baber/WOPTO huggingface dataset:
Patent GB-795762-A (GB)
Title: Process for the preparation of hydrocarbon oils free or virtually free from mercaptans
IPC: C10G17/06
Filed: 1956-06-20
Abstract: Straight-run hydrocarbon oils containing tertiary mercaptans are freed of mercaptans by adding thereto a small proportion of an unsaturated hydrocarbon and treating the mixture with concentrated sulphuric acid.  About 3 per cent of acid of a concentration of 93 per cent or more may be used.  Unsaturated hydrocarbons referred to are light and heavy distillates obtained by the thermal or catalytic cracking of petroleum fractions, gaseous hydrocarbons, for example, those obtained in cracking, e.g. ethene, propene and butanes, after washing with a caustic alkali solution, and acetylene.  From 0.1 to 3 per cent of the unsaturated hydrocarbons may be used.  The treatment may be carried out in several stages.  The mixing of the oil and acid may be effected by mechanical means or by means of air.  Gasoline, kerosene, white spirit and gas oil may be treated.
Patent GB-1463657-A (GB)
Title: Microwave oven
IPC: H05B6/80
Filed: 1973-04-24
Abstract: 1463657 Microwave ovens BOC INTERNATIONAL Ltd 24 April 1974 [24 April 1973] 19262/73 Heading H5H In a microwave oven, having a magnetron 8 as the microwave generator, a fan 10 is provided to draw air from outside the oven and pass it through a passage 14 into the oven cavity, from which it is vented, there being electric resistive heating elements in the passage to heat the air, on its way to the oven cavity. The air is heated to a temperature of at least 180‹ C. The passage, which is in the form of an aluminium oxide tube has such a diameter, and enters the oven cavity at such an angle, that when the oven is in use air flows evenly across the surface of food placed in the oven and prevents condensation of water vapour on the food.
Patent GB-661511-A (GB)
Title: Creaming of natural rubber latex
IPC: C08C1/08
Filed: 1949-07-22
Abstract: 661,511. Creaming latex. UNITED STATES RUBBER CO. July 22, 1949 [April 7, 1949], No. 19330/49. Class 70 The cream and serum fractions, obtaned by adding formaldehyde, a non-ionic surface active agent, and a hydrophilic colloid to natural rubber latex, are separated from each other. The non-ionic agent may be added before, with or after the formaldehyde. Ammonia in excess may be added after formaldehyde to raise the pH to 8, as may also primary amines, e.g. methylamine and ethylamine. The addition should be made after 3 days of the alkali addition, and the latex may be diluted with water before creaming. The formaldehyde is between 0.05 and 1 per cent by weight of the latex, the non-ionic agent between 0.02 and 1 per cent by weight of the latex and the colloid between 0.02 and 0.5 per cent by weight of the latex. Non-ionic agents specified are reaction products of ethylene oxide or polyethylene glycol with organic compounds containing a radicle having 9 to 20 carbon atoms such as monoethers of polyglycols with fatty alcohols or alkyl phenols, or monoesters of polyglycols with fatty acids, e.g. reaction products of ethylene oxide with oleyl alcohol, octyl phenol, or oleic acid. Specified colloids are vegetable mucilages, e.g. alginates, pectates, extracts of the endosperms of leguminous plants of the genera, Cassia, Cervatonia, Caesalpinia and Poinciana, mucilages obtained from plants of the genera Astragalus and Acacia, from the seaweed Chrondrus crispus, the cactus Opuntia monocantha from the leaves of Hibiscus rosasencusis and the pods of Hibiscus esculentus, extracts of Crocus and Amaryllis bulbs, the tubers of Amorphophallus variabilis and rivieri and the seeds of Tamarindus indica.
Patent GB-461240-A (GB)
Title: Improvements in and relating to the manufacture of refractory ware
IPC: C04B35/047
Filed: 1935-07-06
Abstract: Refractory compositions for the production of refractory bricks &c. having a high resistance to spalling comprise mixtures of coarse and fine grains of a refractory substance, the coarse grains being coated with a high melting difficulty sintering substance before being mixed with the fine grains.  Refractory substances specified are chromite, sintered or fused magnesia, chromium spinels and corundum.  The coating substance must be one which does not produce easily fusible or sintering compounds with the principal components of the composition; coating substances specified are spinel, alumina, corundum, chromite, magnesia, magnesium silicates such as talcum, or compounds which form these substances on firing, e.g. aluminium hydroxide, nitrate or sulphate, or mixtures thereof.  The coating substance may be applied in a state of fine division, e.g. in a colloidal or gelatinous condition or as a solution, it may be mixed with inert inorganic or organic binders or fillers.  The size of the coarse grains is in general not less than ,5 mm. and that of the fine grains should not exceed ,2 mm. and is preferably less than ,1 mm.; the composition should contain 50-80 per cent, preferably 65-75 per cent, of coarse grains.  In examples coarse sintered magnesite grains are sprayed with a strong solution of aluminium nitrate and coarse chromite is mixed with a slime of magnesia in dilute sulphite lye the concentrations being such that about 3 per cent of magnesia envelopes the chromite.  The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 464,204, but this subject-matter does not appear in the Specification as accepted.
Patent GB-754046-A (GB)
Title: Prefabricated concrete structures
IPC: E04B1/348
Filed: 1954-07-02
Abstract: 754,046. Portable buildings. HAMER, T. E. Jan. 25. 1955 [July 2, 1954], No. 19396/54. Class 20(1). A prefabricated building e.g. a bus shelter, Fig. 11, is built up from reinforced concrete front and back wall units 10 each having an internal cantilever roof 11, bolted together and to right and left hand end units 21, the sides of the units being suitably thickened as at 19 and with holes 18 to receive the bolts. The cantilever roof parts 11 may be spaced by similar intermediate roof parts 30 bolted to cantilever flanges 16. The joint faces are grooved e.g. as at 19, Fig. 3, to receive sealing strips 36 which may be made of asbestos rope. The end units have cranked edges 25, Fig. 6 (not shown) to fit behind-the thickened edges of the front or back wall units. The roof parts 30 have central strengthening ribs 32, Fig. 10 (not shown.) All the vertical units are provided with glass windows 12 in mastic within copper angle strips 13 and held in rebates by hardwood plugs 15 cast in the concrete. All the units are reinforced with metal rods projecting at the base to fit into holes in the foundations, or they can be cut off as required by the site level.
Patent GB-841220-A (GB)
Title: A scale of lengths, particularly a centimetre scale and procedures for manufacturingit
IPC: G01B3/00
Filed: 1957-06-20
Abstract: 841,220. Scales; measures of length. HENSOLDT & SOHNE, OPTISCHE WERKE A.G., M. June 20, 1957 [June 20, 1956], No. 19445/57. Classes 106 (2) and 106 (4). [Also in Group XX] A scale of length for machines in which the graduations are at least one centimetre apart has each graduation in the form of twin strokes 2, measurements being taken by estimating the mid-point between the twin strokes, so that dividing errors may readily be corrected by broadening one of the strokes, as shown at 2<SP>11</SP>, or by allowing for the error in applying the second set of strokes, as shown at 21. A division consisting of single strokes is first applied to the scale and checked for accuracy, and then a second division is applied somewhat displaced from the first, any dividing errors in the first division being allowed for by changing the separation of the second stroke from the faulty stroke in the appropriate sense. Any further errors found can be corrected by broadening one of the strokes. The second division can be applied in a direction opposite to the first. Specifications 638,945 and 643,590 are referred to.
Patent GB-259273-A (GB)
Title: Improvements in ladies' high top walking boots
IPC: A43B3/02
Filed: 1926-08-06
Abstract: 259,273. Haldinstein, G. E., (trading as Haldinstein & Sons, P.). Aug. 6, 1926. Patent abandoned on opposition. Top boots; uppers.-Ladies' high top walking boots are provided with a knitted fabric leg portion which has the appearance of a silk stocking and is adapted to fit closely to the leg. The fabric may be made of wool and cotton, wool and silk, or wool and cotton and silk, and be proofed against water after dyeing. The fabric top is sewn or otherwise attached to a rubber or other shoe, and a piece of elastic to act as a garter may be provided at the top of the leg portion. Reference has been directed by the Comptroller to Specification 262,331.
Patent GB-796651-A (GB)
Title: Improvements in or relating to tone control in audio frequency amplifiers
IPC: H03G5/06
Filed: 1954-07-03
Abstract: 796,651. Zone controlling. COLE, Ltd., E. K., and HUTCHINGS, E. L. July 4, 1955 [July 3, 1954],No. 19547/54. Class 40 (4). [Also in Groups XL (b) and XL (c)] A tone control network used as an intervalve coupling comprises a T-pad of resistances R1- R3 with condensers C1, C2 in series with resistances R1, R2 respectively and condenser C3 connected between the input and output terminals of the T-pad. The frequency response is controlled by a potentiometer VR connected in series with a condenser C4, between the join of C1, R1 and the output terminal of the T-pad. The slider of the potentiometer VR is earthed. 'With the slider at end (1) the condenser C1 is short-circuited and progressive bass attenuation is produced by condenser C2; the resistance of the potentiometer in series with the condenser C4 renders the latter ineffective, so that progressive top boost is provided by by-pass condenser C3. As the slider is moved towards the other limit (3) the short-circuit on condenser C1 is progressively removed, increasing the bass response until bass-boost is eventually produced, whereas progressive reduction of the resistance in series with condenser C4 reduces the top response until eventually top cut is produced instead.
Patent GB-424754-A (GB)
Title: An improved yarn or thread and fabric made therefrom
IPC: D03D15/00
Filed: 1934-07-03
Abstract: A thread comprising a wire core and two opposite helical layers of cotton is impregnated, before or after weaving, with a wax, which may be subsequently removed by washing or by the use of solvents.  In an example, the thread is run through a bath comprising about 35 per cent light carnauba wax, 15 per cent white paraffin wax and 50 per cent ordinary paraffin wax with a M.P. of about 130 DEG  F.  The bath is heated to about 220 DEG  F., and the thread is wiped as it leaves the bath.  Where flame resisting qualities are desired, the fibrous material may be impregnated with chlorinated naphthalene, or a compound containing oxidized stearine pitch.
Patent GB-314225-A (GB)
Title: Improvements in the packing of tinplates or the like
IPC: B65D85/48
Filed: 1928-07-06
Abstract: 314,225. Morgan, T., and Morgan & Co., Ltd., R. H. July 6, 1928. Packing tinplates. -In the packing of tinplates and the like, an open-topped container, comprising a bottom-plate 1, which may be cut away at 2, and upstanding sides 3, is used. In use; a loose sheet of plywood &c. is put in first, then a pile of plates, and finally a second loose sheet of plywood &c. to come flush with the top edges of the sides 3. The assembly is secured by metal bale ties.
Patent GB-1501347-A (GB)
Title: Catalyst and process for polyolefin manufacture
IPC: C08F297/08
Filed: 1976-05-12
Abstract: 1501347 Ziegler catalyst components WACKER-CHEMIE GmbH 12 May 1976 [12 May 1975 26 Feb 1976 (2)] 19603/76 Heading B1E [Also in Division C3] Polymerisation catalysts comprise an alkylaluminium compound and a component prepared by reacting metallic magnesium with at least 2 moles of allyl chloride and with 1.75-3 moles of a dialkyl ether at 30-100C, ageing the solid formed for at least 10 hours at 30-140C and either simultaneously or subsequently reacting the solid with at least 0.2 moles of a dialkyl sulphite, reacting the solid formed for 1-25 hours at -20 -140C with 0.5 to 10 moles of TiCl x  (OR) n  wherein R is a hydrocarbon or a halogenohydrocarbon radical, x is 2-4, y is 0-2 and x + y=4, and isolating the solid so formed from the reaction mixture, all the proportions being referred to 1 gram-atom of Mg. The titanium compound may be TiCl 4 , a mixture of TiCl 4  and Ti(OR) 4  used together or sequentially or a reaction product of TiCl 4  and an epoxide which may be prepared in situ. Preferably excess organic reactants and organic byproducts are removed by washing with a hydrocarbon solvent and/or by distillation at one or more stages in the preparation of the component which is finally suspended in a (chloro) hydrocarbon for use. The alkylaluminium compound may be added to the suspension to activate the catalyst before the monomer is contacted therewith or the two components can be added separately to the monomer.
Patent GB-1454847-A (GB)
Title: Jack
IPC: B66F3/12
Filed: 1974-05-04
Abstract: 1454847 Jacks METALLIFACTURE Ltd 20 Sept 1974 [4 May 1974] 19711/74 Heading B8J A jack comprises an elongate cranked member 11 to which is pivoted an end part 16 of an arm 15 carrying a load supporting member 28 at its other end 23. A nut 21 is pivotally mounted at upper end 20 of portion 12 of the member 11 and is engaged by a screw 25 mounted in a socket member 22 at end 23 of the arm 15. In use, to lift a load, from the piston shown, with portion 13 of the member 11 lying on the ground, a handle 26 is used to rotate the screw 25 to draw the end parts 20, 23 together, the member 11 pivoting about its foot 30 from the position shown to a generally upright position, Fig. 2, (not shown), teeth 31, 32 on the foot 30 successively engaging the ground to prevent slipping.
Patent GB-854781-A (GB)
Title: Improvements in and relating to apparatus for twisting yarn
Inventor: DOBSON AUSTIN
IPC: D02G1/08
Filed: 1957-06-11
Abstract: 854,781. Twist-tubes &c. SCRAGG & SONS Ltd., E. June 20, 1958 [June 11, 1957], No. 19767/58. Divided out of 854,780. Class 120(2). A false-twisting device comprises roller assemblies 1, 2, having parallel axes and rotating in the same direction, the peripheries of the rollers overlapping to form cusps. The intermediate rollers, as at 9, 10, 11, are of larger diameter than the end rollers, as at 8 and 12, and the relative diameter of the rollers are such that yarn remains in contact with all the rollers, and is rotated by its frictional engagement therewith, during its passage through the device. The enforced path of the yarn compensates for its tendency to balloon between the end rollers. Specification 821,460 also is referred to.
Patent GB-958360-A (GB)
Title: A method of treating natural plant fibres such as flax fibres to render them suitable for textile purposes
IPC: D01C1/02
Filed: 1960-06-03
Abstract: Natural plant fibres, such as retted flax, hemp and china grass, are treated in an aqueous decolorizing bath comprising a dilute aqueous solution of any two of the substances sodium carbonate, sodium bicarbonate and sodium hydroxide.  The decolorized fibres are washed, treated in an aqueous oiling bath containing formic acid and an emulsified fatty oil, again washed and then dried at an elevated temperature or in the open air.  The decolorizing bath may contain about 1 gram per litre of sodium bicarbonate and about 3 grams per litre of sodium carbonate, or 1 gram per litre of sodium carbonate and 10 litres of an aqueous solution of caustic soda having a specific gravity of 36 DEG Be1 per 1000 litres of decolorizing solution.  The decolorized fibres may thereafter be treated in an aqueous bleaching bath containing, per 1000 litres of bath, 1 Kg of soft soap, 1. 5 litres of a concentrated aqueous solution of sodium silicate of 36 to 38 DEG Be1 gravity and 5 litres of 130 vol. hydrogen peroxide, added as soon as the decolorizing solution has been heated to the boiling point.  In either case the decolorized, or decolorized and bleached fibres are thereafter washed with water and treated in the oiling bath, which may contain about 400 mil. of formic acid and 1 litre of Traminol B (an emulsifying agent) for each 100 Kg. of fibres.  The weight of the oiling bath may be about 20 times the weight of the fibres being treated The treatment of the invention may be applied to green flax obtained directly from the white crop when the seeds are separated from the stalks and conventionally cleaned by stripping to separate the straw from the flax fibres, which are then subdivided longitudinally and opened in a machine, the product being flax waste and a continuous material in the form of an untwisted cord.
Patent GB-1465108-A (GB)
Title: Dispensing of materials for use in dish washing and other  machines
IPC: A47L15/44
Filed: 1974-05-06
Abstract: 1465108 Dishwashing machines DIVERSEY Ltd 6 March 1975 [6 May 1974] 19815/74 Heading A4F [Also in Divisions B8 and D1] A dispenser for dispensing material such as solid or liquid detergent into a dishwashing or other machine comprises means for advancing therethrough a tube F containing the material, a slitting blade L arranged to produce a continuous slit in the tube F as it advances, and a ramp device M arranged to engage and deform the slit tube F so that the material falls from the slit and a hopper N for receiving the falling material and passing it to the machine. The tube may be sealed transversely to provide material in discrete portions. The blade L can alternatively be of a scissors pattern or can be rotatable, and, if desired, a plurality of blades may be arranged around the periphery of tube F. The latter is advanced by winding it intermittently on to a spool K rotated by linkage mechanism Q operated by a solenoid J controlled by a circuit P having a variable pulsed output. The material may be washed through the hopper N by water discharged through a sprayer W controlled by an electrically operated valve O.
Patent GB-1362841-A (GB)
Title: Process of manufacturing a thermoplastic synthetic multifilament textured yarn
IPC: D06M13/224
Filed: 1971-06-10
Abstract: 1362841 Yarns KANEBO Ltd 10 June 1971 [16 June 1970] 19829/71 Heading D1F A textured yarn is made by impregnating a multifilament synthetic thermoplastic yarn with a sufficient amount of (1) a polymeric sizing agent selected from starch, polyvinyl alcohol, polyvinyl copolymers and polyurethanes, (b) an oil agent selected from mineral oil, vegetable fats and oils, esters of fatty acids diesters of thiboric acids and mixtures of these oil agents, to impart to the yarn a filament dippage resistance of 0.8 to 2.8 grams per denier. The yarn is then false twisted. The slippage resistance value is measured by subjecting a filament bundle to a pressure of, 200 grams per cm<SP>2</SP> per denier of the single filaments, measuring the minimum load required to withdraw a single filament from the compressed bundle, and dividing an average minimum load by the average denier of the withdrawn filaments. The yarn may consist of a polyamide, e.g. a polycapramide or a polyhexamethylene adipamide, or a polyester, e.g. polyethylene terephthalate or polyethylene oxybenzoate. The polyvinyl copolymers forming the sizing agent may comprise 0.1% to 10% by weight of at least one monomer having at least one functional group selected from amide, aldehyde, alcohol and oxysilane groups and at least one monomer selected from acrylic and methacrylic acids, acrylic and methacrylic esters containing at least one ester residue having 1 to 12 carbon atoms, vinyl acetate and acrylonitrile.  The polyurethanes forming the sizing agent may be selected for products prepared from a polyhydroxyl compound terminated by a hydroxyl group and having a molecular weight of 2000 to 3000, and a diisocyanate selected from phenyl diisocyanate, trilene diisocyanate, diphenylmethane diisocyanate and hexamethylene diisocyanate. The oil agent or agents may be used with an anionic, cationic, non-ionic or amphoteric surface active agent. The impregnant may be applied to the yarn in an emulsion or solution form, either from having a pneumatic viscosity of 3 to 30 centistokes. The impregnant may be applied in an amount of 0.7% to 3% based on the weight of the yarn. Many examples of yarn impregnation treatments are given.
Patent GB-964553-A (GB)
Title: Improvements in railway code-signalling systems
IPC: B61L3/22
Filed: 1962-05-24
Abstract: 964,553. Track apparatus. VYZKUMNY USTAV DOPRAVNI. May 24, 1962 [May 31, 1961], No. 19970/62. Heading B7N. In an arrangement for passing code signals to a locomotive operating over a branched line, a cable 4 is disposed, as shown, adjacent at least one rail of each track and carries coded A.C. signals supplied via transformer 8. These signals are picked up by coils positioned in front of the leading axle of the locomotive and connected to receive apparatus selectively tuned to the frequency of the A.C. signals. The track circuits 1, 2 and 3 are supplied from a common source 5 at a frequency different from the cable circuit and are provided with a common track relay 7.
Patent GB-847041-A (GB)
Title: A passenger transporting system
IPC: B66B29/06
Filed: 1958-06-23
Abstract: 847,041. Passenger-carrying belt conveyers. STEPHENS-ADAMSON MFG CO. June 23, 1958 [July 10, 1957], No. 20003/58. Class 78 (1). In a passenger transporting system including a conveyer belt presenting a relatively smooth transport surface and a stationary passenger platform at one or both ends of the transport surface, a landing member which is rockable about a horizontal axis is interposed between each platform and the belt, the landing member having a pointed sealing edge and projecting over and closely adjacent the transport surface, stop means being provided for limiting the upward and downward rocking movements of the landing member, and resilient means being arranged to bias the sealing edge towards the transport surface. As shown, a reversibly driven endless belt 12 transports passengers between upper and lower landing members. The lower landing member comprises a landing plate 34 of metal having a smaller coefficient of friction than that of the belt 12, and a member 38 of rubber or other material having a coefficient of friction equal to or greater than that of the belt 12, the plate 34 and the member 38 being secured together and to a plate 82 by bolts 86. The plate 82 is welded to a supporting plate 80 which is pivotally mounted by lugs 90 and pivot pin 94 to a pair of stationary lugs 96 having slotted holes 92a to receive the pin 94. The plate 34 of the lower landing member is arranged as shown at an angle to the plane in which the belt travels, whereas the plate of the upper landing member (not shown), which is otherwise similarly constructed to the lower landing member, is arranged in the plane of the belt. The plate 34 has a curved portion 44 arranged to prevent a passenger's heel 76 being caught on the edge 36 of the plate. It is said that owing to the high coefficient of friction of member 38 foreign matter is normally prevented from entering between the landing member and the belt. Should this happen, however, the plate will be rocked and a microswitch 58 is operated to switch off the driving motor of the belt. The micro-switch is operated by a lever 60 having an adjustable switchactuating bolt 138 on its outer end and secured at its inner end to one of the lugs 90. The landing member is maintained with its printed edge closely adjacent the belt 12 and its forward end in contact with a platform 81 by springs 144 which act on hooked links 140 engaged with brackets 154 welded to the plate 80. A stop plate 102 is welded to a bracket 100 at each end of plate 80 for engagement with an adjustable stop screw 106 which is set to maintain the edge 36 just clear of the belt 12. A pair of bolts 120, passed through apertures in the plate 80 and a stationary plate 98 respectively, and each provided with adjusting nuts 126, limits the rocking movement of the edge 36 away from the belt 12 to approximately an eighth of an inch. Specification 787,842 is referred to.