baber/WOPTO huggingface dataset:
Patent GB-1510223-A (GB)
Title: Method for producing polymer emulsions and paper-like materials and nonwoven fabrics therefrom
IPC: C08F2/26
Filed: 1975-11-05
Abstract: 1510223 Non-waven fabrics; papermaking SUMITOMO CHEMICAL CO Ltd 5 Nov 1975 45931/75 Headings D1R and D2B [Also in Division C3]  A process for producing non-woven fabrics comprises applying to a fibre web a polymer emulsion produced by polymerising a monomer mixture which comprises ethylene and vinyl acetate in the presence of an anionic emulsifier, a polyoxyethylene nonionic emulsifier, and a partially acetylated polyvinyl alcohol, these materials being present in an amount 10-30 parts by weight of the polyoxyethylene nonionic emulsifier and 0.5-5 parts by weight of the partially acetylated polyvinyl alcohol per 100 parts by weight of the anionic emulsifier and then treating the web with a coagulant. The monomer mixture may additionally contain vinyl chloride, an acrylic ester, an unsaturated. acid or a compound containing an epoxy or methylol group. Materials useful for the preparation of non-woven fabrics include regenerated cellulose fibres, polyester fibres, acetate fibres, polyvinyl alcohol fibres, polyvinyl chloride fibres and cottons. Suitable coagulants are calcium chloride, magnesium chloride or aluminium sulphate. In a specific Example a non-woven fabric is produced by treating rayon fibres with a polymer emulsion prepared by polymerising ethylene and vinyl acetate in the presence of a mixture of sodium lauryl sulphate and polyoxyethylene nonyl phenol ether and subsequently using CaCl 2  as the coagulant. Paper-like material is produced from organic or inorganic fibres in a process involving adding to the fibrous pulp, as a binder for the fibres, a polymer emulsion produced by polymerising a monomer mixture which comprises ethylene and vinyl acetate in the presence of an anionic emulsifier, a polyoxyethylene nonionic emulsifier, and a partially acetylated polyvinyl alcohol, these materials being present in an amount 10-30 parts by weight of the polyoxyethylene nonionic emulsifier and 0.5-5 parts by weight of the partially acetylated polyvinyl alcohol per 100 parts by weight of the anionic emulsifier. The monomer mixture may additionally contain vinyl chloride, an acrylic ester, an unsaturated acid or a compound containing epoxy or methylol group. Suitable pulps which may be used are organic fibres, such as conventional pulps, synthetic pulps, rayon pulps and collagen fibres, and inorganic fibres such as asbestos, rock wool or glass fibres. Specific Examples describe the preparation of sheet material using cellulose pulp and asbestos fibres using a polymer emulsion prepared by polymerising ethylene and vinyl acetate in the presence of a mixture of sodium lauryl sulphate and polyoxyethylene nonylphenol ether.
Patent GB-991819-A (GB)
Title: Improvements in or relating to the manufacture of sultones
IPC: C07D327/04
Filed: 1962-12-06
Abstract: Sultones are prepared by the reaction of an a -olefin of the formula R3R2R1C-CH2-CH=CH2 where R1-3 are hydrogen or aliphatic hydrocarbon radicals, with less than the molar equivalent of sulphur trioxide. The invention also includes aliphatic sultones containing 5- or 6-membered sultone rings having 12-22 carbon atoms per molecule. The preferred amount of sulphur trioxide is 0.8-0.2 mols. per mol. olefine.  The sulphur trioxide may be in the gaseous, preferably diluted with an inert gas, or solid state or in solution, e.g. in liquid dioxide, or an addition compound of, e.g. dioxane.  The preferred form is a mixture of 3-15% by volume sulphur trioxide with air. The preferred olefines are those containing more than 10 carbon atoms, particularly 12-22 carbon atoms, but higher olefines, e.g. having 30 carbon atoms, can be used.  The reaction is best carried out at temperatures below 70 DEG  C., preferably in the range - 10 DEG  to 40 DEG  C.  The yield increases with decrease in temperature. If the olefines contain more than 10 carbon atoms, the sultones begin to crystallize out of the reaction mixture after the introduction of C. 0.1-0.2 mols. sulphur trioxide and in these instances it is preferred to use higher temperatures or inert diluents.  These crystalline sultones are readily isolated, e.g. by filtration, and can be purified by recrystallization.  The volatile sultones obtained from the lower olefines can be recovered by the methods described in Specification 991,818.  The sultones can also be isolated by solvent extraction. If the sultones are required for further reactions the crude reaction mixture can be used.  The excess olefine and high boiling constituents can be removed from the mixture by a thin film evaporator.  Examples described the preparation of sultones from n-decene-1, n-hexadecene-1, n-octadecene-1, technical tetradecene-1, n-hexene-1 and n-butene-1.
Patent GB-1207398-A (GB)
Title: An apparatus for regulating a gas compressor
IPC: G05D16/16
Filed: 1967-10-10
Abstract: 1,207,398. Fluid-pressure servomotor systems. COMPRESSEURS BERNARD. Oct.10, 1967 [Oct.12, 1966], No.46192/67. Heading G3P. The speed of operation of a gas compressor is varied in relation to the rate of flow through an outlet 2 from a receiver 1 supplied by the compresser. When flow takes place through the outlet the pressure difference in a venturi 5 is communicated to a diaphragm 6 to lift a valve carried by the diaphragm out of engagement with a seat in a fixed partition 9 so that compressed air may pass from a line 37 through ports 36, 33, a manifold 32 and a port 34 to a space 20 to cause a diaphragm 8 to actuate a speed control F, such as a fuel-pump rank, for the compressor. Between the ports 36, 33, the compressed air flows through a chamber 17 and acts on a diaphragm 7 which is connected to the diaphragm 6 by a rod of constant length and closes the valve when the pressure in the chamber 17 is greater than the pressure differential on the diaphragm 6 by an amount corresponding to the ratio of the diaphragm diameters 29:30. The right hand side of the diaphragm 7 communicates with atmosphere through an aperture in a domed chamber 15 determining the effective diameter 30. An additional control B responsive to receiver pressure as well as flowrate may be provided.
Patent GB-1401233-A (GB)
Title: Method for the surface treatment of articles made from hydroxy ethyl methacrylate polymers
IPC: D06M101/16
Filed: 1972-10-06
Abstract: 1401233 Surface treatment of hydroxyethyl methacrylate polymers CESKOSLOVENSKA AKADEMIE VED 6 Oct 1972 [8 Oct 1971] 46246/72 Heading C3P The surface of an at least slightly crosslinked hydroxyethyl methacrylate polymer is treated with a sulphonation or phosphorylating agent. In examples polymers which are so treated are poly hydroxyethyl methacrylate, and a hydroxyethyl methacrylate/butylmethacrylate/ethyl dimethacrylate copolymer. These polymers are treated with fuming sulphuric acid vapour mixed with sulphur trioxide vapour or polyphosphoric acid and then neutralized. The process produces a hydrophilic surface layer and may be used to treat contact lenses, medical instruments and ships.
Patent GB-1356408-A (GB)
Title: Thermal regenerators
IPC: F16J15/34
Filed: 1971-10-06
Abstract: 1356408 Thermal regenerators BRITISH LEYLAND TRUCK & BUS DIVISION Ltd 13 Sept 1972 [6 Oct 1971] 46426/71 Heading F4K [Also in Division F2] A sealing assembly, for a rotary regenerative heat exchanger of the kind incorporating a disctype matrix 2 which is disposed within a casing 1 having an inner lip 5, comprises a support ring 3 carrying a counterface seal 4 arranged to be held against the corresponding face of the matrix by a metallic coil spring 7. A sealing 0- ring 6 is held against both the lip 5 and the base of the support ring 3 by the spring 7 which is trapped between the 0-ring and an L-shaped bracket 8 bolted to the casing. The sealing ring 6 is made of a high temperature elastomer, e.g. silicone rubber. The spring convolutions are all inclined at an acute angle to the longitudinal axis of the spring.
Patent GB-1520797-A (GB)
Title: Wetquenching of coke
IPC: C10B39/04
Filed: 1975-11-11
Abstract: 1520797 Wet quenching coke HARTUNG KUHN & CO MASCHINENFABRIK GmbH 11 Nov 1975 [14 Nov 1974] 46624/75 Heading F4B In a process for the wet quenching of coke, quenching water is sprinkled on to the hot coke in a container 46, the evolved water gascontaining vapour being collected and the water gas separated from the vapour and stored in a reservoir 32. As shown, hot coke in a car 59 having a bottom feed hopper 60 is transferred into the quenching container 46 through a closure member 61 and a container cover 46a. Quenching water is sprinkled on to the coke via pipes 45, 41 under the guidance of a pump 6 and a control valve 7. The vapour so-formed passes through pipe 2 through a first branch conduit 8 into a preliminary dust separator 9 and through a second branch conduit 13 which opens into a vent pipe 12 communicating with the atmosphere. After a time delay to purge air from the system, time switch 4 opens a valve 14 to fill container 11 with water from an elevated tank 15 under the control of a float valve 17. The deeper level of water in container 11 forces the vapour to flow through conduit 8 into the scrubber 10 having a valve 18 controlling sprinklers. Pure water gas is forced from the top of the cooling scrubber 10 through pipe 19 into a wet bell-type reservoir 20. When no more CO is detected by sensor 42, the time switch 4 controls the closing of valve 14, the opening of valve 22 thereby emptying container 11, and the closing off valve 18. Any further quenching vapours are discharged through pipe 12 and a scrubbing section 23. The cooling and scrubbing water is removed from a hot water buffer tank 26 by means of a pump 27 via a pipe 43 and is transferred to tank 15 via a trickling water cooler 25 and a pipe 44. An overflow 28 is provided in the tank 15. Any shortages of fresh water is made up via a float-operated valve 29.
Patent GB-1236403-A (GB)
Title: Improvements relating to a semiconductor resistor
Inventor: FEINBERG IRVING
IPC: H01L27/06
Filed: 1968-05-09
Abstract: 1,236,403. Integrated circuit resistors. INTERNATIONAL BUSINESS MACHINES CORP. 9 May, 1968 [23 May, 1967], No. 46662/70. Divided out of 1,236,401. Heading H1K. The disclosure is identical with that of Specification 1,236,401 from which the present application is divided. The claims are to a resistor comprising a substrate of one conductivity type (say P type) with an elongate low resistivity inclusion of the opposite (N) type in one surface coverisd by a high resistivity N type region surrounded by an isolating ring which extends to the substrate, the region having in its surface a pair of elongate low resistivity N type contact regions disposed near the ends of the aforementioned inclusion with their axes orthogonal to its axis, and having a length exceeding the width of the inclusion at the respective points of crossing.
Patent GB-1449670-A (GB)
Title: Commutators
IPC: H01R43/06
Filed: 1973-10-05
Abstract: 1449670 Making commutators AIRSCREW HOWDEN Ltd 3 Oct 1974 [5 Oct 1973] 46716/73 Heading B3A [Also in Division H2] A method of making a commutator comprises embedding a number of conductive bars 1 in insulating plastics material 3 to form a moulded commutator having at least one annular seat 6 and placing a ring of high tensile material 10 on the or each seat so as to stress the ring in tension and apply a radially inward load on each bar which is greater than the centrifugal force on the bar at maximum running speed. The bars 1 have deep recesses 4 at either end and they may be spaced apart by thin insulating shims, e.g. of mica. Phenolic or other plastics material is moulded in the end recesses 4 to form an annular groove 5. The rings 10, which are of high tensile steel, are heated prior to insertion in the grooves so as to exert a compressive force on cooling. The grooves 5 are subsequently filled by the addition of more insulating material. Preferably the commutator is built around a central steel tube 2. In an alternative embodiment a single ring (10) is located in a recess which extends to about the axial centre of the bars (1), Fig. 2 (not shown). A further alternative embodiment includes a ring (10) embedded in plastics material on ledges (21) of radially extending bars (1), Fig. 3 (not shown). The preload applied by the steel rings to the copper bars is preferably greater than three times the maximum centrifugal load.
Patent GB-1515365-A (GB)
Title: Control system for frying apparatus
IPC: B08B7/00
Filed: 1975-03-07
Abstract: 1515365 Automatic control FRYMASTER CORP 7 March 1975 [17 June 1974] 46834/77 Divided out of 1515364 Heading G3N [Also in Division H2] To pyrolytically clean heating elements 22 of a frying apparatus, power from inputs 80, 81, 82 is cyclically switched on and off by contacts 86 a, b, c, so as to gradually raise the temperature of the heating elements. When the elements reach a predetermined sensed temperature, the heating elements are disconnected from the power supply by opening contacts 84 a, b, c. A coil 88 controls operation of the contacts 84 a, b, c and also 84 d and e. A coil 90 controls operation of the contacts 86 a, b, c. To start operations, switch 96 is pressed to energize coil 88 and thus close contacts 84. On-off switch 56 is then closed to energize coil 90 and thus close contacts 86. With the heating elements 22 in a cooking position in cooking fluid, switch 98 is in the position shown and thermostats 50, 66 and 70 are functional each at a higher temperature and backing up each other in the event of failure. The thermostats control energization of the coils 90 and 88 and thus control the positions of the contacts 86 and 84. On tilting the heating elements out of the cooking fluid to a pyrolytic cleaning position switch 98 moves to position 102, thus by-passing the thermostats 50 and 66 and bringing into circuit a thermal percentage relay switch 106 including a heating resistor 112. Switch 106 cycles between delay position 110 and burn-off position 108, thus de-energizing and energizing coil 90 and opening and closing contacts 86. When a predetermined temperature of the heating elements 22 is reached, thermostat 70 opens, thus de-energizing coil 88 and opening contacts 84. Further heating of the heating elements cannot be re-started until re-set switch 96 has been pressed. Specification 1515364 (in Abridgment Divisions F4, H2 and H5) is referred to.
Patent GB-1158413-A (GB)
Title: An Improved Method of Packaging Meat and Fish
Inventor: KRAFT WILLI
IPC: B65D81/34
Filed: 1966-10-20
Abstract: 1,158,413. Containers. BADISCHE ANILIN- & SODA-FABRIK A.G. 20 Oct., 1966 [21 Oct., 1965], No. 46968/66. Heading B8P. Meat or fish is packaged in a multi part container which is made wholly or partly by expanding and fusing together particulate expandable styrene polymer and whose individual components 1, 2 fit together so closely that the flow of air through the joins is prevented. Projections 6, 8 on a lid 2, which may be of polyethylene, engage in recesses 7, 9 in a receptacle portion 1, the bottom of which may have drain holes in the corners. Grooves 3 in the receptacle 1 and lid 2 are provided to retain the fluids. The containers may be stacked so that the bottom of one container tightly closes the container beneath it, the bottoms being provided with projections or grooves to facilitate stacking.
Patent GB-1152744-A (GB)
Title: Improvements in or relating to the Packaging of Bobbins
Inventor: PHILLIPS DAVID MEREDITH
IPC: B65D77/26
Filed: 1965-11-05
Abstract: 1,152,744. Packaging yarn bobbins. IMPERIAL CHEMICAL INDUSTRIES Ltd. 9 Nov., 1966 [5 Nov., 1965], No. 47011/65. Heading B8C. Prior to bobbins of yarn being inserted in compartments of a container, a paper &c. sheet having an aperture for each compartment smaller than the cross-section of the bobbin and radial slits extending from each aperture, is placed over the compartment mouths. As the bobbins are lowered into the compartments, the flaps formed by the slits act as guides, being pushed into the compartments, by the bobbins.
Patent GB-1298963-A (GB)
Title: Process for preparing adipic acid
Inventor: BRUNIE JEAN CLUADE
IPC: C07C51/23
Filed: 1970-10-02
Abstract: 1298963 Adipic acid RHONE-POULENC SA 2 Oct 1970 [6 Oct 1969] 47076/70 Heading C2C Adipic acid is prepared from a cyclohexane oxidation product obtained by the liquid phase oxidation of cyclohexane with a molecular oxygen-containing gas and without a metal catalyst, by washing the product with water, separating the aqueous phase containing 6- hydroperoxyhexanoic acid and oxidizing the acid with molecular oxygen under pressure. The product from the cyclohexane oxidation contains cyclohexyl hydroperoxide and byproducts including 6 - hydroperoxyhexanoic acid.
Patent GB-1476462-A (GB)
Title: Rotor head assembly for rotary wing aircraft
IPC: B64C27/35
Filed: 1974-10-31
Abstract: 1476462 Helicopter rotor BOEING CO 31 Oct 1974 [15 Nov 1973] 47204/74 Heading B7W A mounting for helicopter rotor blades to a rotor hub comprises a flexible strap 10 connected at each end to a rotor blade and clamped at its mid-point between transversely extending spaced flexible members 40, 42 which are connected by pins 52 to vertically spaced rigid plates on the rotor hub. Each member 40, 42 comprises four strips 46 of cross-plied fibreglass reinforced plastics bonded into X formation with the resulting cavities filled with an epoxychopped fibre material 48 into which pins 52 are embedded, the members being slotted transversely to receive strap 10. Bars 44 may connect the members 40, 42 at their ends if necessary. In an alternative embodiment, Fig. 2, the strap 10 is thickened at positions 28 and clamped between elastomeric pads 30 formed on flanges 26 extending from said rigid rotor plates. An embodiment is described for a four bladed tail rotor.
Patent GB-1156170-A (GB)
Title: Improvements in or relating to Material for use in the Manufacture of Bags
IPC: B29C48/08
Filed: 1966-10-21
Abstract: 1,156,170. Extrusion dies. MINIGRIP (LONDON) Ltd. 21 Oct., 1966 [22 Oct., 1965], No. 47323/66. Headings B5A and B5B. [Also in Division E2] A material for use in the manufacture of a bag comprises a film of plastics material for forming the walls of the bag, having opposite parallel longitudinal edges, integral co-operating fastening elements 12, 13 spaced from and parallel to said longitudinal edges, said fastening elements consisting of a rib element and a groove element adapted to inter-engage with one another, when the film is folded over, grip flanges 19, 20 being formed between the rib and groove elements and the adjacent edge of the film, one of said grip flanges 20 being formed with a longitudinally extending bead 21 to facilitate separation of the flanges, when it is desired to grip the flanges to unfasten the fastening elements. A die for making the material includes an outlet 32 for extruding the film of plastics material in tubular form, an opening 42 adjacent said outlet 32 for forming the bead and a pair of openings adjacent the outlet 32 for forming the fastening elements. The bead opening is either on the same side as the openings for the fastening elements or on the opposite side. The bead is made from a thermo-plastics substance which is different from that of the film material and the die body 28 is provided with a separate and distinct flow channel 40 which conducts from a source the different thermoplastic substance for the bead, the thermoplastic substance for the film material and the fastening elements being conducted through a main channel 29; the material for the fastening elements entering tributory channels 33 from the main channel. In a modification however the fastening elements are made of a material different from that of the film material and for each element a separate channel is provided in the die body for this material. The different material or materials merges with the flow of the material forming the film at the extrusion outlet 32.
Patent GB-1031758-A (GB)
Title: Feeding magazine conveyor device for fast wrapping machines
IPC: B65B35/46
Filed: 1962-12-14
Abstract: 1,031,758. Rotary conveyer. AZIONARIA COSTRUZIONI MACCHINE AUTOMATICHE, ACMA, S.p.A. Dec. 14, 1962 [Dec. 14, 1961], No. 47348/62. Heading B8A. Rotary wheel 2 is furnished with four horizontal magazines 3 and is given a stepwise movement. Each magazine is furnished with a pusher 3c, a pair of opposite magazines having a pusher in common. Caramels are supplied by supplier 1 and are pushed therefrom into a magazine 3 by pusher 1a, whilst the respective pusher 3c is moved inwards to permit the magazine to be filled. At the same time the corresponding pusher head 3c in the opposed magazine is caused to discharge caramels from the latter magazine. Thus each magazine in turn is filled with caramels by pusher la at the same time as the opposed magazine is being discharged, thus economizing in time of operation. Stepwise movement of wheel 2, Fig. la (not shown).-The stepwise movement of wheel 2 is derived from driving gear 18 via chain 17, shaft 15, pawl 13 on element 11, Geneva wheel 9 and chain 7. The intermittent movement of pawl 13 is derived from the continuously rotating shaft 15 via gears 22 and 21, cam 23 and follower 24 which operates periodically to move element 11 lengthwise along shaft 15 to engage the Geneva wheel 9. Operation of pusher head 3c, Fig. 2 (not shown).-Two pusher heads 3c are carried by the common rod 3b. A pusher head is engaged by a pusher 28a carried by lever 28 connected to pivot 31 by lever 29 and operated through rod 32 by cam 33 driven synchronously with cam 23. In this way the pusher head opposite to the supplier 1 is moved backwards to permit the magazine 3 to be filled with caramels whilst at the same time the opposed head 3c is moved forward to discharge its magazine.
Patent GB-1097085-A (GB)
Title: Parallel arithmetic units
IPC: G06F7/505
Filed: 1965-11-11
Abstract: 1,097,085. Digital computers. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 11, 1965 [Dec. 23, 1964], No. 47848/65. Heading G4A. A parallel arithmetic unit comprises a pair of multi-order operand registers 12, 14, Fig. 8, arranged with interconnecting logical circuitry, Figs. 1-7 (not shown) which when responding to cyclically generated ADD or SUBTRACT control signals from pulse drivers 74 or 75 stores the " half-add " or " half-subtract " sum in one register 12 and the " carries " or " borrows " in the other register 14. OR gate 20 receiving inputs as a result of any non-zero digits in the " carries " register 14 inhibits further generation of the control signals and thereby suppresses advance of the data processor to the next sub-step. The separate crcuits for each operation are described with reference to Figs. 1-7 (not shown) whereby the outputs from the various stages provide or control set or reset inputs to the like order stages and the higher carry/borrow stages. The operations described are ADD; SUBTRACT (without complementing); SHIFT LEFT (as carries resulting from partial subtraction from zero); OR; EXCLUSIVE OR and EXCHANGE (between registers 12, 14). Sense amplifiers 72 provide means for loading the registers. The parallel arithmetic is performed by momentary control signals on the parallel registers 12, 14 which are interconnected by logic circuits. In Fig. 1 (not shown) the interconnections comprise AND and OR gates (16), (18) but in the other circuits such as Fig. 2 the binary triggers have set and/or reset D.C. output lines energized by coincident energization of both D.C. and A.C. set and reset input lines.