fluid circuit 4, 10 and 11 to operate a piston and cylinder device 9 to operate the brakes, a pedal-actuated master cylinder 17 is adapted to operate the brakes independently via a bore 15 in a piston 13 operating in a cylinder 12 of a pressure control valve device and conduit 20. Whenever the pressure in the master cylinder system exceeds a certain pressure the piston 13 of the pressure control valve device is depressed against a spring 19 so that a tapered valve member 16 projecting from the bottom of the piston 13 is moved into an orifice 24 to close off the return connection 21 of the pump 3 to a reservoir 1 and allow the pressure to build up at the bottom of the cylinder 9 dependent upon the size of a restriction 6 and the speed of the pump 3. Since the pump 3 is driven by the vehicle wheel 5 the pressure will depend on the speed of rotation of the wheel 5. Should the wheel lock the pump 3 will stop and pressure operating the brake 5a will drop to allow the wheel 5 to rotate again. A pressure release valve 7 and an hydraulic accumulator device 8 is provided in the pump circuit.
Patent GB-1250768-A (GB)
IPC: B29C33/38
Filed: 1968-11-08
Abstract: 1,250,768. Moulding expanded thermoplastics articles. MONSATOR HAUSHALTGROSSGERATE KOMBINAT VEB. 8 Nov., 1968, No. 47548/68. Heading B5A. Components of expanded thermoplastics material are made by charging a mould cavity with thermoplastic material containing blowing agent, closing the mould to render the cavity pressure-tight and introducing a heating medium to the cavity from at least one side of the mould through nozzles, the heating medium being introduced through different nozzles at different rates of flow. The nozzles may extend into the mould cavity and the nozzles are connected in groups to a set of inlets through which the heating medium, e.g. steam, is supplied at different rates. Some of the nozzles may function initially as exhausts to remove air, these nozzles being closed and the pressure in the mould allowed to increase during the forming. The mould may be cooled and may be lined with a low thermal conductivity material, e.g. a plastics or elastomeric material or with a layer of a good conductor spaced from the mould wall by insulating bridges. As shown, the mould comprises a moulding box 2 and a cover 4, strengthened by ribs 3. An insert 5 is introduced into the mould, unexpanded material is placed in the mould and the mould is closed. Three nozzle systems pass through the cover 4 and are connected respectively to feeds 6, 7 and 8. Heating medium is supplied to the mould through feeds 7 and 8 and feed 6 is initially open to the atmosphere to permit expulsion of air and heating medium condensate. The nozzles 6 are then closed and the heating medium introduced through passages 7 and 8 at rates which heat and expand the plastics material uniformly. The steam supply is then stopped, the mould cooled conventionally and the moulding removed.
Patent GB-1250860-A (GB)
IPC: F16G13/07
Filed: 1970-09-29
Abstract: 1,250,860. Chains. MANUFACTURE DE MACHINES DU HAUT RHIN, and CENTRE D'ETUDES ET D'APPLICATIONS DE TECHNIQUES DE PRODUCTION. 29 Sept., 1970 [1 Oct., 1969], No. 46320/70. Heading F2Q. In a chain comprising parallel link cheeks 1 interconnected by transverse pivot pins 2, each link cheek 1 consists of a single plate having a first portion 7, in which an aperture 5 is located, and an extension 9 located in one plane, and a second portion 8, containing an aperture 6, located in a plane which is offset laterally by a distance equal to the thickness of the plate. The extension 9 has end-faces 11, 12 which are adapted to abut corresponding faces on adjacent link cheeks when the chain extends in a straight line.
Patent GB-1251190-A (GB)
IPC: D04B35/08
Filed: 1968-01-23
Abstract: 1,251,190. Knitting-machines. COURTAULDS Ltd. 22 Jan., 1969 [23 Jan., 1968], No. 3399/68. Heading D1C. To prevent loop formation in certain wales of fabric knitted on a full-fashioned machine a cap 8 or clip fitted over the needle prevents yarn entering the beard. The preferred cap includes a tail 9 in front of the beard. The cap may be cut away at 11. Alternatively a U-shaped clip may be fitted laterally over the beard, or a tube fitted over the needle. The caps are applied and removed by a modified fashioning box.
Patent GB-1252316-A (GB)
IPC: H01J9/26
Filed: 1969-06-06
Abstract: 1,252,316. Sealing discharge tubes; cathode ray tubes. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 6 June, 1969 [7 June, 1968], No. 28683/69. Heading H1D. In a method of hermetically sealing the envelope portions 1a and 1b of an electron tube, e.g. an image storage tube, an image intensifier tube or a secondary electron multiplier, having an evaporated alkali-halide layer 4 formed on the inner surface of a back plate 3 of one of the envelope portions, the alkali-halide layer 4 is heated to at least 50‹ C. at the same time as the envelope portions 1a and 1b are heated to effect the seal. As shown, the alkali-halide layer 4 is heated by an element 18 in a holder 19 which is secured to the envelope surrounding the layer 4 to transfer heat to it. The holder 19 and envelope portions are rotated relative to gas burner 17 in the course of sealing the gap 16 between the two sections la and 1b. The alkali-halide layer is preferably heated to between 100-400‹ C. which prevents it from absorbing moisture during sealing.
Patent GB-1256691-A (GB)
IPC: B65G21/20
Filed: 1967-12-07
Abstract: 1,256,691. Endless conveyers. C. W. WARD. 9 Dec., 1968 [7 Dec., 1967; 3 July, 1968], Nos. 55782/67 and 31803/68. Heading B8A. [Also in Division F2] In a trough belt conveyer, side walls to prevent the spillage of the conveyed material comprise a metal plate 10 and a flexible rubber skirt 12 held in position by a clamping strip (13), Fig. 3 (not shown), carried by a series of spaced clamps 14 secured to the metal plate. The clamps 14 each comprise a handle (16) formed with a circular hub (18) eccentrically mounted for rotation on a spindle (20) to provide an overcentre snap action, and which bears against a spring strip (22) anchored at one end and secured to the clamping strip (13) at the other end. In an alternative embodiment, Fig. 5 (not shown), the circular hub (18) is eccentrically mounted on a pair of stub shafts (30) each releasably received in a recess (34) of a lug (32) when the clamp is in its operative position. On release of the clamp, the handle and the hub may be removed from the lugs and the spring strip (22) swung up between the lugs clear of the skirt.
Patent GB-1256721-A (GB)
IPC: F15B15/28
Filed: 1968-12-18
Abstract: 1,256,721. Measuring position. MAURER & CO. 18 Dec., 1968 [30 Dec., 1967], No.60211/68. Heading G4H. [Also in Division G1] The position of a piston 12 (Fig. 10) in a cylinder 11 is determined by a series of reed switches 91-93 mounted on the cylinder end wall 11a in a tube 71 extending into the piston, and selectively operated by an energized toroidal coil 70 in the end face of the piston. The switches are attached to threaded segments for axial adjustment inside the tube 71 when the latter is rotated by an external knob 72 rotation of the segments being prevented by struts 78. In another embodiment (Fig. 3) axial movement of the piston 12 produces angular rotation of a spindle 36 via captive nuts 40, the angular rotation being measured by a pulse generator 49 feeding a counter 50.
Patent GB-1258423-A (GB)
IPC: B42D5/02
Filed: 1969-01-06
Abstract: 1,258,423. Envelopes. LAMSON PARAGON Ltd. 2 Feb., 1970 [6 Jan., 1969], No. 799/69. Heading B6A. An envelope arrangement particularly for sending an account to a customer so that the customer can return a part thereof with his remittance comprises a base sheet 1 with a sheet 2 attached by adhesive along lines 10, 11 to form a pocket 9 extending up to line 12, the sheet 1 being perforated at 7 so as to be divisible into a part 1a containing the customer's address and details of the account for retention by the customer and a part comprising the pocket 9 to receive a cheque, and a closure flap 16 for the pocket. A line of adhesive 14 which may be covered by a removable strip 13 is provided to seal the parts 16, 9, and a line of perforations 12 may be provided to facilitate folding of the flap 16. A series of such envelope arrangements may be formed as a continuous web with removable perforated margins for passage through a computer or like machine for printing the necessary information. After the information has been inscribed, separation into separate accounts is effected along transverse perforation lines 3, each part 1a is folded over parts 16, 9 along line 7, and the form thus produced is sent to the customer preferably in a window envelope. The customer detaches and retains part la, inserts the cheque into the pocket 9 and seals the pocket for transmission to the sender. The web assembly may form the second web of a set of webs, and the webs may have carbon areas on the rear faces so that information on the top sheet is copied on to succeeding sheets.
Patent GB-1265383-A (GB)
IPC: C08K5/3415
Filed: 1969-03-05
Abstract: 1,265,383. Plasticized anionic copolylactams. E.I. DU PONT DE NEMOURS & CO. 5 March, 1969 [6 March, 1968], No. 11831/69. Heading C3R. Plasticized copolyamides are obtained by anionically copolymerizing, by weight of the total composition, 65 to 90% of coprolactam with at least 1% of one or more lactams containing 7 to 12 C atoms in the lactam ring in the presence of 2 to 20% of an N-alkyl pyrrolidone as plasticizer. The specified proportion of this plasticizer is stated to give outstanding resistance to damage by impact, rendering the copolymer particularly suitable for tenpin skittles. Polymerization may be effected directly in the mould using a conventional catalyst and accelerator and optionally a thickening agent, pigment filler, antioxidant, blowing agent or mould release agent, e.g. a soluble polyamide, a polycarbonate, alkali stearate, benzene, heptane, propane, TiO 2  or allylic azides and diazirines.
Patent GB-1266272-A (GB)
IPC: A44B19/12
Filed: 1970-04-06
Abstract: 1,266,272. Sliding clasp fasteners. OPTIHOLDING A.G. 6 April, 1970 [22 April, 1969], No. 16172/70. Heading E2S. A sliding clasp fastener comprises two rows of helically-wound interlocking elements 1, 2 formed from plastics monofilament of circular cross-section. On each indivdual turn an interlocking head 3 is formed which is of elliptical form and in the interlocked condition one row of elements is hinged to the other row about the interlocking heads 3, as shown. A sewn seam 4 attaches each row of 1, 2 to their respective stringer tapes 5, 6.
Patent GB-1295666-A (GB)
IPC: C08B15/04
Filed: 1969-06-17
Abstract: 1295666 Medicines comprising polysaccharide derivatives RECHERCHE ET INDUSTRIE THERAPEUTIQUES 19 May 1970 [17 June 1969] 30722/69 Heading A5B [Also in Division C3] An antiinfectious pharmaceutical composition comprises an oxidised polysaccharide having at least 50 % of the monosaccharide rings open, substantially all the open rings oxidised to the carboxylic acid state, substantially all the C-O-C linkages in the original polysaccharide remaining intact, and having a molecular weight of at least 5000. The polysaccharide may be starch, amylase, cellulose, alginic acid, dextran, guaran or amylopectin. The polysaccharide may be in solution or suspension form, or in tablet or capsule form. In examples the polysaccharide may be dissolved in phosphate-buffered saline, optionally with the addition of influenza vaccine, or placed in gelatin capsules with magnesium stearate and, optionally, lactose.
Patent GB-1297874-A (GB)
IPC: C30B29/62
Filed: 1970-01-22
Abstract: 1297874 Crystalline whiskers SUWA SEIKOSHA KK 22 Jan 1970 [24 Jan 1969] 3212/70 Heading C1A [Also in Division C7] A method of producing crystalline whiskers comprises non-uniformly dispersing a reducing catalyst in a reagent or composition from which the whiskers may be produced, and reducing said reagent or composition to produce the whiskers, the catalyst being present in an amount between 1 x 10<SP>-3</SP> and 5 atomic per cent. A reducing gas, e.g. H 2 , may be used in the reaction and the reduction may be promoted by heating the mixture to a temperature below the melting point or decomposition temperature of said whiskers. Exemplified materials of whiskers are tungsten, boron carbide, silicon carbide, and molybdenum. A non-uniform dispersion is defined as one in which the catalyst is mixed throughout the body of the reagent or composition, but not to an extent that the mixture becomes homogeneous.