baber/WOPTO huggingface dataset:
Patent GB-420636-A (GB)
Title: Improvements in or relating to the production of alkyl derivatives of phenolic compounds
IPC: C07C37/48
Filed: 1934-02-07
Abstract: An alkyl derivative of a phenolic compound is prepared by treating an olefine mixture with sufficient absorbing acid to absorb selectively the olefine which is to be reacted, the acid liquor being separated and treated with the phenolic compound in substantial excess of the theoretical proportion, the acid being removed by subsidence from the mixture which still contains sufficient acid to catalyze the reaction and is refluxed to give the desired derivative.  An excess of 15--100 per cent for example 25 per cent by weight of phenol is preferred. The excess may be added in stages, the amount added to the acid liquor being 3--10 per cent more than the theoretical, and a quantity equal to 10--65 per cent of that originally theoretically required being added after separation of acid but before refluxing.  A small amount of the phenol may be added to the residue produced by the fractional distillation which on re-distillation gives a further yield of the alkyl derivative.  According to examples: (1) 62 per cent sulphuric acid is used to absorb iso-amylene by successive counter-current treatment with amylene-containing mixtures of progressively greater iso-amylene content.  The acid liquor is agitated for 1 hour with phenol equivalent to 75 per cent excess of the molecular proportion, allowed to settle, and the oily layer refluxed for 4 hours at 130--135 DEG  C., washed with water, and neutralized with soda ash.  The product is distilled at 20 m.m. up to 139 DEG  C., the portion boiling between 139 and 155 DEG  C. and preponderating in the desired tertiary amyl phenol being collected separately.  (2) Acid liquor obtained as in (1) is treated with phenol equivalent to 6,8 per cent excess.  After removal of the acid, additional phenol is added and the material treated as in (1).  (3) Distillation residues of Examples (1) and (2) were treated with 940 lbs. of phenol to 2340 lbs. of residue and again distilled as in (1). The invention is especially applicable to the condensation of phenol with olefine material containing from 2 to 10 carbon atoms.
Patent GB-115451-A (GB)
Title: Improvements in Couplings for Shafting and the like.
IPC: F16D3/52
Filed: 1917-03-20
Abstract: 115,451. Heath, A. R. N., and Hall, J. & E. March 20, 1917. Universal joints.-A coup. ling for shafts comprises two members C, D free to slide on the ends of shafts A, B and formed with segmental teeth c<3>, d<3> which project into one plane and are encircled by a chain E. To secure flexibility, the sides of the teeth are bevelled as shown in Fig. 1, and the end teeth of the segments are bevelled at j, Fig. 3. Gaps between the segments provide flexibility in the direction of rotation. The projections d on the member D rock upon a rounded or bevelled nut f<2> screwed on to an extension of the shaft A. A cover F may be provided. The coupling is still effective if the chain or any of the teeth break.
Patent GB-1127458-A (GB)
Title: Process for the defined increase in the molecular weight of unsaturated polymerised hydrocarbons
IPC: C08C19/00
Filed: 1966-01-31
Abstract: 1,127,458. After-treating unsaturated polymerized hydrocarbons. CHEMISCHE WERKE HULS A.G. 31 Jan., 1966 [1 Feb., 1965], No. 4093/66. Heading C3P. Unsaturated polymerized hydrocarbons of molecular weight 1000 to 1,000,000 prepared by catalytic polymerization of diolefins or copolymerization of mono-olefins with diolefins or copolymerization of different diolefins with one another in inert solvents wherein after the polymerization is over or after the desired conversion has been achieved at least two reaction mixtures are mixed and then reacted with a catalyst system which consists of the following components (a) and (b):-(a) one or more compounds of general formula R  7 MeX y-n , where Me is boron, aluminium, gallium, beryllium, magnesium, calcium, zinc, silicon, tin, arsenic, antimony, titanium, zirconium, phosphorus, molybdenum, tungsten, bismuth, iron, mercury, cadmium, vanadium, uranium, or vanadyl, X is fluorine, chlorine, bromine or iodine; R is hydrogen, alkyl, cycloalkyl, aryl, aralkyl, alkoxy or sulphoxy or a carboxylate anion, y is the valency of the metal atom Me and n is from 0 to the valency of Me; and (b) one or more compounds containing active hydrogen, the catalyst component (a) being added in a concentration of 0À01 to 10% on the polymer used and the catalyst component (b) being added in an amount of 0À002 to 2 moles per mole of component (a). The component (a) may be added first followed by addition of component (b) all at once or in portions. The polymerized hydrocarbon may be polybutadiene, polyisoprene, copolymers of butadiene or isoprene with mono-olefins, e.g. styrene, ethylene-propylene copolymers and ethylene-propylene-dicyclopentadiene terpolymers. Active hydrogen containing compounds are water, alcohols, mercaptans, inorganic and organic acids, phenols, thiophenols, enolizable carbonyl compounds and imides. In examples mixtures of polybutadiene and polyisoprene are treated.
Patent GB-932496-A (GB)
Title: Novel benzodiazepine derivatives and a process for the manufacture thereof
IPC: C07D265/22
Filed: 1960-12-09
Abstract: The invention comprises compounds of the formula <FORM:0932496/IV(a)/1> wherein R1 is an alkyl group, R2 is alkyl, alkoxy, halogen or CF3, R3 is CF3, alkyl, alkoxy, alkylthio, hydroxyalkyl-thio, nitro, amino, alkylsulphinyl, alkylsulphonyl, hydroxy, acylamino or halogen and R4, which can only be present if R3 is present and is other than CF3, has any of the values given for R3 other than CF3 and wherein the dotted lines indicate that the substituents attached thereto are optional.  The compounds are prepared by acylating a corresponding 2-amino- or 2-alkylamino-benzodiazepine compound which may bear substituents R1, R2, R3 and R4 as defined above other than amino, and if desired, subjecting the product to one or more of the steps nitration, reduction and acylation to introduce, nitro, amino and/or acylamino substituents.  Preferred products are compounds wherein R1 is absent, R2 is absent or is a C1-7 alkyl or alkoxy group or a halogen atom, R3 is absent or is a C1-7 alkyl group or a halogen atom, e.g. a Cl, Br or CH3 substituent in the 7-position and R4 is absent or is a C1-7 alkyl group or a halogen atom.  Starting materials 7-Chloro-2-methylamino-5-(4-chlorophenyl)-3H-1, 4-benzodiazepine-4-oxide is prepared by condensing p-chloroaniline with p-chlorobenzoyl chloride, converting the resulting 2-amino-41,5-dichlorobenzophenone into its oxime, treating with chloro-acetyl chloride to give 6-chloro-2-chloromethyl-4-(4-chlorophenyl)- quinazoline-3-oxide which is then treated with methylamine.  Similarly 7-bromo-2-methylamino-5-(p-tolyl)-3H-1,4-benzodiazepine is made via 2-amino-5-bromo-41-methyl-benzophenone and its oxime, 2-chloroacetamido- 5-bromo-41-methyl-benzophenone oxime and 6-bromo-2-chloromethyl-4-(p-tolyl)-quinazoline.  Pharmaceutical preparations for use as sedatives, muscle relaxants and anticonvulsants comprise the above compounds of the invention in liquid or solid dosage forms such as injectables, elixirs, capsules, lozenges and tablets containing appropriate excipients or carriers. Specification 864,824 also is referred to.
Patent GB-960191-A (GB)
Title: Coated polypropylene fiber
IPC: D06M14/22
Filed: 1962-02-05
Abstract: Polypropylene fibres are coated by exposing them, in contact with oxygen-free carrier gas containing a vaporized vinylidine monomer, to a source of ionizing radiation until a uniform adherent layer of polymerized monomer has been deposited on the fibres, and then removing inadherent polymerized monomer from the coated fibres. Vinylidine monomers specified are vinyl formate, acetate, propionate, butyrate, crotonate and 2-ethylhexoate, ethylene, propylene, styrene, acrylic and methacrylic acids, ethyl, butyl, 2-ethylhexyl, glycidyl and ethylpyridylethyl acrylates, methyl and butyl methacrylates, acrylonitrile, mono-, di- and tri-allylamine, divinyl sulphone, N-vinyl pyrrolidone and vinyl ethoxysilane.  The carrier gas may be nitrogen and/or water vapour.  As ionizing radiation there may be used gamma-rays from a cobalt-60 source.  The examples describe the grafting of vinyl acetate, crotonate, propionate and 2-ethylhexoate and diallylamine on to polypropylene fibres, and the dyeing of the resulting fibres. Specification 960,192 is referred to.  Reference has been directed by the Comptroller to Specifications 843,190 and 850,471.
Patent GB-196739-A (GB)
Title: Improvements in and in means for measuring coal, granular and other like bulk material
IPC: G01F13/00
Filed: 1922-02-14
Abstract: 196,739. Roberts, G. W. P., and Gummer, C. Feb. 14, 1922. Flow meters for granular and other fluent solid materials.-A device for measuring the flow of coal or granular material down a shoot a comprises an endless chain b passing round a guide wheel c and having one part embedded in the material gravitating down the shoot so that the chain advances therewith and actuates a suitable indicator for weight, volume, or speed. A guide pipe d directs the chain to the centre of the shoot. Fig. 6 shows two links of a type of chain b fitted with enlargements r.
Patent GB-210990-A (GB)
Title: Improvements in or relating to spraying apparatus for treating roads and like surfaces
IPC: E01C19/17
Filed: 1923-02-14
Abstract: 210,990. Glossop, W. Feb. 14, 1923. Surface treatment with liquid materials.- A constant distance is maintained between the tar. sprayer 17 and the road surface when the chassis of the vehicle rises and. falls on the springs due to changes of load, by connecting the pivoted sprayer-supporting arm 19 to the chassis by a link 27 and bell-crank lever 22'. The arm 21 of the bell crank is connected with the wheel axle by a nut 24 and screwed rod 25. The position of the sprayer relatively to the road surface can be initially adjusted by turning the screwed rod by a handle 26, the linkage serving to maintain this position as the chassis rises and falls. Specification 202,402 is referred to.
Patent GB-557212-A (GB)
Title: Improvements in or relating to thermal insulation materials made from fibrous substances
IPC: A41D31/00
Filed: 1942-04-02
Abstract: 557,212. Woven fabrics. LISTER & CO., Ltd., and GARNER, W. April 2, 1942, No. 4426. Drawings to Specification. [Class 142 (iv)] [Also in Group VIII] A material having thermal and sound insulating properties comprises two textile fabrics into which are woven textile elements which connect the fabrics together as that they are spaced apart to entrap a relatively large volume of air. The connecting elements are distinct from the elements of which the fabrics are essentially composed. The space may be partly filled with a comparatively loosely packed mass of fibres, which may be obtained by forming the connecting elements of lightly twisted yarns or of crimped or curled fibres. The connecting elements may be resiliently flexible so as to resist compression The fabrics and connecting elements may be made of fibres of wool, cotton, mohair, kapok, glass fibres, asbestos or rayon, and the resiliency of the connecting elements may be obtained by impregnating the fibres with synthetic resin. A packing of loosely twisted rovings or slivers may be inserted between the two fabrics after weaving. The packing or the connecting elements may be wool wrapped around a filament of calcium alginate so that when the material is scoured the alginate will dissolve and the wool can expand. Two or more sheets of the material can be stuck, sewn or otherwise fastened together. Specification 550,525 is referred to.
Patent GB-514621-A (GB)
Title: Manufacture of cyanine dyes, and their use in modifying the properties of photographic emulsions
IPC: C09B23/16
Filed: 1938-02-12
Abstract: 514,621. Dyes; sensitizing photographic emulsions. KODAK, Ltd., and BEILENSON, B. Feb. 12, 1938, No. 4456. Addition to 478,945. Drawings to Specification. [Class 2 (iii)] [Also in Group XX] Photographic gelatino-silver halide emulsions are sensitized by means of dyes having (1) two heterocyclic nitrogen-containing nuclei, of which at least one is a 2 : 4-benzthiazine nucleus, linked together by a chain having an odd number of members and consisting of one nitrogen and three or more carbon atoms, or of one or more carbon and one or more nitrogen atoms, or (2) two 2: 4-benzthiazine nuclei linked together by a chain having an odd number of members and consisting of one nitrogen atom, or of one or more carbon atoms, or of one or more carbon atoms and one or more nitrogen atoms. The dyes may be employed in the form of the free ternary nitrogen bases. Such dyes may be made by condensing 3-amino-2 4-benzthiazine or a quaternary salt thereof or 3-methyl-2:4- benzthiazine with a heterocyclic nitrogen compound, especially a quaternary heterocyclic ammonium salt, containing a reactive replaceable substituent in the alpha- or gamma-position to the nitrogen, or on a methine chain attached at the alpha- or gamma-position. Examples are given of the preparation of dyes from the following components : 3-amino-2 : 4-benzthiazine ethiodide and 1-#-acetanilidobenzthiazole ethiodide ; 3-methylthiol-2 4-benzthiazine, methyl-ptoluene sulphonate and 3-methyl-2 : 4-benzthiazine ; 3-methyl-2 : 4-benzthiazine and 1-#-acetanilidovinyl-benzthiazole (or -benzoxazole) ethiodide ; 3-methyl-2 : 4-benzthiazine and 1-#-acetanilidovinyl-5: 6-benzbenzoxazole (or -3: 4-benzbenzthiazole) ethiodide; and 3-methyl-2: 4-benzthiazine and 1-#-acetanilidovinyl-benzselenazole ethiodide. Details of the preparation of the emulsions and spectrograms of the dyes are given. Specifications 447,038 and, 447,109, [Group XX], are referred to.
Patent GB-701920-A (GB)
Title: Improved electric soldering iron
IPC: B23K3/03
Filed: 1951-02-24
Abstract: 701,920. Soldering irons. COLE, Ltd., E. K., and KING, A. E. May 23, 1952 [Feb. 24, 1951], No. 4528/51. Class 83 (4). [Also in Group XI] An electric soldering iron for wires in radio receivers comprises a bit 2 of relatively good conductivity e.g. copper, which is a push fit over the end of a metal tube 1 of relatively low conductivitv e.g. stainless steel. A heating resistance wire 5 is threaded through a ceramic tube 8 (see Group XI) placed in the tube 1 adjacent the bit, the thin annular wall of which may completely encircle the part of the tube 1 containing the heater. The handle 3 is in two longitudinal moulded sections and is held assembled by a metal ferrule 9 and a bolt passing through a hole 10 in each section. The bit may be removed by rolling it between flat hard surfaces. When the number of joints to be made in a unit time is small, a steel it may be used.
Patent GB-231296-A (GB)
Title: Improvements in, or connected with, the treatment of oleaginous seeds, or other oleaginous vegetable substances, for the extraction of oil therefrom
IPC: C11B1/04
Filed: 1924-02-22
Abstract: 231,296. Kammermann, G. Feb. 22, 1924. Addition to 202,256. Fatty oils, extracting.-The extraction of oil from seeds or other vegetable matter is facilitated bv subjecting the seeds &c., prior to the pressure or other operation, to a sudden vacuum and then adding moisture equal to or in excess of that' lost. Using the apparatus shown, jacketed digesters A, B are connected alternatelv to a reservoir G exhausted continuously by a pump E. The seeds are then moistened in the digesters by pressure steam, or in an ordinary cooker. The apparatus may be used to carry out the process of the parent Specification.
Patent GB-347781-A (GB)
Title: Improvements in or relating to direction signalling apparatus for use on motor vehicles
IPC: B60Q1/42
Filed: 1930-02-11
Abstract: 347,781. Road-traffic signals on vehicles. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.- (Protectall Motor Signal Inc. ; 107, East Washington Street, Syracuse, New York, U.S.A.) Feb. 11, 1930, No. 4617. [Class 118 (ii).] Relates to direction signals for use on motor vehicles of the kind which are operated by hand and automatically nullified by the return movement of the steering wheel. The signal may be an arrow on an illuminated disc 1 which is rotated through 90 or 270‹ to give the " left " or " right " signals, by the movement in opposite directions of a hand-lever 21, which turns a cam 30 on a spindle 28 and actuates a wire 8 through a member 34 bearing on the cam. The signal disc 1 is actuated by a toothed segment 4 controlled by the wire 8 and a returning spring 7. The tail-light 10 illumiantes the disc, and a stop-light 11 actuated by the brake is included in the casing 12. On moving the hand-lever 21 to give a signal, the spindle 28 is moved vertically up, by a spring 37 and a release action of the cam 30, to bring the upper arm 25 of a pivoted lever 24 into the path of abutments 26 on the steering wheel. The initial movement of the steering-wheel merely rocks the lever 24 idly, but the return movement re-sets the hand-lever 21 owing to an abutment 27 engaging the lever 24. In a modification, the hand-lever is a resilient switch arm for controlling the operation of a reversible electromotor for setting the signal.
Patent GB-798391-A (GB)
Title: Process for improving the cutting speeds of carbon steels and ferrous alloys, and increasing their resistance to wear and decreasing their coefficient of friction
IPC: C21C7/00
Filed: 1955-02-16
Abstract: The resistance to wear and the cutting speed of plain carbon and alloy steels are improved by adding to the steels, after production and at a temperature as near as possible to 1400 DEG C., between 50 and 60 grms. of pure sulphur per 100 kilograms of the steel.  The sulphur to be added may be placed in the bottom of the ingot mould or, in the case of a steel casting, two thirds of the sulphur may be placed at the lowest point of the mould and the remainder suspended in one or more aluminium boxes at mid-height of the mould.
Patent GB-452418-A (GB)
Title: Improvements in and relating to steam power or heating plants
IPC: F01K13/00
Filed: 1935-02-13
Abstract: 452,418. Steam power plant. AKT.- GES. BROWN, BOVERI, & CIE, Baden, Switzerland. Feb. 13, 1935, No. 4700. Convention date, Feb. 13, 1934. [Classes 110 (iii) and 122 (iii)] In order to reduce to a minimum the external power required in a steam-power or heating- plant with pressure fired steam or heat generator and auxiliary machines such as compressors and pumps for the operation of the plant, the auxiliary machines are arranged in groups, each being provided with an auxiliary driving machine in addition to the main driving-machine for the auxiliary machines, the auxiliary driving- machines having a lower speed and smaller power than the main driving machine which only operates during full load. In the arrangement shown, the air compressor 2 for the combustion space 1 is driven normally by a gas turbine 3 and a supplementary steam turbine 4 through a clutch coupling 7. At starting these are driven by a motor 5 through a clutch 6. The feed-water pump 15 and the boiler circulating-water pump 16 are driven by an electric motor 17 connected up to auxiliary mains 18 which are normally fed from a dynamo 19 driven by the main turbine 8, or are supplied from a battery 20, or a charging set comprising a motor 22 and a generator 21. The condenser circulating-pump 11 and the condensate pump 12 are driven from the main turbine through gearing 13. The auxiliaries are divided into groups which run at different speeds at starting. The fuel pump, lubricating- and governing-oil pumps for the steam generator and main engine are run at full speed at starting ready for full load. Also the exciter for the generator is run at full voltage. The steam-generator circulating pump and feed pumps run at from 20 to 50 per cent full load with À8 to 12À5 per cent normal power. The circulating, condensate and air pumps run at 20 to 50 per cent speed, or need not operate until the main engine starts. The combustion-air charging blower may start up with fuel supply reduced to 10 or 20 per cent and give 10 to 20 per cent normal air supply which would require from 1 to 8 per cent full load power. The starting motors are automatically disconnected when the normal driving element takes over the drive. Evaporation in the generator may be prevented by keeping the hot water under pressure when water is required for heating-purposes.
Patent GB-1122344-A (GB)
Title: Improvements in or relating to radiators
IPC: F24H9/12
Filed: 1967-01-31
Abstract: 1,122,344. Junction pieces. NORDISKA ARMATURFABRIKERNA A.B. 31 Jan., 1967 [10 Feb., 1966], No. 4748/67. Heading F2G. [Also in Division F4] In a radiator system for space heating (see Division F4) an obstruction 10 is formed between the outlet 3 of the radiator 1 and a connecting piece 8 to prevent hot water from flowing into the radiator outlet 3 from a by-pass conduit 7. As shown, the obstruction 10 is formed in a channel 11 connecting the outlet 3 with the passage 12 of the connecting piece 8 and is such that the highest point of the obstruction preferably lies above the uppermost portion of the bore of the outlet 3. Alternatively the obstruction 10 may take the form of a piece of piping inserted between the outlet 3 and the connecting piece 8 bent in such a way that an obstruction is formed.
Patent GB-811274-A (GB)
Title: Improvements relating to neutralizing circuits for use in radio receivers
IPC: H03D7/12
Filed: 1957-02-12
Abstract: 811,274. Transistor frequency-changing circuits. ADMIRAL CORPORATION. Feb. 12, 1957 [Feb. 20, 1956], No. 4749/57. Class 40 (6). In a transistor superheterodyne radio receiver radiation of local oscillations is prevented by feeding into the aerial circuits an out-of-phase cancelling voltage. As applied to a self-oscillating mixer, in which the signal is applied from aerial circuit 44, Fig. 2, to the base electrode 26 and self-oscillation is obtained by back-coupling a coil 50 in the collector circuit to the tuned oscillator circuit 32, which is connected in the emitter electrode circuit, local oscillations are derived from a coupling winding 35 and applied to the aerial circuit via condenser 38 and resistor 39 so as to cancel oscillations reaching that circuit via the inter-electrode capacities of the transistor. The tuned I.F. output circuit 41 is connected between the collector electrode of the transistor and the feedback coil 50.
Patent GB-571594-A (GB)
Title: Improvements in automatic stokers for steam generators
IPC: F23K3/16
Filed: 1943-03-24
Abstract: 571,594. Rotary distributer stokers. BENNIS COMBUSTION, Ltd., and BENNIS, A. W. March 24, 1943, No. 4763. [Class 78 (i)] In stokers in which the fuel is fed to the grate by a rotary distributer A, the fuel falls by gravity from a hopper C on to a feed plate B, and is fed by means such as D over the end B<1> of the feed plate so as to fall on to the distributer and be distributed by the impact of the falling fuel with the distributer. In the construction shown in Figs. 1 and 3 the distributer A is cylindrical, and fuel is fed from the hopper C by a reciprocating plunger D, over a plate B the delivery edge of which is shaped as shown in Fig. 3, so that fuel is fed at the centre beyond the axis of the distributer and is therefore thrown downwardly, while at the sides the fuel is fed behind the distributer axis and is thrown upwardly, thus securing even distribution over the grate area of the furnace. The plate B is preferably adjustable by means of a bolt F and slot G ; it may be made in one piece and its edges may be adjustable, or it may be made in adjustable strips B Fig. 3. A rotary feeder K, Fig. 4 (not shown) may be used above the plate B instead of the plunger D.