baber/WOPTO huggingface dataset:
Patent GB-1208071-A (GB)
Title: Isomerization
IPC: C07C5/25
Filed: 1968-03-19
Abstract: 1,208,071. Substituted bicyclo [2.2.1] hept.2- enes; tetrahydroindene. B. F. GOODRICH CO. 19 March, 1968 [20 March, 1967], No. 13157/68. Heading C5E. 5-Vinylbicyclo [2.2.1] hept-2-enes of formula where R is hydrogen or C 1-4  alkyl are isomerized to the corresponding 5-ethylidenebicyclo [2.2.1] hept-2-enes by contact with iron pentacarbonyl as catalyst. A hydrocarbon solvent may be present, e.g. 3-ethylpentane and cyclohexane. In Examples (1), (3) and (4), 4,9,7,8-tetrahydro-indone is also produced, and it is stated that above a reaction temperature of 250‹ C. this product competes favourably with the desired product. 5-Vinylbicyclo [2.2.1] hept-2-ene is prepared by reacting 1,3-butadiene with 1,3-cyclopentadiene (in the form of dicyclopentadiene) by heating at 180‹ C. in the presence of hydroquinone as polymerization inhibitor. Similarly, reaction of 1,3-cyclopentadiene and piperylene yields a mixture of 6-methyl-5-vinylbicyclo [2.2.1] hept-2-ene and 5-propen-1-ylbicyclo [2.2.1] hept-2-ene.
Patent GB-1350822-A (GB)
Title: Production of alcohols and or aldehydes
IPC: B01J31/26
Filed: 1971-05-05
Abstract: 1350822 Oxo process BADISCHE ANILIN- & SODA-FABRIK AG 5 May 1971 [6 May 1970] 13169/71 Heading C2C Aldehydes and/or alcohols are prepared by reacting olefinic compounds with CO and H 2  at elevated temperature and pressure in the presence of a carbonyl complex of a Group VIII metal modified by a trisubstituted phosphine containing one or more carboxylic acid groups at least one of which is present in the form of a salt with an organic amine. An example prepares butyraldehydes, butanols, 2-ethylhexanal, 2 - ethylhexenal and 2 - ethylhexanol from propylene. Various other olefines and olefinic ethers and esters are specified as starting materials.
Patent GB-1424533-A (GB)
Title: Liquid filled double glazed units
IPC: C03C27/06
Filed: 1972-03-21
Abstract: 1424533 Liquid-filled double-glazed units PILKINGTON BROS Ltd 14 March 1973 [21 March 1972] 13183/72 Heading E1R A double-glazed unit wherein the glazing is separated by spacers intermediate the units edges contains a liquid and is sealed above liquid level includes a liquid filled passageway connecting the unit to a reservoir, e.g. 16, which is subject to atmospheric pressure and the liquid level of which is adjacent the bottom of the unit. The passageway may comprise a siphon, Fig. 2 (not shown) or a tube 23 in the unit's bottom. The reservoir may be the bottom member 16 of a hollow frame and may be open either directly to atmosphere or via a liquid trap 25. Alternatively, the reservoir may be a tube 30 which may be open to the atmosphere or, to prevent evaporation, may have a piston on the liquid's surface or a flexible tube 33 which is closed at its upper end.
Patent GB-517715-A (GB)
Title: Improvements in or relating to illuminating devices
IPC: F21S13/00
Filed: 1938-05-03
Abstract: 517,715. Lighting fittings. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. May 3, 1938, No. 13194. Convention date, May 4, 1937. [Classes 39 (ii) and 75. (iv)] An illuminating device adapted more particularly for surface illumination, or indirect lighting, comprises an electric incandescent lamp mounted within a screening or diffusing fixture which intercepts the luminous rays proceeding from the lamp and not directed towards the surface referred to, the lamp being of substantially ellipsoidal shape with a mirror surface extending over substantially one half of the surface of the bulb. The mirror surface, Fig. 7, occupies a surface swept out by two parabolas FG, GH and the disposition of the lamp 9, Fig. 3, in the fitting 2 is such that the light reflected by the mirror surface of the source is more intense at distant points of the ceiling than at those nearer the source, where, however, the illumination is increased by reflection from the fitting. If the 'front face of the fitting is opaque the source is invisible to an occupant of the room, it is seen. as a glow only if the front face is of frosted glass &c.
Patent GB-1315785-A (GB)
Title: Method of producing tetrafluorodibromoethane
IPC: A62D1/00
Filed: 1971-07-02
Abstract: 1315785 Tetrafluorodibromoethane KALICHEMIE AG 2 July 1971 [31 Aug 1970] 31201/71 Heading C2C Tetrafluoro-1,2-dibromo-ethane is prepared by reaction of tetrafluoroethylene with a solution of bromine in tetrafluoro-1,2-dibromoethane at 0‹ to 50‹ C. Reaction is preferably effected continuously in countercurrent using a combination of a subsidiary reactor, into the foot of which tetrafluoroethylene is introduced, and a main reactor to the top of which is fed the bromine solution in an amount such as to provide an excess of at least 0À5% wt. of the stoichiometric quantity of bromine. The reaction product still containing bromine is then fed to the subsidiary reactor in which tetrafluoroethylene is present in stoichiometric excess, and the tetrafluorodibromoethane is continuously withdrawn from the subsidiary reactor. The exhaust gases leaving the main reactor may be washed with tetrafluoro-1,2-dibromoethane, and the wash liquid recycled to the main reactor.
Patent GB-119069-A (GB)
Title: Improvements in or relating to Artificial Limbs.
Inventor: ADAMS ALFRED CHARLES
IPC: A61F2/58
Filed: 1917-09-14
Abstract: 119,069. Adams, A. C. Sept. 14, 1917. Limbs, artificial.-A connecting-device for parts of artificial limbs, attachments, or fittings, comprises a tapered or like member adapted to be inserted in a corresponding, socket and automatically locked therein. A stem member 1 of the artificial arm has a frusto-conical end 2 which is retained in a correspondingly-shaped socket 4 by a transverse spring-pressed pin 5. A forked lever 7 engaging slots in the pin 5 is connected by a spring- operated spindle and a lever to a press-button projecting through the bucket 16. A stem 23, to which various fittings can be screwed, is secured inside the arm stem 1 by a spring-pressed catch plate 26 engaging a groove 25. A polygonal enlargement 22 on the stem 23 enables it to be fixed at various angles in engagement with a correspondingly-shaped opening 21.
Patent GB-201282-A (GB)
Title: Improvements in or relating to artificial teeth
IPC: A61C5/70
Filed: 1922-05-11
Abstract: 201,282. Kochmit, E. J. May 11, 1922. Teeth, artificial.-Porcelain crowns are applied to the roots of the natural teeth by providing the crowns with inner tubes telescoping over corresponding tubes secured to the projecting stumps of the natural teeth. The stump of the tooth to be treated is ground to form a spill 12 over which is swaged a tube 9, of gold or suitable alloy, secured in place by cement. A corresponding tube 7 which closely fits the tube 9 is secured by cement 8 in a hollow porcelain crown 6 and the assemblage is secured over the projecting tube 9 by cementing. For the purpose of attaching bridge work 11, a recess may be ground in the porcelain jacket and the bridge plate 10 soldered to the inner tube 7.
Patent GB-1533695-A (GB)
Title: Retractable net
IPC: A01K77/00
Filed: 1977-03-29
Abstract: 1533695 Landing nets; butterfly nets; picking fruit POPEIL BROS INC 29 March 1977 13259/77 Headings A1A A1F and AIM [Also in Division B7] The net has a hoop 12 made from a resilient strip of material which passes through a spreader 20 to be secured to a member 15 which can slide along the handle 11 thus controlling the size of hoop. A lock with actuator 25 in the spreader 20 secures the strip in position. A bag can be fitted over the net loop in its retracted position for storage and to act as a temporary paddle.
Patent GB-836629-A (GB)
Title: Improvements in or relating to built-up sectional roofing
IPC: E04D3/38
Filed: 1957-04-25
Abstract: 836,629. Roofing slabs; roofs. BENNETT, J. E. March 7, 1958 [April 25, 1957], No. 13286/57. Classes 20(4) and 87(1) A roofing -slab comprises an insulating board 1 which is dipped in bitumen and covered with a sheet of roofing felt &c. 2 which extends at 2b on to the underface and with a further sheet of roofing felt 3 which extends over the edges at 3a and outwards at 3b to form a welt. The welts of adjacent slabs overlap and the space between the slabs is filled with bitumen. Felt &c. strips coated with bitumen may be provided under the joints. At the edge of a roof, Fig. 3, a gutter eave may be formed by an aluminium member having three flanges 7a, 7b, 7c. Where the roof 8 joins an upstanding wall 9, Fig. 4, a laminated sheet 10 of asbestos and bitumen is provided with a flange 10a to engage under the welt 3b and a flange 10b to form a flashing.
Patent GB-866227-A (GB)
Title: Improvements in tone receivers
Inventor: NORMAN EDWARD HAROLD
IPC: H04J1/14
Filed: 1958-04-26
Abstract: 866,227. Voice immunity circuits. ERICSSON TELEPHONES Ltd. July 24, 1959 [April 26, 1958], No. 13309/58. Class 40 (4). A normally conducting transistor 23 is cut off in response to a signalling tone which in energizing a potential divider comprised by resistor 14 and circuit 16, 17, tuned to the signal tone frequency, finds high impedance across the tuned circuit and consequently provides a positive bias on the transistor base, whereas if non- signal tone frequencies occur the voltage drop across resistor 14 provides a negative bias to hold transistor 23 conducting. Incoming signals are applied to the primary of transformer 10 and although the guard voltage may be taken from across resistor 14 it may also include part of the secondary winding of transformer 10, as shown.
Patent GB-1501401-A (GB)
Title: Centrifugal casting machine
IPC: B22D13/10
Filed: 1975-04-02
Abstract: 1501401 Centrifugal casting PONT-AMOUSSON SA 2 April 1975 [29 April 1974] 13400/75 Heading B3F In a centrifugal casting machine for casting iron pipes using a movable casing 3, a rotary centrifugal casting mould 1 and means for spraying the mould with water 4, the casing is provided internally on each of its lateral walls two pairs of vertical, and preferably rectangular ducts or piping 13, 13a disposed symmetrically about the mould axis X-X, with steam inlet apertures 14, 14a at or near the top of the ducts 3 In the operative position, a flange 8 on the casing with axial pins 9 and keys 12, abuts a gantry 10 with co-operating holes to lock the casing and gantry together. In this position, the lower ends of the ducts 13, 13a, carrying angled flanges 15, 15a engage with similarly angled flanges 17, 17a on ducts 16, 16a fixed to the ground on each side of the casing 3. The alignment of the flanges 15, 15a 17, 17a, is such that the casing 3 may be moved back from gantry 10 without the flanges fouling each other. The ducts 16, 16a are connected to a manifold 18, wherein a suction fan 19 exhausts the steam to discharge it up flue 20. A steam seal for the lower part of the casing 3 is provided by vertical plates 22, attached to the lower walls of casing 3 by horizontal plates 23, and extending the length of the casing 3, which dip into water channels 21 parallel to the axis X-X and disposed between the runways 6 along which casing 3 moves on rollers 5. Thus in operation, with casing 3 locked to gantry 10, on casting a pipe and cooling it with water, hence creating large amounts of steam, the suction fan 19 exhausts the steam from the casing 3 via apertures 14, 14a, through ducts 13, 13a, 16, 16a to the flue 20, the hydraulic seal 21, 22, 23 preventing any steam escaping from the bottom of the casing 3. In a modification, the casing may be constructed with double-skinned walls, the double skinning replacing the ducts 13, 13a. Alternatively casing 3 may be immovable, thus permitting ducts 13, 13a and 16, 16a to be continuous.
Patent GB-398592-A (GB)
Title: Improved coupling for lead pipes
IPC: F16L19/028
Filed: 1932-05-10
Abstract: 398,592. Pipe joints. LANE & SONS, Ltd., J. and CLIFF, E. A., 1, Dickinson Street, Manchester. May 10, 1932, No. 13401. [Class 99 (i).] In a joint between a lead pipe A and a hard metal pipe B having an end flange b, Fig. 1, the end of the lead pipe is flared to form a flange a which is compressed against the face of the flange b by a coupling member E coacting with the latter, a hard metal washer D being interposed between the back of the flange a and the member E. Fig. 5 shows a joint between two lead pipes A, A<1>, the flared ends of the pipes being compressed against the ends of a tubular hard metal block B<1>, preferably with the interposition of leather &c. washers F. In a modification, Fig. 7, the block is replaced by a hard metal washer B<2>. Reference has been directed by the Comptroller to Specifications 16349/99, [Class 99, Pipes &c.], 12384/11, and 165,925, [both in Class 99 (i), Pipes and tubes, Joints &c. for].
Patent GB-964490-A (GB)
Title: Dauber
Inventor: SCHWARTZMAN GILBERT
IPC: B65D47/24
Filed: 1963-04-05
Abstract: 964,490. Daubers. DAB-O-MATIC CORPORATION. April 5, 1963, No. 13580/63, Heading A4K. [Also in Divisions A5 and B8] In order to distribute liquid from container 10 over as large an area of foam rubber pad 20 as possible and to avoid high contact pressure at any point of contact between the pad 20 and a valve member, a round latex valve member 24 is formed as a hardened globule on the end of spring 38 so as, when the valve is open, to provide a large annular liquid flow path 28. Ring 14 is of polythene and pad 20 is covered with a ply of porous fabric. The dauber is intended for applying liquids to the skin. In an alternative construction, the ring 14 may itself constitute the container neck and the other parts may be detachably secured to it. The valve member 24 may be of neoprene.
Patent GB-137345-A (GB)
Title: Improvements in and relating to the production of ammonium salts
IPC: C01C1/242
Filed: 1918-08-21
Abstract: 137,345. Curphey, W. S. Aug. 21, 1918. Ammonium salts, particularly ammonium sulphate or ammonium sulphite and sulphate, are obtained by saturating the acid liquor in two stages, namely, in the first stage with ammonia containing impurities such as sulphuretted hydrogen produced in the first stage of distillation of ammoniacal liquor, and in the second stage by relatively pure ammonia from the second stage of the distillation of the ammoniacal liquor, the impurities precipitated in the first stage of the saturation being separated, for instance by filtration, before the partly neutralized liquid passes to the second absorber. The liquor in the first absorber may be sulphuric acid, or sulphurous acid, and, in either case, sulphurous acid may be added to the second absorber. Crude ammoniacal liquor passes by a pipe 1 into a heat-exchanger 2, and by a pipe 3 to the upper section 4 of a still, which receives steam at 6. The crude ammonia passes out by a pipe 11 to the first absorber 12, which receives gases containing sulphur dioxide from a burner 13 by a pipe 15, and the exit gases from the second absorber 22 by a pipe 40. The liquor from the upper part of the still passes away by a pipe 5, coil 7, and pipe 8 to a tank 9 which receives milk of lime by a pipe 10, the mixture passing by a pipe 25 to the lower part 24 of the still, which receives steam at 26. The relatively pure ammonia passes out by a pipe 23 to the second absorber 22, which receives the liquor discharged from the first absorber by a pipe 18 through a filter 20, which removes suspended matter. The crystals separated in the absorber 22 are drained on a drainer 28, the motherliquor running into a tank 29. The exit gases from the absorber 12 are passed to a catch-vessel 31 to remove remaining sulphur dioxide, and this vessel discharges by a pipe 30 into the tank 29. the liquor in the tank 29 is raised by a pump 35 through a pipe 36 to a tank 37, which supplies both the absorber 12 and the catch-vessel 31. Liquor is drawn off from time to time by a tap 38 for evaporation in a pan 39 which is arranged over the flues 14 leading from the burner 13.
Patent GB-296819-A (GB)
Title: Improvements in the manufacture and production of complex metal compounds of o-hydroxymonoazo dyestuffs
IPC: C09B45/01
Filed: 1927-05-20
Abstract: 296,819. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). May 20, 1927. Monoazo dyes, soluble metal compounds of.- Azo dyestuffs containing an alkoxy group in oposition to the azo group are treated with metal compounds under conditions suitable for splitting off the alkyl group, e.g. the dyestuff together with the metal compound and water may be heated under pressure or subjected to a prolonged boiling under reflux. The products are obtained in better yield than when the usual process of preparing the o-oxyazo dyestuff and treating it with the metal compound is employed. The following examples are specified :-(1) The dyestuff 4-chlor- 2-anisidine # 2 : 6-naphtholsulphonic acid is heated under pressure at 125-130‹ C. for 7-8 hours with a paste containing chromic oxide and formic acid in presence of water. The product yields on wool violet dyeings fast to washing, milling, and light. (2) The dyestuff 4-nitro-2- anisidine # 2:6-naphtholsulphonic acid is heated under pressure at 120‹ for 3 hours with copper formate and water. The product yields on wool fast bordeaux dyeings. The corresponding chromium dyestuff prepared as in (1) yields on wool fast brownish-violet dyeings. The chromium dyestuff similarly obtained from 5- nitro-2-anisidine # 2 : 6-naphtholsulphonic acid yields green dyeings. (3) A violet chromium dyestuff is prepared as in (1) from 2-aminoanisol- 4-sulphonic acid # #-naphthol. (4) A violet chromium dyestuff is prepared from o-phenetidine # 1 : 5-naphtholsulphonic acid as in (1) or by prolonged boiling under reflux with chromium fluoride. (5) A violet chromium compound is prepared from the dyestuff o-anisidine # #- naphthol by heating under pressure at 125-130‹ C. for 7-8 hours with alcohol and an aqueous solution of chromium formate.
Patent GB-662228-A (GB)
Title: Apparatus for raising liquids from deep wells by gaseous pressure
IPC: E21B34/06
Filed: 1947-01-10
Abstract: 662,228. Cylinders. THOMPSON, G. L., and CEJKA, L. A. Jan. 10, 1947. No. 13603/50. Divided out of 662,134. Class 122(i). [Also in Group XXVIII] In a piston-cylinder arrangement for reciprocating the flow line in an apparatus for raising oil from deep wells by gas pressure, the cylinder covers 47, 48 are clamped on the cylinder by tie rods 51, 52 that are extended and pass through a plate 47a and held in position by nuts 54. The position of the cylinder relatively to the plate is adjustable. Specification 662,134, [Group XXVIII], is referred to.
Patent GB-592695-A (GB)
Title: Improvements relating to rotary displacement pumps
IPC: F04C15/00
Filed: 1945-05-31
Abstract: 592,695. Rotary pumps. PRECISION DEVELOPMENTS CO., Ltd., BOX, F., and OLAH, G. May 31, 1945, No. 13649. [Class 110 (ii)] Means to collect liquid leaking from the working chamber of a rotary, particularly a gear-wheel, pump, radially outwards, and also along the rotor shaft or shafts, and to prevent air leaking into the chamber, comprises grooves 12, 13, surrounding the chamber, and clearances 20, 21, at the shaf ends, all leading to a collecting chamber 17, by way of a restricted passage or a valve 18, thence to the suction side of the pump. As applied to a gear-pump having teeth shaped in accordance with those described in Specification 5@8,809, the pump has gears 1 in a chamber 2 formed by a plate 3 and two outer plates 4, 5, containing the grooves 13, 12. Outer parts 7, 8, are secured together as shown, by bolts 6, and dowels 10. Inlet and outlet ports 25, 26, for the liquid are provided. The spaces 20, 21, communicate through bores 11 in the shafts and grooves on each side of the gears, communicate with one another. The space 21 is enlarged to accommodate an Oldham-type driving coupling for the pump.
Patent GB-1040724-A (GB)
Title: Process for the preparation of amino alcohols
IPC: C07C215/30
Filed: 1963-03-25
Abstract: Novel aminoalcohols of the formula <FORM:1040724/C2/1> wherein R1, R2 and R3 are each hydrogen or chlorine or a hydroxy, nitro or methoxy radical, R4 is hydrogen, methyl or ethyl, R5, R6 and R7 are hydrogen or methyl, R8 is hydrogen or hydroxyl and R9 and R10 are hydrogen or chlorine or a methyl or methoxy radical, are made by reducing the corresponding b -phenyl-alkylamino -propiophenone, preferably by means of hydrogen in the presence of a catalyst, or with sodium borohydride, lithium borohydride or alkali-metal, alkaline-earth-metal or aluminium alcoholates.  The products may be converted into their salts and quaternary compounds.  The products may be obtained in optically active forms by reaction with an optically active acid and fractional crystallization or precipitation or by the use of an optically active starting material.
Patent GB-934689-A (GB)
Title: Epoxy fatty acid esters and polyvinyl resin compositions containing them
IPC: C08L27/06
Filed: 1960-04-20
Abstract: A polyvinyl resin composition comprises a vinyl halide polymer prepared from a monomer or mixture of monomers of which at least 50% are vinyl halide monomers and oxirane-containing esters of fatty acids of 10-30 carbon atoms and a monohydric, dihydric or polyhydric alcohol of 8 or less carbon atoms or a benzenoid alcohol, or mixture thereof, the oxirane groups being present in the fatty acyl portion of the esters, the oxirane content of the esters being in the range 8,5-12,3%.  Particular polyvinyl resins are polyvinyl chloride, vinyl chloride-vinyl acetate copolymers, and vinyl chloride-vinylidene chloride copolymers. Stabilizers such as zinc salts of C8-C18 aliphatic organic acids, e.g. zinc octoate, or barium octoate, calcium octoate, and mixtures such as barium-cadmium laurate or barium-cadmium stearate, dibutyl tin dilaurate, zinc dilaurate, lead carbonates and stearates, barium-cadmium phosphites, or a mixture of zinc and calcium stearates, may be added.  Fillers, pigments, lubricants, antistatic agents and antiblocking agents may also be employed in the composition where desirable.  A suitable antistatic agent is obtained by condensation of tetraethylene pentylamine with stearic acid.ALSO:The invention comprises esters of higher fatty acids containing 10-30 carbon atoms, the acyl group of the fatty acids containing a plurality of oxirane groups substituted along a fatty chain in an amount sufficient to provide in the esters an oxirane content of about 8,5-12,3%, the alcohol group of the esters being selected from monohydric, dihydric or polyhydric alcohols of 8 carbon atoms or less, benzenoid alcohols having less than 10 carbons and mixtures thereof.  The epoxidation is effected by mixing a benzene solution of the unsaturated ester with 50% hydrogen peroxide with sulphuric acid as catalyst, heating the mixture, adding formic acid and maintaining a reaction temperature of between 160-168 DEG F. In examples, (1) linseed oil is epoxidized as above; (2) linseed oil is transesterified by refluxing with a monohydric alcohol in the presence of potassium hydroxide and the ester is epoxidized; the methyl, ethyl, propyl, n-butyl, isobutyl, and n-octyl esters of epoxidized linseed oil fatty acids are thus prepared; the benzyl ester is made from the acid chloride of the linseed acid mixture and benzyl alcohol in pyridine, and the ester is epoxidized; (3) linseed oil fatty acids are made by saponifying linseed oil with alcoholic alkali, the mixed fatty acids are added to a hot solution of urea in methanol with agitation and after discarding the urea complexes the filtrate is evaporated to obtain the fatty acid mixture; the mixture is esterified with n-butanol in the presence of p-toluene sulphonic acid and epoxidized; butyl esters of epoxidized soybean oil fatty acids and epoxidized tall oil fatty acids are similarly obtained.