baber/WOPTO huggingface dataset:
Patent GB-1391140-A (GB)
Title: Polymerization of 1,4-halo-substituted-2,3-epoxybutanes
IPC: C08G63/82
Filed: 1973-12-04
Abstract: 1391140 Polymerization of dihaloepoxides HERCULES Inc 4 Dec 1973 [10 Jan 1973 30 April 1973] 56057/73 Heading C3R 1,4 - Halosubstituted - 2,3 - epoxybutanes of the formula wherein X and X<SP>1</SP> denote halogen, R and R<SP>11</SP> denote hydrogen or halogen, and R<SP>1</SP> and R<SP>111</SP> denote hydrogen, halogen or an alkyl group, are polymerized alone or with other polymerizable compounds at temperatures of below 0 C. in the presence of a catalyst containing an aluminium trialkyl or an aluminium trialkyl that has been reacted with up to 1À5 mole of water per mole of aluminium, and also containing boron trifluoride, phosphorus pentafluoride, phosphorus oxyfluoride or antimony pentafluoride in a molar ratio to the aluminium trialkyl component of from 0À02 : 1 to 5 : 1. The polymerization is preferably carried out in the presence of a partially halogenated aliphatic or cycloaliphatic hydrocarbon diluent that is a nonsolvent for the polymer and a partial solvent for the epoxybutane. The polymerization mixture is also preferably agitated at a temperature below -30 C. until particles of crystalline polymer having a particle size less than 100 microns are dispersed in the diluent. Examples describe the preparation of poly- (trans-1,4-dichloro-2,3-epoxybutane), poly-(cis- 1,4-dichloro-2,3-epoxybutane), poly-(trans-1,4- difluoro - 2,3 - epoxybutane), poly-(trans - 1,4- chlorofluoro - 2,3 - epoxybutane), poly - (cis- 1,4 - chlorofluoro-2,3 - epoxybutane) and poly - (cis - 1,4 - difluoro - 2,3 - epoxybutane). The epoxybutanes may also be copolymerized with other polymerizable monomers such as alkylene oxides, cycloaliphatic oxides, arylalkylene oxides, alkenylalkylene oxides, alkyl glycidyl ethers, aryl glycidyl ethers, alkenyl glycidyl ethers, alkenyl aryl glycidyl ethers, epoxy alkynes, epoxy-1,3-dioxepanes, epoxytetrahydropyrans, glycidyl esters, alkyl glycidates, haloalkylene oxides, haloalkyl glycidyl ethers, haloaryl glycidyl ethers, haloalkylaryl glycidyl ethers, oxetanes, tetrahydrofurans, lactones, olefins, vinyl alkyl ethers, and 2- oxazolines. Uses.-As coatings for metals, &c. in flame resistant foams, films and fibres, for impregnation of paper or textile fabrics, as binders for non- woven materials, as adhesives and in polymer blends.
Patent GB-1463309-A (GB)
Title: Soil vent pipes
IPC: E04D1/30
Filed: 1973-12-04
Abstract: 1463309 Sealing roofs around pipe outlets WILLIAM J COX Ltd 20 Jan 1975 [4 Dec 1973] 56133/73 Heading E1W An assembly for fixing to the top of a soil vent pipe, to form a sealed joint with a tiled roof, comprises a tile element 1 with an aperture through which passes a pipe 6, sealed against the element 1 by a flexible sleeve 13 and carrying a lower flexible connector 16 for the vent pipe. The pipe 6 is preferably pivotally connected to thermoplastic trunnions 8 which are welded to the tile element 1, which is also of a thermoplastic material. The pivotal connection may be. by a bolt 11 passing into a lug 9, allowing the pipe 6 to be fastened tightly into a particular position after rotation. The part of the element I surrounding the aperture is flat (5) (Fig. 1, not shown).
Patent GB-1158838-A (GB)
Title: Interlocking Articles of Furniture
Inventor: DUFTON RONALD
IPC: A47C1/124
Filed: 1967-12-11
Abstract: 1,158,838. Securing chairs, tables &c. in rows. DARE-INGLIS PRODUCTS Ltd. 11 Dec., 1967, No. 56230/67. Heading A4U. Chairs, tables &c., having tubular steel legs 14, 15, 16, 17, symmetrically arranged at the corners, so that each back leg is spaced by the same distance from the respective front leg, are detachably linked in rows by engaging members 20, 21 bonded or welded to the legs at one side of each chair and projecting sideways from the chair to receive the legs of a neighbouring chair by relative vertical movement. The engaging member is formed of metal rod bent to U-shape, the limbs of the U being secured to the chair leg and the web bent away from the other engaging member of the pair. In a modification, the engaging members are secured to the outer surfaces of the legs and the webs extend towards each other.
Patent GB-1338087-A (GB)
Title: Electrically insulating sheet material
IPC: H01B7/02
Filed: 1970-11-27
Abstract: 1338087 Insulating fabrics; paper; bonded fibre fabrics FUJIKURA CABLE WORKS Ltd 27 Nov 1970 [29 Nov 1969 30 Dec 1969 6 Feb 1970 20 April 1970 6 May 1970 10 June 1970 15 June 1970 and 19 Aug 1970 (2)] 56503/70 Headings D1P D1R D2A and D2B [Also in Division H1] An electrically insulating sheet material comprises a fibrous substrate impregnated with a porous polymeric matrix, the pores of which are filled with an insulating fluid. The electrically insulating sheet material is made by impregnating a fibrous sheet or web with a solution of an organic polymer, the polymer being present in an amount of from 5-70% by wt. of the sheet or web, precipitating the polymer from the solution throughout the sheet or web, calendering the polymer-impregnated sheet or web such that it has a porosity of 10-70% and filling the pores with an insulating fluid. The fibrous substrate may be a woven or non-woven fabric. The latter may be a carded-, air- or wet-laid web. The fibrous material may be natural or synthetic. The polymer may contain mica or barium titanate to improve dielectric strength. Many examples of suitable fibrous and polymeric materials are given. Conventional impregnation and precipitation techniques may be used. The polymerimpregnated web may be hot calendered wet or dry. Calender rolls covered with an elastic material (Figs. 5, 6, 9, 10 not shown) may be used to produce the desired porosity in the calendered sheet. The electrical insulating fluid may be an oil, e.g a mineral oil, alkylbenzene oil, polysiloxane oil; a liquefied gas, e.g. liquid nitrogen; an insulating gas, e.g. SF 6 , or a varnish comprising a synthetic resin such as an unsaturated polyester, epoxy, alkyd, silicone, polyimide, or polybenzimidazole resin with or without asphalt.
Patent GB-1284878-A (GB)
Title: Improved artificial leg
Inventor: SHORTER JOHN JEFFERY
IPC: F15B15/14
Filed: 1968-12-02
Abstract: 1284878 Artificial legs CHAS A BLATCHFORD & SONS Ltd 1 Dec 1969 [2 Dec 1968] 57061/68 Heading A5R An artificial leg having upper and lower members hinged together includes a fluid operated control device (3) which comprises a closed cylinder of adjustable length including a piston having an attached rod extending through one end of the cylinder such that the rod is connected to the upper member of the artificial leg and the cylinder to the lower member. The piston and cylinder comprises a closed system such that when the piston moves upwards fluid is expelled through an enlargement 7A into a passage 7C which communicates with air tubes 8 and 9 running outside the cylinder from an upper housing 4A to a lower housing 4B. At their lower ends passages 8 and 9 communicate with a bore 10A having a further air passage 10 communicating with the interior of the cylinder. Passages 8 and 9 contain adjustable needle valves at their upper ends to control fluid flow therethrough. Bore 10A contains a non return valve which permits fluid flow in one direction only from passage 9 to passage 10 while allowing fluid flow in both directions between passages 8 and 10. By varying these valves the "swing phase" of the artificial leg can be controlled. The cylinder includes an axially movable plug 5 screwed into upper housing 4A to vary the length of the cylinder.
Patent GB-1338510-A (GB)
Title: Process for the manufacture of coloured shaped articles of high polymer synthetic resins
IPC: C08L33/00
Filed: 1970-12-02
Abstract: 1338510 Colouring polymers CIBA-GEIGY AG 2 Dec 1970 [3 Dec 1969 8 Jan 1970 30 Jan 1970] 57261/70 Headings C3R and C3P Coloured shaped articles are made by (1) treating solid water-insoluble hydrophobic high polymer synthetic resins, in a 2-phase mixture of solvents (S) being hydrophilic (S H ) and organophilic (S o ) solvents, with colourants or optical brighteners (C) which are more soluble or dispersible in (S o ) than in (S H ); (2) removing (S); and (3) shaping the treated resin from the melt or from a solvent. At ambient temperature the solubility of (S O ) in (S H ) is, by wt., 0À1- 10%; and the solubility of (S H ) in (S O ) is 0À1-20%. In step (1) the resin may be in granules or powder form, and may be mixed with (C) dissolved in (S O ), and with sufficient water as (S H ) to form the predominant phase, until the organic phase has become uniformly dispersed on the surface of the resin. Untreated synthetic resin may be added to the dried treated resin before shaping. The resin may be polyamide, polyester, polyolefin, polyacrylonitrile, polyacetal, polycarbonate, polysulphone, or ionomer resin. A long list of solvents (S O ) is given. The resin may be treated with 0À1-60% (C). Colourant (C) may be, e.g. a disperse dyestuff, metal complex dyestuff, vat dyestuff, anionic dyestuff, pigment, or dyestuff lacquer. Long lists are given. (C) may be used in the form of a pigment preparation, distributed in a solid carrier, e.g. magnesium abietate, ethyl cellulose, colophony ester, or vinyl chloride/ vinyl acetate copolymer. The articles may be fibres, filaments, or sheets.
Patent GB-1480348-A (GB)
Title: Headlamp washer arrangement
IPC: B60S1/60
Filed: 1974-10-29
Abstract: 1480348 Cleaning vehicle headlamp lenses LUCAS ELECTRICAL Ltd 29 Oct 1974 [11 Dec 1973] 57309/73 Heading A4F A headlamp washing device comprises a discharge nozzle 11 for washing liquid carried on an arm 10 mountable on a motor vehicle so as to be movable between an inoperative position, Fig. 1, and an operative position, Fig. 2, in which the nozzle 11 is directed towards a headlamp H, movement of the arm 10 from the inoperative to the operative position opening a valve, e.g., a fixed pin 12 having a through-bore 15, about which the arm 10 is pivotable to align a passage 13 in the arm 10 with the bore 15 in the pin 12, means, e.g. a bellows 16 expanded by the pressure of supplied washing liquid, being provided for moving the arm 10 from the inoperative to the operative position. A spring 22 returns the arm 10 to its inoperative position. In an alternative embodiment the arm (110), Fig. 3 (not shown), is tilted by a piston and cylinder device, the piston (114) serving as a valve to controlling the washing liquid supply. The liquid passes from the cylinder (116) to the end of the arm via an external flexible pipe (118).
Patent GB-1462852-A (GB)
Title: Saw guide devices
IPC: B23D51/02
Filed: 1972-12-12
Abstract: 1462852 Saw guide G W WYNN 12 March 1974 [12 Dec 1972] 57314/72 Heading B5L A saw guide device comprises means defining a guide plane for a saw blade, a magnetic element 6 supported in a mounting to be displaceable towards and away from the guide plane and able to project through the plane and resilient means urging the element away from the plane. As described the guide plane is defined by one face of a support member 2, or by a wearresistant facing layer 4 thereon. The magnetic element 6, or 6b is slidable in a bearing sleeve 10 or 10a, and has a head 8 or 8b, which may have a low friction cap or coating for engaging the saw blade. The resilient means may be a spring 16, a rubbery collar 24, or a spring washer or spider. The sleeve 10 may be adjustable as in Fig. 3, and its protruding end 28, which may act as a saw guide bearing face, and/or the magnetic element may be domed or chamfered. The head 8 may be angularly adjustable relative to the rest of the member 6. The magnetic element may be a permanent magnet or an electromagnet, e.g. the core of a solenoid. It may be adjustable linearly, as shown, or angularly. The device may include two or more magnetic elements.
Patent GB-1359798-A (GB)
Title: Process of dressing sewing threads to reduce their friction
IPC: C08G81/00
Filed: 1972-12-15
Abstract: 1359798 Coated threads BAYER AG 15 Dec 1972 [16 Dec 1971] 57978/72 Heading B2E [Also in division D1] Sewing thread is dressed by treating with a solution or emulsion of (a) a polycarbonatepolydimethyl siloxane block copolymer consisting of from 8-35% by weight of polycarbonate segments of the general formula in which R' represents a hydrogen atom or a monovalent aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon radical which may be substituted with an inert substituent, R" is a substituent independent of the others and consists of an alkyl radical or a halogen atom, p is an integer of from 1 to 7 and a is 0 or an integer from 1 to 4 and 55-92% by weight of polydimethyl siloxane segments having an average chain length of 15-90 dimethyl siloxane units, individual segments being linked by aryl-O-Si bonds, and optionally, (b) polydiorganosiloxanes. Numerous suitable block copolymers are listed. The polydiorganosiloxanes are preferably present in amount 100 parts by weight per 5-50 parts of the block copolymer. Suitable solvents are trichloroethylene, perchloroethylene, methyl chloroform, chlorobenzene or mixtures of these. When applied as an emulsion the component(s) are dissolved in a non-polar solvent such as toluene, xylene, or petroleum hydrocarbons, optionally mixed with trichloroethylene or perchloroethylene and the solutions emulsified in water with the addition the usual stabilizing agents, preferably a commercial partly hydrolised polyvinyl acetate. The threads are preferably of polyester fibres, e.g. polyethylene terephthalate, but blends of polyester fibres with other natural and/or synthetic fibres may also be used. Polyester-free yarns such as nylon and acrylics may also be treated by the method.
Patent GB-1224068-A (GB)
Title: Street cleaning vehicle
IPC: A47L9/20
Filed: 1968-12-12
Abstract: 1,224,068. Road-sweeping machine. WAYNE MFG. CO. 12 Dec., 1968 [10 Sept., 1968], No. 59269/68. Heading E1G. [Also in Divisions B1 and B2] A road-sweeping machine (Fig. 1 not shown) has a dust-collecting chamber (11) into which dirt is swept by rotary brush (10) and from whose top air is withdrawn, the air flowing inwards through filter bags which are mounted in cantilever fashion on their common outlet manifold 13 so that their opposite, closed, ends may be shaken by fingers 35 extending from reciprocating bar 25, to remove dust from their exteriors. Each bag comprises a resilient,'central metal sheet (16) with corrugated porous fabric sheets (17) on both sides and sealed thereto along three edges. Each group of three bags is clamped by rods 22 between a front plate 21, through which the bag interiors open into manifold 13 (Fig. 6, not shown), and a rear plate 19. Fingers 35 engage between the edges of plates 19. The bar 25 is reciprocated axially by a hydraulic motor (27) rotating an eccentric weight 28, the motor and weight being enclosed by a dustproof housing 30 mounted on the bar 25. The bar may be reciprocated at the resonant frequency of the bags, defined by sheets (16). (For Figure see next column)
Patent GB-1291568-A (GB)
Title: Contoured fabric
Inventor: BONSER ARTHUR
IPC: D04H13/00
Filed: 1968-12-17
Abstract: 1291568 Laminates COURTAULDS Ltd 16 Dec 1969 [17 Dec 1968] 59832/68 Heading B5N [Also in Division D1] A woven or knitted fabric, having areas of float yarns adjacent areas of non-float yarns or areas of differently aligned floats, is stitchbonded to a flexible substrate. The areas are thus thrown into relief with respect to each other. The stitching comprises parallel lines of chain stitches. The substrate may comprise a fibrous web or fleece, an opened filamentary tow, elastomeric foamed material, or multiple layers of fibrillated polymeric film.
Patent GB-1496489-A (GB)
Title: Structural assembly of panel members such as flooring planks
IPC: F16B5/07
Filed: 1974-12-24
Abstract: 1496489 Structural joints ALCOA MFG (GB) Ltd 24 Dec 1974 [28 Dec 1973] 59951/73 Heading F2M [Also in Division B7] In a structure formed by panels, e.g. flooring planks 1, 2 of a vehicle body, each panel has complementary formations along its opposite side edges, one of which (shown for the plank 1) consists of a portion 6 defining a recess 7 for receiving a resilient sealing cord 8, the portion 6 being extended by a portion 9 for resting on an underlying support and further extended by an inclined portion 10, while the other formation (shown for the plank 2) consists of flanges 12, 13, the former flange acting to compress the sealing cord 8 as a result of engagement of the latter flange with the inclined portion 10, when the planks 1, 2 are assembled by mutually pivoting them into the aligned position shown, this assembly action also resulting in a tight abutment of a tongue 4 on the plank 1 with the adjacent edge of the plank 2.
Patent GB-1326150-A (GB)
Title: Switching device
IPC: H01H15/16
Filed: 1971-12-29
Abstract: 1326150 Mechanical switches TOKAI RIKA DENKI SEISAKUSHO KK 29 Dec 1971 [28 Dec 1970] 60481/71 Heading H1N In an electric switch a tiltable contact plate 7, Fig. 1, is resiliently pressed towards three fixed contacts a, b, c in a triangular formation, by an actuator 16 which is movable from a neutral position (shown) at which all three fixed contacts are engaged to positions outside the hinge axes x, x<SP>1</SP> between the contacts whereby the plate 7 is selectively disengaged from contact b or c. The actuator 16 may comprise a spring- loaded plunger arranged in a manually slidable operating member 12, Fig. 3. The slider 12 may also carry a second spring-urged plunger 19, Fig. 5, engageable with a double-armed rocking contact 11, supported on a channel member d providing two over-centre pivots whereby the contact 11 may be snapped from a neutral position shown to close selected contact sets e, g, or f, h.
Patent GB-1314440-A (GB)
Title: Yarn handling apparatus
IPC: B65H54/02
Filed: 1970-12-21
Abstract: 1314440 Pressing CELANESE CORP 21 Dec 1970 [30 Dec 1969] 60503/70 Heading D1J A plurality of yarns are laid by a traversing guide 24 on a drive roller 10, and wound on at least two bobbins 56, 58 in contact with the roller, so that the bobbins are displaced as the packages grow, and a predetermined pressing force relationship is maintained between each package and the drive roll. The bobbins are mounted on carriages 60, 62 slidable along bars 64, and carrying cams 68, 70 which are pressed by spring biassed levers 74 to effect the pressure control. The carriages may be manually disengaged from the drive roll to assist donning and doffing. A preferred pressure relationship using a 4-inch diameter package former commences at 7 lb. and is increased to 8 lb. after 1¢" of yarn is wound, then decreased to 3¢ lb. after a further 2", and finally decreased to 2¢ lb when the final 12" diameter is reached.
Patent GB-1215620-A (GB)
Title: Optical deconvolution of seismi records
IPC: G02B27/46
Filed: 1968-12-20
Abstract: 1,215,620. Spatial Filtering. PAN AMERICAN PETROLEUM CORP. Dec.20, 1968 [Dec.27, 1967], No.60818/68. Heading G2J. [Also in Division C4 and H4] Unwanted time dimension in formation is  processed out of seismic data by superimposing a Fouvier transform of the time dimension of data from a transparency and containing as a varying intensity of illumination the frequency spectrum of each trace of the data on an image of the respective trace position in the transparency, these being located in the transform plane a transparent film that progressively acquires density by being exposed to illumination in said transform and acts as a filter, while passing illumination to form a modified image. The image is produced a plurality of times for different densities until the desired modified image is achieved. A monochromatic light beam 11 illumates a transparency 15 of side-by-side  variable density seismic wave traces. The transmitted and diffracted light passes a cylindrical lens, with its cylindrical axis parallel to the  said time dimensions, which lens forms a transform at 17a of the distance dimensions only. A lens 18 forms the fourier tranform of the time dimension at 20a superimposed upon the film 20. Lenses 22, 24, 26 set up a modified image 28. The film 20 is one in which greater intensities of illumination produce greater densities. Preferably the film is exposed and developed and them reexposed and developed until the required density is achieved. Alternatively the film, which may be a photographic film, may be immersed in a bath of developer and continuously exposed and developed. In a suitable embodiment the transparent film comprises a cell formed from optically flat plates containing for example a photochromic material such as spiropyraus dissolved in an  alcohol or liquid hydrocarbon solvent, or an electrolyte, the insides of the glasses plates having a transparent conducting film such as cadmium sulphate selenide. In order that at least part of the illumination representing zero frequency in the frequency spectrum in transform plane 20a is transmitted a vertical glass fibre is vertically located along the D.C. line of the cell, or a wire is located along that line on the mounting plate.
Patent GB-1283612-A (GB)
Title: Improvements in and relating to tape recorders
IPC: G09B5/04
Filed: 1969-12-18
Abstract: 1283612 Magnetic tape recording and playback BLAUPUNKT-WERKE GmbH 18 Dec 1969 [19 Dec 1968] 61675/69 Heading G5R In a teaching machine in which a teacher's track is read by replay heads 10, 11 and a student's voice is recorded by head 12 and replayed by head 13, the output from head 11 is also fed to head 12 so that the student can hear from loud-speaker 15, the teacher's recording after his own has been played back. The output from head 11 may also be fed to amplifier 14 so that the recording on the teacher's track is also played back again before the student's recording is heard. In order to give a variable time delay for the tape between heads 10, 12 and 11, 13, it passes round a pulley (8) on an extensible strip (9) Fig. 1 (not shown).
Patent GB-1286500-A (GB)
Title: Electrostatic analysers
Inventor: NALBANTOGLU MITHAT
IPC: H01J49/28
Filed: 1969-12-19
Abstract: 1286500 Mass spectrometer PRODUITS CHIMIQUES PECHINEY.SAINT.G,OBAIN 19 Dec 1969 [20 Dec 1968] 61946/69 Heading HID An electrostatic analyser for a mass spectre - meter comprises a metal base-plate 1 with insulated apertures for leads, and on which polepieces 3 and 7 defining a curved ion passage are mounted by support members 8 and 4 and insulating members 9 and bolts 10, such that the base-plate is normal to the median radius of the passage. A casing 12, forming an integral part of the mass spectrometer, is secured to enclose the base-plate. The base-plate and polepieces are removable as a whole from the spectrometer solely by detaching the base-plate from the casing. Polepiece 3 is spaced from base-plate 1 by block 5 and is positioned by members 6 which extend into both polepiece and base-plate.