baber/WOPTO huggingface dataset:
Patent GB-1060374-A (GB)
Title: Aromatic carbonates
IPC: C08G64/22
Filed: 1964-05-19
Abstract: Cyclic aromatic carbonates of the formula <FORM:1060374/C2/1> where m is 1-3 and when m is 1 or 2, A is <FORM:1060374/C2/2> and when m is 3, A is <FORM:1060374/C2/3> are made by reacting in an inert organic solvent at - 10 DEG  to +75 DEG  C., substantially equimolar amounts of water and a bishaloformate of the formula <FORM:1060374/C2/4> or <FORM:1060374/C2/5> in the presence of substantially 2 mols acid acceptor per mol water, X being halogen, R1 being halogen or alkyl, R2 being alkylidene and p being 0, 1 or 2.  Organic and inorganic acid acceptors may be used.  It is preferred to use a weak base, e.g. a tertiary amine, when making the monomeric or dimeric compounds, and a strong base, e.g. NaOH, when making the trimer. The required compounds are isolated from any linear polycarbonate which may form by using selective solvents.  The monomers and dimers may be separated by sublimation of the monomer.  Example 2 relates to the monomer and dimer derived from the bischloroformate of 2,21 - dihydroxy - 5,51 - dimethyl-diphenylmethane and Example 3 to the trimer derived from the bischloroformate of 2,2-bis-(4-hydroxyphenyl) propane.ALSO:Linear aromate carbonate homopolymers and copolymers are made from cyclic monomers, dimers and trimers having the formula <FORM:1060374/C3/1> where m is 1-3, and when m is 1 or 2, A is <FORM:1060374/C3/2> and when m is 3, A is <FORM:1060374/C3/3> wherein R1 is halogen or alkyl, R2 is an alkylidene radical and p is 0, 1 or 2, in either a fusion cook or solvent system.  Basic catalysts may be used, but impurities in the polymerization may be sufficient to initiate the reaction. Specified catalysts are alkali metals, and the hydroxides, carbonates, alkoxides and aryloxides thereof, quaternary ammonium hydroxides and organo-metallic compounds.  Molecular weight regulators may be used.  Temperatures may be as high as 350 DEG C. using the fusion cook system or as low as 25 DEG  C. using the solvent system.  Suitable solvents include chlorinated hydrocarbons and diphenyl ethers.  Examples 4-6 relate to polymers derived from the monomeric and dimeric cyclic carbonates of 2,21-dihydroxy-5,51-dimethylphenylmethane and Example 7 relates to a polymer derived from the cyclic trimeric carbonate of 2,2-bis(4-hydroxyphenyl) propane.
Patent GB-968634-A (GB)
Title: Improvements in or relating to fire extinguishers
IPC: A62C3/07
Filed: 1962-05-29
Abstract: 968,634. Fire extinguishers. A. WERNER. May 29, 1962 [June 19, 1961], No. 20706/62. Heading A5A. A motor vehicle fire extinguisher comprises in combination with a flashing light 12 and a container 1 charged with an extinguishing agent through a valve holder 3 screwed on to the upper end of a closure plug 2, the holder 3 having a self-closing non-return valve 4 for charging the container with a propellant, e.g. compressed air. An ejection nozzle extends from a bore 2A of the plug 2 and has a sealed outer end 7 projecting beyond a part of the rim of a transparent cover 8 which cover both protects the plug 2 and also houses the light 12. The cover is displaceable axially towards the container against the action of a spring 9 so as to break off the closed end of the nozzle for actuating the extinguisher. A repair lamp 17 and battery 18 is mounted within a transparent cap 19 covering the lower end of the container and a warning triangle 20 of flexible material is releasably held to the container by a resilient strap 21. Means are described for mounting the extinguisher in the vehicle, Fig. 3 (not shown), which means may carry a first aid box and a box for a towing rope.
Patent GB-262680-A (GB)
Title: Improvements in sewage distributors
IPC: C02F3/04
Filed: 1926-05-29
Abstract: 262,680. Hartley, J. W. May 29, 1926. Rotary apparatus. - In a waterwheel for use in automatic sewagedistributing apparatus having arranged, at a low level at its side, a supply pipe J, Figs. 2 and 4, provided with sprouts F, each jet is provided with a curved plate G which deflects the liquid into the upper buckets E2 at higher heads, and through guides G3, G4 on to the wheel at lower heads, while at the lowest head sewage passes over a lip G7 on to the lowest buckets of the wheel. Inspection openings G6 may be provided in the plate G. The wheel is supported in bearings carried by brackets K, Fig. 2, on a frame L carried by the supply pipe J. The driving-wheel M of the apparatus may be mounted directly on the axle of the water-wheel or, if the surrounding wall of the filter is higher than the bed, it may be driven by sprocket or other gearing. Sewage falls directly from the water-wheel on to the bed. The wheel may be used in connection with the apparatus described in Specification 261,852.
Patent GB-1388187-A (GB)
Title: 2-5-nitrofurylvinyl-4-methyl-5-acetylthiazole derivatives and antimicrobial compositions prepared therefrom
IPC: A23L3/3544
Filed: 1972-05-04
Abstract: 1388187 Preservative KURENA KAGAKU KOGYO KK 4 May 1972 [4 May 1971 (3)] 20893/72 Heading A2D [Also in Division C2] Novel compounds I in which X is NOH, N-OCOCH 3 , N-NHCONH 2 , N-NH-CSNH 2  or N-NHC(=NH)NH 2 HA (where A is an acid anion) are preservatives for food and drink. The preservation of a fish meat paste and fish meat sausage using the above compounds, is exemplified.
Patent GB-504912-A (GB)
Title: Improvements relating to gyroscopic instruments
IPC: G01C19/12
Filed: 1937-07-28
Abstract: 504,912. Bearings. HILLIER, A. (Sperry Gyroscope Co., Inc.) July 28, 1937, No. 20930. [Class 12 (i)] [Also in Group XX] Supplementary air film support for part of a gyroscopic apparatus mounted for movement about a horizontal axis on spaced air film bearings is provided by an air film maintained between a surface of revolution about the horizontal axis on the part and a complementary surface beneath the part. In the gyro compass shown the rotor 11 spins on spaced air film bearings 10 in the ring 17 and is supported by an air film between its periphery and a complementary surface 12 in a member 4 having uprights 13 in which the ring 17 is pivoted on spaced air film bearings 14. The member 4 is supported for rotation about a vertical axis by an air film between a doubly curved surface 3 on the member 4 and a complementary surface on the base I.
Patent GB-204457-A (GB)
Title: An apparatus for preheating or vaporising liquids
IPC: C10G7/00
Filed: 1922-08-01
Abstract: 204,457. Brandon, D. C. Aug. 1, 1922. Bulk evaporators; hydrocarbons, distilling.- An apparatus for preheating and partially evaporating liquids such as petroleum, crude oil, &c. consists of a vertical chamber a across the lower part of which passes a nest of tubes b through which vaporous or liquid heating-agents such as steam, hot residues or vapours from a still, are passed from a header 2 to a header 2<1>. The liquid to be heated passes from an inlet 16 to an outlet 14. The base 7 is provided with a water-separator 21. The vapour outlet 27 is provided with a device 25 for separating entrained liquid.
Patent GB-593189-A (GB)
Title: Improvements relating to cycle wheel hubs
IPC: B62J6/12
Filed: 1944-10-28
Abstract: 593,189. Lighting arrangements for cycles. RALEIGH CYCLE CO., Ltd., and BROWN, W. Oct. 28, 1944, No. 21069. [Class 136 (i)] [Also in Group XXXV] A dynamo and speed-gear are combined within the same cycle wheel hub. In the form shown, the one-piece hub shell has a narrow portion 1 containing the gear mechanism and a wider portion 2 having a multi-polar ring magnet 11. The end bearing of the gear extends into the dynamo and comprises a shoulder 6 mounted in the gear housing, a ball-race 7, and a stationary core portion 8 which carries an end plate 25 and a cup-shaped support 15 for the fixed armature winding 26 having terminal clips 27. The gear shell is shortened by the use of plunger pawls 19. Specifications 468,065, 481,585, [both in Group XXXV]; 483,992, [Group XXIV], 504,800, [Group XXXV], 519,945, 527,629, [both in Group XXIV], and 541,332, [Group XXXV], are referred to.
Patent GB-240987-A (GB)
Title: Relief effects in photography
IPC: G03B35/00
Filed: 1924-09-08
Abstract: 240,987. Dawson, H. E. Sept. 8, 1924. Relief effects in photographs or kinematograph pictures. - Relates to the production of relief effects by making a composite impression from a positive and a negative image superimposed slightly out of register, and consists in forming the positive and negative images on opposite sides of a common transparent or translucent support in sheet or strip form. For example, the back of a negative may be coated with a sensitive layer, and a positive image may be printed thereon from the negative with oblique illumination. Or a support having a sensitive coating on each side may be exposed to produce a negative image on one side, which is protected by varnish while the layer on the other side is bleached to remove any developed image, and a positive image is produced in this layer from the negative image in the manner already described. Alternatively a support having a sensitive coating on each side may be exposed under a positive or negative with oblique illumination, and the printed images treated to produce a positive and a negative image on opposite sides.
Patent GB-1176395-A (GB)
Title: Injectable Potentiated Sulphonamide Compositions and a Process for the Manufacture thereof
IPC: A61K47/10
Filed: 1967-05-08
Abstract: 1,176,395. Injectable potentiated sulphonamide compositions. F. HOFFMANN-LA ROCHE & CO. A.G. 8 May, 1967 [9 May, 1966], No. 21230/67. Heading A5B. Injectable potentiated sulphonamide compositions, comprising a clear mixture of an aqueous solution of a water-soluble salt of a sulphonamide with a solution of a basically-reacting organic compound (which acts as a sulphonamide-potentiator) in a medicinally acceptable water-miscible organic solvent, are prepared by forming the two solutions followed by combination thereof. The sulphonamide may be sulphomethoxine, sulphafurazole, sulphamethoxazole, sulphadimethoxine or sulphamethazine, and salts are formed with alkalis (e.g. NaOH), NH 4 OH and organic amines e.g. ethanolamine, diethanolamine and tris (hydroxy-methyl)-methylamine. The potentiator may be a pyrimidine derivative of the formula: wherein R<SP>1</SP> represents an alkyl group e.g., methyl or ethyl, R<SP>2</SP> represents a substituted or unsubstituted aryl group e.g. a phenyl group which is substituted by one or more alkoxy (e.g. methoxy or iso butoxy), amino, nitro, alkyl (e.g. methyl), trifluoromethyl, hydroxy and/or halogen (e.g. Cl) substituents and the broken line denotes that R<SP>1</SP> is optional. Suitable potentiators are diaveridine, trimethoprim, 2, 4-diamino-5-(3, 4, 6-trimethoxybenzyl)-pyrimidine, 2, 4-diamino-5-(3, 4-dimethoxy-6-methyl-benzyl)-pyrimidine and 2, 4- diamino-5,-(4-chloro-benzyl)-6-ethyl pyrimidine. Suitable organic solvents are polyethyleneglycol ethers of tetrahydro-furfuryl alcohol, N, N-dimethylformamide; dimethyl-sulphoxide, N, N-dimethylacetamide, N, N-diethyl-acetamide, 1, 2-propyleneglycol, di(1, 2-propyleneglycol), 1, 3-butyleneglycol, glycerine formal and polyethyleneglycols. The water-soluble salt of the sulphonamide may be formed in situ.
Patent GB-258999-A (GB)
Title: Improvements in hopper feed mechanism for textile carding and like machines
IPC: D01G23/04
Filed: 1925-08-25
Abstract: 258,999. Haigh &. Sons, Ltd., J., and Riley, A. Aug. 25, 1925. Feeding carding-engines. - In a hopper feed mechanism in which the spiked feed lattice is driven through fast and loose pulleys and is stopped during the emptying of the scale pan at the end of each weigh, the belt fork j is carried on a vertical shaft k controlled by a spring o, which tends to turn the shaft and carry the belt on to the loose pulley. The belt i<1> drives through the pulleys i a shaft h connected by gearing g to the pulley which operates the lattice b. The shaft k is held against rotation by a finger l engaging with an extension m<1> on a lever m. The scale pan d when full descends and the pinion d<5> comes into position to be engaged by the toothed segment d' on the shaft d<8>, which is rotated from the feed rollers of the carding-engine. The lever d<1> carrying the scale pan has mounted on it an arm d' adapted to engage by a trigger s a weighted catch p<1> and hold it out of engagement with a rotating catch block r geared with one of the pinions g. As the scale pan descends the trigger s leaves the catch p' which rises into engagement with the catch block, and the catch is forced to one side, raising the lever m and freeing the shaft k to move the belt on to the loose pulley. A finger w on the shaft k moves over a pin d<10> on the arm of the scale pan to hold it in position until the scale pan has been overturned and its load emptied on to the feed apron e. The shaft d', through a belt t<3>, rotates a cam t<1>, which operates a lever t to disengage the catch p<1>. A cam u<1> on the shaft d' then engages a finger v on the shaft k and turns it to carry the belt back on to the fast pulley. The finger w also moves away from the pin d<10> and the empty scale pan is free to rise and carry the trigger s back over the catch p', thereby depressing the lever m and bringing the extension m<1> into position to engage the finger l and lock the shaft k in position. The door c controlling the feed into the scale pan is operated by a finger c<1> on the shaft k.
Patent GB-287042-A (GB)
Title: Improvements in fastening devices for belts
IPC: F16G3/02
Filed: 1927-08-12
Abstract: 287,042. Withers, J. S., (Bonnart et Cie). Aug. 12, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 13, 1928]. B e l t - fastenings comprise plates 1 bent to form eye which are notched and interconnected by cat-gut pins 6 either directly or through the medium of one or more intermediate plates 7 which may carry linings 10 of the same material as the belt. The plates 7 may be formed of tubes which are flattened and have their upper and lower faces secured together by rivets or by welding. Bifurcated rivets 3, 9 secure together the plates and belting. The use of two or more intermediate plates 7 in series facilitates shortening of the belt to adjust for stretching. Two or more fastenings may be arranged sideby-side across the belt width.
Patent GB-479198-A (GB)
Title: Improvements in or relating to the hydrogenation of oestrin and its oestrogenous derivatives
Filed: 1936-08-01
Abstract: Oestrin or an oestrogenous derivative thereof such as oestrin benzoate is converted into the corresponding dihydro derivative by the action of an aluminium alcoholate of a secondary alcohol.  The ketone corresponding to the secondary alcohol which is formed as one of the products of reaction is removed by distillation as it is formed, to allow the reaction to proceed to completion.  The preferred alcoholate is aluminium isopropylate.  An alternative method of shifting the equilibrium to allow the reaction to proceed to completion is to conduct the reaction in a solvent in which the required alcoholate is insoluble.  In an example, oestrin benzoate and aluminium isopropylate are refluxed in isopropyl alcohol solution, the temperature of the cooling liquid in the condenser being maintained at 65 DEG  C.  In this way the acetone produced in the reaction distills off, together with a small amount of isopropyl alcohol.  The reaction is stopped when no more acetone can be detected in the distillate.
Patent GB-226579-A (GB)
Title: Improvements in or relating to non-skid or non-slipping devices
IPC: A43C13/02
Filed: 1923-08-23
Abstract: 226,579. Withers, J. S., (Davis, E. A.). Aug. 23, 1923. No Patent granted (Sealing fee not paid). Protectors, construction of; studs and spikes externally applied.-In a non-slipping device in which ground-engaging members, such as pointed wires, are housed within openings in rubber or like resilient material, the openings are protected either by a spring surrounding the ground-engaging member or by metal plates embedded in the material and having apertures to receive the members. The device is applicable to boots and shoes, horse boots and shoes, and to pneumatic tyres and wheels. As applied to shoes, a tread a, Fig. 1, of rubber has sharpened wire spikes d surrounded by metal springs j. The wires are bent over and round at their upper ends, which abut against a metal plate i. The tread may be secured directlv to the shoe, or may be mounted on a base member h which is secured to the shoe. In a modification, Fig. 3, the spike d is housed in rubber provided with perforated metal plates l. When used singly as a stud the device is secured by countersunk nails.
Patent GB-1146145-A (GB)
Title: Improved polymerization process
IPC: C08F210/16
Filed: 1966-05-13
Abstract: 1,146,145. Polymerization catalyst for unsaturated hydrocarbons. UNION CARBIDE CORP. 13 May, 1966 [14 May, 1965], No. 21449/66. Heading C3P. A polymerization catalyst comprises (1) a silylchromate having a group of the formula, where R is a hydrocarbyl radical containing from 1 to 14 carbon atoms and (2) an organoaluminium compound having at least one and no more than two oxyhydrocarbyl groups attached to the aluminium atom. The catalyst may be supported e.g. on a silica having a surface area of from 50 to 1,000 square meters per gram. A compound of the formula R y MX z  where R is a C 1-14  hydrocarbyl group, M is Al or Zn, X is hydrogen or halogen, y is 2 or 3, z is 0 or 1, and the sum of y and z is equal to the valency of the metal M. An aluminium trialkyl may also be present. The catalyst is used to homo- and copolymerize mono-olefins, and also to copolymerize mono-olefins with conjugated or non-conjugated dienes. The polymerization may be effected in an inert solvent, or in bulk. Hydrogen may be present. Exemplified polymers are polyethylene, copolymers of ethylenebutene-1, ethylene-propylene, ethylene-butadiene, ethylene-dicyclopentadiene, and ethylenehexene. The exemplified silylchromate is bistriphenylsilyl chromate.
Patent GB-1281492-A (GB)
Title: Ribbon of woven material carrying microcapsules
IPC: B41J31/02
Filed: 1971-04-19
Abstract: 1281492 Microcapsule - containing coating NATIONAL CASH REGISTER CO 19 April 1971 [25 Feb 1970] 21473/71 Heading B2E [Also in Division B6] A woven ink ribbon has a plurality of pressure-rupturable microcapsules bonded thereto by a process including the following steps: applying a solution of at least one polymeric material to the surface of the woven ribbon; applying the microcapsules to the ribbon surface; effecting liquid-liquid phase separation to produce a separated liquid phase containing the polymeric material, which partly envelopes each microcapsule and wets the surface of the woven ribbon; and thereafter drying the separated phase so that the microcapsules are bonded to the ribbon. The product of liquidliquid phase separation is a complex coacervate of two or more hydrophilic polymeric materials such as polyethyleneimine and a copolymer of methylvinylether and maleic anhydride. The microcapsules may contain a marking material which includes substantially colourless chromogenic material while reactive with acidic material carried on the ribbon or on the mark-receiving surface to produce a coloured dyestuff. The ribbon may be woven from cotton, nylon or silk. Suitable cationic and anionic polymeric materials are listed, together with suitable microcapsules and mark forming materials and inks.
Patent GB-258249-A (GB)
Title: Improvements in or relating to packing for the closure fittings of liquid fire-extinguishers
IPC: A62C13/00
Filed: 1926-08-31
Abstract: 258,249. Excelsior Feuerl÷schgerate Akt.-Ges., (Assignees of Minimax Akt.- Ges.). Sept. 8, 1925, [Convention date]. Joint-making packing.-A packing for the closure-fittings of portable liquid fire extinguishers using carbon tetrachloride &c. consists of a packing ring f of asbestos, copper, &c., and a domeshaped deformable metal foil g surrounding the packing ring. The foil has a depression h or concentric corrugations easily pushed inwards by a pin c which also deforms the lower end of a cartridge e so as to break a frangible vessel k.
Patent GB-680223-A (GB)
Title: Complex phosphate esters
IPC: C07F9/11
Filed: 1949-08-18
Abstract: <FORM:0680223/III/1> A lubricating composition comprises a mineral lubricating oil and a complex phosphate ester which is itself suitable as a lubricant, said ester having the formula: where R is a saturated aliphatic hydrocarbon radical of 2 to 18 carbon atoms or a radical consisting of a series of saturated aliphatic hydrocarbon groups linked by at least one ether-oxygen and/or thioether sulphur atom, each such hydrocarbon radical so linked containing a chain of at least two carbon atoms between each phosphate group and the nearest oxygen or sulphur atom, the total number of carbon, oxygen and sulphur atoms in the entire radical being from 5 to 80, and the number of sulphur atoms in the radical being not greater than 2; and R1, R2, R3, R4 are saturated aliphatic hydrocarbon radicals containing 1 to 20 carbon atoms or radicals consisting of a series of saturated aliphatic hydrocarbon radicals linked through 1 to 5 ether oxygen and/or thioether sulphur atoms, there being a chain of at least two carbon atoms between each phosphate group and the nearest oxygen or sulphur atom and between successive oxygen and/or sulphur atoms, the total number of carbon, oxygen and sulphur atoms in each of the radicals R1, R2, R3, R4 being from 4 to 20 and the total number of sulphur atoms being not greater than 2, the radicals being so chosen that the molecular weight of the ester is at least 300. The esters may be prepared by reacting a glycol R(OH)2 with phosphorus oxychloride and then reacting the product with the monohydric alcohol or mixture of monohydric alcohol R1OH, R2OH, R3OH and R4OH (see Group IV(b)).  The lubricating properties of the esters may be improved by the addition of antioxidants, viscosity index improvers, thickeners and dyes.  The Specification as open to inspection under Sect. 91, states that unsaturated monohydric alcohols, e.g. oleyl alcohol may be used to prepare the esters.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1222728-A (GB)
Title: Improvements in or relating to gas-solid chromatography
IPC: G01N30/50
Filed: 1968-05-08
Abstract: 1,222,728. Polyamide particles. INSTYTUT NAWOZOW SZTUCZNYCH. 8 May, 1968 [10 May, 1967], No. 21685/68. Heading C3R. [Also in Division B1] Granular non-porous polyamides, suitable for use as adsorbents in gas chromatography (see Division B1) are produced by dissolving the polyamide in a suitable solvent, together with a small amount of copper lysinate, a copper fatty acid salt or an aromatic amine as a heat stabilizer, and then reprecipitating the polyamide, the mixture being kept under continuous agitation during solution and precipitation to prevent fibrous spongy masses from forming. The product is extracted if necessary, filtered, washed and dried, and activated before use in a vacuum drier at 90-100‹ C. The surface peptide groups may be modified by partial alkylation or oxidation. In examples: (1) polyamide 6 is dissolved in formic acid and reprecipitated with NaOH; (2) polyamide 66 is dissolved in the presence of glass powder in HCl and CH 3 OH or acetone used as precipitating agent; and (3) and (4), polyamides 610 and 11 are dissolved in phenol, reprecipitated with NaOH, and extracted with C 2 H 5 OH.