baber/WOPTO huggingface dataset:
Patent GB-1500880-A (GB)
Title: Process for producing perfluorolactone
IPC: C07D305/12
Filed: 1976-09-16
Abstract: 1500880 Perfluorolactones ASAHI GLASS CO Ltd 16 Sept 1976 [23 Sept 1975] 38457/76 Heading C2C Perfluorolactones of general formula where n = 2-4, are prepared by reacting with fuming H 2 SO 4 , where X is a halogen atom, -OR or -NR<SP>1</SP>R<SP>2</SP> group in which R, R<SP>1</SP> and R<SP>2</SP> are each H or C 1-10  alkyl. Preferably the acid fluoride is used and reacted with fuming H 2 SO 4  containing 20-60 wt. per cent SO 3  in the presence of a catalyst chosen from mercuric sulphate, cadmium sulphate or zinc sulphate and optionally a catalytic amount of Cl 2 . The reaction is preferably conducted at 60-110‹ C. for 2-10 hours. In the examples perfluoro-γ- butyrolactone is obtained from I(CF 2 ) 3 CO 2 CH 3 , I(CF 2 ) 3 COF and I(CF 2 ) 3 CONHC 2 H 5 . Perfluoro- 8-valerolactone is obtained from I(CF 2 ) 4 COF.
Patent GB-1446006-A (GB)
Title: Press for shaping comestible products
IPC: A22C7/00
Filed: 1973-08-14
Abstract: 1446006 Moulding press BETTCHER INDUSTRIES Inc 14 Aug 1973 [31 Aug 1972] 38471/73 Heading B5A Combustible products such as meat are compressed in a cavity E, Fig. 4, formed between a stationary die 14 and a vertically movable die 30, by a ram F of a cross-section corresponding to that of the cavity and driven by a piston and cylinder 140, 142. The end of the cavity opposlte the ram is closed during compression by a plate 158 movable with the die 30. The die 14 is clamped to a stationary plate 10 supporting a toggle mechanism and drive means 54 therefor, to vertically reciprocate the die 30, which is clamped to a platen 34 from which extend rods 40-46 passing through the plate 10 and connected to bearing supports 48, 49. The toggle mechanism D comprises two sets of links 70, 72 and 88, 100 interconnected by links 110, 112, one set pivotally connected between the support 48 and brackets 76 on the plate 10, and the other between the support 49 and a fixed support 60 on the plate. The toggle mechanism is driven by a double acting piston and cylinder motor 127 pivotally mounted at (128), Fig. 5, not shown, on the support 60, with the end of its piston-rod pivoted by a bearing (122) to the centre of the links 110, 112. The motor axis is inclined to the direction of movement of the die 30, such inclination becoming progressively less as the die is lowered. After compression by the ram the upper die is raised and the ram again operated to push the product on to a plate. Instead of a single die cavity, the opposed dies may provide a number of laterally spaced cavities (180a, 180b, 180c) Fig. 2, not shown, each cooperating with an upper movable die portion. A ram is provided for each cavity and the rams are driven by separate motors.
Patent GB-1445430-A (GB)
Title: Process for the production of alpha-olefins
IPC: C07C11/02
Filed: 1973-08-15
Abstract: 1445430 Olefin oligomerisation catalysts SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 15 Aug 1973 [17 Aug 1972] 38576/73 Addition to 1353873 Heading B1E [Also in Division C5] A catalyst is produced by contacting a divalent Ni salt, a boron hydride and dicyclohexylphosphinopropionic acid or an alkali metal salt thereof in the presence of ethylene and a polar organic solvent e.g. ethylene glycol or -propylene glycol. Exemplified are catalysts produced by reacting NiCl 2 . 6H 2 O, the K salt of dicyclohexylphosphino propionic acid and NaBH @  in ethylene glycol, propylene glycol and mixtures thereof.
Patent GB-1379833-A (GB)
Title: Method for drying wet powder particles
IPC: B29B9/00
Filed: 1972-08-18
Abstract: 1379833 Drying of wet powder particles KUREHA KAGAKU KOGYO KK 18 Aug 1972 [18 Aug 1971] 38588/72 Heading F4G Particles (including agglomerated masses) of synthetic polymer are fed at 4 into a vertical cylinder 3 having a conical section 1 provided with an inlet 2 for hot high speed gas, and are thereby broken up and dried, and then conveyed via tube 5 to a cyclone separator 6. The crosssectional area of the cylinder 3 is from 10 to 100 times that of the inlet 2, the vertex angle of the conical section 1 is from 50 to 70 degrees, and the total length of the cylinder 3 is at least 0À05 v + 3 metres where v is the speed in metres/sec. of the gas at the inlet 2. The temperature of the hot gas is from 70‹ to 200‹ C. and its speed is from 40 to 150 metres/sec. The speed of the gas in the cylinder is from 1À5 to 5À0 metres/sec. The length of cylinder between the inlet 4 and outlet end of the cylinder is at least 3 metres, and the inlet 4 should be at a distance from the inlet 2 between 1/2 and 1/20 of the cylinder diameter but not greater than 1/10 of the cylinder length. Examples are described.
Patent GB-822830-A (GB)
Title: Improved processes for the reaction of silanic hydrogen-bonded compounds with unsaturated compounds
IPC: C07F7/14
Filed: 1956-12-20
Abstract: A catalyst for the reaction between hydrogenosilanes and organic compounds containing olefinic or acetylenic unsaturation consists of platinum on a support of gamma-alumina which is of at least 99.99% purity.  The starting silanes are of the formula <FORM:0822830/IV (a)/1> where R is alkyl or aryl, X is halogen or alkoxy, a is 0, 1 or 2, b is 1, 2 or 3, and a + b is less than 4.  Example of unsaturated compounds are ethylene, acetylene, styrene, propylene, butenes, octenes, butadiene, cyclohexene, bicycloheptene, and allyl chloride. Comparisions are given in the ethylation of dichlorosilane with platinum on other supports, viz. a mixture of 90% gamma-alumina and 10% magnesium oxide (Spinel Boule powder), silica, an ethyl polysiloxane, silicon oxyhydride (trichlorosilane hydrolysis product), alpha-alumina and polyvinyl siloxane.  Also described are the preparation of vinyltrichlorosilane from acetylene and trichlorosilane, the latter containing up to 3.3% of dichlorosilane and up to 5.1% SiCl4; reactions of ethylene with mixtures of di- and tri-chlorosilane; acetylene and dichloroethylsilane; styrene and dichloroethylsilane; acetylene and dichlorosilane; and allyl chloride and trichlorosilane.  The products from these reactions include EtViSiCl2, beta - phenylEtSi (Et)Cl2, ViSiHCl2, (ViSiHCl2)n, Vi2SiCl2, ViSi Cl2CH2CH2SiHCl2, C3H7SiCl3 and ClCH2CH2 CH2SiCl3. Specification 670,617, [Group IV (b)], is referred to.
Patent GB-931294-A (GB)
Title: Improvements in photographic processes
Inventor: SMITH ERIC THOMAS
IPC: G03C5/305
Filed: 1959-11-12
Abstract: 931,294. Stabilizing photographic images. KODAK Ltd. Nov. 11, 1960 [Nov. 12, 1959], No. 38912/60. Divided out of 931,293. Class 98 (2). A developed photographic silver halide emulsion layer is stabilized by treatment with a one to five times normal solution of an alkali metal or ammonium thiocyanate containing also a compound providing PO 4  ions. The latter compound may be an alkali metal or ammonium phosphate such as disodium hydrogen phosphate, or it may be phosphoric acid. The stabilizing solution also may contain sodium thiosulphate. In the examples, the solutions also contain potassium metabisulphite, sodium sulphite and acetic acid. The emulsion layer may also be treated with a thiol compound as described in Specification 931,293, for example, the thiol compound may be added to the developer solution and the developed image stabilized according to the present invention.
Patent GB-1478395-A (GB)
Title: Apparatus for supplying a mixture of fuel and air to a combustion chamber
IPC: F23R3/14
Filed: 1974-09-06
Abstract: 1478395 Burners GENERAL ELECTRIC CO 6 Sept 1974 [10 Sept 1973] 39043/74 Heading F4T [Also in Division F1] The invention relates to combustion equipment and to fuel and air supply thereto and is described with reference to combustion equipment of a gas turbine engine which is generally similar to that described in Specification 1,478,394 except that swirl vanes 45 are essentially provided in the primary air flow passage 40. Also the tubular member 38 which constitutes the fuel injector is of extended form, the downstream end thereof lying in the same plane as the end of the tubular member 36; also, the inner surface of the member 38 is of convergent-divergent form downstream of the fuel swirl device 44. A shroud member 70 is disposed around the radial walls 62, 64, there being openings 74, 88 to allow air to pass into the secondary and tertiary air plenums 66, 86 before entry to the swirl vanes 60, 78.
Patent GB-354673-A (GB)
Title: Improvements in or relating to ventilators
IPC: F24F7/00
Filed: 1930-12-29
Abstract: 354,673. Ventilators. ZIMMERMANN, E., 36, Rue du Milieu, Yverdon, Switzerland. Dec. 29, 1930, No. 39044. Convention date, May 14. [Class 137.] In a ventilator for stables, wash-houses and the like comprising a conduit opening at one end inside the enclosure near the ceiling and at the other end to the exterior, the conduit 3 comprises two joined parts 4, 5 turned in opposite directions, with faces 6, 7 opposite the open ends 8, 9 incurved in such a manner as to deviate the air stream through approximately 180 as shown by the arrows 10. The lower face 12 of the upper part 4 forms a baffle preventing the return of vitiated air to the enclosure. The interior opening 8 is controlled by louvres 13 and the outer opening is provided with a grating and a deflector 17 in the form of a triangular prism adjustably spaced from the opening. External air streams are deviated by the deflector and produce a suction effect at the opening 9.
Patent GB-948112-A (GB)
Title: Improvements in tape perforators
IPC: H04L13/06
Filed: 1962-10-16
Abstract: 948,112. Tape perforators. CREED & CO. Ltd. Oct. 16,1962 [Oct. 18, 1961], No.39135/62. Heading B4B. In a tape perforator, the operating arm 8 of the feed-hole punch 8b is of the same construction as the operating arms 1 of the code punches 16 and is operable in the same way as the arms 1 by energization of an electromagnet 9. The arrangement enables the punch 86 to be operative with or without operation of the punches 1b
Patent GB-1160407-A (GB)
Title: A Method of Forming a Joint Between a Tube and a Fitting.
IPC: B21D39/04
Filed: 1967-08-25
Abstract: 1,160,407. High energy jointing; jointing by tube expanding. ATOMIC ENERGY OF CANADA Ltd. 25 Aug., 1967 [9 Nov., 1966], No. 39266/67. Heading B3Q and B3W. [Also in Division F2] A method of forming a joint between a tube 3 of low-ductility material subject to brittleness subsequent to plastic distortion, e.g. Zr-Nb alloy, and a fitting 1, e.g. of stainless-steel, comprises removing material from the fitting to provide an interface area with a chosen profile 4, locating a reinforcing ring 5 against the tube and distorting the ring and tube into the interface area by a rapidly developing force, the quantity of material removed from the fitting in providing the interface area being sufficient to accommodate distorted material of the tube and ring. The ring and tube may be deformed by a high pressure impulse transmitted in water, e.g. by firing an explosive 9 in water 16 supported by a disc 15 ejected by the explosion. The ring 5, which is a press-fit in the tube, has a lower flange 6 and an upper bevel 18, and the fitting is restrained in a die 2. After deformation, Fig. 2 (not shown), the bore of the ring is not less than that of the tube and may be finished by rolling. As applied to contracting a tube 21, Fig. 3, and its reinforcing ring 25 against a fitting 22, a strip 28 of explosive is used forming a water chamber closed at one end by a ring 30. The strip is detonated on one edge simultaneously around the circumference 31 by a triangular line wave generator. During the explosive forming, the ring 25 is sheared from an extension 32 at a weakening groove 26 and contracted to the diameter of the tube, Fig. 4 (not shown).
Patent GB-1260281-A (GB)
Title: Improvements in or relating to building constructions
Inventor: ROBINSON BRIAN
IPC: E04B1/36
Filed: 1967-12-25
Abstract: 1,260,281. Screw jacks. RICHARD THOMAS & BALDWINS Ltd. 20 March, 1969 [25 Dec., 1967], No. 39319/67. Heading B8J. [Also in Division El]  A jacking device 1 comprises a screwthreaded pillar 3 formed at its lower end with a ball 3 mounted in a housing 5 defining, with a top plate 6, a spherical cavity 8. The plate 6 renders the pillar 3 captive and able to take both compressive and tensile loads without axial play. The main thrust from the load is directed along the axis of the pillar 3. The housing 5 is integral with a base-plate 9 fastened by bolts 17 into the foundation of a building with a component 14 to be aligned or levelled by the jacking device. An upper plate 11A is attached by deformed lugs to the component 14 and formed centrally with a screw-threaded hole engaged by the pillar 3. Vertical adjustment is carried out by rotating the pillar 3 using an integral nut 12. After adjustment the device is locked by a lock-nut 13. Various structural components may include the jacking device and a number of such devices may be used. They are left in position in the course of building construction and may be used for possible future levelling of the building.
Patent GB-846824-A (GB)
Title: Improvements in or relating to poultry rearing apparatus comprising brooders
IPC: A01K31/19
Filed: 1959-03-16
Abstract: 846,824. Poultry brooders. GROSSMITH, N. March 16, 1959 [Dec. 8, 1958], No. 39429/58. Class 5(2). In a brooder of the kind comprising a heated chamber 24 and a run 25 bounded by food troughs 27, 28 and a water trough 29, the wall 10 of the heated chamber is provided with a removable panel to the end that as the chicks grow, the panel may be replaced by a water trough, and the water trough 29 is then replaced by a food trough, thereby preventing overcrowding and jostling at the food troughs. The ancillary water trough (see Fig. 2) is fastened in the place of the panel by means of the hook 21 and a recess in its wall 16, the chicks gaining access to the trough via the space between the baffle 17 and the hook 21, and being prevented from drowning by bars or wires 18. Specification 845,256 is referred to.
Patent GB-1096493-A (GB)
Title: Improvements in or relating to clamping screws for screwing into electrical contact sleeves
Inventor: GODFREY WILLIAM THOMAS
IPC: H01R4/36
Filed: 1965-09-17
Abstract: 1,096,493. Terminal screws. BELLING & LEE Ltd. Sept. 17, 1965, No. 39681/65. Heading H2E. [Also in Division F2] A set-screw for clamping a wire comprises a foot portion 6, attached to the screw so as to  be rotatable with respect thereto. The portion 6 has a flat clamping face 8 having a diameter substantially equal to the root diameter of the screw thread, and a boss 5 which is received in an axial recess in the screw and secured by swaging over the wall of the recess into a groove located between the boss and the foot portion. The inner end of the recess may be conical. Another embodiment describes a cup-shaped foot portion which is secured by swaging its open end into a circumferential groove in the screw.
Patent GB-1112868-A (GB)
Title: Production of plasticiser esters
Inventor: CLAREN OTTO BERND
IPC: C07C69/80
Filed: 1965-09-17
Abstract: In a process for making esters from phthalic acid or anhydride, or an (at least C4) aliphatic saturated or olefinically unsaturated dicarboxylic acid, and an (at least C7) aliphatic alcohol, the product is neutralized with (a) 0.5-10 wt. per cent aq. NaOH or KOH solution to an extent of 80-98%, (b) 1-20% aq. alkali metal carbonate or bicarbonate solution to completion, the residence time in each stage being less than 3 minutes.  In examples, phthalic anhydride is reacted with ethylhexanol or isononanol.
Patent GB-1005880-A (GB)
Title: Ergolene and ergoline derivatives
Inventor: HOFMANN ALBERT
Filed: 1962-10-22
Abstract: The invention comprises compounds of formula <FORM:1005880/C2/1> in which R is an alkoxycarbonyl, dialkylcarbanoyl, hydroxyalkylcarbonoyl, dialkylureido or alkoxycarbonylamino-group, the alkyl groups in each case having 1 to 4 carbon atoms, a hydroxymethyl radical, or a carbonyl radical substituted by a tripeptide radical of a natural ergot alkaloid of the peptide type, and <FORM:1005880/C2/2> signifies two carbon atoms joined by a single or double bond, acid addition salts thereof, and their preparation by cyanoethylation with acrylonitrile in the presence of a proton acceptor.  The above compounds have a serotonin-inhibiting action, and may be used in pharmaceutical compositions in combination with an inert carrier.
Patent GB-1435839-A (GB)
Title: Methods of developing latent electrostatic images
IPC: G03G13/01
Filed: 1973-08-23
Abstract: 1435839 Multi-colour electro-photography RENKER GmbH 23 Aug 1973 [23 Aug 1972] 39945/73 Heading G2H  Electrostatic images, on insulating or photoconductive material having image zones with different potentials, are developed with a first toner until the image zones with the lower surface charge densities are almost completely toned and the charges remaining on the image zones with a higher surface charge density are then entirely or partially developed with a second toner. In one example, an electro-photographic paper which is differently sensitized for the three parts of the  spectrum is negatively charged and then exposed with the image of a multi-coloured master having blue, green and red raster dots on a white background to form a latent image having charge levels corresponding to the three colours in the approximate ratio 10:7:1. The exposed paper is then developed in turn in three liquid developers containing red, green and blue toners, respectively, suspended in isoparaffin carriers. The first development applies red toner to the low, medium and high charge density positions. The second and third developments are carried out in electrophoresis cells each with a copper plate anode having an applied potential so chosen as to precipitate the green toner in the second development only on the medium and higher charge density positions on top of the red toner image, and to precipitate the blue toner in the third development on the (red + green) partial image only at the positions of maximum charge density. The use of opaque toners enables the last deposited toner to obscure the underlying different colour toner or toners, so producing a multi-coloured copy. Transparent or translucent toners may be used if mixed colours are desired, e.g. red + green # dark red-black. In another example, lines are drawn on dielectric paper with a scribing electrode at two different charge levels and developed twice with two different coloured toners, the second development being effected in an electro-phoresis cell.
Patent GB-1121342-A (GB)
Title: Apparatus for coating the inner walls of elongate hollow bodies
IPC: B05B3/10
Filed: 1966-09-07
Abstract: 1,121,342. Spraying the inner walls of hollow bodies. LECHLER VERWALTUNGS G.m.b.H. and INAG INERTOL-HOLDING A.G. [trading as LECHLER BAUTENSCHUTZCHEMIE K.G.]. 7 Sept., 1966 [9 Sept., 1965], No. 39952/66. Heading B2L. Apparatus for coating the inner walls of an elongate hollow body, e.g. a pipe 11, comprises a spray device 12, 13 and a vaned fan rotor 18 having an axial suction inlet A and a radial air outlet B, the spray device being disposed so as to discharge into the suction region of the fan rotor. Additionally a dishshaped deflector plate 224 (Fig. 5) may be adjustably secured on the inner side of the fan rotor 218 for rotation therewith, with the edge of the plate in the suction region 218a of the fan rotor. The deflector plate serves to mix the components of a coating material sprayed separately from two supply tubes 226 which discharge against the middle of the inner side of the plate 224. During spraying the spray device and the fan rotor are moved axially through the pipe.
Patent GB-922448-A (GB)
Title: Process for preparing cured polymeric articles
IPC: C08F265/06
Filed: 1961-11-08
Abstract: A process for preparing cured polymeric articles comprises polymerizing methyl methacrylate monomer-polymer syrups containing a mercaptan as cross-linking agent and hydrogen peroxide, methyl ethyl ketone peroxide, a tertiary perester or a tertiary hydroperoxide as curing agent, in the presence of antimony trichloride, antimony oxychloride, antimony pentachloride or stannous chloride.  The syrup contains at least 5% by weight of polymethyl methacrylate or a copolymer of methyl methacrylate with a minor proportion of methacrylic acid or a hydroxyalkane or hydroxyalkene ester thereof. The mercaptan may be an alkyl mercaptan or a hydroxyalkane or hydroxyalkene ester of mercaptoacetic acid, e.g. glycol dimercaptoacetate.  Specified peresters and hydroperoxides are t-butyl peracetate, t-butyl perbenzoate, t-butyl hydroperoxide, p-menthane hydroperoxide and cumene hydroperoxide.  The syrups preferably comprise copper in the form of a syrup-soluble copper compound, e.g. copper naphthenate.  The syrups may be used for impregnating glass fibre reinforcements for use in construction and glazing sheets, tubes, containers and bottles, or may contain fillers, e.g. titania, silica, carbon black, polyolefin fibres, powdered metals, dyes and pigments.  A syrup is prepared by heating methyl methacrylate containing glycol dimercaptoacetate and azo-bis-isobutyronitrile, and short stopping by cooling and adding hydroquinone.  The syrup is subsequently polymerized in the presence of t-butyl hydroperoxide and antimony trichloride or pentachloride; methyl ethyl ketone peroxide and antimony trichloride or pentachloride; t-butyl peracetate or perbenzoate and antimony trichloride; and hydrogen peroxide and antimony trichloride; with and without copper naphthenate and cupric chloride.  Specification 896,805 is referred to.
Patent GB-971282-A (GB)
Title: Improvements in or relating to metal wind instruments
Inventor: KRAVKA MILOS
IPC: G10D7/10
Filed: 1962-10-23
Abstract: 971, 282. Wind musical instruments. AMATI NARODNI PODNIK. Oct. 23, 1962, No. 40125/62. Heading G5J. In a metal wind instrument, such as a French horn, a main tube 5, Fig. 1, or 15, Fig. 3 and a number of extension tubes 1, 2, 3 or 11, 12, 13 are wound in the same direction of rotation and the piston or rotary valves used for connecting the extensions provide unobstructed connecting passages of the same diameter or gauge as the tubes they interconnect. The extension tubes 1, 2, 3, Fig. 1, are pivoted about a common shaft 4 and can be connected to or disconnected from the main tube by rotation about the shaft. As shown in Fig, 2 a slidevalve controlled by a key 90 enables the player to use either the crook 2 or a straight tube 8. In Fig. 3 extensions 11, 12, 13 are controlled by rotary valves 16. A rotary valve comprises a cylindrical body 17, Figs. 4, 5, with three passages 14,18,19 as shown. In Fig. 6, three extension tubes 21, 22, 23 are controlled by a common rotary valve device 25.
Patent GB-870683-A (GB)
Title: Improvements in or relating to flexible cables
Inventor: HOWARTH ARTHUR JAMES
IPC: F16C1/00
Filed: 1958-12-12
Abstract: 870,683. Flexible shafts. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Nov. 12, 1959 [Dec. 12, 1958], No. 40235/58. Classes 80 (2) and 80 (3). A flexible member for transmitting axial and rotary motion between non-aligned axes in remote manipulating apparatus such as tongs, comprises a close-coiled square-section helical spring 1 enclosed in a flexible braided steel sheath 2 and end fittings 3, 4 brazed to both the spring and sheath, and when guided in a curved path, for example, by a guide conduit 7, the sheath becomes tight about the coil and thereby capable of transmitting axial and rotary motion in forward and reverse directions without lost motion. Several such assemblies, for example, 14, 15, 16 may be arranged concentrically, and tension-operated cables 12, 13 may be passed through the centre assembly.