baber/WOPTO huggingface dataset:
Patent GB-1045155-A (GB)
Title: Improvements relating to vehicle braking systems
Inventor: HAMBLING STEWART KEVERN
IPC: B60T8/26
Filed: 1963-09-05
Abstract: 1,045,155. Hydraulic brakes. GIRLING Ltd. July 13, 1964 [Sept. 5, 1963], No. 35063/63. Heading F2F. In an hydraulic braking system for vehicles, a differential piston/cylinder assembly 22 located between a source of pressure, such as a master cylinder, and the slave cylinder and cylinders of a brake or brakes is by-passed by a normally open, solenoid-operated valve 11 which is controlled by an inertia sensitive switch such that said switch operates at a predetermined vehicle deceleration to close said by-pass valve. The switch 14 comprises a U-tube, which is positioned in the longitudinal plane of the vehicle, and contains an electrically-conductive liquid such as mercury, and two electric contacts 16 and 17, the former being immersed in the liquid and the latter being disposed in the forward U-tube limb above the liquid level. On excessive vehicle deceleration, the liquid surges forward to close said contacts and energize the valve solenoid which subsequently closes said valve. Alternatively, two electric contacts 16 and 19 may be immersed in the liquid to complete the circuit of a normally energized solenoid holding the valve open against a spring or gravity, said circuit being broken on excessive deceleration by the forward surging of the liquid. On closure of the by-pass valve, any increase in master cylinder pressure is transmitted to the rear brakes in a reduced proportion by the differential piston/ cylinder assembly. The angular position of the U-tube may be either fixed or varied automatically with axle load.
Patent GB-1059316-A (GB)
Title: Improvements relating to tuned apertures for microwave transmission systems
Inventor: DOBSON STANLEY
IPC: G01S7/03
Filed: 1963-09-05
Abstract: 1,059,316. Resonant waveguide irises. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 6, 1964 [Sept. 5, 1963], No. 35166/63. Heading H1W. A tuned waveguide iris comprises a plate having an elongated aperture and a dielectric rod or rods arranged on and movable along the axis of the aperture. The rods may extend from either end of the aperture and be movable in synchronism. They may be guided within dielectric tubes arranged within the apertures. The iris (Fig. 4. not shown) comprises four apertures (14, 15, 16, 17) which are tuned by pairs of dielectric rods (9, 9) movable within dielectric tubes (8). The tubes may form parts of gas-discharge switches for use in a duplexing device. In such a device, the apertures (14, 15) lie across a first waveguide and the apertures (16, 17) across a second waveguide parallel to the first one and coupled to it by a pair of 3 db. directional lying one on either side of the iris (13). Double-walled tubes containing ionizable gas may be used.
Patent GB-353057-A (GB)
Abstract: 353,057. Vaporizing perfumes &c. RAYNER, H. J., 9, Pyrland Road, Highbury, London. April 15, 1930, Nos. 11949/30 and 1259/31. [Class 81 (i).] An attachment for electric lamp bulbs whereby perfumes or deodorants may be vaporized without materially obscuring the lamp, comprises an expansible collar comprising a wick for the liquid to be vaporized and adapted to be pushed over the bulb at its greatest diameter and to be retained at an intermediate part of the bulb. In the form shown in Fig. 1, the absorbent 2, such as cottonwool or cylindrical wick, is enclosed in a coiled wire collar, or cage 1, the ends of which are joined by a V-section ring 9 or by a clip. The ends of the wick may be fitted with metal caps 6 to prevent fraying. In modifications the wire cage is dispensed with and the ends of the wick are connected by a, short coiled spring or by a strip of elastic, or, as shown in Fig. 2, the wick is provided with a curved steel wire core 7. When used with a standard lamp the collar is connected by ligatures 12 to a small ring or disc 13, Fig. 5, to prevent it from slipping too far down and to hold it in contact with the bulb. The absorbent may be charged with liquid before it is placed on the lamp bulb, or may be supplied ready charged in an airtight box.
Patent GB-762592-A (GB)
Title: Improvements in or relating to compositions of solid polymers of ethylene
Inventor: OAKES WILLIAM GEORGE
IPC: C08L23/06
Filed: 1953-12-21
Abstract: A composition having improved extrusion properties comprises two or more polyethylenes of widely differing grade numbers, the ratio of the highest to the lowest being 100,000 to 1.  The grade number is related to the viscosity and molecular weight, and molecular weights as low as 4,000 and up to 100,000 are mentioned.  The mixture may be prepared by hot milling the components or by joint evaporation of solutions, by controlling polymerization so that two or more grades are produced simultaneously in different zones of the same reaction vessel or in separate reaction vessels which are interconnected in series, so that polyethylene and unreacted ethylene passes from one zone or vessel to the next, the polyethylene formed in one vessel blending with that formed in the next to give a homogenous mixture, or by separate reaction vessels feeding into a common receiver in which the polythene remains dissolved or dispersed in the ethylene. Specification 471,590 is referred to.
Patent GB-736289-A (GB)
Title: Improvements relating to transistor amplifiers
IPC: H03F3/343
Filed: 1953-12-21
Abstract: 736,289. Transistors. GENERAL ELECTRIC CO. Dec. 21, 1953 [Dec. 19, 1952], No. 35522/53. Class 37. [Also in Group XL (c)] In a cascaded transistor amplifier (see Group XL (c)), a multiple transistor is employed comprising a PNP and a NPN germanium transistor in a single block, Fig. 4. The colector 55 of the PNP transistor is formed with a projection which acts as the base of a second transistor of the NPN type, a block of insulation 40 being added to increase the mechanical strength. Specification 728,129 is referred to.
Patent GB-343564-A (GB)
Title: Improvements in and relating to paper cutters
IPC: B65H35/00
Filed: 1929-11-21
Abstract: 343,564. Severing by tearing. IRONS, C. H., 29, Brodie Road, Chingford, and HOLMAN & WILLIAMS, Ltd., 23, Budge Row, both in London. Nov. 21, 1929, No. 35634. [Class 31 (i).] In apparatus which may be secured in a vertical or horizontal position, side e brackets 12 secured to a base 17 carry shaped bores in which corresponding shaped bosses 20 of cutter arms 18 are secured by bolts 23. The bolt shanks are extended to form journals for the roll holding wedges 26. The blade 31 is detachably suspended on projections 21 of the arms 18.
Patent GB-1174328-A (GB)
Title: Production of Coated Film.
Inventor: REMMINGTON TIMOTHY ALAN
IPC: C08J7/052
Filed: 1967-08-03
Abstract: 1,174,328. Coated films. IMPERIAL CHEMICAL INDUSTRIES Ltd. 23 July, 1968 [3 Aug., 1967], No. 35763/67. Heading B2E. [Also in Division C3] Heat-sealable film comprises a base film of an organic thermoplastic polymeric material which has been subjected to a surface oxidation treatment to improve the bonding properties of its surface, coated with a heat-sealable coating material, and an intermediate layer of a resin comprising an interpolymer of the product obtained by condensing acrylamide or methacrylamide with a monoaldehyde in the presence of an alkanol containing from one to six carbon atoms with at least one other unsaturated monomer. The heat-sealable film is produced by subjecting the film to a surface oxidation treatment to improve the bonding properties of its surface and then coating that surface with a resin comprising a composition obtained by condensing a monoaldehyde with acrylamide or methacrylamide in the presence of an alkanol containing from one to six carbon atoms so that at least some of the amino hydrogens are replaced by -ROR' groups, the R and R' groups being alkylene and alkyl groups respectively and subsequently interpolymerising the condensation product with at least one other unsaturated monomer and then overcoating the coated surface or surfaces with a heat-seal coating and heating to set the resin so that it becomes adhesively bonded to the heat-seal coating and the base film. Examples of aldehyde and unsaturated monomer are given. The coating composition may contain up to 50% by weight of the solids content of the resin of an epoxy resin, or a melamine-formaldehyde resin. The copolymer may contain up to 90% of styrene, up to 80% of an alkyl acrylate, up to 15% of methacrylic acid and 5% to 25% of acrylamide which has been condensed with a solution of formaldehyde in n-butanol containing from 0.2 to 3 equivalents of formaldehyde for each amide group. The thermoplastic polymeric material may comprise a polymer or copolymer of an α-olefine e.g. ethylene, propylene, butene, 4-methyl pentene-1; linear polyesters e.g. polyethylene terephthalate and polyethylene-1:2-diphenoxy-ethane-4:4'-dicarboxylate; and polymers and copolymers containing vinyl chloride. The films may be unoriented or oriented in one or both directions in the plane of the film, and the oriented film may be heat set before or after coating. The heatseal coating may comprise copolymers of vinylidene chloride e.g. with acrylonitrile or vinyl chloride, which may contain other monomers e.g. acrylic or methacrylic acid, or itaconic acid; polyvinyl acetate which may be partially hydrolysed; copolymers of butadiene with styrene, acrylonitrile, methyl methacrylate, or methyl methacrylate and styrene; methyl methacrylate-methacrylic acid copolymers; copolyesters of terephthalic acid and another dicarboxylic acid e.g. sebacic acid, with a glycol; copolymers of vinyl acetate with vinyl chloride, or ethylene, or copolymers of vinyl chloride and ethylene.
Patent GB-885445-A (GB)
Title: Improvements relating to fluid pressure regulators
IPC: G05D16/16
Filed: 1957-11-18
Abstract: 885,445. Fluid-pressure servomotor control systems; valves. HUGHES, R. M. (Taplin, J. F.). April 18, 1958 [Nov. 18, 1957], No. 35830/57. Class 135. A pressure regulator comprises a supply valve 26, spring urged towards a fixed seating intermediate inlet and outlet ports 14, 18 and actuated by a movable wall assembly 55 carrying a seat for a relief valve 32 integral with the supply valve and venting to atmosphere through a port 36, the wall assembly being urged by a spring 78 towards the relief valve and subjected on the lower side to outlet pressure and on the upper side to a pilot pressure. The pressure in the pilot chamber 44, which is in communication with atmosphere through a restricted orifice 84, is controlled by a pilot valve 58 attached to an adjustably mounted pressure-responsive metal capsule 64 internally vented to atmosphere and situated in a control chamber 38 fed with outlet pressure fluid through a passage 40. In operation, the outlet pressure in the control chamber acts on the capsule 64 which actuates the pilot valve to regulate the pressure in the chamber 44 and thereby to govern the position of the supply valve. The relief valve opens in the event of excess pressure build-up in the outlet. The two diaphragms 46, 48 of the assembly 55 may be of equal or unequal effective areas.
Patent GB-967217-A (GB)
Title: Improvements in or relating to surgical footwear
IPC: A61F3/00
Filed: 1961-08-05
Abstract: 967,217. Surgical footwear. J. GUEST. Dec. 28, 1962 [Aug. 5, 1961], No. 35849/61. Heading A3B. [Also in Division B5] Surgical footwear is made by forming the lower or false foot portion 11, and preferably the upper portion also, as a single moulding from several layers of polyester resin-impregnated fabric allowed to set whilst applied to the interior of a multipart female mould 10<SP>1</SP>, 10<SP>2</SP> by internal fluid pressure applying means, e.g. an inflatable bag 12 filled with air or hot water. One of the mould parts, say 10<SP>1</SP>, is lined with cellulosic film and 3 to 10 layers of polyester resin impregnated glue or nylon fabric cut oversize are fitted in and covered with further cellulosic film. The deflated rubber air-bag 12 of complementary shape is then inserted into the lined cavity and the free edges of the film and fabric are turned over it and covered by smaller impregnated fabric pieces. The second mould part 10<SP>2</SP>, also lined with cellulosic film, is then superimposed on the part 10<SP>1</SP>, the inflation neck 13 of the bag 12 being accomodated in opposed grooves 14 in the two parts which are clamped together after correct registration by metal dowels 15 and holes 16. The bag 12 is then inflated to 10 to 20 p.s.i., trapped air escaping through a vent 17. Impress of moulding material into the joint between the parts 10<SP>1</SP>, 10<SP>2</SP> is prevented by corner plates secured to carrier strips 19 fitting flush with the inner marginal face of part 10<SP>1</SP> and pinned thereto at 20. After 6 to 8 hours setting, the bag 12 is deflated and withdrawn, the mould parts separated and screws 22 used to eject the moulded piece 11 which is then nicked at 23 to allow flexing. The upper portion 24 is similarly moulded and has a hollow shank 25 fitting within the neck 21 of the false foot part 11 and cemented therein by a single layer of the impregnated fabric being interposed between the coacting surfaces. The upper part 24 is provided with a loadbearing platform 34 for the foot of the wearer separately moulded from the polyester resin-impregnated fabric layers and cemented in position. Specification 679, 691 is referred to.
Patent GB-1353084-A (GB)
Title: Method and apparatus for the adhesive joining of textile sheet pieces
IPC: A41H43/04
Filed: 1971-07-30
Abstract: 1353084 Laminates KANNEGIESSER MASCHINENFABRIK GmbH 30 July 1971 [30 July 1970 31 July 1970] 36013/71 Heading B5N Two pieces of textile sheet material at least one of which is provided on one surface with an adhesive material which is rendered adhesive under the action of heat, are adhesively joined in superimposed relationship by inserting the textile pieces in superimposed relationship in recesses in a template supported on a thrust platen, the template being adapted to locate the pieces in predetermined positions with respect to each other, biasing the pieces towards the thrust platen by suction and clamping the pieces between the thrust platen and at least one heated die. A smaller interlining piece coated with adhesive and a larger basic interlining piece may be bonded together by the method. In Fig. 1 two adhesive joining stations 12 and 13 each comprise at least one heated welding die 14 and 15 adjustably mounted on thrust plates 16 and 17 disposed on thrust cylinders 18 and 19 mounted on support 20 of base frame 21. Mating thrust platens 23 and 24 having air-permeable operative surfaces 37 and 38 connected to vacuum means 39 and provided with templates 26 are slidably mounted on guide rods 25, so that they can be slid in horizontal directions between operating station 11 and adhesive joining stations 12 and 13, the textile pieces being loaded on to one platen in operating station 11 while the textile pieces on the other platen are clamped between the other platen and the heated die. Each template may be formed of two superimposed layers, e.g. of board, having respective apertures of different size corresponding to the outlines of the textile sheet pieces to be joined, holes preferably being provided in the shoulder formed between the two apertures.
Patent GB-1377228-A (GB)
Title: Hydrocyanation of unsaturated organic compounds
IPC: C07F15/04
Filed: 1972-08-02
Abstract: 1377228 Hydrocyanation catalyst E I DU PONT DE NEMOURS & CO 2 Aug 1972 [2 Aug 1971] 36119/72 Heading B1E [Also in Division C2] Catalyst systems used in the hydrocyanation of ethylenically unsaturated organic compounds comprise at least one zero valent nickel complex selected from Ni(PXYZ) 3 (R<SP>2</SP>CN) and Ni(PXYZ) 2 A wherein X is -OR, Y and Z are each -R or -OR and R is an alkyl or aryl radical each having up to 18 carbon atoms; wherein the 'R' radicals of a given PXYZ ligand may be cojoined, are the same or different, and are so chosen that the ligand has a cone angle with an average value between 130 and 170; wherein A is an unsaturated organic compound; and wherein R<SP>2</SP> is an alkyl, cyanosubstituted alkyl, alkenyl or aryl radical each having up to 20 carbon atoms, the carboncarbon double bond of the alkenyl radical being isolated from the nitrile group by at least one carbon atom. The nickel complexes can be pre-formed or prepared in situ by reduction of a divalent nickel compound with a metal more electropositive than nickel in a saturate daliphatic dinitrile solvent or by treating an organo nickel compound with the appropriate ligand. Preferred PXYZ ligands are tri-o-tolylphosphite, phenyl di-o-tolylphosphite and tri-2,5- xylylphosphite. Catalyst promoters specified are metal cations, borohydrides and organo boron compounds.
Patent GB-1315682-A (GB)
Title: Esters and amides of alk-2-enoic acids and their use in insect control
IPC: C07D317/62
Filed: 1970-07-27
Abstract: 1315682 Alkenyl esters and amides ZOECON CORP 27 July 1970 [2 Sept 1969] 36192/70 Heading C2C [Also in Division C5] The invention comprises compounds of the Formula I where m is an integer of one to six, n is an integer of 2 to 6, R<SP>2</SP> is a hydrogen atom or an alkyl radical R<SP>1</SP> and R<SP>3</SP>-R<SP>6</SP> are each alkyl radicals, R<SP>7</SP> is the group -COOR<SP>9</SP> or -CONR<SP>10</SP>R<SP>11</SP> where R<SP>9</SP> is a hydrogen atom or an alkyl, cycloalkyl, aralkyl or metal radical and each of R<SP>10</SP> and R<SP>11</SP> is a hydrogen atom or an alkyl, cycloalkyl, hydroxyalkyl, alkoxyalkyl, alkenyl or phenyl radical or together with the nitrogen atom to which they are attached form a pyrrolidine, morpholine, piperidine, piperazine or 4-alkylpiperazine radical, provided that when R<SP>7</SP> is -COOR<SP>9</SP> and R<SP>2</SP> is H, at least one of R<SP>4</SP>, R<SP>5</SP> and R<SP>6</SP> is alkyl of at least two carbon atoms. These compounds and others of the above formula wherein R<SP>7</SP> is not limited by the stated proviso may be prepared by reacting a compound of Formula II with an acetylenic ester or amide of formula R<SP>1</SP>C#C-R<SP>7</SP>. 1 - Bromo - 4 - ethyl - 4,7,7 - trimethyloctane is prepared by reacting phosphorus tribromide with 4 - ethyl - 4,7,7 - trimethyl - octan - 1 - ol which is prepared by reacting 3-chloro-3,6,6-trimethylheptane (II) with 3-bromo-1-(t-butoxy)- propane which is prepared from 3-bromopropanol and isobutene. II is prepared by reacting hydrochloric acid with 3,6,6-trimethylheptan-3-ol which is prepared from ethyl magnesium bromide and 5,5-dimethyl hexan-2-one which is prepared by dichromate oxidation of 5,5-dimethylhexan-2-ol which is prepared from methylmagnesium bromide and 4,4-dimethylpentan-1-al which is prepared from t-butyl chloride and acrolein diethyl acetyl. The methyl, ethyl and tetrahydropyran-2-yl esters of 3,7,7,11,11 - pentamethyldodec - 2 - en- 1-ol (III) are prepared by reacting the alcohol with diazomethane diazoethane and 2-chlorotetrahydropyran. III is prepared by reacting methyl 3,7,7,11,11- pentamethyldodec-2-enoate (I) with lithium aluminium hydride. Compounds I have pesticidal activity and may be used as such or in compositions together with an inert carrier and optionally an insect attractant.
Patent GB-337240-A (GB)
Title: Improvements in apparatus for the transverse registering of webs of fabric fed to or from machines
IPC: D06C15/00
Filed: 1929-11-26
Abstract: 337,240. Seabrook, H., (Weisbach Kommandit-Ges., C. H.). Nov. 26, 1929. Registering webs.-Apparatus for transversely guiding webs of fabric comprises a pair of rollers 2, 5 engaging each edge of the web and a disc 8 of larger diameter, co-operating with the roller 2 and adapted to be engaged and rotated by the web if it wanders from its path and by its rotation to separate the rollers 2, 5 to allow the other pair of rollers to restore the web to its correct path. The roller 5 is carried by a pivoted frame 4 and is normally held in operative position by a spring-pressed plunger 10 carried in a fixed bracket 1<a> and engaging the frame 4. The disc 8, which is preferably provided with a rubber tyre 9, is secured to a shaft 6 rotatable in arms 18, 19 on a sleeve loose upon a shaft 20 and the end of the shaft 6 is provided with an eccentric pin 7 adapted, when the disc 8 is turned, to engage a flange 10<a> on the plunger and withdraw the plunger from engagement with the frame 4. A screw 21 engaging the arm 18 is provided to adjust the normal distance apart of the disc 8 and roller 2.
Patent GB-812613-A (GB)
Title: Improvements in elastomers
IPC: C08L75/00
Filed: 1955-12-19
Abstract: A composition of matter comprises an organic diisocyanate modified polyester, polyamide or polyalkylene ether glycol elastomer and from 0.05 to 3 parts by weight of beeswax per 100 parts by weight of elastomer to improve the processing characteristics thereof.  Refined or bleached beeswax is preferred, although crude and adulterated beeswax are also referred to.  There may be present in addition high molecular weight aliphatic esters of monobasic acids such as wool grease, methyl palmitate, hydrogenated vegetable oils and diglycol stearate.  In an example a hydroxyl (polyethylene adipate) is reacted with 0.3 mols. of water and 1.25 mols. of paraphenylene diisocyanate. The product is milled with 0.2 part per 100 parts by weight of beeswax.  Pigments such as carbon black may also be incorporated. The elastomer is milled with 1,5 naphthylene diisocyanate and cured under heat and pressure.  Beeswax may also be incorporated in the reaction product from polybutylene ether glycol and excess tolylene2,4 diisocyanate.
Patent GB-1117670-A (GB)
Title: Hydraulic presses
IPC: B30B15/04
Filed: 1965-08-24
Abstract: 1,117,670. Metal working presses. E. W. BLISS CO. 24 Aug., 1965 [22 Sept., 1964], No. 36386/65. Heading B3H. [Also in Division B5] A stamping, coining or embossing press is provided with misalignment-preventing means comprising lower and upper guide means 22, 60 co-operating with a ram G connected to a movable platen F. The lower guide means includes a pair of axially tapered ring members 24, 26 (Fig. 3) having mutually engaging tapered surfaces 55, 57. The member 26 is axially movable relative to the member 24 in response to differential fluid pressures acting thereon, thereby causing expansion and contraction of the members 26, 24 respectively so that side play between the ram G and cylinder H is eliminated. The member 26 may be axially split at intervals in its circumference to increase the effect. The upper guide means comprises a plurality of equally spaced hydrostatic bearing pads 62 each having a fluid pressure inlet 63 and outlet 64. A pressure control system (70, 72, 75, 76 etc.), Fig. 6 (not shown), separate from the ram pressure source, delivers and exhausts fluid under pressure to and from the pressure pads 62 at equal rates of flow so that any misalignment of the movable platen F will be resisted by compensating increases and decreases in the radially opposing pads 62.
Patent GB-1068507-A (GB)
Title: Acrylonitrile copolymers
IPC: C08F220/46
Filed: 1965-08-25
Abstract: A copolymer of acrylonitrile and a monomer or monomers including a compound of Formula I <FORM:1068507/C3/1> wherein R is H or CH3 and M is H, Na, K or Li. Polymerization may be carried out in aqueous dispersion or in an organic solvent using a free radical catalyst. Copolymers exemplified contain acrylonitrile, the compound of Formula I and methyl acrylate or the diethyl ester of bicyclo[2.2.1]hept - 5 - ene - 2,3 - dicarboxylic acid, or 2-nor camphanyl acrylate, vinylidene chlorides, N-isopropyl acrylamide, vinyl chloride, N,N-dimethylacrylamide or methyl methacrylate. The copolymers may be spun into fibres and dyed with basic dyes.