baber/WOPTO huggingface dataset:
Patent GB-1005065-A (GB)
Title: Sulphonation and sulphation of organic liquids
Inventor: MERRITT RALPH WICKES
IPC: C07B45/02
Filed: 1961-12-05
Abstract: The process of sulphonating or sulphating an organic liquid comprises injecting into the organic liquid a stream of sulphur trioxide vapour in admixture with an inert gas, e.g. air, nitrogen, carbon dioxide, sulphur dioxide, preferably containing at least 2% and not more than 20% sulphur trioxide by volume, linear velocity of the gas stream entering the liquid being at least 500 feet per second, preferably at least 1000 feet per second, the total amount of gas injected being such that the molar ratio of sulphur trioxide to organic liquid is not more than 5% in excess of the stiochiometric ratio-The reaction is preferably carried out a tem. perature not exceeding 140 DEG  F. The gas mixture may be derived from the effluent gas from the manufacture of sulphur trioxide by the contact process.  Preferably, the gas mixture enters the liquid through a nozzle designed to induce parallel orientation in the gas stream at the point of discharge, and is accomplished by the use of simple tubular nozzles.  The process is particularly suitable for the sulphonation of alkyl benzenes containing 9 to 18 carbon atoms in the alkyl group, to produce monosulphonates, or for the sulphation of condensation products of 1 to 5 moles ethylene oxide with one mole of a fatty alcohol containing 8 to 20 carbon atoms in the fatty alcohol molecule, to give sulphates both of which are useful in detergent compositions. The process may be carried out as a single stage batch process or, preferably, in one or more stages using a more concentrated sulphur trioxide/inert gas mixture in the earlier stages and a more dilute mixture in the later stages when the sulphonation or sulphation is approaching completeness.  The multi-stage process can be adapted to a continuous process carried out in a series of reaction zones with the liquid passing continuously from one zone to the next.  Examples are given of the treatment of alkyl benzene and dodecyl polyglycol ether.
Patent GB-1394538-A (GB)
Title: Endless track assembly
IPC: F16C3/02
Filed: 1973-09-17
Abstract: 1394538 Endless-track vehicles CATERPILLAR TRACTOR CO 17 Sept 1973 [20 Sept 1972] 43590/73 Heading B7H [Also in Division E2] An endless track assembly has a plurality of pairs of links 14, 14<SP>1</SP>, connecting adjacent ground-engaging shoes 11, 12 and being interconnected by pivot means comprising a tubular pin 17 mounted in a cylindrical bushing 16 and means forming a plurality of bearing surfaces between pin and bushing and forming a plurality of lubricant-retaining grooves therebetween. The bearing surfaces are formed by diamond shaped knurls (21), Figs. 2, 3 (not shown), formed on the outer surface of the pin or the inner surfaces of the bushing, and forming therebetween helically-extending grooves (20); or the grooves may extend axially and circumferentially. The pin has a passage 22 closed by threaded plugs 23 and charged with lubricant which communicates with the bearing surfaces through radial ports 24. The links 14, 14<SP>1</SP> are secured to the bushing and the pin respectively
Patent GB-911253-A (GB)
Title: Liquid-ring gas pumps
IPC: F04C19/00
Filed: 1959-12-24
Abstract: 911,253. Centrifugal pumps. SIEMEN & HINSCH. Dec. 24, 1959 [Dec. 30, 1958], No. 43807/59. Class 110 (1). A liquid ring gas pump having at least one stage has two separate outlets, in a pressure chamber adjacent the working chamber, which allow separate withdrawal of the gas and liquid from the pressure chamber. Gas is admitted to the casing 2 through an inlet 3 and passes through a suction slot 4 into the working chamber 13. Liquid is admitted at any point on the suction side of the pump or at the hub of the impeller 1. A mixture of liquid and gas passes through a pressure slot 5 into the pressure chamber 6, separated from the suction chamber by a baffle 7. The mixture strikes the walls of the chamber 6 which may have vanes to separate the liquid and gas. The gas leaves the pressure chamber through a pipe 9 and the liquid through a pipe 8 when the pump produces a high vacuum or both leave through the pipe 9 at low vacuum conditions. A valve 10, which may be responsive to the vacuum produced, regulates the liquid flow. Silent running of the pump is obtained by keeping the chamber 6 largely free from liquid at high vacuum conditions and by having a cushion of liquid before the slot 5 at low vacuum. In multi-stage pumps the separate outlets for gas and liquid of one stage may be connected to separate inlets for gas and liquid in the following stage. Alternatively, the prevention of an accumulation of liquid in the pressure chamber may only be necessary on the last stage.
Patent GB-953832-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B69/24
Filed: 1962-11-20
Abstract: 953,832. Clutches; controlling clutches &c. DE 'JONG & DE VLIEGER MACHINEHANDEL N.V. Nov. 20, 1962 [Nov. 20, 1961], No. 43929/62. Headings F2C and F2L. [Also in Division D1J A clutch is provided for coupling or uncoupling the main spindle of a sewing machine and a pulley driven by a motor which is automatically braked on being switched-off, and the arrangement is such that the pulley and spindle are coupled during the starting and normal running of the motor, but are uncoupled after the motor is switched-off and are again coupled, in a particular angular position of said spindle, when the motor is substantially stationary, in order to stop the spindle in said position. The main spindle 2 of a sewing machine 1 has fixed thereto by screws 6 a sleeve 3 having radial ribs 7 fitting loosely in recesses formed in a cylindrical non-conducting member 9 which is journalled on sleeve 3. A pulley 17, coupled to the driving motor which is automatically braked on being switched-off, is rotatable and axially slidable in sleeve 3, and carries a magnetic disc 15 which is clutched to member 9, for driving spindle 2, on energization of a magnetic coil 14 mounted on member 9. The periphery of the latter is provided with three conducting slip rings 20, 21, 22 and a short conducting segment 23 which co-operate with brushes carried by a fixed arm 24. The brushes co-operating with rings 20 and 21 are connected to a rectifier 26, and the brushes cooperating with ring 22 and segment 23 are interconnected. Member 9 also carries a centrifugal switch 11, the moving contact of which shifts at a speed of 100-200 r.p.m., and a micro-switch 12 which is closed when member 9 commences to rotate and over-runs spindle 2. When the driving motor is switched-on, coil coil 14 is energized via ring 22, segment 23 and the contact 32 of switch 11. Immediately member 9 starts to rotate, switch 12 closes to establish a permanent circuit through coil 14. A second circuit is established through contact 37 of switch 11 when the motor speed increases. When the motor is switched-off, switch 12 opens first, and switch 11 disconnects coil 14 to uncouple spindle 2 when the motor slows down. Coil 14 is again energized via the contacts 22, 23 and the motor then being stationary and braked, spindle 2 is also halted. Contact 23 may be positioned to stop the machine with the needle either fully raised or fully lowered. A second contact may be provided, aligned with contact 23 and connected in parallel therewith by a two-way switch, for stopping the machine in alternative positions.
Patent GB-1358827-A (GB)
Title: Process for detecting the presence of human carcinoembryonic antigen material in blood
IPC: B01J47/04
Filed: 1971-06-01
Abstract: 1358827 Determination of human carcinoembryonic antigen material F HOFFMANN - LA ROCHE & CO A G 1 June 1971 [1 June 1970 27 Jan 1971 12 April 1971] 44185/73 Divided out of 1356911 Heading G1B Human carcinoembryonic antigen (CEA) material in blood is detected by a method comprising (a) adding a measured amount of antibody to the CEA material to a solution of a purified perchloric acid extract of blood serum or blood plasma in a buffered solvent; (b) incubating; (c) adding a measured amount of radioactively tagged CEA material; (d) incubating; (e) adding a precipitating agent, for example zirconyl phosphate gel, to precipitate antigen-antibody complexes; (f) measuring the radio-active content of the resulting precipitate. The initial serum or plasma sample may be treated with at most 1.2M perchloric acid and centrifuged, the supernatant then being purified by dialysis. In an example goat antiserum is used in step (a).
Patent GB-1496269-A (GB)
Title: Manufacture of reflectors for antennas
IPC: B29C51/30
Filed: 1975-10-28
Abstract: 1496269 Shaping sheet materials SUMITOMO ELECTRIC INDUSTRIES Ltd 28 Oct 1975 [5 Nov 1974 16 Oct 1974 (2)] 44367/75 Heading B5A [Also in Division B3] A method of making an antenna reflector comprises bending a plastic plate 5 over the convex top of a plurality of members 2 to form a surved shape 3. The members 2 are concentric cylinders. In a second embodiment, Fig. 2 (not shown), the members are discs (8), and in a third embodiment, Fig. 3 (not shown), the members are threaded posts (13). The heights of the members can be adjusted. The plate 5 may be of metal or a synthetic resin. Plate 5 may be heated while being bent.
Patent GB-1473504-A (GB)
Title: Holder for retaining a shanked tool and a tool for use  therewith
IPC: E21C35/19
Filed: 1974-09-10
Abstract: 1473504 Mineral-mining pick holder assemblies; stud-and-socket fastenings AUSTIN HOY & CO Ltd 10 Sept 1974 [21 Sept 1973] 44511/73 Addition to 1308298 Headings E1F and E2B The shanked tool-receiving holders of the referred to Specifications 1308298 and 1373655 are modified to now provide a holder in which the latch member 5 now lies in a recess 3 surrounding the socket 2 and is resiliently biassed at an acute angle with respect to the working direction Y of a tool, ,when the shank of the tool has been entered into the socket, so that a part 6a, 6b of the member 5 will be at least partly located in the socket to engage two faces of the shank to retain the shank in the socket. Preferably the acute angle is about 30‹, the socket is rectangular in cross section and arranged so that the major cross sectional dimension is aligned with said working direction, the latch member engage an end face, preferably the rear end face, and a side face of the shank when it is located in the socket, and means 7 resiliently biassing the latch member is disposed between a part of the member opposite to that part of the member engaging the shank and the holder, which may have a circular cross section.
Patent GB-1246975-A (GB)
Title: A process for dyeing natural or synthetic fibres in the form of yarn
Inventor: LIBRECHT PIERRE
IPC: D06B5/20
Filed: 1968-09-19
Abstract: 1,246,975. Dyeing yarn. S. A. TEINTURERIE DES FRANCS AND P: L. LIBBRECHT. 19 Sept., 1968 [26 Sept., 1967], No. 44654/68. Heading D1L. A plurality of coreless sleeves, each formed by loosely winding spun yarn, are loaded without compression on to at least one perforated hollow holder 4 which is closed by a conical cap 25 and is mounted within a cylindrical dyeing chamber (Figs. 1 and 5) adapted to be used under pressure and at high temperature, the open end of the holder forming the dyeing liquid inlet or outlet of the chamber. The sleeves are supported at at each end by perforated discs 18 and 22 and externally by an elastic net. Disc 22 (which is removed for loading) is held in place by a pin 23 and engagement of rods 19 (attached to disc 18) with notches (21, Fig. 4) in disc 22. The apertures of the holder increase in diameter towards cap 25. The liquid is recycled externally of the chamber by means of a circulating pump. Two or more tanks may be included, in a single circuit with valves to permit at least one tank to be isolated (Figs. 6 and 7).
Patent GB-1145186-A (GB)
Title: Chemicalsensitisers
Inventor: HUECKSTAEDT HARALD
IPC: G03C1/043
Filed: 1966-10-06
Abstract: 1,145,186. Polyalkylene oxide quaternary derivatives. AGFA-GEVAERT A.G. 6 Oct., 1966 [23 Oct., 1965], No. 44746/66. Heading C3R. [Also in Division G2] Quaternary derivatives of polyalkylene oxides used as sensitizers in photography (see Divisions G2-G3) have 2 to 100 repeating units of the general formula wherein at least one of R and Z denotes a divalent polyalkylene oxide group, any remaining being an organic group, Y is C 1-18  alkyl or substituted alkyl, and X is an anion, the products having molecular weights greater than 2000. In an example, a polymer containing an average of 2À7 repeating units of the formula is prepared by reacting ethylene dichloride with diethanolamine and then acrylonitrile and treating the reaction product with polyethylene oxide bis-tosylate (270 ethylene oxide units).
Patent GB-1059426-A (GB)
Title: Foamed olefin copolymer blends
IPC: C08J9/00
Filed: 1964-11-06
Abstract: Flexible cellular bodies are produced from thermoplastic aliphatic olefin polymer blends by forming a mixture of an intimate physical blend of an aliphatic olefin polymer having a relative crystallinity of at least 30% and from 5 to 50% based on the weight of the polymer blend of a substantially saturated mono-olefin elastomer which has a glass transition temperature below room temperature and is essentially amorphous at room temperature with an organic foaming agent, subjecting the mixture to a temperature of 70 DEG  to 180 DEG C. and a pressure of 300 to 1500 p.s.i.g. and passing the mixture into a zone of lower pressure. Suitable crystalline olefin polymers are polyethylene, or copolymers of ethylene with vinyl acetate or ethyl acrylate. Suitable elastomers are copolymers isobutylene and isoprene, which may be chlorinated, a copolymer of ethylene and propylene, polyisobutylene, or chlorosulphonated polyethylene.  The expansion may suitably be performed by extrusion.
Patent GB-1471250-A (GB)
Title: Furnace hoods
IPC: F27D99/00
Filed: 1975-10-31
Abstract: 1471250 Furnace hoods HAWLEY MFG CORP 31 Oct 1975 45492/75 Heading F4X A furnace hood 13 comprises two sections 17 and 19 adapted to be swung outwardly about hinges 18 and 20 to define a lateral entry 21 to the interior of the hood for the passage of a charging bucket 48 when the furnace 10 is to be charged, and spring or damper means associated with a movable section 25 of the roof 15 of the hood and positioned to absorb any lateral momentum of the bucket and correctly locate the bucket above the mouth 12 of the furnace. The reciprocably movable roof section 25 carries a depending skirt 26 to which bumper pads 27, 28 presenting vertical faces 29, 30 are secured. A subframe (31, Fig. 2) including vertical posts 38 and 39 is disposed behind the skirt 26, and housings 40 and 44 providing guideways for bumper pins 41 and 45 formed with bumper heads 42 and 46 are secured to the posts 38 and 39. The bumper heads 42 and 46 are aligned with the pad surfaces 29 and 30 and a coiled compression spring 43 or 47 is located between each bumper head and the associated guide housing. The hood roof 15 is also formed with an opening sized and shaped to conform to the charging bucket 48, said opening being closed during normal operation of the furnace by a movable cover 51 which is linked via a pin 53 to the furnace lid (not shown) so that the cover 51 and lid move together about the axis of a post 50; the roof 15 is formed with an arcuate slot 54 to accommodate movement of the pin 53. The interior of the hood 13 is connected to a source of vacuum by a conduit 14.
Patent GB-1392520-A (GB)
Title: Separation of tertiary chelating polyamines
IPC: C07C67/00
Filed: 1972-10-03
Abstract: 1392520 N-permethylated polyamines EXXON RESEARCH & ENG CO 3 Oct 1972 [26 Nov 1971] 45541/72 Heading C2C Mixtures of tertiary N-peralkylated polyalkylene polyamines having 2-6 N atoms separated by at least 2 C atoms are separated by adding to the mixture an inorganic metal salt of suitable lattice energy, the metal being Na, K, Mg, Ca, Sr, Fe, Zn, Cd or Hg so as to preferentially form a complex of one tertiary amine in the mixture, separating the complex and leaving an effluent, successively repeating the steps above as often as desired to obtain the desired amine in purified form in the complex or in the effluent, and recovering the desired amine by destabilization of the complex or recovering the desired amine from the effluent.
Patent GB-1397583-A (GB)
Title: Cast pneumatic tyre and a method of producing said tyre
IPC: B29C67/00
Filed: 1972-10-04
Abstract: 1397583 Tyre moulding BRIDGESTONE TIRE KK 4 Oct 1972 [7 Oct 1971] 45725/72 Heading B5A [Also in Division B7] A pneumatic tyre 1 comprises an annular portion 4 cast or moulded from a material having a Shore A hardness of 50-75 degrees and forming the whole, as shown in Fig. 1, or part, as shown in Fig. 5, of the tyre tread, and a portion 3 bonded to the portion 4 and forming the remainder of the tyre, the portion 3 being cast from a material which is different to that of the portion 4 and which has a modulus of elasticity at 50% elongation of 140-650 Kg/cm<SP>2</SP>, the tyre containing as reinforcements except for a pair of bead wires 2, 2<SP>1</SP>. The portion 4 has grooves 5 which extend inwardly from its ground contacting surface to leave a thickness of material of 10-40% of the groove depth between the groove bases and the junction between the portions 3, 4. The material of the portion 4 may be styrene-butadiene or natural rubber, and that of the portion 3 an ether type polyurethane. The tyre may be manufactured using the mould apparatus shown in Figs. 11 and 13 whereby firstly the portion 4 is made by casting curable material into a cavity formed by positioning an annular core 7 in a space defined by side parts 9, 9<SP>1</SP>, an outer split ring 6, 6<SP>1</SP>, and an inner split ring 8, 81 of the apparatus; then, when the portion 4 is partially cured, the core 7 is replaced by a core 10 which defines with the parts 9, 9<SP>1</SP> and rings 6, 6<SP>1</SP> and 8, 8<SP>1</SP> a cavity into which curable material is cast to form the portion 3; and finally curing of the two portions 3, 4 is completed during which process they become chemically bonded together. The mould cores 7, 10 may be closed hollow structures as shown in Figs. 11 and 13, or may be hollow structures as shown in Figs. 11 and 13, or may be hollow structures open at their inner periphery such that they have a pair of spaced apart bead portions provided with bead cores 14, 14<SP>1</SP> as shown in Fig. 14B. In both cases the cores may be pressurized with gas and may contain a reinforcing layer, e.g. 13<SP>1</SP>, or fibre cords or canvas. The above described apparatus and method may be modified such that the portion 3 is cast before the portion 4, in which case the core 7 is not needed, but another mould part is used to set the radially outer limits of the portion 3 during its casting. In a further method of producing the tyre a portion 4 in partially cured form is produced by moulding, e.g. from extruded or unvulcanized rubber tread stock, and is then placed in a mould apparatus in which an already cast and partially cured portion 3 is contained or in which the portion 3 is then cast.
Patent GB-1413995-A (GB)
Title: Process for producing a polymer suitable for use in oil and water proof compositions
IPC: D06M15/277
Filed: 1972-10-05
Abstract: 1413995 Polymers of esters of fluorinated alcohols PECHINEY UGINE KUHLMANN 5 Oct 1972 [8 Oct 1971] 45991/72 Headings C3P and C3G A polymer suitable for use in water-resistant and oil-resistant compositions is produced by polymerizing or copolymerizing in solution or emulsion in the presence of a non-fluorinated acrylic resin one or more acrylic or methacrylic esters of fluorinated alcohols of the general formula in which n is 1-20, R is H, C 1-10  alkyl or C 5-12  cycloalkyl, aryl optionally substituted with C 1-6  alkyl or -R<SP>1</SP>-OH, where R<SP>1</SP> is C 2-4  alkylene, the resin constituting from 20 to 80% by weight of the said esters of fluorinated alcohols and resin. It is believed that some molecules formed are grafted to the non-fluorinated resin. In examples n is 6 or 8 and R is CH 3 , the resin being heptyl acrylate-N-methylolacrylate, butylacrylate - N - methylol acrylamide or heptyl acrylate - hydroxyethyl methacrylate copolymer, polymerization being carried out in solution in methyl isobutyl ketone using t-butyl hydroperoxide as catalysts. Comparative examples describe the production of copolymer of the C 8  ester, heptyl acrylate and N-methylolacrylamide in methyl ethyl ketone and of a copolymer of the C 8  ester and heptyl acrylate in the presence of a heptyl acrylate-N-methylol acrylamide copolymer in aqueous dispersion using potassium persulphate as initiator and dodecyl benzene sodium sulphonate as dispersion agent. Solutions or emulsions of the resulting products optionally with other additives may be used to treat fabrics.
Patent GB-1480882-A (GB)
Title: Target game missile
IPC: A63B43/00
Filed: 1975-01-02
Abstract: 1480882 Target game missiles J H LEMELSON and A M ELFMAN 2 Jan 1975 [24 Jan 1974 20 May 1974] 45999/76 Divided out of 1480881 Headings A6H and A6S Disclosure same as that of the missile of Figs. 1 to 3 of Parent Specification 1480881, but the claims differ, being directed primarily to a misile comprising a lightweight substantially spherical hollow body having a plurality of indentations of substantially uniform depth in which are received a plurality of sheet-like sections each having a plurality of filamentary hook-like projections that extend outwardly of the indentaions beyond the periphery of the body.
Patent GB-1167715-A (GB)
Title: Production of Alpha,Omega-Diaminoalkanes
IPC: C07C17/154
Filed: 1966-10-14
Abstract: 1,167,715. Diallylic hydrocarbons. EL PASO PRODUCTS CO. 14 Oct., 1966 [26 Oct., 1965 (2)], No. 46090/66. Heading C5E. [Also in Division C2] Diallylic hydrocarbons are produced by condensation of an allylic halide with an olefin by pyrolysis above 900‹ F. 1,5-Hexadiene is produced from allyl chloride and propylene.
Patent GB-1287758-A (GB)
Title: Calcined alkali metal aluminium acid orthophosphate
Inventor: KIRKPATRICK WILLIAM JOHN
IPC: C01B25/45
Filed: 1969-09-19
Abstract: 1287758 Dentifrice formulations STAUFFER CHEMICAL CO 19 Sept 1969 46294/69 Heading A5B [Also in Division Cl] In a dentifrice formulation comprising a polishing agent, humectant, water, binder, preservative, detergent, flavouring, sweetener, and therapeutic agent, the polishing agent is a complex alkali metal aluminium acid orthophosphate. Reference has been directed by the Comptroller to Specifications 988482 1033022 and 1033023.
Patent GB-1516785-A (GB)
Title: Method and apparatus for testing the quality of cast iron pieces especially spheroidal cast-iron pieces
IPC: G01N29/12
Filed: 1976-11-08
Abstract: 1516785 Testing quality of cast iron pieces FIAT SpA 8 Nov 1976 [25 Nov 1975]  46374/76 Heading G1G The quality of spheroidized cast iron pieces, e.g. brake drums or crank-shafts, is tested by oscillating at resonance a system formed by a piece 11 to be tested mechanically coupled to a reference piece 9 having the same form and geometry as the piece 11, providing signals representing the frequency and amplitude of the oscillating system, and comparing these signals with reference signals to indicate whether the test piece is acceptable or not. Means may be provided for automatically connecting test pieces to the support and for automatically disconnecting them.
Patent GB-1476320-A (GB)
Title: Carding apparatus
IPC: D01G15/28
Filed: 1974-05-10
Abstract: 1476320 Carding plate assembly ENGLISH CARD CLOTHING CO Ltd 1 May 1975 [10 May 1974 25 Oct 1974] 46375/74 and 46376/74 Heading D1N A stationary carding plate assembly comprises a support frame 64, 66 which extends over the swift of the carding machine and from which a carding plate or plates 54 are suspended. The frame is composed of tubular members supported by the bends 72. Each point of suspension from the tubes is adjustable by means of a screw 108 which opposes a spring 106, this allows adjustment of the clearance between the card clothing and the swift. Specifications 1474888 and 1476319 are referred to.