baber/WOPTO huggingface dataset:
Patent GB-1423754-A (GB)
Title: Producing steel in a bottom blown converter
IPC: C21C5/34
Filed: 1973-02-23
Abstract: 1423754 Controller converter steelmaking PENNSYLVANIA ENG CORP and AVRR 23 Feb 1973 [28 Feb 1973] 19184/75 Divided out of 1423751 Heading C7D [Also in Divisions F3 and F4] Molten ferrous metal in a converter is blown below the surface with an oxygen-containing gas, while another stream of oxygen-containing gas is introduced above the bath level to react with the evolved carbon monoxide, the rate of injection of the second stream being controlled according the result of analyzing the exhaust gas stream for carbon monoxide content. In the particular embodiment described, oxygen, surrounded by a hydrocarbon shielding gas, is blown in through basal tuyeres 18 mounted in box 14, while the secondary oxidizing gas is blown in through auxiliary tuyeres 118. The selection of gases and duration of blowing is carried out by a computer receiving signals from an oxygen partial pressure sensor 30 and infrared gas analyzer 31.
Patent GB-1119935-A (GB)
Title: Temperature sensing device
Inventor: BROWNHILL FRANK DENISON
IPC: G01K13/02
Filed: 1966-05-02
Abstract: 1,119,935. Measuring temperature electrically. ROLLS-ROYCE Ltd. June 28, 1967 [May 2, 1966; Aug. 3, 1966], No. 19245/66 and 34812/66. Heading G1N. The temperature of a hot gas is measured by causing it to distort a ferromagnetic member thereby differentially varying two inductances connected in a bridge circuit. The hot gas flows through a conduit 11 (Fig. 1) made of soft iron having an external flange 15 located between two coils 26, 27. The rest of the transducer is made of material having a low co-efficient of expansion. In another embodiment (Fig. 7) distortion of the gas conduit 41a causes the external flange 45a to displace a soft iron sleeve 55a relative to two coils 64a, 65a.
Patent GB-458910-A (GB)
Title: An improved process for fulling or felting wool or hair
IPC: D06M13/52
Filed: 1936-07-11
Abstract: Wool or hair is subjected to a fulling or felting treatment in alkaline, neutral, or acid media containing water-soluble phosphates derived from phosphoric acids containing less combined water than orthophosphoric acid.  Meta-, pyro-, and poly-phosphates may be employed.  If desired, these phosphates may be used together with other fulling agents.  The treatment may be applied to goods in greasy or dirty condition or to washed goods. The treatment inhibits the tendency for lime, magnesia, or iron compounds to precipitate in the goods.  Fats are more easily removed, and the goods run more elastically under the fulling or milling members.  In an example greasy or dirty woollen goods are introduced on to a milling cylinder and treated with a solution of sodium hexametaphosphate, sodium pyrophosphate, and a little caustic soda.  In another example the goods are washed at 40 DEG  with a solution of soda, sodium hexametaphosphate, and sodium pyrophosphate.  The goods are rinsed and then treated on a fulling or milling machine with a solution of sodium pyrophosphate. Instead of sodium pyrophosphate, mixtures of sodium hexametaphosphate with soap or with acids may be used.  After the fulling treatment, the goods may be rinsed with a very dilute solution of sodium hexameta-, and pyro-phosphate.ALSO:Wool or hair is cleaned by solutions of water-soluble phosphates derived from phosphoric acids containing less combined water than orthophosphoric acid, e.g. metaphosphates, pyrophosphates, and polyphosphates.  In examples: (1) greasy or dirty goods are felted on a milling cylinder and simultaneously cleansed with a solution of caustic soda, sodium hexametaphosphate, and sodium pyrophosphate; (2) the goods are washed at 40 DEG  C. with a solution of soda, sodium hexametaphosphate, and sodium pyrophosphate, rinsed, and then subjected to treatment in a fulling or milling machine with sodium pyrophosphate solution.  The solutions may contain soap.
Patent GB-735681-A (GB)
Title: Improvements in anti-perspirant compositions
Filed: 1953-07-13
Abstract: A perspiration-inhibiting preparation comprises the combination in an aqueous carrier, e.g. the aqueous phase of a cream in which an oily phase is held in dispersion by an emulsifier, of at least one relatively water-soluble zirconium salt of an organic acid, e.g. sodium zirconium lactate, sodium zirconium glycolate or sodium zirconium gluconate and at least one relatively insoluble zirconium salt of an organic acid, e.g. zirconium lactate, zirconium glycolate or zirconium gluconate. The preparation which preferably has a pH of about 2.5 to 5.5, may be prepared as solutions, e.g. water solutions, emulsions, lotions or incorporated into cream phases which generally comprise an oily phase including natural and synthetic oils, waxes, fats including spermaceti, paraffin, mineral oils, sterols, vegetable oils and other esters of fatty acids of 10-18 carbon atoms, held in dispersion by suitable emulsifiers, e.g. partial esters of fatty acids of 8-10 carbon atoms with glycerine, glycol or other polyhydric alcohols and their polyoxyethylene ethers, including stabilizers such as sodium salts of sulphated monoglycerides of cocoanut oil fatty acids, sodium alkyl sulphates, salts of alkyl aromatic sulphonates, specified emulsifiers suitable for use in the cream base being sodium N-methyloleyl taurate (obtainable under the Registered Trade Mark "Igepon T") sorbitan monolaurate, monopalmitate, and monostearate polyoxyethylene derivatives (obtainable under the Registered Trade Marks "Tween 20" to "Tween 80"), alkylated aryl polyether alcohol (obtainable under the Registered Trade Mark "Triton X45"), and the triethanolamine salt of alkyl aryl sulphonate (obtainable under the Trade name "Ultrawet 60L"), in an aqueous phase which carries the combined zirconium salts, a humectant, e.g. glycerine, sorbitol, propylene glycol also preferably being present.
Patent GB-1088616-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H23/16
Filed: 1965-05-07
Abstract: 1,088,616. Switches held set and freed mechanically. MATSUSHITA ELECTRIC WORKS Ltd. May 7, 1965 [May 8, 1964], No. 19461/65. Heading H2B. A pivoted control rocker 1 has a projection 2, co-operating with the inverted V-shaped free end of a short blade spring 4, and a projection 3 engaging a switch contact-carrying longer blade spring 5, the springs being fully overlapped (Fig. 5c, not shown). Positive actuation of spring 5 is possible by engaging spring 5 in a slot (a) of projection 3 (Fig. 4, not shown). The rocker 1 is actuated directly by hand (Figs. 2-5, not shown), or by a pivotead hndle having a recess containing a spring-pressed plunger (295) engaging a groove (102) in the rocker (Fig. 6, not shown), or by a dolly piece on the rocker (Fig. 7, not shown), or by two pushbuttons (30), (31), (Fig. 8, not shown). Successive actuation via a button (32) and a control pin (322) is described (Fig. 9, not shown). Two switches are mountable side by side for individual operation (Fig. 10, not shown) or conjoint operation (Figs. 11, 12, not shown). The switch is either normally closed or changeover in action. The rocker 1 is pivotally held by recesses in the body (61) and cover (62) of the casing 6 (Fig. 5c, not shown). The terminals 12, 13, 14 are held by recesses of the cover (62) and body (61). The switch or switches are mounted in a panel (21) by screws (22), (23), (Figs. 5, 7, not shown) or a nut and washer (Figs. 6, 9, not shown).
Patent GB-1370395-A (GB)
Title: Preparation of alpha beta-unsaturated nitriles
IPC: B01J23/18
Filed: 1972-04-26
Abstract: 1370395 α,#-Unsaturated nitrites MONTECATINI EDISON SpA 26 April 1972 [29 April 1971 21 July 1971] 19480/72 Heading C2C Alpha,beta-unsaturated nitriles are produced by passing a gaseous mixture of a saturated aldehyde containing more than 2 C atoms, free oxygen and ammonia at 300-600‹ C. over and activated catalyst containing (i) antimony; (ii) uranium or iron, and (iii) oxygen with an Sb/U or Fe atomic ratio of 0À3-40, the molar ratio of free oxygen to aldehyde being from 1-10 and the molar ratio of ammonia to aldehyde is 0À8- 8. Preferably the gaseous mixture contains 1-33% by volume of the saturated aldehyde and the mixture may also be diluted with, e.g. nitrogen, steam and/or CO 2 . For an Sb/U catalyst the atomic ratio is preferably 1-8 and for an Sb/Fe catalyst the ratio is preferably 1-4. The catalyst may be supported on a carrier, e.g. silica, alumina, silica-alumina, silicon carbide or pumice.
Patent GB-1390198-A (GB)
Title: Mechanical jack with a flexible thrust chain
IPC: B66F3/06
Filed: 1972-04-26
Abstract: 1390198 Jacks having flexible thrust chains MANUFACTURE DE MACHINES DUHAUTRHIN and CENTRE D'ETUDES ET D'APPLICATIONS DES TECHNIQUES DE PRODUCTION CTP 26 April 1972 [26 April 1971] 19481/72 Heading B8J [Also in Division F2] A jack comprises a chain rigid under compression when extended by rotation of a drive wheel 3 in a casing 4. The drive wheel 3 divides the chain into an active part A and an inactive part B. The inactive part B is bolted to the casing 4 at 10 and is wrapped around a chain wheel 8 free to move with the inactive part B as it is folded up at half the speed of the active part A. The effective length of the jack can be altered by adding or removing links at the inactive end at 10. In a modification, the inactive portion (B<SP>1</SP>) of the chain is diverted a further 90 degrees so as to be parallel to the active portion A<SP>1</SP>, Fig. 2 (not shown). In a further embodiment, Fig. 3(a) (not shown), the inactive portion (B<SP>11</SP>) is arranged in three parallel sections, its end link being attached by bolts (10<SP>11</SP>) to a moving guide-plate (11) after passing around a chain wheel (13) carried by the casing (4<SP>11</SP>) and driven from the wheel (3<SP>11</SP>) through a reduction gear.
Patent GB-565324-A (GB)
Title: Improvements in or relating to the automatic protection of electric impedance networks
IPC: H02H7/16
Filed: 1943-11-23
Abstract: 565,324. Protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 23, 1943, No. 19545. Convention date, Nov. 23, 1942. [Class 38 (v)] Protection of capacitors and other reactors which are star-connected to a polyphase network is effected by arranging the reactors in parallel-connected groups with their star points insulated from earth and solidly interconnected, and by placing fuses in each phase of each group. Groups 7 ... 10 of capacitors 11 are connected through bus-bars 4 ... 6 and a circuit-breaker 2 to a polyphase circuit 1, each phase of each group including a fuse 12 and the neutrals being interconnected at 13. When, say, a capacitor in phase 5 of group 8 breaks down, current flows as shown by the arrows and the voltage across the sound condensers, which are all parallel-connected in series with the fuse of the faulty condenser, increases from line-to-neutral volts substantially to line-to-line volts and the fuse carries the vector sum of the thus increased currents of the two sound condensers in the group 8, thus producing a three-fold current-increase in the fuse. Since there are four parallel-connected groups, the total current in the faulty circuit fuse is 12 times normal, which is enough to produce rapid and satisfactory isolation of the faulty condenser.
Patent GB-530903-A (GB)
Title: Process for the manufacture of tropic acid amide and its neutral n-substituted derivatives
IPC: C07D451/06
Filed: 1939-07-05
Abstract: 530,903. Tropic acid amides. HOFFMANNLA ROCHE & CO., AKT.-GES., F. July 5, 1939, No. 19578. Convention date, July 7, 1938. [Class 2 (iii)] Tropic acid amides are prepared by the action of ammonia or primary or secondary amines with o-acetyl tropic acid chloride, followed by the splitting off of the acetyl group by acids or alkalis. The ammonia or amines may be reacted in aqueous solution or in solution in an organic solvent such as benzene toluene, ether chloroform, or petroleum ether. In examples : (1) o-acetyl tropic acid chloride is added dropwise to an aqueous solution of ammonia. The required amide separates as a solid and is filtered off and hydrolysed with caustic soda. (2) o-acetyl tropic acid chloride is added to an aqueous solution of ethylamine, and the reaction product extracted with benzene and worked up as in example (1). Allylamine may be used instead of ethylamine. (3) o-acetyl tropic acid chloride is added to aqueous dimethylamine and the product worked up as in example (1) to give tropic acid dimethyl amide. (4) o-acetyl tropic acid chloride is added to diethylamine in chloroform solution, the chloroform replaced by benzene, and then the product hydrolysed with hydrochloric acid to give tropic acid diethylamide. (5) A benzene solution of o-acetyl tropic acid chloride is added to di-n-butylamine in benzene. The reaction mixture is extracted with water and hydrolysed with alcoholic alkali. (6) o-acetyl tropic acid chloride is added to piperidine in benzene solution and the product worked up to give o-acetyl tropic acid piperidide in the same manner as before. (7) o-acetyl tropic acid chloride and aniline are reacted in benzene and worked up as before to give tropic acid anilide. (8) o-acetyl tropic acid chloride is added to benzylamine in toluene solution. The product is extracted with water and dilute acide and saponified as before to give tropic acid benzylamide.
Patent GB-1378654-A (GB)
Title: Air electrodes
IPC: H01M4/96
Filed: 1971-06-09
Abstract: 1378654 Air electrodes for metal-air cells JOSEPH LUCAS (INDUSTRIES) Ltd 18 May 1972 [9 June 1971] 19583/71 Heading H1B An air electrode comprises a porous conductive layer 11 of a sintered mixture of graphite flakes and a synthetic resin binder, and a porous catalyst layer 12 of a sintered mixture of activated charcoal and a synthetic resin binder. The layers 11, 12 are sintered together and a steel current collector mesh 13 may be pressed into the layer 11. In use, in a metal-air cell, the layer 12 is presented to the electrolyte. The mixture from which the layer 12 is formed may also include graphite flakes. When the electrode is used in an alkaline cell in which the electrolyte is not circulated, peroxide ions tend to form at the electrode and to prevent this formation the layer 12 may also include a peroxide decomposing catalyst. The preferred additional catalyst is MnO 2  but other catalysts maybe used, viz., the platinum metals, silver, spinels and mixed oxides of the Group VIII metals and vanadium oxide.
Patent GB-1236515-A (GB)
Title: Pneumatic press
Inventor: LICKLITER ROBERT PAUL
IPC: B30B1/38
Filed: 1969-04-17
Abstract: 1,236,515. Pneumatic presses. R. P. LICKLITER and E. ABBOTT. 17 April, 1969 [15 July, 1968], No. 19645/69. Heading B5F. In a pneumatic press comprising a bed 10, ram plate 12 and mounting plate 14, a pressure tank 45 mounted on one side of the plate 14 is connected through a passage 57 with a cylinder 31 on the other side of the plate 14, the cylinder 31 containing a piston 34 connected to the ram plate 12, and the passage 57 being controlled by a valve 56 (Fig. 4) located within the tank 45. A second passage 120 connected to the cylinder 31 is controlled by an exhaust valve 110. The pressure tank 45 is connected at all times to a pressure source through a conduit 55. The ram plate 12 is slidable on guide posts (11), its downward movement being limited by adjustable stops 26. Its return movement is effected by springs 24. The control valve 56 and exhaust valve 110 include resilient sealing elements 99, 126 respectively operated by a piston 87 (Fig. 4) in a cylinder 58, and a piston 122 (Fig. 5, not shown) in a cylinder 111 respectively. A solenoid-operated pilot valve (54), Fig. 3 (not shown), controls supply of pressure fluid through conduits 72, 74 to control valve 56 and through a conduit 119 to exhaust valve 110. A control switch 142 mounted on the plate 14 is operated by a member 143 mounted on a threaded rod 144 fixed to the ram plate 12. Member 143 can be adjusted to release an actuator 147 and close switch 142 a preselected time before the end of the downstroke of piston 34; closing of switch 142 moves pilot valve 54 to the exhaust position. The upper face of piston 34 has resilient stops 42 to cushion its upward movement.
Patent GB-713908-A (GB)
Title: Cathode-ray tubes and methods of manufacturing the same
IPC: H01J9/227
Filed: 1952-08-06
Abstract: 713,908. Photographic processes. PHILCO CORPORATION. Aug. 6, 1952 [Sept. 26, 1951], No. 19795/52. Drawings to Specification. Class 98(2) [Also in Group XL(a)] A photographic method of making a three-colour screen for use in colour television consists in forming a photographically sensitive layer containing one of the colour phosphors, exposing it to light through a mask in accordance with a desired pattern and removing the unexposed portions, the other complementary phosphor patterns being then formed successively in a similar way. A glass plate which may be the end face of a cathode-ray tube is subjected to a series of cleaning steps which may be physical or chemical, and which may involve as a final step a slight etching of the surface. The phosphor patterns which may make up stripe or dot triplets are then formed. Each photographically sensitive layer containing the appropriate phosphor is laid down as a succession of thin layers by spraying. The unexposed portions are dissolved in water; preferably an initial damping is provided by a fine mist spray. Each layer may be subjected to a baking step prior to the deposition of the succeeding layer. The whole structure is then baked to remove the photographically sensitive material and to bond the phosphors to the glass. To enhance the bonding, the structure may be immersed in a binder such as potassium or sodium silicate prior to the baking treatment. The photographically sensitive material may consist of a polyvinyl alcohol or an animal gelatin, an animal glue, egg albumen or a natural gum such as gum acacia, and ammonium or potassium dichromate together with a suitable diluent such as ethyl or methyl alcohol. For the phosphor materials the usual silicates, phosphates or tungstates may be' used. Index coatings for synchronizing the excitation of the colour patterns may be formed by a similar photographic process. An index stripe may be formed, for example, on each stripe of one of the colour. patterns. The " index" material may consist of gold, platinum or tungsten or of magnesium oxide and may be applied as a suspension in the photographically sensitive material, or it may be sprayed on an initially formed photographically sensitive layer. In the former case an initial photographically sensitive layer is also preferably provided.
Patent GB-369833-A (GB)
Title: Improvements in photographic three-lens objectives
IPC: G02B9/12
Filed: 1931-07-10
Abstract: 369,833. Lenses. ZEISS, C. [Firm of], Carl Zeiss-Strasse, Jena, Germany. July 10, 1931, No. 19829. Convention date, July 17, 1930. [Class 97 (i).] A photographic objective of great light-transmitting power consisting of a dispersive lens arranged with intervening air spaces between two converging lenses of which one is compound and consists of a converging and a diverging element, is characterized by the features (a) that the ratio of the radius of curvature of the front surface of the single dispersive lens to that of the first refracting surface of the objective, i.e. r3 /r1, is numerically greater than 2À5, (b) that the ratio of the radius of the last refracting surface of the objective to that of the second surface of the single dispersive lens, i.e. r7/r4 is numerically less than 1À75 and less than the ratio r3 /r1, and (c) that the vertex distance between the first and second lenses I, II of the objective is less than 1À5 times the vertex thickness of the lens II, the ratio between these distances being preferably less than 1À33. The cemented surface of the compound lens is convex towards the interior of the objective. Numerical data are given.
Patent GB-1255755-A (GB)
Title: A process for the solid state condensation of condensation polymers or the intial products thereof
IPC: C08G69/06
Filed: 1970-04-24
Abstract: 1,255,755. Solid-state condensation. FARBWERKE HOECHST A.G. 24 April, 1970 [26 April, 1969], No. 19835/70. Heading C3R. A high molecular weight condensation polymer is made by subjecting a linear condensation polymer, or a monomer which may be polymerized to give the linear condensation polymer, in the form of pressed objects of fine-grained material of particle diameter below 2 mm. to solid-state condensation under reduced pressure or in an inert gas atmosphere. The pressed objects may contain one or more solid or liquid, chemically inert or reactive additives. The starting material may be a linear polyester, such as polyethylene terephthalate, a polyamide, such as nylon 6 or nylon 66 or the monomer for making the polyamides. The process may be operated continuously when the pressed objects are in the form of an endless band. If a volatile substance which evaporates during condensation is added before pressing, the pressed object attains a honeycomb structure.
Patent GB-257400-A (GB)
Title: Improvements in or relating to manholes and covers therefor
IPC: F16J13/04
Filed: 1925-08-06
Abstract: 257,400. Brain, H. R. Aug. 6,1925. Manhole doors. - A cover 4, Fig. 1, having an outwardly inclined peripheral flange 5 is secured over a flanged manhole opening 2 by means of a bridge-piece 6 with a central bolt 8 passing through the cover and carrying a nut 9, a packing 3 of rubber composition or similar material being compressed to a triangular shape between the flange on the cover and the edge of the manhole when the cover is seated. Alternatively, the packing may be compressed between the plating or between the inner surface of an inclined flange 16, Fig. 6, around the opening and the edge of the cover. The bridge-piece is held by supports 11 while the cover is being fitted. The cover may be inwardly dished. The bridge-piece may be of cruciform shape with one or more members and may be channel-shape in cross-section, or it may consist of a circular plate having a radial slot to facilitate its insertion through the manhole. The flange around the manhole may project both inside and outside the opening.
Patent GB-733697-A (GB)
Title: Improvements in or relating to flexible electric heating elements
IPC: H05B3/36
Filed: 1952-08-06
Abstract: 733,697. Electric heating pads. GOLDSTAUB, H. H. July 31, 1953 [Aug. 6, 1952], No. 19857/52. Addition to 668,163. Class 39 (3). A flexible electric heating element comprises a knitted resistance heating wire between two layers of rubber substance extending beyond the edges of the knitted wire and being united there to form borders. The layers are of natural or synthetic rubber or other substance which is flexible at room temperature or is rigid at room temperature and flexible at the temperature at which the element is used, e.g. methacrylate resins. Several areas of knitted resistance wire may be arranged, e.g. on adhesive paper between two sheets of unvulcanized rubber, which are then secured together vulcanized by heat and pressure. The areas of knitted wire may have borders of insulating fabric, e.g. of knitted glass fibres. The several areas of wire are connected to terminals for connection in series, in parallel or in series-parallel. The knitted fibre glass may be replaced by a material which burns away when the element is used. The rubber sheeting may be stretched tightly round an article to be heated and to be subjected to mechanical pressure. Specification 635,230 is referred to.