baber/WOPTO huggingface dataset:
Patent GB-682537-A (GB)
Title: Improvements in or relating to cigarette holders and tobacco pipes
IPC: A24F13/04
Filed: 1950-03-31
Abstract: 682,537. Mouthpieces for tobacco pipes &c. KOKKINOS, T. T. March 31, 1950 [May 6, 1949], No. 8096/50. Class 130. A tube 3 is screwed into and spaced apart from the wall of a mouthpiece 4 having an aperture 5 so that tobacco smoke and air are simultaneously drawn through the mouthpiece. The outlet end of the tube is rotatably supported in the mouthpiece and may be provided with longitudinal grooves 1 forming air passages; alternatively, the tube end may be surrounded by a series of small diameter tubes.
Patent GB-204071-A (GB)
Title: Improvements in internal combustion engines
IPC: F01B3/04
Filed: 1922-03-21
Abstract: 204,071. Cassady, G. March 21, 1922. Valve gear.-In four-stroke engines with the cylinders 5 parallel to the shaft 2, the inlet and exhaust valves 17, 18 are worked by cam projections 23, 24, Fig. 6, on spur wheels 22 driven at half-speed by a wheel 25 on the shaft. The projections 23, 24 wipe over projections 27, Fig. 8, on plates 21 slidable on studs 19, the plates pressing on the valve stems 15.
Patent GB-731005-A (GB)
Title: Improvements in dyeing animal fibres in admixture with synthetic linear polyamide fibres
Filed: 1953-03-25
Abstract: In dyeing animal fibres, e.g. wool or silk, in admixture with synthetic linear polyamide fibres, with reservation of the polyamide fibres, an aqueous acidic dyebath is employed containing an acid dyestuff (including metallized and metallizable acid dyestuffs) and a salt of a metal having an atomic number of 3-56 or of ammonium and yielding nitrate, bromide, iodide or thiocyanate ions.  Specified salts, which may be employed in admixture, are those of ammonium, sodium, potassium, magnesium, calcium, barium, zinc and tin.  The dyebath may also contain a water-soluble chloride of a metal having an atomic number of 20-56, e.g. zinc chloride, and dispersing agents such as alkyl polyglycol ethers, alkyl aryl sulphonates, alkyl sulphates and fatty acid condensation products, examples of which are given.  Numerous examples are given in one of which (example 6) the dyestuff is chromed on the fibre.
Patent GB-800135-A (GB)
Title: Porous metal bearing, and method of manufacturing the same
Inventor: MORGAN VICTOR THOMSON
IPC: F16C33/12
Filed: 1956-03-16
Abstract: 800,135. Bearing bushes. BOUND BROOK BEARINGS, Ltd. March 16, 1956, No. 8246/56. Class 12 (1). A porous metal bearing comprises a rigid support 11 having a lining 12 formed as a porous sintered mass of substantially uniform, rotund particles of metal, the inner surface of the lining having its pores impregnated with polytetrafluoroethylene which may form a layer 13 or penetrate wholly into the lining 12. The support 11 may be made as a sintered mass of low porosity, and correspondingly high physical strength, and this too may be partially or wholly impregnated with P.T.F.E. In a method of manufacturing the bearing, the rigid outer portion is used as a mould on to which the metal powder is sintered to form, a lining. Alternatively, the metal powders of the support and lining are sintered simultaneously. Speci. fication 657,085 is referred to. Reference has been directed by the Comptroller to Specification 657,080.
Patent GB-829370-A (GB)
Title: Improvements in or relating to heat-fusible material spray guns
IPC: B05B7/20
Filed: 1957-03-13
Abstract: 829,370. Spraying fusible materials. METALLIZING ENGINEERING CO. Inc. March 13, 1957 [April 13, 1956], No. 8266/57. Class 69 (3). A flame spray gun for fusible powders supports a tubular hopper 2 containing the powder which, in operation, falls by gravity through a hole 5 and from the outlet of a flexible rubber tube 13 to a chamber 19 and to a slot 29 in a plug 23. Fuel gas flowing along a passage 21 passes through a jet screw 30 and carries the powder centrally through the plug and nozzle 26 to the combustion zone. Powder flow is controlled by a trigger-operated valve piston 16, which, in the non-spraying position, is urged rearwardly by a spring 83 to squeeze closed the outlet end of the rubber tube 13. A trigger 70, pivoted at 71, has a cross-pin 73 which engages a slot in a hollow square piston 74. A piston 79 slides within piston 74 and is urged forwardly by a spring 80, and a stop 82 limits movement of the inner piston. Cut-outs 85, 86 in the piston 74, and a groove 85a in the partition between the cut-outs, engage with projections on a cam 92, pivoted at 77, and acted upon by a spring 78, so that when the trigger is urged rearwardly against a spring 71 the pistons 74, 79 are urged forwardly and piston 16 is moved forwardly to open the tube 13. The cam locks the piston 74 in the forward position and the powder valve remains open. To release the valve, the trigger is again squeezed to disconnect the cam and the piston 74, and is then released, whereby the piston will return to its original position shown in Fig. 2. Fuel gas is fed through the gun rear through a valve-controlled inlet F, and flows along passages 42 and 44 to a bore 40, and com-. bustion supporting gas is similarly fed through a valve-controlled inlet O to passages 41, 43 to bore 40. The gas mixture passes to circumferentially-spaced passages 37 in the nozzle 26, and converging passages 38 for induced air are circumferentially spaced around the nozzle to prevent the tendency of material to collect on the nozzle face. A proportion of fuel gas is led from passage 42, Fig. 3, through a passage 64 to a bore 55 in which a needle valve body 56 fits, and a threaded needle 57 operated by a handle 58 controls the flow of fuel gas through the valve body and passages 90, 63, Fig. 2, to a bore 65 leading to the passage 21. A detent piston 88 engages grooves 87 in the valve handle 58 and provides means for determining the valve setting. Atmospheric pressure in chamber 19 is provided by a hole 35. An electric vibrator may be attached to the gun body. A larger hopper may be supported above the gun and connected to it by flexible hose.
Patent GB-839436-A (GB)
Title: Ward-leonard drive for knitting machines, particularly for cotton machines
IPC: H02P7/34
Filed: 1957-03-13
Abstract: 839,436. Knitting-machines. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. March 13, 1957 [March 27, 1956], No. 8292/57. Drawings to Specification. Class 74 (2); [Also in Group XXXVII] A cotton machine is driven by an electric motor supplied from a Ward Leonard generator having a field winding energized from an A.C. source through a rectifier and voltage stabilizer (see Group XXXVII). The individual operating speeds of the machine are set by means of selector switches which control the amount of resistance in series with the rectifier.
Patent GB-1062322-A (GB)
Title: Lead titanate zirconate ferroelectric ceramic material
IPC: C04B35/50
Filed: 1964-02-27
Abstract: A lead-titanate-zirconate ferroelectric ceramic includes not more than 0.3% by weight of indium dioxide and not more than 0.5% by weight of chromium sesquioxide (Cr2O3).  The fundamental composition preferably comprises 46 mol per cent of PbTiO3 and 54 mol per cent of PbZrO3.  The components are mixed in a ball mill, pre-sintered for one hour at 200 DEG  C. and pulverized.  The powder is pressed and sintered for one hour at 1300 DEG  C.  Several examples of compositions are given.  A composition comprising between 0.10 and 0.25 wt. per cent of IrO2 as sole additive is also referred to.
Patent GB-1136899-A (GB)
Title: A method of manufacturing hollow closed articles of concrete, and articles so manufactured
IPC: B28B7/16
Filed: 1967-02-21
Abstract: 1,136,899. Hollow closed concrete articles. S. A KONNBERG. 21 Feb., 1967 [2 March, 1966], No. 8309/67. Heading B5A. Hollow closed concrete articles, e.g. vessels, containers and tanks for holding liquids are formed by casting concrete in the space between an outer mould (1) and an inner mould up to level (4) to form the base (2) and side walls (3). Reinforcement (5) may be provided in the concrete. The top edge (6) of the wall is then preferably chamfered using a mould ring, the inner core and mould ring are removed and a concrete slab (7) containing lifting lugs (8) cast into the slab and optionally a manhole (9) and having a chamfered edge to correspond with edge (6) is lowered into position on top of the walls (3). The concrete slab (7) is suspended from beam 10 by the lugs 8 and its position is adjustable by screws 12 which coact with the outer mould (1). Reinforcing rods 15 are fitted if required, attached to the reinforcement 5 of the side walls, and concrete is poured on to the top so that it bonds with the unset concrete of the walls 3 forming an integral object.
Patent GB-991046-A (GB)
Title: Improvements in or relating to apparatus for applying refractory material to structures
Inventor: SUTTON ARTHUR FREDERICK
IPC: F27D1/16
Filed: 1963-03-01
Abstract: 991,046. Cement guns for repairing furnaces. PLIBRICO CO. Ltd. Feb. 20, 1964 [March 1, 1963], No. 8336/63. Heading E1S. [Also in Division F4] A cement gun, particularly for repairing furnace linings with dry refractory material, is carried by a rotatable head 3 at the end of a water-cooled hollow boom 1. The head 3 is mounted by a shaft 5 within an enlarged bowl 2 at the end of the boom 1 and its position is controlled by wires secured to and passing round a drum 7 fixed to the water cooled cover 4 of the head. The gun, Fig. 4, comprises an outer annular fuel gas passage 18 connected through radial inlets 23 to the nozzle part 24 of the inner material passage, where the gas in oxygen acting as a carrier gas for powdered refractory material. The boom 1 is rotatably mounted in a sleeve 26, Fig. 5, which pivots about an horizontal axis secured to a stirrup 32, mounted to swing about a vertical axis 39. The movement of the boom 1 is controlled by an hydraulic motor 28 through gearing 29-31, and by rams 36, 42. The assembly is mounted on an arm 41 projecting sideways from the forks 45 of a fork lift truck.
Patent GB-1132105-A (GB)
Title: Foamed polymeric materials
Inventor: LEWIS JOHN RICHARD
IPC: C08J9/06
Filed: 1965-02-26
Abstract: 1,132,105. Foamed Polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 11 Feb., 1966 [26 Feb., 1965], No. 8373/65. Headings C3C, C3P and C3R. Polyamides are foamed by means of a blowing agent generated in situ by the thermal decomposition of a decomposable polymer. Preferably the polyamide is crystalline and the expansion takes place at least in part within its crystallizing range. The decomposable polymer may suitably be polymethyl methacrylate, which may be copolymerized with acrylonitrile, and which decomposes above 200‹ C., a polyolefine sulphone, which will decompose at lower temperatures, polypyrrolidone or an aldehyde or ketone polymer. On cooling the polyamide the polymer repolymerizes on the cell walls, thus strengthening and rigidizing the foam. Substances which generate or adsorb free radicals may be added to the polymer to control the initiation time and rate of its decomposition. A nucleating agent, e.g. talc, may be included in the molten polyamide to quicken its crystallization and hence produce a more rigid foam. In a preferred process, the mixture of the two polymeric substances is extruded through a screw extruder at a temperature above the melting point of the molten polyamide into a thermally insulated mould.
Patent GB-1275461-A (GB)
Title: Pulsating combustion system
Inventor: BRIFFA FRANCIS EMMANUEL JOSEPH
IPC: F23C15/00
Filed: 1969-02-17
Abstract: 1275461 Pulsating type combustion apparatus; fluid logic switching circuits SHELL INTERNATIONALLE RESEARCH MAATSCHAPP J NV 16 Feb 1970 [17 Feb 1969] 8442/69 Headings F1L and F1P A pulsating type combustion apparatus comprises at least two combustion chambers 1, 2 having inlets 3, 4 for fuel/oxidant mixture, outlets 5, 6 for combustion gases, and pressure pulse take-off lines 25, 26 connected to respective control channels 17, 18 of a fluidic switch 11, the outlet channels 15, 16 of the latter being in communication with respective inlets 3, 4 of the combustion chambers. The inlet channel 14 of switch 11 is connected via valve 13 to a fuel gas feed line 12. Thus a combustion pulse in chamber 1 causes a rise in pressure in control channel 17 which switches the fuel gas supply from chamber 1 to chamber 2. Similarly combustion in chamber 2 switches the gas supply back to chamber 1 and so on. Oxidant, e.g. air, is sucked into inlets 3, 4 alternately by the ejector action of the fuel gas issuing from nozzles 21, 22 at the outlet ends of channels 15, 16. Ignition within the combustion chambers is effected by means 7, 8 connected to a high frequency electricity source 27. The frequency of pulsation can be controlled by varying the fuel supply or delay in switching. The combustion gases leaving through outlets 5, 6, enter a common silencer duct 31. A water heating jacket 28 having an inlet 29 and outlet 30 surrounds the combustion chambers 1, 2. If a liquid fuel is used then the oxidant can be passed through fluidic switch 11 and the fuel supplied by a carburetter. Both fluids may pass through a fluidic switch. Several such switches in series can be used in arrangements having more than two combustion chambers. Switching can be controlled by negative rather than positive pressure. Diaphragms may be included in each of the pressure pulse take-off lines 25, 26 to prevent combustion gases from entering the switch 11.
Patent GB-544329-A (GB)
Title: Improvements in the manufacture and design of mechanical lighters
IPC: F23Q2/06
Filed: 1941-07-04
Abstract: 544,329. Cigarette lighters. BERRY, D., and BERRY, W. H. July 4, 1941, Nos. 8445 and 15743. [Class 75 (iii)] The' body of a mechanical lighter is extruded, moulded and/or machined from a synthetic plastic material with a passage or chamber forreceiving fuel-absorbing material and a second passage or chamfber for housing a flint and its associated tensioning means. Figs. 1 and 2 show a lighter having a body 10 cut from an extruded bar of the desired cross-section and drilled with a chamber 11 for receiving fuel-absorbing material 18 and a hole 19 for receiving a screw 34 and a spring or rubber cylinder 20 for pressing a flint 24 into contact with a friction  wheel 22 mounted in a saddle 21 which is a push fit in a recess countersunk at the upper end of the hole 19. A wick holder 15 of metal or synthetic material screws into a hole 12 formed at the top of the chamber 11 and a closure plug 14 screws into the bottom of the chamber 11. A cap 16 of synthetic plastic material screws on the wick holder 12 to prevent the evaporation of fuel when the lighter is not in use. In another construction the chamber for the wick and absorbent material is formed in the middle of the body and holes are bored at both sides of the chamber, one to receive the flint-spring and the other to receive a saddle carrying a pivoted cap covering the wick-holder and friction-wheel. The cap may be held in the open and closed positions by a spring. Suitable synthetic plastic materials include cellulose ethers and esters, the urea-formaldehyde phenolurea and polyhydricalcohol-polybasic acid types of resins, and compositions containing compressed fibre, a preferred material being that sold under the Registered Trade Mark "Cutalin."
Patent GB-1492859-A (GB)
Title: Inflation valves for inflatable articles
IPC: F16K15/20
Filed: 1975-02-28
Abstract: 1492859 Valves UNION-MITTELLANDGUMMI GmbH 28 Feb 1975 [5 March 1974] 8496/75 Heading F2V In order to prevent snow formations in an inflation valve for a rubber dinghy injected by liquefied gas, the valve closure member 11 is made of a low heat conductivity material, e.g. polyamide reinforced if necessary with glass fibre, and extending, in the open condition, to the inner end of the housing so that the housing is not subjected to the greatly cooled gas which emerges from the passage through the valve member. An elastomeric 0-ring 2 acts as a stop for the valve member.
Patent GB-1096635-A (GB)
Title: Liquefaction of natural hydrocarbon gases
IPC: F25J3/06
Filed: 1966-02-25
Abstract: 1,096,635. Liquefying natural gases. LUMMUS CO. Feb. 25, 1966 [Feb. 25, 1965], No. 8510/66. Heading F4P. Partial liquefaction of about one-third of natural hydrocarbon gas leaving a compressor 1 is effected by passing it through a line 52 and heat exchangers 7, 11 cooled by an expanding refrigerant where the gas is cooled to its normal boiling point, expanding to atmospheric pressure in a three stage expander 16 thereby liquefying about half the coated gas, withdrawing said liquid which is ethane-rich methane through a line 22, withdrawing uncondensed gas through lines 17, 18, 20, passing at least half this gas through a line 23 and adding it to the remainder of the gas from compressor 1 and further compressing the gas mixture at 24 and returning it to the well head at about 2000 p.s.i. The remainder of the gas leaving expander 16 is passed through lines 14, 19 and heat exchangers 10, 84 for use as fuel gas at two different pressures.
Patent GB-919331-A (GB)
Title: Improvements in and relating to heat exchangers and steam generators
IPC: F22B1/08
Filed: 1958-03-17
Abstract: 919,331. Tubular heat-exchangers for vapour generators; superheaters. CLARKE, CHAPMAN & CO. Ltd., and WOODESON, J. B. March 10, 1959 [March 17, 1958], No. 8560/58. Classes 64 (3), 123 (2) and 123 (3). Heat-exchange apparatus, e.g. for a steam generator, comprises one or more banks 2 of parallel flow ducts 2 extending between two gas mains as shown at 1 (Fig. 2), e.g. for hot gases produced in a nuclear power plant, each duct accommodating one or more helical tube coils disposed axially therein and having the ends of the coil, or coils, projecting laterally through the wall of the duct. Each pair of laterallyextending coil ends is disposed in the same transverse plane of the duct which is made of sections with their ends transverse to the duct axis, each section end having two semi-circular recesses 37 which register in ends located against one another to embrace the laterallyextending ends of a coil, or coils. Coils disposed at the same level in the various tube banks may be connected to common upper and lower headers 5, 6, Fig. 2, or separate headers may be provided for the corresponding coils in each bank. Fig. 3 shows a steam generator in which each duct 2 accommodates superheater, evaporator, and economizer coils 13 ... 15, respectively, with their uppermost ends 16... 18 extending radially through the wall of the duct and their lowermost turns connected by return bends 21-23 to axial tubes 24-26, the upper ends 27-29 of which extend through the wall of the duct 2 diametrically opposite the ends 16 ... 18. The feed ends 29 of the several economizer coils 15 are connected to a common header 9 having a branch 10 leading to a feed pump, not shown, the ends 18 of these coils being connected in parallel to a header 11 communicating with a steam and water drum 12. The evaporator and superheater coils 14, 13 are similarly connected by common headers 19, 20, 30 to the drum 12, the outlets 16 of the superheater coils 13 leading to a common steam output header 31. If desirable the headers 11, 19, 20, 30 may be omitted in which case the tube ends 18, 28, 17, 27 are connected directly into the steam drum 12. Two series of coils may be disposed one adjacent the entry and the other near the discharge of the ducts for the generation of high and low pressure steam. Alternatively the coils of the two series may be intermingled. If the duct is made with an angled form the ends of the sections are correspondingly inclined. A twisted swirler strip may be arranged lengthwise centrally within each coil.
Patent GB-424534-A (GB)
Title: Selector arrangement for direct call telephone systems
IPC: H04M9/00
Filed: 1934-03-19
Abstract: 424,534. Intercommunication systems. MOSER, O., 53, Tillierstrasse, Berne, Switzerland. March 19, 1934, No. 8575. Convention date, March 29, 1933. [Class 40 (iv)] [See also Group XXXVII] The finger dial N of an impulse transmitter is used both for establishing connections through a main automatic exchange and for setting a local intercommunication selector, the arrangement being such that a pin and pawl coupling C, D, normally inserted between the dial and selector arm gearing W when the receiver is raised, is disconnected through linkage X, G when an exchange key P is depressed to calling position, but may be again inserted to permit the establishment of an interim local call by the depression of a key V which moves the exchange key to an intermediate holding position. If the selector arm is off normal when the dial is operated for a new call it is first restored by the engagement of a friction disc K with lever F which withdraws holding pawl S.
Patent GB-560893-A (GB)
Title: Improvements in or relating to pneumatic tyres and methods of making the same
IPC: B29D30/00
Filed: 1941-07-07
Abstract: A pneumatic tyre is made by impregnating tyre-fabric with latex, depositing rubber from heat-sensitized latex on to the impregnated fabric to form a skim-coating thereon forming such fabric into tyre plies, compounding, heat-sensitizing and gelling latex to produce an unmasticated tyre tread which is assembled with the fabric plies, beads &c. and the tyre vulcanized. Triple-centrifuged latex may be used for coating the fabric to improve adhesion which may be further enhanced by pre-treating with latex-casein adhesive.
Patent GB-116545-A (GB)
Title: Improvements in and connected with Aerial Ropeways.
Inventor: HOYLE JOHN KELVIN
IPC: E01B25/16
Filed: 1917-06-15
Abstract: 116,545. Hoyle, J. K. June 15, 1917. Rope railways; travelling ropeway conveyers.-A rope railway in which the carrier rope is endless has the supports built up of units. The topmost unit has a transverse support f carrying guidepulleys at each end being adjustable in height practically through the height of the unit. At the terminal stations the carrier rope is led below the height of the fixed support and passes round a drum fixed near the level of the ground. 'rhe fixed guide-rail is carried on similar unit supports. A rope grip suitable for negotiating sharp bends consists of a frame t carrying a central runner wheel w and pivoted grips s at each end; x, x are lateral guides.
Patent GB-821116-A (GB)
Title: Improvements in jet engines and in particular turbo-jet engines
IPC: H02P23/00
Filed: 1957-03-15
Abstract: 821,116. Automatic control systems. SOC. D' EXPLOITATION DES MATERIELS HISPANO-SUIZA. March 15, 1957 [March 17, 1956], No. 8669/57. Class 38 (4). In a turbo-jet regulating system in which the fuel valve is controlled by that of two parameters, one of which is engine speed, the value of which is most alarming, a further signal from an accelerometric device is applied to the system in order that positive acceleration tends to reduce the flow of fuel. Fuel valve 15, Fig. 1, is controlled either by tachometer alternator 6 or thermocouple 7 through differential circuits 10, 11 to which reference voltages determined by lever 5 are supplied and selector switch 13 which is controlled by the output of comparator 12 to apply speed error or temperature error signals to servo amplifier 17. A speed derivative obtained across a condenser 107, Fig. 7, of unit 100 is modified according to pressure at the intake of the compressor by a bellows operated potentiometer wiper 109 to provide altitude correction. This reinforces the valve closing derivative which is then applied to the servoamplifier and at the same time weakens a second derivative feed to the comparator 12. The signal to the comparator is sufficient to hold the regulator on speed control during acceleration.