baber/WOPTO huggingface dataset:
Patent GB-1535992-A (GB)
Title: Aqueous anionic surfactant systems
IPC: E21B43/20
Filed: 1976-02-26
Abstract: 1535992 Oil recovery &c SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 26 Feb 1976 [26 March 1975] 7631/76 Heading E1F An aqueous anionic surfactant system having a relatively high tolerance to multivalent cations and being suitable for injecting into an oil-containing subsurface location comprises an anionic surfactant, e.g. tall oil pitch soaps, napthenic acid soaps and/or petroleum sulphonates, and a monomeric aromatic ether polysulphonate containing one ether group attached to at least one aromatic radical and from 1.8 to 2 sulphonate groups per molecule. The surfactant system has a surface tension between it and the oil of less than 0.1 dyne/cm and may contain an alkoxy-alcohol sulphate surfactant to effect oil displacement at a temperature of less than 65C. The surfactant system may also contain electrolytes, e.g. sodium or potassium chloride; thickeners, e.g. carboxymethyl cellulose, a polyethylene oxide, a hydroxyethyl cellulose, a partially hydrolyzed polyacrylamide, a copolymer of acrylamide and acrylic acid, or a polysaccharide; and emulsion modifiers, e.g. mono- or polyamines, polyethoxylated amines, amides, sulphonamides of water soluble sulphonic acids, water soluble-oil insoluble petroleum sulphonates, ketones or alcohols. In addition to oil displacement, the surfactant system is used to form foams which may be applied when injecting steam through a well while maintaining a column of foam in the borehole to keep the steam from rising above a selected depth, when injecting a steam foam in order to plug a thief zone within a reservoir, and in borehole cleaning.
Patent GB-1125631-A (GB)
Title: Prevention of cold flow of polymers in conjugated dienes
IPC: C08C19/44
Filed: 1966-02-22
Abstract: 1,125,631. Diene polymers. PHILLIPS PETROLEUM CO. 22 Feb., 1966 [23 Feb., 1965], No. 7730/66. Heading C3P. Diene polymers are made by polymerizing one or more conjugated dienes with or without one or more copolymerizable monovinyl aromatic compounds in the presence of a catalyst of the formula RM x , where R is an aliphatic, cyclo-aliphatic, or aromatic hydrocarbon radical, M is an alkali metal atom and x is an integer of 1 to 4, adding prior to inactivation of the catalyst a tin compound of the formula R x SnZy, where R is a hydrocarbyl radical, Z is halogen, oxygen, sulphur or various specified radicals containing oxygen or sulphur, x is 0, 1, or 2, y is 2, 3, or 4, and the sum of x+y is 4, deactivating the catalyst and recovering the polymer. The polymers after recovery may be mixed with a mildly acidic compound such as stearic acid or stannic acid. Specified dienes are 1,3-butadiene, isoprene, piperylene, and 2,3 - dimethyl 1,3 - butadiene. Specified aromatic compounds are styrene, 3-methyl. styrene, 3,5-diethylstyrene, 4-n-propylstyrene, and 1- and 2-vinylnaphthalene. The Specification contains a long list of suitable tin compounds. The polymerization is carried out in a conventional manner. The exemplified catalyst is n-butyllithium. Exemplified polymers are polybutadiene and block copolymers of butadiene and styrene. The polymers may be vulcanized and the Specification gives details of processing conditions and physical properties of the cured polymers.
Patent GB-289370-A (GB)
Title: Improvements in the production of nitrate of lime
IPC: C01F11/36
Filed: 1928-03-13
Abstract: 289,370. Appareils et Evaporateurs Kestner. May 6, 1927, [Convention date]. Addition to 279,037. Calcium nitrate is prepared by the action of nitric acid on calcium carbonate and the gas released forced in the direction of motion of the nitric acid as in the parent Specification, and blocks unaffected by nitric acid are added to the limestone to maintain the resistance thereof to the liquid and gas substantially constant. The blocks 11 are preferably sandstone spheres adapted to form channels by being hollowed or pierced. The grating 2 is inclined so that the blocks may be withdrawn at a door 13 and reused.
Patent GB-144825-A (GB)
Title: Improved means for use in facilitating putting outer covers of pneumatic tyres in position upon wheel rims, and the removal of such tyres therefrom
IPC: B60C25/02
Filed: 1919-03-28
Abstract: 144,825. Thomas, A. E. March 28, 1919. Tyre covers, tools for removing and replacing. -Relates to tools for manipulating tyres of the type comprising a hook portion to engage the wheel rim, and a pressure-piece. In the form shown in Fig. 3, for removing tyres, the hook a has a screwed shank a<1> on which is operated a piece a<2> to move the pressure-piece B forward to disengage the tyre from the rims. The pressurepiece comprises arms b<1> with extensions b<2> which may conform to the curve of the rim, and which extend a .substantial distance each side of the hook. In the form shown in Fig. 4, for replacing a tyre, the hook member C is bent at right-angles at c' to receive the screwed shank d of the pressure-piece D.
Patent GB-1409831-A (GB)
Title: Dichromatic thermo-sensitive paper
IPC: B41M5/40
Filed: 1973-02-16
Abstract: 1409831 Thermographic materials MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 16 Feb 1973 [17 Feb 1972 31 July 1972 20 Oct 1972 (3)] 7846/73 Heading G2C A thermographic material comprises a paper support coated with (a) a layer of a binder in which is dispersed particles of compounds which on heating react to give a first colour, (b) a thermally fusible layer which can dilute the colour in layer (a) and (c) a layer of a binder in which is dispersed particles of compounds which on heating react to give a second colour different from that of layer (a); the quantity Q 1  and Q 3 , being the heat required to form the first and second colours and Q2, being the heat to fuse layer (b), being in the relationship of Q 1  < Q 2  # Q 3 . Preferred colour forming compounds for layers (a) and (c) are leuco bases of triflenylmethanes or substituted fluorous of formula: wherein R x , Ry and R z  are H, hydroxyl, alkoxy, halogen, alkyl, aryl, nitro, amino, mono- or dialkylamino, acetamino or alkoxy- or cyano-alkoxy groups or 9-p-nitramino-3, 6-diethylamino-9- (xanthenoyl)-6-benzoic acid lactam admixed with phenols or organic acids. The layers may also contain acetamide, stearamide, phthalonitride, m-nitroaniline or beta-naphthylamine which on heating melt and dissolve one of the compounds and thus lower temperature of colour formation. The interlayer (b) may contain one of the above fusible compounds or a phenol or organic acid in a binder. The material may also contain talc, clay, calcium carbonate, zinc oxide or titanium oxide and generally red and blue images are produced with the first coloured image surrounding the second due to fusible layer (b).
Patent GB-839667-A (GB)
Title: Process for the vulcanisation of rubber
IPC: C08K5/46
Filed: 1958-03-11
Abstract: The Specification comprises compounds of the general formula <FORM:0839667/IV (b)/1> in which R1 and R2, which may be the same or different, represent cycloalkyl radicals with 5 to 7 ring carbon atoms which, if desired, may be substituted and R3, R4, R5 and R6 represent either hydrogen atoms, or R3 and R6 together represent an additional bond between the carbon atoms carrying the substituents R4 and R5, and R4 and R5 represent alkyl, aryl, carboxyl or carboxy-alkyl groups.  These sulphenamides can be prepared by the reaction of a dicycloalkyl amine with 2-mercapto-thiazoline, 2 - mercapto - thiazole, 4.5 - dimethyl - 2 - mercaptothiazole, 4 - ethyl - 2 - mercaptothiazole, 4 - phenyl - 2 - mercaptothiazole, 5 - carboxy-4 - methyl - 2 - mercaptothiazole or a 5-carbalkoxy - 4 - methyl mercaptothiazole in the presence of an oxidizing agent, e.g. chloride of lime in alcohol.  German Specification 615,580 is referred to.ALSO:In order to avoid premature vulcanization in rubber mixes, the accelerator employed is a compound of formula <FORM:0839667/IV (a)/1> in which R1 and R2, which may be the same or different, represent cycloalkyl radicals with 5 to 7 ring carbon atoms which, if desired, may be substituted and R3, R4, R5 and R6 represen either hydrogen atoms, or R3 and R6 together represent an additional bond between the carbon atoms carrying the substituents R4 and R5, and R4 and R5 represent alkyl, aryl, carboxyl or carboxy-alkyl groups.  The rubbers referred to are: natural rubber; polymers of conjugated diolefines such as butadiene, dimethyl butadiene and isoprene, and copolymers of such conjugated diolefines with styrene, a -methyl styrene, acrylonitrile, methacrylonitrile, an acrylate or methacrylate; copolymers of isobutylene with small quantities of conjugated diolefines; polymers of chlorobutadiene, and its copolymers with mono- and di-olefines and other polymerizable vinyl compounds. German Specification 615,580 is referred to.
Patent GB-1419371-A (GB)
Title: Combined shipping loading and delivery carrier for internally threaded fasteners
IPC: B25B21/00
Filed: 1972-12-28
Abstract: 1419371 Fastener feed apparatus KAYNAR MFG CO Inc 28 Dec 1972 [30 Dec 1971] 7881/75 Divided out of 1401019 Heading B3N The subject matter of the Specification is identical with that of Specification 1,401,019. The claims however, are directed to a combined shipping, loading and delivery carrier comprising a shank 127 having a head 128 secured, and may be integral, therewith and, a guide tip 126 detachably secured therewith.
Patent GB-195857-A (GB)
Title: Improvements relating to mechanism for stretching fibres
IPC: D01H5/56
Filed: 1922-03-18
Abstract: 195,857. Serra y Sio, J. March 18, 1922. Rollers and roller heads.-Relates to a roller drawing head in which the lower small intermediate cylinder 11 bears upon a longitudinally corrugated cylinder 8 for the whole of its length and is frictionally driven thereby. The intermediate cylinders 11, 16 may be formed in sections extending between adjacent supports.
Patent GB-1080164-A (GB)
Title: Improvements in or relating to agricultural mowers
Inventor: BAMFORD RUPERT CYRIL
IPC: A01D34/06
Filed: 1963-02-28
Abstract: 1,080,164. Reaping machines. BAMFORDS Ltd. Feb. 28, 1964 [Feb. 28, 1963], No. 7993/63. Heading A1F. Relates to an agricultural mower of the kind wherein the mower frame is mountable on tractor hitch-links and the reciprocating knife-bar is driven from the tractor rear power-take-off, the driving means comprising a main driving shaft coupled through a universal joint to the take-off and carrying a driving wheel connected (e.g. by a belt) to a knife-bar-driving shaft. According to the invention, the mower frame comprises two parts, one part 9 being a main frame mounted on the hitch-linkage and the other part a subframe carrying the cutter bar and the main driving shaft 19, the sub-frame being transversely adjustable on the main frame so that the position of the inner mowershoe relatively to the tractor may be altered without affecting the relative spacing between the two driving shafts. The main frame 9 is rectangular, with an upper beam 10 carrying a hitch-point 12, sidepieces 6, 7 carrying hitch-points 4, 5 and a lower beam 11 along which the subframe is adjustable. The sub-frame comprises the drag-bar 16 terminating at one end in a hinge-bracket 17 which receives the inner shoe of the cutter-bar (Fig. 1, not shown) and at the other end in a bearing 15 which carries the knife-bar-driving shaft 23 and is bolted to a bracket 14 forming part of the beam 11. A further bracket 18 secured to the bar 16 adjustably supports a bearing carrying the main driving shaft 19, the shafts 19, 23 having pulleys entrained by a belt (not shown). In Fig. 5, the bearing 15 is laterally adjustable by passing its securing-bolt 28 through either pair of two pairs of alternative holes 26, 27 in the bracket 14, but in a modification (Fig. 6, not shown) only one pair of aligned holes is provided, the bearing being turned over, to adjust it, so that the bearing sleeve 29 is on the opposite lateral side of the securing bolt 28.
Patent GB-939678-A (GB)
Title: Improvements in or relating to moisture testing apparatus
Inventor: STANWORTH LAWRENCE
IPC: G01N7/18
Filed: 1960-03-08
Abstract: 939,678. Hygrometric apparatus. THOMAS ASHWORTH & CO. Ltd. Feb. 6, 1961 [March 8, 1960], No. 8101/60. Class 97 (3). In apparatus for testing the moisture content of a substance by mixing it in a sealed pressure chamber 10 with powdered calcium carbide or other material which will generate a gas in the presence of moisture, the conduit 18 leading to the pressure gauge 16 protrudes on the inside wall of the chamber 10 so as to minimize the danger of liquids or solids blocking the passageway to the gauge 16. Specification 386,767 is referred to.
Patent GB-258174-A (GB)
Title: Improvements relating to fabric belting
IPC: F16G1/28
Filed: 1926-03-25
Abstract: 258,174. Alexander, F. W., and Lewis & Tylor, Ltd. March 25, 1926. Flat endless belt conveyers.- Fabric belting for conveyer belts is provided on one or both sides with a covering B of rubber or rubber compound of relatively large and uniform thickness which is formed on the surface next to the fabric A with projections or corrugations C impressed into the surface of the fabric and forming on the exterior surface corresponding flutings or grooves. The flutings may be longitudinal or transverse. When such belting isused for conveying hot ashes or other substances at a high temperature the rubber protects the fabric from damage.
Patent GB-1245238-A (GB)
Title: New isoxazolyl derivatives and compositions containing them
Inventor: GHOSH RANAJIT
IPC: C07D261/12
Filed: 1967-12-04
Abstract: 1,245,238. Pesticides containing isoxazolyl carbamates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 19 Nov., 1968 [4 Dec., 1967; 20 Feb., 1968], Nos. 55058/67 and 8259/68. Heading A5E. [Also in Division C2] Pesticidal and fungicidal compositions comprise as active ingredient an isoxazolyl carbamate of the formula in which X and Y are oxygen or sulphur; R 1  and R 2  are hydrocarbon groups, or R 1  and R 2  together with the adjacent nitrogen form a heterocyclic ring, or in formula I and R 1  is hydrogen and R 2  a hydrocarbon group; and R 3  and R 4  are hydrogen or hydrocarbon groups, or together form a homocyclic or heterocyclic bridging group. The carbamates are effective as fungicides and against plant insect pests where they may be used as systemic pesticides. The compositions may take the conventional forms and include the usual adjuvants. Examples 16-29 relate to these compositions
Patent GB-410593-A (GB)
Title: Improvements in and connected with electric hand torches
IPC: F21L4/00
Filed: 1933-03-18
Abstract: 410,593. Focusing and switching electric battery lamps. HASSID, M. A., 19, Godfrey Street, Chelsea, London. March 18, 1933, No. 8262. [Classes 39 (ii) and 75 (iv).] In an electric battery lamp in which a slidable member for altering the focus of the lamp also operates a circuit closing device, the latter comprises a pair of relatively slidable contacts, one of which is a strip having an inclined surface and passing through the other, the arrangement being such that at certain relative positions of the contacts the strip clears the other contact but at other positions said inclined surface engages it. In the form shown, a spring 16 presses the top pole of a battery 15 up against a conducting strip 18 which extends across the lower face of a disc 17 forming the base of a cup-shaped pressing 17<a> fixed in the casing 2, one end of the strip 18 being bent upwardly to form a longitudinal contact strip 1. The latter is pressed along its centre line into the form of a shallow channel 1<a> to strengthen it and to give it the necessary inclination, and it passes through an aperture 3 in an insulating plate 4. A notch 9 in this plate receives one end of a contact strip 7 which extends across the lower face of the plate and passes through the aperture 3, a central opening 8 in the plate allowing the strip 7 to contact with the centre contact of a bulb 10 in a socket 5. This socket is carried by a conducting strip 12 which extends across the upper face of the plate 4 at right-angles to the strip 7 and is bent so as to extend along the inside of the casing 2 into sliding engagement with a conducting strip 13 extending to the bottom cap 14. The strip 12 carries a rivet, pin, or screw 19 slidable in a slot 20 in the casing and fixed to a finger piece 6 which slides in a guide 21.
Patent GB-1101741-A (GB)
Title: Photographic camera
Inventor: PARISH ROY ALFRED
IPC: G03B17/42
Filed: 1964-02-28
Abstract: 1,101,741. Photographic cameras. KODAK Ltd. Feb. 26, 1965 [Feb. 28, 1964], No. 8337 / 64. Heading G2A. A photographic camera has a film winding shaft 13 having a cam 14 which engages an arm 17 of a shutter setting lever whereby the shutter is set as the film is wound on. The shutter setting member is moved by the cam about pivot 18 against a biasing spring 19 until its arm 20 latches behind a ramp 22. A lug 23 of the arm 20 pivots a shutter driving member 25 which has a lug 32 arranged to latch behind a ramp 33 on a shutter release lever 34. In this position a striker arm 31 of the lever 25 has moved over a tongue 35 of a pivoted shutter blade 36 whereby, upon release of the lug 32 by movement of the ramp 33 by pressure on the shutter release 37, the arm 31 operates the shutter. Return movement of the lever 25 raises the arm 20 of the shutter setting lever by means of the cam 43 to release it from the latch.
Patent GB-546381-A (GB)
Title: Improvements in or relating to socketed screws
IPC: F16B23/00
Filed: 1940-05-09
Abstract: 546,381. Wood-screws &c. HOLO-KROME SCREW CORPORATION. May 9, 1940, No. 8401. Convention date, May 26, 1939. Addition to 542,524. [Class 89 (ii)] [Also in Group XXIII] Screws with sockets for receiving a driver have surfaces adjacent the bottom of the socket for engaging the driver with a wedging action. The sockets have a number of radial flutes 3, Fig. 1, with projections 5 between them. The bottoms 4 of the flutes and the tips of the projections are convex. The driver 6, Fig. 8, engages the projections at the bottom only. A modified driver engages the surfaces 8 at the bottom only.
Patent GB-887707-A (GB)
Title: Process for preparing high molecular weight polymers of ?-olefins
IPC: C08F36/02
Filed: 1958-03-17
Abstract: High molecular weight polymers of a -olefins having at least three carbon atoms, which olefins satisfy the general formula R-CH = CH2 (where R is an alkyl, cycloalkyl, cycloalkenyl or aryl group), the polymers being linear, essentially unbranched, heat-to-tail polymers are produced using under substantially anhydrous and oxygen-free conditions a catalyst prepared by contacting a crystalline compound of a metal of Group IVa, Va or VIa in which the metal has a valency less than four and which compound is substantially insoluble in the polymerization medium with a metal alkyl compound of aluminium or a metal of Group II at a pressure of from 1 to 150 atmospheres and at a temperature of from 50 DEG  to 150 DEG C. in the presence of a hydrocarbon solvent and in which process the monomer, a suspension of the catalyst and the hydrocarbon solvent are continuously fed in predetermined constant proportions to a reactor or two or more reactors connected in series, the formed polymer being continuously discharged and the solvent separated therefrom, said separated solvent and any unreacted monomer being recycled to said reactor or reactors.  The monomer may be propylene, the solvent heptane, and the catalyst may be derived from titanium trichloride and aluminium triethyl which are previously mixed.  Apparatus for carrying out the above continuous process is described and in one form this comprises a second reaction vessel to which further monomer is added to exhaust any remaining active catalyst.
Patent GB-1447725-A (GB)
Title: Valves
IPC: F16K1/46
Filed: 1974-02-25
Abstract: 1447725 Valves P LAWS 20 Jan 1975 [25 Feb 1974] 8495/74 Heading F2V One of a sealing pair of members in a valve carries a ring sealing element 3 in an annular groove 4 the radially inner and outer surfaces of which are conical and parallel with the greatest diameter of the inner surface larger than the inner diameter of the sealing element. The sealing element may be carried by a disc 2 to engage on a seat face 1a and the axial length of the disc may be less over the annulus outward of the groove so that the sealing element projects thereof by the distance X.
Patent GB-214070-A (GB)
Title: Improvements in or relating to potato cutting or chipping machines
IPC: B26D3/18
Filed: 1923-03-26
Abstract: 214,070. Wilkinson, A. E. March 26, 1923. Cutting vegetables.-A potato-cutting machine of the kind having a hand-lever operating a plunger moving on a vertical guide has a central web 8 mounted on a base 2 and supporting a pair of guide rods 15 on which moves a plunger carrier 16 pivoted to a bent handle 35, the lower end of the handle being bifurcated and connected to links 45 and a spring 11. The pivot 36 passes through projections 24 on the'carrier 16 between which the handle 35 lies. The plunger 22 is secured to the carrier 16 by means of a lug 40 and screw 39, and the knife-frame 31 is held between lugs 32 by a cover 33 that fits beneath a projection 42 and is secured by a screw 34.
Patent GB-512912-A (GB)
Title: Improvements in or relating to devices for subdividing masses of butter, margarine and like plastic material into blocks
IPC: A01J21/02
Filed: 1938-03-19
Abstract: 512,912. Cutting butter &c. BROWN, A. March 19, 1938, No. 8535. [Class 87 (ii)] A device for dividing a mass of butter or like plastic material into slabs comprises a framework 1 adapted to accommodate the butter within it, a horizontal frame 13 carrying a series of cutting wires or blades 41 adapted to subdivide'the butter, means for traversing the frame 13 vertically in the framework 1, and an additional wire 47 adapted to be traversed across the frame 13 to sever the butter liorizontally. The framework 1 is formed of angle bars with one bottom end omitted so that the framework may be lowered over the butter mass or moved sideways or alternatively the butter may be slid into the framework on a slide. The frame 13 is also formed of angle bars which are supported by nuts 22 on lead screws 18 geared together at the bottom so as to be simultaneously operated by a handle 30 to move the frame 13 vertically. The frame 13 has a rectangular frame 32 bolted to its underside which carries two parallel series of cutting wires 41 at right angles to one another. The movable wire 47 is situated about an inch above the fixed wires and is stretched between blocks 48, 49 which are traversed laterally by lead screws 52, 53 actuated simultaneously by a handle 31. In use the frame 13 is first lowered a certain distance to cause the wires 41 to penetrate the butter and the wire 47 is then traversed to cut off the slabs thus produced. In a modification, the framework 1 and the frame 13 are of tubular construction and-the various lead screws are housed in the tubular frames. The wire 47 may also be situated below the frame 13. Power means may be provided for operating the cutting wires.
Patent GB-487664-A (GB)
Title: Fixing means for water heaters
IPC: F24H9/06
Filed: 1938-03-21
Abstract: 487,664. Heating water. THERMA FABRIK FUR ELEKTRISCHE HEIZUNG AKT.-GES. March 21, 1938, No. 8611. Convention date, March 20, 1937. [Class 64 (i)] A boiler 1 is secured at its upper end to a wall 3 by a pivoted or universal joint 2 enabling the boiler to be inclined to facilitate the introduction and withdrawal of the heating element and other insertions from below. A lower support 4 may allow the position of the heater to be vertically or laterally adjusted.