baber/WOPTO huggingface dataset:
Patent GB-878114-A (GB)
Title: Improvements in and relating to polyvinyl ester emulsions
Filed: 1959-10-30
Abstract: A composition comprises a water-redispersible dry vinyl ester polymer emulsion powder containing interspersed therein a hydrophilic colloid and dry glyoxal.  The polymer may be a powder prepared by a freeze- or spray-drying process, e.g. according to the process disclosed in Specification 753,173.  The hydrophilic colloid may be polyvinyl alcohol, hydroxyethyl cellulose, dextrin, starch, gum tragacanth or gum arabic.  The polymer may be a homopolymer of vinyl acetate, propionate, butyrate, hexoate, benzoate or stearate, or copolymers of these, e.g. with maleic and fumaric esters, other vinyl esters, vinyl halides, e.g. vinyl chloride or bromide, acrylic and methacrylic esters, or with acrylic, methacrylic or crotonic acids.  The composition may be made by mixing the dry components together at room temperature. The compositions may be dispersed in water to form emulsions, and films may be cast from them, or they may be used as adhesives. Specifications 466,173 and 785,406 also are referred to.
Patent GB-949255-A (GB)
Title: Hydrogenation of aldehydes at enhanced rate using platinum and ruthenium catalysts
IPC: C07C29/141
Filed: 1961-10-30
Abstract: Aldehydes are hydrogenated with hydrogen containing a small amount of oxygen in the presence of a catalyst containing ruthenium or platinum. In general the product is the corresponding alcohol but when an olefinically unsaturated aldehyde is used as starting material the hydrogenation may be stopped after the saturation of the double bond. Preferably the hydrogen contains 0.1-5% by volume of oxygen. The process may be carried out at 10-250 DEG C. and a pressure from atmospheric to 1,000 psig. The ruthenium or platinum is preferably supported on a carrier, for example, calcium carbonate, zinc oxide, barium sulphate, carbon, alumina and silica. Suitable aldehydes for use as starting materials are for example,, acetaldehyde, propionaldehyde, n-butyraldehyde, isobutyraldehyde, n-valeraldehyde, n-capronaldehyde, n-heptaldehyde, n-octyl aldehyde, nonyl aldehyde, n-decyl aldehyde, lauryl aldehyde, benzaldehyde, toluylaldehyde, piperonal, naphthaldehyde, methoxybenzaldehyde and undecylenic aldehyde.
Patent GB-1116614-A (GB)
Title: Amination of alkylbromides
IPC: C07C209/08
Filed: 1966-08-31
Abstract: Trialkyl amines are prepared by a process comprising (a) preparing a mixture comprising an alkyl bromide raw material containing a major proportion of straight chain primary alkyl bromide and a minor proportion of straight chain secondary and branched chain primary alkyl bromides, the alkyl groups containing from 10 to 20 carbon atoms, a dialkyl amine where the alkyl groups contain from 1 to 3 carbon atoms, and water, the molar ratio of amine to alkyl bromide being in excess of 8:1, and the ratio of water to amine being from 5: 95 to 20: 80 by weight; (b) reacting said mixture at a temperature from 100 DEG  to 190 DEG  F. for 2 to 7 minutes; and (c) heating said mixture to a temperature of from 275 DEG  to 375 DEG  F. for a time of 4.5 to 12 minutes, the pressure being sufficient to keep the amine in the liquid state. The alkyl bromide raw material preferably contains from 88% to 95% by weight of straight chain primary alkyl bromide, and the preferred amine is dimethylamine.  The reaction may be carried out in batch or continuous manner.
Patent GB-895049-A (GB)
Title: N-substituted-4-aryl-4-acyloxy piperidines
Filed: 1960-11-14
Abstract: The invention comprises compounds of the general formula <FORM:0895049/IV (b)/1> and their addition salts with inorganic and organic acids, wherein R represents an alkyl group, R1 and R2 which may be the same or different represent hydrogen atoms or alkyl groups, R3 represents an aryl group and R4 represents C4-10 branched or unbranched saturated or unsaturated aliphatic hydrocarbon residue, if desired, interrupted by an oxygen or sulphur atom or an imino or N-alkylimino group, and the preparation thereof by (a) condensing a 4-aryl-4-piperidinol with a haloalkylcyanide and esterifying the resulting N-cyanoalkyl-4-aryl-4-piperidinol; (b) condensing a 4-aliphatic acyloxy-4-aryl-piperidine with a haloalkyl cyanide; (c) reacting an N-cyanoalkyl-piperidine-(4) with a Grignard reagent R3MgX (where X is a chlorine bromine or iodine atom) or with R3Li and esterifying the resulting piperidinol; and (d) reacting a 4-aryl 4-piperidinol with a dihalogeno compound X-R4-X and reacting the 4-haloalkyl-4-aryl-4-piperidinol with a metal cyanide and esterifying the free -OH group.  The process under (c) may be combined with one wherein the piperidone is prepared by reacting a substituted or unsubstituted N-cyanoalkyliminodipropionic acid dialkyl ester with a strong base and with a further process wherein the above ester is prepared by reacting an amine NCR4NH2 with an acrylic acid alkyl ester CH2=CR1-COOR5 (where R5 is an alkyl group).  o -Chlorohexyl cyanide, o -bromopentyl cyanide and o -bromodecyl cyanide are prepared from the dihaloalkane and potassium cyanide.  The compounds of the invention may be contained in analgesic compositions in a form suitable for oral, parenteral or rectal administration (e.g. tablets, capsules, dragees, linctuses, syrups, injection solutions or suppositories).
Patent GB-1108299-A (GB)
Title: Sustained release dosage forms and their preparation
IPC: A61K9/16
Filed: 1965-09-14
Abstract: Sustained-release therapeutic compositions comprise a therapeutic agent enveloped in a film comprising aluminium aspirin.  The therapeutic agent may be aspirin meprobamate nicotinic acid, phenacetin, acetaminophenol, a sulpha drug aluminium hydroxide or other water-insoluble antacid tetracycline or a water-insoluble penicillin salt.  More than one such agent may be present and the composition may be in the form of a multi-layered tablet, at least one layer of which is prepared by granulating the agent with an organic solvent solution of aluminium aspirin, optionally comprising a film-forming polymer e.g. polyvinyl pyrrolidone, polyvinyl alcohol, carboxy polymethylene, ethyl or methyl cellulose, hydroxy ethyl cellulose or polyvinyl acetate, and/or a surfactant, and compressing the granulate into a tablet or a part thereof.  The aspirin and therapeutic agent together make up at least 60% of the composition.
Patent GB-340133-A (GB)
Title: Pages lock for printers' forms
IPC: B41B1/18
Filed: 1929-12-24
Abstract: 340,133. Ohlsen, H. B., and Harbig, E. Dec. 21, 1929. Holders for standing matter. - The holder is composed of side-bars a, Fig. 1, formed at their ends with locking-noses c and with cut-out portions b, so that the bars may be placed around the type and connected together at the corners, as shown in Fig. 2, with a certain amount of play, to permit of expansion. The space d at each corner receives a spring pin e, Fig. 5, or the like, to urge the frame into its contracted position.
Patent GB-813867-A (GB)
Title: Purification of esters of dicarboxylic acids
Inventor: DOBSON KENNETH ROWLAND
IPC: C07C69/76
Filed: 1956-12-27
Abstract: Alkyl and oxa-alkyl diesters of dicarboxylic acids are purified by a process comprising treating the ester with ozone and thereafter with a reducing agent so as to decolorize or improve the odour stability of the ester.  The ozone treatment may be effected with ozonized air at about 10-100 DEG  C.  The treatment with a reducing agent may be effected by washing the ester with an aqueous solution of a reducing agent such as an alkali metal sulphite or bisulphite, sulphur dioxide, sodium nitrite, hydrazine or, according to the Provisional Specification, ferrous sulphate, suitably at about 20-100 DEG  C. using a concentration of reducing agent of about 1-20 per cent by weight. Alternatively, the ester may be treated with hydrogen in the presence of a hydrogenation catalyst.  In between the treatments with ozone and the reducing agent, the ester is preferably washed with an aqueous solution of an alkali as described in Specification 783,463. The process may be combined with other purifications.  Thus, the ester may be washed with aqueous alkali prior to the ozone treatment and, if desired, steamed and after the ozone treatment it may be treated with activated carbon and then, if desired, again treated with ozone.  Following the treatment with the reducing agent, the ester is preferably washed with water and then dried.  Esters which may be purified include the di-esters of saturated aliphatic alcohols such as the butanols, octanols, nonanols, decanols and alcohols containing etherlinkages, for example butoxy-ethanol, with dicarboxylic acids such as phthalic, pimelic, sebacic, oxalic and tartaric acids and mixed esters of these acids such as butyl octyl phthalate.  Examples are given describing the purification of a mixture of di-esters obtained from phthalic anhydride and C7-9 primary alcohols and di-2-ethylhexyl phthalate respectively using aqueous sodium sulphite or bisulphite, aqueous hydrazine or hydrogen and Raney nickel as reducing agent.  In some cases, the products are finally steamed, washed with water or washed with aqueous alkali and the esters are then compared with the corresponding esters treated similarly but with omission of the reducing treatment and having, in consequence, a higher peroxide impurity content.  Di-butoxyethyl phthalate is another specified ester.
Patent GB-957460-A (GB)
Title: Apparatus for heating water by means of the water cooling system of an internal combustion engine
IPC: F02G5/00
Filed: 1961-11-03
Abstract: 957,460. Hot-water supply systems; cooling systems for internal-combustion engines; heat exchange apparatus. R. J. SEARLE. Jan. 17, 1963 [Nov. 3, 1961; Dec. 13, 1961], Nos. 39347/61 and 44618/61. Headings F4A, F4S and F4U. Water for human consumption is heated in a heat exchanger 1 by liquid circulating as the coolant in a liquid-cooled internal-combustion engine cooling system. The system shown is intended to be used in a vehicle or in a caravan where the domestic water is stored in a reservoir. The system includes a by-pass line incorporating a valve 10 and the pressure drop through the heat exchanger 1 is arranged to be higher than that through the open valve 10. Consequently, by manipulation of the valve 10, all the water may be caused to flow through the heat ex. changer 1, or through the by-pass, or in part through both so that the temperature of water discharged through the faucet 11 may be regulated. The heat exchanger 1 may be located in the header of the engine radiator, in the radiator by-pass duct, or in the engine water jacket. A preferred form of heat exchanger consists of an arrangement of concentric tubes for the water to be heated arranged in a chamber through which the engine coolant liquid is circulated (Figs. la, 1b not shown). An alternative form of heat exchanger consists of a conduit with a finned or corrugated wall.
Patent GB-1272400-A (GB)
Title: Improvements in or relating to washing machines
Inventor: BROWN ALAN KEITH
IPC: D06F34/16
Filed: 1968-08-19
Abstract: 1,272,400. Washing machines. BRITISH DOMESTIC APPLIANCES Ltd. 22 July, 1969 [19 Aug., 1968], No. 39487/68. Heading D1A. In a washing machine of the horizontal drum type, a linearly extensible member 13 responsive to eccentric movement of the clothes drum 1 is provided for actuating sensing means which when actuated operate control means of the electric motor driven drum to cause the drum to revert to a stationary or low speed condition to allow correction of the out-of-balance condition. As shown the drum 1 is driven through a belt drive from an electric motor 8 mounted below an outer non rotating drum 3 which is supported from a fixed cabinet by four telescopic struts 13. Each strut comprises a rod 23 which, is surrounded by a spring 30 and slidable within a moulded plastics cylinder 21, which has a lug 17 for a resilient bush and pivot stud 18. The sensing means is a microswitch 32 mounted on one of the cylinders 21 and having an horizontal operating plunger which is actuated by the top of the rod 23 when the drum rises too far due to uneven loading. The drum may alternatively be resiliently suspended from an upper part of the cabinet. The linearly extensible member may extend between other parts of the cabinet and drum or between relatively movable parts of the drum suspension means.
Patent GB-1243397-A (GB)
Title: Cleaning appliance particularly for cleaning carpets and upholstered furniture with liquid cleaning agents
Inventor: ALBISHAUSEN HARTMUT
IPC: A47L11/32
Filed: 1968-08-19
Abstract: 1,243,397. Cleaning floor coverings, &c. H. ALBISHAUSEN. 19 Aug., 1968 [19 Aug., 1967], No. 39620/68. Heading A4F. A brush for cleaning carpets and upholstery comprises rows of bristles mounted in a back plate 1 within a hood 3 having a connector 7 for a suction hose, and a cleaning liquid is supplied to a looped spray tube 14 provided between two rows of bristles 13, 13a, the used cleaning liquid being withdrawn through the suction hose via suction openings 21 provided in the back plate 1 between the bristles 13 and further bristles 2 disposed around the periphery of the brush. The applied suction is regulated by adjustment of a valve 17 to admit a controlled supply of air to the space 20 in front of the back plate 1, and of a perforated sleeve 26 threaded on to the connector 7 which is also apertured. Another embodiment has a single suction opening in the back plate and a different means for admitting a controlled supply of air into the hood 3 to regulate the applied suction.
Patent GB-861505-A (GB)
Title: Improvements in or relating to method of chlorination of polyolefins
IPC: C08F8/20
Filed: 1959-11-23
Abstract: A polyolefin is chlorinated by contacting at a temperature of 65-105 DEG  C. chlorine gas, and a suspension of the polyolefin in concentrated hydrochloric acid.  The polyolefin may be derived from ethylene and/or propylene, may be of high or low density, and is preferably in the form of small particles, e.g. granules or powder. The reaction may be effected with the aid of actinic light in the 2500-6000   range.  The products may be stabilized with b -naphthylamine and may be formed into fibres, films, rods or tubes, or use for flameproofing polyvinyl chloride.
Patent GB-1162134-A (GB)
Title: Mechanism for Controlling or Programming one or more Electric Circuits
Inventor: WILKINSON EDWARD
IPC: G05B19/14
Filed: 1965-09-17
Abstract: 1,162,134. Stencil switches; time switches. E. WILKINSON. 16 Sept., 1966 [17 Sept., 1965], No. 39732/65. Heading H1N. [Also in Division G3] A mechanism for controlling or programming one or more electric circuits, comprises an endless perforated film or tape co-operating with pins controlling a circuit for an electric motor driving a plurality of cams for a cycle of movements, each electric circuit being controlled by a pin passing through a perforation on to a control cam. As shown, a continuous loop of film F is driven by rollers, not shown, geared to an electric motor 17 which additionally drives a clock dial arrangement 16 indicating days and hours. The film passes over a pick-up assembly comprising micro-switches S 1 -S 5 . The master switch S 2  is actuated by a pin P<SP>1</SP> dropping through a perforation on the tape into a depression on a cam C 2  and initiates the energization of a motor 18, driving cams C 1 -C 5 , which is maintained operative for one revolution by the switch S 1  co-operating with the cam C 1 . The switches S 3 -S 5  co-operating with cams C 3 -C 5  control time-dependent operations. The perforations provide the main programme and the cams ensure accuracy. Separate switches may be provided for actuation by the perforations and cams, respectively, in series connection, thereby making control of a circuit finally dependent upon its cam-operated switch. Relays are provided whereby the programme can be held and the film can be manually moved by a knob (not shown). Push-buttons (19, 20, Figs. 1 and 4, not shown) provide manual override of switches S 3 -S 5
Patent GB-1097972-A (GB)
Title: Nuclear reactor fuel elements
Inventor: IRONSIDE ALEXANDER MEPHER
IPC: G21C3/36
Filed: 1964-09-30
Abstract: 1,097,972. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Sept. 14, 1965 [Sept. 30, 1964], No. 39761/64. Heading G6C. A fuel element comprises at least two spaced concentric tubes, each tube having at least one curved plate of clad fuel with adjacent edges joined together, and the joint(s) of one tube being staggered relative to the joint(s) of the other. The fuel may be enriched uranium metal and the cladding may be aluminium, the cladding extending beyond the fuel in the region of the joints so that the joints are formed, as for example by electron beam welding, between the cladding of adjacent edges of the plates. The staggering of the joints provides a more uniform overall neutron flux profile. The uniformity of the surface heat flux may be enhanced by chamfering the side edges of the fuel so as to decrease in thickness towards the joints. The cladding also extends beyond the fuel at the ends of the tubes, and the end edges of the fuel may be chamfered so as to decrease in thickness towards the tube ends.
Patent GB-1392168-A (GB)
Title: Saccharose products
IPC: C08G65/28
Filed: 1973-08-22
Abstract: 1392168 Saccharose hydroxyalkyl ethers BAYER AG 22 Aug 1973 [22 Aug 1972] 39763/73 Heading C2C [Also in Division C3] Saccharose hydroxyalkyl ethers are made by reacting a mixture of 100 parts saccharose; 2-5 parts water; 2-20 parts water-soluble polyhydric alcohol and/or monoamine and/or polyamine having a molecular weight of 60- 250; 40-150 parts aromatic hydrocarbon solvent having a b.pt. of 80-180‹ C. or a mixture thereof with an aliphatic solvent having a b.pt. of 80-180‹ C.; and 1-5 parts alkali metal hydroxide the parts being by weight with one or more alkylene oxides at elevated temperature and pressure in an inert atmosphere.
Patent GB-1329940-A (GB)
Title: Sterilizable bag-package and a method of producing such packages
IPC: B65D75/54
Filed: 1972-08-25
Abstract: 1329940 Sterilizable packages R H WERNBORG 25 Aug 1972 [31 Aug 1971] 39770/72 Headings B8C and B8K A sterilizable package comprises a paper outer sheet 1 on one side capable of serving as a bacteria filter, and an outer sheet 2 on the other side and a smaller inner sheet 3 both of a transparent and thermoplastic film material, the three sheets being heat sealed together, the thermoplastic sheets 2 and 3 forming a pocket for the article to be packaged and capable of acting as a waste bag after sheet 1 has been peeled off and the article removed. The package may be formed by heat sealing three webs 1A, 2A and 3A together along lines 4 and 5, severing the bags thus formed from each other, inserting an article into a bag, and heat sealing it along a line 6.
Patent GB-1242418-A (GB)
Title: Flexible chamber pumps
IPC: A61M60/268
Filed: 1968-08-21
Abstract: 1,242,418. Flexible chamber pumps. SUSQUEHANNA CORP. Aug.21, 1968 [Sept.15, 1967], No.39983/68. Heading F1A. [Also in Division A5] A positive displacement pump comprises a deformable generally cone-shaped hollow chamber 10 closed at the narrow end and made from a natural or synthetic polymer, a closure 18 which may be integral with or removable from the chamber, a generally tangential inlet passage 12, and a generally tangential outlet passage 13, both passages 13 and 12 being provided with a non-return valve 14. Pumping action is obtained by periodically deforming the chamber 10, preferably by twisting by means of an actuator, which grips a cylindrical extension 16 protruding from the narrow end, and a lever 24 which may be driven by a motor with a cammed flywheel. The deformation of the chamber may be limited by fixing an external rigid truncated cone 28 to the actuator. By varying the height of the cone 28, the degree of twist of the chamber and its configuration, an inwardly lobed shape, Figs. 2, 3 (not shown), is obtained without outward distension, to provide a smooth spiral flow-path for the fluid. In modifications, the pump chamber is twisted by providing an expanding helix tube around the chamber with pulses of hydraulic fluid through it, or by twisting a helical spring around it. The chamber may be provided with means to remove stagnant fluid and/ or solids and heavy liquids.
Patent GB-1530905-A (GB)
Title: Electro-mechanical transducer
IPC: C30B29/30
Filed: 1975-10-03
Abstract: 1530905 Doped lithium niobate TOKYO SHIBAURA ELECTRIC CO Ltd 3 Oct 1975 [7 Oct 1974] 40098/75 Heading C1A [Also in Division H3] An acoustic wave device comprises a lithium niobate substrate containing at least one dopant selected from Ta, Ta 2 O 5 , Pd, SiO 2 , TiO 2 , V 2 O 5 , V. A method is described of making a lithium niobate monocrystal.
Patent GB-1319525-A (GB)
Title: Brake valve assembly for three-circuit air brake installation
IPC: B60T15/04
Filed: 1970-08-20
Abstract: 1319525 Valves for tractor-trailer compressed air brake systems WESTINGHOUSE BREMSEN- & APPARATEBAU GmbH 20 Aug 1970 [28 Aug 1969] 40140/70 Heading F2F A valve assembly incorporated in a threecircuit air brake system of a tractor-trailer combination has three inlet ports 1, 2, 3 connected to three independent pressure supplies and three outlet ports 4, 5, 6 connected to three independent brake actuating circuits for the front and rear wheels of the tractor and the wheels of the semi-trailer and the valve assembly is operable by means of a brake pedal which causes a stepped piston 24 to move down to first cut off communication of a pressure chamber 10 with atmosphere via a port 23, and then act on a valve element 12 to introduce pressure into the chamber 10 from an inlet duct 9 and open the first circuit; this pressure acts on the underside of the stepped piston 24 to move the piston 24 up and this pressure also passes via a control port 57 into a control chamber 34 where it acts on a control piston 35 which is depressed and acts via pistons 37, 38 integral of piston 35 on a valve 42 to close a vent passage 43 and open the second circuit; simultaneously air flows from control chamber 34 via a duct 58 into a control chamber 46 where it acts on a piston 44 which is depressed and acts via pistons 45, 54 to close a vent passage and open a valve 56 of the third circuit. As the piston 35 is moved down it shutters a port 60 of a duct 59 which leads to a control chamber 47 of the third brake circuit. If the brake circuits fail the valves 12, 42, 56 are operable mechanically by virtue of an interlink comprising a bolt 28, and push-rods 22, 53 between which are formed gaps acting as lost motion connections. A rubber element 32 is situated between the brake pedal and the piston 24.
Patent GB-1065798-A (GB)
Title: Joint construction for,e.g. panels
IPC: E04C2/38
Filed: 1963-10-11
Abstract: 1,065,798. Laminates. LOCKHEED AIRCRAFT CORPORATION. Oct. 11, 1963 [Oct. 25, 1962], No. 40167/63. Heading B5N. [Also in Division E1] Panels 14 and 16 for use in buildings or for making e.g. crates, have cores 20 comprising a cellular structure of impregnated paper or metal, or cellular polystyrene or polyurethane, laminated between plywood sheets 22 which may have an outer covering comprising a protective film or sheet of, e.g., phenolic resin.