baber/WOPTO huggingface dataset:
Patent GB-434914-A (GB)
Title: Improvements in supply units for wireless receiving sets, amplifiers and the like
IPC: C07C301/00
Filed: 1934-12-31
Abstract: 434,914. Converting. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Dec. 31, 1934, No. 37387. Convention date, March 26. [Class 38 (ii)] [See also Group XL] In a supply arrangement comprising a rectifying valve 2 and smoothing circuit 3, 4, 5 to be used with D.C. or A.C. mains, to accommodate the arrangement to varying voltages resistances 7, 8 are connected in circuit one at least being connected in the smoothing circuit. These resistances are provided with short-circuiting switches.
Patent GB-1392555-A (GB)
Title: Non-inflammable polyamide-imide yarns and fibres
IPC: D01F6/74
Filed: 1972-08-10
Abstract: 1392555 Non-inflammable polyamide-imide fibres RHONE-POULENC TEXTILE 10 Aug 1972 [12 Aug 1971] 37437/72 Heading B5B [Also in Division C3] Non-inflammable yarns and fibres are based on aromatic polyamide-imides, contain 8 to 35 wt. per cent of active carbon, and have an Iodine No. of 100 to 500 and a specific surface area of 90 to 300 m.<SP>2</SP>/g. The polyamide-imide may be derived from a tricarboxylic acid anhydride, e.g. trimellitic, or a mixture thereof with a dicarboxylic acid, e.g. iso- or terephthalic, and a diisocyanate, e.g. toluylene diisocyanate or diisocyanato-diphenyl -methane, -propane or -ether. The active carbon preferably has an Iodine No. above 1000 and a specific surface area above 1000 m.<SP>2</SP>/g. Spinning.-The yarns and fibres may be obtained by wet spining a solution of the polymer, e.g. in N-methyl pyrrolidone, containing 8 to 35% carbon black (by wt. of polymer plus carbon) into a coagulate bath of water plus solvent and stretching, washing, drying and optionally drying the filaments. Such solution may be obtained by first homogenizing by grinding a master bath of a solution of polymer containing a higher percentage of carbon and diluting this with a carbon-free solution immediately before spinning. They may be used for protective clotting and for cigarette or anti-pollution filters.
Patent GB-523119-A (GB)
Title: Improvements in or relating to shuttle pegs for weft cops, particularly for automatic looms
IPC: B65H75/10
Filed: 1938-12-23
Abstract: 523,119. Shuttle pegs; cop tubes. MONTIGNY, L. F. B. Dec. 23, 1938, No. 37452. [Classes 120 (iii) and 142 (iii)] In a shuttle peg having elastic means permitting easy engagement of a cop tube but resisting an axial effort tending to remove the tube, a flexible annulus is mounted in or on the head of the peg, the inner diameter of the annulus being less than the outer corresponding diameter of the cop tube. The head of the peg is formed by an outer socket 1 of steel or light alloy and an inner socket 2 of wood or light alloy between which is clamped a rubber annulus 4, the sockets being secured together and to the peg 5 by a cotter 6. In a modification the sockets are screwed together, the outer socket extending the whole length of the inner socket or covering only the end carrying the annulus. In other modifications the sockets are held together by a bayonet joint or by a spring ring engaging a groove in the inner socket and expanding into a groove in the outer socket.
Patent GB-944062-A (GB)
Title: Process for the preparation of organic phosphines
IPC: C07F9/50
Filed: 1961-10-19
Abstract: Phosphines are prepared by reacting in an inert organic solvent (a) elemental phosphorus, (b) an organometallic compound RLi or RMgX where X is halogen and R is unsubstituted or substituted C1-12 alkyl, cycloalkyl or unsubstituted or substituted aryl, said substituents being halogen or C1-6 alkoxy and, if desired, (c) an alkyl halide, and, essentially when an alkyl halide is not present and optionally otherwise, hydrolysing the reaction mixture with water or dilute mineral acid when the reaction is completed. Temperatures of 0-150 DEG C. may be used. Primary, secondary and tertiary phosphines may be prepared and if molar ratios of reactants of the order 2(RMgX):1(P4):2(alkylhalide) are used, the product is stated to be a cyclotetraphosphine. The reaction mixture in Example V is treated with LiAlH4 before hydrolysis.  Products prepared in examples are: phenylphosphine, diphenylphosphine, triphenylphosphine, butylphosphine, dibutylphosphine, tributylphosphine, naphthylphosphine, dinaphthylphosphine, trinaphthylphosphine, 4-methoxyphenylphosphine, 4-fluorophenulphosphine, octylphosphine, dioctylphosphine, trioctylphosphine, cyclohexylphosphine, dodecylphosphine, butylphenylphosphine, dibutylphenylphosphine, butyldiphenylphosphine, butyl (1-naphthyl) phosphine, butylbis (1-naphthyl) phosphine, dibutyl (3-trifluoromethylphenyl) phosphine, butylbis (3-trifluoromethylphenyl) phosphine, dibutyl (4-methoxyphenyl) phosphine, butylbis (4 - methoxyphenyl) phosphine, dibutyloctylphosphine, butyldioctylphosphosphine, hexyldimethylphosphine, dihexylmethylphosphine, butyl 4-fluoro-phenylphosphine, butylbis (4-fluorophenyl) phosphine, dibutyl 4-fluorophenylphosphine, cyclohexyldihexylphosphine, dicyclohexylhexylphosphine, tridodecylphosphine, dipentylpropylphosphine, dipropylpentylphosphine, trihexylphosphine, dimethyl 6-methoxy - 2 - naphthylphosphine, bis (6-methoxy - 2 - naphthyl) methylphosphine, and butylbis (3-trifluoromethylphenyl) phosphine.ALSO:Naphthalene and 1-butylnaphthalene are among the products when white phosphorus is added to an ethereal solution of 1-naphthyllithium and butylbromide obtained from butyllithium and 1-bromo-naphthalene (Example XXIII).
Patent GB-901165-A (GB)
Title: Improvements in or relating to sound deadening and/or absorbing material
Inventor: HILLSON NOEL
IPC: E04B1/74
Filed: 1958-11-24
Abstract: A sound deadening or absorbing material consists of a mixture of wool or cotton or synthetic or natural rubber, flaked, ground or finely divided polythene or polyvinyl chloride and a synthetic resin or rubber latex binder, the mixture being moulded to shape by hot pressing.  A filler such as silver sand may also be present in the mixture and a sheet of perforated or expanded metal may be embedded in the material.  The specified resins are the aldehyde condensation products of phenol, creasol or urea and the hot pressed material may be covered with polythene sheets.
Patent GB-846279-A (GB)
Title: Improvements relating to turbine and compressor blades
Inventor: STARK FRANK HENRY
IPC: B23H9/14
Filed: 1956-12-10
Abstract: 846,279. Making turbine and like blades; removing metal by electric erosion. ROLLSROYCE Ltd. Dec. 10, 1957 [Dec. 10, 1956], No. 37717/56. Classes 83 (2) and 83 (4). [Also in Group XXVI] In a turbine or compressor blade having a shank portion 12 lying between a root platform 11 and a root fixing portion 13, and a supply duct 19 in the shank portion for supplying a cooling or heating fluid to longitudinal passageways 15 in the blade portion 10, the supply duct 19 has its axis on a circular arc, Fig. 7, so as to communicate with all of the passageways and is formed by electric arc or spark erosion or by anodic action. The duct 19 may be of circular, elliptical or triangular crosssection and its axis may be perpendicular or inclined to the blade axis. The blade with its passageways may be produced by any of the methods disclosed in Specifications 744,984, 826,498 or 846,277. For forming the duct 19 the blade is clamped to a rotary table 71 mounted on balls 72 and driven by a variablespeed motor 77. A hollow copper electrode 80 of arcuate form is mounted by a screw 91 on a lever 81, 82 pivoted on a vertical support 73. During erosion the electrode is vibrated by a cam 84 driven by motor 85. An electrolytic bathing liquid such as sodium silicate is supplied by compressed-air from a tank 89 through pipe 88 to the hollow electrode. The blade is surrounded by a chamber 94 having a drain pipe 95, Fig. 8 (not shown). A direct current, or an alternating current superposed on a direct current is supplied to the electrode and blade through conductors 92, 93; the electrode is at positive potential.
Patent GB-1302587-A (GB)
IPC: H01L21/60
Filed: 1970-08-06
Abstract: 1302587 Welding by pressure HITACHI Ltd 6 Aug 1970 [8 Aug 1969] 38047/70 Heading B3R A dual load applying mechanism for use in thermo-compression bonding apparatus for bonding a lead wire to electrodes of a semiconductor device, comprises frame members 11, 15, 16, the frame member 11 being provided with holes 12 for connection to positioning means (not shown), a pivotably mounted main bonding arm 17 carrying at its free end a capilliary device 31 through which wire may be drawn from a reel, the capillary device 31 being heated by heating means 84 and being adapted to bond the wire to the electrodes, and an auxiliary load arm 18 pivotably arranged alongside the bonding arm 17 and adapted to engage the main bonding arm to apply additional load thereto. Movements of the arms are controlled by cams 38, 39 driven by a pulse motor 13 controlled by a photoelectric device 46 co-operating with a cutout disc 45 mounted coaxially with the cams. The apparatus carries an oxyhydrogen burner nozzle 57 which is movable under the control of a cam 63 for severing the wire, thereby forming a ball end 3 on the wire (Fig. 4). Increased bonding pressure is required to form a thermocompression bond between the ball-ended wire compared with that required for the continuous wire (Fig. 2b) so that the auxilliary load arm 18 is applied to the bonding arm in the former case. As an alternative to controlling the auxiliary load arm 18 by means of a cam an electromagnetic solenoid may be used.
Patent GB-1360337-A (GB)
Title: Magnetic record card
IPC: C09D5/23
Filed: 1972-08-16
Abstract: 1360337 Magnetic record cards NATIONAL CASH REGISTER CO 16 Aug 1972 [31 Aug 1971] 38135/72 Heading B2E [Also in Division B5] A magnetic record card incorporates a sheetlike support member of a copolymer of vinyl chloride and vinyl acetate and has on at least a part of the surface of said support member a coating of magnetic particles bound together and adhered to said support member by a binder composed of vinyl chloride-vinyl acetate copolymer. An additional top coating of vinyl chloride/vinyl acetate copolymer may be provided over the magnetic coating. The magnetic coating and the top coating are each applied by transfer from a flexible polymeric carrier film using heat and pressure, and may form a magnetic strip on a credit card. The magnetic coating is applied to its carrier film as a dispersion of magnetic particles in a solution of the polymer and the top coat is also applied as a solution to its carrier film. Either carrier film may be a strip of cellulosic material, nylon, polyethylene, polypropylene or, preferably, polyethylene terephthalate. The magnetic particles are preferably of Fe 3 O 4 , Fe 2 O 3  or mixtures thereof. Alloys of iron or copper with aluminium, nickel, cobalt or carbon, or metal carbonyls, or iron alloyed with chromium, tungsten or molybdenum, may also be used.
Patent GB-1495070-A (GB)
Title: Coin checking device suitable for parking meters
IPC: G07F17/24
Filed: 1975-09-17
Abstract: 1495070 Parking meters KIENZLE APPARATE GmbH 17 Sept 1975 [21 Sept 1974] 38292/75 Heading G4V A parking meter checks the diameter of an inserted coin and through a magnet and a spring biased lever the surface of a metallic coin to determine its allowability. A coin is entered into a coin channel between a rotatable plate 5 and a fixed mounting part 73, which are separated by a guiding segment 9. A coin is fed along the channel by coin transport segments 6, 7 and 8. Drive is from wheel 1 and wheel 2 by means of a spring or other mechanism. Plate 5 is initially held by lever 11 which is tripped by an entered coin. Movement of the coin causes it to move pin 18 or lever 17 upwardly dependent on its value. Gear 19 on the lever rotates gear 20 and thus setting disc 22. The disc is biased to its start position against stop 25 by spring 23. Rotation of the gear 2 also causes rotation of gear 36 and thus of cam 34 and cam 40, Fig. 2. Cam 40 controls the positioning of sensing lever 41. This lever acts to engage a pin 47 on a stop 27, as shown in Fig. 2, to hold disc 22 in a rotated position. In such a position setting lever 30 can rotate anticlockwise until pin 25 contacts step 27. Such movement acts through gear 50, pawl 53 and segment 54 to set time indicator 55. Before lever 30 is rotated a coin is checked by magnets 75, 76 and sensing lever 60. This lever is pivoted as shown in Fig. 9 in which position control portion 65, Fig. 1, is free of lever 41. If a washer is detected, or there is a plastics token the lever 60 assumes the position shown in dotted lines. Portion 65 engages lever 41 and pivots it clockwise thus releasing disc 22 which moves back to its start position and no time is recorded since lever 30 is arranged to move only after this detection has occurred. Lever 60 has other projections 67, 68 which co-operate with segments 6, 7 and 8 to normally hold lever 60 in an ineffective position.
Patent GB-1499008-A (GB)
Title: Process for dyeing cellulose fibres
IPC: D06P1/52
Filed: 1975-09-18
Abstract: 1499008 Dyeing cellulose BASF AG 18 Sept 1975 [19 Sept 1974] 38323/75 Heading D1B Cellulose fibres and mixtures of cellulose fibres with synthetic fibres are dyed by the exhaustion method in aqueous liquor in presence of a water-soluble polymer selected from acrylic acid, alkali metal and ammonium salts of such a polymer and alkali metal and ammonium salts of water-soluble copolymers of maleic acid with styrene, of a water-soluble copolymers of maleic acid with a vinyl ester, and of water-soluble copolymers of maleic acid with a vinyl ether. Vat, sulphur, reactive and substantive dyes may be employed, there being present 0.05 to 2% by weight of polymer based on weight of the material to be dyed. Polyester-cotton mixtures may be dyed with disperse dyes in combination with vat or sulphur dyes.
Patent GB-819117-A (GB)
Title: Apparatus for propelling rollable objects
Inventor: HELLBERG ENAR VALENTIN
IPC: B65G7/02
Filed: 1957-12-10
Abstract: 819,117. Conveying rollable objects. STORA KOPPARBERGS BERGSLAGS A.B. Dec. 10, 1957, No. 38439/57. Class 78/2). A paper roll P is automatically propelled along a path by pneumatic means. Compressed air from pipe 7 passes via pipe 6 into rubber strips 1, 2, 3, 4 so as to inflate them, the roll being propelled by the swollen strips till it is discharged towards the right, the air then escaping through apertures 34 to cause the inlet valve to stop the flow of air. Air valve, Fig. 5.-Each rubber strip is secured in a channel sunk into the surface by means of bars 13 and is supported by rib 10. The outer rubber strips have side guides 16 for guiding the roll P. Compressed air or liquid is introduced from pipe 6 into the rubber strip via inlet valve 5. Valve 5 has slide 26 past which air may pass, valve seat 29, and ball 30. When the roll passes over the valve it depresses slide 26 to cause slide extension 50 to depress ball 30 to permit air to pass into and to inflate the space between the strip and the rib. Additionally, the air blows the ball through the valve seat 29 from space 31 into space 32. When the roll has rolled off the rubber strips, the fall of pressure, due to the escape of air at 34, permits a rubber strip to deflate itself and to press down slide 26 to cause slide extension 50 to press ball 30 through seat 29, the ball then blocking the said seat. Thus the roll initiates the flow of air and subsequently cuts it off.
Patent GB-967746-A (GB)
Title: Electrolytic capacitors
IPC: H01G9/00
Filed: 1961-10-27
Abstract: 967,746. Electrolytic capacitors; semiconductor devices. NIPPON ELECTRIC CO. Ltd. Oct. 27, 1961 [Nov. 8, 1960], No. 38565/61. Headings H1K and H1M. A solid electrolytic capacitor designed to operate over a wide range of temperature ineludes an anode of semi-conductive material with a dielectric oxide film which has an energy greater than 3eV, the significance of this being explained in the Specification. To form the capacitor a silicon rod 11 is anodized in a sulphuric acid bath at 50 v. with part of the rod (13) covered with wax, so that not all of the rod is coated with oxide. The rod is next immersed in a concentrated aqueous solution of manganese nitrate; and thereafter heated, so as to produce a solid conductive layer of manganese dioxide. The electrode 16 consisting of wire net made of for example, nickel, silver, gold or platinum is then twined round the layer 14, and thereafter a further layer of manganese dioxide is produced as before to produce good ohmic contact between the layer and the net. An anode lead wire of silver, gold or platinum is next attached to the part 13, and the element put into a metallic case 22, the cathode electrode 16 being attached to the case. The casing is filled with dry air or oxygen and then hermetically sealed, or an impregnating material may be included. Other materials are suggested, e.g. germanium for the semi-conductor anode and lead dioxide for the conductive layer.
Patent GB-959254-A (GB)
Title: Improvements in electrical contact elements
IPC: H01H11/06
Filed: 1962-10-11
Abstract: 959,254. Mechanical switches, without quick action; contact-members for switches. STANDARD TELEPHONES & CABLES Ltd. Oct. 11, 1962 [Get. 12,1961], No. 38579/62. Heading H2B. A U-shaped contact element has the legs 1 and 2 formed as barbed resilient tongues and contact surfaces 3 and 4 are provided on the centre piece. The element is mounted, for example, in a switch rotor 7 by passing the tongues through slots 8 which are tapered as shown to allow the element to swing into alignment with fixed contact ring 10 and individual contacts 11. A spring 6 is located by a protrusion 5 on the centre piece of the element and the barbs 1c and 2c retain the element in place while allowing some axial movement against spring 6. Contact surface 3 is hemispherical and surface 4 semi-cylindrical so that the element may be reversed in the rotor to provide either a bridging or interruptive switching engagement with contacts 11. The element may be made of beryllium copper and its surface, or only the surfaces 3 and 4 may be coated with a precious metal such as gold, silver, platinum or palladium.
Patent GB-871456-A (GB)
Title: Prevention of caking of common salt
Inventor: SCOTT THOMAS REGINALD
IPC: C01D3/26
Filed: 1958-12-01
Abstract: The caking tendency of common salt is reduced by incorporating in it a small quantity of nitrilotriacetamide, e.g. 0.05% to 0.0001% by weight.  The nitrilotriacetamide is preferably sprayed as an atomized aqueous solution on to the solid salt but may also be added to the salt during its manufacture, e.g. to the suspension of salt in its mother liquor or to the wet filtered salt obtained therefrom.  Other known anti-caking additives may be incorporated in the salt in addition to the trinitrilotriacetamide.  The Provisional Specification refers to the incorporation of salts of the general formula N.(R.CO.NH2)3, R being an alkyl radical.
Patent GB-1463862-A (GB)
Title: System incorporating two control devices and a control loop
IPC: F02M51/00
Filed: 1974-01-18
Abstract: 1463862 Automatic control of fluid-flow REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 18 Jan 1974 [19 Jan 1973] 38743/76  Divided out of 1463861 Heading G3R Fluid-pressure apparatus including a flow and return conduits each equipped with a flow control valve 5, 6 and a pressure sensor 9 located downstream 25 and upstream 26 of the valves respectively where the valves are individually controlled to maintain the difference in sensed pressures at a desired value. The use of the apparatus in conjunction with injectors of the mechanical adjustable pressare type forms the invention claimed in the parent Specification.
Patent GB-1118056-A (GB)
Title: Cladding of carbonaceous substrates
IPC: C23C16/02
Filed: 1966-08-31
Abstract: A carbonaceous surface, e.g. a crucible or socket nozzle is coated with silicon carbide by first heating to 1000 DEG  to 1450 DEG  C. in an atmosphere of a halogenated silane to deposit a layer of silicon, heating to melt the silicon to cause it to be adsorbed into the surface, and silicon carbide to be formed, cooling to a temperature above 1050 DEG  C. and then depositing silicon carbide from a silicon and carbon containing gas, e.g. lower alkylsilanes. Excess silicon may be removed with hydrochloric acid prior to the silicon carbide deposition.
Patent GB-1241464-A (GB)
Title: PREPARATION OF PENTACALCIUM ORTHOPERIODATE, Ca5(IO6) 2, USEFUL IN A SALT BLOCK AND FEEDS
IPC: C01B11/22
Filed: 1968-08-14
Abstract: 1,241,464. Pentacalcium orthoperiodate. MORTON INTERNATIONAL Inc. 14 Aug., 1968 [28 Aug., 1967], No. 38953/68. Heading C1A. Pentacalcium orthoperiodate, Ca 5  (10 6 ) 2 , is prepared by mixing calcium iodate with calcium oxide or hydroxide in the molar ratio 0À08: 1 to 0.5:1 (Ca(IO 3 ) 2 : CaO or Ca(OH) 2 ), heating at 425-560 C., and cooling. The product may be washed with dilute acid until the washings have a pH of 7, and dried to give a product of at least 90% purity.
Patent GB-361677-A (GB)
Title: Improvements in radial cylinder internal combustion engines
IPC: F01M11/06
Filed: 1930-12-29
Abstract: 361,677. Radial cylinder engines. WIPPERMANN, E., 87, Eilperstrasse, Delstern, Hagen,. Westphalia, Germany. Dec. 29, 1930, No. 39047. [Class 7 (ii).] To ensure uniformity of lubrication and evenness of wear of running surfaces in a radial-cylinder engine, the cylinder frame is slowly rotated or entirely stopped while the engine is running by means of a worm gear. The cylinders 26 are arranged in .sets in a frame 25 which is rotated by an irreversible worm gear 38. Liquid fuel is supplied from a tank 1 to a distributer 3 to carburetters for each row of cylinders, and the mixture admitted through valves 4 is ignited by sparking-plug 24. The inlet and exhaust valves 4 are actuated from cam shafts on the cylinder frame by toothed drive 19 from the crank shaft. Cylinders, cooling.-A pump 36 is provided for the water cooling of each row of cylinders. The suction pipes 8 dip alternately into a tank 13, and the water is supplied to the cylinder jackets through pipes 14 and discharged by a pipe 15 into a tank 11 mounted on and rotating with the frame. A pump 12 returns the water to the tank 13. The pumps 36 are driven by electric motors 37 supplied .with current from a dynamo 16 driven from the crank shaft.
Patent GB-1208510-A (GB)
Title: Improvements in and relating to gas burners
IPC: F23D14/26
Filed: 1968-08-16
Abstract: 1,208,510. Gas burner. ULGOR SOCIEDAD COOPERATIVA INDUSTRIAL. 16 Aug., 1968 [17 Aug., 1967], No. 39242/68. Heading F4T. In a gas burner comprising a cylindrical burner head 22 having a reduced diameter portion which seats in a cupped collar 5 provided at one end of a frusto-conical stem 1<SP>1</SP> whose other end 3 acts as a gas inlet, an annular shoulder 5<SP>1</SP> and a lug 8 for locating the burner head 22 being provided internally of the cupped collar 5, the base 11 of the burner head 22 is provided with apertures 12 in its peripheral wall adjacent its base 11 to facilitate formation of a secondary flame 20 and is provided with apertures 16 in its peripheral wall remote from the base for the formation of the main flame 21. The apertures 12 communicate with an annular chamber 6 defined by adjacent surfaces of the shoulder 5<SP>1</SP> and the burner head and communicating with the atmosphere by way of an annular gap 17 between the head and collar. The head may be formed in two parts, viz. a main part 23 (Fig. 4, not shown) and a closure cap 19 having a skirt 18 which is bent over the rim of the main part (23).