baber/WOPTO huggingface dataset:
Patent GB-937383-A (GB)
Title: Electric air-heating system with heat storage
IPC: F24H7/04
Filed: 1960-10-13
Abstract: 937,383. Heat-storing apparatus. M. J. FRENCH. Oct. 11, 1961 [Oct. 13, 1960], No. 35021/60. Class 64 (2). Heat-storage apparatus comprises a mass 4 of high thermal capacity housed in an insulated duct 1, a fan 5 for passing air through the duct, a heater 10 for heating the air prior to its entry into the duct and means for reversing the flow of air and distributing the hot air so obtained. In operation, the fan 5 and electric heater 10 switched on to supply heated air to the storage material 4 until the temperature at one end 2 of the duct rises to a predetermined value when a thermostat 8 switches off the fan and heater. The end 2 may communicate with either atmosphere or a system of return air ducts in a building. When heated air is required the fan is run in the reverse direction to draw air through the duct and supply hot air through the end 3 of the duct to an air distribution system. The air temperature is then controlled by means of a bulb 9 filled with volatile liquid and connected with a tube 12 which controls the position of a flap valve 6 admitting unheated air to the duct. The heater 10, is switched on by a device 7 when the temperature falls to a predetermined value. The mass 4 of storage material may be composed of pebbles or hollow tiles and the duct may be composed of or lined with lightweight concrete. Instead of a reversible fan, two fans one at each end of the duct may be employed.
Patent GB-1118412-A (GB)
Title: Filter elements
Inventor: REEDER FRANK
IPC: A24D3/02
Filed: 1964-08-27
Abstract: Cigarette filter elements are made by forming a band or web of filaments or fibres, applying to the band or web a liquid adhesive containing a synthetic polymeric material, condensing the band or web into a cylindrical shape and allowing the adhesive composition to set.  The band or web may be carded, and the filaments or fibres may be crimped.  They may be of cellulose acetate, regenerated cellulose, polyesters, polyamides, acrylonitrile polymers, regenerated proteins or natural fibres such as cotton.  The adhesive may be dissolved in a volatile solvent or mixture, dispersed in water or dissolved in a non-volatile solvent that is a plasticizer for the fibre. Synthetic polymers referred to are: polyvinyl butyral; polymers of vinyl chloride, vinyl acetate, vinylidene chloride or styrene, acrylonitrile/styrene copolymers, nylon, polytretramethylene oxide, polyvinyl alcohol, polyethylene glycols; latices of polyvinyl acetate, polyalkoxyalkyl acrylates or methacrylates, plasticized polyvinyl chloride and copolymers thereof, copolymers of budadiene with styrene or acrylonitrile or both.ALSO:Cigarette filter elements are made by forming a band or web of filaments or fibres, applying to the band or web a liquid adhesive containing a synthetic polymeric material, condensing the band or web into a cylindrical shape and allowing the adhesive composition to set.  The band or web may be carded, and the filaments or fibres may be crimped.  They may be of cellulose acetate, regenerated cellulose, polyesters, polyamides, acrylonitrile polymers, regenerated proteins or natural fibres such as cotton.  The adhesive may be dissolved in a volatile solvent or mixture dispersed in water or dissolved in a non-volatile solvent that is a plasticizer for the fibre. Synthetic polymers referred to are: poly vinyl butyral; polymers of vinyl chloride, vinyl acetate, vinylidene chloride or styrene, acrylonitrile, styrene copolymers, nylon, polytetramethylene oxide, polyvinyl alcohol, polyethylene glycols; latices of polyvinyl acetate, polyalkoxy-alkyl acrylates or methacrylates, plasticized polyvinyl chloride and copolymers thereof, copolymers of butadiene with styrene or acrylontrile or both.
Patent GB-513576-A (GB)
Title: Improvements in or relating to the production of fusible soluble resins
IPC: C08G8/28
Filed: 1938-01-07
Abstract: 513,576. Soluble resins. ROSENBLUM, I. Jan. 7, 1938, No. 35224/37. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 20, 1938.] [Class 2 (iii)] Fusible phenolic resins insoluble in water but soluble in organic solvents are prepared by condensing a phenol and an aldehyde to the intermediate stage and effecting further condensation and resinification of the condensate in the presence of sulphuric acid and a non- resinous terpene compound capable of taking part in the resinification process. The sulphuric acid is ultimately removed from the product. The amount of terpene compound may be equal to or greater than the amount of phenol. Thus, a resin derived from the interaction of 100 parts of butyl phenol 30 parts of 40 per cent. formaldehyde solution and 30 parts of dipentene, by weight, with zinc acetate as catalyst, is treated with a further 65 parts by weight of dipentene which brings the dipentene proportion to the ratio of 1 mol. of dipentene to 1 mol. of butyl, phenol, thinned with high-flash naphtha, and 44 parts of 96 per cent. sulphuric acid. On settling, a two layer system is formed, the lower layer being practically all sulphuric acid ; the upper layer is neutralized with caustic soda and again acidified till no organic sodium salt is present. The mass is then washed with water and steam distilled at 230‹C. to remove non-combined solvents and reactants. A resin yield of 90-100 per cent. based on the combined weights of the phenol and terpene material is obtained. Instead of dipentene, terpineol may be used. Specification 416,476 is referred to.
Patent GB-1364435-A (GB)
Title: Tube squeezers
IPC: B65D35/28
Filed: 1971-10-13
Abstract: 1364435 Collapsible tubes L TAYLOR and T J TIER 13 Oct 1971 [21 July 1970] 35329/70 Heading B8D A device for squeezing collapsible tubes comprises two plastics body parts 1 and 2 which are hinged at 3 so that the parts may be closed into a generally parallel disposition, co-operating toothed rollers 4 and 5 journalled in slotted side wall extensions of the respective body parts 1 and 2, and opposed transverse tube-receiving slots 9 and 7 extending through each body part and alignable with the bight between the rollers. Latching portions 10 and 11 provided on the respective body parts are adapted to abut in the event of excessive flexing thereof when accommodating tubes of increased tube wall thickness. Similarly support surfaces 13 and 14 are located adjacent the rollers to prevent excessive bending of the rollers. The slot 7 is formed with a recess 8, Fig. 2 (not shown), to accommodate the full part of the tube to be collapsed.
Patent GB-759469-A (GB)
Title: Improvements relating to the manufacture of titanium clad steel
IPC: B23K35/00
Filed: 1954-05-03
Abstract: 759,469. Making compound plates. LUKENS STEEL CO. May 3, 1954 [May 7, 1953], No. 35376/55. Divided out of 759,413. Drawings to Specification. Classes 83 (2) and 83 (4). A pack for making a titanium-clad steel plate, as by rolling, comprises a backing plate of steel, a facing sheet of titanium electrodeposited with a coating of iron or nickel on the surface to be bonded and covered by a second sheet of steel with an intermediate layer of parting material. The periphery of the pack may be hermetically sealed at the edges and provided with passageways for inert gas as described in Specification 759,413. Specification 759,468 also is referred to.
Patent GB-1471749-A (GB)
Title: Mechanism for driving a rotating jumping member in a timepiece
IPC: G04B19/253
Filed: 1974-08-12
Abstract: 1471749 Watches EBAUCHES SA 12 Aug 1974 [20 Aug 1973] 35387/74 Heading G3T A mechanism for providing intermittent rotation of a timepiece indicator comprises an oscillatory pallet 25 having two beaks 29, 30 which co-operate both with a cam 10 fast with a continuously rotated driving member 11 and with jumping member 1 which is coaxial with the driving member and coupled thereto by a spring 16. Each beak comprises a locking face 31 or 32 to engage teeth 2 of the jumping member, and a tip 33 or 34 to engage lugs 19 of the cam 10. As shown the member 11 is driven clockwise by its toothing 12 but the member 1 is held by face 31 of entry beak 29 so that the spring 16 becomes tensioned. The force exerted by tooth 2a tends to rotate the pallet clockwise so that tip 34 of exit beak 30 is held against the cam surface. As the driving member and cam rotate, the beak 30 is allowed to move clockwise until tip 33 clears the tooth 2a and the member 1 is turned through one half pitch by the spring 16, bringing tooth 2b against the face 32. The pallet is then rotated anti-clockwise so that tip 33 engages a lug 19 until freed as the cam advances to permit the next jump. The arrangement may alternatively be such that the same beak co-operates simultaneously with the jumping member and the cam. The mechanism may be used in a calendar watch or to drive a hand or a digit disc in a watch or chronograph.
Patent GB-982184-A (GB)
Title: Method and apparatus for stretching films of synthetic thermoplastic material
IPC: B29C55/16
Filed: 1961-09-29
Abstract: 982,184. Stretching thermoplastic films. DYNAMIT NOBEL A.G. Sept. 29, 1961 [Dec. 24, 1960], No. 35402/61. Heading B5B. A film of synthetic thermoplastic material is stretched simultaneously longitudinally and transversely, the transverse stretching being effected by means of a stenter frame, and the longitudinal stretching being effected by means of a plurality of rollers generally disposed in the direction of travel of the film and displaced vertically apart from each other so as to cause the film to be stretched as it passes over one roller and under the succeeding roller. The degree of stretching may be varied by adjustment of the width of the stenter frame, and of the vertical displacement of the rollers relative to each other. In one embodiment (Figs. 1 and 2), a thermoplastic film 1 e.g. of polymethylene terephthalate, travels from roller 2 into stenter frame 3 guided by pin chains. The film is then gripped by clips 4 (Fig. 3) and transversely stretched. Adjustable frames 5 carry rollers 7 on support 6. The film passes under and over successive rollers 7 and is thereby longitudinally stretched while being gripped at the edges by clips 4. Before clips 4 release the stretched film, the edge 9 of the film is severed by cutting device 8. The film is drawn off by roller pair 10 and wound up at 11.
Patent GB-761035-A (GB)
Title: Improved method of preparing a sand-core for foundry-use
IPC: B22C1/24
Filed: 1954-12-07
Abstract: In the preparation of sand cores as described in the parent Specification, a chlorite is added to the mixture, before forming it to shape, in the proportion of 0.01 to 5 per cent by weight of the oil.  For example the mixture may comprise quartz sand, linseed or oiticica oil (containing cobalt and lead naphthenates), quartz flour and lead chlorite.  Instead of oils there may be used the corresponding esters of other polyvalent alcohols, a number of which are specified, to which may be added driers such as oil-soluble compounds of manganese, lead, cobalt, zirconium or cerium.
Patent GB-1197593-A (GB)
Title: Improvements in or relating to Semiconductor Devices and Circuits
Inventor: BERGLUND CARL NEIL
IPC: H01L29/739
Filed: 1967-08-03
Abstract: 1,197,593. Semi-conductor devices. WESTERN ELECTRIC CO. Inc. 3 Aug., 1967 [10 Aug., 1966], No. 35611/67. Heading H1K A semi-conductor body 11 having regions 12 13 of opposite conductivity type, is provided with an electrode 17 capacitively coupled to one of the regions 13, which is degenerately doped so as to permit tunnelling therein, further electrodes 14, 15 being connected ohmically to the regions 12, 13. When a suitable potential is applied between electrodes 15, 17 an electric field is induced at the interface of the region 13 and the dielectric layer 16, producing tunnelling of minority carriers from the valence to conduction band (or vice versa), to provide a stored minority carrier concentration at the interface, and the resultant minority carrier injection current in the region 13 is modulated by modulating this potential (see Fig. 2, not shown). The collector junction 21 is biased in the reverse direction. The semiconductor body 11 may be of Si, e.g. doped with B by diffusion, Ge or III-V or II-VI compounds, the dielectric layer 16 being of silicon nitride or oxide, tantalum oxide or aluminium oxide. The electrode 17 may be of Cr overlaid with Au.
Patent GB-175487-A (GB)
Title: Method of building reinforced concrete and composite vessels
IPC: B63B5/16
Filed: 1920-12-18
Abstract: 175,487. Newton, G. C., and Newton, R. E. Dec. 18, 1920. Concrete vessels.-Relates to reinforced concrete or composite vessels built up with pre-cast concrete or pre-fabricated steel ribs and frames. According to the invention the ribs 1, Figs. 1, 3, and 6 are formed with outwardly-projecting skin reinforcements 15 which extend, as shown at 16, in the plane of the skin; the ribs are also provided with means, such as embedded nuts or holes, to take removable bolts &c. for supporting inner and outer mould forms, as shown in Fig. 6. By this means when the ribs are of pre-cast concrete, the skin may be cast with a different kind of concrete. The ribs may be formed with grooves, and the inner skin forms chamfered, as shown at 28, 28<1>, Fig. 6, so as to form a more effective connection between the outer skin concrete 9 and the ribs. The forms are held in position by the aid of studding 20 and girts 21, as shown.
Patent GB-1413602-A (GB)
Title: Ion sources
IPC: H01J27/00
Filed: 1973-07-26
Abstract: 1413602 Ion beam sources ATOMIC ENERGY OF CANADA Ltd 26 July 1973 [24 Oct 1972] 35675/73 Heading H1D A conventional duoplasmation ion source is modified by the interposition of a "scraper" electrode 28 between the expansion cup 18 and the extractor electrode 19, the scraper electrode having an aperture whose diameter #s is slightly less than the plasma aperture diameter #p and the object is to remove the outer layer of ions which are said to contribute most to the transverse momentum content of the beam. The voltage on the scraper electrode is typically 300 volts for a source of 6 mm. diameter and the voltage should be chosen so as not to disturb the electric field which would prevail in the absence of the scraper electrode.
Patent GB-1035184-A (GB)
Title: Dimensionally stable gelatin-containing film product
Inventor: CORYELL GEORGE MYER
IPC: G03C1/81
Filed: 1961-10-04
Abstract: 1,035,184. Photographic silver halide material. EASTMAN KODAK CO. Oct. 2,1962 [Oct. 4, 1961],No.35727/61. Heading G2C. Photographic material comprises a synthetic polymeric support coated on one side with a gelatino-silver halide emulsion layer and on the other side with a gelatin layer, the coating weight of gelatin in each layer not exceeding 0.45 g per square foot. The support is preferably of polyethylene terephthalate or biaxially oriented polystyrene and may be 0.004-0.008 inches thick. It may be subbed, for example with cellulose nitrate. The emulsion layer preferably contains from 0.25-0.35 g per square foot of gelatin.
Patent GB-927969-A (GB)
Title: Process for preparing a supported catalyst for the stereospecific polymerisation of alpha-olefins
IPC: C08F4/68
Filed: 1961-10-05
Abstract: Polymers of alpha-olefins are made by polymerizing alpha-olefins in the gaseous phase using a supported catalyst made by impregnating a support consisting of an inorganic compound, soluble in water or in a washing agent for the polymer, with an organometallic compound of a metal of Group I, II or III of the Periodic Table, reacting the impregnated support with sufficient of a compound of a transition metal of Group IV, V or VI of the Periodic Table in which the metal has its maximum valency to ensure reduction of the transition metal compound to the next lower valency state only, heating the product to a temperature of 150 DEG C. or more, and then adding an organometallic compound of a metal of Group I, II or III of the Periodic Table.  The added organometallic compound may be impregnated on a support, e.g. polypropylene.  The inorganic support compound may be calcium carbonate, calcium chloride, or sodium chloride.  The organometallic compound may be lithium butyl, beryllium diethyl, zinc diethyl, aluminium triethyl, triethyl aluminium etherate, diethylaluminium monochloride, or diethylaluminium monoiodide. The transition metal compounds may be titanium or vanadium chlorides. The supports are generally removed by an aqueous-alcoholic acid solution.  The alpha-olefin may be propylene or butene-1.  The polymerization may be effected continuously, and the catalyst is preferably employed in the form of a fluidized bed.
Patent GB-1018956-A (GB)
Title: Improvements in high capacity water-tube boilers
Inventor: ANSCHUTZ OTTO
IPC: F22B31/04
Filed: 1962-09-20
Abstract: 1,018,956. Water-tube steam boilers. L. & C. STEINMULLER G.m.b.H. Sept. 20, 1962, No. 35906/62. Heading F4A. A water-tube boiler of high capacity has two slag tap combustion chambers 1, 2 each fired by upper and lower rows of pulverized fuel burners 20, 19, the gases from the chambers flowing through respective slag screens 13, 14 into respective vertically extending radiation chambers 3, 4 separated by a tube wall 5 which is gas-tight except at the top where the wall tubes are offset to provide a screen 15. Opposite this screen the chamber 3 communicates with parallel downpasses 7, 8 containing contact heating surfaces through a screen 16. Gas flow is proportioned between the downpasses for control purposes by dampers 21 after which the gas streams combine for flow through an air heater 9. At low loads, i.e. under 50% of full load, only the chamber 1 is fired using both upper and lower stage burners 20, 19. At lower loads, i.e. under 25% of full load, only the lower stage burners are used in this chamber. Under these reduced load conditions slag deposition in the non-operative radiation chamber 4 is avoided since the slag particles solidify before they reach the level of the screen 15 and are swept with fly ash into the downpasses to separate from the gases as they turn on leaving the passes to enter the air heater. The combustion chamber 2 can thus be brought into operation when the load increases above 50% F.L. without difficulties in slag discharge.
Patent GB-914469-A (GB)
Title: An improvement in or relating to means for connecting implements to tractors
Inventor: ASHFIELD HERBERT EDWARD
IPC: B62D49/02
Filed: 1960-10-21
Abstract: 914,469. Tractor power lift linkage mechanisms. BROWN TRACTORS Ltd., DAVID. Sept. 29, 1961 [Oct. 21, 1960], No. 36094/60. Class 79(1). A headstock for connecting a semi-trailed implement to the three point hitch linkage of a tractor having automatic draft control comprises a member 11 having at one end forwardly extending plate members 12, 13 provided with three vertically spaced pairs of holes to any pair of which the rear end of the tractor upper link is pivoted, a member 17 to which is secured a cross shaft 10 for connecting to the lower links of the tractor and a trunnion 18 pivoted to the member 18 and adapted for pivotally supporting the frontend of a semi-trailed implement frame. According to the Provisional Specification the implement has an adjustable ground wheel operable by an hydraulic jack in sympathy with variations in the automatic draft control mechanism.
Patent GB-1073115-A (GB)
Title: Method for reprocessing mother liquors derived from the precipitation of plutonium by oxalic acid
Inventor: BATHELLIER ANDRE
IPC: G21C19/46
Filed: 1965-08-23
Abstract: 1,073,115. Plutonium recovery. COMMISSARIAT A L'ENERGIE ATOMIQUE. Aug. 23, 1965 [Aug. 25, 1964], No. 36140/65. Heading G6R. Plutonium is recovered from aqueous solution by extraction with a solution of trilaurylamine in an organic solvent, transfer to the aqueous phase by contacting with sulphuric acid or a mixture of sulphuric and nitric acids, addition of oxalic acid to precipitate plutonium oxalate, and recycling the precipitation mother liquor to the trilaurylamine extraction stage. If the oxalic acid concentration of the mother liquor is above 0À24 N, ferric nitrate is added to prevent precipitation of plutonium oxalate. The original plutonium-containing solution may be derived from the dissolution of nuclear fuels or plutonium slags obtained by reduction of plutonium fluoride by an alkaline earth metal.
Patent GB-1247397-A (GB)
Title: Imidazolidinedione herbicides
Inventor: SINGER MALCOLM SCOTT
IPC: C07D233/96
Filed: 1969-07-17
Abstract: 1,247,397. Herbicides containing imidazolidincdiones. CHEVRON RESEARCH CO. 17 July, 1969 [17 July, 1968], No. 36164/69. Heading A5E. [Also in Division C2] Herbicidal compositions contain I as active ingredient (Y is O or S, R<SP>1</SP> is a C 1   to   10  aliphatic or cycloaliphatic radical optionally substituted by F, Cl, Br or C 1   to   4  alkoxy, R<SP>2</SP> is a C 6 to   15  aryl radical optionally substituted by up to two F, Cl, Br, NO 2  and/or C 1 to 4  alkoxy and R<SP>3</SP> is H or carbamoyl in which the nitrogen is monosubstituted by a C 1   to   10  hydrocarbyl radical). Stabilizers, conditioners, fillers and other pesticides may also be included in the compositions.
Patent GB-1092789-A (GB)
Title: Keyboard overlay
IPC: B41J5/10
Filed: 1966-08-12
Abstract: 1,092,789. Selective printing. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 12, 1966 [Sept. 20, 1965], No. 36167/66. Heading B6F. Keyboard operators.-A typewriter associated with a computer has a keyboard in which the keys when depressed generate a binary code signal representative of the character associated with the depressed key and in order to type Chinese or Greek characters the keyboard is provided with an overlay having a graphic representation of the characters associated with the respective keys. Overlay comprises four frames 10-1, 10-2, 10-3, 10-4 articulated to one another by flat rings 30 so that each frame is disposed above the respective key row and each frame, such as 10-1, is latticed by transverse bars 20-1 .. . 20-13, to define areas for registration with a corresponding key. Transverse bars support a plastics, flexible strip having a graphic representation of the character associated with a respective key and the flexibility of the strip permits unhindered depression of the keys, which support the overlay when the latter is placed over the keys. In another embodiment (Fig. 2), the rings 30 may be replaced by frame members 32-1, ... 32-3, stamped out from a metal or plastic stock.
Patent GB-339104-A (GB)
Title: An improved sheathing for electric cables
IPC: H01B7/22
Filed: 1929-11-26
Abstract: 339,104. Beaver, C. J., Dixon, N., and Glover & Co., Ltd., W. T. Nov. 26, 1929. Armouring cables.-A sheathing for multicore electric cables comprises metallic strands laid spirally round the cable in the direction of lay of the twisted conductors, the metallic strands being interlaced with strings of fibrous material laid in an opposite direction. In the embodiment, spirally laid conductors c surround a rubber core b formed with a central pilot conductor a. A rubber sheathing d covers the core so formed, and a metallic sheathing laid over the sheathing d is formed of members e, f, each consisting of four twisted strands, the members e, of metal having the same direction of lay as the conductors c, and the members f, of string, an opposite direction of lay.